WO1998055329A1 - Procede de transfert d'image sur un film de polyester et produit ainsi obtenu - Google Patents
Procede de transfert d'image sur un film de polyester et produit ainsi obtenu Download PDFInfo
- Publication number
- WO1998055329A1 WO1998055329A1 PCT/FR1998/001116 FR9801116W WO9855329A1 WO 1998055329 A1 WO1998055329 A1 WO 1998055329A1 FR 9801116 W FR9801116 W FR 9801116W WO 9855329 A1 WO9855329 A1 WO 9855329A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- image
- film
- layer
- polyester film
- heated
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F16/00—Transfer printing apparatus
-
- 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
- B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
- B41M5/035—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet by sublimation or volatilisation of pre-printed design, e.g. sublistatic
- B41M5/0358—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet by sublimation or volatilisation of pre-printed design, e.g. sublistatic characterised by the mechanisms or artifacts to obtain the transfer, e.g. the heating means, the pressure means or the transport means
Definitions
- the present invention relates to an image transfer method on a polyester film and the product thus obtained. More particularly, the present invention relates to an image transfer process on a polyester film, hereinafter called, for the sake of simplification, "polyester sandwich film", provided on one of its faces with a layer adhesive intended for fixing the film to a surface, in particular a glazing, and a protective film placed on the free surface of the adhesive in order to facilitate the handling of the polyester sandwich film.
- a polyester sandwich film provided on one of its faces with a layer adhesive intended for fixing the film to a surface, in particular a glazing, and a protective film placed on the free surface of the adhesive in order to facilitate the handling of the polyester sandwich film.
- This image transfer is conventionally carried out by calendering between two rollers, the inked side of the backing paper carrying the image being brought into contact with the polyester.
- one of the rollers is a metal roller which is heated to a temperature sufficient to cause sublimation of the inks and the other roller is a rubber roller, or coated with rubber.
- an apparatus comprising a heated metal roller on which an endless rubber or rubber-coated mat is supported.
- a machine of this type is, for example, the machine sold by the company "ASTECHNOLOGIES" under the name "ASTEX 7952".
- polyester sandwich films comprising on one of their faces a layer of adhesive intended to allow their fixing to a surface, for example a glazing, said adhesive being covered with a film known as peelable or peelable , which can be removed when using the polyester sandwich film.
- the problem to be solved according to the invention was to use the polyester sandwich films in an image transfer process comprising hot contact and under pressure. Indeed, when polyester is used, for example on a glazing, it is imperative that the polyester sandwich film is homogeneous and of constant thickness. Any lack of uniformity results in distortions and distortions of the image that an observer perceives when looking at the glazing. If it is possible to prepare perfectly uniform sandwich polyester films, it is noted that, during an image transfer, the adhesive tends to migrate and to form folds; the sized film is therefore no longer uniform after image transfer.
- the image is transferred between a heated surface and an unheated surface, the latter being covered with a silicone polymer or polytetrafluoroethylene and, optionally, it is placed against the film. peelable, at the time of transfer, a heat-resistant interlayer paper.
- the present invention therefore relates to an image transfer method in which an image printed on a support is brought into contact, under pressure and under heat, using sublimable ink (s). and a polyester film, this contact being made between a heated surface and an unheated surface, characterized in that the polyester film, onto which the transfer is carried out, carries, on the side of the unheated surface, a layer of glue covered with a peelable film, the free surface of the peelable film being in contact with the unheated surface and that said unheated surface is coated with a layer of silicone polymer or of polytetrafluoroethylene.
- the support, on which the image is printed is advantageously paper.
- image any type of drawing, figurative or not, any type of inscription and any type of decoration.
- the unheated surface is particularly smooth, any deformation of the polyester sandwich film is avoided during image transfer.
- a heated surface is used, covered, like the unheated surface, with a layer of silicone polymer or of polytetrafluoroethylene.
- an intermediate paper which is introduced between the unheated surface and the peelable film. The presence of the paper gives, on contact, a smoother support on the unheated surface, which further avoids distortions.
