公开(公告)号：JPS58191156A

公开(公告)日：1983-11-08

申请号：JP7334282

申请日：1982-05-04

Applicant: Toray Industries

Inventor： NISHIOKA TAKESHI ,  SEKI SHIGEMI ,  MINAMI TOMOYUKI

IPC: G11B5/62 ,  B32B7/00 ,  B32B27/08 ,  B32B27/18 ,  B32B27/36 ,  C09D101/08 ,  C09D163/00 ,  C09D177/00 ,  G11B5/00 ,  G11B5/73 ,  G11B5/738

公开(公告)号：JPS5783451A

公开(公告)日：1982-05-25

申请号：JP15958880

申请日：1980-11-14

Applicant: Toray Industries

Inventor： MINAMI TOMOYUKI ,  SEKI SHIGEMI ,  NISHIOKA TAKESHI

IPC: B32B27/00 ,  B32B27/18 ,  B32B27/36

公开(公告)号：JP2000185382A

公开(公告)日：2000-07-04

申请号：JP36561798

申请日：1998-12-22

Applicant: TORAY INDUSTRIES

Inventor： SEKI SHIGEMI ,  MIMURA TAKASHI ,  OWATARI HISASHI

IPC: B32B27/32 ,  B29C55/12 ,  B29K67/00 ,  B29L9/00 ,  B32B27/36

Abstract: PROBLEM TO BE SOLVED: To provide a laminated polyester film excellent in folding crease properties, smoothness, whiteness and cushioning properties. SOLUTION: A laminated polyester film is constituted by laminating a layer (B-layer) based on a polyester resin (c) and a thermoplastic resin (d) incompatible with the resin (c) on the single surface or both surfaces of a layer (A-layer) based on a polyester resin (a) and a thermoplastic resin (b) incompatible with the resin (a). In this case, the thermoplastic resin (b) and the thermoplastic resin (d) have different compsns. and the center line average roughness Ra of the B-layer is 0.5 μm or less and the apparent density of the film is 0.5-below 1.3 g/cm3.

公开(公告)号：JPH11268214A

公开(公告)日：1999-10-05

申请号：JP7592798

申请日：1998-03-24

Applicant: TORAY INDUSTRIES

Inventor： SEKI SHIGEMI ,  MIMURA TAKASHI ,  OWATARI HISASHI

IPC: B32B27/36 ,  B32B7/02 ,  B32B9/00 ,  B32B27/18 ,  B32B27/32

Abstract: PROBLEM TO BE SOLVED: To keep a high durability, and improve the stratch-resistance and the whiteness by a method wherein a white polyester layer is made a base layer, and at least on one surface, a polyester layer containing an ultraviolet ray absorbing agent, and of which the particle content is less than that of the white polyester layer, is laminated. SOLUTION: At least on one surface of a white polyester layer as a base layer, a polyester layer which contains an ultraviolet absorber of which the particle content is less than that of the white polyester layer, is laminated. The white polyester layer is a layer comprising polyester, in which a white dye and a white fine grain or the like are contained, and preferably, is a layer wherein numerous fine air bubbles are generated in the layer, and light is scattered by the fine air bubbles to make the layer opaque. The polyester in this case, is a polymer which is obtained by a condensation polymerization from diol and dicarboxylic acid, and as the diol, ethylene glycol or the like is used, and as the ultraviolet absorber, a benzophenone-based substance or the like is used.

公开(公告)号：JPH11262988A

公开(公告)日：1999-09-28

申请号：JP6672198

申请日：1998-03-17

Applicant: TORAY INDUSTRIES

Inventor： SEKI SHIGEMI ,  MIMURA TAKASHI ,  OWATARI HISASHI

IPC: C08J9/00 ,  B29C55/18 ,  B32B5/18 ,  B32B27/20 ,  B32B27/36 ,  C08K3/00 ,  C08L67/02

Abstract: PROBLEM TO BE SOLVED: To provide a white polyester film having excellent cleavage preventiveness, whiteness and cushionability. SOLUTION: The white polyester film comprises a layer containing fine foams in a layer interior containing a polyester resin and a thermoplastic resin noncompatible with the resin as main components, and a layer containing a polyester resin and inorganic fine particles as main components in an outer layer part in such a manner that at least one layer contains a polyester resin copolymerized from one or more types selected from an isophthalic acid, an aliphatic dicarboxylic acid, an alicyclic dicarboxylic acid and its ester.

