Arranging method of single-faced super-hydrophobic cotton fabrics

A cotton fabric, single-sided technology, applied in the field of preparation of single-sided superhydrophobic cotton fabric, can solve the problems of single-sided superhydrophobic finishing, unevenness, high hygroscopicity, etc., and achieve good application prospects, less water, The effect of reducing free energy

Active Publication Date: 2015-09-02
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the porous, uneven structure and high hygroscopicity of cotton fabrics, it is difficult to guarantee a single-sided superhydrophobic finish.

Method used

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  • Arranging method of single-faced super-hydrophobic cotton fabrics
  • Arranging method of single-faced super-hydrophobic cotton fabrics
  • Arranging method of single-faced super-hydrophobic cotton fabrics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The finishing method of the single-sided superhydrophobic cotton fabric of the present embodiment, the steps are as follows:

[0026] (1) Pre-condition the cotton fabric to control the moisture regain at 8±0.5%;

[0027] (2) Evenly mix 3wt% silica sol with pH=4.5, 2g / L sodium alkyl diphenyl ether disulfonate, 1g / L polyacrylamide stabilizer, and tap water, and stir at 3000 rpm at high speed to prepare foamed silicon Sol finishing agent;

[0028] (3) Mix 5wt% water-based fluorocarbon-modified polyacrylic acid, 2g / L ester-containing double root quaternary ammonium salt surfactant, 1g / L polyacrylamide stabilizer, and tap water, and stir at 3000 rpm Preparation of water-based fluorocarbon modified polyacrylic acid finishing agent;

[0029] (4) Fix the cotton fabric 6 on the metal roller collection device 5, inject the prepared silica sol foam finishing agent into the holding container 1, and control the extrusion amount of the foam 3 through the piston rod at the upper end...

Embodiment 2

[0032] The finishing method of the single-sided superhydrophobic cotton fabric of the present embodiment, the steps are as follows:

[0033] (1) Pre-condition the cotton fabric to control the moisture regain at 8±0.5%;

[0034] (2) Mix 3wt% silica sol with pH=3.5, 3g / L Gemini surfactant, 1g / L polyacrylamide stabilizer, and tap water evenly, and stir at 4000 rpm at high speed to prepare foam silica sol finishing agent;

[0035] (3) Mix 8 wt % water-based fluorocarbon modified polyacrylic acid, 3 g / L Gemini surfactant, 1 g / L polytween 80 stabilizer, and tap water, and stir at 4000 rpm to prepare water-based fluorocarbon modified polyacrylic acid. non-toxic polyacrylic acid finishing agent;

[0036] (4) Evenly scrape the prepared foam finishing agent on one side of the pre-conditioned cotton fabric, then steam it at 100°C for 5 minutes, then rinse it for 3 times to neutral, dry and adjust the humidity, and control the moisture regain at 8±0.5 %;

[0037] (5) Apply a water-base...

Embodiment 3

[0039] The finishing method of the single-sided superhydrophobic cotton fabric of the present embodiment, the steps are as follows:

[0040] (1) Pre-condition the cotton fabric to control the moisture regain at 8±0.5%;

[0041] (2) Mix 3wt% silica sol with pH=4, 4g / L Gemini surfactant, 1g / L stabilizer, and tap water evenly, and stir at 5000 rpm at high speed to prepare foamed silica sol finishing agent;

[0042] (3) Mix 10 wt% water-based fluorocarbon-modified polyacrylic acid, 4g / L Gemini surfactant, 1g / L stabilizer, and tap water evenly, and stir at 5000 rpm to prepare water-based fluorocarbon-modified polyacrylic acid finishing agent;

[0043] (4) Evenly scrape the prepared foam finishing agent on one side of the pre-conditioned cotton fabric, then steam it at 100°C for 5 minutes, then rinse it for 3 times to neutral, dry and adjust the humidity, and control the moisture regain at 8±0.5 %;

[0044] (5) Apply a water-based fluorocarbon-modified polyacrylic acid finish evenl...

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Abstract

The invention discloses an arranging method of single-faced super-hydrophobic cotton fabrics. The method comprises the steps of preparing a silica sol foam finishing agent and an aqueous fluorine-containing polyacrylic acid water-repellency foam finishing agent, sequentially and uniformly scrapping and coating the silica sol foam finishing agent and the aqueous fluorine-containing polyacrylic acid water-repellency foam finishing agent on the surfaces of the fabrics, keeping a low liquid carrying ratio, controlling the finishing agent on the single faces of the cotton fabrics only without permeation, and then carrying out gas steam-roasting-washing, and forming coatings on one surfaces of the cotton fabrics so that the single faces of the fabrics are roughened, the surface free energy of the cotton fabrics can be greatly reduced and the single face super-hydrophobicity can be endowed to the cotton fabrics. The arranging method of the single-faced super-hydrophobic cotton fabrics is practical, environmental-friendly and efficient because the cotton fabrics still have better hydrophobic effects after washing for multiple times; furthermore, the arranging method is convenient to operate, low in water consumption, simple in process and low in energy consumption; in addition, the liquid carrying ratio of the cotton fabrics is very low so that the arranging method is applicable to the single face water-repellency of uneven thick cotton fabrics, and the single-faced super-hydrophobic cotton fabrics can be prepared to meet the specific requirements on functionality and comfort by people, therefore the arranging method has a good application prospect.

Description

technical field [0001] The invention belongs to the field of functional finishing of textiles, in particular to a method for preparing a single-sided superhydrophobic cotton fabric. Background technique [0002] Cotton fabric has good hygroscopicity and air permeability, comfortable to wear, soft to the touch, soft luster, rustic, full of natural beauty; its warmth retention and dyeability are also good. Therefore, it is favored by consumers. However, cotton fabric has good hygroscopicity and hydrophilic properties, and is easily wetted by water and stained by oil, which brings inconvenience to its wearing and use. Therefore, it is necessary to carry out hydrophobic finishing on cotton fabrics. Recently, inorganic nanoparticles such as silica, titanium dioxide, and zinc oxide have been used to construct rough microstructures, and then chemical surface modification has successfully endowed various substrates with hydrophobic functions. The main principle is to use the "lot...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/79D06M15/277D06M13/256D06M101/06
Inventor 周伟涛李克兢杜姗汪青李梅梅
Owner ZHONGYUAN ENGINEERING COLLEGE
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