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WO2009033589A1 - Matériau d'enregistrement thermosensible - Google Patents

Matériau d'enregistrement thermosensible Download PDF

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Publication number
WO2009033589A1
WO2009033589A1 PCT/EP2008/007150 EP2008007150W WO2009033589A1 WO 2009033589 A1 WO2009033589 A1 WO 2009033589A1 EP 2008007150 W EP2008007150 W EP 2008007150W WO 2009033589 A1 WO2009033589 A1 WO 2009033589A1
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WO
WIPO (PCT)
Prior art keywords
heat
sensitive recording
recording material
material according
recording layer
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.)
Ceased
Application number
PCT/EP2008/007150
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German (de)
English (en)
Inventor
Gerhard Stork
Annette Schreiber
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.)
Mitsubishi HiTech Paper Flensburg GmbH
Original Assignee
Mitsubishi HiTech Paper Flensburg GmbH
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 Mitsubishi HiTech Paper Flensburg GmbH filed Critical Mitsubishi HiTech Paper Flensburg GmbH
Publication of WO2009033589A1 publication Critical patent/WO2009033589A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
    • B41M5/333—Colour developing components therefor, e.g. acidic compounds
    • B41M5/3333—Non-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
    • B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
    • B41M5/337—Additives; Binders
    • B41M5/3375—Non-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
    • B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
    • B41M5/333—Colour developing components therefor, e.g. acidic compounds
    • B41M5/3333—Non-macromolecular compounds
    • B41M5/3335—Compounds containing phenolic or carboxylic acid groups or metal salts thereof

