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公开(公告)号：JPH11339249A
公开(公告)日：1999-12-10
申请号：JP14396398
申请日：1998-05-26
Applicant: TORAY INDUSTRIES
Inventor： TAKADA HAGUMU , SHIRAKAWA ARIMICHI , MIMURA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To improve handleability in the production process of a magnetic recording card by forming a magnetic recording layer on one surface of a polyester film and forming a printing layer on a laminated layer film of the other surface, and controlling the half-life of surface chargedecay on the printing layer side. SOLUTION: The half-life of the surface charge decay on the printing layer side of a magnetic recording card is specified as being 30 sec or less, more preferably 0 to 15 sec, and most preferably 0 to 1 sec. For develop this function, an antistatic property is given to the laminated layer film formed on at least one surface of a polyester film. The laminated layer film is formed on the surface of the polyester film where the printing layer is to be formed, a laminated layer film may also may or may not be formed on the opposite surface where the magnetic recording layer is to be formed. The laminated layer to be formed on the opposite surface, where the magnetic recording layer is formed may be substantially the same laminated film as or a different laminated film from the laminated film formed on the printing layer side.
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公开(公告)号：JP2002067255A
公开(公告)日：2002-03-05
申请号：JP2000265104
申请日：2000-09-01
Applicant: TORAY INDUSTRIES
Inventor： SHIRAKAWA ARIMICHI , TAKADA HAGUMU , MIMURA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide a laminated polyester film which can satisfy adhesive properties with an aqueous functional layer in which a water-soluble and hydrophilic resin such as polyvinyl alcohol represented by a printing ink receiving layer in ink-jet printing is the main ingredient and resistance to moisture and heat. SOLUTION: The laminated polyester film prepared by forming a resin layer with a contact angle with a waterdrop of at least 60 deg. and with a contact angle with an ethylene glycol globule or a formaldehyde globule of at most 40 deg. is provided.
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公开(公告)号：JP2001105714A
公开(公告)日：2001-04-17
申请号：JP29190799
申请日：1999-10-14
Applicant: TORAY INDUSTRIES
Inventor： SHIRAKAWA ARIMICHI , TAKADA HAGUMU , MIMURA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide a base polyester film for ink jet which can satisfy the adhesion to an ink receiving layer and water resistance in ink jet printing. SOLUTION: This base polyester film for ink jet has a constitution wherein a coat layer prepared by mixing a polyester resin containing a sulfonic acid group and/or a sulfonate group with a polyvinyl alcohol derivative in a solid weight ratio of 50/50-95/5 is formed at least on one surface of a polyester film.
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公开(公告)号：JP2001105556A
公开(公告)日：2001-04-17
申请号：JP28369599
申请日：1999-10-05
Applicant: TORAY INDUSTRIES
Inventor： SHIRAKAWA ARIMICHI , TAKADA HAGUMU , MIMURA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide a laminated polyester film which meets the adhesive properties with a water functional layer composed mainly of a water-soluble and hydrophilic resin such as a polyvinyl alcohol as represented by an printing ink receiving layer in ink jet printing and the resistance to heat and moisture. SOLUTION: This laminated polyester film is characterized in that a resin layer having a water droplet contact angle of 60 deg. or more and a surface free energy Lewis acid parameter of 0.1 mN/m or more is formed on at least one of the faces of a polyester film.
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公开(公告)号：JP2000251247A
公开(公告)日：2000-09-14
申请号：JP5396199
申请日：1999-03-02
Applicant: TORAY INDUSTRIES
Inventor： TAKADA HAGUMU , SHIRAKAWA ARIMICHI , MIMURA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To attain excellent charging prevention property and printing characteristic by providing, to at least single surface of a polyester film, a laminated film having the charging prevention property and the surface pH value within the particular range. SOLUTION: A laminated film has the surface specific resistance under 1×1012 Ω/(square) at 23 deg.C and relative humidity of 65%. The laminated film is required to have the surface pH of 4 or more and 10 or less. As the method of satisfying the surface pH while assuring charging prevention property, it is preferable to introduce a method for adding the charging prevention agent to the laminated film. As the charging prevention agent, for example, ionic polymer, interface activation agent, conductive inorganic fine particle, conductive organic fine particle, inorganic electrolyte and organic complex salt are used. Among these, the ionic polymer as the copolymer having the ionic group in the main chain or side chain is preferable from the viewpoint of the charging prevention property, miscibility with other compound and coating property. As the other composite resin, aclyric resin or polyester resin are selected from the point of view of bonding property.
