JP6822830B2 - Blow container with in-mold label and in-mold label used for this - Google Patents

Description

The present invention relates to a blow container with an in-mold label that has been three-dimensionally decorated and an in-mold label used therein.

As a technique for decorating the outer surface of a blow-molded product using an in-mold label, for example, there is a prior art described in Patent Document 1.
In Patent Document 1, an in-mold label 11 having a decorative pattern, a product name, a description, etc. displayed on the front surface or the back surface of the body 4 of the container 1 is arranged on the inner wall of the blow mold 23, and the direct blow of the container 1 is performed. The in-mold label 11 is heat-sealed to the body 4 at the same time as molding.

Japanese Unexamined Patent Publication No. 2014-105031

The technique described in Patent Document 1 imparts a flat decoration to the body 4 of the container 1, but in recent years, other than the flat decoration in order to differentiate from other products. In addition, the development of technology for three-dimensional decoration is required.
However, in a configuration in which an uneven portion is simply formed on the inner wall of the mold and the in-mold label is heat-sealed onto the uneven portion formed on the surface of the body after molding to decorate the body, the body after molding is particularly suitable. When the surface of the portion has a step or a curved surface, the in-mold label does not follow the shape sufficiently, so that the in-mold label has wrinkles due to the step or the curved surface, and as a result, the decorativeness is improved. There is a problem that it is damaged.
It is also possible to add three-dimensional decoration to the molded container by applying means such as hot stamping and transfer in a later process, but with high accuracy on a stepped surface or a complicated curved surface. It was difficult to decorate.

In the present invention, in order to solve the above-mentioned problems in the prior art, the surface of the container body has steps or curved surfaces, and the in-molding which suppresses the generation of wrinkles caused by these and has excellent decorativeness. An object is to create a labeled blow container and an in-mold label used for the labeled blow container.

Among the means for solving the problem, the main means of the first invention is
It is formed on the surface of the container body made of synthetic resin in accordance with the shape of the engraved portion (15) in the engraved portion projecting with a step portion that causes a height difference between the inside and the outside of the region. In a blow container with an in-mold label in which an in-mold label having a decorative portion defined by a linear partition side is aligned and fused to form a three-dimensionally decorated decorative engraving portion. There,
Slits are formed along the partition side, the side surface of the step portion thus formed in the synthetic resin forming the container body, characterized in that the decorative sculpture part by exposing the slit is decorative, It is called.

In the main means of the first invention, since the slit formed in the in-mold label can absorb the surface change of the container body due to the step or the like, it is achieved to be deformed according to the shape of the container body. Can be.

The other means of the first invention, the main unit of the first invention, the specific in all or part of the plurality of compartments sides separating the inner and outer decorative sculptures section, together with the stepped difference portion is formed A structure is added in which a slit is formed corresponding to the remaining step portion excluding the step portion of the above.

In the above means, the slit formed in the in-mold label is formed not corresponding to all the step portions but corresponding to the remaining step portions excluding the specific step portion, whereby the in-mold label itself expands and contracts. It can be achieved that the in-mold label is fused in a state that follows the shape of the container body, regardless of the limit.

Further, another means of the first invention is obtained by adding a structure that the engraved portion has a curved surface to the above means.

With the above means, it is possible to achieve decoration on a blow container having a curved surface as well as the engraved portion having only a stepped portion.

Further, the other means of the first invention is obtained by adding a configuration that the slit is a continuous slit or an intermittent slit configured to be breakable in addition to any of the above means.

With the above means, especially in the case of an intermittent slit, the in-mold label can be reliably arranged at an appropriate position in the split mold, so that highly accurate decoration can be achieved.

Further, the other means of the first invention is the main means of the first invention.
Pressurizing all intermittent slits that are breakable configured to correspond to the stepped portion with stepped difference portion to all of the plurality of compartments sides for partitioning the inside and the outside of the decorative sculpture portion is formed is formed, and the It is the one with the composition added.

In the above means, it can be achieved that the in-mold label is fused in a state of following the shape of the container body at the positions corresponding to all the stepped portions without being affected by the expansion / contraction limit of the in-mold label itself.

