FR2945371A1 - Support for use as e.g. advertising display, has upper face with reliefs conformed after printing multiple image, where image is formed of interlaced components alternately belonging to each of simple images and placed at level of reliefs - Google Patents

Abstract

The support (1) has an upper face comprising hollow and projecting reliefs conformed after printing a multiple image (5) on the support, where the support is made of cardboard, paper, plastic coated board, plastic coated paper, wood, plastic material, synthetic material or composite material. The multiple image is formed of a succession of interlaced simple image components printed on the support. The components alternately belong to each of simple images of the multiple image, and are placed on the upper face of the support at the level of the reliefs. The multiple image is printed on the support by screen printing, offset printing, onset printing, flexography, xerography or ink-jet printing. Independent claims are also included for the following: (1) a method for forming a multiple image on a support (2) a method for forming a support.

Description

The present invention relates to a non-transparent support on which is printed flat a multiple image formed of at least two different simple images, which support is shaped in relief after flat printing. This support makes it possible to see the images successively by changing the angle of observation or by making it move. The invention also relates to a method for flat printing a multiple image made from at least two single images and to subsequently conform to a suitable relief. A multiple image, also called dynamic image, is a composite image formed of several different simple images by an appropriate image processing, which appears different depending on the angle of incidence under which it is viewed. It makes it possible to observe successively and in isolation each of the simple images that compose it when one changes the angle of observation.

Multiple images thus make it possible, for example, to give a changing and dynamic character to an image, to create an animated scene or to display a message or new elements on a given image, whereas they are simply printed on a passive medium two-dimensional. Such images attract the eye with their originality and their playful and attractive character. They are particularly appreciated in the field of advertising and communication where they offer great creative possibilities. However, the current supports of these dynamic images have many drawbacks that greatly limit their use. To obtain such dynamic images, the current technique consists in producing so-called lenticular supports. These supports are conventionally formed of the superposition of a base sheet

printed and a thick upper plate of transparent material whose outer face is shaped in a succession of juxtaposed curved linear shapes acting as a multitude of juxtaposed linear lenses. The base sheet is a flat sheet of adhesive paper on which at least two interlaced single images are printed. The base sheet is glued under the transparent top plate made of resin. It is observed through it by means of the linear lenses shaped on the surface, which allow, by optical effect, to successively see the different single images composing the multiple image during a visual scan modifying the angle d 'observation. The upper plate of these known lenticular supports is made from synthetic raw materials which are already relatively expensive in the raw state.

In addition, to obtain a satisfactory image rendering, the upper plate must have very thin linear lenses on its upper face, which requires very precise conformation techniques that generate high manufacturing costs. The finished product is therefore found in commerce at a high selling price which limits its application to high-end products. Advertising and communication professionals, although very interested in these multi-image media, face serious financial limitations for their large-scale use, let alone for producing temporary and / or large-scale products, such as posters or advertising displays for example. In addition, this type of support is rigid and can not be folded without being damaged, which generates

significant difficulties for the transport, handling and storage of large format media, for example imposing transport conditions similar to those used for glass plates. In addition, because of the use of a plastic plate, these lenticular supports are difficult to recycle and must be reprocessed at the end of life.

Thus, the high cost and the difficulties of transporting and reprocessing the current conventional so-called lenticular media limit their use to a few small applications. The object of the present invention is to remedy the main drawbacks of the supports of the state of the art by proposing a new multi-image carrier, which is cheaper, easily recyclable and which, depending on its thickness, can be rolled or folded without damage to facilitate its storage. or its transport.

It can thus be made in large format at low cost, for example for the production of posters or advertising displays, which perfectly meets the expectations of professionals in the field.

For this, the invention teaches a method of flat-printing a multiple image directly on one of the faces of a planar support, preferably in a cheap material, for example, but not exclusively, cardboard existing widespread in the field of packaging, or any equivalent or adapted material and proceed, after flat printing, a conformation or a relief by different means to obtain the expected effect.

More particularly, the invention relates to the process of forming a multiple image and printing directly on the upper face of the

plane support interlaced image portions from alternately at least two single images composing the multiple image, these parts are for example strips or other fragments or image components. In the case of juxtaposed linear strips, they appear according to the repetition pitch of the linear shapes which will be shaped later on the upper face of the support. The strips of each of the single images are printed flat, so as to obtain, after being placed in relief in parallel linear shapes and juxtaposed, a global vision of one of the single images composing the multiple image according to a certain angle of vision and vision. another of the single images composing the multiple image at a different viewing angle. The invention thus provides a support which has a multiple image composed of at least two different simple images that can be seen successively and in isolation by changing the angle of observation of the support or by moving it. According to a preferred variant of the invention, this support is shaped after printing in linear reliefs with at least two flanks or facets, arranged side by side and in a repetitive manner.