Definitions

  • the invention relates to a heat-sensitive recording material having a substrate which carries on at least one of its two sides a heat-sensitive recording layer.
  • the at least one heat-sensitive recording layer has a dye precursor and a color acceptor which react color-forming with each other under the action of heat.
  • the invention also relates to the use of the proposed heat-sensitive recording material as a ticket to the same extent.
  • Heat-sensitive recording materials of the type described above with, for example, a sheet of paper, a synthetic paper sheet or a plastic film as a substrate are known since the early years chemically reactive recording materials and enjoy a steadily growing popularity, which is due, inter alia, that their use in particular as Ticket for the ticket issuer is associated with great benefits. Because the color-forming components are stuck in the recording material itself in the heat-sensitive recording method, the toner and color-cartridge-free printers, which in their function no longer need to be controlled by anyone, can be set up in large numbers. Thus, this innovative technology has prevailed especially in public passenger transport, buses and trains as well as in air traffic, stadium and museum funds and parking ticket issuers.
  • Developers are a variety of sulfonylureas, including N- (p-to! Uensu! Phony!) - N ' -3- (p-toluenesulfony! Oxy-phenyl) urea, called to fulfill there inevitably have to be combined with a second developer.
  • a disadvantage of the known recording material of the type described above is the complicated use of two color-forming systems, which makes the recording material so known costly. Also, the document mentioned no hint that the known recording material is particularly good to print. However, it is precisely for this purpose that a task aspect for the new heat-sensitive recording material is aimed.
  • the inventors recognized that with the intended use of the new recording material as a ticket, increased market demands exist for good printing in flexographic and offset printing on the at least one side of the recording material comprising the heat-sensitive recording layer. Further, and of paramount importance to the new recording material, it is said to have excellent resistance to environmental influences such as ethanol, water and plasticizer, as well as excellent lightfastness with sufficient sensitivity to supplied heat in the form of a thermal print image.
  • a heat-sensitive recording material having only one side of a heat-sensitive recording layer.
  • a heat-sensitive recording material to be considered which in addition to the good printability and excellent resistance to environmental influences (especially ethanol) and light on the side with the heat-sensitive recording layer also has a very good back-printability
  • the front and back coatings of a centrally positioned substrate influence each other.
  • the focus of the invention is not only to be directed to the side of the new recording material having the heat-sensitive recording layer but also to its opposite rear side.
  • a heat-sensitive recording layer having on at least one side a heat-sensitive recording layer with a dye precursor and a color acceptor, wherein the dye precursor and color acceptor react in a color-forming manner under the action of heat,
  • heat-sensitive recording material is characterized in that the heat-sensitive recording layer as a color acceptor N- (p-toluenesulphonyl) -N ' -3- (p-toluenesulphonyl-oxy-phenyl) -urea according to the following formula (1):
  • 2- (2H-benzotriazol-2-yl) -p-cresol according to the formula (2) is the sole sensitizer in the heat-sensitive recording layer.
  • heat-sensitive recording materials which comprise benzotriazole-based UV-absorbing components are known from EP 0 992 363 page 4
  • a 1 is known without there a sensitizer according to the formula (2) is disclosed. Lt. According to the known proposal, by ensuring a concentration gradient for UV-absorbing agents in a plurality of coatings applied to a substrate, the problem of photostability of formed thermal printing images is to be solved.
  • Possible acceptors are known from the prior art and proven components disclosed for the present invention, partly as combination partners for the invention substantially color acceptor N- (p-toluensulphonyl) -N '-3- (p-toluensulphonyl-oxy-phenyl)
  • N- (p-toluenesulphonyl) -N ' -3- (p-toluenesulphonyl-oxy-phenyl) -urea can not be found in the known font on the other hand.
  • EP 1 842 688 A1 corresponding to WO 2006/080 293 A1 proposes Combination of a special developer with a member of a group of novel reagents. Neither the developer corresponds to the color acceptor according to formula (1) proposed here, nor does any of the group of these novel reagents correspond to the sensitizer according to formula (2) proposed on this side. Also, the use of such a sensitizer according to formula (2) is not mentioned as possible elsewhere in the literature.
  • N- (p-toluenesulphonyl) -N ' -3- (p-toluenesulphonyl-oxy-phenyl) -urea is mentioned, without any mention of a preference in this Font would come soon.
  • EP 1 738 920 A1, WO 2003/031 194 A1, EP 1 637 337 A1 and EP 1 707 399 A1 each lead to N- (p-toluenesulphonyl) -N ' -3- (p-toluenesulphonyl-oxy-phenyl) urea as one of very many possible color acceptors, which can be used in combination with sensitizers, without causing a sensitizer, as claimed here by means of formula (2) is called. page 5
  • thermosensitive recording material with color acceptors as they are similar to those according to formula (1), but the font can not be removed.
  • the color acceptor N- (p-toluensulphonyl) -N '-3- (p-toluensulphonyl-oxy-phenyl) - urea according to formula (1) of the present invention, either in combination with other color acceptors, in particular selected from the list comprising: 2,2 bis (4-hydroxyphenyl) propane, 4 - [(4- (1-methylethoxy) phenyl) sulfonyl] -phenol, 4-hydroxy-4 '-isopropoxydiphylsulfon, 4,4' - dihydroxy-diphenyl , 2,4'-dihydroxy-diphenyl sulfone, (2-hydroxyphenyl) -2- [(4-hydroxyphenyl) thio] acetamide, or very particularly preferably be incorporated as the sole color acceptor in the heat-sensitive recording layer N-.
