EP2910384B1 - Matériel d'enregistrement thermosensible doté d'une combinaison d'absorbeurs de couleur d'un nouveau type - Google Patents

Matériel d'enregistrement thermosensible doté d'une combinaison d'absorbeurs de couleur d'un nouveau type Download PDF

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Publication number
EP2910384B1
EP2910384B1 EP14156227.2A EP14156227A EP2910384B1 EP 2910384 B1 EP2910384 B1 EP 2910384B1 EP 14156227 A EP14156227 A EP 14156227A EP 2910384 B1 EP2910384 B1 EP 2910384B1
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EP
European Patent Office
Prior art keywords
heat
sensitive recording
recording material
recording layer
color acceptor
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.)
Not-in-force
Application number
EP14156227.2A
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German (de)
English (en)
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EP2910384A1 (fr
Inventor
Dr. Gerhard Stork
Matthias Neukirch
Diana Valentina Becerra Siabato
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Mitsubishi HiTec Paper Europe GmbH
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Mitsubishi HiTec Paper Europe GmbH
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Priority to EP14156227.2A priority Critical patent/EP2910384B1/fr
Priority to ES14156227.2T priority patent/ES2606479T3/es
Priority to PCT/EP2015/052750 priority patent/WO2015124462A1/fr
Priority to KR1020167025993A priority patent/KR20160130406A/ko
Priority to US15/118,740 priority patent/US9931877B2/en
Priority to CN201580009022.7A priority patent/CN106061747B/zh
Publication of EP2910384A1 publication Critical patent/EP2910384A1/fr
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Publication of EP2910384B1 publication Critical patent/EP2910384B1/fr
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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
    • B41M5/3331—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
    • B41M5/323—Organic colour formers, e.g. leuco dyes
    • B41M5/327—Organic colour formers, e.g. leuco dyes with a lactone or lactam ring
    • B41M5/3275—Fluoran 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
    • 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
    • B41M5/333—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
    • 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]

