JP5628053B2 - Labeled container - Google Patents

Description

  The present invention relates to a labeled container.

  A labeled container is used in which a label made of a heat-shrink film on which various information such as product names and contents of contents are printed is attached to the container body.

  As described in Patent Document 1, a conventional labeled container is provided with a label in a region from immediately below a portion to which a cap of a neck portion of a container body is attached to an inside of a grounding surface at the bottom of the container body. There is something.

JP2004-250040

In the labeled container described in Patent Document 1, the edge of the label made of a heat shrink film is exposed.
For this reason, the thin edge of the label may be torn by being caught on something.

  Further, water may enter a minute gap formed between the edge of the label and the container body, which may cause fouling such as generation of mold.

  In addition, since the edge of the label is exposed to the appearance, the degree of freedom of design is lost and the aesthetic appearance may be impaired.

  An object of the present invention is to improve the aesthetic appearance of a container in a labeled container by preventing the end of the label from being exposed with a simple configuration.

  The invention of claim 1 is a container having a container main body and a label made of a heat-shrinkable film placed on the container main body, and the end of the label is sandwiched between bending inversion parts pushed into the container main body. It is a labeled container provided with the label fastening part to hold | maintain.

  According to the present invention, in a container with a label, the end of the label is arranged on the container body, and the aesthetic appearance of the container can be improved.

FIG. 1 is a schematic view showing a state of a labeled container before the label is sandwiched. FIG. 2 is a schematic view showing a state after the label of the labeled container is sandwiched. FIG. 3 is a bottom view of the labeled container. FIG. 4 is an enlarged cross-sectional view showing a state before and after pushing the neck of the labeled container. FIG. 5 is an enlarged cross-sectional view showing the pushed-in state of the bottom of the labeled container.

  The labeled container 10 shown in FIG. 1 is used by screwing a screw cap (not shown) onto the container main body 20, and heats the region reaching the neck 21, shoulder 22, trunk 23, and bottom 24 of the container main body 20. It has a label 50 made of a shrink film.

  The container body 20 is made of a resin blow molded body. As a resin constituting the container body 20, it is necessary to facilitate elastic indentation deformation of a neck portion 21 and a bottom portion 24 described later, such as PP, HDPE, PET, EVOH (so-called ethylene-vinyl acetate copolymer). Various resins can be adopted, and these various resins may be multilayered. The thickness of the container body 20 is preferably about 300 μm to 2000 μm from the viewpoint of inversion and maintenance described later.

  As shown in FIGS. 1 and 2, the container body 20 includes an opening 20 </ b> A for injecting and / or discharging contents at the upper end of the neck 21.

  In the container main body 20, a small-diameter cylindrical neck portion 21 is connected to a large-diameter cylindrical trunk portion 23 via a shoulder portion 22. When the neck portion 21 has a circular cross section and the body portion 23 has an elliptical cross section, the shoulder portion 22 has a different inclination at each portion around the central axis.

  The label 50 is made of a heat-shrink film, and has a cylindrical shape by, for example, printing the product name on the surface and then bonding both side edges with a solvent. As the heat-shrinkable film, there are known a directional heat-shrinkable film that shrinks in either direction when heated, and an anisotropic heat-shrinkable film that shrinks only in one direction. It is preferable to use an anisotropic heat shrink film that shrinks only in the radial direction of the label 50.

  In the labeled container 10, a tubular label 50 is placed over substantially the entire neck 21 to bottom 24 of the container body 20, and the label 50 is heated and thermally contracted to cause neck 21 to bottom 24 of the container body 20. The upper end 51 and the lower end 52 of the label 50 are fixed at the neck 21 and the bottom 24 of the container body 20 as follows.

(A) Structure for fixing the upper end 51 of the label 50 to the neck portion 21 of the container body 20 (FIG. 4)
As shown in FIG. 4, the neck portion 21 of the container main body 20 is connected to the trunk portion 23 via a shoulder portion 22, and has an inclined portion 31 that is reduced in diameter and substantially inclined with respect to the shoulder portion 22 and the trunk portion 23. A neck base portion 32 connected to the portion 31, and a cap attachment portion 33 provided on the neck base portion 32. The neck base portion 32 has a flange portion 32F having a diameter larger than that of the cap attachment portion 33, and an intersection portion between the inclined portion 31 and the flange portion 32F is an annular groove portion 32A. The neck base portion 32 and the cap attachment portion 33 have higher rigidity than the inclined portion 31.

