| 摘要 |
PURPOSE: To obtain the subject sheet supporter that is useful for flat articles with good dimensional stability by reinforcing a nonwoven sheet made of a chemical textile material with a reinforcing yarn in a specific state. CONSTITUTION: As a nonwoven sheet 8 of 20-500 g/m<2> unit weight is formed by piling up filaments 1, the reinforcing yarns 3 of >=20 GP Young's modulus are arranged in parallel with the longitudinal direction of the sheet and they are bonded with a needler 9, calender 10 or the like. The amount of the reinforcing yarns is set so that the breakage of the reinforcing yarns may occur at least under the stress of 80 daN/m width, when the supporter undergoes the tensile force in the longitudinal direction at 180 deg.C, while the Young's modulus of the supporter is retained so that its deviation may not be detected at the ambient temperature. |
