EP0614766B1 - Beschichtetes Papier für die thermische Übertragung von schmelzbaren Tinten und sein Herstellungsverfahren - Google Patents

Beschichtetes Papier für die thermische Übertragung von schmelzbaren Tinten und sein Herstellungsverfahren Download PDF

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Publication number
EP0614766B1
EP0614766B1 EP93301845A EP93301845A EP0614766B1 EP 0614766 B1 EP0614766 B1 EP 0614766B1 EP 93301845 A EP93301845 A EP 93301845A EP 93301845 A EP93301845 A EP 93301845A EP 0614766 B1 EP0614766 B1 EP 0614766B1
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EP
European Patent Office
Prior art keywords
paper
parts
ink
fusion transfer
transfer paper
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.)
Expired - Lifetime
Application number
EP93301845A
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English (en)
French (fr)
Other versions
EP0614766A1 (de
Inventor
Yoshio Sanyo-Kokusaku Pulp Co. Ltd. Yoshida
Masao Sanyo-Kokusaku Pulp Co. Ltd. Matsukawa
Yoshihiro Sanyo-Kokusaku Pulp Co. Ltd. Kuroyama
Teruhisa Sanyo-Kokusaku Pulp Co. Ltd. Shimada
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.)
Nippon Paper Industries Co Ltd
Original Assignee
Nippon Paper Industries Co Ltd
Jujo Paper Co Ltd
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
Priority claimed from JP32001291A external-priority patent/JP3167764B2/ja
Application filed by Nippon Paper Industries Co Ltd, Jujo Paper Co Ltd filed Critical Nippon Paper Industries Co Ltd
Priority to EP93301845A priority Critical patent/EP0614766B1/de
Priority to DE1993614006 priority patent/DE69314006T2/de
Priority claimed from AU35158/93A external-priority patent/AU661114B2/en
Priority to US08/032,593 priority patent/US5320898A/en
Priority claimed from US08/032,593 external-priority patent/US5320898A/en
Publication of EP0614766A1 publication Critical patent/EP0614766A1/de
Application granted granted Critical
Publication of EP0614766B1 publication Critical patent/EP0614766B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B41M5/382—Contact thermal transfer or sublimation processes
    • B41M5/38207—Contact thermal transfer or sublimation processes characterised by aspects not provided for in groups B41M5/385 - B41M5/395
    • B41M5/38214—Structural details, e.g. multilayer systems

