JP2018070241A - Blow container with in-mold label and in-mold label used for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To create a blow-molded container with an in-mold label having an uneven pattern three-dimensionally decorated on a surface, and an in-mold label used for the same.SOLUTION: In a blow container with an in-mold label, a decoration appears when a planar pattern part (2) formed on an in-mold label (1) is aligned and fused with a three-dimensional engraved part (15) formed on a container body (10). A penetration part (3) penetrating in a lamination direction is formed at a position on the planar pattern part (2) of the in-mold label (1) and corresponding to at least one or more ridge lines (16) forming an uneven pattern (15A) constituting the engraved part (15).SELECTED DRAWING: Figure 4

Description

  The present invention relates to a blow container with an in-mold label whose surface is three-dimensionally decorated and an in-mold label used for the same.

As a technique for decorating the outer surface of a blow molded product using an in-mold label, there is a prior art described in Patent Document 1, for example.
In Patent Document 1, an in-mold label 11 on which a decorative pattern, a product name, or an explanation is printed on the front or back 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. It sticks at the same time as molding.

JP 2014-105031 A

The technique described in Patent Document 1 gives a flat decoration to the body 4 of the container 1, but in recent years, other than a flat decoration in order to differentiate it from other products. In addition, there is a need for the development of technology for three-dimensional decoration.
However, with a configuration in which a concavo-convex portion is simply formed on the inner wall of the mold and a label is pasted on the concavo-convex pattern formed on the surface of the molded body, a container having excellent decorating properties and It is difficult to do.
Even if the in-mold label is formed by heat-sealing together with blow molding, depending on the shape of the concavo-convex pattern, between the in-mold label and the resin that forms the concavo-convex pattern during production, When air enters between the blow molds, an air pocket is formed on the plane that is located at the portion with the largest protruding height in one uneven pattern, and the shape of the uneven pattern is greatly deformed. There is a problem that the decorativeness is impaired.

  An object of the present invention is to create a blow-molded container with an in-mold label in which a concavo-convex pattern is three-dimensionally decorated on the surface and an in-mold label to be used for this, in order to solve the above-described problems in the prior art. To do.

Of the means for solving the above problems, the main means of the first invention is:
A blow container with an in-mold label in which a decoration is revealed by aligning and fusing a planar pattern portion formed on an in-mold label to a three-dimensional engraving portion formed on a container body,
A penetrating part that penetrates in the stacking direction is formed on the planar pattern part of the in-mold label and at a position corresponding to at least one ridge line that forms the concavo-convex pattern constituting the engraving part, It is said.

  In the main means of the first invention, the air that has entered between the in-mold label and the resin on the container body side through the through-hole formed in the in-mold label, or the inner wall of the in-mold label and the split mold It can be achieved to eliminate the air that has entered during.

Another means of the second invention is an in-mold label that is heat-sealed to the outer surface of the container body having the engraving portion,
A plane pattern portion corresponding to the concavo-convex pattern constituting the sculpture portion is provided, and a penetrating portion penetrating in the stacking direction is provided on the plane pattern portion and at a position corresponding to at least one ridge line forming the concavo-convex pattern. It is characterized by being formed.

  In the main means of the second invention, the air that has entered between the in-mold label and the resin on the container body side through the through-hole formed in the pattern of the in-mold label, or the in-mold label and the split mold It can be achieved to eliminate the air that has entered between the inner walls.

  In another configuration of the present invention, a configuration in which the penetrating portion is a slit or a small hole is added to the main means of the second invention.

  In the above means, the air that has entered between the in-mold label and the resin on the container body side through the slits or small holes formed in the pattern of the in-mold label, or the in-mold label and the inner wall of the split mold It can be achieved to eliminate air that has entered between. In particular, since the slit or small hole is easily assimilated to the ridgeline, it is possible to make it difficult to visually recognize the slit or small hole from the outside.

  Further, another means of the second invention comprises any one of the above means, comprising a hologram layer, a colored layer and a transparent protective layer sequentially formed on the substrate layer, wherein the hologram layer and the colored layer are A configuration in which it is formed in a shape matching the planar shape of a three-dimensional uneven pattern is added.

