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EP2487043B1 - Procédé de fabrication d'un matériel d'enregistrement sensible à la chaleur - Google Patents

Procédé de fabrication d'un matériel d'enregistrement sensible à la chaleur Download PDF

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Publication number
EP2487043B1
EP2487043B1 EP20110154121 EP11154121A EP2487043B1 EP 2487043 B1 EP2487043 B1 EP 2487043B1 EP 20110154121 EP20110154121 EP 20110154121 EP 11154121 A EP11154121 A EP 11154121A EP 2487043 B1 EP2487043 B1 EP 2487043B1
Authority
EP
European Patent Office
Prior art keywords
heat
coating composition
sensitive recording
coating
substrate
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
EP20110154121
Other languages
German (de)
English (en)
Other versions
EP2487043A1 (fr
Inventor
Gerhard Dr. Stork
Falk Jahns
Matthias Marx
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 HiTec Paper Europe GmbH
Original Assignee
Mitsubishi HiTec Paper Europe 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 HiTec Paper Europe GmbH filed Critical Mitsubishi HiTec Paper Europe GmbH
Priority to EP20110154121 priority Critical patent/EP2487043B1/fr
Priority to EP20110157084 priority patent/EP2487044B1/fr
Priority to DK11157084T priority patent/DK2487044T3/da
Priority to ES11157084T priority patent/ES2443162T3/es
Priority to PCT/EP2012/052154 priority patent/WO2012107507A1/fr
Priority to US13/984,869 priority patent/US9079444B2/en
Priority to PCT/EP2012/052151 priority patent/WO2012107504A1/fr
Publication of EP2487043A1 publication Critical patent/EP2487043A1/fr
Application granted granted Critical
Publication of EP2487043B1 publication Critical patent/EP2487043B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B41M5/3335—Compounds containing phenolic or carboxylic acid groups or metal salts thereof
    • B41M5/3336—Sulfur compounds, e.g. sulfones, sulfides, sulfonamides
    • 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
    • B41M5/337—Additives; Binders
    • B41M5/3372—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
    • B41M5/40—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
    • B41M5/405—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 layers cured by radiation
    • 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
    • B41M2205/34—Both sides of a layer or material are treated, e.g. coated
    • 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
    • B41M2205/36—Backcoats; Back layers
    • 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
    • B41M2205/38—Intermediate layers; Layers between substrate and imaging layer
    • 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
    • B41M2205/40—Cover layers; Layers separated from substrate by imaging layer; Protective layers; Layers applied before imaging
    • 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

