Production method of film laminates and production apparatus used therein

Abstract

The manufacturing process relates to a manufacturing of a film laminate in which at least one side of the film 1 is provided with another film 2. The process comprises the steps of arranging the film 2 on at least one side of the film 1, feeding an adhesive liquid to the laminating part of the film 1 and film 2, at the same time feeding a liquid countering the adhesive liquid flowing toward at least one end of the film 1 from at least one end of the film 1 and laminating the film 1 and film 2 by pressing them. To provide a manufacturing process of film laminates by which the leakage of an adhesive liquid from the edge of the laminates in laminating one film to the other is prevented without solidifying the adhesive, a manufacturing apparatus used for the manufacturing process, a film laminate obtained by the manufacturing process and an optical film and an image display device provided with the film.

Description

technical field [0001] The present invention relates to a method for producing a film laminate in which other films are provided on at least one side of the film by means of an adhesive, a production device used in the method, a film laminate obtained by the production method, a film laminate obtained by the method A polarizing plate obtained by the production method, an optical film including the polarizing plate, and an image display device. Background technique [0002] In the past, in the method of laminating films with an adhesive liquid called an adhesive or an adhesive, there was usually a method of laminating after coating the adhesive liquid on the film, or supplying the adhesive liquid to a pair of films A method of bonding between a pair of rollers and the like through a press-bonding mechanism (for example, refer to Patent Document 1). In such lamination, when using a low-viscosity adhesive, there is a problem of contamination of the film and the device due to o...

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Problems solved by technology

[0006] However, since the water supply nozzle is arranged in the suction nozzle, its structure is complicated. When cleaning or repairing the water supply nozzle, it is necessary to put a cleaning tool into the suction nozzle, or to extract the water supply nozzle to the outside of the suction nozzle

Therefore, the operation is cumbersome

[0007] In addition, by installing a water supply nozzle in the suction nozzle, there is also a problem that the suction space in the suction nozzle is reduced, and the suction force is reduced.

Furthermore, the water flowing out from the water supply nozzle interferes with the adhesive liquid sucked inside the suction nozzle, so that the suction cannot be performed smoothly.

[0008] In addition, as mentioned above, the problem that occurs when air is sprayed from the end is not limited to the above-mentioned method of Patent Document 1 in which a protective film is bonded to both sides of the polarizer, but also occurs when both sides are bonded by the conventional method.

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