Fabric finishing resin and preparation method thereof
A technology for fabric finishing and resin, applied in the field of fabric finishing resin and its preparation, can solve the problems of excessive use of dialdehyde, affecting the whiteness of the fabric, and low non-iron performance of the fabric, and achieves high non-iron level, low degree of yellowing, Inexpensive effect
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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 11.2g of 50% ...
Embodiment 3
[0041] Embodiment 3, concrete steps are as follows:
[0042] 1) Add 150g glycolamide, 145g glyoxal (commercially available, mass fraction 40%) and 75g water in a round bottom flask equipped with a mechanical stirrer and a reflux condenser, heat and maintain the system temperature at 60°C for 3.5 hours , need to use 19.6g potassium hydroxide aqueous solution (mass fraction is 20%) to adjust and maintain system pH in 7.5~8 in this process;
[0043] 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;
[0044] 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;
[0045] 3) After th...
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