JPH0640239B2 - Label manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention has a laser generating device having a label base paper which is a laminate of a label material which is die-cut into a label and a label support material which supports the label material. TECHNICAL FIELD The present invention relates to a label manufacturing method in which only a label material is cut by a laser beam generated from a label, and a label having an appropriate shape is die-cut and molded.

(Prior Art) Conventionally, only a label agent temporarily adhered by bonding a pressure-sensitive adhesive layer surface formed on the back surface to a label support material (commonly called “sepa paper”) whose surface is coated with a silicone resin is appropriately used. As a method of forming a label which is cut into a shape and continuously tentatively attached at a predetermined interval on the label support material, a die roll 101 is used to face the die roll 101 as shown in FIG. It is called a "so-called roller type" in which the label base paper is sandwiched between the roller 103 and the blade 102 of the die roll, and only the label material is pulled out into a predetermined shape corresponding to the blade type. There is "a so-called press type" in which a blade die is pressed and punched into a predetermined shape.

(Problems to be Solved by the Invention) In Japanese Patent Laid-Open No. 59-147382, instead of such a cutting method using a die roll blade and a mainspring blade die,
A method for producing tack paper using a better laser cutting method is disclosed. Briefly, the tack paper produced by this production method is obtained by cutting a label base material temporarily attached to a label support material with a release agent layer and a pressure-sensitive adhesive layer into a predetermined shape by a laser beam.

However, this tack paper manufacturing method requires a step of forming a release agent layer separately from the label support material, and therefore, extra labor is required to manufacture the label.

Therefore, an object of the present invention is to provide a label manufacturing method capable of manufacturing a label extremely efficiently.

(Means for Solving Problems) The present invention relates to a label material cut by a laser beam,
A step of laminating a label support material, which is formed by mixing a material that cannot be cut with a laser beam that cuts the label material and a material that has a peeling property, and is not cut by a laser beam having the same energy as the laser beam (a) A step (b) of cutting only the label material into a predetermined label shape by a laser beam among the laminate of the label support material and the label material, and an unnecessary portion of the label material cut into an appropriate shape in the previous step. And a step (c) of peeling and removing from the label support material.

(Function) Since the label material that is cut by the laser beam energy and the label support material that is not cut by the same laser beam energy are laminated, only the label material is produced by the laser beam of the same energy generated by the laser generator. Are cut into a predetermined shape to form a label.
The label support material has peelability because it is formed by mixing a material that is not cut with a laser beam that cuts the label material and a material that has peelability.

(Effect 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, and only the label material is cut. It can be evenly cut into a predetermined shape.

Also, since it is possible to cut with a laser beam, the size of the label was limited to a relatively small size by the conventional die roll or mainspring blade type, but it is also possible to manufacture a wide label. In addition, the adhesive residue and the like will not adhere to the die roll or the blade of the mainspring blade to reduce the sharpness, thereby hindering the production. Moreover, since the label support material has releasability, the step of forming the release agent layer is unnecessary, and the label can be manufactured very efficiently.

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

(Embodiment) FIG. 1 is a sectional view showing an example of a label base paper used in the manufacturing method according to the present invention.

The label material 1 is, for example, a synthetic paper, a vinyl chloride sheet, or a paper and an aluminum foil, which are provided with printability by applying a pigment coating to a sheet of paper, polystyrene, polyvinyl chloride, or the like, or by processing to make the surface porous. It is made of a band-shaped sheet material made of laminated sheets. An adhesive layer 2 formed by coating or printing a pressure-sensitive adhesive is laminated on the back surface of the label material 1, and the label support material 3 is laminated on the surface of the adhesive layer 2.

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

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

The main raw material polyethylene is put in the hopper 4a, the silicone resin pellets as the release agent are put in the hopper 4b, the polyethylene resin (97 parts by weight) and the silicone resin (3 parts by weight) are mixed in the hopper 4a, and the extruder is used. After being melt-kneaded in 5, it is first shaped into a smooth thin film by a T die 6, cooled on a roll 7, and wound on a predetermined roll 8.

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

The label base paper manufacturing apparatus 20 includes a strip-shaped label support material 3
The apparatus includes a device (not shown) for loading the holding roll 8 that holds the sheet in a roll shape. The label supporting material 3 held by the holding roll 8 has one end thereof unwound, and the print coating device 11
Be led to.

The printing applicator 11 is for printing and applying an adhesive 2a such as a pressure-sensitive adhesive on the surface of the label support 3, and includes two rollers 11a and 11b. The lower part of the roller 11a is immersed in the adhesive 2a stored in the pan 11c. Therefore, the roller 11a
By rotating 11 and 11b, the adhesive 2a is applied by printing onto the surface of the label support 3 guided between them.

Then, the label support material 3 on which the adhesive 2a is applied by printing.
Is guided to a dryer 13 including, for example, a heater. In the dryer 13, the adhesive 2 printed on the label support 3 is applied.
a is dried and is formed as the adhesive layer 2. The label supporting material 3 with the adhesive layer 2 thus formed is guided to the laminating apparatus 15.

