JP6082218B2 - Container with cylindrical label - Google Patents

Description

  The present invention relates to a container with a cylindrical label in which a stretch label is attached to a flexible container.

  The stretch label is formed in a cylindrical shape by superimposing both end portions of a film having self-stretchability (elastic force) and bonding the overlapped portion (Patent Document 1). Such a stretch label is inserted into the container in a state where the diameter is expanded by applying an expansion force, then restored by releasing the expansion force, and is strongly adhered to the container by its self-shrinking force (also referred to as a clamping force).

Generally as a container which mounts the said stretch label, synthetic resin containers, such as a polyethylene terephthalate, are mentioned.
In recent years, from the viewpoint of soaring material prices and resource saving, containers having a wall thickness as small as possible have been used to reduce the amount of material used. Since the container in which the amount of the material used is suppressed is easily deformed, an uneven part (rib) is usually formed on the body part of the container.
However, when a stretch label is attached to a body portion having a reduced thickness, a part of the body portion may be depressed inward due to the self-shrinking force of the stretch label.
On the other hand, when a stretch label having relatively weak self-shrinkage force is attached to the container to prevent the container from collapsing as described above, the stretch label may be displaced from the initial attachment position during the distribution process and use of the container.

JP 2002-132160 A

  The objective of this invention is providing the container with a cylindrical label which can prevent the depression of a container and the position shift of a stretch label.

The container with a cylindrical label of the present invention includes a container having a concave wall surface recessed inward and a body portion formed with a convex wall surface protruding outward with reference to the concave wall surface, and a self-stretchable film. A cylindrical stretch label attached to a container, wherein the strength of the top of the convex wall surface is greater than the strength of the bottom of the concave wall surface , and the thickness at the top of the convex wall surface is It is formed larger than the wall thickness at the bottom of the wall surface, and the stretch label is in close contact with the body including the convex wall surface and the concave wall surface by self-shrinking force.

  In such a container with a cylindrical label of the present invention, the convex wall surface of the container is strongly clamped by the stretch label due to the self-shrinking force of the stretch label, but the convex wall surface is not easily crushed because the strength of the convex wall surface is large. On the other hand, since the strong tightening of the stretch label does not act on the concave wall surface, the concave wall surface with low strength is not easily crushed by the stretch label. For this reason, depression of the trunk of the container can be prevented by the tightening force of the stretch label. On the other hand, since the stretch label is in close contact with the convex wall surface, displacement of the stretch label can be prevented.

In a preferred container with a cylindrical label according to the present invention, the self-stretchable film can be stretched in the circumferential direction to a stretching ratio of 1.60 times or more, and stretched in the circumferential direction to 1.60 times at a stretching speed of 50 mm / min. The film has an instantaneous strain of 13% or less.
In the preferable container with a cylindrical label according to the present invention, the stretch label is in close contact with the trunk including the boundary between the convex wall surface and the concave wall surface.
In a preferable container with a cylindrical label according to the present invention, the lower end opening of the trunk is closed by the bottom surface, and the circumferential length of the concave wall surface becomes smaller toward the bottom surface.
In the preferable container with a cylindrical label according to the present invention, the convex wall surface of the trunk portion is formed at least at three or more intervals in the vertical direction, and the concave wall surface of the trunk portion is between the convex wall surfaces adjacent to the vertical direction. The circumferential length of the top of the intermediate convex wall surface of the body portion formed with the stretch label is smaller than the peripheral length of the top of the convex wall surface above and below the intermediate convex wall surface.
In a preferred container with a cylindrical label according to the present invention, the vertical length of the trunk portion to which the stretch label is attached is larger than the vertical length of the trunk portion before the stretch label is attached.

The container with a cylindrical label according to the present invention can prevent the barrel portion of the container from being partially depressed due to the self-shrinking force of the stretch label, or the stretch label from shifting from the initial mounting position.
Moreover, since the concave wall surface is reinforced by the stretch label, the container with a cylindrical label of the present invention is difficult to be deformed during use.

