JP2009007061A - Synthetic resin made container with label - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a synthetic resin made container with a label which maintains beauty as the whole container without generating a wrinkle on a label, while assuring decompression absorption function. <P>SOLUTION: The container with the label comprises a bottle 100 equipped with a square tube body 130 composed of two or more main walls 131 provided with a decompression absorption panel 10, 20 and corner walls 132 formed as connecting the main walls 131 and a shrink label held adhering closely on the area indicating by a sign R around the body 130 in the range of the whole height of the body 130, wherein the corner walls 132 of the bottle 100 are formed in a substantial smooth surface and the decompression absorption panels 10, 20 are provided on two places along the axial line direction O and a horizontal rib 30 is provided between the decompression absorption panels 10, 20 without crossing the adjacent corner walls 132 by recessing the main walls 131 to the filling space side. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a container body having a rectangular tube-shaped body portion including a plurality of main walls provided with a reduced pressure absorption panel and a corner wall formed so as to connect the main walls, and a body of the container body. It is related with the synthetic resin container with a label provided with the label hold | maintained closely around the part over the whole height range of a trunk | drum.

As a synthetic resin container with a label, for example, an annular circumferential groove (waist) recessed inward over the entire circumference of the body of a synthetic resin container represented by a polyethylene terephthalate resin bottle (PET bottle) Part), and a shrink label is tightly held on the body part above the waist part (for example, see Patent Document 1).
Japanese Patent No. 2736883

  In addition, such a synthetic resin container is deformed by volume change at the time of cooling when contents such as fruit juice and tea are heated and filled. By providing the panel, the deformation of the entire container is absorbed as the deformation in the reduced pressure absorption panel, and the aesthetic feeling of the entire container is maintained.

  On the other hand, there is a demand for a synthetic resin container with a label in which a shrink label is tightly held over the entire height range of the body for the purpose of improving decorativeness and shading, and enhancing information transmission functions regarding contents, etc. It is also true that there are.

  However, in such a container, since the waist portion is formed across the ridge line connecting the main wall and the corner wall, a recess is formed in the ridge line. If the shrink label is held in close contact over the entire height range of the portion, wrinkles are generated on the label in contact with the concave portion, which may adversely affect the aesthetic appearance of the entire container.

On the other hand, as another synthetic resin container, without providing a waist part in its body part, a container is provided by providing one decompression absorption panel on the main wall of this body part over a wide range of the main wall. Some have absorbed the entire deformation as a deformation in the reduced pressure absorption panel and maintained the aesthetics of the entire container (for example, see Patent Document 2).
Japanese Patent No. 2590084

  FIG. 3 is a side view illustrating a conventional synthetic resin container with a label in which the shrinkable label 1 is held in close contact with the trunk portion 230 of the conventional container having no waist portion as the container body 200.

  In such a synthetic resin container with a label, the cylindrical shrink label 1 is inserted and heated from above the container body 200, so that the shrink label 1 is closely held over the entire height range of the trunk portion 230 by heat shrinkage. The

  Since the conventional container 200 without such a waist portion is provided with one vacuum absorption panel 50 on one main wall 231, the deformation of the vacuum absorption panel 50 to absorb the volume change of the container 200. The amount will also increase.

  However, when the vacuum absorption panel 50 is provided over a wide range of the main wall 231, for example, if the amount of resin used in the container is reduced for the purpose of reducing the weight, the thickness of the container is reduced. If swelling occurs due to the effects of pressure, heat softening of the resin, weight of contents, etc., this swelling may not be restored as it is.

  If the decompression absorbing panel 50 is not restored in the bulged state as described above, the appearance of the container will be deteriorated, and even if the entire body is covered with the shrink label 1, the aesthetic appearance of the entire container 200 is impaired. It was.

The problem to be solved by the present invention is that a synthetic resin having a rectangular tube-shaped body portion including a plurality of main walls provided with a reduced pressure absorption panel and a corner wall formed so as to connect the main walls. When a container is used to decorate the label by closely holding the label over the entire height range of the barrel, wrinkles occur on the label, or the vacuum absorption panel swells and undergoes permanent deformation. Wake up and damage the aesthetics of the entire container,
The object of the present invention is to have a label that maintains the aesthetics of the entire container without causing appearance defects due to the occurrence of wrinkles on the label or the permanent expansion of the reduced pressure absorption panel. It is to provide a synthetic resin container.

