Soaping	Non biodegradable May increase the alkalinity on the fabric.	Enzymatic washing off for Reactive, Vat and indigo dyes. Enzymes like Laccases, Lignin peroxidases and Manganese peroxidases destroy many colour producing compounds along with special effect on fabric.	Excellent Specificity Works only on reactive dye hydrolysate Eco-friendly Biodegradable Leaves rinse bath clear Saves water and Energy Cost effective Excellent Quality Standards Improves fastness properties

1)    Rinsing with overflow at 60 C for 10 min.

2)    Rinsing in fresh bath at 90 C for 10 min.

3)    Allowing to stand with 1 g/I polymer ace. to Example 9 at 90-95 C for 10 min. rinsing at 45 C for 15 min.

The cotton fabric has an intensive color, shows no bleeding and exhibits good wash fastness.

The above-mentioned periods of time, temperatures and sequences are intended to be illustrative. The polymers according to the present invention can also be used under other washing conditions.

German ban-

The findings of the various Research Institutes of Europe who were engaged in the field of Textile research, that some of these dyes are potentially carcinogenic.

Arylamines encompassed by European laws banning azo dyes are tabulated in the adjoining Table.

Fibre manufacturing

Novel fibre-forming biopolymers are now being manufactured using large-scale fermentation equipment. For example, the bacterial storage compound polyhydroxybutyrate (PHB) has been developed by Zeneca Bioproducts (formerly ICI Agricultural Division) and is produced under the trade name 'Biopol'.

This high molecular weight linear polyester has good thermoplastic properties (melting point 180C) and can be melt spun into fibres. Biocompatibility and biodegradability makes PHB fibres ideally suited for surgical use; sutures made from PHB are slowly degraded by the body's enzymes. Zeneca is currently using Biopol in conventional plastics applications such as shampoo bottles.