TH41423A - Improved wet absorbent material. - Google Patents

Abstract

DC60 (19/01/43) This invention provides an adsorbent (10) with longitudinal (26) and lateral (24) orientations. The adsorbent consists of a liquid-permeable top layer (28), a liquid-impermeable back layer (30), and an adsorbent structure (32) with a primary containment (48) sandwiched between the top and back layers. The containment (48) consists of a wetted mixture of special adsorbent materials. The containment has a selected margin compression value, for example, a maximum of 9 g/g/m², and a modified circular bend value, for example, a minimum of 0.3 g/g/m². A special feature is that the containment (48) is composed of cellulose fibers. This invention provides an adsorbent (10) with longitudinal (26) and lateral (24) orientations. The adsorbent consists of a liquid-permeable top layer (28), a liquid-impermeable back layer (30), and an adsorbent structure (32) with a primary containment (48) sandwiched between the top and back layers. The containment (48) consists of a wetted mixture of special adsorbent materials. The containment has a selected margin compression value, for example, a maximum of 9 g/g/m², and a modified circular bend value, for example, a minimum of 0.3 g/g/m². A unique feature is that the containment (48) is composed of cellulose fibers.

Claims (19)

1. Adsorbent with longitudinal and lateral orientations. The adsorbent consists of a permeable top layer, an impermeable back layer, and a containment layer sandwiched between the top and back layers. The containment layer comprises a wet mixture of special absorbent material and fibers, with a maximum compression coefficient of no more than 9 g/g/m² and a modified circular bending value of at least approximately 0.3 g/g/m². 2. The adsorbent under claim 1, in the containment portion, shall have a compression coefficient at the edges not exceeding 6 g/g per square meter. 3. The adsorbent under Claim 1, in the containment portion, shall have a compression coefficient at the edges not exceeding 3 g/g per square meter. 4. The adsorbent under claim 1, in the containment portion, shall have a compression coefficient at the edge of at least approximately 0.4 g/g/m². 5. The absorbent portion under Claim 1 shall contain at least 3 wt% of the special absorbent material. 6. The adsorbent under claim 1, in the containment portion, shall contain at least 30 wt% special adsorbent material. 7. The absorbent material under Reputation 1, the containment portion, shall contain separate binder material, apart from the absorbent fibers and special polymer materials. The binder material shall not exceed 25 wt% as defined for the total weight of the containment portion. 8. The adsorbent under claim 1, the containment portion, shall contain synthetic polymer fibers. The synthetic fibers shall be longer than 2 mm. The amount of synthetic fibers shall not exceed 50 wt% of the total amount of fibrous material in the containment portion. 9. The adsorbent under claim 1, the containment portion, shall consist of rigid cellulose fibers. 10. The absorbent material under claim 1, the containment portion, shall contain not more than 50 wt% of the total amount of fibrous material in the containment portion, which is coiled hydrophilic synthetic fibers. 11. The adsorbent material under Claim 1, in its containment portion, shall have a dry thickness of no more than 3 cm. 12. The adsorbent material under claim 1, in the containment portion, shall have a dry density not exceeding 0.6 g/cm². 13. The adsorbent under claim 1, the confinement portion, will have a dry tensile strength of at least approximately 0.7 N/cm², which is determined along the longitudinal direction of the adsorbent. 14. The adsorbent under claim 1, the containment portion, shall have an additional layer of cellulose fiber matrix containing not more than 50 wt% of special adsorbent material. 15. The adsorbent under Claim 1, an additional layer sheet, will be positioned on the outside of the containment area. 16. The adsorbent under claim 14, an additional layer sheet, shall be positioned on the lateral side of the body of the containment portion. 17. The adsorbent under claim 1, the containment portion, shall consist of an additional containment layer sheet containing a cellulose fiber matrix packed with no more than 80 wt% of the special adsorbent material. 18. The absorbent under Premise 1 shall consist of a front waist strap, a back waist strap, and an intermediate section connecting internally to the front and back waist straps. 19. The adsorbent under Claim 1 shall also consist of a ripple-manipulating layer and be positioned on the outside of the top layer.