发明名称 |
PRINTER RIBBON AND FILM USED FOR PREPARATION THEREOF |
摘要 |
PRINTER RIBBON AND FILM USED FOR PREPARATION THEREOF Disclosed is a film for a printer ribbon, which is made of a resin composition comprising, 55 to 95% by weight of high-density polyethylene and 5 to 45% by weight of low-density polyethylene and having a melt tension of at least 1.4 g and a density of 0.94 to 0.96 g/cm3. The film is made by the T-die-chill roll method wherein a good stability at both ends of the extruded molten resin film is maintained to prevent the occurrence of an uneven thickness or formation of wrinkles, and wherein undesirable engulfment of air between the molten resin film and the chill roll is avoided. |
申请公布号 |
CA1298015(C) |
申请公布日期 |
1992.03.24 |
申请号 |
CA19870543250 |
申请日期 |
1987.07.29 |
申请人 |
SHOWA DENKO KABUSHIKI KAISHA |
发明人 |
KARATSU, MAKOTO;GOTO, SUMIO |
分类号 |
B41J31/00;B41M5/025;B41M5/10;B41M5/382;B41M5/40;B41M5/41;C08J5/18;C08L23/06 |
主分类号 |
B41J31/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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