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A kind of finishing method of cotton hydrophobic fabric based on btca‑teos‑oa combined treatment

A BTCA-TEOS-OA combined treatment technology, which is applied in fiber treatment, textile material treatment, liquid/gas/steam textile material treatment, etc., can solve environmental problems, application restrictions and other problems, so as to avoid environmental problems and reduce Surface energy, good repeatability effect

Active Publication Date: 2017-04-12
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 reagents is limited due to environmental concerns

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 kind of finishing method of cotton hydrophobic fabric based on btca‑teos‑oa combined treatment
  • A kind of finishing method of cotton hydrophobic fabric based on btca‑teos‑oa combined treatment
  • A kind of finishing method of cotton hydrophobic fabric based on btca‑teos‑oa combined treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0033] 1) Prescription: BTCA: 1.5%

[0034] Sodium hypophosphite: 6%

[0035] Method: double dipping and rolling at room temperature, drying at 70°C for 4 minutes after rolling, and baking at 180°C for 2 minutes 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°C

[0041] Time: 2 hours

[0042] 3) Prescription: Methanol

[0043] Ammonia 1%

[0044] Octadecylamine 6%,

[0045] Method: liquor ratio: 1:30

[0046] Temperature: room temperature

[0047] Two dipping and two rolling, after rolling by rolling car, bake at 120°C for 5 minutes.

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

[0049] Hydrophobic property comparison: the cotton fabric hydrophobic property that the inventive method handles obtains is compared with contrast (only through...

Embodiment 2

[0059] Treat cotton fabrics as follows:

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

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

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

[0063] ...

Embodiment 3

[0065] Treat cotton fabrics as follows:

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

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

[0068] (3) Finally, it is treated with octadecylamine: according to the bath ratio of 1:40, isopropanol is added as the OA solvent, the mass fraction of ammonia water is 5%, and the mass fraction of octadecylamine is 8%. After the fabric is impregnated, After rolling, bake at 150°C for 1 minute.

...

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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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Patent Type & Authority Patents(China)
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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