EP0570899A1 - Bildempfangelement für Tinte in thermischer Übertragung - Google Patents

Bildempfangelement für Tinte in thermischer Übertragung Download PDF

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Publication number
EP0570899A1
EP0570899A1 EP93108052A EP93108052A EP0570899A1 EP 0570899 A1 EP0570899 A1 EP 0570899A1 EP 93108052 A EP93108052 A EP 93108052A EP 93108052 A EP93108052 A EP 93108052A EP 0570899 A1 EP0570899 A1 EP 0570899A1
Authority
EP
European Patent Office
Prior art keywords
image receptor
release material
film
image
base member
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.)
Granted
Application number
EP93108052A
Other languages
English (en)
French (fr)
Other versions
EP0570899B1 (de
Inventor
Hideki c/o Technical Center Suzuki
Yasuo c/o Technical Center Tago
Akio c/o Technical Center Shimomine
Tomoaki c/o Technical Center Yamanaka
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.)
Fujicopian Co Ltd
Original Assignee
Fuji Kagakushi Kogyo Co Ltd
Fujicopian 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=14968748&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0570899(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fuji Kagakushi Kogyo Co Ltd, Fujicopian Co Ltd filed Critical Fuji Kagakushi Kogyo Co Ltd
Publication of EP0570899A1 publication Critical patent/EP0570899A1/de
Application granted granted Critical
Publication of EP0570899B1 publication Critical patent/EP0570899B1/de
Anticipated expiration legal-status Critical
Revoked 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
    • B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
    • B41M5/42—Intermediate, backcoat, or covering layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • 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
    • B41M2205/02—Dye diffusion thermal transfer printing (D2T2)
    • 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
    • B41M2205/06—Printing methods or features related to printing methods; Location or type of the layers relating to melt (thermal) mass transfer

