JP2003114620A - Label sheet with protective film - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide such a label sheet with a protective film that a label the surface of which is coated with a protective film can be easily obtained and that the manufacture cost is low. SOLUTION: The label sheet 10 is composed of a semitransparent printing sheet 11 having a printing face which can be printed by a printer, a transparent pressure sensitive adhesive layer 12 formed in the opposite side of the printing sheet 11 to the printing face, and a transparent protective film 13 laminated on the pressure sensitive adhesive layer 12. The printing sheet 11 has a loop cut line 14 to form a label 25.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a label sheet with a protective film for forming a label whose surface is covered with a protective film.

[0002]

2. Description of the Related Art Conventionally, for example, labels attached to stationery items, mobile phones, storage containers, laboratory equipment, etc. have been widely used.
This label is, for example, a printing sheet having a printing surface printable by a printer, a pressure-sensitive adhesive layer laminated on the back side of the printing surface of the printing sheet, and laminated so as to cover this pressure-sensitive adhesive layer. By forming a loop-shaped cut in the printing sheet and the pressure-sensitive adhesive layer of the label sheet having a three-layer structure with the release sheet, the release sheet can be peeled off. When such a label is used, the label sheet is first passed through a printer to print the individual label portions, then peeled off from the release sheet and attached to an adherend.

By the way, in order to protect the surface of the label from moisture, scratches, dirt, etc., it may be covered with, for example, a transparent protective film. Conventionally, after attaching a label to an adherend, the protective film is peeled off from a dedicated protective film sheet which is separate from the label sheet and is attached to the surface of the attached label.

[0004]

However, the conventional protective film as described above has a problem that the alignment with respect to the label may be troublesome during the application, and that air may be trapped between the label and the wrinkle on the surface. Care must be taken and handling is inconvenient. Further, since the protective film sheet is prepared separately from the label sheet, the manufacturing cost is high.

The present invention has been made in view of the above circumstances, and provides a label sheet with a protective film, which can easily obtain a label whose surface is covered with a protective film and is inexpensive to manufacture. The purpose is.

[0006]

According to a first aspect of the present invention for solving the above-mentioned problems, a printing sheet having a printing surface printable by a printer and in which printed information can be visually recognized from the back surface is provided. And a protective layer comprising a transparent or semitransparent pressure-sensitive adhesive layer peelably formed on the side opposite to the printing surface of the printing sheet, and a transparent or semitransparent protective film laminated on the pressure-sensitive adhesive layer. A label sheet with a film, which is provided on the printing sheet so as to surround a necessary area of the printing information to be reverse printed on the printing surface of the printing sheet, and peels off a peripheral area other than the necessary area. It is characterized in that a loop-shaped cut for exposing the pressure-sensitive adhesive layer is formed.

In order to make the information printed on the printing sheet visible from the back side, the printing sheet may be transparent or translucent, or may be opaque. It may be a so-called back print film in which the ink penetrates into the printing sheet and is visible from the back side. The protective film may be colored or may be surface-treated such as matte treatment, as long as the information printed through the protective film is visible. Further, by using a material having a low ultraviolet ray transmittance, fading of the printing ink can be prevented.

According to the first aspect of the present invention, the necessary area surrounded by the loop-shaped cuts formed on the printing sheet and the other peripheral area are separated from each other by the loop-shaped cuts, and are separated from the adhesive layer. Can be peeled off. Therefore, by peeling the peripheral region from the pressure-sensitive adhesive layer, a necessary region is left on the protective film side, and eventually a label in which the pressure-sensitive adhesive layer is exposed is formed. This label can be attached to an adherend by pressing the exposed pressure-sensitive adhesive layer toward the adherend.