Definitions

  • This invention concerns an ink fusion transfer type of paper, and more specifically, a paper suitable for ink fusion transfer type thermal printers and copiers.
  • EP 529 308 describes an ink jet recording paper which comprises a support having at least one surface coated with a pigment-containing composition wherein the main pigment component is calcium carbonate compounded silica.
  • coated paper having a high smoothness and gloss is generally not used in ink fusion transfer type thermal printers and copiers.
  • the reason for this is that although the paper is extremely smooth so that there is uniform contact with the ink ribbon, which might be expected to give a good ink copy, transfer of ink actually takes place unevenly and image reproduction is poor.
  • Non-uniform transfer of ink is particularly evident in the case of smooth, high gloss art paper for printing and in the case of cast-coated paper. This is due to the fact that, as there are very few surface imperfections or cavities, molten ink does not easily stay on the paper and may be retransferred from the paper back to the ink ribbon.
  • coated paper for printing is designed to be adequate for ordinary printing applications, it is not suitable for ink fusion transfer type thermal printers and copiers.
  • the surface is flattened under high pressure using a Super Calendar or similar device.
  • This paper is not as tough as high grade paper, and since it is very dense, it lacks the feeling of volume.
  • the paper has a low gloss so that there is a very poor balance with the gloss of the image area, and a high image quality comparable to that of ordinary offset printing cannot be obtained.
  • the inventors after performing various studies aimed at resolving the aforesaid problems, found that by incorporating a minimum amount of a synthetic silica having a predetermined specific surface in the paper, good results could be achieved with coated paper manufactured by cast coating.
  • an ink fusion transfer paper having a recording layer comprising at least one recording layer on a support, this paper being characterized in that the uppermost layer of the recording layer consists of at least 100 parts by weight of a pigment comprising a synthetic silica together with at least one organic pigment selected from fine particles of styrene resins, acrylic resins and styrene-acrylic copolymer resins and 10 - 50 parts by weight of a binder, the layer being present on one or both sides of the support at a coverage of 5 - 50 g/m 2 per side in terms of dry solids, 30 - 100 weight percent of the aforesaid pigment consists of a synthetic silica having a specific surface of 20 - 600 m 2 /g, and the 75 degree gloss of the aforesaid uppermost layer of the paper is no less than 50%.
  • the synthetic silica used in this invention is generally referred to as non-crystalline silica, amorphous silica, anhydrous silicic acid, hydrated silicic acid, finely powdered silica or white carbon. Its structure is based on a Si-O net, and it is a silicic acid with no fixed crystalline form. From the viewpoint of transferability of molten ink, the synthetic silica used should have a specific surface of 20 - 600 m 2 /g, and it is particularly preferable that it lies within the range 20 - 300 m 2 /g. If the specific surface is greater than 600 m 2 /g or less than 20 m 2 /g, the reproducibility of half tone images declines although the reason for this is unclear.
  • the synthetic silica used in this invention may be prepared by the wet method, dry method or aerogel method, there being no particular limitation on the method of preparation.
  • the blending proportion of synthetic silica in the coating solution is 30 - 100 parts by weight with respect to 100 parts of pigment. If this blending proportion is less than 30 parts by weight (i.e. less than 30 weight %), transfer of molten ink to the recording layer is unsatisfactory and reproducibility of half tone images is particularly impaired.
  • Fine particles of the organic pigments are preferable from the viewpoint of hardness, elasticity and heat resistance.
  • fine hollow particles of polystyrene or styrene-methylmethacrylate copolymer are used, it is easier to achieve smoothness of the coated surface and the density of the coated layer can be effectively reduced.
  • the binder may be a resin, emulsion, latex or natural high polymer which gives a strong adhesion between the pigment and raw paper, and which does not cause blocking between papers or between the paper and ink ribbon, these materials being used either alone or in conjunction with one another.
  • binders are polyvinyl alcohol or starches such as starch oxide, starch esters, enzyme-modified starch and cationic starch, casein, soy proteins, fiber derivatives such as carboxymethyl cellulose and hydroxyethyl cellulose, styrene-acrylic resins, styrene-butadiene resins, vinyl acetate resins and acrylic resins.
  • the blending proportion of the binder in the coating solution composition is 10 - 50 parts by weight with respect to 100 parts by weight of pigment. If the blending proportion of binder is less than 10 parts by weight, the strength of the coating film declines, and if the proportion is greater than 50 parts by weight, the properties of the coating are adversely affected.
  • dyes or colored pigments may also be added to adjust color
  • fluorescent dyes may be added to improve visual whiteness
  • the coating containing the aforesaid components may easily be prepared by any of the methods known in the art. Also known additives such as dispersing agents, antifoaming agents, release agents, pH regulating agents, lubricants, water retention agents and preservatives may also be added to the aforesaid coating to the extent that they do not impair the advantage of the invention.
  • the coating solution prepared as described hereintofore is coated on a support to be used as a recording layer. If the surface of paper coated with this solution is simply smoothed by a Super Calendar (Tokkai-sho(nonexamined published Japanese patent application) 62-198876), however, the paper is not tough enough, sufficient paper gloss is not obtained, and it is difficult to transport the paper inside the printer or copier due to the paper's lack of toughness. Further, transferability of ink declines so that a good image is not obtained, and the balance between the gloss of the paper in the image and non-image parts is extremely poor.
