Brief discussion on overall knowledge about textile printing process- types, process, methods. Feel free to read and share with others. You may also find your desired presentation topics on my other slides.
Thank you.
Now we are in the age of printing, textile printing becomes popular day by day. Screen printing has been taken large place in textile printing sector. Trying to give a short description on it.
This document discusses resin finishing, which is a process that adds crease resistance and recovery properties to cotton fabrics. It involves applying cross-linking resins like DMDHEU to the fabric using a chemical finishing process with water and heat. The resins chemically bond to the cotton fibers and prevent creasing during wear and laundering. The document covers the types of resins used, the objectives of resin finishing, its advantages and disadvantages, how resin concentration and curing temperature affect properties, and provides an example resin finishing recipe.
This document discusses different methods of textile printing. It begins by explaining the basic process of printing designs on fabric using blocks, rollers or screens to apply color. It then compares automatic and hand printing methods. The main methods covered are direct, discharge and resist printing. Specific techniques like block, screen and digital printing are explained in terms of how they work, their advantages and disadvantages. The document provides an overview of the various techniques used in textile printing.
Garment dyeing involves dyeing fully fashioned garments rather than constructing them from pre-dyed fabrics. It provides flexibility for fast changing fashion trends. The document discusses factors to consider for garment dyeing such as fabric selection, accessories, sewing threads and dyeing machinery. Paddle machines and rotary drums are commonly used dyeing machines. Paddle machines use paddles to gently move garments through the dye liquor while rotary drums rotate perforated drums of garments through a stationary dye bath. Proper fabric preparation, accessory selection, and dyeing parameters are required for optimal garment dyeing results.
This document summarizes scouring and bleaching processes in textiles. Scouring removes impurities like oils, wax and dirt to make materials hydrophilic. Bleaching destroys natural colors to produce a white material. Key points include: scouring uses saponification and emulsification, while bleaching uses hypochlorite or peroxide reactions; continuous processes use a J-box machine and batch processes use a kier boiler; the mechanisms and importance of each process are described.
This document discusses common defects that can occur during dyeing and printing of textiles. It describes two main methods for adding color to fabrics - dyeing and printing. Dyeing involves applying color evenly throughout the fabric using dye solutions, while printing uses localized application of dyes or pigments in a paste form to create patterns. Common dyeing defects include uneven color, crocking, stains and softener marks. Printing defects can result from faulty processes or fabric imperfections, and include issues like misprints, uneven color, water marks, misregistration and bleeding of dyes. Potential causes and remedies are provided for many of the typical defects.
In both print Rubbers is used as the printing paste. Crack printing is near similar as rubber printing process but additional crack paste is used before applying rubber printing paste by the screen printer on the fabric. In crack print when pull the print, it seem like crack, but rubber print only rubber and fixer are commonly used no use crack inks to produce crack effect. So when pull the rubber print, it seem like solid, smooth, plain and no crack effect.
Now we are in the age of printing, textile printing becomes popular day by day. Screen printing has been taken large place in textile printing sector. Trying to give a short description on it.
This document discusses resin finishing, which is a process that adds crease resistance and recovery properties to cotton fabrics. It involves applying cross-linking resins like DMDHEU to the fabric using a chemical finishing process with water and heat. The resins chemically bond to the cotton fibers and prevent creasing during wear and laundering. The document covers the types of resins used, the objectives of resin finishing, its advantages and disadvantages, how resin concentration and curing temperature affect properties, and provides an example resin finishing recipe.
This document discusses different methods of textile printing. It begins by explaining the basic process of printing designs on fabric using blocks, rollers or screens to apply color. It then compares automatic and hand printing methods. The main methods covered are direct, discharge and resist printing. Specific techniques like block, screen and digital printing are explained in terms of how they work, their advantages and disadvantages. The document provides an overview of the various techniques used in textile printing.
Garment dyeing involves dyeing fully fashioned garments rather than constructing them from pre-dyed fabrics. It provides flexibility for fast changing fashion trends. The document discusses factors to consider for garment dyeing such as fabric selection, accessories, sewing threads and dyeing machinery. Paddle machines and rotary drums are commonly used dyeing machines. Paddle machines use paddles to gently move garments through the dye liquor while rotary drums rotate perforated drums of garments through a stationary dye bath. Proper fabric preparation, accessory selection, and dyeing parameters are required for optimal garment dyeing results.
This document summarizes scouring and bleaching processes in textiles. Scouring removes impurities like oils, wax and dirt to make materials hydrophilic. Bleaching destroys natural colors to produce a white material. Key points include: scouring uses saponification and emulsification, while bleaching uses hypochlorite or peroxide reactions; continuous processes use a J-box machine and batch processes use a kier boiler; the mechanisms and importance of each process are described.
