What is cationic polyester yarn?

What is polyester cationic?

Cationic Dyeable Polyester (CDP) is a special modified polyester fiber which is charged with anionic groups during polymerization. Having anionic groups, it can be dyed with cationic dyes giving good results with high brilliancy.

What does cationic yarn mean?

A type of dye used on acrylic or on modified polyester or modified nylon yarn. Often used to achieve cross dyed effects: Cationic dyeable yarn is woven in a pattern with regular yarn in the same fabric.

What is cationic material?

A cationic material has a net positive charge. Positive ions such as the sodium ion are cationic. A polyelectrolyte is called cationic if its chain has a positive charge after dissociation of monomeric counter-ions such as chloride or acetate.

What is CDP yarn?

Cationic dyeable polyester (CDP) is a modified polyster material which introduced modifying agents during polymerization (to makes the polyester molecular chain with sulfuric acid group),the modified polyester is dyeable with cationic dyestuff (regular polyester can’t only be dyed with disperse dyestuff),moreover,the …

What is meant by cationic?

1 : of, relating to, or being a cation. 2 : characterized by an active and especially surface-active cation a cationic dye. Other Words from cationic More Example Sentences Learn More About cationic.

Is Cotton anionic or cationic?

Although Cotton is inherently anionic, cationic dyes are not used for reactive dyeing. Rather, common practice is cationisation of cotton followed by anionic dyeing.

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What does cationic dye mean?

Cationic dyes are dyes that can be dissociated into positively charged ions in aqueous solution. … Cationic dyes are also used to dye polyacrylonitrile fibers during spinning. Dyeing of paper, leather, and other substrates: Cationic dyes exhibit good affinity for negatively charged wood pulp and unbleached pulp grades.

Is water a cationic?

The positively charged ions are called cations, and the negatively charged ions are called anions. Because water is globally neutral electrically (otherwise you would get an electric shock when you put your hand in water) the number of positive charges is identical to the number of negative charges.

Why are basic dyes cationic?

Basic dyes are called cationic dyes because when salts of organic bases are ionize into anionic and cationic part that’s time cation is the responsible for color production. On the otherhand basic dyes are basically hydro-chloride or salts of organic bases.

What is CDP fabric?

Cationic dyeable polyester(CDP) was produced through melt blending of cationic chips having of sodium salt of dimethyl ester of 5-sulfoisophthalic acid(DMS salt) and normal polyester chips in different proportions to obtain yarns having varying amount of comonomer in the fiber.