- the use of interlayer paper is particularly advantageous when the image transfer is done by calendering between two rollers.
- an intermediate paper resistant to the temperatures used for image transfer that is to say generally between 150 and 250 ° C.
- the intermediate paper used is advantageously identical or similar to that used as the support of the image to be transferred.
- the polyester sandwich film is prepared in the following manner.
- a grade 0 polyester film is chosen, that is to say having a very uniform thickness and perfect transparency qualities.
- the polyester film can be colored.
- An adhesive is deposited on this film, either by calendering between two rollers rotating in opposite directions, or using a Meyer bar or a doctor blade.
- the adhesive is preferably in the form of a solution in a non-aqueous solvent, ethyl acetate and toluene being particularly suitable.
- the adhesive is more particularly an acrylic adhesive but it is also possible to use a dry adhesive which can be crosslinked with infrared or a solvent-free adhesive which can be crosslinked with ultraviolet.
- the peelable film is preferably a plastic film such as a film of poly (vinyl chloride), poly (vinyl butyrate), polyurethane, polyethylene and, more particularly, polyester.
- a plastic film such as a film of poly (vinyl chloride), poly (vinyl butyrate), polyurethane, polyethylene and, more particularly, polyester.
- said film In order for said film to be peelable or peelable, its face intended to be in contact with the adhesive layer is treated using a silicone. In fact, the presence of silicone reduces the adhesive force between the glue and the film.
- the mode of application of this silicone so as to obtain a very uniform layer: in fact, unevenness or reliefs present in the silicone layer would be printed in relief during the transfer of image in the layer of glue and the image obtained after transfer would be bad.
- the application of silicone by rotogravure using a roller called “diamond points" gives hardly sufficient results. It is therefore preferably carried out with more sophisticated techniques, such as vacuum evaporation or removal of material by electron gun.
- the image to be transferred is conventionally printed using inks, which can be sublimated at temperatures between 140 and 250 ° C. These images are generally printed on heat-resistant paper, for example paper of around 100 g / m 2 .
- the dimensions of the image are currently limited by the machines available: for example, on the aforementioned ASTEX 7952 machine, an image cannot be transferred over a width greater than 1.32 m.
- the image transfer takes place between the two plates of a press, one of the plates of which is metallic and heated to a temperature between 140 and 250 °. C, preferably between 140 and 180 ° C, the closing of the press being, for example, maintained for a time of about 20 to 200 seconds with a pressure of 0.2 to 0.3 x 10 5 Pa approximately.
- the image transfer is done by calendering between two rollers, one of the rollers being metallic and the other roller made of rubber or coated with rubber.
- the metal roller is heated to a temperature between 140 and 250 ° C, preferably between 180 and 210 ° C.
- the clamping pressure between the rollers is, for example, between 0.2 x 10 ⁇ and 0.3 x 10 ⁇ Pa.
- an apparatus comprising a metal cylinder which is heated and an endless carpet of rubber or rubber coated, the image transfer being carried out between said metal cylinder and said endless belt.
- the clamping pressure between the cylinder and the endless belt is, for example, between 0.2 x 10 ⁇ and 0.3 x 10 ⁇ Pa.
- the heated metal surface is advantageously coated with a thin film of silicone polymer or of polytetrafluoroethylene.
- the polyester sandwich film obtained therefore comprises, in order, a polyester film whose thickness is constant and generally between 23 and 300 ⁇ , on the free face from which an image has been transferred, a layer of glue of a thickness of between 5 and 15 ⁇ , generally of the order of 7 ⁇ , and a peelable film of thickness between 12 and 75 treated with a silicone on the side in contact with the glue of said layer of glue.
- This film is intended to be fixed after removing the peelable film on a surface of transparent rigid material: glass or hard plastic, such as a window, a car windshield, or the like, so as to give an image which will be seen through transparency through the glass.
- This film can be used in laminated glazing.
- FIG. 3 is a section of the polyester sandwich film obtained by the machine of Figure 1.
