Finishing method of cotton-hydrophobic fabric based on BTCA-TEOS-OA combined treatment

A BTCA-TEOS-OA, combined processing technology, applied in fiber processing, textile material processing, liquid/gas/vapor textile processing and other directions, can solve environmental problems, application limitations and other issues, to avoid environmental problems, reduce Surface energy, good repeatability

Active Publication Date: 2015-06-17
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

Application of perfluorinated chemical reage

Method used

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  • Finishing method of cotton-hydrophobic fabric based on BTCA-TEOS-OA combined treatment
  • Finishing method of cotton-hydrophobic fabric based on BTCA-TEOS-OA combined treatment
  • Finishing method of cotton-hydrophobic fabric based on BTCA-TEOS-OA combined treatment

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example 1

[0032] Fabric: Cotton woven fabric (133×72 / 40S×40S)

[0033] 1) Prescription: BTCA: 1.5%

[0034] Sodium hypophosphite: 6%

[0035] Method: Dip and roll twice at room temperature, dry at 70°C for 4min after rolling, and bake at 180°C for 2min for later use.

[0036] 2) Prescription: Tetraethyl orthosilicate 4%

[0037] Ethanol: water = 6: 4

[0038] Ammonia: 3%

[0039] Method: Bath ratio: 1:30

[0040] Temperature: 80℃

[0041] Time: 2 hours

[0042] 3) Prescription: Methanol

[0043] Ammonia 1%

[0044] Octadecylamine 6%,

[0045] Method: Bath ratio: 1:30

[0046] Temperature: room temperature

[0047] Two dips and two rolls, after the rolling car is finished, bake at 120℃ for 5min.

[0048] The performance results of the obtained cotton fabric are shown in Table 1. Figure 1-2 Shown.

[0049] Hydrophobic performance comparison: the hydrophobic performance of the cotton fabric treated by the method of the present invention is compared with the control (only OA treatment, the tr...

Example Embodiment

[0058] Example 2

[0059] Follow the steps below to process cotton fabric:

[0060] (1) The fabric is pre-treated with 1,2,3,4-butanetetracarboxylic acid (BTCA): the cotton fabric is placed in a mixture of 1% BTCA mass fraction and 1% catalyst sodium hypophosphite mass fraction Solution, padding at room temperature, drying at 100°C for 1 minute after rolling, baking at 160°C for 3 minutes, for use;

[0061] (2) Then treat with tetraethyl orthosilicate: bath ratio 1:10, the ratio of propanol to water is 5:5, the mass fraction of tetraethyl orthosilicate is 6%, the mass fraction of catalyst (ammonia) is 5 %, the reaction time at 85°C is 0.5 hours, take it out and dry it for later use;

[0062] (3) Finally, treat with octadecylamine: add ethanol according to the bath ratio of 1:10, the mass fraction of ammonia water is 2%, and the mass fraction of octadecylamine is 1%. After the fabric is soaked, it is rolled by rolling, Bake at 100°C for 4 minutes.

[0063] The cotton fabric obtained b...

Example Embodiment

[0064] Example 3

[0065] Follow the steps below to process cotton fabric:

[0066] (1) The fabric is pre-treated with 1,2,3,4-butanetetracarboxylic acid (BTCA): the cotton fabric is placed in a mixture of 5% BTCA and 4% catalyst sodium hypophosphite. Solution, padding at room temperature, drying at 85°C for 5 minutes after rolling, baking at 170°C for 1 minute, for use;

[0067] (2) Then treat with tetraethyl orthosilicate: bath ratio 1:40, butanol to water ratio is 9:1, tetraethyl orthosilicate mass fraction is 1%, catalyst (ammonia water) mass fraction is 1 %, the reaction time at 50℃ is 4 hours, take it out and dry it for later use;

[0068] (3) Finally, treat with octadecylamine: add isopropanol as the OA solvent at a bath ratio of 1:40, the mass fraction of ammonia water is 5%, and the mass fraction of octadecylamine is 8%. After the fabric is immersed, After rolling, baking at 150°C for 1 minute.

[0069] The cotton fabric obtained by this method: contact angle 142°, hydrostat...

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Abstract

The invention discloses a finishing method of a cotton-hydrophobic fabric based on BTCA-TEOS-OA combined treatment and belongs to the technical field of functional textiles. The finishing method is characterized in that 1,2,3,4-butanetetracarboxylic acid is adopted for pretreating the fabric so as to increase the capability of reaction between the fabric and a following chemical reagent and function as a bridge; tetraethoxysilane is hydrolyzed and condensated under the acidic or alkali condition so as to form particulate matters on the surface of the fabric and play a role in roughening the fabric; due to long-chained alkane type octadecylamine, the surface energy of the fabric can be effectively reduced, and further the environmental problem caused by total-fluoride energy is avoided. The finishing method disclosed by the invention has the advantages that the traditional processes of soaking, rolling, drying and baking are adopted, and a product is good in uniformity and repeatability and low in cost. BTCA, TEOS and OA adopted in the finishing process need to be carried out under the condition of weak acid and weak alkaline, the baking temperature is low and the damage on the fabric is less. The finishing method can be used for finishing the hydrophobic function of the cotton fabrics.

Description

technical field [0001] The invention discloses a method for finishing cotton hydrophobic fabrics based on BTCA-TEOS-OA joint treatment, and belongs to the technical field of functional textiles. Background technique [0002] The hydrophobicity of the fabric refers to the resistance of the fabric to water. The purpose of hydrophobic finishing is to prevent water from wetting the fabric, and the fabric still maintains air and moisture permeability after finishing. Water-repellent finishing fabrics were first used in the production of military uniforms and protective clothing, and are now widely used in the production of sportswear, travel bags, umbrellas, tents, etc. The demand for such fabrics in domestic and international markets is increasing year by year. Cotton fabric has become the most commonly used textile fabric due to its excellent properties such as softness, breathability, moisture absorption, durability, and comfort, and is widely used in clothing, decoration and...

Claims

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Application Information

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IPC IPC(8): D06M13/192D06M13/50D06M13/328D06M11/70D06B3/18D06B15/00D06M101/06
Inventor 杜金梅张璐璐高卫东王鸿博许长海孙昌汪佳董晶
Owner 高青如意纺织有限公司
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