Preparation method of low-back-osmosis absorption article

A technology for absorbent articles and absorbent bodies, which is applied in the field of preparation of low-rewet absorbent articles, can solve problems such as difficulty in keeping the liquid-permeable surface layer dry, easy breakage of the absorbent body, and reduced air permeability, and achieve a strong sense of lightness and mobility. The effect of good sex and increased absorption

Active Publication Date: 2021-06-15
GUANGDONG YINYIN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to increase the absorption capacity, the existing absorbent articles usually increase the thickness of the absorbent body, but increasing the thickness of the absorbent body will result in reduced air permeability, increased cost, and easy breakage of the absorbent body; moreover, the absorbent body undergoes repeated urine absorption. Finally, its surface is often in a wet

Method used

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  • Preparation method of low-back-osmosis absorption article
  • Preparation method of low-back-osmosis absorption article
  • Preparation method of low-back-osmosis absorption article

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] refer to figure 1 Shown, a kind of preparation method of low rewet absorbent article, comprises the following steps:

[0040] 1) Prepare a liquid-permeable surface layer 1;

[0041] 2) Prepare diversion layer 2;

[0042] 3) Preparation of absorbent core layer: refer to figure 2 As shown, the absorbent core layer includes a first absorbent core 3, a tensile elastic sheet 4 and a second absorbent core 5 that are sequentially stacked from top to bottom, and the tensile elastic sheet 4 is adhered to the first absorbent core. The transverse middle of the lower surface of the core 3, which is not bonded to the upper surface of the second absorbent core 5;

[0043] a. Preparation of the tensile elastic sheet 4: the tensile elastic sheet 4 is sequentially compounded by the upper non-woven fabric 41, the elastic group and the lower non-woven fabric 42, and the elastic group is three stretch ratios distributed side by side along the longitudinal direction 1.8 times the elast...

Embodiment 2

[0065] Embodiment 2 and Embodiment 1 belong to the same inventive concept, and its difference from Embodiment 1 is that the preparation of the diversion layer includes the following steps:

[0066] The sheath-core fiber with a fiber length of 40mm and a fiber fineness of 3D is opened and mixed first, and the opened fiber is sent to the first carding machine through the air-flow feeding box to form a fiber web after repeated carding, and then passed through the stripping roller. The fiber web is peeled off to make a first fiber web composed of single fibers, and the pores between the fibers of the first fiber web are 30 μm;

[0067] The fiber length is 38mm, the fiber fineness is 1D, and the sheath-core fiber that has been treated with hydrophilicity is firstly opened and mixed, and the opened fiber is sent to the second carding machine through the air-flow feeding box for repeated carding to form fibers The web is peeled off by a stripping roller to form a second messy web com...

Embodiment 3

[0077] Embodiment 3 and Embodiment 1 belong to the same inventive concept, and its difference from Embodiment 1 is that the preparation of the diversion layer includes the following steps:

[0078] The sheath-core fiber with a fiber length of 36mm and a fiber fineness of 4D is firstly opened and mixed, and the opened fiber is sent to the first carding machine through the air-flow feeding box to form a fiber web after repeated carding, and then passed through the stripping roller. peeling off the fiber web to make a first fiber web composed of single fibers, and the pores between the fibers of the first fiber web are 30 μm-60 μm;

[0079] The fiber length is 50mm, the fiber fineness is 2D, and the sheath-core fiber that has been treated with hydrophilicity is firstly opened and mixed, and the opened fiber is sent to the second carding machine through the air-flow feeding box for repeated carding to form fibers The web is peeled off by a stripping roller to form a second fiber w...

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Abstract

The invention relates to the field of absorption articles, and particularly relates to a preparation method of a low-back-osmosis absorption article which is high in excretion liquid absorption speed, low in back osmosis amount and good in comfort. The preparation method comprises the following steps that 1), a liquid-permeable surface layer is prepared; 2), a flow guide layer is prepared; 3), an absorption core layer is prepared, wherein the absorption core layer comprises a first absorption core body, a tensile elastic piece and a second absorption core body which are sequentially stacked from top to bottom, and the tensile elastic piece adheres to the transverse middle of the lower surface of the first absorption core body and does not adhere to the upper surface of the second absorption core body; a, the tensile elastic piece is prepared; b, the first absorption core body is prepared; and c, the second absorption core body is prepared; 4), a liquid-impermeable bottom layer is prepared; and 5), the liquid-permeable surface layer, the flow guide layer, the absorption core layer and the liquid-impermeable bottom layer are sequentially compounded and then cut into single low-back-osmosis absorption article.

Description

technical field [0001] The invention relates to the field of absorbent articles, in particular to a preparation method for low-rewet absorbent articles. Background technique [0002] Traditional disposable absorbent articles mainly include a liquid-permeable surface layer, an absorbent body and a liquid-impermeable bottom layer that are stacked sequentially from top to bottom. Provides a comfortable and dry feeling when in contact with the body, while allowing liquids to pass freely into the underlying absorbent body. The liquid impermeable bottom layer is used to keep the absorbed liquid in the absorbent body, thereby preventing the absorbed liquid from soiling the wearer pants. In order to increase the absorption capacity, the existing absorbent articles usually increase the thickness of the absorbent body, but increasing the thickness of the absorbent body will result in reduced air permeability, increased cost, and easy breakage of the absorbent body; moreover, the abso...

Claims

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Application Information

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IPC IPC(8): A61F13/15
CPCA61F13/15577
Inventor 谢锡佳王添辉利莉陈宗哲叶俊鸿何瑜梁倩儿
Owner GUANGDONG YINYIN CO LTD
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