JP3763488B2 - Pressure sensitive adhesive label production equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a manufacturing apparatus of a pressure-sensitive adhesive labels, and more particularly to a manufacturing apparatus of a pressure-sensitive adhesive labels having improved releasability of the label pieces from the backing.
[0002]
[Prior art]
Conventional labels or seals are generally pressure-sensitive adhesive labels in which a label material having a pressure-sensitive adhesive layer is temporarily attached to a backing sheet having a release agent layer. The strip-shaped label material is temporarily attached to the strip-shaped mount, and the label material is cut (trimmed or die-cut) at a predetermined pitch to form a plurality of single-leaf labels, and these label strips are temporarily attached to the mount. It has a configuration.
[0003]
An outline will be given based on FIGS. FIG. 8 is a cross-sectional view of the pressure-sensitive adhesive label 1, and the pressure-sensitive adhesive label 1 has a backing sheet 2 for peeling and a label material 3. The label material 3 is formed as a single-leaf label piece 3A by cutting or trimming (die cutting).
[0004]
A release agent layer 4 is formed on the front side of the mount 2, and a pressure-sensitive adhesive layer 5 is formed on the back side of the label material 3 (label piece 3 </ b> A).
[0005]
In order to manufacture the pressure-sensitive adhesive label 1, a method is adopted in which the cutting blade 6 is pressed so as to be pushed from the surface side of the label material 3 toward the mount 2 side. Each of the label pieces 3A cannot be obtained unless the pressure-sensitive adhesive layer 5 is completely cut, and the pressure-sensitive adhesive layer 5 of the label material 3 and the release agent layer 4 of the mount 2 are very thin. For this reason, scratches or cuts (cutting grooves 7) may be formed on the surface of the mount 2 during cutting.
[0006]
Therefore, as shown in the drawing, the pressure-sensitive adhesive layer 5 may enter the cutting groove 7 with the cutting operation, and the peelability of the label piece 3A from the mount 2 may be impaired. For example, FIG. 9 is a cross-sectional view showing the peeling operation of the label piece 3A, in which only the mount 2 is turned and transferred around the turning pin 8 for peeling, and the label piece 3A is peeled from the mount 2 by its rigidity. (The phantom line in the figure), as a result of the pressure-sensitive adhesive layer 5 penetrating into the cutting groove 7, the leading end 3 B of the label piece 3 A turns around the cutting groove 7 of the mount 2, and the label piece 3 A also comes with the mount 2. There is a problem that the turning pin 8 for peeling does not peel off from the mount 2.
[0007]
Further, in order not to form the cutting groove 7 that impedes such peelability, it is necessary to finely adjust the interval between the cutting blade 6 and the mount 2, and further fine adjustment requires skill, etc. It was an obstacle to improving label productivity. In addition, there is a problem that the mount 2 and the label material 3 are wasted for test cutting.
[0008]
Such a problem is a serious problem particularly in the pressure-sensitive adhesive label 1 that requires a mechanical automatic peeling operation such as a general seal, a measurement label, or a label for various printers.
[0009]
In order to solve such problems in label production, for example, in “Label production method and apparatus” disclosed in Japanese Patent Publication No. 7-37089, the cut label piece 3A is once peeled (separated) from the mount 2 and again mounted. 2 when temporarily attaching the label piece 3A so that the end of the label piece 3A is located at a position different from the position of the cutting groove 7, that is, deviating from the cutting groove 7, Trying to ensure the peelability.
[0010]
However, also in this manufacturing method, the label material 3 and the pressure-sensitive adhesive layer 5 are cut so that the cutting blade 6 is pushed from the surface side of the label material 3 (the side opposite to the pressure-sensitive adhesive layer 5). Therefore, when the label piece 3A is peeled off from the mount 2 after this cutting, there is no change in the state as shown in FIG. 8, and when the label piece 3A is peeled off from the mount 2 It cannot be a fundamental solution for improving the peelability of the film.