The perspective view of the stretch label used for the container with a cylindrical label which concerns on 1st Embodiment. The expanded sectional view cut | disconnected by the II-II line | wire of FIG. The front view of the container used for the container with a cylindrical label which concerns on 1st Embodiment. The expanded sectional view cut | disconnected by the IV-IV line of FIG. The front view of the container with a cylindrical label which concerns on 1st Embodiment. Sectional drawing cut | disconnected by the VI-VI line of FIG. The front view of the container used for the container with a cylindrical label which concerns on 2nd Embodiment. The front view of the container with a cylindrical label which concerns on 2nd Embodiment. Sectional drawing cut | disconnected by the IX-IX line of FIG. The front view of the container used for the container with a cylindrical label which concerns on the modification of 2nd Embodiment. The front view of the container with a cylindrical label which concerns on the modification. Sectional drawing cut | disconnected by the XII-XII line | wire of FIG. The front view of the container used for the container with a cylindrical label which concerns on 3rd Embodiment. The expanded sectional view cut | disconnected by the XIV-XIV line | wire of FIG. The front view of the container with a cylindrical label which concerns on 3rd Embodiment. Sectional drawing cut | disconnected by the XVI-XVI line | wire of FIG. The front view of the container with a cylindrical label which concerns on the modification of 3rd Embodiment.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings as appropriate.
The “inner surface” of the stretch label and its constituent members refers to the surface located inside the cylindrical body, and the “outer surface” refers to the opposite surface. The “outer surface” of the container refers to the surface on the side that contacts the stretch label. “Up” refers to the side away from the flat surface with the bottom surface of the container placed on the flat surface, and “lower” refers to the side close to the flat surface.
Moreover, in this specification, the description "PPP-QQQ" means PPP or more and QQQ or less.
It should be noted that the specific dimensions and scale ratios of each figure are different from the actual ones.

[First Embodiment]
1st Embodiment is related with the container with a cylindrical label by which the stretch label is mounted | worn with the cup-shaped container.

(Stretch label)
1 and 2, the stretch label 1 used for the container with a cylindrical label of the present invention is formed of a cylindrical body in which a base material 2 including a self-stretchable film 21 is formed into a cylindrical shape.
In the stretch label 1, the inner surface of the first side end portion 2 a of the base material 2 is overlapped with the outer surface of the second side end portion 2 b to form a cylindrical shape, and the overlapped portion is bonded to form a superposed adhesive portion. It consists of a cylindrical body. In addition, the formation method of a cylindrical body is not limited to this, For example, the inner surface or the outer surfaces of the 1st side edge part 2a and the 2nd side edge part 2b of the base material 2 are overlapped in the shape of a palm, and the overlapping You may form a cylindrical body by adhere | attaching a part.
Examples of the bonding method of the superposed bonding portion (the inner surface of the first side end portion 2a and the outer surface of the second side end portion 2b) include heat sealing or bonding using an adhesive.
The cylindrical stretch label 1 including the self-stretchable film 21 extends and expands its diameter by applying an expansion force in the radially outward direction, and releases the expansion force to release the original cylindrical shape by its own contraction force. Almost restored.

The base material 2 has a self-stretchable film 21, and a design print layer 22 or the like is provided on the self-stretchable film 21 as necessary.
The self-stretchable film 21 only needs to have self-stretchability in at least one direction, and one direction and another direction (the other direction refers to a direction orthogonal to the one direction in the plane of the film. ) May have a self-stretching property. Self-stretching refers to the property of expanding when an expansion force is applied and restoring to the original state after releasing the expansion force.

The thickness of the self-stretchable film 21 is not particularly limited, but is preferably 10 μm to 100 μm, more preferably 15 μm to 80 μm, and particularly preferably 20 μm to 50 μm.
In the present invention, a general-purpose self-stretch film or a high-stretch type self-stretch film 21 may be used as the self-stretch film 21. Since the convex wall surface of the trunk portion is tightened more strongly, it is preferable to use a high-stretch type self-stretchable film.
Hereinafter, a general-purpose type self-stretchable film and a high-stretch type self-stretchable film will be described.

(1) General-purpose type self-stretchable film When a general-purpose self-stretchable film is formed into a tubular body, it can be stretched in the circumferential direction of the tubular body to an expansion ratio of 1.25 times or more and less than 1.60 times. And, it is preferable that the instantaneous strain after stretching 1.25 times (50 mm / min) is 10.5% or less, more preferably the instantaneous strain after stretching 1.25 times is 10% or less, The instantaneous strain after stretching to 1.25 times is particularly preferably 8% or less, and the instantaneous strain after stretching to 1.25 times is most preferably 6% or less.

