EP0313355A2 - Thermisches Übertragungsmaterial - Google Patents

Thermisches Übertragungsmaterial Download PDF

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Publication number
EP0313355A2
EP0313355A2 EP88309866A EP88309866A EP0313355A2 EP 0313355 A2 EP0313355 A2 EP 0313355A2 EP 88309866 A EP88309866 A EP 88309866A EP 88309866 A EP88309866 A EP 88309866A EP 0313355 A2 EP0313355 A2 EP 0313355A2
Authority
EP
European Patent Office
Prior art keywords
thermal transfer
transfer material
ink
ink layer
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP88309866A
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English (en)
French (fr)
Other versions
EP0313355A3 (de
Inventor
Tetsuo Hasegawa
Naoki Kushida
Yasuyuki Tamura
Koichi Tohma
Hisao Yaegashi
Takayuki Suzuki
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Publication of EP0313355A2 publication Critical patent/EP0313355A2/de
Publication of EP0313355A3 publication Critical patent/EP0313355A3/de
Withdrawn legal-status Critical Current

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    • 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
    • B41M5/38228—Contact thermal transfer or sublimation processes characterised by the use of two or more ink layers

Definitions

  • the present invention relates to a thermal transfer material for use in a recording method of transferring two-color images onto a recording medium such as plain paper.
  • the thermal or heat-sensitive transfer recording method has recently been widely used because it has general advantages of the thermal recording method such that the apparatus employed is light in weight, compact, free of noise, excellent in operability and adapted to easy maintenance, and also has other advantages such that it does not require a color-formation type converted paper but provides recorded images with excellent durability.
  • Japanese Laid-Open Patent Application No. 148591/1981 discloses a two-color type thermal transfer recording element (transfer material) comprising a substrate and two heat-fusible ink layers including a high-melting point ink layer A and a low-melting point ink layer B containing mutually different colorants disposed in this order on the substrate.
  • a low thermal input energy is applied to the element, only the low-melting point layer B is transferred onto plain paper.
  • a high thermal input energy is applied to the element, both the heat-fusible ink layers A and B are transferred onto the plain paper.
  • two-color images can be obtained.
  • Japanese Laid-Open Patent Application No. 64389/1984 discloses a two-color thermal transfer ink sheet which comprises, on a substrate, an ink layer comprising an ink which melt-exudes at a lower temperature and another ink which is melt-peeled at a higher temperature than the melt-exudation temperature.
  • two-color recording is effected by changing the energy applied to a thermal head at two levels so as to change the temperature of the ink layers.
  • a high energy is supplied to the ink layers to provide a high temperature
  • a lower temperature portion is formed at the periphery of a higher temperature portion due to heat diffusion, so that a bordering of a lower temperature color is formed around the higher temperature printed image.
  • a high energy is supplied to a thermal head, it requires a relatively long time until the thermal head is cooled so that a higher-temperature printed image is liable to be accompanied with a trailing of a lower-temperature color.
  • a relatively low melting material is required for providing an ink to be transferred at a lower temperature, whereby they give rise to problems such as ground soiling and low storability of the thermal transfer material.
  • JP-A, KOKAI Japanese Laid-Open Patent Application
  • JP-A, KOKAI Japanese Laid-Open Patent Application
  • this recording method there is employed a thermal transfer material comprising a support and at least a first ink layer and a second ink layer disposed in this order on the support, and after heat is applied to the thermal transfer material, a length of time from the heat application until the separation between the transfer material and recording medium is so controlled that the second ink layer is selectively, or both the first and second ink layers are, transferred to the recording medium.
  • Japanese Laid-Open Patent Application No. 295075/1986 discloses a thermal transfer material wherein at least one of a first ink layer and a second ink layer contains a silicone oil or a fluorine-containing surfactant so as to promote separation between the first and second ink layers.
  • Japanese Laid-Open Patent Application No. 295079/1986 discloses a thermal transfer material wherein a fine powder layer not meltable under application of a heat energy for recording is disposed between a first ink layer and a second ink layer so as to easily cause separation therebetween.
  • the quality of a recorded image is also improved by promoting sharp edge-cutting of a transferred image. It is, however, not always easy to effect such sharp edge-cutting in a transfer operation because it is influenced by various actual recording conditions such as a heat-application condition and a peeling condition among others.
  • our research group has further proposed a thermal transfer material wherein the first ink layer comprises a binder having a glass transition temperature (Tg) of 0 °C or below and 25 to 85 wt. % of a pigment (U.S. Patent No. 106,819).
  • Tg glass transition temperature
  • thermal head of high definition having a large number of heating element dots has also been developed.