Definitions

  • the invention first relates to a heat-sensitive recording material having a web-shaped substrate and at least one heat-sensitive recording layer, formed on at least one of the two sides of the web-shaped substrate, this heat-sensitive recording layer according to the invention containing a novel color acceptor combination.
  • Heat-sensitive and color-responsive recordable thermal recording materials have been known for many years and enjoy a generally unbroken popularity, due, among other things, to the great advantages associated with their use for the ticket and / or purse issuing businessman. Because the color-forming components, dye precursors and heat-responsive color acceptors, also called (color) developers, are incorporated in the recording material itself in such a heat-sensitive recording process, the toner and color-cartridge-free thermal printers known in the art may Function no longer need to be regularly controlled by anyone, be set up in large numbers. Thus, this innovative technology has largely prevailed, especially in public transport and retail.
  • the US 2004 / 258,857 A1 finally proposes a non-reactive recording material whose elastic substrate contains polylactic acid. From the US 2005 / 112,302 A1 Again, an ink-jet recording element is known, of which an ink-permeable coating contains a polylactic acid-based material.
  • the R in formula (1) is an alkyl group comprising 1 to 25 carbon atoms, most preferably 10 to 20 carbon atoms.
  • a color acceptor compound under the name Gallusklarestearylester or stearyl gallate.
  • Compounds of the formula (1) are substances which are composed of naturally occurring substances and which are used, in particular, as antioxidants in foods, for example ethyl gallate (E 313), propyl gallate (E 310), octyl gallate (E 311) and dodecyl gallate ( E 312) for use, among others, in baked goods, margarine, marzipan, nougat, dry soups and chips.
  • lactic acid can be prepared in accordance with formula (2)
  • Polylactic acid is characterized in that it is a fully biodegradable plastic as a specific embodiment of the polyester, which is particularly true when the polylactic acid is a compound of dextrorotatory lactic acids (L + lactic acid), which in the context of the present invention as very particularly preferably.
  • polylactic acid contains an unusable hydroxyl group and also only one carboxyl group which is reactive with the color precursor precursors at the two ends of the long polymer molecules, it constitutes a preferred embodiment of the invention when oligomers of lactic acid are used as secondary color acceptor or as part of the secondary polymer. Color acceptor are used.
  • the oligomers of lactic acid are representable according to formula (3):
  • Such a molecule can be represented according to formula (4):
  • a very particularly preferred example of a dibasic acid which is very useful in the context of the present invention is oxalic acid, which leads to a molecule as a secondary color acceptor from a central oxalic acid molecule and two oligomers of lactic acid.
  • a molecule is considered to be a particularly preferred example of a secondary color acceptor of the present invention capable of forming, together with a color acceptor compound represented by the formula (1), especially and most preferably, together with a gallic acid stearyl ester and a dye precursor to react to a visually recognizable color.
  • a secondary color acceptor consisting of a central citric acid molecule and three oligomers of lactic acid
  • Such a molecule is considered to be a particularly preferred example of a secondary color acceptor of the present invention capable of forming, together with a color acceptor compound represented by the formula (1), especially and most preferably, together with a gallic acid stearyl ester and a dye precursor to react to a visually recognizable color.
  • a color acceptor compound according to formula (1) and a secondary color acceptor of a central citric acid molecule and three oligomers of lactic acid are as additional constituents of the heat-sensitive recording layer in the present invention also additional, then, for example, classic color acceptors, as in paragraph Be mentioned, possible.
  • Representable is a molecule of a central citric acid molecule and three oligomers of lactic acid according to formula (5):
  • the secondary color acceptors prevent on the basis of Oligomers of lactic acid according to formula (3) this yellowing surprisingly largely, so that a proposed heat-sensitive recording material completely convincing both in terms of its heat sensitivity as well as in terms of its Farbort-stability.
  • thermosensitive recording material proposed herein preferably has at least one substance selected from the list as possible dye precursors in the thermosensitive recording layer, comprising: 3-diethylamino-6-methyl-7-anilinofluoran, 3-dibutylamino-6-methyl-7 Anilinofluoran, 3- (N -methyl-N-propyl) amino-6-methyl-7-anilinofluoran, 3- (N-ethyl-N-isoamyl) amino-6-methyl-7-anilinofluoran, 3- (N-methyl -N-cyclohexyl) amino-6-methyl-7-anilinofluoran, 3- (N-ethyl-N-tolyl) amino-6-methyl-7-anilinofluoran and 3- (N-ethyl-N-tetrahydrofuryl) amino-6 methyl-7-anilinofluoran.
  • 3-dibutylamino-6-methyl-7-anilinofluoran also known as
  • the heat-sensitive recording layer has an amount of fluoran-based dye precursors, especially 3-dibutylamino-6-methyl-7-anilinofluoran, ranging from 0.25 g / m 2 to 0.7 g / m 2 lies.
  • fluoran-based dye precursors especially 3-dibutylamino-6-methyl-7-anilinofluoran, ranging from 0.25 g / m 2 to 0.7 g / m 2 lies.
  • a ratio by weight of (atro) of Fluoranase-based dye precursor to the color acceptor compounds according to formula (1) in a range of 1: 1.5 to 1: 2.5 and even better in a range of 1: 1.55 to 1: 2 is set.