This document discusses common defects that can occur during dyeing and printing of textiles. It describes two main methods for adding color to fabrics - dyeing and printing. Dyeing involves applying color evenly throughout the fabric using dye solutions, while printing uses localized application of dyes or pigments in a paste form to create patterns. Common dyeing defects include uneven color, crocking, stains and softener marks. Printing defects can result from faulty processes or fabric imperfections, and include issues like misprints, uneven color, water marks, misregistration and bleeding of dyes. Potential causes and remedies are provided for many of the typical defects.
In both print Rubbers is used as the printing paste. Crack printing is near similar as rubber printing process but additional crack paste is used before applying rubber printing paste by the screen printer on the fabric. In crack print when pull the print, it seem like crack, but rubber print only rubber and fixer are commonly used no use crack inks to produce crack effect. So when pull the rubber print, it seem like solid, smooth, plain and no crack effect.
Thrupti Designers is a renowned garment printing company located in Bangalore, India that was established in 2004. It has the capacity to produce 30,000 pieces per day using single color printing. The company works with several major apparel brands and exporters. It is equipped with various machinery for screen printing, including 12 pallet printing machines of various colors. The company offers different types of prints using various techniques like plastisol, pigment, discharge, and organic prints. It analyzes the costs and minimum order quantities associated with each type of print. The company also describes potential printing defects and their causes.
This document provides information about various printing methods and processes. It begins by describing direct printing, resist printing, and discharge printing methods. It then discusses different types of printing methods known, including screen printing, and provides steps for processes like design to screen and after production primary printing inspection. The document also includes descriptions of specific printing techniques like roller printing, block printing, dye sublimation printing, and heat transfer printing. It concludes by comparing automatic print versus hand print.
Printing means localized application of dyes on the fabric according to design. For printing it is required to produce printing paste. Printing Paste is a viscous paste which is made from pigments, thickeners and many of chemical. A good printing paste is mainly responsible for good printing effect. So it is very important to make a printing paste. There are different types of ingredients are used to make printing paste
Generally following ingredients are used in printing paste:
Dyestuffs or pigment.
Wetting agents.
Thickener.
Solvents dispersing agents.
Defoaming agents.
Oxidizing and reducing agents.
Catalyst and oxygen carrier.
Acid and alkali.
Career and swelling agent.
Miscellaneous agent
This document discusses garment dyeing, including the process, necessary preparations, equipment used, techniques, and advantages/disadvantages. It explains that garment dyeing involves dyeing fully constructed garments. Proper fabric and thread selection is important to ensure uniform dyeing and shrinkage. Common dyeing machines include paddle machines and rotary drums. Techniques include tie dyeing, dip dyeing, spray dyeing, and others. Garment dyeing allows for flexibility but has higher costs and quality risks compared to pre-dyed fabrics.
Puff print is a common print in Fashion Industry. Some time we can call it Emboss Print or foam print . It is almost similar to the rubber print we can make this print in any color. Mainly buyer asked this print on Knitted T-Shirt.
Textile finishes improve the appearance, feel, and functionality of fabrics. There are two main types of finishes - aesthetic finishes which improve visual qualities like texture or sheen, and functional finishes which provide benefits like stain resistance or crease resistance. Finishing processes include scouring to remove impurities, bleaching to produce a pure white color, dyeing or printing to add color patterns, and calendaring to produce a smooth texture. Properly finished fabrics have enhanced durability, comfort, and performance properties for long-lasting use.
Dyeing is the application of dyes or pigments on textile materials such as fibers, yarns, and fabrics with the goal of achieving color with desired color fastness. Dyeing is normally done in a special solution containing dyes and particular chemical material. … In dyeing, it is applied to the entire textile.
Advancement in technology has paved the way for a much better garment printing. The art of direct printing on garment is simplified by the technology every day. You can already choose and create your own design for t-shirts and other garments regardless of how complex the design is.Every make a Confusion about printing, i try to make it clear.
The document discusses pigment printing, which is a type of textile printing where insoluble pigments are fixed to fabric using a binder. Pigment printing pastes contain thickening agents, binders, and other auxiliaries. It is the most economical printing process as it does not require washing after printing. Screen printing and roller printing are common methods used to apply pigment pastes to fabric in defined patterns.
Spirality and shrinkage are common problems in knitted fabrics that can be influenced by various factors. [1] Spirality occurs when wales are not perpendicular to courses and is affected by yarn twist, count, fabric structure, and machine settings. [2] Shrinkage is a decrease in length or width upon washing and is mainly due to yarn swelling; it can be impacted by GSM, stitch length, and fabric type. [3] The document discusses measuring and reducing spirality and shrinkage through parameters like yarn and fabric properties as well as processing methods.
Printing can also be defined as localized dyeing.In all over printing, printing is done all over the fabric or garments.Mainly it is done by screen.At the beginning collect of Frame. After that choose of mesh depend on the design or process of printing.