Further, another means of the first invention is obtained by adding a structure that the engraved portion has a curved surface in addition to the above means.

In the above means, for example, the first-stage engraving portion is composed of only the step portion, and the second-stage engraving portion is added to the blow container having the step portion and the curved surface or having only the curved surface. The decoration can be achieved.

Moreover, among the means for solving the problem, the main means of the second invention is
A side surface of a specific step portion of an engraved portion that is heat-sealed to the outer surface of the container body and has a plurality of step portions on the outer surface that cause a height difference between the inside and the outside of the region. An in-mold label with a decorative part that gives a three-dimensional decoration to the
It is said that a continuous slit or an intermittent slit configured so as to be breakable is formed corresponding to the remaining step portion excluding a specific step portion among a plurality of step portions. ..

In the main means of the second invention, it is possible to achieve the suppression of wrinkles generated in the in-mold label that gives a three-dimensional decoration to the surface of the container body at the same time as molding the container body.

When placing the in-mold label Warikin the type in the case especially of intermittent slits, or broken the decorative portions constituting the in-mold label, to achieve an arrangement in a proper state without overlap or At the time of blow molding, the intermittent slit may be broken to achieve the function as a continuous slit.

Since the present invention has the above-described configuration, the following effects are obtained.
In the main configuration of the present invention, when a three-dimensional decoration is applied to the surface of the container body with an in-mold label at the same time as blow molding, even if the surface of the container body has a step or a curved surface, the in-mold label is used. The formation of wrinkles can be suppressed, and as a result, a blow container with an in-mold label having excellent decorativeness can be obtained.
In addition, it is possible to decorate a complicated engraved portion having a stepped surface or a curved surface, which is impossible by means such as hot stamping or transfer, with high accuracy.
In addition, the in-mold label can be used to suppress the occurrence of wrinkles caused by steps and curved surfaces.

It is a perspective view of the blow container with an in-mold label which shows 1st Example of this invention. It is a perspective view of the blow container which shows the container of 1st Example as the state which molded without using the in-mold label. The in-mold label used in the first embodiment is shown, where A is a plan view and B is a schematic cross-sectional view of A in IIIb-IIIb. It is a perspective view of the blow container with an in-mold label which shows the state which looked up from the bottom. It is a partial cross-sectional view which shows the state at the time of molding roughly. It is a perspective view which shows the blow container with an in-mold label which is 2nd Example of this invention as looking up from the bottom. The in-mold label used in the second embodiment is shown, where A is a plan view and B is a schematic cross-sectional view of A in VIIb-VIIb. It is a perspective view of the blow container with an in-mold label which shows 3rd Example of this invention. It is a perspective view of the blow container which shows the container of 3rd Example as the state which molded without using the in-mold label. The in-mold label used in the third embodiment is shown, where A is a plan view and B is a schematic cross-sectional view of Xb-Xb.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a blow container with an in-mold label showing a first embodiment of the present invention, and FIG. 2 is a perspective view of a blow container showing a state in which the container of the first embodiment is molded without using an in-mold label. FIG. 3 shows an in-mold label used in the first embodiment, A is a plan view, B is a schematic cross-sectional view of A in IIIb-IIIb, and FIG. 4 is a blow with an in-mold label showing a state of looking up from below. A perspective view of the container, FIG. 5, is a partial cross-sectional view schematically showing a state at the time of molding.

As shown in FIG. 1 or 2, the blow container as the first embodiment is formed by having a mouth tube portion 11 erected on a shoulder portion 12 continuously provided on the body portion 13. It is configured to have a bottomed tubular bottle-shaped container body 10, and such a container body 10 is formed by using, for example, an EBM (Extrusion Blow Molding) method (so-called extrusion direct blow molding method). ..
First, the container body 10 which is the base of the blow container with the in-mold label will be described using the blow container in a state of being molded without using the in-mold label of FIG.

