公开(公告)号：JPH0376746A

公开(公告)日：1991-04-02

申请号：JP21569489

申请日：1989-08-21

Applicant: TORAY INDUSTRIES

Inventor： KIDA KENJI ,  SASAKI TOSHIHIRO ,  UEDA TOMOAKI

IPC: C08K5/42 ,  C08G63/688 ,  C08J5/18 ,  C08L67/00 ,  C08L67/02

Abstract: PURPOSE:To prepare a polyester compsn. excellent in the adhesive properties, transparency, antistatic properties, and mechanical properties by compounding a specified amt. of an org. sulfonate salt into a polyester obtd. from a specific acid component and a diol component comprising an alkylene glycol. CONSTITUTION:100 pts.wt. polyester obtd. from an acid component comprising terephthalic acid, an arom. dicarboxylic acid having a metal sulfonate group (e.g. 5-sodiumsulfoisophthalic acid) and a 4-20C aliph. dicarboxylic acid (e.g. adipic acid) and a diol component comprising an alkylene glycol (e.g. ethylene glycol) is compounded with 0.01-6 pts.wt. org. sulfonate salt (e.g. sodium dodecylbenzenesulfonate).

公开(公告)号：JPS62149744A

公开(公告)日：1987-07-03

申请号：JP29046085

申请日：1985-12-25

Applicant: TORAY INDUSTRIES

Inventor： KIDA KENJI ,  UEDA TOMOAKI ,  OKASAKA HIDESADA

IPC: C08L67/02 ,  B29C55/02 ,  B29K67/00 ,  B29L7/00 ,  C08G63/18 ,  C08G63/181 ,  C08G63/685 ,  C08G63/688 ,  C08J5/18 ,  C08K5/05 ,  C08K5/09 ,  C08K5/10 ,  C08K5/13 ,  C08K5/17 ,  C08L67/00

Abstract: PURPOSE:To improve the moldability of a polyester and the surface evenness, slipperiness, etc., of moldings, by adding a bifunctional org. compd. having a long-chain alkyl group and a hydroxyl, carboxyl or amino group to the polyester. CONSTITUTION:A bifunctional org. compd. having two functional groups selected from the group consisting of -OH, -COOR and -NHR (wherein R is H or an alkyl group- and a 6 C or higher long-chain alkyl group (e.g. 1,2-eicosanedial, 4-octadecylresorcinol) is prepd. The org. compd. is added to a polyester (e.g., polyethylene terephthalate) to obtain a desired polyester compsn. The addition is made before the completion of the polycondensation reaction in the production of the polyester to thereby react it sufficiently with a polyester component. The resultant polyester compsn. is suitable for use in the production of magnetic tapes.

公开(公告)号：JP2002178660A

公开(公告)日：2002-06-26

申请号：JP2000382196

申请日：2000-12-15

Applicant: TORAY INDUSTRIES

Inventor： KAWAZU YUKIO ,  KIDA KENJI ,  SUZUKI MOTOYUKI

IPC: B41N1/24 ,  C08J7/04

Abstract: PROBLEM TO BE SOLVED: To provide a film for heat-sensitive stencil process printing with such advantages that the film perforation sensitivity is high and void defect-free imaging properties are outstanding, and a base paper. SOLUTION: This film for heat-sensitive stencil process printing is characterized in that a coating layer consisting of a polymer composed mainly of a polylactic acid is formed on at least one of the sides of a thermoplastic resin film. The base paper for heat-sensitive stencil process printing is characterized in that a porous support with ink permeability is joined to the base paper through the coating layer of the film.

公开(公告)号：JP2002052856A

公开(公告)日：2002-02-19

申请号：JP2000239648

申请日：2000-08-08

Applicant: TORAY INDUSTRIES

Inventor： KAWAZU YUKIO ,  KIDA KENJI

IPC: B41N1/24

Abstract: PROBLEM TO BE SOLVED: To provide a film for heat-sensitive stencil printing which shows outstanding perforating properties at a machine with a high resolving degree and also a high shelf stability as well as a stencil paper. SOLUTION: The film for heat-sensitive stencil printing comprises a layer (a layer A) consisting of a polymer composed mainly of a polylactic acid and a layer (a layer B) consisting of a polyester constituted of a dicarboxylic acid component and a glycol component, laminated in a three-layer fashion, i.e., B/A/B. The stencil paper for heat-sensitive stencil printing is structured of the film for heat-sensitive stencil printing and an ink-permeable porous support bonded together.

公开(公告)号：JP2001080228A

公开(公告)日：2001-03-27

申请号：JP26164299

申请日：1999-09-16

Applicant: TORAY INDUSTRIES

Inventor： KAWAZU YUKIO ,  KIDA KENJI

IPC: B41N1/24

Abstract: PROBLEM TO BE SOLVED: To print a beautiful image from a first sheet even by printing by a high resolution type printer without changing a density of an image even by printing in a large quantity, by setting a pressure loss of the air in a porous support to a specific value. SOLUTION: In a porous support, a pressure loss of an inner air is set to less than 5 mmAg, preferably 4 mmAg or less or more preferalby 3 mmAg or less. If the loss of the air is 5 mmAg or more, a permeation resistance of an ink is increased. When printed by a high resolution type printer, a density of an image at initial several sheets becomes insufficient, and stable printed product cannot be obtained. A method for setting the resistance of the air to less than 5 mmAg includes the steps of mixing fibers of two or more types having different fiber diameters, regulating a crest amount or regulating a pressing pressure after papermaking.

