Yarn dyeing faults
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This document discusses common faults that can occur during yarn dyeing. It identifies five main yarn dyeing faults: 1) package un-level, 2) package to package shade variation, 3) color spot, 4) ring mark, and 5) dirt mark. For each fault, it provides the potential causes, such as tension variation during winding, lot mixing of yarns, improper pretreatment, and presence of dust in the air. The document was prepared by Mazadul Hasan sheshir from the Department of Wet Processing Technology at Southeast University in Bangladesh.
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Dyeing fault causes and remedies
Dyeing fault causes and remedies
Dyeing Fault:
Uneven dyeing:
Causes
•Due to improper pretreatment.
• Very rapid addition of dyes and chemicals.
• Lack of controlling dyeing parameters
Remedies
•Check addition of dyes and chemicals are at a steadily
increasing rate.
•Proper pretreatments.
•Check the rope turnover time.
•Proper washing after dyeing.
Running shade:
Causes
•Machine loading is higher.
•Running at lower nozzle pressure.
•High bath draining temperature.
Remedies
•Proper cycle time should be ensured.
•Nozzle pressure should be accurate.
•Bath draining temperature should be moderate.
Knit Dyeing Faults
This document discusses common textile defects, their causes, and remedies. It was prepared by Mazadul Hasan sheshir, a student at Southeast University in Bangladesh studying Wet Processing Technology. The document outlines several common oil, dye, and finishing defects that can occur such as oil stains, rope marks, uneven dyeing, crease marks, and pilling. For each defect, the causes are described relating to processing parameters like chemical levels, temperatures, and machine settings. Suggested remedies are also provided such as the use of emulsifiers, mercerization, ensuring even pretreatment, and adjusting machine settings.
Dyeing Faults
The document discusses common dyeing faults that occur in knit fabrics during the dyeing process. It lists 11 common knit dyeing faults including dyeing holes, running shade, dye spots, and uneven shade. For each fault, it provides the potential causes such as dye bath water hardness, defective plaiting devices, changes in pick-up percentage along the fabric length, and batch-to-batch shade variations. Remedies for each fault are also mentioned, such as restripping and re-dyeing fabrics or using softeners and spot lifters. The goal is to understand the causes of these dyeing faults and how to overcome them to improve fabric quality.
Woven fabric faults
This document lists and describes various woven fabric faults, including their causes and remedies. It discusses faults such as starting marks, loose warp, double ends, broken warp, tight ends, float of warp, wrong end colour, broken pick, miss pick, double pick, snarl or loose weft, weft bar, ball, holes, oil spot, tails out, temple mark, temple pierced hole, cut/torn selvedge, reed mark, slub, foreign material, hairy fabric, thick and thin places, high twisted yarn, and oil stained yarn. For each fault, it provides the reason for why the fault occurs and recommendations for how to remedy the problem. The document was prepared by Maz
Dyeing Faults & Remedies
This document discusses common dyeing faults in textiles, their causes, and remedies. It describes several types of dyeing faults such as uneven dyeing, crease marks, batch-to-batch shade variation, and roll-to-roll variation. For each fault, it outlines potential causes such as uneven pretreatment, improper dosing of dyes and chemicals, fluctuations in temperature, and issues with dyeing machinery. The document then provides recommendations for remedies, including ensuring even pretreatment, maintaining standard dyeing procedures, controlling dyeing machinery properly, and using consistent dyes and chemicals. It aims to help overcome dyeing faults and improve the quality of dyed fabrics.
Over dyeing on Apparel
(Over Dyeing) to dye for a second or third time with a different color. Over dyeing is such a rewarding way of rescuing an ugly or unsatisfactory colored cloth. It gives uneven look. sometimes over dyeing doesn’t mean all-time dyeing the garment which is previously dyed. Over dyeing may be normal dyeing or piece dyeing process.
Knitting Faults and Remedies
This document discusses common faults that can occur in knitted fabrics and their potential causes and remedies. It outlines 15 specific faults including needle marks, count mix, slubs, lycra out, sinker marks, yarn mix, broken needles, black oil stripes, thick and thin fabrics, pin holes, patta/barry marks, fly contamination, holes, improper setup, and star marks. For each fault, it describes possible causes such as damaged needles, improper yarn feeding, tension issues, or problems with machine parts. It then provides recommendations for remedies like replacing broken components, improving cleaning procedures, adjusting tensions, or ensuring quality of incoming yarn.
