JP5610291B2 - Labeled synthetic resin container - Google Patents

Description

  The present invention relates to a labeled synthetic resin container that prevents deterioration of the appearance of the entire container so that the influence does not affect the label even if the container body is deformed by decompression.

  Synthetic resin containers are widely used as containers for storing liquid products such as cosmetics, hair styling products, shampoos, rinses, body soaps, kitchen detergents, liquid garment detergents, softeners, tippers or eye drops. There are various types of containers, such as a circular shape (round shape), a square shape, or a polygonal shape, with a flat cross section.

  Such a synthetic resin container generally includes a container body and a cap formed by a blow molding method, and a label printed with product information such as a product name and a cautionary note is bonded to the main body wall surface of the container body. Sold in state.

  By the way, in a synthetic resin container, the above-mentioned liquid product is heated and filled in the container body, and after the cap is closed, the container is stored at room temperature or low temperature. At this time, the sealed container body is depressurized. Accordingly, the container body may be partially depressed and deformed.

  Such depression deformation is particularly likely to occur on the main body wall of the container body to which the label is attached, and the label also collapses and deforms together with the main body wall. And the product information printed on the label is difficult to see.

  Therefore, for such a problem, when the pressure in the bottle main body is lowered, the resin is made such that the side opposite to the front side of the body part to which the label is bonded, that is, the back side of the body part is depressed. A bottle container has been proposed (see, for example, Patent Document 1).

  However, since the invention described in Patent Document 1 is intended for a so-called round container composed of a body having a substantially circular cross section, it functions effectively for a round container. In other containers, for example, a rectangular container having a pair of opposing main body wall portions, the label is also depressed and deformed together with the main body wall portions during decompression.

  Further, in a conventional synthetic resin container, a reduced pressure absorption panel that prevents the occurrence of depression deformation due to reduced pressure is provided, or durability is improved by reducing pressure by devising dimensions and the like (for example, patents) Reference 2).

  However, the invention described in Patent Document 2 targets a container having a specific shape, and is difficult to apply to a container having a general shape.

JP 2009-132436 A JP 2005-178822 A

  The present invention can be applied to a container having a simple configuration and a wide general shape so as to solve the problems in the prior art described above, and while allowing a depression deformation of the container body due to decompression to some extent, Labeled synthetic resin container that prevents the influence of depression deformation from affecting the label, prevents deterioration of the appearance of the entire container, and reliably provides the consumer with product information printed on the label The challenge is to create

Of the means for solving the above problems, the main configuration of the present invention is as follows.
In a bottomed cylindrical synthetic resin container having at least a main body wall portion provided with a deforming portion that deforms in accordance with the reduced pressure in the container, and a label that adheres to the outer surface of the main body wall portion and covers the deforming portion ,
Between the main body wall and the label, an adhesive layer is provided to adhere between them, and a non-adhesive area consisting of an air layer is arranged at the center of the area surrounded by the adhesive layer. When the inside is depressurized, it is characterized by being provided with ventilation means for inducing outside air from the direction perpendicular to the label into the air layer and inducing depression deformation in the deformation part,
It is said.

  In the synthetic resin container having the above structure, when the inside of the container is depressurized, the deformed portion provided in the main body wall portion to which the label is adhered starts to be deformed. At this time, air outside the container (outside air) is applied to the label. The air flows into the air layer provided between the label and the main body wall through the provided ventilation means so as to face the deformed portion, and is guided so that the depressed deformation in the deformed portion proceeds smoothly. At this time, since the negative pressure of the air layer is prevented, the label does not collapse together with the deformation of the deformed portion.

  A specific configuration of the present invention is that in the invention described in claim 1, the ventilation means is a through hole formed in the label.

  In the above configuration, the outside air is directly guided to the air layer through the through hole communicating between the outside of the container and the air layer.

  According to another aspect of the present invention, in the first aspect of the present invention, the ventilation means is a label itself formed with a film having both waterproofness and air permeability as a base member. .

  In the above configuration, air is allowed to pass through, but by using a film having the property of blocking the passage of water, only air is guided to the air layer when the deformed portion is depressed.