[0011]
Further, in “Label manufacturing method and apparatus for carrying out this method” according to Japanese Patent Laid-Open No. 1-319089, the label material 3 is peeled (separated) from the mount 2 before being cut and remains separated from the mount 2. This is cut into a label piece 3A, and then the label piece 3A is re-temporarily attached to the backing sheet 2 to ensure releasability.
[0012]
However, also in this manufacturing method, even if the mount 2 and the label material 3 are in a separated state, the cutting blade 6 is pushed from the surface side of the label material 3 (the surface side opposite to the pressure-sensitive adhesive layer 5). In order to cut the pressure sensitive adhesive layer 5 completely, it is necessary to push the cutting blade 6 from the label material 3 side to the pressure sensitive adhesive layer 5 side. Therefore, there is a problem in ensuring the certainty of cutting.
[0013]
In addition, the pressure-sensitive adhesive layer 5 at the tip 3B of the cut label piece 3A hangs down to the mount 2 side, and there is a problem in that the label piece 3A may be inadvertently transferred and peeled off. It cannot be a fundamental solution for improving the peelability when the piece 3A is peeled from the mount 2.
[0014]
[Problems to be solved by the invention]
The present invention has been considered that bite the problems described above, and its object is to provide an apparatus for manufacturing a pressure-sensitive adhesive labels which can improve the releasability of the label material or label piece from the backing.
[0015]
The present invention, without forming a cut groove to mount, and to provide an apparatus for manufacturing a pressure-sensitive adhesive labels which are capable of cleaving a label material to a plurality of labels piece.
[0016]
The present invention, without pressure-sensitive adhesive bites into mount, and to provide an apparatus for manufacturing a pressure-sensitive adhesive labels which are capable of cleaving a label material to a plurality of labels piece.
[0017]
The present invention aims to provide an apparatus for manufacturing a pressure-sensitive adhesive label that can be taken time to fine-tune the cutting blade in the production of pressure-sensitive adhesive label excellent in productivity without.
[0018]
[Means for Solving the Problems]
That is, the present invention cuts the label material in a state separated from the mount, and operates the cutting blade from the pressure-sensitive adhesive layer side, not from the surface side of the label material separated from the mount, defined by noting that, the label material having a pressure-sensitive adhesive layer, an apparatus for producing a pressure-sensitive adhesive labels temporarily attached to the backing sheet having a release agent layer, once separated the label material from the backing sheet A label mount separating means, a vacuum means for sucking the label material, and a surface of the label material is sucked by the vacuum means and cut from the pressure-sensitive adhesive layer side at a predetermined pitch to form a plurality of label pieces . Label cutting means to form, and label re-temporary attaching means for re-attaching these label pieces to the mount, the label cutting means having a cutting blade provided at a predetermined pitch, And a release material layer, an apparatus for manufacturing a pressure-sensitive adhesive label comprising the die cut roller forming the.
[0019]
In the above apparatus, the die-cut roller is provided with an elastically deformable sponge and the peelable material layer on the outermost layer, the opening for cutting is formed at a predetermined pitch, and the cutting blade is provided in the opening for cutting. the shall be the feature.
[0020]
In the above device, the sponge is configured such that the cutting blade elastically deforms when the label material pushes the pressure-sensitive adhesive layer, and separates the pressure-sensitive adhesive layer from the cutting blade after the cutting. It shall be the.
In the above apparatus, the vacuum means is a columnar vacuum base roll.
[0021]
As a label cutting means for cutting the label material, a cylindrical (or flat plate) die cut having a cutting blade and a cylindrical (or flat plate) base as a vacuum means are provided, and other than the die cutting cutting blade. If the peelable material layer is formed on the part, it is possible to prevent the pressure-sensitive adhesive layer of the label material from adhering to the surface (peripheral surface) of the die cut in accordance with the push-off operation with the base. . In addition, the cutting blade and the peelable material layer operate on the same member called die cutting, so that the operation control is easy, and the cutting blade is accompanied with the cutting operation as in the case where these are provided on separate members. Does not cut the peelable material layer.