Definitions

  • Such a method is for example from the EP 1 684 989 B1 in particular characterized in that, within a machine pass, the heat-sensitive recording layer is spread over and the protective layer covering this heat-sensitive recording layer is printed.
  • the combination of printing and coating processes for producing a heat-sensitive recording material is decisive for the named document.
  • no further suggestions for the formation of the heat-sensitive recording layer and for the formation of the protective layer covering this heat-sensitive recording layer can be taken from the cited document.
  • Heat-sensitive recording materials have been known in their general form for many years and are enjoying ever-increasing popularity, which is due, among other things, to their use being associated, in particular, with tickets, for the ticket issuer with great advantages. Because the color-forming components are stuck in the recording material itself in the heat-sensitive recording method, the toner and color-cartridge-free thermal printers, which are no longer required to be regularly controlled by anyone, can be set in large numbers. Thus, this innovative technology has prevailed in particular in public passenger transport, buses and trains as well as in air traffic, stadium and museum funds and parking ticket machines nationwide. But even with the important application of parking tickets, there are still many problems which to this day could not be solved convincingly in their entirety.
  • the document EP-A1-2 112 000 describes a heat-sensitive recording material.
  • This recording material contains (a) a UV-crosslinked acrylate protective layer, (b) a heat-sensitive recording layer containing an isocyanate component, an imino component, and a dye precursor-color acceptor leuco dye system, (c) a support, and (d) a backing layer.
  • Another problem is the risk of blocking ticket rolls after water contact: If, for example, in rainy weather roles or zigzag stacks filled with the still issued Parktickets of heat-sensitive recording material in the ticket machine, it may happen that these roles or zigzag stacks wet by raindrops and then this wetness penetrates into the ticket rolls or into the zigzag stacks. Due to a possible dissolution of the constituents, in particular in the outer layers of the parking tickets, gluing of the individual layers within a roll or within the zigzag stacks can then occur with the parking tickets still to be issued, which leads to complete failure of the affected parking ticket machine. Dust generation is another problem in the processing of thermosensitive recording material into zig-zag stacks. In particular, heat-sensitive recording materials with protective layers which have a high water resistance are often very brittle and thus it may happen that the protective layers chip off at the cut and folded edges. Dust and production disruption are the result.
  • the proposed method initially provides for the preparation of a first coating composition, with the use of container scales for the precise feeding and metering of bulk components and liquid components to a particular extent.
  • the first coating composition intended to form the heat-sensitive recording layer comprises, as a color acceptor, at least 85% by weight, based on the total content of color acceptors in the first coating composition, of 4,4'-dihydroxydiphenylsulfone.
  • 4,4'-Dihydroxydiphenylsulfone is also commonly referred to as 4,4'-sulfonyldiphenol and is also known under the tradename 4,4 Bisphenol S.
  • 4,4'-Dihydroxydiphenylsulfone has the chemical formula C12H1004S and can be represented as the following formula (1):
  • 4,4'-Dihydroxydiphenylsulfon as a color acceptor is for example from the EP 2 279 877 A1 which also discloses the combination of 4,4'-dihydroxydiphenyl sulfone with a sensitizer such as methylol stearamide, stearic acid amide and dimethyl terephthalate.
  • a sensitizer such as methylol stearamide, stearic acid amide and dimethyl terephthalate.
  • the above color acceptors are incorporated in this first coating composition to a maximum of 8.5% by weight, based on the total amount of color acceptors in the first coating composition, the remainder being 4,4'- dihydroxydiphenylsulfone.
  • 4,4'-dihydroxydiphenylsulfone is the only color acceptor in the first coating composition is considered to be most preferred.
  • the first coating composition has more than one color former, each selected from the color formers listed in the above paragraph.
  • the method according to the invention for the preparation of a heat-sensitive recording material may contain one or more of the following compounds which absorb in the near infrared range within the first coating composition, in addition to or as an alternative to the substances mentioned in the previous paragraph as color formers:
  • the first coating composition contains at least one sensitiser selected from the list comprising methylolstearamide, stearic acid amide and dimethyl terephthalate, which is preferably used alone, that is, not in combination with the other two sensitisers from the above list, for increasing the thermal responsiveness Such a combination in the context of the present invention should be excluded.
  • dimethyl terephthalate is considered to be very particularly preferred.
  • the above-mentioned sensitizers may be used in the first coating composition each optionally in combination with the following products: benzyl p-benzyloxybenzoate, p-benzylbiphenyl, 1,2-di (phenoxy) ethane, 1,2-di (m -methylphenoxy) ethane, m-terphenyl, dibenzyl oxalate, benzyl naphthyl ether and diphenyl sulfone.
  • a ratio based on the weight% within the first coating composition Farbakzeptorg etician Sensibilisatorg etician and in particular 4,4'-dihydroxydiphenylsulfone: sensitizer selected from the list consisting of methylolstearamide, stearic acid amide and in particular dimethyl terephthalate preferably in a range from 1: 0.5 to 1: 2, and most preferably in a range of 1: 0.8 to 1: 1.4.
  • Suitable binders for incorporation into the first coating composition 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 copolymers or ethylene-maleic anhydride copolymers, which binders may 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 first coating composition.
  • water-soluble binders such as starch, hydroxyethyl
  • polyvinyl alcohol, ethylene-vinyl alcohol copolymers or polyvinyl alcohol in combination with ethylene-vinyl alcohol copolymers are particularly preferred binders which together in a range from 10 to 20% by weight, based on the total weight of the first coating composition. incorporated into the first coating composition.
  • the first coating composition for forming the thermosensitive recording layer may further contain slip 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.
  • slip 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 first coating composition are, if appropriate, for example pigments, preferably inorganic pigments such as, for example, aluminum (hydr) oxide, silica and calcium carbonate, in which case in particular calcium carbonate, which should preferably be incorporated in an amount of 0 to 28% by weight in the first coating composition , as preferred.
  • the proposed method further provides for preparing a second coating composition.
  • Such a coating composition is for example from EP 1 663 662 B1 known.
