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Fluoride-free waterproof finishing emulsion for textiles and application of fluoride-free waterproof finishing emulsion

A fluorine-free waterproof and emulsion technology, applied in fiber processing, textiles and papermaking, and liquid repellent fibers, etc., can solve the problem of product water resistance decline and so on

Active Publication Date: 2018-05-01
SHENYANG RES INST OF CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] For environmental protection and convenience of operation, fabric waterproofing agents are usually processed into water emulsions, which requires the introduction of hydrophilic groups into the structure of the waterproofing agent or the use of additional hydrophilic emulsifiers, resulting in the final product water resistance drops

Method used

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  • Fluoride-free waterproof finishing emulsion for textiles and application of fluoride-free waterproof finishing emulsion
  • Fluoride-free waterproof finishing emulsion for textiles and application of fluoride-free waterproof finishing emulsion
  • Fluoride-free waterproof finishing emulsion for textiles and application of fluoride-free waterproof finishing emulsion

Examples

Experimental program
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Effect test

Embodiment 1

[0067] Synthesis of component a1: Put 39g, 0.1mol of hexamethoxymethylene melamine and 162g, 0.6mol of stearyl alcohol into a 500mL four-neck flask, heat to melt the materials, then add 0.4g of concentrated hydrochloric acid, and continue to heat up to 90°C . When the system began to reflux, the methanol was evaporated under vacuum. After reacting at 90°C for 1.5h, the temperature was raised to 140°C for 2 hours. The product was a colorless and transparent viscous substance, which became a waxy solid after cooling.

Embodiment 2

[0069] Synthesis of component a2: Put 39g, 0.1mol of hexamethoxymethylene melamine and 170g, 0.6mol of octadecanoic acid into a 500mL four-neck flask, heat to melt the materials, then add 0.4g of concentrated hydrochloric acid, and continue to heat up to 90°C . When the system began to reflux, the methanol was evaporated under vacuum. After reacting at 90°C for 1.5h, the temperature was raised to 140°C for 2 hours. The product was a colorless and transparent viscous substance, which became a waxy solid after cooling.

Embodiment 3

[0071] Synthesis of component a3: Put 39g, 0.1mol of hexamethoxymethylene melamine and 188g, 0.6mol of stearyl alcohol into a 500mL four-neck flask, heat to melt the materials, then add 0.4g of concentrated hydrochloric acid, and continue to heat up to 90°C . When the system starts to reflux, add vacuum to distill methanol, and pay attention to controlling the vacuum degree to prevent material flushing. After reacting at 90°C for 1.5h, the temperature was raised to 140°C for 2 hours. The product was a light yellow transparent viscous substance, which became a waxy solid after cooling.

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Abstract

The invention relates to a waterproof agent for textiles, and particularly relates to a fluoride-free waterproof finishing emulsion for textiles and application of the fluoride-free waterproof finishing emulsion. The fluoride-free waterproof finishing emulsion is prepared from the following components in parts by weight (dry component): a) 80-40 parts of long carbon chain-modified amino resin, b)1-8 parts of cation-modified long carbon chain amino resin, c) 1-10 parts of a metal complex of long carbon chain carboxylic acid, d) 10-55 parts of wax, e) 0.05-3 parts of a cationic emulsifier, f) 0.01-2 parts of a nonionic emulsifier and g) 0.001-1.5 parts of organic acid or inorganic acid. The waterproof agent provided by the invention is suitable for waterproof finishing of dacron, cotton, ester, artificial boards or papermaking and various blended fabrics, and has excellent waterproof performance.

Description

field of invention [0001] The invention relates to a fabric waterproofing agent, in particular to a fluorine-free waterproof finishing emulsion for fabrics and its application. Background technique [0002] Fabric waterproofing agents are usually organic fluorides, silicones, melamine resins, waxes, polyurethanes, pyridinium salts, etc. Among them, organic fluorine compounds have the best effect, which can prevent water, oil and dirt. However, due to the very stable properties of PFOS and PFOA, perfluorooctane sulfonate and PFOA are difficult to degrade, have high bioaccumulation, and are harmful to organisms. The European Union has legislated to gradually ban PFOA and its salts, and will completely ban the use of PFOA and substances containing PFOA in its degradation products in July 2020. Other types of waterproofing agents are not as waterproof as organic fluorides, but their advantages lie in their high safety and environmental protection. For example, silicone-based ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/372D06M13/463D06M13/02D06M13/188D06M15/423
CPCD06M13/02D06M13/188D06M13/372D06M13/463D06M15/423D06M2200/12
Inventor 鲁琴王新付洪娥王玉灿刘博吴井龙
Owner SHENYANG RES INST OF CHEM IND
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