WO2004113092A1 - 昇華性熱転写記録媒体及びこれを用いた熱転写記録方法 - Google Patents
昇華性熱転写記録媒体及びこれを用いた熱転写記録方法 Download PDFInfo
- Publication number
- WO2004113092A1 WO2004113092A1 PCT/JP2004/006658 JP2004006658W WO2004113092A1 WO 2004113092 A1 WO2004113092 A1 WO 2004113092A1 JP 2004006658 W JP2004006658 W JP 2004006658W WO 2004113092 A1 WO2004113092 A1 WO 2004113092A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- thermal transfer
- recording medium
- transfer recording
- resin
- sublimation
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
- B41M5/035—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet by sublimation or volatilisation of pre-printed design, e.g. sublistatic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/382—Contact thermal transfer or sublimation processes
- B41M5/392—Additives, other than colour forming substances, dyes or pigments, e.g. sensitisers, transfer promoting agents
- B41M5/395—Macromolecular additives, e.g. binders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/34—Multicolour thermography
- B41M5/345—Multicolour thermography by thermal transfer of dyes or pigments
Definitions
- the present invention relates to a sublimation thermal transfer recording medium used as an ink ribbon in a sublimation type thermal transfer printing medium or the like, and particularly relates to a thermal transfer dye layer. It relates to improvement of resin composition. Furthermore, the present invention relates to a thermal transfer recording method using such a sublimable thermal transfer recording medium.
- BACKGROUND ART In a thermal transfer recording system using a sublimable dye, a large number of color dots are transferred to a transfer target by heating for an extremely short time, and the full-color image of the original is reproduced by the multicolor dots. are doing.
- a thermal transfer recording medium in which a thermal transfer dye layer containing a heat transfer dye (sublimable dye) is formed on one surface of a base film such as a polyester film is used as an ink lipon.
- the sublimation dye in the thermal transfer dye layer is transferred to the photographic paper by heating according to the image information from the back of the recording medium with a thermal head or the like, thereby forming the desired dye image.
- the thermal transfer operation is performed by superimposing the three thermal transfer dye layers of yellow, magenta and cyan sequentially formed on one side of the thermal transfer recording medium on photographic paper. In addition to these three colors, a black thermal transfer dye layer is transferred to form a higher density black image.
- thermal transfer recording medium it is important that the printed matter develops a high-density color and that there is no defect such as fusing to the transferred object (such as photographic paper).
- a vinyl resin such as polyvinyl chloride or a cellulose resin has been used.
- a technology to add a small amount of a silicone graft polymer obtained by modifying silicone such as acrylic, polyester, styrene, urethane, etc., silicone oil, phosphoric acid ester, fluorine-based surfactant, etc. to the thermal transfer dye layer to prevent fusing.
- Patent Document 1 Japanese Patent Application Laid-Open No.
- the thermal transfer dye layer of the thermal transfer recording medium has a molecular weight of 100,000 or more and a high glass transition point Tg (70 ° C to 90 ° C) so that background contamination does not occur due to residual heat of the thermal head.
- Resin is used as binder resin.
- a binder resin having a high molecular weight has a low thermal behavior due to a high glass transition point Tg, and has a low maximum printing density.
- a shortage of printing density is a problem in responding to a demand for high-speed printing.
- a thermal transfer recording medium having a thermal transfer dye layer using a binder resin having a high molecular weight for example, a plastic card made of soft vinyl chloride (containing about 50% of a plasticizer for vinyl chloride).
- the silicone-modified polymer used in the invention described in Patent Document 1 is a graft-type polymer, and has a structure in which a silicone chain is introduced into a main chain (for example, an acrylic chain) in a branched manner. Therefore, although the silicone chain, which is a side chain, is pre-coated, a mold releasing effect is exhibited, but since the main chain exists in the binder, there is almost no barrier effect against the dye. As a result, soil contamination will still occur.