On the other hand, the strip-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 is guided to the laminating apparatus 15.

The laminating apparatus 15 includes two rollers 15a and 15b, and between the rollers 15a and 15b, the label supporting material 3 is laminated so that the label material 1 is laminated on the adhesive layer 2.
And the laminate of the adhesive layer 2 and the label material 1 are guided.
Then, by rotating these rollers 15a and 15b, a 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 a label base paper holding roller 1
It is wound into a roll shape by 9 and held.

Next, a method of manufacturing a label according to the present invention using the label base paper 10 will be described based on a label manufacturing apparatus including a laser beam cutting apparatus.

FIG. 4 is a schematic perspective view showing an example of an apparatus for producing a label using such a label base paper.

This label manufacturing apparatus 30 includes a label base paper holding roller 19
(Not shown). The loaded holding roller 19 holds, for example, a laminated body of the label raw paper 10 produced as described above in a roll shape. Then, one end of the laminated body of the label base paper 10 is unwound and is guided to the printing device 32.

By a printing device 32 including a printing machine such as an offset printing machine, necessary drawing lines such as characters and figures are printed on the surface of the label material 1 of the label base paper 10 which is continuously supplied, and each is spaced from each other. To sequentially form the label portions 34 ...

Next, the label base paper 10 including the label material 1 on which each label portion 34 is formed is fed to the laser beam cutting device 40.

As the laser beam cutting device 40, a carbon dioxide gas laser generator is typically used, but other laser generators such as an argon laser can also be used.

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

The laser beam cutting device 40 includes a laser generator 42, a conduit 44 for guiding the laser beam generated by the laser generator 42, and a laser guided by the conduit 44, as shown in FIG. A processing head 46 that guides the beam onto the label material 1 and a control device 48 that controls the laser generator 42, the processing head 46, and the like are included.

The laser generator 42 includes a cylinder 42a for filling a gas such as CO ₂ and a gas circulating device 42b for introducing the gas filled in the cylinder 42a into the laser resonator body 42d.
And a high voltage power supply 42c for applying a high voltage to the electrodes inside the laser resonator body 42d.

The laser beam 43 extracted by the laser generator 42 is supplied to the first reflecting mirror 44a and the second reflecting mirror 44a of the external optical system.
It is guided to the label material 1 located at the tip of the processing head 46 via the reflecting mirror 44b, the third reflecting mirror 44c and the lens 44d.

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

In the label manufacturing apparatus 30, the printing apparatus 3
A photo sensor 50 is provided between the laser beam cutting device 40 and the laser beam cutting device 40.

The photo sensor 50 includes a light emitting element and a light receiving element, light from the light emitting element is applied to the label material 1, and reflected light from the label material 1 is sensed by the light receiving element.

The signal from the photo sensor 50 (light receiving element) is at a high level, for example, when the label material 1 is detected as it is, and when the label portion 34 printed by the printing device 32 is detected. , For example, fall to low level. Control device 48 receiving such a signal
Includes, for example, a differentiating circuit, which outputs one pulse when the photosensor 50 detects the edge of the label portion. In response to this pulse output, the control device 48 acts on the drive circuit of the take-up roll 60 to stop the transfer of the label base paper 10. On the other hand, the trailing edge of the label portion 34 is detected, and the processing head 46 of the laser beam cutting device is driven synchronously based on the above-mentioned pulse signal.
In order to carry out such control, the printing device 32 and the laser beam cutting device 40 are installed in the label base paper 1
It would have to be spaced a predetermined distance in the 0 transport direction. The moving distance of the label base paper 10 may be detected by an encoder (not shown) that generates a pulse corresponding to the rotation angle of the shaft of the winding roll 60.

Since the label base paper 10 is flexible, some unevenness is unavoidable during the transfer, so the laser beam 43 converged by the condenser lens 44d causes defocusing, which causes the width of the cut. In order to prevent the occurrence of unevenness in the depth of the label base paper 10, as shown in FIG. 5, a fixing device 52 that sucks the label base paper 10 by vacuum suction and positions it uniformly at a predetermined height is provided. It is provided on the lower side of the material 3.

Then, the label base paper 1 obtained by stamping the label material 1 into a predetermined shape by the laser beam cutting device 40.
0 is further fed with the rotation of the take-up roll 60, is placed in the dust removing device 54, and is fed to the dust removing roller 5
The portion other than the label 34a having the label portion 34 according to 4a is wound around the scrap winding roller 54b, and the label 34a is wound around the winding roll 60 together with the label supporting material 3 while being temporarily attached to the label supporting material 3. Taken.

Next, a method of manufacturing a further deformed label using the label base paper will be described based on the schematic view of the label manufacturing apparatus shown in FIG. This label manufacturing device 3
Reference numeral 0'includes a device for further laminating the processed sheet 70 on the label base paper 10, and is configured so that another type of processed sheet 70 is further laminated on the surface of the label base paper 10 so as to give a different type of role. There is.

