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1. 发明专利

JP2001001653A THERMAL-TRANSFER SHEET 失效
公开(公告)号：JP2001001653A
公开(公告)日：2001-01-09
申请号：JP17501499
申请日：1999-06-22
申请人： DAINIPPON PRINTING CO LTD
发明人： NAKAJO SHIGEKI , HARADA NOBUYUKI , HIROI JUNICHI
IPC分类号： B41J31/00 , B41M5/382 , B41M5/40
摘要： PROBLEM TO BE SOLVED: To prevent printed image wrinkles due to a thermal damage of a thermal head to a primer layer between a base material sheet and a thermal- resistant lubricating layer from occurring while a transformation into a membrane of a thermal-transfer sheet is being advanced. SOLUTION: This thermal-transfer sheet is constituted by forming a heat- transferring color material layer on one surface of a base material sheet, and forming a thermal-resistant lubricating layer on the other surface through a primer layer. In this case, the primer layer contains sulfonated polyaniline as an anti-static agent, and a resin of which the elasticity G' at 120 deg.C is 103 Pa or higher, and of which the viscosity G" is 104 Pa or higher, as the primer component. By this constitution, the elasticity and the viscosity of the primer resin component at a heating temperature of 120 deg.C is set in the above mentioned range, and the viscoelasticity under a high temperature is kept high. Thus, the generation of printed image wrinkles due to the generation of a thermal damage on the primer layer at the time of a printing, can be prevented from occurring.

2. 发明专利

JPH1035122A THERMAL TRANSFER SHEET 失效
公开(公告)号：JPH1035122A
公开(公告)日：1998-02-10
申请号：JP21218696
申请日：1996-07-24
申请人： DAINIPPON PRINTING CO LTD
发明人： HIROI JUNICHI , HARADA NOBUYUKI , NAKAJO SHIGEKI
IPC分类号： B41M5/382 , B05D5/08 , B41M5/40
摘要： PROBLEM TO BE SOLVED: To provide a thermal transfer sheet which is well compatible with a binder resin forming a heat-resistant lubricative layer and is highly responsive to heat in terms of lubricity and mold parting properties when low migratory lubricant is used, and hardly generates heat tailings even after heating by a thermal head and cooling. SOLUTION: This thermal transfer sheet consists of a thermal transfer coloring material layer formed on one of the faces of base film and a heat-resistant lubricative layer formed on the other face. In addition, the heat-resistant lubricative layer contains a chemical compound expressed by formula. In the formula, Rk is OC1 H1+2 , or (OCH2 CH2 )n OCn Hn+2 , or (OCH2 CH2 )n OCOCn Hn+2 , or OH. However, k=1-2, 1=8-20, m=1-10, n=1-20, R: saturated, unsaturated aliphatic or aromatic chain, X>=1.

3. 发明专利

JPH09295465A THERMAL TRANSFER SHEET 失效
公开(公告)号：JPH09295465A
公开(公告)日：1997-11-18
申请号：JP13053196
申请日：1996-04-30
申请人： DAINIPPON PRINTING CO LTD
发明人： NAKAJO SHIGEKI , HARADA NOBUYUKI , HIROI JUNICHI
IPC分类号： B41M5/382 , B41M5/40 , B41M5/42
摘要： PROBLEM TO BE SOLVED: To obtain a thermal transfer sheet which is excellent in adhesiveness and has a charge preventive effect by a method wherein the charge priventive layer composed of an organic polymer having an ether group to which a metallic salt is coordinated, the metallic salt, and binder resin is provided between at least a base material sheet and a heat resistant lubricant layer 4 or the base material sheet and a thermal transferrable colorant layer 3 in the thermal transfer sheet. SOLUTION: In a thermal transfer sheet 1 wherein a thermal transfer colorant layer 3 is provided to one side face of a base material sheet, and a heat resistant lubricant layer 4 is formed on the other face, a charge preventive layer 5 composed of an organic polymer having ether bond, metallic salt, and binder resin is provided between at least the base material sheet and the heat resistant lubricant layer 4 or the base material sheet and the thermal transferrable colorant layer 3. For a method of forming the charge preventive layer 5, polyester resin is dissolved or dispersed in organic solvent or water selected so as to meet coating adaptability, and ink is coated and dried by, for example, a means of a gravure printing method or the like to form the charge preventive layer 5. Thereby, the thermal transfer sheet 1 which is excellent in adhesiveness and has a charge preventive effect is obtained.

