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EP0121323A1 - Printing process - Google Patents

Printing process Download PDF

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Publication number
EP0121323A1
EP0121323A1 EP84301290A EP84301290A EP0121323A1 EP 0121323 A1 EP0121323 A1 EP 0121323A1 EP 84301290 A EP84301290 A EP 84301290A EP 84301290 A EP84301290 A EP 84301290A EP 0121323 A1 EP0121323 A1 EP 0121323A1
Authority
EP
European Patent Office
Prior art keywords
polymer
printed
printing
colour
design
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Withdrawn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
EP84301290A
Other languages
German (de)
French (fr)
Inventor
Keith Gifford Harlan Hooper
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.)
COLOUR ACTIVATED TRANSILLUMINATION SYSTEMS Ltd
Original Assignee
COLOUR ACTIVATED TRANSILLUMINATION SYSTEMS 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
Application filed by COLOUR ACTIVATED TRANSILLUMINATION SYSTEMS Ltd filed Critical COLOUR ACTIVATED TRANSILLUMINATION SYSTEMS Ltd
Publication of EP0121323A1 publication Critical patent/EP0121323A1/en
Withdrawn legal-status Critical Current

Links

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
    • B41M5/0041—Digital printing on surfaces other than ordinary paper
    • B41M5/0064—Digital printing on surfaces other than ordinary paper on plastics, horn, rubber, or other organic polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/14—Multicolour printing
    • B41M1/18—Printing one ink over another
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/26—Printing on other surfaces than ordinary paper
    • B41M1/30—Printing on other surfaces than ordinary paper on organic plastics, horn or similar materials
    • 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
    • B41M5/0011—Pre-treatment or treatment during printing of the recording material, e.g. heating, irradiating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
    • B41M7/0027—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using protective coatings or layers by lamination or by fusion of the coatings or layers