  • the heat-sensitive recording material according to the invention can completely dispense with sensitizers, which is considered in the context of the present invention as preferred and consistent.
  • Sensitisers which may be used to increase the thermal sensitivity are used in such a case, in particular sensitisers such as: 2- (2H-benzotriazol-2-yl) -p-cresol, benzyl p-benzyloxy-benzoate , Methylolstearamide, stearic acid amide, p-benzylbiphenyl, 1,2-di (phenoxy) ethane, 1,2-di (m-methylphenoxy) ethane, m-terphenyl, dibenzyl oxalate, benzyl naphthyl ether, dimethyl terephthalate and diphenylsulfone.
  • Suitable binders for incorporation into the heat-sensitive recording layer are, for example, water-soluble binders such as starch, hydroxyethylcellulose, methylcellulose, carboxymethylcellulose, gelatin, casein, polyvinyl alcohols, modified polyvinyl alcohols, ethylene-vinyl alcohol copolymers, sodium polyacrylates, acrylamide-acrylate copolymers, acrylamide-acrylate-methacrylate Terpolymers and alkali metal salts of styrene-maleic anhydride copolymer or ethylene-maleic anhydride copolymer, which binders can be used alone or in combination with one another; Water-insoluble latex binders such as styrene-butadiene copolymers, acrylonitrile-butadiene copolymers and methyl acrylate-butadiene copolymers are also suitable as binders for incorporation into the heat-sensitive recording layer.
  • water-soluble binders such as starch, hydroxy
  • 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, Stearamide and castor wax.
  • 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, Stearamide and castor wax.
  • the heat-sensitive recording material according to the invention comprises a pigment-containing intermediate layer, which is arranged between the substrate and the heat-sensitive recording layer.
  • Suitable pigments of the intermediate layer are both organic void pigments and inorganic pigments, the latter preferably selected from the group comprising natural and calcined kaolin, silica and in particular bentonite, calcium carbonate and aluminum hydroxide and here especially boehmite.
  • organic void pigments and inorganic pigments the latter preferably selected from the group comprising natural and calcined kaolin, silica and in particular bentonite, calcium carbonate and aluminum hydroxide and here especially boehmite.
  • such an intermediate layer can make a positive contribution to the leveling of the surface to be coated, which reduces the amount of coating color necessarily to be applied for the heat-sensitive recording layer. For this reason, offer to coat the pigment-containing intermediate layer leveling coating, such as Walzenstreichwerke, doctor blade and (roll) doctor blade coating.
  • 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 pigment-containing intermediate layer is preferably between 5 and 20 g / m 2 and more preferably between 7 and 11 g / m 2 .
  • paper and here especially a non-surface treated base paper is the substrate that has prevailed on the market with regard to the good environmental compatibility because of good recyclability and is preferred for the purposes of the invention.
  • a non-surface treated base paper is to be understood as meaning a base paper which has not been treated in a size press or in a coating device.
  • films of polypropylene, polyolefin and polyolefin-coated papers, for example, are possible as a substrate without such a design having an exclusive character.
  • a paper pulp of eucalyptus pulp and other pulp fibers with fillers and water is applied in a mixing chest. Further constituents of the pulp to be added are resin size for engine sizing with an amount of 0.6% by weight (atro), based on the total weight of the pulp, and also other customary additives, such as, for example, pigments and / or optical brighteners. After completion of the pulp this is then fed to a fourdrinier paper machine, where it is processed into a paper web with a basis weight of 69 g / m 2 .
  • the paper web is dried within the paper machine by means of radiant heaters and in contact with hot rolls, smoothed here in a Mehrwalzenglätttechnik and then rolled up as Halbfertigpapiertambour.
  • the thus prepared Halbfertigpapiertambour is fed to a coating machine, where the continuously rewound paper web is fed to a doctor blade coater, where the application of prepared coating compositions each for forming heat-sensitive recording layers each having a basis weight of 4.2 g / m 2 on the previously applied and already dried pigmented intermediate layer happens.
  • the coating composition used for forming the heat-sensitive recording layer there are used:
  • the heat-sensitive recording layer is then dried by means of a hot-air float dryer and in contact with hot rolls and smoothed in a Mehrwalzenglätttechnik. Finally, the reeling of the now completed inventive and comparative heat-sensitive recording materials takes place.
  • ODU Optical Density Units
  • Thermoprobeaustik with a device of the type Atlantek 400 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.
  • thermoprobographical prints were measured twice, once before and once after a seven-day storage at 40 ° C and 95% humidity.
  • the changes in the color locus which can be clearly seen by considering the individual values of the L * a * b * color space (It definition in DIN EN ISO 11664-4), because the L * value is more likely to be the Brightness of a measurement site, the a * value reflects its red / green orientation and the b * value its blue / yellow orientation.
  • thermosensitive recording material As claimed, the examples fully confirm the expectations and demonstrate the advantages of a thermosensitive recording material as claimed.