Fault of knitted fabrics
Detection of faults during production of knitted fabric is crucial for improved quality and productivity. The yarn input tension is an important parameter that can he used for this purpose. We can Problems faced in the Knitted Fabrics, due to the Dyeing & Finishing processes
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Dyeing fault causes and remedies
Dyeing fault causes and remedies
Dyeing Fault:
Uneven dyeing:
Causes
•Due to improper pretreatment.
• Very rapid addition of dyes and chemicals.
• Lack of controlling dyeing parameters
Remedies
•Check addition of dyes and chemicals are at a steadily
increasing rate.
•Proper pretreatments.
•Check the rope turnover time.
•Proper washing after dyeing.
Running shade:
Causes
•Machine loading is higher.
•Running at lower nozzle pressure.
•High bath draining temperature.
Remedies
•Proper cycle time should be ensured.
•Nozzle pressure should be accurate.
•Bath draining temperature should be moderate.
Knit Dyeing Faults
This document discusses common textile defects, their causes, and remedies. It was prepared by Mazadul Hasan sheshir, a student at Southeast University in Bangladesh studying Wet Processing Technology. The document outlines several common oil, dye, and finishing defects that can occur such as oil stains, rope marks, uneven dyeing, crease marks, and pilling. For each defect, the causes are described relating to processing parameters like chemical levels, temperatures, and machine settings. Suggested remedies are also provided such as the use of emulsifiers, mercerization, ensuring even pretreatment, and adjusting machine settings.
Dyeing Faults
The document discusses common dyeing faults that occur in knit fabrics during the dyeing process. It lists 11 common knit dyeing faults including dyeing holes, running shade, dye spots, and uneven shade. For each fault, it provides the potential causes such as dye bath water hardness, defective plaiting devices, changes in pick-up percentage along the fabric length, and batch-to-batch shade variations. Remedies for each fault are also mentioned, such as restripping and re-dyeing fabrics or using softeners and spot lifters. The goal is to understand the causes of these dyeing faults and how to overcome them to improve fabric quality.
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This document lists and describes various woven fabric faults, including their causes and remedies. It discusses faults such as starting marks, loose warp, double ends, broken warp, tight ends, float of warp, wrong end colour, broken pick, miss pick, double pick, snarl or loose weft, weft bar, ball, holes, oil spot, tails out, temple mark, temple pierced hole, cut/torn selvedge, reed mark, slub, foreign material, hairy fabric, thick and thin places, high twisted yarn, and oil stained yarn. For each fault, it provides the reason for why the fault occurs and recommendations for how to remedy the problem. The document was prepared by Maz
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This document discusses common dyeing faults in textiles, their causes, and remedies. It describes several types of dyeing faults such as uneven dyeing, crease marks, batch-to-batch shade variation, and roll-to-roll variation. For each fault, it outlines potential causes such as uneven pretreatment, improper dosing of dyes and chemicals, fluctuations in temperature, and issues with dyeing machinery. The document then provides recommendations for remedies, including ensuring even pretreatment, maintaining standard dyeing procedures, controlling dyeing machinery properly, and using consistent dyes and chemicals. It aims to help overcome dyeing faults and improve the quality of dyed fabrics.
Over dyeing on Apparel
(Over Dyeing) to dye for a second or third time with a different color. Over dyeing is such a rewarding way of rescuing an ugly or unsatisfactory colored cloth. It gives uneven look. sometimes over dyeing doesn’t mean all-time dyeing the garment which is previously dyed. Over dyeing may be normal dyeing or piece dyeing process.
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This document discusses common faults that can occur in knitted fabrics and their potential causes and remedies. It outlines 15 specific faults including needle marks, count mix, slubs, lycra out, sinker marks, yarn mix, broken needles, black oil stripes, thick and thin fabrics, pin holes, patta/barry marks, fly contamination, holes, improper setup, and star marks. For each fault, it describes possible causes such as damaged needles, improper yarn feeding, tension issues, or problems with machine parts. It then provides recommendations for remedies like replacing broken components, improving cleaning procedures, adjusting tensions, or ensuring quality of incoming yarn.
