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Reverse osmosis preventing type paper diaper

A technology of anti-reverse osmosis and paper diapers, which is applied in the fields of medical science, clothing, underwear, etc., and can solve problems such as reverse osmosis

Inactive Publication Date: 2018-06-22
刘瑞芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The study found that there is still a reverse osmosis phenomenon when the polymer composite core is applied to diapers

Method used

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  • Reverse osmosis preventing type paper diaper
  • Reverse osmosis preventing type paper diaper
  • Reverse osmosis preventing type paper diaper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1a

[0051] Embodiment 1a: an anti-reverse osmosis membrane 31 , comprising an outer layer 311 , an intermediate layer 312 and an outer layer 311 arranged in sequence. The anti-reverse osmosis membrane 31 is prepared by the following method:

[0052] ① Cotton fiber, commercially available cotton fiber is pre-treated with ethanol aqueous solution before use, and the specific steps are:

[0053] Put the cotton fiber into the pretreatment container, add the ethanol aqueous solution with the purity of ethanol as 85wt%, take out the cotton fiber after soaking for 0.5 hr, and dry it by blowing at 35°C; the mass ratio of cotton fiber and ethanol aqueous solution is 1:2.5;

[0054] 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 fiber into a mixing c...

Embodiment 1b

[0061] Embodiment 1b: An anti-reverse osmosis membrane 31 , comprising an outer layer 311 , an intermediate layer 312 and an outer layer 311 arranged in sequence. The anti-reverse osmosis membrane 31 is prepared by the following method:

[0062] ① Cotton fiber, commercially available cotton fiber is pre-treated with ethanol aqueous solution before use, and the specific steps are:

[0063] Put the cotton fiber into the pretreatment container, add the ethanol solution with the purity of 75wt% ethanol, take out the cotton fiber after soaking for 2 hours, and blow dry at 40°C; the mass ratio of cotton fiber and ethanol solution is 1:3.0;

[0064] 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 fiber into a mixing container, add the prescribe...

Embodiment 1c

[0071] Embodiment 1c: a kind of anti-reverse osmosis membrane 31, differs from embodiment 1a in that before the mixture I is mixed, the cotton fiber is not pre-treated by soaking in an aqueous ethanol solution, that is, the cotton fiber directly adopts commercially available cotton fiber.

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Abstract

The invention discloses a reverse osmosis preventing type paper diaper. The reverse osmosis preventing type paper diaper comprises a paper diaper body and is characterized in that the paper diaper body comprises a contact part, a flow guide plate, an absorption part and a leakage preventing part which are sequentially arranged from top to bottom; each of the contact part and the flow guide part isproduced by hydrophilic nonwoven fabric and PE nonwoven fabric; the absorption part comprises a reverse osmosis preventing membrane, an upper toilet paper layer, a fluff pulp layer and a lower toiletpaper layer which are sequentially arranged from top to bottom, and a sodium polyacrylate layer is embedded into the fluff pulp layer; the leakage preventing part comprises an isolation membrane produced by a PE membrane and isolation cloth symmetrically arranged on two sides of the isolation membrane, and the isolation cloth is produced by PE nonwoven cloth; the reverse osmosis preventing membrane comprises a middle layer and outer layers, the middle layer is formed by spraying a PTFE dispersion emulsion, the outer layers are symmetrically arranged on two sides of the middle layer, and eachouter layer is produced by hydrophilic nonwoven fabric embedded with a mixture I; the mixture I capable of preventing reverse osmosis comprises cotton fibers, glycerin, sea buckthorn fruit oil, shea butter, nano calcium carbonate, microcrystalline cellulose and lactose.

Description

technical field [0001] The invention relates to an anti-reverse diaper. 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 phenomenon of reverse osmosis still exists when the polymer composite core is applied to diapers. Contents of the invention [0005] The object of the present invention is to provide an anti-reverse seepage diaper, which has the adv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/496A61F13/53A61F13/15A61L15/40A61L15/28A61L15/18A61L15/42
CPCA61F13/15577A61F13/496A61F13/53A61F13/539A61F2013/15544A61F2013/530868A61L15/18A61L15/28A61L15/40A61L15/42C08L1/04
Inventor 刘瑞芳
Owner 刘瑞芳