Heat-sensitive stencil sheet

Details Heat-sensitive stencil sheet Heat-sensitive stencil sheet

1997-05-09

2000-02-15

Raimund, Christopher

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Woven fabric

Woven fabric with a preformed polymeric film or sheet

442395, 428913, B32B 2712

Patent

active

060252863

ABSTRACT:
A heat-sensitive stencil sheet comprises a fibrous support of polyester fibers, and a polyester film, wherein both the orientation parameter (R1) of the film and the orientation parameter (R2) of the fibers respectively obtained by laser Raman spectrometry are in a range from 3 to 10. A method for manufacturing such a heat-sensitive stencil sheet comprises thermally bonding an undrawn polyester film and a fibrous support of undrawn polyester fibers to form a laminate and then stretching the laminate, wherein, during the bonding or during the stretching, the film and the fibrous support of the laminate are heated at different temperatures, respectively.

REFERENCES:
patent: 5643680 (1997-07-01), Osaki et al.

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