Cationic black X-O

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Cationic black X-O is a kind of cationic dyes, and it is a special dye for acrylonitrile fiber. Cationic black X-O dyeing method is close to boiling dyeing in weak acid bath (pH value is about 4.5), with acetic acid and sodium acetate as buffers, in the presence of dielectric and appropriate additives. Cationic black X-O produced by milestone Industrial Co. Ltd. has stable performance and excellent dyeing and coloring effect, which has been highly praised by customers.

Specification

Chemical Name: Cationic Black X-O

CBNumber:CB61127490

Appearance: Red-brown uniform powder

Hue: similarity

Strength: 300%

Combination Index/k:3

Saturation/f: 1

PH rang: 3-6

Reproducibility : Excellent

Dischargeability : Good

Application of cationic black X-O:

• Cationic black X-O is mainly used for the color of acrylic fiber dyeing and its blended fabric. When the pH value of dyeing bath is below 5, the shade is stable. When the pH value of accumulated food is above 5.5 and the temperature is above 130℃, the shade is also stable.
• Cationic black X-O can be used to dye this polyester
• Application of cationic black X-O in printing: it can be printed directly, and the ground color can be bleached by decolin  

New cationic dyes

1) Migrating cationic dyes

The so-called migrating cationic dyes refer to a kind of dyes with simple structure, small molecular weight and molecular volume, and good diffusibility and leveling performance. At present, they have become a large category of cationic dyes;

2) Cationic dyes for modification:

In order to adapt to the dyeing of modified synthetic fibers, a batch of cationic dyes were screened and synthesized. The modified polyester fiber has the following structures: yellow is mainly conjugated methylchuan dyes; red is triazole or thiazole azo dyes and isolation azo dyes; blue is thiazole azo dyes and oxazine dyes.

3) Disperse cationic dyes

In order to adapt to the dyeing of modified synthetic fibers, a batch of cationic dyes were screened and synthesized.

4) Reactive cationic dyes:

Reactive cationic dyes are a new type of cationic dyes. The introduction of reactive groups into conjugated or isolated dyes gives them special properties, especially in blended fibers, which can not only keep bright color, but also dye many kinds of fibers.