As shown in FIG. 2, of the flat body portion 13 constituting the container main body 10, a predetermined region S is provided on the surface side to be decorated, and this region S is three-dimensionally provided. A protruding engraving portion 15 is formed. The engraving portion 15 shown in this embodiment has a first region S1 having a rectangular frame shape on the outermost side, and a second region S2 partitioned by a rectangular boundary line 17 inside the first region S1. It also has a third region S3 inside the second region S2, which is also partitioned by a rectangular boundary line 17.

The engraving portion 15 is projected from these boundary lines 17 as a starting point. More specifically, between the first region S1 and the second region S2 and between the second region S2 and the third region S3, the first region is formed along the boundary line 17 surrounding them. A plurality of height differences are generated between the area S1 and the second area S2 and between the second area S2 and the third area S3 (in the embodiment, four and two stages provided on each side of the first stage). A total of 8 stepped portions 18 are formed by 4 provided on each side of the eye. That is, the engraved portion 15 is provided with a rectangular outer frame-shaped first region S1 formed on the outside of the surface of the body portion 13, and has a rectangular outer frame shape inside the first region S1 via a step portion 18. A second region S2 projecting from the second region S2 is provided, and a third region S3 projecting from the inside of the second region S2 via a step portion 18 is provided.

Next, the in-mold label 1 for decorating the engraving portion 15 will be described.
The in-mold label 1 shown in FIG. 3 is a sheet in which a hologram layer, a colored layer, or the like formed by means such as printing or vapor deposition is laminated between a base material layer of the lowermost layer and a protective layer of the uppermost layer. It is formed as a known resin film. In FIG. 3B, the laminated structure is omitted.

As shown in FIG. 3A, the in-mold label 1 shown in this embodiment is formed as a rectangular shape that matches the shape of the engraved portion 15 on the container body 10 side, and the first decorative portion having a rectangular frame shape on the outermost side. 2a is provided, a second decorative portion 2b having a rectangular frame shape is formed inside the second decorative portion 2a, and a third decorative portion 2c having a rectangular shape is arranged inside the second decorative portion 2b. In this embodiment, the first decorative portion 2a, the second decorative portion 2b, and the third decorative portion 2c are colored with different colors, and the first region S1, the second region S2, and the third region S2 on the container body 10 side are colored. It is arranged corresponding to each of the three regions S3. The first decorative portion 2a, the second decorative portion 2b, and the third decorative portion 2c form a decorative portion 2 that decorates the engraved portion 15 on the container body 10 side.

Between the first decorative portion 2a and the second decorative portion 2b, two vertical and horizontal lines are defined by a linear section side 3 consisting of a total of four lines. Similarly, between the second decorative portion 2b and the third decorative portion 2c, two vertical and two horizontal sections are defined by a section side 3 consisting of a total of four sections. Then, as shown in FIGS. 3A and 3B, an in-mold label 1 is attached to the remaining three partition sides 3 other than the specific (upper end in FIG. 3A) partition side 3 among the plurality of partition sides 3. A continuous slit 4a is formed as an example of the slit 4 that cuts in the thick direction. In addition, in FIG. 3A and FIG. 3B, the continuous slit 4a formed along the partition side 3 is shown by a thick line for easy understanding.

Next, a blow container with an in-mold label based on the container body 10 will be described.
The blow container with an in-mold label of the first embodiment is formed by extruding a parison P made of a synthetic resin into a split mold 20 to which the in-mold label 1 is mounted and blow molding as shown in FIG. However, at this time, of the bulging parison P, the in-mold label 1 is heat-sealed in a state of being aligned with the body portion 13 of the container body 10, and is integrally fused.

Then, on the first region S1, the second region S2, and the third region S3 that form the region S of the engraving portion 15 of the container body 10 that is the base, the first decoration portion 2 that constitutes the in-mold label 1 is formed. The decorative sculpture portion 16 with three-dimensional decoration is formed by integrally fusing the decorative portion 2a, the second decorative portion 2b, and the third decorative portion 2c in a state where they are arranged respectively. ing.