[0022]
Apparatus for manufacturing a pressure-sensitive adhesive label according to the present invention, the label material in the state separated from the mount, rather than from the front surface side thereof, to a label piece from the pressure-sensitive adhesive layer side by operating the label cutting means Therefore, the pressure-sensitive adhesive layer can be cut first, and the pressure-sensitive adhesive layer that has been a problem in the past may be formed in order to ensure poor cutting or pressure-sensitive adhesive layer cutting It is possible to avoid the formation of a certain cutting groove and the time taken for fine adjustment therefor to increase the productivity in manufacturing.
[0023]
Further, since the cutting groove is not formed on the mount, the problem that the label piece re-attached to the mount is difficult to peel can be solved, and the peelability can be improved.
[0024]
Furthermore, since the pressure-sensitive adhesive layer has a curved shape on the surface side (or in the surface direction) of the label piece at the front end of the label piece, the peelability from the mount is also improved from this point. be able to.
[0025]
Also, when cutting the upper Symbol label material, said vacuum means, forming a scrap removal unit with the if the surface side of the label material to the label material such attractable vacuum base roll and, the label piece when cutting Also in this case, the waste removing portion and the label piece can be integrated in the same plane, and this can be normally transferred even when separated from the mount.
[0026]
In addition, after re-attaching the label material after cutting | disconnection to a base_sheet | mounting_paper, it can be made a pressure-sensitive adhesive label finally by separating the said scrap removal part from label material (label piece).
[0027]
Further, when the label material is cut, the labels are formed by the vacuum means even when the label piece is formed by cutting along the cutting line orthogonal to the transfer direction without forming the above-described scrap removing portion. Since the transfer is possible while sucking the strip, the label strip can be transported normally even if it is separated from the mount.
[0028]
DETAILED DESCRIPTION OF THE INVENTION
Next, the pressure-sensitive adhesive label 10 according to the first embodiment of the present invention, its manufacturing method, and its manufacturing apparatus 11 will be described with reference to FIGS. However, the same parts as those in FIGS. 8 to 9 are denoted by the same reference numerals, and detailed description thereof will be omitted. FIG. 1 is a schematic explanatory diagram of a manufacturing apparatus 11 for a pressure-sensitive adhesive label 10. The manufacturing apparatus 11 for a pressure-sensitive adhesive label 10 includes a label raw material 12 supply means 13, a label mount separating means 14, and a mount guide. Means 15, label cutting means 16, label re-attachment means 17, scrap removing means 18, and winding means 19 for pressure-sensitive adhesive label 10.
[0029]
The supply means 13 for the label raw material 12 holds the label raw material 12 made of the base 2 and the label material 3 as in the conventional pressure-sensitive adhesive label 1 (FIG. 8) in a roll shape, and labels the label base 12 in the direction of the label base separation means 14. The raw material 12 is sent out.
[0030]
The label mount separating means 14 temporarily separates (peels) the mount 2 and the label material 3, and has a separation roller 20, in which the mount 2 is directed toward the mount guide means 15 in the direction of the label material 3. Is transferred in the direction of the label cutting means 16.
[0031]
The mount guide means 15 has a first guide roller 21 and a second guide roller 22, and the label re-attachment means 17 bypasses the label cutting means 16 for the mount 2 separated from the label material 3. I will guide you through.
[0032]
The label cutting means 16 is provided along the label transfer path 23 between the label mount separating means 14 and the label re-attachment means 17, and cuts the label material 3 from the pressure-sensitive adhesive layer 5 side. A label piece 12A corresponding to the label piece 3A (FIG. 8) is manufactured, and includes a vacuum base roll 24 and a die-cut roll 25 for cutting.
[0033]
The vacuum base roll 24 rotates in synchronization with the die-cut roll 25 by a driving means (not shown) in a state where it is in contact with the surface side of the label material 3. A plurality of vacuum holes 24A are formed in the vacuum base roll 24 in the radial direction so that the label material 3 can be sucked to the outer peripheral surface and functions as a vacuum means. FIG. 2 is a perspective view of the vacuum base roll 24.
