The appearance is generally brown liquid, pH value (1% water solution) 2.0-4.0, anionic, odorless, slightly special smell, taste astringent, deeper color while exposed under light and in air. Soluble in water, soluble in ethanol, acetone and glycerin, almost insoluble in ether, benzene, chloroform and petroleum ether. It has strong hygroscopicity. Decompose in 210 ~ 215 ℃, It can produce insoluble salt with copper, aluminum, iron, tin, chromium and metal salts, and each has its own special color. It is best to use soft water or add 1 g/L 6 sodium phosphate when used.
[Brief information ] Sulfur dye fixing agent is a formaldehyde-free fixing agent, mainly used in post-treatment of vulcanized dye fabrics and obviously all fabrics’ fastness. [Main composition] --Polycation polyamine compounds. [General properties ] -- Appearance: Colorless ...
Fixing agent for acid dyes will be deposited on the surface of the fiber, plugging the pores of acidic dyes dissolved again, thus reducing the possibility of fading, and generally improving the color fastness 1 ~ 1.5. Based on this, the solid color of the impregnation method is ...
Definition of non formaldehyde dye fixing agent At present, color fixing agent can be divided into cationic fixing agent, resin type fixing agent (containing formaldehyde resin type fixing agent containing polyamine resin type fixing agent) and cross linking reaction type ...