Absorbent barrier sheet and method of making same

Details Absorbent barrier sheet and method of making same Absorbent barrier sheet and method of making same

A - Human Necessities

61

F

A61F 13/15 (2006.01)

Patent

CA 2286685

An absorbent barrier sheet (10) includes an integral fabric web (12) and a vinyl barrier material (14) intimately connected to and across the integral fabric web (12). The web (12) includes an upper portion (16) and a lower portion (18), with the upper portion including a plurality of hydrophobic first yarns (20) and the lower portion including a plurality of fluid-retaining second yarns (22). In addition, the web (12) has a middle portion (24) which includes a set of ground yarns (26) and parts of the hydrophobic and fluid-retaining yarns (20, 22), with the ground yarns (26) integrating the hydrophobic and fluid-retaining yarns (20, 22) of the upper and lower portions (16, 18), thereby forming the integral fabric web (12). The vinyl barrier material (14) is intimately connected to and across the fluid-retaining lower portion (18) of the integral fabric web (12). In this fashion, fluid at the top of the absorbent barrier sheet (10) tends to wick downward towards the fluid-retaining portion (18), whereby the top of the sheet tends towards dry. And because the sheet (10) includes the vinyl barrier material (14), the bottom of the sheet (10) remains dry.

Cette invention se rapporte à une feuille barrière absorbante (10), qui comprend une bande de tissu monobloc (12) et un matériau barrière en vinyle (14) intimement associé à la bande de tissu monobloc (12) à travers elle. La bande (12) comporte une partie supérieure (16) et une partie inférieure (18), la partie supérieure contenant plusieurs premiers fils hydrophobes (20) et la partie inférieure contenant plusieurs seconds fils de retenue de fluide (22). La bande (12) comporte en outre une partie médiane (24) qui contient un ensemble de fils de fond (26) et des parties des fils hydrophobes et de retenue de fluide (20, 22). Dans ces fils de fond (26) sont intégrés les fils hydrophobes et de retenue de fluide (20, 22) des parties supérieures et inférieures (16, 18), formant ainsi la bande de tissu monobloc (12). Le matériau barrière en vinyle (14) est intimement associé à la partie inférieure de retenue de fluide (18) de la bande de tissu monobloc (12), à travers elle. Ainsi, le fluide se trouvant dans le haut de la feuille barrière absorbante (10) a tendance à descendre vers le bas par effet de mèche en direction de la partie de retenue de fluide (18), le haut de la feuille ayant ainsi tendance à sécher. En outre, dès lors que la feuille (10) contient le matériau barrière en vinyle (14), le bas de la feuille (10) reste sec.

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