  • a Super Calendar Tokkai-sho(nonexamined published Japanese patent application) 62-198876
  • the specific surface of the pigment used in paper coatings is generally 2 - 3 g/m 2 and no greater than 10 m 2 /g.
  • the specific surface of the synthetic silica used in this invention is 20 - 600 m 2 /g. This is far greater than that of pigments commonly used, and it leads to the following inferences.
  • the synthetic silica of high specific surface is incorporated in the recording layer without undergoing any modification which thus gives rise to a very large number of cavities. It may be conjectured that this results in better transferability of ink, absorption of molten ink by the cavities so that image surface imperfections are reduced, and reduction of surface scattering reflections so that image gloss is heightened.
  • a single or multiple coating is applied by either an on-line or an off-line coater to one or both sides of the paper such that the dry weight of coating on each side is 5 - 50 g/m 2 , and preferably 8 - 30 g/m 2 . If the amount of coating is less than 5 g/m 2 , the film on the surface of the raw paper is insufficient so that a high paper gloss cannot be obtained, while if it is greater than 50 g/m 2 , the paper density increases so that it becomes less tough, paper transport is problematic and the paper loses its function as a printing and copying paper.
  • the cast coating method used may be any suitable method known in the art such as solidification, rewetting or wetting, providing using a casting drum having a mirror surface.
  • coating technique employed to obtain the recording layer there is no particular limitation on the coating technique employed to obtain the recording layer, it being possible to use any ordinary coating technique such as blade coating, roller coating, air knife coating and bar coating.
  • the solidifying agent used in cast coating by solidification is commonly formic acid, acetic acid, succinic acid, tartaric acid, lactic acid, hydrochloric acid, calcium, zinc, barium, lead, magnesium, cadmium or aluminum sulfates, potassium sulfate, potassium succinate, borax or boric acid, however this invention is not limited to only these substances. Further, the choice of a suitable binder which solidifies well together with these solidifying agents is effective in improving coating speed and the finish of the coated surface.
  • the raw paper may be an acid or neutral high or medium grade paper.
  • the paper be prepared by known methods of raw paper blending, preparation and manufacture (Tokkai Sho 55-47385).
  • the ink fusion transfer paper of this invention has an extremely high gloss, allows good ink transfer and gives an excellent image gloss. It therefore offers a good paper/image gloss balance, a high quality image, and is particularly suitable as a paper for ink fusion transfer type thermal printers and copiers.
  • a coating solution containing 55% dry solids was also prepared from 30 parts synthetic silica (commercial name: Syloid 404, Fuji Davison K.K., specific surface 300 m 2 /g) 40 parts primary grade kaolin (commercial name: Ultrawhite 90, E.M.C. K.K.) and 20 parts calcium carbonate (commercial name: Brilliant 15, Shiraishi K.K.) as pigments together with 10 parts of an organic pigment (commercial name: Boncoat PP-1100, Dai Nippon Kagaku K.K.), 15 parts styrene butadiene latex and 15 parts casein as binders, and 2 parts calcium stearate as a release agent.
  • synthetic silica commercial name: Syloid 404, Fuji Davison K.K., specific surface 300 m 2 /g
  • primary grade kaolin commercial name: Ultrawhite 90, E.M.C. K.K.
  • calcium carbonate commercial name: Brilliant 15, Shiraishi K.K.
  • the coating solution obtained was applied to the aforesaid raw paper by means of a roll coater as in Comparative Example 1, excepting that the rate of application was 40 g/m 2 in terms of dry solids.
  • An ink fusion transfer thermal paper of weighting 109 g/m 2 was thus obtained.
  • a coating solution containing 43% dry solids was also prepared from 80 parts synthetic silica (commercial name: Syloid 404, Fuji Davison K.K., specific surface 300 m 2 /g) and 20 parts primary grade kaolin (commercial name: Ultrawhite 90, E.M.C. K.K.) as pigments, 5 parts styrene butadiene latex and 5 parts casein as binders, and 2 parts calcium stearate as a release agent.
  • synthetic silica commercial name: Syloid 404, Fuji Davison K.K., specific surface 300 m 2 /g
  • primary grade kaolin commercial name: Ultrawhite 90, E.M.C. K.K.
  • the coating solution obtained to the aforesaid raw paper by means of a roll coater at a rate of 10 g/m 2 in terms of dry solids was solidified using a 10% aqueous solution of zinc formate as solidifying agent, and while the coating film was still wet, it was dried in pressure contact with a casting drum having a mirror surface heated to 100°C. An ink fusion transfer thermal paper of weighting 102 g/m 2 was thus obtained.
  • a coating solution containing 42% dry solids was prepared from 80 parts synthetic silica (commercial name: Syloid 404, Fuji Davison K.K., specific surface 300 m 2 /g) and 20 parts primary grade kaolin (commercial name: Ultrawhite 90, manufactured by E.M.C. K.K.) as pigments, 15 parts styrene butadiene latex and 15 parts casein as binders, and 2 parts calcium stearate as a release agent.
  • synthetic silica commercial name: Syloid 404, Fuji Davison K.K., specific surface 300 m 2 /g
  • primary grade kaolin commercial name: Ultrawhite 90, manufactured by E.M.C. K.K.
  • the coating solution obtained was applied to the raw paper of Comparative Example 1 (92 g/m 2 ) by means of a roll coater in the same manner as that of Comparative Example 1, excepting that the application rate was 15 g/m 2 in terms of dry solids.
  • An ink fusion transfer thermal paper of weighting 107 g/m 2 was thus obtained.
  • a coating solution containing 46% dry solids was prepared from 100 parts synthetic silica (commercial name: Mizukasil P-527, Mizusawa Industrial Chemicals K.K., specific surface 30 m 2 /g) as a pigment, 20 parts styrene butadiene latex and 20 parts casein as binders, and 2 parts calcium stearate as a release agent.
  • synthetic silica commercial name: Mizukasil P-527, Mizusawa Industrial Chemicals K.K., specific surface 30 m 2 /g