Definitions

  • the present invention is concerned with a method of printing the surfaces of synthetic polymer materials.
  • Silk screen printing has the disadvantages that it is difficult to obtain accurate registration and fine definition
  • transfer printing has the disadvantage that a different pigment is required for each colour required in the final printed design: for a multi-coloured design, many pigments, for example, up to 16 different pigments, may be required. For each different pigment, a separate printing roller is required and the use of such a large number of printing rollers causes severe difficulties in obtaining colour registration.
  • a method of printing a coloured printed design on a polymer body in which the printed design penetrates into the surface of said polymer body such that it cannot be erased by solvent action or mechanical abrasion without destruction of said surface.
  • the method according to the invention may be a four-colour printing process, which involves making four colour-separation negatives from the desired design by means of colour filters (the four colours being, for example, magenta, yellow, cyan and black), preparing corresponding printing plates from each of the colour-separation negatives and printing on the polymer surface using each of the resulting printing plates, in succession and in register, using an appropriate ink for each printing plate.
  • colour filters the four colours being, for example, magenta, yellow, cyan and black
  • printing plates as used herein includes other printing surfaces, such as printing rollers.
  • colour separation is carried out as if for the known four-colour printing of paper, it is generally necessary to modify the colour and/or composition of the inks used; an appropriate combination of inks can generally be arrived at empirically, but this is generally less satisfactory than preparing colour separation negatives specific to the surface to be printed.
  • the or each printing plate used in the method according to the invention is preferably gravure, lithographic or flexographic; the or each printing plate may be prepared by a generally conventional process, such as screening.
  • the polymer which is printed according to the invention may be in any suitable physical form, such as in the form of a 3-dimensional moulded article or in laminar form (such as a film, sheet, coating or textile fabric).
  • the polymer when it is in the form of a film, sheet or moulded article, it may be made of a thermoplastic polymer, such as a polyester, nylon, polypropylene, polystyrene (including high impact polystyrene), an acrylic polymer, a polycarbonate,polyvinyl chloride, a cellulosic polymer, or a thermoset polymer such as an alkyd, an unsaturated polyester, an epoxy resin, a phenoplast or an aminoplast.
  • the polymer may, when in the form of a moulded article, contain conventional reinforcement, such as, for example, glass fibres.
  • Such polymers may also be used in the method according to the invention in the form of a coating on, for example, wood, hardboard, chipboard, laminated plastics, metals (such as etched metals or anodised aluminium) or ceramics.
  • the polymer When the polymer is in the form of a coating, it may have been applied, for example, by spraying (e.g. electrostatic spraying) or curtain coating; the coating may be a stoved coating.
  • spraying e.g. electrostatic spraying
  • curtain coating When the substrate is a ceramic article (such as a ceramic tile),curtain coating is preferred, whereas when the substrate is a metal, electrostatic spraying is preferred.
  • the polymer printed according to the present invention is a textile
  • it may be, for example, of polyamide, polyester, and acrylic polymer, or polypropylene.
  • the polymer when the article being printed is a textile, then the polymer may comprise a natural polymer, in addition to, or instead of, a synthetic polymer. Examples of such natural polymers include wool and cotton textiles.
  • Such textiles may, for example, be in the form of woven fabric, knitted fabric, or even open mesh net.
  • the coloured inks used in the method according to the invention preferably comprise dyes or pigments in an oil or resin base; solvent free inks are sometimes preferred.
  • suitable inks are available commercially from Coates Brothers under the designation Lithotex 137 17/220. Such inks have good colourfastness and are resistant to washing, perspiration, dry cleaning, rubbing and gas-fading.
  • the other surface thereof is subjected to elevated temperature and pressure before or during application of the printed design (for example, by means of a heated press plate).
  • the elevated temperature employed is preferably from 100 to 220°, more preferably 110 to 180°C. Higher temperatures in the above ranges can be employed when the polymer is relatively thermally stable (such as a polyurethane) or in the form of a coating on a thermally stable backing (such as PVC or a polyurethane on a thermally stable fabric backing).
  • the pressure employed may be from 1 to 400 psi. preferably from 50 to 200 psi. Lower pressures are generally employed for thinner polymer substrates and higher pressures for thicker substrates. For example, a pressure as low as 1 psi can be used when printing a very thin PVC film, such as one having a thickness as low as 12, or where low gloss is wanted.
  • the polymer substrate can be laminated to another polymer layer at the same time as the printing process according to the invention is carried out.
  • the printing may be carried out by a transfer process as an alternative to the four-colour process described above.
  • a glossy finish can be applied to the print by the use of a glossy transfer -paper and/or by the use of glazing rollers.
  • the plasticiser should not be such as to allow too much migration of dye away from areas to be printed. Accordingly, when the polymer is PVC, it desirably is not plasticised by means of styrene-butadiene copolymer.
  • a polymer body which is printed according to the invention may act as a support for the printed design, the printed body being bonded to an article it is wished to decorate, either with the printed design on the polymer surface facing the article to be decorated (in which case the polymer would, of course, be transparent) or with another surface adhered to the final substrate.
  • the method according to the invention results in printing, not just on the surface, but penetration of dyes into the layer adjacent the surface, making the resulting printed designs more permanent than those obtained in prior processes (that is, the printed design cannot be erased by solvent action or mechanical abrasion without destruction of the polymer surface).
  • One surface of unsupported PVC film was heated by a heated press plate at 110°C for a dwell time of 80 seconds and a pressure of 200 psi, and the other surface thereof was printed by a four-colour printing process. Excellent colour reproduction and print clarity was obtained.
  • Example 1 was repeated using a dwell time of 50 seconds and a pressure of 100 psi, the printing being lithographic using two colours. Good colour reproduction and print clarity was obtained.
  • One surface of unsupported PVC film was heated by a heated press plate at 110°C for a dwell time of 40 seconds and a pressure of 100 psi, and the other surface thereof was gravure printed in three colours to form a checked pattern. Excellent colour reproduction and print clarity was obtained.
  • One surface of unsupported PVC film was heated by a heated press plate at 150°C for a dwell time of 30 seconds and a pressure of 100 psi.
  • the other surface was screen printed in multiple colours; excellent colour reproduction and print clarity were obtained.
  • Example 1 was repeated. using a temperature of 160°C and a dwell time of 40 seconds; similar results were obtained.
  • PVC coated cotton fabric was pressed on the cotton surface by means of a press plate at110°C for 50 seconds and 40 seconds, respectively, using a pressure of 100 psi.
  • the other surface was then printed as in Example 1; similar results were obtained.