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This document provides details about various woven dyeing processes. It begins with an introduction to dyeing technology and lists the main types of fabrics - woven, knitted, and non-woven. It then outlines the typical steps in woven fabric dyeing, from inspection to packing. Several dyeing methods are described, including direct dyeing and yarn dyeing. Key dyeing machines like jet, overflow, airflow and jigger dyeing machines are explained. Limitations of jigger dyeing are also noted.
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This document discusses root causes of faults in knitted fabrics and their remedies. It begins by introducing the aims of analyzing fabric faults. It then covers causes and remedies for faults originating from yarns, such as barriness, spirality, shrinkage, and thick/thin places. Knitting-related faults like cracks, pin holes, contamination, and broken needles are also examined. Finally, dyeing and finishing faults such as shade variation, pin holes, creases, spots, and dust are analyzed. The conclusion restates that identifying fault sources allows knitters to take steps to prevent defects and improve quality and productivity.
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This document discusses various types of defects that can occur in knitted fabrics, including yarn-related defects, knitting element defects, machine setting defects, dyeing defects, and finishing defects. Specific defects are defined such as drop stitches, barriness, imperfections, and spirality. The causes and remedies are provided for each defect. In conclusion, detecting faults during knitted fabric production is important for quality and productivity, and identifying the source and solutions for defects can help knitters overcome faults.
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The term finishing, in a broad sense it covers all the processes of making the fabric good looking, good hand feeling, luster and of course for buyer requirement. It is done after dying and before delivery to market. Various types of parameters are controlled during finishing section considering buyer requirement. The term also includes bleaching, dyeing, mercerizing etc. But normally the term is restricted to the final stage in the sequence of treatment of Knit fabrics after bleaching and dyeing. However, fabrics which are neither bleached nor dyed are also finished.
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This document summarizes common faults that can occur during textile manufacturing processes and their potential causes and remedies. It discusses knitting, dyeing, finishing, printing, cutting, sewing, and garment faults. Examples of specific faults mentioned include holes, loops, lycra out, uneven dyeing, crease marks, squeezer marks, unfused edges, miss prints, weak stitches, seam puckering, and stains. Potential causes provided for each fault and recommended remedies such as properly cleaning machines, ensuring even dyeing conditions, using standard procedures, and removing contamination. The conclusion emphasizes the importance of care during processing and prevention to minimize faults.
reactive Dyeing of cotton knitted fabrics
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.
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This document discusses common defects that can occur during dyeing, printing, and finishing of fabrics, as well as their potential causes. It provides examples of dyeing defects such as bleeding, crocking, shade bars, holes, off shades, and uneven dyeing that may result from issues with the material, water quality, or dye solution. Printing defects like flushing, bleeding, misfits, banding, unwanted pigment marks, and cracks can arise from problems with the print paste or screen. Finishing defects like unwanted marks, decolorized patches, pin holes, pucker, bowing, pilling, water spots, torn selvages, cuts, and soil are also explained. The document emphasizes understanding the
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Winch machine
1. The winch dyeing machine dyes fabric pieces that are sewn end to end into a rope-like form.
2. The fabric rope is circulated in the dyeing machine by a horizontal rotor called a winch, which gives the machine its name.
3. The winch dyeing machine is commonly used to dye knitted, woolen, and worsted fabrics due to its ability to apply low tension on the fabric.
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This document provides information about various finishing machines used after fabric production. It describes the slitting machine, which opens tubular fabric into open width. It also describes the squeezing machine, which extracts water from dyed fabric. Finally, it outlines the stenter machine, dryer machine, and hot air circulation systems, which apply heat to dry fabrics and set chemicals. The main purpose of these machines is to finish fabrics by opening, squeezing, drying, and setting them for further processing or end use.
Project Report on Study on the Effects of Sanforizing Machine on the Properti...
A thesis submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Textile Engineering
Advance in Wet Processing Technology
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Production = no. of needle x no of feeder x RPM x stitch length/ yarn count
Production per shift in KG at 100% efficiency
Knit dyeing faults & Remedies
This document discusses common dyeing faults that occur in knit fabrics and their potential causes and remedies. It begins by explaining why dyeing faults can occur due to factors like uneven pretreatment, improper dosing of dyes and chemicals, and fluctuations in temperature. Several specific dyeing faults are then described such as uneven dyeing, batch-to-batch shade variations, patchy effects, and crease marks. Each fault lists possible causes and recommended remedies to prevent reoccurrence. The document concludes by noting the importance of identifying fabric and garment defects for the garment industry.