- the present invention has been proposed in view of such a conventional situation. It is possible to eliminate background contamination and the like, and to perform high-precision gradation printing in which the correlation between the applied heat amount and the color density is high. It is an object of the present invention to provide a sublimable thermal transfer recording medium and a thermal transfer recording method that can be realized. Another object of the present invention is to provide a sublimable thermal transfer recording medium which does not cause problems such as separation of paint and repelling during coating when forming a thermal transfer dye layer.
- the present inventors have conducted various studies over a long period of time.
- the use of a resin material with a low molecular weight as the main binder resin and the use of a block copolymer type silicone resin with a silicone chain introduced into the main chain are used to eliminate background contamination and achieve maximum printing.
- the present invention has been completed on the basis of such knowledge, and in a sublimation thermal transfer recording medium in which a plurality of thermal transfer dye layers having different hues are provided on one surface of a base sheet in a face-to-face sequence.
- the thermal transfer dye layer is characterized by containing a resin material having a weight average molecular weight Mw of 1000 or less and a block copolymer type silicone resin.
- the thermal behavior is good, and the applied heat amount and color development High density correlation and high print density.
- the block copolymer type silicone resin has a high barrier effect on the dye because the main chain also moves to the vicinity of the surface when the silicone chain pre-does. Therefore, the ratio of the dye on the surface of the thermal transfer dye layer is reduced, and the color is not easily formed by the residual heat of the thermal head, and the background stain is eliminated.
- the block copolymer type silicone resin includes a silicone terminal group that inhibits compatibility and solubility with a binder resin (a resin material having a weight average molecular weight Mw of 1000 or less). Since no dye is present, a heat transfer dye layer can be formed uniformly, which not only has a high effect of suppressing dye diffusion, but also eliminates problems such as paint separation and repelling during coating.
- a binder resin a resin material having a weight average molecular weight Mw of 1000 or less. Since no dye is present, a heat transfer dye layer can be formed uniformly, which not only has a high effect of suppressing dye diffusion, but also eliminates problems such as paint separation and repelling during coating.
- the thermal transfer recording method of the present invention is a thermal transfer recording method in which a sublimable thermal transfer recording medium is brought into contact with an object to be transferred, and heat is applied from the back side of the sublimable thermal transfer recording medium to print on the object.
- a thermal transfer dye layer containing a resin material having a weight-average molecular weight Mw of 1000 or less and a block copolymer type silicone resin is provided as the sublimation thermal transfer recording medium.
- the sublimation thermal transfer recording medium is used for direct printing on the surface of a soft vinyl chloride card as a transfer object.
- FIG. 1 is a schematic perspective view of a main part showing a configuration of a sublimable thermal transfer recording medium.
- FIG. 2 is a gamma curve in each example and comparative example.
- BEST MODE FOR CARRYING OUT THE INVENTION a sublimable thermal transfer recording medium and a thermal transfer recording method to which the present invention is applied will be described in detail with reference to the drawings.
- the sublimation thermal transfer recording medium is obtained by forming a plurality of thermal transfer dye layers having different hues on one side of a substrate sheet in a face-sequential manner. For example, as shown in FIG. 1, one side of a substrate sheet 1 is provided. In addition, a yellow one-color heat transfer dye layer 2, a magenta-yellow heat transfer dye layer 3 and a cyan-color heat transfer dye layer 4 are formed in a plane-sequential manner.
- the area between the thermal transfer dye layers 2, 3, and 4 is provided to prevent re-transfer of the dye already transferred to the transfer receiving body to the sublimation thermal transfer recording medium side.
- a transparent transfer layer that is transferred to a transfer receiving body to receive a dye to be transferred next may be formed.
- the base sheet 1 of the sublimable thermal transfer recording medium may be provided with a sensor mark or the like for detecting the position of the sublimable thermal transfer recording medium, if necessary.
