JP2949338B2 - Method for producing label with glossy surface - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a glossy surface on a surface of paper or the like and a method for manufacturing a label having a glossy surface.

[0002]

2. Description of the Related Art A method disclosed in Japanese Patent Publication No. 6-7298 has been invented as a method for producing a label having a glossy surface in which a glossy portion is formed on the entire surface or a part of the surface of the label. In this apparatus, an adhesive can be applied to the surface of a label sheet by using one of printing units provided in a general multicolor printing apparatus.

As shown in FIG. 5, a label paper (1) is attached to a release liner (10) by an adhesive layer (12) provided on the back surface, and a printing section comprising three printing units.
(P) is sent intermittently. The printing ink (3) is applied to the surface of the label paper (1) by the first and second printing units (31a) and (31b).
2) is applied, then the last third printing unit (31c)
And a transparent adhesive (30) is applied.

Thereafter, a cover sheet (2) made of a transparent resin is adhered to the surface of the label paper (1). In the printing section (P), when the adhesive (30) is applied to the entire surface of the label sheet (1), the covering sheet (2) becomes the label sheet (1).
When the adhesive (30) is applied to a part of the surface of the label paper (1) and the adhesive sheet (2) is applied to a part of the surface of the label paper (1), It will be applied only to the application area of 30).

[0005] In the punching section (N), only the label paper (1) and the covering sheet (2) are the predetermined product labels.
(R) punched into this punched section (N)
In the scrap removal section located after, the scrap part (S) in the outer peripheral area of the product label (R)
(10) Peeled off from above. In the case where the covering sheet (2) is applied only to the application area of the adhesive (30) partially formed on the surface of the label paper (1), the punching section is used.
In (N), the label sheet (1) and the covering sheet (2) are punched together along the outer periphery of the product label (R), and at the same time, the covering sheet (2) is Only 2) is punched.

[0006] Thus, a label in which the covering sheet (2) is adhered to the whole or a part of the surface of the release liner (10)
A label continuum in which (R) is continuously arranged is completed. The surface of the product label (R) manufactured as described above is entirely or partially protected by the covering sheet (2) and the gloss of the covering sheet (2) becomes the gloss of the label (R) as it is, A beautifully finished label (R) can be provided.

Further, in this manufacturing method, the adhesive (30) can be applied on the label paper (1) by the conventional printing unit, so that the back surface of the covering sheet (2) to be adhered thereon can be applied. Does not require an adhesive and a release paper covering the adhesive. Therefore, the coated sheet with adhesive can be
Compared with the production method of the type of attaching to the surface of (1), the production cost can be reduced by the amount of the release paper.

[0008] The same applies to a configuration in which an apparatus for applying the adhesive (30) is separately provided following the printing section (P).

[0009]

However, in the conventional manufacturing method as described above, in order to form a glossy portion, the coated area of the adhesive must be covered with the covering sheet (2), and one label is required. Each time, the cost for the covering sheet (2) is required, and in some cases, a separate step of punching the outer periphery of the covering area of the covering sheet (2) is required.

[0010] In addition, when the covering sheet (2) is inadvertently partially peeled off from the label sheet (1) due to poor adhesion, there is also a disadvantage that it becomes unsightly. An object of the present invention is to provide a method of manufacturing a label having a glossy surface, in which a manufacturing process can be simplified and a manufacturing cost can be reduced.

[0011]

In order to solve the above-mentioned problems, the invention according to claim 1 is directed to a method of applying a brightener to a range to be finished on a glossy surface of a label sheet; A smoothing step of smoothing the surface of the brightener, and a punching step of punching a predetermined range including the application area of the brightener into a predetermined shape, wherein the brightener is a mixture of a printing ink and an adhesive. The coating is applied by a printing plate of a printing unit of a printing apparatus, and the smoothing step is a step in which a peelable surface is pressed against a surface of the brightener in a rolling contact state, A step of clamping the release sheet together with the label paper by a pair of pinch rollers so that the release surface is a release surface of the release sheet and presses the release surface of the release sheet; And to cure the brightener roughening process simultaneously with or after "that is obtained by said.

