Solubilised Sulphur Yellowish Brow

Time:2018-04-06 20:52  Author:admin  Click:

Solubilised Sulphur Yellowish Brow

Properties
  It is orange brown when soluble in dense sulphuric acid, and releases sulphur dioxyde, it produces precipitate after diluting; It is orange when soluble in sodium hydroxiole and sodium sulfide

Qulity standard

Appearance:

Red brown powder

Spectrometer strength, score (as compared to the standard):

100±5

Strength, score (as compared to the standard):

100±3

Shade (as the starndard):

no difference¡«micro

Insoluble matters in water, %:

≤0.5

Fineness (residue through the sieve of 250μm), %:

≤5.0

Solubility, g/L(90°C):

≥60

Loss of drying, %:

≤7.0

 

Fastness of dyes on cotton fabrics:

Dyeing depth, %

Resi-
stance Sunlight

Resistance washing with soap at 95°C

Resistance water

Resistance perspiration

Rubbing

Ironing at 200°C

acid

alkali

Change

Stain on cotton

Stain on wool

Change

Stain on cotton

Stain on wool

Change

Stain on cotton

Stain on wool

Change

Stain on cotton

Stain on wool

Dry

wet

Change (after 4 hours)

8

4

3

3-4

4

3-4

4-5

4-5

3-4

4-5

4-5

3-4

4-5

4-5

3-4

2-3

3-4

 

Note: 8% (owf) 1/1 dyeing depth standard. Used for assessment of leather products are not on the cotton fabric color fastness.
Uses
Used dyeing on fiber and leather.

Starage and transportation
It must be stored in drying, cool and ventilation. Must be prevent from sharp bump to transport it. Avoid contact with fire, sunlight and rain.
Packing
In 25kg net each plastic weave lined with plastic bag.