Two kinds of anti mechanical and chemical properties: the former is wax, grease and some inorganic compounds; the latter includes acid alkali salt, oxidizing agent, reducing agent etc..
There is a dedicated anti, such as hydrazine sulfonic acid.
Some are applied to the fabric to make it impossible to contact the fibers, such as paraffin, turpentine, starch, clay and barium sulfate.
Some act as dyes, causing the dye to fail or precipitate, such as lime, lead sulfate, aluminium sulfate, calcium phosphate, etc..
There are reservehao S (the main component of sodium m-nitrobenzenesulfonate) and reservehao H (the main component of hydrazine sulfonic acid ammonium) etc.. With anti staining, first printed on the fabric, and then dyeing, after processing, you can get patterns.