Since the brightener is a mixture of a printing ink and an adhesive, the brightener can be applied to the label paper surface using a conventional printing apparatus. With such a brightening agent, the surface of the label paper is uneven when it is applied to the surface of the label paper, so that gloss cannot be obtained as it is. Therefore, in the next smoothing step, by smoothing the surface of the brightener,
The surface of the brightener becomes a glossy surface. Furthermore, since the brightener is set so as to be cured at the same time as or after the smoothing step, even if the covering sheet is not adhered to the surface of the brightener, the surface is not sticky.

[0013]

In the case where a printing step of printing a predetermined pattern or the like on the surface of the label paper is provided before the brightener applying step,
A brightener is applied to the entire surface or a part of the surface of the label paper including the printing portion printed in the printing process. Incidentally, if the printing ink and the adhesive constituting the brightener are set to be transparent, even if the brightener is applied on a printed portion, the printed portion can be seen through the brightener. it can.

Although the surface of the brightener as applied is uneven, the surface of the brightener becomes a smooth surface in the next smoothing step. Thereby, the application area of the brightener becomes a glossy portion. Incidentally, the adhesive force of the adhesive constituting the brightener can be transferred from a transfer roller to a printing plate in a printing process, and can be transferred from the printing plate to the surface of the label sheet in the same manner as ordinary printing ink. If it is set to be weak enough to be transferable, it can be applied to the printing unit of the conventional label printing device in the same way as the printing ink in the same manner as the printing plate, and in the smoothing step, The surface of the brightener can be easily smoothed. Further, at the same time or after the surface of the brightener is smoothed, since it was set to be cured, even without applying a coating sheet on the surface of the brightener, the surface is not sticky, It will function as a gloss part.

[0016] Then, in the punching step, the label paper is punched into the shape of a product label so as to include the range to which the brightener is applied, whereby a label having a glossy surface is completed. Incidentally, the smoothing step is a step of pressing the releasable surface against the surface of the brightener in a rolling contact state, wherein the releasable surface is, for example,
The surface is formed with a silicon film or the like and has a high releasability.

The term "pressing in a rolling contact state" means, for example, that, of a pair of rollers driven synchronously, the surface of the roller corresponding to the surface of the brightening agent is made a peelable surface, and between these rollers. Insert the label paper. Accordingly, the surface of the brightener is pressed into a rolling contact state by the peelable surface of the roller and is smoothed.

The release sheet is a release surface of a release sheet, and the release sheet is pressed against the surface of the brightener by a pair of pinch rollers together with the label paper. As an endless belt-like sheet, so that the peeled surface is outside, hung on a plurality of rollers including the pair of pinch rollers, with the rotation of each roller,
If the rotation sheet is set to run, there is no waste in the release sheet. Further, if the adhesive force of the adhesive constituting the brightener is set to be weak enough that the peeling surface of the release sheet can be easily peeled off even when the peeling surface is adhered, the pinch roller allows the surface of the brightener to be peeled off. Even when the label sheet and the release sheet are squeezed so that the release surfaces of the release sheet correspond to each other, the two easily separate from each other with the rotation of the pinch roller. At the same time as the separation, the surface of the brightener is smoothed.

[0019]

Further, in the invention according to the first aspect, as described in the second aspect, "drying the surface of the brightener applied in the brightener applying step after the smoothening step" Of the brightening agent smoothed in the smoothing step, the surface of the brightener can be positively dried. Specifically, as in the invention according to claim 3, "the brightener is a mixture of an ultraviolet curable printing ink and an adhesive, and the weight ratio of the printing ink to the adhesive is 60%. : 40 to 80:20, preferably 70:30, and providing an ultraviolet irradiation step of irradiating ultraviolet rays after the smoothing step ”.

[0021]

[0022]

As described above, according to the first aspect of the present invention, a brightener is applied within the range of a product label without attaching a conventional covering sheet, and the surface of the product label is coated. Since a label having a glossy surface can be manufactured only by smoothing the label, the manufacturing cost of the label having a glossy surface can be reduced. Further, since there is no need to provide a step of attaching the covering sheet and a step of punching out only the covering sheet when the covering sheet is partially adhered on the label paper, the label having a glossy portion on the surface is not required. The manufacturing process can be simplified.