Landscapes

  • Printing Methods (AREA)

Abstract

A coloured design is printed onto a polymersurface (pre-; ferably by afour-colour printing process) such thatthe design penetrates into the polymer surface and cannot be erased by solvent action or mechanical abrasion without destruction of the surface. The polymer is preferably in the form of a sheet, film or coating and the non-printed surface is subjected to elevated temperature before or during application of the printed design.

Description

  • The present invention is concerned with a method of printing the surfaces of synthetic polymer materials. There are many known ways of printing the surfaces of synthetic polymer materials, such as lithographic processes, silk screen processes, transfer processes, ink jet printing processes and intaglio (gravure) processes.
  • Conventional methods of applying multi-coloured designs to polymer surfaces include silk screen printing and transfer printing. Silk screen printing has the disadvantages that it is difficult to obtain accurate registration and fine definition, and transfer printing has the disadvantage that a different pigment is required for each colour required in the final printed design: for a multi-coloured design, many pigments, for example, up to 16 different pigments, may be required. For each different pigment, a separate printing roller is required and the use of such a large number of printing rollers causes severe difficulties in obtaining colour registration.
  • According to the present invention, there is provided a method of printing a coloured printed design on a polymer body, in which the printed design penetrates into the surface of said polymer body such that it cannot be erased by solvent action or mechanical abrasion without destruction of said surface.
  • The method according to the invention may be a four-colour printing process, which involves making four colour-separation negatives from the desired design by means of colour filters (the four colours being, for example, magenta, yellow, cyan and black), preparing corresponding printing plates from each of the colour-separation negatives and printing on the polymer surface using each of the resulting printing plates, in succession and in register, using an appropriate ink for each printing plate. (The term "printing plate" as used herein includes other printing surfaces, such as printing rollers.)
  • This corresponds generally to a known four-colour process and enables designs to be obtained with any desired colours, by suitable choice of coloured inks and overlap of printed dot areas, as appropriate. The four-colour process has, until now, only been used for printing on the surfaces of paper, paper articles, and the like. In order to adapt the process known for four-colour printing of paper for printing of polymer surfaces, we ensure that the inks penetrate the polymer surface. In addition, we generally prefer to employ colour separation obtained by electronic scanning; this enables optimised colour separation to be obtained, relevant to the substrate being printed. If colour separation is carried out as if for the known four-colour printing of paper, it is generally necessary to modify the colour and/or composition of the inks used; an appropriate combination of inks can generally be arrived at empirically, but this is generally less satisfactory than preparing colour separation negatives specific to the surface to be printed.
  • The or each printing plate used in the method according to the invention is preferably gravure, lithographic or flexographic; the or each printing plate may be prepared by a generally conventional process, such as screening.
  • The polymer which is printed according to the invention may be in any suitable physical form, such as in the form of a 3-dimensional moulded article or in laminar form (such as a film, sheet, coating or textile fabric).
  • By way of example, when the polymer is in the form of a film, sheet or moulded article, it may be made of a thermoplastic polymer, such as a polyester, nylon, polypropylene, polystyrene (including high impact polystyrene), an acrylic polymer, a polycarbonate,polyvinyl chloride, a cellulosic polymer, or a thermoset polymer such as an alkyd, an unsaturated polyester, an epoxy resin, a phenoplast or an aminoplast. The polymer may, when in the form of a moulded article, contain conventional reinforcement, such as, for example, glass fibres.
  • Such polymers may also be used in the method according to the invention in the form of a coating on, for example, wood, hardboard, chipboard, laminated plastics, metals (such as etched metals or anodised aluminium) or ceramics.
  • When the polymer is in the form of a coating, it may have been applied, for example, by spraying (e.g. electrostatic spraying) or curtain coating; the coating may be a stoved coating. When the substrate is a ceramic article (such as a ceramic tile),curtain coating is preferred, whereas when the substrate is a metal, electrostatic spraying is preferred.