Further, as shown in FIG. 1 or 2, in the blow container with the in-mold label after molding, each continuous slit 4a formed in the in-mold label 1 is located at a position corresponding to the boundary line 17 on the container body 10 side. It is formed. More specifically, each continuous slit 4a is formed corresponding to the remaining step portion 18 excluding the specific step portion 18a among the plurality of step portions 18 formed on the boundary line 17 on the container body 10 side. In the blow container with an in-mold label after molding, the in-mold label 1 is heat-sealed to the container body 10 in a state where the continuous slit 4a overlaps the step portion 18, so that the continuous slit 4a to the container body 10 It is decorated so that the synthetic resin constituting the above is exposed.

Even when the in-mold label 1 has a stepped portion 18 on the surface of the container body 10 to which the in-mold label 1 is heat-sealed, a continuous slit 4a is provided in the section side 3 of the in-mold label 1 to be heat-sealed to the stepped portion 18. By forming the in-mold label 1, the in-mold label 1 can be deformed sufficiently following the shape of the container body 10 without being affected by the expansion / contraction limit of the label itself at the time of blow molding. It is possible to suppress the occurrence of wrinkles caused by. Therefore, the decorativeness of the decorative engraving portion 16 that appears on the surface of the container body 10 can be enhanced.

FIG. 6 is a perspective view showing a blow container with an in-mold label, which is a second embodiment of the present invention, as viewed from below, FIG. 7 shows an in-mold label used in the second embodiment, and A is a plan view. B is a schematic cross-sectional view of VIIb-VIIb.
The main difference between the blow container with the in-mold label shown in the second embodiment and the first embodiment is the structure of the slit 4, and other configurations and effects are the same as those in the first embodiment. Therefore, in the following, the points different from those of the first embodiment will be mainly described.

As shown in FIG. 7, the slit 4 in the second embodiment is an intermittent slit (break line) configured to be breakable by alternately arranging slit portions and connecting portions in columns between both ends of the partition side 3. It is configured as 4b. In addition, in FIG. 7A and FIG. 7B, the intermittent slit 4b formed along the partition side 3 is shown by a thick line for easy understanding.

In the first embodiment, when the distance between both ends of the partition side 3 is long, the length dimension of the continuous slit 4a is also increased accordingly, but the in-mold label 1 having such a plurality of continuous slits 4a is used at the time of molding. When arranged at a predetermined position in the split mold 20, each adjacent decorative portion 2 (first decorative portion 2a, second decorative portion 2b or third decorative portion) separated by the continuous slit 4a It tends to be difficult to arrange with high accuracy in an appropriate state without breaking or overlapping (2c, etc., the same applies hereinafter).

Therefore, in the second embodiment, the slit 4 is formed not by the continuous slit 4a but by the breakable intermittent slit 4b, and such an intermittent slit 4b is formed by the partition side 3 corresponding to the step portion 18 excluding the specific step portion 18a. It is configured to be arranged along the longest four compartment sides).
In the configuration shown in the second embodiment, since each decorative portion 2 of the in-mold label 1 is connected via the intermittent slit 4b, at least when the in-mold label 1 is arranged in the split mold 20, each of them The decorative portion 2 can be reliably arranged in an appropriate state without breaking or overlapping.
Further, at the time of blow molding, the bulging parison P presses the in-mold label 1 against the inner surface of the split die 20, but at this time, the intermittent slit 4b breaks and becomes a continuous form, so that the same applies to the case of the continuous slit 4a. It is possible to suppress the occurrence of wrinkles caused by the stepped portion 18, and as a result, it is possible to enhance the decorativeness of the decorative engraving portion 16 that appears on the surface of the container body 10.

In the second embodiment, the case where the intermittent slits 4b are arranged along the section sides 3 (the longest four section sides) corresponding to the step portions 18 excluding the specific step portions 18a has been described. , The intermittent slits 4b may be arranged on all the partition sides 3. In this configuration, when the in-mold label 1 is set in the split mold 20 in the same manner as described above, the decorative portions 2 can be reliably arranged in an appropriate state without being broken or overlapped. Further, during blow molding, the intermittent slit 4b is broken, and the in-mold label 1 is formed between the first decorative portion 2a and the second decorative portion 2b and between the second decorative portion 2b and the third decorative portion 2c. Although the gaps are separated from each other, the first decorative portion 2a is in a heat-sealed state with respect to the first region S1 and the second decorative portion 2b is in a heat-sealed state with respect to the second region S2, so that the positions do not shift. It is possible to decorate. Further, in the case of the continuous slit 4a, it is possible to suppress the occurrence of wrinkles caused by the stepped portion 18 and, as a result, enhance the decorativeness of the decorative engraving portion 16 appearing on the surface of the container body 10. is there.

