Absorption-type article

Abstract

The invention relates to an absorption-type article, and the technical problem comprises improvement of the absorption speed of the absorption-type article with a chamber absorber. The technical problems can be solved by the absorption-type article with the absorber 50, wherein the absorber 50 has a plurality of chambers 55 and powder granules containing highly absorbent polymer particles 53; theperiphery of the plurality of chambers 55 are surrounded by joints 54 of upper sheets 51 and lower sheets 52, and the upper sheets 51 and the lower sheets 52 are not jointed. The powder granules are contained in the chambers 55; at least one of the upper sheet 51 and the lower sheet 52 in each chamber 55 forms a concave 50c recessing to the outer side of the chamber 55 in an unfolding state; middle sheets 80 formed by a non-woven fabric are clamped between the upper sheets 51 and the lower sheets 52, the middle sheets 80 are compressed in the thickness direction of the joints 54, and the partlocated in each chamber 55 drums partially up to the corresponding concave part 50c.

Description

【Technical field】 [0001] The present invention relates to absorbent articles such as disposable diapers and sanitary napkins. 【Background technique】 [0002] The absorbent article includes an absorbent body and a liquid-permeable topsheet covering the surface side of the absorbent body, and excretion fluid such as urine or menstrual blood passes through the topsheet and is absorbed and held by the absorbent body. As an absorber, absorbers made by mixing superabsorbent polymer particles (SAP) with hydrophilic short fibers such as pulverized pulp and piling them into cotton are widely used. In order to meet the requirements of thinning, weight reduction, and cost reduction, various proposals have been made for an absorbent body having a plurality of chambers (cells) and a high-absorbing body contained in the chambers. The powder body of polymer particles, the plurality of chambers are surrounded by the junction of the liquid-permeable upper sheet and the lower sheet around th...

AI Technical Summary

Problems solved by technology

[0003] In these chamber absorbers, if the volume of the superabsorbent polymer particles in the chamber is sufficiently larger than the volume of each chamber at the time of saturated absorption, the superabsorbent polymer particles fill the chamber at the time of absorption, possibly due to swelling Obstruction and so-called gel clogging reduce the absorption capacity / absorption speed, the cavity may become hard due to the expansion pressure of the superabsorbent polymer particles, and the wearing feeling may be deteriorated. The upper and lower sheets are made of non-woven In the case of cloth formation, superabsorbent polymer particles may leak through the interstices between its fibers

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