  • When the polymer printed according to the present invention is a textile, it may be, for example, of polyamide, polyester, and acrylic polymer, or polypropylene. In a modification of the process according to the invention, when the article being printed is a textile, then the polymer may comprise a natural polymer, in addition to, or instead of, a synthetic polymer. Examples of such natural polymers include wool and cotton textiles.
  • Such textiles may, for example, be in the form of woven fabric, knitted fabric, or even open mesh net.
  • The coloured inks used in the method according to the invention preferably comprise dyes or pigments in an oil or resin base; solvent free inks are sometimes preferred. Examples of suitable inks are available commercially from Coates Brothers under the designation Lithotex 137 17/220. Such inks have good colourfastness and are resistant to washing, perspiration, dry cleaning, rubbing and gas-fading.
  • When the polymer body to be printed is in laminar form and the printed design is applied to one surface thereof, in a particularly preferred embodiment, the other surface thereof is subjected to elevated temperature and pressure before or during application of the printed design (for example, by means of a heated press plate). The elevated temperature employed is preferably from 100 to 220°, more preferably 110 to 180°C. Higher temperatures in the above ranges can be employed when the polymer is relatively thermally stable (such as a polyurethane) or in the form of a coating on a thermally stable backing (such as PVC or a polyurethane on a thermally stable fabric backing).
  • The pressure employed may be from 1 to 400 psi. preferably from 50 to 200 psi. Lower pressures are generally employed for thinner polymer substrates and higher pressures for thicker substrates. For example, a pressure as low as 1 psi can be used when printing a very thin PVC film, such as one having a thickness as low as 12, or where low gloss is wanted.
  • In some cases, the polymer substrate can be laminated to another polymer layer at the same time as the printing process according to the invention is carried out. When the polymer is subjected (on its non-printed surface) to elevated temperature and pressure, the printing may be carried out by a transfer process as an alternative to the four-colour process described above.
  • A glossy finish can be applied to the print by the use of a glossy transfer -paper and/or by the use of glazing rollers.
  • When the polymer substrate is plasticised, the plasticiser should not be such as to allow too much migration of dye away from areas to be printed. Accordingly, when the polymer is PVC, it desirably is not plasticised by means of styrene-butadiene copolymer.
  • A polymer body which is printed according to the invention may act as a support for the printed design, the printed body being bonded to an article it is wished to decorate, either with the printed design on the polymer surface facing the article to be decorated (in which case the polymer would, of course, be transparent) or with another surface adhered to the final substrate.
  • It should be emphasised that the method according to the invention results in printing, not just on the surface, but penetration of dyes into the layer adjacent the surface, making the resulting printed designs more permanent than those obtained in prior processes (that is, the printed design cannot be erased by solvent action or mechanical abrasion without destruction of the polymer surface).
  • In order that the present invention may be more fully understood, the following Examples are given by way of illustration only.
    • Example 1
  • One surface of unsupported PVC film was heated by a heated press plate at 110°C for a dwell time of 80 seconds and a pressure of 200 psi, and the other surface thereof was printed by a four-colour printing process. Excellent colour reproduction and print clarity was obtained.
    • Example 2
  • Example 1 was repeated using a dwell time of 50 seconds and a pressure of 100 psi, the printing being lithographic using two colours. Good colour reproduction and print clarity was obtained.
    • Example 3
  • One surface of unsupported PVC film was heated by a heated press plate at 110°C for a dwell time of 40 seconds and a pressure of 100 psi, and the other surface thereof was gravure printed in three colours to form a checked pattern. Excellent colour reproduction and print clarity was obtained.
    • Example 4
  • One surface of unsupported PVC film was heated by a heated press plate at 150°C for a dwell time of 30 seconds and a pressure of 100 psi. The other surface was screen printed in multiple colours; excellent colour reproduction and print clarity were obtained.
    • Example 5
  • Example 1 was repeated. using a temperature of 160°C and a dwell time of 40 seconds; similar results were obtained.
    • Example 6
  • One surface of rigid PVC (of the type and thickness used for credit cards) was pressed by means of a press plate at 140°C for a dwell time of 30 seconds under a pressure of 1 psi and then the other surface was printed as in Example 1;similar results were obtained.
    • Examples 7 and 8
  • PVC coated cotton fabric was pressed on the cotton surface by means of a press plate at110°C for 50 seconds and 40 seconds, respectively, using a pressure of 100 psi. The other surface was then printed as in Example 1; similar results were obtained.