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The document discusses yarn dyeing machines that are suitable for dyeing various narrow fabrics like silk yarn, nylon yarn, polyester yarn, and acrylic yarn. It mentions that horizontal package yarn dyeing machines require only 3 meters of ceiling height and can function independently with just a press of a button. It also provides details about the features, benefits, and specifications of different yarn dyeing machines.
Yarn dyeing machine
This document provides information about an automatic yarn dyeing plant. It includes diagrams of the soft winding, batching, dosing, dyeing, drying, and hard winding sections of the plant. It also lists maintenance tasks for dyeing machines, such as checking pump oil levels, bearings, seals, flanges, and the control panel. Finally, it provides links to related Facebook pages and the author's textile technology blog.
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Yarn unevenness and its empact on quality
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This document discusses various types of defects that can occur in knitted fabrics, including yarn-related defects, knitting element defects, machine setting defects, dyeing defects, and finishing defects. Specific defects are defined such as drop stitches, barriness, imperfections, and spirality. The causes and remedies are provided for each defect. In conclusion, detecting faults during knitted fabric production is important for quality and productivity, and identifying the source and solutions for defects can help knitters overcome faults.
Parameters of finishing machine
The term finishing, in a broad sense it covers all the processes of making the fabric good looking, good hand feeling, luster and of course for buyer requirement. It is done after dying and before delivery to market. Various types of parameters are controlled during finishing section considering buyer requirement. The term also includes bleaching, dyeing, mercerizing etc. But normally the term is restricted to the final stage in the sequence of treatment of Knit fabrics after bleaching and dyeing. However, fabrics which are neither bleached nor dyed are also finished.
Fabric & Garments Fault with its remedies
This document summarizes common faults that can occur during textile manufacturing processes and their potential causes and remedies. It discusses knitting, dyeing, finishing, printing, cutting, sewing, and garment faults. Examples of specific faults mentioned include holes, loops, lycra out, uneven dyeing, crease marks, squeezer marks, unfused edges, miss prints, weak stitches, seam puckering, and stains. Potential causes provided for each fault and recommended remedies such as properly cleaning machines, ensuring even dyeing conditions, using standard procedures, and removing contamination. The conclusion emphasizes the importance of care during processing and prevention to minimize faults.
reactive Dyeing of cotton knitted fabrics
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.
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Padder
The document discusses a squeezer machine used in textile wet processing to extract water from fabrics after dyeing. It describes the machine's components and functions, which include removing water, controlling fabric width, length, spirality, and applying softening chemicals. It provides specifications of a particular machine, operating parameters for different fabric types, and discusses best practices and potential limitations.
Stenter machine & heat set
This document provides information about operating and setting heat parameters for a stenter machine at MAA Garment & Textiles Factory in Ethiopia. It discusses the objective of using a stenter machine to control fabric dimensions, apply heat setting and finishing chemicals. It then lists functions of the stenter machine like heat setting, width control, and moisture control. Details are given about a specific stenter machine brand and its specifications. The document concludes with standard heat setting parameters for different buyers and fabric types.
Garment washing
The document discusses different methods of finishing garments, including stone washing. Stone washing involves tumbling freshly dyed jeans with pumice stones to produce a pre-washed and faded look through abrasion. The degree of fading depends on factors like the garment to stone ratio, washing time, stone size and hardness. Stone washing can damage machinery and pollute water. It also risks uneven fading and back staining if dye is redeposited on fabrics.
Mercerization
Mercerization is a chemical treatment that improves several qualities of cotton fibers and fabrics. It involves treating cotton with a concentrated sodium hydroxide (NaOH) solution under tension. This causes the cotton fibers to swell and straighten, changing their crystalline structure from cellulose I to cellulose II. As a result, mercerized cotton has increased luster, dye affinity, strength and absorbency. The process was discovered in the 1840s but was commercialized in the 1890s when it was found that applying tension during NaOH treatment dramatically increased the cotton's luster. Today, mercerization is commonly used in the production of sewing thread, denim, and other cotton fabrics to enhance their appearance and properties.