  • this document does not give any suggestions on a method which comprises as essential aspects a use of this coating composition on the one hand as a protective layer above a 4,4'-dihydroxydiphenylsulfone-containing heat-sensitive recording layer and on the other hand as a backside coating.
  • the proposed method further provides, in a preferred embodiment, for preparing a third coating composition, the third coating composition particularly preferably comprising organic pigments and inorganic pigments, the inorganic pigments selected individually or in combination with one another from the list comprising: calcined kaolin, silica, Bentonite, calcium carbonate and alumina and here especially boehmite.
  • the ratio between organic and inorganic pigment is a compromise of the effects caused by the two types of pigments, which is particularly advantageously solved when the pigment mixture to 5 to 30 wt .-% or better to 8 to 20 wt .-% of organic and 95 to 70 wt .-% or better to 92 to 80 wt .-% of inorganic Pigment exists.
  • Pigment mixtures of different organic pigments are conceivable.
  • the third coating composition contains at least one binder, preferably based on a synthetic polymer, wherein, for example, styrene-butadiene latex gives particularly good results.
  • a synthetic binder with the admixture of at least one natural polymer, more preferably starch, is a particularly suitable embodiment.
  • a binder to pigment ratio within the third coating composition is between 3: 7 and 1: 9, in each case based on wt .-%, a particularly suitable embodiment is present.
  • two machines can be used to process the above method steps (i) to (xi), wherein the method steps (i) to (iv) plus a downstream reeling of the substrate by the first machine designed as a paper or coating machine, while the method steps (v) to (xi) plus an upstream unwinding of the substrate with applied third coating composition by the second machine designed as a coating machine with integrated printing units are performed.
  • both machines of course, the implementation of further process steps is conceivable.
  • the second coating composition is preferably each provided with an application layer and with a basis weight in a range from 0.5 to 4.5 g / m 2 applied.
  • the basis weight of the total protective layer and / or the back coating is preferably in a range of 1.2 to 6 g / m 2 and especially between 1.5 and 4 g / m 2 .
  • the first coating composition for forming the thermosensitive recording layer within the process step (v) is applied by means of a coating process selected from the list comprising: a roller blade coater, knife coater, curtain coater or air brush.
  • the first coating composition used to form the recording layer is preferably aqueous.
  • the subsequent drying of the coating material within the process step (vi) is usually done by a method in which heat is supplied, as is done by hot-air floating dryer or contact dryer. Proven is also a combination of the listed dry processes.
  • the basis weight of the heat-sensitive recording layer is preferably from 2 to 6 g / m 2, and more preferably from 2.2 to 4.8 g / m 2 .
  • the third coating composition for forming the pigmented intermediate layer is applied to the front side of the substrate within the optional process step (ii) by a leveling coating process selected from the list comprising: roller coater, doctor blade or doctor blade coater.
  • the intermediate layer can positively contribute to leveling of the substrate surface, thus reducing the amount of the applied mass of the first coating composition for forming the heat-sensitive recording layer.
  • the subsequent drying of the coating material within the optional process step (iii) is usually carried out by a method in which heat is supplied, as is done by hot-air floatation dryer or contact dryer. Proven is also a combination of the listed dry processes.
  • a preferred range between 5 and 20 g / m 2 and even better between 7 and 12 g / m 2 has proven.
  • the proposed method for producing a thermosensitive recording material in preferred variants within the optional method step (iv) comprises smoothing the substrate with the applied and dried third coating composition and, within the optional method step (vii), smoothing the substrate with the optionally applied and dried third coating composition and the applied and dried first coating composition.
  • the aim of such smoothing steps which can be done in both cases by a calender or a calender, is to create a flattened, possibly glossy surface, which appear on the printed protective layer and / or on the printed back coating applied color images vivid and vibrant. Further, a smoother surface of the thermosensitive recording layer by improved contact with the thermal head promotes heat transfer and thus the sensitivity of this thermosensitive recording layer.
  • 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, for example, polyolefin and polyolefin-coated papers as a substrate are possible to the same extent, without such an embodiment having an exclusive character.
  • the present invention in addition to the disclosed methods - in all its various and mutually complementary embodiments and variants - for producing a heat-sensitive recording material, also claims the use of a heat-sensitive recording material produced by one of these methods as a parking ticket and / or a punitive ticket.
  • Numerous tests and series of heat-sensitive recording materials made by one of the methods disclosed herein have been able to demonstrate their superior effect in their use as a parking and / or toll ticket.
  • the above-described problems of a strong background graying due to direct sunlight as well as blocking and sticking due to the action of moisture could be regarded as convincingly solved by the recording materials, which were prepared by one of the methods disclosed herein.
  • the method in all its different and mutually complementary embodiments and variants, ensures economically justifiable manufacturing costs, to which in particular the flexibly applicable combination of coating ink applications and two-sided printing jobs together with the perfectly matched components within the first, second and optionally third coating compositions contribute.
  • the surface mass,% by weight (% by weight) and parts by weight (parts by weight) given in the specification and claims refer to the "atro" weight, respectively. absolutely dry parts by weight.
  • the relevant figures are calculated from the "lutro" weight, i. air-dry parts by weight, minus the proportion by weight of water around and inside the pigments in their form of delivery.
  • 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 still dried inside the paper machine by means of radiant heaters and in contact with hot rolls - process step (iii), smoothed in a Mehrwalzenglätttechnik - process step (iv) - and then rolled up as Halbfertigpapiertambour.
  • the heat-sensitive recording layer is dried as process step (vi) by means of a hot-air float dryer and in contact with hot rolls and smoothed in a multi-roll calender - process step (vii).
  • the prepared second coating composition for forming the heat-sensitive recording layer covering protective layer is first as process step (viii) and directly following process step (x) the same coating composition for forming the on the back of the substrate arranged coating each printed with a basis weight of 2.0 g / m 2 .
  • the second coating composition used in both cases was prepared as follows:
  • thermosensitive recording material thus completed is rolled up and ready for its use as a parking and / or toll ticket.

