Method for counteracting curling tendency of gas barrier film, method for producing gas barrier film, and method for producing electronic device
AssigneeFUJIFILM Corporation
InventorTomoo Murakami
Life of this patent
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Abstract
A method for counteracting the curling tendency of a gas barrier film having a tendency to curl up with a support side thereof facing inside, comprising (1) heating the gas barrier film from the support side thereof to thereby control the support temperature to fall between Tg and Tg+40° C., and (2) conveying the film in the roller circumferential direction within one second after the temperature of the support has reached Tg, while a part of the gas barrier layer of the gas barrier film is kept in contact with a film surface center part noncontact roller wherein Tg means the glass transition temperature of the support.
Claims20
A method for counteracting the curling tendency of a gas barrier film which comprises a support formed of a thermoplastic resin, and a gas barrier layer comprising at least one organic layer and at least one inorganic layer and which has a tendency to curl up with the support side thereof facing inside;
- the method comprising:
- heating the gas barrier film from the support side thereof to thereby control the support temperature to fall between Tg and Tg+40° C., and
- conveying the film in the roller circumferential direction within one second after the temperature of the support has reached Tg, while a part of the gas barrier layer of the gas barrier film is kept in contact with a film surface center part noncontact roller wherein Tg means the glass transition temperature of the support.
A method for producing a gas barrier film with an adhesive layer comprising:
- heating a gas barrier film which comprises a support formed of a thermoplastic resin, and a gas barrier layer comprising at least one organic layer and at least one inorganic layer and which has a tendency to curl up with the support side thereof facing inside, from the support side thereof to thereby control the support temperature to fall between Tg and Tg+40° C.,
- conveying the film in the roller circumferential direction within one second after the temperature of the support has reached Tg, while a part of the gas barrier layer of the gas barrier film is kept in contact with a film surface center part noncontact roller wherein Tg means the glass transition temperature of the support, and
- and continuously forming an adhesive layer on the gas barrier film without winding up.
A method for producing an electronic device, comprising sealing up electronic elements by the use of a film obtained by:
- heating a gas barrier film which comprises a support formed of a thermoplastic resin, and a gas barrier layer comprising at least one organic layer and at least one inorganic layer and which has a tendency to curl up with the support side thereof facing inside, from the support side thereof to thereby control the support temperature to fall between Tg and Tg+40° C., and
- conveying the film in the roller circumferential direction within one second after the temperature of the support has reached Tg, while a part of the gas barrier layer of the gas barrier film is kept in contact with a film surface center part noncontact roller wherein Tg means the glass transition temperature of the support.
Dependencies are inferred from the claim text.