EP0599744B1 - Method for making a printed pattern - Google Patents
Method for making a printed pattern Download PDFInfo
- Publication number
- EP0599744B1 EP0599744B1 EP19930420457 EP93420457A EP0599744B1 EP 0599744 B1 EP0599744 B1 EP 0599744B1 EP 19930420457 EP19930420457 EP 19930420457 EP 93420457 A EP93420457 A EP 93420457A EP 0599744 B1 EP0599744 B1 EP 0599744B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ink
- inked
- base material
- areas
- patterns
- 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.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/06—Veined printings; Fluorescent printings; Stereoscopic images; Imitated patterns, e.g. tissues, textiles
Definitions
- the present invention relates to a method of producing one or more patterns printed on a support.
- This method can in particular be used to print different patterns on a dashboard of a motor vehicle, intended to be illuminated or not from the rear, such as, for example, patterns indicating the different possible positions of a control button.
- the ink is applied to the support, so that its contours merge with those of the pattern to be produced.
- Several inks of different colors can be applied.
- the ink After application, the ink has a thickness which can vary from 0.5 to 50 microns.
- a thickness which can vary from 0.5 to 50 microns.
- This recess is most of the time not embarrassing in practice since it merges with the contours of the pattern shown, and is therefore not perceptible to the naked eye due to the contrast existing between the inked areas and the areas not inked from the support.
- a particular technique consists in applying to the entire support 2, after inking, a uniform layer 4 of opaque paint.
- the contours of the inked zone or zones draw the pattern or patterns to be produced and the opaque layer 4 completely covers them, the pattern being made apparent by transparency by means of the lighting in the background of the support 2, which is then transparent or translucent.
- the offset 1 existing between the surface 2a of the support 2 and of the ink 3 is reproduced at the level of the surface of the paint and the step 5 thus formed becomes visible to the naked eye since there is no longer any color contrast at its level.
- the contours of the inked zone or zones also draw the pattern or patterns to be produced and the opaque layer 4 is intended to be eroded or attacked by chemical, mechanical, ultrasonic or thermal action, in particular by means of a laser. , to discover the ink or inks 3 covered by said opaque layer 4.
- the step 1 existing between the surface 2a of the support 2 and the upper face of the ink 3 becomes visible to the naked eye.
- the present invention aims to remedy all of these drawbacks.
- the process to which it relates in which, in a known manner, ink is first applied to the support and then a layer of paint on the inked surface of the support, consists in applying ink gradually decreasing its quantity at the periphery of the inked area (s).
- the abovementioned setback between the ink and the support is progressive and invisible to the naked eye, so that the surface obtained appears to the user as being smooth and uniform, without any particular setback.
- Illumination in the background of the support can be carried out to reveal the pattern delimited by the ink.
- the paint When the paint is intended to be attacked or eroded to reveal the ink (s) deposited on the support, it is no longer necessary to make the contours of the inked area (s) coincide with those of the motif (s).
- the contours of the inked areas can, therefore, extend beyond those of the pattern or patterns, while being invisible to the naked eye.
- the erosion zones may have smaller dimensions than the inked zones and not be positioned in a perfectly precise manner with respect to them. The implementation of this kind of process is greatly facilitated and the visual appearance of the patterns obtained is perfect.
- the peripheral parts of two contiguous inked zones that is to say the parts of the inked zones in which the quantity of ink decreases, overlap, so that the ink remains substantially of constant thickness from one inked area to another.
- any separation between the inked face of the support and the upper face of the inked areas is eliminated.
- FIGS. 2 and 3 represent, by way of nonlimiting examples, a support comprising a printed pattern obtained according to the process which it concerns, in section and on a very enlarged scale.
- the ink 3 is applied by gradually decreasing its quantity at the periphery of the inked areas.
- step 1 between the ink 3 and the support 2 is progressive and invisible to the naked eye, so that the surface obtained appears to the user as being smooth and uniform, without any particular step.
- the background lighting of the support 1 can be carried out to reveal the pattern delimited by the ink 3.
- the paint 4 When the paint 4 is intended to be attacked or eroded to reveal the ink (s) 3 deposited on the support 2, it is no longer necessary to make the contours of the inked zone (s) coincide with those of the pattern (s).