Winch machine
1. The winch dyeing machine dyes fabric pieces that are sewn end to end into a rope-like form.
2. The fabric rope is circulated in the dyeing machine by a horizontal rotor called a winch, which gives the machine its name.
3. The winch dyeing machine is commonly used to dye knitted, woolen, and worsted fabrics due to its ability to apply low tension on the fabric.
Finihing machine
This document provides information about various finishing machines used after fabric production. It describes the slitting machine, which opens tubular fabric into open width. It also describes the squeezing machine, which extracts water from dyed fabric. Finally, it outlines the stenter machine, dryer machine, and hot air circulation systems, which apply heat to dry fabrics and set chemicals. The main purpose of these machines is to finish fabrics by opening, squeezing, drying, and setting them for further processing or end use.
Project Report on Study on the Effects of Sanforizing Machine on the Properti...
A thesis submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Textile Engineering
Advance in Wet Processing Technology
Textile Calculations and Equations
Production = no. of needle x no of feeder x RPM x stitch length/ yarn count
Production per shift in KG at 100% efficiency
Knit dyeing faults & Remedies
This document discusses common dyeing faults that occur in knit fabrics and their potential causes and remedies. It begins by explaining why dyeing faults can occur due to factors like uneven pretreatment, improper dosing of dyes and chemicals, and fluctuations in temperature. Several specific dyeing faults are then described such as uneven dyeing, batch-to-batch shade variations, patchy effects, and crease marks. Each fault lists possible causes and recommended remedies to prevent reoccurrence. The document concludes by noting the importance of identifying fabric and garment defects for the garment industry.
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Garment dyeing with pigments provides a wash-down effect that is not possible with other dye types like reactives or sulphur dyes. Pigment dyeing uses cationic polymers and reactants to attach pigment particles to fiber surfaces in a multi-layered structure for robust, level dyeing with good fastness properties. It is an economical process using less water, energy and chemicals than other dyeing methods. Common issues in pigment dyeing like unevenness can be addressed by ensuring proper pretreatment, liquor ratios, and pigment dispersion properties.
Maintenance of dyeing machine
The document discusses maintenance of textile machinery. It defines different types of maintenance including reactive, preventive, predictive, and capital replacement. It then provides details on maintenance needs and procedures for specific textile processes like singeing, desizing, scouring, bleaching, dyeing, and finishing. Checklists are also included for yearly, half-yearly, and monthly maintenance of machinery. The goal of maintenance is to keep equipment functioning properly to maximize productivity and minimize downtime.
What is real merchandising
The document discusses various aspects of costing and merchandising for garment production. It provides formulas to calculate fabric consumption, sewing thread consumption, carton costs, and fabric costs. It also lists important terms in costing like yarn cost, process cost, and profit percentage. Steps in costing include calculating costs of fabric, accessories, production, transportation, and overhead. The target FOB price is determined by adding total costs and percentages for commercial costs and profit margin. Quality control, sizing specifications, and purchase order details need to be confirmed before starting costing.
Knit garments marchandising
The document discusses the process of merchandising knit garments. It begins with an introduction to the garment industry in Bangladesh, which is one of the largest exporters of garments globally. It then outlines the key roles and responsibilities of a merchandiser, which include negotiating with buyers, costing, sample making, production monitoring, inspection and documentation for export. The document provides examples of costing calculations for common knit garments like T-shirts, polo shirts and trousers to determine fabric consumption and costing per dozen units. It aims to provide practical knowledge about merchandising that will help strengthen Bangladesh's textile and garment sector.
Production and Faults in Cutting, Sewing & Finishing in a Knit Garment Industry
This document provides an overview of the cutting and sewing processes in a garment factory. It discusses the key steps in cutting including fabric receiving, spreading, marker making, cutting, numbering, bundling, and quality checks. Important factors that influence marker efficiency are also outlined. The document then describes the sewing section, including common machines, quality checking points, and the flow from input to output. Key activities on plain, flatlock, and overlock machines are identified.