[0034]
Although the die-cut roll 25 is drawn apart from the vacuum base roll 24 in the drawing, the label material 3 is sandwiched between the die base roll 24 and the vacuum base roll 24 in actual cutting operation, and the back side of the label material 3 (pressure-sensitive) It rotates in contact with the adhesive layer 5 side).
[0035]
However, the die cut roll 25 has a center die cut roll main body 26, an intermediate silk sponge 27, and a peelable material layer 28 in the outermost layer portion.
[0036]
The die-cut roll body 26 has a cutting blade 29 for cutting a label material (die cutting) on the surface thereof. The cutting blade 29 is in direct contact with the pressure-sensitive adhesive layer 5 of the label material 3 through the opening 30 for cutting formed between the silk sponge 27 and the peelable material layer 28, and the pressure-sensitive adhesive layer 5 and the label. The material 3 can be pushed through.
[0037]
However, the cutting operation by the cutting blade 29 is ensured by controlling the vacuum base roll 24 and the die cutting roll 25 so that the cutting blade 29 and the vacuum hole 24A do not match each other.
[0038]
FIG. 3 is a plan view showing a cut shape of the label piece 12A formed on the label material 3 and a plane portion of the scrap removing brush 34 (described later), and the cutting blade 29 has a shape as shown in FIG. It has a cutting blade shape for forming the label piece 12A and leaves a scraping portion 32 around the label piece 12A.
[0039]
The silk sponge 27 is elastically deformed so that the cutting blade 29 of the die-cut roll body 26 can press the pressure-sensitive adhesive layer 5 and the label material 3, and after the press-cut, the pressure-sensitive adhesive layer 5 and the die-cut roll 25. The force that separates and acts.
[0040]
The peelable material layer 28 prevents the die-cut roll 25 from adhering to the pressure-sensitive adhesive layer 5 when the label material 3 is pressed and transferred by the die-cut roll 25. The release agent layer 4 can be formed in the same manner as the mount 2.
[0041]
The label re-temporary attaching means 17 is for re-attaching the label piece 12A and the scrap removing portion 32 formed in the label cutting means 16 and the backing 2 that has been detoured through the backing guide means 15, The label material 3 and the backing paper 2 thus formed have a re-attachment roller 33 that turns largely. The re-tacking roller 33 rotates in contact with the vacuum base roll 24, and receives the label piece 12 </ b> A and the waste collecting portion 32 transferred by the vacuum base roll 24 as they are and joins the mount 2.
[0042]
Accordingly, in the middle of the transfer from the contact point P1 between the cutting blade 29 and the vacuum base roll 24 to the contact point P2 between the vacuum base roll 24 and the re-tempering roller 33 in the label transfer path 23, the label piece 12A and the scrap removal The part 32 is transferred in an integrated state in the same plane, and can be reliably transferred even in a state separated from the mount 2.
[0043]
The scrap removing means 18 separates the label piece 12A and the scrap removing portion 32 and temporarily attaches only the label piece 12A to the mount 2 to form the final pressure-sensitive adhesive label 10. And a scrap removing guide roller 35 and a scrap collecting portion winding shaft 36.
[0044]
The scrap removing brush 34 is made of a synthetic resin material such as nylon having elasticity or flexibility, and presses only the label piece 12A against the mount 2 by pressing it against the surface of the label material 3 with a predetermined pressing force. The waste portion 32 is wound around a waste portion take-up shaft 36 via a waste removal guide roller 35.
[0045]
As shown in FIG. 3, the scrap removing brush 34 is provided across the width of the base sheet 2 or the width of the label material 3, so that it can cope with the label pieces 12 </ b> A having various widths. The scraping brush 34 may have a width corresponding to that of each label piece 12A.
[0046]
In the pressure sensitive adhesive label manufacturing apparatus 11 having such a configuration, the label raw material 12 supplied from the supply means 13 is separated into the mount 2 and the label material 3 by the label mount separating means 14 (label mount separating step). The mount 2 bypasses the mount guide means 15, and the label material 3 is die cut and cut into the label pieces 12A and the residue removing portion 32 by the label cutting means 16 while being transferred through the label transfer path 23 (label cutting step). ).
