GB2235176A

GB2235176A - Method of producing a continuum of labels

Info

Publication number: GB2235176A
Application number: GB9017408A
Authority: GB
Inventors: Tadashi Matsuguchi
Original assignee: Osaka Sealing Printing Co Ltd
Current assignee: Osaka Sealing Printing Co Ltd
Priority date: 1989-08-21
Filing date: 1990-08-08
Publication date: 1991-02-27
Also published as: NL9001843A; LU87788A1; DE4026144A1; CA2023247A1; IT9021269A1; FR2650975A1; IT9021269A0; IT1243785B; GB9017408D0; AU6029890A

Abstract

A method of manufacturing a continuum of labels (114) comprises: a step of sticking a label material paper (114a) to a release sheet material (112) by means of an adhesive layer (116); a step (156) of stamping labels of a predetermined shape out of the label material paper from one principal surface to the other principal surface; a step at a plate (156) of parting the label material paper and release sheet material from each other in the boundary plane between the adhesive layer and the release sheet material; a step (166, 168) of re-sticking the release sheet material to the stamped-out label material paper; and a step (168, 170) of parting unnecessary parts of the label material paper from stamped-out labels. Alternatively, the stamped-out label material paper may be re-adhered to a second release sheet material (Fig. 1 (not shown)). <IMAGE>

Description

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A METHOD OF MANUFACTURING A CONTINUUM OF LABELS The present invention relates to a method of manuf acturing a coninuum of labels and in particular to a label sticking device which automatically sends a continuum of labels stuck tentatively and releasably at a given interval along the longitudinal direction of the belt-like release sheet material, release the labels from the release material and have them stuck to an object.

Fig. 4 is an illustratory view showing an example of method of manufacturing a continuum of conventional labels, and Fig. 5 is an illustratory view showing an example of a continuum of labels manufactured by the conventional method of manufacturing a continuum of labels shown in Fig. 4.

When a belt-like release sheet material 3 with labels 1 tentatively stuck thereto by means of an adhesive layer 2 formed on the back of each label 1, this label 1 is, for instance, formed by stamping label raw paper in the given form by die-cutting by means of a stamping device 4 such as a die roll. The stamp-waste 5 of the stamped-out label raw paper is wound on a stamp-waste winding reel 6 and, and the necessary labels 1 only are tentatively stuck to the release 1 0 seat material 3. And the continuum of labels thus manufactured are rewound by a winding roller 7 and wound layer by layer on an automatic label sticking device (not shown).

In the continuum of labels manufactured by such conventional method the stamped groove 8 thus formed by the stamping device 4 is sunken below the surface of the release layer of the release sheet material 3 and, as shown in Fig. 4, the label stamp-out impression 9 is formed.

Hence, when this continuum of conventional labels are used charged in an automatic label sticking machine (not shown), the label is not normally stripped and sometimes the release sheet material 3 is subjected to a tensile force layer by layer from the release sheet material 3 and, the label type stamp-out impression 9 is broken and cut off, this causing a trouble.

1 A principal object of the present invention, therefore, to provide a method, of manufacturing a continuum of labels which can be stripped off without the release sheet being broken to be cut off.

The present invention relates to a method of manufacturing a continuum of labels comprising a step of stamping from one principal surface to the other principal surface, a step of causing the label material paper and the 2 z release sheet material to part in the boundary surface between the adhesive layer and the release sheet material, a step of tentatively resticking the release sheet material to the stamp-out label material paper and the release sheet material and a step of parting the unnecessary parts of the label material paper from the labels.

According to the present invention, since, for instance, after stamping a label material paper in a given label form, another release sheet material is tentatively adhered to a stamped-out label material paper instead of a release sheet material, a continuum of labels forming no stamping impression in the release sheet material can be manufactured. Hence, with the manufactured continuum of labels are, for instance, there is no risk of the release sheet material being broken at the stamp-out impression and cut off even when the continuum of labels are used charged in an automatic label sticking device, any trouble being thus precluded.

Embodiments of the invention will be illustrated by reference to the accompanying drawings of which Fig. 1A is an illustratory view showing an example of apparatus for executing a manufacturing method according to 3 1 the present invention and Fig. 1B is a sectional illustratory view showing the es-.en-parts.

Fig. 2 is a sectional illustratory view showing a continuum of labels manufactured by the manufacturing apparatus shown in Fig. 1A.

Fig. 3 is an illustratory view showing an example of manufacturing apparatus for executing another manufacturing method according to this invention.

Fig. 4 is an illustratory view showing an example of conventional method of manufacturing a continuum of labels, on which the present invention is based.

Pig. 5 is an illustratory view showing an example of continuum of a continuum of labels manufactured by a conventional method shown in Fig. 4.

1 The continuum of labels 10 includes a belt-like release base paper 13 as release sheet material and to one principal surface, of the release base paper 13 labels 16 are tentatively stuck by means of each one adhesive layer formed on 4 the backside thereof. The release base paper 13 includes, f or instance, a belt-like sheet material such as paper and synthetic resin and on the surface of the sheet material there is formed a layer of releasing agent such as silicone. Hence the label 14 is tentatively and releasably stuck to the release base paper 13.

