Fuji Photo Film Company, Limited

Fujifilm Corporation

Shuichi Endo

Kazuhiko Nojo

Kazuo Ozaki

Tomonari Ogawa

Yutaka Kashiwabara

Atsushi Kodou

Daisuke Sano

Toshiharu Kubota

According to the method and the apparatus for curing a coated film of the present invention, since an ionization radiation is applied after the Oconcentration in the near-surface layer within 1 mm above the surface of the coated film is adjusted to 1000 ppm or lower, the coated film can be sufficiently cured by irradiation of the ionization radiation. In other words, according to the method and the apparatus for curing a coated film of the present invention, since the Oconcentration in a thin near-surface layer on the surface of a coated film is decreased, the coated film can be sufficiently cured by irradiation of an ionization radiation. As a result, the amount of inert gas supplied upon irradiation of an ionization radiation can be reduced, and downsizing and cost reduction of equipment can be achieved.

Method and apparatus for curing coated film

The coating construction has flexibility corresponding to the number of layers of multiple coating layers, by which a multilayer coating film can be produced with small film thickness without adherence of dust to a film surface, a drying fault such as unevenness induced by drying-wind on the film surface, or a coating fault such as a level variation and a streak. The multilayer coating film has a coating surface state of high quality with coating thickness deviation of 3% or less. A coating device is constructed in which at least a feed roller, a coater and a dryer are integrally incorporated in a casing, and the coating device is given a function as an independent device, whereby the production apparatus of the multilayer coating film can be constructed by only appropriately placing as many coating devices as the number corresponding to the number of layers of the multiple coating layers formed on a web between a delivery device and a winder.

Production apparatus of multilayer coating film

In a coating method and apparatus for applying coating liquid onto a web, the coating apparatus includes a rotating member rotatable and contacting with the web; and a support member supporting rotatably the rotating member and including a liquid reservoir formed between the rotating member and the support member, a fluid supply pipe, a cavity filled with the coating liquid and connecting to the fluid supply pipe, and a slit communicating the cavity with the liquid reservoir. The rotating member is supported by a fluid pressure of the liquid reservoir and the coating liquid supplied from the liquid reservoir forms a bead of the coating liquid by the rotating member between the web and the rotating member. The rotating member is floated uniformly in the widthwise direction by the fluid pressure so as to keep a predetermined clearance away from the support member to provide a stable coating. The bead is made uniform in the widthwise direction under any conditions.

Coating method and coating apparatus including uniformly floating

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Fujinomiya, Japan

Shuichi Endo