RAW SHEET FOR PRINTING THERMAL STENCIL

摘要

PROBLEM TO BE SOLVED: To prevent the deformation of or damage to a raw sheet by setting the wet tensile elastic modulus of the sheet for printing thermal stencil having a thermoplastic resin film and a porous support in the vertical direction to the holding rate of the tensile elastic modulus before wetting to a specific rate. SOLUTION: The holding rate of the wet tensile elastic modulus of a raw sheet for printing thermal stencil having a thermoplastic resin film and a porous support in the vertical direction to the elastic modulus before wetting is set to 60% or more. The wet tensile modulus rate in the vertical direction is set to about 1 to 10N/cm. The film is particularly preferably a polyester film, and oriented by a T-die process or an inflation process. The thickness is preferably 0.1 to 5μm from the punchability and film forming stability. The porous support preferably contains synthetic fiber as a main body or particularly preferably polyester fiber in view of resistivity against swelling, and particularly preferably nonwoven fabric in view of the balance of the ink permeability and retentivity. The film is directly thermally adhered to the support.