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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)

Claims (13)

  1. Matériau d'enregistrement thermosensible, comprenant :
    - un substrat en feuille continue, comprenant un recto et un verso qui lui est opposé,
    - au moins une couche d'enregistrement thermosensible sur au moins l'une des deux faces du substrat en feuille continue,
    caractérisé en ce que la couche d'enregistrement thermosensible contient en tant qu'accepteur de couleur une combinaison constituée d'au moins
    - un, deux, trois ou plus que trois (composés) accepteurs de couleur de formule (1)
    Figure imgb0021
     dans laquelle R est un groupe alkyle,
    - et d'au moins un accepteur de couleur secondaire, contenant des oligomères de l'acide lactique, correspondant à la formule (3)
    Figure imgb0022
  2. Matériau d'enregistrement thermosensible selon la revendication 1, caractérisé en ce que R, dans la formule (1), est un groupe alkyle comprenant 1 à 25 atomes de carbone.
  3. Matériau d'enregistrement thermosensible selon l'une des revendications 1 et 2, caractérisé en ce que la couche d'enregistrement thermosensible contient en tant qu'accepteur de couleur une combinaison constituée d'au moins
    - un, deux, trois ou plus que trois (composés) accepteurs de couleur de formule (1)
    Figure imgb0023
     dans laquelle R est un groupe alkyle,
    - et d'au moins un accepteur de couleur secondaire, contenant une molécule ou formé d'une molécule constituée d'un acide n-valent et d'oligomères, regroupés n-fois autour de cet acide, de l'acide lactique, correspondant à la formule (3).
    Figure imgb0024
  4. Matériau d'enregistrement thermosensible selon l'une des revendications 1 à 3, caractérisé en ce que la couche d'enregistrement thermosensible contient en tant qu'accepteur de couleur une combinaison constituée d'au moins
    - l'ester stéarylique de l'acide gallique,
    - et une molécule, en tant qu'accepteur de couleur secondaire, constituée d'une molécule d'acide oxalique centrale et de deux oligomères de l'acide lactique.
  5. Matériau d'enregistrement thermosensible selon l'une des revendications 1 à 3, caractérisé en ce que la couche d'enregistrement thermosensible contient en tant qu'accepteur de couleur une combinaison constituée d'au moins
    - l'ester stéarylique de l'acide gallique,
    - et une molécule en tant qu'accepteur de couleur secondaire, constituée d'une molécule d'acide citrique centrale et de trois oligomères de l'acide lactique.
  6. Matériau d'enregistrement thermosensible selon l'une des revendications 1 à 5, caractérisé en ce que le rapport, en % en poids (sec absolu), des composés accepteurs de couleur correspondant à la formule (1) aux accepteurs de couleur secondaires contenant des oligomères de l'acide lactique correspondant à la formule (3), est compris dans la plage de 3,25:1 à 1:1.
  7. Matériau d'enregistrement thermosensible selon l'une des revendications 1 à 6, caractérisé en ce que la couche d'enregistrement thermosensible comprend, en tant que précurseur de colorant, au moins une substance qui est choisie dans la liste comprenant le 3-diéthylamino-6-méthyl-7-anilinofluoranne, le 3-dibutylamino-6-méthyl-7-anilinofluoranne, le 3-(N-méthyl-N-propyl)amino-6-méthyl-7-anilinofluoranne, le 3-(N-éthyl-N-isoamyl)amino-6-méthyl-7-anilinofluoranne, le 3-(N-méthyl-N-cyclohexyl)amino-6-méthyl-7-anilinofluoranne, le 3-(N-éthyl-N-tolyl)amino-6-méthyl-7-anilinofluoranne et le 3-(N-éthyl-N-tétrahydrofuryl)amino-6-méthyl-7-anilinofluoranne.
  8. Matériau d'enregistrement thermosensible selon la revendication 7, caractérisé en ce que le rapport, en % en poids (sec absolu) du précurseur de colorant à base de fluoranne aux composés accepteurs de couleur correspondant à la formule (1), est compris dans la plage de 1:1,5 à 1:2,5.
  9. Matériau d'enregistrement thermosensible selon l'une des revendications 1 à 8, caractérisé en ce que la couche d'enregistrement thermosensible contient en tant que liant une substance choisie dans la liste comprenant le poly(alcool vinylique), un copolymère éthylène-alcool vinylique ou une combinaison de poly(alcool vinylique) et d'un copolymère éthylène-alcool vinylique.
  10. Matériau d'enregistrement thermosensible selon l'une des revendications 1 à 9, caractérisé en ce que la couche d'enregistrement thermosensible contient, outre
    - la combinaison d'accepteurs de couleur,
    - au moins un précurseur de colorant,
    - un liant,
    en plus un pigment.
  11. Matériau d'enregistrement thermosensible selon la revendication 10, caractérisé en ce que le pigment, dans la couche d'enregistrement thermosensible, est un pigment choisi dans la liste comprenant le kaolin et l'(hydr)oxyde d'aluminium.
  12. Matériau d'enregistrement thermosensible selon l'une des revendications 10 et 11, caractérisé en ce que la quantité du pigment dans la couche d'enregistrement thermosensible, rapportée au poids total de la couche d'enregistrement thermosensible, est comprise dans la plage de 8 à 18 % en poids (sec absolu).
  13. Matériau d'enregistrement thermosensible selon l'une des revendications 1 à 12, caractérisé en ce que le matériau d'enregistrement thermosensible comprend en outre une couche intermédiaire contenant un pigment, qui est disposée entre le substrat et la couche d'enregistrement thermosensible.
EP14156227.2A 2014-02-21 2014-02-21 Matériel d'enregistrement thermosensible doté d'une combinaison d'absorbeurs de couleur d'un nouveau type Not-in-force EP2910384B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP14156227.2A EP2910384B1 (fr) 2014-02-21 2014-02-21 Matériel d'enregistrement thermosensible doté d'une combinaison d'absorbeurs de couleur d'un nouveau type
ES14156227.2T ES2606479T3 (es) 2014-02-21 2014-02-21 Material de registro termosensible con una combinación novedosa de aceptores cromogénicos
PCT/EP2015/052750 WO2015124462A1 (fr) 2014-02-21 2015-02-10 Matériau d'enregistrement thermosensible muni d'une nouvelle combinaison d'accepteurs de couleur
KR1020167025993A KR20160130406A (ko) 2014-02-21 2015-02-10 신규한 색 수용체 배합을 갖는 감열 기록 재료
US15/118,740 US9931877B2 (en) 2014-02-21 2015-02-10 Heat-sensitive recording material having a novel color acceptor combination
CN201580009022.7A CN106061747B (zh) 2014-02-21 2015-02-10 具有新型的色彩受体组合物的热敏性记录材料

