FR2608794A1 - METHOD AND APPARATUS FOR CONTINUOUS PRODUCTION OF SELF-ADHESIVE PHOTOGRAPHIC TESTS OR PRINTS - Google Patents

Abstract

THE INVENTION PROVIDES A PROCESS FOR THE CONTINUOUS PRODUCTION OF SELF-ADHESIVE, INDIVIDUAL TESTS 8 CONSISTING OF: A. FORMING A LAMINATED STRIP 1 INCLUDING A STRIP OF MATERIAL IMPRESSIONED AND ADHESIVELY APPLIED ON A SUPPORTING SHEET, B. BAND 1 THROUGH A MATCHING AND CUTTING REGION, IN WHICH A SECOND DRIVE MEANS 9, CAUSES THE SCROLLING OF THE SHEET STRIP THROUGH A CUTTING EQUIPMENT FOR TESTS 8, C. DRAWING THE SHEET STRIP OUT OF THE REGION OF MATCHING AND CUTTING THROUGH A THIRD TRAINING MEANS, THE TRANSFER SPEEDS OF THE LAMINATED TAPE PROVIDED BY THE FIRST AND THIRD TRAINING MEANS BEING SET TO MAINTAIN OPEN 13 NOT TIGHT IN INTERMEDIATE REGIONS LOCATED BETWEEN THE SECOND MEANS OF TRAINING AND RESPECTIVELY EACH OF THE OTHER MEANS OF TRAINING, THESE LOOPS THEN PROTECTING THE LEAF BAND LONGITUDINAL CONSTRAINTS EXERCISED ON IT BY THE FIRST AND THIRD MEANS OF TRAINING.

Description

METHOD AND APPARATUS FOR CONTINUOUS PRODUCTION

  TESTS OR PHOTOGRAPHIC PRINTS

Self-Adhesive

  The impression relates to a process for

  continuously produce prints or photo-

  self-adhesive graphics that can be individual-

  removed from a support sheet; it is also

  relating to an apparatus for carrying out this process. When using automated proof-cutting equipment, it is necessary to precisely adjust the cutting tool's matching of printed images or prints to ensure that parts of the images that one wishes to preserve are not cut out. It has been difficult to date to ensure and maintain reliable mapping of the cutting tool and images throughout the life of a production operation. The invention provides a method for continuously producing photographic prints or prints

  self-adhesive that can be detached individually

  from a support sheet, this process com-

  taking the steps of: a / - forming an elongate laminated strip comprising a strip of imprinted material and adhesively applied to a release sheet from which it can be peeled off;

  b / - to drive positively the band the film strip

  by means of a first means of training

  to a mating and cutting region, wherein a second drive means, the operation of which is set via mating means, causes the laminated belt to travel through cutting equipment. tests, the latter ensuring the occasion of each cutting operation the cutting of the perimeter of a printed or impressed image, without cutting the support sheet, and c / - positively cause the laminated strip out of the region of implementation matching and cutting through a third drive means,

  the transfer speeds of the laminated belt

  by the first and third training means

  being adjusted, so as to ensure that the film strip

  letée be protected from longitudinal stresses exerted on it by the first and third drive means. Preferably the laminated strip is protected from longitudinal stresses in the matching and cutting region by causing the laminated strip to form open, unstretched loops in intermediate regions between the second drive means and respectively each other drive means. The transfer speed can be adjusted depending, for example, on the importance of the arrow formed by the loops and detected with the aid of

photoelectric means.

  The matching of the printed or impressed web may be performed through longitudinal perforations of this printed or impressed web, or preferably via a detector such as a photoelectric device which detects landmarks. matching also

printed on the tape.

  Embodiments of the method and apparatus of the invention are further illustrated

  by the following additional description, as a

  example only, and by reference to the drawing in the-

  which Figure 1 and a representative diagram of a

  allowing the implementation of the method according to the invention.

  As shown in Figure 1, a strip of paper

  1 is formed continuously by application to a strip 2 carrying photographic prints of a

  carrier sheet 3 itself having an adhered layer

  sive, nevertheless allowing the subsequent separation of the support sheet. The strip and the backing sheet are fed from rolls and are fed to a rolling zone 4 between the rollers of the first drive means 5. The rolled sheet is then fed

  to form an open untensioned loop 13.

