JPH067298B2 - Label manufacturing method - Google Patents

Description

TECHNICAL FIELD The present invention relates to a label manufacturing method, and more particularly to a label of a type that coats a surface of a required portion of the label. The covering sheet provided with the layer was attached, but in the printing step, the joining agent layer was applied and the covering sheet was attached to the joining agent coating layer. As a covering sheet,
The purpose of the present invention is to make it possible to use a sheet that does not have a bonding agent layer and to simplify the manufacturing process and reduce the manufacturing cost.

[Prior Art and its Problems] As a label manufacturing method for protecting the printing surface of a label, there is one disclosed in Japanese Patent Publication No. 51-42480, and as shown in FIG. In the usual label manufacturing process, after the printing process is completed, a transparent cover sheet (2) having a bonding agent layer (21) is attached to the back surface,
Then, the label is manufactured by punching into a predetermined shape in the punching section (N).

In this conventional type, a predetermined printing is applied to the surface of the release liner (10), which has been subjected to a release treatment, while the printing paper (1) attached to the upper surface passes through the print section (P). Is
On the surface after this printing is completed, it is introduced by another route and the release mount
The covering sheet (2) peeled from the (20) is the printing paper (1).
The printing surface of the printing paper (1) is covered with the transparent covering sheet (2), and the printing surface of the printing paper (1) is then stamped into a predetermined shape by the punching section (N). Does not come into direct contact with the outside air, resulting in a highly durable label. Further, since it is covered with the transparent cover sheet (2), the label surface has a gloss.

However, in the case of this conventional method, the covering sheet
As (2), it is necessary to use so-called tack paper provided with the release mount (20) and the bonding agent layer (21). Further, it was impossible to cover a part of the surface of the label with the cover sheet (2).

In order to eliminate such inconvenience, an adhesive or an adhesive is applied to the surface of the printing paper (1) that has passed through the printing section (P) by a special application device, and then the covering sheet (2) is covered. A method of punching into a predetermined shape by the punching section (N) can be adopted. However, in this case, the entire apparatus becomes large in size, and it is impossible to apply an adhesive or a pressure-sensitive adhesive for sticking the covering sheet (2) on some ordinary label printing apparatuses. is there.

According to the present invention, such a "printing paper (1) which constitutes a label and is subjected to a predetermined printing is punched into a predetermined shape, and the label is continuously formed on the upper surface of the peeling mount (10) at regular intervals. An apparatus for manufacturing labels arranged such that a part or all of the printing surface of the label is covered with a covering sheet (2). The task is to be able to cover a part or all of the surface.

* Regarding the invention of claim 1 [Technical means] The technical means of the present invention taken to solve the above-mentioned problem is that "the printing section (P) has a plurality of printing units (31) (in the running direction of the printing paper). 31) is continuous, and the desired printing is performed on the surface of the printing paper (1) by the printing unit on the upper side of the plurality of printing units (31) (31), and the printing section (P) The printing unit (31) in the final step applies a bonding agent (30) having an adhesive function or an adhesive function to a required area of the printing surface (11) of the printing paper (1), and in the subsequent step, After sticking the covering sheet (2) on the bonding agent application area, the covering sheet (2) alone or the covering sheet (2) and the printing paper (1) are cut by the punching section (N).
And both are punched into a predetermined shape, and the adhesive force or adhesive force of the bonding agent (30) is set so that it can be transferred from the transfer roller to the printing plate in the printing unit and can be transferred from the printing plate to the symmetrical surface. I did that.

[Operation] The above technical means of the present invention operates as follows.

On the surface of (1) of the printing paper which has passed through the printing section (P), a predetermined printing pattern and a bonding agent (30) in a required area of this surface.
Has been applied. When the covering sheet (2) is attached to this surface and punched into a predetermined shape by the punching section (N), a label in which the portion coated with the bonding agent (30) is covered with the covering sheet (2) is completed. To do.

Here, the bonding agent (30) applied in the printing section (P) has an adhesive force or an adhesive force that can be transferred to the symmetrical surface by the printing plate of the printing unit (31) like the printing ink. Since it has the adhesive force or the adhesive force that can be transferred from the transfer roller to the printing plate, it is necessary to correspond to the printing unit (31) of the label printing device in the same manner as the printing ink. , Can be applied in a shape following the plate of the printing unit (31).