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EP14156227.2A EP2910384B1 (fr) 2014-02-21 2014-02-21 Matériel d'enregistrement thermosensible doté d'une combinaison d'absorbeurs de couleur d'un nouveau type

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EP2910384A1 EP2910384A1 (fr) 2015-08-26
EP2910384B1 true EP2910384B1 (fr) 2016-09-21

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US (1) US9931877B2 (fr)
EP (1) EP2910384B1 (fr)
KR (1) KR20160130406A (fr)
CN (1) CN106061747B (fr)
ES (1) ES2606479T3 (fr)
WO (1) WO2015124462A1 (fr)

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US11084308B2 (en) 2015-11-11 2021-08-10 Papierfabrik August Koehler Se Heat-sensitive recording material

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EP3505358A1 (fr) * 2017-01-10 2019-07-03 Mitsubishi HiTec Paper Europe GmbH Nouveau révélateur de couleur pour un support d'enregistrement thermosensible
JP6856410B2 (ja) * 2017-03-07 2021-04-07 三光株式会社 感熱記録材料
JP6856409B2 (ja) * 2017-03-07 2021-04-07 三光株式会社 感熱記録材料
EP3482964A1 (fr) * 2017-11-13 2019-05-15 Mitsubishi HiTec Paper Europe GmbH Matériau d'enregistrement thermosensible à base de pla

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US20040258857A1 (en) 2003-06-16 2004-12-23 Eastman Kodak Company Imaging media with high elastic modulus and improved long term stability
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EP2574645B1 (fr) 2011-09-30 2014-06-25 Mitsubishi HiTec Paper Europe GmbH Accepteur de couleur réagissant en formant des couleurs avec un précurseur de colorant et matériau d'enregistrement sensible à la chaleur doté d'un tel accepteur de couleur

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ES2606479T3 (es) 2017-03-24
CN106061747B (zh) 2019-08-20
US20170043601A1 (en) 2017-02-16
EP2910384A1 (fr) 2015-08-26
US9931877B2 (en) 2018-04-03
WO2015124462A1 (fr) 2015-08-27
CN106061747A (zh) 2016-10-26

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