  In this embodiment, the inclined portion 31 is formed by connecting a surface 31A near the shoulder 22 and a surface 31B near the neck base 32 in a U-shape in a cross-sectional view. An annular groove portion 32A is formed between the surface 31B of the inclined portion 31 and the lower surface of the flange portion 32F of the neck base portion 32. Moreover, the cap attaching part 33 consists of an external thread part. However, the cap mounting portion 33 may be an annular locking portion for a driving cap.

The upper end 51 of the label 50 is fixed to the neck portion 21 of the container body 20 by the following procedure.
(1) When the cylindrical label 50 is put on the neck portion 21 to the bottom portion 24 of the container body 20, the upper end 51 of the label 50 is put on the annular groove portion 32 </ b> A of the inclined portion 31 to the neck base portion 32 of the neck portion 21.

  (2) The label 50 is heated and thermally contracted around the outer shape of the neck portion 21 (the inclined portion 31 and the annular groove portion 32A of the neck base portion 32), the shoulder portion 22, the trunk portion 23, and the bottom portion 24 of the container body 20, and there is almost no gap. Accompany. The label 50 made of an anisotropic heat-shrink film is heat-shrinked in the radial direction, and is attached to the outer periphery including the neck portion 21 (the inclined portion 31 and the annular groove portion 32A of the neck base portion 32) of the container body 20 with almost no gap. .

  (3) The neck portion 21 (inclined portion 31 and neck base portion 32) of the container body 20 is pushed into the container body 20 to form a bending inversion portion 34, and the label fastening portion 35 provided in the bending inversion portion 34 is attached to the label fastening portion 35. The upper end 51 is sandwiched and held. The label fastening portion 35 is a portion where the outer peripheral portion of the flange portion 32F of the neck base portion 32 that has entered the bending reversal portion 34 as described above is in contact with the surface 31A of the inclined portion 31 with no gap and holds the upper end 51 therebetween. It is.

  The bending reversal portion 34 is configured such that when the sandwiching angle θ (FIG. 4) facing the outside of the surfaces 31A and 31B of the inclined portion 31 is narrowed as much as possible, the intersecting groove portion 34A between the surfaces 31A and 31B is at the upper end of the label 50. 51 will be clamped.

  (4) After the upper end 51 of the label 50 is sandwiched and held in the label fastening part 35 of the bending reversal part 34 described in (3) above, the label 50 is again heated and thermally contracted.

Therefore, according to the present Example, there exist the following effects.
(a) A label fastening portion 35 that sandwiches and holds the upper end 51 of the label 50 in the bending reversal portion 34 pushed into the inside of the neck portion 21 of the container body 20 is provided. The upper end 51 of the label 50 made of a heat-shrinkable film is sandwiched and held by the label fastening portion 35 provided in the bending reversal portion 34 of the neck portion 21 of the container body 20, and the upper end edge of the label 50 is not exposed.

For this reason, the thin upper edge of the label 50 is not caught by any object and cannot be broken.
Further, the upper end edge of the label 50 does not form a gap that allows water to enter between the container body 20 and no fouling such as mold occurs.

  Moreover, the upper end edge of the label 50 is not exposed to the appearance, and the aesthetic appearance of the container 10 is improved.

  (b) The inclined portion 31 and the neck base portion 32 provided on the neck portion 21 of the container main body 20 are pushed into the container main body 20, and the surface 31 A of the inclined portion 31 and the flange portion 32 F of the neck base portion 32 form the label fastening portion 35. To do.

  In a state where the upper end 51 of the label 50 is stably positioned in the annular groove portion 32A provided at the intersection of the inclined portion 31 and the flange portion 32F of the neck base portion 32, the inclined portion 31 and the neck base portion 32 are moved to the inside of the container body 20. By pushing in and forming the above-mentioned label fastening part 35, the upper end 51 of the label 50 is stably pinched and held.