The printing device 32 'includes a stamp board 32'a arranged below the label base paper 10 and a stamp stand 32'a above the label base paper 10.
And a stamp plate 32'b provided correspondingly to the flat plate printer. The stamp plate 32'b forms a label portion 34 by printing a predetermined pattern at regular intervals on the label base paper 10 which is intermittently or continuously transferred. The processed sheet 70 is made of a material equivalent to the label material 1 of the label base paper or more easily cut by a laser beam, for example, paper, cloth, cellophane, non-woven fabric, etc., and a pressure sensitive adhesive layer is formed on the back surface thereof. ,further,
The release sheet 72 is laminated and the processed sheet 7
0 and the release sheet 72 are processed sheet rolls 74
It is configured such that only the release sheet 72 is changed in direction by the release roll 78 before being peeled from the processing sheet 70 before being wound up on the release sheet take-up roll 80 before reaching the pressure-bonding roll 76. There is.

Then, the processed sheet 70 from which the release sheet 72 is released
Is adhered to the surface of the label material 1 of the label base paper 10 with the surface of the pressure sensitive adhesive layer at the position of the pressure roll 76. The processed sheet 70 is, as described later,
Since it is necessary to bond the label base paper 10 so that it can be peeled off from the surface of the label material 1 of the label base paper 10, a release material such as a silicone resin is applied in advance so that the surface of the label material 1 of the label base paper 10 also has releasability. Need to be kept.

Then, the laminated product in which the processed sheet 70 is laminated on the surface of the label base paper 10 is the laser beam cutting device 40.
First, the processing sheet 70 and the label material 1 are cut together along the outer edge of the label portion 34 by a laser beam having a predetermined output, and then the output of the laser beam is changed, as shown in FIG. , The processed sheet 70 is cut only at the inner predetermined portion previously cut along the outer edge of the label portion 34, and the processed sheet 7 is cut later.
A part of 0 is cut so that it can be separated from the surface of the label material 1 of the label base paper 10.

By the way, the part where only the processed sheet 70 is cut is
For example, by printing a character such as a hit or a detachment on the back surface of the processed sheet 70, it becomes possible to play the role of a lottery.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an example of a label base paper used in the manufacturing method according to the present invention. FIG. 2 is a schematic front view of a manufacturing apparatus showing an example of a method for manufacturing a label support material. FIG. 3 is a schematic view showing an example of a manufacturing apparatus for manufacturing label raw paper. FIG. 4 is a schematic perspective view showing an example of an apparatus showing a method for producing a label by using a label base paper in which a label material and a label support material are laminated. FIG. 5 is a schematic view showing a main part of the label manufacturing apparatus shown in FIG. FIG. 6 is an illustrative view of a label manufacturing apparatus for explaining a method for manufacturing a further deformed label with a label base paper. FIG. 7 is a sectional view showing a part of the label manufactured by the manufacturing apparatus shown in FIG. 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, and 6 is T.
Die, 7 is roll, 8 is roll, 10 is label base paper, 1
1 is a printing coating device, 13 is a dryer, 15 is a laminating device, 1
Reference numeral 7 is a holding roller, 19 is a label base paper holding roller, 20 is a label base paper manufacturing apparatus, 30 is a label manufacturing apparatus, 32 is a printing apparatus, 34 is a label portion, 40 is a laser beam cutting apparatus, 42 is a laser generation apparatus, and 43 is A laser beam, 44 is a conduit, 46 is a processing head, 48 is a control device, 50 is a photo sensor, 52 is a fixing device, 54 is a scraper, 60 is a roll, 70 is a processed sheet, 72 is a release sheet, and 74 is a roll. , 76 is a pressure roll, 78 is a release roll, and 80 is a release sheet winding roll.

Claims (4)

[Claims] 1. A label material cut by a laser beam,
A step of laminating a label support material, which is formed by mixing a material that cannot be cut with a laser beam that cuts the label material and a material that has a peeling property, and is not cut by a laser beam having the same energy as the laser beam (a ), A step (b) of cutting only the label material into a predetermined label shape with a laser beam in the laminate of the label support material and the label material, and an unnecessary portion of the label material cut into an appropriate shape by the previous step. (C) peeling and removing from the label support material. 2. The label manufacturing method according to claim 1, wherein a polyolefin film such as polyethylene or polypropylene is selected as the label support material, and paper is selected as the label material. 3. The method according to claim 1, wherein the step (a) of laminating the label material and the label support material includes the step of winding a laminate in which the label support material and the label material are laminated in a roll shape. Alternatively, the method for producing a label according to item 2. 4. The step (c) of removing the unnecessary portion of the label material cut by the laser beam is carried out in a state where the label material after the unnecessary portion is removed is temporarily attached onto the label support material. The method for producing a label according to claim 1, 2, or 3, further comprising the step of winding the label into a roll.