JP2000267568A - Label and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a label having high abrasion resistance and content resistance and suitable for large item small scale production while preparing a heat sensitive adhesive resin layer with little waste. SOLUTION: A heat sensitive adhesive resin layer 12 is formed on one face of a transparent film 11 of PET or the like to be stuck to an object and a reversely printed ink layer 13 is formed on the heat sensitive adhesive resin layer 12 to obtain the objective label 10. Since the heat sensitive adhesive resin layer 12 is present around a picture of the ink layer 13, the label 10 can be stuck to an item such as a bottom or package by activating the heat sensitive adhesive resin layer 12 of the label. The normal picture can be seen through the substrate film 11 and the heat sensitive adhesive resin layer 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a label and a method for producing the label.

[0002]

2. Description of the Related Art Conventionally, labels shown in FIGS. 6 and 7 are known.

[0003] A label 1 shown in FIG.
The ink layer 3 of the print pattern is fixed on the surface of the substrate 2, and the heat-sensitive adhesive resin layer 4 is formed on the back surface of the substrate 2.

In a label 5 shown in FIG. 7, an ink layer 7 of a reverse printing pattern is fixed on the back side of a base material 6 made of a polyethylene terephthalate (hereinafter referred to as PET) film or the like, and this ink is fixed. A heat-sensitive adhesive resin layer 8 is formed on the layer 7.

[0005]

However, in the label 1 of FIG. 6, since the ink layer 3 is exposed on the surface of the equipment 2,
After affixing the label 1 to a product such as a bottle, the product may come into contact with each other at the time of transportation or packing, or repeated collisions may cause abrasion on the ink layer 3 or the base material 2 and deteriorate the appearance quality of the product. Can occur.

Further, depending on the product, if the contents leak due to damage to the bottle or the like, the contents may damage the ink layer 3 of the label 1 or the waste may occur such as loss of commercial value due to dirt. .

Although the label 5 shown in FIG. 7 can avoid such a situation, it is advantageous for the production of a large number of labels, but the pattern of the label is frequently changed or a large number of variations are made. In the case of a label of a low-volume production type of another kind that is required, there is a problem that a large amount of unused labels are generated and the cost is increased.

That is, usually, the substrate 6 is 90 cm to 110 c
7 is a roll of a transparent film having a width of m. The label 5 shown in FIG. 7 is formed by printing a number of labels in reverse on the back surface of the transparent film drawn from the roll, and applying a heat-sensitive adhesive resin layer 8 to the coating apparatus. Coating.

The coating apparatus has a discharge port for discharging the heat-sensitive adhesive resin layer 8, and the discharge port of the coating apparatus is elongated in the width direction of the film. Coating devices having a discharge port of about 60 cm or more and having a shorter discharge port are limited in use, and are therefore of few types and are expensive.

When the heat-sensitive adhesive resin layer 8 is coated on the substrate 6, the operating speed of a coating device (usually called a ruder) for extruding the heat-sensitive adhesive resin layer 8 is usually as high as 100 m / min. Yes, for example, a 10 x 10 cm square label
In order to apply 0000 sheets, a base film having a width of 100 cm requires 100 m (1 minute). On the other hand, since the coating device needs to be changed depending on the type of the base film and the printing shell of the label by selecting the characteristics of the heat-sensitive adhesive resin layer 8, cleaning and discharging of the storage tank and the discharge port of the heat-sensitive adhesive resin layer 8 are required. Adjustment before coating is necessary by adjusting the amount (constant discharge amount, discharge speed, film thickness adjustment, etc.), and trial coating is performed to adjust the film thickness of heat-sensitive adhesive resin and coating unevenness. There is a need.

Since the amount of the base film and the amount of the heat-sensitive adhesive resin consumed in the trial coating are almost constant,
Although suitable for large lot labels ranging from 0 m to several km, there is a problem in that profitability does not match for small lot labels of 100 m or several hundred m.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and the quality of a printed pattern is not degraded due to scratches or contents. Suitable for and at low cost,
An object of the present invention is to propose a label having a short printing time and a method for manufacturing the label.

[0013]

According to a first aspect of the present invention, there is provided a label according to the present invention, wherein the base film is made of a transparent film, and the heat-sensitive adhesive resin layer is formed on the surface of the base material to be attached to the object. Is coated on one side, and an ink layer for reverse printing is formed on the heat-sensitive adhesive resin layer, except for a bonded portion of the heat-sensitive adhesive resin layer.