In the smoothing step, the surface of the brightener can be made smooth by simply pressing the peelable surface against the surface of the brightener in a rolling contact state. There is an effect that the surface of the brightener can be easily smoothed. If the release surface is a release surface of the release sheet and the release sheet is a single belt-shaped sheet that rotates and travels, there is no waste of material. Therefore, there is an effect that a smooth surface can be formed on the surface of the brightener without increasing the manufacturing cost.

According to the second aspect of the present invention, the same effect as the first aspect is obtained, and the surface of the brightener is positively cured after the smoothing step. There is no inconvenience that the surface hardens before smoothing the surface of the agent, and by accelerating the hardening of the brightener after smoothing, the product labels after punching are inadvertently stuck together, The inconvenience of dust and the like adhering to the surface of the brightener can be prevented.

Further, according to the third aspect of the present invention,
Since the brightener is an ultraviolet-curable printing ink, there is no difficulty in applying the brightener, and it is possible to apply even finer details, and no poor coating occurs. further,
Since the brightener is set so as to be cured in an ultraviolet irradiation step provided after the smoothing step, there is an inconvenience that the brightener is cured during the period from the completion of the application of the brightener to the smoothing step. There is no.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described.
This will be described together with the illustrated example. FIG. 1 is an explanatory view showing a method for manufacturing a label having a glossy surface according to the first embodiment of the present invention. In this embodiment, an adhesive layer (12) is formed on the back surface of the label paper (1), and the adhesive layer (12) is covered with a release liner (10),
A belt-shaped sheet (13) is configured. The belt-shaped sheet (13) is wound in a roll shape, is pulled out such that the release liner (10) faces down, and is sent to each section while running intermittently.

As a label printing apparatus provided in the printing section (P) for carrying out the method of the present invention, a conventional multi-color printing apparatus can be employed.
An apparatus having three printing units (31a) (31b) (31c) is used. The strip-shaped sheet (1
3) is first sent to the printing section (P), and when the movement of the belt-shaped sheet (13) is stopped, the label paper (1) is removed by the first two printing units (31a) and (31b). The printing ink (32) is applied to the surface to form a printed portion including characters and figures.

Then, in the last third printing unit (31c), a transparent brightener (30a) is applied from above the printing section. In this state, the upper surface of the brightener (30a) is an uneven surface as shown in FIG. Brightener (3
As 0a), a transparent ink containing an emulsion-type transparent adhesive is employed, and it is assumed that the transparent ink is partially applied to the upper surface of the design portion in the printing portion.

The weight ratio between the transparent ink and the adhesive is about 60:40 to 80:20, preferably 7:40.
0:30. The peeling resistance of the brightener (30a) was so weak that it could be easily peeled off even if a synthetic resin sheet was pressed for smoothing. Thereafter, in this example, a release sheet (22) having a release surface such as a silicone resin layer as a release surface is pressed against the surface of the brightener (30a) in a rolling contact state. , Is configured in the form of an endless belt, three rollers (4a) (4b) (4c),
The vehicle travels with the peeled surface facing outward.

The strip-shaped sheet (13) is inserted and run together with the release sheet (22) between a pair of pinch rollers (4b) and (4d) driven synchronously. During this time, the release surface of the release sheet (22) is pressed against the surface of the label paper (1) in a rolling contact state, whereby the surface of the brightener (30a) is smoothed. Incidentally, since the adhesive strength of the surface of the brightener (30a) is as described above, even if the release surface of the release sheet (22) is pressed against this surface, the release sheet (22) travels along with the release sheet (22). The peeled surface of (22) is smoothly peeled from the surface of the brightener (30a).

Then, in the next punching section (N),
Only the label paper (1) is punched along the shape of the product label (R) including the printing section and the application area of the brightener (30a). Then, in the post-process of this punching section (N),
The scrap part (S) of the label paper (1) in the outer peripheral area of the product label (R) is removed, and the product label (R) is continuously placed on the scrap part (S) and the release liner (10). Is wound up separately from the label continuum arranged in.

The product label (R) manufactured by the above-described manufacturing method has an aspect in which a printed portion is formed on the surface and a brightener (30a) is applied to a part of the printed portion. Since the brightener (30a) is transparent as described above, a pattern or the like that is synthesized and colored by the printing ink (32) can be seen through the brightener (30a), and the surface of the brightener (30a) is smooth. Therefore, gloss is recognized in the application area of the brightener (30a).

