Multi-ply sheet production method and multi-ply sheet production device
OwnerKikuo YAMADAinventor
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Abstract
Provided is a multi-ply sheet production method and a multi-ply sheet production device for producing a multi-ply sheet which uses an elastic member, exhibits stretchability, and has reduced residual strain. The multi-ply sheet production method includes forming a multi-ply sheet by joining a first fibrous sheet, and a second fibrous sheet including a material containing a cellulose-based component, with an elastic member interposed therebetween, the elastic member being in a stretched state and coated with an adhesive on peripheral surface, and then heat-treating the multi-ply sheet at a temperature in accordance with the thermal characteristics of the adhesive.
Claims8
A multi-ply sheet production method, comprising:
- forming a multi-ply sheet by joining a first fibrous sheet, and a second fibrous sheet comprising a material containing a cellulose-based component, with an elastic member interposed therebetween, the elastic member being in a stretched state and coated with an adhesive on peripheral surface;
- and
- heat-treating the multi-ply sheet at a temperature in accordance with the thermal characteristics of the adhesive.
A multi-ply sheet production device comprising:
- an adhesive coating device configured to coat an elastic member with an adhesive;
- a pressing device configured to sandwich the elastic member coated with the adhesive between a first fibrous sheet, and a second fibrous sheet comprising a material containing a cellulose-based component, and press to form a multi-ply sheet;
- and
- a heating device configured to heat-treat the multi-ply sheet at a temperature in accordance with the thermal characteristics of the adhesive.
Dependencies are inferred from the claim text.