JPH04375Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an improvement in a so-called pattern label in which a label base material having a patterned area of adhesive and a release paper are pasted together.

(Prior art) As shown in FIG. 5, adhesive pattern areas (partial adhesive areas) B, B are formed with an adhesive on the back side of the display label substrate A, for example, on both longitudinal edges, and So-called pattern labels made by laminating release paper C are widely used for various purposes.

For manufacturing and handling convenience, such patterned labels are usually formed by placing a continuous long label base material and a release paper facing each other and rolling them up into a roll D as shown in FIG. 6.

(Problems to be solved in the invention) Here, the adhesive pattern areas B, B applied on the back side of the label base material A are coated with adhesive from a coating tool such as a doctor adjusted to a predetermined area width. However, it is difficult to form a pattern with accurate dimensions, and there are disadvantages such as the adhesive overflowing beyond the adhesive width.

In particular, when the pasted label base material and release paper are rolled up onto a roll D as shown in Figure 6, the roll diameter becomes gradually uneven due to the thickness of the glue in the pattern area on both side edges. A bulging portion E occurs. Due to this bulging portion E, tension is generated in the rolled roll D toward the center in the width direction as shown by the arrow in the figure, causing wrinkles and wrinkles between the adjacent label base material and release paper. Slippage occurs, increasing the number of defective products and causing disturbances in the winding of the rolls.

In order to avoid these drawbacks, attempts have been made to use double-sided adhesive tape instead of conventional adhesives or to manufacture patterned labels using lithographic printing technology, but these methods are expensive and difficult to handle. It was not necessarily practical in this respect.

The purpose of the present invention is to solve the problems of the prior art and provide a patterned label that can be easily manufactured.

(Means for Solving the Problems) The problem with the above-mentioned prior art is that in a patterned label made by gluing together a label base material having a pattern area of adhesive and a release paper, the release paper is coated with an adhesive over the entire surface. The problem is solved by a multilayer pattern label characterized by laminating a label base material to paper through a synthetic resin film that is adhered to paper, leaving a portion corresponding to the pattern area.

Here, the synthetic resin film is applied to the release paper so that the adhesive applied to the entire surface of the release paper remains only in the portion corresponding to the pattern area. That is, the film is applied to one or both side edges in the longitudinal direction of the release paper so that the adhesive-applied portion of a predetermined width is exposed.

(Function of the invention) In the multilayer structure pattern label of the invention,
A label base material is attached to a release paper coated with adhesive on its entire surface via a synthetic resin film, and this film leaves an adhesive portion corresponding to the pattern area to be formed on the label base material. Since the adhesive is adhered to the release paper in this way, the adhesive from the above-mentioned area on the release paper side is transferred to the back side of the label base material and is applied to the predetermined pattern area necessary when using the label. is formed. In particular, in the present invention, when the label base material and the release paper are rolled up at the same time, the roll shape is slightly medium and high and has a substantially uniform diameter, so that the adhesive is applied at both ends in the width direction, unlike in the past. The roll is wound up in an orderly manner without any unreasonable tension acting on it due to the step in the radial direction that is localized in the area.

In addition, when setting the pattern area, for example, when setting a pattern area on one or both side edges in the longitudinal direction, a film whose width dimension is smaller than the release paper by the width of this area is used between the release paper and the label base material. This can be easily done by simply setting it at a predetermined position during the process and feeding it to the roll winding machine.

In addition, if the patterned area of the label base material is to have a discontinuous desired shape, it is sufficient to supply a film with this pattern cut out in advance between the release paper and the label base material when winding up the roll. .

(Examples) The present invention will be further explained below with reference to specific examples.

As shown in Figures 1 and 2, an adhesive 2 is applied over the entire surface of a silicone-treated regular release paper 1, and a transparent OPP (oriented polypropylene) film 3 with a thickness of approximately 10 μm is placed on top of the adhesive 2. It was covered.

The film 3 has a widthwise dimension L such that it covers the adhesive-coated surface of the release paper 1 while leaving adhesive-exposed areas 4, 4 having a width l along both edges in the longitudinal direction when applied, A label base material 5 made of high-quality paper was further attached to the release paper 1 with the film 3 in between. As a result, the label base material 5 and the release paper 1 are adhered to each other in the adhesive exposed areas 4, 4, and when the roll is wound up as described later, the adhesive exposed areas 4, 4 on the release paper 1 are bonded to each other. The adhesive is transferred to the opposite side edges of the label base material 5 to form adhesive pattern areas 6, 6.

