US3545997A - Method for coating on a substrate - Google Patents

Method for coating on a substrate Download PDF

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US3545997A
US3545997A US523054A US3545997DA US3545997A US 3545997 A US3545997 A US 3545997A US 523054 A US523054 A US 523054A US 3545997D A US3545997D A US 3545997DA US 3545997 A US3545997 A US 3545997A
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thermographic
infra
substrate
layer
toner
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David Louis Hochberg
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Pitney Bowes Inc
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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
    • B41M5/398—Processes based on the production of stickiness patterns using powders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17—Dry transfer
    • B44C1/1712—Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive

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  • thermographic transfer printing member which comprises applying thermographic ink particles to the topside of a substrate, irradiating the ink from the underside of the substrate and through the substrate, whereby a layer of ink is fused to the topside of the substrate and then transferring the fused ink layer to a receiving substrate which comprises placing the receiving substrate in contact with the fused ink layer, irradiating the ink layer from the underside of the substrate through a stencil means and through the substrate, whereby portions of the ink layer are transferred to the receiving substrate.
  • This invention relates to a method for preparing a thermally fusible coating on a substrate.
  • the invention further relates to the preparation of a thermographic printing member which may be rejuvenated and resued in a continuous manner.
  • thermographic printing method is disclosed in copending, commonly assigned application Ser. No. 503,218 of Gilbert Zweig, filed Oct. 23, 1965, now abandoned. That method makes use of radiation rich in infra-red and a stencil master which transmits the radiation in the image areas but not in the non-image areas.
  • the stencil consists of a metallic coated transparent material known in the art as leafing foil. When such foils are typed upon, the
  • the stencil is then placed over a heat fusible transfer carbon sheet which contains an infra-red absorbing pigment in the carbon layer.
  • the stencil is placed against the non-carbon side, and a sheet of copy paper is placed next to the carbon side.
  • the stencil is then irradiated with a source of rays which are rich in infra-red which fuses the carbon layer in the image areas and transfers it to the copy sheet to form an image corresponding to the stencil image.
  • the transfer carbon After imaging, the transfer carbon is devoid of transfer material-in the transfer area and has to be discarded and replaced by a new carbon sheet for the next printing. Thus the necessity of replacing the carbon sheet each time can be costly.
  • lt is therefore an object of this invention to provide a thermal carbon transfer medium which may be rejuvenated and reused after each printing.
  • a further object is to provide a thermal transfer carbon by which the cost of thermal printing may be reduced.
  • Another object is to provide a method for continuously: forming a thermal transfer carbon medium in a thermographic printing process.
  • Still another object is to prepare a coating of uniform thickness, even on slightly irregular support material.
  • a further object is to provide a method for coating a substrate which is transparent to infra-red with a material which is heat absorptive and thermally fusible.
  • thermographic carbon layer which is used in a thermographic printing operation and rejuvenated by recoating the used areas of each printing operation.
  • the invention may be better understood by reference to the gure which shows a cross-sectional View in elevation of the endless belt and the application of toner powder, thermographic printing and reapplication of toner.
  • a transparent endless belt 1 (made for example of Du Pont Mylar polyethylene terephthalate) is adapted to travel around rollers 1A and 1B.
  • An excess of a thermographic toner powder is deposited on belt 1 at 2.
  • the belt with excess toner passes over infra-red lamp 3 in front of reilector 4 which fuses the toner particles and forms a layer 5 on belt 1.
  • Excess, unfused toner is removed at 6 either by brush, vacuum means employing both, gravity, electrostatic forces, or the like.
  • Belt 1 with fused toner layer 5 is then equivalent to a transfer carbon sheet and is then used for thermographic printing at infra-red lamp 7 in front of reflector 8.
  • a stencil 10 which has transparent image areas 11 and is non-transparent in the remaining areas, is placed between infra-red lamp 7 and belt 1.
  • a receptor paper 12 which may be an envelope, paper sheet or the like on which the stencil image is to be made, is placed in contact with transfer layer 5 in register with stencil 10. Stencil 10 is then irradiated with brief but intense infrared radiation. The layer 5 is fused and transferred to receptor paper 12.
  • the fusing radiation from lamp 3 should be less intense than that of lamp 7 at the exposing station. This is done so that the layer fused on belt 1 by lamp 3 and deposited on the belt will not be so thick that lamp 7 will not be able to fuse it to effect transfer of the layer from belt 1 to receptor paper 12.