[0047]
Even during the transfer on the label transfer path 23, the label material 3 is cut while being transported while being sucked to the outer peripheral surface thereof by the vacuum base roll 24. There is no possibility that the transfer will be impossible.
[0048]
The backing paper 2 and the label material 3 are merged in the label re-temporary attaching means 17, and the label pieces 12 </ b> A and the scrap removing portion 32 are temporarily attached to the backing paper 2 (label re-temporary attaching step). Only 32 is guided by the scrap removal guide roller 35 (scrap removal step), and the plurality of label pieces 12A remain on the mount 2 to manufacture the pressure-sensitive adhesive label 10.
[0049]
FIG. 4 is a cross-sectional view of the label piece 12A of the pressure-sensitive adhesive label 10 manufactured as described above. In the label cutting means 16, the cutting blade 29 of the die-cut roll 25 is directed in the direction of the label material 3 from the pressure-sensitive adhesive layer 5 side. Since the pressure-sensitive adhesive layer 5 is warped toward the end, the end of the pressure-sensitive adhesive layer 5 warps to the label material 3 side, and the leading end portion 12B of the label piece 12A is excellently peeled from the mount 2.
[0050]
That is, FIG. 5 is a cross-sectional view showing the peeling operation of the label piece 12A, similar to FIG. 9, and the label piece 12A is surely secured by its rigidity even if the mount 2 is turned on the turning pin 8 for peeling. It can be peeled off.
[0051]
It is also possible to cut and form the label piece 37 as shown in FIG. That is, when the label material 3 is cut, the vacuum strip 32 as described above is not formed, and the label piece 37 is formed by cutting along the cutting line 38 orthogonal to the transfer direction. Since the label pieces 37 can be integrated and transferred in the same plane while being sucked by the base roller 24, the label pieces 37 can be normally transferred even when separated from the mount 2. It is also possible to form the perforations 39 instead of the cutting lines 38 and to form the label pieces 37 by tearing the perforations 39 with a scraping brush 34 or the like.
[0052]
FIG. 7 is a schematic explanatory view of a pressure sensitive adhesive label manufacturing apparatus 40 according to the second embodiment of the present invention. This manufacturing apparatus 40 applies the present invention to a so-called flat label manufacturing method. It is applied. That is, in the manufacturing apparatus 40 of the pressure-sensitive adhesive label 10, the label cutting means 16 includes a flat vacuum base 41 (vacuum means) and a flat die cut 42 that reciprocates toward the vacuum base 41. Is provided.
[0053]
Other configurations are substantially the same as those of the manufacturing apparatus 11 of FIG. 1, but a vacuum hole 41A similar to the vacuum hole 24A is formed in the vacuum base 41, and the label material 3 is placed on the surface side (pressure-sensitive adhesive layer). Suction is possible from the side opposite to 5). However, after cutting by the die cut 42, it is necessary to stop the vacuum suction from the vacuum hole 41A and transfer the label material 3.
[0054]
Further, if necessary, the pressing roller 43 can be provided in contact with the re-tacking roller 33 to assist re-tacking between the label piece 37 and the mount 2.
[0055]
In the manufacturing apparatus 40 for the pressure-sensitive adhesive label 10 having such a configuration, the pressure-sensitive adhesive label 10 having excellent peelability can be manufactured as in the manufacturing apparatus 11 of FIG.
[0056]
【The invention's effect】
As described above, according to the present invention, the label material is sucked from the surface side and cut from the pressure-sensitive adhesive layer side. A pressure-sensitive adhesive label having excellent properties can be produced with good productivity.
[Brief description of the drawings]
FIG. 1 is a schematic explanatory diagram of a manufacturing apparatus 11 for a pressure-sensitive adhesive label 10 according to a first embodiment of the present invention.
FIG. 2 is a perspective view of the vacuum base roll 24. FIG.
