EP0705173A1 - Procede de formation d'image en mode thermique - Google Patents

Procede de formation d'image en mode thermique

Info

Publication number
EP0705173A1
EP0705173A1 EP94920462A EP94920462A EP0705173A1 EP 0705173 A1 EP0705173 A1 EP 0705173A1 EP 94920462 A EP94920462 A EP 94920462A EP 94920462 A EP94920462 A EP 94920462A EP 0705173 A1 EP0705173 A1 EP 0705173A1
Authority
EP
European Patent Office
Prior art keywords
layer
image forming
thermal imaging
imaging medium
medium according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP94920462A
Other languages
German (de)
English (en)
Inventor
Herman Jozef Uytterhoeven
Luc Gustaaf Bastiaens
Rita Maria Torfs
Bart Lutgart Aerts
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agfa Gevaert NV
Original Assignee
Agfa Gevaert NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Agfa Gevaert NV filed Critical Agfa Gevaert NV
Priority to EP94920462A priority Critical patent/EP0705173A1/fr
Publication of EP0705173A1 publication Critical patent/EP0705173A1/fr
Withdrawn legal-status Critical Current

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
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
    • B41M5/42—Intermediate, backcoat, or covering layers
    • 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
    • B41M5/38207—Contact thermal transfer or sublimation processes characterised by aspects not provided for in groups B41M5/385 - B41M5/395
    • B41M5/38214—Structural details, e.g. multilayer systems
    • 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
    • B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
    • B41M5/46—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography characterised by the light-to-heat converting means; characterised by the heat or radiation filtering or absorbing means or layers
    • B41M5/465—Infra-red radiation-absorbing materials, e.g. dyes, metals, silicates, C black
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M2205/00—Printing methods or features related to printing methods; Location or type of the layers
    • B41M2205/04—Direct thermal recording [DTR]
    • 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
    • B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
    • B41M5/42—Intermediate, backcoat, or covering layers
    • B41M5/426—Intermediate, backcoat, or covering layers characterised by inorganic compounds, e.g. metals, metal salts, metal complexes
    • 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
    • B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
    • B41M5/42—Intermediate, backcoat, or covering layers
    • B41M5/44—Intermediate, backcoat, or covering layers characterised by the macromolecular compounds
    • 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
    • B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
    • B41M5/42—Intermediate, backcoat, or covering layers
    • B41M5/44—Intermediate, backcoat, or covering layers characterised by the macromolecular compounds
    • B41M5/446—Fluorine-containing polymers

