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Preparation method of reactive dye dyeing hydrophilic color-fixing agent

A technology of reactive dyes and color-fixing agents, which is applied in dyeing, textiles and papermaking, can solve problems such as poor color fixing effect, failure to achieve hygroscopicity, and decreased hydrophilicity of cotton fabrics, so as to improve wet rubbing fastness. High degree, small color change, excellent color fixing effect

Active Publication Date: 2016-05-11
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 of reactive dye dyeing hydrophilic color-fixing agent
  • Preparation method of reactive dye dyeing hydrophilic color-fixing agent

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preparation example Construction

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

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

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

[0014] (3) Vinylpyridine is added to the reaction product of step (2) at a temperature of 55-85°C, and the polymerization reaction is continued to obtain the hydrophilic 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 hydroc...

Embodiment 1

[0045] At room temperature, 80g aminoethylpiperazine, 100g triallylamine hydrochloride, 10g acrylic acid, 50g ethanol, 700g water are mixed uniformly, heated to 35°C and kept for 15min, continue to increase to 60°C, and keep the temperature for 15min. At the beginning, ammonium persulfate solution (0.9g ammonium persulfate dissolved in 18g water) and polyamide-amine solution (0.25g PAMAM-G2 dissolved in 12g water) were added dropwise at the same time, and 30g 2-vinylpyridine was added 15 minutes later. The dripping time of the ammonium persulfate solution and the polyamide-amine solution was about 2.0 h each, and the dripping was completed at the same time. The temperature was raised to 80°C, and the reaction was kept for 3 hours. Cooling, discharging, a light yellow transparent liquid is prepared, which is a hydrophilic fixing agent.

[0046] The application results of fixing performance, hydrophilicity and hand feeling are shown in Table 1.

Embodiment 2

[0048] Mix 50g aminoethylpiperazine, 45g propylene imine, 110g diallylamine hydrochloride, 10g methacrylic acid, 30g ethanol, 700g water at room temperature, heat to 35℃ and keep it for 15min, continue to heat up to 55 ℃, keep the temperature for 15 min. At the beginning, potassium persulfate solution (0.8g potassium persulfate dissolved in 18g water) and polyamide-amine solution (0.2g PAMAM-G3 dissolved in 12g water) were added dropwise at the same time. After 15 minutes, 25g 2-vinylpyridine was added. The dripping time of the potassium persulfate solution and the polyamide-amine solution is about 2.5 hours each, and the dripping ends at the same time. The temperature was raised to 70°C, and the reaction was kept for 4 hours. Cooling, discharging, a light yellow transparent liquid is prepared, which is a hydrophilic fixing agent. The application results of fixing performance, hydrophilicity and hand feeling are shown in Table 1.

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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 fixing agent, in particular to a preparation method of a reactive dye dyeing hydrophilic fixing agent. technical background [0002] Reactive dye fixing agent for cotton, currently mainly used in the market is polycationic fixing agent. The polycationic fixing agent has a good fixing effect, but due to its high-temperature film-forming cross-linking characteristics, the hydrophilicity of the cotton fabric becomes worse after fixing, or the fabric becomes hard and the hand feel is not good. Especially for cheese and towel fabrics, the moisture absorption of cotton fabric itself becomes poor after fixing with traditional polycationic fixing agent. After the towel is fixed, even if it is finished with a hydrophilic softener, it cannot achieve a good hydrophilic effect. In the cheese dyeing process, there are also problems such as poor sizing effect due to poor hydrophilicity after the fixing treat...

Claims

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Application Information

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Patent Type & Authority Patents(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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