FR2656830A1 - METHOD AND DEVICE FOR MANUFACTURING CONTINUOUS SHEET COMPRISING LABELS. - Google Patents

Abstract

The manufacture of the sheet consists of forming a cut line (18a) corresponding to the contour of an opening (18) made in the base label paper (14A) of a laminate by cutting this paper between its main surface and its surface. other main surface; peeling off the laminate an unnecessary part (19) corresponding to the opening in the boundary between the adhesive layer and the release paper, using a rounded peel plate (58) and a curved guide (60), forming a line cutting (14a) corresponding to the outline of the label on the label base paper by cutting the latter between its major surface and its other major surface so as to give the label base paper a predetermined configuration, and removing unnecessary part of the label base paper from the label. The guide (60) is designed to hold in place the part between the lines (18a) and (14a) when the unnecessary part (19) comes off.

Description

1 2656830

  The present invention relates to a method for producing a continuous sheet having labels and a device for carrying out the method, and more particularly to a method for making said sheet wherein labels, each having an opening at a predetermined location, adhere removable to a separation base paper in the longitudinal direction, regular intervals being provided between labels, and the device for performing the method. In recent years, there has been an increasing demand for the development of a method for efficiently manufacturing a continuous sheet having labels in which an opening is formed and which adhere removably to the separation base paper. According to the conventional method of manufacturing such a sheet, the label and the base paper of

separation are hallmarked.

  However, in the sheet thus manufactured, a hole is also provided on the base paper. Therefore, it is difficult to maintain the sheet.

continue on a roll.

  The sheet is mounted on an automatic label gluing device to detach the labels from the base paper and glue them onto articles, one after another. The labels are not appropriately detached from the base paper when As a result, the labels are curled in the vicinity of the opening. Thus, they can not be glued to the articles at a predetermined position. The above method is not suitable for manufacture. in series and the cost price is high.

2 2656830

  Accordingly, the present invention is directed to a method of mass-producing a continuous sheet comprising labels, each label having an opening, and releasably adhering to the release base paper efficiently and inexpensively, and a device for putting into practice

of the process.

  A first, prior invention concerned a method of manufacturing a continuous sheet comprising labels comprising the steps of: forming a laminate by removably adhering a base paper having labels to a release base paper by means of an adhesive layer; forming a cutting line corresponding to the contour of an aperture of predetermined shape and formed in the base paper of the laminate by cutting the base paper between its main surface and its other main surface; detaching from the laminate a useless portion surrounded by the contour corresponding to that of the opening of the base of the label in the boundary between the adhesive layer and the base paper; guiding the laminate in the insertion direction so that the base paper, with the exception of the useless portion, is not detached from the laminate; forming a cutting line corresponding to the outline of the label on the base paper by cutting the paper between its main surface and its other main surface so as to give it a predetermined configuration; and remove from the label

  a useless part of the base paper.

  A second, previous invention was directed to a device for manufacturing a continuous sheet having labels, which included an introduction means for sequentially introducing a formed laminate by removably adhering a label base paper to a separation base paper at a base. means of an adhesive layer applied to the back of the label base paper; a way of

3 2656830

  forming a cutting line for cutting the label base paper fed together with the separation base paper to form a cut line corresponding to the outline of a predetermined configuration opening; detachment means for detaching from the laminate a useless portion surrounded by the cutting line corresponding to the contour of the opening of the label base paper in the boundary between the adhesive layer and the separation base paper; guide means for guiding the laminate in the insertion direction so that the label base paper except for the useless portion is not detached from the laminate; a cut line forming means for cutting the label base paper fed together with the separation base paper to form a cut line corresponding to the outline of a predetermined configuration label; and unnecessary part removal means to remove a portion of the label

  unnecessary label base paper.

  According to the present invention, after forming a cutting line corresponding to the contour of an opening on the label base paper, only a waste portion surrounded by the cut line is detached from the laminate comprising the base paper. The laminate is introduced in the insertion direction so that the guiding means prevents the label base paper from becoming detached from the laminate with the exception of the waste portion. which is surrounded by the cut line corresponding to the contour of the opening. In this way, the opening is formed only on the label base paper. More precisely, in a continuous sheet comprising labels which are manufactured in this way. the opening is not formed on the separation base paper,

but on the label.