By the way, as described above, when the label is pasted with the adhesive layer exposed around the label on the adherend, the printing surface side of the label faces the adherend, so The back side of the sheet for use is seen through the protective film and the pressure-sensitive adhesive layer. According to the label sheet with a protective film of the present invention, since the printed information of the protective film, the pressure-sensitive adhesive layer and the printing sheet is visible from the back side, the printing information is reversed on the printing surface of the printing sheet. If it is printed, the print information can be viewed as a watermark in the proper direction from the back side of the print surface. Moreover, since the protective film is provided on the back side of the printing surface via the adhesive layer as described above, if the exposed adhesive layer is attached to the adherend, it will naturally The surface of the label is covered with the protective film.

As described above, according to the label sheet with the protective film of the present invention, reverse printing is performed on the printing sheet to remove the area other than the necessary area, and the exposed adhesive layer is directed to the adherend. By simply performing a simple operation of attaching the label, a label having a surface covered with a protective film can be obtained, which is an excellent effect. In addition, since the printing sheet also serves as a conventional release sheet, the manufacturing cost is lower than that of the conventional configuration in which the label sheet to be printed and the release sheet to be overlaid on the label sheet are manufactured separately, and the disposal sheet is discarded. Since there are few release sheets, the amount of dust is reduced, which is good for the environment.

A second aspect of the present invention is the label sheet with a protective film according to the first aspect, wherein the protective film and the pressure-sensitive adhesive layer are located outside the loop-shaped cut, and the loop-shaped cut is provided. It is characterized in that a loop-shaped surface-side cut surrounding a region larger than the region surrounded by is formed.

[0012] As described in claim 2 above, the protective film and the pressure-sensitive adhesive layer have a loop-shaped surface which is located outside the loop-shaped cut and surrounds a region larger than the region surrounded by the loop-shaped cut. By forming the side cuts, it becomes possible to obtain a plurality of labels with protective films from one label sheet. That is, after reverse printing the print information in the necessary area of the printing surface of the printing sheet, the area surrounded by the surface side cut formed in the protective film and the adhesive layer is separated from the other area and peeled from the label sheet. When trying to remove, the necessary area surrounded by the loop-shaped cut, that is, the label, is separated from the area other than the label by the loop-shaped cut and remains in the state of being laminated on the protective film side. That is, the label remains in the back surface of each peeled off protective film, and the adhesive layer is exposed in the peripheral portion of the label. Therefore, when the exposed surface of the pressure-sensitive adhesive layer of the label with a protective film is pressed against the adherend to be attached to the adherend, a label whose surface is covered with the protective film is obtained.

As described above, according to the label with a protective film of the invention of claim 2, by forming the cut on the front surface side, in addition to the effect of claim 1, a plurality of protective films can be formed from one label sheet. It is possible to obtain the effect that the labeled label can be obtained.

By the way, after the printing information is reverse printed on the printing surface of the printing sheet, the area surrounded by the cuts on the surface side formed in the protective film and the adhesive layer is peeled off from the label sheet, as described above. The necessary area of the printing sheet, that is, the label, is separated from the peripheral area by the loop-shaped cut and remains on the protective film side, whereby a label with a protective film is obtained. But,
Actually, printing may be performed across the surface cut on the printing side, and then the ink printed on the printing side of the printing sheet forms a bridge between the required area and the peripheral area. If both are combined, the loop-shaped cut may not be separated properly depending on the quality of the ink, and it may be difficult to separate the label.

Therefore, in the invention of claim 3, in the invention of claim 2, the portion of the loop-shaped cut formed in the peripheral region of the printing sheet in a direction substantially orthogonal to the main stripping direction of the peripheral region. From the vicinity of both end portions, a back surface side cut which is continuous with the looped cut and extends in a direction substantially along the stripping direction is formed.