3 is a plan view showing a cut shape of a label piece 12A formed on the label material 3 and a planar portion of a scrap removing brush 34. FIG.
4 is a cross-sectional view of a label piece 12A of the pressure-sensitive adhesive label 10 manufactured in the same manner. FIG.
FIG. 5 is a cross-sectional view showing the peeling operation of the label piece 12A.
6 is a plan view showing the shape of another label piece 37. FIG.
FIG. 7 is a schematic explanatory view of an apparatus 40 for manufacturing a pressure-sensitive adhesive label 10 according to a second embodiment of the present invention.
8 is a cross-sectional view of a conventional pressure-sensitive adhesive label 1. FIG.
FIG. 9 is a cross-sectional view showing the peeling operation of the label piece 3A.
[Explanation of symbols]
1 Pressure-sensitive adhesive label (Figure 8)
2 Separation mount 3 Label material 3A Label piece with label material 3 (single-leaf label)
3B Tip 4 of label piece 3A Release agent layer 5 Pressure sensitive adhesive layer 6 Cutting blade 7 Cutting groove (scratch or cut)
8 Deflection pin 10 Pressure-sensitive adhesive label (first embodiment, FIG. 1, FIG. 4, FIG. 5)
11 Manufacturing apparatus for pressure-sensitive adhesive label 10 (first embodiment, FIG. 1)
12 Label raw material 12A Label piece 12B by label raw material 12 Tip portion 13 of label piece 12A 13 Label raw material 12 supply means 14 Label mount separating means 15 Mount guide means 16 Label cutting means 17 Label re-tacking means 18 Waste removal means 19 Pressure sensitivity Winding means 20 of the adhesive label 10 Separation roller 21 First guide roller 22 Second guide roller 23 Label transfer path 24 Vacuum base roll (vacuum means)
24A Vacuum base roll 24 Vacuum hole 25 Die cut roll 26 Die cut roll body 27 Silk sponge 28 Peelable material layer 29 Cut blade 30 for cutting label material Cutting opening 32 Waste removal part 33 Temporary attachment roller 34 Waste removal brush 35 Waste removal guide roller 36 Waste removal part take-up shaft 37 Label piece (FIG. 6)
38 Cutting line orthogonal to the direction of transport of the label material 3 (FIG. 6R> 6)
39 Perforation 40 Manufacturing apparatus for pressure-sensitive adhesive label 10 (second embodiment, FIG. 7)
41 Flat vacuum base (vacuum means)
41A Vacuum hole 42 of vacuum base 41 Flat die-cut 43 Pressing roller P1 Contact point between cutting blade 29 and vacuum base roll 24 P2 Contact point between vacuum base roll 24 and re-attachment roller 33

Claims (4)

An apparatus for producing a pressure-sensitive adhesive label in which a label material having a pressure-sensitive adhesive layer is temporarily attached to a mount having a release agent layer,
Label mount separating means for separating the label material from the mount once;
Vacuum means for sucking the label material ;
By this vacuum means to suck the surface of the label material, and a label cutting means for forming several labels piece double cut from the pressure-sensitive adhesive layer side at a predetermined pitch,
Label re-attachment means for re-attaching these label pieces to the mount,
The apparatus for producing a pressure-sensitive adhesive label , wherein the label cutting means includes a die cutting roller having a cutting blade provided at a predetermined pitch and a peelable material layer . The die-cut roller is provided with an elastically deformable sponge and the peelable material layer as an outermost layer, and a cutting opening is formed at a predetermined pitch, and the cutting blade is provided in the cutting opening. The apparatus for producing a pressure-sensitive adhesive label according to claim 1 . The sponge is characterized in that the cut blade elastically deforms when the label material pushes the pressure-sensitive adhesive layer, and the pressure-sensitive adhesive layer is separated from the cut blade after the push-cut. 2. An apparatus for producing a pressure-sensitive adhesive label according to 2. Said vacuum means, apparatus for producing a pressure-sensitive adhesive label according to claim 1, wherein the Oh Rukoto in cylindrical vacuum base roll.

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