Composite absorbent paper for absorbent sanitation products and preparation method and application of composite absorbent paper

A hygienic product and absorbent technology, applied in the field of composite absorbent paper for absorbent products, can solve the problems of reduced wearing comfort, reduced surface dryness, affected absorption speed, etc., to improve adhesion performance, reduce leakage, lock water power effect

Active Publication Date: 2015-02-25
TIANJIN SINOSH NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the core body encounters urine, the upper layer of polymer absorbs water and expands rapidly, causing gel blockage, seriously affecting the secondary absorption rate, and resulting in a decrease in the dryness of the surface layer
[0006] The upper and lower layers of the absorbent core are bonded to the fluffy non-woven fabric in the middle by hot-melt adhesive. If the amount of sizing is small, the hot-melt adhesive adheres to the polymer water-absorbing resin, so that the upper dense sheet and the lower dense sheet cannot be bonded to the fluffy non-woven fabric. combined, resulting in loose layers of the absorbent core, unable to produce
If the amount of sizing is too much, a layer of water-blocking adhesive layer will be formed between the dust-free paper and the fluffy non-woven fabric, which will affect the absorption speed
[0007] Due to the above disadvantages, the amount of polymer added is limited to a certain extent. In order to improve the absorption characteristics of absorbent products, only wider and longer composite absorbent cores can be used.
The width is widened, the crotch is wider after the product is made, the wearing comfort is reduced, the length is lengthened, and the overall polymer utilization rate is significantly reduced after the product is made

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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  • Composite absorbent paper for absorbent sanitation products and preparation method and application of composite absorbent paper
  • Composite absorbent paper for absorbent sanitation products and preparation method and application of composite absorbent paper
  • Composite absorbent paper for absorbent sanitation products and preparation method and application of composite absorbent paper

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085]

[0086] (1) Select Nippon Shokubai W211 polymer water-absorbing resin, the performance indicators are as follows

[0087]

[0088] (2) Pass through a vibrating sieve and sieve through a 40-mesh screen to form a finer polymer water-absorbent resin larger than 40 mesh and a coarser polymer water-absorbent resin smaller than 40 mesh.

[0089] (3) Adjust the angle of the polymer distribution plate under the first lower hopper so that the width below the formed limiting area is 50% of the width;

[0090] (3) Polymer water-absorbent resin less than 40 meshes is evenly spread on the compact surface of the high-loft non-woven fabric through the polymer lower hopper, and after being glued with the upper dust-free paper coated with hot-melt adhesive on the surface, it is pressed by a pressing roller ;

[0091] (4) Adjust the angle of the polymer distribution plate under the second lower hopper so that the width below the formed restricted area is 80% of the width;

[009...

Embodiment 2

[0095] Absorbent Paper Specifications

[0096]

[0097] (1) Select Nippon Shokubai W211 high-molecular water-absorbing resin, prepare and manufacture according to the existing technology without screening.

[0098] (2) According to the amount of polymer added in the upper layer, it is evenly spread on the compact surface of the high-loft non-woven fabric through the polymer lower hopper, and after being glued with the upper dust-free paper coated with hot-melt adhesive, it is pressed by a pressing roller;

[0099] (4) According to the amount of polymer added in the lower layer, it is evenly spread on the fluffy surface of the high-loft non-woven fabric through the polymer lower hopper, and the polymer water-absorbing resin enters the fluffy surface through horizontal vibration, and the lower non-woven fabric sprayed with hot melt adhesive on the surface After the dust paper is glued and pressed by the pressing roller;

[0100] (5) Slitting and rewinding are vested.

Embodiment 3

[0102]

[0103]

[0104] (1) Select Nippon Shokubai W101 polymer water-absorbing resin, the performance indicators are as follows

[0105]

[0106] Vibrating sieve, screened by 20-mesh, 40-mesh, and 80-mesh sieves to form 20-40 mesh thicker polymer water-absorbent resin and 40-80 mesh finer polymer water-absorbent resin.

[0107] (2) Adjust the angle of the polymer distribution plate under the first lower hopper so that the width below the formed limit area is 50% of the width;

[0108] (2) Polymer water-absorbent resin of 20-40 meshes is evenly spread on the compact surface of the high-loft non-woven fabric through the polymer lower hopper, and after being glued with the upper dust-free paper coated with hot-melt adhesive on the surface, it is pressed by pressing rollers combine;

[0109] (3) Adjust the angle of the polymer distribution plate under the second lower hopper so that the width below the formed limit area is 40% of the width;

[0110] (3) The 40-80 mesh p...

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Abstract

The invention provides composite absorbent paper for absorbent sanitation products. The composite absorbent paper comprises an upper isolation layer, macromolecule absorbent resin, highly-fluffy non-woven fabric and a lower isolation layer. The macromolecule absorbent resin comprises upper macromolecule absorbent resin distributed between the upper isolation layer and the highly-fluffy non-woven fabric and lower macromolecule absorbent resin distributed between the highly-fluffy non-woven fabric and the lower isolation layer, and the upper macromolecule absorbent resin and the lower macromolecule absorbent resin are combined in a gluing or thermal combining manner. The macromolecule absorbent resin is characterized in that macromolecules are unevenly distributed in breadth, and a central area with high macromolecule distribution density exists from a central axis to two sides. Due to the fact that the macromolecules form effective distribution gradient in the absorbent paper, the absorbing performance of the absorbent paper can be improved evidently, the utilization rate of the macromolecules is increased, and production cost is lowered.

Description

technical field [0001] The invention belongs to the field of disposable hygiene products, and in particular relates to composite absorbent paper for absorbent products. Background technique [0002] The core of diapers is the core part to ensure the function of absorbing and locking water. The core of traditional diapers is made of a mixture of polymer water-absorbing materials and wood pulp, which is covered with wet-strength paper or hydrophilic spunbonded non-woven fabrics. Cotton core absorbers The thickness is relatively thick, and such a material and structure, after absorbing water, the water is easy to accumulate in the water injection part and is not easy to spread. Due to the influence of gel retardation, the utilization rate of polymer water-absorbing materials is low, and the water-locking ability also has certain limitations. At the same time, Because the structure of this material is relatively loose, once it absorbs water, it will form lumps and faults. After ...

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): A61F13/53A61L15/60
CPCA61F13/15203A61F13/15585A61F13/53A61F2013/530131A61F2013/530189A61F2013/530708A61F2013/530737A61L15/60
Inventor 韩海星陈奎王丽华周静
Owner TIANJIN SINOSH NEW MATERIAL TECH
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