The document discusses various finishing processes for denim fabrics. It introduces denim fabric and explains that finishing is done to enhance the look, provide aesthetic and performance benefits, and add to the durability and comfort of denim. Some major finishing processes discussed include singeing to burn off fluff, overdyeing, calendaring to produce textures, mercerizing to increase luster and strength, softening to regain soft feel, and resin applications to fill fibers.
(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.
(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.
This procedure is sometimes referred to as “Burn Out”. A cotton / polyester blended fabric can be printed with a print paste containing the burn out chemicals, and after fixation, the cotton portion is destroyed and only the polyester remains. Burn-out textiles is a technique used to develop raised designs on fabric surface. This is primarily being done in fabrics with at least 2 different fibre content i.e. Cotton-Polyester, Silk-Rayon etc.
Washing is the process & technology which is used to modify the appearance, outlook comfort ability and fashion of the garments is called garment washing.
A wrinkle, also known as a rhytide, is a fold, ridge or crease in the cloth or garments. Wrinkle is a particular type of pressure in the finished fabric. It is produced during finishing operations by the thickness of the seam used to join pieces for processing.Resin & its use in Denim garments industry to create unique & vintage looks which add value to denim garments & improves it sale ability in market. In 80’s we have seen Resin being used to give non press , iron free trousers & now we are using in Denims to make wrinkles & creases to look natural vintage which stays after multiple home laundries.
Denim is a sturdy cotton warp-faced textile in which the weft passes under two or more warp threads. This twill weaving produces a diagonal ribbing that distinguishes it from cotton duck.
Denim is available in a range of colors, but the most common denim is indigo denim in which the warp thread is dyed while the weft thread is left white. As a result of the warp-faced twill weaving, one side of the textile is dominated by the blue warp threads and the other side is dominated by the white weft threads. Jeans fabricated from this cloth are thus predominantly white on the inside.
Bahauddin Zakariya University College of Textile Engineering.
Wrinkle resistance varies from quite low in many fabrics to very high in resilient fabrics. In order to form a wrinkle, a fabric’s wrinkle resistance must be overcome. The fabric may, however, produce strains and store potential energy that can become evident as wrinkle recovery under suitable conditions.Resin & its use in Denim garments industry to create unique & vintage looks which add value to denim garments & improves it sale ability in market. In 80’s we have seen Resin being used to give non press , iron free trousers & now we are using in Denims to make wrinkles & creases to look natural vintage which stays after multiple home laundries.
This procedure is sometimes referred to as “Burn Out”. A cotton / polyester blended fabric can be printed with a print paste containing the burn out chemicals, and after fixation, the cotton portion is destroyed and only the polyester remains. Burn-out textiles is a technique used to develop raised designs on fabric surface. This is primarily being done in fabrics with at least 2 different fibre content i.e. Cotton-Polyester, Silk-Rayon etc.
Washing is the process & technology which is used to modify the appearance, outlook comfort ability and fashion of the garments is called garment washing.
A wrinkle, also known as a rhytide, is a fold, ridge or crease in the cloth or garments. Wrinkle is a particular type of pressure in the finished fabric. It is produced during finishing operations by the thickness of the seam used to join pieces for processing.Resin & its use in Denim garments industry to create unique & vintage looks which add value to denim garments & improves it sale ability in market. In 80’s we have seen Resin being used to give non press , iron free trousers & now we are using in Denims to make wrinkles & creases to look natural vintage which stays after multiple home laundries.
Denim is a sturdy cotton warp-faced textile in which the weft passes under two or more warp threads. This twill weaving produces a diagonal ribbing that distinguishes it from cotton duck.
Denim is available in a range of colors, but the most common denim is indigo denim in which the warp thread is dyed while the weft thread is left white. As a result of the warp-faced twill weaving, one side of the textile is dominated by the blue warp threads and the other side is dominated by the white weft threads. Jeans fabricated from this cloth are thus predominantly white on the inside.
Bahauddin Zakariya University College of Textile Engineering.
Wrinkle resistance varies from quite low in many fabrics to very high in resilient fabrics. In order to form a wrinkle, a fabric’s wrinkle resistance must be overcome. The fabric may, however, produce strains and store potential energy that can become evident as wrinkle recovery under suitable conditions.Resin & its use in Denim garments industry to create unique & vintage looks which add value to denim garments & improves it sale ability in market. In 80’s we have seen Resin being used to give non press , iron free trousers & now we are using in Denims to make wrinkles & creases to look natural vintage which stays after multiple home laundries.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
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Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
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4. Introduction of Denim Finishing
Generally denim fabric is a 100% cotton woven fabric and
exceptionally solid and strong. Denim fabric is courser than as
usual woven fabric. Normally courser yarn is used for making
denim fabric. The look and nature of the denim fabric should
be enhance subsequent to coloring. Generally blue denim is
twist-confronted cotton fabric with 3 × 1 twill development with
the twist colored in a strong shading and the weft left
uncolored. Denim fabric is widely accepted fabric for its
appearance and durability. In this article we will discuss about
different finishing process of denim fabric.
5. Provide aesthetic value
Soften fabric or change the hand
Adds to durability
Adds to comfort
Provide safety
Improves performance
Why Finishing of Denim
7. Singeing:
Singeing is a process that uses a gas flame to burn
off the fluff or tiny hairs on the surface of denim
fabric. This process burns away surface material that
makes the fabric look fuzzy. It is carried out to obtain
a cleaner and smoother appearance of denim
fabrics. This process enhances the color, and the
fabric wettability is also increased.
8. Overdyeing:
Traditional indigo dyed denim fabric can be overdyed
as part of a finishing process. Overdyeing can take
place between desizing and the addition of softeners.
The best results, however, are achieved after stone
washing and subsequent bleaching. The preparation
requirements for overdyeing are the same as for any
other dyeing process.
9. Calendering:
Calendering is a processes in which denim fabric is
passed between rollers or calenders, usually under
controlled heat and pressure, to produce a variety of
surface textures or effects in fabric such as
compactness, smoothness, glazing, etc. The process
involves passing the denim through a calender in which
a highly polished, usually heated, steel bowl rotates at a
higher speed than the softer bowl against which it
works, thus producing a glaze on the face of the fabric
that is in contact with the steel bowl.
10. Mercerising:
Mercerisation is an industrial process involving sodium
hydroxide for cotton yarns or fabrics to increase the lustre and
dyeability. But the mercerisation of denim is usually carried out
after the denim is woven, and so it is different from the more
common method of mercerising cotton yarn. Mercerisation of
denim may be used for achieving ring dyeing thus keeping the
dye on the surface of the yarns or fabrics and to prevent dyes
from fully penetrating the fibres. In addition to increasing the
fabric lustre, it also improves its strength. As it significantly
increases the cost and lead times of denim production, at
present, it is a relatively rare process.
11. Softening:
Due to the removal of impurities such as wax, paraffin and oil
after pretreatment processes, denim fabric loses its natural
hand feel and therefore it is necessary to regain its softness.
Softeners improve abrasion resistance, increase tearing
strength and diminish the risk of stitching thread and needle
breakage during garment sewing. A wide range of softeners is
used in the aftertreatment of denim fabrics. The major softener
types are cationic, anionic, nonionic, silicones and special
softeners.
12. Resin applications:
Resin is a chemical solution that fills into the
amorphous area of a fibre, penetrates thorougly by
drying and curing and polymerises inside the fibres.
The resin amount, fixation temperature, pH and
process time are the critical parameters of a proper
resin application on denim fabric. A post curing can
activate the resin after garment production.