- the contours of the inked areas can, therefore, extend beyond those of the pattern or patterns, being invisible to the naked eye. It is therefore no longer necessary to make the limits 6 of the erosion zones perfectly coincide with the edges of the inked zone (s), taking into account the invisibility of the recess 5. It follows that the zones of erosion may have smaller dimensions than the inked areas, as shown in Figure 2, and not be positioned perfectly precisely in relation to them. The implementation of the process is greatly facilitated and the visual appearance of the patterns obtained is perfect.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Textile Engineering (AREA)
- Vascular Medicine (AREA)
- Printing Methods (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
La présente invention concerne un procédé de réalisation d'un ou plusieurs motifs imprimés sur un support. Ce procédé est notamment utilisable pour imprimer différents motifs sur un tableau de bord de véhicule automobile, destinés à être éclairés ou non par l'arrière, tels que, par exemple, des motifs indiquant les différentes positions possibles d'un bouton de commande.The present invention relates to a method of producing one or more patterns printed on a support. This method can in particular be used to print different patterns on a dashboard of a motor vehicle, intended to be illuminated or not from the rear, such as, for example, patterns indicating the different possible positions of a control button.
Selon les techniques traditionnelles de tampographie ou de sérigraphie, l'encre est appliquée sur le support, de manière à ce que ses contours se confondent avec ceux du motif à réaliser. Plusieurs encres de couleurs différentes peuvent être appliquées.According to traditional pad printing or screen printing techniques, the ink is applied to the support, so that its contours merge with those of the pattern to be produced. Several inks of different colors can be applied.
Après application, l'encre présente une épaisseur pouvant varier de 0,5 à 50 microns. Il en résulte, comme cela apparaît sur la figure 1 du dessin annexé, l'existence d'un décrochement 1 entre la face 2a du support 2 et la face supérieure 3a de l'encre 3, d'une hauteur équivalente.After application, the ink has a thickness which can vary from 0.5 to 50 microns. As a result, as appears in FIG. 1 of the appended drawing, the existence of a recess 1 between the face 2a of the
Ce décrochement n'est la plupart du temps pas gênant en pratique puisqu'il se confond avec les contours du motif représenté, et n'est donc pas perceptible à l'oeil nu du fait du contraste existant entre les zones encrées et les zones non encrées du support.This recess is most of the time not embarrassing in practice since it merges with the contours of the pattern shown, and is therefore not perceptible to the naked eye due to the contrast existing between the inked areas and the areas not inked from the support.
Une technique particulière consiste à appliquer sur l'ensemble du support 2, après encrage, une couche uniforme 4 de peinture opaque.A particular technique consists in applying to the
Selon une première possibilité, les contours de la ou des zones encrées dessinent le ou les motifs à réaliser et la couche opaque 4 les recouvre entièrement, le motif étant rendu apparent par transparence au moyen de l'éclairage en arrière-plan du support 2, qui est alors transparent ou translucide.According to a first possibility, the contours of the inked zone or zones draw the pattern or patterns to be produced and the
Avec cette technique, le décrochement 1 existant entre la surface 2a du support 2 et de l'encre 3 est reproduit au niveau de la surface de la peinture et le décrochement 5 ainsi formé devient visible à l'oeil nu puisqu'il n'existe plus de contraste de couleur à son niveau.With this technique, the offset 1 existing between the surface 2a of the
Ceci affecte l'aspect visuel des motifs obtenus.This affects the visual appearance of the patterns obtained.