In the actual manufacturing process, as shown in FIG. 3, the adhesive 2 is applied to the entire surface of the release paper 1 unwound from the roll 7 using a coating roll 8, and the adhesive 2 is passed through a dryer 9.
Next, the film 3 is set and unwound from the roll 10 at a predetermined position in the width direction of the coated surface of the release paper 1.
A label base material (high-quality paper) 5 unwound from a roll 11 via this film 3 is pasted together with a roll 12, and this is rolled up as a roll product 13 of a multilayer structure pattern label.

When the roll product 13 is wound up, there is only a slight inclination in the width direction of the roll from the center to both side edges due to the interposition of the film layer, and there is substantially no step in the roll diameter. Even if tension were to be applied due to this step, it would be generated from the center of the larger diameter toward both side edges, so the label would not wrinkle at all, and even if the roll became larger in diameter, it would be rolled up in an orderly manner. be able to.

Further, the width direction dimension of the adhesive pattern areas 6, 6 formed on the label base material 5 is determined by the width direction dimension l of the adhesive exposed areas 4, 4 at both side edges of the release paper 1. The dimension l is the film 3
The width direction dimension L of the roll 12 is predetermined and
This can be easily determined with high precision by simply aligning with respect to the release paper 1 at the start of supply. When using such a multilayer pattern label, the label is appropriately unrolled from the roll product 13, cut, and then the release paper 1 is peeled off, and the adhesive on the release paper 1 is transferred to the pattern areas 6, 6 of the label base material. You will get a pattern label in the usual format.

Note that three transparent OPP films are left on the release paper 1, but these films 3 can be peeled off from the release paper 1 as necessary and used as an over-laminate to protect the display surface of the label or for other purposes. can be used again.

As described above, in the present invention, it is possible to easily and efficiently manufacture patterned labels, for which the conventional continuous method had many troubles in winding and resulted in many defective products, by using existing equipment almost as is.

The only additional means used in the present invention is to interpose a film when bonding the release paper and the label, but the cost of this film is significantly reduced compared to the use of double-sided adhesive tape, etc. Accurate setting of the dimensions of the adhesive pattern area is thereby facilitated. Further, the film itself can be reused for various purposes such as overlamination after label use.

The present invention is not limited to the specific embodiments shown in the above embodiments, but can be modified in various ways. For example, the adhesive pattern areas 6, 6 formed on both side edges of the label base material 5 may be formed on either side edge depending on the use of the label. Furthermore, as shown in FIG. 4, when the pattern area of the label base material 5 is made into a series of discontinuous shaped portions 6A,
When supplying the film 3, a predetermined punching process may be performed in advance so that the exposed area 4A corresponding to the release paper 1 is formed.

Furthermore, the interposed film is not limited to OPP, but other synthetic resin films such as ordinary polypropylene film can be used. The thickness of the film can be varied depending on the purpose of use, but it is preferably in the range of 8 to 40 microns, particularly 8 to 20 microns.

In addition to high-quality paper, synthetic paper or synthetic resin film can be used as the label base material.
In the case of materials other than paper, it is preferable to perform a treatment such as corona discharge on the back side in order to improve the transfer of the adhesive. This also applies to the film interposed between the label base material and release paper. It is.

(Effects) As described above, the multilayer structure pattern label of the present invention is extremely easy to continuously roll up as a roll, and there is almost no risk of producing defective products due to wrinkles or the like during winding.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing the structure of the multilayer pattern label of the present invention, Fig. 2 is a cross-sectional view in the width direction thereof, Fig. 3 is a diagram of its manufacturing process, and Fig. 4 shows another structure of the pattern label. FIG. 5 and FIG. 6 are explanatory diagrams showing conventional pattern labels. 1... Release paper, 2... Adhesive, 3... Film, 4, 4A... Adhesive exposed area, 5... Label base material, 6, 6A... Adhesive pattern area.

Claims (1)

[Claims for Utility Model Registration] (1) In a pattern label made by gluing together a label base material having a pattern area of an adhesive and a release paper, the pattern is applied to the release paper 1 whose entire surface is coated with an adhesive 2. A multilayer structure pattern label characterized in that a label base material 5 is pasted together with a synthetic resin film 3 adhered to the film 3 leaving a portion 4 corresponding to a region 6. (2) The utility model registration claim 1, wherein the portion 4 corresponding to the pattern area 6 is formed along one side edge in the longitudinal direction of the release paper 1.
Multi-layer structure pattern label as described in section. (3) The utility model registration claim 1, wherein the portion 4 corresponding to the pattern area 6 is formed along both longitudinal side edges of the release paper 1.
Multi-layer structure pattern label as described in section. (4) The multilayer structure pattern label according to claim 1, wherein the portion corresponding to the pattern area 6 is formed as a mutually discontinuous shaped portion 4A along the longitudinal direction of the release paper 1. .