  Therefore, when gluing the label onto an article by an automatic machine, the label does not warp when applied pulling Therefore, the labels can be stuck to the articles regularly. The present invention will be well understood

  in the following description made in connection with

  the accompanying drawings, in which: FIG. 1 is a diagram of an example of a manufacturing device for carrying out the manufacturing method of the present invention; Fig. 2 is a perspective view of a continuous sheet having labels manufactured by the device of Fig. 1; Figure 3 is a sectional view taken along the line III-III of Figure 2; Figs. 4 and 5 are plan views of a main portion showing variants of a continuous sheet having labels, made in accordance with the present invention, Fig. 4 being a view showing a sheet provided with rectangular openings; and FIG. 5 is a sheet showing labels and circular openings. FIG. 6 is a perspective view of an exemplary cover guide. FIG. 7 is a diagrammatic view of FIG.

  perspective of a variant of the guide of Figure 6.

  Figure 1 is a view of an example of a manufacturing device for carrying out the method of the present invention; FIG. 2 is a perspective view of a continuous sheet provided with labels, manufactured with the device of FIG. 1, and FIG. 3 is a sectional view taken on

  along line III-III of Figure 2.

  A continuous sheet 10 provided with labels comprises a strip-shaped base paper 12 The back surface of a label 14 removably adheres to a main surface of the paper 12

2656830

  by means of a layer 16 of adhesive formed on the rear face of the label 14 The labels 14 are spaced apart from each other at regular intervals in the longitudinal direction of the sheet 10 The label 14 has, for example, an elliptical opening 18

  which is arranged approximately at its center.

  The opening 18 can have any configuration; for example it may be rectangular or circular as shown in FIGS.

5, respectively.

  The separation base paper 12 is made of, for example, a long, narrow sheet of paper and synthetic resin. The paper 12 is coated with a release agent such as a silicone so as to form a layer on top of it. As a result, the label 14 adheres to

  Removable way to the separation base paper 12.

  We will now describe a method of manufacturing the continuous sheet 10 according to the present invention, in connection with the device, given as a

example in Figure 1.

  First, a long strip-like base paper 14A is adhered to the main surface of the release base paper 12 by means of an adhesive layer 16 obtained by applying a pressure-sensitive adhesive to the back side of the Thus, a laminate is obtained. The laminate is wrapped around a holding roll 52 of a manufacturing device 50 so as to introduce it into each of the

  stages of manufacture of the continuous sheet 10.

  The manufacturing device 50 comprises the roll 52 for holding the laminate. One end of the laminate, consisting of the base paper 14 A for labels and the separation base paper 12, is unwound and guided to a line-forming device 54. The device 54 serves as a means for forming a cutting line which corresponds to the configuration of the opening 18 and a cutting line.

6 2656830

  which corresponds to the outline configuration of

the label 14.

  In order to form the label 14 having the aperture 18 of predetermined shape at its center, the device 54 cuts the label base paper 14 A between its upper surface and its lower surface, hence the formation of a cutting line 18a of the inner edge of the label which corresponds to the configuration of the opening 18 and a cutting line 14a of the outer edge which corresponds to the contour configuration of the label 14 The device 54 comprises a die roll 56 mounted on its surface and having cutting edges arranged in correspondence with the configuration of the opening 18 of the label 14 and cutting edges arranged in correspondence with the contour configuration of the label 14 so that all the cutting edges are in the same plane The roller 56 forms the cutting line i 8a of the inner edge and the cutting line 14a of the outer edge on the paper 14 A The device 54 can be a c flat-type die-array having cutting edges corresponding to the configuration of the opening 18 and the

outline of the label 14.

  The laminate comprising the paper 14 A on which the cutting lines 18a and 14a are formed is

  guided to a detachment plate 58.

  The detachment plate 58 has the function of detaching a waste portion 19 surrounded by the cutting line 18a of the inner edge of the laminate comprising the base paper 14A on which the cutting lines 18a and 14a are formed. 19 is detached from the laminate in the boundary between the adhesive layer 16 and the release base paper 12 The separation base paper 12 and the label base paper 14 A on which the line 18a is formed. of cutting the inner edge, introduced horizontally along the detachment plate 58, are folded down and then moved down in the direction of

7 2656830

  Thus, the waste portion 19, surrounded by the cutting line 18a of the inner edge, is detached from the laminate comprising the paper 12 and the paper 14A on which is formed the line 18a of cut of the inner edge II As a result, the waste portion 19 surrounded by the line 18a moves horizontally

thanks to its rigidity.