  • thermal head of high definition it is preferred to use a thermal transfer material adapted to a high definition recording. If a conventional thermal transfer material is subjected to a recording using the above-mentioned thermal head of high definition, an irregular transfer occurs at the periphery of a heat-applied portion and the edge portion of a printed image becomes uneven or irregular in some cases. Therefore, there has strongly been desired a thermal transfer material capable of providing a clear image even in combination with a thermal head of high definition.
  • a principal object of the present invention is to provide a thermal transfer material by which clear recorded images having a good color separation characteristic can be formed on plain paper by a simple method.
  • ink layers including first and second layers not only to satisfy a specific magnitude relationship between the adhesion (strength) F1 between a support and the first ink layer and the adhesion (strength) F2 between the first and second ink layers at a specific temperature, but also to provide a specific range of peeling strength as an index to the adhesion F2, under specific conditions, in order to enhance the selective transferability of the first and second ink layers in the above-described recording methods of Japanese Laid-Open Patent Application No. 137789/1986.
  • the thermal transfer material according to the present invention is based on the above knowledge and comprises: a support and at least a first ink layer and a second ink layer disposed in the order named on the support, wherein the adhesion strength F1 between the support and the first ink layer and the adhesion strength F2 between the first and second ink layers satisfy the relation of F1 > F2 at 90 °C; the thermal transfer material providing a peeling strength of 1 - 5 g/cm at 90 °C.
  • a thermal transfer material 1 according to the present invention comprises a support 2, and a first ink layer 3 and a second ink layer 4 disposed in this order on the support.
  • the adhesion (strength) F2 between the first ink layer 3 and the second ink layer 4 and the adhesion (strength) F1 between the first ink layer 3 and the support 2 satisfy a relation of F1 > F2 at 90 °C, and that the peeling strength at this temperature is 1 - 5 g/cm.
  • the above-mentioned relation between the adhesions F1 and F2 and the peeling strength value at the above-mentioned tempera­ture may be confirmed in the following manner, for example.
  • a thermal transfer material 1 in a sheet form having a width (d) of about 1 - 2 cm and a length of about 3 cm as shown in Figure 1 is superposed on a recording medium such as plain paper, e.g., one having a Bekk smoothness of 200 sec so that the second ink layer 4 of the transfer material 1 contacts the recording medium, and heat is applied in a pattern (e.g., solid print pattern) to the transfer material 1 from its support 2 side by means of a thermal head as in the ordinary thermal transfer recording method.
  • a recording medium such as plain paper, e.g., one having a Bekk smoothness of 200 sec
  • the transfer material 1 and the plain paper are, as they are without peeling, loaded on a tensile strength tester (Tensilon RTM-100, Toyo Boldwin K.K.) provided with a thermostat chamber capable of temperature control in the range of -60 °C to +270 °C so as to allow peeling at a peeling angle of 180 degrees.
  • a tensile strength tester Tetrachloro Tween 20
  • the transfer material 1 and the plain paper are peeled from each other at a peeling speed of 300 mm/min at an environmental temperature (temperature in the thermostat chamber) of 90 °C, and a load (or force) required for such peeling is measured from the beginning to the end of the peeling.
  • the average value of the thus measured load represented by 1/2 x (maximum value + minimum value) is determined, and the peeling strength used in the present invention may be obtained by dividing the average value by the width (d) of the sample thermal transfer material.
  • the thermal transfer material 1 is superposed on plain paper and the thermal transfer material is bonded to the paper by heat in the same manner as described above.
  • the transfer material 1 and the plain paper are peeled from each other at a peeling speed of 300 mm/min, at an environ­mental temperature of 90 °C, and at a peeling angle of 180 degrees in the same manner as described above, the second ink layer 4 is selectively transferred to the plain paper as a recording medium (confirmation of F1 > F2).
  • the first and second ink layers are caused to contain colorants of different color tones, an image with the color of the second ink is obtained at the environmental temperature of 90 °C.
  • both the first ink layer 3 and the second ink layer 4 are transferred to the recording medium at an environmental temperature (temperature in the thermostat chamber) of 40 °C (i.e., the relationship of F1 ⁇ F2 is satisfied at 40 °C), in order to miniaturize the thermal transfer recording apparatus actually used for recording.
  • the above-mentioned relation of F1 ⁇ F2 may easily be confirmed by the fact that an image with the color of the first ink is obtained on the recording medium at the environmental temperature of 40 °C.
  • the above-mentioned adhesion (F2) between the second and first ink layers and the adhesion (F1) between the first ink layer and the support are evaluated according to relative easiness between the separation between the second and first ink layers, and the separation between the first ink layer and the support, when transfer recording is effected on a recording medium.
  • Such evaluation of the adhesions is not affected by the form of separation between ink layers (e.g., whether or not the separation between the second and first ink layers has occurred strictly at the boundary between these layers, or whether or not some separation layer described hereinafter, if any, remains on the thermal transfer material).