Selon une deuxième possibilité, les contours de la ou des zones encrées dessinent également le ou les motifs à réaliser et la couche opaque 4 est destinée à être érodée ou attaquée par action chimique, mécanique, ultrasonique ou thermique, notamment au moyen d'un laser, pour découvrir la ou les encres 3 que recouvre ladite couche opaque 4.According to a second possibility, the contours of the inked zone or zones also draw the pattern or patterns to be produced and the
Avec cette technique également, le décrochement 1 existant entre la surface 2a du support 2 et la face supérieure de l'encre 3 devient visible à l'oeil nu. Pour remédier à cet inconvénient, il est nécessaire de faire parfaitement coïncider les limites des zones où s'exerce l'érosion de la peinture, matérialisées par les traits 6, avec les bords des zones encrées, afin que le contraste créé entre la peinture 4 et l'encre 3 permette de masquer le décrochement 5. Ceci implique une grande précision de positionnement relatif de ces zones, difficile à réaliser en pratique. A défaut de ce parfait positionnement, les supports obtenus sont inexploitables.Also with this technique, the step 1 existing between the surface 2a of the
La présente invention vise à remédier à l'ensemble de ces inconvénients.The present invention aims to remedy all of these drawbacks.
A cette fin, le procédé qu'elle concerne, dans lequel, de manière connue, on applique tout d'abord de l'encre sur le support et, ensuite, une couche de peinture sur la surface encrée du support, consiste à appliquer l'encre en diminuant progressivement sa quantité à la périphérie de la ou des zones encrées.To this end, the process to which it relates, in which, in a known manner, ink is first applied to the support and then a layer of paint on the inked surface of the support, consists in applying ink gradually decreasing its quantity at the periphery of the inked area (s).
Ainsi, le décrochement précité entre l'encre et le support est progressif et invisible à l'oeil nu, de sorte que la surface obtenue apparaît à l'utilisateur comme étant lisse et uniforme, sans décrochement particulier.Thus, the abovementioned setback between the ink and the support is progressive and invisible to the naked eye, so that the surface obtained appears to the user as being smooth and uniform, without any particular setback.
L'éclairage en arrière-plan du support peut être réalisé pour faire apparaître le motif délimité par l'encre.Illumination in the background of the support can be carried out to reveal the pattern delimited by the ink.
Lorsque la peinture est destinée à être attaquée ou érodée pour laisser apparaître la ou les encres déposées sur le support, il n'est plus nécessaire de faire coïncider les contours de la ou des zones encrées avec ceux du ou des motifs. Les contours des zones encrées peuvent, par conséquent, s'étendre au-delà de ceux du ou des motifs, tout en étant invisibles à l'oeil nu. Ainsi, il n'est plus nécessaire de faire parfaitement coïncider les limites des zones d'érosion avec les bords de la ou des zones encrées, compte tenu de l'invisibilité du décrochement. Il en résulte que les zones d'érosion peuvent avoir des dimensions plus réduites que les zones encrées et n'être pas positionnées de manière parfaitement précise par rapport à elles. La mise en oeuvre de ce genre de procédé en est grandement facilitée et l'aspect visuel des motifs obtenus est parfait.When the paint is intended to be attacked or eroded to reveal the ink (s) deposited on the support, it is no longer necessary to make the contours of the inked area (s) coincide with those of the motif (s). The contours of the inked areas can, therefore, extend beyond those of the pattern or patterns, while being invisible to the naked eye. Thus, it is no longer necessary to perfectly coincide the limits of the erosion zones with the edges of the inked zone or zones, taking into account the invisibility of the recess. As a result, the erosion zones may have smaller dimensions than the inked zones and not be positioned in a perfectly precise manner with respect to them. The implementation of this kind of process is greatly facilitated and the visual appearance of the patterns obtained is perfect.
Avantageusement, lorsque plusieurs encres doivent être déposées sur le support, les parties périphériques de deux zones encrées contiguës, c'est-à-dire les parties des zones encrées dans lesquelles la quantité d'encre diminue, se chevauchent, de telle sorte que l'encre reste sensiblement d'épaisseur constante d'une zone encrée à l'autre. Ainsi, tout décrochement entre la face encrée du support et la face supérieure des zones encrées est supprimé.Advantageously, when several inks are to be deposited on the support, the peripheral parts of two contiguous inked zones, that is to say the parts of the inked zones in which the quantity of ink decreases, overlap, so that the ink remains substantially of constant thickness from one inked area to another. Thus, any separation between the inked face of the support and the upper face of the inked areas is eliminated.