The multiple image, formed of a succession of interlaced strips alternately belonging to each of the single images that compose it, is found after conformation of the support on the upper face thereof at its linear reliefs. All the bands belonging to the same single image composing the multiple image are found on the same flank or facet of the linear reliefs. The invention also relates to a method for producing such a support comprising the following steps: cutting of each single image composing the image

multiple in parts or components of the same simple image for example in strips of width corresponding to that of the flank or the facet of the linear reliefs to be formed after printing on the support on which they must be; . composition of a global image interlaced by juxtaposition of the components, for example strips, originating from single images, these strips being intercalated alternately according to the alternation of the flanks or facets of the reliefs to be constituted on the support on which they must be; . reproduction by flat printing on the upper face of the support of the interlaced global image by calibrating its positioning so that each component is found on the corresponding side or facet (e) reliefs for example linear, which will be constituted later on the support ; . treatment before conformation with or without the interposition of a transparent protective film or the bonding or pressing thereof on the printing face; . conformation of the support according to the appropriate reliefs for example in juxtaposed linear projections. Other features and advantages of the invention will appear in the description which follows, given by way of example and accompanied by the drawings in which: Figure 1 is a top view in perspective of a support according to the invention with rounded linear reliefs, on which is printed flat a multiple image composed of two single images; . FIG. 2 represents in perspective the support of FIG. 1 seen from the right, at an angle

observation allowing only the vision of the first simple image; . FIG. 3 represents in perspective the support of FIG. 1 viewed from the left, according to an angle of observation allowing only the vision of the second simple image; . Figure 4 is a schematic cross-sectional view of the support of Figure 1, made in the area where was printed flat the multiple image; . Figures 5 to 9 are cross-sectional views of different relief variants of the support after printing; . Figure 10 is a schematic cross-sectional view of another support according to the invention trapezoidal linear reliefs made after printing, comprising a multiple image formed from three basic single images; . FIG. 11 schematically shows, by a succession of steps, the method according to the invention and in particular the allocation by various means. The present invention relates to the printing of a composite image on a plane support 1 and subsequently highlighted. This flat support 1 can be made of different materials and thicknesses depending on the nature and possibilities of the means used for the process of subsequent formation of the relief (s) 2.

This plane support 1 is subsequently embossed in the form of a relief support which will be designated as a shaped support 3. It is possible to choose as material from flat cardboard, paper or a sheet of plastic material or even a metal sheet, or even a composite material, wood or other. This is generally a fairly flexible subject that is relatively well

deform at non-elevated temperatures. If the plane support 1 has a certain rigidity, it can be used as it is otherwise, it is reported on a base plane 4 for its rigidification of the type panel, panel or other, providing the necessary rigidity, to form a set of the type poster to stick on a sign or a sign. According to the invention, a multiple image 5 is printed flat on the upper face 6 of the plane support 1. The multiple image 5 is composed in the basic variant of interlaced strips 7, 8, that is to say belonging alternately and respectively to two single images 9 and 10. The alternating pitch of the strips corresponds to that of linear projections 11 which will be shaped in the plane support 1 or made from it during the subsequent step of setting in relief. To achieve the shaped support 3 according to the invention, it is particularly advantageous to use a commercially available inexpensive material, for example cardboard which can after printing the composite image 5, become corrugated by a passage in a inverter 12.

The quality, thickness and physical properties of the plane support 1 can also be variable and diverse. It may be more or less absorbent, more or less transparent, more or less dense, more or less rigid, more or less flexible during a gentle heating. For a better understanding of the reader, there is shown in Figures 1 to 4 a first example of a shaped support 3 after embossing a support plane 1 on which is printed and then allocated a multiple image 5 composed of two simple images 9 and 10, the first image 9 representing a black apple and the second 10 a white apple.