- the thermal transfer dye layer is not limited to the above three colors, and for example, a black thermal transfer dye layer or the like may be additionally formed.
- an image protection layer to be transferred onto a completed image may be provided.
- yellow, magenta, and cyan sublimation dyes for the thermal transfer dye layers 2 to 4.
- Various known sublimable dyes can be used as the dye contained in the dye.
- yellow dyes include azo, disazo, methine, styryl, pyridone / azo and the like and mixtures thereof.
- magenta color dye examples include azo, anthraquinone, styryl, and heterocyclic azo dyes, and a mixture thereof.
- cyan dye anthra examples thereof include a quinone type, a naphthoquinone type, a bicyclic ring type azo dye, an indooriline type, and a mixture thereof.
- a black thermal transfer dye layer a known dye can be used as the black dye.
- the thermal transfer dye layers 2 to 4 are composed of at least the above-described sublimable dye and a binder resin, and the main binder resin has a weight average molecular weight Mw of 100,000 or less, preferably Use a resin material of 600 or less. If the molecular weight of the binder resin which is the main resin is larger than the above range, the glass transition point Tg of the thermal transfer dye layers 2 to 4 becomes high, and the maximum printing density becomes insufficient.
- the type of resin material used as the binder resin is arbitrary. Mouth, polystyrene, polyvinyl butyral, polybutyrate, methacrylic resin, acrylonitrile 'styrene copolymer, polyester resin, epoxy resin, urethane resin, chlorinated polyethylene, chlorinated polypropylene, etc. can be used. . Among them, polyvinyl butyral (PVB), epoxy resin, polyester urethane and the like are preferred.
- a block copolymer silicone resin is added to the thermal transfer dye layers 2 to 4 in addition to the main binder resin.
- the block copolymer type silicone resin include a polydimethylsiloxane block copolymer and the like, and an acrylic silicone block copolymer (block type acrylic modified silicone resin) is particularly preferable.
- the polydimethylsiloxane-based block copolymer can be produced, for example, by copolymerizing a vinyl monomer using azo group-containing polydimethylsiloxane amide as an initiator.
- the polydimethylsiloxane-based block copolymer is described in detail in JP-A-10-297123, and the like, but in the present invention, it is also disclosed in JP-A-10-297123. Any of the disclosed ones can be used.
- the thermal transfer dye layer can be formed more uniformly, and the effect of suppressing the diffusion of the dye to the object to be transferred is great.
- the critical surface tension of the surface of the thermal transfer dye layer is significantly reduced, so that the efficiency as a release agent is high. .
- the amount of Si contained is preferably 5 to 30% by weight. If the amount of Si is too small, the desired effect cannot be obtained, while if the amount is too large, there is a risk that compatibility or solubility may be impaired. Further, the compounding ratio of the main binder resin and the block copolymer type silicone resin is preferably from 99: 1 to 70:30. If the proportion of the silicone resin is lower than the above range, the desired effect cannot be obtained, and if the proportion is more than the above range, compatibility and solubility may be impaired. .
- the thermal transfer dye layers 2 to 4 can be formed by a known method, for example, based on a paint in which a sublimable dye and a binder resin or a block copolymer type silicone resin are dissolved or dispersed in a solvent. It can be manufactured by applying it to one side of a material sheet and drying.
- the thickness of the thermal transfer dye layers 2 to 4 is not particularly limited, but is preferably, for example, about 0.2 to 5.
- the base sheet 1 various conventionally known base materials can be used.
- the thickness of the base sheet 1 is 1 to 30 ⁇ m, preferably 2 to 10 ⁇ .
- the surface of the base sheet 1 on which the thermal transfer dye layer is not formed may be subjected to heat treatment or the like in order to prevent fusion with a heating means such as a thermal head used during thermal transfer.