Further, according to the label manufacturing method of the present invention, there is provided a coating method having a discharge port extending in the width direction of the base film on the side of the sticking side of the transparent base film wound in a roll shape. The heat-sensitive adhesive resin layer is formed by the processing device, and the base film on which the heat-sensitive adhesive resin layer is formed is cut in the longitudinal direction of the base film so as to have a width larger than the width of the label pattern, and the cut base material is cut. The reverse printing label pattern having a width smaller than the width of the heat-sensitive adhesive resin layer is drawn in a line on the heat-sensitive adhesive resin layer of the film.

[0015] In a third aspect of the present invention, in the method for producing a label, a coating material having a discharge port extending in the width direction of the base film is provided on the side of the sticking surface of the transparent base film wound in a roll shape. After forming the heat-sensitive adhesive resin layer by the processing equipment,
The substrate film is cut by a first slitting device that cuts the substrate film into a narrow width with a plurality of cutting blades to form a printing substrate film, and the heat-sensitive bonding of the narrow printing substrate film is performed. On the resin layer, a reverse-printed label pattern having a width smaller than the width of the heat-sensitive adhesive resin layer is drawn in a plurality of rows to form a pattern label film, and the pattern label film is again formed with a second cutting blade having a plurality of cutting blades. Is characterized in that a label film in which label designs are arranged in a line is formed by the slitter device.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a label and a label manufacturing method according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic sectional view showing a layer structure of a label according to a first embodiment of the present invention. A label 10 is formed of a transparent film 11 (base film) made of PET or the like. A heat-sensitive adhesive resin layer 12 is formed on the surface to be attached to the object, and an ink layer 13 for reverse printing is formed on the heat-sensitive adhesive resin layer 12. The heat-sensitive adhesive resin layer 12 appears on the periphery of the ink layer 13 for reverse printing to form a bonded portion, and is bonded to the surface of the glass bottle 14 as shown in FIG. The bonded portion is formed in accordance with the outer diameter contour of the rectangular label so as to surround the pattern of the reverse printing.

For the transparent film 11, besides PET, polypropylene (PP), polystyrene (PS), polyvinyl chloride (PVC) or the like can be used. The heat-sensitive adhesive resin layer 12 is made of an ethylene-acrylate copolymer,
A resin mainly composed of an ethylene / methacrylic acid ester copolymer or the like is used. As the ink of the ink layer 13 for the reverse printing, an ultraviolet curable ink (UV ink) is used.

According to the label 10, a pattern composed of the ink layer 13 of reverse printing is drawn on the heat-sensitive adhesive resin layer 12, and the heat-sensitive adhesive resin layer 12 as a bonding portion is attached to the periphery of the pattern. Since the heat-sensitive adhesive resin layer of the label 10 is activated, the label can be attached to a product such as a glass bottle 14 and a regular pattern can be seen through the transparent film 11 and the heat-sensitive adhesive resin layer 12. . Further, since the ink layer 13 is located on the glass bottle 14 side and the surface of the label 10 is covered with the transparent film 11, the ink layer 13 is not deteriorated or abraded, and the contents are prevented from being altered or stained. And
It can withstand washing and the like.

Next, a method of manufacturing the label 10 will be described. FIG. 3 shows a process of forming a heat-sensitive adhesive resin layer on a film base paper and cutting the film into a narrow width. The film base paper 15 wound into a roll is made of, for example, PET, polypropylene (PP), polystyrene (PS), It is made of polyvinyl chloride (PVC) or the like.
PET with a width of 0 cm.

The film base paper 15 is pulled out from the roll, and an anchor agent 16 is applied by a coating roll 17 and an impression cylinder 18. An extruder 22 having a discharge port 22 </ b> A of a heat-sensitive adhesive resin 21 having a width of about 90 cm is guided by guide rolls 19 and 20 on a film base paper 15 coated with an anchor agent 16.
Sent below. From the discharge port 22A of the extruder 22, the heat-sensitive adhesive resin 21 is applied to the surface of the film base paper 15 on which the anchor coating is performed, and the heat-sensitive adhesive resin 21 is rolled.
And the entire surface of the film base paper 15 is applied by the impression cylinder 24. The film base paper 15 passes through the peeling roll 25, and the heat-sensitive adhesive resin 21 is fixed to the film base paper 15 in a short time,
The heat-sensitive adhesive resin layer 12 is formed on the film base paper 15.