Study on garments dyeing
Garment dyeing involves dyeing fully fashioned apparel articles after they have been cut and sewn. It allows for mass production of identical garments in particular colors at low cost. It also provides flexibility to supply a wide range of colors based on market demand while reducing inventory and discounted sales. There are four main categories of garment dyeing: fully fashioned garment dyeing, cut and sewn garments of woven and knitted fabrics, 100% cotton goods, and denim goods involving washing, desizing and effects like stone washing. Advantages include flexibility, quick response, flexibility in dye shades and finishes, lower rejections and capital requirements. Disadvantages are higher labor needs, higher rejection rates,
Production Process of fully fashioned knitwear manufacturing.
Fully fashioning is a method of shaping knitted structure by increasing or decreasing the number of Wales or needles. Fully fashioned knitwear is manufactured through knitting the whole structure.
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Production and Faults in Cutting, Sewing & Finishing in a Knit Garment Industry
Production and Faults in Cutting, Sewing & Finishing in a Knit Garment Industry
Production Process of fully fashioned knitwear manufacturing.
Production Process of fully fashioned knitwear manufacturing.
More from Md. Mazadul Hasan Shishir
A note of textile terms and definitions
This document provides definitions and background information on various textile terms. It begins with an introduction to textiles and defines key terms like fiber, filament, yarn and fabric. It then discusses the history of natural fibers like cotton, wool and silk. The document also summarizes the development of various man-made fibers like rayon, nylon, acrylic and polyester. It provides timelines of when these fibers were first invented and commercialized. The document is intended to serve as a reference for textile engineering students.
Handbook of garments manufacturing technology
This document provides information about garment manufacturing and exporting processes. It was prepared by Md. Kamrul Hasan, a Textile Engineering graduate from Southeast University in Bangladesh. The document contains several sections that discuss key topics like buyers and buying houses, major garment exporting countries, GSP status, garment export procedures, costing, purchase orders, letters of credit, and timelines. It aims to serve as a reference for students and professionals in the garments sector.
carbon fibre
This document provides information about carbon fiber, including:
1. What carbon fiber is composed of and its structure.
2. The process of forming carbon fiber from precursor materials like polyacrylonitrile through heating without oxygen.
3. Applications of carbon fiber in composites for aircraft, vehicles, and other products due to its strength and light weight.
4. Major manufacturers of carbon fibers and the growing market for carbon fiber composites.
Acrylic fiber
The document discusses acrylic fiber, including its definition, chemical composition, properties, characteristics, advantages, uses, and commercial applications. Acrylic fiber is a synthetic fiber made from polymers containing acrylonitrile. It is often used as an artificial replacement for wool in applications like sweaters, socks, and blankets due to its softness and insulating properties. Major uses of acrylic fiber include knit apparel, carpets, and home furnishings due to its ability to wick moisture, durability, and resistance to moths and chemicals.
Elastomeric Fiber
Elastomeric fibers are fibers that can stretch to very high elongations (400-800%) and rapidly recover their original length. They include fibers made from natural and synthetic rubbers as well as spandex and polyacrylates. Elastomeric fibers are produced via a spinning process where polymers are mixed and reacted to form long chains, then extruded through spinnerets into a water bath or air to solidify. The fibers have excellent elasticity and strength even at high elongations. Common applications include clothing, automotive and industrial parts, coatings and more where elasticity is required.
project on Application of Disperse & Reactive Dyes In a P/C Blended Fabric of...
project on Application of Disperse & Reactive Dyes In a P/C Blended Fabric of...Md. Mazadul Hasan Shishir
project on Application of Disperse & Reactive Dyes In a P/C Blended Fabric of 65/35 In Using Two Bath SystemPresentation of sayeed
This document provides a project report on applying disperse and reactive dyes to a 65/35 polyester/cotton blended fabric using a two bath system. It acknowledges those who helped with the project and thanks the textile college and company for the opportunity. The abstract discusses challenges in dyeing poly/cotton blends and how dye selection can help control color value, strength, and other properties. Laboratory trials tested compatibility of reactive dyes and analyzed dye fixation using spectrophotometry. The introduction discusses the importance of practical experience and outlines the project goals of studying dye application in different textile industries in Bangladesh.
PROJECT : REACTION MECHANISM OF REACTIVE DYES IN ON CELLULOSE FIBER.
