Basic Blue 26

Application Features

Colour Fastness Test

Basic Blue 26(Victoria blue B) is red red and brown in concentrated sulfuric acid, and then turns blue from yellow to green after dilution. It is olive green in concentrated nitric acid. Add hydrochloric acid to precipitate blue. Add 10% sulfuric acid solution to cotton dye, slightly green and dark. Drip 10% acid stannous chloride solution into a yellowish brown color. Cotton fibers dyed with tannin mordant are brilliant blue and greenish dark under tungsten light.

1.For silk and wool dyeing,

2.Tannin mordant cotton dyeing.

3.Also work on typing stencil paper, carbon paper and common paper dyeing

4.bamboo and wood coloring

5.manufacturing of color lake and solvent dyes

Use condition:

1. Silk dyeing: used for silk dyeing, carried out in acetic acid bath. Now it is rarely used.

2. Acrylic fiber dyeing: used for acrylic fiber dyeing, grade 2 fastness to sunlight, grade 4 fastness to soaping, grade 4 fastness to perspiration and grade 3 fastness to dry friction

Class iii, wet rubbing fastness grade iii, ironing, dry cleaning, water immersion fastness grade 4-5.

3. Wool dyeing: it can be used for wool dyeing. The fastness to sunlight is grade 1~2, and the fastness to soaping is grade 3.

4. Cotton dyeing: tannin mordant dyeing cotton fiber are available, and sunlight fastness 1 ~ 2 level in cotton, soaping fade and touch fastness are level 4, with water fade and fastness are level 4, with color and fade in color fastness to perspiration for level 4, iron fastness 4 ~ 5 level, dry rubbing fastness for 3 ~ 4, wet rubbing fastness of grade 2. Resistance to sulfuric acid fastness for 1 ~ 2 magnitude, resistance to acetic acid fastness to a category four, soda ash resistant fastness to level 2. Is now rarely used.

5. Others: can be used for hemp, leather, bamboo, typing wax paper, carbon paper and general paper dyeing, also used for the manufacture of lake and solvent dyes.