La variation de l'épaisseur de l'encre peut être obtenue :
- soit par un dépôt d'encre qui va en s'amincissant, ce qu'il est possible d'obtenir par la technique de la tampographie ou en sérigraphie avec un cliché à profondeur variable, ou
- soit par une impression tramée, c'est-à-dire réalisée sous la forme d'une juxtaposition de petites surfaces imprimées imbriquées avec des surfaces non imprimées, dont le rapport surfaces imprimées/surface de la zone considérée diminue progressivement, de 100 % dans une zone totalement imprimée à 0 % dans une zone non imprimée au fur et à mesure que l'on s'éloigne des bords du motif.
- either by an ink deposit which is becoming thinner, which it is possible to obtain by the technique of pad printing or in serigraphy with a plate with variable depth, or
- either by a half-tone print, that is to say produced in the form of a juxtaposition of small printed surfaces nested with unprinted surfaces, the ratio of printed surfaces to surface of the area considered gradually decreases, from 100% in a fully printed area to 0% in an unprinted area as we go away from the edges of the pattern.
De toute façon, l'invention sera bien comprise à l'aide de la description qui suit, en référence au dessin schématique annexé dont les figures 2 et 3 représentent, à titre d'exemples non limitatifs, un support comprenant un motif imprimé obtenu selon le procédé qu'elle concerne, en coupe et à échelle très agrandie.In any case, the invention will be better understood with the aid of the description which follows, with reference to the appended schematic drawing of which FIGS. 2 and 3 represent, by way of nonlimiting examples, a support comprising a printed pattern obtained according to the process which it concerns, in section and on a very enlarged scale.
En référence à la figure 2, il apparaît que l'encre 3 est appliquée en diminuant progressivement sa quantité à la périphérie des zones encrées.Referring to Figure 2, it appears that the
Ainsi, le décrochement 1 entre l'encre 3 et le support 2 est progressif et invisible à l'oeil nu, de sorte que la surface obtenue apparaît à l'utilisateur comme étant lisse et uniforme, sans décrochement particulier.Thus, the step 1 between the
L'éclairage en arrière-plan du support 1 peut être réalisé pour faire apparaître le motif délimité par l'encre 3.The background lighting of the support 1 can be carried out to reveal the pattern delimited by the
Lorsque la peinture 4 est destinée à être attaquée ou érodée pour laisser apparaître la ou les encres 3 déposées sur le support 2, il n'est plus nécessaire de faire coïncider les contours de la ou des zones encrées avec ceux du ou des motifs. Les contours des zones encrées peuvent, par conséquent, s'étendre au-delà de ceux du ou des motifs, en étant invisibles à l'oeil nu. Il n'est, dès lors, plus nécessaire de faire parfaitement coïncider les limites 6 des zones d'érosion avec les bords de la ou des zones encrées, compte tenu de l'invisibilité du décrochement 5. Il en résulte que les zones d'érosion peuvent avoir des dimensions plus réduites que les zones encrées, ainsi que cela apparaît sur la figure 2, et n'être pas positionnées de manière parfaitement précise par rapport à elles. La mise en oeuvre du procédé en est grandement facilitée et l'aspect visuel des motifs obtenus est parfait.When the
En référence à la figure 3, il apparaît que, lorsque plusieurs encres 3 de couleurs différentes doivent être déposées sur le support 2, les parties périphériques 3b de deux zones encrées contiguës, c'est-à-dire les parties des zones encrées dans lesquelles la quantité d'encre 3 diminue, se chevauchent, de telle sorte que l'encre 3 reste sensiblement d'épaisseur constante d'une zone encrée à l'autre. Ainsi, aucun décrochement n'existe entre la surface 2a du support 2 et la face supérieure de l'encre 3. Par conséquent, aucun décrochement n'apparaît au niveau de la peinture 4.With reference to FIG. 3, it appears that, when
Claims (5)
- A process for producing one or more printed patterns on a base material, in particular for a motor vehicle dashboard, in which, in a known manner:- firstly ink is applied locally to the base material,- then a coat of paint, which masks the inked areas, is applied to the inked surface of the base material, and- the pattern or patterns are made to appear,the process being characterized in that the ink is applied by progressively reducing the amount thereof applied to the periphery of the inked area or areas, so that the painted surface obtained appears to be, to the naked eye of the user, smooth and uniform, without any particular difference in height between the surface of the ink and the surface of the base material.. either by background lighting of the base material, in which case the contours of the inked area or areas show the pattern or patterns to be produced and the base material is transparent or translucent;. or by eroding or attacking the coat of paint, by chemical, mechanical, ultrasonic or thermal action, in particular by means of a laser, in order to reveal the ink or inks covering the coat of paint,
- A process according to Claim 1, in which the pattern or patterns are made to appear by eroding or attacking the coat of paint, characterized in that the ink is applied so that its contours extend beyond those of the pattern or patterns to be produced and in that the coat of paint is eroded or attacked on the areas having smaller dimensions than those of the inked areas.