Next, explanation is given below about an example of the method of manufacturing the continuum of labels 10 with reference to a typical manufacturing apparatus shown in Fig. 1A.

First, a laminate formed by tentatively sticking a belt-like label material paper 14a as material of the label 14 to the principal surface on the releasing agent layer side of the belt-like release base paper 12 by means of the adhesive agent layer 16 formed by printing or coatingi for instance, a pressure-sensitive adhesive is provided and this laminate is wound on a retaining roller 52 of an apparatus 50 and then successively sent to the step of manufacturing a continuum of labels.

This apparatus 50 includes a retaining roller 52 for retaining the aforementioned laminate in roll form. The laminate of label material paper 14a and the release base paper 12 retained by the retaining roller 52 has one end thereof unrolled and the unrolled end is successively led to the label stamping device 54.

c This label stamping device 54 is for stamping labels of a predetermined shape out of the label material paper 14a and its surface includes a die roll 56 having a cutting edge along the contour of the label 14 formed in its surface. After stamping in the predetermined label shape by this die roll 56 this laminate is. as shown in Fig. 1B, divided by a stamping groove 32 into labels 14 and stamping wastes 30 (unnecessary parts of the label material paper 14 other than the stamped-out labels).

The laminate including the label material paper 14a stamped out in a predetermined label shape by the label stamping device is led to a parting plate 58.

This parting plate 58 is for parting the stamped label material paper 14a and the release base paper 12 from each other in the boundary plane between the adhesive layer 16 and the release base paper 12. It is so arranged that the release base paper 12 sent along the horizontal transfer direction is suddenly turned back by this parting plate 58 and pulled out in the opposite direction, the release base paper 12 and the label material paper 14a are thereby parted from each other and the label material paper 14a only moves forward by its rigidity.

And the release base paper 12 stripped by the parting plate 58 is wound up by a winding roller 60.

Meanwhile, the belt-like release base paper 13 prepared 6 1 1 separately is retained in roll form by another retaining roller 62. The release base paper 13 retained by this retaining roller 62 has one end thereof unrolled and the unrolled end is led to a tentatively sticking plate 64. And by this tentatively sticking plate 64 the stamped-out label material paper 14a moving straight from the parting plate 58 with its adhesive layer 16 is tentatively stuck to the release base paper 13.

The interval between the parting plate 58 and the tentatively sticking plate 64 is smaller than the length of the label 14 in the direction of its progress.

The stamping wastes 30 of the label base plate 14a of the stamped-out label material paper 14a (the unnecessary parts of the label material paper 14a other than the stamped-out labels) are, as shown in Fig. 1A, wound up by a waste removing roller 68 while the labels 14 are tentatively stuck to the release base paper 13 by a pressing roller 66 which works in cooperation with the tentatively sticking plate 64 so that the necessary labels 14 only are tentatively stuck to the release base paper 13. And the continuum of labels 10 thus formed are wound by a winding roller 70 in roll form.

With the continuum of labels 10 thus manufactured there is no risk of any stamp-out impression being formed in the release base paper 13 as shown in, for instance, Fig. 4.

7 Hence, the labels can be stripped from the release base paper without any risk of the release base paper 13 being torn and cut off.

Fig. 3 is an illustratory view showing an example of manufacturing apparatus for execution of another manufacturing method according to the present invention and Fig. 4 is a sectional illustratory view of a continuum of labels manufactured by the use of the manufacturing apparatus shown in Fig. 3.

This continuum of labels 110 include a release base paper 112 as a beltlike release sheet material and on one principal surface of this release base paper 112 labels 114 with an adhesive layer 116 formed on the back of each thereof are tentatively stuck longitudinally at a given interval. The release base paper 112 may be a belt-like sheet material of, for instance, paper and synthetic resin. Each label 114 is tentatively and releasably stuck to the release base paper 112.

Now, an example of method for manufacturing the continuum of labels 110 will be described with reference being made to a typical manufacturing apparatus shown in Fig. 3.

First, a laminate made by tentatively sticking a beltlike label material paper 114a, from which the labels 114 are stamped out, to the adhesive layer-side principal 8 W I II surface of the belt-like release base paper 112a by means of the adhesive layer 116 formed by printing or coating, for example, a pressure- sensitive adhesive, this laminate is wound on a retaining roller 152 of the device 150 and then unwound and sent to the step for manufacturing a continuum of labels.

This device 150 includes a retaining roller 152 for retaining the aforementioned laminate in roll form. The laminate of the label material paper 114a and the release base paper 112 retained by the retaining roller has one end thereof unrolled and the unrolled end is led to the parting plate 154. This parting plate 154 is for parting the label material paper 114a and the release base paper 112 fron. each other &t the boundary plane (line) between the adhesive layer 116 and the release base paper 112. It is so arranged that, as the release base paper 112 sent along the horizontal transfer direction is suddenly turned back by this parting plate 154 to be pulled out in the opposite direction, the release base paper 112 and the label material paper 114a are parted from each other and the label material paper 114a only continues moving straight for its rigidity.

