JPH0543480B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention relates to the production of adhesive-backed labels that are attached to product packaging or used on the surfaces of various objects for advertising, information transmission, or decoration. It is about the method.

[Prior art] Currently, labels with adhesive are attached to a backing paper, and there are cases where the user who purchased the product in bulk peels it off from the backing paper when using it, and cases where the label separates into parts like a watz pen. In some cases, a release paper of the same size as the label is pasted on top of the adhesive layer of the label, and the user peels off the release paper from the label to use the adhesive-backed label.

In the latter case, conventionally, a printed paper sheet for the label is pasted onto a large backing paper whose surface has been treated with silicone, and the laminated label and backing paper are placed on a holder and a punching blade mold of a predetermined shape is used. It was manufactured by punching it out in one piece.

However, when using this method, the sharp cutting edge is punched out onto a hard base, so the punching edge or the surface of the pedestal gets damaged quickly and has the disadvantage that work often needs to be interrupted to replace them. .

Another drawback is that the metal noise that accompanies punching is very loud, creating a poor work environment and causing noise pollution.

That is, if a hard material such as metal is used for the punching pedestal, the sharpness of the punching blade will quickly deteriorate and noise will increase.

Furthermore, if a soft material such as wood is used for the pedestal, noise and durability of the cutting edge will be increased, but the surface of the pedestal will be damaged and accurate punching will not be possible.

[Problems to be Solved by the Invention] An object of the present invention is to provide a manufacturing method for individually cut-off labels with adhesive, which has good working efficiency and a quiet working environment. It is.

[Means for Solving the Problems] The present inventor proposed that if paper labels, which are currently being punched out using a heat-melting material, are cut by thermal cutting, the punching blade can be cut by cutting with a rounded cutting edge. The blade edge and pedestal are not damaged and no noise is generated, and since there is an adhesive between the label sheet and the release paper sheet, even if the sheet is fused, the two sheets will remain semi-fused at the fused portion. The present invention was completed by taking advantage of the fact that it can be easily removed by hand.

That is, the present invention provides a long thermoplastic resin film sheet in which a long thermoplastic resin film sheet is printed at the same speed so as to be polymerized while continuously feeding a long heat-soluble sheet having an adhesive-releasable surface. is continuously fed out, an adhesive is interposed between both sheets, and the sheets are pressed and bonded with a roll to form an adhesive laminate sheet, and the adhesive laminate sheet is intermittently moved on a punching table, While the adhesive laminated sheet is stationary, a high-temperature fusing punching blade descends onto the table onto the printed pattern, and fuses and cuts the laminated heat-fusible sheet and thermoplastic resin sheet integrally into a predetermined shape. The present invention provides a method for manufacturing a label characterized by punching it into a shape.

The heat-soluble sheet used in the present invention is a long sheet with a certain width, and any material can be used as long as it can be cut by a hot blade.For example, polypropylene film, polyethylene film, polyethylene film, etc. Single layers or laminated films of two or more of these can be used, such as vinyl chloride films, nylon films, polyester films, EVA films, ionomer films, and various types of synthetic papers.

The adhesive removability of the heat-soluble sheet used in the present invention means that when the heat-soluble sheet is bonded to another sheet via an adhesive, the adhesive state is temporarily maintained, but when the heat-soluble sheet is peeled off, the adhesive It has the property that it does not stick to the heat-insoluble sheet, but sticks to all the other sheets.

For example, the resin film sheet coated with a surface lubricant such as silicone can be suitably used.

The thermoplastic resin film sheet used as the label sheet in the present invention is a long sheet with a certain width, and any printable thermoplastic resin film can be used, such as polypropylene film, polyethylene film, etc. Single layers or laminated films of two or more of these can be used, such as films, polyvinyl chloride films, nylon films, polyester films, EVA films, ionomer films, and various types of synthetic papers.

Moreover, a foamed film sheet can also be used as the thermoplastic resin film sheet used in the present invention.

The thermoplastic resin film used in the present invention is printed for use as a label. This printing can be done on the front side of the label, or so-called back printing can be done on the back side of the transparent film.

In the manufacturing method of the present invention, the printing of the thermoplastic film sheet and the manufacturing method of the present invention can be carried out continuously, but normally, after printing, the thermoplastic film sheet is once rolled and stored, and when manufacturing the label of the present invention, Pull this out from the roll and use it.

In the label manufacturing method of the present invention, a heat-soluble release paper sheet and a thermoplastic resin sheet for a label are simultaneously fed out at the same speed, polymerized, and temporarily bonded with an adhesive.

When using this adhesive, the label is peeled off from the heat-soluble sheet and is not completely adhered.

