Acid Dyes

Acid Dyes Procedure

Dye bath set with

Well dissolved dyestuff is added to one of the above mentioned bath (Depending on the chemical nature of the dye) while stirring.

The material is entered at about 50°C after running for five minutes temperature is rised gradually to boile and dyeing continued for 45- 60 mintutes. If required 1-3% Sulphuric Acid is added after 45 minutes to complete the exhaustion.

Procedures

1:1 metal complex dyes : These dyes exhibit good migration properties and have good light fastness and wet fastness properties.

Dye bath : 5 -10% Glauber's Salt, 4-5% Sulphuric Acid

Enter the goods at 60°C and raise temerature of the dye bath to boile dye for 90 minutes. Rines and dry.

1:2 metal complex dye : These dyes have excellent leveling properties, highlight fastness properties and used widely for combination shade because of excellent dyeing behavior.

Dye bath : 1-3% Ammonium Sulphate (pH 6-6.5), 5-10% Glauber's Salt

Enter the goods at 50°C and rise the temperature of the dye bath to boile dye for 45- 60 minutes. Rines and dry.

Solubility gm /
1 at 90º C
Fastness
Light Washing Perspiration
( Alkaline)
Acid
Milling
0.2% 2.0% Product  Name
    Yellow 2G
( Yellow 17)
60 5 4-5 4 4
    Yellow GL
( ellow 114)
40 6-7 4-5 4 4-5
    F Yellow MR
( Yellow 42)
70 4-5 4 4-5 3
    Metanil Yellow R
( Yellow 36)
70 3 2 3 4
    Yellow GR
( Yellow 99)
80 6 4 4-5 4
    Yellow 2GLN
( Yellow 56 )
40 6 -7 4-5 4-5 4-5
    Orange II
(Orange 7 )
90 4 3-4 2-3 4
    Orange G
(Orange 74)
50 6 -7 4-5 4-5 4
    Orange RL
(Orange 86)
90 7 4-5 4-5 4-5
    Orange MRL
(Orange 142)
50 6 4-5 4-5 4-5
    Red G
(Red 97)
40 4 3 4-5 4
    Red GRE
(Red 183)
40 6-7 3-4 4-5 3-4
    Scarlet 3R
(Red 18)
40 4-5 2-3 2-3 3
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