FR2644183A1 - COMPLEX COMPRISING SEVERAL SHEETS, USEFUL AS A MAGAZINE COVER AND AS A LABEL - Google Patents

Abstract

The invention relates to a paper complex. It comprises at least a first sheet 14 printable on one side, coated with a layer of adhesive 17 on the opposite side and at least one second protective sheet 15 coated on one side with a non-stick, characterized by the fact that that the second protective sheet 15 is printable on the opposite side. The second protective sheet 15 consists of: - at least one flexible sheet 21; - at least one non-stick layer 23 deposited on one side; - at least one pigment layer 24 deposited on the opposite face. Application as cover of magazines and as labels.

Description

COMPLEX COMPRISING SEVERAL SHEETS, USED IN PARTICULAR AS

  COVERAGE OF MAGAZINES AND LIKE LABEL.

  The invention relates to a complex comprising at least two flat and flexible sheets, which can receive printing and / or writing and can be used for example as a magazine cover

  and at the same time can be used as labels.

  Juvenile newspapers are already known which comprise one or more leaflets consisting of at least one first sheet of printable paper on one side, coated with a layer of glue and at least one second sheet of protective paper coated with a silicone layer. The first and second sheets are temporarily assembled but can separate manually. The first sheet has drawings and cutouts placed around the drawing. The user thus separates an area of the first sheet from the protective sheet and

  affix this area to an object that is thus decorated.

  Also known are "stickers" which are generally round in shape and constituted in the same way, namely a first printed sheet comprising an adhesive and a second sheet acting as a protective layer of glue and detachable

  when using. The protective sheet is then discarded.

  We also know magazines for example weekly, including programs broadcast on television. These magazines have a central insert or double sheet consisting of a first sheet, provided with precut areas, having on one side an imprint coated on the opposite side of a layer of glue; and a second sheet affixed to the first whose function is to protect the layer of glue. On these pre-cut areas are printed images relating to a film broadcast, as well as the title of the film. Owners of videoscope systems can therefore record on video tapes and detach a pre-cut area to paste it on the edge of the packaging cassette of the video recording tape, so as to identify the films thus recorded. When all pre-cut areas are detached, it remains the sheet -protector inside the magazine. Now, the printers have found that such inserts placed in the center of the magazines cause overcompensated manufacturing. Indeed, to place the insert in the middle of the package of sheets forming the magazine, it is necessary to perform an additional operation. In addition, the protective sheet is unusable

  when all precut areas have been detached.

  The invention aims to overcome these disadvantages. An object of the invention is to provide a complex comprising at least a first flexible sheet printable on one side, coated with a layer of adhesive on the opposite side and at least one second flexible protective sheet coated with a layer of non-stick, for example, silicone, this complex being such that it does not require additional industrial operation during the manufacture of a notebook or magazine and as the two sheets are

used.

  For this purpose, the complex according to the invention is characterized in that the protective sheet is itself printable on the

  face opposite to the face on which is deposited the layer of anti-

  adherent, for example a silicone layer.

  Preferably, the protective sheet is printable in four-color process. More preferably, the protective sheet has a pigment layer on both sides. This protective sheet is distinguished from the protective sheets used according to the prior art, because it comprises a pigment layer on the face intended to be coated with a release layer and that it further comprises a pigment layer on the face opposite, this additional pigment layer having the function of making the sheet printable, preferably in four-color process. Thus, the invention is remarkable in that the complex obtained can be printed on its two outer faces. On one side, pre-cuts are also carried out and on the outer face of the protective sheet an impression is made. Thus the complex according to the invention can be used, either by being introduced in the center of the sheets forming the magazine, but so as to

  cover the leaves and then form the cover of the magazine.

  An industrial operation is therefore deleted.

  According to the invention, the complex is such that the pigment layer of the protective sheet is composed of at least one binder, for example a natural or synthetic polymer, at least one pigment, for example kaolin, titanium, calcium. The layer may also comprise one or more adjuvants in a mixture, for example water retenters such as

  carboxymethylcellulose, dispersants, pigments,

foams, thickeners, etc.

  The following description, next to the drawings, will

  understand how the invention can be put into practice.

  FIG. 1 is a view of a complex according to the technique

  previous and its usual use.

  Figure 2 is a view of the complex according to the invention and its use. FIG. 3 is a sectional view along line I-I of the complex

shown in Figure 1.

  FIG. 4 is a sectional view along line II-II of the complex

  according to the invention shown in FIG.

  In Figure 1, there is shown a complex 1 of the prior art. This complex 1 consists of a first sheet 2 and a second sheet 3. The first sheet 2 may consist for example of a paper 4 obtained in the usual manner on a paper machine, for example "flat table", from an aqueous suspension of cellulosic fibers and fillers. This paper 4 is coated on one side with a layer 5 whose function is to enable the printing 6. On the opposite side, the paper 4 is

coated with a layer of glue 7. -

  The second sheet 3 serves to protect the glue 7 of the

first sheet 2.