This document provides information about various types of textile dyeing and finishing machinery. It begins by introducing the author and their credentials. It then provides an overview of different types of dyeing machines like package dyeing machines, winch dyeing machines, jet dyeing machines, and their basic working principles. It also describes machines used in other textile processes like hydro-extractors, dewatering machines, slitting machines, compactors, stenters, singeing and desizing ranges, and scouring and bleaching ranges. For each machine type, it mentions common brands and provides photos or diagrams along with key specifications and features.
Roller printing is a textile printing technique invented in 1783 that uses engraved copper rollers instead of hand-carved blocks. The design is engraved onto the copper roller, which is then electroplated with chrome for durability. Multiple rollers can be used to print one repeat of a design onto fabric passing over a central cylinder. Defects can occur due to scratches, loose threads, or uneven pressure, but roller printing allows for higher production compared to earlier techniques.
Chemicals and Auxiliaries used in Textile Wet ProcessingMashrur Wasity
This document discusses various chemicals and auxiliaries used in textile wet processing. It defines auxiliaries as chemicals that help processing operations like preparation, dyeing and printing work more efficiently. Some common auxiliaries mentioned include surfactants, wetting agents, sequestering agents, dispersing agents and emulsifiers. Basic chemicals used in wet processing like acids, bases, salts, oxidizing and reducing agents are also discussed. The roles and examples of various chemicals are provided in concise points.
Basic knowledge about blend dyeing
Dyeing of Blended Fibres & Fabrics
Blends:
Blends are any textile material from fiber through yarn to fabric which are deliberate combination of chemically or physically different fibrous polymer. Cotton and Polyester blend is an example of chemically different blend and Cotton and Viscose is physically different blend because both are cellulosic.
Reason for blending:
1.Economy: The dilution of an expensive fibre by blending with a cheaper substitute.
2.Durability: The incorporation of a more durable component to extend the useful life of a relatively fragile fibre.
3.Physical properties: A compromise to take advantage of desirable performance charactristics contribuition by both fibre components.
4.Color: The development of new fabric design for garments incorporating multicolor effect.
5.Appearance: The attainment of attractive appearance & perceptible qualities using combinations of yarns of different lusture, crimp or denier which still differ in appearance even when dyed with same color.
6.Other reasons-
Blending develops fibre properties.
Colorant modification is possible by blending.
Finishing process modification.
Improved moisture absorption, antistatic characteristics, reduced pilling, improved abrasion resistance.
Dyeing Possibilities with Blends:
1.Union Dyeing:
• This is suitable for fabrics containing two fibres to dye them in a single uniform colour, each dye suitable for one kind of fibre in the blend.
• Union dyeing is same as cross dyeing except that instead of multi-colour effects. One solid colour is produced. The dyer accomplishes this by using two or more classes of dye, each of the same colours.
• Different fibres may require different dyes to obtain the same colour; this may be done by putting the appropriate colour dye that is specific to each type of fibre in to one dye bath.
• For eg: a fabric composed of rayon and acetate can be dyed with a solid colour green by using a direct dye for the rayon, and a disperse dye of the same colour for the acetate.
2.Resist/Reserve dyeing:
• In resist dyeing at least one (but not all) of the components of the blend remains essentially undyed i.e almost white.
3.Cross dyeing:
• Cross dyeing produces fibres of contrasting color
• This is two types-
a)Shadow effect/Tone-in-Tone dyeing:
Two fibres are dyed in same hue & brightness but the depth is different. It is called tone-in-tone or shadow effect.
b)Contrast effect:
Two fibres are dyed with strong difference in hue, brightness & depth.This is called contrast effect. Pleasing final appearance is important here.
This document provides information about various printing methods used in the textile industry. It begins by describing direct printing, resist printing, and discharge printing. It then lists and provides brief descriptions of different types of printing methods, such as screen printing, flock printing, foil printing, heat transfer printing, and dye sublimation printing. The document also includes diagrams of screen printing and rotary screen printing processes. It provides more detailed explanations of techniques like block printing, dye sublimation printing, heat transfer printing, and batik.
The document discusses digital printing of textiles compared to analog printing methods. Digital printing involves storing the design electronically and using an inkjet printer to apply the design to fabric without screens or plates. It has advantages over analog methods like quicker turnaround times, lower costs for short runs, and more design flexibility. The two main inkjet technologies discussed are continuous inkjet which uses electrically-charged droplets, and drop-on-demand inkjet which forms droplets only as needed using thermal or piezoelectric methods.
reactive Dyeing of cotton knitted fabricsOliyad Ebba
Exhaust dyeing is commonly used to dye cotton and cotton blend knitted fabrics. It involves dye migration from the dye liquor into the fabric batch using exhausting chemicals and circulation. Reactive and disperse dyes are most commonly used. Key parameters include temperature, speed, pressure, and cycle time. Proper preparation of dyes, salts, and chemicals is important to prevent issues. Checking points after dyeing ensure the required shade and pH are met before draining. An aftertreatment process includes neutralization, soaping, and fixing to improve wash fastness. Safety equipment and material safety data sheets are necessary in the dye house.
