JPH01127300A - Manufacture of label - Google Patents

Abstract

PURPOSE: To provide a label with a mount having the smooth and strong edge by fusion-cutting and punching a heat fusible sheet and a thermoplastic resin film sheet laminated as they are by a high temperature fusion punching blade. CONSTITUTION: While continuously sending out a heat fusible sheet 1 having a long size adhesive separation resistant surface, a printed long size thermoplastic resin film sheet 2 is continuously sent out at the same speed as the fusible sheet so as to be superposed on this fusible sheet, and an adhesive 3 is interposed between both sheets, and this is press-contact adhered by a roller. Next, this adhesive laminated sheet is intermittently moved on a punching stand, and when a printing pattern is detected by a phototube, a high temperature fusion punching blade is lowered on the punching stand, and this adhesive laminated sheet is punching by fusion-cut. In this case, since the adhesive 3 is interposed between the sheet 2 for a label and the sheet 1 for a mount, even if they are fusion-cut, these both sheets are only semi-fused in a fusion-cut part, and the sheet 1 for a layout sheet can be easily torn off by hand.

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, adhesive-backed labels have labels pasted on a backing paper, and in some cases the user who purchased the product in bulk peels it off from the backing paper when using it, and in other cases the labels are separated individually like patches. 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, the laminated label and backing paper are placed on a receiver, and a punching blade of a predetermined shape is used. It was manufactured by punching it out in one piece using a mold.

However, when using this method, the sharp cutting edge is driven into a hard platform, so the punching edge or receiver quickly damages the surface of the platform, which often requires interruption of work to replace them.

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

That is, if a hard material such as metal is used for the base of the punching holder, 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 base of the receiver, noise and durability of the cutting edge will be increased, but the surface of the base of the receiver will be damaged, making accurate punching impossible.

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

[Means for Solving the Problems] The inventor of the present invention discovered that if paper labels are currently punched out using heat-melting material, the punching blade can be cut with a rounded cutting edge. The blade edge and receiver do not damage the base or generate noise, and since there is an adhesive between the label sheet and the release paper sheet, even if it is fused, both sheets will remain semi-fused at the fused part. Focusing on the fact that it can be easily peeled off by hand, the present invention was completed by taking advantage of this fact.

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 sent out, an adhesive is interposed between both sheets, and the sheets are pressed and bonded with a roll.The adhesive laminated sheet is then moved intermittently on a punching table, and a printed pattern or sheet is formed using a phototube. The phototube mark on the top is detected, and in response to this signal, a high-temperature fusing punching blade descends onto the table and cuts the laminated heat-fusible sheet and thermoplastic resin sheet together into a predetermined shape by fusing. The present invention provides a method for manufacturing a label characterized by the following.

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 fused by thermal force. 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 film, nylon film, polyester film, EvA film, ionomer film, and eight different types of synthetic paper.

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 production method of the present invention, the printing of the thermoplastic film sheet and the production method of the present invention can be carried out continuously, but usually, after printing, the thermoplastic film sheet is rolled up and stored. , 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-insoluble sheet and is not completely adhered.

As the adhesive used in the manufacturing method of the present invention, for example, a pressure-sensitive adhesive 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 bonding them together by pressing with a press roll or the like.

In the manufacturing method of the present invention, the laminated sheet laminated in this way is immediately pulled out continuously or after being rolled, and the label is cut by fusing by intermittent movement according to the width of the scooping fusing blade. Feed it onto the punching table. This intermittent movement is controlled by detecting the printed pattern or phototube mark with a phototube, and when the label comes to a predetermined position, the fusing blade comes down 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 part of the punching blade die as shown in Fig. 3 is used to connect a part of the periphery of the label part 4 to the blank part 5 of the raw material as shown in Fig. 2. When the sheet was left in this state, the removed label portion 4 was attached to the sheet. This is convenient because it is transferred as it is, so it does not scatter or get into the hot cutting blade mold and melt.

After the manufacturing process is completed, the labeled sheet manufactured in this way can be used by manually or mechanically cutting off the connecting portion 6 and separating and recovering only the label.

In this way, in the fusing punching process, when the connecting part 6 is left, the thickness of the heat punching part 7 is set to be less than the thickness of the backing sheet, or the label sheet is cut halfway so that only the heat-fusible sheet l for the backing sheet remains. Depending on the extent to which the label sheet is melted and cut, the label sheet can be melted from above and the label sheet alone can be melted completely or halfway.

By doing this, the irregular cut surface that occurs when the label is removed after the process is finished will only appear on the backing sheet.
The edges of the printed surface of labels that are actually 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 attached to the back side is obtained, which can be used as a label by pasting it onto a package of a predetermined 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 smooth and strong compared to mechanical cutting using a simple blade, and furthermore, the edge of the label is smooth and strong even to the heat-melting backing material. In this case, even though the punching is performed by thermal cutting, the adhesive interposed between the sheets prevents fusion, so that both heat-fused film sheets 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 you peel off a part of the periphery by hand,
From there, you can easily peel off the backing sheet.

This semi-molten state holds the backing sheet firmly on the label until just before use unless it is rubbed, so there is no inconvenience that the release paper will peel off before use, and there is no risk of reducing the adhesive strength of the label. give.

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 bridge does not damage the stand, improving the efficiency of the manufacturing process, and further improving the working environment. The big advantage is that it is 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. 2 is a partial cross-sectional view showing the structure of a laminated sheet used in the manufacturing method of the present invention, FIG. It is an enlarged view of the notched part of the 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, 7: Cut-out portion of fusing blade type. , 8
;It is a fusing blade. Patent applicant Yamagata Gravure Co., Ltd.

Claims (1)

[Claims] 1. While continuously feeding out a long heat-soluble sheet having an adhesive-resistant releasable surface, continuously feeding out a long printed thermoplastic resin film sheet at the same speed so as to polymerize the sheet. Then, an adhesive is interposed between the two sheets, and the sheets are pressed and bonded using a roll.Then, the adhesive laminated sheet is moved intermittently on a punching table, and the printed pattern or phototube mark on the sheet is made by a phototube. Detect and
In response to this signal, a high-temperature fusing punching blade is lowered onto a table, and the laminated heat-fusible sheet and thermoplastic resin sheet are cut out integrally into a predetermined shape by fusing. .