FR2591942A1 - METHOD FOR PRODUCING A PRODUCT SUCH AS A DECORATION BOARD FLANK - Google Patents

Abstract

at. Process for making a decorative cardboard sidewall. b. Process according to which the sheet of material 4 is superposed on the support 2 with juxtaposition of a heat-sealable 3 and the decorative element 7, 3A, 3B is cut out of the sheet 3 and the layer 4, while crimping by heat-sealing this element 7 in the support 2, then at least part of the surface of the element 7 is laminated to the support 2, possibly with embossing. vs. The invention relates in particular to the manufacture of luxury packaging. (CF DRAWING IN BOPI)

Description

"Method of producing a product such as a flank of

decorative cardboard ".

  The present invention relates to a method of producing a product such as a blank of decorative cardboard or for the production of a display or a packaging product formed of a support on which is fixed a decorative element or trim cut from a sheet of decorative material or trim, of suitable shape, the assembly thus formed

possibly being embossed.

  The invention also relates to products including packaging, advertising elements, displays,

  etc ... made according to the method of the invention.

  It is already known to laminate fabrics on a wide variety of substrates, in particular to laminate fabric provided with a fusible layer on cardboard to make displays, luxury packaging, in particular

intended for perfumery, etc.

  However, this known technique although very

  interesting has a number of disadvantages.

  For the implementation of this known technique, it is necessary a ply of decorative material (fabric, paper, thin metal sheet, etc ...), previously coated with a heat-sealing coating. This results in very high rigidity. Indeed, it is necessary to coat the material of the adhesive layer. This often requires intervention outside the workshop that implements the product. In addition, this creates problems of stock, series, etc ... since each material used to make the decorative element must be available

  in the form of a strip provided with the heat-sealable layer.

  At the actual manufacturing level, the use of such a strip, provided with a heat-sealable layer presents difficulties, especially when the pattern coated with the decorative sheet has relatively large deformations. In other words, such patterns can not be achieved because the sheet of the element does not have sufficient flexibility to progressively follow the deformation and the sheet becomes

  tears or deforms unacceptably.

  In addition, the edge of the decorative element or the pattern thus produced is often not very clear, the threads of the fabric are not all properly cut. Beards can subsist that deteriorate the overall appearance

of the product.

  The present invention aims to overcome the drawbacks of known solutions and proposes to create a process for producing products such as sides of decorated cardboard for the production of displays, including packaging luxury packaging for perfumery and, in general, luxury products, giving the product a very great finish and sharpness of realization both at the edge of the decorative element (s) inlaid in the support and at the level of the possibilities of deformation and in particular of the embossing of the product . For this purpose, the invention relates to a method of the above type, characterized in that that: A) The mat of material for the decorative element is placed on the support with the interposition of a layer of heat-sealable material, B) The decorative element is cut into the sheet and the layer while crimping by heat-sealing this element in the support by gluing the edge of the element to the support by the edge of the piece of heat-sealing material thus cut with the aid of the cutting tool, C) is backed at least a large part of the surface of the element on the support through

  intermediate of the fusible layer.

  The method according to the invention makes it possible to use a very large diversity of materials as a web in which the decorative element is cut. It is] 0 useless to provide this layer of a heat-sealable layer especially as some relatively fragile materials

  do not accept such a heat-sealable layer.

  Moreover, as the cut-out assembly composed of the piece constituting the decorative element and a correspondingly shaped part constituted by the layer

  of heat-sealable material, the connection of the piece and -

  the support is only at the cut edge of the workpiece. As this edge is further crimped in the support, the slight depression of the crimping ensures a clear separation between the edge of the cut piece and the remaining portion of the sheet. This edge is even more clear that the possible parts of yarn in the case of a fabric or fibers in the case of a material such as paper, protruding from the cutting edge, remain embedded in the line of crimping. The whole image is perfectly clear. In addition, this prior fixing by crimping ensures the maintenance of the part and allows during the subsequent step of laminating, with the optional embossing, free movement of the part during the embossing. This is even more important than at this moment, the cut piece in the decoration tablecloth, the piece cut in the heat-sealable layer and the

  support are only in contact with the crimping line

  wise. As during the entire embossing operation, until shortly before the end of the operation, the surface of the workpiece is not applied against the heat-sealable layer and against the support, the relative displacement makes it possible to compensate for local elongations due to greater local deformations in one or another part of the decorative element. This avoids tearing even in the case of complicated waffling or causing significant deformation. Moreover, since the layer of heat-sealable material can also move freely to a certain extent since it is not yet applied under pressure against the support and against the workpiece, the workpiece can also be distributed and avoided.

  any tear that would result in an irregular collage.

  The product thus obtained presents a perfect

  outline sharpness and embossing shape.

  Although in most cases it is interesting to counteract the entire surface of the decorative element on the support, it can be interesting,

  in some cases, leave unsized parts.

  For this, it is enough to make cavities at the corresponding places in the bottom of the embossing matrix for

  avoid heat sealing at this location.

  According to another characteristic of the invention, the sheet of material in which the decorative element is made is a fabric, paper, nonwoven, a thin sheet of a metal such as a thin sheet of a

  ductile metal coated with gold, silver, etc ...

  The invention also relates to products produced by this process and in particular to all decoration, advertising and packaging products consisting of

  supports including flanks of cardboard.

  The present invention will be described in more detail with the aid of the accompanying drawings, in which:

  - Figure 1 is a partial schematic view -

  cutaway showing the first phase of the process of the invention,

  FIG. 2 is a partial diagrammatic view

  cutaway showing the second phase of the process, - Figure 3 is a partially cut schematic view showing the third phase of the process,

2591942

  FIG. 4 is a schematic view

  showing the product obtained by the process of the invention.