  • the above-mentioned peeling strength is required to be 1 - 5 g/cm and may preferably be 2 - 4 g/cm. If the peeling strength is smaller than 1 g/cm, the separation of the second ink layer 4 can be easily caused therein to decrease the reproducibility in the transfer thereof. Alternatively, edge-cutting at the boundary between a heat-applied portion and a non-heat-applied portion is decreased with respect to the separation between the first and second ink layers thereby to decrease the selectivity in the separation therebetween.
  • the peeling strength is larger than 5 g/cm
  • the adhesion strength between the first ink layer and the second ink layer bonded to a recording medium by heat application becomes too large, and the difference with the adhesion (F1) between the support and the first ink layer and/or the adhesion (F3) between the second ink layer and the recording medium is difficult to be made sufficiently large.
  • the selective transferability of the second ink layer becomes insufficient, whereby clear color separation cannot be obtained and color reproducibility becomes poor.
  • the thermal transfer material according to the present invention satisfies a specific relationship with respect to the adhesions F1 and F2 and also provides a specific peeling strength at the above-mentioned specific temperature (90 °C).
  • the above-mentioned temperature 90 °C (or 40 °C) should be used only in order to define the characteristic of the thermal transfer material 1 per se, but these temperatures do not define the using (or thermal transfer recording) conditions for the thermal transfer material.
  • thermal transfer material 1 of the present invention having the above-mentioned character­istics, it is further preferred that the respective ink layers satisfy the following conditions.
  • the cohesion of the first ink layer is larger than that of the second ink layer at 90 °C.
  • the difference in cohesion between the first and second ink layers becomes larger, a recorded image of clearer color can be obtained by selective transfer of the second ink layer with less mixing of the first ink.
  • the first and second ink layers are composed of different materials which are mutually insoluble.
  • the binder constituting the first ink layer contains 50 parts or more of a resin as described hereinbelow, and the binder constituting the second ink layer contains 50 parts or more of a wax as described below, per 100 parts of the respective binders.
  • the second ink layer may preferably contain 70 parts or more of a wax per 100 parts of the binder, in order to more suitably attain a peeling strength of 1 - 5 g/cm.
  • the melt viscosity of the second ink layer may preferably be 5,000 - 9,000 mPa ⁇ S, more preferably 6,000 - 8,000 mPa ⁇ S at 140 °C, in order to suitably obtain a peeling strength of 1 - 5 g/cm.
  • the separation layer 5 is a layer for controlling the adhesion (F2) between the first and second ink layers. If the separation layer 5 is composed of a material having properties similar to those required of the second ink layer explained with reference to Figure 1, the second ink layer 4 is not necessarily required to satisfy the properties explained with reference to Figure 1. As a result, it becomes possible to compose the second ink layer of a material which can show a large adhesion to a recording medium, e.g., a material similar to one for constitut­ing the first ink layer in the embodiment shown in Figure 1, thus being further advantageous in improving the recorded image quality.
  • a material which can show a large adhesion to a recording medium e.g., a material similar to one for constitut­ing the first ink layer in the embodiment shown in Figure 1, thus being further advantageous in improving the recorded image quality.
  • melt viscosity of the second ink layer 4 is selected so that it provides 200 cps or more at a temperature 30 °C higher than the softening temperature of the second ink layer 4.
  • the melt viscosity of the separation layer may preferably be 5,000 - 9,000 mPa ⁇ S, more preferably 6,000 - 8,000 mPa ⁇ S at 140 °C, in order to suitably obtain a peeling strength of 1 - 5 g/cm.
  • the structure shown in Figure 2 is advantageous as compared with a structure not having a separation layer 5, in that substantially no separation is caused within the second ink layer 4 and therefore no fluctuation in density of recorded images results.
  • the above-mentioned peeling strength is smaller than 1 g/cm, the color separation between the first and second ink layers becomes poor.
  • the reason for this may for example be considered that in such case, the melt viscosity of the separation layer 5 becomes too low at the above-mentioned temperature, and the separation layer 5 may partially be crushed easily due to the pressure of a thermal head actually used (ordinarily, about 100 - 300 g as a load).
  • the support 2 of the thermal transfer material it is possible to use films of, e.g., polyester, aramide resin, nylon, polycarbonate, or paper such as capacitor paper, preferably having a thickness of about 3 to 12 microns. Too thick a support is not desirable because the heat conductivity becomes inferior. If a sufficient heat resistance and a strength are attained, a support can be thinner than 3 microns. It is sometimes advantageous to coat the back surface (opposite to the face on which the ink layers are disposed) with a layer for supplementing the heat resistance.
