JPS6161193A - Label paper - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is a laminate of a label material that is die-cut to become a label and a label support material that supports the label material. The present invention relates to a label base paper suitable for cutting only the label material with a laser beam and punching and forming a label of an appropriate shape.

(Prior art) Conventionally, only label materials temporarily attached by bonding the adhesive layer formed on the back side to a label support material (commonly known as separator paper) whose surface is coated with silicone resin are used. As a method for forming labels that are canted into a shape and temporarily attached continuously on a label support material at predetermined intervals, a die roll 101 is used as shown in FIG. There are two types: the so-called roller type, in which the label base paper is sandwiched between the provided roller 103, and the die roll blade 102 cuts only the label material into a predetermined shape corresponding to the blade shape, and the so-called spiral blade type. There is a ``so-called press type'' that is punched into a predetermined shape by pressing with a blade die.

(Problems to be Solved by the Invention) However, both the "so-called roller type" and "so-called press type" tend to have poor cutting ability against the grain of the paper, resulting in uneven cuts in the label material. In addition, the distance and pressure between the die roll and roller often cause the label support material to break, so-called separation breakage, which hinders production.

In addition, with either method, because the blade is used for cutting, paper dust is generated or the adhesive on the back of the label material adheres to the blade, reducing the sharpness of the die roll or spiral blade. This was also a factor that inhibited production.

Furthermore, the shape of the blade must be changed depending on the shape of the label, making it unsuitable for producing a wide variety of products.

The present invention was made as a result of research to introduce a laser cutting method, which is a more superior cutting method, in place of the cutting method using the die roll blade and the spiral blade type, and should be canted by a laser beam. To provide a label base paper in which only the label material can be completely cut into a predetermined shape by the laser beam in an extremely efficient manner by laminating the label material and the label support material that is not cut by the laser beam of the same energy. be.

(Means for Solving the Problems) The present invention is a label base paper characterized in that a label material that is cut by a laser beam and a label support material that is not cut by a laser beam of the same energy are laminated.

(Function) Since the label material that is cut by the laser beam and the label support material that is not cut by the laser beam of the same energy are laminated, the label support material is cut by the laser beam of the same energy generated by the laser generator. Only the label material is cut into a predetermined shape, leaving behind.

(Effects of the Invention) According to the present invention, by adjusting the energy of the laser beam generated from the laser generator, the label support material (separation paper) does not cause so-called separation cuts, and only the label material can be cut. It can be evenly cut into a predetermined shape.

In addition, since it is now possible to cut with a laser beam, it is now possible to produce wide labels, whereas the conventional die roll or spiral blade type labels were limited to relatively small sizes. In addition, there is no longer any possibility that glue residue or the like will adhere to the die roll or the spiral-shaped blade and impede production by reducing its sharpness.

The above objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

(Example) FIG. 1 is a sectional view showing an embodiment of the present invention.

The label material 1 of this example is made by adding pigment coating to a sheet of paper, polystyrene, polyvinyl chloride, etc.
14. Add a process to make the surface porous to make it suitable for printing. It is made of a belt-shaped sheet material made of sheet synthetic paper, polyvinyl chloride sheet, or a laminated sheet of paper and aluminum foil. An adhesive layer 2 formed by coating or printing a pressure-sensitive adhesive is laminated on the back side of the label material 1, and a label support material 3 is laminated on the surface of the adhesive layer 2.

The label supporting material 3 is made of a polyolefin film such as polyethylene or polypropylene, and has a releasable surface, and is manufactured, for example, by the following manufacturing method.

FIG. 2 is a schematic front view of a manufacturing apparatus showing an example of manufacturing the label support material 3. The manufacturing method will be described below based on this manufacturing apparatus.

Put polyethylene, the main raw material, into a bosoba 4a, and put pellets of silicone resin, which is a release agent, into a hopper 4b. Mix pellets of polyethylene resin (97 parts by weight) and silicone resin (3 parts by weight) in the hopper 4a, and then use an extruder. After melt-kneading in step 5, it is first shaped into a smooth thin film in T-die 6, cooled on roll 7, and wound up on a predetermined roll 8.

The label supporting material 3 wound around the roll 8 is loaded into a label base paper manufacturing apparatus shown in FIG. 3 in order to laminate the label material 1 thereon.

This label base paper manufacturing apparatus 20 includes a belt-shaped label support material 3
It includes a device (not shown) for loading a holding roll 8 that holds the material in a roll shape. The label support material 3 held by the holding roll 8 is unwound at one end and transferred to the printing coating device 11.
guided by.

The printing and coating device 11 is for printing and coating an adhesive 2a such as a pressure-sensitive adhesive on the surface of the label support material 3, and includes two rollers 11a and 11b. The lower part of the roller Ila is immersed in the adhesive 2a stored in the pan llc. Therefore, Laura lla
By rotating and llb, the adhesive 2a is printed and applied onto the surface of the label support material 3 guided between them.

The label support material 3 coated with the adhesive 2a is then led to a dryer 13 including, for example, a heater. In the dryer 13, the adhesive 2a printed and coated on the label support material 3
is dried to form the adhesive layer 2. The label support it 3 on which the adhesive layer 2 has been formed in this way is led to the laminating device 15.

