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Active black dye composition

A dye composition and dye compound technology, applied in the field of reactive black dyes, can solve the problems of difficulty in guaranteeing levelness and reproducibility, insufficient blackness, etc., achieve excellent dyeing synchronization and levelness, reduce head and tail The effect of color difference and even dyeing

Inactive Publication Date: 2013-05-01
HAIAN CHANGDA TECH TRANSFER CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, the printing and dyeing industry has adopted the most widely reactive black, and most of them are compounded by adding C.I reactive orange 78 to C.I reactive black 5. Although the principle of complementary color has been used to improve the blackness of commercial dyes, it is still in the dyeing process. There are still several shortcomings: ① the blackness is not full enough; ② different dyes are more sensitive to the directness of the fiber, dyeing temperature, liquor ratio, dye accelerator salt, color fixing agent alkali, and pH value. Large individual differences, so level dyeing and reproducibility are difficult to guarantee; ③A certain application performance needs to be improved, such as color fixation rate, solubility, lifting rate, dyeing depth, washing fastness, rubbing fastness, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The dyestuff of the formula (1-1) obtained by synthesis of 60g, the dyestuff of formula (2-1) obtained by synthesis of 16g, the dyestuff of formula (3-1) obtained by synthesis of 8g, 14g of sodium sulfate and 2g of dispersant MF are carried out Mechanical blending can obtain the reactive black dye composition of the present invention.

[0044] The disperse dye that embodiment 1 is made carries out performance test, and test method is as follows:

[0045] 1 g of the dye composition prepared in the above-mentioned manner was fully dissolved with an appropriate amount of water, and then settled in a 250 ml volumetric flask. Draw 50ml of dye solution and mix it with 50ml of water, then add 5g of cotton cloth and 6g of sodium sulfate, then raise the temperature to 60°C at a rate of 1°C / min, keep it for 30 minutes, add 2g of sodium carbonate, and keep it at 60°C for 30 minutes, then Take out the cotton cloth to be dyed, boil it with non-ionic detergent boiling soap for 15 mi...

Embodiment 2-4

[0046] Embodiment 2-4, comparative example 1-3:

[0047] According to the preparation method of Example 1, the consumption is as shown in Table 1

[0048] Table 1

[0049]

[0050] The test results are shown in Table 2:

[0051] Table 2

[0052]

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Abstract

The invention relates to an active black dye composition as well as preparation and an application thereof, particularly relating to an active black dye suitable for dyeing cellulose or protein fibers. The active black dye composition provided by the invention has good washing fastness, excellent buildup, leveling property and dyeing reproducibility and high dye uptake. The active black dye composition mainly comprises the dye compounds shown in the formulas (1), (2) and (3).

Description

1. Technical field [0001] The invention relates to a reactive black dye composition and its preparation and use, more particularly to a reactive black dye suitable for dyeing cellulose or protein fibers. The invention belongs to the field of dyes. 2. Background technology [0002] In recent years, the printing and dyeing industry has adopted the most widely reactive black, and most of them are compounded by adding C.I reactive orange 78 to C.I reactive black 5. Although the principle of complementary color has been used to improve the blackness of commercial dyes, it is still in the dyeing process. There are still several shortcomings: ① the blackness is not full enough; ② different dyes are more sensitive to the directness of the fiber, dyeing temperature, liquor ratio, dye accelerator salt, color fixing agent alkali, and pH value. Large individual differences, so level dyeing and reproducibility are difficult to guarantee; ③A certain application performance needs to be im...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/24C09B67/36D06P1/38D06P3/66D06P3/10
Inventor 钱文衡刘鹏
Owner HAIAN CHANGDA TECH TRANSFER CENT
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