  In the neck portion 21 of the container body 20, before the surfaces 31 </ b> A and 31 </ b> B of the inclined portion 31 are pushed into the inside of the container body 20, as shown in FIG. 4, the surface 31 </ b> A faces the shoulder 22 on the side facing the outside of the container body 20. The surface 31A and the surface 31B are formed by pushing the surface 31A and the surface 31B as small as possible and the angle b formed between the surfaces 31A and 31B facing the outside of the container body 20 as small as possible. The sandwiching angle θ of the bending reversal part 34 can be made smaller. As a result, the clamping force exerted on the upper end 51 of the label 50 by the intersecting groove portion 34A of the bending reversal portion 34 can be increased.

  The inclined portion 31 of the neck portion 21 is pushed deeply inward in the axial direction with respect to the inversion boundary portion A provided around the neck portion 21 so that the annular portion between the shoulder portion 22 and the neck base portion 32 in the container main body 20 is pushed deep inside. Therefore, the bending inversion part 34 and the label fastening part 35 formed by this pushing can be maintained stably thereafter. That is, in order to restore the inclined portion 31 of the neck portion 21 that has been once pushed inward in the axial direction of the container main body 20 so as to push it back outward in the axial direction of the container main body 20, The width of the outer edge of the neck base portion 32 from the width of the annular interval formed by the shoulder portion 22 that does not increase in diameter with a constant circumferential length, and the neck base portion 32 that does not reduce in diameter due to the presence of the highly rigid neck base portion 32 and the cap mounting portion 33. Although it is necessary to bend and deform to a small length, such a bending deformation cannot be generated in the neck portion 21.

(B) Fixing structure of the lower end 52 of the label 50 to the bottom 24 of the container body 20 (FIG. 5)
As shown in FIG. 5, the bottom portion 24 of the container body 20 includes an inclined portion 41 that is connected to the trunk portion 23 and has a diameter reduced with respect to the trunk portion 23, and a bottom plate portion 42 that is connected to the inclined portion 41. The inclined portion 41 includes an annular groove 43 at the boundary with the bottom plate portion 42.

  In the container main body 20, the inclined portion 41 and the bottom plate portion 42 constituting the bottom portion 24 protrude from the body portion 23 to the outside of the container main body 20 from the beginning of blow molding, and the bottom plate portion 42 has a pinch-off portion 42 </ b> A.

The lower end 52 of the label 50 is fixed to the bottom 24 of the container body 20 as follows.
(1) When the cylindrical label 50 is put on the neck portion 21 to the bottom portion 24 of the container body 20, around the bottom portion 24 (inclined portion 41, bottom plate portion 42) that protrudes the label 50 from the body portion 23 to the outside of the container body 20. Cover the area to reach. The covering length L in which the lower end 52 of the label 50 protrudes from the boundary portion (the above-described inversion boundary portion B) around the bottom portion 24 around the bottom portion 24 is such that the lower end 52 is an annular shape of the bottom portion 24 at the time of heat shrinkage of the label 50 described later. The length is set so as to enter the groove 43.

  (2) The label 50 is heated and thermally contracted so that there is almost no gap around the outer shape of the neck portion 21, shoulder portion 22, trunk portion 23, and bottom portion 24 (inclined portion 41, bottom plate portion 42, annular groove portion 43) of the container body 20. (Fig. 5). The label 50 made of an anisotropic heat-shrink film is heat-shrinked in the radial direction, and is adhered to the outer periphery including the bottom 24 (the inclined portion 41, the bottom plate portion 42, and the annular groove portion 43) of the container body 20 with almost no gap. . At this time, the lower end 52 of the label 50 enters the annular groove 43 of the bottom 24.

  (3) The bottom part 24 (inclined part 41, bottom plate part 42) of the container body 20 is pushed into the container body 20 to form a bending inversion part 44, and more specifically, a label fastening part provided in the bending inversion part 44. Holds the lower end 52 of the label 50 between the inclined portion 41 and the upper surface 45 of the bottom plate portion 42.