  According to another aspect of the present invention, in the invention according to any one of the above claims, the label is bonded to a pair of opposing main body wall portions.

  In the above configuration, the label is adhered to both the front wall and the rear wall constituting the main body wall of the container, so that the label adhered to the front wall conceals the depression deformation on the front wall and adheres to the rear wall. The labeled label conceals the depression deformation on the back wall.

Since the present invention has the above-described configuration, the following effects can be obtained.
In the main configuration of the present invention, only the deformed portion on the container side can be partially deformed without causing the label to be depressed and deformed during decompression. In other words, even if the deformed portion of the container is depressed and deformed, the label adhered to cover the main body wall including the deformed portion hides the deformation. Can not be. As a result, the appearance of the container can be maintained and the merchandise value can be prevented from deteriorating, and the merchandise information printed on the label can be prevented from being difficult to see, and the merchandise information can be reliably confirmed to consumers. Can be presented.

  In addition, in the configuration in which the ventilation means is a through-hole formed in the label, since the outside air can directly flow into the ventilation layer, the air can be used particularly in an environment where the ambient temperature is likely to change greatly. The negative pressure of the layer can be prevented and the deformation of the label can be kept small.

  In addition, in the configuration in which the labels are bonded to a pair of opposing main body wall parts, each label not only hides the depression deformation on the front wall, but also the depression deformation on the back wall. Since the container can be displayed with the front side facing, the merchandise value can be prevented from being lowered not only when the container is displayed with the back side facing. Moreover, it can prevent that the merchandise information printed on the label becomes difficult to see about the label adhere | attached on any surface.

It is a front view which shows the synthetic resin container with a label of this invention. It is a side view of the synthetic resin container with a label shown in FIG. It is sectional drawing in the III-III line of FIG. FIG. 4 is an enlarged cross-sectional view corresponding to line IV-IV in FIG. 1 as a first embodiment of the ventilation means, where A indicates a state before decompression and B indicates a state during decompression. FIG. 5 is an enlarged sectional view similar to FIG. 4 as a second embodiment of the ventilation means.

Embodiments of the present invention will be described below with reference to the drawings.
1 is a front view showing a labeled synthetic resin container according to the present invention, FIG. 2 is a side view of the labeled synthetic resin container shown in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line III-III in FIG. It is. In FIG. 2, the deformation of the deformed portion due to the decompression is indicated by a two-dot chain line.

  The labeled synthetic resin container according to the present invention has a container body 1 formed of, for example, polyethylene (PE), polypropylene (PP), polystyrene (PS) or the like using a blow molding method or the like. The container main body 1 has a bottomed cylindrical shape by a main body wall portion 2 composed of a pair of a front wall 2A and a back wall 2B, side walls 3 and 3 provided between the front wall 2A and the back wall 2B, and a bottom portion 4. Is formed. A mouth tube portion 5 is formed in the upper portion of the container body 1, and a nozzle head 7 is attached to the tip of the mouth tube portion 5 in this embodiment.

  In this labeled synthetic resin container, a pump having a stem (not shown) is provided inside the container body 1, and the tip of the stem is connected to the base of the nozzle head 7. When the nozzle head 7 is pushed down with one hand, the pump in the container main body 1 draws up the internal solution through the stem, and the internal solution is poured into the other hand from the spout 7 a provided at the tip of the nozzle head 7.

  The front wall 2A and the back wall 2B constituting the main body wall 2 are provided with a deformed portion 2a having an elliptical shape at the center, which is the portion having the weakest mechanical strength. The deformed portion 2a is a portion that is more likely to be depressed and deformed than the other portions other than the deformed portion 2a during decompression. For example, it can also be formed by forming only a portion corresponding to the deformed portion 2a thinner than other portions.

  As shown in FIG. 1, a rectangular label 8 is attached to the front wall 2A and the back wall 2B constituting the main body wall portion 2 so as to cover the deformation portion 2a. This label 8 is printed with product information such as product name, ingredients, efficacy, date of manufacture or handling precautions.