  • the layer on belt 1 After the exposure to infra-red lamp 7, the layer on belt 1 has a vacant area as shown at 13. From this point, belt 1 again comes to the point for applying an excess amount of toner at 2A. The toner powder will be deposited on top of layer 5 except at point 13 where toner will be deposited on the vacant area and in contact with the surface of belt 1. The entire process is then repeated, fusing the toner in the vacant area 13A to form a new continuous layer 11 for thermographic printing.
  • Belt speeds have been varied from between one-half and four feet per second using 200 watt/inch infra-red lamps but can be increased by use of more powerful lamps.
  • Belt 1 may be made part of a thermographic printing machine and it will be obvious that the necessary means for moving belt 1 and for turning the infra-red lamps on at the proper times for applying the toner powder, and feeding stencils and receptor paper may all be provided as well known in the art to provide a continuous method.
  • the toner powder used is a thermographic type, i.e. it is readily fusible under heat.
  • Suitable toners are made by mixing a pigment which absorbs infra-red in a molten wax, allowing the wax to harden, and pulverizing the wax and classifying it into a finely divided powder.
  • suitable waxes for pebble milling Castorwax (Baker Castor Oil Co.) was one such wax.
  • the wax melting point must not be too high since this would lead to damaging of the stencil before fusion of the powder occurs.
  • Suitable pigments are those whtich absorb appreciable amounts of infra-red radiation, such as carbon black and black magnetizable iron oxide.
  • the amount of pigment can vary from about 5% up to the maximum capable of dispersion in the wax, up to 50% or more. Generally, 20% is quite satisfactory for good image density and low smearing tendency. Smearing of copy images is worsened by employing lower melting waxes and/ or by increasing the pigment concentration.
  • Low melting waxes can be used if they are hard waxes and can be milled in the solid state. They should have a melting point above about 71 C. Some suitable waxes are described in the subsequent specific examples of toner preparation.
  • a fusible toner can be made from readily available resinous materials such as shellac and the like, in the same manner.
  • thermographic toner compositions The following examples describe the preparation of suitable thermographic toner compositions.
  • the resulting solid mass was then placed in a micro pulverizer for about l530 sec., after which it was placed in a half-filled pebble mill and milled overnight (about 18 hours) until finely pulverized and 7.5 percent of the starting weight passed through a 400 mesh (75 micron opening) sieve.
  • the resulting 75 micron toner power had a fusion temperature of 85 C. (Fisher-Johns)
  • EXAMPLE II In the same manner as described in Example I, 60 grams of Candelilla Wax (Ross Wax Co.) were combined with grams of nely divided carbon black (Regal SRF, Cabot Corp.). 2.4 percent of the linely divided powder passed through a 400 mesh sieve and had a fusion point of 71 C. (Fisher-Johns). This amount was useful as a thermographic toner.
  • thermographic toner powder was produced in the same manner described in Example I from grams of Castorwax (Baker Castor Oil Co.) and 50 grams IRN 350 magnetic iron oxide (William and Co.) which had a melting point of C. (Fisher-Johns). 4.8 percent passed through a 400 mesh sieve and this amount was useful as a thermographic toner.
  • thermographic toner powder was prepared as in Example I, from 80 grams of Petrolite WB-S wax (Bareco Wax Co.) and 20 grams Vulcan 3 finely divided carbon (Cabot Corp.). The amount of product passing through a mesh sieve was useful as a thermographic toner powder and had a melting point 84 C. (Fisher-Johns).
  • thermographic toner powder EXAMPLE V Petronauba D wax (Bareco Wax Co.) and Regal SRF finely divided carbon were combined as in Example IV, with similar results in obtaining a thermographic toner powder.
  • Example VI Cerathane Polymer 63 (Bareco Wax Co.) was substituted in Example V and the thermographic toner powder obtained had a melting point of 82 C. (Fisher-Johns).
  • any substrate which is somewhat transparent to infra-red can be coated.
  • the granular or powdered material be heat absorptive and that the web material be transmissive of infra-red radiation and have a deformation temperature well above the fusion temperature of the coating material. This can be readily accomplished by mixing carbon black with the fusible material.
  • the method may therefore be used to produce a coated web by continuously depositing a heat absorptive granular or powdery material on the surface of the web and heating from below with infra-red to fuse a layer of the material on the surface of the web.
