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Anti-ion type composite moisture absorption core

An ionic, absorbent core technology, which is applied in the fields of absorbent pads, medical science, textiles and papermaking, etc., can solve the problems of complex preparation process and high technical content of formula, achieve simple preparation process, increase production and use costs, and improve absorption effect of ability

Inactive Publication Date: 2014-07-09
JIANGSU MIKA BABY PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the application of polyurethane flexible foam as a functional composite material in disposable sanitary products can greatly improve the salt resistance and absorption rate of disposable sanitary products, reduce the amount of superabsorbent resin used, and prevent liquid seepage. Leakage, with high application value and economic benefits, but the material formulation of the invention has a high technical content, and the preparation process is relatively complicated

Method used

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  • Anti-ion type composite moisture absorption core
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  • Anti-ion type composite moisture absorption core

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] In order to further understand the present invention, now in conjunction with the attached figure 1 , 3 Describe it in detail.

[0044] (1) After carding the wood pulp fluff short fibers and thermoplastic short fibers into a web, spray a superabsorbent resin on the fiber web to form the absorbent core layer 3 of the composite hygroscopic core 1;

[0045] (2) Place the high-performance ion exchange membrane 8 on the absorbent core layer 3, and carry out hot air penetration in an oven at 140-160°C to melt the thermoplastic short fibers, so that the thermoplastic short fibers and the thermoplastic short fibers Bonding points are formed between the superabsorbent resin and between the thermoplastic short fiber and the ion exchange membrane material, and are subjected to pressure bonding to form a composite moisture-absorbing core 1 .

[0046] (3) According to product needs, the composite moisture-absorbing core can be cut into a rectangular shape.

Embodiment 2

[0048] as attached figure 1 , 4 Shown, a kind of composite hygroscopic core body of the present invention, its preparation method is as follows:

[0049] (1) After combing the wood pulp fluff short fibers and thermoplastic short fibers into a net, spraying ion exchange resin on the fiber net to form the ion exchange layer of the composite moisture-absorbing core;

[0050] (2) After combing the wood pulp fluff short fibers and thermoplastic short fibers into a web, spraying a superabsorbent resin on the fiber web to form the absorbent core layer of the composite hygroscopic core;

[0051] (3) The ion exchange layer material formed in step (1) or the absorbent core layer material formed in step (2) can be shaped by spraying latex or hot-melt pressure-sensitive adhesive.

[0052] (4) Latex or hot-melt pressure-sensitive adhesive is sprayed between the joint surfaces of the upper and lower structural materials for shaping and compounding to obtain a composite moisture-absorbing ...

Embodiment 3

[0055] as attached figure 2 , 5 As shown, the ion exchange layer material and the absorbent core layer material of the composite moisture-absorbing core are obtained according to the process of steps (1) and (2) of Example 2, and then the heat-setting treatment is adopted.

[0056] After the above-mentioned absorbent core layer material, ion exchange layer material and absorbent core layer material are superimposed in sequence, hot air is penetrated in an oven at 140-160°C to melt the thermoplastic short fibers, so that between the thermoplastic short fibers, Bonding points are formed between the thermoplastic short fibers and the superabsorbent resin, and between the thermoplastic short fibers and the wood pulp fluff short fibers, and are bonded and molded by thermocompression to obtain a composite moisture-absorbing core body with a three-layer structure.

[0057] Similarly, the composite moisture-absorbing core can be cut into a dumbbell-shaped shape according to product ...

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Abstract

The invention discloses an anti-ion type composite moisture absorption core. The anti-ion type composite moisture absorption core comprises an ion exchanging layer and an absorption core layer, wherein the ion exchanging layer consists of a porous type adsorption separation material, a cation exchange capacity is 1.5-6.8mmol / g, the gram weight of the composite moisture absorption core is 25-600g / m<2>, the multiplying power of absorbed normal saline is 60-600g / g, and the porous type adsorption separation material is a porous type high-performance ion exchange membrane material, or porous type granular aluminum oxide, or is formed by filling discrete 2-60% of an ion exchange resin by mass into a porous type fiber network formed by 30-70% of thermoplastic short fibers and 0-30% of wood pulp wool fibers. The composite moisture absorption core is of a structure with two or more layers and is rectangle-shaped or dumbbell-shaped, and the composite moisture absorption core is applied to fields of paper diapers, sanitary towels or pet pads.

Description

technical field [0001] The invention relates to the technical field of disposable hygiene products, in particular to a disposable moisture-absorbing core, in particular to a composite moisture-absorbing core with anti-ion function. Background technique [0002] As we all know, the absorption carrier of body fluids in sanitary products is mainly borne by superabsorbent resins, and the superabsorbent resins used in sanitary products are mainly polyacrylamide and polyacrylic acid (salt) resins, among which polyacrylic acid (salt) Superabsorbent resins occupy a dominant position in the world's superabsorbent resin market, accounting for more than 80% of the world's total SAP production. However, although polyacrylic acid (salt) superabsorbent resins have the advantages of faster water absorption, higher water absorption ratio, and good heat resistance than other synthetic superabsorbent resins, polyacrylic acid (salt) superabsorbent resins are high Molecular electrolytes have p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/53A61F13/42A61L15/40A61L15/24A61L15/22A61L15/18
CPCA61F13/53A61F2013/424A61F2013/530145A61F2013/530233A61L15/18A61L15/20A61L15/40A61L15/42A61L15/60D04H1/26D04H1/407D04H1/542
Inventor 周丕严张颂曜刘榕城
Owner JIANGSU MIKA BABY PROD
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