Printing-Reactive & Discharge print Presentation By Sukhvir SabharwalSukhvir Sabharwal
Hi All,
Pls find PPT on reactive and discharge print which shows the difference to understand both print styles.
Hope this would help you !
Best,
Sukhvir
The document discusses the latest innovations in dyeing technology for textiles. It describes several major types of dyes used in textile finishing and their classifications. New developments in dyeing machinery aim to improve quality, productivity, and sustainability. Recent innovations include e-control dyeing concepts using minimal chemicals, batch dyeing developments for safe fabric transport, and vibratronic dryers for uniform drying. Novel dyes are also discussed, including dyes bound to fibers by high molecular weight compounds and electrochemical dyeing as an efficient and environmentally friendly process. The document concludes that while dyeing methods have changed little over time, technology continues to drive new innovations in the textile industry.
Textiles leave one of the largest water footprints on the planet and dyeing poses an especially big problem.
Textile dyeing is the No. 2 polluter of clean water on earth, following agriculture.
Dye houses in India and China are notorious for not only exhausting local water supplies, but for dumping untreated wastewater into local streams and rivers.
Thrupti Designers is a renowned garment printing company located in Bangalore, India that was established in 2004. It has the capacity to produce 30,000 pieces per day using single color printing. The company works with several major apparel brands and exporters. It is equipped with various machinery for screen printing, including 12 pallet printing machines of various colors. The company offers different types of prints using various techniques like plastisol, pigment, discharge, and organic prints. It analyzes the costs and minimum order quantities associated with each type of print. The company also describes potential printing defects and their causes.
This document provides information about various printing methods and processes. It begins by describing direct printing, resist printing, and discharge printing methods. It then discusses different types of printing methods known, including screen printing, and provides steps for processes like design to screen and after production primary printing inspection. The document also includes descriptions of specific printing techniques like roller printing, block printing, dye sublimation printing, and heat transfer printing. It concludes by comparing automatic print versus hand print.
Printing means localized application of dyes on the fabric according to design. For printing it is required to produce printing paste. Printing Paste is a viscous paste which is made from pigments, thickeners and many of chemical. A good printing paste is mainly responsible for good printing effect. So it is very important to make a printing paste. There are different types of ingredients are used to make printing paste
Generally following ingredients are used in printing paste:
Dyestuffs or pigment.
Wetting agents.
Thickener.
Solvents dispersing agents.
Defoaming agents.
Oxidizing and reducing agents.
Catalyst and oxygen carrier.
Acid and alkali.
Career and swelling agent.
Miscellaneous agent
This document discusses garment dyeing, including the process, necessary preparations, equipment used, techniques, and advantages/disadvantages. It explains that garment dyeing involves dyeing fully constructed garments. Proper fabric and thread selection is important to ensure uniform dyeing and shrinkage. Common dyeing machines include paddle machines and rotary drums. Techniques include tie dyeing, dip dyeing, spray dyeing, and others. Garment dyeing allows for flexibility but has higher costs and quality risks compared to pre-dyed fabrics.
Puff print is a common print in Fashion Industry. Some time we can call it Emboss Print or foam print . It is almost similar to the rubber print we can make this print in any color. Mainly buyer asked this print on Knitted T-Shirt.
Textile finishes improve the appearance, feel, and functionality of fabrics. There are two main types of finishes - aesthetic finishes which improve visual qualities like texture or sheen, and functional finishes which provide benefits like stain resistance or crease resistance. Finishing processes include scouring to remove impurities, bleaching to produce a pure white color, dyeing or printing to add color patterns, and calendaring to produce a smooth texture. Properly finished fabrics have enhanced durability, comfort, and performance properties for long-lasting use.
Dyeing is the application of dyes or pigments on textile materials such as fibers, yarns, and fabrics with the goal of achieving color with desired color fastness. Dyeing is normally done in a special solution containing dyes and particular chemical material. … In dyeing, it is applied to the entire textile.
Advancement in technology has paved the way for a much better garment printing. The art of direct printing on garment is simplified by the technology every day. You can already choose and create your own design for t-shirts and other garments regardless of how complex the design is.Every make a Confusion about printing, i try to make it clear.
The document discusses pigment printing, which is a type of textile printing where insoluble pigments are fixed to fabric using a binder. Pigment printing pastes contain thickening agents, binders, and other auxiliaries. It is the most economical printing process as it does not require washing after printing. Screen printing and roller printing are common methods used to apply pigment pastes to fabric in defined patterns.
Spirality and shrinkage are common problems in knitted fabrics that can be influenced by various factors. [1] Spirality occurs when wales are not perpendicular to courses and is affected by yarn twist, count, fabric structure, and machine settings. [2] Shrinkage is a decrease in length or width upon washing and is mainly due to yarn swelling; it can be impacted by GSM, stitch length, and fabric type. [3] The document discusses measuring and reducing spirality and shrinkage through parameters like yarn and fabric properties as well as processing methods.