  • ratio of the sensitizer according to formula (2) to the color acceptor according to formula (1) a range from 5:10 to 9:10 is particularly preferred, this ratio being independent of the fact whether the color acceptor according to formula (1) is used alone or in combination.
  • the inventors recognized with reference to the stated object that the recording layer can include virtually all known dye precursors, and combinations of a plurality of dye precursors are also possible.
  • dye precursors particular preference is given to:
  • Suitable binders for incorporation into the heat-sensitive recording layer are, for example, water-soluble binders such as starch, hydroxyethyl cellulose, methyl cellulose, carboxymethyl cellulose, gelatin, casein, polyvinyl alcohols, modified polyvinyl alcohols, sodium polyacrylates, acrylamide-acrylate copolymers, acrylamide-acrylate methacrylate Terpolymers, alkali salts of styrene-maleic anhydride copolymers or ethylene-maleic anhydride copolymers which can be used alone or in combination with each other, also water-insoluble latex binders such as styrene-butadiene copolymers, acrylonitrile-butadiene copolymers and methyl acrylate Butadiene copolymers are suitable as binders for incorporation into the heat-sensitive recording layer.
  • water-soluble binders such as starch, hydroxyethyl cellulose, methyl cellulose, carboxymethyl
  • polyvinyl alcohol in combination with acrylate copolymer are particularly preferred binders whose combination as the sole binder accounts for 12 to 27.5 G % by weight, based on the total weight of the recording layer, of the heat-sensitive recording layer
  • the coating composition for forming the heat-sensitive recording layer may further contain lubricants and release agents, such as metal salts of higher fatty acids, for example, zinc stearate, calcium stearate, and waxes, such as paraffin. oxidized paraffin, polyethylene, polyethylene oxide, stearamides and castor wax Further constituents of the recording layer are, for example, pigments, preferably inorganic pigments such as, for example, aluminum hydroxides, silicic acid and calcium carbonate, in which case in particular calcium carbonate, which is preferably present in an amount of from 10 to 18% by weight %, based on the total weight of the recording layer, should be included in the recording layer is considered to be preferred
  • the basis weight of the heat-sensitive recording layer is preferably between 2.5 and 12 g / m 2 and more preferably between 3 and 6.5 g / m 2 .
  • a brush for applying the heat-sensitive recording layer in particular doctor blade and (RoII) blade coating, curtain coater and air brush offer.
  • the coating color used to form the recording layer is aqueous.
  • the subsequent drying of the coating color can be done by means of microwave irradiation. Usually and proven it is just as much to supply heat, as happens by hot-air floatation dryer or contact dryer. Also conceivable is a combination of the listed dry processes.
  • a pigment-containing intermediate layer between the substrate layer and the recording layer.
  • pigments of the intermediate layer both organic void pigments and inorganic pigments have proven useful, the latter preferably selected from the group comprising natural and calcined kaolin, silica and in particular bentonite, calcium carbonate and aluminum hydroxide, in particular boehmite here.
  • such an intermediate layer can make a positive contribution to the leveling of the base layer surface, which reduces the amount of coating color necessarily required for the heat-sensitive recording layer. For this reason, offer to coat the intermediate layer leveling brush strokes, such as roller coater, doctor blade and (RoII-) Rakelstreichwerke.
  • the pigments of this intermediate layer can absorb the heat-liquefied wax constituents of the thermosensitive recording layer in the typeface formation and thus promote a safe and rapid operation of the heat-induced recording.
  • the basis weight of the pigmented intermediate layer is preferably between 5 and 20 g / m 2 and more preferably between 7 and 1 1 g / m 2 .
  • the recording material according to the invention may have a protective layer which is applied to the heat-sensitive recording layer and covers it in whole or in part.
  • the protective layer takes on a task, as it also partially fulfilled by a preferred provided backside coating Page 9
  • such a protective layer as a binder, a water-insoluble, self-crosslinking acrylic polymer, a crosslinking agent and as a pigment predominantly an alkaline-treated bentonite, wherein
  • the pigment of the protective layer consists of one or more inorganic pigments and at least 80% by weight is formed from a highly purified bentonite treated with an alkaline solution,
  • the binder of the protective layer consists of one or more water-insoluble, self-crosslinking acrylic polymers,
  • binder / pigment ratio ranges between 7: 1 and 9: 1.
  • a self-crosslinking acrylic polymer within the protective layer according to the first embodiment described herein is a self-crosslinking binder selected from the group consisting of styrene-acrylate copolymer, a copolymer of styrene / acrylic ester containing acrylamide groups, and most preferably a copolymer based on Acrylonitrile, methacrylamide and acrylic ester.
  • styrene-acrylate copolymer a copolymer of styrene / acrylic ester containing acrylamide groups
  • a copolymer based on Acrylonitrile, methacrylamide and acrylic ester e.g., a copolymer based on Acrylonitrile, methacrylamide and acrylic ester.
  • bentonite can be incorporated as a pigment and natural or precipitated calcium carbonate, kaolin, silica, aluminum hydroxide or titanium oxide in the protective layer.
  • crosslinking agents particular preference is given to those
