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Absorber and absorbent article using the same

An absorbent and water-absorbing technology, applied in absorbent pads, drug delivery, transportation and packaging, etc., can solve the problem of not being able to confirm the deodorant effect, and achieve the effect of excellent deodorization effect.

Active Publication Date: 2014-10-29
LIVEDO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when an antibacterial cationic surfactant is used in an absorbent body, there is a problem that a desired deodorant effect cannot be confirmed.

Method used

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  • Absorber and absorbent article using the same
  • Absorber and absorbent article using the same
  • Absorber and absorbent article using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0111] The present invention will be described in detail through the following examples, but the present invention is not limited by the following examples, and changes and implementations within the scope of the gist of the present invention are all included in the scope of the present invention.

[0112] (Preparation of absorber)

[0113] The cationic surfactants shown in Table 1 were coated on the surface of a water-absorbing layer comprising a crosslinked polymer having acrylic acid as a main constituent and at least a part of its carboxyl groups neutralized as a water-absorbing resin powder. The absorbent layer is sandwiched between the first sheet as a liquid-permeable top sheet and the second sheet as a polyethylene film back sheet to manufacture an assembled absorbent body, and the absorbent body is fixed at the waist with a pressure-sensitive tape when worn. .

[0114] Table 1

[0115]

[0116] SAP1: Water-absorbent resin powder obtained by neutralizing a part of...

Embodiment approach 1

[0130] An absorbent comprising, as a water-absorbent resin powder, a cross-linked polymer mainly composed of acrylic acid and at least a part of its carboxyl groups neutralized, and an antibacterial cationic surfactant, wherein the antibacterial cationic The type surfactant is a compound neutralized with an acid whose acid dissociation constant pKa in water at 25°C is 3.0 to 5.5.

Embodiment approach 2

[0132] The absorbent body according to Embodiment 1, wherein the antibacterial cationic surfactant is coated on at least a part of the water absorbent resin powder.

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Abstract

To provide an absorbent body and an absorbent article having excellent deodorization effect. The present invention provides an absorber comprising, a crosslinked polymer mainly composed of acrylic acid and having carboxyl groups thereof being at least partially neutralized as a water-absorbent resin powder, and an antibacterial cationic surfactant, wherein the antibacterial cationic surfactant is a compound neutralized with an acid having an acid dissociation constant pKa in water at 25 degrees centigrade in a range from 3.0 to 5.5.

Description

technical field [0001] The present invention relates to a technique for improving the deodorizing performance of absorbent articles such as disposable diapers and sanitary napkins, and absorbent bodies. Background technique [0002] Absorbent articles such as diapers, sanitary napkins, and incontinence pads are used to absorb and retain bodily fluids such as urine and menstrual blood excreted from the human body. However, it is necessary to take measures against the unpleasant odor emitted from the absorbent article during use or when it is discarded after use. [0003] For example, Patent Document 1 discloses an absorbent product comprising a liquid-permeable top sheet, a back sheet, and an absorbent core positioned between the top sheet and the back sheet, characterized in that the absorbent product Comprising both deodorant systems and absorbent gelling materials with metal silicates (excluding transition metals) or silica with a molecular weight above 136. Patent Docum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L15/46A61L15/60
CPCA61L15/60A61L15/46Y10T428/249991C08L33/08A61L15/24A61L2400/00
Inventor 太田义久西田素子池内昌俊
Owner LIVEDO CORP
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