Printing can also be defined as localized dyeing.In all over printing, printing is done all over the fabric or garments.Mainly it is done by screen.At the beginning collect of Frame. After that choose of mesh depend on the design or process of printing.
This document provides information about various types of textile dyeing and finishing machinery. It begins by introducing the author and their credentials. It then provides an overview of different types of dyeing machines like package dyeing machines, winch dyeing machines, jet dyeing machines, and their basic working principles. It also describes machines used in other textile processes like hydro-extractors, dewatering machines, slitting machines, compactors, stenters, singeing and desizing ranges, and scouring and bleaching ranges. For each machine type, it mentions common brands and provides photos or diagrams along with key specifications and features.
Roller printing is a textile printing technique invented in 1783 that uses engraved copper rollers instead of hand-carved blocks. The design is engraved onto the copper roller, which is then electroplated with chrome for durability. Multiple rollers can be used to print one repeat of a design onto fabric passing over a central cylinder. Defects can occur due to scratches, loose threads, or uneven pressure, but roller printing allows for higher production compared to earlier techniques.
Chemicals and Auxiliaries used in Textile Wet ProcessingMashrur Wasity
This document discusses various chemicals and auxiliaries used in textile wet processing. It defines auxiliaries as chemicals that help processing operations like preparation, dyeing and printing work more efficiently. Some common auxiliaries mentioned include surfactants, wetting agents, sequestering agents, dispersing agents and emulsifiers. Basic chemicals used in wet processing like acids, bases, salts, oxidizing and reducing agents are also discussed. The roles and examples of various chemicals are provided in concise points.
Basic knowledge about blend dyeing
Dyeing of Blended Fibres & Fabrics
Blends:
Blends are any textile material from fiber through yarn to fabric which are deliberate combination of chemically or physically different fibrous polymer. Cotton and Polyester blend is an example of chemically different blend and Cotton and Viscose is physically different blend because both are cellulosic.
Reason for blending:
1.Economy: The dilution of an expensive fibre by blending with a cheaper substitute.
2.Durability: The incorporation of a more durable component to extend the useful life of a relatively fragile fibre.
3.Physical properties: A compromise to take advantage of desirable performance charactristics contribuition by both fibre components.
4.Color: The development of new fabric design for garments incorporating multicolor effect.
5.Appearance: The attainment of attractive appearance & perceptible qualities using combinations of yarns of different lusture, crimp or denier which still differ in appearance even when dyed with same color.
6.Other reasons-
Blending develops fibre properties.
Colorant modification is possible by blending.
Finishing process modification.
Improved moisture absorption, antistatic characteristics, reduced pilling, improved abrasion resistance.
Dyeing Possibilities with Blends:
1.Union Dyeing:
• This is suitable for fabrics containing two fibres to dye them in a single uniform colour, each dye suitable for one kind of fibre in the blend.
• Union dyeing is same as cross dyeing except that instead of multi-colour effects. One solid colour is produced. The dyer accomplishes this by using two or more classes of dye, each of the same colours.
• Different fibres may require different dyes to obtain the same colour; this may be done by putting the appropriate colour dye that is specific to each type of fibre in to one dye bath.
• For eg: a fabric composed of rayon and acetate can be dyed with a solid colour green by using a direct dye for the rayon, and a disperse dye of the same colour for the acetate.
2.Resist/Reserve dyeing:
• In resist dyeing at least one (but not all) of the components of the blend remains essentially undyed i.e almost white.
3.Cross dyeing:
• Cross dyeing produces fibres of contrasting color
• This is two types-
a)Shadow effect/Tone-in-Tone dyeing:
Two fibres are dyed in same hue & brightness but the depth is different. It is called tone-in-tone or shadow effect.
b)Contrast effect:
Two fibres are dyed with strong difference in hue, brightness & depth.This is called contrast effect. Pleasing final appearance is important here.
This document provides information about various printing methods used in the textile industry. It begins by describing direct printing, resist printing, and discharge printing. It then lists and provides brief descriptions of different types of printing methods, such as screen printing, flock printing, foil printing, heat transfer printing, and dye sublimation printing. The document also includes diagrams of screen printing and rotary screen printing processes. It provides more detailed explanations of techniques like block printing, dye sublimation printing, heat transfer printing, and batik.
The document discusses digital printing of textiles compared to analog printing methods. Digital printing involves storing the design electronically and using an inkjet printer to apply the design to fabric without screens or plates. It has advantages over analog methods like quicker turnaround times, lower costs for short runs, and more design flexibility. The two main inkjet technologies discussed are continuous inkjet which uses electrically-charged droplets, and drop-on-demand inkjet which forms droplets only as needed using thermal or piezoelectric methods.
reactive Dyeing of cotton knitted fabricsOliyad Ebba
Exhaust dyeing is commonly used to dye cotton and cotton blend knitted fabrics. It involves dye migration from the dye liquor into the fabric batch using exhausting chemicals and circulation. Reactive and disperse dyes are most commonly used. Key parameters include temperature, speed, pressure, and cycle time. Proper preparation of dyes, salts, and chemicals is important to prevent issues. Checking points after dyeing ensure the required shade and pH are met before draining. An aftertreatment process includes neutralization, soaping, and fixing to improve wash fastness. Safety equipment and material safety data sheets are necessary in the dye house.