The film base paper 15 on which the heat-sensitive adhesive resin layer 12 is formed is reduced to a width of 30 cm by a first slitter 26 provided with two cutting blades in the width direction of the film base paper 15.
It is equally divided and wound into a roll. Here, the width divided by the first slitter 26 can be adjusted to an arbitrary width.

The coated film base paper 27 coated with the heat-sensitive adhesive resin layer 12 is stored, and the label picture is printed based on the order for manufacturing the label 10.

FIG. 4 shows a process of performing three-color printing of six rows of label patterns on the cut coated film base paper 15.

In this printing process, the coated film base paper 27 is pulled out from a roll. The ink used is an ultraviolet curable UV ink, and the coated film base paper 27 is printed on the plate roll 30 so that the heat-sensitive adhesive resin layer 12 is printed.
A, 30B, 30C, chilled rolls 31A, 31B, 3
1C, pass through guide rolls 32A, 31B, 32C,
Three-color printing of yellow, magenta, and cyan is performed. Each of the plate rolls 30A, 30B, and 30C is a transparent film 1
A reverse printing relief plate is formed so that the reverse printing is performed so that the print pattern can be seen from one side. This printing may be offset printing or rotary screen printing.

A heat-sensitive adhesive resin or a heat-sensitive adhesive resin is formed on the reverse printing of the label so as to form a layer, or is formed in a dot-like, stripe-like, or lattice-like manner. Alternatively, reverse printing may be present in the layer of the heat-sensitive adhesive resin and the layer of the heat-sensitive adhesive.

In the printing process, the pattern of the label to be printed is printed so as to be a reverse printing pattern of six rows in parallel, and after the printing of the UV ink of each color is performed, the ink of each color is applied to the ultraviolet lamp 33A. , 33B and 33C.

The coated film base paper 27 on which the three-color printing of the UV ink has been performed is cut by the second slitter 34 into six label rolls each having a width of about 5 cm. On the separated label roll 35, a reverse printing pattern of the label is drawn in one line.

FIG. 5 shows a process of cutting the label roll printed according to FIG. 3 and attaching it to a bottle. UV
When the label roll 35 on which the reverse printing of ink has been printed is cut into individual labels and affixed to a glass bottle, the label roll 35 is fed between a pair of feed rollers 37 via a guide roll 36. A pair of feed rollers 3
The label rolls 35 sent out from the printers 7 and 37 are sent to a vacuum drum 43, and a cutter 38 at a predetermined length.
To form one label 10. The label roll 35 is sent to the vacuum drum 43 so that the heat-sensitive adhesive resin layer 12 is directed outward, and the cut label 1 is cut.
Hot air is blown from the hot air blower 39 to the heat-sensitive adhesive resin layer 12 of 0, so that the heat-sensitive adhesive resin layer 12 is activated.

A belt conveyor 40 is arranged near the vacuum drum 43, and a pressure bonding device 41 is arranged on the opposite side of the vacuum drum 43 with the conveyor 40 interposed therebetween. The crimping device 41 is configured to be able to advance and retreat to the vacuum drum 43 side by an air cylinder or the like, and is provided with a pair of crimping rolls 42.
After detecting the time 4, after a lapse of a predetermined time, the pressing device 41 approaches the glass bottle 14 to the vacuum drum 43 and presses the glass bottle 14 against the vacuum drum 43. Thereby, the pressing roll 42 is attached to the surface of the glass bottle 14 with the label 10.
Paste. The crimping device 41 that has pressed the glass bottle 14 against the vacuum drum 43 for a predetermined time is retracted to the original position.

According to the label manufacturing method of this embodiment, since the label picture is printed in reverse on the heat-sensitive adhesive resin layer 12 of the coated film base paper 27, the label can be adjusted in accordance with the required lot number of the label 10. The number of rolls 27 can be selected, which is advantageous for label printing of small lots and label production of small lots of other types.

In the above label manufacturing method, the existing extruder 22, the first slitter 26 and the second slitter 3 are used.
4. Since a UV printer can be used, there is no need to install or replace new manufacturing equipment, and the cost of manufacturing equipment does not increase. Therefore, the cost of labels for small-lot production of other types can be significantly reduced. I can do it.

[0033]

According to the label of the first aspect of the present invention, the reverse printing pattern is drawn on the heat-sensitive adhesive resin layer,
Since the heat-sensitive adhesive resin layer appears around this pattern, the heat-sensitive adhesive resin layer of the label can be activated to attach the label to a product such as a bottle or a package. You can see the regular pattern through the resin layer.