Definitions

  • the present invention relates to a process for the formation of a heat mode image, said process comprising only dry development steps.
  • Dry imaging elements are known that can be image-wise exposed using an image—wise distribution of heat. These types of dry imaging elements also called heat recording materials or heat mode materials offer the advantage in addition to an ecological advantage that they do not need to be handled in a dark room nor any other protection from ambient light is needed.
  • a disadvantage of heat mode recording materials is their low sensitivity requiring powerful exposure means. This disadvantage is probably one of the major reasons why heat mode recording materials have not found wide acceptance up till recently despite their potential advantages. Since powerful exposure means especially lasers are becoming more readily available it may be expected that said disadvantage will no longer impair the wide spreading of heat mode recording materials.
  • Heat mode recording materials are disclosed in e.g. US-P-4.123.309, US-P- .123.578, US-P-4.157.412, US-P-4.547.456 and PCT application WO 88/04237.
  • the latter application which has been followed by a similar application published as WO 93/03928, discloses a web having an image forming surface and a porous layer of an image forming substance.
  • the element further comprises a heat sensitive substance.
  • the image forming surface Upon imaging with a laser the image forming surface is liquefied at the exposed parts thereby penetrating the porous layer and improving its adherence to the web while at the non-exposed parts liquefying of the image forming surface does not take place and as a consequence the adherence of the porous layer to the web remains poor.
  • the porous layer can then be removed in the non—exposed areas using a stripping tape composed of a support and an adhesive layer. Since the thus obtained image may be easily scratched and is very poor wear resistant it is necessary to laminate a protecting layer to the image which is inconvenient and makes such a heat recording material less attractive.
  • the objects of the present invention are realized by providing a thermal imaging medium, and a process for the formation of a heat mode image, comprising the following steps :
  • thermoimagina thermal imaging medium comprising:
  • an image forming layer containing an image forming substance and a compound capable of transforming intense laser radiation into heat, said compound being the same or different from said image forming substance
  • thermoadhesive layer having a glass transition temperature T Tin between 20 °C and 60 °C and (b) laminating by heating to the upper thermoadhesive layer of said imaging medium a plain paper foil comprising no extra coating(s) on the lamination side,
  • the image forming substance and the compound transforming laser radiation into heat are one and the same substance, most preferably carbon black.
  • thermoadhesive layer preferably having a coverage of at least 10 g/m
  • lamination and delamination after exposure by means of a ordinary plain paper foil having no extra coating whatsoever on the lamination side, and preferably neither on the opposite side.
  • thermoadhesive layer TAL
  • the T_ of the TAL should be below 60 °C.
  • the adherance of the TAL on paper is also determined by the flow properties of the TAL while heating above the T_.
  • a parameter for describing this proces is the melt viscosity. This melt viscosity is also connected with the molecular weight and the cross-linking degree of the polymer(s) in the TAL. Self- evidently the T_ value of the TAL can be determined by the T_ value of the polymer(s) used.
  • a T_ below 60 °C can be the result of the use of polymers with a higher T_ value combined with the use of polymers with a lower T_, or the addition of polymeric or low-molecular plasticizers or thermosolvents.
  • T_ value below 45 °C is most preferred.
  • T_ value between 45 °C and 20 °C there is a danger for unwanted sticking of the TAL to the backside of the imaging medium or to other materials with which the imaging medium can come into contact before or during laser exposure. This can be prevented by imposing to the TAL a high melt viscosity (greater than 7000 Poise measured at 120 °C) and an elasticity corresponding to a tg ⁇ value greater than 1.30.
  • the tg ⁇ value is a measure for the elasticity as described in Polymer Chemistry : the Basic Concept, P.C. Hiemenz, 1984, edit, by M. Dekker Inc., New York.
  • Polymers with a T_ lower than 20 °C cannot be used alone because they render the TAL to sticky and this cannot be compensated anymore by strongly increasing the melt viscosity.
  • polymers with a higher T_ or with other additives like pigments, fillers, matting agents, polymeric beads, e.g. silica, titanium dioxide, polymethylmethacrylate beads, polystyrene beads, glass beads, hollow polymeric core-sheat beads and waxes, provided the resulting T_ of the layer is above 20 °C.
  • Papers with a smoothness lower than 5 Bekk.s are not suited because of bad quality of the final image.
  • the thickness of the TAL is important for the adherence during the lamination process and a minimal coverage of 10 g/ is preferred. Most preferably the thickness of the TAL is about 15 - 25 g/m , especially when using rather rough paper qualities.