- the thermal transfer recording using the sublimable thermal transfer recording medium of the present invention can be performed by a usual method using an ordinary sublimation printer or the like. That is, the thermal transfer dye layer of the sublimable thermal transfer recording medium is brought into contact with the transferred body, and heat is applied from the back side of the sublimable thermal transfer recording medium by a thermal head or the like to perform printing on the transferred body.
- any object can be used as the object to be transferred, but with the sublimation thermal transfer recording medium of the present invention, it is also possible to directly print on the surface of a soft vinyl chloride card having a hard surface. .
- the color density tends to decrease due to the hardness of the surface.However, if the sublimable thermal transfer recording medium of the present invention is used, the color density is sufficient, and the amount of applied heat and color It is possible to achieve high-precision gradation printing with high density correlation. -.
- a thin layer of block copolymer type silicone resin is formed on one or both of the surface of the thermal transfer dye layer and the surface of the flexible vinyl chloride card. You may do so. In this case, it is possible to omit the addition of the block copolymer type silicone resin to the thermal transfer dye layer.
- a heat-resistant layer is provided on the back of a 6-im thick polyethylene terephthalate film, and an easily-adhesive undercoat layer is provided on the surface, and a cyan-color heat transfer dye layer is applied on the undercoat layer to form a sublimation heat transfer recording medium (sublimation type).
- Thermal transfer lipon was prepared.
- the cyan thermal transfer dye layer was formed by applying a paint containing a resin and a release agent shown in Table 1 by a coil bar so as to have a dry thickness of 1.0.
- the dye was Sumiplast Blue OA manufactured by Sumitomo Chemical Co., Ltd., and the solvents were methylethyl ketone, cyclohexanone, and N-methylpyrrolidone.
- Table 1 the types of the binder resin and the release agent are as follows.
- T P VB 1 Denka Butyral # 3000 K, manufactured by Denki Kagaku Kogyo Co., Ltd., Mw about 60,000
- P VB 2 Denka Butyral, manufactured by Denki Kagaku Kogyo Co., Ltd. # 6 000 C, Mw about 150,000
- Polyester urethane manufactured by Toyobo Co., Ltd., trade name Byron UR 1400, Mw about 40,000 Epoxy: manufactured by Japan Epoxy Resin Co., Ltd., trade name: Pico 100, Mw 50 00-6 000
- Block release agent Acrylic silicone block copolymer varnish, manufactured by Natco Paint, trade name S X 082
- Graft release agent Acryl silicone graft copolymer varnish, manufactured by Toagosei Co., Ltd., trade name U S-380
- Puichi Yuichi Pudding for card made by E1tr n, brand name P—310C
- Transfer object soft vinyl chloride card
- Print density measuring device Macbeth, reflection densitometer TR 924
- Example 1 0.17 0.21 0.3 0.39 1.53
- Example 3 0.16 0.21 0.31 0.42 1.4
- the present invention it is possible to eliminate background contamination and the like, and it is possible to realize high-precision gradation printing having a high correlation between the applied heat amount and the coloring density. is there.
- the thermal transfer dye layer when forming the thermal transfer dye layer, there is no problem such as separation of paint and squeezing during coating.
