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Anti-reverse liquid absorbent core

A technology of anti-reverse osmosis and absorbent core, which can be used in absorbent pads, medical science, bandages, etc., and can solve problems such as reverse osmosis of polymer composite cores

Active Publication Date: 2021-07-09
山东爱舒乐卫生用品有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The research found that the polymer composite core has the phenomenon of reverse osmosis

Method used

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  • Anti-reverse liquid absorbent core
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  • Anti-reverse liquid absorbent core

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1: An anti-reverse seepage type liquid-absorbent core, comprising an absorbent layer 1 bonded by an adhesive layer 3 and an anti-reverse seepage film 2, and the anti-reverse seepage film 2 includes an outer layer 21 and an intermediate layer 22 arranged in sequence and outer layer 21. The anti-reverse seepage type liquid absorbent core is prepared by the following method:

[0038] (1) Preparation of anti-reverse osmosis membrane 2:

[0039] ① Cotton fiber pretreatment: put the cotton fiber into the pretreatment container, add ethanol solution with a purity of 85wt% ethanol, soak for 0.5hr, take out the cotton fiber, and dry it by blowing at 35°C; cotton fiber and ethanol aqueous solution The mass ratio is 1:2.5;

[0040] 2. the preparation of compound I: the cotton fiber, nano-calcium carbonate and microcrystalline cellulose through pretreatment are pulverized respectively, and cotton fiber crosses 5 mesh sieves, and nano-calcium carbonate and microcrystall...

Embodiment 2

[0048] Embodiment 2: An anti-reverse seepage type liquid-absorbent core, comprising an absorbent layer 1 bonded by an adhesive layer 3 and an anti-reverse seepage film 2, and the anti-reverse seepage film 2 includes an outer layer 21 and an intermediate layer 22 arranged in sequence and outer layer 21. The anti-reverse seepage type liquid absorbent core is prepared by the following method:

[0049] (1) Preparation of anti-reverse osmosis membrane 2:

[0050] ① Cotton fiber pretreatment: put cotton fiber into a pretreatment container, add ethanol solution with a purity of 75wt% ethanol, take out the cotton fiber after soaking for 2 hours, and blow dry it at 40°C; Mass ratio 1:3.0;

[0051] 2. the preparation of compound I: the cotton fiber, nano-calcium carbonate and microcrystalline cellulose through pretreatment are pulverized respectively, and cotton fiber crosses 5 mesh sieves, and nano-calcium carbonate and microcrystalline cellulose cross 20 mesh sieves; Put the cotton...

Embodiment 3

[0059] Embodiment 3: An anti-reverse osmosis type liquid-absorbent core, the difference from Embodiment 1 is that in the mixture I, lactose is replaced with an equal amount of cotton fiber.

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Abstract

The invention discloses an anti-reverse osmosis liquid-absorbent core, which comprises an absorbent layer made of superabsorbent polymer, toilet paper and fluff pulp, and an anti-reverse osmotic layer adhesively arranged on one side of the absorbent layer. Reverse osmosis membrane, described anti-reverse osmosis membrane comprises the middle layer that is sprayed by PTFE dispersed emulsion and the outer layer that is symmetrically arranged on both sides of middle layer, and described outer layer is the hydrophilic non-woven fabric that is embedded with compound I The mass ratio of mixture I and hydrophilic non-woven fabric is 20~24:100, and mixture I includes 43~45wt% cotton fiber, 16~18wt% glycerin, 10~11wt% seabuckthorn fruit oil, 10~12wt% shea butter, 7~8wt% avocado fruit oil, 5~6wt% nano-calcium carbonate and 4~5wt% microcrystalline cellulose, which have the advantages of preventing reverse osmosis.

Description

technical field [0001] The present invention relates to liquid-absorbent cores of the anti-reverse seepage type. Background technique [0002] Due to its non-toxic, non-irritating and highly biocompatible characteristics, superabsorbent polymers have been most widely used in the field of medical and sanitary products. People use superabsorbent polymers as absorbent materials to absorb urine, blood, and drugs to make baby diapers (sheets), women's sanitary napkins, adult incontinence products, napkins, pet hygiene products, medical cotton, etc. [0003] The Chinese patent with the authorized announcement number CN101797201B and the authorized announcement date of October 10, 2012 discloses a polymer composite core and a preparation method thereof. [0004] The research found that the polymer composite core has the phenomenon of reverse osmosis. Contents of the invention [0005] The object of the present invention is to provide a liquid-absorbent core of anti-reverse seep...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F13/537A61F13/534A61F13/513
CPCA61F13/51121A61F13/51305A61F13/534A61F13/537A61F13/53708A61F13/5376A61F2013/15463A61F2013/1556A61F2013/530708A61F2013/530759A61F2013/530868
Inventor 刘瑞芳
Owner 山东爱舒乐卫生用品有限责任公司