  • the coating solution obtained was applied to the raw paper of Comparative Example 1 by means of a roll coater such that the application rate was 10 g/m 2 in terms of dry solids in the same manner as that of Comparative Example 1.
  • An ink fusion transfer thermal paper of weighting 102 g/m 2 was thus obtained.
  • the synthetic silica used in Comparative Example 3 was replaced by a pigment having a specific surface of 600 m 2 /g (commercial name: Syloid 600, Fuji Davison K.K.), 23 parts styrene butadiene latex and 20 parts casein added as binders, then 2 parts calcium stearate added as a release agent so as to obtain a coating solution containing 40% solids.
  • the coating solution obtained was applied to the raw paper of Comparative Example 1 by means of a roll coater in the same manner as that of Comparative Example 1 excepting that the application rate was 5 g/m 2 in terms of dry solids.
  • a coating solution containing 54% dry solids was prepared from 30 parts synthetic silica (commercial name: Syloid 404, Fuji Davison K.K., specific surface 300 m 2 /g), 40 parts primary grade kaolin (commercial name: Ultrawhite 90, E.M.C. K.K.) and 30 parts calcium carbonate (commercial name: Brilliant 15, Shiraishi K.K.) as pigments, 15 parts styrene butadiene latex and 10 parts casein as binders, and 2 parts calcium stearate as a release agent.
  • synthetic silica commercial name: Syloid 404, Fuji Davison K.K., specific surface 300 m 2 /g
  • 40 parts primary grade kaolin commercial name: Ultrawhite 90, E.M.C. K.K.
  • calcium carbonate commercial name: Brilliant 15, Shiraishi K.K.
  • the coating solution obtained was applied to the raw paper of Comparative Example 1 (92 g/m 2 ) by means of a roll coater in the same manner as that of Comparative Example 1, excepting that the application rate was 12 g/m 2 in terms of dry solids.
  • An ink fusion transfer thermal paper of weighting 104 g/m 2 was thus obtained.
  • a coating solution containing 58% dry solids was prepared from 5 parts synthetic silica (commercial name: Syloid 404, Fuji Davison K.K., specific surface 300 m 2 /g), 40 parts primary grade kaolin (commercial name: Ultrawhite 90, E.M.C. K.K.) and 55 parts calcium carbonate (commercial name: Brilliant 15, Shiraishi K.K.) as pigments, 15 parts styrene butadiene latex and 10 parts casein as binders, and 2 parts calcium stearate as a release agent.
  • synthetic silica commercial name: Syloid 404, Fuji Davison K.K., specific surface 300 m 2 /g
  • 40 parts primary grade kaolin commercial name: Ultrawhite 90, E.M.C. K.K.
  • calcium carbonate commercial name: Brilliant 15, Shiraishi K.K.
  • This coating solution was applied to the raw paper of Comparative Example 1 by means of a roll coater exactly as in Comparative Example 1, excepting that the rate of application was 15 g/m 2 in terms of dry solids.
  • An ink fusion transfer thermal paper of weighting 107 g/m 2 was thus obtained.
  • a coating solution containing 58% dry solids was prepared from 25 parts synthetic silica (commercial name: Syloid 404, Fuji Davison K.K., specific surface 300 m 2 /g), 40 parts primary grade kaolin (commercial name: Ultrawhite 90, E.M.C. K.K.) and 35 parts calcium carbonate (commercial name: Brilliant 15, Shiraishi K.K.) as pigments, 15 parts styrene butadiene latex and 15 parts casein as binders, and 2 parts calcium stearate as a release agent.
  • synthetic silica commercial name: Syloid 404, Fuji Davison K.K., specific surface 300 m 2 /g
  • 40 parts primary grade kaolin commercial name: Ultrawhite 90, E.M.C. K.K.
  • 35 parts calcium carbonate commercial name: Brilliant 15, Shiraishi K.K.
  • This coating solution was applied to the raw paper of Comparative Example 1 by means of a roll coater exactly as in Comparative Example 1, excepting that the rate of application was 15 g/m 2 in terms of dry solids.
  • An ink fusion transfer thermal paper of weighting 107 g/m 2 was thus obtained.
  • a coating solution was applied to a raw paper by means of a roll coater exactly as in Comparative Example 1, excepting that the application rate was 60 g/m 2 in terms of dry solids.
  • An ink fusion transfer thermal paper of weighting 129 g/m 2 was thus obtained.
  • a coating solution containing 60% dry solids was prepared from 30 parts synthetic silica (commercial name: FK 700, Degusa K.K., specific surface 700 m 2 /g), 40 parts primary grade kaolin (commercial name: Ultrawhite 90, E.M.C. K.K.) and 30 parts calcium carbonate (commercial name: Brilliant 15, Shiraishi K.K.) as pigments, 11 parts styrene butadiene latex and 11 parts casein as binders, and 2 parts calcium stearate as a release agent.
  • synthetic silica commercial name: FK 700, Degusa K.K., specific surface 700 m 2 /g
  • 40 parts primary grade kaolin commercial name: Ultrawhite 90, E.M.C. K.K.
  • calcium carbonate commercial name: Brilliant 15, Shiraishi K.K.
  • This coating solution was applied to the raw paper of Comparative Example 1 by means of a roll coater exactly as in Comparative Example 1, excepting that the rate of application was 11 g/m 2 in terms of dry solids.
  • An ink fusion transfer thermal paper of weighting 103 g/m 2 was thus obtained.
  • a coating solution containing 56% dry solids was prepared from 30 parts synthetic silica (commercial name: Syloid 404, Fuji Davison K.K., specific surface 300 m 2 /g) and 70 parts calcium carbonate (commercial name: Brilliant 15, Shiraishi K.K.) as pigments, and 22 parts styrene butadiene latex and 2 parts starch oxide as binders.
  • This coating solution was applied to the raw paper of Comparative Example 1 by means of a roll coater such that the rate of application was 10 g/m 2 , and dried to give a coated paper of weighting 102 g/m 2 .
  • the coated surface was then smoothed by means of a Super Calendar so as to obtain an ink fusion transfer thermal paper.
  • Coating solution compositions, specific surfaces of synthetic silica and coating amounts used for each of the ink fusion transfer thermal papers in the aforesaid Example and Comparative Examples are summarized in Table 1.
  • the figures in the pigment column represent the ratios synthetic silica/kaolin/calcium carbonate/organic pigment
  • the figure in the binder column represents the ratio latex/casein.
  • Table 2 confirm not only that the ink fusion transfer thermal paper of this invention has a high paper gloss, is tough and of extremely high quality, but also that images recorded on this paper have a high gloss and that the quality of these images is excellent.

