ORGLIST:Sizing, Desizing, and Scouring chemicals for Textile Processing

Hi,

1) I am looking for a good scouring or cleaning chemical to remove wax, pectins, proteins, seed coats and hydrocarbons from the cotton fabric. Usually, emulsifier base like Tri-decyl Alcohol 6 mole E. O. or Nonyl Phenol 9.5 mole is used. However, I am looking for a non-Emulsifier base chemical. Is it possible? If so, what chemical or compound would help?

2) During spinning, in order to strengthen the yarn or the thread,  starch is coated to provide durability. This step is known as SIZING. However starch is non-cold water soluble and is non-retrogative (once it has hardened after solubilizing it by heating, it cannot be re-solubilized). After spinning and weaving of the fabric, starch has to removed. The step is known as Desizing. One of the ways of desizing is treating the fabric with concentrated HCl acid. However, this causes tendering of the fabric. Another, and recent development is usage of alpha-amylase based enzymes. However, there are certain acrylic polymers that can be used instead of starch as a sizing chemical. Moreover these acrylic polymers are water soluble and can be easily removed during desizing step. Can somebody guide on the same.

3) As mentioned in 2, after sizing, desizing needs to be done. Apart from HCl and Enzyme treatment, there are certain blends of polymeric surfactants and surfactants that can be used to remove size material like starch. Again, can somebody make a suggestion or throw some light on the same? Off course, you would require this chemical if starch is the sizing material and not some acrylic polymer that is water soluble.

Thanks for the help.

VIKAS SARAF