JP4769593B2 - Display seal and tire using the same - Google Patents

Description

  The present invention includes a colored layer that can display characters, figures, symbols, and other information separately, and that can function as a mark, and an adhesive layer that is formed on one surface of the colored layer. In particular, the present invention relates to a display sticker and a tire using the same, for example a pneumatic tire, and in particular during storage of the display sticker or under its application condition, The present invention proposes a technique for effectively preventing the protruding adhesive layer from sticking out from the edge portion and adhering to the surface of the seal or another member and fouling it.

For example, as a conventional display sticker that is applied to a side surface of a pneumatic tire to decorate the tire, as described in Patent Document 1, a decoration main body in the form of letters, figures, etc. with rubber or plastic The surface of the decorative body is colored, and the back side is coated with adhesive and the release paper is applied on top of it. It is assumed that the decorative body can be easily bonded under the action of an adhesive by peeling the paper and pressing the decorative body against the tire.
Japanese Utility Model Publication No. 63-185701

  However, in this prior art, since the adhesive is applied to the entire back surface of the decorative body, the adhesive is adhered while the display seal is being stored and the decorative body is applied to the tire. The agent may protrude to the outside of the decorative body, and the protruding adhesive may cause unexpected adhesion to other members of the display seal, or may contaminate the decorative body surface or other members, There is a problem that a lot of work man-hours are required for the post-treatment, and these are particularly serious in a high temperature and high humidity environment and under the action of a load.

  This invention makes it a subject to solve such a problem which a prior art has, and the place made into the objective is from the outline edge of the colored layer of the contact bonding layer laminated | stacked on a colored layer. Provided is a display seal capable of effectively preventing unintentional protrusion to the outside, and effectively removing the possibility of unexpected peeling of the display seal and contamination of other members due to an adhesive layer, and a tire using the display seal There is.

  The display seal according to the present invention can display information such as characters, symbols, figures, and the like, for example, a colored layer that can be composed of an acrylic, urethane, epoxy-modified, or other soft resin material An adhesive layer laminated on one surface of the colored layer, preferably made of a pressure-sensitive adhesive, and the adhesive layer is separated from the contour edge of the colored layer inside the region, for example, It is formed over the entire area.

  Here, “in the region separated from the contour edge of the colored layer to the inside thereof” means that when the colored layer has only the outer contour edge, it is separated from the outer contour edge to the center portion side thereof. It means a region, and when the colored layer has inner and outer contour edges due to the presence of through holes and other punched portions, it means a region separated from the respective contour edges to the inside of the colored layer.

  In this case, for example, by forming the adhesive layer concentrically with respect to the contour shape of the colored layer, the interval between the contour edge of the adhesive layer and the contour edge of the colored layer is made constant over the entire circumference.

  When the contour edge of the colored layer has a polygon or other bending point, the contour edge interval here means an interval measured at the side portion or the like, excluding the bent vertex, Further, “constant” includes an error range of ± 10% with respect to a predetermined interval.

By the way, the thickness of such an adhesive layer is made smaller than the minimum interval between the adhesive layer contour edge and the colored layer contour edge.
In addition, a colored layer can also be made into the color-coded colored layer which differentiated by changing chromatic color besides making it a monochromatic thing.

Further, a clear layer made of, for example, a printing layer or a transparent plastic film having a contour size larger than that of the colored layer is provided on the other surface of the colored layer.
Also preferably, a mount made of paper, plastic, or the like, which has been subjected to a release treatment having a contour size larger than that of the colored layer or the clear layer, is provided on the other surface of the colored layer or the surface of the clear layer.

Here, when providing a clear layer, it is much higher strength than the colored layer, constituted by a transparent lining layer made of plastic film, in this case, the transparent lining layer itself, localized thick A strength reduction portion comprising a reduction portion or an annular groove shallow portion is provided .