  The end portion 59 of the detachment plate 58 has a round, or approximately circular, section. The paper 12 and the paper 14 A are folded downward when they reach the end portion 59. A guide covering 60 serving the The guide of the laminate in the insertion direction is situated slightly higher than the detachment plate 58. The guide 60 prevents a portion 14b of the label lying between the cutting line 18a and the line of separation. cut 14a 14 A base paper does not come off the laminate when folded to the part

end 59

  In connection with FIG. 6, the guide 60 has a curved contact portion 60a. The width of the portion 60a is approximately the same as that of the laminate and is curved in correspondence with

  the end 59 of the detachment plate 58, that is,

  say it has an approximately circular section.

  An approximately rectangular through-hole 61 is provided in the center of the portion 60a in such a manner that its area is greater than that of the scrap portion 19 surrounded by the cutting line 18a of the inner edge formed on the base paper. 14a has laminate which is introduced along the plate 58. The guide 60 comprises flat, rectangular contact portions 60b and 60c placed at both sides of the contact portion 60a The width of the parts 60b and 60c is the same as that of the contact part

8 2656830

  60 b Part 60 b is longer than the

part 60 c.

  The guide 60 comprising the curved contact portion 60a which is in one piece with the flat contact portions 60b and 60c is made of metal or plastic material The guide 60 is obtained by folding a rectangular metal plate to give it the shape a J in correspondence with the configuration of the detachment plate 58 with which the laminate is in contact and leaving the rectangular through hole 61 at

center of the folded part.

  The guide 60 is placed at a place a little higher than the detachment plate 58, parallel to the surface of this plate. The hole 61 formed around the curved contact portion 60a corresponding to a position in which the discard portion 19 is released from the folded laminate at the end portion 59 of the plate 58 Therefore, the waste portion 19 surrounded by the cutting line 18a of the inner edge of the laminate comprising the separation base portion 12 and the base paper 14 A is folded at the end portion 59. As a result, the circular waste parts 19 are released, one by one, from the paper 14 A and inserted into the through hole

61 of the guide 60.

  The guide 60 comprising the curved contact portion 60a and the flat contact portions 60b and 60c prevents the portion 14b from being detached from the laminate

  except for the waste part 19.

  In this way, the waste portion 19 released from the laminate by the plate 58 falls into a container B through the through hole 61 in the guide 60. More precisely, the opening 18 is formed only on the base paper. 14 A laminate consisting of the separation base paper 12 and the label base paper 14 A The guide 60 may not

  understand that the curved portion of contact 60 a.

9 2656830

  Next, the laminate comprising the label base paper 14A which has been conferred the configuration of the label 14 following the detachment of the waste portion 19 is guided to a pair of separation rollers 68 and 70 by

  intermediate guide rollers 62, 64, and 66.

  In connection with FIG. 1, a scrap portion 15 of the laminate comprising the label base paper 14 A which has received the configuration of the label 14 is wrapped around a trimming roller 72. The waste portion 15 may be detached from the laminate by a device comprising the rollers 68 and 70 as shown in FIG. 1 immediately after the formation of the predetermined configuration of the label 14 on the roll. the base paper 14 A by the

  54 device for forming cutting lines.

  In the resulting label sheet 10, the opening 18 is not formed on the separation base paper 12, but only on the label 14 Unlike a conventional continuous sheet containing labels, in which an opening is arranged on both the separating base paper and the label, the continuous web 10 having labels is greater in that, even if traction is applied to the separation base paper 12 and to the label 14 comprising the web. 18, can be wound around the winding roll 74 without buckling or being moved. Therefore, an automatic label gluing device, not shown, can correctly remove the label 14 from the base paper 12 and glue it to a article to a

appropriate position.

  The covering guide 60 can be replaced by two guides 82 and 84 which are obtained by cutting the guide 60 shown in FIG. 6 along its two lines.

  edges according to a predetermined width.

2656830

  In a manner similar to the guide 60, the guides 82 and 84 comprise curved contact portions 82a and 84a having the same shape as the end portion 59 of the detachment plate 58. 82 c are trained in

  two ends of the curved contact portion 82 a.