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04732468A EP1642744A4 (en) | 2003-06-24 | 2004-05-12 | SUBLIMATION TYPE THERMOTRANSFER MEANS AND THERMAL TRANSFER RECORDING METHOD THEREOF |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003179813A JP2005014303A (ja) | 2003-06-24 | 2003-06-24 | 昇華性熱転写記録媒体及びこれを用いた熱転写記録方法 |
JP2003-179813 | 2003-06-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004113092A1 true WO2004113092A1 (ja) | 2004-12-29 |
Family
ID=33535094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/006658 WO2004113092A1 (ja) | 2003-06-24 | 2004-05-12 | 昇華性熱転写記録媒体及びこれを用いた熱転写記録方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7074741B2 (ja) |
EP (1) | EP1642744A4 (ja) |
JP (1) | JP2005014303A (ja) |
KR (1) | KR20060022710A (ja) |
WO (1) | WO2004113092A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005103795A (ja) * | 2003-09-29 | 2005-04-21 | Sony Chem Corp | 昇華性熱転写記録媒体及びこれを用いた熱転写記録方法 |
JP6253878B2 (ja) * | 2012-10-24 | 2017-12-27 | 株式会社ミマキエンジニアリング | 印刷方法 |
CN115635785A (zh) * | 2022-09-28 | 2023-01-24 | 湖南鼎一致远科技发展有限公司 | 一种在高速打印下保持高色密度的热升华色带及高速打印承印物 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60101087A (ja) * | 1983-11-08 | 1985-06-05 | Dainippon Printing Co Ltd | 熱転写シ−ト |
JPH0577459A (ja) * | 1991-10-21 | 1993-03-30 | Dainippon Printing Co Ltd | カード類の製造方法 |
JPH08282136A (ja) * | 1995-04-14 | 1996-10-29 | Toppan Printing Co Ltd | 昇華熱転写インクリボン |
JPH09202059A (ja) * | 1996-01-29 | 1997-08-05 | Dainippon Printing Co Ltd | 熱転写シート |
JPH11139003A (ja) * | 1997-11-05 | 1999-05-25 | Matsushita Electric Ind Co Ltd | 昇華型熱転写記録用転写体及び昇華型熱転写記録用受像体 |
JP2003200671A (ja) * | 2001-10-29 | 2003-07-15 | Dainippon Printing Co Ltd | 染料受容層転写シート |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3005978B2 (ja) | 1997-01-29 | 2000-02-07 | 凸版印刷株式会社 | 感熱転写記録媒体 |
US5763358A (en) * | 1997-01-31 | 1998-06-09 | Eastman Kodak Company | Release agents for dye-donor element used in thermal dye transfer |
JP3452752B2 (ja) | 1997-02-28 | 2003-09-29 | ナトコ株式会社 | 感熱転写記録フィルム用のスティッキング防止剤および感熱転写記録フィルム |
-
2003
- 2003-06-24 JP JP2003179813A patent/JP2005014303A/ja active Pending
-
2004
- 2004-05-12 WO PCT/JP2004/006658 patent/WO2004113092A1/ja active Application Filing
- 2004-05-12 EP EP04732468A patent/EP1642744A4/en not_active Withdrawn
- 2004-05-12 KR KR1020057024684A patent/KR20060022710A/ko not_active Application Discontinuation
- 2004-06-16 US US10/869,993 patent/US7074741B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60101087A (ja) * | 1983-11-08 | 1985-06-05 | Dainippon Printing Co Ltd | 熱転写シ−ト |
JPH0577459A (ja) * | 1991-10-21 | 1993-03-30 | Dainippon Printing Co Ltd | カード類の製造方法 |
JPH08282136A (ja) * | 1995-04-14 | 1996-10-29 | Toppan Printing Co Ltd | 昇華熱転写インクリボン |
JPH09202059A (ja) * | 1996-01-29 | 1997-08-05 | Dainippon Printing Co Ltd | 熱転写シート |
JPH11139003A (ja) * | 1997-11-05 | 1999-05-25 | Matsushita Electric Ind Co Ltd | 昇華型熱転写記録用転写体及び昇華型熱転写記録用受像体 |
JP2003200671A (ja) * | 2001-10-29 | 2003-07-15 | Dainippon Printing Co Ltd | 染料受容層転写シート |
Non-Patent Citations (1)
Title |
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See also references of EP1642744A4 * |
Also Published As
Publication number | Publication date |
---|---|
US20040266620A1 (en) | 2004-12-30 |
EP1642744A4 (en) | 2007-11-21 |
KR20060022710A (ko) | 2006-03-10 |
JP2005014303A (ja) | 2005-01-20 |
EP1642744A1 (en) | 2006-04-05 |
US7074741B2 (en) | 2006-07-11 |
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