  Also preferably, a release paper covering the entire surface of the adhesive layer, preferably having a contour size larger than that of the adhesive layer, such as paper or a plastic film, is adhered.

  In the tire according to the present invention, any of the display seals described above is adhered to the rubber surface, for example, at a side portion of the tire.

  In the display seal according to the present invention, the adhesive layer is preferably formed in a region separated from the contour edge of the colored layer having a thickness of 5 μm or more on the inner side thereof, so that the colored layer is a clear layer, a mount, etc. Regardless of whether or not it is covered with, the adhesive layer is fluidly deformed under the influence of humidity, temperature, pressure, etc., in both the display seal during storage and the display seal in use and under peeling of the backing sheet. In some cases, it is possible to effectively prevent the colored layer from protruding outside the contour edge of the colored layer. As a result, the adhesive layer is unintentionally bonded to other members and the adhesive layer. The risk of adhesion fouling on the seal surface and other members, peeling of the display seal, and the like are sufficiently removed.

  Here, when the adhesive layer is made of, for example, an acrylic or rubber-based pressure-sensitive adhesive that is excellent in flow deformability after drying, the display seal is adhered to the uneven surface of the object to be adhered, For example, when adhering to the side portion of a pneumatic tire provided with a large number of ridges, the adhesive layer can be easily entered to the bottom of the recess, so that the display seal is adhered to the tire side portion, etc. The strength can be sufficiently increased under the large contact area between the two, and the possibility of unexpected dropout of the display seal from the tire side portion or the like can be advantageously eliminated.

  The protrusion of the adhesive layer as described above from the colored layer can be more effectively prevented when the distance between the contour edge of the adhesive layer and the contour edge of the colored layer is constant over the entire circumference. This means that the thickness of the adhesive layer is made smaller than the minimum distance between the adhesive layer contour edge and the colored layer contour edge, and at least in the vicinity of the adhesive layer contour edge, the adhesive layer may be largely fluidly deformed. However, it is more effective when it is difficult to reach the contour edge of the colored layer.

Moreover, in the display seal according to the present invention, when the colored layer is a color-coded colored layer, the information display function of characters, figures, symbols and the like can be effectively exhibited in the seal itself.
This also applies to the case where characters, figures, etc. are displayed using the colored layer itself as a laminated structure.

  Further, when a clear layer having a contour size larger than that of the colored layer, such as a printed layer or a transparent plastic film, is provided on the surface of the colored layer, the colored layer itself has a thickness of, for example, 5 μm or more. With excellent clearness, the clear layer has a clear transparency against physical external forces such as friction, pressure, and scratches that act on the colored layer. Can be protected.

  In addition, in the case of providing a release mount with a release process having a larger outline dimension on the other surface of the colored layer or the surface of the clear layer, in the display sticker as a product, Damage to the colored layer and the like can be effectively protected by the mount.

  On the other hand, in the production of the display seal, for example, a clear layer, a colored layer, an adhesive layer, and the like are sequentially laminated on the mount by, for example, screen printing, offset printing, gravure printing, and the like. The required display seal can be manufactured simply, quickly, accurately and inexpensively.

  Moreover, when producing a display seal by printing a required layer on the mount, a seal having a complicated shape and design can be freely produced, and the color-coded colored layer and the laminated structure of the print layer as described above A colored layer or the like can be formed with high accuracy.

  In addition, by making the outline size larger than that of the colored layer, this mount can function as a carrier sheet for the display sticker, and the sticking operation of the sticker can be easily performed under the grip of the mount. In addition, it is possible to simplify the removal and removal of the mount after the pasting operation is completed.

  By the way, when the clear layer is composed of a transparent lining layer made of a plastic film, which has a much higher strength against physical external force than the colored layer, the clear layer is more effectively protected by the colored layer. It can be demonstrated.