  In a similar manner, the flat contact portions 84b and 84c are formed at both ends of the curved contact portion 84. The guides 82 and 84 may be formed by arching a narrow quadrangular bar of plastic material to impart the shape of a J

  in correspondence with the detachment plate 58.

  The two guides 82 and 84 are each located at a location slightly higher than the plate 58 and extend along this plate. They are parallel to each other so that the gap between them is smaller than that of the laminate comprising the separation base paper 12 and the label base paper 14 A. The two guides 82 and 84 prevent detachment of the label portion 14b from the laminate except for the waste portion 19 encircled by the cutting line 18a of the inner edge and guide the

  laminate in the direction of introduction.

  Therefore, the waste portion 19 which has been detached from the paper 14 A at the right of the plate 58 falls into the container B through the space

separating the two guides 82 and 84.

  In the previous embodiment, the cutting line 14a of the outer edge corresponding to the contour of the label and the cutting line 18a of the inner edge corresponding to the contour of the opening of the label are formed simultaneously in the device. 54 of the cutting line, but the cutting line 14a and the cutting line 18a can be formed separately by different devices of FIG.

line cutting training.

  The present invention is not limited to the embodiments which have just been described, it is instead capable of modifications and

  variants that will occur to those skilled in the art.

122656830

Claims (10)

  A method of manufacturing a continuous sheet (10) comprising labels (14), characterized in that it comprises the steps of at:   forming a laminate by removably adhering a label base paper (14A) to a release base paper (12) with an adhesive layer (16); forming a cutting line (18 a) corresponding to the contour of an aperture (18) of predetermined configuration on the label base paper of the laminate by cutting the base paper between its main surface and its other major surface; detaching an unnecessary portion (19) surrounded by the section line corresponding to the contour of the base paper opening of the laminate in the boundary between the adhesive layer and the separation base paper; guiding the laminate in the insertion direction so that the label base paper, with the exception of the useless portion, is not detached from the laminate; forming a cut line (14a) corresponding to the outline of the label on the label base paper by cutting this base paper between its main surface and its other major surface, so as to impart to the base paper of label a predetermined pattern; remove from the label a useless part   (15) label base paper.   The manufacturing method according to claim 1, characterized in that the step of forming an opening in the label base paper comprises the step of detaching the portion corresponding to the aperture having the 13 2656830   predetermined configuration, the base paper of   separation by folding this base paper.   Apparatus for producing a continuous sheet (10) comprising labels (14), characterized in that it comprises: an insertion means (52) for sequentially introducing a laminate formed by removably adhering a paper of label base (14a) to a release base paper (12) with a layer of adhesive (16) applied to the back of the label base paper; cutting line forming means (54) for cutting the label base paper introduced together with the separation base paper to form a cut line corresponding to the contour of an opening (18) predetermined configuration; detachment means (58) for detaching from the laminate a useless portion surrounded by the cutting line corresponding to the contour of the opening of the label base paper in the boundary between the adhesive layer and the separation base paper; guide means (60) for guiding the laminate in the insertion direction so that the label base paper, except for the useless portion, is not detached from the laminate; cut line forming means (54) for cutting the label base paper fed together with the separation base paper to form a cut line corresponding to the outline of a predetermined configuration label; and unnecessary party detachment means so as to remove from the tag a useless portion basic label paper.   4 Device according to claim 3, characterized in that the cutting line forming means for cutting the opening of the paper 4 e 14 2656830   The label base and the cut line forming means for cutting the label base paper are formed on the same plane of a die roll. Apparatus according to claim 3, characterized in that the line forming means for cutting the opening of the label base paper and the cutting line forming means for cutting the label base paper are formed on the same plane of a matrix knife provided on a flat plate.   6 Device according to claim 3, characterized in that the detachment means comprises a detachment plate (58), of approximately circular section, for folding the paper of   label base at its end (59).   7 Device according to claim 3, characterized in that the guide means (60) comprises a guide of located at a slightly higher position   that of the detachment means (58).   8 Device according to claim 7, characterized in that the guide is formed so that the label portion between the outer edge and the inner edge of the label base paper (14A) of the laminate folded at the end of the plate of   detachment is not separated from the laminate.   Device according to claim 7, characterized in that the cover guide comprises   a curved contact portion (60 a).   Apparatus according to claim 7, characterized in that the curved contact portion comprises a through hole (61) larger than the useless portion surrounded by the cut line corresponding to the contour of the opening of the paper of the invention. label base.