Preparation method of waterproof and moisture permeable cotton fabric

A waterproof and moisture-permeable cotton fabric technology, applied in the processing of textile materials, textiles and papermaking, liquid/gas/steam textile material processing, etc., can solve the problems of long production time, high cost, complicated preparation process, etc. The method is easy to operate, the manufacturing method is simple, and the effect of broad market prospects

Inactive Publication Date: 2020-04-10
NANTONG SAIHUI TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process is complicated, the production time is long, the cost is high and the application is narrow
At the same time, the coating on the surfa

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for preparing a waterproof and moisture-permeable cotton fabric is provided, the main steps of which are as follows:

[0030] (1) Dilute the organic fluorine water and oil repellent finishing agent with deionized water to 10g / L, after stirring evenly, soak the cotton fabric in the organic fluorine water and oil repellent finishing agent for 7 minutes according to the bath ratio of 1:20, Adjust the pressure of the small paddle car for two dipping and two rolling, control the excess rolling rate to 70%, pre-bake at 80°C for 5 minutes, and after the pre-bake, bake at 160°C for 1 minute to obtain water and oil repellent cotton fabric.

[0031] (2) Take 0.5% of the mass of the coating agent for fumed nano-silica and fully dry it at 140°C, then dissolve it in absolute ethanol at a ratio of 1:10, and add 3% of the mass of the coating agent for silane coupling Agent KH560, ultrasonically oscillating for 4 hours at a pH of 5 and a temperature of 25°C to obtain a hydroph...

Embodiment 2

[0035] A method for preparing a waterproof and moisture-permeable cotton fabric is provided, the main steps of which are as follows:

[0036](1) Dilute the organic fluorine water and oil repellent finishing agent with deionized water to 13g / L, after stirring evenly, soak the cotton fabric in the organic fluorine water and oil repellent finishing agent according to the bath ratio of 1:20 for 7 minutes, Adjust the pressure of the small paddle car for two dipping and two rolling, control the excess rolling rate to 70%, pre-bake at 80°C for 5 minutes, and after the pre-bake, bake at 160°C for 1 minute to obtain water and oil repellent cotton fabric.

[0037] (2) Take the gas-phase nano-silica which accounts for 1% of the mass of the coating agent and fully dry it at 150°C, then dissolve it in absolute ethanol at a ratio of 1:10, and add 4% of the mass of the coating agent for silane coupling Reagent KH560, ultrasonically oscillating for 3.5 hours at a pH of 6 and a temperature of ...

Embodiment 3

[0041] A method for preparing a waterproof and moisture-permeable cotton fabric is provided, the main steps of which are as follows:

[0042] (1) Dilute the organic fluorine water and oil repellent finishing agent with deionized water to 20g / L, after stirring evenly, soak the cotton fabric in the organic fluorine water and oil repellent finishing agent according to the bath ratio of 1:20 for 5 minutes, Adjust the pressure of the small paddle car for two dipping and two rolling, control the excess rolling rate to 80%, pre-bake at 90°C for 3 minutes, and after the pre-bake, bake at 160°C for 2 minutes to obtain water and oil repellent cotton fabric.

[0043] (2) Take 1.5% of the mass of the coating agent and fully dry the fumed nano-silica at 170°C, then dissolve it in absolute ethanol at a ratio of 1:10, and add 4% of the mass of the coating agent to couple with silane Reagent KH560, ultrasonically oscillating for 4 hours at a pH of 7 and a temperature of 35°C to obtain a hydro...

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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PUM

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Abstract

The invention discloses a preparation method of waterproof and moisture permeable cotton fabric, and belongs to the field of fabric coating textile technologies. The preparation method mainly comprises the following steps: firstly padding the cotton fabric that is washed with water and aired into a water repellent finishing agent, and predrying and baking to acquire the water and oil repellent cotton fabric; then performing hydrophobic modification on gaseous nanosilicon dioxide by using a silane coupling agent; adding the improved hydrophobic gaseous nanosilicon dioxide, polyethylene piroxanone, a metallic soap defoamer, an anionic cross-linking agent, an associated thickener into waterborne polyurethane, and thus acquiring a modified waterborne polyurethane coating agent under the condition of stirring at certain temperature; finishing coating of the cotton fabric that is subjected to water and oil repellent treatment with the coating agent, and thus acquiring the cotton fabric withthe coating having waterproof and moisture permeable functions. The prepared fabric can prevent liquid water molecules from entering under certain pressure, meanwhile can enable vapor water moleculesto penetrate through, and thus has good waterproof and moisture permeable effect.

Description

technical field [0001] The invention belongs to the technical field of fabric coating textiles, in particular to a method for preparing waterproof and moisture-permeable cotton coated fabrics. Background technique [0002] Waterproof and moisture-permeable functional clothing is vividly called "breathable fabric". This is because on the one hand, it can protect the human body from external wind and snow dirt, and on the other hand, it can discharge the sweat produced by human activities into the external air in time to achieve the effect of waterproofing and moisture conduction. This fabric is widely used in T-shirts, jackets, ski boots and other products, which helps to improve the comfort performance of clothing. [0003] The components of waterproof and moisture-permeable coating agents on the market are mostly polyacrylates and polyurethanes. Among them, polyurethane is a polymer material with a wide range of uses. It is a polymer with superior performance formed by th...

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): D06N3/00D06N3/14D06B3/18
CPCD06B3/18D06N3/0015D06N3/0061D06N3/0063D06N3/0077D06N3/14D06N2201/042D06N2209/126D06N2209/142
Inventor 沈海生姚桂兰
Owner NANTONG SAIHUI TECH DEV
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