  The laminated strip 1 is then driven downstream of the loop 13 and routed through the test matching and cutting region using

  second drive means 9. For the setting

  respondent, the laminated tape 1 is conducted

  to guide means 6 and downstream of a device

  photo-electric device that detects

  correspondances printed on the laminated tape.

  A proof-cut tool ensures the discovery of

  page of each image on its periphery without producing a break in the support sheet. In this example, the driving means 9 comprises a motor enabling

  intermittent movements, the functioning of this

  being set by the photoelectric device 7.

  The laminated strip carrying the images

  on their periphery and leaving the region of matching of proofs and cutting, then form

  a second open loop 13, not tensioned, and is

  dragged out through the rollers of the

third means of training.

  The sheet 11, formed of the external excess part and the images delimited by their peripheries cut in the form of a continuous strip, is separated from the laminated strip and the resulting continuous support sheet 12 is recovered which retains

12 self-adhesive prints.

  In the example of Figure 1, the speeds

  training of the first and third means of

  are adjusted thanks to the photoelectrical measurement

  the arrows of the respective loops.

  The first drive means 5 feeds the first loop 13 until the latter intercepts the beam of a photoelectric device 14; as the laminated strip 1 is conducted through the matching and cutting region, the size or the deflection of the loop 13 is reduced so that when the bundle

  no longer intercepted, this results in a new food

  laminated tape to the test matching and cutting region

  with the effect of increasing the size of the

key.

  Similarly, the third means of

  stretching 10 drives the flaky strip out of the

  second loop 13, until the loop ceases to

  tercept the beam of a second camera-

electric 14.

  The presence of the loops 13 ensures the pro-

  tection of the laminated band of long-term

  in the region of correspondence and devel-

  cuts which, under other conditions,

  could be caused by the operation of the means

5 and 10.

  By maintaining the arrow and the size of the loops in the laminated strip, on both sides of the test matching region and

  the method according to the invention is effected ef-

  fectively in 3 separate steps. The apparatus for implementing the invention actually comprises 3 parts essentially separated from each other, that is to say: a part providing the supply of laminated strip, a part allowing the advancement of a

  laminated tape through a matching region.

  spawning and cutting, and a region to extract the

  laminated strip with cutouts.

/ / /

Claims (4)

  1 / Process for continuously producing proofs   photographic or self-adhesive prints that can   The method comprises the steps of: a / - forming an elongate laminated strip comprising a web of imprinted material and adhesively applied to a release sheet from which it can be peeled off;   b / - & positively drive the tape   by means of a first means of training.   to a mating and cutting region, wherein a second driving means, the operation of which is set via mating means, causes the laminated belt to travel through cutting equipment. tests, the latter ensuring the occasion of each cutting operation the cutting around the periphery of a printed or impressed image, without cutting the support sheet, and c / - positively cause the laminated strip out of the region of implementation correspondence and cutting via a third drive means,   the transfer speeds of the laminated belt   by the first and the third training means   being adjusted, so as to ensure that the film strip   let be protected from the longitudinal stresses exerted on it by the first and third drive.   2 / A method according to claim 1, characterized   in that the laminated strip is protected from the constraints   longitudinal positions in the matching area.   dance and cutting while maintaining loops   unstretched openings of the laminated strip in   between the second means of training and   each other means of training.   3 / A method according to claim 2, characterized in that the transfer rate of the laminated strip   is controlled by adjusting the arrow of the loops.   4 / A method according to any one of the claims   1 to 3, characterized in that the laminated strip   is formed continuously by the application on the   of a tape bearing photographic impressions   a carrier strip provided with a peelable adhesive.   Process according to any one of Claims 1 to 4, characterized in that, after the cutting operation, the excess of the outer band at the tests   cut is separated from the laminated strip by decol-   Continuous wear and the resulting continuous support tape that carries self-adhesive proofs is recovered. 6 / Apparatus for implementing the method   according to any one of claims 1 to 5.