4. 发明专利

JPH0781252A HEAT TRANSFER SHEET 失效
公开(公告)号：JPH0781252A
公开(公告)日：1995-03-28
申请号：JP24861193
申请日：1993-09-10
申请人： DAINIPPON PRINTING CO LTD
发明人： HARADA NOBUYUKI
IPC分类号： B41J31/00 , B41M5/385 , B41M5/388 , B41M5/39 , B41M5/38
摘要： PURPOSE:To contrive to enhance the light-resistance after printing and, at the same time, realize high sensitivity and high densification by a method wherein a magent dye layer formed on a base material sheet is made of a layer containing a magenta hue dye, which is obtained by mixing at least two different specified dyes. CONSTITUTION:In a heat transfer sheet, which is prepared by providing a magenta dye layer on a base material sheet, the magenta dye layer is made of a layer containing a magenta hue dye, which is obtained by mixing the dye represented by the formula I and the dye represented by the formula II or the like, where R1, R2, R4 and R5 represent respectively substituted-or non- substituted alkyl group, aryl group, allyl group and aralkyl group, R3 represents atom, halogen atom, alkyl group or the like, R6 represents substituted-or non- substituted-aryl group and heterocyclic group and R7 represents substituted-or non-substituted-alkyl group or-NR13R14, in which R13 and R14 are hydrogen atom, substituted-or non-substituted-alkyl carbonyl group.

5. 发明专利

JP2001071650A THERMAL TRANSFER RECORDING MATERIAL 失效
公开(公告)号：JP2001071650A
公开(公告)日：2001-03-21
申请号：JP25250699
申请日：1999-09-07
申请人： DAINIPPON PRINTING CO LTD
发明人： TAKADA TAKESHI , TAKAO SHINO , TAMURA YOSHIHIKO , HANMURA MASAHIRO , HARADA NOBUYUKI
IPC分类号： B32B27/36 , B41M5/382 , B41M5/385 , B41M5/388 , B41M5/39 , B41M5/40 , B41M5/50 , B41M5/52 , B41M5/38
摘要： PROBLEM TO BE SOLVED: To ensure a sufficient printing density coping with a high speed printing, and at the same time, prevent staining due to a transfer and the retransfer of a dye from occurring by adding a cellulose ester and quinophthalone-based coloring matter or the like in the yellow layer of a dye layer, and at the same time, adding an aromatic polycarbonate resin in the receiving layer. SOLUTION: For this thermal transfer recording material, the dye layer of a thermal transfer sheet and the receiving layer of a thermal transfer image- receiving sheet are superposed, and a dye in the dye layer is transferred to the receiving layer by a heating means. In this case, an aromatic polycarbonate resin is contained in the receiving layer. In the meantime, a cellulose ester, and at least one kind selected from a quinophthalone-based coloring matter represented by formula (1), and a dicyanostyryl-based coloring matter represented by formula (2) is contained. In this case, in formula (1), R1 to R5 and R6, R7 each independently represent various kinds of groups, which can be selected. Also, in formula (2), R1 to R3 each represent various kinds of groups, and A represents -CH2- and others.

6. 发明专利

JP2000313173A THERMAL TRANSFER RECORDING MATERIAL 失效
公开(公告)号：JP2000313173A
公开(公告)日：2000-11-14
申请号：JP12336299
申请日：1999-04-30
申请人： DAINIPPON PRINTING CO LTD
发明人： HANMURA MASAHIRO , TAKAO SHINO , TAMURA YOSHIHIKO , TAKADA TAKESHI , HARADA NOBUYUKI
IPC分类号： B41M5/382 , B41M5/385 , B41M5/388 , B41M5/39 , B41M5/395 , B41M5/50 , B41M5/52 , B41M5/38
摘要： PROBLEM TO BE SOLVED: To print with high sensitivity by incorporating a styrene homopolymer in an acceptive layer provided on a base material, and forming a yellow dye layer of a dye layer so as to contain a cellulose ester, a specific quinophthalon dye and a dicyanostyryl pigment. SOLUTION: In the thermal transfer recording material comprising a thermal transfer sheet having a dye layer and a thermal transfer image receiving sheet having an acceptive layer, a yellow dye layer of a dye layer is formed to contain a cellulose ester, a quinophthalon dye represented by the formula I and/or a dicyanostyryl dye represented by the formula II. The acceptive layer is formed to contain a styrene homopolymer. In the formula I, R1 to R5 are each an alkyl group, a cycloalkyl group or the like, a R6, R7 are each an alkyl group, an alkoxyalkyl group or the like, and in the formula II, R1 is an allyl group, or an alkyl group, R1 is an alkyl group, or an aryl group, R3 is an alkyl group, and A is -CH2-, -CH2CH2- or the like.