Further, since the covering sheet (2) is adhered by the bonding agent (30) applied on the surface of the printing paper (1), the covering sheet (2) includes a release mount (20) and a bonding agent. It is not necessary to use so-called tack paper with the layer (21).

When the entire surface of the printing portion of the printing paper (1) is covered with the transparent covering sheet (2), the bonding agent (30) is made of a transparent material and is covered in the punching section (N). By punching both the sheet (2) and the printing paper (1) into a predetermined shape, a label whose surface is covered with the transparent covering sheet (2) is completed. In this punching, only the printing paper (1) and the covering sheet (2) attached to the front surface of the printing paper (1) are punched without punching the release mount (10) provided on the back surface of the printing paper (1). It will be pulled out.

When manufacturing a label in which a part of the surface of the label is covered with the covering sheet (2) having a predetermined shape, only the covering sheet (2) is once punched into the predetermined shape in the punching section (N). After that, the printing paper (1) is punched into a predetermined label shape.

[Effects] The present invention having the above-described configuration has the following unique effects.

Cover sheet without release liner (20) and bonding agent layer (21)
Since (2) is attached, there is less waste of material compared to the conventional one, and the label can be manufactured at a lower cost accordingly.

Further, since the bonding agent (30) for sticking the covering sheet (2) can be applied by the printing unit (31), it is not necessary to use a special bonding agent applying device, and the conventional label printing device can be used as it is. There are advantages.

A label in which only a part of the surface of the label is covered with the cover sheet (2) can be easily manufactured.

* Regarding the invention of claim 2, the invention of claim 2 is the bonding agent in the invention of claim 1 above.
The composition is specified with (30), and this bonding agent (30) is "a UV-curable printing ink".

Therefore, there is no difficulty in applying the bonding agent. That is, application failure of the bonding agent is unlikely to occur.

In particular, in the case of using the bonding agent having this composition, the bonding force between the covering sheet (2) and the printing surface (11) is weaker than that of a normal pressure-sensitive adhesive, but the bonding force of about the printing ink is secured. Therefore, it is suitable for a label of a type that does not require a strong joining force. Further, since the ink is an ultraviolet curable ink, the bonding agent (30) does not harden between the time when the application of the bonding agent (30) is completed and the time when the coating sheet (2) is attached, and the coating is performed. The poor bonding of the sheet (2) is unlikely to occur.

* Regarding the invention of claim 3, the invention of claim 3 is similar to the invention of claim 2 above.
The composition of the bonding agent (30) is specified, and "the bonding agent (30) is a composition containing printing ink containing an adhesive or an adhesive".
Therefore, in addition to having the same effect as the invention of claim 1, the bonding strength of the cover sheet (2) is improved as compared with the invention of claim 2.

* Regarding the invention of claim 4, the invention of claim 4 specifies the composition of the bonding agent (30), the application area of this bonding agent and the constitution of the covering sheet (2). The composition of the above, and the application area of this bonding agent is set to an area that covers the entire label surface, and the covering sheet (2)
Is a transparent cover sheet ”.

In the present invention, the label surface is the front side and the covering sheet is
The label protected by (2) and allowing the printed contents to be seen through from the surface can be easily manufactured.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 7.

As the label printing apparatus used for carrying out the method of the present invention, a multicolor printing apparatus is suitable, but in the embodiment shown in the printing, an apparatus provided with three printing units (31) (31) is used. The case of carrying out the method of the present invention will be described.

As shown in FIG. 1, the printing paper (1) fed to the printing section (P) is the same as in the case of manufacturing a conventional label, and is provided with a bonding agent layer (12) on the surface of the release mount (10). It is a strip-shaped material to which the printing paper (1) is attached.

The printing paper (1) is intermittently fed to the printing section (P), but when the movement of the printing paper (1) is stopped, the desired ink or bonding agent (30) is applied to each printing unit (31). ) Is applied.

In this embodiment, the bonding agent (30) is applied by the printing unit (31) located in the final printing process section, and the printing ink (32) (32) is applied in the two printing units (31) (31) in front of it. It is designed to be applied. Further, as the bonding agent (30),
In this embodiment, a transparent material is used, and the bonding agent (30) is applied to a region slightly wider than the entire surface of the label.