公开(公告)号：JP2001030648A

公开(公告)日：2001-02-06

申请号：JP2000136755

申请日：2000-05-10

Applicant: TORAY INDUSTRIES

Inventor： KIDA KENJI ,  ASANO TETSUYA ,  SUZUKI MOTOYUKI

IPC: B41N1/24

Abstract: PROBLEM TO BE SOLVED: To provide an original sheet for heat sensitive printing a thermal stencil having excellent image clarity, conveyability and printability with a reduction in voids. SOLUTION: In the original sheet for heat sensitive stencil printing obtained by connecting a thermoplastic film to a porous support made of a thermoplastic fiber without intermediary of an adhesive, a tensile elastic modulus Ex (N/mm) parallel to a longitudinal direction of the sheet and a tensile elastic modulus Ey (N/mm) parallel to a width direction satisfy a formula: Ex+Ey>=450.

公开(公告)号：JP2000108542A

公开(公告)日：2000-04-18

申请号：JP28280698

申请日：1998-10-05

Applicant: TORAY INDUSTRIES

Inventor： YAMAUCHI HIDEYUKI ,  NIINUMADATE HIROSHI ,  KIDA KENJI

IPC: B29C55/02 ,  B41N1/24 ,  C08J5/18

Abstract: PROBLEM TO BE SOLVED: To prevent the surface roughing of a film from occurring during film casting and, enhance the extensibility by melt-extruding an L-lactic acid polymer in a sheetlike form and casting the extruded sheet by cooling on a casting drum through a water film and further, biaxially stretching an unoriented film obtained through the cooled casting. SOLUTION: An L-lactic acid polymer contains an L-polylactic acid, a lactic acid/hydroxycarboxylic acid copolymer and a mixture thereof, and is dried and supplied to an extruder to be melt-extruded in a sheetlike form. Next, when the molten sheet is set by cooling on a casting drum, it is essential to form a water film on the casting drum. A decomposition product generated from the polymer sticks to the casting drum and in turn, is adhesively transferred to a cast film to prevent the surface of the film from becoming roughed. In addition, the unstretched film is biaxially stretched. Thus it is possible to enhance the heat sensitivity of the film and thereby, prolong the service life of a thermal head and further, shorten time required for plate making.

公开(公告)号：JP2000094850A

公开(公告)日：2000-04-04

申请号：JP26631198

申请日：1998-09-21

Applicant: TORAY INDUSTRIES

Inventor： ASANO TETSUYA ,  KIDA KENJI ,  SUZUKI MOTOYUKI

IPC: B41N1/24

Abstract: PROBLEM TO BE SOLVED: To reduce the generation of voids, and improve the carrying property, the image visibility, and the printing property by bonding a polyester film and a porous supporting body comprising a polyester fiber without using an adhesive, and setting it at a specified heating property. SOLUTION: This original paper for heat-sensitive stencil printing is formed by bonding a polyester film and a porous supporting body comprising a polyester fiber, without using an adhesive. Then, a property wherein the temperature by which the extension rate or the shrinkage rate reaches 2.0% when a temperature is raised by heating from a normal temperature, is 80 deg.C or higher, is imparted. By this constitution, fear wherein the strength of the original paper reduces due to a water content in an ink or an organic solvent or the like, is eliminated, and also, voids due to a transmission inhibition of the ink are prevented from being generated and the image visibility is improved. In addition, the generations of wrinkles at the time of a plate-making is suppressed, the carrying property after the plate-making becomes favorable, and the generation of printing defects and voids due to wrinkles are reduced, and the carrying property, the image visibility, and the printing property are improved.

公开(公告)号：JPH11291656A

公开(公告)日：1999-10-26

申请号：JP11148498

申请日：1998-04-07

Applicant: TORAY INDUSTRIES

Inventor： KIDA KENJI ,  NIINUMADATE HIROSHI ,  YAMAUCHI HIDEYUKI

IPC: B41N1/24 ,  B29C55/12 ,  B29K67/00 ,  B29L7/00

Abstract: PROBLEM TO BE SOLVED: To enhance a sensitivity in the case of perforating and to provide an excellent uniformity of perforating by satisfying specific relationship between a density of a thermoplastic resin film and a noncrystal density of a thermoplastic resin composition. SOLUTION: The film is formed of a thermoplastic resin composition. As the resin, a polyester or the like is preferable. It is necessary that a density (d:g/cm ) of the film and a noncrystal density (do:g/cm ) of the composition for constituting the film satisfyn a formula I. If (d-do) is less than -0.6 g/cm , a base sheet is easily curled, and hence not preferable. If it exceeds 0.02 g/cm , an effect of improving a sensitivity is not sufficiently obtained. Preferably, it satisfies a formula II. If it falls within this range, a curl further scarcely occurs. More preferably, it satisfies a formula III. If it falls within this range, perforability is further improved.

公开(公告)号：JPH11157239A

公开(公告)日：1999-06-15

申请号：JP32582897

申请日：1997-11-27

Applicant: TORAY INDUSTRIES

Inventor： KAWAZU YUKIO ,  KIDA KENJI ,  SUZUKI MOTOYUKI

IPC: B41N1/24 ,  B32B5/02 ,  B32B5/18 ,  B32B27/36

Abstract: PROBLEM TO BE SOLVED: To obtain a high image quality by preventing a plate attaching wrinkle in a printed matter attained in a stencil printing using a heat sensitive stencil printing base sheet. SOLUTION: The heat sensitive stencil printing base sheet obtained by laminating a thermoplastic resin film and a porous support made of thermoplastic resin fibers without adhesive comprises a fiber layer having a circular section and a fiber layer having an elliptical section in the support. In this support, the layer having the circular section is disposed at the film side, and the layer having the elliptical section is disposed on an outer surface.