  • films of, e.g., polyester, aramide resin, nylon, polycarbonate, or paper such as capacitor paper preferably having a thickness of about 3 to 12 microns. Too thick a support is not desirable because the heat conductivity becomes inferior. If a sufficient heat resistance and a strength are attained, a support can be thinner than 3 microns. It is sometimes advantageous to coat the back surface (opposite to the face on which the ink layers are disposed) with a layer for supplementing the heat
  • the ink layers and the separation layer, if any, on the support 2 may preferably have a thickness of not exceeding 20 microns in total. Further, it is preferred that each of the first ink layer 3, second ink layer 4, and separations layer 5, has a thickness in the range of 0.5 - 10 microns.
  • thermo transfer recording method using the thermal transfer material of the present invention
  • ordinary heat sources such as infrared rays and laser beam may also be used in place of a thermal head.
  • a thin layer of a conductive material such as aluminum may be disposed as a return electrode between the support 2 and the first ink layer 3, or the ink layer per se may be made conductive, as desired.
  • the first ink layer 3 constituting a thermal transfer layer on the support 2 may be formed by dispersing a colorant of a first color tone in a binder (not intended to exclude a case where the colorant is dissolved in the binder), and the second ink layer 4 may be formed by dispersing a colorant of a second color tone in a binder.
  • the thermal transfer material of the present invention when the color of the first ink layer 3 and the second ink layer 4 are desired to be obtained substantially as they are, it is preferred to dispose a first ink layer 3 of a dark color such as black and a second ink layer 4 of a brighter color than that of the first ink layer such as yellow. Further, when the color of the second ink layer 4 and the mixed color due to mixing of the first and second ink layers are desired to be obtained, there may for example be disposed a first ink layer 3 of yellow and a second ink layer 4 of magenta, whereby two-color images with magenta and red portions can be obtained in the same manner as described above. Various two-color combinations can be obtained by using different kinds and concentrations of colorants and/or different proportions in thickness of ink layers.
  • the colorant may be selected from all of the known dyes and pigments including: carbon black, Nigrosin dyes, lamp black, Sudan Black SM, Alkali Blue, Fast Yellow G, Benzidine Yellow, Pigment Yellow, Indo Fast Orange, Irgadine Red, Paranitroaniline Red, Toluidine Red, Carmine FB, Permanent Bordeaux FRR, Pigment Orange R, Lake Red C, Rhodamine FB, Rhodamine B Lake, Methyl Violet B Lake, Phthalocyanine Blue, Pigment Blue, Brilliant Green B, Phthalocyanine Green, Oil Yellow GG, Zapon Fast Yellow CGG, Kayaset Y963, Kayaset TG, Smiplast Yellow GG, Zapon Fast Orange RR, Oil Scarlet, Smiplast Orange G, Orasol Brosn B, Zapon Fast Scarlet CG, Aizen Spiron Red BEH, Oil Pink OP, Victoria Blue F4R, Fastgen Blue 5007, Sudan Blue, and Oil Peacock Blue.
  • colorant may be used in a combination of two or more species as desired.
  • metal powder such as copper powder and aluminum powder or powder of mineral such as mica may also be used as a colorant.
  • other additives such as surfactants, plasticizers, mineral oils, vegetable oils, fillers, etc., may also be added to an ink layer or separation layer.
  • the binders for constituting the first and second ink layers and the materials for constituting the separation layer may be selected, as a single species or a combination of two or more species as desired, from the following materials: waxes including: natural waxes such as whale wax, beeswax, lanolin, carnauba wax, candelilla wax, montan wax and ceresin wax; petroleum waxes such as paraffin wax and micro-­crystalline wax; synthetic waxes such as oxidized wax, ester wax, low-molecular weight polyethylene, Fischer-­Tropsch wax and the like; higher fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, and behenic acid; higher alcohols such as stearyl alcohol and behenyl alcohol; esters such as fatty acid esters of sucrose and fatty acid esters of sorbitane; amides such as oleic amide; or resins including: polyolefin resins, polyamide resins, polyester resin,
  • the content of the colorant in each of the first and second ink layers may preferably be in the range of 1 - 90 %, particularly 2 - 80 %.
  • the ink layers and separation layer having the desired properties as described above may be obtained by appropriately controlling the properties such as molecular weights, crystallinities, etc., of the above mentioned materials or appropriately mixing a plurality of the above-mentioned materials.
  • the second ink layer 4 may preferably comprise an ethylenevinyl acetate resin, paraffin wax and a colorant; or an ethylenevinyl acetate resin, oxidized polyethylene and a colorant.
  • the separation layer 5, if any, may preferably comprise paraffin wax or carnanba wax.
  • the thermal transfer material according to the invention may be obtained by forming the respective layers by mixing the materials constituting the respective layers and an organic solvent such as methyl ethyl ketone, xylene and tetrahydrofuran capable of dissolving the binders and applying the thus formed coating liquids successively on the support.
  • an organic solvent such as methyl ethyl ketone, xylene and tetrahydrofuran capable of dissolving the binders
  • the so-called hot-melt coating method may be adopted, including the steps of blending, hot-melting and applying the materials in a molten state for the respective layers.
  • the materials for the respective layers may be formed into aqueous emulsions by the addition of a dispersant such as a surfactant, and the aqueous emulsion may be applied to form the respective layers.