  The present invention relates to a container body having a rectangular tube-shaped body portion including a plurality of main walls provided with a reduced pressure absorption panel and a corner wall formed so as to connect the main walls, and a body of the container body. In a synthetic resin container with a label provided with a label that is tightly held around the entire height range of the body part, the corner wall is formed on a substantially smooth surface, and the vacuum absorbing panel is It is provided in at least two places at intervals along the container axial direction.

  Examples of the label according to the present invention include, but are not limited to, a heat-shrinkable label typified by a shrink label, and a stretchable so-called stretch label or a sticker provided with an adhesive layer on the back surface. Labels can also be used. Moreover, as a container main body which concerns on this invention, it is possible to employ | adopt the bottle shape | molded by biaxial stretch blow molding using a preform, for example.

  Furthermore, the labeled container of the present invention is provided with a horizontal rib between the decompression absorption panels provided on the main wall so that the main wall is recessed toward the filling space without crossing the adjacent corner wall. Is preferred.

  According to the present invention, a corner wall is substantially included in a rectangular tube-shaped body portion including a plurality of main walls provided with a reduced pressure absorption panel and a corner wall formed so as to connect the main walls. By forming it on a smooth surface, no concave portion due to the waist or the like is formed on the ridge line connecting the main wall and the corner wall, so that no wrinkles are generated on the label in contact with the ridge line. That is, if the corner wall is formed on a substantially smooth surface, the generation of wrinkles when the label is held tightly around the body portion can be effectively suppressed.

  In addition, according to the present invention, since the reduced pressure absorption panel is provided in at least two places at intervals along the container axial direction, the deformation amount of the reduced pressure absorption panel can be suppressed. That is, even if the vacuum absorbing panel bulges due to the effects of pressure generated during heat filling, resin softening due to heat, weight of contents, etc., the bulging amount is small, and such bulging is not a permanent deformation without restoration. . For this reason, for example, even if the amount of resin used is reduced for the purpose of reducing the weight of the container body, the decompression absorption panel is not restored while being bulged, and the label is not deformed or wrinkles are not generated.

  Therefore, according to the present invention, it is possible to produce a synthetic resin that maintains the aesthetics of the entire container without causing appearance defects due to generation of wrinkles on the label or permanent deformation due to expansion of the vacuum absorption panel. A labeled container can be provided.

  By the way, in order to increase the strength of the container body in the radial direction of the body and improve the strength against the grip of the container body, it is preferable that the body is recessed toward the filling space and a lateral rib is provided.

  However, when the horizontal rib crosses the ridge line connecting the main wall and the corner wall, a concave portion is formed on the ridge line, and thus wrinkles may occur on the label in contact with the concave portion.

  Therefore, between the reduced pressure absorption panels provided on the main wall, without crossing the adjacent corner wall, if the main wall is recessed to the filling space side and a horizontal rib is provided, this horizontal rib becomes the main wall. No recess is formed in this ridge line across the ridge line connecting the corner walls. Thereby, the intensity | strength with respect to the grip of a container can be improved, maintaining the aesthetics as the whole container with a label.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a side view showing a container main body (hereinafter referred to as “bottle”) 100 employed in a labeled bottle according to the present invention, and FIGS. 2 (a) and 2 (b) respectively show the bottle 100 shown in FIG. It is the top view and bottom view of.

  The bottle 100 has a mouth part 110, a shoulder part 120, a body part 130, and a bottom part 140, and is integrally formed by biaxially stretching blow-molding a preform (not shown) made of PET (polyethylene terephthalate) resin. .

  The torso 130 has a wide main wall 131 gripped by the user and a narrow corner wall 132 that is a column wall of the bottle 100 formed so as to connect the main wall 131 with the same axis (hereinafter referred to as “bottle”). 2) A polygonal cross-sectional shape (substantially square cross-sectional shape) that forms a filling space for the contents is formed inside as shown in FIG.

  In more detail, the main wall 131 has a grip surface 131a whose outer surface is a substantially smooth surface and a position adjacent to the shoulder 120, and the diameter of the main wall 131 decreases toward the shoulder 120. A plurality of inclined surfaces 131b to 131d and a plurality of inclined surfaces 131e that exist at positions adjacent to the bottom portion 140 and reduce in diameter toward the bottom portion 140 are configured. Further, the inclined surfaces 131b to 131e are also substantially smooth surfaces.

  Similarly, the corner wall 132 has a grip surface 132a whose outer surface is a substantially smooth surface, and a plurality of diameter walls 132 that are present at positions adjacent to the shoulder 120 and reduce in diameter toward the shoulder 120. The inclined surface 132b includes a plurality of inclined surfaces 132e that exist at positions adjacent to the bottom portion 140 and reduce in diameter toward the bottom portion 140. Further, the inclined surfaces 132b and 132e are also substantially smooth surfaces.