Claims (7)

1. A method of printing a coloured design on a polymer body, in which the printed design penetrates into the surface of said polymer body such that it cannot be erased by solvent action or mechanical abrasion without destruction of said surface.
2. A method according to claim 1, which is a four-colour printing process.
3. A method according to claim 1 or 2 wherein the polymer body is in laminar form and the printed design is applied to one surface thereof, in which the other surface thereof is subjected to elevated temperature and pressure before or during application of said printed design.
4. A method according to claim 3, in which said elevated temperature is 100 to 220°C
5. A method according to claim 3 or 4. in which said pressure is from 50 to 200 psig.
6. A method according to any of claimsl to 5, in which said polymer is polyvinyl chloride.
7. A method according to claim 6, in which the polyvinyl chloride is in the form of a sheet or film, or a coating on a fabric.
EP84301290A 1983-02-28 1984-02-28 Printing process Withdrawn EP0121323A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8305497A GB8305497D0 (en) 1983-02-28 1983-02-28 Printing process

Publications (1)

Publication Number Publication Date
EP0121323A1 true EP0121323A1 (en) 1984-10-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP84301290A Withdrawn EP0121323A1 (en) 1983-02-28 1984-02-28 Printing process

Country Status (4)

Country Link
EP (1) EP0121323A1 (en)
AU (1) AU2579784A (en)
GB (1) GB8305497D0 (en)
WO (1) WO1984003257A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH662787A5 (en) * 1984-12-19 1987-10-30 Teca Print Ag Method and device for producing a print on an object, for example a key body
WO1989000922A1 (en) * 1987-07-24 1989-02-09 Keith Gifford Harlan Hooper Printing process
EP0319150A1 (en) * 1987-11-16 1989-06-07 Polyplastics Co. Ltd. Process for printing characters or the like on a thermoplastic resin molding
EP0265139A3 (en) * 1986-10-15 1989-10-18 Polyplastics Co. Ltd. Impregnation-printed moulded article
EP0340640A1 (en) * 1988-05-03 1989-11-08 Onorato Fedon Method for obtaining drawings of various chromatic shades particularly on plastic sheets
WO1990005640A1 (en) * 1988-11-18 1990-05-31 The De La Rue Company Plc Imaging plastics articles
EP0310384A3 (en) * 1987-10-02 1990-10-03 RAYCHEM CORPORATION (a Delaware corporation) Polyolefin article having permanent indicia thereon
EP0475460A3 (en) * 1985-01-23 1992-04-08 Minnesota Mining And Manufacturing Company Directly printable tape with novel release coating
EP0411152A4 (en) * 1989-02-20 1992-06-24 Dai Nippon Insatsu Kabushiki Kaisha Decorative sheet and method of production thereof

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2236754A (en) * 1939-06-24 1941-04-01 Shellmar Products Co Printing transparent material
GB600999A (en) * 1945-12-07 1948-04-23 William Elliott Frew Gates Printed sheet materials
FR1365679A (en) * 1962-08-09 1964-07-03 Pirelli Plast Societa Per Azio Method and apparatus for printing decorative designs or inscriptions on plastic sheets
GB1047619A (en) * 1963-08-22 1966-11-09 Nat Distillers Chem Corp Method for printing on polyolefin extrusion coated substrates
US3519466A (en) * 1965-07-15 1970-07-07 Toyo Kako Co Ltd Method for color printing thermoplastic or rubber articles
DE2315873A1 (en) * 1972-05-23 1973-12-06 Daetwyler Ag Printing polyolefin surfaces - with ink contg pigment, polyolefin polyolefin resin and hydrocarbon
FR2279559A1 (en) * 1974-07-22 1976-02-20 Ato Chimie Printing thermoplastics esp extruded tubes - by applying soln of dye to preheated plastics
FR2318193A1 (en) * 1975-07-18 1977-02-11 Ozalid Group Holdings Ltd Transfer dyeing of polymer films - using sublimeable dispersion dyes
WO1981003462A1 (en) * 1980-06-03 1981-12-10 Laube R Method and device for colouring band like objects and objects obtained thereby
DE3021022A1 (en) * 1980-06-03 1981-12-10 CP-Components Kunststoffbauteile GmbH, 8225 Traunreut Transparent ski facing printed with legend - using ink contg. polyurethane and applied hot to effect penetration