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  • Optics & Photonics (AREA)
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Claims (9)

  1. Papier für die Schmelzübertragung von Tinte, das mindestens eine Aufzeichnungsschicht auf einem Träger umfaßt, wobei das Papier dadurch gekennzeichnet ist, daß die oberste Schicht der Aufzeichnungsschicht aus mindestens 100 Gewichtsteilen Pigment, das synthetisches Siliciumdioxid zusammen mit mindestens einem organischen Pigment ausgewählt aus feinen Teilchen aus Styrolharzen, Acrylharzen und Styrol/Acryl-Copolymerharzen umfaßt, und 10 bis 50 Gewichtsteilen Bindemittel besteht, wobei die Schicht auf einer oder beiden Seiten des Trägers mit einer Bedeckung von 5 bis 50 g/m2 pro Seite, im Bezug auf trochene Feststoffe, vorhanden ist, wobei 30 bis 100 Gew.-% des zuvor genannten Pigments aus synthetischem Siliciumdioxid mit einer spezifischen Oberfläche von 20 bis 600 m2/g bestehen und der 75° Glanz der obersten Schicht nicht kleiner 50 % ist.
  2. Papier für die Schmelzübertragung von Tinte nach Anspruch 1, bei dem das organische Pigment aus feinen Hohlteilchen aus Polystyrol oder einem Styrol/Methylmethacrylat-Copolymer besteht.
  3. Papier für die Schmelzübertragung von Tinte nach Anspruch 1 oder 2, bei dem das Bindemittel ausgewählt ist aus Polyvinylalkohol, Stärken, Casein, Sojaprotein, Faserderivaten, Styrol/Acryl-Harzen, Styrol/Butadien-Harzen, Vinylacetatharzen und Acrylharzen.
  4. Papier für die Schmelzübertragung von Tinte nach Anspruch 3, bei dem die Stärken aus Stärkeoxid, Stärkeester, enzym-modifizierter Stärke oder kationischer Stärke bestehen und die Faserderivate aus Carboxymethylcellulose oder Hydroxyethylcellulose bestehen.
  5. Papier für die Schmelzübertragung von Tinte nach einem der vorhergehenden Ansprüche, bei dem in der obersten Schicht außerdem mindestens ein Farbstoff enthalten ist, der ein Fluoreszenzfarbstoff und/oder gefärbtes Pigment sein kann.
  6. Papier für die Schmelzübertragung von Tinte nach einem der vorhergehenden Ansprüche, bei dem die oberste Schicht auf einer oder beiden Seiten des Trägers mit einer Bedeckung von 8 bis 30 g/m2 pro Seite, in Bezug auf trockene Feststoffe, vorhanden ist.
  7. Verfahren zur Herstellung eines Papiers für die Schmelzübertragung von Tinte gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die oberste Schicht durch ein Gießbeschichtungsverfahren hergestellt wird.
  8. Verfahren nach Anspruch 7, bei dem die Gießbeschichtung durch ein Verfestigungsverfahren ausgeführt wird.
  9. Verfahren nach Anspruch 8, bei dem mindestens ein Verfestigungsmittel ausgewählt aus Ameisensäure, Essigsäure, Bernsteinsäure, Weinsäure, Milchsäure, Salzsäure, einem Sulfat von Calcium, Zink, Barium, Blei, Magnesium, Cadmium, Aluminium oder Kalium, Kaliumsuccinat, Borax oder Borsäure in einer Beschichtungslösung für diese Schicht enthalten ist.
EP93301845A 1991-11-07 1993-03-11 Beschichtetes Papier für die thermische Übertragung von schmelzbaren Tinten und sein Herstellungsverfahren Expired - Lifetime EP0614766B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP93301845A EP0614766B1 (de) 1991-11-07 1993-03-11 Beschichtetes Papier für die thermische Übertragung von schmelzbaren Tinten und sein Herstellungsverfahren
DE1993614006 DE69314006T2 (de) 1993-03-11 1993-03-11 Beschichtetes Papier für die thermische Übertragung von schmelzbaren Tinten und sein Herstellungsverfahren
US08/032,593 US5320898A (en) 1993-03-11 1993-03-17 Paper suitable for ink fusion transfer type thermal printer and copiers, and a manufacturing method thereof

