发明名称 |
Antistatic backing for photographic roll film |
摘要 |
There is provided a roll film assembly which comprises a length of photographic film having attached to each end thereof a length of backing paper, the film and the backing paper being wound together on a flanged spool, the backing paper being a laminate of paper and polyethylene which comprises as an opaqueing agent a layer of polyethylene which comprises from 7 to 10% by weight of carbon black particles of which from 20 to 100% by weight are conductive carbon particles.
|
申请公布号 |
US5360701(A) |
申请公布日期 |
1994.11.01 |
申请号 |
US19930049605 |
申请日期 |
1993.04.19 |
申请人 |
ILFORD LIMITED |
发明人 |
ELTON, PETER J.;CLARKE, JOHN C.;CAWSE, JOHN L.;LITTLER, GEORGE;WIGGLESWORTH, ANDREW;HERRING, PETER J. |
分类号 |
B32B27/10;B32B27/18;G03C1/76;G03C3/00;G03C3/02;(IPC1-7):G03C3/02;G03C1/775;G03C1/95 |
主分类号 |
B32B27/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|