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

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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 n

Method used

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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 Embodiment

[0019] Example 1

[0020] (1) Raw material: 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 Takemoto, Japan, with a mass ratio of 20:80; the water used for the preparation of the solution is distilled water, ph=7; the reagent mixing temperature is 75°C; the solution concentration: 0.3%;

[0023] Process conditions: soaking time 8min, bath ratio 1:20, dehydration time 5min, drying temperature 80℃, drying time 3h; (3) Cutting and pre-wetting: the mechanical cutting length is 38mm; the spraying quality of silk fiber is dry Tap water weighing 17%, even if its moisture regain rate reaches 17%, let it stand for 24 hours;

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

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

[0026] (6) Drying temperature: the temperature of the...

Example Embodiment

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

[0029] Weight: 30g / m 2

[0030] Thickness: 0.52mm

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

[0032] The longitudinal / transverse breaking strength ratio is: 4.3

[0033] Water absorption: 923.7%

[0034] Liquid penetration time: 17s

[0035] Liquid rewetting amount: 2.35g

[0036] Liquid slippage volume: 1.94g

Example Embodiment

[0037] Example 2

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

[0039] (2) Hydrophilic modification:

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

[0041] Process conditions: soaking time 8min, bath ratio 1:20, dehydration time 5min, drying temperature 80℃, drying time 3h; (3) Cutting and pre-wetting: the mechanical cutting length is 38mm; the spraying quality of silk fiber is dry Tap water weighing 17%, even if its moisture regain rate 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 blowing and carding unit;

[0043] (5) Carding: ca...

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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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