  • the protective layer itself may be applied by means of conventional brushing, for which, inter alia, a coating color is usable, as described above and for which a surface-related mass in a range of 1, 5 to 4.5 g / m 2 is preferred or the protective layer may alternatively be printed. Processing technology and in terms of their technological properties are particularly suitable such protective layers which are curable by means of actinic radiation.
  • actinic radiation is understood to mean UV or ionizing radiation, such as electron beams.
  • a second alternative embodiment which is possible as an alternative to the first embodiment described above for a protective layer wholly or partly covering the heat-sensitive recording layer contains at least one polyvinyl alcohol and a crosslinking aid. It is preferred that the polyvinyl alcohol of the protective layer is modified with carboxyl or silanol groups.
  • Such a protective layer has a high affinity to the preferably UV-crosslinking ink used in the offset printing process, which decisively helps to meet the requirement for improved printability within the offset printing. It is also conceivable to use mixtures of different carboxyl-group- or silanol-modified polyvinyl alcohols.
  • Suitable crosslinking aids in the protective layer according to the second embodiment are in particular those selected from the group comprising: boric acid, polyamine, epoxy resin, dialdehyde, formaldehyde oligomers, polyamine nepichlorohydrin resin, dimethylurea, melamine formaldehyde. It is also possible to use mixtures of different crosslinking aids.
  • the ratio of the weight% of the modified polyvinyl alcohol to the crosslinking aid is in a range of 20: 1 to 5: 1, and more preferably in a range of 12: 1 to 7: 1 lies. It can be said that a ratio of the modified polyvinyl alcohol to the crosslinking aid of 100 parts by volume to 15 to 30 parts by volume has been proven. Page 11
  • the protective layer according to the second embodiment additionally contains an inorganic pigment.
  • the inorganic pigment is selected from the group comprising silica, aluminum hydroxide, calcium carbonate, kaolin or a mixture of said inorganic pigments.
  • the appearance of the protective layer is largely determined by the type of smoothing and the friction in the calender and calender influencing roll surfaces and their materials.
  • a preferred range is between 30% and 50%, and most preferably between 40% and 48%, measured according to Tappi 450 or ISO 2813 at a reflection angle of 75 °.
  • Another preferred range is between 10% and 15%, determined according to the same rules and parameters.
  • a particularly good printability for the offset printing process is present when the protective layer of the novel heat-sensitive recording material has the lowest possible polar fraction of the surface tension to be determined as the sum of disperse and polar fraction.
  • the surface tension is determined according to Owens Wendt as in the Journal of Applied Polymer Science, page 12
  • a suitable range for the measurements of the polar component of the surface tension is above zero and below 15 mN / m (milli-Newton per meter).
  • a polar fraction of the surface tension is particularly preferably less than 10 mN / m.
  • the novel recording material has a non-heat-sensitive, backside pigment coating.
  • Particularly suitable pigments in the backcoat have been calcium carbonate - preferably having a particle size in a colloidal range of 60% ⁇ 2 ⁇ m to 90% ⁇ 2 ⁇ m - and / or magnesium carbonate. The following pigments were also able to convince with positive results:
  • Clay, silicic acid, silica having a preferred mean particle size in a range from 1 to 6 ⁇ m
  • Aluminum hydroxide and boehmite having possible average particle sizes of up to 0.5 to 3 ⁇ m, but very particular preference is given to those boehmite products which have an average particle size in the range from 10 to 100 nm,
  • talc with a preferred average particle size in a range of 1 to 10 microns.
  • the backcoat comprises at least one component acting as a crosslinking agent based on polyurethane, preferably an anionic polyurethane in aqueous solution, for example Eka SP AP 29, Eka Chemicals AB, 32301 Düren.
  • a crosslinking agent based on polyurethane preferably an anionic polyurethane in aqueous solution, for example Eka SP AP 29, Eka Chemicals AB, 32301 Düren.
  • the backcoat preferably comprises binders and in particular starch, styrene-butadiene latex and optionally carboxymethyl cellulose.
  • binders and in particular starch, styrene-butadiene latex and optionally carboxymethyl cellulose.
  • the mixture of different binders in sometimes highly divergent mixing ratios is possible and preferred.
  • foamer and components for controlling the viscosity according to the respective requirements of conventional additives.
  • the backcoating preferably has 1 to 5% by weight of starch and, with particular preference, corn starch and 4 to 20% by weight, very particularly preferably 12 to 19% by weight. %, Styrene butadiene latex.
  • Particularly positive results can be achieved with a coating weight for the back coating in a range of 2 to 15 g / m 2 .
  • a range for the coating weight of the back coating of 2.5 to 4.5 g / m 2
  • a range of 8.5 to 12 g / m 2 is very particularly preferred.
  • Particularly suitable coating units for application of the backside coating are, in particular, equalizing application devices, such as doctor blade and doctor blade coaters, as well as roller coating units, without being restricted to this in any way.
  • the backside coating is formed in two layers, of which the first layer oriented toward the substrate layer can be formed as a pure binder pigment coating, while the second outer layer containing the crosslinking agent acting component based on polyurethane.
  • the second layer containing the crosslinking agent acting component based on polyurethane.
  • both the backside coating and the heat-sensitive recording layer may be coated and dried in a single operation, for example, including the protective layer completely covering it become.