  An elliptical non-adhesive region 6B is provided at the center of the back side of the label 8 (the side facing the main body wall 2), and an adhesive region 6A composed of the adhesive layer 10 is provided around the non-adhesive region 6B. It has been. In FIG. 1, the adhesive layer 10 and the adhesive region 6A are indicated by hatching.

  The label 8 is firmly bonded by adhering the adhesive layer 10 provided in the adhesive region 6A to the outer surface of the main body wall 2 excluding the deformable portion 2a in a state where the non-adhesive region 6B and the deformable portion 2a are overlapped. It is fixed. And the elliptical air layer 11 is provided in the clearance gap which the non-bonding area | region 6B and the deformation | transformation part 2a oppose.

  As will be described below, the label 8 is provided with venting means 9 for communicating between the outside of the container body 1 and the air layer 11. The ventilation means 9 has a function of flowing outside air (air) into the air layer 11 and a function of discharging air accumulated in the air layer 11 to the outside of the air layer 11. Below, the specific Example of such a ventilation means 9 is described. In the following description, the front wall 2A side will be mainly described, but the same can be applied to the back wall 2B.

4 is an enlarged cross-sectional view corresponding to the line IV-IV in FIG. 1 as a first embodiment of the ventilation means. A shows a state before decompression, and B shows a state during decompression.
As shown in FIG. 4A, the non-adhesive region 6B is provided with a through hole 9a that vertically penetrates between the front surface and the back surface of the label 8, and this through hole 9a serves as the ventilation means 9 in the first embodiment. Is configured. There is no restriction | limiting in particular about the number of the through-holes 9a, The structure of only one may be sufficient and the structure provided plurally may be sufficient. As shown in FIG. 4B, when the inside of the container main body 1 reaches a reduced pressure state, the central deformation portion 2a, which is the weakest mechanical strength portion, of the front wall 2A constituting the main body wall portion 2 is first depressed and deformed. To do.

  When the deformed portion 2a of the main body wall portion 2 is depressed and deformed due to the decompression in the container main body 1, the external air a flows into the air layer 11 through the through hole 9a. Thereby, the deformation | transformation of the deformation | transformation part 2a can be induced | guided | derived so that it may advance smoothly, and the deformation | transformation of the container main body 1 can be stopped to the local depression deformation of the deformation | transformation part 2a. At the same time, since the negative pressure in the air layer 11 is prevented, the label 8 that is pulled by the deformation of the deformable portion 2a and is bonded to the main body wall portion 2 does not collapse together.

  By the way, although there is no restriction | limiting in particular about the diameter dimension of the through-hole 9a, If a diameter dimension is too large, water etc. may enter into the air layer 11 through the through-hole 9a at the time of use. Therefore, an embodiment that can prevent the ingress of water will be described below.

FIG. 5 is an enlarged cross-sectional view corresponding to the line IV-IV in FIG. 1 as a second embodiment of the ventilation means. A shows a state before decompression and B shows a state during decompression.
In the second embodiment, the label 8 is formed by printing a product information on the base substrate using a film through which the air a passes but not the water w as a base substrate. It functions as the ventilation means 9 having air permeability and waterproofness. The base substrate is formed of, for example, a porous film having a large number of micropores, and the label 8 can be formed by laminating the base substrate and another substrate as necessary.

  As shown in FIG. 5B, when the deformed portion 2 a of the main body wall portion 2 is depressed and deformed due to the decompression in the container main body 1, the external air a is a large number of fine base materials constituting the label 8 that is the ventilation means 9. It flows into the air layer 11 through the holes. As a result, the deformation of the deformable portion 2a is further guided so as to proceed smoothly, the deformation of the container body 1 is restricted to the local concavity of the deformable portion 2a, and the inside of the air layer 11 is maintained in a positive pressure state. Therefore, the label 8 bonded to the main body wall 2 is not pulled and deformed together by being pulled by the deformed deformation of the deformable portion 2a. Further, since the label 8 is waterproof, water can be prevented from entering the air layer 11.

