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A kind of high-permeability flow-guiding layer material and preparation method thereof

A permeability and diversion layer technology, applied in the field of high permeability diversion layer materials and their preparation, can solve the problems of poor instantaneous suction effect, poor diversion performance, poor permeability, etc. Good comfort and good drainage

Active Publication Date: 2020-04-17
CHANGSHU GOLD SPRING CHEM FIBERS & KNITTINGS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this patent has the characteristics of instant absorption and multiple absorption, it cannot realize the longitudinal flow guide along the product well, and the liquid coming down from the funnel-shaped guide layer will gather locally in the absorbing layer, hindering the flow of other materials in the absorbing layer. Exercising the absorption capacity of the polymeric water-absorbent resin (SAP) in the region
[0008] To sum up, the existing patents related to the material of the diversion layer of sanitary products have the problems of poor vertical conductivity, complex processing technology, difficulty in batching, and difficulty in actual production.
In order to overcome the technical problems of poor conduction performance, inability to store liquid, poor instantaneous suction effect, complex process, poor permeability and difficulty in mass production existing in the existing guide layer materials, the present invention provides a high-permeability guide layer Materials and their preparation methods

Method used

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  • A kind of high-permeability flow-guiding layer material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) The hydrophilic bi-component fiber and the water-repellent bi-component fiber with a fineness of 1.1-3D and a length of 38-51mm are divided into hydrophilic bi-component fibers: the water-repellent bi-component fiber is 50 - Blending at a ratio of 70:30-50, after feeding, opening, mixing and carding processes, after being stripped by a doffer, the cotton is stripped by a stripping roller (not passing through a condensing roller) to form the bottom fiber of a straight-laid network structure net, the grammage of the bottom fiber web is 10.8-20g / m 2 .

[0031] (2) The hydrophilic bicomponent fibers with a fineness of 1.5-3D and a length of 51mm and the hydrophilic special-shaped cross-section fibers of 4-6D and a length of 64-75mm are divided into hydrophilic bicomponent fibers: special-shaped Cross-sectional fibers are blended at a ratio of 25-40:60-75. After feeding, opening, mixing, carding, and upper and lower double doffer stripping processes, a fiber web layer w...

Embodiment 2

[0039] 1. Preparation of fiber raw materials

[0040] 1) Bottom fiber web fiber raw material

[0041] Choose PE / PP hydrophilic two-component fiber, the fineness is 1.1D, the length is 38mm, the content of hydrophilic oil agent on the surface of the fiber is 1.8%, and the PE / PP water-repellent two-component fiber is selected, the fineness is 3D, The length is 51mm, the content of water-repellent oil agent on the fiber surface is 1%, and the mixing ratio of PE / PP hydrophilic bi-component fiber and PE / PP water-repellent bi-component fiber is 50: 50;

[0042] 2) Fiber raw material of the upper layer web

[0043] Use PE / PP hydrophilic bi-component fiber with a fineness of 1.5D and a length of 51mm. The content of hydrophilic oil agent on the surface of the fiber is 1.8%. Use polyester special-shaped cross-section fiber with a fineness of 4D and a length of 64mm. The number is 3, the content of hydrophilic oil agent on the surface of the fiber is 0.2%, and the blending ratio is 25...

Embodiment 3

[0053] 1. Preparation of fiber raw materials

[0054] 1) Bottom fiber web fiber raw material

[0055] Choose PE / PET hydrophilic two-component fiber, the fineness is 2.2D, the length is 51mm, the content of hydrophilic oil agent on the surface of the fiber is 1%, choose PE / PP water-repellent two-component fiber, the fineness is 2.2D , length is 51mm, fiber surface water repellent oil agent content is 2%, according to the mixing ratio of PE / PP hydrophilic bicomponent fiber and PE / PP water repellent bicomponent fiber is 60: 40 blending;

[0056] 2) Fiber raw material of the upper layer web

[0057] Use PE / PET hydrophilic bi-component fiber with a fineness of 2.2D and a length of 51mm. The number is 5, the content of hydrophilic oil agent on the surface of the fiber is 0.38, and the blending ratio is 35:65 according to the mixing ratio of hydrophilic two-component fiber: special-shaped cross-section fiber;

[0058] 2. Preparation of bottom fiber web and upper layer fiber web

...

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Abstract

The invention discloses a high-permeability diversion layer material and a preparation method thereof, and relates to the field of disposable sanitary products. The preparation method of the high-permeability diversion layer material is characterized in that by compound-superimposing and selecting an upper layer vertical net and a bottom layer direct laying net, matching coarse denier profiled cross-section fibers and fine denier hydrophilic double components in the upper layer vertical net, reasonably matching hydrophilic and water-repellent double-component fiber in the bottom layer direct laying net, selecting a hot air penetration thermal stabilization mode and reasonably selecting lustring and setting technological parameters of a hot pressing roll, the high-permeability diversion layer material with good permeability is prepared. Therefore, the technical problems of poor diversion performance, inability in storing liquid, poor transient sucking effect, complex technology, poor permeability and difficulty in quantity production of a diversion layer material are solved, and the effects of enabling the diversion layer material to have good abilities of transient suction property, diversion property, barrier property and temporary liquid storage and to have good effects of ventilation, moisture permeation and reverse osmosis prevention are achieved.

Description

technical field [0001] The invention relates to the field of disposable sanitary products, in particular to a high-permeability diversion layer material and a preparation method thereof. Background technique [0002] With the acceleration of people's life rhythm, the use of disposable sanitary products such as sanitary napkins, panty liners, diapers and nursing pads is increasing year by year. According to the statistics of the Household Paper Professional Committee of China Paper Association [Jiang Manxia, ​​Sun Jing , Zhang Yulan, etc. China's disposable sanitary products industry overview and market outlook in 2014 [J]. Paper Information, 2015, (12): 25-29.], in 2014, the consumption of sanitary napkins in China has reached 77.64 billion pieces per year, and the market The penetration rate has reached 91.5%, the pads are 37.2 billion pieces, and the total factory sales of sanitary napkins and sanitary pads are about 27.93 billion yuan; the market size is about 34.85 billi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F13/15A61F13/537
CPCA61F13/15699A61F13/53713
Inventor 钱程
Owner CHANGSHU GOLD SPRING CHEM FIBERS & KNITTINGS
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