  • such a coating machine (a) a rolling device, (b) a first coating, for example, a curtain coater, an air brush o- a roller blade coating unit for applying the heat-sensitive recording layer, (c) a first contactless Schwebetrocknerkanal (d) a curtain coater or an airbrush for applying the protective layer, (e) optional and depending on the type a contactless web guiding system, (f) a film applicator for application of the backside coating, (g) a second non-contact floating dryer channel, (h) an after-dryer section with several drying cylinders, (i) a remoistening system or a coating installation such as a film applicator for optimizing the flatness or for reducing the roll tendency, (j) an IR drying system, (k) one or more calenders with one or more press nips each in particular using zonenregelbaren- and / or shoe press rolls or belt calender and ( I) provide a retractor.
  • a first coating for example,
  • paper is the substrate that has prevailed on the market with regard to the good environmental compatibility because of good recyclability and is preferred in the context of the invention.
  • a paper web of bleached and ground deciduous and softwood pulps with a basis weight of 67 g / m 2 with the addition of customary additives in conventional amounts is produced on a fourdrinier paper machine as the substrate layer.
  • a mainly calcined kaolin pigment, Styrolbutadienlatex as a binder and starch as Cobinder having intermediate layer of 9 g / m 2 is applied online within the coater with a roller blade coating.
  • thermosensitive recording layer having a basis weight of 5.4 g / m 2 , by means of air brush, is applied to the intermediate layer in this order by means of a doctor blade coater a protective layer of 2.0 g / m 2 and applied by means of roller coater with downstream roller blade a back coat of 3 g / m 2 .
  • Example 1 of the invention comprises Tinuvin ® P
  • Comparative Example 2 includes Tinuvin ® 144
  • Comparative example 3 contains only the Tinuvin ® 234
  • Comparative example 4 containing Tinuvin ® 312
  • Comparative example 5 contains Tinuvin ® Page 16
  • pigment a highly purified, alkaline treated bentonite with platelet structure
  • binder the aqueous dispersion of a self-crosslinking copolymer of acrylonitrile, methacrylamide and acrylic ester and as a crosslinking agent polyamide epichlorohydrin resin.
  • a binder: pigment ratio of 8: 1 and a binder to crosslinker ratio of 5.5: 1 are set.
  • the percentage resistance of a Thermoprobeaustikes against Ethanoi or to light respectively black / white checkered-designed Thermoprobeaustike with a device of the type Atlantek 400 made by Viex (USA) created using a thermal head with resolution of 300 dpi and an energy per unit area of 16 mJ / mm 2 is used.
  • This treatment in the case of percent resistance to ethanoi, provides for dipping the Thermoprobertediges in a 25% ethanol solution (25 vol .-% solution, 23 ° C) over 20 minutes. The printout is then carefully blotted with blotting paper and allowed to rest for 24 hours at 23 ° and 50% humidity.
  • thermoprob expression is carried out until an energy of 64,800 kJ / m 2 has been reached. The print will then rest for 24 hours at 23 ° and 50% humidity.
  • the determination of the dynamic printing density at three points of the black-colored areas is carried out again with the densitometer Gretag MacBeth TYPE D19C NB / U.
  • the respective mean values of the measurements before / after the bath in the ethanol solution and before / after the light irradiation are formed and the mean value after the bath (after the irradiation) as a percentage of the mean value before the bath (before the irradiation).
  • thermoprobe print-out using an Atlantek 400 device from Viex (USA) using a thermal head with a resolution of 300 dpi and an energy per unit area of 11.7 mJ / mm 2 .
  • the print density even of the black-colored areas are measured with the densitometer Gretag MacBeth TYPE D19C NB / U (Gretag MacBeth, 8105 Regensdorf, Switzerland), where the dynamic printing densities are measured at three points for each measured value and the arithmetic mean is formed from the three individual values becomes.
  • the resistance to ethanol as an example of the environmental resistance, the resistance to light and the sensitivity to supplied heat were in the form of the samples It.
  • Comparative Examples 2 to 6 a thermal print image measured. The measured values can be found in the last three columns of Table 1.
  • Example 1 fulfills the requirements of excellent resistance to environmental influences as well as excellent light resistance combined with sufficient sensitivity to supplied heat in the form of a thermal printing image.
  • a very good printability was determined on the samples of Example 1 according to the invention, and, in view of the offset printability, also excellent pick resistance.
  • Comparative Example 3 has a higher resistance to ethanol than the inventive Example 1, but the measured values of Comparative Example 3 are far too poor in light resistance and dynamic printing density: in the context of the invention, the light resistance should preferably one Value should exceed 55%, the dynamic printing density should preferably exceed a value of 1.0 ODU and the resistance to ethanol should preferably exceed a value of 80% - particularly preferably have a value of at least 81%, wherein the values mentioned with reference to the above definition for metrological detection of the corresponding measured variables apply.
  • Page 20 the values mentioned with reference to the above definition for metrological detection of the corresponding measured variables apply.
  • Comparative Example 6 has higher dynamic print density values than Inventive Example 1, the Comparative Example 6 readings are far too poor in light fastness and resistance to ethanol - even worst, in terms of resistance to ethanol Value in the test series.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)