  • the TAL is preferably coated from an aqueous medium. Therefore the polymers are preferably incorporated as latices.
  • Other additives can be present into the TAL to improve the layer formation or the layer properties, e.g. thickening agents, surfactants, levelling agents, thermal solvents and pigments.
  • Preferred latices are styrene-butadiene latices. These latices can contain other comonomers which improve the stablitity of the latex, such as acrylic acid, methacrylic acid and acrylamide.
  • Other possible polymer latices include polyvinylacetate, copoly(ethylene- vinylacetate) , copoly(acrylonitrile-butadiene-acrylic acid), copoly(styrene-butylacrylate) , copoly(methylmethacrylate-butadiene) , copoly(methylmethacrylate-butylmethacrylate) , copoly(methylmethacrylate-ethylacrylate) , copolyester(terephtalic acid-sulphoisophtalic acid-ethyleneglycol) , copolyester(terephtalic acid-sulphoisophtalic acid-hexanediol-ethyleneglycol) .
  • Particularly suitable polymers for use in the TAL layer are the BAYSTAL polymer types, marketed by Bayer AG, which are on the basis of styrene-butadiene copolymers. Different types with different physical properties are available. The styrene content varies between 40 and 80 weight %, while the amount of butadiene varies between 60 and 20 weight % ; optionally a few weight % (up to about 10 %) of acrylamide and/or acrylic acid can be present. Most suited are e.g. BAYSTAL KA 8558, BAYSTAL KA 8522, BAYSTAL S30R and BAYSTAL P1800 because they are not sticky at room temperature when used in a TAL layer.
  • EUDERM polymers also from Bayer AG, which are copolymers comprising n.-butylaerylate, methylmethacrylate, acrylonitrile and small amounts of methacrylic acid.
  • EUDERM polymers also from Bayer AG, which are copolymers comprising n.-butylaerylate, methylmethacrylate, acrylonitrile and small amounts of methacrylic acid.
  • Table B The physical properties of some polymers (all from Bayer AG) , of which some representatives will be used in the examples furtheron are summarized in following table B.
  • thermoadhesive layer Apart from the upper thermoadhesive layer to which the plain paper is laminated and which must comply with the requirements described above the material can contain one or more supplementary thermoadhesive layer(s) positioned between the upper TAL and the release, layer.
  • This (these) extra TAL ('s) can e.g. promote a stronger adherance to the release layer which will lead to a better image quality after the lamination - delamination process.
  • This (these) other TAL ('s) can have a different composition not obeying the physical requirements imposed to the upper TAL.
  • This (these) layer(s) can show e.g. a lower T Too and/or a lower melt viscosity and/or elasticity.
  • This (these) layer(s) can contain one polymer or a mixture of polymers, optionally in combination with low-molecular additives like plasticizers or thermosolvents.
  • Other ingredients which can be incorporated include waxes, pigments, fillers, polymer beads, glass beads, silica and titanium dioxide.
  • the image forming substance is preferably a pigment, e.g. a magnetic pigment, e.g. iron oxides, a coloured piment, e.g. copper phtalocyanine, or metal particles.
  • the most preferred pigment is carbon black. It can be used in the amorphous or in the graphite form. The preferred average particle size of the carbon black ranges from 0.01 to 1 ⁇ m.
  • carbon black can be used, preferably with a very fine average particle size, e.g. RAVEN 5000 ULTRA II (Columbian Carbon Co.), CORAX L6, FARBRUSS FW 2000, SPEZIALSCHWARZ 5, SPEZIALSCWARZ 4A, SPEZIALSCHWARZ 250 and PRINTEX U (all from Degussa Co.).
  • RAVEN 5000 ULTRA II Cold Carbon Co.
  • CORAX L6 FARBRUSS FW 2000
  • SPEZIALSCHWARZ 5 SPEZIALSCWARZ 4A
  • SPEZIALSCHWARZ 250 and PRINTEX U all from Degussa Co.
  • the image forming substance and the compound transforming intense laser radiation into heat is one and the same product.
  • the image forming substance is not absorptive for the laser radiation, which is preferably infra-red laser radiation
  • an extra compound preferably an infra-red absorbing compound is required for transforming the radiation into heat.
  • binders for the image forming layer gelatin polyvinylpyrrolidone, polyvinylalcohol, hydroxyethylcellulose, polyethyleneoxide and a broad variety of polymer latices can be considered. These latices can be film forming or non-film forming. They can comprise acid groups as a result of which they can swell in an alkaline coating medium and/or become totally or partially soluble. In this way the layer properties can be strongly influenced, e.g. less coating and drying point defects will appear.
  • the preferred binder is gelatin.
  • the preferred coverage of the r ⁇ image forming layer ranges between 0.5 and 5 g/m" 6 .
  • the release layer contains a binder and one or more of the typical ingredients for release layers known in the art such as waxes, polyethylene, silicones, fluorated polymers such as Teflon, silica particles (e.g. SEAHOSTAR KE types, Nippon Shokukai Co), colloidal silica, polymeric beads (e.g. polystyrene, polymethylmethacrylate) , hollow polymeric core/sheat beads (e.g. ROPAQUE particles, Rohm and Haas Co) , beads of siliconised pigments like siliconised silica (e.g. TOSPEARL types, Toshiba Silicones Co), and matting agents.
