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Modified sodium alginate paste material and preparation method thereof

A sodium alginate paste and sodium alginate technology, which is applied in the field of printing and dyeing, can solve the problems of poor storage stability and achieve the effects of improved stability, low price and improved storage stability

Inactive Publication Date: 2018-04-27
苏州天亦辰针织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the advent of reactive dyes, sodium alginate has been used as a paste for reactive dye printing at home and abroad. However, with the development of printing technology, the requirements for paste are getting higher and higher, and the existing sodium alginate paste has poor storage stability.

Method used

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  • Modified sodium alginate paste material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of modified sodium alginate paste provided in this embodiment, firstly prepare cross-linked hydroxymethyl starch according to the following steps:

[0026] Put corn starch, organic solvent, and crosslinking agent into the kneader, the ratio of the three is 50:5:8, and stir evenly;

[0027] Add caustic soda solution and alkalize for 30 minutes;

[0028] Add sodium chloroacetate, heat and control the temperature at 40°C, and react for 1.5h;

[0029] The product is taken out, dried and pulverized to obtain white powdery cross-linked hydroxymethyl starch.

[0030] The water is softened, and sodium hexametaphosphate is added as a water softener to remove the water-soluble complexes formed by calcium and magnesium ions in the water.

[0031] Then prepare the modified sodium alginate paste as follows:

[0032] S1. Stir 25 kg of sodium alginate, 75 kg of cross-linked carboxymethyl starch, 3 kg of sodium bicarbonate, 12 kg of carboxymethyl cellulose, 5 kg of sodium pol...

Embodiment 2

[0036] A kind of modified sodium alginate paste provided in this embodiment, firstly prepare cross-linked hydroxymethyl starch according to the following steps:

[0037] Put corn starch, organic solvent, and crosslinking agent into the kneader, the ratio of the three is 50:5:8, and stir evenly;

[0038] Add caustic soda solution and alkalize for 45 minutes;

[0039] Add sodium chloroacetate, heat and control the temperature at 55°C, and react for 2 hours;

[0040] The product is taken out, dried and pulverized to obtain white powdery cross-linked hydroxymethyl starch.

[0041] The water is softened, and sodium hexametaphosphate is added as a water softener to remove the water-soluble complexes formed by calcium and magnesium ions in the water.

[0042] Then prepare the modified sodium alginate paste as follows:

[0043] S1. Stir 35 kg of sodium alginate, 100 kg of cross-linked carboxymethyl starch, 5 kg of sodium bicarbonate, 15 kg of carboxymethyl cellulose, 8 kg of sodium...

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Abstract

The invention discloses a modified sodium alginate paste material, and relates to the technical field of printing and dyeing, wherein the modified sodium alginate paste material includes the followingingredients in parts by weight: 25-35 parts of sodium alginate, 75-100 parts of crosslinked carboxymethyl starch, 5-10 parts of urea, 3-5 parts of sodium hydrogen carbonate, 10-12 parts of guar gum,8-10 parts of bentonite, 12-15 parts of carboxymethylcellulose, 5-8 parts of sodium polyacrylate, 5-8 parts of a mildew-proof antibacterial agent, and the balance water. The modified sodium alginate paste material can improve the storage stability and increase a printing quality.

Description

technical field [0001] The invention relates to the technical field of printing and dyeing, in particular to a modified sodium alginate paste and a preparation method thereof. Background technique [0002] There are two main methods of fabric printing and dyeing, one is traditional paint printing and dyeing, and the other is reactive printing and dyeing as opposed to paint printing and dyeing. Reactive printing and dyeing means that no azo and formaldehyde are added during the printing and dyeing process, and it does not contain harmful substances to the human body, and it does not fade when washed. The difference between reactive printing and dyeing is that reactive printing feels smooth and soft, and the effect of printing and dyeing is very good from both sides; while pigment printing fabrics feel stiff and look a bit like ink painting; therefore, reactive printing is becoming more and more popular. The more highly respected by manufacturers. [0003] At present, most o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/48D06P1/50D06P1/649D06P1/673D06P1/52D06P1/44C08B31/12
Inventor 金莉芬周红明金骥成
Owner 苏州天亦辰针织有限公司
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