Definitions

  • the present invention relates to an image receptor for thermal transfer ink and, more particularly, to an image receptor for thermal transfer ink which is advantageously used especially with a so-called "tape printer”.
  • the above-noted tape printer is provided with simple word processing function and printing function, and adapted to form printed images while rewinding an image receptor in the form of a tape which is wound into a pancake-like body. A portion of the image receptor in which the printed images are formed is cut off and the cut piece is stuck onto an object. With the tape printer it is possible to form a heading-printed label, name-printed label and the like with ease.
  • a thermal transfer printer is usually employed in a printer part of the tape printer because it can be easily scaled down. Therefore, an ink sheet to be used therein is a thermal transfer ink sheet.
  • an image receptor in the form of tape (hereinafter referred simply to as "image receptor") for use with such a tape printer
  • an image receptor of the type which includes a main body comprising: a foundation film, such as polyester film, provided on one side thereof with an image-receiving layer such as made of a polyester resin which allows a thermal transfer ink to exhibit a good fixing property, and on the other side thereof with a pressure-sensitive adhesive layer; and a release material stacked on the pressure-sensitive adhesive layer.
  • release material in the above conventional image receptor generally used is one of the type wherein a release layer composed of a silicone resin is provided on one side of glassine paper.
  • the image receptor including such a release material of which foundation is of glassine paper suffers a phenomenon such that the release material is partially lifted from the image receptor body.
  • lift the phenomenon is referred to as "lift”. If the image receptor with such a lift is used in the tape printer, there is likely to encounter such inconveniences that the image receptor does not smoothly run and, in an extreme case, the image receptor carrying printed images will not come out of the tape printer. Description is to be made on these phenomena with reference to the drawings.
  • Fig. 1 is an explanatory view for illustrating a lift produced in an image receptor.
  • Numeral 10 denotes an image receptor wherein a release material 12 is partially lifted from an image receptor body 11 and, hence, a lift 13 is produced.
  • the height of the lift 13 (height H from the general surface of the release material, hereinafter the same) reaches 1 to 2 mm.
  • ten or more of such a lift are produced per 1 m along the length of the image receptor in the form of tape.
  • Fig. 2 is an explanatory view for illustrating the travelling state of the image receptor in the tape printer, and wherein numeral 20 denotes a driving roller, and numeral 21 a thermal head.
  • the image receptor 10 and a thermal transfer ink sheet 22, which are each wound into a pancake-like shape, are rewound and fed to between the driving roller 20 and the thermal head 21.
  • the image receptor 10 is separated from the ink sheet 22 and ejected to exterior from a receptor outlet 24 located on a casing 23 of the tape printer.
  • the image receptor 10 is fed by the rotation of the driving roller 20 as shown in Fig. 2 and is, hence, imposed with a substantial pressure thereby. This may cause small lifts to move and to join together, thereby forming a large lift.
  • Such a phenomenon is presumed to be caused because the peel strength of the release material is set to a low level (for example, about 5 g/20 mm) so as to facilitate the peeling of the release material from the image receptor body, and the peel strength thereof decreases further at a low temperature whereby small lifts are moved by the pressure of the driving roller and joined together to form a large lift.
  • an image receptor for a thermal transfer ink comprising a foundation film, an image-receiving layer provided on one side of the foundation film, a pressure-sensitive adhesive layer provided on the other side of the foundation film, and a release material stuck on the surface of the pressure-sensitive adhesive layer, said release material including a paper having a density of 1.0 g/cm3 or lower as a base member.
  • an image receptor for a thermal transfer ink comprising a foundation film, an image-receiving layer provided on one side of the foundation film, a pressure-sensitive adhesive layer provided on the other side of the foundation film, and a release material stuck on the surface of the pressure-sensitive adhesive layer, said the release material including a polyester film or a polyolefin film as a base member.
  • the release material includes a paper having a density of 1.0 g/cm3 or lower as a base member.
  • the image receptor of which release material includes the base member composed of a paper of such a low density is essentially free from a lift even if stored under a high-temperature and high-humidity condition. This is conceivably because such a low-density paper is not so densely stuffed with fibers and, hence, absorbs an expansion of itself due to moisture absorption.
  • glassine paper is of a high density as high as 1.1 to 1.2 g/cm3 and is, hence, presumed to be incapable of absorbing an expansion of itself, which causes a lift of a release material using glassine paper.
  • the release material includes a polyester film or a polyolefin film as a base member and is completely free from a lift.
  • a paper having a density of 1.0 g/cm3 or lower is used as the base member of the release material. If the density is too low, a satisfactory stiffness cannot be expected, which results in poor operability in exfoliating the release material from the image receptor body. It is, therefore, preferable that the paper has a density of at least 0.7 g/cm3. Examples of such a paper include woodfree paper, kraft paper, simili paper, paper for copying, and india paper. Synthetic paper is also utilizable.
  • the base member is preferably 40 to 90 ⁇ m thick. If the thickess of the base member is larger than that range, the winding length becomes undesirably short, whereas if it is smaller than the range, a satisfactory stiffness cannot be expected, degrading the operability for exfoliation.
  • the constitution of the release material except that the paper as specified above is used as the base member thereof.
  • a release material comprising the aforesaid base member of paper, a laminated layer formed on the surface of the base member and composed of at least one resin selected from the group consisting of polyolefin resins, polystyrene resins, polyester resins and polyurethane resins, and a release layer provided on the laminated layer (hereinafter referred to as "first mode").
  • the presence of the laminated layer of resin will suppress an expansion of the base member of paper and, hence, prevent the production of lifts almost completely.
  • polystyrene resins for the laminated layer examples include polyethylene resins, polypropylene resins, ethylene-vinyl acetate copolymers, ethylene-ethyl acrylate copolymers, ethylene-methyl methacrylate copolymers, ethylene-acrylic acid copolymers, and ethylene-vinyl alcohol copolymers.