In the label sheet having such a structure, after the printing information is reversely printed on the printing surface of the printing sheet, first, one of the peripheral area surrounded by the back side cut and a part of the loop cut connected to the back side cut is formed. Part from the adhesive layer. Since this peeling-off work can be performed along the loop-shaped cut (the bridge forming direction), the bridge can be relatively easily separated.
As a result, the bridges that are difficult to separate and that span the loop-shaped cuts formed in the direction substantially orthogonal to the main stripping direction of the peripheral region are completely separated. And then
Similarly to the above, the region surrounded by the front side cut is separated from the other regions and peeled off from the label sheet. At this time, since the ink bridge formed in the loop-shaped cut formed in the direction substantially orthogonal to the stripping direction is already completely separated as described above,
The required area of the peeling start portion, that is, the label remains on the protective film side. In addition, there are cases where the ink bridge is also laid over the loop-shaped cut formed in the direction along the stripping direction, but as described above, the bridge at the separation start portion is completely separated, and Since the separating direction is along the stripping direction of the protective film, the bridge can be separated relatively easily.
That is, the necessary area is quickly separated from the surrounding area,
It will remain on the protective film side.

As described above, according to the third aspect of the invention, it is possible to obtain the label sheet with the protective film, which can be easily peeled off even when the ink bridge is bridged in the loop-shaped cut. Produce an effect.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION <First Embodiment> A first embodiment of the present invention will be described below with reference to FIGS. The label sheet 10 of the present embodiment is applied to, for example, a notice attached to a table in a coffee shop. As shown in FIG. 1, the label sheet 10 is laminated on an A5 printing sheet 11 having a printing surface that can be printed by, for example, an inkjet printer, and a back surface side of the printing surface of the printing sheet 11. The pressure-sensitive adhesive layer 12 and the protective film 13 laminated so as to cover the pressure-sensitive adhesive layer 12 have a three-layer structure.

The printing sheet 11 is, for example, a white so-called back printing paper obtained by applying an ink jet coating (not shown) into which a transparent substrate film (not shown) made of PET can soak ink. When printed on the side opposite to the base film, the printing ink permeates and becomes visible from the back side. The thickness is, for example, about 5
It is 0 μm. The pressure-sensitive adhesive layer 12 is made of a transparent pressure-sensitive adhesive and has a thickness of about 10 μm. The adhesive layer 1
2 may be transparent to the extent that the print information displayed on the printing sheet 11 can be seen through in its thickness, and whether the adhesive itself is colored or how transparent it is. It doesn't matter. The protective film 13 is a transparent film made of PET, for example, and its thickness is about 40 μm. Although not shown, a release agent is applied between the printing sheet 11 and the pressure-sensitive adhesive layer 12.

As shown in FIGS. 1 and 2, the printing sheet 11 is formed with a loop-shaped cut 14 from the end of the printing sheet 11 to the inner peripheral edge side with a width of about 5 mm. By this loop-shaped cut 14, the label 15 portion (corresponding to the necessary area of the present invention) surrounded by the loop-shaped cut 14 and its peripheral area 16 can be separated from each other. Further, the printing sheet 11 is provided in a part of the peripheral region 16 with a dogleg-shaped notch 17 continuous from the end portion of the printing sheet 11 to the loop-shaped cut 14 as shown in FIG. .

Next, a method of using the label sheet 10 of this embodiment described above will be described. When the label sheet 10 is used, first, the print information is printed on the printing surface of the printing sheet 11 by a printer or the like in a form in which the print information is reversed. Then, the end portion of the notch 17 is pinched, and the peripheral region 16 of the printing sheet 11 is peeled off from the adhesive layer 12. As a result, the label sheet 10 has the printed label 15
The adhesive layer 12 is exposed at the periphery of the (see FIG. 3). Then, the label sheet 10 in this state is turned over so that the protective film 13 becomes the upper surface, and the exposed surface of the pressure-sensitive adhesive layer 12 on the lower surface side is placed on the table, and pressed from above and attached. (See Figure 4).

Thus, the label sheet 1 of this embodiment
According to 0, the surface is covered with the protective film 13 only by performing a simple operation of performing reverse printing on the printing sheet 11 to peel off the peripheral region 16 and attaching the exposed adhesive layer 12 to the table. It has an excellent effect of being able to obtain the broken label 15.

