A kind of preparation method of environment-friendly acid dye fixing agent

A technology of acid dyes and color-fixing agents, which can be used in dyeing, textiles, and papermaking. It can solve the problems that silk fabrics do not have color-fixing effects, the process conditions are not easy to control, and the production process is long, and achieve good color-fixing effects. , Process conditions are easy to control, and the production process is short

Active Publication Date: 2015-11-11
GUANGDONG ZHAN FENG FINE CHEM CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] The currently developed color fixing agent synthetic raw materials and synthetic process may contain harmful substances such as formaldehyde, and formaldehyde may also be produced during use, and the production process is long, the process conditions are not easy to control, and the treated silk fabric does not have good properties. Color fixing effect, easy to fade after washing, and has a greater impact on the hand feel

Method used

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Embodiment Construction

[0013] The present invention will be described in detail below in conjunction with embodiments.

[0014] A preparation method of an environment-friendly acid dye fixing agent, comprising the following steps:

[0015] Step 1) Add 1.5 parts of dimethylamine aqueous solution into the four-necked reaction flask, pass through the nitrogen protection, start stirring and raise the temperature to 30°C, start to add the epichlorohydrin solution dropwise, finish the drop within 1h, and control the temperature at 55°C ~60°C, keep warm for 2 hours after adding epichlorohydrin;

[0016] Step 2) Add 1.5 parts of butyl acrylate and 0.1 part of 30% potassium persulfate solution dropwise, drop it over in 1 hour, control the temperature at 80±3°C, and react for another 3 hours; add 1 part of methacrylic acid solution dropwise, drop it over in 1 hour, React at 85±3°C for 3 hours, cool to room temperature, adjust the pH to 5-6 with acetic acid, and finally obtain a light yellow transparent liqui...

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Abstract

The invention discloses a preparation method of an environment-friendly acidic dye fixing agent. The method comprises the steps that: 1.5 parts of a dimethylamine aqueous solution is added into a four-neck reaction flask; nitrogen is delivered in for protection; stirring is started, and the temperature is increased to 30 DEG C; an epichlorohydrin solution is started to be dropped; dropping is finished within 1h, and the temperature is controlled at 55-60 DEG C; when epichlorohydrin adding is finished, a reaction is allowed for 2h under maintained temperature; 1.5 parts of butyl acrylate and 0.1 parts of a 30% potassium persulfate solution are dropped within 1h; the temperature is controlled at 80 (+ / - 3) DEG C, and a reaction is allowed for 3h; 1 part of a methacrylic acid solution is dropped within 1h; a reaction is allowed for 3h under a temperature of 85 (+ / -3) DEG C; the product is cooled to room temperature; and the pH value is regulated to 5-6 by using acetic acid, such that a light yellow transparent liquid is obtained. With the technical scheme provided by the invention, the process is easy to apply in production. After treatment, silk fabric has good color fixing effect, and is prevented from fading after washing.

Description

technical field [0001] The invention relates to a preparation method of a dye fixing agent, in particular to a preparation method of an environment-friendly acid dye fixing agent. Background technique [0002] The currently developed color-fixing agent synthetic raw materials and synthetic process may contain harmful substances such as formaldehyde, and formaldehyde may also be produced during use, and the production process is long, the process conditions are not easy to control, and the treated silk fabric does not have good properties. Color fixing effect, easy to fade after washing, and has a greater impact on the hand feel. Contents of the invention [0003] The purpose of the present invention is to overcome the problems existing in the prior art and provide a preparation method of an environment-friendly acid dye fixing agent. [0004] In order to achieve the above-mentioned technical purpose and achieve the above-mentioned technical effect, the present invention i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/10C08F220/18C08F220/06C08G59/10D06P5/08D06P3/06
Inventor 许磊
Owner GUANGDONG ZHAN FENG FINE CHEM CO LTD
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