  • the coating thickness is quite uniform because the heat of fusion propagates through the fusible layer of particles for a given distance regardless of the thickness of the layer of excess fusible particles.
  • thermographic toner could be fused onto the belt by having a solid mass of toner in Contact with the surface of the belt, and passing radiation from the opposite side of the belt and through the belt to fuse the toner.
  • thermographic transfer printing member for use in thermographic printing which comprises:
  • thermographic material depositing a quantity of a powdered thermographic material in contact with the surface of an endless substrate carrier which is transparent throughout its extent to infra-red radiation
  • thermographic material irradiating said thermographic material through said substrate carrier with infra-red radiation to uniformly fuse a layer of said material to the surface of said substrate carrier
  • thermographic material irridiated through said stencil and substrate carrier being transferred to a receptive sheet placed in contact with said thermographic material, thereby leaving vacant areas in said layer
  • thermographic material depositing additional thermographic material in contact with said substrate carrier at said vacant areas
  • thermographic material lagain irradiating said thermographic material with infra-red radiation through said substrate carrier to fuse said additional material in said vacant areas to reform said uniform layer.
  • thermographic transfer printing member for use in thermographic printing which comprises:
  • thermographic material depositing an excess quantity of a powdered thermographic material on the surface of an endless substrate carrier which is transparent throughout its extent to infra-red radiation
  • thermographic material moving said substrate carrier with said material thereon past a source of infra-red radiation disposed on the side of said substrate carrier remote from said thermographic material
  • thermographic material irradiating said thermographic material through said substrate carrier with infra-red radiation to uniformly fuse a continuous layer of said material over the surface of said substrate carrier

Description

Dc. 8, v1.970 D. 1 HOCHBERG METHOD FOR COATING ON A SUBSTRATE Filed Jan. 2e, 196e NVENTOR. DAVU LOUIS HOCHBERG MMJ/. 21
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United States Patent O 3,545,997 METHOD FOR COATING N A SUBSTRATE David Louis Hochberg, New York, N.Y., assignor to Pitney-Bowes, Inc., Stamford, Conn., a corporation of Delaware Filed Jan. 26, 1966, Ser. No. 523,054 Int. Cl. B41m 5/18; B44d 1/94, 1/50 U.S. Cl. 117-17 2 Claims ABSTRACT 0F THE DISCLOSURE This invention relates to a method of producing a thermographic transfer printing member which comprises applying thermographic ink particles to the topside of a substrate, irradiating the ink from the underside of the substrate and through the substrate, whereby a layer of ink is fused to the topside of the substrate and then transferring the fused ink layer to a receiving substrate which comprises placing the receiving substrate in contact with the fused ink layer, irradiating the ink layer from the underside of the substrate through a stencil means and through the substrate, whereby portions of the ink layer are transferred to the receiving substrate.
This invention relates to a method for preparing a thermally fusible coating on a substrate. The invention further relates to the preparation of a thermographic printing member which may be rejuvenated and resued in a continuous manner.
A thermographic printing method is disclosed in copending, commonly assigned application Ser. No. 503,218 of Gilbert Zweig, filed Oct. 23, 1965, now abandoned. That method makes use of radiation rich in infra-red and a stencil master which transmits the radiation in the image areas but not in the non-image areas. The stencil consists of a metallic coated transparent material known in the art as leafing foil. When such foils are typed upon, the
metallic layer is transferred off in the areas struck by the typewriter keys to leave transparent image areas and forms a radiation-transmitting stencil.
The stencil is then placed over a heat fusible transfer carbon sheet which contains an infra-red absorbing pigment in the carbon layer. The stencil is placed against the non-carbon side, and a sheet of copy paper is placed next to the carbon side. The stencil is then irradiated with a source of rays which are rich in infra-red which fuses the carbon layer in the image areas and transfers it to the copy sheet to form an image corresponding to the stencil image.
After imaging, the transfer carbon is devoid of transfer material-in the transfer area and has to be discarded and replaced by a new carbon sheet for the next printing. Thus the necessity of replacing the carbon sheet each time can be costly.
lt is therefore an object of this invention to provide a thermal carbon transfer medium which may be rejuvenated and reused after each printing.
A further object is to provide a thermal transfer carbon by which the cost of thermal printing may be reduced.
