FR2617438A1 - PROCESS FOR CONTINUOUSLY PRINTING SHEETS TO BE WRAPPED, AND COMPOSITE COIL FOR ITS IMPLEMENTATION - Google Patents

Abstract

A composite reel is formed with butted sections of strips of paper 1, 2, 3 of various types each corresponding respectively to that of one of the constituent sheets of a bundle, and the strip is continuously printed with the same graphic composition. composite which is then sectioned into printed sheets before assembly in the desired order to form bundles.

Description

PbOCc:) E OF CONTINUOUS PRINTING OF BINDING SHEETS,

  AND COMPOSITE COIL FOR ITS IMPLEMENTATION

  The present invention relates to industries

  printing and stationery. It aims more

  especially the printing of bundles and in particular of lias-

  its of forms or other multi-sheet documents

  carbonless paper sheets, at least some of which are of a particular nature: color, thickness,

  quality, for example, different from other sheets

let \ s.

  Bundles of printed documents are common

  ment used for various uses, but especially in IT, published in small runs of the order of 5 to 10,000 bundles for example. The paper of the first sheet, constituting the original, is generally of better quality than that of the other sheets, for reasons of price.

  cost, but also thickness, in order to be able to trans-

  put more easily the subsequent inscriptions hand-

  written or typed on other sheets.

  Until now, printers have used as many reels of paper as there are different types of paper constituting the bundle, which required for each type of sheet, a change of reel, then a new setting and adjustment of the printing machine. The rolls of paper used by printers specializing in these types of reduced-circulation printing generally weigh between 150 and 300 kg, which makes handling not very easy and repetitive, each printing using approximately 1,000 to 2,000 meters of paper per sheet. . All these manipulations, and the corresponding machine settings require a significant labor time, a mess

  of paper with each adjustment, and a storage of the reels by-

  partially used, inactive until a next shot

ge with the same paper.

  The object of the invention is to avoid losses of labor, paper and the immobilization of printing machines, as well as excess paper, while ensuring the best printing of the first sheet of bundles. The subject of the invention is a printing process

  continuously of the same graphic composition on sheets

  various lets called to form a predetermined number of

  bundle: - composites, in particular carbonless, charac-

  in that we form a composite coil by winding

  Lement of a continuous strip, whose width corresponds to one of the dimensions of a sheet, or a multiple of this dimension, and which is composed of butted sections

  various strips of paper, the nature of which corresponds to each

  lays respectively that of one of the sheets

  of each bundle, -which one prints in con-

  continuous band'composite of which each of the sections succeeds

  sifs corresponds respectively to the set of each of the sheets necessary for the formation of the set of bundles, and in that the strip is cut into printed sheets which, after elimination of the undesirable sheets encroaching on two contiguous sections, then assembly in

  the desired order, will form the bundles.

  In practice, the last section of strip is printed, which is to form the cover sheets of the

  bundles which ensures the best printing conditions

  sion, with regular inking and the best setting.

  According to an advantageous embodiment, the adjustments and settings of the printing machine are carried out on an initial excess portion of the first section of the composite strip. This avoids the initial stalling of a start-up paper reel, and provides

3 2617438

  time saving. The start-up is thus carried out with the cheapest paper, that of the last sheet of the bundles. With the same concern for saving labor, at the end of printing, we leave in the printing machine,

  as a starter tape for a subsequent printing operation

  superior, a final excess portion of the last stretch

lesson of the composite tape.

  The invention also relates to a composite reel of papers for the graphic printing of leaflets of a predetermined number of bundles

  following the process described above, charac-

  terized in that it is constituted by a strip

  continuous wound formed of several sections of strips of

  i paper of various kinds abutted.

  in such a coil, preferably, the first and first section around the core of the

  reel is made of paper from the nature of the cover sheets

  greenness of the bundles. Thus it is the paper requesting the 2C best print quality which will be printed in the

best conditions.

  According to an advantageous embodiment, the section

  strip of tape wound last and forming the outside

  of the reel is made of paper of the nature of the last sheets

  lets bundles. Therefore, it is the paper less sensitive to shocks, in the case of carbonless bundles, which is exposed in the reels, and protects the papers

  sensitive intermediate and cover sheets.

