The textile industry (cotton printing and dyeing) clean production standards being as reference and green production full control in whole process as the guiding ideology, the green evaluation indexes are formed and have better feasible manipulation.
Ready to wear apparel or garment manufacturing involves many processing steps, beginning with the idea or design concept and ending with a finished product. Apparel manufacturing process involves Product Design, Fabric Selection and Inspection, Patternmaking, Grading, Marking, Spreading, Cutting, Bundling, Sewing, Pressing or Folding, Finishing and Detailing, Dyeing and Washing, QC etc.
Textile Finishing is any operation (other than preparation and colouring) that improves the appearance and/or usefulness of fabric after it leaves the loom or knitting machine. Finishing is the final series of operations that produces finished textile fabric from grey goods. Textile finishing usually includes treatments such as scouring, bleaching, dyeing and/or printing, the final mechanical or chemical finishing operations etc.
Dyeing operations are used at various stages of production to add colour and intricacy to textiles and increase product value. It chemically changes a substance so that the reflecting light appears coloured.
When ‘colour’ is applied to a fabric it is termed as dyeing. Dyeing and printing of fabrics is usually done after routine or basic finishes but prior to the application of other finishes. It is mainly done to give colour to the fabric and thus improve the appearance of the fabric.
The textile industry is considered as the most ecologically harmful industry in the world. The eco-problems in textile industry occur during some production processes and are carried forward right to the finished product. In the production process like bleaching and then dyeing, the subsequent fabric makes a toxin that swells into our ecosystem.There fore the need of eco textiles is felt.Green textiles refer to clothing and other accessories that are designed to use organic and recycled material
Dyeing can be performed using continuous or batch processes. Yarn dyeing is used to create interesting checks, stripes, and plaids with different-coloured yarns in the weaving process. Substances which cause these changes are called dyestuffs.
The Dyes are classified based on the fibres to which they can be applied and the chemical nature of each dye. Dyes are complex unsaturated aromatic compounds fulfilling characteristics like intense colour, soluability, Substansiveness and fastness. Dyes can be defined as the different type of colouring particles which differ in each type from the other in chemical composition and are used for colouring fabrics in different colours and shades which are completely soluble in liquid media.
Enzymes are living biological substances that can help speed up any chemical reaction without itself being reduced. But, they work better under certain temperature and pH value. Therefore, these are also called as biological catalysts. Since textiles industry uses many such chemical reactions, enzymes today are a vital part of the textile production system. Applications like pectinases, lipases, proteases, catalases, and xylanases are used in textile processing.