In this example, the strips 7 belonging to the first image 9 are erected during the embossing operation to appear only on the left flanks 13 of the linear projections 11 or grooves 14 and the upright strips 8 belonging to the second image 10 to appear only on the right flanks 15 of these projections 11. Thus, as shown in Figure 2, when looking at the support 3 at an angle of observation grazing from the left, symbolized by the arrow 16 of the 2, we see only the first image 9 of the multiple image 5. And, when we look at the support at an angle of observation grazing from the right, symbolized by the arrow 17 of Figure 3, we see only the second image 10. It should be understood that the invention is not limited to a multiple image coming from only two simple images, but can be any depending on the material possibilities of the medium 3, the image pressure and means 12 of relief. When the reliefs 2, for example, linear of the support 3 made after flat printing, have more than two sides or facets, for example three 13, 15, 18, it is possible to produce multiple images composed of more than two single images. An example has been shown in FIG. 10. It is a plane support 1 which will be embossed to constitute a shaped support 3 with linear reliefs 2 in trapezoidal section, formed after flat printing of a composite multiple image. of three single images, respectively. The strips 7 belonging to the first image 9 come from the flat printing on linear zones which will become the left flanks 13 of the reliefs 2 with trapezoidal section, those 8 belonging to

in the second image 10 printed flat will become the lower facets 18 and upper 19 planes reliefs 2 with trapezoidal section, and those 20 belonging to the third image 21 printed only on the areas that will become the right sides 15 reliefs 2 trapezoidal section . A grazing vision coming from the left according to the left arrow 16 thus makes it possible to observe only the first image 9, a front view according to the central arrow 22 only the second image 10 and a grazing vision coming from the right according to the arrow of right 17 only the third image 21. It is also conceivable that the plane support 1 is printed in linear strips juxtaposed and then raised and made mobile by linear pivoting about their longitudinal axis, in the manner of the triangular section mobile panels of changing displays, each linear part serving as linear relief 2 for the realization of the multiple image 5. The shaped support 3 can also be animated so that an immobile observer can successively see all the single images 9, 10, 21 or part of them composing the multiple image 5 without having to move. According to the variants, the shaped support 3 may be mobile as a whole or only at one or more of its parts.

The formation of a multiple image according to the invention can also be combined with other optical effects such as, for example, the production of one or more images or parts of an image or images giving an impression of relief.

The method according to the invention for making a multiple image 5 on the plane support 1 and its subsequent release after flat printing is

now be described in more detail with reference to Figure 11. It begins by processing a first single image 9 by breaking it into component parts for example strips 7 to be part of the multiple image 5 to print. We proceed in the same way with the second single image 10 and so on with each of the single images to constitute the multiple image 5. This decomposition is carried out by the computer tool and adapted software. Each of the simple images 9 and 10 is cut according to a given program into strips 7 and 8 or other continuous or discontinuous component parts. The component parts of the simple images 9 and 10 are positioned and interleaved as a function of the arrangements and shapes of the relief 2 corresponding to the relief conformations that will be made subsequently with or in the plane support 1. The composite image 5 which is thus obtained in its definition flat, taking into account the subsequent allocation, is sent to a printer that prints on the support plane 1 according to its computer definition that takes into account all the parameters related to the result and the effect to obtain after allocation. It is also possible to use as plane support 1 a flexible and thin independent intermediate support, for example a sheet or a film which will be secured, glued or otherwise attached to the flat support 1 which will no longer be in this variant a printing medium. The set then becomes a composite plane support. Thus the reproduction of the interlaced overall image 5 is here a flat printing step on an independent sheet, this step being followed by a step of securing this independent sheet printed on the upper face 6 of the

plane support 1 before the relief or following the reliefs 2 for example linear of the shaped support 3, so that each band 7, 8, 20 is found on the sidewall 13, 15 or the corresponding facet 18 (e) reliefs 2. The chosen printer and the inks as well as all the parameters and the characteristics of printing and those of the support 1 are studied and developed to allow a relief by an adapted means 12 without altering, deteriorating or damaging or otherwise Negatively modify the image, its quality and its graphic rendering by subsequent highlighting operations. For example, offset, onset, screen printing, xerographic, flexographic or inkjet printing techniques may be mentioned. An ink fixing and mechanical protection treatment is then carried out in the form of a heating, a firing, a varnish and various chemical, mechanical, thermal or other appropriate treatments, to give the plane support 1 and the composite image 5 printed therein a better hold during its subsequent deformation while preserving the quality of printing. It is also possible to report, glue or press a film or a transparent sheet on the printed side or both sides of the plane support 1 before it is raised.