Printing-Reactive & Discharge print Presentation By Sukhvir SabharwalSukhvir Sabharwal
Hi All,
Pls find PPT on reactive and discharge print which shows the difference to understand both print styles.
Hope this would help you !
Best,
Sukhvir
The document discusses the latest innovations in dyeing technology for textiles. It describes several major types of dyes used in textile finishing and their classifications. New developments in dyeing machinery aim to improve quality, productivity, and sustainability. Recent innovations include e-control dyeing concepts using minimal chemicals, batch dyeing developments for safe fabric transport, and vibratronic dryers for uniform drying. Novel dyes are also discussed, including dyes bound to fibers by high molecular weight compounds and electrochemical dyeing as an efficient and environmentally friendly process. The document concludes that while dyeing methods have changed little over time, technology continues to drive new innovations in the textile industry.
Textiles leave one of the largest water footprints on the planet and dyeing poses an especially big problem.
Textile dyeing is the No. 2 polluter of clean water on earth, following agriculture.
Dye houses in India and China are notorious for not only exhausting local water supplies, but for dumping untreated wastewater into local streams and rivers.
This document summarizes yarn and carpet printing technologies. It discusses various yarn printing methods like solution dyeing, hang/skein dyeing, and space dyeing. For carpet printing, it describes direct printing, discharge printing, resist printing, and pigment printing methods. It also discusses chemicals and machinery used like flat-screen and rotary screen printing machines, and jet printing machines. In conclusion, it provides an overview of yarn and carpet printing processes and technologies.
The document provides information about discharge printing, which is a textile printing process where a bleaching agent is printed onto previously dyed fabrics to remove some or all of the original color. It discusses how discharge printing works, the required fabrics, discharge agents used, importance of discharge styles, discharge screen printing process, positives and negatives of discharge screen printing, and how cotton and polyester fabrics give different results. The document contains detailed technical explanations and considerations for discharge printing.
The document discusses common problems that occur during the dyeing process and proposes remedies. It outlines issues that can arise during pretreatment, dyeing, and finishing. Poor pretreatment is identified as the source of many problems, contributing to 70% of faults. The document then details specific issues like poor absorbency, stains, and shade changes during pretreatment. For dyeing, it discusses parameters like time, temperature, and chemical concentrations. Finally, it provides remedies for many common problems, such as optimizing dyeing processes, chemical selections, and machine adjustments.
Lecture 8 digital printing of textiles (condensed)Adane Nega
Digital printing of textiles allows for mass customization by printing designs directly from digital files without screens or plates. It provides benefits like quick design changes and short runs but adoption has been slow due to limitations in printing speed. Improvements in inkjet printing technology aim to increase speeds to compete with conventional rotary screen printing for bulk production. While digital printing is established for sampling, the future vision is for it to also enable small batch production directly from computer designs.
Lecture 8 digital printing of textiles (condensed)Adane Nega
Digital printing of textiles allows for mass customization by printing designs directly from digital files without screens or plates. It provides benefits like quick design changes and short runs but adoption has been slow due to limitations in printing speed. Improvements are being made and digital printing is gaining acceptance for applications like sampling and short runs while conventional printing remains dominant for bulk production. In the future, further increases in printing speeds may allow digital printing to compete for more bulk production applications and even be used in a woven format like looms.
Lecture 8 digital printing of textiles (condensed)Adane Nega
Digital printing of textiles is an emerging technology that offers several advantages over traditional analog printing methods. It allows for mass customization through computer-controlled inkjet printing without the need for screens or plates. While adoption has been slow due to issues like speed and cost, digital printing is growing in niche applications like sampling and small batch production. As inkjet printer speeds increase to compete with traditional methods and as the technology matures, digital printing is poised to transform the textile printing industry.
Lecture 8 digital printing of textiles (condensed)Adane Nega
Digital printing of textiles allows for mass customization by printing designs directly from digital files without screens or plates. It provides benefits like quick design changes and short runs but adoption has been slow due to limitations in printing speed. Improvements are being made and digital printing is gaining acceptance for applications like sampling and short runs while conventional printing remains dominant for bulk production. In the future, further increases in printing speeds may allow digital printing to compete for more bulk production applications and even be used in a woven format with multiple printers.
Lecture 8 digital printing of textiles (condensed)Adane Nega
Digital printing of textiles is an emerging technology that offers several advantages over traditional analog printing methods. Digital printing uses electronic design files and inkjet printing heads rather than physical screens or rollers. It allows for mass customization, quick design changes, and reduced waste. While the technology is gaining ground in niche markets like sampling, wider adoption has been slowed by issues like printing speeds and the high costs of inks and printers needed for bulk production. Continued improvements may allow digital printing to compete with conventional rotary screen printing for medium-sized runs in the future.
