FR2963274A1 - Method for assembling flexible and printed multi-strip ply that is used as false wall, involves utilizing marks for adjusting positioning between strips to limit space between image parts and favor correspondence between images - Google Patents

Abstract

The method involves arranging marking areas (12, 22) on a receiving face of image parts of strips (1, 2), where the areas comprise marks (13a, 13b, 23a, 23b). The strips are stacked with each other, so that the image parts face each other. The marks are utilized for adjusting positioning between the strips with respect to each other to limit a space between the image parts and favor correspondence between a reconstructed image and an original image after assembling the strips.

Description

SCR002-EN-94 TEXT REMOVAL RG / CL-CHG-AG Technical Area

The present invention relates to a method for assembling a flexible and printed multi-ply web.

Prior art

It is very common to assemble several strips of flexible material to form a flexible sheet of large dimensions. To obtain a printed multi-sheet web, it is possible to print the tablecloth after

assembling the strips or printing the strips, for example individually, before assembly. In the first case, it is difficult to obtain a good quality impression at the assembly area between the strips. It often happens that after printing it persists

a non-printed area of a few millimeters along the assembly area which makes the assembly area visible and affects the appearance of the web. In the second case, it is decisive to be able to wedge the strips to ensure good continuity between the printing zones provided for

the different areas. This step is tedious and there is no method to simplify it and make it more reliable. Presentation of the invention

The present invention aims to remedy these drawbacks by proposing a method for assembling a flexible and printed multi-ply web allowing to obtain simply and reliably a web comprising a printed reconstituted image close to the initial image. .

The invention relates to a method for assembling a flexible and printed multi-ply web comprising at least one printing step during which it is printed on a SCR002-FR-94 TEXT REMOVAL RG / CL-CHG-AG

First at least one first image portion of a starting image and at least one second at least one second image portion of said initial image, a step of assembling said first and second images. printed on at least one assembly area to form said web and said first and second image portions form a reconstructed image of said starting image.

The assembly method according to the invention is remarkable in that before said assembly step, it comprises at least the following additional steps:

a marking step during which, on at least the face respectively receiving said first, second image portions of each of said first and second strips, at least one marking area is provided, respectively comprising at least a first mark, a second marker, each having a predetermined position respectively with respect to said first, second image portions,

an adjustment step in which said first, second, and first and second image portions facing each other are superimposed, said first and second fiducials being used to adjust the positioning between said first and second ones, one by relative to each other so as to limit the offset between said first, second image portions and promote correspondence between said reconstructed image after assembling said first and second webs and said starting image.

The assembly method according to the invention thus makes it possible to guarantee the positioning between the first and second image parts so that the printed reconstituted image is as close as possible to the initial image.

Advantageously, said marking step is carried out at least partly simultaneously with said step SCR002-FR-94 TEXT REMOVAL RG / CL-CHG-AG

And printing at least one of said first and second indicia during said step of respectively printing said first, second image portion on said first, second, and second. The assembly method of the web is thus simplified.

The printing step is preferably broken down into at least a first printing step in which said first image portion and said first marker are printed on said first ink and a second printing step in which said second image portion and said second mark are printed on said second web. Thus, the positioning of the first and second marks with respect to the first and second image parts is more precise, hence a guarantee of positioning between the first and second image parts.

Preferably, during said adjusting step, said first mark is superimposed on said second mark. Misalignments are thus avoided simply and reliably.

Advantageously used first and second strips made of heat-fusible material and, during said assembly step, said assembly zone of said first and second strips is heated to a temperature at least equal to the melting temperature of said heat-fusible material so as to obtain a welded joint of said first and second strips.

At least one of said registration areas, assembly areas, may be provided along at least one edge of one of said first and second strips.

Preferably, said registration area is provided beyond said assembly area with respect to each of said first, second, printed image portions.