Another object is to provide a method for continuously: forming a thermal transfer carbon medium in a thermographic printing process.
Still another object is to prepare a coating of uniform thickness, even on slightly irregular support material.
A further object is to provide a method for coating a substrate which is transparent to infra-red with a material which is heat absorptive and thermally fusible.
These and other objects of my invention will ,become apparent as the description thereof proceeds.
The above objects may be achieved by the use of an endless belt coated with a thermographic carbon layer which is used in a thermographic printing operation and rejuvenated by recoating the used areas of each printing operation.
The invention may be better understood by reference to the gure which shows a cross-sectional View in elevation of the endless belt and the application of toner powder, thermographic printing and reapplication of toner.
A transparent endless belt 1 (made for example of Du Pont Mylar polyethylene terephthalate) is adapted to travel around rollers 1A and 1B. An excess of a thermographic toner powder is deposited on belt 1 at 2. The belt with excess toner passes over infra-red lamp 3 in front of reilector 4 which fuses the toner particles and forms a layer 5 on belt 1. Excess, unfused toner is removed at 6 either by brush, vacuum means employing both, gravity, electrostatic forces, or the like.
Belt 1 with fused toner layer 5 is then equivalent to a transfer carbon sheet and is then used for thermographic printing at infra-red lamp 7 in front of reflector 8. For this purpose, a stencil 10, which has transparent image areas 11 and is non-transparent in the remaining areas, is placed between infra-red lamp 7 and belt 1. A receptor paper 12, which may be an envelope, paper sheet or the like on which the stencil image is to be made, is placed in contact with transfer layer 5 in register with stencil 10. Stencil 10 is then irradiated with brief but intense infrared radiation. The layer 5 is fused and transferred to receptor paper 12.
The fusing radiation from lamp 3 should be less intense than that of lamp 7 at the exposing station. This is done so that the layer fused on belt 1 by lamp 3 and deposited on the belt will not be so thick that lamp 7 will not be able to fuse it to effect transfer of the layer from belt 1 to receptor paper 12.
After the exposure to infra-red lamp 7, the layer on belt 1 has a vacant area as shown at 13. From this point, belt 1 again comes to the point for applying an excess amount of toner at 2A. The toner powder will be deposited on top of layer 5 except at point 13 where toner will be deposited on the vacant area and in contact with the surface of belt 1. The entire process is then repeated, fusing the toner in the vacant area 13A to form a new continuous layer 11 for thermographic printing.
Although two areas of toner application are shown in the ligure, this is for illustration. There is actually only one tone applicator since belt 1 is continuous and is recycled.
Belt speeds have been varied from between one-half and four feet per second using 200 watt/inch infra-red lamps but can be increased by use of more powerful lamps.
Belt 1 may be made part of a thermographic printing machine and it will be obvious that the necessary means for moving belt 1 and for turning the infra-red lamps on at the proper times for applying the toner powder, and feeding stencils and receptor paper may all be provided as well known in the art to provide a continuous method.
The toner powder used is a thermographic type, i.e. it is readily fusible under heat. Suitable toners are made by mixing a pigment which absorbs infra-red in a molten wax, allowing the wax to harden, and pulverizing the wax and classifying it into a finely divided powder. As suitable waxes for pebble milling, Castorwax (Baker Castor Oil Co.) was one such wax. The wax melting point must not be too high since this would lead to damaging of the stencil before fusion of the powder occurs.
Suitable pigments are those whtich absorb appreciable amounts of infra-red radiation, such as carbon black and black magnetizable iron oxide.
The amount of pigment can vary from about 5% up to the maximum capable of dispersion in the wax, up to 50% or more. Generally, 20% is quite satisfactory for good image density and low smearing tendency. Smearing of copy images is worsened by employing lower melting waxes and/ or by increasing the pigment concentration.
Low melting waxes can be used if they are hard waxes and can be milled in the solid state. They should have a melting point above about 71 C. Some suitable waxes are described in the subsequent specific examples of toner preparation.
In addition, a fusible toner can be made from readily available resinous materials such as shellac and the like, in the same manner.
The following examples describe the preparation of suitable thermographic toner compositions.