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

Claims (15)

  1. Procédé de fabrication d'un matériau d'enregistrement thermosensible, comportant
    un substrat, présentant un recto et un verso opposé au recto,
    une couche d'enregistrement thermosensible, contenant des chromogènes et des accepteurs de couleur disposés sur le recto du substrat,
    une couche de protection recouvrant cette couche d'enregistrement thermosensible,
    un revêtement disposé sur le verso du substrat,
    le procédé comprenant au moins les étapes suivantes de :
    préparation d'une première composition de revêtement, cette première composition de revêtement comprenant au moins :
    - en tant qu'accepteur de couleur, au moins 85 % en poids, par rapport à la quantité totale des accepteurs de couleur dans la première composition de revêtement, de 4,4'-dihydroxydiphénylsulfone,
    - au moins un sensibilisateur, choisi parmi la liste comprenant le méthylolstéaramide, le stéaramide et le téréphtalate de diméthyle,
    préparation d'une deuxième composition de revêtement, cette deuxième composition de revêtement comprenant au moins :
    - de 65 à 95 % en poids d'un ou plusieurs (méth)acrylates choisis parmi le groupe comprenant les polyéther(méth)acrylates, les époxy(méth)acrylates, ainsi que le (méth)acrylate d'uréthanne,
    - de 0 à 20 % en poids de photoamorceurs, et
    - de 0,5 à 20 % en poids de cire,
    les indications de pourcentage en poids allant de 65,5 à 100 % en poids s'ajoutent à la deuxième composition de revêtement,
    amenée continue d'un substrat en forme de feuille continue,
    application de la première composition de revêtement préparée pour former la couche d'enregistrement thermosensible disposée au recto du substrat,
    séchage de la première composition de revêtement, application de la deuxième composition de revêtement préparée pour former la couche de protection recouvrant la couche d'enregistrement thermosensible,
    réticulation, au moyen d'un rayonnement de haute énergie, de la couche de protection recouvrant la couche d'enregistrement thermosensible,
    application de la deuxième composition de revêtement préparée pour former le revêtement disposé au verso du substrat,
    réticulation, au moyen d'un rayonnement de haute énergie, du revêtement disposé au verso du substrat.
  2. Procédé de fabrication d'un matériau d'enregistrement thermosensible selon la revendication 1, caractérisé en ce que la 4,4'-dihydroxydiphénylsulfone est l'accepteur de couleur unique se trouvant dans la première composition de revêtement.
  3. Procédé de fabrication d'un matériau d'enregistrement thermosensible selon l'une quelconque des revendications 1 et 2, caractérisé en ce que les chromogènes de la première composition de revêtement sont choisis parmi 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.
  4. Procédé de fabrication d'un matériau d'enregistrement thermosensible selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le rapport 4,4'-dihydroxydiphénylsulfone/sensibilisateur, rapporté au pourcentage en poids à l'intérieur de la première composition de revêtement, se situe dans une plage allant de 1/0,5 à 1/2.
  5. Procédé de fabrication d'un matériau d'enregistrement thermosensible selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le procédé comprend les au moins trois étapes supplémentaires suivantes de :
    préparation d'une troisième composition de revêtement, la troisième composition de revêtement comprenant des pigments organiques et des pigments inorganiques, les pigments organiques étant choisis parmi la liste comprenant : le kaolin calciné, l'oxyde de silicium, la bentonite, le carbonate de calcium, ainsi que l'oxyde d'aluminium et ici, en particulier, la boehmite,
    application de la troisième composition de revêtement préparée pour former la couche intermédiaire pigmentée sur le recto du substrat,
    séchage de la troisième composition de revêtement,
    ces au moins trois étapes supplémentaires devant être insérées avant l'étape "application de la première composition de revêtement préparée pour former la couche d'enregistrement thermosensible disposée au recto du substrat.
  6. Procédé de fabrication d'un matériau d'enregistrement thermosensible selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la deuxième composition de revêtement est appliquée par impression analogique pour former la couche de protection recouvrant la couche d'enregistrement thermosensible.