After said assembly step, at least part of the surplus of SCR002-FR-94 TEXTE DEPOSE_RG / CL-CHG-AG may be cut off and removed from said web at said zone located beyond said zone. assembling with respect to said first and second printed image portions. Printing of at least one of said first and second image portions is preferably provided so that it (s) includes (s) at least a portion of said second, first and second image portions respectively. to allow an area of overlap of said first and second image portions beyond said assembly area without loss between the reconstructed image after said assembling step and the original image. BRIEF DESCRIPTION OF THE DRAWINGS The invention is described below, by way of nonlimiting example, with reference to the appended drawings in which:

FIG. 1 is a perspective view of two strips,

represented side by side, before the steps

printing and assembly according to the method of the invention; FIG. 2 is a perspective view of the two strips of FIG. 1, shown side by side, after the step of printing and marking according to the method of the invention; Fig. 3 is a perspective view of the two sheets of Fig. 1 superimposed during the locating and assembling steps according to the method of the invention; FIG. 4 is a perspective view of the product

30 multi-strips having both strips of Figure 1

after the printing, locating, adjusting and assembling steps performed according to the method of the invention.

SCR002-EN-94 TEXT REMOVAL RG / CL-CHG-AG - 5 Best way to realize the invention

With reference to FIGS. 1 to 4, the assembly method according to the invention of a multi-ply web 100

flexible and printed comprises at least the steps of printing, marking, adjustment and assembly.

Before starting the manufacture of the web 100, a preliminary image is chosen beforehand which it is desired to print on this web 100, for example to achieve a

stretched false ceiling, a billboard, a decorative curtain or other. The starting image may be of a different nature and may for example include decor and / or scriptures. In the example shown, the starting image represents strands of grass formed by black lines

and white. The starting image can of course be in color.

To form the web 100, we start from les, including at least a first and a second les 1, 2 as shown in Figure 1, which is printed, marked, wedge and assembles

after printing. These strips 1, 2 are preferably made of heat fusible material, for example PVC. In the illustrated example, these strips 1, 2 are rectangular. It is understood that the term "le" is not limited to a rectangular shape or to a piece of cloth extending

in length, but may concern a piece of tablecloth having any type of shapes and / or dimensions. During the printing step illustrated in FIG. 2, a portion of the initial image is printed on each of the strips 1, 2. For example, the technique of screen printing or any other suitable technique will be used. Thus, a first part 10 of the initial image is printed on the first web 1, and on the second web 2 a second part 20 of the initial image. In this example, the first and second parts 10, 20 of the initial image are printed in such a way as to preserve a neutral zone 11, 21 that does not comprise print the starting image. These neutral zones 11, 21 correspond in this

example to the marker areas 12, 22 used later to wed the first lé 1 relative to the second lé 2.

In another embodiment, not shown, at least one of the first and second parts of the image

may overflow all or part of the registration area so as to ensure a visual continuity of the reconstituted image, even in case of lateral shift when assembling the first and second strips. In this case, the first and / or second marker (s) may be superimposed on the first and / or second image portion (s). During the registration step, the first image is printed on each face respectively comprising the first and the second parts 10, 20 of the initial image.

and in each registration zone 12, 22, at least a first marker 13a, 13b and a second marker 23a, 23b each having a predetermined positon respectively with respect to the first, second image portion 10, 20. In this example, we print two first marks 13a, 13b and two seconds

markers 23a, 23b formed by straight lines provided perpendicular to the corresponding edge of each of the first, second strips 1, 2. The first pins 13a, 13b are for example 30 cm apart from each other and the second pins 23a, 23b. The first and second landmarks

may also be sights or any other suitable form.

Similarly, in an embodiment variant not shown, at least one marker is used in the form of a cutout of at least one of the first, SCR002-FR-94 TEXTE DEPOSE_RG / CL-CHG-AG - 7 - second layer. One can of course provide several first landmarks and several second landmarks.