  Furthermore, the self-stretchable film can be stretched to a stretching ratio of 1.40 times or more and less than 1.60 times, and an instantaneous strain (50 mm / min) after stretching to 1.40 times is 10.5% or less. Some are preferable, the instantaneous strain after stretching to 1.40 times is more preferably 10% or less, the instantaneous strain after stretching to 1.40 times is particularly preferably 8% or less, and stretching to 1.40 times Most preferably, the subsequent instantaneous strain is 6% or less.

The upper limit of the stretch ratio of the self-stretchable film is not particularly limited, but is, for example, 2.0 times or less. Further, the lower limit of the instantaneous strain of the self-stretchable film is theoretically zero, but it is rarely zero. For this reason, the lower limit of the instantaneous strain of the self-stretchable film exceeds 0%, preferably 1% or more.
The stretching magnification is obtained by the length after stretching / the length before stretching.

The instantaneous strain can be measured as follows.
The self-stretchable film has a length of 15 ± 0.1 mm in the other direction (corresponding to the vertical direction of the cylindrical body) and a length of 200 mm in one direction (corresponding to the circumferential direction of the cylindrical body) (distance between marked lines 100 ±). 2 mm) rectangles to make sample pieces. Using the long side direction of the sample piece as a measurement direction, the sample piece is pulled until it reaches a predetermined expansion ratio (1.25 times or 1.40 times), and the distance between the marked lines of the sample piece is measured.

In the measurement, for example, using a constant crosshead speed type or pendulum type tensile tester (extension speed at the time of test: 50 mm / min), a predetermined load (N) is applied, and the distance between the marked lines of the sample pieces is predetermined. The distance between the marked lines is read when the load is returned to 0 (N). By substituting the measured value into the following formula, the instantaneous strain (%) is calculated.
Instantaneous strain (%) = 100 × ΔL2 / L2.
The L2 indicates the distance (mm) between the marked lines of the sample pieces before pulling, and the ΔL2 indicates the increase (mm) in the distance between the marked lines of the sample pieces when the load is returned after stretching.
The permanent strain (%) can be calculated by removing the distance from the marked line after removing from the testing machine after the tensile test and storing in a constant temperature bath at 23 ° C. for 4 weeks.

  The material of the general-purpose type self-stretchable film is not particularly limited, and generally includes a polyolefin-based resin such as a polyethylene-based resin. Examples of the polyethylene resin include low density polyethylene (LDPE), linear low density polyethylene (LLDPE), metallocene polyethylene (linear low density polyethylene obtained by polymerization using a metallocene catalyst), and ethylene-acetic acid. Examples thereof include thermoplastic resins such as vinyl copolymers, ethylene- (meth) acrylic acid ester copolymers, ethylene- (meth) acrylic acid copolymers, and ionomers. These can be used alone or in combination of two or more.

As the material of the self-stretchable film, linear low density polyethylene (LLDPE) is preferably used, and more preferably, metallocene polyethylene is used.
The self-stretchable film may be non-stretched, but is preferably stretched by 1.01 to 1.3 times in the TD direction and MD direction, respectively, particularly 1.05 to 1.15 times. More preferably stretched.

(2) Highly stretchable self-stretchable film When a highly stretchable self-stretchable film is formed into a tubular body, the stretchable self-stretchable film can be stretched at a stretching ratio of 1.60 times or more in the circumferential direction of the tubular body, and Those having an instantaneous strain (50 mm / min) after stretching 1.60 times in the circumferential direction are preferably 13% or less, and those having an instantaneous strain after stretching 1.60 times are 11.5% or less. More preferably, the instantaneous strain after stretching to 1.60 times is 10.5% or less, and the instantaneous strain after stretching to 1.60 times is most preferably 10% or less.

  Furthermore, the high-stretch type self-stretchable film can be stretched at a stretching ratio of 1.75 times or more in the circumferential direction of the cylindrical body, and has an instantaneous strain (50 mm / min) after stretching to 1.75 times in the circumferential direction. ) Is preferably 13% or less, more preferably an instantaneous strain after stretching 1.75 times to 11.5% or less, and an instantaneous strain after stretching 1.75 times is 10.5. % Is particularly preferred, and the instantaneous strain after stretching 1.75 times is most preferably 10% or less.

  In addition, the high-stretch type self-stretchable film can be stretched at a stretching ratio of 1.60 times or more (preferably 1.75 times or more) in the circumferential direction of the cylindrical body, and 1.60 times in the circumferential direction. It is preferable that the instantaneous strain (6000 mm / min) after stretching is preferably 30% or less (preferably 1.75 times), and the instantaneous strain after stretching is 1.60 times (preferably 1.75 times). %, More preferably 1.60 times (preferably 1.75 times) the same, and an instantaneous strain after stretching of 18% or less is particularly preferred.