The label material paper 114a moving straight from above the parting plate 154 along the progressing direction is led continuously to the label stamping device 156. This label stamping device 156 is for stamping the predetermined 9 shape of labels out of the label material paper 114a and includes a planar, so-called. die cutter 157 having a cutting edge in its surf ace matching the contour of a given label. Under this die cutter 157 there is provided a guide plate 158. On the surface of this guide plate 158 (surface in contact with the surface of the adhesive layer 116 of the label material paper 114a) there is formed a release layer by coating with a releasing material such as a releasing agent. Hence, even if the label base paper 114a should pass the surface of this guide plate 158, there is no risk of the label material paper 114a with its adhesive layer 116 sticking to the guide plate 158. And labels of a predetermined shape are stamped out of the label material paper 114a by this die cutter 157. The label stamping device 156 may as well be one including the so-called die roll having a cutting edge formed thereon.

The laminate including the label material paper 114a with labels of a predetermined shape stamped out by the label stamping device 156 is led through between a tentatively re-sticking roller 166 and a pressing roller 168.

Meanwhile, the release base paper 112 stripped by the parting plate 154 has its moving direction converted by a conversion rollers 162 and 164, and the release base paper 112 with its moving direction converted by the aforementioned rollers 162 and 164 is restored to be in the original Gmoving direction and is tentatively re-stuck to the surface of the adhesive layer 116 of the label material 114a by the tentatively resticking roller 166.

In this case the interval between the label stamping device 156 on the one hand and the tentatively re-sticking roller 166 and the pressing roller 168 on the other shall be less than the length of the label 114 along its progressing direction. The label stamping impression formed in the label material paper 114 by the label stamping device 156 is temporarily adhered lest the die-cut label 114 and the stamping wastes (unnecessary parts of the label material paper 114a other than the labels 114) are completely separated.

The labels 114 are stamped out of the label material paper 114a and are tentatively stuck to the release base paper 112 by the pressing roller 168 working in cooperation with the tentatively re-sticking roller 166, while the stamping wastes of the label material paper 114a are wound by the roller 170 and the necessary label 114 only are tentatively re-stuck to the release base paper 112. And the continuum of labels 110 thus formed are wound by a winding roller 172 in roll f orm and retained in such a manner that it can be charged in an automatic label sticking device (not shown).

Although the present invention has been fully described 11 by way of example with reference to the accompanying drawings, it is to be noted here that various changes and modifications will be apparent to those skilled in the art.

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Claims

A method of manufacturing a continuum of labels comprising:

a step of tentatively sticking a label material paper to a release sheet material by means of an adhesive layer; a step of stamping labels of a predetermined shape out of said label material paper from one principal surface to the other principal surface; a step of parting said label material paper and said _release sheet material from each other in the boundary plane between said adhesive layer and said release sheet material; _a step of tentatively re-sticking said release sheet material to said stamped-out label material paper,.

and a step of parting unnecessary parts of said label material paper from stamped-out labels.
2. A method of manufacturing a continuum of labels according to claim 1, wherein said parting step comprises a sub-step of parting said stamped-out label material paper and said release sheet material from each other in the boundary plane between said adhesive layer and said release sheet material and said tentatively sticking step comprising a sub-step of tentatively sticking another release sheet material to said stamped-out label material paper.

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3.

A method of manufacturing a continuum of labels according to claim 1, wherein said stamping step comprising a sub-step o f stamping from one principal surface to the other is for obtaining labels of a predetermined shape by parting said label material paper and said release sheet material from each other in the boundary plane between said adhesive layer and said release sheet material and said tentatively sticking sub-step comprises a step of tentatively re-sticking said release sheet material to said stamped-out label material paper.
4. A method of manufacturing a continuum of labels substantially as described herein by reference to any one of Figures 1 to 3.
5. Apparatus for manufacturing a continuum of labels the apparatus compring i means for tentatively sticking a label material to a release sheet material b.means of an adhesive layer; ii means for stamping labels out of the label material from one principal surface to the other principal surface; iii means for parting the label material from the release sheet in the boundary plane between the adhesive layer and the release sheet; iv means for tentatively resticking the release to the stamped out label material; and v means for parting unnecessary parts of the label material from stamped out labels.
6. Apparatus for manufacturing a coninuum of labels substantially as described herein by reference to any one_of Figures 1 to 3.
7. A continuum of labels obtainable by a process as claimed in any one of claims 1 to 4.

Published 1991 at The Patent Office. State House. 66/71 High Holborn. London WCIR4TP. Further copies maybe obtained from Sales Branch. Unit 6. Nine Mile Point. Cwmfelinfach, Cross Keys, Newport NP1 7HZ. Printed by Multiplex techniques ltd. St Mary Cray. Kent, 1.

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