  • the respective layers of the transfer material may also be formed by using the above mentioned coating methods in combination, i.e., by using different methods for the
  • a thermal transfer material which comprises at least a first and a second ink layer on a support and shows a specific relationship between the adhesion between the support and the first ink layer (F1) and the adhesion between the first and second ink layers (F2) at a specific temperature, and which also shows a specific peeling strength at this temperature.
  • thermal transfer material of the present invention it is possible to provide beautiful two-color images on a recording medium such as plain paper only by supplying a pattern of energy and separating the thermal transfer material from the recording medium while changing the length of time from the heat application until the separation.
  • melt viscosity of a sample was measured by means of a rotational viscometer (E-type).
  • the above components were sufficiently mixed to prepare an ink 1.
  • the ink 1 was applied onto a 6 micron-thick PET (polyethylene terephthalate) film and dried at 70 °C to form a first ink layer at a coating rate of 2 g/m2.
  • a first ink layer of the ink 1 was formed on a PET support in the same manner as in Example 1. Then, a separation layer was formed on the first ink layer by the ink 3 at a coating rate of 1.0 g/m2, and further a second ink layer was formed on the separation layer by the ink 4 at a coating rate of 2.5 g/m2, whereby a thermal transfer material (II) having a laminar structure as shown in Figure 2 was prepared.
  • a thermal transfer material (II) having a laminar structure as shown in Figure 2 was prepared.
  • a first ink layer in a coating amount of 2.0 g/m2 was formed on a 4.5 micron-thick PET support by the above ink 5, and a separation layer in a coating amount of 1.0 g/cm2 was formed on the first ink layer by the ink 6, and then a second ink layer in a coating amount of 2.5 g/m2 was formed on the separation layer by the ink 4, whereby a thermal transfer material (III) was prepared.
  • the thermal transfer material (I), (II) and (III) were respectively cut into a sheet form having a width of 2 cm and a length of 10 cm and then were superposed on wood-free paper having a surface smoothness of 200 sec so that their second ink layers contacted the paper. Then, heat corresponding to a solid print pattern was applied to the transfer material under the conditions of a pulse cycle of 1.4 msec., a pulse duration of 0.7 msec, and an applied energy of 13 mJ/mm2, whereby the thermal transfer materials and the wood-free paper were heat-bonded. Each of the superpositions of the thermal transfer material and the paper was loaded on a tensile tester (Tensilon RTM-100, mfd.
  • thermal transfer materials (I), (II) and (III) were respectively used for recording by means of a thermal transfer recording apparatus for an English typewriter (Typestar 6, mfd. by Canon K.K.).
  • FIG. 3 a system as schematically shown in Figure 3 was used.
  • the thermal transfer material 1 wound off from a supplying core 9a was moved to a heat-applying position, where it was pressed against a recording medium 7 supported by a platen 10 by means of a thermal head 6 so that the second ink layer thereof contacted the recording medium 7 and simultaneously a pattern of heat was applied to the thermal transfer material 1 from the thermal head 6.
  • the thermal transfer material 1 was peeled from the recording medium 7 at the rear end 6a of the thermal head 6 immediately after the heat application, only the second ink layer was transferred to the recording medium 7.
  • the thermal head 6 one prepared by Rohm K.K., having a length from the center of the heat generating part to the trailing end 6a of 350 microns was used.
  • a carriage 11 loading the thermal head 6 and the ribbon of the thermal transfer material 1 was moved in the direction of an arrow B , at a moving velocity of 50 mm/sec.
  • the time from heating until the peeling-off of the thermal transfer material 1 from the recording medium was about 7 msec when the thermal transfer material was peeled from the recording medium immediately after the heat application.
  • a thermal transfer material (IV) was prepared in the same manner as in Example 3 except that the second ink layer was formed by using the above-­mentioned ink 7.
  • a thermal transfer material (V) was prepared in the same manner as in Example 3 except that the separation layer was formed by using the above-­mentioned ink 8.
  • thermal transfer materials (IV) and (V) were respectively heat-bonded to wood-free paper and the peeling strengths were measured by using the the tensile tester in the same manner as in the case of the thermal transfer materials (I), (II) and (III) according to the present invention.
  • the thermal transfer materials (IV) and (V) were used for recording by means of the transfer recording apparatus (Typestar 6) in the same manner as in the case of the transfer material (I).
  • the thermal transfer material (IV) was peeled from a recording medium immediately after the heat application, it caused lacking of image and could not provide images reproducibly.
  • the thermal transfer material (V) was peeled from a recording medium immediately after the heat application, it only provided bluish black images wherein numerous black spots were mixed in a blue recorded image.
  • both of the above-­mentioned images provided by the thermal transfer materials (IV) and (V) were not usable in practice.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)
EP88309866A 1987-10-21 1988-10-20 Thermisches Übertragungsmaterial Withdrawn EP0313355A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP263731/87 1987-10-21
JP62263731A JPH01108089A (ja) 1987-10-21 1987-10-21 感熱転写材