The upper limit of the stretch ratio of the self-stretchable film is not particularly limited, but is, for example, 2.0 times or less. Further, the lower limit of the instantaneous strain of the self-stretchable film is theoretically zero, but it is rarely zero. For this reason, the lower limit of the instantaneous strain of the self-stretchable film exceeds 0%, preferably 1% or more.
The stretching magnification is obtained by the length after stretching / the length before stretching.

The instantaneous strain can be measured as follows.
The self-stretchable film has a length of 15 ± 0.1 mm in the other direction (corresponding to the vertical direction of the cylindrical body. Hereinafter, the other direction may be referred to as the vertical direction) and one direction (in the circumferential direction of the cylindrical body). In the following, one direction is sometimes referred to as the circumferential direction), and is cut into a rectangle having a length of 200 mm (distance between marked lines 100 ± 2 mm) to produce a sample piece. Using the long side direction of the sample piece as a measurement direction, the sample piece is pulled until a predetermined expansion ratio (1.60 times or 1.75 times) is obtained, and the distance between the marked lines of the sample piece is measured.

The measurement is performed by, for example, using a constant crosshead speed type or pendulum type tensile tester (elongation speed at the time of test: 50 mm / min or 6000 mm / min) and applying a predetermined load (N) to the marked line of the sample piece. The distance is increased until the distance becomes a predetermined magnification (1.60 times or 1.75 times), and immediately after this, the distance between the marked lines when the load is returned to 0 (N) is read. By substituting the measured value into the following formula, the instantaneous strain (%) is calculated.
Instantaneous strain (%) = 100 × ΔL2 / L2.
The L2 indicates the distance (mm) between the marked lines of the sample pieces before pulling, and the ΔL2 indicates the increase (mm) in the distance between the marked lines of the sample pieces when the load is returned after stretching.

The permanent strain (%) can be calculated by removing the distance from the marked line after removing from the testing machine after the tensile test and storing in a thermostatic bath at 23 ° C. for 4 weeks.
Hereinafter, the tensile test refers to stretching a sample piece using a tensile tester in the instantaneous strain measurement method.

In addition, the stretch characteristics of the high-stretch type self-stretchable film can be expressed by permanent set. Permanent strain (%) indicates the degree of deformation of the sample piece without returning to its original length after the tensile test, similar to the instantaneous strain, but differs from the instantaneous strain in that it is measured 4 weeks after the load is removed. The extension rate of the sample piece in the tensile test when measuring permanent set is “50 mm / min”.
The smaller the permanent set, the higher the recoverability of the label and the better the stretch characteristics. Among them, the permanent set (50 mm / min) after stretching at a stretching magnification of 1.60 times in the circumferential direction is preferably 11% or less, more preferably 8% or less, particularly preferably 7% or less, and most preferably 6% or less. .

Further, when the tensile stress in the vertical direction (the other direction of the film) when the cylindrical body is 4.3 N / mm ² , the vertical stretch (50 mm / min) of the self-stretchable film is 9%. The following (for example, 1% to 9%) is preferable, 4% to 9% is more preferable, and 5% to 8% is particularly preferable.
The elongation in the vertical direction can be obtained from a stress strain curve of tensile stress and elongation (strain).

Specifically, the self-stretchable film is cut into a rectangle having a length of 200 mm in the other direction (distance between marked lines of 100 ± 2 mm) and a length of 15 ± 0.1 mm in one direction to produce a sample piece. Using the long side direction of the sample piece as the measurement direction, the sample piece is pulled using a constant crosshead speed type or pendulum type tensile tester (extension speed: 50 mm / min), and a stress-strain curve at that time is obtained. The elongation (%) of the sample piece obtained from the curve when the tensile stress is 4.3 N / mm ² is defined as the vertical elongation.