  7. Procédé de fabrication d'un matériau d'enregistrement thermosensible selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la deuxième composition de revêtement est appliquée par impression analogique pour former le revêtement disposé au verso du substrat.
  8. Procédé de fabrication d'un matériau d'enregistrement thermosensible selon la revendication 8, caractérisé en ce que l'application de la deuxième composition de revêtement
    (a.) pour former la couche de protection recouvrant la couche d'enregistrement thermosensible et
    (b.) pour former le revêtement disposé sur le verso du substrat
    s'effectue dans le cadre exact d'un passage en machine.
  9. Procédé de fabrication d'un matériau d'enregistrement thermosensible selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le rayonnement de haute énergie destiné à la réticulation de la deuxième composition de revêtement
    (a.) pour former la couche de protection recouvrant la couche d'enregistrement thermosensible et/ou
    (b.) pour former le revêtement disposé au verso du substrat, est un rayonnement UV.
  10. Procédé de fabrication d'un matériau d'enregistrement thermosensible selon l'une quelconque des revendications 1 à 9, caractérisé en ce que la deuxième composition de revêtement
    (a.) pour former la couche de protection recouvrant la couche d'enregistrement thermosensible et/ou
    (b.) pour former le revêtement disposé au verso du substrat est appliqué, respectivement, en au moins deux couches disposées l'une au-dessus de l'autre.
  11. Procédé de fabrication d'un matériau d'enregistrement thermosensible selon l'une quelconque des revendications 1 à 10, caractérisé en ce que la première composition de revêtement pour former la couche d'enregistrement thermosensible est appliquée au moyen d'un procédé d'enduction choisi parmi la liste comprenant : une enduiseuse à racle tournante, une enduiseuse à lame, une enduiseuse à rideau ou une lame d'air.
  12. Procédé de fabrication d'un matériau d'enregistrement thermosensible selon l'une quelconque des revendications 5 à 11, caractérisé en ce que la troisième composition de revêtement pour former la couche intermédiaire pigmentaire est appliquée au recto du substrat au moyen d'un procédé d'enduction choisi parmi la liste comprenant : une enduiseuse au rouleau, une enduiseuse à lame ou une enduiseuse à racle (tournante).
  13. Procédé de fabrication d'un matériau d'enregistrement thermosensible selon l'une quelconque des revendications 1 à 12, caractérisé en ce que le séchage
    (a.) de la première composition de revêtement pour former la couche d'enregistrement thermosensible et/ou
    (b.) de la troisième composition de revêtement pour former la couche intermédiaire pigmentée,
    est réalisé par amenée de chaleur.
  14. Procédé de fabrication d'un matériau d'enregistrement thermosensible selon l'une quelconque des revendications 1 à 13, caractérisé en ce que le substrat est un papier.
  15. Utilisation d'un matériau d'enregistrement thermosensible fabriqué selon un procédé quelconque, tel que revendiqué dans l'une quelconque des revendications 1 à 14 en tant que ticket de stationnement ou avis de procès-verbal.
EP20110154121 2011-02-11 2011-02-11 Procédé de fabrication d'un matériel d'enregistrement sensible à la chaleur Not-in-force EP2487043B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP20110154121 EP2487043B1 (fr) 2011-02-11 2011-02-11 Procédé de fabrication d'un matériel d'enregistrement sensible à la chaleur
DK11157084T DK2487044T3 (da) 2011-02-11 2011-03-04 Fremgangsmåde til fremstilling af et varmefølsomt registreringsmateriale
ES11157084T ES2443162T3 (es) 2011-02-11 2011-03-04 Procedimiento para la producción de un material de registro termosensible
EP20110157084 EP2487044B1 (fr) 2011-02-11 2011-03-04 Procédé de fabrication d'un matériel d'enregistrement sensible à la chaleur
PCT/EP2012/052154 WO2012107507A1 (fr) 2011-02-11 2012-02-08 Procédé pour produire un matériau d'enregistrement thermosensible
US13/984,869 US9079444B2 (en) 2011-02-11 2012-02-08 Method for producing a heat-sensitive recording material
PCT/EP2012/052151 WO2012107504A1 (fr) 2011-02-11 2012-02-08 Procédé pour produire un matériau d'enregistrement thermosensible