  And in this case, when the transparent lining layer is provided with a local strength reduction part consisting of a thin-walled area, a slit, etc., thereby making it easy to tear the transparent lining layer, etc. Even if the display seal applied to a tire or the like may be peeled off or dropped due to, for example, a decrease in the function of the adhesive layer, the display seal, and thus the transparent lining layer, By inducing tearing at the strength-reducing part, a part of the display seal can be actively left on the tire, etc. Therefore, it is possible to always and accurately perform the attachment of the seal at a predetermined position without spending a special work man-hour.

  Here, when a release paper that covers the entire surface of the adhesive layer is attached to the adhesive layer, it is possible to sufficiently remove the risk of adhesion of dust and the like to the adhesive layer, and the outline dimensions of the release paper When the adhesive layer is larger than that of the adhesive layer, it is possible to facilitate the peeling and removal of the release paper that has played a role in the operation of attaching the display seal to the object.

  Furthermore, in the tire according to the present invention, the adhesive layer of the display seal protrudes from the side edge of the colored layer under the environment of storage, transportation, use, etc. of the tire, and the display seal itself is peeled off. Etc. can be effectively prevented.

  Here, when the adhesive layer is formed of an acrylic, urethane-based, epoxy-modified, or other flexible resin material, and when the adhesive layer is configured with a pressure-sensitive adhesive, the display seal is Under the excellent adhesive force of the adhesive layer, it is possible to smoothly follow the deformation of the tire and to exhibit high resistance against the action of physical external forces such as frictional force, applied pressure, and scratching force.

  Further, the thickness of the colored layer here is preferably 5 μm or more, as described above, in order to allow the seal to continuously exhibit its original function even though there is scratching or the like.

FIG. 1 is a cross-sectional view in the thickness direction schematically showing an example of the basic structure of the present invention. In FIG. 1, reference numeral 1 denotes a mount that has been subjected to a release treatment and can be made of paper, synthetic resin, or the like. 1 and 2, respectively, are formed on one surface of the mount 1 by, for example, screen printing, and preferably have a color layer having a required color and having a single-layer structure or a laminated structure, preferably having a thickness of 5 μm or more.
Here, the colored layer 2 has a size smaller than the contour size of the mount 1, and the contour edge thereof is located inwardly from the contour edge of the mount 1 over the entire circumference.

  Further, here, the adhesive layer 3 preferably made of an adhesive is laminated on the surface on the opposite side of the colored layer 2 where necessary information can be displayed on the mount 1 side. The region where the adhesive layer 3 is formed is in a region spaced inward from the contour edge of the colored layer 2, and more preferably, the distance between the contour edge of the adhesive layer 3 and the contour edge of the colored layer 1 is constant over the entire circumference. And

The type of the pressure-sensitive adhesive here can be rubber-based, acrylic-based, silicone-based, or the like, and the form before coating can be solvent-based, hydrogen, hot-melt-based, or the like.
By the way, such a thickness t of the adhesive layer 3 is less than the minimum distance dmin between the contour edge of the adhesive layer 3 and the contour edge of the colored layer 2. This is more suitable for preventing the protrusion of the protrusion.

  Further, as shown in the figure, on one surface of the printed and laminated adhesive layer 3, a release paper 4 made of paper, a synthetic resin material, or the like covering the whole of the adhesive layer 3 is attached, for example, a polypropylene film. The outline dimension of the release paper 4 is made larger than that of the adhesive layer 3.

In the display seal thus configured, in particular, the adhesive layer 3 is formed in a region separated from the contour edge of the colored layer 2 to the inside thereof. Whether the display seal is being stored or in the applied state of the display seal, unintentional protrusion of the adhesive layer 3 from the edge of the colored layer 2 can be effectively prevented.
Further, the colored layer 2 can be effectively protected by the mount 1 that also functions as a printing substrate, and the adhesive layer 3 can be effectively protected by the release paper 4.

