Chemcolorintl.com
Welcome to CHEMICAL SPECIALITIES
  • 3
  • 4
  • http://wowslider.com/
  • 1
slider by WOWSlider.com v8.7
SULPHUR BLACK

COGENERAL PROPERTIES
This dye belongs to the group of Sulphur Dyes. It is mainly used for dyeing Cellulosic fiber. It is also useful for dyeing viscose, staple fiber and yarn, including material which is to be given a resin finish, Silk, package dyeing and for continuous process. The light fastness of Sulphur Black is very good. Hue. Artificial Light (tungsten) Greenish Black to Bluish Black

REACTION ON CELLULOSE
(a) Alkaline Sodium-dithionate : Yellow olive, returning to original on Oxidation.
(b) Sodium hypochloride : Bleached
(c) H2 So4, conc.Sulphuricacid,conc. : Redder

DYEING
(a) Optimum dyeing temp. : 80-95deg. cent. Occasionally cold
(b) Solubility in Na2S : Very Good
(c) Exhaustion : Good
(d) Dyeing rate : Moderate
(e) Solubility in water : Soluble.


REMARKS
Produces fast black on Cellulosic material
Application also by pad/steam method.
Occasional direct prints on cellulose.


AFTER TREATMENT
(a) Acetic acid : Slightly redder
(b) Acetic acid & chrome : Redder, material must be well rinsed and should be left slightly alkaline (Sodium acetate in final rinsing water after dyeing to counteract formation of acid, which may result in tendering, in unfavorable condition of storage)


FASTNESS PROPERTIES
(a) Acid (Organic) : 4-5
(b) Alkali : 4-5
(c) Hot processing : 5
(d) Light : 6-7
(e) Mercerizing : Redder-Apparent increase in strength
(f) Milling : 4-5
(g) Perspiration : 5
(h) Washing moderate : 5
Washing Severe : 4-5


METHOD OF APPLICATION
The conventional method of application is from a sodium sulphide bath. The following is the general method

The dye is first made into paste with a little water (containing the requisite amount of Sulphide and soda ash) and then boiled for about ten minutes with further addition of water, to make solution. This solution is then made upto the requisite volume with water in the dyeing vessel. The material to be dyed is then introduced in bath, the temperature is raised and the necessary quantity of common salt or glauber’s salt crystals are added depending upon the depth of the shade required. The material is then rinsed well, after treated if necessary, rinsed again and finished in the normal manner.


PRECAUTIONS FOR SAFE HANDLING
1. Sulphur Black should be stored in a cool, dry place.
2. The material should not be exposed to air, container should be tightly closed.
3. Mildly currosive and poisonous if ingested.
4. In case substance goes into eyes,wash with water repeatedly for 15 minutes.
5. Seek medical advice when anyone has symptoms due to swallowing or inhalation.


STORAGE
It is quite stable, if stored in cool and dry place.


APPLICATION
Used for Jigger, Winch and package-Dyeing for Cotton and Viscose rayon. Economic in Continuous dyeing.


ITEM
COLOURSAMPLE
Names of Dyes
Colour Index Sulfur
Light
Fade
Stain
Iron
1
 
SULPHUR OLIVEGREEN 7731 200%
Colour Mixed
4
3
4
4
2
 
SULPHUR OLIVEGREEN 715 200%
Colour Mixed
4
3
4
4
3
 
SULPHUR OLIVEGREEN 519 200%
Colour Mixed
4
3
4
4
4
 
SULPHUR OLIVE KKN 200%
Colour Mixed
4
3
4
4
5
 
SULPHUR DARK BROWN GD 100%
BROWN 4
4
4
4-5
4
6
 
SULPHUR DARK BROWN GRV 200%
Colour Mixed
4
4
4-5
4
7
 
SULPHUR DARK BROWN FW 100%
Colour Mixed
4
4
4-5
4
8
 
SULPHUR DARK BROWN GN 200%
Colour Mixed
4
4
4-5
4
9
 
SULPHUR DARK BROWN GB 200%
Colour Mixed
4
4
4-5
4
10
 
SULPHUR DARK BROWN GG 200%
Colour Mixed
4
4
4-5
4
11
 
SULPHUR BBK 200%
Colour Mixed
5
2-3
4-5
4
12
 
SULPHUR KAHKI N 200%
Colour Mixed
4
4
4-5
4
13
 
SULPHUR GREY K-BR 100%
Colour Mixed
4
4
4-5
4
14
 
SULPHUR GOLDEN RORDEALIK RT 150%
Colour Mixed
4
4
2
4
15
 
SULPHUR LEMON VG 100%
Colour Mixed
4
4
4-5
4
16
 
SULPHUR BLACK BR 200%
BLACK 1
5
3-4
4-5
4
17
 
SULPHUR BLACK B 200%
BLACK 1
5
3-4
4-5
4