The printing of the first marks 13a, 13b is preferably carried out simultaneously with the printing of

the first part 10 of the starting image on the first web 1. Likewise, the printing of the second references 23a, 23b is preferably performed simultaneously with the printing of the second part 20 of the initial image. second on the second.

positioning accuracy of the first marks 13a, 13b relative to the first portion 10 of the starting image and that of the second marks 23a, 23b relative to the second portion 20 of the original image. According to a particular embodiment, the printing step decomposes

in a first printing step in which the first image portion and the first indicia 13a, 13b are printed on the first web 1 and a second printing step in which the second web portion 20 is printed. image and the second marks 23a, 23b on the second web 2. During the adjustment step illustrated in FIG. 3, the first and second strips 1, 2 previously printed are superimposed so that the first and second parts image 10, 20 that each wears face each other. The position of the first and second ones 1, 2 relative to each other is then adjusted by using the first and second marks 13a, 13b, 23a, 23b which are superimposed as precisely as possible. To do this, we open the complex formed by the first and second strips 1, 2 at their reference areas 12, 22 to position the first and second pins 13a, 13b, 23a, 23b opposite each other. When the opacity and / or transparency of the first or second strip 1, 2 placed above the other SCR002-FR-94 REMOVAL TEXT RG / CL-CHG-AG - 8 - allows, this positioning can be performed without open the complex. To facilitate this operation, the complex can be backlit. Of course, one can provide a different adjustment, for example by positioning the first and second pins side by side. After adjustment of the first and second marks 13a, 13b, 23a, 23b, the assembly step is carried out during which the first piece 1 is secured to

second lé 2 on at least one assembly zone in order to obtain the flexible and printed multilayer web 100. In the illustrated example, first and second strips 1, 2 made of heat-fusible material are used and which can therefore merge with one another when subjected to

temperature at least equal to their melting point. The melting temperature of the first and second strips 1, 2 depends on the materials used and is a data easily accessible by those skilled in the art from, in particular, the suppliers of films. The assembly area, in this example

the assembly line 3 is provided substantially parallel to the longitudinal edges of the first and second strips 1, 2. This assembly line is for example obtained by means of a heating wheel (not shown) moved on the complex, or even two heated dials arranged

on both sides of the complex. The assembly line 3 can also be obtained by a rectilinear heating tool applied to the complex or by any other suitable equipment. During this assembly step, it is preferable to proceed with a cutting and removal step of at least

a portion of the surplus of the first and second webs 1, 2 located beyond the assembly line 3 relative to the first and second printed image portions 10, 20. For this purpose, for example, a cutting tool is used. It is also possible to use the fusion of the first and second strips 1, 2 for SCR002-FR-94 TEXTE REMOVAL RG / CL-CHG-AG - 9 cut them at the assembly line 3 and simultaneously remove the surplus. This cutting step is of course optional. As we have just seen, the cutting step can therefore be performed successively at assembly or simultaneously.

After assembly of the first and second strips 1, 2, the sheet 100 is opened, revealing the first, second printed portions 10, 20 visible on the same side of the sheet 100. Through the use of the first and second markers 13a, 13b, 23a, 23b at the time of adjustment, the offset between the first and second image portions is limited and an image corresponding to the original image is obtained. In the illustrated example, the registration area 12, 22 is positioned beyond the

assembly line 3 with respect to the first, second printed portions 10, 20. Thus, the first and second pins 13a, 13b, 23a, 23b are not visible after opening of the web 100.

According to an embodiment not shown, it is possible, during the printing phase, to provide for the printing of the first and / or second parts of the initial image beyond the assembly area. so that it is superimposed on the first and second parts of the image

in an overlap zone intended to be invisible. In this case, it is expected that each of the first and second image portions comprises a portion of the second, first image portions, respectively, making it possible to obtain a recovery area without loss of image.

area of the starting image while allowing to guarantee the continuity between the first and second image parts even in case of lateral shift between the first and second strips.

