TH39779A - Disposable absorbent pieces for body fluids. - Google Patents

Abstract

DC60 (29/06/42) Disposable body fluid absorbent pieces include a 4-strand absorbent core composed of 13 non-contiguous particles. These 13 non-contiguous particles consist of the first polymer particle, 13A, which has a lower initial water absorption rate, and the second polymer particle, 13B, which has a lower initial water absorption rate than the first polymer particle, 13A. The first polymer particle, 13A, is distributed specifically in the region defined by the bottom 1/2 of the core thickness.

Claims (3)

1. The absorbent material consists of: a permeable top layer, an impermeable back layer, and an absorbent core with a side facing the body and a side facing the garment, positioned between the permeable top layer and the impermeable back layer. This core contains approximately 100 to 200 g/m² of fluff, approximately 20 to 45 g/m² of thermoplastic synthetic fibers, and approximately 120 to 400 g/m² of non-adhesive, highly absorbent polymer particles. The fluff and synthetic fibers are present in a mixed state so that the relative ratio of the fluff and synthetic fibers in the core decreases minimally from the side facing the body to the side facing the garment in the direction of the core thickness. The polymer particles consist of approximately 20 to 100 g/m² of the first polymer particle. The first polymer particles had an initial water absorption rate V of approximately 40 or higher, and approximately 100 to 300 g/m² of the second polymer particles had an initial water absorption rate V of approximately 5 to 20. All of the first polymer particles were dispersed in the area below the side facing the garment of the aforementioned axis, while approximately 100 to 200 g/m² of these polymer particles were in the area above the side facing the body of the aforementioned axis, and no more than approximately 100 g/m² of the second polymer particles were dispersed in the area below. 2. The material according to claim 1, where the first polymer particles are concentrated at the bottom of the core and in its vicinity, so that these first polymer particles swell and aggregate after water absorption, forming a gel-like mass that spreads throughout the bottom of the core. 3. The material referred to in Claim 1, with a core thickness of approximately 0.7 to approximately 7 mm.