FIG. 8 is a perspective view of a blow container with an in-mold label showing a third embodiment of the present invention, and FIG. 9 is a perspective view of a blow container showing a state in which the container of the third embodiment is molded without using an in-mold label. FIG. 10 shows an in-mold label used in the third embodiment, where A is a plan view and B is a schematic cross-sectional view of Xb-Xb.

The main difference between the blow container with the in-mold label showing the third embodiment and the first and second embodiments is the shape of the engraved portion 15 of the container body 10, and the other configurations and effects are as described above. The same applies to the first embodiment. Therefore, in the following, the points different from those of the first or second embodiment will be mainly described.

In the first and second embodiments, a plurality of height differences are generated between adjacent regions S (between the first region S1 and the second region S2 and between the second region S2 and the third region S3). The engraving portion 15 composed of only the step portion 18 is decorated with the in-mold label 1, but the third embodiment is shown in FIG. 9, for example, as a case where the in-mold label is not used. The engraving portion 15 having a curved surface 19 in addition to the step portion 18 is decorated with the in-mold label 1.

In this case, as shown in FIG. 10, the in-mold label 1 is the upper and lower portions of the section side 3 for drawing between the first decorative portion 2a and the second decorative portion 2b, which changes from a flat surface to a curved surface 19. A slit 4 is not formed with the partition side 3 as a specific partition side 3a, and slits 4 (continuous slit 4a or intermittent slit 4b) are formed on the remaining left and right side partition sides 3 excluding the specific partition side 3a. It is a configuration to be done. In addition, in FIG. 10A and FIG. 10B, the continuous slit 4a formed along the partition side 3 is shown by a thick line for easy understanding.

The molded blow container with an in-mold label shown in FIG. 8 is formed by extruding a parison P made of a synthetic resin into a split mold 20 to which the in-mold label 1 shown in FIG. 10 is mounted and blow molding. (See Fig. 5).
Then, in the engraved portion 15 in the region S of the container body 10 shown as a base in FIG. 9, more specifically, on the first region S1 and the second region S2 of the region S constituting the engraved portion 15. The first decorative portion 2a and the second decorative portion 2b constituting the decorative portion 2 of the mold label 1 are integrally fused in a state where they are arranged, thereby giving a three-dimensional decoration. The engraving portion 16 is formed.

Further, as shown in FIG. 8 or 9, the slit 4 (continuous slit or intermittent slit) formed in the in-mold label 1 is specified among the plurality of boundary lines 17 on the container body 10 side (the upper end and the upper end in FIG. 9). It is formed in the stepped portion 18 formed corresponding to the remaining left and right boundary lines 17 excluding the boundary line 17a of the lower end), and in the blow container with the in-mold label after molding shown in FIG. 8, the stepped portion 18 is formed. By heat-sealing the slits 4 in an overlapping state, the synthetic resin constituting the container body 10 is exposed from the slits 4 and decorated.

Further, also in this third embodiment, the occurrence of wrinkles caused by the stepped portion 18 or the curved surface 19 can be suppressed in the same manner as described above, and as a result, the decorative engraving portion 16 that appears on the surface of the container body 10 is added. It is possible to enhance the decorativeness.

Although the configuration of the present invention and its action and effect have been described above with reference to Examples, the embodiments of the present invention are not limited to the above Examples.

For example, the number of stepped portions 18 and curved surfaces 19 forming the engraved portion 15 of the container body 10 is not particularly limited, and in the case of the engraved portion 15 having two or more stepped portions 18 or curved surfaces 19, or two or more. Even in the engraved portion 15 having a complicated shape in which the stepped portion 18 or the curved surface 19 is mixed, the position of the slit 4 formed on the partition side 3 of the in-mold label 1 is appropriately changed according to the shape of the engraved portion 15. By doing so, it is possible to apply decoration in which the formation of wrinkles is suppressed.