  This second sheet 3 may consist, for example, of a paper 8 coated on one side with a treatment layer 9 for depositing a layer of non-adhering silicone. The function of the treatment layer 9 is to form a barrier between the paper 8 and the silicone layer 10, so that the silicone remains on the surface. The first sheet 2 and the second sheet 3 may also be made of a flexible polymer such as high density polyethylene, polypropylene, polyester, polybutene or mixtures thereof. The sheets can be obtained by extrusion & flat and optionally bi-drawing according to the prior art described for example in US Pat. Nos. 4,359,497 and 4,176,148. These sheets of synthetic materials are sold under the trade names POLYART R.

USIPLAST R by the plaintiff.

  The silicone layer 10 is deposited using a coater, a sizepress or by printing. It may be a composition in an aqueous medium or in a solvent medium of a polymer

  silane derivative. Then this layer is dried.

  The first sheet 2 is printed with patterns 11 and is

precut in zones 12.

  The user can take off an area 12 (according to the arrow F1)

  to paste this area 12 on another support.

  FIG. 2 shows a complex 13 according to the invention.

  This complex 13 consists of a first sheet 14 and a second protective sheet. The first sheet 14 may consist of a paper 16, one side is coated with a layer of adhesive 17 and a layer 18 for printing and / or writing. The print is represented at 19. The second sheet 15 has a dual function. Its first function is to protect the adhesive layer 17, and its second function is to receive a

impression 20.

  The second sheet 15 may consist of a paper 21 coated on one side of a treatment layer 22 whose function is to barrier the silicone release layer 23. The paper 21 is coated on the opposite side of a layer 24 so the function is to enable printing. The first and second sheets 14, 15 may be made of synthetic material,

  such as high density polyethylene, extruded polypropylene.

  Preferably, the layer 24 is obtained by deposition of an aqueous composition containing at least one pigment, at least one binder,

possibly adjuvants.

2644,183

  In an exemplary embodiment of the invention, the layer 24 is a layer of 20 g / m 2, by dry weight. This layer can for example

  be deposited in two layers, each of 10 g / m2.

  The layer 24 preferably allows four-color process printing, at high speed, on an offset machine. The first sheet 14 comprises an imprint 19 of patterns which may comprise for example the title of a film and it is precut in zones 25. The user can thus take off a zone (according to the arrow F2) to stick this zone 25, by example on the edge of a cassette containing a videoscope recording system. The second sheet 15 is printed and may preferably include four-color printing. It can include by

  example an illustration for magazine cover.

  The complex 13 according to the invention is used in the following manner: The complex 13 is folded after having made the pre-cuts 27 and the prints 19 on the first sheet 14 and the impressions on the second sheet 15, along a line XX, such that that prints 19 are inside and prints 20 outside. Inside the 13 folded complex, we introduce

  printed leaflets that are linked together to form a magazine.

  Complex 13 then forms the cover of this magazine. Its outer side remains permanently, while its inner side is detached by zones 25 successively by the user. The function of the complex 13 in its application is therefore twofold: the first function is to serve as a cover and the second function is to

  serve as removable and self-adhesive labels.

Claims (10)

  A complex comprising at least a first sheet (14) printable on one side, coated with a layer of adhesive (17) on the opposite side and at least one second protective sheet (15) coated on one side with a anti-adhesive, characterized in that the second protective sheet   (15) is printable on the opposite side.   2. Complex according to claim 1, characterized in that the second protective sheet (15) consists of: - at least one flexible sheet (21) - at least one non-stick layer (23) deposited on a face - of at least one pigment layer (24) deposited on the opposite face. 3. Complex according to claim 2, characterized in that the pigment layer consists of: - at least one binder - at least one filler - optionally, at least one additive 4. Complex according to claim 3, characterized in that the binder is selected from natural and / or synthetic polymers. 5. Complex according to claim 4, characterized in that the pigment is chosen from kaolin, titanium, calcium carbonate.   6. Complex according to one of claims 1 to 5, characterized   in that the flexible sheet (21) is chosen from a sheet of paper, of polymer, such as high-density polyethylene, polypropylene, polyester, polybutene or their mixtures.   7. Complex according to one of claims i to 6, characterized   by the fact that it includes impressions (19, 20) on the   outer faces of the leaves (14, 15).   8. Complex according to one of claims 1 to 7, characterized   in that it comprises pre-cuts (27) on the first sheet (14).   9. Application of the complex according to one of claims 1 to 8,   as a magazine cover and as a label.   10. Magazine, characterized by the fact that it includes in   covering a complex (13) according to one of claims 1   at 8, said complex being folded so that the impressions (19) on the first sheet (14) are inside and the impressions (20) are on the second   sheet (15) are outside.