Abstract

L'invention concerne un matériau d'enregistrement thermosensible pourvu d'un support qui présente sur au moins une face une couche d'enregistrement thermosensible comprenant un précurseur de colorant et un accepteur de couleur, ce précurseur de colorant et cet accepteur de couleur réagissant l'un avec l'autre sous l'effet de la chaleur de façon à produire une coloration. Le matériau d'enregistrement thermosensible selon l'invention se caractérise en ce que la couche d'enregistrement thermosensible présente comme accepteur de couleur de la N-(p-toluènesulfonyl)-N'-3-(p-toluènesulfonyl-oxy-phényl)-urée représentée par la formule (1) et comme sensibilisateur du 2-(2H-benzotriazol-2-yl)-p-crésol représenté par la formule (2).
PCT/EP2008/007150 2007-09-10 2008-09-02 Matériau d'enregistrement thermosensible Ceased WO2009033589A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07017651A EP2033801B1 (fr) 2007-09-10 2007-09-10 Matériau d'enregistrement sensible à la chaleur
EP07017651.6 2007-09-10

Publications (1)

Publication Number Publication Date
WO2009033589A1 true WO2009033589A1 (fr) 2009-03-19

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Country Link
EP (1) EP2033801B1 (fr)
AT (1) ATE458621T1 (fr)
DE (1) DE502007002945D1 (fr)
ES (1) ES2339167T3 (fr)
WO (1) WO2009033589A1 (fr)

Cited By (1)

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DE102009016108A1 (de) * 2009-04-03 2010-10-07 Mitsubishi Hitec Paper Flensburg Gmbh Wärmeempfindliches Aufzeichnugnsmaterial

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Publication number Priority date Publication date Assignee Title
DE102008057270A1 (de) * 2008-11-13 2010-05-20 Kanzan Spezialpapiere Gmbh Aufzeichnungsmaterial
EP2505374B1 (fr) * 2011-04-01 2014-03-05 Mitsubishi HiTec Paper Europe GmbH Matériel d'enregistrement sensible à la chaleur, son utilisation et son procédé de fabrication
DE102011114129A1 (de) * 2011-09-23 2013-03-28 Mitsubishi Hitec Paper Europe Gmbh Aufzeichnungsmaterial zur Offset-Bedruckung
ES2509116T3 (es) * 2011-09-30 2014-10-17 Mitsubishi Hitec Paper Europe Gmbh Aceptor de color que reacciona formando color con un precursor de colorante, y material de registro termosensible con un aceptor de color de este tipo

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Publication number Priority date Publication date Assignee Title
EP0159874A2 (fr) * 1984-04-16 1985-10-30 Minnesota Mining And Manufacturing Company Elimination des taches dans un matériel pour l'enregistrement thermique
WO2003031194A1 (fr) * 2001-10-12 2003-04-17 Jujo Thermal Oy Materiau d'enregistrement thermosensible
EP1637337A1 (fr) * 2003-06-25 2006-03-22 Asahi Kasei Chemicals Corporation Revelateur pour matieres d'enregistrement
WO2006080293A1 (fr) * 2005-01-28 2006-08-03 Oji Paper Co., Ltd. Materiau d'impression sensible a la chaleur
EP1707399A1 (fr) * 2004-01-13 2006-10-04 Nippon Paper Industries Co., Ltd. Support d'enregistrement thermosensible du type a enregistrement laser
JP2006297840A (ja) * 2005-04-22 2006-11-02 Nippon Soda Co Ltd 記録材料及び記録シート
EP1738920A1 (fr) * 2004-04-22 2007-01-03 Oji Paper Company Limited Corps d'enregistrement thermosensible

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Publication number Priority date Publication date Assignee Title
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DE502007002945D1 (de) 2010-04-08
EP2033801B1 (fr) 2010-02-24

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