Abstract: An easy-open end which is excellent from the standpoint of sanitation and environmental friendliness yet satisfying both the close adhesion and the scratch resistance despite of using a bisphenol A-free primer. The easy-open end has a polyester film applied, via a primer, onto the inner surface of the end of an aluminum base sheet forming a surface-treating layer that contains a zirconium compound and/or a titanium compound and an organic compound, wherein the primer contains a polyester resin that contains not less than 30% by weight of a carboxyl group-introduced polyester resin, and a phenol resin at a weight ratio of 50:50 to 85:15.

Abstract: Provided is a film production apparatus and a method for producing film capable of exerting a good effect of preventing necking-in by minimizing the length of molten resin after extrusion through a die exit and before a contact with the surface of a chill roll. A film production apparatus configured to take up molten resin extruded downward from an exit bored in a die by a rotating chill roll located below the exit and to cool the molten resin for solidification by the chill roll to produce a film further includes a fluid providing unit that provides fluid to a space between the exit and the chill roll located below. The film production apparatus is configured to apply fluid pressure in a direction pushing back the molten resin existing in the space against displacement of the molten rein taken up in a rotational direction of the chill roll.

Abstract: Provided is a web floating and conveying device which has excellent web quality maintaining property and excellent conveying-fluid precision control property in conveying a web film. A conveyance guide (1) of the web floating and conveying device (10) is formed of a lamination-type assembled body having the split structure which is constituted of plate-shaped members (2) which are approximately radially arranged from an axis of the conveyance guide (1). A fluid passing passage which forms a fluid discharge hole by connecting a web floating surface (1a) and an introduction flow passage (7) through which a pressurized fluid is supplied to each other is formed on either one or both lamination surfaces of the plate-shaped members (2) which are laminated adjacent to each other.

Abstract: An easy-open end which is excellent from the standpoint of sanitation and environmental friendliness yet satisfying both the close adhesion and the scratch resistance despite of using a bisphenol A-free primer. The easy-open end has a polyester film applied, via a primer, onto the inner surface of the end of an aluminum base sheet forming a surface-treating layer that contains a zirconium compound and/or a titanium compound and an organic compound, wherein the primer contains a polyester resin that contains not less than 30% by weight of a carboxyl group-introduced polyester resin, and a phenol resin at a weight ratio of 50:50 to 85:15.

Abstract: A preventive film for a polarizer which comprises a non-oriented two-layer film comprising a polycarbonate film having a glass transition temperature of 100° C. or higher and, laminated on one surface thereof, a polyester him: a preventive film for a polarizer which comprises a non-oriented three-layer comprising a polycarbonate film having a glass transition temperature of 100° C. or higher and a polyester film laminated on one surface thereof and a polybutylene terephthalate film laminated on the other surface thereof and a polarizing pate which uses a polarizing film comprising a polarizer and two sheets of the above film adhered by heating with no use of an adhesive agent to both sides thereof. The preventive film exhibits an extremely small double refraction and is capable of being adhered directly to a polarizer through heating and the polarizing plate can be produced at a low cost.

Abstract: A preventive film for a polarizer which comprises a non-oriented three-layer film comprising a polycarbonate film having a glass transition temperature or 100° C. or higher and, laminated on both surfaces thereof, a polybutylene terephthalate film: a releasable preventive film for a polarizing film which comprises the three-layer film and, applied on the surface of the polybutylene terephthalate film side, a silicon based releasing agent; and a polarizing plate preventive film for a polarizing film and the releasable preventive film for a polarizing film as uppermost surface layers of a polarizing film containing a polarizer. The preventive film for a polarizing film and the releasable preventive film for a polarizing film exhibit an extremely small double refraction and can be produced at a low cost, and the polarizing plate using these films allows the detection of optical defects with ease.

Abstract: A preventive film for a polarizer which comprises a non-oriented two-layer film comprising a polycarbonate film having a glass transition temperature of 100° C. or higher and, laminated on one surface thereof, a polyester him: a preventive film for a polarizer which comprises a non-oriented three-layer comprising a polycarbonate film having a glass transition temperature of 100° C. or higher and a polyester film laminated on one surface thereof and a polybutylene terephthalate film laminated on the other surface thereof and a polarizing pate which uses a polarizing film comprising a polarizer and two sheets of the above film adhered by heating with no use of an adhesive agent to both sides thereof. The preventive film exhibits an extremely small double refraction and is capable of being adhered directly to a polarizer through heating and the polarizing plate can be produced at a low cost.