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.
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.
Abstract:
A laminated polyphenylene sulfide film wherein the central layer comprises a biaxially oriented polyphenylene sulfide film and the surface layer comprises a phenylene sulfide copolymer containing a comonomer unit other than a p-phenylene sulfide unit in an amount of 3 to less than 50 mole %. The film has improved bondability, particularly heat sealability, without detriment to the heat resistance and mechanical properties inherent in a biaxially oriented polyphenylene sulfide film.
Abstract:
The specification discloses a thermal stencil paper for mimeograph, having a uniform shape of pores and well-balanced retainability and permeability of printing ink. Thermal stencil paper for mimeograph formed by laminating a porous support member comprising polyester fibers on one surface of a polyester film, characterized in that the porous support member forms a reticulate body having a fusing point at which the fibers are fused to one another, a film which straddles the fibers, and which has a thickness smaller than an average fiber diameter, being formed at some of the fusing points in the reticulate body. Since such thermal stencil paper for mimeograph is provided, the printed matter obtained by a mimeograph using this stencil paper has a high quality of image, and set-off does not occur. Such printed matter is highly convenient to transport.
Abstract:
A fiber sheet impregnated with a resin composition mainly comprising poly-p-phenylene sulfide and having the degree of orientation of 0.3 to 0.9. The sheet is markedly improved in thermal resistance, thermal dimensional stability, dielectric characteristics and mechanical properties when folded, thus being suited for use as insulation base material for circuit boards and multilayer interconnection boards wherein higher-density and thinner circuits are necessitated.
Abstract:
PROBLEM TO BE SOLVED: To provide a while laminated polyester film for thermal transfer recording, excellent in whiteness, printing property, antistatic properties, light resistance and adherence durability. SOLUTION: In the white laminated polyester film provided on at lest one side of a white polyester layer (B) containing fine bubbles with a white polyester layer (A), the white polyester layer (B) contains a light-resistant agent and a surface specific resistance of the same measured from the white polyester layer (A) side is 1012 Ω/(square) or less.
Abstract:
PROBLEM TO BE SOLVED: To provide a composite sheet for coating a glass surface which excellently prevents a dew drop, shows good adhesion to glass and has heat insulation, light blocking, noise insulation and design. SOLUTION: A composite sheet for coating a glass surface comprises a film portion made of a polyester and a non-woven fabric portion made of a polyester, both being bonded to each other, wherein an average fiber diameter of the fiber of the non-woven fabric is 1 to 20 μm and glossiness of the surface of the film portion different from the surface bonded to the non-woven fabric portion is not less than 60.
Abstract:
PROBLEM TO BE SOLVED: To provide a metal vapor deposition composite sheet high in the peel strength of a film and a nonwoven fabric and excellent in the glossiness of a metal vapor deposition surface. SOLUTION: The metal vapor deposition composite sheet is constituted by bonding the thermoplastic film and the nonwoven fabric through an adhesive and a metal layer is formed on the surface on the side opposite to the bonding surface with the nonwoven fabric of the film.
Abstract:
PROBLEM TO BE SOLVED: To eliminate lowering with time of the surface smoothness of base paper for stencil printing wound up in the shape of a roll and thereby to provide the base paper for thermal stencil printing which causes no perforation fault even when printing is made by a model of high resolution, and thus enables attainment of a beautiful printed image. SOLUTION: This base paper for thermal stencil printing is constituted of a thermoplastic resin film and a porous substrate and the hardness of winding thereof on the occasion of being wound up in the shape of a roll is 30-80.
Abstract:
PROBLEM TO BE SOLVED: To provide a heat-sensitive stencil printing film and a heat-sensitive stencil printing master of superior perforation properties under the low energy, printability and carrying properties and of little change with time generated by the effect of temperature and humidity. SOLUTION: A heat-sensitive stencil printing film is constituted of a polymer layer composed mainly of a polylactic acid and another polymer layer containing the polylactic acid of less than 50 wt.% laminated together, and a heat-sensitive stencil printing master is formed of the above laminated film bonded with a porous substrate.