Claims
- 1. A method for making a coated sheet of elastic material for photographic film for subsequent application to a relatively non-elastic support, said method comprising the steps of:
- applying a layer of relatively elastic material to a relatively inelastic sheet to provide dimensional stability to the elastic layer;
- coating at least one layer of photographic material onto said elastic layer; and
- stripping said relatively inelastic sheet from said relatively elastic material.
- 2. A method for making an elongated, filmstrip having two superposed sheets coated with photographic material joined at their lateral edges and wound in a roll, said method comprising the steps of:
- forming one of said sheets by applying a relatively elastic material to a relatively inelastic support;
- coating said elastic material with photographic materials;
- sealing the lateral edges of said elastic material to the other of said sheets; and
- stripping said inelastic support from said elastic material.
- 3. A method for making an elongated, helically wound filmstrip having two superposed sheets coated with photographic material joined at their lateral edges and wound in a roll, said method comprising the steps of:
- forming one of said sheets by coating a relatively inelastic support with a layer of polyethylene;
- coating said polyethylene layer with photographic materials;
- sealing the lateral edges of said polyethylene layer to the other of said sheets; and
- stripping said inelastic support from said polyethylene layer.
- 4. The method defined in claim 3 wherein said polyethylene layer is applied at an approximate temperature of 300.degree. C.
Parent Case Info
This is a division of application Ser. No. 215,889, filed Dec. 12, 1980, now U.S. Pat. No. 4,374,195.
US Referenced Citations (6)
Non-Patent Literature Citations (1)
Entry |
Research Disclosure, Vol. 192, Apr. 1980, No. 19219, Industrial Opportunities Ltd., Homewell, Havant, Hampshire, United Kingdom. |
Divisions (1)
|
Number |
Date |
Country |
Parent |
215889 |
Dec 1980 |
|