Reactive blue-to-black dye composition and dye product

A technology of black dyes and dye compounds, applied in the field of reactive blue to black dye compositions and dye products, which can solve the problems of high COD of dyeing residue, increased sewage treatment pressure, low dye utilization rate, etc., and achieve extremely high dyeing depth And fixation rate, reduce the amount of dye, excellent effect of color fastness
CN114181545APending Publication Date: 2022-03-15ZHEJIANG KEYONG CHEM CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG KEYONG CHEM CO LTD
Publication Date
2022-03-15

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Abstract

The invention discloses a reactive blue-to-black dye composition and a dye product. The reactive blue-to-black dye composition comprises a component A, a component B and a component C. The component A is selected from at least one of dye compounds shown in a formula (I) and alkali metal salts thereof, and the component B is selected from at least one of dye compounds shown in a formula (II) and alkali metal salts thereof. And the component C is selected from at least one of dye compounds as shown in formulas (III)-(IV) and alkali metal salts thereof. The invention provides a reactive blue to black dye product which comprises the reactive blue to black dye composition. Compared with conventional reactive black, the reactive blue-to-black dye product disclosed by the invention has the advantages that the strength is higher by 60% or above, the dye is extremely high in deep dyeing property and fixation rate, the use amount of the dye can be greatly reduced, various color fastnesses are excellent, particularly the washing fastness is outstanding, and the reactive blue-to-black dye product is suitable for printing and dyeing nitrogen-containing and / or hydroxyl-containing fiber materials and blended fabrics thereof.
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Description

(1) Technical field

[0001] The invention relates to a reactive dye composition and a dye product, in particular to a reactive blue to black dye composition and a dye product suitable for printing and dyeing nitrogen-containing and / or hydroxyl-containing fiber materials. (2) Background technology

[0002] Blue to black is the most important color in reactive dyes, accounting for more than 50% of the total output of reactive dyes. Conventional blue to black reactive dyes are widely used to compound C.I. reactive black 5 and various reactive oranges. Although the blackness has been improved to a certain extent, the amount of dye is more than 10%, and the utilization rate of dye is low, resulting in increased floating color. The fastness is poor and the COD of the dyeing residue is high, which can not meet the needs of printing and dyeing enterprises for extra deep black, and also increases the pressure of sewage treatment. (3) Contents of the invention

[0003] In order to s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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