Next come the relief operations which are generally carried out by the passage in a shaper 12. It is a matter of conforming in a suitable manner the printed plane support 1 to arrive at giving it the shapes adapted to the desired locations , for example protrusions 11 and recesses 14, lines, grooves or longitudinal corrugations, but also

2 different reliefs and in other directions that will correspond to special effects. To do this, the most appropriate means are used among the existing means of which some non-exhaustive examples are described below. It is possible to use any means of the type pressing, stamping or thermoforming hot or cold statically or in advance of the support. This is to place the flat support 1, plate, sheet, film or other, in a mold 23 or on a counterfoil. The mold 23 will have at least one, but preferably two plates 24, 25, shaped in relief according to the contretype of the relief 2 that is to be obtained by deformation of the plane support 1, that is to say according to the characteristics of shapes. and position of all the components of this relief 2 for the desired effect. A press comes to apply hot or cold, according to a given pressure one of the plates 24 against the other 25 so as to deform the plane support 1 according to the relief 2 to obtain in order to achieve the shaped support 3 without affect the quality and graphics of the print. It is also possible to use calendering or embossing or an equivalent method by passing the support between two rollers 26, 27 having reliefs 2. Of course, this method is more limited in the possibilities of relief shapes 2 which are made by passing along the support between the rollers 26, 27. Another type of process for the formation of the reliefs 2 relates to the extrusion. After possibly having been heated but preferably moderately, the plane support 1 passes between the shapes of a die 28 in forced advance and guided along a channel 29 by a pusher and / or a shooter means.

This process often requiring a softening of the material is then exploitable only in special cases. Reliefs 2 can affect different shapes and even the most varied shapes. First of all, linear shapes such as those shown in FIGS. 4 to 10 may be mentioned. The linear reliefs 2 of the shaped support 3 may be different from the flutes 14 with rounded section of the first embodiment shown. Figures 5 to 8 give several non-limiting examples of other usable forms. It can thus be linear reliefs 2 with a rounded section 30 (FIG. 5), with a triangular section 31 (FIG. 6), with a rounded section with a flattened top 32 (FIG. 7) and with a trapezoidal section 33 (FIG. 8). Of course, the invention is not limited to a support 3 having a corrugated relief 2, or even a cardboard support. It extends on the contrary to all forms in succession of linear reliefs 2 having several flanks, flat, curved or faceted. Similarly, the ridge or the upper linear curved may be less pronounced, flattened or shaped table or plateau.

In addition to their shape, the flat supports 1 can also vary widely in their nature and physical and technical characteristics. Thus, the plane support 1 can be in different materials: synthetic, plastics, composites .., or in different materials: paper, cardboard, wood, cardboard or plasticized paper etc. It is also possible to envisage discontinuous linear relief forms. one or more times over part of their length.

It is also possible to envisage variations in the shape of the profiles on the width or the length of the image format, for example to give rise to

locally an additional image visible only at a certain angle of observation. Moreover, the embossing technique by pressing on a counterfoil makes it possible to obtain relief shapes 2 that are not necessarily linear. The transverse or oblique projections 11 which can be made in this way, provide the possibility of obtaining special effects of the kind that delay the appearance of certain zones or certain details of an image.

In addition, variations in the size and shape of the profile of the protrusions 11 or the recesses 14, whether they are local or local or over a whole height of image, offer numerous visual and visual possibilities. animation.

Obviously, the invention is not limited to the preferred embodiments described above and shown in the various figures, the skilled person can make many modifications and imagine other variants without departing from the scope and of the scope of the invention as defined by the claims.

Claims (18)