EXAMPLE I 80 grams of Castorwax (Baker Castor Oil Co.) having a melting point of 85 C. were placed in a beaker and heated with agitation until molten. Then grams of Regal SRF carbon black (Cabot Corp.) and l gram of Armour PE 200 antistatic agent were blended into the wax while still molten until a more or less uniform mixture was obtained. The blend of wax and carbon black was then poured on a at surface and allowed to solidify at ambient temperature. The resulting solid mass was then placed in a micro pulverizer for about l530 sec., after which it was placed in a half-filled pebble mill and milled overnight (about 18 hours) until finely pulverized and 7.5 percent of the starting weight passed through a 400 mesh (75 micron opening) sieve. The resulting 75 micron toner power had a fusion temperature of 85 C. (Fisher-Johns) EXAMPLE II In the same manner as described in Example I, 60 grams of Candelilla Wax (Ross Wax Co.) were combined with grams of nely divided carbon black (Regal SRF, Cabot Corp.). 2.4 percent of the linely divided powder passed through a 400 mesh sieve and had a fusion point of 71 C. (Fisher-Johns). This amount was useful as a thermographic toner.
EXAMPLE III A thermographic toner powder was produced in the same manner described in Example I from grams of Castorwax (Baker Castor Oil Co.) and 50 grams IRN 350 magnetic iron oxide (William and Co.) which had a melting point of C. (Fisher-Johns). 4.8 percent passed through a 400 mesh sieve and this amount was useful as a thermographic toner.
EXAMPLE IV A thermographic toner powder was prepared as in Example I, from 80 grams of Petrolite WB-S wax (Bareco Wax Co.) and 20 grams Vulcan 3 finely divided carbon (Cabot Corp.). The amount of product passing through a mesh sieve was useful as a thermographic toner powder and had a melting point 84 C. (Fisher-Johns).
EXAMPLE V Petronauba D wax (Bareco Wax Co.) and Regal SRF finely divided carbon were combined as in Example IV, with similar results in obtaining a thermographic toner powder.
EXAMPLE VI Cerathane Polymer 63 (Bareco Wax Co.) was substituted in Example V and the thermographic toner powder obtained had a melting point of 82 C. (Fisher-Johns).
In the same manner as described above, any substrate which is somewhat transparent to infra-red can be coated. Thus even paper as well as numerous types of plastic sheet materials maybe coated. lt is only necessary that the granular or powdered material be heat absorptive and that the web material be transmissive of infra-red radiation and have a deformation temperature well above the fusion temperature of the coating material. This can be readily accomplished by mixing carbon black with the fusible material. The method may therefore be used to produce a coated web by continuously depositing a heat absorptive granular or powdery material on the surface of the web and heating from below with infra-red to fuse a layer of the material on the surface of the web. The coating thickness is quite uniform because the heat of fusion propagates through the fusible layer of particles for a given distance regardless of the thickness of the layer of excess fusible particles.
Moreover, although I have described application of thermographic toner to the belt as a powder, the thermographic toner could be fused onto the belt by having a solid mass of toner in Contact with the surface of the belt, and passing radiation from the opposite side of the belt and through the belt to fuse the toner.
While I have disclosed certain specific embodiments of my invention, this is only for the purpose of illustration. It will be understood that various changes and modification may be made without departing from the spirit of the disclosure or the scope of the appended claims.
What is claimed is:
1. A method for producing a continuous thermographic transfer printing member for use in thermographic printing which comprises:
(A) depositing a quantity of a powdered thermographic material in contact with the surface of an endless substrate carrier which is transparent throughout its extent to infra-red radiation,
(B) moving said substrate carrier fwith said material thereon past a source of infra-red radiation disposed on the side of said substrate carrier remote from said thermographic material,
(C) irradiating said thermographic material through said substrate carrier with infra-red radiation to uniformly fuse a layer of said material to the surface of said substrate carrier,
(D) transferring a part of said layer off of said substrate carrier by irradiating said thermographic material ywith a second source of infra-red radiation through said substrate and a stencil placed between said second source of infra-red radiation and said substrate carrier, said second source of infra-red radiation being of a higher intensity than that used to fuse said thermographic material, the thermographic material irridiated through said stencil and substrate carrier being transferred to a receptive sheet placed in contact with said thermographic material, thereby leaving vacant areas in said layer,
(E) depositing additional thermographic material in contact with said substrate carrier at said vacant areas, and
(F) lagain irradiating said thermographic material with infra-red radiation through said substrate carrier to fuse said additional material in said vacant areas to reform said uniform layer.