7. 发明专利

JP2000272251A HEAT TRANSFER SHEET 失效
公开(公告)号：JP2000272251A
公开(公告)日：2000-10-03
申请号：JP8514799
申请日：1999-03-29
申请人： DAINIPPON PRINTING CO LTD
发明人： HARADA NOBUYUKI , SUZUKI TARO
IPC分类号： B41M5/382 , B41M5/40 , B41M5/41 , B41M5/38
摘要： PROBLEM TO BE SOLVED: To suppress a thermal damage to a thin film substrate and prevent unevenness in print due to heat wrinkles of a substrate by suppressing a thermal history of substrate to a minimum and changing a printing process of heat resistant lubricating layer-aging-dye layer to a process of heat resistant lubricating layer.dye layer inline printing. SOLUTION: In the heat transfer sheet having a biaxially stretched polyester film 1-5 μm in thickness (easily-adhesive layer treatment, when required) as a substrate, wherein a heat resistant lubricating layer is provided on one side thereof, while a heat sublimation dye layer is provided on the other side, a binder resin of the heat resistant lubricating layer contains, as a principal component, a styrene/acrylonitrile copolymer, and a lubricant contains a multivalent metallic salt of an alkyl phosphate and at least two kinds of or the same kind of heat resistant particles having different diameters.

8. 发明专利

JP2000272250A BLACK HEAT-TRANSFER SHEET 失效
公开(公告)号：JP2000272250A
公开(公告)日：2000-10-03
申请号：JP8395499
申请日：1999-03-26
申请人： DAINIPPON PRINTING CO LTD
发明人： HARADA NOBUYUKI , YOSHIDA KAZUYA
IPC分类号： B41M5/382 , B41M5/385 , B41M5/388 , B41M5/39 , B41M5/40 , B41M5/41 , B41M5/38
摘要： PROBLEM TO BE SOLVED: To increase the color developing sensitivity for black color, and at the same time, increase the color rendering property and the fastness to heat and light by using a biaxially drawn polyester film having a specified thickness as the base material, and forming a heat-resistant lubricant layer on one surface of the base material, and a heat-transfer color material layer on the other surface, and containing a specified dye in the heat-transfer color material layer. SOLUTION: This black heat-transfer sheet is formed in such a manner that a biaxially drawn polyester film having a thickness of 1-3 μm is made the base material, and on one surface of the base material, a heat-resistant sliding layer is provided, and on the other surface, a heat-transfer color material layer is provided. Then, the heat-transfer color material layer contains at least a dye represented by formulas I and II. In the formula I, R1, R2 each represent an alkyl group and a cycloalkyl group or the like, R3 represents a hydrogen atom, a halogen atom, a cyano group or the like, R4 represents an alkyl group, a cycloalkyl group or the like, R5 represents an aminocarbonyl group, an alkoxycarbonyl group or the like, and n is an integer of 1 or 2. Also, in the formula II, R6, R7 each represent an alkyl group, a cycloalkyl group, an aralkyl group or an aryl group.

9. 发明专利

JP2000094810A ACCEPTANCE/REJECTION DETERMINATION METHOD OF PRINTING RIBBON AND PRINTING RIBBON MANUFACTURED BY THIS METHOD 失效
公开(公告)号：JP2000094810A
公开(公告)日：2000-04-04
申请号：JP26634798
申请日：1998-09-21
申请人： DAINIPPON PRINTING CO LTD
发明人： TOMITA KENJI , MUTO ATSUSHI , HARADA NOBUYUKI , SOSHI HIROYUKI
IPC分类号： B41J31/14 , B41J35/00 , B41J35/38
摘要： PROBLEM TO BE SOLVED: To enable acceptance or rejection of articles to be determined accurately by detecting the unevenness of density of a printing ribbon. SOLUTION: This is provided with a measuring means 10 for measuring transmission density across the breadth direction of a ribbon transported, a calculation means 11 for calculating its average density by taking in the transmission density data measured and calculating the unevenness of the transmission density of each measuring point, and an indication means 12 for indicating the calculation results. As such, a warning indication is effected to the indication means as the maximum value of the unevenness of the transmission density exceeds a predetermined value.

10. 发明专利

JPH1120323A THERMAL TRANSFER SHEET 失效
公开(公告)号：JPH1120323A
公开(公告)日：1999-01-26
申请号：JP19207397
申请日：1997-07-03
申请人： DAINIPPON PRINTING CO LTD
发明人： NAKAJO SHIGEKI , HIROI JUNICHI , HARADA NOBUYUKI
IPC分类号： B41M5/382 , B41M5/40 , B41M5/41 , B41M5/38
摘要： PROBLEM TO BE SOLVED: To provide a thermal transfer sheet having heat resistance, by preventing wrinkle by printing, with excellent adhesive properties of a heat resistant layer to a base material film. SOLUTION: A heat resistant layer is provided between a base material film and a heat resistant smooth layer of the thermal transfer sheet, and the heat resistant layer is formed of acrylic resin and dicarboxylic acid. Affinity of the sheet to the base material film (mainly polyester film) is satisfactory since it has not only carboxyl group of the acrylic resin but also carboxyl group of the dicarboxylic acid in the state that dicarboxylic acid is copolymerized or mixed with the acrylic resin. And, an adhesive force to the base material film becomes high. And, the sheet having heat resistance for preventing wrinkle due to printing is obtained by using the acrylic resin.

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