This document provides information about dyeing finished garments. It discusses categories of garment dyeing, reasons for dyeing garments, selection of materials, dyes used for cotton garments, dyeing machines, processing machines, dyeing sequences for woven and knit garments, dyeing techniques, special chemicals, finishing processes, smart colorants, constraints of post-dyeing, recent developments, advantages and disadvantages of garment dyeing, comparison to fabric dyeing, problems that can occur, causes and effects of those problems, precautions to take before dyeing, and ways to avoid environmental hazards.
The document summarizes an industrial visit by students to Noman Terry Towel Mills Ltd., a leading terry towel manufacturer in Bangladesh. The summary includes information about the company's background, products, buyers, raw materials, manufacturing processes, quality control systems, and utilities. The aim of the visit was to familiarize students with the industrial environment and processes for making terry towels. [/SUMMARY]
Here are the answers to the problems:
1. Textile printing is the localized application of dyes or pigments and chemicals by any method which can produce particular effect of color on the fabric according to the design.
2. I have already stated the functions of different print paste ingredients with examples in the previous content.
3. The various stages of textile printing are: fabric preparation, design selection, print paste preparation, printing, drying, steaming, washing and soaping, and final drying.
4. Oxidizing agents assist dye fixation and color development during steaming. Alkalis help develop and fix dyes permanently on the fabric. Urea absorbs moisture from air and assists dye fixation.
The document provides information about textile processing and the associated chemicals used. It discusses the various steps in textile processing including pretreatment methods like singeing, desizing, and bleaching. It then covers dyeing processes like direct dyeing, naphthol dyes, vat dyes, and reactive dyes. Finishing and printing are also mentioned. The document lists chemicals used at different stages and provides profiles of 5 companies that manufacture textile processing auxiliaries and chemicals.
The document provides information about textile processing and the associated chemicals used. It discusses the various steps in textile processing including pretreatment methods like singeing, desizing, and bleaching. It then covers dyeing processes like direct dyeing, naphthol dyes, vat dyes, and reactive dyes. Finishing and printing are also mentioned. The document lists chemicals used at different stages and provides profiles of 5 companies that manufacture textile processing auxiliaries and chemicals.
The document discusses two types of waterless dyeing processes: air dyeing technology and DyeCoo dyeing which uses supercritical carbon dioxide. Air dyeing uses air instead of water to help dyes penetrate fibers by heating and injecting dye gas directly into fibers. It uses up to 95% less water and 86% less energy than traditional dyeing. DyeCoo dyeing involves dissolving dyes in supercritical carbon dioxide due to its low viscosity and surface tension properties, then transporting and adsorbing the dyes onto fibers through diffusion, without using water. It provides advantages like eliminating water treatment and pollution but requires high pressure and temperature during processing.
The document provides information about an industrial attachment at Meghna Knit Composite Ltd's dyeing and finishing section. It includes details about the company background, buyers, physical infrastructure, management systems, processes in batching, dyeing lab, dyeing section, finishing section, quality assurance, and conclusions. Key processes discussed are batching, dyeing, quality testing procedures for colorfastness, dimensional stability, and machines used for dyeing and finishing. Requirements from major buyers like Next, H&M, Marks & Spencer are also summarized.
This document discusses Leitat Technological Center, a research center in Spain with over a century of experience in the textile sector. It provides services like testing, certification, R&D projects, training, and manages European projects. The document outlines the center's departments and expertise in areas like textile processing, chemistry, advanced materials, biomedicine, and consumer goods. It also discusses innovative textile finishes like antimicrobial, stain resistant, and comfort enhancing finishes.
Applications of Supercritical Fluid TechnologyAbir Hasan
This presentation is based on supercritical fluid technology and its applications on various sections specially textile. Feel free to read and share with others. You may find your desired topics on my other slides.
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Geotextile and it's application on BangladeshAbir Hasan
Detailed concept on geotextile- its evolution, application, current benefits received by Bangladesh and future opportunities for making sustainable environment. Feel free to read and share with others. You may find your desired topics on my other slides.
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Concept on hardness test conducted on materialAbir Hasan
Conceptual knowledge on hardness test performed on different types of material. Feel free to read and share with others. You may also find your desired presentation topics on my other slides.
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Textile & Environmental Management SystemAbir Hasan
Comprehensive knowledge about ISO 14000 series certificate-its requirements and steps for attainment. Feel free to read and share with others. You may also find your desired presentation topics on my other slides.
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Application of computer in textile industryAbir Hasan
A detailed discussion about the application of computer in textile industries. Feel free to read and share with others. You may also find your desired presentation topics on my other slides.
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This a case study presentation is based on centralization- whether it is helping us or creating pressure in our day to day lives. Feel free to read and share with others. You may also find your desired presentation topic on my other slides.
