Laminated sheet and process for producing the same

摘要

A laminated sheet is produced by forming an adhesion layer permeable to a liquid component and contactable with a skin on at least one side of a liquid-retention layer comprising a nonwoven structural member and having an ability to absorb the liquid component. The adhesion layer comprises a nonwoven structural member comprising a fiber having a number-average fiber diameter of not more than 10 μm, and the thickness ratio of the adhesion layer relative to the liquid-retention layer is 1/4 to 1/100 as a ratio of the adhesion layer/the liquid-retention layer. The fiber of the nonwoven structural member of the adhesion layer may have a standard deviation of fiber diameter of not more than 5. The nonwoven structural member of the liquid-retention layer may comprise a fiber having a fiber diameter larger than that of the fiber of the adhesion layer. The laminated sheet has a liquid retentivity and a liquid releasability in a well-balanced manner, and has an excellent adhesion and an excellent fit to the skin in the state where the sheet is impregnated with a liquid component.

主权项

1. A laminated sheet, comprising a liquid-retention layer, having an ability to absorb a liquid component, and an adhesion layer contactable with a skin,
wherein: the liquid-retention layer comprises a first nonwoven structural member comprising a first fiber; the adhesion layer is formed on at least one side of the liquid-retention layer and is permeable to the liquid component; the adhesion layer comprises a second nonwoven structural member comprising a second fiber; the second fiber has a number-average fiber diameter of 1 to 8 μm; and a thickness ratio of the adhesion layer, relative to the liquid-retention layer, is 1/6 to 1/50 as a ratio of the adhesion layer/the liquid-retention layer and a thickness of the adhesion layer is 10 to 500 μm wherein the first fiber has a fiber diameter larger than that of the second fiber and wherein said liquid-retention layer and said adhesion layer are entangled by a spunlace method or directly blowing a fiber for said adhesion layer to said liquid-retention layer.