  In the first embodiment shown in FIG. 4 and the second embodiment shown in FIG. 5, the depression deformation of the deformable portion 2 a of the container main body 1 can be covered with the label 8 bonded to the main body wall portion 2. That is, even if the deformed portion 2a of the container body 1 is depressed and deformed, the influence of the depressed deformation of the deformed portion 2a appears on the label 8 in appearance by concealing the depressed deformation with the label 8 covering the deformed portion 2a. Can be prevented.

  For this reason, the appearance of the overall appearance of the synthetic resin container can be maintained, and a reduction in commercial value can be prevented. Further, since the label 8 itself is difficult to be deformed, the product information printed on the label 8 can be easily viewed.

  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 first embodiment and the second embodiment described above, the label 8 is illustrated and described as being bonded to the front wall 2A constituting the main body wall portion 2 via the adhesive layer 10. The present invention is not limited to the above embodiment, and the outer surface of the main body wall 2 of the container body 1 made of synthetic resin is integrated with the insert molding means using a blow molding method or the like using an in-mold label as an insert material. Alternatively, it may be configured to be adhesively fixed. In this case, it is possible to form the air layer 11 at the same time when blow molding is performed by previously applying a release agent or the like to the position where the non-bonding region 6B is to be formed.

  2 and 3 show a configuration in which the label 8 is provided on both the front wall 2A and the back wall 2B constituting the main body wall 2, but the label 8 is provided only on the front wall 2A. It is also possible to adopt a configuration provided only on the back wall 2B. Alternatively, the main body wall 2 may be configured to cover the entire circumference.

  Moreover, in the said Example, although demonstrated using the oval container main body 1 which has the main body wall part 2 which consists of a pair of front wall 2A and back wall 2B, the shape of a container is not specifically limited, for example, The present invention can be applied to various containers such as a round container having a flat cross-sectional shape such as a circle, semicircle, and ellipse, a triangular container, a rectangular container, and other polygonal containers having a square shape or more.

  The shape of the label is not limited to a rectangular shape, and may be other shapes such as a circular shape, an elliptical shape, a trapezoidal shape, and a star shape.

  Moreover, although the shape of the deformation | transformation part 2a, the non-adhesion area | region 6B, and the air layer 11 was demonstrated as an ellipse shape, these shapes should just be mutually substantially the same shape, and you may be comprised by shapes other than an ellipse shape.

  Furthermore, although the synthetic resin container provided with the nozzle head in the mouth tube portion is described as an example in the above embodiment, other synthetic resin containers closed with a normal cap may be used.

  The synthetic resin container with a label according to the present invention is a synthetic resin container field in which deterioration of the appearance of the resin container, which is likely to cause depression deformation in the container wall due to decompression, is suppressed to prevent a decrease in commercial value. Can be used in a wider area.

DESCRIPTION OF SYMBOLS 1; Container main body 2; Main body wall part 2A; Front wall 2B; Planar wall 2a; Deformation part 3; Side wall 4; Bottom part 5; Mouth part 6A; Label 9; ventilation means 9a; through hole 10; adhesive layer 11; air layer a; air w;

Claims (4)

At least a main body wall (2) provided with a deforming portion (2a) that is depressed and deformed in accordance with the reduced pressure in the container main body (1), and the deforming portion (2) adhered to the outer surface of the main body wall (2) In a bottomed cylindrical synthetic resin container having a label (8) covering 2a),
Between the main body wall (2) and the label (8), there is provided an adhesive layer (10) for adhering between the two, and air is provided at the center of the region surrounded by the adhesive layer (10). A non-adhesive region (6B) comprising a layer (11) is arranged,
When the inside of the container main body (1) is depressurized to the label (8), outside air is caused to flow into the air layer (11) from a direction perpendicular to the label (8), and the deformed portion (2a) A synthetic resin container with a label, characterized in that a venting means (9) for inducing a depression deformation of said is provided.   The synthetic resin container with a label according to claim 1, wherein the ventilation means (9) is a through hole (9a) formed in the label.   The synthetic resin container with a label according to claim 1, wherein the ventilation means (9) is the label (8) itself formed with a film having both waterproofness and air permeability as a base member.   The label-made synthetic resin container according to any one of claims 1 to 3, wherein the label is bonded to a pair of opposing body wall portions (2).

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