  • the release layer contains a mixture of polyethylene and Teflon. The preferred coverage of the release layer ranges between 0.1 and 3 g/m .
  • transparent support polyethylene terephtalate is preferred.
  • other transparent polymeric resins e.g. polycarbonate, polyvinylchloride, polyethylene, polypropylene or polystyrene can be used.
  • the support can consist of just one transparent resin.
  • the support can have a double layer stu ⁇ ture comprising a transparent resin as defined above and an extra polymeric layer, a so-called "overcoat” comprising e.g. polystyrene, a copolyester, polycarbonate, a (meth) acrylic resin, a phenolic resin, a polyurethan, an epoxy resin, a cellulose derivative, or mixtures or copolymers of these monomers.
  • Preferred polymers for use in the overcoat are polystyrene and copoly(styrene-acrylonitrile) .
  • the thermal imaging medium described is exposed information-wise by an intense laser beam.
  • Especially preferred lasers are semiconductor diode lasers and YAG-lasers e.g. Nd-YAG lasers emitting at 1064 nm.
  • the laser may have a power output between 40 and 7500 mW and preferably operates in the infra-red part of the spectrum.
  • a series of lasers can be used arranged in a particular array.
  • the heat mode material can be exposed from the side of the TAL but, more preferably, the material is exposed from the backside of the support. By doing so intense heat is produced at the interface of the image forming layer and of the support. As a consequence a surface part of the support or of the overcoat liquefies and penetrates by cappilary forces into the image forming layer thus locking this layer to the support at the image parts.
  • the plain paper foil is laminated to the TAL.
  • a roller laminator is used whereby the lamination parameters (roller temperature, roller impression and put-through speed) can be established dependent on the properties of the TAL and the paper type so that a good adhesion between paper and TAL is obtained.
  • the paper and the support of the thermal imaging medium are peeled-apar .
  • the TAL remains adhered to the paper. Only in the image-wise non-exposed areas the release layer and image forming layer wil also be removed together with the paper, while in the image-wise exposed parts the image forming layer will strongly adhere to the support and a fracture will arise between this layer and the release layer.
  • the following examples illustrate the present invention without however limiting it thereto.
  • a polyethylene foil having a thickness of 100 ⁇ is coated by the slide hopper technique with an aqueous dispersion containing 4 % of carbon black (CORAX L6, Degussa Co), 0.8 % of gelatin, and 0.6 % of a conventional wetting agent at a total dry coverage of 2 g/m 2 .
  • the dried layer is coated with a mixture of an aqueous 1.25 % polyethylene dispersion (HORDAMMER PE02, marketed by Hoechst AG) and of an aqueous 1.25 % Teflon dispersion (HOSTAFLON TF5032, marketed by Hoechst AG) at a total dry coverage of 0.5 g/m 2 .
  • HORDAMMER PE02 aqueous 1.25 % polyethylene dispersion
  • HOSTAFLON TF5032 marketed by Hoechst AG
  • TAL layer coating solution is applied containing a 50 % latex of copoly(styrene-butadiene-acrylic acid) (BAYSTAL S3OR, purchased from Bayer AG) .
  • BAYSTAL S3OR copoly(styrene-butadiene-acrylic acid)
  • the thus prepared heat mode element was exposed information- wise, using a test pattern, through the polyester support by means of Nd-YAG solid state laser having an output power of 1.6 Watt and an emission wavelenght of 1064 nm.
  • a similar heat mode material was prepared as in example 1 with the exception that in the TAL polymer BAYSTAL S3OR was replaced by BAYSTAL P1800.
  • the melt viscosity was lower and the T ⁇ was significantly lower (see table B in the description) so that the adherance was easily controlable.
  • the same adherance results were obtained with the different papers as in example 2.
  • the adherance results were good for 20 g/m 2 , 15 g/m , less good for 10 g/m 2 , and insufficient for 5 g/m .
  • a series of heat mode materials was prepared similar to example 1 with the exception that BAYSTAL S30R was replaced in the TAL by the polymers No. 2,4,5 and 10 of table B.
  • the paper sort used was No. 2 from table A.
  • the laminator roller temperature was 85 °C
  • the roller speed was 0.6 m/min
  • the pressure between the rollers corresponded to an impression of 1.5 mm. With all the TAL's of the test series good adhesion and a good image was obtained.
  • a series of heat mode materials was prepared similar to example 1 with the exception that BAYSTAL S30R was replaced in the TAL by the polymers No. 7,8 and 9 from table B giving rise to non-invention TAL's.
  • the paper sort and the lamination conditions were the same as in example 6. With No. 7 a strong unwanted adherance from surface parts to support parts of the material occurred but the final image quality was still good. On the contrary, with the polymers 8 and 9 a strong adherance from surface parts to support parts of the material occurred and no good image quality could be obtained anymore.