A substrate film having a width of about 90 cm to 110 cm is usually cut into a narrow width so as to be within the discharge port width of the coating device for the heat-sensitive adhesive resin layer. A heat-sensitive adhesive resin layer is applied to the film by a coating device, and a label pattern is drawn on the heat-sensitive adhesive resin layer in a plurality of rows (for example, m-1 rows). Since the material film can be cut again so that the patterns of the labels are arranged in a line, even when a small number of labels are manufactured, useless labels can be reduced as much as possible.

That is, since a heat-sensitive adhesive resin layer is previously formed on a film base paper as a base film and cut into a narrow width in accordance with the width of the plate cylinder and stored, the film base paper will be used in the subsequent production of a label. It is not necessary to adjust the thickness of the heat-sensitive adhesive resin layer or to adjust the coating unevenness.Because it can be used immediately for printing according to the order of the label, it is suitable for small-scale production of other products, and it is abrasion-resistant even when it is pasted on products. High resistance and content resistance.

According to the label manufacturing method of the second and third aspects of the present invention, as described above, the heat-sensitive adhesive resin layer is formed in advance on the film base paper, and the width is narrowed in accordance with the width of the plate cylinder. By preparing the labels, it is not necessary to adjust the thickness of the heat-sensitive adhesive resin layer of the film base paper or to adjust the coating unevenness in the subsequent production of labels. Take out the finished film base paper and draw the label pattern on the heat-sensitive adhesive resin layer of the coated film base paper, so that labels can be manufactured in a short time according to the number of required lots of labels, This is advantageous for producing small labels of other varieties. This depiction can be made by letterpress printing, offset printing, or screen printing.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing a layer configuration of a label according to a first embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view showing a state where the label of FIG. 1 is attached to a glass bottle.

FIG. 3 is a schematic view showing a process of forming a heat-sensitive adhesive resin layer on a base film and cutting it into a narrow width.

FIG. 4 is a schematic view showing a step of performing three-color printing on the cut base film of FIG. 3;

FIG. 5 is a schematic diagram of cutting a label roll printed according to FIG. 3 and attaching the cut label roll to a bottle;

FIG. 6 is a schematic cross-sectional view of a label in which a pattern is printed on the surface of a conventional paper base material.

FIG. 7 is a schematic cross-sectional view of a label in which a heat-sensitive adhesive resin layer is applied to a printed surface of a pattern of a conventional transparent film.

[Explanation of symbols]

 Reference Signs List 10 label 11 transparent film 12 heat-sensitive adhesive resin layer 13 picture ink layer 14 glass bottle 15 film base paper 21 heat-sensitive adhesive resin 22 extruder 28 first slitter 30A, 30B, 30C plate roll 31A, 31B, 31C chilled roll 32A, 31B, 32C guide Roll 33A, 33B, 33C Ultraviolet lamp 34 Second slitter 35 Label roll

Claims (3)

[Claims] 1. A substrate film is made of a transparent film, and a heat-sensitive adhesive resin layer is coated on one side of a surface of the base material to be attached to an object, and the heat-sensitive adhesive resin layer is bonded to the heat-sensitive adhesive resin layer. A label, wherein an ink layer for reverse printing is formed except for a part. 2. A heat-sensitive adhesive resin layer is formed on a bonding surface side of a transparent base film wound into a roll by a coating apparatus having a discharge port extending in a width direction of the base film. The base film having the heat-sensitive adhesive resin layer formed thereon is cut in the longitudinal direction of the base film so as to have a width larger than the width of the label picture, and the heat-sensitive adhesive resin layer is formed on the heat-sensitive adhesive resin layer of the cut base film. A method for producing a label, characterized in that a reverse-printed label pattern having a width smaller than the width of the label is drawn in a line. 3. A heat-sensitive adhesive resin layer is formed on a bonding surface side of a transparent base film wound in a roll by a coating apparatus having a discharge port extending in a width direction of the base film. The base film is cut into n + 1 by a first slitting device that cuts the base film into a narrow width by n cutting blades to form a printing base film. On the heat-sensitive adhesive resin layer, a reverse-printed label picture having a width smaller than the width of the heat-sensitive adhesive resin layer is drawn in m columns to form an m-row picture label film. A label film in which m label films are arranged in a line by using a second slitter having cutting blades.