  • the laminated layer of resin is preferably 5 to 25 ⁇ m thick. With the laminated layer of a thickness smaller than that range, it is difficult to sufficiently suppress an expansion of the base member of paper. With the laminated layer of a thickness larger than the range, on the other hand, the winding length of the image receptor is shortened undesirably.
  • the lamination method any known method can be employed, but usually employed is an extrusion laminating method.
  • the releasing agent for the release layer is not particularly limited. Although there can be used various releasing agents such as silicone resin type, olefin resin type, long-chain-alkyl-containing polymer type and fluorine-containing resin type, usually silicone resin type releasing agents are preferably used.
  • the release layer is usually about 0.1 to 2 ⁇ m thick.
  • an alternative release material comprising the aforesaid base member of paper, a resin coat layer formed on the surface of the base member, and a release layer provided on the resin coat layer (hereinafter referred to as "second mode").
  • the presence of the resin coat layer can suppress an expansion of the base member of paper.
  • the resin for use in the resin coat layer there can be used, without particular limitations, nonhygroscopic resins or resins which will not expand even when they absorb moisture.
  • resins include polyacrylic alkyl esters, polymethacrylic alkyl esters, polyacrylamide, polystyrene, polyvinyl butyral, polyvinyl acetate, polyvinyl chloride, polyvinylidene chloride, polyurethanes, polyesters, carboxymethyl cellulose, urea resins, and melamine resins. These resins may be used either alone or as a mixture.
  • the resin coat layer is suitably 0.5 to 25 ⁇ m thick. If the thickness of the resin coat layer is smaller than that range, an expansion of the base member of paper cannot be suppressed sufficiently, while if it exceeds the range, the winding length of the image receptor becomes undesirably short.
  • the release material for use in the second aspect of the present invention is that which includes a polyester film or a polyolefin film as a base member.
  • the polyester film is of polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate or the like.
  • the polyolefin film is of polyethylene, polypropylene or the like. These films may be unstretched or uni- or biaxially stretched.
  • the film base member is suitably about 15 to about 100 ⁇ m thick. If the thickness of the film base member is smaller than that range, the operability for exfoliation is degraded, while on the other hand if it exceeds the range, the winding length becomes undesirably short.
  • the release layer is directly formed on one side of the film base member.
  • the release layer for use in the second aspect there can be used a release layer of the same type as that in the first aspect.
  • the release material is preferably 50 to 100 ⁇ m thick so as to assure a desired winding length and a high operability for exfoliation.
  • the release material in the second aspect is more preferably 15 to 100 ⁇ m thick.
  • the peel strength of the release material from the image receptor body is preferably about 2 to about 10 g/20 mm (at a peeling rate of 0.15 m/min) so as to assure a good operability for exfoliation.
  • the image receptor body may be of any constitution, provided that it comprises a foundation film, an image-receiving layer composed of a resin of a good fixing property for a thermal transfer ink and formed on one side of the foundation film, and a pressure-sensitive adhesive layer formed on the other side of the foundation film.
  • the foundation film of the image receptor body is, for example, a polyester film such as a polyethylene terephthalate film, in view of its strength and and good adhesiveness with the image-receiving layer.
  • a polyester film such as a polyethylene terephthalate film
  • usable therefor are a polyvinyl chloride film, polycarbonate film, triacetyl cellulose film, polyamide film, polyimide film, aramid film, or a like film.
  • the foundation film is preferably about 20 to about 60 ⁇ m thick, in view of the handling property in sticking to an object or in a like operation.
  • the resin for the image-receiving layer a polyester resin is advantageously used, but another resin is usable if it has a good affinity with the vehicle of the thermal transfer ink.
  • the image-receiving layer may be incorporated with a small amount of an extender such as silica or titanium oxide.
  • the amount of the image-receiving layer to be applied is usually about 0.08 to about 2 g/m2. The amount thereof in excess of that range will degrade the anti-blocking property, whereas the amount thereof smaller than the range results in a printed image with poor fixing property.
  • a color coat layer may be provided as required. Otherwise, the foundation may be colored instead of the provision of such a color coat layer.
  • the pressure-sensitive adhesive layer is formed on the foundation at the side free of the image-receiving layer.
  • the pressure-sensitive adhesive layer can be formed of any conventional pressure-sensitive adhesive such as an acrylic resin-type pressure-sensitive adhesive without particular limitations.
  • the aforesaid release material is stacked on the surface of the pressure-sensitive adhesive layer. Note that it is preferable to select the pressure-sensitive adhesive layer of the image receptor body and the release layer of the release material so that the peel strength therebetween would be within the aforesaid range.
  • any conventional thermal transfer ink sheet can be used to form a printed image on the image receptor without particular limitations.
  • a 70 ⁇ m-thick kraft paper (density: 0.8 g/cm3) was used instead of the above woodfree paper.
  • Each of the image receptors thus fabricated was wound around a core while being slitted to have a width of 18 mm, to form a pancake-like image receptor sample (winding length: 8m).
  • each sample was allowed to stand at 25°C, 50%RH for 24 hrs. (at that time no lift was observed with naked eye in any of the samples), then set in a commercially-available tape printer, and subjected to a printing test in an atmosphere at -5°C so as to examine the running state of the image receptor.
  • Table 1 Lift Printing test at -5°C Height H* Number Ex.1 A 0 No running and printing abnormalities B 0 C 0 Ex.2 A 0 ditto B 0 C 0 Ex.3 A 0 ditto B 0 C 0 Ex.4 A 0 ditto B 0 C 0 Comp. Ex. A 7 Jammed at the outlet, ran obliquely, impossibility of continuous printing B 21 C 12 (* Note) A: H ⁇ 0.5 mm B: 0.5 mm ⁇ H ⁇ 1.0mm C: 1.0 mm ⁇ H ⁇ 1.5mm
  • the image receptor of the present invention is free from lifts and hence, runs smoothly even if stored under a high-temperature and high-humidity condition or subjected to printing in a low-temperature environment.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
EP93108052A 1992-05-20 1993-05-18 Bildempfangselement für Tinte in thermischer Übertragung Revoked EP0570899B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4127790A JPH05318948A (ja) 1992-05-20 1992-05-20 熱転写インク用受像体
JP127790/92 1992-05-20