Abstract

Procédé de formation d'une image en mode thermique, consistant à: a) exposer, pour enregistrer des informations, à une intense lumière laser, de préférence un laser à infrarouge, un support de formation d'image thermique comprenant un substrat transparent, une couche de formation d'image contenant une substance de formation d'image, de préférence du noir de carbone, une couche de décollement supplémentaire et une couche supérieure thermo-adhésive présentant une température de transition vitreuse (Tg) comprise entre 20 et 60 °C et une couverture d'au moins 10 g/m2, b) stratifier par la chaleur une feuille de papier unie sur ce support de formation d'images, et c) détacher le substrat et la feuille de papier de sorte que la couche de formation d'images et la couche de décollement adhèrent au substrat au niveau des parties comportant des images, et que la couche de formation d'image, la couche de décollement et la couche thermo-adhésive adhèrent à la feuille de papier uni au niveau des parties sans images.
EP94920462A 1993-06-25 1994-06-23 Procede de formation d'image en mode thermique Withdrawn EP0705173A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP94920462A EP0705173A1 (fr) 1993-06-25 1994-06-23 Procede de formation d'image en mode thermique

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP93201858 1993-06-25
EP93201858 1993-06-25
PCT/EP1994/002063 WO1995000342A1 (fr) 1993-06-25 1994-06-23 Procede de formation d'image en mode thermique
EP94920462A EP0705173A1 (fr) 1993-06-25 1994-06-23 Procede de formation d'image en mode thermique

Publications (1)

Publication Number Publication Date
EP0705173A1 true EP0705173A1 (fr) 1996-04-10

Family

ID=8213928

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94920462A Withdrawn EP0705173A1 (fr) 1993-06-25 1994-06-23 Procede de formation d'image en mode thermique

Country Status (2)

Country Link
EP (1) EP0705173A1 (fr)
WO (1) WO1995000342A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0763434B1 (fr) * 1995-09-14 2000-01-19 Agfa-Gevaert N.V. Milieu de formation d'image thermique et procédé de formation d'image à partir de celui-ci
EP0775594A1 (fr) * 1995-11-22 1997-05-28 Agfa-Gevaert N.V. Procédé pour la formation d'images par voie thermique sans trous d'épingles
EP0779161B1 (fr) * 1995-12-14 2000-07-05 Agfa-Gevaert N.V. Elément d'enregistrement de l'image et procédé pour la fabrication de plaques lithographiques utilisant cet élément
EP0790137A1 (fr) * 1996-02-16 1997-08-20 Agfa-Gevaert N.V. Méthode pour former une image par la chaleur
EP0846571B1 (fr) 1996-12-04 2001-04-11 Agfa-Gevaert N.V. Procédé pour la formation d'une image améliorée par voie thermique
US8142987B2 (en) 2004-04-10 2012-03-27 Eastman Kodak Company Method of producing a relief image for printing
CN103612482B (zh) * 2013-11-22 2016-03-23 深圳市科彩印务有限公司 一种电化铝烫印性能的检测方法

Family Cites Families (3)

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Publication number Priority date Publication date Assignee Title
JP2694928B2 (ja) * 1986-12-09 1997-12-24 ポラロイド コーポレーシヨン 熱画像形成媒体
US5155003A (en) * 1990-11-21 1992-10-13 Polaroid Corporation Thermal imaging medium
AU2486792A (en) * 1991-08-16 1993-03-16 E.I. Du Pont De Nemours And Company Infra-red direct write imaging media

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9500342A1 *

Also Published As

Publication number Publication date
WO1995000342A1 (fr) 1995-01-05

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