Anti-precipitant and its preparation method

An anti-precipitation agent and solvent technology, applied in the direction of dyeing, textiles and papermaking, can solve the problems of increasing the complexity of the dyeing process, reducing the dyeing effect of fabrics, easy to produce color spots and color stains, etc., to solve the problems of uneven dyeing, Simple and easy process, low equipment requirements

Active Publication Date: 2012-08-08
JIANGSU NEW REBA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is very easy to produce color spots and stains when dyeing with anion / cation dyes in the same bath (i.e., anion / cation one-bath one-step method). Moreover, once color spots and stains are produced, it is difficult to repair. There are problems such as uneven dyeing and low dyeing rate
[0004] Therefore, in view of the above problems, it is necessary to prevent the combination of anion / cation dyes, and there is no substance that can prevent the combination of anion / cation dyes, and there is no one that can guarantee the dyeing rate from the perspective of dispersion and level dyeing. Under the premise of preventing the combination of anionic / cationic dyes, the complexity of the dyeing process is increased and the dyeing effect of the fabric is reduced.

Method used

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  • Anti-precipitant and its preparation method
  • Anti-precipitant and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The anti-precipitation agent in this embodiment includes 30g methyl terephthalate, 25g decanyl alcohol polyoxyethylene ether, 35g sodium lauryl sulfate and 10g isopropanol.

[0020] The preparation method of the anti-sedimentation agent in the present embodiment is as follows: add 30g methyl terephthalate, 25g dedecyl alcohol polyoxyethylene ether and 35g lauryl to the reactor that agitator, thermometer and reflux condensation device are housed Sodium sulfate, then close the reactor and start stirring; heat at the same time, when heated to 60-65°C, keep warm, and stir for 15-20min; then cool down to below 40°C, then add 10g of isopropanol into the reactor and Stir for 10 minutes; then filter and discharge to prepare the anti-sedimentation agent, the performance of the anti-sedimentation agent is shown in Table 1.

[0021] The anti-precipitation agent in this embodiment is mainly used in the same-bath dyeing of anionic dyes and cationic dyes, which can achieve the purpos...

Embodiment 2

[0023] The anti-precipitation agent in the present embodiment includes 40g methylnaphthalene, 25g alkyl glucoside, 20g sodium dodecylbenzenesulfonate and 15g alcohol.

[0024] The preparation method of anti-precipitation agent in the present embodiment is as follows: add 40g methylnaphthalene, 25g alkyl glucoside and 20g sodium dodecylbenzene sulfonate to the reactor that stirrer, thermometer and reflux condensation device are housed, then airtight Reactor and start stirring; heat at the same time, when heated to 60-65°C, keep warm, and stir for 15-20min; then cool down to 40°C, then add 15g of alcohol into the reactor and stir for 10min; then filter and discharge , so as to prepare the anti-precipitation agent, the performance of the anti-precipitation agent is shown in Table 1.

[0025] The anti-precipitation agent in this embodiment is mainly used in the same-bath dyeing of anionic dyes and cationic dyes, which can achieve the purpose of preventing the combination of anioni...

Embodiment 3

[0027] The anti-precipitation agent in this embodiment includes 35g methyl salicylate, 30g alkyl glycoside, 20g quaternary ammonium salt and 15g isopropanol.

[0028] The preparation method of anti-precipitation agent in the present embodiment is as follows: add 35g methyl salicylate, 30g alkyl glucoside and 20g quaternary ammonium salt in the reaction kettle that stirrer, thermometer and reflux condensation device are housed, then airtight reaction kettle and Start stirring; heat at the same time, when heated to 65-70°C, keep warm, and stir for 20-30min; then cool down to 40°C, then add 15g of isopropanol into the reaction kettle and stir for 10min, then filter and discharge, Thereby making anti-sedimentation agent, the performance of this anti-sedimentation agent is shown in Table 1.

[0029] The anti-precipitation agent in this embodiment is mainly used in the same-bath dyeing of anionic dyes and cationic dyes, which can achieve the purpose of preventing the combination of ...

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Abstract

The invention relates to an anti-precipitant and its preparation method. There exists no substance which can prevent anionic dye / cationic dye from being combined on the basis of guaranteeing dye uptake from the perspective of dispersing and level dyeing. The anti-precipitant provided by the invention comprises: by weight, 25-75 parts of an aromatic compound, 20-60 parts of a nonionic surfactant, less than 30 parts of a solvent and less than 35 parts of an anionic surfactant or cationic surfactant. The preparation method comprises the following steps of: firstly pouring the aromatic compound, the nonionic surfactant and the anionic surfactant or cationic surfactant into a reaction vessel, heating to 60-80 DEG C, insulating and stirring for 10-30min, cooling to 35-45 DEG C, adding the solvent, stirring for 10-20min, and filtering to obtain the anti-precipitant. The anti-precipitant provided by the invention is environmentally friendly and can be used to prevent the combination of anionic dye / cationic dye. The preparation method is simple and feasible. The raw materials are easy to purchase. And equipment requirements are low.

Description

technical field [0001] The invention relates to an anti-precipitation agent and a preparation method thereof. The anti-precipitation agent is mainly used for dyeing with anionic dyes and cationic dyes in the same bath, can prevent anionic dyes and cationic dyes from combining, and prevent color points and stains during dyeing. Background technique [0002] Cationic dyes can dye the mixed fiber yarn or interwoven fabric of modified polyester and other fibers (including natural cellulose fiber, protein fiber and artificial fiber, etc.) through dyeing to obtain a fabric with a distinct imitation yarn-dyed effect. The surface of the fabric can present a very attractive "magic color" effect, and the fabric surface is plump and soft, and the fabric has good drapability, so it can expand market share and increase sales, and is well received by consumers. In addition, due to the wide color spectrum, bright color and low price of cationic dyes, more and more manufacturers have develo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/613D06P1/62D06P1/651D06P1/66D06P1/645D06P1/642
Inventor 姚庆才邱宝花陈小利
Owner JIANGSU NEW REBA TECH CO LTD
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