On the other hand, the MI-shaped label material 1 is held in a roll shape by another holding roll 17. Then, one end of the label material 1 is unwound and guided to the laminating device 15.

The laminating device 15 includes two rollers i5a and 15b.
Between these rollers 15a and 15h', a laminate of the label support material 3 and the adhesive layer 2 and the label) 11 are guided so that the label material 1 is laminated on the adhesive layer 2. And these rollers 15a and 15
By rotating b, the laminate such as the label support material 3 and the adhesive layer 2 and the label material 1 are laminated to form the label base paper 10.

The formed label base paper 10 is transferred to the label base paper holding roller 1
9, it is wound up into a roll and held.

Thus, a label base paper 10 is completed in which the label material 1 that is cut by the laser beam and the label support material 3 that is not cut by the laser beam of the same energy are laminated.

Next, a method for manufacturing labels using the label base paper according to the present invention will be explained based on a label manufacturing apparatus including a laser generator and a marking device.

FIG. 4 is a schematic perspective view showing an example of an apparatus for manufacturing labels using the label base paper formed as described above.

This label manufacturing device 30 includes a label base paper holding roller 19
(not shown). The loaded holding roller 19 holds, for example, a stack of label base papers 10 made in the manner described above in the form of a roll. Then, one end of the stack of label base papers 10 is unwound and guided to the printing device 32.

The printing device 32 includes one printing machine such as an offset printing machine, and prints necessary drawing lines such as one character and one figure on the surface of the label + A1 of the label base paper 1o that is continuously supplied, and the printing lines are spaced apart from each other. Label portions 34 are sequentially formed across the label portions 34 .

The label base paper 10 including the label material 1 on which each label portion 34 is formed is transferred to a laser beam cutting device 40.
will be sent to.

The laser beam cutting device 40 typically uses a carbon dioxide laser generator, but other laser generators such as an argon laser can also be used.

Therefore, the laser beam cutting device 40 will be explained below by taking a carbon dioxide laser generator as an example.

As shown in FIG. 5, which is a schematic diagram of the device, the laser beam cutting device 40 includes a laser generator 42, a conduit 44 that guides the laser beam generated by the laser generator 42, and a laser beam guided by the conduit 44. It includes a processing ethos 46 that guides a beam onto the label material 1, and a control device 48 that controls a laser generator 42, a processing head 46, and the like.

The laser generator 42 includes a cylinder 42a filled with gas such as CO2, and a gas circulation device 4 that introduces the gas filled in the cylinder 42a into a laser resonator main body 4.2d.
2b and a high voltage power supply 42c that applies a high voltage to the electrodes within the laser resonator body 42d.

The laser beam 43 extracted by this laser generator 42 is reflected by the first reflection 1Ji44a of the external optical system,
It is guided to the label material 1 located at the tip of the processing head 46 through the second reflection 144b, the third reflection mirror 4.4C and the lens 4.4d.

Then, the laser generator 42 and the processing head 46 are operated in response to a signal from the control device 48, and the processing head 46 is moved back and forth and left and right to cut along the shape of the label portion 34. At this time, label material 1
is cut by the laser beam 43, but the label support material 3 is not cut by this laser beam 43 and is not cut.

Note that in this label manufacturing device 30, the printing device 3
A photosensor 50 is provided between the laser beam cutting device 2 and the laser beam cutting device 40 .

The photosensor 50 includes a light-emitting element and a light-receiving element. Light from the light-emitting element is irradiated onto the label material 1, and reflected light therefrom is sensed by the light-receiving element.

The signal from the photosensor 50 (light-receiving element) is, for example, at a high level when detecting the intact portion of the label material 1, and at a high level when detecting the label portion 34 printed by the printing device 32. , for example, falls to a low level. A control device 4 receiving such a signal
8 includes, for example, a differentiation circuit, which outputs one pulse when the photosensor 50 detects the edge of the label portion. In response to this pulse output, the controller 48
is the take-up roll 6 to stop the transport of the label base paper 10.
0 drive circuit. On the other hand, the trailing edge of the label portion 34 is detected and the Kao head 46 of the laser beam cutting device is driven synchronously based on the pulse signal described above. Note that in order to perform such control, the printing device 32 and the laser beam cutting device 40 need to be arranged at a predetermined interval in the transport direction of the label base paper 10. Further, the moving distance of the label base paper 10 may be detected by an encoder (not shown) that generates pulses corresponding to the rotation angle of the shaft of the take-up roll 60.

Note that since the label base paper 10 is flexible, it is undeniable that some unevenness will occur during transportation, so the laser beam 43 focused by the condensing lens 44d will be out of focus, and this will cause the cut. In order to prevent unevenness in the width, depth, etc. of the label, as shown in FIG. It is provided on the lower surface of the label support material 311111 of ring mio.

Then, a label base paper 10 in which the label material 1 is cut into a predetermined shape by a laser beam cutting device 40
is further fed as the take-up roll 60 rotates, and is sent to the waste removal device 54, where it passes through the waste removal roller 54.
The portion of the label other than the label 34a having the label portion 34 is taken up by the waste take-up roller 54b, and the label 34. a is wound up together with the label support material 3 onto the take-up roll 60 while being temporarily attached to the label support material 3.

