Direct Violet 1

TRADE NAME:: Direct Violet N; Direct Violet 4RB; Chlorazol Violet N; Diamine Violet N; Dianil Violet H; Erie Violet 3R; Pontamine Violet N

CAS NO: 2586-60-9

CI.NO: 22570

Molecular Formula:C32H22N6Na2O8S2
Molecular Weight: 728.66

COLOR TEMPLATE

Direct Violet 1 Physical and Chemical properties

Solubility(g/L)	SDC classification	displacement(grade)	metal ion effect(grade)		discharge property(grade)		other features
			copper	iron	neutral	basic
—	B	3~4	1	4	4~5	4	—

Colour Fastness Test

sun exposure

soaping

flooding

perspiration

rubbing

ironing

acid and alkali resistant

standard depth

1/12

depth

original color change

white fiber stained

original color change

white fiber stained

original color change

white fiber stained

dry

wet

sulfuric

acetate

soda ash

—

1~2

3~4

2~3

3~4

4~5

2~3

Direct violet N alias direct violet 4RB, direct green lotus N. Appearance is generally black and brown uniform powder. Good water solubility, slightly sensitive to hard water. Soluble in water is dark red to purple, soluble in cellosolve, slightly soluble in alcohol It is reddish purple and insoluble in other organic solvents. The dye is dark blue in concentrated sulfuric acid, dark purple after dilution; reddish brown in concentrated nitric acid. The aqueous solution is concentrated with hydrochloric acid and has purple precipitate. The color of the sauce is precipitated. When the copper ion is dark, the iron ions are slightly discolored.

Direct Violet 1 Application:

Use condition:

1. The dyed cotton or viscose fiber is purple-red. The transferability and levelness are poor. When dyeing, it is advisable to add salt to control the dyeing.

Uniform color can be obtained. It has a certain hiding power for viscose yarn with uneven quality. The dyeing rate is good, and the highest dyeing temperature is 100 °C.

2. It has been used to dye rich fiber, the dyeing rate is still good, the color light is slightly darker than cotton. It has also been used to dye silk and wool. When dyeing vinyl fabric, the dyeing rate is generally blue, purple. It can also be used for dyeing. Nylon. When cotton, viscose fiber and other fibers are dyed in the same bath, silk and wool are lighter and lighter than cotton and viscose. The second vinegar fiber is stained, and polyester and acrylic are slightly stained.

3. It has been used for direct printing on cotton or viscose fabrics and has also been used as a ground color for discharge printing.

4. Direct Violet 1 has been widely used, in addition to the use alone, often mixed with red, blue, brown, gray and other dyes. Used in viscose and its fabrics, cotton knits and carpets, flannel Dyeing or printing. Due to poor fastness, it is more used for dyeing light color on viscose fabrics, and is generally not used for dyeing dark colors.