  To avoid the use of start-up paper

  for printing a reel, as well as for printing

  subsequent reel of another reel with the same machine, at least one of the first and last sections of the

  composite strip is longer than the intermediate sections

  diaries. i: _ For printing carbonless bundles, the 4 sections of tape are made of sensitive carbonless paper, with the exception of the section enrGoll last and forming

the outside of the coil.

  The invention is illustrated in the appended drawing by an exemplary embodiment.

  Figure 1 is a schematic perspective view

  ve, of a bundle printed according to the invention;

  Figure 2 is a schematic view, in cross section

  metral, of a coil according to the invention for printing

  sion of the bundle of Figure 1; and, Figure 3 and a partial schematic view of the strip, in three butted sections, wound on the reel

in Figure 2.

  In these drawings, the corresponding elements are

  designated by the same reference numerals.

  A bundle of paper generally includes at least three types of paper corresponding to the first sheet

  1, to one or more intermediate sheets 2, and to the last

  deny sheet 3. The footage of each quality of paper 1, 2, 3 is successively wrapped around a core 4, starting with the section of paper 1 of the first sheet,

  which is connected in a conventional way, for example by col-

  lage 5, a section of paper 2 of intermediate sheet,

  which in turn is connected to another section of film

  let intermediate, or to the section of paper 3 of the last sheet. The composite paper reel thus formed allows the creation of a number of bundles of a format

  determined by the width of the spool and the yardage of each

than paper quality.

  Printing is done from a single reel

  instead of three or more, according to conventional methods.

  A single reel gathers all the paper necessary for making a bundle print, which avoids the successive stalls of the printing machine and the paper primers for each paper component of the bundle, and saves time and an economy of

appreciable paper.

  The components of the bundle being wound up in the reverse order to that of the bundle, the components of the sheets sensitive to shocks (intermediate and first),

  especially carbonless paper, are protected by the

  placing the least sensitive outer sheet, which avoids paper loss due to destruction

sensitive layers.

  Of course, the invention is in no way limited to the embodiment described and shown, it is capable of numerous variants accessible to humans.

  of art according to the applications envisaged, without deviating

ter of the scope of the invention.

Claims (9)

  1. Continuous printing process of the same order   graphic position on various sheets called for   form a predetermined number of composite bundles, no-   carbonless, process characterized in that a composite coil is formed by winding a continuous strip, the width of which corresponds to one of the dimensions of a sheet, or a multiple of this dimension, and which is composed of butted sections of strips of various papers, the nature of each of which corresponds respectively to that of one of the sheets constituting each bundle, -in that the composite strip is continuously printed   of which each of the successive sections corresponds respectively   vement to the set of each of the sheets necessary for the formation of the set of bundles, and in that   section the strip in printed sheets which, after   mining undesirable sheets encroaching on two contiguous sections, then assembling in the desired order, will form the bundles.   2. Method according to claim 1, character-   se in that we print the last strip section   called to form the cover sheets of the bundles.   3. Method according to one of claims 1 and   2, characterized in that the settings and settings of the printing machine are carried out on an excess portion   initial of the first section of the composite strip.   4 Method according to one of claims 1 to 3,   characterized in that at the end of printing we leave in   the printing machine, as a starter tape for an operation   subsequent printing, an excess portion   end of the last stretch of the composite strip.   5. Composite reel of papers for the graphic printing of sheets of a predetermined number of   bundles according to the method of one of claims 1   at 4, reel characterized in that it consists of a continuous wound strip formed of several sections   strips of paper (1,2,3) of various kinds abutted.   6. Reel according to claim 5, characterized in that the strip section (1) wound first   around the core (4) of the reel is paper of the na-   ture of cover sheets of bundles.   7. Coil according to one of claims 5 and   6, characterized in that the section of strip wound last (3) and forming the outside of the reel is in   paper of the nature of the last sheets of the bundles.   8. Coil according to one of claims 5 to   7, characterized in that at least one of the first (1) and last (3) sections of the composite strip is longer than the intermediate sections.   9. Coil according to one of claims 5 to 8,   characterized in that the strip sections (1, 2) are made of sensitive carbonless paper, with the exception of the wound section (3)   last and forming the outside of the coil.