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Super-hydrophobic finishing method of ramie fabric

A super-hydrophobic and fabric technology, which is applied in the field of super-hydrophobic finishing of ramie fabrics, can solve problems such as poor durability, and achieve the effects of excellent hydrophobic effect, enhanced bonding, and outstanding performance

Inactive Publication Date: 2019-01-29
ANHUI YAYUAN PRINTING & DYEING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention proposes a method for superhydrophobic finishing of ramie fabrics, which not only avoids the use of fluorine-containing finishing agents, but also overcomes the defects of poor durability of traditional hydrophobic finishing. Outstanding performance, strong washability

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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  • Super-hydrophobic finishing method of ramie fabric

Examples

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Effect test

Embodiment 1

[0017] A method for superhydrophobic finishing of ramie fabrics comprising: padding ramie fabrics with the cyclodextrin treatment solution, two dips and two rolls, the padding temperature is 70°C, the excess rate is 150%, and the bath ratio is 1:20, Then pre-baked at 100°C for 2min, then baked at 130°C for 1min, washed with water at 60°C for 5min, and dried at 120°C to obtain a ramie fabric with cyclodextrin immobilized on the surface; The ramie fabric with cyclodextrin is padded with the hydrophobic finishing solution, one padding and one padding, the padding temperature is 80°C, the padding rate is 150%, the bath ratio is 1:20, and then pre-baked at 120°C for 5min, Then bake at 150°C for 3 minutes to obtain the superhydrophobic ramie fabric;

[0018] Wherein, the cyclodextrin treatment liquid includes by weight percentage: cyclodextrin 2%, citric acid 10%, sodium hypophosphite 1%, and the balance is water; the hydrophobic finishing liquid includes by weight percentage : Alk...

Embodiment 2

[0021] A super-hydrophobic finishing method for ramie fabrics comprises: padding the ramie fabrics with the cyclodextrin treatment solution, two dipping and two rolling, the padding temperature is 80°C, the excess rate is 90%, and the bath ratio is 1:40, Then pre-baked at 90°C for 4 minutes, then baked at 120°C for 3 minutes, washed with water at 40°C for 10 minutes, and dried at 100°C to obtain the ramie fabric with cyclodextrin immobilized on the surface; The ramie fabric with cyclodextrin is padded with the hydrophobic finishing solution, one padding and one padding, the padding temperature is 90°C, the padding rate is 90%, the bath ratio is 1:40, and then pre-baked at 110°C for 8min, Then bake at 140°C for 5min to obtain the superhydrophobic ramie fabric;

[0022] Wherein, the cyclodextrin treatment liquid includes by weight percentage: cyclodextrin 5%, citric acid 5%, sodium hypophosphite 5%, and the balance is water; the hydrophobic finishing liquid includes by weight pe...

Embodiment 3

[0025] A superhydrophobic finishing method for ramie fabrics comprises: padding the ramie fabrics with the cyclodextrin treatment solution, two dipping and two rolling, the padding temperature is 75°C, the excess ratio is 120%, and the bath ratio is 1:30, Then pre-baked at 95°C for 3 minutes, then baked at 125°C for 2 minutes, washed with water at 50°C for 7 minutes, and dried at 110°C to obtain the ramie fabric with cyclodextrin immobilized on the surface; The ramie fabric with cyclodextrin is padded with the hydrophobic finishing solution, one padding and one padding, the padding temperature is 85°C, the padding rate is 130%, the bath ratio is 1:30, and then pre-baked at 115°C for 7min, Then bake at 145°C for 4min to obtain the superhydrophobic ramie fabric;

[0026] Wherein, the cyclodextrin treatment liquid includes by weight percentage: cyclodextrin 3%, citric acid 7%, sodium hypophosphite 3%, and the balance is water; the hydrophobic finishing liquid includes by weight p...

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 a super-hydrophobic finishing method of a ramie fabric, the method comprises the following steps: after the ramie fabric is soaked in a cyclodextrin treatment liquid, and thenthe ramie fabric is soaked in a hydrophobic finishing liquid to obtain a super-hydrophobic ramie fabric; wherein the cyclodextrin treatment liquid comprises the following components in percentage by weight: 2% -5% of cyclodextrin, 5% -10% of citric acid, 1% -5% of sodium hypophosphite and the balance of water; wherein the hydrophobic finishing liquid comprises the following components in percentage by weight: 5-15% of alkoxy modified long-chain alkyl polysiloxane, 2-8% of 3-glycidyloxypropyltrimethoxysilane, 1% -5% of nano zinc oxide, 2% -8% of nano silica sol and the balance of ethyl alcohol.According to the super-hydrophobic finishing method of the ramie fabric, use of a fluorine-containing finishing agent is avoided, the defect that a conventional hydrophobic finishing is poor in durability is overcome, the obtained super-hydrophobic ramie fabric is excellent in hydrophobic effect, environment-friendly and healthy, outstanding in performance and high in washing resistance.

Description

technical field [0001] The invention relates to the technical field of functional textiles, in particular to a method for superhydrophobic finishing of ramie fabrics. Background technique [0002] In the past, compounds containing long fluorocarbon chains were mostly used as hydrophobic finishing agents to obtain fabrics with low surface free energy. Although compounds containing fluorine systems have better finishing effects, such finishing agents are expensive. It is found that fluorine-containing chemicals are difficult to biodegrade and cause potential harm to the environment and human health. Therefore, how to make environmentally friendly finishing agents achieve the finishing effect of compounds with long fluorocarbon chains is an important issue in the development of functional fabrics today. [0003] At present, there are also reports in the literature that inorganic nanoparticles such as silica and titanium dioxide are used to construct rough structures, and then c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/03D06M13/207D06M11/70D06M15/643D06M13/513D06M11/44D06M11/79C08G77/38D06M101/06
CPCC08G77/38D06M11/44D06M11/70D06M11/79D06M13/207D06M13/513D06M15/03D06M15/643D06M2101/06D06M2200/12
Inventor 潘学东
Owner ANHUI YAYUAN PRINTING & DYEING CO LTD