With reference to the example described, the resulting ply SCR002-FR-94 TEXTE REMOVAL RG / CL-CHG-AG - 10 - according to the assembly method of the invention consists of two strips. It can of course include a number of higher units. In this case, the additional strips are printed or not. When printed, we will use

advantageously the same method for wedging and assembling the additional strips. Possibilities of industrial application

The assembly method according to the invention can be

implemented to manufacture any type of flexible multi-ply webs and printed, for example for use as a false wall. These tablecloths can also be used to make a decor, make a display, curtains or any other element.

It is understood that the examples described are only particular illustrations and in no way limiting the fields of application of the invention. Those skilled in the art will be able to provide size, shape and material adjustments to the exemplary embodiment.

particular and the installation method without departing from the scope of the present invention.

Claims (10)

REVENDICATIONS1. Method of assembling a multi-ply web (100) CLAIMS1. Method for assembling a flexible and printed multi-ply web (100) comprising at least: a printing step during which at least one first image portion (10) is printed on a first web (1) a starting image and on at least a second web (2) at least a second image portion (20) of said starting image, - a step of assembling said first and second webs (1, 2) printed on at least one joining zone (3) so as to form said web (100) and said first and second image portions (10, 20) form a reconstituted image of said starting image, characterized in that, prior to said assembling step, it comprises at least the following additional steps: a registration step during which, on at least the face respectively receiving said first, second image portions (10, 20), each of said first, second and second strips (1, 2) having at least one registration area (12, 22) respectively comprising at least one first mark (13a, 13b), second mark (23a, 23b) each having a mark predetermined respectively with respect to said first, second image portions (10, 20), - an adjusting step in which said first, second (1, 2), said first and second image portions are superimposed; (10, 20) facing each other, using said first and second markers (13a, 13b, 23a, 23b) for adjusting the positioning between said first and second ones (1, 2) relative to one another so as to limit the offset between said first, second image portions ( 10, 20) andSCR002-FR-94 TEXTE REMOVAL RG / CL-CHG-AG - 12 - promote the correspondence between said reconstituted image after assembly of said first and second strips (1, 2) and said starting image. 2. Method according to the preceding claim, characterized in that said marking step is carried out at least partly simultaneously with said printing step and that at least one of said first and second marks (13a, 13b, 23a, 23b) during said step of respectively printing said first, second image portion (10, 20) on said first, second web (1, 2). 3. Method according to the preceding claim, characterized in that said printing step is decomposed into at least a first printing step during which said first image portion (10) and said first marker (13a, 13b) on said first web (1) and a second printing step in which said second image portion (20) and said second mark (23a, 23b) are printed on said second web (2). 4. Method according to any one of the preceding claims, characterized in that, during said adjusting step, said first mark (13a, 13b) is superimposed on said second mark (23a, 23b). 5. Method according to any one of the preceding claims, characterized in that one uses first and second strips (1, 2) made of heat-fusible material and in that said assembly step, said heating is heated joining zone (3) of said first and second strips (1, 2) at a temperature at least equal to the melting temperature of said heat-fusible material of SCR002-EN-94 CONTINUOUS NOTIFICATION RG / CL-CHG-AG - 13 - to obtain a welded connection of said first and second strips (1, 2). 6. Method according to any one of the preceding claims, characterized in that at least one of said registration areas (12, 22), assembly zones (3), is provided along at least one edge of one of said first and second strips (1, 2). 7. Method according to any one of the preceding claims, characterized in that said registration zone (12, 22) is provided beyond said assembly zone (3) with respect to each of said first, second parts. image (10, 20) printed. 8. Method according to the preceding claim, characterized in that, after assembly, is cut and removed at least a portion of the surplus of said web (100) located beyond said assembly area (3) relative to said first and second image portions (10, 20) printed. 9. Method according to the preceding claim, characterized in that it is expected to print at least one of said first and second image portions (10, 20) so that it (s) comprises (nt) at least a portion of said second, first image portions (20, 10) to allow an overlap area of said first and second image portions (10, 20) beyond said lossless assembly area between the reconstructed image after said assembling step and the image of departure.