Cotton fabric durable hydrophobic finishing method

A cotton fabric, durable technology, applied in fiber processing, plant fiber, textiles and papermaking, etc., can solve the problems of unfriendly production conditions, long production cycle, poor durability, etc. simple effect

Active Publication Date: 2016-07-20
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a durable hydrophobic finishing method for cotton fabrics, which solves the problems of unen

Method used

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  • Cotton fabric durable hydrophobic finishing method
  • Cotton fabric durable hydrophobic finishing method
  • Cotton fabric durable hydrophobic finishing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Step 1: padding cellulose acetoacetate aqueous solution: wash the ordinary cotton fabric with deionized water and ethanol in turn to remove the dirt attached to the cotton fabric, and wash the clean cotton fabric with a concentration of 5 mg / mL cellulose acetoacetate One-dipping and one-rolling finishing in the ester aqueous solution, the rolling rate is 80%, and then pre-baked at 60°C for 3 minutes.

[0032] Step 2: Ethanol dispersion of low surface energy compounds, crosslinking agents and nanoparticles by padding: Cotton fabrics pretreated with cellulose acetoacetate were treated with stearyl primary amine, aminosilane coupling at a concentration of 100 mg / mL. The combination agent KH550 and silicon dioxide nanoparticles (about 40nm in particle size) in the ethanol dispersion are subjected to one-dipping and one-rolling finishing, and the spare rate is 80%. Octadecyl primary amine accounted for 3% of the mass fraction of the dispersion, aminosilane coupling agent KH5...

Embodiment 2

[0038] Step 1: padding cellulose acetoacetate aqueous solution: wash the ordinary cotton fabric with deionized water and ethanol in turn to remove the dirt attached to the cotton fabric, and wash the clean cotton fabric with a concentration of 5 mg / mL cellulose acetoacetate One-dipping and one-rolling finishing in the ester aqueous solution, the rolling rate is 80%, and then pre-baked at 60°C for 3 minutes.

[0039]Step 2: Ethanol dispersion of low surface energy compounds, cross-linking agents and nanoparticles by padding: Cotton fabrics pretreated with cellulose acetoacetate were treated with stearyl primary amine, aminosilane coupling at a concentration of 150 mg / mL. The combination agent KH550 and silicon dioxide nanoparticles (about 40nm in particle size) in the ethanol dispersion are subjected to one-dipping and one-rolling finishing, and the spare rate is 80%. The long-chain alkyl primary amine accounts for 3% of the mass fraction of the dispersion, the aminosilane coup...

Embodiment 3

[0042] Step 1: padding cellulose acetoacetate aqueous solution: wash the ordinary cotton fabric with deionized water and ethanol in turn to remove the dirt attached to the cotton fabric, and clean the cotton fabric with a concentration of 5 mg / mL cellulose acetoacetate One-dipping and one-rolling finishing in the ester aqueous solution, the rolling rate is 80%, and then pre-baked at 60°C for 3 minutes.

[0043] Step 2: Ethanol dispersion of low surface energy compounds, cross-linking agents and nanoparticles by padding: Cotton fabrics pretreated with cellulose acetoacetate were treated with stearyl primary amine, aminosilane coupling at a concentration of 150 mg / mL. The combination agent KH550 and the ethanol dispersion of silicon dioxide nanoparticles (about 450nm in particle size) are subjected to one-dipping and one-rolling finishing, and the spare rate is 80%. The long-chain alkyl primary amine accounts for 3% of the mass fraction of the dispersion, the aminosilane couplin...

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Abstract

The invention relates to a cotton fabric durable hydrophobic finishing method.The method comprises the steps that a cotton fabric is preprocessed, then, padding finishing is performed in an acetoacetic ester-based modified natural polymer water solution, and then pre-baking processing is performed; the pre-baked cotton fabric is subjected to padding finishing in a dispersion solution containing a low-surface-energy compound, a crosslinking agent and micro-nano particles, and then drying is performed to obtain the durable hydrophobic cotton fabric.According to the method, the traditional padding technology is adopted, operation is easy, consumed time is short, high-temperature baking is not needed, the product uniformity and reproducibility are good, and popularization is convenient; the obtained cotton fabric is repeatedly washed with soap, and the cotton fabric still has the excellent hydrophobic performance.

Description

technical field [0001] The invention belongs to the field of functional textiles, in particular to a durable hydrophobic finishing method for cotton fabrics. Background technique [0002] Hydrophobic textiles can be used in a wide range of markets including industrial, consumer and apparel. At present, most of its hydrophobic surfaces are obtained by fluoride coating, but the use of fluorine-containing compounds has potential environmental and physical hazards. Therefore, it is necessary to develop biodegradable Green and environment-friendly hydrophobic finishing agent. In addition, another key factor affecting the wide application of fluorine-free hydrophobic finishing agents is the poor durability of the hydrophobic surface of the finished fabric. Most literature reports use inorganic nanoparticles such as silica and titanium dioxide to construct rough structures, and then graft low surface energy compounds on the surface of substrates by chemical surface modification m...

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): D06M15/07D06M13/328D06M13/513D06M11/79D06M101/06
CPCD06M11/79D06M13/328D06M13/513D06M15/07D06M2101/06
Inventor 毛志平刘伶俐隋晓锋钟毅徐红张琳萍
Owner DONGHUA UNIV
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