  That is, as shown in FIG. 5, the bottom portion 24 has a pinch-off portion 42A, and the rigid bottom plate portion 42 is pushed in, whereby the inclined portion 41 is elastically deformed to deform the inclined portion 41 and the bottom plate portion 42 into the container. Easily pushed into the inside of the main body 20. An inclined portion 41 that is pushed inward in the axial direction of the container main body 20 with respect to the above-described reversal boundary B provided around the bottom 24 of the container main body 20 forms a bent reversal portion 44. As a result, the label fastening portion 45 formed by the inclined portion 41 forming a part of the bending reversal portion 44 in the annular groove portion 43 together with the bottom plate portion 42 sandwiches and holds the lower end 52 of the label 50.

  In addition, the inclined portion 41 of the bottom portion 24 is pushed deeply inward in the axial direction with respect to the reversal boundary portion B defined around the bottom portion 24 so that the annular portion between the body portion 23 and the bottom plate portion 42 in the container body 20 is pushed deep inside. Therefore, the bending inversion part 44 and the label fastening part 45 formed by this pushing can be maintained stably thereafter. That is, in order to restore the inclined portion 41 of the bottom 24 once pushed inward in the axial direction of the container body 20 so as to push it back outward in the axial direction of the container body 20, the inversion boundary B of the inclined portion 41 is restored. It is necessary to bend and deform the distance from the base plate portion 42 to a length shorter than the interval between the annular portion formed by the body portion 23 that does not expand in diameter and the rigid base plate portion 42. The bending deformation cannot be caused by the weight of the acting contents.

  (4) After the lower end 52 of the label 50 is sandwiched and held in the label fastening part 45 of the bending reversal part 44 described in (3) above, the label 50 is again heated and thermally contracted.

  In the container body 20, the outer peripheral edge (position of the reversal boundary portion B) of the bending reversal portion 44 in the bottom portion 24 becomes an installation surface when the container 10 is used upright.

  According to the present embodiment, the following operational effects can be obtained.

(a) A bent reversal portion 44 that is recessed toward the inside of the container main body 20 is provided on the bottom 24 of the container main body 20, and a label fastening portion 45 that sandwiches and holds the lower end 52 of the label 50 is provided on the bending reversal portion 44. The lower end 52 of the label 50 made of a heat-shrink film is sandwiched and held by the label fastening portion 45 provided in the bending reversal portion 44 of the bottom portion 24 of the container body 20, and the lower end edge of the label 50 is not exposed.
For this reason, the thin lower end edge of the label 50 is not caught by any object and cannot be broken.

  Further, the lower end edge of the label 50 does not form a gap allowing water to enter between the container main body 20 and no fouling such as generation of mold occurs.

  Moreover, even if the inside of the bottom part 24 appears in appearance by the fall of the container 10 or the like, the lower end edge of the label 50 is not exposed to the appearance, and the aesthetic appearance of the container 10 is improved.

  (b) The bottom plate portion 42 and the inclined portion 41 provided on the bottom portion 24 of the container body 20 are pushed into the inside of the container body 20, and the axis of the container body 20 with respect to the inversion boundary B defined around the bottom portion 24 of the container body 20. When the inclined portion 41 pushed inward in the direction forms the bending reversal portion 44 together with the bottom plate portion 42, the annular groove portion 43 of the inclined portion 41 forming a part of the bending reversal portion 44 forms the label fastening portion 45. The lower end 52 of the label 50 is clamped in the annular groove 43 of the inclined portion 41 that forms the label fastening portion 45.

  (c) The container body 20 is made of a blow molded body, and the bottom plate part 42 of the bottom part 24 of the container body 20 has the pinch-off part 42A, so that the bottom plate part 42 having the pinch-off part 42A of the bottom part 24 and having high rigidity is provided. The inclined portion 41 and the bottom plate portion 42 can be easily pushed into the inside of the container body 20 by pushing and thereby elastically deforming the inclined portion 41.