  With the above-described means, it is possible to achieve decorating properties by coloring a plurality of concave and convex patterns constituting the engraving portion of the blow container with a hologram or with various colors.

The main means of the third invention is a blow container in which any one of the above-mentioned in-mold labels is heat-sealed to a synthetic resin container main body having a three-dimensional concavo-convex pattern on the outer surface. There,
The planar pattern portion formed on the in-mold label is heat-sealed while being positioned with respect to the engraving portion, so that the three-dimensional uneven pattern and the pattern constituting the planar pattern portion are fused. It is characterized by being decorated.

  The main means of the third aspect of the present invention can provide a blow container in which a container body is decorated with a three-dimensional uneven pattern by an in-mold label.

In this invention, a three-dimensional decoration can be provided to the trunk | drum of an in-mold blow container.
In the in-mold label of the present invention, air that has entered between the in-mold label and the resin of the container body or air that has entered between the in-mold label and the inner wall of the split mold can be excluded.
Also, the engraving part is decorated with an in-mold label, so that the blow container is excellent in appearance, and in particular, the appearance of the three-dimensional uneven pattern constituting the engraving part on the container body side is in-mold label and container. It can be set as the blow container which prevented being damaged by the air pocket which remains between resin of a main body.
Furthermore, by forming the through-hole along the ridgeline, the through-hole can be made inconspicuous and the aesthetic appearance of the blow container can be improved.

It is a top view of an in-mold label as an example of the present invention. It is sectional drawing which shows the schematic structure of an in-mold label. It is a top view which shows an example of the plane pattern part on an in-mold label, A has shown the arabesque pattern, B has shown the polygonal pattern. It is a front view which shows the blow container with an in-mold label as an Example of this invention. As an example of the three-dimensional decoration, A is a perspective view showing a state decorated with the arabesque pattern of FIG. 3A, and B is a cross-sectional view taken along line aa of A. As an example of the three-dimensional decoration, A is a perspective view showing a state of being decorated with the polygonal pattern of FIG. 3B, and B is a cross-sectional view taken along line bb of A. It is sectional drawing which shows the outline of 1 process of the manufacturing method of the blow container with an in-mold label as an Example of this invention.

Embodiments of the present invention will be described below with reference to the drawings.
First, the in-mold label will be described.
FIG. 1 is a plan view of an in-mold label as an embodiment of the present invention, FIG. 2 is a cross-sectional view showing a schematic configuration of the in-mold label, and FIG. 3 is a plan view showing an example of a plane pattern portion on the in-mold label. , A shows an arabesque pattern 2a, and B shows a polygonal pattern 2c.

As shown in FIG. 1, the planar shape of the in-mold label 1 shown in the present embodiment is an inverted trapezoidal shape, and the surface thereof is configured with patterns made of various characters, symbols or figures. A planar pattern portion 2 is provided.
As shown in FIG. 2, the in-mold label 1 includes a hologram layer 1b and a colored layer 1c formed by means such as printing or vapor deposition between a lowermost substrate layer 1a and an uppermost protective layer 1d. The protective layer 1d is formed by coating a transparent resin. In addition, although a well-known adhesive layer is arrange | positioned as needed between each layer, the detail is abbreviate | omitted here.

Among a plurality of patterns constituting the planar pattern portion 2 of the in-mold label 1, for example, an arabesque pattern 2a shown in FIG. 1 is formed by printing a colored layer 1c in an arabesque pattern using yellow ink. The leaf pattern 2b is formed by printing the colored layer 1c into a leaf pattern using a red ink.
Further, for example, in the polygonal pattern 2c and the substantially base pattern 2d, the hologram layer 1b is formed in a polygonal shape or a substantially base shape. In this case, in order to make the hologram layer 1b appear on the surface side, the protective layer 1d is formed directly on the hologram layer 1b without printing the colored layer 1c on the hologram layer 1b. Or it is good also as a structure by which the colored layer 1c which consists of a transparent color is printed on the hologram layer 1b, and the protective layer 1d is formed on it. In the former case, the hologram layer 1b is exposed to the outside through the transparent protective layer 1d, and in the latter case through the transparent colored layer 1c and the protective layer 1d.