- A process according to Claim 1 or Claim 2, characterized in that, when a plurality of inks (3) are to be deposited on the base material (2), the peripheral portions (3b) of two contiguous inked areas (3), that is to say the portions of these two inked areas in which the quantity of ink (3) is reduced, overlap, so that the ink (3) remains substantially of constant thickness from one inked area to the next.
- A process according to one of Claims 1 to 3, characterized in that the reduction in the quantity of ink is achieved by applying the ink in a screen-like manner, that is to say produced in the form of a juxtaposition of small printed surfaces interspersed with non-printed surfaces, whereof the ratio of printed surfaces/surface of the area in question is progressively reduced.
- A process according to one of Claims 1 to 3, characterized in that the reduction in the quantity of ink is achieved by depositing a layer of ink which gets thinner.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9214129 | 1992-11-19 | ||
| FR9214129A FR2698043A1 (en) | 1992-11-19 | 1992-11-19 | Procedure for revealing printed motif, e.g. on motor vehicle control |
| FR9216035 | 1992-12-28 | ||
| FR9216035A FR2698044B1 (en) | 1992-11-19 | 1992-12-28 | PROCESS FOR PRODUCING A PRINTED PATTERN. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0599744A1 EP0599744A1 (en) | 1994-06-01 |
| EP0599744B1 true EP0599744B1 (en) | 1997-04-09 |
Family
ID=26229905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19930420457 Expired - Lifetime EP0599744B1 (en) | 1992-11-19 | 1993-11-18 | Method for making a printed pattern |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0599744B1 (en) |
| DE (1) | DE69309619T2 (en) |
| FR (1) | FR2698044B1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2128105A (en) * | 1934-07-30 | 1938-08-23 | Norton Co | Relief print |
| IT1079661B (en) * | 1976-09-27 | 1985-05-13 | Gulf & Western Corp | PROCEDURE AND APPARATUS TO DECORATE MATERIALS IN SHEETS IN PARTICULAR THE CIGAR ENVELOPES TO SIMULATE THE APPEARANCE OF THE TOBACCO LEAF |
| DE3024393A1 (en) * | 1980-06-28 | 1982-01-21 | Letron GmbH, 8750 Aschaffenburg | Decorative paper with three=dimensional pattern - having feel and appearance of wood, formed by printing with dye contg. pref. amide wax reactant |
| US4409264A (en) * | 1981-04-01 | 1983-10-11 | Northern Engraving Corporation | Boss formation using low surface energy dams |
| JPS6262786A (en) * | 1985-09-12 | 1987-03-19 | Okura Ind Co Ltd | Manufacture of cubic decoration plate having deep color tone |
| JPH085245B2 (en) * | 1986-09-12 | 1996-01-24 | 大日本印刷株式会社 | Printed matter and manufacturing method thereof |
-
1992
- 1992-12-28 FR FR9216035A patent/FR2698044B1/en not_active Expired - Lifetime
-
1993
- 1993-11-18 DE DE1993609619 patent/DE69309619T2/en not_active Expired - Lifetime
- 1993-11-18 EP EP19930420457 patent/EP0599744B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2698044B1 (en) | 1996-12-13 |
| DE69309619D1 (en) | 1997-05-15 |
| FR2698044A1 (en) | 1994-05-20 |
| DE69309619T2 (en) | 1997-10-30 |
| EP0599744A1 (en) | 1994-06-01 |
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