Film stretching apparatus and film stretching method
AssigneeFuji Photo Film Co., Ltd.
InventorsNobuyuki Suzuki, Kazunori Osaki, Hitoshi Ikeda, Toshinao Arai
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Abstract
In a tenter dryer, while a film is dried, the stretch or the relaxation of the film are made. The tenter dryer includes first-third drying chambers for independently controlling the drying conditions and a shiftable stretch/relaxation device for making the stretch and the relaxation of the film with holding the film. When the stretch/relaxation device holds four edges, cutter blades provided in a drying nozzle cut the film to sheet films. Then while holding the film, the stretch/relaxation device moves between the first-third drying chambers in which drying conditions are previously controlled.
Claims26
A film stretching apparatus comprising:
- a cutting device for cutting a continuous film to sheet films;
- and
- a stretching device for stretching each of said sheet films to a predetermined direction.
A film stretching apparatus comprising:
- a drying chamber for drying a film containing a solvent or a water;
- a cutting device for cutting said film to sheet films before or during the drying;
- and
- a stretching device for stretching said sheet film in a predetermined direction in said drying chamber.
A film stretching apparatus comprising:
- plural drying chambers for drying a film containing a solvent or a water;
- a cutting device for cutting said film to the sheet films before or during the drying;
- and
- a stretching device for stretching said sheet film in a predetermined direction in said drying chambers.
A film stretching method comprising steps of:
- cutting a continuous film to sheet films;
- and
- stretching each of said sheet films in a predetermined direction.
A film stretching method comprising steps of:
- drying a film;
- cutting said film to sheet films before or during the drying;
- and
- stretching said sheet film in a first direction.
Dependencies are inferred from the claim text.