  For example, such a sticker for display is attached to the side surface of the tire by placing the adhesive layer 3 at a required position on the side surface of the tire while holding the backing sheet 1 of the seal from which the release paper 4 has been peeled and removed. It can be done by pressing and then peeling the backing 1 from the colored layer 2, according to which the adhesive layer 3 can be applied to the tire under the action of the selected material. The colored layer 2 can exhibit excellent durability, toughness and the like under the selection of a desired material.

  Here, the display of information such as characters, figures, symbols and the like on the colored layer 2 is performed by, for example, printing necessary information on the colored layer 2 before printing the colored layer 2 on the mount 1, 2 can be performed.

FIG. 2 is a cross-sectional view showing an embodiment of the present invention.
This is because a clear layer 5 that functions to protect the colored layer 2 is directly formed on one surface of the mount 1 by printing or the like, and the surface of the clear layer 5 is colored in a color-coded structure, for example. The layer 2 is laminated by printing or the like, and the adhesive layer 3 made of an adhesive or the like is further laminated on one surface of the colored layer 2 and the outline dimension of the clear layer 5 is made smaller than that of the mount 1. In addition, the contour dimensions of the other layers 2 and 3 are sequentially made smaller than those on the upper layer side of the figure, and the release paper 5 having a larger contour dimension is adhered to the adhesive layer 3 It is.
Here, although the color-coded colored layer 2 is formed by the two colored portions 2a and 2b, it can also be formed by three or more colored portions.

  Also in such a display sheet, since the adhesive layer 3 is formed in a region separated from the contour edge of the colored layer 2 to the inside thereof, it is possible to bring about the same effect as the previous case. Of course, in particular, the colored layer 2 can be effectively protected by the clear layer 5 in the application state of the display sheet from which the mount 1 is peeled and removed.

  Here, for example, when the clear layer 5 is a transparent lining layer made of a plastic film that is adhered to the mount 1, a relatively soft colored layer is more effective under the strength inherent to the plastic film. Can be protected.

In this case, the transparent lining layer is preferably provided with a strength reducing portion as exemplified by a plan view in FIG. 3 , for example, curved or linear slits 6b and 6c, a notch 6e, etc. In FIG. 5, a local thickness reducing portion 6a or an annular groove shallow 6d is provided. According to this, even if the display seal applied to the tire or the like may drop off, the transparent lining layer 5 is easily torn at the strength reducing portion 6 and a part of the display seal is attached to the object to be attached. Since there is a high possibility that it will remain attached as it is, a new display seal can be re-applied to the specified position as a mark, making it easy and quick to re-apply the seal. Can be done.
[Reference Example 1 ]

A 75 μm-thick polyethylene terephthalate (hereinafter referred to as “PET”) film that has been subjected to silicone release treatment in advance is used as mount 1, and the diameter is 10 mm with white ink of SG700 made by Seiko Advance on the release treatment surface. The colored layer 2 was formed by printing with a screen printer, and then the adhesive layer 3 having a diameter of 8 mm was formed on the surface of the colored layer 2 with a fine tack SPS-900LV adhesive made by Dainippon Ink & Chemicals, Inc. Were similarly printed.
Then, after leaving at room temperature for 24 hours, a release film 4 was obtained by sticking a 38 μm-thick polypropylene (hereinafter referred to as “PP”) film subjected to a release treatment to the adhesive layer 3.

  With the laminated structure as shown in FIG. 1, the adhesive layer 3 is pressed and adhered to the tire surface by hand while peeling off the release paper 4 of the display seal, and then the backing paper 1 is peeled off. And stuck to the tire.

  When such a tire was transported back and forth between Japan and Europe by sea mail, the adhesion remaining rate on the tire of the required display by the display seal was 70%.

  On the other hand, as shown in FIG. 4, a commercially available 100 μm-thick PET film coated with a pressure-sensitive adhesive was used as the base material layer 11 and the adhesive layer 12. White ink is printed by screen printing to form a colored layer 13 having a diameter of 11 mm, and then the base paper 11 and the like are removed with a straight 10 mm circular punching blade, leaving the release paper 14 adhered to the adhesive layer 12. It cut | disconnected and the remainder was removed and it was set as the comparative example seal | sticker.

