Preparation method for hydrophilic dye-fixing agent for reactive dyeing

A technology of reactive dyes and color-fixing agents, applied in dyeing, textiles and papermaking, etc., can solve problems such as poor color fixing effect, lack of hygroscopicity, non-absorbency, etc., achieve excellent color fixing effect, and improve wet friction Effect of fastness and color change

Active Publication Date: 2015-01-28
SHANGHAI ARGUS NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The application practice of printing and dyeing factories shows that these so-called hydrophilic color-fixing agents either have good color-fixing effects, but after color-fixing, the hydrophilicity of cotton fabrics will decrease, which cannot reach the state's hygroscopicity within 5 seconds.
Either the hydrophilicity meets the requirements but the color fixing effect is not good, that is, to reduce the color fixing effect to achieve the moisture absorption without affecting the cotton fabric itself
None of these hydrophilic color-fixing agents can meet the requirements of color-fixing effect and not affecting the hygroscopicity of cotton fabrics at the same time, so they are not really hydrophilic color-fixing agents
However, there are few reports on the literature and patents on the study of hydrophilic color-fixing agents.

Method used

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  • Preparation method for hydrophilic dye-fixing agent for reactive dyeing
  • Preparation method for hydrophilic dye-fixing agent for reactive dyeing

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preparation example Construction

[0011] In a preferred embodiment, the preparation method of reactive dye dyeing hydrophilic color-fixing agent of the present invention comprises:

[0012] (1) Provide polymerized monomers, which include 75-85% of amine monomers, 10-20% of vinylpyridine and 2-5% of (meth)acrylic acid based on the total mass of monomers Class monomer;

[0013] (2) polymerizing amine monomers and (meth)acrylic monomers at a temperature of 50-85° C. in the presence of a mixture of free radical initiators and optional co-initiators,

[0014] (3) Add vinylpyridine to the reaction product of step (2) at a temperature of 55-85° C., and continue the polymerization reaction to obtain the hydrophilic color-fixing agent.

[0015] In some preferred embodiments, the amine monomers include but are not limited to aminoethylpiperazine (AEP), triethylenetetramine (TETA), tetraethylenepentamine (TEPA), ethyleneimine, propyleneimine , one or a combination of diallylamine hydrochloride and triallylamine hydroch...

Embodiment 1

[0045] Mix 80g of aminoethylpiperazine, 100g of triallylamine hydrochloride, 10g of acrylic acid, 50g of ethanol, and 700g of water at room temperature, heat to 35°C and keep it for 15 minutes, continue to heat up to 60°C, and keep the temperature for 15 minutes. Start to add ammonium persulfate solution (0.9g ammonium persulfate dissolved in 18g water) and polyamide-amine solution (0.25g PAMAM-G2 dissolved in 12g water) dropwise at the same time, and add 30g 2-vinylpyridine after 15 minutes. The dropping time of the ammonium persulfate solution and the polyamide-amine solution is about 2.0 hours each, and the dropping is completed substantially at the same time. The temperature was raised to 80°C, and the reaction was kept for 3 hours. Lower the temperature and discharge the material to obtain a light yellow transparent liquid, which is the hydrophilic color fixing agent.

[0046] The application results of color fixing performance, hydrophilicity and hand feeling are shown ...

Embodiment 2

[0048] Mix 50g of aminoethylpiperazine, 45g of propyleneimine, 110g of diallylamine hydrochloride, 10g of methacrylic acid, 30g of ethanol, and 700g of water at room temperature, heat to 35°C and keep it for 15min, then continue to heat up to 55°C ℃, keep the temperature for 15min. Start to add potassium persulfate solution (0.8g potassium persulfate dissolved in 18g water) and polyamide-amine solution (0.2g PAMAM-G3 dissolved in 12g water) dropwise at the same time, and add 25g 2-vinylpyridine after 15 minutes. The dropwise addition time of the potassium persulfate solution and the polyamide-amine solution is about 2.5 hours each, and the dropwise addition ends substantially at the same time. The temperature was raised to 70°C, and the reaction was kept for 4 hours. Lower the temperature and discharge the material to obtain a light yellow transparent liquid, which is the hydrophilic color fixing agent. The application results of color fixing performance, hydrophilicity and ...

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Abstract

The invention relates to a preparation method for a hydrophilic dye-fixing agent for reactive dyeing. According to the method, vinylpyridine, amine monomers and acrylate monomers have a polymerization reaction when radical initiators and assisting initiators exist, and the hydrophilic dye-fixing agent is obtained. The hydrophilic dye-fixing agent prepared with the method has an excellent dye-fixing effect, meanwhile, the hygroscopicity and the hydrophilia of cotton fabric are not affected, and a good hand feeling is achieved.

Description

technical field [0001] The invention relates to a preparation method of a hydrophilic color-fixing agent, in particular to a preparation method of a hydrophilic color-fixing agent for reactive dye dyeing. technical background [0002] Reactive dye fixing agent for cotton, polycationic color fixing agent is mainly used in the market at present. Polycationic color fixing agent has good color fixing effect, but due to its high-temperature film-forming cross-linking characteristics, the hydrophilicity of cotton fabric will be deteriorated after color fixing, or the fabric will become hard and feel bad. Especially cheese and terry fabrics, the hygroscopicity of cotton fabric itself becomes worse after being fixed by traditional polycationic color fixing agent. After the towel is fixed, even if it is treated with a hydrophilic softener, it cannot achieve a good hydrophilic effect; and in the cheese dyeing process, there are also problems such as poor sizing effect due to poor hyd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P5/08D06P1/38D06P3/66C08F226/02C08F220/06C08F226/06
Inventor 张春梅李正雄顾喆栋
Owner SHANGHAI ARGUS NEW MATERIAL CO LTD
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