Preparation of textiles for wet processing i.e Bleaching or Dyeing or Printing:
The preparation of textiles for bleaching/dyeing/printing is just like same as we do preparation for examination. Why we do preparation for examination? The answer may be to pass the exam. Therefore when we have certain goal in mind, we do prepare our self to achieve the same. In similar way, in the textile, our goal may be to get bleached or dyed or printed fabric. To achive this goal we ahve to prepare textile material to make it ready to bleach/dye/print.
Following are the processes for preparation of textile material for bleaching/dyeing/printing:
Desizing: Removal of sizing chemicals such as starch/poly vinyl alcohol (PVA) etc from the fabric . To understand desizing we must know sizing process.
Sizing: Sizing is a process in which we apply starch or PVA or other ingredient on the warp yarn (Just like a coating) to improve warp yarn strength without affecting its elongation properties much so it can stand stress and strain during weaving process. Please note that sizing is carried out only in weaving not in Knitting.
Desizing process: There are four methods for desizing. These are:
1. Rot steeping
2. Acid steeping
3. Oxidative desizing
4. Enzymatic desizing
The preparation of textiles for bleaching/dyeing/printing is just like same as we do preparation for examination. Why we do preparation for examination? The answer may be to pass the exam. Therefore when we have certain goal in mind, we do prepare our self to achieve the same. In similar way, in the textile, our goal may be to get bleached or dyed or printed fabric. To achive this goal we ahve to prepare textile material to make it ready to bleach/dye/print.
Following are the processes for preparation of textile material for bleaching/dyeing/printing:
Desizing: Removal of sizing chemicals such as starch/poly vinyl alcohol (PVA) etc from the fabric . To understand desizing we must know sizing process.
Sizing: Sizing is a process in which we apply starch or PVA or other ingredient on the warp yarn (Just like a coating) to improve warp yarn strength without affecting its elongation properties much so it can stand stress and strain during weaving process. Please note that sizing is carried out only in weaving not in Knitting.
Desizing process: There are four methods for desizing. These are:
1. Rot steeping
2. Acid steeping
3. Oxidative desizing
4. Enzymatic desizing
Nice to read this post about Preparation of textiles for wet processing like Bleaching, Dyeing, Printing and it will support the manufacturers of textile fixing agents to use them in manufacturing needs.
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