Low-temperature soaping agent and preparation method thereof

A low-temperature soap and lotion technology, which is applied in the field of textile printing and dyeing, can solve the problems of difficult cleaning, the influence of shade on dyed fabrics, complex processes, etc., and achieve the effects of excellent hard water resistance, excellent anti-staining performance, and good chelating performance

Inactive Publication Date: 2013-03-27
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Patent CN102093508A discloses a low-temperature non-foaming soaping agent and its preparation method. The molecular structure of the polymer compound is relatively large, and it is difficult to clean the hydrolyzed dye inside the fabric. The synthesis conditions are relatively high, the process is complicated, and the product is resistant to hard water. There are still defects

Method used

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  • Low-temperature soaping agent and preparation method thereof
  • Low-temperature soaping agent and preparation method thereof
  • Low-temperature soaping agent and preparation method thereof

Examples

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Effect test

Embodiment 1

[0031] A kind of preparation method of low-temperature soaping agent, comprises the steps:

[0032] (1) Preparation of anionic-nonionic surfactant: Steareth and dicarboxylic acid (maleic anhydride) are added into the reactor at a molar ratio of 2:1.2, heated to 100°C, reacted for 0.5 hours, added Catalyst, be warming up to 200 ℃, react 5 hours, obtain intermediate stearyl maleic acid diester; Add 5wt% fumaric acid in intermediate steareth maleic acid diester, cool down to 100 ℃, add initiator 0.5wt%, heat preservation reaction for 8 hours, get anion-nonionic surfactant;

[0033] (2) Composite: add the anion-nonionic surfactant 40wt% that step (1) makes once in reactor, 5wt% steareth, 8wt% sodium carboxymethylcellulose (CMC), 1wt% polyvinylpyrrolidone PVP, 2wt% polyacrylic acid sodium (PAAS), 15wt% triethanolamine (TEA) and 30wt% deionized water, stirred evenly, and discharged to obtain a low-temperature soaping agent.

Embodiment 2

[0035] A kind of preparation method of low-temperature soaping agent, comprises the steps:

[0036] (1) Preparation of anionic-nonionic surfactant: Steareth and dibasic carboxylic acid (maleic anhydride) are added into the reactor at a molar ratio of 2:1, heated to 90°C, reacted for 1 hour, added Catalyst, be warming up to 220 ℃, react for 6 hours, get intermediate stearyl maleic acid diester; Add 8wt% fumaric acid in intermediate steareth maleic acid diester, cool down to 105 ℃, add initiator 2wt%, heat preservation reaction for 10 hours, get anion-nonionic surfactant;

[0037] (2) Composite: add the anion-nonionic surfactant 20wt% that step (1) makes once in reactor, 5wt% steareth, 5wt% sodium carboxymethylcellulose (CMC), 1% polyvinylpyrrolidone (PVP), 1wt% polyacrylic acid sodium (PAAS), 10wt% triethanolamine (TEA) and 58wt% deionized water, stirred evenly, and discharged to obtain a low-temperature soaping agent.

Embodiment 3

[0039] A kind of preparation method of low-temperature soaping agent, comprises the steps:

[0040] (1) Preparation of anionic-nonionic surfactant: Steareth and dibasic carboxylic acid (maleic anhydride) are added to the reactor at a molar ratio of 2:0.9, heated to 120°C, reacted for 0.5 hours, added Catalyst, be warming up to 190 ℃, react for 6 hours, get the intermediate steareth maleic acid diester; Add the fumaric acid of 10wt% in the intermediate steareth maleic acid diester, cool down to 95 ℃, add 0.5-5wt% initiator, and keep warm for 12 hours to obtain anion-nonionic surfactant;

[0041] (2) Composite: add the anion-nonionic surfactant 25wt% that step (1) makes once in reactor, 6wt% steareth, 4wt% sodium carboxymethylcellulose (CMC), 4wt% polyvinylpyrrolidone (PVP), 2wt% sodium polyacrylate (PAAS), 8wt% triethanolamine (TEA) and 51wt% deionized water, stirred evenly, and discharged to obtain a low-temperature soaping agent.

[0042] Take the soaping agent in Embodimen...

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Abstract

The invention discloses a low-temperature soaping agent for reactive dyes, belonging to the soaping process of the printing and dyeing industry. The low-temperature soaping agent is formed by compounding high-efficiency surfactant and auxiliaries, and comprises the following components in percentage by weight: 5-20wt% of stearyl alcohol polyether, 10-60wt% of anion- nonionic surfactant, 1-10wt% of sodium carboxymethyl cellulose (CMC), 0.1-5wt% of polyvinylpyrrolidone (PVP), 0.1-5wt% of sodium polyacrylate (PAAS), 1-20wt% of triethanolamine (TEA), and the balance being water. The soaping agent is free of phosphor, alkylphenol polyoxyethylene ether and harmful solvent, can be biodegradable, has low foaming performance and self-chelating performance, is used for soaping reactive dyes after dyeing, has a good soaping effect at a soaping temperature of 60 DEG C, and can save energy and reduce consumption.

Description

technical field [0001] The invention relates to the technical field of textile printing and dyeing, in particular to a low-temperature soaping agent for textile dyeing and soaping and a preparation method thereof. technical background [0002] Reactive dyes have the characteristics of complete color spectrum, bright color, low cost, simple dyeing process, and can form covalent bonds with various fibers. More than 80% of cellulose fibers are dyed and printed with reactive dyes. However, reactive dyes cannot fully react with cellulose fibers during the dyeing process, generally at 60%-70%, and while dyeing and fixing the fibers, the dyes will also be hydrolyzed. These unfixed dyes and hydrolyzed dyes have very similar diffusion and adsorption properties to the original reactive dyes, so they are easy to attach to the fiber surface and diffuse into the fiber. In the case of alkaline agent and certain temperature and pressure, these unfixed dyes and hydrolyzed dyes (floating co...

Claims

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Application Information

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IPC IPC(8): C11D1/83C11D3/60C11D3/37
Inventor 黄丹顾义师赵昱甄莉莉
Owner JIANGNAN UNIV
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