  (d) In the state where the lower end 52 of the label 50 is stably positioned in the annular groove portion 43 provided at the boundary portion between the inclined portion 41 and the bottom plate portion 42, the label fastening portion 45 that is a part of the bending inversion portion 44 is provided. The lower end 52 of the label 50 is stably sandwiched and held in the annular groove 43 of the inclined portion 41 to be formed.

  (e) A label 50 is placed around the body 23 and the bottom 24 of the container body 20, and the label 50 is heated to be thermally contracted around the outer shape of the body 23 and the bottom 24 of the container body 20, By pushing the bottom portion 24 of the inside 20 into the inside of the container body 20 to form the bending inversion portion 44, the lower end 52 of the label 50 can be securely sandwiched and held in the label fastening portion 45 provided in the bending inversion portion 44.

  (f) The lower end 52 of the label 50 generated when the lower end 52 of the label 50 is sandwiched and held in the label fastening portion 45 by heating the label 50 again after being sandwiched and held by the label fastening portion 45 of the bending inversion portion 44. The pinching prevention part of the lower end 52 of the label 50 can be arranged beautifully, such as removing wrinkles around the 52.

  In order to firmly hold the lower end 52 of the label 50 by the label fastening portion 45 of the bending reversal portion 44 of the bottom portion 24, it is preferable to strongly bend and reverse the bending reversal portion 44 constituting the label fastening portion 45. (i) Decreasing the angle i (FIG. 5) formed by the inclined portion 41 with respect to the trunk portion 23, or (ii) increasing the radius of the bottom plate portion 42, or performing both (i) and (ii). preferable.

  Further, in the bottom portion 24, the inclined portion 41 is pushed and inverted to form a bent inversion portion 44 and eventually a label fastening portion 45, but the inclined portion 41 is simply inclined so as to be easily inverted. It is preferable to have a step shape rather than a shape.

  The labeled container 10 covers the entire circumference from the neck portion 21 to the bottom portion 24 of the container body 20, the upper end 51 of the label 50 is fixed to the neck portion 21 of the container body 20, and the lower end 52 of the label 50 is connected to the container 50. Fixed to the bottom 24 of the main body 20. Thereby, by applying various labels 50 with different print indications to the same container body 20, various labeled containers 10 having different appearances can be easily provided.

  According to the present invention, in a labeled container, the end of the label can be prevented from being exposed with a simple configuration, and the aesthetic appearance of the container can be improved.

DESCRIPTION OF SYMBOLS 10 Labeled container 20 Container main body 21 Neck part 23 Body part 24 Bottom part 31 Inclination part 32 Neck base part 34 Bending inversion part 35 Label fastening part 41 Inclination part 42 Bottom plate part 44 Bending inversion part 45 Label fastening part 50 Label 51 Upper end 52 Lower end

Claims (6)

A container having a container body and a label made of a heat shrink film placed on the container body,
A container with a label, comprising a label fastening portion that sandwiches and holds an end of a label in a bending inversion portion pushed into the inside of the container body. The label is put on at least the region from the neck to the trunk of the container body,
The labeled container according to claim 1, wherein a label fastening portion is provided at a bending inversion portion pushed into the inside of the container body of the neck portion. The neck portion is connected to the trunk portion, and has an inclined portion having a reduced diameter and a substantially inclined shape with respect to the trunk portion, and a neck base portion connected to the inclined portion,
The labeled container according to claim 2, wherein the inclined portion of the neck portion is pushed inward in the axial direction of the container body to the inversion boundary portion defined around the neck portion of the container body to form a bent reversal portion. The label is put on at least a region from the trunk part to the bottom part of the container body,
The labeled container according to claim 1, wherein a label fastening portion is provided at the bent inversion portion pushed into the inside of the container body at the bottom. The bottom portion has an inclined portion connected to the trunk portion and having a reduced diameter with respect to the trunk portion, and a bottom plate portion connected to the inclined portion,
The labeled container according to claim 4, wherein the inclined portion of the bottom portion is pushed inward in the axial direction of the container body with respect to the reversal boundary portion defined around the bottom portion of the container body to form a bent reversal portion.   The labeled container according to claim 5, wherein the container main body is formed of a blow molded body, and a bottom plate portion of a bottom portion of the container main body has a pinch-off portion.

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