  2A and 2B, only a part of the details of the main wall 131 and the corner wall 132 is shown as an example.

  The main wall 131 is provided with two decompression absorption panels 10 and 20 with a part of the main wall 131 recessed into the filling space.

  As shown in FIG. 1, the reduced pressure absorption panels 10 and 20 are respectively provided on the main wall 131 at intervals along the bottle axis O direction.

  Of the two vacuum absorption panels 10 and 20, the upper vacuum absorption panel 10 near the mouth 110 is basically composed of two stages of a first recess 11 and a second recess 12.

  More specifically, the first recess 11 is formed by recessing a part of the main wall 131 toward the filling space. Further, the first recess 11 is formed so that the deepest portion 11a has a substantially rectangular shape extending along the bottle axis O.

  On the other hand, the 2nd recessed part 12 is formed by denting the deepest part 11a of the 1st recessed part 11 to the filling space side. The second recess 12 is also formed to have a substantially rectangular shape extending along the bottle axis O.

  The second recess 12 is formed by two left and right inclined surfaces 12a and two upper and lower inclined surfaces 12b so that the ridge line L1 extending along the bottle axis O is the deepest portion of the second recess 12. ing. That is, the second recess 12 is recessed closer to the filling space than the first recess 11.

  Further, the first concave portion 11 of the present embodiment is provided with horizontal ribs 13 and 14 at the upper and lower positions of the second concave portion 12 so that the deepest portion 11a of the first concave portion 11 is recessed toward the filling space. The lateral rib 13 has a substantially inverted U-shape that opens toward the second recess 12, and the lateral rib 14 does not intersect the peripheral wall 11 b of the first recess 11, and is straight to the deepest portion 11 a of the first recess 11. It extends into a shape.

  On the other hand, the lower-pressure absorbing panel 20 on the lower side close to the bottom 140 is basically composed of two stages of a first recess 21 and a second recess 22.

  More specifically, the first recess 21 is formed by recessing a part of the main wall 131 toward the filling space. The first concave portion 21 has a substantially rectangular shape with the deepest portion 21a extending along the bottle axis O, and the lower portion is formed so as to taper toward the bottom portion 140.

  On the other hand, the 2nd recessed part 22 is formed by denting the deepest part 21a of the 1st recessed part 21 to the filling space side. The second recess 22 also has a substantially rectangular shape extending along the bottle axis O, and the lower portion is formed so as to taper toward the bottom 140.

  The second recess 22 includes two inclined surfaces 22a and 22b arranged on the left and right sides so that a ridge line L2 extending along the bottle axis O is the deepest portion of the second recess 12, and two upper and lower surfaces. An inclined surface 22c is formed. That is, the second recess 22 is also recessed closer to the filling space than the first recess 21.

  Further, the first recess 21 of the present embodiment is provided with a lateral rib 24 at the position above the second recess 22 so that the deepest portion 21a of the first recess 21 is recessed toward the filling space. The lateral rib 24 extends to the deepest portion 21 a of the first recess 11 without intersecting the peripheral wall 21 b of the first recess 21.

  That is, not only the corner wall 132 but also the main wall 131 is a substantially smooth surface around the two decompression absorption panels 10 and 20 with no recess recessed on the filling space side.

  Further, as shown in FIG. 1, the main wall 131 is recessed between the two vacuum absorbing panels 10 and 20 so as not to intersect with the corner wall 132 adjacent to the main wall 131 to the filling space side. Ribs 30 are provided.

  Moreover, the code | symbol R of FIG. 1 is an example of the area | region where the shrink label 1 is stuck-held. Due to the thermal contraction of the shrink label 1, for example, as in FIG. It is held in close contact with the portion 130.

  If the bottle 100 is a container body according to the present invention, a rectangular tube-shaped body comprising a plurality of main walls 131 provided with the reduced pressure absorption panels 10, 20 and a corner wall 132 formed so as to connect the main walls 131. Since the corner wall 132 of the portion 130 is a substantially smooth surface, no recess is formed in the ridge line L that connects the main wall 131 and the corner wall 132, so that the shrink label 1 in contact with the ridge line L is attached to the shrink label 1. No wrinkles occur. That is, if the corner wall 132 is formed in a substantially smooth surface, generation of wrinkles when the shrink label 1 is held tightly around the trunk portion 130 can be effectively suppressed.

