A method for hydrophobic finishing of cotton fabric based on acetic anhydride-acrylic ester-electron beam technology

A technology of acrylates and acetic anhydride pre-ester, which is applied in fiber treatment, plant fiber, textiles and papermaking, etc. It can solve the problems that the hydrophobicity of fabrics cannot be improved, and low-surface substances cannot effectively cover fabrics, so as to avoid pollution and cost Issues, significant social and economic significance, reproducible effects

Active Publication Date: 2018-01-30
高青如意纺织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After electron beam irradiation, low-surface substances cannot effectively cover the fabric, and the fabric's hydrophobicity cannot be improved

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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  • A method for hydrophobic finishing of cotton fabric based on acetic anhydride-acrylic ester-electron beam technology
  • A method for hydrophobic finishing of cotton fabric based on acetic anhydride-acrylic ester-electron beam technology
  • A method for hydrophobic finishing of cotton fabric based on acetic anhydride-acrylic ester-electron beam technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Fabric: pure cotton woven fabric (40S×40S / 133*72)

[0030] 1) Cotton fiber pre-esterified with acetic anhydride

[0031] Prescription: Acetic Anhydride

[0032] Iodine 2g / L

[0033] Bath ratio 1:25

[0034] Method: The cotton fabric is soaked in the above-mentioned acetic anhydride, and treated at room temperature for 2 hours. Reduction with saturated sodium thiosulfate until the dye solution is colorless, washed with water and dried for later use.

[0035] 2) After the cotton fabric is soaked in the organic solution containing acrylate compounds for 1 min, the excess solution is pressed by the paddle

[0036] Prescription: n-Hexyl Methacrylate: 20%

[0037] Solvent: Methanol

[0038] Method: The fabric is dipped and rolled in the reaction solution once, and the excess rate is about 60%.

[0039] 3) After electron beam irradiation, oven dry the fabric

[0040] Method: The irradiation dose is 33KGy, and the oven is dried at 105°C for 2 minutes after irradiation. ...

Embodiment 2

[0046] Fabric: pure cotton woven fabric (40S×40S / 133*72)

[0047] 1) Cotton fiber pre-esterified with acetic anhydride

[0048] Prescription: Acetic Anhydride

[0049] Iodine 1g / L

[0050] Bath ratio 1:25

[0051] Method: The cotton fabric is soaked in the above-mentioned acetic anhydride, and treated at room temperature for 3 hours. Reduction with saturated sodium thiosulfate until the dye solution is colorless, washed with water and dried for later use.

[0052] 2) After the cotton fabric is soaked in an organic solution containing acrylate compounds for 10 minutes, the excess solution is pressed by a paddle

[0053] Prescription: Stearyl Acrylate: 50%

[0054] Solvent: ethanol

[0055] Method: The fabric is dipped in the reaction solution once and rolled, and the rolling rate is about 100%.

[0056] 3) After electron beam irradiation, oven dry the fabric

[0057]Method: The irradiation dose is 45KGy, and the oven is dried at 60°C after irradiation.

[0058] Table 2...

Embodiment 3

[0064] Fabric: pure cotton woven fabric (40S×40S / 133*72)

[0065] 1) Cotton fiber pre-esterified with acetic anhydride

[0066] Prescription: Acetic Anhydride

[0067] Iodine 3g / L

[0068] Bath ratio 1:40

[0069] Method: The cotton fabric is soaked in the above-mentioned acetic anhydride, and treated at room temperature for 1 hour. Reduction with saturated sodium thiosulfate until the dye solution is colorless, washed with water and dried for later use.

[0070] 2) After the cotton fabric is soaked in an organic solution containing acrylate compounds, the excess solution is pressed by a paddle

[0071] Prescription: lauryl acrylate and n-octadecyl methacrylate (1:1g / g): 20%

[0072] Solvent: methanol + isopropanol + butanol (1:1:1)

[0073] Method: The fabric is dipped in the reaction solution once and rolled, and the rolling rate is about 100%.

[0074] 3) After electron beam irradiation, oven dry the fabric

[0075] Method: The irradiation dose is 65KGy, and the ove...

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 cotton fabric hydrophobic finishing method based on acetic anhydride-acrylic ester-electron beam technology, belonging to the field of functional textiles. The method of the invention first adopts acetic anhydride to esterify cotton fibers, and then uses electron beams to treat cotton fabrics with acrylic ester reagents dissolved in alcohol solvents to obtain textiles with hydrophobic properties. Compared with alkanes and olefins solvents, the alcohol solvent used in the method of the present invention has the advantages of low toxicity, small irritation, and low cost. The method of the present invention can avoid environmental problems caused by perfluorinated hydrophobic additives, and electron beam irradiation can chemically combine fiber macromolecules and functional macromolecules, and the obtained product has good uniformity, repeatability, and low cost, and has no effect on fabrics. The damage is small, and this method can be used for the hydrophobic functional finishing of cotton fabrics.

Description

technical field [0001] The invention relates to a cotton fabric hydrophobic finishing method based on acetic anhydride-acrylic ester-electron beam technology, belonging to the field of functional textiles. Background technique [0002] Hydrophobic materials have been paid more and more attention to in people's daily life and industrial production. For example: medical staff clothing, self-cleaning, high-end clothing, outdoor clothing, etc., hydrophobic materials have played an important role. There are a lot of hydrophilic groups in the cotton fiber structure, and the porous structure with more voids makes it easy to be polluted by various polluting liquids. Therefore, the research and preparation of cotton fabrics with hydrophobic properties has certain use value and immeasurable value. economic significance. [0003] The hydroxyl groups on the chemical structure of cotton fibers are chemically active and can react with hydrophobic reagents to prepare hydrophobic products...

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 Patents(China)
IPC IPC(8): D06M14/22D06M13/188D06M101/06
Inventor 杜金梅董晶张璐璐王鸿博许长海
Owner 高青如意纺织有限公司
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