REVENDICATIONS1. A shaped carrier having a multiple image (5) composed of at least two different single images (9 or 10) which can be viewed successively and in isolation by changing the observation angle of the support, said shaped support (3) being characterized in that it comprises on its upper face (6) raised and recessed reliefs (2) shaped after printing on a plane support (1) of a multiple image (5), in that the multiple image ( 5), formed of a succession of component parts (7 or 8) of single images interleaved and printed on a plane support (1), simple image components which, alternately belonging to each of the single images (9 or 10) which compose it, are on the upper face (6) of the shaped support (3) at its reliefs (2) formed after printing. 2. Support according to claim 1 characterized in that it comprises on its upper face (6) reliefs (2) linear to at least two sides or facets (13 or 15) formed after printing, arranged side by side in a repetitive manner , in that the multiple image (5) formed of a succession of components or parts (7 or 8) of interlaced single images belonging alternately to each of the single images (9 or 10) that compose it, is on the upper face (6) of the shaped support (3) at its linear reliefs (2) and in that all the component parts (7 or 8) belonging to the same single image (9 or 10) forming the multiple image ( 5) are on the same flank (13 or 15) or facet reliefs (2) successive. 3. Multiple image carrier according to the preceding claim characterized in that the multiple image (5) is printed on the upper face (6) plane of the plane support (1). 4. Support according to any one of the preceding claims characterized in that the multiple image (5) is composed of two or three single images (9, 10, 21). 5. Support according to any one of the preceding claims 2 to 4 characterized in that the reliefs (2) linear are corrugations, grooves or linear reliefs with rounded section (30), triangular (31), rounded to vertex flattened (32) or trapezoidal (33). 6. Multiple image carrier according to any one of the preceding claims characterized in that it is cardboard, paper, cardboard or plasticized paper, wood, plastic, synthetic material or composite materials. 7. Multiple image carrier according to the preceding claim characterized in that it is made of cardboard which is subsequently corrugated by passing through an inverter (12). 8. multiple image carrier according to the preceding claim characterized in that it further comprises a base plane (4) secured after printing and conformation under the support in relief (3). 9. Multiple image medium according to any one of the preceding claims, characterized in that it is a poster or an advertising display. 10. Multiple image medium according to any one of the preceding claims, characterized in that it is fully or partially animated so that a stationary observer can successively see all the single images (9, 10, 21) composing the multiple image. (5). 11. A method of producing a multiple image on a support for observing multiple images (5) characterized in that each single image (9, 10, 21) from an electronic file is divided into parts or elementary components (7, 8, 20) and is each printed by its elementary parts or components (7, 8, 20) on a respective surface of a plane support (1), in that the plane support (1) is subsequently formed into relief according to shapes (2) projecting (11) and hollow (14) corresponding to the parts or components of the images composing the single images (9, 10, 21) so that the shaped support (3) viewed from a certain angle shows only one image (9, 10, 21) reconstructed by the eye while at another angle appears at least one other image (9, 10, 21) reconstructed by the eye from the printed visible parts (7, 8, 20) specific to the same image. 12. A method of producing a support (3) according to the preceding claim, characterized in that it comprises the following steps: dividing each single image (9, 10, 21) composing the multiple image (5) into single image components in the form of strips (7, 8, 20) of width corresponding to that of the sidewall (13, 15) or the facet (18) of the linear reliefs (2) of the support (3) on which they must be; . composition of a multiple global image (5) intertwined by juxtaposition of the bands coming from the single images, these strips (7, 8, 20) being intercalated alternately according to the alternation of the flanks (13, 15) or facets (18) of the reliefs linear (2) support (3) on which they must be; . printing by flat printing on the upper face (6) of the plane support (1) of the interlaced multiple global image (5) by calibrating it laterally so that each strip (7, 8, 20) is found on the sidewall (13). , 15) or the corresponding facet (18) (e) reliefs (2) for example linear that will be constituted later with the support (1); . prior treatment of protection of the support (1) or only of the printed face before conformation; . conformation of the support (1) according to the reliefs (2) suitable for example in linear projections (11) juxtaposed. 13. The method of claim 11 or 12 characterized in that the steps of cutting the single images (9, 10, 21) and composition of the overall interlaced image (5) are performed by means of a processing software d images. 14. Method according to any one of claims 11 to 13 characterized in that the step of reproducing the interlaced overall image (5) is a printing step on the upper face (6) of a plane support ( 1) which is then shaped according to the reliefs (2) desired. 15. The method of claim 12 characterized in that the step of reproducing the interlaced overall image (5) is a flat printing step on the upper face (6) of the plane support (1) before the formation of linear reliefs (2) and in that this step is followed by a step of shaping the support (1) which produces the linear reliefs (2) appropriately so that each band (7, 8, 20) is found on the flank (13, 15) or the facet (18) corresponding (e) linear reliefs (2) formed. 16. The method as claimed in claim 11, characterized in that the step of reproducing the interlaced global image (5) is a flat printing step on an independent sheet and in that this step is followed by a step of securing the independent sheet printed on the upper face (6) of the plane support (1) before embossing or on the shaped support (3) after the relief by following the linear reliefs (2) of the shaped support (3), so that each band (7, 8, 20) is found on the flank (13, 15) or the corresponding facet (18) (e) linear reliefs (2). 17. The method of claim 12, characterized in that each linear projection (11) formed after printing corresponds to two successive strips (7, 8) and are juxtaposed on each of the flanks (13, 15) of each projection (11). . 18. Method according to any one of claims 11 to 17, characterized in that the printing is performed by screen printing, offset, onset, flexography, xerography or inkjet.