  In addition, according to the bottle 100, the two decompression absorption panels 10 and 20 are provided at intervals along the bottle axis O direction, so that the deformation amount of each of the decompression absorption panels 10 and 20 is suppressed. That is, even if the decompression panels 10 and 20 bulge due to the effects of pressure generated during heat filling, softening of the resin due to heat, weight of the contents, etc., the bulge amount is small, and the bulge is permanent without being restored. The deformation is suppressed. For this reason, for example, even if the amount of resin used is reduced for the purpose of reducing the weight of the bottle 100, the shrink label 1 is deformed or wrinkles are generated without being restored while the decompression absorption panels 10 and 20 are expanded. There is nothing.

  Therefore, according to the bottle with a label according to the present invention, the bottle 100 as a whole without causing appearance defects due to generation of wrinkles in the shrink label 1 or expansion of the reduced pressure absorption panels 10 and 20 to cause permanent deformation. As a result, it is possible to provide a bottle with a label that maintains its aesthetic appeal.

  By the way, in order to increase the strength in the radial direction of the body portion 130 of the bottle 100 and improve the strength against the grip of the bottle 100, it is preferable that the body portion 130 is recessed toward the filling space to provide a lateral rib.

  However, when the horizontal rib crosses the ridge line L connecting the main wall 131 and the corner wall 132, a recess is formed in the bottle ridge line L, and thus wrinkles may occur in the shrink label 1 in contact with the recess. There is sex.

  Therefore, between the reduced pressure absorption panels 10 and 20 provided on the main wall 131, without crossing the adjacent corner wall 132, the main wall 131 is recessed to the filling space side and the horizontal rib 30 is provided. The horizontal rib 30 does not cross the ridge line L so that no recess is formed in the ridge line L. Thereby, the intensity | strength with respect to the grip of a bottle can be improved, maintaining the aesthetics as the whole labeled bottle.

  The above description shows preferred forms of the present invention, but various modifications can be made within the scope of the claims. For example, the trunk 130 is not formed by alternately arranging the main walls 131 and the corner walls 132, but can be formed only by the main walls 131. Further, the cross-sectional shape of the container body is not limited to an octagon, and may be other polygonal shapes. Furthermore, two or more decompression absorption panels can be provided for one main wall.

It is a side view which shows the bottle as a container main body employ | adopted as the bottle with a label according to this invention. (a), (b) is the top view and bottom view of the bottle shown in FIG. 1, respectively. It is process drawing which illustrated the process of making the conventional container a container main body, and closely_contact | adhering a shrink label to the trunk | drum.

Explanation of symbols

1 Shrink label
10 Vacuum absorption panel (mouth side)
11 First recess
11a Deepest part of first recess
12 Second recess
12a Second recess left and right side inclined surface
12b 2nd recessed part top and bottom side inclined surface
13 Horizontal rib (inverted U shape)
14 Horizontal rib (straight)
20 Vacuum absorbing panel (bottom side)
21 First recess
21a First recess deepest part
22 Second recess
22a Second recess left and right side inclined surface
22b Second recess left and right side inclined surface
22c 2nd recessed part top and bottom side inclined surface
24 Horizontal ribs (straight)
30 Horizontal rib (straight)
100 PET bottle (container body)
110 Bottle mouth
120 Bottle shoulder
130 Bottle body
131 trunk main wall
131a Grasping surface (main wall)
131b Shoulder side inclined surface (main wall)
131c Shoulder side inclined surface (main wall)
131d Shoulder side inclined surface (main wall)
131e Bottom slope (main wall)
132 Torso corner wall
132a Gripping surface (corner wall)
132b Inclined side of shoulder (corner wall)
132e Bottom side inclined surface (corner wall)
140 Bottle bottom L Bottle ridgeline L1 ridgeline (second deepest recess)
L2 ridgeline (the deepest part of the second recess)
O Bottle axis (container axis)

Claims (3)

A container body including a plurality of main walls provided with a reduced pressure absorption panel, and a rectangular tube-shaped body portion formed of corner walls formed so as to connect the main walls;
In a synthetic resin container with a label provided with a label that is tightly held over the entire height range of the body part around the body part of the container body,
Forming the corner wall into a substantially smooth surface;
The said synthetic resin container with a label characterized by the said reduced pressure absorption panel being provided in at least 2 places at intervals along the container axial direction.   2. The transverse rib is provided between the reduced pressure absorption panels provided on the main wall, and the main wall is recessed toward the filling space without intersecting with the adjacent corner wall. , Labeled synthetic resin container.   The labeled synthetic resin container according to claim 1 or 2, wherein the label is a heat-shrinkable label.

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