What are the potential problem caused by acid & alkali in textile wet processing?

PROCESS	Problem
1. Desizing	De-active enzymes & insolubility size mtls, such as starch, PVA etc.
2. Scouring	Combine with soap, precipitate metal organic acids. Produce yellowing or off-white shades, reduce cleaning efficiency & reduce water absorption.
3.Bleaching	Decompose bleach bath. H2O2 → H2O + [O]
4. Mercerizing	Form insoluble metal acids, reduce absorbency & luster.
5. Dyeing.	Combine with dyes, changing their shades, insolubilize dyes, cause tippy dyeing & reduce dye diffusion.
6. Printing	Break emulsion, change thickness, efficiency & viscosity, Combine with dyes, changing their shades, insolubilize dyes, cause tippy dyeing & reduce dye diffusion.
7. Finishing	Interfere with catalysts, cause resins & other additives to become non-reactive break emulsion & de-actives soap.