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20110154121 EP2487043B1 (fr) 2011-02-11 2011-02-11 Procédé de fabrication d'un matériel d'enregistrement sensible à la chaleur

Publications (2)

Publication Number Publication Date
EP2487043A1 EP2487043A1 (fr) 2012-08-15
EP2487043B1 true EP2487043B1 (fr) 2013-10-09

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EP20110157084 Not-in-force EP2487044B1 (fr) 2011-02-11 2011-03-04 Procédé de fabrication d'un matériel d'enregistrement sensible à la chaleur

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US (1) US9079444B2 (fr)
EP (2) EP2487043B1 (fr)
DK (1) DK2487044T3 (fr)
ES (1) ES2443162T3 (fr)
WO (2) WO2012107507A1 (fr)

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Publication number Priority date Publication date Assignee Title
JP6649618B2 (ja) * 2016-03-28 2020-02-19 王子ホールディングス株式会社 感熱記録ライナーレスラベル及びその製造方法
GB201918274D0 (en) 2019-12-12 2020-01-29 Datalase Ltd A composition

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485123A (en) 1982-02-12 1984-11-27 Union Carbide Corporation Process for producing textured coatings
DE3526016A1 (de) 1985-07-20 1987-01-22 Huels Chemische Werke Ag Lagerstabile, strahlenhaertbare, nco-freie, waessrige emulsionen
DE69526078T2 (de) * 1994-06-06 2002-08-14 Nippon Soda Co. Ltd., Tokio/Tokyo Diphenylsulfonderivate und daraus hergestelltes aufzeichnungsmaterial
DE10341168A1 (de) 2003-09-06 2005-04-07 Mitsubishi Hitec Paper Flensburg Gmbh Wärmeempfindliches Aufzeichnungsmaterial und seine Verwendung
EP1684989B1 (fr) 2003-11-12 2008-10-29 Mitsubishi Hitec Paper Flensburg GmbH Procede de fabrication d'un materiau d'enregistrement thermosensible comportant une couche de protection et machine de couchage destinee a la fabrication dudit materiau
CN100469591C (zh) * 2004-09-14 2009-03-18 株式会社理光 可逆型热敏记录介质、图像处理方法以及图像处理装置
US8143191B2 (en) 2008-03-18 2012-03-27 Ricoh Company, Ltd. Thermosensitive recording material
EP2112000B8 (fr) * 2008-03-27 2011-03-30 Mitsubishi HiTec Paper Europe GmbH Matériel d'enregistrement sensible à la chaleur
EP2279877B1 (fr) 2009-07-28 2012-03-28 Mitsubishi HiTec Paper Europe GmbH Matériau pour l'enregistrement par la chaleur

Also Published As

Publication number Publication date
WO2012107507A1 (fr) 2012-08-16
US20140057783A1 (en) 2014-02-27
DK2487044T3 (da) 2014-01-13
EP2487044B1 (fr) 2013-10-23
EP2487043A1 (fr) 2012-08-15
US9079444B2 (en) 2015-07-14
EP2487044A1 (fr) 2012-08-15
ES2443162T3 (es) 2014-02-18
WO2012107504A1 (fr) 2012-08-16

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