This document provides a project report on the reaction mechanism of reactive dyes in Bengal Hurricane Group on cellulose fiber. It discusses the raw materials used, including fabrics, dyes, and chemicals. It explains the importance of studying reactive dye usage in major Bangladeshi textile industries. The methods of dyeing and printing cotton with reactive dyes and the technical deficiencies, causes, and remedies are examined.
INTERSTOFF APPARELS LTD
This document provides information about Interstoff Apparels Ltd., a garment manufacturing company in Bangladesh. It discusses the company profile, including its name, business type, employees, and address. It also describes the knitting, quality control, dyeing, and project work sections of the company. The knitting section details the types of yarns, knitting machines, production calculations, and common knitting faults. The quality control section lists inspection equipment. The dyeing section outlines the dyeing process and possible faults. The project work section explains common knitting defects and their causes and remedies.
INDUSTRIAL ATTACHMENT OF GTA SPORTS LTD
The document provides information about GTA Sports Ltd., a knitwear factory in Bangladesh. It includes an organogram of the company's management structure and sections. The knitting section is described in detail, outlining the knitting process, types of knitting machines and their parts. It also discusses methods to increase production quantity. The dyeing and finishing sections are briefly introduced, including raw materials, machinery and quality control processes.
Apex weaving & finishing mills limited
This document provides an overview of Apex Weaving & Finishing Mills Limited, a textile company located in Gazipur, Bangladesh. It describes the company's various subsidiaries and business sections, which include weaving, dyeing, printing, finishing, and garments. The document also lists the types of machinery used in each section of the facility, such as 231 shuttleless looms, rotary printers, loop steamers, and sewing machines. Finally, it includes photos of the different areas of the plant, including the weaving floor, wet processing section, printing area, laboratories, and maintenance facilities.
Industrial Attachment of GTA Sports Ltd.
The document provides information about GTA Sports Ltd., a knitwear factory in Bangladesh. It includes an organogram of the company's management structure and sections. The knitting section is described in detail, outlining the knitting process, types of knitting machines and their parts. It also discusses increasing production quantity and common knitting faults. The dyeing and finishing sections are briefly introduced, including raw materials, machinery and quality control processes.
Reactive Dye
The document provides information about reactive dyes, including:
- Reactive dyes form covalent bonds with fiber polymers through reactive groups, giving excellent wash and light fastness.
- Important reactive groups include triazine, vinyl sulfone, and halogen groups.
- Reactive dyes were invented in 1956 and became popular for their bright colors, low temperature dyeing, and simple process.
- Common application methods are pad-batch and pad-dry processes at low temperatures. Proper pH, electrolyte, alkali, and time are required for effective dye fixation to the fiber.
Weaving
This document discusses the development of looms from primitive hand looms to modern automated looms. It outlines the key stages of development including the fly shuttle loom, power looms, semi-automatic looms, and modern shuttle-less looms. The basic mechanisms and motions of weaving are described, including primary, secondary, and tertiary motions. Different parts of a loom and their functions are also summarized.
Industrial attachment of urmi garments ltd
This document provides information about Urmi Group and one of its concerns, Fakhruddin Textile Mills Ltd. It details the company profile, factory information, manpower and organizational structure, raw materials used, and production process of the textile mill. Fakhruddin Textile Mills Ltd is a leading Bangladeshi manufacturer and exporter of knit garments established in 2004. It has over 1200 employees and uses various natural and synthetic yarns, chemicals, and dyes to produce knitted fabrics and garments for the export market.
Industrial attachment of Sadma fashion wear ltd
This document provides an overview of Sadma Fashion Wear Ltd., a garment manufacturing company in Bangladesh. It details the company's profile, facilities, production capacity, certifications, buyers, and organizational structure. Key points include that it has over 200 employees, a production capacity of 20,000 pieces per day, and major buyers such as Walmart, C&A, and Sears. The company operates departments for knitting, dyeing, finishing, garments production and quality assurance.
Industrial attachment of mitali fasions ltd
This document provides an overview of Mitali Fashions Ltd., a knit composite garment factory in Bangladesh. It discusses the company's establishment in 2000, leadership, expansion, and certification. The factory has various production sections including knitting, dyeing, finishing, garments, and quality control. It employs over 5,000 people and produces knitwear and garments for major international brands. The document also includes organizational charts, maps of the factory premises, and lists of raw materials and major customers.