Here, as the bonding agent (30), a transparent ink containing an emulsion type pressure-sensitive adhesive was adopted, and the weight ratio of the transparent ink and the pressure-sensitive adhesive was set to about 70:30. When the bonding agent (30) is applied to the printing surface, the bonding agent component (30b) is dispersed in the printing ink layer (30a) as shown in FIG.

A desired design is applied to the surface of the printing paper (1) that has passed through the printing section (P), and a region slightly wider than the entire area of the design surface is covered with the bonding agent (30).

After that, when the cover sheet (2) is attached to the surface of the printing paper (1), the cover sheet (2) is attached by the bonding agent (30) over the entire area corresponding to the label surface. Will be done. When the printing paper (1) having the covering sheet (2) attached to the surface thereof reaches the punching section (N), only the upper layer portion of the release liner (10), that is, the printing sheet Only the paper (1) and the covering sheet (2) are punched into a predetermined label shape. Then, in the post process of this punching section (N), the scrap portion in the outer peripheral area of the label is
(S) is peeled off and removed, and this scrap part and peeling mount (10)
The label continuous body in which the labels (R) are continuously arranged on the surface of the is wound up separately.

At this time, each label of the label continuum is covered with the transparent covering sheet (2) over the entire surface as shown in FIG. Further, since the bonding agent (30) to which the cover sheet (2) is attached is transparent, the pattern synthesized by the printing inks (32) and (32) can be seen through the cover sheet (2). That is, it is possible to manufacture a label similar to the label manufactured by the conventional method of Japanese Patent Publication No. 51-42480.

In the case of the bonding agent (30) used in this example, the adhesive force of the covering sheet (2) was insufficient at the time of punching into a predetermined label shape after passing through the punching section (N). However, this adhesive strength became sufficient when left for a certain period of time. For example, when the medium is adopted as the transparent ink, the emulsion type acrylic ester adhesive is used as the bonding agent, and the above ratio is blended, the covering sheet (2) can be easily formed by leaving it for about 24 hours. Is no longer peelable. The peel strength at this time is 500 to 100.
It was about 0 g / 25 mm ² .

Cover sheet (2) for covering the printing surface (11) of the printing paper (1)
Considering that the adhesive force between the printing paper (1) and the surface of the printing paper (1) is weaker than that between the printing paper (1) and the surface to be adhered, the bonding agent ( There is no need to increase the adhesive strength (bonding force) of 30).

For example, with a normal label, the resistance when peeling this label is set to about 1000 to 1500 g / 25 mm ^2, but the resistance when peeling the cover sheet (2) from the surface of the printing paper (1). About 500g / 25mm ² is enough. This is because the coating sheet (2) is attached to the printing surface which is in a dry and cured state, so that the adhesive force is more than the adhesive force (peeling resistance) between the printing paper (1) and the printing ink. Is unnecessary. That is, even if the adhesive force between the covering sheet (2) and the printing surface is set to be larger than the adhesive force between the printing ink and the surface of the printing paper (1), the covering sheet (2) and the printing paper (1) are This is because the joining force of does not exceed the joining force of the former adhesive force.

Next, in the second embodiment shown in FIGS. 4 and 5, a part of the printing surface of the printing paper (1) is covered with the covering sheet (2). As shown in the figure, a part of the surface of the printing ink (32) printed by the printing unit (31) (31) is coated with the bonding agent (30) by the printing unit (31) at the final position. To be done. Thereafter, as in the first embodiment, the cover sheet (2) is attached and punched into a predetermined shape by the punching section (N) to manufacture a label. In this embodiment, since the cover sheet (2) covers a part of the label surface, in the punching section (N), as shown in FIG.
The punching of only (2) and the blanking of the covering sheet (2) and the printing paper (1) are performed at the same time. In other words, the punching section (N) has two punching blades,
The former punching is performed by the punching blade on the upstream side in the intermittent transfer direction of the printing paper (1), and the latter punching is performed by the punching blade on the downstream side. Then, the scrap portion of the cover sheet (2) and the printing paper
Both the scrap portion (1) and the scrap winding portion are peeled off and removed at the scrap winding portion. At this time, the covering sheet
As (2), a strip-shaped sheet having a width slightly wider than the application area of the bonding agent (30) may be used.

