Recent development in textile processing

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Offline nawshin farzana

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Recent development in textile processing
« on: November 15, 2018, 04:33:43 PM »
The world is realizing a very fast change not only in electronic and heavy engineering but also in textile where the textile world not only accepting the challenges being involved for environment & health but also a continuous endeavor to impart comfort and performance which is leading to number of development in textile materials and modernization of processes .

Development in Processing

Plasma Technology - Plasma, very reactive ions, which modify chemical structure and surface properties of textile material. Despite this being costly technology initially, it offers greater production rate, less production cost, better products and most importantly, finishes on fabrics that are either difficult to obtain by other technology or not obtained at all.

Waterless dyeing using supercritical carbon di oxied-In this process dye dissolution to diffusion in to fiber is done with liquid CO It is a completely waterless dyeing process using recycled carbon dioxide in certain temperature and very high pressure. Small scale production has been established but commercialization is still a challenge.

Ultrasonic Assisted Textile Processing- Ultrasound is a cyclic sound pressure which creates vibrational energy in dyes molecules and substrate and increase reaction efficiency and exhaustion. This technique offers less thermal energy requirement, less effluent load, processing through less amount of dyes and auxiliaries and requires smaller size of plant.

Electrochemical dyeing with vat dyes-In this technique the reduction of vat dye molecules is done using electric current. In application of vat dyes, the replacement of non-regenerable reducing agents such as sodium hydro sulphite by cathodically regenerable reducing agents is much better because it offers great ecological advantage.

 Application of ozone in textile industry-Ozone has bleaching property and eliminates tiniting from denim, sewing threads and gives fresh look.  Inspite from its various properties like killing all air borne micro-organisms including bacteria, virus, mold, fungi, spores, etc,  furthermore, the discharge of the Ozone purifies the atmosphere by adding freshness and giving clear, pollution free-oxygen rich air.

Application of nano technology in textiles-Nano finishes has size in the range of 1 to 100 nm, act as catalysts that help break down carbon-based molecules, and require only sunlight to trigger the reaction & being developed for textile substrates are at their infantile stage. However, the new concepts exploited for the development of nano finishes have opened up exciting opportunities for further R&D.

Use of enzyme in textile processing for green technology-Advances in enzymology, molecular biology and screening techniques provide possibilities for the development of new enzyme-based processes for a more environmentally friendly approach in the textile industry. Unfortunately most of enzymes are not certified from various environmental & safety communities only because these are genetically modified otherwise these are non polluting processes.

Fabric from recycled polyester-Polyester textile recycling has been developed using the clear plastic water bottles, or PET as the raw material, a source of plastic that would otherwise go into landfill.

Special finish developments-The consumer safety, resource saving and environment protection contribute to safer textiles and a better future are commitment of Vardhman group, and producing such products in production of special class of finishes, some of which are formaldehyde free resin finished fabric, fluorine free oil & water repellent fabric, cool comfort fabric, anti UV fabric etc.

Offline kamrulislam.te

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Re: Recent development in textile processing
« Reply #1 on: March 11, 2020, 10:36:39 PM »
Informative post🙂
Md. Kamrul Islam
Lecturer, Department of Textile Engineering
Faculty of Engineering, DIU
Cell : +8801681659071
Email: kamrulislam.te@diu.edu.bd
https://sites.google.com/diu.edu.bd/md-kamrul-islam/