Arranging method of super-hydrophobic and hydrophilic double-faced heterologous cotton fabric

A technology for double-sided heterosexual, cotton fabrics, applied in fiber processing, textiles and papermaking, etc., can solve the problems of high hygroscopicity, unevenness, and difficulty in single-sided hydrophobic finishing, etc., to achieve convenient operation, good hydrophobic effect, good The effect of the application foreground

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 one-sided hydrophobic finishing

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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  • Arranging method of super-hydrophobic and hydrophilic double-faced heterologous cotton fabric
  • Arranging method of super-hydrophobic and hydrophilic double-faced heterologous cotton fabric
  • Arranging method of super-hydrophobic and hydrophilic double-faced heterologous cotton fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The finishing method of the superhydrophobic and hydrophilic double-sided heterosexual cotton fabric of the present embodiment, the steps are as follows:

[0032] (1) Pre-condition the cotton fabric to control the moisture regain at 8±0.5%;

[0033] (2) Fix the fabric on the metal drum collection device, the rotation speed of drum 2 is 50 rpm, and the metal drum collection device is connected to the negative electrode of high voltage generator 6;

[0034] (3) Put 1% silica sol finishing agent with pH=4 in the syringe 4, place it on the syringe pump, and fix the positive electrode of the high-voltage generator 6 on the metal needle 3 of No. 9;

[0035] (4) Adjust the distance between the roller 2 and the metal No. 9 needle 3 at 10cm, the voltage at 15kv, and control the flow rate at 1ml / min. Spray the silica sol finishing agent evenly on the surface of the fabric in small droplets, and control the spray flow rate, frequency and time. Ensure that wetting only occurs on o...

Embodiment 2

[0039] The finishing method of the superhydrophobic and hydrophilic double-sided heterosexual 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) Fix the fabric on the metal drum collection device, the drum speed is 200 rpm, and the metal drum collection device is connected to the negative pole of the high voltage generator;

[0042] (3) Put 2% silica sol finishing agent with pH=4 in the syringe, place it on the syringe pump, and fix the positive electrode of the high-voltage generator on the metal No. 9 needle;

[0043] (4) Adjust the distance between the roller and the needle at 20cm, the voltage at 25kv, control the flow rate at 5ml / min, spray the silica sol finishing agent on the surface of the fabric evenly in small droplets, control the spray flow rate, frequency and time, and ensure that only wetting occurs On one side of cotton fabric;

[0044] (5) Steam...

Embodiment 3

[0047] The finishing method of the superhydrophobic and hydrophilic double-sided heterosexual cotton fabric of the present embodiment, the steps are as follows:

[0048] (1) Pre-condition the cotton fabric to control the moisture regain at 8±0.5%;

[0049] (2) Fix the fabric on the metal drum collection device, the drum speed is 500 rpm, and the metal drum collection device is connected to the negative pole of the high voltage generator;

[0050] (3) Put 3% silica sol finishing agent with pH=4 in the syringe, place it on the syringe pump, and fix the positive electrode of the high-voltage generator on the metal No. 9 needle;

[0051] (4) Adjust the distance between the roller and the needle at 20cm, the voltage at 30kv, and control the flow rate at 10ml / min. Spray the silica sol finishing agent on the surface of the fabric evenly in small droplets, and control the spray flow rate, frequency and time to ensure that only wetting occurs. On one side of cotton fabric;

[0052] (...

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 discloses an arranging method of a super-hydrophobic and hydrophilic double-faced heterologous cotton fabric. The method comprises the steps of spraying a silicon dioxide sol finishing agent and a water-based fluorine-containing polyacrylic acid water repellent finishing agent on the surface of the cotton fabric by using a high voltage static field, keeping low amounts of condensing liquids, controlling the finishing agent only on the single face of the cotton fabric without permeation, then steaming, baking and washing, forming a coating on one surface of the cotton fabric to rough on the single face of the fabric, reducing the surface free energy of the cotton fabric and endowing the super-hydrophobicity of single face of the cotton fabric; on the other side, the good inherent hygroscopicity can be kept to obtain the super-hydrophobic and hydrophilic double-faced heterologous cotton fabric; furthermore, the arranging method provided by the invention is convenient to operate, simple in process and good in operability; meanwhile, the amounts of condensing liquids of the cotton fabric are low, therefore the method is applicable to the single water repellent finish of uneven heavy cotton fabrics, and the prepared super-hydrophobic and hydrophilic double-faced heterologous cotton fabric can meet the special requirements on functionality and comfort.

Description

technical field [0001] The invention belongs to the field of functional finishing of textiles, in particular to a method for preparing superhydrophobic and hydrophilic double-sided heterosexual cotton fabrics. 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 ...

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): D06M11/77D06M15/277
Inventor 周伟涛李克兢黄海涛汪青何建新裴晓鹤
Owner ZHONGYUAN ENGINEERING COLLEGE
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