A through-hole 3 is formed in the planar pattern portion of the in-mold label 1. The through portion 3 is, for example, a slit 3a or a small hole (not shown). The through portion 3 is indicated by a thick line in FIG. 1, FIG. 3A or FIG. 3B. As will be described later, on the planar pattern portion 2 of the in-mold label 1 and on the planar pattern portion 2 of the in-mold label 1 and the container body 10 side. It is formed at a position corresponding to at least one ridge line 16 that forms a three-dimensionally decorated uneven pattern 15A by heat-sealing with the engraving portion 15. Further, the penetrating portion 3 is formed with a length dimension along the ridgeline 16 and within the length dimension of the ridgeline 16.
In addition, the penetration part 3 is a pattern in which the area of the plane contained in the uneven | corrugated pattern 15A decorated especially three-dimensionally among the patterns which comprise the plane pattern part 2 is large, and it is estimated that decorating property falls. (For example, a diamond pattern), and it is not necessarily formed in a pattern (for example, an arabesque pattern 2a or a leaf pattern 2b) that is expected to have a small plane area and is less likely to have a decorative effect. However, it does not exclude the formation.

  The sheet-like resin film is punched with a predetermined mold and cut into in-mold labels 1 having a predetermined shape (inverted trapezoidal shape in FIG. 1), but the configuration of the planar pattern portion 2 is determined. Among the plurality of ridge lines 16 that will form the concavo-convex pattern 15A after molding in the flat pattern portion 2, a plurality of positions inside the die for punching in advance according to each position on at least one ridge line 16 It is preferable to arrange the blades and needles for forming the penetrating part 3 at the point that the penetrating part 3 can be formed on each ridge line 16 simultaneously with the punching operation.

Next, a blow container using the in-mold label will be described.
4 is a front view showing a blow container as an embodiment of the present invention, FIG. 5 is an example of a three-dimensional decoration, A is a perspective view showing a state decorated with the arabesque pattern of FIG. 3A, and B is A 6 is a cross-sectional view taken along the line aa, FIG. 6 is a perspective view showing a state where A is decorated with the polygonal pattern of FIG. 3B as an example of a three-dimensional decoration, and B is a cross section taken along the line bb of A. FIG.

The blow container shown in FIG. 4 has a bottomed cylindrical bottle-shaped container body 10 formed with a mouth tube portion 11 standing on a shoulder portion 12 continuously provided on a trunk portion 13. And the in-mold label 1 are formed by using an EBM (Extrusion Blow Molding) method (so-called extrusion direct blow molding) as will be described later.
The in-mold label 1 is heat-sealed to the body portion 13. The body portion 13 which is the back side of the in-mold label 1 is provided with a plurality of concavo-convex patterns 15A configured by projecting to the front side, and the plurality of concavo-convex patterns 15A are designed. The engraving part 15 is comprised by arrange | positioning together. The planar shape of the individual concavo-convex pattern 15A is an individual pattern (the arabesque pattern 2a, leaf pattern 2b, polygonal pattern 2c, or substantially base-shaped pattern 2d) formed on the in-mold label 1 described above. Etc.), and the arrangement thereof corresponds to one to one. That is, the in-mold label 1 has an individual pattern (the arabesque pattern 2a, the leaf pattern 2b, the polygonal pattern 2c or the substantially base-shaped pattern 2d) constituting the planar pattern part 2 on the in-mold label 1 side with respect to the body part 13. Etc.) are heat-sealed in a state of being positioned with high accuracy so as to overlap each three-dimensional concavo-convex pattern 15A constituting the engraving portion 15 on the body portion 13 side. As a result, the three-dimensional uneven pattern 15A provided on the surface of the trunk portion 13 is converted into individual patterns of the in-mold label 1 (the arabesque pattern 2a, the leaf pattern 2b, the polygonal pattern 2c, the substantially base pattern 2d, etc.). ) Are three-dimensionally decorated by various hologram layers 1b and colored layers 1c. In particular, as shown in FIG. 4 or 6A, the uneven pattern 15A that is three-dimensionally decorated with the polygonal pattern 2c and the substantially base-shaped pattern 2d looks like a gemstone such as diamond. It can be a molded container. That is, the blow container of the present invention is given a three-dimensional decoration by fusing the body portion 13 and the planar pattern portion 2 provided on the in-mold label 1, thereby giving an excellent aesthetic appearance. Yes.