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Different types of circular knitting machinesAbir Hasan
Its a presentation based on the most commonly used circular knitting machine - its types, difference and usage. Feel free to read and share with others. You may also find your desired presentation topic on my other slides.
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Challenges of textile industry and ways to resolveAbir Hasan
Its a detailed analysis of the current challenges of textile industry in Bangladesh and my recommendation for it. Feel free to read and share with others. You may also find your desired presentation topic on my other slides.
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Based on detailed analysis of RMG condition of Bangladesh in 2020. Feel free to read and share with others. You may also find your desired presentation topic on my other slides.
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Its an analysis presentation about generator- its types, usage, basic parts and idea of its futuristic development. Feel free to read and share with others. You may also find your desired presentation topics on my other slides.
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The document discusses plain weave, which is the most basic type of weave. It has a simple crisscross pattern formed by warping the warp and weft threads in an alternating order. Plain weave is very strong and produces fabrics that are identical on both sides. It comprises a high percentage of total woven fabric production and is used to make fashion and furnishing fabrics.
Sulphur dye and it's application on textilesAbir Hasan
Its a knowledge based presentation of famous denim dying sulphur dye. Feel free to read and shear with others. You may also find your desired presentation topics on my other slides.
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Its a detailed analysis of various types of yarn, its usage and benefits. Feel free to read and share with others. You may also find your desired presentation topic on my other slides.
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This document provides information about flame retardant and flame proof textiles. It discusses the difference between flameproof textiles, which are inherently resistant to burning, and flame retardant textiles, which are treated with chemicals to resist burning. The document outlines various flame retardant chemical treatment processes and testing methods used to evaluate flame resistance. It notes some limitations of flame retardant textiles and concludes by emphasizing the importance of flame resistance for safety.
Its a brief discussion about the liberation war museum of Bangladesh - its importance, solemnity and the sacrifice, struggle and bravery of our brave freedom fighters for whom we are proud of.
Literature Review Basics and Understanding Reference Management.pptxDr Ramhari Poudyal
Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
International Conference on NLP, Artificial Intelligence, Machine Learning an...gerogepatton
International Conference on NLP, Artificial Intelligence, Machine Learning and Applications (NLAIM 2024) offers a premier global platform for exchanging insights and findings in the theory, methodology, and applications of NLP, Artificial Intelligence, Machine Learning, and their applications. The conference seeks substantial contributions across all key domains of NLP, Artificial Intelligence, Machine Learning, and their practical applications, aiming to foster both theoretical advancements and real-world implementations. With a focus on facilitating collaboration between researchers and practitioners from academia and industry, the conference serves as a nexus for sharing the latest developments in the field.
Understanding Inductive Bias in Machine LearningSUTEJAS
This presentation explores the concept of inductive bias in machine learning. It explains how algorithms come with built-in assumptions and preferences that guide the learning process. You'll learn about the different types of inductive bias and how they can impact the performance and generalizability of machine learning models.
The presentation also covers the positive and negative aspects of inductive bias, along with strategies for mitigating potential drawbacks. We'll explore examples of how bias manifests in algorithms like neural networks and decision trees.
By understanding inductive bias, you can gain valuable insights into how machine learning models work and make informed decisions when building and deploying them.
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024Sinan KOZAK
Sinan from the Delivery Hero mobile infrastructure engineering team shares a deep dive into performance acceleration with Gradle build cache optimizations. Sinan shares their journey into solving complex build-cache problems that affect Gradle builds. By understanding the challenges and solutions found in our journey, we aim to demonstrate the possibilities for faster builds. The case study reveals how overlapping outputs and cache misconfigurations led to significant increases in build times, especially as the project scaled up with numerous modules using Paparazzi tests. The journey from diagnosing to defeating cache issues offers invaluable lessons on maintaining cache integrity without sacrificing functionality.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
Advanced control scheme of doubly fed induction generator for wind turbine us...IJECEIAES
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
2. Table of
contents
01
05
02
06 07
03 04
08
Introduction Benefits of textile
printing
Chemicals used
for textile printing
Procedures of
textile printing
Methods of
textile printing
Styles of
textile printing
Further works Conclusion
02
4. Textile printing is the process of localized
application of dyes or pigments and
chemicals by any method which can
produce particular effect of color on the
fabric according to the design.
INTRODUCTION
04
13. 06
Fixing the printed
fabric
04
Preparation of print
paste
05
Applying print paste
according to selected
method
03
Selection of
appropriate printing
method
01
Selection of
dyes/Pigments
according to fabric
02
Selection of
appropriate printing
style
Procedures of textile
printing
13
40. Conclusion
Printing industry importance is increasing
day by day. It assists in increasing products
value addition having lesser effect to the
environment. It also enabled to create a
newer fashion dimension for development
of existing one. Thus giving a helping hand
to the industry profit by increasing prices of
the products.
40