  The invention will be described below in the context of the production of a product such as a decorative element including a cardboard side for the manufacture of a display or a package consisting of a support on which is fixed a cut-out decorative element

in a sheet of material.

  According to Figure 1, there is provided on a support plate 1 forming part of the machine, a support 2 for example a cardboard plate, on which we want to fix the decorative element. On top of this support 2, we

  has a sheet of fusible or thermo-thermic material

  weldable 3 and above it, a sheet of material 4 in which it is proposed to make the element of

  decoration to be fixed on the support 2.

  This figure also shows the knife 5 attached to the knife holder 6. The knife 5 is a heating knife for heat sealing. On the other hand, the knife holder 6 may have been cooled to

  not accidentally cause sticking.

  The support plate 1 is generally the plate

  a press or intermediate plate attached to a press.

  This press also carries the support 6 provided with the knife 5.

  This knife 5 is generally constituted by one or more steel blades such as the blades used in cardboard and cardboard blank cutting techniques,

puzzles, etc ...

  The support 2 used is a support made of cardboard, paper or synthetic material. The thickness of this support has been deliberately exaggerated to the drawings of the same

  than the thickness of the layer 3 and the layer 4.

  Layer 3 is a generally non-woven web of heat-shrinkable or fusible material fibers that

we roll off a roll.

  The sheet 4 is a sheet or a sheet of a material generally decorative for example fabric, paper or a sheet of a metal such as a gold leaf,

  a silver leaf, an aluminum foil, etc.

  Although shown in FIG. 1 as being sheets, the layer 3 and the sheet 4 may be provided by rollers that unload them as

as they are used.

  Figure 2 shows the end of the first phase of operation, that is to say when the decorative element

  is cut and is crimped in the support 2.

  According to FIG. 2, the knife 5 and the holder

  6 are in the raised position and have caused in their lifting movement the remains 3B and 4B of the layer 3 and the ply 4 after cutting the element 7 formed of the part 3A of the layer 3 inside the contour of the knife 5 and the part 3B formed inside

  of the knife 5 in the sheet of material 4D.

  During its cutting movement, the knife 5 not only cuts the pieces 3A and 3B but also the crimping of the edge 8 of the element 7 thus cut in the support 3. The crimping depth has been greatly exaggerated at the FIG. 2. It should be noted that the knife 5 has a triple function, that of the cutting of the element 7 (composed of the parts 3A and 3B), that of the crimping of the edge 8 of the element 7 in the support 2 and finally the heat-sealing of the edge 8 in the support 2. This heat-sealing is done through the edge 9 of the piece 3A of

heat-sealable material.

  FIG. 2 also shows that all the central parts 3C, 4C of the parts 3A, 3B are neither bonded to one another nor glued to the support 2, since even if the knife holder 6 comes into contact with the part 7, there is not heat-sealing, but only crimping the

  around the piece of the pattern to be inlaid.

  Figure 3 shows the third step of the method according to the invention. This third step is to laminate the element 7 on the support while ensuring the at least partial embossing of the support and

of the element.

  For this, the assembly formed by the support 2 in which the element 7 is crimped is disposed between a matrix 8 and a counter-matrix 9 having one

  cavities 8A, 8B and the other bosses 9A, 9B.

  The matrix 8 and, if appropriate, the counter-matrix 9 are heated to ensure both the embossing or shaping of the assembly 2-7 and, on the other hand, the simultaneous laminating by heat-sealing of the part 4A of the element 7 on the support 2 via

  of the piece of heat-sealable material 3A.

  Figure 4 shows the result of this last operation. The product obtained, such as an embossed flank for the production of a luxury package, is always attached to the counter-matrix 9. In this figure, the part 4A constituting the decorative element 7 is laminated to the support 2 and the layer of fusible material has disappeared. In general, the thickness of the ply constituting the decorative element 7 is sufficiently small so that the shape of the matrix 8 does not have to take into account its thickness but only the thickness of the support 2 and the deformation (embossing) to achieve. As a result, the part 7 is generally embedded in the support 2 and is

  flush with the surface of it.

R EV E N DI C A T IO NS

  1) Process for producing a product such as a blank of decorative cardboard or for the production of a display or packaging, product formed of a support on which is fixed a decorative element or trim in a tablecloth of

  decoration or trim, of an appropriate shape, the

  thus appears to be formed optionally embossed, characterized in that: A) The sheet of material (4) is arranged for

  the decorative element on the support (2) with inter-

  position of a layer of heat-sealable material (3), B) Cut (5, 6), the decorative element (7) (3A, 4A) in the ply (3) and the layer (4) while crimping by heat-sealing this element (7) in the support (2) by gluing the edge (8) of the element (7) to the support (12) by the edge (9) of the piece (3A) of fusible material thus cut to using the cutting tool (5, 6), C) At least one part is

  the surface of the element (7) on the support (2) by the

  intermediate of the fusible layer (3A).

  2) The process according to claim 1, wherein

  characterized in that the decorative element (7, 3A, 4A) is embossed and counter-glued on the support (2) during a

same operation.

  3) Process according to claim 1, characterized

  characterized in that the web of material (3) in which the decorative element (7) is made is selected from the group formed by the tissues, the papers, the sheets

thin metals.

  4) Product such as cardboard side for packaging, for display or the like and formed of a support on which is fixed a decorative element or trim, the assembly being optionally embossed, produced characterized in that it is realized by the Implementation

  process according to any one of claims 1 to 3.