公开(公告)号：JPH11254620A

公开(公告)日：1999-09-21

申请号：JP5987498

申请日：1998-03-11

Applicant: TORAY INDUSTRIES

Inventor： SEKI SHIGEMI ,  MIMURA TAKASHI ,  OWATARI HISASHI

IPC: B32B27/36 ,  B32B27/18 ,  B41M5/382 ,  B41M5/40 ,  B41M5/50 ,  B41M5/52 ,  B41M5/38

Abstract: PROBLEM TO BE SOLVED: To realize a laminated polyester film having high hiding properties and excellent flexibility and whiting properties by a method wherein the apparent density of a film, which is prepared by laminating a white polyester layer onto at least one side of a light screen agent-containing polyester layer, is set to lie within a predetermined range. SOLUTION: This polyester film is a composite film prepared by laminating a white polyester layer onto at least one side of a light screen agent-containing polyester layer. As the light screen agent to be added in this polyester layer, a black-based or colored dye, a pigment made of a black-based or colored metal oxide, composite oxide, sulfide, nitride or the like, a carbon black or the like is employed. This white polyester layer is prepared by including a white dye, fine white particles or the like in a layer made of a polyester under the condition that an infinite number of fine bubbles are developed in the layer so as to scatter the light by the bubbles in order to produced a white and opaque layer. In addition, the apparent density of the polyester film is set to 0.5-1.3 g/cm .

公开(公告)号：JPH11170462A

公开(公告)日：1999-06-29

申请号：JP33728597

申请日：1997-12-08

Applicant: TORAY INDUSTRIES

Inventor： SEKI SHIGEMI ,  MIMURA TAKASHI ,  OWATARI HISASHI

IPC: G03G7/00 ,  B32B27/18 ,  B32B27/20 ,  B32B27/36

Abstract: PROBLEM TO BE SOLVED: To provide a laminated white polyester film of superior tone (b) value, whiteness, optical density and cushioning properties. SOLUTION: A composite film is formed of polyester layers B containing barium sulfate fine particles and laminated on both faces of a polyester layer A containing titanium oxide fine particles, and a fluorescent whitening agent is contained at least in one of polyester layers A and B, and the apparent density is 0.5 g/cm or more and less than 1.3 g/cm .

公开(公告)号：JPH08150681A

公开(公告)日：1996-06-11

申请号：JP11633395

申请日：1995-04-17

Applicant: TORAY INDUSTRIES ,  TORAY GOSEI FILM KK

Inventor： SEKI SHIGEMI ,  UEDA TOMOAKI

IPC: B32B9/00 ,  B32B27/18 ,  B32B27/30

Abstract: PURPOSE: To prevent a stain-proofing layer from deteriorating by providing a stain-proofing layer having an inorganic hydrophilic colloidal material as a main component on at least one face of a plastic film. CONSTITUTION: On one face of a plastic film consisting of a composition having ethylene-tetrafluoroethylene copolymeric resin as a main component, a stain- proofing layer having an inorganic hydrophilic colloidal material as a main component is provided. Also, on the other face, an ultraviolet absorbing layer having an ultraviolet absorbing acrylic resin as a main component and/or an adhesive layer is provided so as to obtain a composite film. The composite film has excellent stain-proofing property and excellent durability.

公开(公告)号：JP2503046B2

公开(公告)日：1996-06-05

申请号：JP10852488

申请日：1988-04-30

Applicant: TORAY INDUSTRIES

Inventor： SUMYA TAKASHI ,  YAMAGISHI HIDEKI ,  SEKI SHIGEMI

IPC: G11B5/72 ,  C08L67/00 ,  G11B5/73 ,  G11B5/80

公开(公告)号：JPH07214732A

公开(公告)日：1995-08-15

申请号：JP1040694

申请日：1994-02-01

Applicant: TORAY INDUSTRIES ,  TORAY GOSEI FILM KK

Inventor： SEKI SHIGEMI ,  UEDA TOMOAKI ,  KUBO MIDORI

IPC: B32B27/08 ,  B32B27/30

Abstract: PURPOSE:To obtain a composite film having excellent UV blocking properties, antistatic properties and close adhesiveness and also having easy adhesiveness by providing a coating layer based on a UV absorbable acrylic resin and a cationic polymer on the surface of a plastic film. CONSTITUTION:When a coating layer is formed on the surface of a plastic film, surface treatment or undercoat treatment is pref. applied because coating properties are improved and the close adhesiveness, water resistance or solvent resistance of the coating layer are improved. As surface treatment, corona discharge treatment, plasma treatment, alkali metal soln. treatment or high frequency sputtering etching treatment can be designated. As a UV absorbable acrylic resin, a copolymer resin of a reactive benzophenone compd. having UV absorbing capacity and an acrylic polymerizable unsaturated group is used.