Textile finishing resin and preparation method thereof

A technology of fabric finishing and resin, which is applied in the field of fabric finishing resin and its preparation, can solve the problems of low non-ironing properties of fabrics, affecting fabric whiteness, excessive use of dialdehyde, etc., and achieve high non-ironing level, low yellowing degree, cheap effect

Active Publication Date: 2017-05-10
ZIBO LURUI FINE CHEM CO LTD
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Problems solved by technology

In "Synthesis method of non-iron finishing resin for formaldehyde-free textiles" (Chinese invention patent CN101434685), a method of using urea-based compounds and glyoxal to synthesize non-ironing resin is disclosed. Although there is no formaldehyde residue in the fabric, after using the resin The non-ironing properties of fabrics are low; in "A formaldehyde-free durable non-ironing resin, preparation method and application" (Chinese invention patent CN103387647), the author uses glyoxal and other dialdehydes instead of formaldehyde to prepare formaldehyde-free, High non-ironing effect resin product, but the dialdehyde used in this product is excessive, and it is easy to form macromolecules, which seriously affects the whiteness of the fabric

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Textile finishing resin and preparation method thereof
  • Textile finishing resin and preparation method thereof
  • Textile finishing resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1, concrete steps are as follows:

[0026] 1) Add 150g of glycolamide, 145g of glyoxal and 75g of water with a mass fraction of 40% in a round-bottomed flask equipped with a mechanical stirrer and a reflux condenser, heat and maintain the mixture at a temperature of 50°C for 3 hours, during which Use 37g mass fraction as 20% aqueous solution of sodium carbonate pentahydrate to adjust and maintain the pH of the mixed solution at 7.5;

[0027] 2) Use 7.1 g of 50% sulfuric acid aqueous solution to adjust the pH of the mixture to 5, and react at 40° C. for 3 hours;

[0028] 3) After the reaction is completed, the temperature of the mixed solution is cooled to 30°C, and the mixture is distilled under reduced pressure while stirring. The vacuum pressure is -0.1MPa. The mixed solution is heated and kept at 47°C, and condensate flows out. When no liquid flows out from the condenser Stop heating and vacuuming, let stand and cool to 40°C;

[0029] 4) Use 5.8 g of sul...

Embodiment 2

[0033] Embodiment 2, concrete steps are as follows:

[0034] 1) Add 150g of glycolamide, 200g of glutaraldehyde and 75g of water with a mass fraction of 50% in a round-bottomed flask equipped with a mechanical stirrer and a reflux condenser, heat and maintain the mixture at a temperature of 70°C for 4 hours, during which Use 14g mass fraction of 20% sodium hydroxide aqueous solution to adjust and maintain the pH of the mixed solution at 7.5;

[0035] 2) Use 14.0 g of 50% toluenesulfonic acid aqueous solution to adjust the pH of the mixture to 5, and react at 50° C. for 3 hours;

[0036] 3) After the reaction is completed, the temperature of the mixed solution is cooled to 30°C, and the mixture is distilled under reduced pressure while stirring. The vacuum pressure is -0.1MPa. The mixed solution is heated and kept at 47°C, and condensate flows out. When no liquid flows out from the condenser Stop heating and vacuuming, let stand and cool to 40°C;

[0037] 4) Use 11.2 g of 50%...

Embodiment 3

[0041] Embodiment 3, concrete steps are as follows:

[0042] 1) add 150g glycolamide, 145g glyoxal (market

[0043] sale, mass fraction 40%) and 75g water, heating and maintaining 60 ℃ of system temperature reaction 3.5 hours, need in the process

[0044] Use 19.6g potassium hydroxide aqueous solution (mass fraction is 20%) to adjust and maintain the system pH at 7.5-8;;

[0045] 1) Add 150g of glycolamide, 145g of glyoxal and 75g of water with a mass fraction of 40% in a round bottom flask equipped with a mechanical stirrer and a reflux condenser, heat and maintain the temperature of the mixture at 60°C for 3.5 hours, during which Use 19.6g mass fraction of 20% potassium hydroxide aqueous solution to adjust and maintain the pH of the mixed solution at 8;

[0046] 2) Use 6.3 g of 50% phosphoric acid aqueous solution to adjust the pH of the mixture to 5, and react at 40° C. for 3.5 hours;

[0047] 3) After the reaction is completed, the temperature of the mixed solution is c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention provides textile finishing resin and a preparation method thereof. The structural formula of the textile finishing resin is as shown in the specification, wherein R1 is (CH2)n (n is equal to 0 or 3), and R2 is H, (CH2)n (n is equal to 1-3), or (CH2)mO(CH2)nH (m is equal to 1 or 2, and n is equal to 1 or 2). The preparation method comprises the following steps: glycolamide, dialdehyde and water are mixed, react for 3-5 hours under the conditions that the temperature is 50-70 DEG C and the pH value is 7.5-8, and then react for 3-5 hours under the conditions that the temperature is 30-60 DEG C and the pH value is 5-6.5, an alcohol compound is added after reduced pressure distillation, a reaction lasts for 3 hours under the conditions that the temperature is 40-50 DEG C and the pH value is 2.5-3, the pH value is adjusted to be 5.5-6.5 after the reaction is ended, and water is used for adjusting the solid content to obtain the textile finishing resin. According to the method, formaldehyde is not used as a raw material, which meets relevant standards and environmental protection requirements; used raw materials are simple, easy to obtain and cheap; in addition, after being applied to non-iron finishing of cotton fabrics, the resin prepared with the method reaches high non-iron level and low yellowing degree.

Description

technical field [0001] The invention belongs to the technical field of finishing agents for dyeing and finishing industrial cotton fabrics, and in particular relates to a fabric finishing resin and a preparation method thereof. [0002] technical background [0003] The non-iron finishing of cotton fiber endows the fabric with anti-wrinkle performance and significantly improves the product quality. At present, dimethylol dihydroxyethylene urea (2D resin) is often used as a finishing agent for non-ironing finishing. Although this product has the advantages of low price and good non-ironing performance, the raw material formaldehyde used in it often has residues, and contact with formaldehyde will cause Increase the risk of human cancer. Therefore, all countries in the world strictly limit the amount of formaldehyde released in fabrics, and my country has also made detailed regulations in the national standard GB 18401-2003 "National Basic Safety Technical Specifications for T...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D06M13/402C07C231/12C07C235/10D06M101/06
CPCC07C231/08C07C231/12D06M13/402D06M2101/06D06M2200/20D06M2200/25C07C235/10
Inventor 张怀迁王杨王方水任纪忠
Owner ZIBO LURUI FINE CHEM CO LTD
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