<Second Embodiment> The label sheet 20 of the present embodiment has a plurality of rectangular shapes as shown in FIG. 5 on the printing sheet 21 of the label sheet 20 having the same three-layer structure as the above embodiment. The loop-shaped cut 24 is formed, and the surface-side cut 28 is formed in the protective film 23 and the adhesive layer 22. This surface side cut 28
Is formed on the outer peripheral side of the loop-shaped cut 24 with a width of about 3 mm, and has a rectangular shape that is slightly larger than the loop-shaped cut 24. Such a surface-side cut 28 and a loop-shaped cut 24
Eight individual protective films 23 and labels 25 formed by are formed on the A5 size label sheet 20, for example.

When this label sheet 20 is used, reverse printing of print information is first performed by a printer or the like on the printing surface of the printing sheet 21 as in the above embodiment. Then, the label sheet 20 is turned upside down, the edge of the front surface side cut 28 is pinched, the protective film 23 and the adhesive layer 22 are partially separated from other regions in a laminated state and peeled off from the label sheet 20. At this time, the printing sheet 21 has loop-shaped cuts 2 located inside the front-side cuts 28.
4 is formed, the area of the printing sheet 21 surrounded by the loop-shaped cut 24, that is, the label 2 is formed.
5 is separated from the other peripheral regions and remains laminated on the side of the protective film 23 that is peeled off. As a result, as shown in FIG. 6, the adhesive layer 22 is exposed only on the peripheral portion of the back surface side of the protective film 23 that has been peeled off, and the label 25 portion remains. After that, as shown in FIG. 7, the exposed adhesive layer 22 is addressed to, for example, a mobile phone, and the label 25 is attached together with the protective film 23.

Thus, the label sheet 2 of this embodiment
According to 0, in addition to the same effect as the first embodiment, there is an effect that a plurality of labels with protective films can be obtained from one label sheet 20.

<Third Embodiment> In the label sheet 30 of this embodiment, a plurality of rectangular loop-shaped cuts 34 are formed in the printing sheet 31 of the label sheet 30 having the same three-layer structure as that of the above-described embodiment. With protective film 3
3 and the pressure-sensitive adhesive layer 32 are formed with front surface side cuts 38.
9 is different from the above embodiment. As shown in FIG. 8 and FIG. 9, the back surface side cut 39 spreads slightly from both ends of one short side of the label 35 (that is, the loop cut 34) toward the edge of the label sheet 30. The label 3 is formed in a straight line.
By being closed so as to be parallel to the short side of 5 (loop-shaped cut 34), a trapezoidal region 36A having the loop-shaped cut 34 as one side is formed.

When the label sheet 30 is used, after reverse printing of print information is performed on the printing surface of the printing sheet 31, first, the acute angle portion of the trapezoidal area 36A is picked, and this area 36A is looped. The label sheet 30 is peeled off along the slits 34 (see FIGS. 10 and 11). At this time, there is a case where the bridge B made of the printing ink is laid over the cut-off portion of the loop-shaped cut 34, but since this stripping work is performed along the forming direction of the bridge B, the loop-shaped cut 34 is relatively easy. 34 can be separated. Next, as in the above-described embodiment, the label sheet 30 is turned over and the end of the front side cut 38 is pinched,
The protective film 33 and the pressure-sensitive adhesive layer 32 are partially separated from other areas and peeled off from the label sheet 30 (see FIG. 1).
2 to 14). At this time, since the ink bridge B that has been hung on the short side of the loop-shaped cut 34 is already completely cut as described above, the end portion of the label 35 at the peeling start portion has a protective film. 33
Remains on the side. In some cases, the ink bridge B is also laid on the long side of the loop-shaped cut 34, and this bridge B is triggered by the already cut portion of the loop-shaped cut 34 along the stripping direction. Since the label 35 is easily cut, the label 35 is completely separated from the peripheral region 36 and remains entirely on the protective film 33 side.

Thus, the label sheet 3 of this embodiment
According to 0, in addition to the same action and effect as those of the first and second embodiments, the action and effect of obtaining a label with a protective film that is easy to peel off can be obtained.