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2236754A (en) * 1939-06-24 1941-04-01 Shellmar Products Co Printing transparent material
GB600999A (en) * 1945-12-07 1948-04-23 William Elliott Frew Gates Printed sheet materials
FR1365679A (en) * 1962-08-09 1964-07-03 Pirelli Plast Societa Per Azio Method and apparatus for printing decorative designs or inscriptions on plastic sheets
GB1047619A (en) * 1963-08-22 1966-11-09 Nat Distillers Chem Corp Method for printing on polyolefin extrusion coated substrates
US3519466A (en) * 1965-07-15 1970-07-07 Toyo Kako Co Ltd Method for color printing thermoplastic or rubber articles
DE2315873A1 (en) * 1972-05-23 1973-12-06 Daetwyler Ag Printing polyolefin surfaces - with ink contg pigment, polyolefin polyolefin resin and hydrocarbon
FR2279559A1 (en) * 1974-07-22 1976-02-20 Ato Chimie Printing thermoplastics esp extruded tubes - by applying soln of dye to preheated plastics
FR2318193A1 (en) * 1975-07-18 1977-02-11 Ozalid Group Holdings Ltd Transfer dyeing of polymer films - using sublimeable dispersion dyes
WO1981003462A1 (en) * 1980-06-03 1981-12-10 Laube R Method and device for colouring band like objects and objects obtained thereby
DE3021022A1 (en) * 1980-06-03 1981-12-10 CP-Components Kunststoffbauteile GmbH, 8225 Traunreut Transparent ski facing printed with legend - using ink contg. polyurethane and applied hot to effect penetration

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH662787A5 (en) * 1984-12-19 1987-10-30 Teca Print Ag Method and device for producing a print on an object, for example a key body
EP0475460A3 (en) * 1985-01-23 1992-04-08 Minnesota Mining And Manufacturing Company Directly printable tape with novel release coating
EP0265139A3 (en) * 1986-10-15 1989-10-18 Polyplastics Co. Ltd. Impregnation-printed moulded article
WO1989000922A1 (en) * 1987-07-24 1989-02-09 Keith Gifford Harlan Hooper Printing process
EP0310384A3 (en) * 1987-10-02 1990-10-03 RAYCHEM CORPORATION (a Delaware corporation) Polyolefin article having permanent indicia thereon
EP0319150A1 (en) * 1987-11-16 1989-06-07 Polyplastics Co. Ltd. Process for printing characters or the like on a thermoplastic resin molding
EP0340640A1 (en) * 1988-05-03 1989-11-08 Onorato Fedon Method for obtaining drawings of various chromatic shades particularly on plastic sheets
WO1990005640A1 (en) * 1988-11-18 1990-05-31 The De La Rue Company Plc Imaging plastics articles
AU628892B2 (en) * 1988-11-18 1992-09-24 De La Rue Company Plc, The Imaging plastics articles
EP0411152A4 (en) * 1989-02-20 1992-06-24 Dai Nippon Insatsu Kabushiki Kaisha Decorative sheet and method of production thereof
US5296340A (en) * 1989-02-20 1994-03-22 Dai Nippon Insatsu Kabushiki Kaisha Decorative sheet and process for preparation thereof

Also Published As

Publication number Publication date
WO1984003257A1 (en) 1984-08-30
GB8305497D0 (en) 1983-03-30
AU2579784A (en) 1984-09-10

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18D Application deemed to be withdrawn

Effective date: 19860610

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HOOPER, KEITH GIFFORD HARLAN