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Vat Black 25

TRADE NAME:
Vat Olive T
Vat Olive GT
Cibanon Olive S

CAS NO: 4395-53-3

CI.NO: 69525

Molecular Formula: C45H20N2O5
Molecular Weight: 668.65
Shade: Brown light grey.
COLOR TEMPLATE

Vat Black 25 Physical and Chemical properties

Dyeing depth g/L

30

Dyeing method

IN IN spl.

Leuco color

Grey

Leveling property

Dead cotton

Light (Xenon test 1/12)

7

Light (Xenon test 1/1)

7-8

Light (Xenon test 2/1)

8

Application Features

Deying Method

Dyeing Tempreture(℃)

VAT Method

VAT Tempreture(℃)

 Levelness

Others

A Method

60,The Highest 90

Dry cylinder

60~65

Middle

Colour Fastness Test

Sun fastness

Soaping(95℃)

Perspiration

Rubbing

Ironing

Ironing

Mercerizing

Standard Depth

1/12

Depth

Sample change

White stained

Sample change

White stained

Dry 

Wet

 immediately

After 4h

Chlorine bleaching

Oxygen bleaching

Sample change

White stained

8

7

4~5

5

3~4

4~5

4

3

4

5

4

4~5

4~5

5

The appearance of reduced olive T was brown powder. In concentrated nitric acid, the dye is red and brown. The cryptochromes produced by the dye in alkaline insurance powder solution are gray, while the acid insurance powder solution is dark olive.

Vat Black 25 Application:

Mainly used in cotton fiber dyeing, generally not used for printing. Suitable for suspension pad dyeing, and other dye spell dyed all kinds of noise, leuco can dye cotton yarn, but also can be used for silk and wool dyeing, and have a good washing fastness and fastness to sunlight.

Vat Black 25 Use condition:

1.Vat olive T is suitable for cotton products dyeing, either by methylene method or methylene method (the dosage of caustic soda is 30%~40% higher than methylene method).

2.Due to the high speed of initial dyeing, it is often necessary to add levelling agent when dyeing light color. Poor covering power for dead cotton. It can be used with general oxidation method after dyeing.

3.Reductive olive reductive olive T is not commonly used in printing

4.Vat Black 25 can dye silk and wool with good fastness to sunlight and washing.

5.The VAT olive T stain was treated with urea - formaldehyde and cyanoformaldehyde resin.

Precaution

1.If the reducing olive T dye, temperature more than 60 ℃, light will be brown.

2.Restore Vat Black 25(vat olive T) should be stored in dry and ventilated place to avoid damp.

 

Packing:

20 or 25kg/compound bag, carton box, iron drum, fiber durm for powder dye and 1000kg/tank for liquid dye

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