<Other Embodiments> The present invention is not limited to the embodiments described above and illustrated in the drawings. For example, the following embodiments are also included in the technical scope of the present invention. In addition to the above, various modifications can be made without departing from the scope of the invention.

(1) In the second embodiment, the loop-shaped cut 24 and the surface-side cut 28 have the same shape with different sizes, but they do not have to have the same shape, and the label 25 may be used.
The front side cut 28 may be formed so that the pressure-sensitive adhesive layer 22 is exposed only on a part of the outer peripheral edge thereof, or the exposed width of the pressure-sensitive adhesive layer 22 may be different depending on the position.

(2) In the third embodiment described above, the back side cut 39 and the loop-shaped cut 34 form a trapezoid. However, the present invention is not limited to this. For example, a triangular shape or a simple cut may be formed. In short, any shape may be used as long as the ink bridge formed in the loop cut 34 can be separated.

[Brief description of drawings]

FIG. 1 is a partially enlarged sectional view of a label sheet according to a first embodiment of the present invention.

FIG. 2 is a perspective view of the label sheet.

FIG. 3 is a perspective view showing a state in which the peripheral region is also peeled off from the adhesive layer.

FIG. 4 is a perspective view showing a state in which labels are also attached.

FIG. 5 is a perspective view of a label sheet according to a second embodiment of the present invention.

FIG. 6 is a perspective view showing a state in which individual labels are also peeled off.

FIG. 7 is a perspective view showing a state in which a label is also attached.

FIG. 8 is a perspective view of a label sheet according to a third embodiment of the present invention.

FIG. 9 is a partially enlarged cross-sectional view taken along line AA of FIG.

FIG. 10 is a perspective view showing a process of peeling off a partial region.

FIG. 11 is a partially enlarged sectional view of FIG.

FIG. 12 is a perspective view showing a process of peeling the label with the protective film from the label sheet.

FIG. 13 is a partially enlarged sectional view of FIG.

FIG. 14 is a partially enlarged cross-sectional view of the case where the label with the protective film is peeled off from the label sheet.

[Explanation of symbols]

10, 20, 30 ... Label sheet (label sheet with protective film) 11, 21, 31 ... Printing sheet 12, 22, 32 ... Adhesive layer 13, 23, 33 ... Protective film 14 , 24, 34 ... Loop-shaped cuts 15, 25, 35 ... Labels (required areas) 16, 26, 36 ... Peripheral areas 28, 38 ... Front-side cuts 39 ... Back-side cuts

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Kenji Hirose             5-9-10 Ruyicho Town, Kasugai City, Aichi Prefecture             Gobele Co., Ltd. (72) Inventor Takao Tsubouchi             5-9-10 Ruyicho Town, Kasugai City, Aichi Prefecture             Gobele Co., Ltd. F-term (reference) 3E075 AA05 BA83 CA02 DA32 DB32                       DE23 FA04 GA02

Claims (3)

[Claims] 1. A printing sheet having a printing surface printable by a printer, on which printed information is visible from the back side, and a peelable sheet formed on the opposite side of the printing surface of the printing sheet. A label sheet with a protective film comprising a transparent or semi-transparent pressure-sensitive adhesive layer and a transparent or semi-transparent protective film laminated on the pressure-sensitive adhesive layer, which is reverse printed on the printing surface of the printing sheet. It is provided on the printing sheet so as to surround a necessary area of the information, and a loop-shaped cut for exposing the adhesive layer by peeling off a peripheral area other than the necessary area is characterized. Label sheet with protective film. 2. The protective film and the pressure-sensitive adhesive layer,
The protective film according to claim 1, wherein a loop-shaped surface-side cut that is located outside the loop-shaped cut and surrounds a region larger than a region surrounded by the loop-shaped cut is formed. Label sheet. 3. In the peripheral area of the printing sheet, from the vicinity of both ends of the loop-shaped cut portion formed in a direction substantially orthogonal to the main stripping direction of the peripheral area, to the loop-shaped cut The label sheet with a protective film according to claim 2, wherein a back surface side cut which is continuous and extends substantially along the peeling direction is formed.