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Dyeing substitution alkali for cellulose fiber reactive dyes

A technology of cellulose fiber and reactive dyes, applied in the field of dyeing substitute alkali, can solve the problems of poor color fastness, increased production cost, large usage, etc., and achieve good color fastness

Inactive Publication Date: 2013-05-22
SUZHOU INST OF TRADE & COMMERCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Nowadays, in traditional production, sodium carbonate is generally used, but the color after dyeing is not deep, the color fastness is poor, and the usage is large, which increases the production cost

Method used

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Examples

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Embodiment Construction

[0012] A cellulose fiber reactive dye dyeing substitute alkali, its basic composition and mass percentage are:

[0013] Sodium bicarbonate 10%

[0014] Sodium Hydroxide 5%

[0015] Borax 70%

[0016] Sodium acetate 15%

[0017] Principle of the present invention is:

[0018] In the alkaline system composed of sodium acetate, borax, sodium bicarbonate and a small amount of sodium hydroxide, the dye can be dyed evenly, and the color is darker, the color fastness after dyeing is better, and the influence on the shade is small. Compared with the traditional use of sodium carbonate, the amount of this substitute alkali is 1 / 4 to 1 / 3 of the amount of sodium carbonate, especially sodium acetate, sodium bicarbonate and borax form a certain alkaline buffer system, which can better Maintain the conditions required for dye fixation, making the dyed color darker and better in color fastness. The cost of using substitute alkali is slightly lower than that of sodium carbonate. Due ...

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Abstract

The invention discloses dyeing substitution alkali for cellulose fiber reactive dyes. The dyeing substitution alkali comprises sodium bicarbonate, sodium hydroxide, borax and sodium acetate. The dyeing substitution alkali disclosed by the invention can enable the dye to dye uniformly, the obtained color is deeper, the color fastness after dyeing is better, and the influence on color light is smaller.

Description

technical field [0001] The invention relates to a dyeing substitute alkali, in particular to a cellulose fiber reactive dye dyeing substitute alkali. Background technique [0002] Nowadays, in traditional production, sodium carbonate is generally used, but the color after dyeing is not deep, the color fastness is poor, and the amount of use is large, which increases the production cost. Contents of the invention [0003] In order to solve the above problems, the present invention proposes a substituted alkali for dyeing of cellulose fiber reactive dyes. The present invention enables dyes to be evenly dyed, and the color is darker, and the color fastness after dyeing is better, and has less influence on shade. [0004] In order to achieve the above-mentioned technical purpose and achieve the above-mentioned technical effect, the present invention is realized through the following technical solutions: [0005] A cellulose fiber reactive dye dyeing substitute alkali, its b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/673D06P1/653D06P1/38D06P3/66
Inventor 许磊
Owner SUZHOU INST OF TRADE & COMMERCE
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