  Similarly, when the tire with the seal pressed by hand was transported back and forth between Japan and Europe by sea, the base material layer 11 was a PET film having relatively high rigidity, and the adhesive layer 12 The bonding strength of the tire to the uneven surface of the tire cannot be increased so much, and it is easy to peel off and drop off, and because the seal surface is easily damaged due to the protrusion of the adhesive layer 12 described later, post-processing work is not required The residual adhesion rate of the seal was only 10%.

Moreover, in this seal, since the adhesive layer 12 has the same outline dimensions as the base material layer 11 and the adhesive layer 13, the base material layer 11 and the coloring are caused by the tire passing through the hot and humid tropical region. It protruded outside the contour edge of the layer 13, and the result was that the seal was adhered to other tires, and the periphery of the seal sticking portion including other tires was soiled.
[ Reference Example 2 ]

A PP film having a thickness of 100 μm that has been subjected to silicone release treatment is used as a mount 1, and a clear layer 5 having a diameter of 10.2 mm is formed on the treated surface by printing acrylic urethane-based clear ink with a screen printer. Next, a red and white color-coded pattern is printed on the clear layer 5 by the same printing machine to form a colored layer 2 having a diameter of 9.5 mm. Further, an adhesive is similarly applied on the colored layer 2. Printing was performed to form an adhesive layer 3 having a diameter of 9 mm.
Thereafter, in the same manner as in Reference Example 1 , release paper 4 was laminated on adhesive layer 3 to produce a display seal having the structure shown in FIG.

Together they are adhered similarly to the tire and when the display seals of Reference Example 1, under similar conditions the tire in Reference Example 1, Japan and was reciprocated between the European display sealing, The residual ratio of the required display was 95% under the colored layer protection function of the clear layer 5.

It is sectional drawing of the thickness direction which shows typically the fundamental structural example of embodiment of this invention. It is sectional drawing of the thickness direction which shows the example of another fundamental structure of embodiment of this invention typically . It is a top view which shows the example of formation of the intensity reduction part to a transparent lining layer. It is sectional drawing of the thickness direction which shows a comparative example seal | sticker.

1 Mount 2 Colored layer 2a, 2b Colored portion 3 Adhesive layer 4 Release paper 5 Clear layer 6 Strength reduced portion 6a Thickness reduced portion 6b, 6c Slit 6d Shallow groove 6e Notch t Thickness dmin Minimum spacing

Claims (6)

A display seal comprising a colored layer capable of displaying information and an adhesive layer laminated on one surface of the colored layer,
The adhesive layer is formed in a region spaced inward from the contour edge of the colored layer, and the distance between the contour edge of the adhesive layer and the contour edge of the colored layer is constant over the entire circumference,
The thickness of the adhesive layer is made smaller than the minimum distance between the adhesive layer contour edge and the colored layer contour edge,
On the other surface of the colored layer, a clear layer having a larger contour dimension than the colored layer is provided,
The clear layer is a transparent lining layer made of a plastic film,
A display seal in which the transparent lining layer itself is provided with a strength reduction portion comprising a local thickness reduction portion or an annular groove shallow portion .   The display seal according to claim 1, wherein the adhesive layer is made of an adhesive.   The display seal according to claim 1 or 2, wherein the colored layer is a color-coded colored layer.   The display sticker according to any one of claims 1 to 3, wherein the clear layer is provided with a release sheet having a contour size larger than that of the colored layer or the clear layer and subjected to a release treatment. The display seal according to any one of claims 1 to 4, wherein a release paper covering the entire surface of the adhesive layer is adhered to the adhesive layer. A tire formed by sticking the display seal according to any one of claims 1 to 5 on a rubber surface.

Images