Composite sheet
AssigneeUni-Charm Corporation
InventorHiroaki Taniguchi
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Abstract
A composite sheet has a high total light transmittance over its entire region, the composite sheet including a nonwoven fabric formed from thermoplastic synthetic resin fibers and a non-porous and moisture permeable plastic film formed from an ester-based thermoplastic elastomer resin and joined by fusion to one surface of the nonwoven fabric. The composite sheet thus constituted has a total light transmittance of not less than 60% and not greater than 95%.
Claims5
A composite sheet comprising a nonwoven fabric formed from thermoplastic synthetic resin fibers and a plastic film formed from a thermoplastic synthetic resin and joined to one surface of the nonwoven fabric, wherein:
- said film is non-porous, moisture permeable and formed from any of urethane-based, ester-based and amide-based thermoplastic elastomer resins,
- said nonwoven fabric and film both have a total light transmittance of not less than 70% and not greater than 95% when measured according to a JIS K 7105A method,
- said film is joined by fusion to the synthetic resin fibers constituting said nonwoven fabric, and
- said composite sheet has a total light transmittance of not less than 60% and not greater than 95% when measured according to a JIS K 7105A method.
Dependencies are inferred from the claim text.