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Composite flowing layer material and preparation method thereof

A technology of diversion layer and lower layer, applied in the field of diversion layer materials and its preparation, to achieve the effects of enhancing diversion performance, saving energy consumption, and enhancing absorption performance

Inactive Publication Date: 2013-07-31
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a composite diversion layer material with excellent performance to solve the above-mentioned problems existing in the existing diversion layer material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) The polyethylene / polypropylene sheath-core bicomponent fiber with a length of 51 mm and a fineness of 5.4 denier hydrophilic treatment is firstly opened and mixed, and then the above-mentioned opened fiber is sent into 1 through the air-flow feeding box No. 1 carding machine, after repeated carding by the main mechanism of the machine, cylinder, work roll and doffer, it is formed into a web, and finally the fiber web is stripped off by the stripping roller to make a parallel and straight fiber composed of single fibers and large pores. Net, that is, the upper fiber net.

[0046] The No. 1 carding machine adopted is a double-cylinder double-doffer structure, and each doffer is equipped with a stripping roller behind the doffer. The line speed ratio of the doffer and the stripping roller is 1.25:1; the front cylinder speed of the carding machine is 540m / min, the speed of the rear cylinder is 1250m / min; the tooth arrangement density of the front cylinder card clothing...

Embodiment 2

[0052] (1) Open and mix the polyethylene / polypropylene sheath-core bicomponent fiber with a length of 51mm and a fineness of 5.4 denier without hydrophilic treatment, and then send the above-mentioned opened fiber into the No. 1 carding machine, after repeated carding by the main mechanism of the machine, the cylinder, the work roll and the doffer, it is formed into a web, and finally the fiber web is stripped off by the stripping roller to make a single fiber, large pores, parallel and straight Fiber web, that is, the upper fiber web.

[0053] The No. 1 carding machine adopted has a structure of double cylinders and double doffers, and each doffer is equipped with a stripping roller behind it. The line speed ratio of the doffer and the stripping roller is 1.15:1; the front cylinder speed of the carding machine is 540m / min, the speed of the rear cylinder is 1250m / min; the tooth arrangement density of the front cylinder card clothing of the carding machine is 148 tooth tips / sq...

Embodiment 3

[0059] (1) The polyethylene / polyester sheath-core bicomponent fiber with a length of 51mm and a fineness of 5.4 denier hydrophilic treatment is firstly opened and mixed, and then the above-mentioned opened fiber is sent into 1 through the airflow feeding box No. 1 carding machine, after repeated carding by the main mechanism of the machine, cylinder, work roll and doffer, it is formed into a web, and finally the fiber web is stripped off by the stripping roller to make a parallel and straight fiber composed of single fibers and large pores. Net, that is, the upper fiber net.

[0060] The No. 1 carding machine adopted is a double-cylinder double-doffer structure, and each doffer is equipped with a stripping roller behind the doffer. The line speed ratio of the doffer and the stripping roller is 1.25:1; the front cylinder speed of the carding machine is 520m / min, the rotational speed of the rear cylinder is 1200m / min; the tooth arrangement density of the front cylinder card clo...

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Abstract

The invention relates to a composite flowing layer material for disposable sanitary articles and a preparation method thereof. The flowing layer consists of two layers of fiber webs, wherein the upper layer is a fiber web which is made of sheath-core bicomponent fiber with fiber length of between 38 and 60mm and fiber fineness of between 5 and 10 denier through or not through hydrophilic treatment; and the lower layer is a fiber web made of sheath-core bicomponent fiber with fiber length of between 38 and 60mm and fiber fineness of between 1.2 and 3 denier through hydrophilic treatment. The bicomponent fiber is arbitrary one of polyethylene / polypropylene or polyethylene / polyester. The preparation method is to prepare the upper fiber web and the lower fiber web with different structure designs respectively and overlap the two fiber webs to make the composite flowing layer material through heat composite reinforcement. The prepared flowing layer material is a non-woven material with high strength, strong fluid absorption capability, good flowing effect and good comfort, and can be widely applied to the field of disposable sanitary articles. The preparation has low energy consumption, does not use a chemical bonding agent, and does not have pollution.

Description

technical field [0001] The invention relates to a diversion layer material and a preparation method thereof in the field of disposable sanitary products, in particular to a composite diversion layer material and a preparation method thereof. Background technique [0002] In the field of disposable sanitary products, the transfer layer is a layer of non-woven material placed between the cover material and the absorbent core, which can effectively help the liquid to quickly transfer down from the cover material and spread the liquid Distributes and temporarily stores fluid so that it leaves the user's skin quickly, keeping the skin dry. [0003] At present, the following two methods can be used to prepare the guide layer material: (1) The guide layer material is made of cellulose fiber / thermoplastic fiber through thermal bonding. Represented by the US6,479,415 B1 patent applied by BKI Corporation of the United States, the guide layer is made of cellulose fiber / thermoplastic f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L15/24A61L15/26D04H1/541D04H1/542D04H1/70
Inventor 吴海波殷保璞靳向煜王洪王欢高海根徐熊耀唐守星
Owner DONGHUA UNIV
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