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP32001291A JP3167764B2 (ja) 1991-11-07 1991-11-07 熱転写用紙及びその製造方法
EP93301845A EP0614766B1 (de) 1991-11-07 1993-03-11 Beschichtetes Papier für die thermische Übertragung von schmelzbaren Tinten und sein Herstellungsverfahren
AU35158/93A AU661114B2 (en) 1993-03-12 1993-03-12 A paper suitable for ink fusion transfer type thermal printer and copiers, and a manufacturing method thereof
US08/032,593 US5320898A (en) 1993-03-11 1993-03-17 Paper suitable for ink fusion transfer type thermal printer and copiers, and a manufacturing method thereof

Publications (2)

Publication Number Publication Date
EP0614766A1 EP0614766A1 (de) 1994-09-14
EP0614766B1 true EP0614766B1 (de) 1997-09-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7878644B2 (en) 2005-11-16 2011-02-01 Gerber Scientific International, Inc. Light cure of cationic ink on acidic substrates

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2930287B2 (ja) * 1994-11-08 1999-08-03 日本製紙株式会社 記録用紙及びその製造方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH081038B2 (ja) * 1991-08-27 1996-01-10 日本製紙株式会社 インクジェット記録用紙

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI,n 90-379954,Derwent Publications Ltd,London,GB; & JP A 2274587 (SANYO) 08-11-1990. *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7878644B2 (en) 2005-11-16 2011-02-01 Gerber Scientific International, Inc. Light cure of cationic ink on acidic substrates
US7896485B2 (en) 2005-11-16 2011-03-01 Gerber Scientific International, Inc. Light cure of cationic ink on acidic substrates

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