2. A method for producing a continuous thermographic transfer printing member for use in thermographic printing which comprises:
(A) depositing an excess quantity of a powdered thermographic material on the surface of an endless substrate carrier which is transparent throughout its extent to infra-red radiation,
(B) moving said substrate carrier with said material thereon past a source of infra-red radiation disposed on the side of said substrate carrier remote from said thermographic material,
(C) irradiating said thermographic material through said substrate carrier with infra-red radiation to uniformly fuse a continuous layer of said material over the surface of said substrate carrier,
(D) removing excess, unfused material to leave a References Cited layer of uniform thickness on said substrate carrier,
(E) transferring a part of said layer off of said sub- UNITED STATES PATENTS strate carrier by irradiating said thermographic ma- 2677622 5/1954 Schoufede 117-21X terial with a second source of infra-red radiation 5 2807703 9/1957 Rosh@ 117-175X through said substrate and a stencil placed between 2992121 7/1961 Francls et al' 117-36'1 said second source of infra-red radiation and said 3256811 6/1966 Bach 117-17X substrate carrier, said second source of infra-red 2503758 4/1950 Murray 117-37 radiation being of 'a higher intensity than that used 2503759 4/1950 Murray 117-37 to fuse said therrnographic material, the thermo- 10 2511024 6/1950 Toulmm 117-41 graphic material irradiated through said stencil and 2616961 11/1952 Groak 250`651 substrate carrier being transferred to a receptive 2629671 2/1953 Murray? 1178 sheet placed in contact with said thermographic 2990278 6/1961 Carlson y 117-17'5X material, thereby leaving vacant areas in said layer, 3013878 12/1961 Dessauer 117`17`5X (F) depositing additional thermographic material on 15 3205856 9/1965 Sorensen Irl- 21X said carrier on said vacant areas, and (G) again irradiating said thermographic material with WILLIAM D' MARTIN Prlmary Exammer nfra-red radiation through said substrate carrier to P- E- ATTAGULE, Assistant Examiner fuse said additional material in said vacant areas to reform said continuous layer on said substrate 20 Us' Cl' X-R' carrier. 117-2, 3.2, 17.5, 21, 23, 36.1, 226; 250-65
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Cited By (16)

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US3900593A (en) * 1972-06-16 1975-08-19 Corning Glass Works Method of producing magnetic metal oxide films bonded to a substrate
US3987728A (en) * 1974-09-18 1976-10-26 Eastman Kodak Company Relief printing process
US4073992A (en) * 1972-12-01 1978-02-14 National Distillers And Chemical Corporation Printing on a polyolefin substrate
US4133906A (en) * 1973-01-12 1979-01-09 Coulter Systems Corporation Method of toning an electrophotographic film
US5582865A (en) * 1988-12-12 1996-12-10 Extraction Systems, Inc. Non-woven filter composite
US8678805B2 (en) 2008-12-22 2014-03-25 Dsm Ip Assets Bv System and method for layerwise production of a tangible object
US8777602B2 (en) 2008-12-22 2014-07-15 Nederlandse Organisatie Voor Tobgepast-Natuurwetenschappelijk Onderzoek TNO Method and apparatus for layerwise production of a 3D object
WO2014109703A1 (en) * 2013-01-11 2014-07-17 Floor Iptech Ab Digital thermal binder and powder printing
US8905739B2 (en) 2008-12-22 2014-12-09 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Method and apparatus for layerwise production of a 3D object
US9079212B2 (en) 2013-01-11 2015-07-14 Floor Iptech Ab Dry ink for digital printing
US9446602B2 (en) 2012-07-26 2016-09-20 Ceraloc Innovation Ab Digital binder printing
US10035358B2 (en) 2012-07-17 2018-07-31 Ceraloc Innovation Ab Panels with digital embossed in register surface
US10041212B2 (en) 2013-02-04 2018-08-07 Ceraloc Innovation Ab Digital overlay
US10239346B2 (en) 2010-03-05 2019-03-26 Unilin Bvba Method of manufacturing a floor board
US10899166B2 (en) 2010-04-13 2021-01-26 Valinge Innovation Ab Digitally injected designs in powder surfaces
US11878324B2 (en) 2013-01-11 2024-01-23 Ceraloc Innovation Ab Digital thermal binder and powder printing

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US8678805B2 (en) 2008-12-22 2014-03-25 Dsm Ip Assets Bv System and method for layerwise production of a tangible object
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