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Sandwich structure paper diaper flow guiding layer material and preparation method thereof

A technology for diapers and sandwiches, which is applied in the field of preparation of the diversion layer of diapers with a sandwich structure. It can solve the problems of poor air permeability and inability to effectively guide the longitudinal diffusion of liquid, and achieve short penetration time, short liquid penetration time, and large liquid The effect of storage

Active Publication Date: 2018-03-06
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure can effectively guide the surface layer of liquid to penetrate down, but it cannot effectively guide the longitudinal diffusion of liquid
[0004] Patent CN203436464U discloses a fluffy diversion layer, which includes a longitudinally carded fiber web layer and a transversely carded fluffy fiber web layer, the longitudinal carded layer can longitudinally spread the liquid to the transverse fluffy fiber layer, so that the liquid can quickly infiltrate into the absorbent core , the transverse fiber layer can resist a part of the pressure, so that the liquid is stored in the diversion layer for a short time, so that the liquid will not seep back to the water-permeable surface layer, and this structure has poor air permeability

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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  • Sandwich structure paper diaper flow guiding layer material and preparation method thereof
  • Sandwich structure paper diaper flow guiding layer material and preparation method thereof
  • Sandwich structure paper diaper flow guiding layer material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0049] Such as Figure 10 As shown, the sandwich structure diaper diversion layer material is composed of three-layer sheets, all of which are non-woven fabrics made of chemical fibers through hot air penetration bonding non-woven technology, and the three-layer sheets Laminated and bonded from top to bottom to form a sandwich structure; the upper sheet 1 is such as figure 2 Machine direction oriented web as shown; middle layer sheet 2 is as Figure 7 The longitudinally oriented fiber web shown has a wavy cross-section; the lower sheet 3 is as image 3 The messy web shown, such as Figure 9As shown, uniform small holes 4 are distributed on the fiber net; the chemical fibers are ES fibers. The ES fiber is a sheath-core bicomponent fiber, wherein the sheath layer is PE, and the core layer is PP or PET. The crimp of the ES fiber is 10 pieces / 25mm. The surface density of the sandwich structure diaper diversion layer material is 30g / m 2 , the thickness is 4mm.

[0050] Such...

Embodiment 2

[0057] Such as Figure 10 As shown, the sandwich structure diaper diversion layer material is composed of three-layer sheets, all of which are non-woven fabrics made of chemical fibers through hot air penetration bonding non-woven technology, and the three-layer sheets Laminated and bonded from top to bottom to form a sandwich structure; the upper sheet 1 is such as figure 2 Machine direction oriented web as shown; middle layer sheet 2 is as Figure 8 The longitudinally oriented fiber web shown has a zigzag cross section; the lower sheet 3 is as image 3 The messy web shown, such as Figure 9 As shown, uniform small holes 4 are distributed on the fiber net; the chemical fibers are ES fibers. The ES fiber is a sheath-core bicomponent fiber, wherein the sheath layer is PE, and the core layer is PP or PET. The crimp of the ES fiber is 12 pieces / 25mm. The surface density of the sandwich structure diaper diversion layer material is 30g / m 2 , the thickness is 3mm.

[0058] S...

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Abstract

The invention provides a sandwich structure paper diaper flow guiding layer material and a preparation method thereof. The sandwich structure paper diaper flow guiding layer material is characterizedby comprising three layers of sheets, the three layers of sheets are all non-woven fabrics manufactured by adopting chemical fiber through the hot-blast air penetration bonding non-woven technology, and the three layers of sheets are stacked and bonded from top to bottom to form the sandwich structure; the upper-layer sheet is a longitudinal orienteering fiber net; the middle-layer sheet is a longitudinal orienteering fiber net, and the cross section is in a wavy shape or a sawtooth shape; the lower-layer sheet is a disordered fiber net, and small holes are evenly distributed in the fiber net;the chemical fiber is ES fiber. The prepared flow guiding layer material can shorten the liquid penetration time, increase the liquid diffusion length and increase the liquid storage amount.

Description

technical field [0001] The invention belongs to the field of nonwoven material preparation, and in particular relates to a method for preparing a diversion layer of a sandwich-structure paper diaper. Background technique [0002] Diapers are health care products suitable for infants, middle-aged and elderly people with urinary incontinence and paralyzed patients. Because this kind of health care products need to be in contact with the user's skin, they need to have a certain degree of dryness and liquid absorption. The diversion layer is used as the middle layer between the surface layer and the absorbent core, which can guide the urine permeated from the surface layer to conduct and diffuse along the longitudinal direction of the diaper, so that the urine is evenly absorbed by the absorbent core. Although there are many patents and products related to the structure of the diversion layer in recent years, there are still some problems as the diversion layer that meets the ab...

Claims

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/15D04H1/541B32B3/24B32B3/28B32B5/08B32B27/02B32B27/12B32B27/32B32B27/36
Inventor 吴海波郑蕾靳向煜黄晨刘金鑫王丹
Owner DONGHUA UNIV
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