- the endless belt 1 passes over four parallel rollers 3a, 3b and 3ç, 3d and follows part of the outline of a metal cylinder 2 coated with a layer of 100 microns of polytetrafluoroethylene.
- a sandwich polyester film 9 from a reel 4 and a backing paper 10 (100 g / m 2 ) carrying an image from between the cylinder 2 and the carpet 1 are introduced. of a reel 5.
- the polyester sandwich film 9 and the backing paper 10 then pass between the carpet 1 and the cylinder 2, then the polyester sandwich film 9, onto which the image 16 has been transferred, is rewound onto the reel 6 and the image support paper 10 (no longer carrying an image) is rewound on the coil 7.
- the temperature of cylinder 2 is preferably between 140 and 250 ° C.
- the clamping pressure between the belt 1 and the cylinder 2 is approximately 0.25 x 10 ⁇ Pa: it is adjusted by a cylinder.
- the contact time is generally between 20 and 200 seconds.
- an interlayer paper 8 identical to the backing paper 10 (but without image) passes between the carpet 1 and the polyester sandwich film 9: it is stored on a first roll 11, rewound on a second roll 12 and can be reused several times.
- EXAMPLE The machine shown in the drawing is used.
- a polyethylene glycol terephthalate in the form of a film 50 ⁇ m thick is used as the polymer.
- a layer of an acrylic adhesive corresponding to the commercial reference "DURO-TAK 373.0037” is deposited on one side of this film, said adhesive including as solvent ethyl acetate, ethanol, 2-propanol and heptane.
- the adhesive layer deposited has a thickness of 7 ⁇ ; the deposit is made by a Meyer bar.
- the film thus glued is dried in a hot air tunnel to evaporate the solvents and a peelable film consisting of a polyester silicone film with a thickness of 12 ⁇ is then positioned on the glued side.
- the deposition of silicone on the peelable film is carried out by crosslinking hot or with ultraviolet light, or even by means of an electron gun.
- peelable film is commercially available under the reference "PET 23 VI FSI 74 P" supplied by the company REXOR or "PET 092.50.50 / AH 2000" supplied by the company DOUGLAS HANDON.
- the installation of the peelable film completes the production of the polyester sandwich film without image.
- a 100 g / m 2 paper for electrostatic ink available under the commercial reference “REXAM 100” is used as the support.
- the inks used are supplied by XEROS under the reference “DGT 81".
- the image transfer is carried out in a machine as shown in the drawing with a pressure of 4.5 x 10 ⁇ Pa between the cylinder 2 and the endless belt 1.
- the temperature of the cylinder 2 is 154 ° C.
- the duration of the contact between the polyester sandwich film and the cylinder 2 is 1 min.
- the cylinder 2 is coated with a 2 mm layer of a commercially available silicone polymer under the name "COVISIL 9760" supplied by the company GESIL or "VS 292" supplied by the company REVEYRON.
- the endless belt 1 has a coating of the same kind as the cylinder 2 with a thickness of 2 mm.
- the polyester sandwich film obtained in step 3 is fixed to a window pane, which has been checked beforehand for any optical defect.