Further, in the first and second embodiments, as the shape of the in-mold label 1, a first decorative portion 2a having a rectangular frame shape is provided on the outermost side, and a second addition having a rectangular frame shape is provided inside the first decorative portion 2a. Although the case where the decorative portion 2b is formed and the third decorative portion 2c having a rectangular shape is further arranged inside the second decorative portion 2b and having a rectangular shape as a whole has been described, the in-mold label 1 has been described. The shape of is not limited to the above embodiment, and may be any shape such as a circular shape, an elliptical shape, or a polygonal shape.

Further, in the first and second embodiments, the first decorative portion 2a, the second decorative portion 2b, and the third decorative portion 2c provided on the in-mold label 1 are arranged so as to have different colors. Indicates a case where the first decorative portion 2a and the second decorative portion 2b provided on the in-mold label 1 have different colors in the third embodiment. Although the case where the decoration part 2 is divided into two decoration parts 2 is described by arranging the color scheme, each decoration part 2 is provided with a pattern consisting of figures, characters, etc., or by combining colors and patterns. , It may be configured to be partitioned respectively. Further, the number of the decorative portions 2 to be partitioned depends on the shape of the engraved portion 15 on the container body 10 side, and is not limited to two or three cases.

The present invention can be used in a wider range of applications in the field of blow containers to which three-dimensional decoration is given by using an in-mold label.

1: In-mold label 2: Decorative part 2a: 1st decoration part 2b: 2nd decoration part 2c: 3rd decoration part 3: Section side 3a: Specific section side 4: Slit 4a: Continuous slit 4b: Intermittent slit 10: Container body 11: Mouth tube 12: Shoulder 13: Body 14: Bottom 15: Engraving 16: Decorative engraving 17: Boundary 17a: Specific boundary 18: Step 18a: Specific Step 19: Curved surface 20: Split mold S: Area S1: First area S2: Second area S3: Third area P: Parison

Claims (7)

On the surface of the container body (10) made of synthetic resin, the engraved portion (15) is provided so as to have a stepped portion (18) that causes a height difference between the inside and the outside of the region (S) . By aligning and fusing the in-mold label (1) having the decorative portion (2) defined by the linear partition side (3) formed according to the shape of the engraved portion (15). A blow container with an in-mold label on which a three-dimensionally decorated decorative engraving part (16) is formed.
The slit along the compartment side (3) (4) is formed, the container body (10) the stepped portion thus formed in the synthetic resin forming the the side (18) exposed from said slit (4) the in-mold labeled blow container decorative engraved portion (16) is characterized in that it is decorated by. After deducting all or part of the plurality of compartments sides (3), certain of the stepped portion with stepped difference portion (18) is formed a (18a) for partitioning the inside and outside of the decorative carving unit (16) The blow container with an in-mold label according to claim 1, wherein a slit (4) is formed corresponding to the step portion (18) of the above. The blow container with an in-mold label according to claim 1 or 2, wherein the engraving portion (15) has a curved surface (19). The blow container with an in-mold label according to any one of claims 1 to 3, wherein the slit (4) is a continuous slit (4a) or an intermittent slit (4b) configured to be breakable. Breakable configured to correspond to all of the step portion (18) together with the stepped difference portion to all of the plurality of compartments sides (3) (18) is formed for partitioning the inside and the outside of the decorative carving unit (16) The blow container with an in-mold label according to claim 1, wherein the intermittent slit (4b) is formed. The blow container with an in-mold label according to claim 5, wherein the engraving portion (15) has a curved surface (19). It is heat-sealed to the outer surface of the container body (10), and is projected on the outer surface with a plurality of stepped portions (18) that cause a height difference between the inside and the outside of the region (S). An in-mold label having a decoration portion (2) that imparts a three-dimensional decoration to the side surface of a specific step portion (18a) of the engraving portion (15).
The continuous slit (4a) or the intermittent slit (4b) configured to be breakable corresponds to the remaining step portion (18) excluding the specific step portion (18a) among the plurality of step portions (18). An in-mold label characterized by being formed of