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Modification method for preparing highly-hydrophilic real silk fiber spunlace non-woven material

A non-woven material, hydrophilic modification technology, used in fiber processing, animal fibers, textiles and papermaking, etc., can solve the problems that silk fibers are not easily entangled with each other, affect the quality of the spunlace process, and affect the quality of products. Soft texture, increased moisture content, and increased moisture regain

Inactive Publication Date: 2009-11-04
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent 1786299 "Method of processing silk fiber containing sericin" and 1800473 "Technical method of active sericin silk spunlace non-woven fabric" and other methods, although the silk fiber has certain water absorption, it is not easy to generate excessive static electricity ; But all because of containing sericin, the color of the product is yellower and the feel is harder, which affects the quality of the product
Chinese patent 1236835 "Spunlace non-woven fabric using waste silk as raw material and its production method", 1552972 "Functional silk non-woven wadding and its manufacturing process" and other disclosed methods, by adding textile lubricant to real silk fiber before carding Or softener, enhance the lubrication between fibers, reduce friction, and reduce the static electricity generated during carding; although this method is helpful for the smooth progress of carding, but because the fibers are relatively slippery, when the water needle hits the silk, the silk fibers are not easy to interact Tangling, which seriously affects the progress of the spunlace process and the quality of the product

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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  • Modification method for preparing highly-hydrophilic real silk fiber spunlace non-woven material

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020] (1) Raw materials: No. II cotton sheet purchased from the market.

[0021] (2) Hydrophilic modification:

[0022] Reagent formula: DELION Nw-269 and DELION Nw-344 hydrophilic reagents from Japan Take Corporation, the mass ratio is 20:80; the water used for preparing the solution is distilled water, ph=7; the reagent mixing temperature is 75°C; the solution concentration: 0.3%;

[0023] Process conditions: soaking time 8 minutes, bath ratio 1:20, dehydration time 5 minutes, drying temperature 80 ° C, drying time 3 hours; (3) cutting, pre-wetting: mechanical cutting length is 38 mm; the quality of spraying on silk fibers is dry Tap water with a weight of 17%, even if its moisture regain reaches 17%, let it stand for 24 hours;

[0024] (4) Carding: carding machine line speed 50m / min

[0025] (5) Spunlace pressure: the first 40bar; the second 50bar; the third 60bar; the fourth 70bar;

[0026] (6) Drying temperature: the temperature of the first group of dryers is 100°C, ...

Embodiment 1

[0028] The performance test of the highly hydrophilic silk spunlace nonwoven material of embodiment 1 is as follows:

[0029] Gram weight: 30g / m 2

[0030] Thickness: 0.52mm

[0031] Tensile breaking strength: longitudinal 77.3N / 5cm, transverse 18.1N / 5cm

[0032] Longitudinal / transverse fracture strength ratio: 4.3

[0033] Water Absorption: 923.7%

[0034] Liquid penetration time: 17s

[0035] Liquid return moisture content: 2.35g

[0036] Liquid sliding volume: 1.94g

example 2

[0038] (1) Raw materials: No. II cotton sheet purchased from the market, 1.56dtex×38mm polyester staple fiber for spunlace;

[0039] (2) Hydrophilic modification:

[0040] Reagent formula: DELION Nw-269 and DELION Nw-344 hydrophilic reagents from Take Corporation, Japan, with a mass ratio of 10:90; the water used to prepare the solution is distilled water, ph=7; the mixing temperature of the reagents is 75°C; the concentration of the solution: 0.2%;

[0041] Process conditions: soaking time 8 minutes, bath ratio 1:20, dehydration time 5 minutes, drying temperature 80 ° C, drying time 3 hours; (3) cutting, pre-wetting: mechanical cutting length is 38 mm; the quality of spraying on silk fibers is dry Tap water with a weight of 17%, even if its moisture regain reaches 17%, let it stand for 24 hours;

[0042] (4) Mixing: Put the modified silk and polyester into the opener according to the mass ratio of 50:50, and then open and mix through the cleaning and carding unit;

[0043] ...

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Abstract

The invention relates to a modification method for preparing a highly-hydrophilic real silk fiber spunlace non-woven material, which comprises the following steps: soaking real silk in hydrophilic modification solution for 8 to 10 minutes, taking out the real silk, dehydrating and drying the real silk, and cutting the real silk into short fibers of 30 to 50 millimeters in length; and spraying water to prewet the real silk short fibers, controlling the moisture regain to be less than or equal to 17 percent, sealing the real silk short fibers for 24 hours and then taking out the real silk short fibers, and processing the real silk short fibers in a carding machine of which the linear velocity is between 30 and 120 meters per minute and the hydraulic pressure is between 30 and 100 bars. The highly-hydrophilic real silk fiber spunlace non-woven material prepared by the modification method has the advantages of soft texture, good gloss, no off-flavor, good moisture absorption, air permeability and no chemical additives, and belongs to green environment-friendly products.

Description

technical field [0001] The invention belongs to the field of preparation of silk fibers, in particular to a method for modifying and preparing highly hydrophilic silk fiber spunlace nonwoven materials. Background technique [0002] Silk is a high-grade textile raw material with good strength and elongation. The fiber is thin and soft, smooth and elastic. Its main component, silk peptide, contains 18 kinds of amino acids that are beneficial to the human body. It has strong compatibility with human skin and less irritation. (The skin irritation coefficient is only 7.4%, while that of polyester is 25.5%), known as the "fiber queen". [0003] Silk fabric is a traditional product of our country, which has always been mainly machine-woven. Since the "Sixth Five-Year Plan", silk knitted fabrics have been developed. After more than 30 years of research and development, silk knitted fabrics have become a major category of silk products today, forming a A new industry. However, ther...

Claims

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Application Information

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IPC IPC(8): D06M11/00D06M13/00D06M15/00D06M101/10
Inventor 吴海波柯勤飞靳向煜殷保璞许罗力
Owner DONGHUA UNIV
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