Publications (2)

Publication Number Publication Date
EP0313355A2 true EP0313355A2 (de) 1989-04-26
EP0313355A3 EP0313355A3 (de) 1989-09-13

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EP88309866A Withdrawn EP0313355A3 (de) 1987-10-21 1988-10-20 Thermisches Übertragungsmaterial

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0539001A1 (de) * 1991-10-25 1993-04-28 Minnesota Mining And Manufacturing Company Auf thermischem Wege übertragbare, fluoreszierende Farbstoffbänder für wärmeempfindliche Aufzeichnung
EP1228893A3 (de) * 2001-02-02 2004-03-03 Fuji Photo Film Co., Ltd. Bildaufzeichnungsmaterial und Bildaufzeichnungsverfahren

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4880324A (en) * 1985-06-24 1989-11-14 Canon Kabushiki Kaisha Transfer method for heat-sensitive transfer recording

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0539001A1 (de) * 1991-10-25 1993-04-28 Minnesota Mining And Manufacturing Company Auf thermischem Wege übertragbare, fluoreszierende Farbstoffbänder für wärmeempfindliche Aufzeichnung
EP1228893A3 (de) * 2001-02-02 2004-03-03 Fuji Photo Film Co., Ltd. Bildaufzeichnungsmaterial und Bildaufzeichnungsverfahren

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Publication number Publication date
EP0313355A3 (de) 1989-09-13
JPH01108089A (ja) 1989-04-25

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