The brightener (30a) is set to have a weak adhesive force as described above, but the product labels (R) are stuck to each other, carelessly stuck to other places, or The belt-like sheet (13) so that there is no inconvenience such as dust sticking to the surface
After passing between the pressing roller (4b) and the driving roller (4d), and before the punching section (N), a drying promoting section is provided to accelerate the drying and curing of the brightener (30a). It is good to let it.

As the brightener (30a), a mixture containing the same ultraviolet-curable emulsion-type adhesive as the ultraviolet-curable UV ink can be used. Since this brightener (30a) is of a type that is cured by irradiating ultraviolet rays, the ultraviolet irradiating part shown by a two-dot chain line in FIG.
(M) should be provided. In this case, the ultraviolet irradiation unit
(M) functions as the drying promoting section.

In order to smooth the surface of the brightener (30a), instead of the release sheet (22), the pressing plate (5) having a smooth lower surface (50) as shown in FIG. ) May be provided so as to be able to move up and down freely. In this case, at the lowest position of the pressing plate (5), the smooth release surface (50) is coated with the brightener (30a) applied on the printing ink (23) on the surface of the label paper (1). The height of the lowest position of the pressing plate (5) should be set so that it can be pressed lightly.

If the adhesive strength of the brightener (30a) is set to a weak level as described above, after the surface of the brightener (30a) is pressed by the release surface (50), the pressing plate (5) rises. Also, the brightener (30a) is smoothly separated from the release surface (50),
There is no inconvenience that the belt-like sheet (13) partially rises with the (30a) adhered to the pressing plate (5). In this embodiment, the entire surface of the brightener (30a) is covered with the pressing plate (5).
By means of the peeling surface (50), it can be pressed at once with a uniform force. As a result, the surface of the brightener (30a) can be easily and reliably smoothed.

As the brightener (30a), a translucent or opaque agent can be used depending on the application.
Also, it goes without saying that the application area may be the non-application area of the printing ink or the entire surface of the product label (R). In each of the above embodiments, the setting is made so that the brightener (30a) can be applied by the third printing unit (31c) constituting the printing unit (P). However, as shown in FIG.
The brightener application device (31d) for applying a) may be provided separately from the printing unit (P).

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a method for manufacturing a label having a glossy surface according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a state of a brightener before being smoothed.

FIG. 3 is an explanatory view showing another example of the smoothing step of the embodiment of the present invention.

FIG. 4 is an explanatory diagram showing an example in which a gloss applying device is provided separately from a printing unit.

FIG. 5 is an explanatory view showing a conventional method for producing a label having a glossy surface.

[Explanation of symbols]

 (1) ········ Label paper (30) ·········· Glossing agent The same reference numerals in the drawings denote the same or corresponding parts.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B31D 1/02 G09F 3/00 G09F 3/02

Claims (3)

(57) [Claims] 1. A brightener applying step of applying a brightener to an area to be finished on a glossy surface of a label paper, a smoothing step of smoothing the surface of the brightener, and an application area of the brightener. A punching step of punching a predetermined range into a predetermined shape, wherein the glossing agent is a mixture of printing ink and an adhesive and is applied by a printing plate of a printing unit of a printing apparatus, and the flattening is performed. The step is a step in which the releasable surface is pressed against the surface of the brightener in a rolling contact state, and the releasable surface is a release surface of the release sheet and the release surface of the release sheet is pressed. Therefore, the step of pressing the release sheet together with the label sheet by a pair of pinch rollers, and the brightener is cured simultaneously with or after the smoothing step Method for producing a label having a glossy surface to symptoms. 2. The method for producing a label having a glossy surface according to claim 1, further comprising a drying promotion step for promoting drying of the surface of the brightener applied in the brightener applying step after the smoothening step. Method. 3. The brightener is a mixture of an ultraviolet-curable printing ink and an adhesive, and the weight ratio of the printing ink to the adhesive is 60:40 to 80:20, preferably 70:40. The method for producing a label having a glossy surface according to claim 1 or 2, wherein an ultraviolet irradiation step of irradiating ultraviolet light is provided after the smoothing step.