Publications (2)

Publication Number Publication Date
EP0570899A1 true EP0570899A1 (de) 1993-11-24
EP0570899B1 EP0570899B1 (de) 1996-10-16

Family

ID=14968748

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93108052A Revoked EP0570899B1 (de) 1992-05-20 1993-05-18 Bildempfangselement für Tinte in thermischer Übertragung

Country Status (3)

Country Link
EP (1) EP0570899B1 (de)
JP (1) JPH05318948A (de)
DE (1) DE69305416T2 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0673790A1 (de) * 1993-10-12 1995-09-27 Fujicopian Co., Ltd. Bildaufzeichnungsvorrichtung für streifendrucker
EP0795419A1 (de) * 1996-03-15 1997-09-17 Seiko Epson Corporation Aufzeichnungsmaterial mit Klebeschicht
EP0826509A2 (de) * 1996-08-29 1998-03-04 Victor Company Of Japan, Limited Poröse Farbstoffempfangsschicht für thermischen Farbstoffübertragungsdruck
EP0832756A2 (de) * 1996-09-26 1998-04-01 Eastman Kodak Company Bildempfangslaminat für ein Identitätshärtebasismaterial
WO1999010185A1 (en) * 1997-08-22 1999-03-04 Imperial Chemical Industries Plc Label sheets for thermal transfer imaging
EP1048478A2 (de) * 1999-04-28 2000-11-02 Toyo Boseki Kabushiki Kaisha Aufzeichnungsmaterial

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0370965U (de) * 1989-11-16 1991-07-17

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
No relevant documents disclosed *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0673790A1 (de) * 1993-10-12 1995-09-27 Fujicopian Co., Ltd. Bildaufzeichnungsvorrichtung für streifendrucker
EP0673790A4 (de) * 1993-10-12 1995-11-15 Fuji Kagaku Shikogyo Bildaufzeichnungsvorrichtung für streifendrucker.
EP0795419A1 (de) * 1996-03-15 1997-09-17 Seiko Epson Corporation Aufzeichnungsmaterial mit Klebeschicht
EP0826509A2 (de) * 1996-08-29 1998-03-04 Victor Company Of Japan, Limited Poröse Farbstoffempfangsschicht für thermischen Farbstoffübertragungsdruck
EP0826509A3 (de) * 1996-08-29 1998-08-19 Victor Company Of Japan, Limited Poröse Farbstoffempfangsschicht für thermischen Farbstoffübertragungsdruck
EP0832756A2 (de) * 1996-09-26 1998-04-01 Eastman Kodak Company Bildempfangslaminat für ein Identitätshärtebasismaterial
EP0832756A3 (de) * 1996-09-26 1998-04-29 Eastman Kodak Company Bildempfangslaminat für ein Identitätshärtebasismaterial
WO1999010185A1 (en) * 1997-08-22 1999-03-04 Imperial Chemical Industries Plc Label sheets for thermal transfer imaging
EP1048478A2 (de) * 1999-04-28 2000-11-02 Toyo Boseki Kabushiki Kaisha Aufzeichnungsmaterial
EP1048478A3 (de) * 1999-04-28 2002-01-09 Toyo Boseki Kabushiki Kaisha Aufzeichnungsmaterial
US6605337B1 (en) 1999-04-28 2003-08-12 Toyo Boseki Kabushiki Kaisha Recording material

Also Published As

Publication number Publication date
DE69305416D1 (de) 1996-11-21
DE69305416T2 (de) 1997-02-13
EP0570899B1 (de) 1996-10-16
JPH05318948A (ja) 1993-12-03

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