The adhesive used in the manufacturing method of the present invention is, for example,
A pressure-sensitive adhesive or the like whose adhesion and peeling are reversible can be suitably used.

This temporary adhesion can be performed by applying an adhesive to the inside of one of the sheets, polymerizing the two sheets, and then pressing and bonding them together using a press roll or the like.

In the manufacturing method of the present invention, the laminated sheet laminated in this way is immediately and continuously as it is, or once rolled and then pulled out again and moved intermittently according to the width of the punching fusing blade to place it on the label fusing punching table. send to. This intermittent movement is controlled by detecting the printed pattern or phototube mark using a phototube, and when the label reaches a predetermined position, the fusing blade descends to the predetermined position and removes the heat-soluble sheet for release paper and thermoplastic resin. Cut the label sheet together.

This fusing can be performed from either the front or back side.

In the fusing process of the present invention, a punching blade with a part cut out as shown in FIG.
If a part of the periphery of the label part 4 is connected to the margin part 5 of the raw material as shown in the figure, the removed label part 4 will be transported with it attached to the sheet, so it will not be scattered or the hot punching This is convenient because it does not get into the cutting blade mold and melt.

The labeled sheet produced in this way is
After the manufacturing process is completed, the connecting portion 6 can be cut off manually or mechanically, and only the label can be separated and recovered for use.

In this way, in the fusing punching process, when the connecting part 6 is left, the thickness of the cutout part 7 of the hot blade is set to be less than or equal to the thickness of the backing sheet, or the thickness of the label sheet is set so that only the heat-fusible sheet 1 for the backing sheet remains. Depending on the extent to which the label sheet is melted to the middle, it can be adjusted so that the label sheet is melted from the top or only the label sheet is melted completely or halfway.

In this way, after the process is completed, the irregular cut surface at the connection part 6 that occurs when the label is torn off will appear only on the lower layer of the printed layer of the heat-soluble sheet for the mount or the thermoplastic resin sheet for the label, and will not actually be visible. The edges of the printed surface of the label used can be made completely smooth by fusing, which is desirable because the printed surface will not be disturbed.

Heating of the fusing blade is carried out by inserting a heater into the fusing blade mold.

In this way, a label sheet in which only the thermoplastic resin film sheet is fused and cut becomes an adhesive-attached label product using the heat-soluble sheet as a release paper.

When the release paper is peeled off from this label, a label with an adhesive on the back side is obtained, which can be used as a label by pasting it onto a package of a product or the like.

[Effects of the Invention] Since the label manufacturing method of the present invention is punched out by thermal cutting, the edges of the label are smoother and stronger than mechanical cutting using a simple blade, and furthermore, it is easier to punch out even the heat-melting backing paper. Nevertheless, in this case, since the adhesive interposed between them prevents fusion, the two film sheets that are thermally melted have a unique effect in that they are in a semi-molten state but are not fused. This semi-molten state is only at the periphery of the label, so
Once a part of the periphery is loosened by hand, the backing sheet can be easily peeled off from there.

This semi-molten state will firmly hold the backing sheet on the label until just before use unless it is massaged, so there is no inconvenience that the release paper may peel off before use.
This provides the advantage that there is no risk of reducing the adhesive strength of the label.

In addition, in the fusing process, a blade shape with a rounded edge is used for cutting, so the blade shape never stops cutting, and the pedestal is not damaged, which improves the efficiency of the manufacturing process and further improves the working environment. It has the great advantage of being quiet.

Further, in the manufacturing method of the present invention, since the pattern is detected by a phototube and fusing punching is performed, there is no misalignment between printing and fusing punching, and the fusing blade can be manufactured in a free shape in a plane.

[Brief explanation of the drawing]

FIG. 1 is a partial sectional view showing the structure of a laminated sheet used in the manufacturing method of the present invention, and FIG. Figure 3 is an enlarged view of the notched part of the fusing blade. The symbols in the figure are: 1; heat-soluble sheet; 2; thermoplastic resin film sheet; 3; adhesive layer; 4; label portion; 5; margin portion; 6; connecting portion; , 8; It is a fusing blade.

Claims (1)

[Claims] 1. While continuously feeding out a long heat-soluble sheet having an adhesive-releasable surface, a long printed thermoplastic resin film sheet is continuously fed out at the same speed so that the sheet is polymerized. Then, an adhesive is interposed between both sheets, and the sheets are pressed and bonded with a roll to form an adhesive laminate sheet, and then the adhesive laminate sheet is intermittently moved on a punching table to form the adhesive laminate sheet. While the machine is stationary, a high-temperature fusing punching blade descends onto the table above the printed pattern, and the laminated heat-fusible sheet and thermoplastic resin sheet are cut out integrally into a predetermined shape by fusing. A method for producing a label characterized by: