Black dye composition

A technology of dye composition and black dye, which is applied in the field of dye composition, can solve problems such as head-to-tail color difference, achieve the effects of reducing processing costs, uniform dyeing liquor, and reducing environmental pollution

Inactive Publication Date: 2010-06-16
TIANJIN DEK CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most of the reactive dyes suitable for pad printing are relatively direct, and it is easy to cause color difference between the beginning and the end during the printing process.

Method used

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  • Black dye composition
  • Black dye composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1740kg of reactive black 5, 538.79kg of reactive orange 142 and 257.01kg of sodium sulfate are directly mixed through dry blending equipment, and mixed thoroughly to obtain a black dye composition, or equivalent to containing 1740kg of reactive black The liquid dye of 5, the liquid dye equivalent to 538.79kg of reactive orange 142 and the sodium sulfate of 257.01kg are fully stirred and mixed uniformly in the liquid blending equipment, and the black dye composition can be obtained after drying and spraying.

Embodiment 2

[0022] 500kg of reactive black 5, 154.73kg of reactive orange 142 and 73.82kg of sodium sulfate are directly mixed evenly through dry blending equipment to prepare a black dye composition, or a liquid dye equivalent to 500kg of reactive black 5 With the liquid dye equivalent to 154.73kg of reactive orange 142 and 73.82kg of sodium sulfate in its liquid blending equipment, after fully stirring and mixing, the black dye composition can be obtained after drying and spraying.

[0023] The blended product of embodiment 1 is made into 100ml of dye liquor of 10 grams per liter, the strip shape of cotton fabric 0.1m * 12m, continuous pad dyeing on cotton fiber under the same condition. After the pad dyed fabric is treated, the color measurement is performed with a color measurement instrument at intervals of 1m. The color measurement data are shown in Table 1:

[0024] Table 1 Color measurement data of dyed fabrics

[0025] serial number

[0026] It can be seen from the dat...

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Abstract

The invention relates to a black dye composition, which comprises reactive black 5 and reactive orange 142, wherein the weight ratio of the reactive black 5 to the reactive orange 142 is 5-95:95-5. The reactive dye composition has good water solubility and can reach 200g/L at 25 DEG C; the dye solution is uniform; and a problem of tailing of ending in the printing process is solved. The dye solution can be fully utilized so as to reduce waste liquor, dye solution treatment cost and environmental pollution.

Description

technical field [0001] The invention belongs to the field of dye compositions, in particular to a black dye composition. Background technique [0002] Reactive Black 5, CAS registration number 12225-25-1, black powder, blue-green in concentrated sulfuric acid, turning blue-gray after dilution; brown in concentrated nitric acid, turning light brown after dilution. Water solubility (25°C)>200g / L, its aqueous solution is blue light black. The dye is used for dyeing and printing cotton, linen viscose, silk and nylon. In addition to being used alone, it can be combined with reactive purple and reactive blue to dye dark blue, and reactive brilliant red M-8B can be combined to dye deep navy blue. Reactive black KN-B has a blue-black color and can be used instead of aniline black for dyeing and printing. The process is simple and the color is similar. The dyed fabric of this product is treated with 2D resin, and the shade is basically unchanged. The cotton cloth is treated wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22D06P1/384
Inventor 张兴华张玉卿刘文祥
Owner TIANJIN DEK CHEM
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