Composite active black dye
A technology of reactive black and dyes, applied in the field of reactive black dyes, to achieve the effects of reducing head and tail color difference, uniform dyeing, lifting power and blackness
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[0039] Example 1:
[0040] 60g synthetic dye of formula (1-1), 15g synthetic dye of formula (2-1), 8g synthetic dye of formula (3-1), 14g sodium sulfate and 3g dispersant MF By mechanical blending, the reactive black dye composition of the present invention is obtained.
[0041] The performance test of the disperse dye prepared in Example 1 is as follows:
[0042] Dissolve 1 g of the dye composition prepared in the above manner with an appropriate amount of water, and then dilute it into a 250ml volumetric flask. Take 50ml dye solution and mix with 50ml water, then add 5g cotton cloth, 6g sodium sulfate, and then increase to 60℃ at a heating rate of 1℃ / min, keep it for 30 minutes, add 2g sodium carbonate, keep 60℃ for 30 minutes, then Take out the dyed cotton cloth, boil it with non-ionic detergent in boiling soap for 15 minutes, then wash with water and dry at about 70°C to obtain a black with good leveling properties, good washing fastness, and plump jet blackness. Measured with...
Example Embodiment
[0043] Example 2-4, Comparative Example 1-3:
[0044] According to the preparation method of Example 1, the dosage is shown in Table 1.
[0045] Table 1
[0046]
[0047] The test results are shown in Table 2:
[0048] Table 2
[0049]
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