Novel substitutive alkali and preparation method thereof

A new technology of substitute alkali, which is applied in the field of new substitute alkali and its preparation, can solve the problems of unstable dyeing rate and deviation of color light, etc., and achieve the effects of reducing transportation costs, saving storage space, good economic and social benefits

Inactive Publication Date: 2017-06-13
周口科技职业学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some problems in the use of the existing substitute alkalis, such as the unsteady dyeing rate of some dyes, and the deviation of the shade of the dyed fabric from the shade of the fabric fixed with soda ash.

Method used

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  • Novel substitutive alkali and preparation method thereof
  • Novel substitutive alkali and preparation method thereof
  • Novel substitutive alkali and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A new substitute base is made from the following raw materials in weight percentage: 82% of organic base and potassium carbonate, 10% of buffering agent and 8% of additives. The weight ratio of the organic base and potassium carbonate is 10:90. The organic base is triethanolamine, the buffering agent is sodium metasilicate, and the additive is sodium hydroxide.

[0019] The preparation method of the novel substitute base comprises mixing an organic base with potassium carbonate, a buffer and an additive in proportion, and stirring at room temperature until it becomes a colorless transparent liquid.

Embodiment 2

[0021] A novel substitute base and preparation method thereof, the same as in Example 1, the difference is that the novel base substitute is made of the following raw materials in percentage by weight: organic base and potassium carbonate 73%, buffering agent 15%, additive 12% . Wherein, the weight ratio of organic base and potassium carbonate is 20:80.

Embodiment 3

[0023] A novel substitute base and preparation method thereof, the same as in Example 1, the difference is that the novel substitute base is made of the following raw materials in weight percentage: organic base and potassium carbonate 77%, buffer 15%, additive 8% . Wherein, the weight ratio of organic base and potassium carbonate is 20:80.

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Abstract

Disclosed is novel substitutive alkali. The novel substitutive alkali is prepared from, by weight, 73-82% of organic alkali and potassium carbonate, 10-15% of buffer agent and 8-12% of additive. The novel substitutive alkali has the advantages that wet rubbing fastness values of the novel substitutive alkali and sodium carbonate are close, the wet rubbing fastness values are up to Grade IV when the novel substitutive alkali is used for cotton fabrics dyed by reactive dark blue SGE and reactive blue SPR dyes and fixed, and the novel substitutive alkali is up to or superior to fixation performance of highly-condensed dyeing substitutive alkali and the sodium carbonate.

Description

technical field [0001] The invention belongs to the technical field of printing and dyeing auxiliaries, and in particular relates to a novel substitute alkali and a preparation method thereof. Background technique [0002] Reactive dyes are water-soluble dyes containing reactive groups. They are currently the most important type of dyes used for dyeing cellulose fibers. They can be covalently cross-linked with hydroxyl groups on cellulose molecules under alkaline conditions to achieve color fixation. the goal of. The color-fixing alkali agents used in the traditional dyeing process of reactive dyes are mainly some inorganic substances, and the common ones are carbonates, phosphates, silicates, etc. In practice, it is found that the use of soda ash has the characteristics of good reproducibility of dyed fabrics and stable pH value of dyeing liquor. However, during the use of soda ash, there are defects such as easy generation of dust, poor water solubility, and easy agglome...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P5/06D06P5/10D06P1/38D06P3/66D06P1/645D06P1/673
CPCD06P1/38D06P1/645D06P1/6735D06P1/67383D06P3/66D06P5/06D06P5/10
Inventor 李纳纳史雯顾薇薇
Owner 周口科技职业学院
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