- the polyester sandwich film is spread out carefully so as to avoid the formation of folds.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98928422A EP0915762A1 (fr) | 1997-06-04 | 1998-06-03 | Procede de transfert d'image sur un film de polyester et produit ainsi obtenu |
AU80254/98A AU8025498A (en) | 1997-06-04 | 1998-06-03 | Method for transferring an image on a polyester film and resulting product |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR97/06895 | 1997-06-04 | ||
FR9706895A FR2764238B1 (fr) | 1997-06-04 | 1997-06-04 | Procede de transfert d'image sur un film de polyester et produit ainsi obtenu |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998055329A1 true WO1998055329A1 (fr) | 1998-12-10 |
Family
ID=9507588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1998/001116 WO1998055329A1 (fr) | 1997-06-04 | 1998-06-03 | Procede de transfert d'image sur un film de polyester et produit ainsi obtenu |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0915762A1 (fr) |
AU (1) | AU8025498A (fr) |
CA (1) | CA2262591A1 (fr) |
FR (1) | FR2764238B1 (fr) |
WO (1) | WO1998055329A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113022108A (zh) * | 2021-02-26 | 2021-06-25 | 王美华 | 一种用于防伪标签生产可多次往复式印胶的装置 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2192922B1 (es) * | 2001-01-26 | 2005-02-16 | Desarrollos De Impresion S.L. | Procedimiento de impresion sobre superficies no porosas. |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2105783A5 (en) * | 1970-09-24 | 1972-04-28 | Thermacrome Ltd | Trace printing machine - with a resilient pad to extend the hot transfer zone |
US4052935A (en) * | 1975-11-12 | 1977-10-11 | Minnesota Mining And Manufacturing Company | Printing device |
US4161563A (en) * | 1977-03-21 | 1979-07-17 | Transfertex Thermodruck-System Gmbh | Printed textile web material |
WO1985005324A1 (fr) * | 1984-05-11 | 1985-12-05 | Amp Incorporated | Procede de teinture d'un substrat flexible polymere continu et produits obtenus a partir dudit procede |
WO1991008907A1 (fr) * | 1989-12-08 | 1991-06-27 | Robert William Wilson | Procede et moyens de decoration d'un substrat |
WO1995025635A1 (fr) * | 1994-03-24 | 1995-09-28 | Sublistatic International | Dispositif d'impression de tissus en fibres vegetales a partir d'une bande de papier transfert |
-
1997
- 1997-06-04 FR FR9706895A patent/FR2764238B1/fr not_active Expired - Fee Related
-
1998
- 1998-06-03 EP EP98928422A patent/EP0915762A1/fr not_active Withdrawn
- 1998-06-03 WO PCT/FR1998/001116 patent/WO1998055329A1/fr not_active Application Discontinuation
- 1998-06-03 AU AU80254/98A patent/AU8025498A/en not_active Abandoned
- 1998-06-03 CA CA 2262591 patent/CA2262591A1/fr not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2105783A5 (en) * | 1970-09-24 | 1972-04-28 | Thermacrome Ltd | Trace printing machine - with a resilient pad to extend the hot transfer zone |
US4052935A (en) * | 1975-11-12 | 1977-10-11 | Minnesota Mining And Manufacturing Company | Printing device |
US4161563A (en) * | 1977-03-21 | 1979-07-17 | Transfertex Thermodruck-System Gmbh | Printed textile web material |
WO1985005324A1 (fr) * | 1984-05-11 | 1985-12-05 | Amp Incorporated | Procede de teinture d'un substrat flexible polymere continu et produits obtenus a partir dudit procede |
WO1991008907A1 (fr) * | 1989-12-08 | 1991-06-27 | Robert William Wilson | Procede et moyens de decoration d'un substrat |
WO1995025635A1 (fr) * | 1994-03-24 | 1995-09-28 | Sublistatic International | Dispositif d'impression de tissus en fibres vegetales a partir d'une bande de papier transfert |
Non-Patent Citations (1)
Title |
---|
J.M. MURPHY ET AL.: "Vacuum tranfer printing of Carpets", TEXTILE CHEMIST AND COLORIST., vol. 7, no. 11, November 1975 (1975-11-01), NORT CAROLINA US, pages 38 - 41, XP002056146 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113022108A (zh) * | 2021-02-26 | 2021-06-25 | 王美华 | 一种用于防伪标签生产可多次往复式印胶的装置 |
CN113022108B (zh) * | 2021-02-26 | 2022-09-09 | 武汉瑞仕腾防伪科技有限公司 | 一种用于防伪标签生产可多次往复式印胶的装置 |
Also Published As
Publication number | Publication date |
---|---|
EP0915762A1 (fr) | 1999-05-19 |
AU8025498A (en) | 1998-12-21 |
FR2764238B1 (fr) | 1999-08-13 |
FR2764238A1 (fr) | 1998-12-11 |
CA2262591A1 (fr) | 1998-12-10 |
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