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Patent Agency Ranking
公开(公告)号：JP2001323090A
公开(公告)日：2001-11-20
申请号：JP2000144642
申请日：2000-05-17
Applicant: TORAY INDUSTRIES
Inventor： SHIRAKAWA ARIMICHI , TAKADA HAGUMU , MIMURA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide an antistatic polyester film excellent in antistaticity and able to satisfy the antistaticity of the film also after the lamination of an insulating layer. SOLUTION: An antistatic polyester film having a coated layer consisting of a compound obtained by copolymerizing an acrylic ester expressed by structural formula (I) (wherein, R is H or an alkyl; n=1-20; and X is an alkali metal, an alkaline earth metal or a quaternary amine) formed on at least one side of a polyester film.
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公开(公告)号：JP2001301108A
公开(公告)日：2001-10-30
申请号：JP2000119153
申请日：2000-04-20
Applicant: TORAY INDUSTRIES
Inventor： SHIRAKAWA ARIMICHI , TAKADA HAGUMU , MIMURA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide a laminated polyester film capable of satisfying adhesiveness with an ink receiving layer in ink jet printing and water resistance. SOLUTION: The laminated polyester film is constituted by forming a coating layer, which comprises a composition prepared by mixing an aqueous polyester resin and a hydroxyl group-containing vinyl type resin. The hydroxyl number is 30-80 mgKOH/g, in a solid weight ratio of 50/50-85/15 on at least the single surface of a polyester film. The ink receiving layer can be further provided on the coating layer.
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公开(公告)号：JP2000272070A
公开(公告)日：2000-10-03
申请号：JP8417399
申请日：1999-03-26
Applicant: TORAY INDUSTRIES
Inventor： TAKADA HAGUMU , SHIRAKAWA ARIMICHI , MIMURA TAKASHI
IPC: B32B27/36
Abstract: PROBLEM TO BE SOLVED: To render ink adhesion and an oligomer deposition restraining property after an elapse of time excellent by providing a laminated film having as a constitutional component polyester resin of a specific glass transition temperature on at least one surface of a polyester film containing lithium dodecylbenzenesulfonate by a specific rate. SOLUTION: A lamination film having as a constitutional component polyester resin of a glass transition temperature of -120 deg.C or higher or 60 deg.C or lower is provided on at least one surface of a polyester film containing lithium dedecylbenzenesulfonate by 0.02-2 wt.%. Such polyester is preferable to be one having ethyleneterephthalate as a principal component in particular, and further preferable to be polyethylene-2,6-naphthalate having superior heat resistance or rigidity in use where heat is affected to the base material or in use where resin is shrunk during curing period such as UV ray curable resin. A thickness of the polyester film is suitable to be 1-500 μm in terms of mechanical strength, a handling property, etc.
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公开(公告)号：JP2000263914A
公开(公告)日：2000-09-26
申请号：JP6529899
申请日：1999-03-11
Applicant: TORAY INDUSTRIES
Inventor： SHIRAKAWA ARIMICHI , TAKADA HAGUMU , MIMURA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To meet adhesion durability, an antistatic property, and water resistance with a polyester resin simultaneously by forming a resin layer of a polystylenesulfonic acid metal salt and a polyester resin each having a specific weight ratio on a polyester film. SOLUTION: A polystylenesulfonic acid metal salt is an alkaline metal salt (Li, Na, K, or the like) of polystylenesulfonic acid and an alkaline earth metal salt (Mg, Ca, Ba, or the like), in particular, is preferable to be an alkaline metal salt. Also, a polyester resin is available in one having an ester combination in a main chain and side chain, and obtained by making a condensation polymerization of an acid component and a glycol component. A weight ratio of polyester sulfonic acid metal A and polyester B, i.e., a solid weight ratio of A/B is made 0.05-1, preferably, 0.1-0.65, more preferably, 0.2-0.45. If the ratio is too small, an antistatic property or water resistance become short, on the contrary, if it is large, adhesion durability or water resistance become short.
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公开(公告)号：JP2002079635A
公开(公告)日：2002-03-19
申请号：JP2000268221
申请日：2000-09-05
Applicant: TORAY INDUSTRIES
Inventor： TAKADA HAGUMU , SHIRAKAWA ARIMICHI , MIMURA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide a laminated film with improved adhesive properties on various coated articles and at the same time, with improved adhesive properties after wet heat treatment. SOLUTION: In a process for manufacturing a polyester film, a laminated film forming coating in which at least one resin selected from acrylic resins, polyester resins and urethane resins is a main constituent ingredient is applied on at least one face of the polyester film before crystallization orientation is completed and then, it is drawn in at least one direction and is heat-treated and thereafter, electrical discharge machining is applied on the laminated film under nitrogen atmosphere to manufacture the laminated polyester film with a waterdrop contact angle on the surface of the laminated film of at least 50 degree.
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