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Imitation 3S hot air non-woven fabric and preparation method thereof

A technology of non-woven fabrics and hot air, which is applied in the direction of non-woven fabrics, textiles, papermaking, fiber treatment, etc. It can solve the problems of poor hydrophilicity, weak liquid absorption ability, and decreased slipperiness, and achieve a reduction in skin-to-core ratio. Effects of small size, enhanced moisture absorption capacity, and reduced number of curls

Active Publication Date: 2018-07-17
TIANJIN POLYTECHNIC UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It improves the softness and bulkiness of spunbond nonwovens, but its slipperiness decreases, and the fluffiness is worse than that of hot air nonwovens, and the capillary action between fibers is not as good as that of hot air nonwovens. Liquid ability is weak
In polyolefin nonwoven fabrics, since there are no hydrophilic groups in the polyolefin macromolecular structure, the hydrophilic performance is very poor, and it must have excellent water absorption performance when used as sanitary products.

Method used

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  • Imitation 3S hot air non-woven fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Mechanical carding: The ES fibers of the sheath-core structure are mechanically carded and overlapped to form a fiber web; the skin layer of the ES fiber is polyethylene, the core layer is polyethylene terephthalate, and the skin-core ratio is 20:80 ; The crimp number of ES fiber is 9no. / cm; the crimp degree of ES fiber is 10.5%;

[0024] Hot-air bonding: under hot air at 140°C, the skin layers of the ES fibers at the lap joints were melted and bonded to prepare a 3S-like air-through nonwoven fabric with a thickness of 1.5 mm.

Embodiment 2

[0026] Hydrophilic treatment: Take 15kg of ES fiber and use UV device to irradiate for 25 minutes, then put ES fiber into 35kg of treatment solution with a concentration of 4%, and pass nitrogen gas for 11 minutes, pour out the excess treatment solution after fully swelling, and then use UV device to irradiate 25min, then placed in distilled water and boiled for 2.5h, then dried; wherein, the treatment liquid was composed of poly(1,4-α-D-galacturoside) and poly(α-D-galactosyl-D-gluconic acid Glycoside), the mass ratio of poly(1,4-α-D-galacturoside) to poly(α-D-galactosyl-D-gluconoside) is 1:1;

[0027] Mechanical carding: The ES fibers of the sheath-core structure are mechanically carded and overlapped to form a fiber web; the skin layer of the ES fiber is polyethylene, the core layer is polyethylene terephthalate, and the skin-core ratio is 20:80 ; The crimp number of ES fiber is 9no. / cm; the crimp degree of ES fiber is 10.5%;

[0028] Hot-air bonding: under hot air at 140°C...

Embodiment 3

[0034] Hydrophilic treatment: take 10kg of ES fiber and use UV device to irradiate for 20 minutes, then put ES fiber into 30kg of treatment solution with a concentration of 4%, pass nitrogen gas for 12 minutes, pour out excess treatment solution after fully swelling, and then use UV device to irradiate 30min, then placed in distilled water and boiled for 2h, then dried; wherein, the treatment liquid was composed of poly(1,4-α-D-galacturoside) and poly(α-D-galactosyl-D-gluconoside ), the mass ratio of poly(1,4-α-D-galacturoside) to poly(α-D-galactosyl-D-gluconoside) is 1:1;

[0035] Mechanical carding: The ES fibers of the sheath-core structure are mechanically carded and overlapped to form a fiber web; wherein, the skin layer of the ES fiber is polyethylene, the core layer is polypropylene, and the skin-core ratio is 20:80; the crimp number of the ES fiber is 9no. / cm; ES fiber crimp is 14%;

[0036] Hot-air bonding: under hot air at 140°C, the skin layers of the ES fibers at ...

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Abstract

The invention relates to an imitation 3S hot air non-woven fabric and a preparation method thereof, belongs to the field of hot air non-woven materials, and aims to solve the problem of the use feeling of ordinary hot air non-woven fabrics. The imitation 3S hot air non-woven fabric is formed by mechanically combing ES fibers of a sheath-core structure to overlap with one another to form a fiber web, and melt-bonding skin layers of the ES fibers at the overlapping portion by hot air. The prepared imitation 3S hot air non-woven fabric not only maintains its soft and fluffy touch feeling, but also has the silky and smooth touch feeling of 3S non-woven materials.

Description

technical field [0001] The invention relates to the field of hot air nonwoven materials, more specifically, it relates to a 3S imitation hot air nonwoven fabric and a preparation method thereof. Background technique [0002] 3S nonwoven fabric is composed of three layers of spunbonded nonwoven material, which has good hygroscopic properties and is widely used in hygiene products. In disposable hygiene products such as sanitary napkins and paper diapers, the surface layer material needs to be in close contact with the skin, which requires the surface layer material to be able to absorb liquid well, and to quickly guide the liquid into the diversion layer, while preventing the liquid Rewet, keep yourself dry. In addition, consumers hope that the surface material has a good touch and a more comfortable use experience. [0003] At present, the surface material of sanitary products on the market generally adopts thin spun-bonded non-woven materials or air-through non-woven mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/541D06M10/10
CPCD04H1/541D06M10/10
Inventor 钱晓明李成群姜永平齐晶晶韩丽娜封严马计兰孟钊
Owner TIANJIN POLYTECHNIC UNIV
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