  As shown in FIGS. 4 to 6, the in-mold label 1 heat-sealed to the surface of the concavo-convex pattern 15A has one of a plurality of ridge lines 16 in which the penetrating portion 3 forms the concavo-convex pattern 15A in three dimensions. It arrange | positions along the above ridgeline 16. FIG. Of the engraving portion 15 on the container body 10 side, the air that tends to remain between the three-dimensional uneven pattern 15A and the in-mold label 1 or the in-mold label 1 and the inner wall 20a of the split mold 20 to be described later. Air that tends to remain between them can be removed through the through-holes 3 formed along the ridgeline 16. Therefore, it is possible to prevent the appearance of the sculpture part 15 from being damaged particularly by the effect of the air pockets remaining on the three-dimensional uneven pattern 15A.

  Further, the penetrating part 3 formed along the ridge line 16 is assimilated with the ridge line 16, and it is difficult to visually distinguish the penetrating part 3 from the ridge line 16. That is, by forming the penetrating part 3 along the ridgeline 16, the penetrating part 3 can be made inconspicuous, and as a result, the aesthetic appearance of the blow container can be improved.

Next, a method for manufacturing the blow container will be described.
FIG. 7 is a cross-sectional view showing an outline of one step of a method for manufacturing a blow container as an embodiment of the present invention. In addition, the enlarged view of FIG. 7 has shown the state after blow molding.
As shown in FIG. 7, the blow container of the present invention is manufactured using an EBM method (so-called extrusion direct blow molding method) using a pair of split molds 20 that can be divided into right and left parts. On the inner wall 20a of the split mold 20, a plurality of uneven portions 20b for forming the engraved portion 15 including the plurality of three-dimensional uneven patterns 15A are engraved.

  First, the above-mentioned in-mold label 1 is attached to the inner wall 20a of the split mold 20 on the side having the concavo-convex portion 20b in the split mold 20 (first step). In this case, for example, when the in-mold label 1 is adsorbed and fixed to the inner wall 20a by adsorbing the in-mold label 1 through the decompression intake passage 22 formed in the split mold 20, the in-mold label 1 is attached to the inner wall 20a. This is preferable because it can be attached with high accuracy.

  Next, the parison P made of synthetic resin extruded in a tube shape from the extruder 21 is inserted and sandwiched between a pair of split molds 20 divided into left and right (second step).

Subsequently, air is blown into the parison P to expand the parison P to form the inner wall 20a of the split mold 20 (see the state of the two-dot chain line in FIG. 7), and the container body 10 is molded. (Third step). In this third step, the concavo-convex portion 20b of the split mold 20 is pressed in a state where the resin of the expanded container body 10 and the in-mold label 1 are overlapped, and the parison P (container body 10) is applied to the in-mold label 1. On the other hand, it contacts and heat-seals from the base material layer 1a side. Thereby, the uneven | corrugated pattern 15A decorated in three dimensions corresponding to the shape of the uneven | corrugated | grooved part 20b is formed in the surface of the trunk | drum 13 of the container main body 10. FIG. At the same time, the hologram layer 1b and the colored layer for forming the individual patterns (the arabesque pattern 2a, the leaf blade pattern 2b, the polygonal pattern 2c, or the substantially base pattern 2d, etc.) of the in-mold label 1 on the individual concavo-convex patterns 15A. 1c is laminated.
At the same time, in the third step, the air that has entered the inside, that is, the air that has entered between the resin forming the container body 10 and the in-mold label 1, or between the in-mold label 1 and the inner wall 20 a of the split mold 20. The air that has entered the air is vented through the penetrating portion 3 formed along the ridgeline 16. Therefore, it is possible to prevent the aesthetic appearance on the appearance of the three-dimensional uneven pattern 15A constituting the engraving portion 15 from being damaged by the residual air remaining.