In addition, as shown in FIG. 7, the width of the covering sheet (2) is the printing paper.
When the covering sheet (2) which is smaller than the width of (1) and covers the application area of the bonding agent (30) is located at the center of the printing paper (1), as shown in FIG. The punching of only the sheet (2) and the punching of the printing paper (1) may be punched by separate punching sections (N), and the scrap portion may be peeled and removed separately after each punching is completed.

The label produced in this manner can be used as a lottery label or the like when the cover sheet (2) is opaque.
In the case of this label with lottery, if the covering sheet (2) is punched out in a range wider than the range of the bonding agent (30) applied to the printing surface (11), the covering sheet (2) is easily peeled off. .

As the bonding agent (30) used in the method of the above example, the weight ratio of the transparent ink and the pressure-sensitive adhesive was set to about 70:30. As for this ratio, a ratio of about 50:50 to 90:10 can be adopted, and preferably 75:25 to 63:35.

Further, as the transparent ink, an oxidative polymerization type oil-based ink or an ultraviolet curing type UV ink can be used, and as the pressure-sensitive adhesive, various types can be appropriately used, and an adhesive having a long curing time can also be used.

In the extreme case, that is, the cover sheet (2) and the printing surface (1
In the case of a label in which the bonding strength with 1) may be weak, a composition having a property of delaying the drying and curing rate of the printing ink may be contained. In this case, the printing ink is
This is because it functions as 0) and has a certain adhesive force or adhesive force.

The invention according to claim 2 is that the ultraviolet-curable printing ink is used as the bonding agent (30) without containing the composition for retarding the early curing rate.

To carry out the present invention, the apparatus of each of the above embodiments can be used as it is. Since this printing ink is of a type that does not cure unless it is irradiated with ultraviolet rays, it is advisable to provide an ultraviolet irradiation section (M) immediately before the punching section (N) as shown by the imaginary line in FIG.

Also, as the bonding agent (30), a translucent one depending on the application,
It goes without saying that opaque ones can also be adopted.

[Brief description of drawings]

FIG. 1 is an explanatory view of a first embodiment of an apparatus for carrying out the method of the present invention, FIG. 2 is a detailed view of a bonding agent (30), FIG. 3 is a detailed view of a completed label, and FIG. 4 is a second view. FIG. 5 is a detailed view of an essential part of the embodiment, FIG. 5 is an illustration of the punching section (N) in this case, FIGS. 6 and 7 are illustrations of another example of the second embodiment, and FIG. 8 is a conventional example. It is an explanatory view of, in the figure, (1) · · printing paper (10) · · peeling mount (2) · · cover sheet (P) · · printing section (31) · · printing unit (11) · · printing Surface (30) ・ ・ Bonding agent (N) ・ ・ Punching section

Claims (4)

[Claims] 1. A printing paper (1) which constitutes a label and is printed in a predetermined manner is punched into a predetermined shape so that the label is continuously arranged at a constant interval on the upper surface of a release mount (10). In the method for producing a label, wherein a part or the whole of the printing surface of the label is covered with the covering sheet (2), a plurality of printing sections (P) are provided in the running direction of the printing paper. The printing units (31) and (31) are continuous, and the desired printing is performed on the surface of the printing paper (1) by the printing unit on the upper side of the plurality of printing units (31) and (31), The bonding unit (30) having an adhesive function or an adhesive function is applied to a required area of the printing surface (11) of the printing paper (1) by the printing unit (31) of the final step in the printing section (P), In the subsequent process, the covering sheet (2) is attached to the bonding agent application area. And then the cover sheet (2) alone or cover sheet depending on the punching section (N)
(2) and the printing paper (1) are both punched into a predetermined shape, and the adhesive force or adhesive force of the bonding agent (30) can be transferred from the transfer roller to the printing paper plate in the printing unit so that it can be transferred from the printing plate. A manufacturing method of a label set to such a degree that it can be transferred to a symmetrical surface. 2. The method for producing a label according to claim 1, wherein the binder (30) is a UV-curable printing ink. 3. The method for producing a label according to claim 1, wherein the bonding agent (30) is a composition in which a printing ink contains an adhesive or a pressure-sensitive adhesive. 4. The bonding agent (30) is a transparent composition, the coating area of the bonding agent is set to an area covering the entire label surface, and the covering sheet (2) is a transparent covering sheet. 4. The method for manufacturing the label according to claim 3.