FIG. 6 is an illustrative view of an apparatus for manufacturing deformed labels using label base paper according to the present invention.

This label manufacturing device 30' includes the label manufacturing device 30 described above.
Compared to the previous version, the printing device 32' is modified and includes a device for further laminating the adhesive door 0 on the label base paper 10.

The printing device 32' has a stamp stand 32'a arranged under the label base paper 10, and a stamp stand 32'a placed on both sides of the label base paper 10.
It is constructed as a lithographic printing machine including a correspondingly provided surrounding plate 32'b. The surrounding plate 32'b forms a label portion 34 by printing a predetermined pattern at regular intervals on the label base paper 10 that is transported intermittently or continuously.

The Canadian door 0 is made of a material that is equivalent to the label material 1 of the label base paper or is more easily canted by the laser beam, such as paper, cloth, cellophane, nonwoven fabric, etc., and a pressure-sensitive adhesive layer is formed on the back side. ,moreover,
A release sheet 72 is laminated, and the laminate of the Kanji door 0 and the release sheet 72 is a Kanji troll 74.
The release sheet 72 alone is changed in direction by the release roll 78 and peeled off from the press door 0 before reaching the pressure roll 76, and is wound onto the release sheet take-up roll 80. There is.

Therefore, the release sheet 72 is peeled off from the door 0.
is adhered to the surface of the label material 1 of the label base paper 10 with its pressure-sensitive adhesive layer surface at the pressure roll 76 portion. Note that, as will be described later, this adhesive door 0 needs to be adhered to the surface of the label material 1 of the label base paper 1o in such a way that it can be peeled off freely, so the surface of the label material 1 of the label base paper 10 is also attached with releasability. It is necessary to apply a release material such as silicone resin in advance to make it last.

Then, the laminate in which the Kanji door 0 is laminated on the surface of the label base paper 10 is processed by a laser beam cassotting device 40.
First, a laser beam of a predetermined output power is used to cut both the adhesive door 0 and the label material 1 along the outer edge of the label portion 34, and then the output of the laser beam is changed, as shown in FIG. At a predetermined inner portion that was previously cut along the outer edge of the label portion 34, only the needle 0 is cut l-L, and then a portion of the needle 0 that was cut later, that is, surrounded by the cut groove 70a 1. The tapered peeling portion 70b is cut so that it can be peeled off from the surface of the label material 1 of the label base paper 10.

Then, the part where only Kanji door 0 was cut is
For example, by printing characters such as hit or miss on the back side of the door 0, it can serve as a substitute.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of the present invention. FIG. 2 is a schematic front view showing an example of a manufacturing apparatus for manufacturing a label support material. FIG. 3 is a schematic diagram showing an example of a manufacturing apparatus for manufacturing label base paper. FIG. 4 is a schematic perspective view showing an example of an apparatus for manufacturing labels using a label base paper in which a label material and a label support material are laminated. FIG. 5 is a schematic diagram without showing the main parts of the label manufacturing apparatus shown in FIG. 4. FIG. 6 is an illustrative view of an apparatus for manufacturing deformed labels using label base paper according to the present invention. FIG. 7 is a sectional view showing a part of the label manufactured by the manufacturing apparatus shown in FIG. 6. FIG. 8 is a perspective view of a conventional example. In the figure, 1 is a label material, 2 is an adhesive layer, 3 is a label support material, 4a and 4b are hoppers, 5 is an extruder, 6 is a T-die, 7 is a roll, 8 is a roll, 10 is a label base paper ,
11 is a printing coating device, 13 is a dryer, 15 is a laminating device,
17 is a holding roller, 19 is a label base paper holding roller, 20
30 is a label manufacturing device, 30 is a label manufacturing device, 32 is a printing device, 34 is a label part, 40 is a laser heater, 7 is a marking device, 42 is a laser generator, 43 is a laser beam, 44 is a conduit, 46 is a processing device Head, 48 is a control device, 50 is a photosensor, 52 is a fixing device, 54
60 is a scrap removal device, 60 is a roll, 70 is a processed sheet, 7
2 is a release sheet, 74 is a roll, 76 is a pressure roll, 7
Reference numeral 8 indicates a peeling roll, and 80 indicates a release sheet winding roll. Patent applicant Osaka Sealing Printing Co., Ltd. Agent Patent attorney Oka 1) Zenkei (and 1 other person) N% Dingku U) School of law Pe

Claims (1)

[Claims] 1. A label material that can be cut by a laser beam and a label support material that cannot be cut by a laser beam having the same energy as the laser beam that can cut the label material are laminated. Label base paper. 2. The label base paper according to claim 1, wherein the label material has a pressure-sensitive adhesive layer formed on the surface to be bonded to the support material. 3. The label base paper according to claim 1 or 2, wherein the label material is made of paper. 4. The label base paper according to claim 1, 2, or 3, wherein the label support material is formed of a polyolefin film such as polyethylene or polypropylene.