  Finally, the split mold 20 is opened to the left and right, the container body 10 is taken out of the mold together with a chuck member (not shown) (fourth process), and one cycle of the manufacturing process is completed. Blow containers will be produced continuously.

As mentioned above, although the structure of this invention and its effect were demonstrated along the Example, embodiment of this invention is not limited to the said Example.
For example, in the above-described embodiment, the inverted trapezoidal in-mold label 1 is shown and described. However, the planar shape of the in-mold label 1 is not limited to this, and may be other shapes.

  Moreover, although the said Example showed and demonstrated the arabesque pattern 2a, the leaf blade pattern 2b, the polygonal pattern 2c, the substantially base-shaped pattern 2d, etc. as a pattern which comprises the plane pattern part 2, the plane pattern part 2 is comprised. The pattern may have other shapes.

  Moreover, in the said Example, although the colored layer 1c and the hologram layer 1d were shown and demonstrated as a means to decorate, the decorating means of this invention is not restricted to these, The uneven | corrugated pattern 15A which comprises the engraving part 16, and As long as it combines and gives the decoration excellent, the structure decorated by other means (for example, a vapor deposition layer, a pearl layer, etc.) may be sufficient.

  Application development in the field of blow containers to which a three-dimensional pattern is applied using the in-mold label of the present invention can be achieved in a wider area.

1: In-mold label 1a: Base material layer 1b: Hologram layer 1c: Colored layer 1d: Protective layer 2: Plane pattern portion 2a: Arabesque pattern 2b: Leaf blade pattern 2c: Polygonal pattern 2d: Substantially base pattern 3: Penetrating Part 3a: Slit (penetrating part)
3b: Small hole (penetrating part)
DESCRIPTION OF SYMBOLS 10: Container main body 11: Mouth part 12: Shoulder part 13: Body part 14: Bottom part 15: Engraving part 15A: Concavity and convexity pattern 16: Ridge line 20: Split mold 20a: Inner wall 20b: Concavity part P: Parison

Claims (5)

The three-dimensional sculpture part (15) formed on the container body (10) is aligned with the planar pattern part (2) formed on the in-mold label (1), and the decoration appears by fusing. A blow container with an in-mold label comprising:
Lamination is performed on the planar pattern portion (2) of the in-mold label (1) and at a position corresponding to at least one ridge line (16) forming the concavo-convex pattern (15A) constituting the engraving portion (15). A blow container with an in-mold label, wherein a through portion (3) penetrating in a direction is formed. An in-mold label that is heat-sealed to the outer surface of a container body (10) having a sculpture part (15),
A flat pattern portion (2) corresponding to the concave / convex pattern (15A) constituting the engraving portion (15) is provided, and at least one of forming the concave / convex pattern (15A) on the flat pattern portion (2). An in-mold label, wherein a penetrating portion (3) penetrating in the stacking direction is formed at a position corresponding to the ridge line (16).   The in-mold label according to claim 2, wherein the penetrating part (3) is a slit (3a) or a small hole (3b).   The hologram layer (1b), the colored layer (1c), and the transparent protective layer (1d) are sequentially formed on the base material layer (1a), and the hologram layer (1b) and the colored layer ( The in-mold label according to claim 2 or 3, wherein 1c) is formed in a shape matching the planar shape of the three-dimensional uneven pattern (15A). A synthetic resin container body (10), wherein the in-mold label (1) according to any one of claims 2 to 4 has an engraving portion (15) made of a three-dimensional uneven pattern (15A) on the outer surface. A blow container thermally fused to
The three-dimensional concavo-convex pattern (15A) is obtained by heat-sealing the planar pattern portion (2) formed on the in-mold label (1) while being positioned with respect to the engraving portion (15). The blow container is characterized in that it is decorated in a state where the pattern constituting the flat pattern portion (2) is fused.

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