Industrial attachment of Olio apparels ltd (envoy group)
The document provides information about an industrial training internship at Olio Apparels Ltd, which is part of the Envoy Group. The objectives of the internship are to learn about the different departments of the company and gain practical knowledge about garment manufacturing. It also aims to compare theoretical knowledge learned in class to real-world practices and identify strengths, weaknesses, opportunities, and threats of the company. Olio Apparels Ltd is described as a large garment manufacturing facility that produces high quality products for European and American customers using modern machinery and technologies.
Industrial attachment of divine group of industries limited (dgi).
1. The document provides information about Divine Group of Industries Limited (DGI), a textile company in Bangladesh. It details DGI's facilities, production capacity, certifications, and clientele.
2. DGI aims to suit every fashion taste and demand from around the world. It has several factories producing knitted fabrics and garments.
3. The document outlines DGI's management structure, production processes from knitting to garments, and machinery used in key departments like CAD and sampling.
Apparel Merchandising
This document provides information about garment merchandising and industrial engineering. It defines merchandising and outlines the key steps in the merchandising process from developing buyers to shipment. It also describes the work of merchandisers, including sourcing, pricing, order follow up, and ensuring on-time shipment. Additionally, it discusses industrial engineering and its focus on improving productivity through methods like time studies, layout optimization, and training. It provides details on cost analysis, production planning, and the different techniques used to set work standards.
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PROJECT : REACTION MECHANISM OF REACTIVE DYES IN ON CELLULOSE FIBER.
Industrial attachment of Olio apparels ltd (envoy group)
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Industrial attachment of divine group of industries limited (dgi).
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Yarn dyeing faults
- 2. Prepared By : Mazadul Hasan sheshir ID: 2010000400008 13th Batch (session 2009-2013) Department : Wet Processing Technology Email: mazadulhasan@yahoo.com Blog : www. Textilelab.blogspot.com (visit) Southeast University Department Of Textile Engineering I/A 251,252 Tejgaon Dhaka Bangladesh Prepared By :
- 3. Faults in Dyeing SectorFaults in Dyeing Sector
- 4. Yarn Dyeing Faults 1. Package un-level 2. Package to package shade variation 3. Color spot 4. Ring mark 5. Dirt mark Yarn Dyein g Fault
- 5. 1. Package Unlevel Causes: a. Tension variation while soft winding of the package b. Lot mixing of yarns in the same package c. Different counts of yarns in the same package d. Pressure variation in the machine vessel e. Improper pretreatment of the yarn f. Improper quality of the dyes and chemicals g. Improper acid treatment after scouring and bleaching
- 6. 2. Package to Package shade variation Causes: a. Improper setting of yarn packages in the machine b. Lot mixing of the packages c. Count variation of packages Causes: a. Improper setting of yarn packages in the machine b. Lot mixing of the packages c. Count variation of packages Packag e Unlevel
- 7. 3. Color Spot Causes: a. Floating of dye particles in the air b. Improper per-oxide killing c. Hardness of water d. Improper mixing of dyestuffs Packag e Unlevel P 2 P shade variatio n
- 8. 5. Ring Mark Causes: a. Improper drying of the packages b. Improper peroxide killing 4. Dirt Mark Causes: a. Dirty handling of the packages b. Presence of dust in the air Figure: Dirt mark Packag e Unlevel P 2 P shade variatio n Colo r Spot
- 10. 1. Yarn Manufacturing Technology Link : http://www.facebook.com/pages/Yarn-Manufacturing-Technology/485014954866808 2. Fabric Manufacturing Technology Link : http://www.facebook.com/pages/Fabric-Manufacturing-Technology/459520217425605 3. Garments Manufacturing Technology Link : http://www.facebook.com/pages/Garments-Manufacturing-Technology/472364799463126 3. Wet processing Technology Link : http://www.facebook.com/pages/Wet-Processing-Technology-Dyeing-/468645219825404 4. Fashion-Design-and-Technology Link : http://www.facebook.com/pages/Fashion-Design-and-Technology/587655294583875?ref=ts&fref=ts My Facebook Textile related Pages http://www.textilelab.blogspot.com (Visit )