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Hydrophilic modification method of fabrics or nonwoven fabrics and obtained products

A non-woven fabric and hydrophilic technology, applied in the direction of textiles, papermaking, fiber treatment, etc., can solve the problems of complex operation and post-processing, long reaction time, high cost, etc., and achieve simple operation and post-processing, shorten post-processing The effect of time, significant economic benefits

Inactive Publication Date: 2013-03-20
SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to overcome the long reaction time of the existing hydrophilic modification methods of fabrics or nonwovens, affecting the surface regularity of materials, complex operation and post-treatment, high cost, and short duration of modification effect , Narrow application range and other defects, provide a new method with short reaction time, simple operation and post-treatment, low cost, regular surface, good hydrophilicity and moisture retention, and permanent hydrophilicity of the obtained product, and The product obtained by this method

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

[0034] Embodiment 1 Hydrophilic modified PET fabric (fabric 1)

[0035] The hydrophobic PET (weight-average molecular weight=300,000) fabric was put into deionized water and boiled for 30 minutes to remove surface impurities, and then dried in a vacuum oven at 60 degrees Celsius to constant weight. The PET fabric is immersed in the aqueous solution containing 80% (w / w) ammonium persulfate and 1.6% (w / w) N, N'-methylenebisacrylamide until saturated adsorption; The aqueous solution was placed under a 300nm wavelength ultraviolet lamp and irradiated for 10 seconds, then taken out, washed with deionized water several times, and then tested.

[0036] The obtained hydrophilic modified PET fabric was tested for contact angle, and the surface of the fabric was smooth and hydrophilic. Anti-bovine serum albumin (BSA) contamination performance test results show that after 5g / L BSA aqueous solution is adsorbed for 30 minutes and then rinsed with deionized water, the PET fabric has a very...

Embodiment 2

[0039] Embodiment 2 hydrophilic modified nylon 66 fabric (fabric 2)

[0040] Put the nylon (weight-average molecular weight=250,000) fabric into deionized water and continue to boil for 30 minutes to remove surface impurities, and then dry it in a vacuum oven at 60 degrees Celsius to constant weight. Nylon fabric is soaked in the aqueous solution containing 15% (w / w) potassium hydrogen persulfate compound salt and 0.2% (w / w) cross-linking agent DE until saturated adsorption; The aforementioned aqueous solution soaked with nylon fabric is placed in After irradiating for 20 minutes under the ultraviolet lamp with a wavelength of 254nm, take it out and wash it with deionized water for several times before testing.

[0041] The prepared hydrophilic modified nylon fabric has a smooth surface and good hydrophilicity through a contact angle tester. Anti-bovine serum albumin (BSA) contamination performance test results show that after 5g / L of BSA aqueous solution is adsorbed for 30 m...

Embodiment 3

[0044] Embodiment 3 hydrophilic modified polypropylene fabric (fabric 3)

[0045] The hydrophobic polypropylene (weight-average molecular weight = 400,000) fabric was put into deionized water and boiled for 30 minutes to remove surface impurities, and then dried in a vacuum oven at 60 degrees Celsius to constant weight. The polypropylene fabric was soaked in a solution containing 10% (w / w) potassium hydrogen persulfate and 0.002% (w / w) trimethylolpropane tris-(3-ethyleneimino)-propionate and incubated at room temperature. In the aqueous solution of the coupling agent until saturated adsorption; the aforementioned aqueous solution soaked with polypropylene fabric is placed under a 254nm wavelength ultraviolet lamp for 30 seconds, then taken out and washed with deionized water for several times before testing.

[0046] The prepared hydrophilic modified polypropylene fabric has a smooth surface and good hydrophilicity through a contact angle tester. The test results of anti-BSA ...

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Abstract

The invention discloses a hydrophilic modification method of fabrics or nonwoven fabrics, which is characterized by comprising the following steps of: immersing the fabrics or nonwoven fabrics in a water solution containing a water soluble crosslinking agent and persulfates, irradiating by ultraviolet light, and taking out to obtain the products, wherein the fabrics or nonwoven fabrics are synthetic fabrics or nonwoven fabrics containing C-H bonds, or synthetic fiber and natural fiber blended fabrics or nonwoven fabrics containing C-H bonds. The method of the invention overcomes the defects of long response time, influenced material surface regularity, complex operation and post processing, short modified effect duration time, narrow application range and the like. The hydrophilic modification method has the advantage of short response time, simple operation and post processing and low cost, and the obtained products have surface regularity, excellent hydrophilicity and hygroscopicity and permanent hydrophilicity. The invention also provides modified fabrics or nonwoven fabrics prepared by using the method.

Description

technical field [0001] The invention relates to a method for modifying the hydrophilicity of fabric or nonwoven fabric, and a hydrophilically modified fabric or nonwoven fabric. Background technique [0002] For fabrics or non-woven fabrics, due to processing characteristics and product costs, most of them have used synthetic fibers for a long time, and polyester, acrylic, and polypropylene fibers are the most common, and sometimes synthetic fibers and natural fibers are used. , Due to the hydrophobicity of these materials, the hydrophilic properties of fabrics or nonwovens are poor. [0003] Fabrics or non-woven fabrics have high requirements for hydrophilic properties, whether they are medical hygiene materials, clothing or wiping materials. In the field of medical and health care, disinfectant wipes, wound dressings, hemostatic patches, bandages, gauze balls, ointment cloths, and absorbent pads are all required to have good blood and liquid absorption properties. Dispos...

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): D06M14/26D06M14/32D06M14/28D06M13/262
Inventor 李景烨邓波虞鸣于洋李林繁
Owner SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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