Further, when the self-stretchable film is a cylindrical body, the tensile stress (hereinafter referred to as F10 value) when stretched at least 1.10 times in the circumferential direction is preferably 1. 10 N / mm ² , more preferably ^{2 to} 8 N / mm ² , and particularly preferably 3 to 7 N / mm ² .
Moreover, the tensile stress (hereinafter referred to as F60 value) when stretched at least 1.60 times with respect to the circumferential direction is preferably 1 to 12 N / mm ² , more preferably ^{2 to} 10 N / mm. ² , particularly preferably 3 to 9 N / mm ² . In addition, if the lower limit value of the F10 value and the F60 value is too low, the tightening force of the container becomes too weak in the stretched state, and a good-looking wearing state may not be obtained.
The F10 value and F60 value can be determined from a stress strain curve of tensile stress and elongation (strain) obtained by a tensile test of the instantaneous strain measurement method.

As described above, the expansion ratio in the circumferential direction is as high as 1.60 times or more, the instantaneous strain (50 mm / min) after expansion to 1.60 times in the circumferential direction is 13% or less, and the F10 value in the circumferential direction is 10 N. A high-stretch type self-stretch film exhibiting a small value of / mm ² or less has extremely excellent stretch characteristics as compared with a general-purpose type self-stretch film.

  The high stretch type self-stretch film is preferably composed mainly of linear low density polyethylene (LLDPE). By using such polyethylene, it is possible to obtain a base material excellent in stretch ratio and heat sealability. The self-stretchable film can also have a laminated structure using a plurality of types of linear low density polyethylene. Moreover, the single layer structure formed using a kind of linear low density polyethylene may be sufficient.

  The linear low density polyethylene is preferably a copolymer of ethylene and α-olefin. The α-olefin is preferably an α-olefin having 3 to 20 carbon atoms, and an α-olefin having 4 to 8 carbon atoms (for example, 1-butene, 1-pentene, 4-methyl-1-pentene, 1- Hexene, 1-heptene, 1-octene and the like are particularly preferable. The content of the α-olefin component is preferably 1 to 20% by weight, more preferably 2 to 15% by weight, and particularly preferably 5 to 10% by weight with respect to the total weight of the monomer component. . The linear low density polyethylene is particularly preferably polymerized using a metallocene catalyst. These linear low density polyethylene may be used independently and may use 2 or more types together.

As described above, the linear low density polyethylene has a density of 0.880 to 0.935 g / cm ³ . If the density is within this range, good stretch properties can be obtained. Incidentally, the density of the linear low density polyethylene is preferably 0.890~0.925g / cm ^3, more preferably 0.900~0.920g / cm ^3, 0.905~0. Particularly preferred is 915 g / cm ³ .

  The linear low density polyethylene has an MFR (190 ° C., 2.16 kg) of 1 to 30 g / 10 min. If the MFR is within this range, the productivity will be good. The MFR of the linear low density polyethylene is more preferably 1 to 20 g / 10 minutes, and particularly preferably 1 to 10 g / 10 minutes.

  A commercial item can be used for the said linear low density polyethylene. Examples of commercially available products include “Umerit (registered trademark) 715FT, 1540F, 0540F” manufactured by Ube Maruzen Polyethylene Co., Ltd.

  Linear low density polyethylene is a monomer component other than ethylene and the above α-olefin, for example, vinyl carboxylate such as vinyl acetate (VA), unsaturated carboxylic acid such as acrylic acid (AA), methyl methacrylate (MMA), etc. (Meth) acrylic acid ester etc. may be contained. In addition, the “main component” means that a resin other than the linear low-density polyethylene and additives (for example, a lubricant and an antistatic agent) may be included within a range not impairing the object of the present invention. For example, the linear low density polyethylene may be 70% by weight (70% by weight or more) based on the total weight of the resin constituting the self-stretchable film. Particularly preferably, the linear low density polyethylene is contained in an amount of 90% by weight or more.

  Furthermore, the high-stretch type self-stretchable film has a refractive index in the vertical direction when it is a cylindrical body, which is larger than the refractive index in the thickness direction, and is from 1.507 to 1.528. The refractive index in the vertical direction is preferably 1.510 to 1.525. Further, the refractive index in the circumferential direction of the self-stretchable film is preferably equal to or smaller than the refractive index in the vertical direction, and is preferably 1.500 to 1.528, more preferably. 1.503 to 1.520. And it is preferable that the refractive index of the circumferential direction of a self-stretchable film is equal to the refractive index of the thickness direction, or larger than the refractive index of the thickness direction. The refractive index in the thickness direction of the self-stretchable film is preferably 1.500 to 1.510.

  In particular, the refraction in the circumferential direction of the self-stretching film does not impair the stretchability (stretch characteristics) of the high-stretch type self-stretching film and prevents partial distortion of the self-stretching film when stretched. The refractive index is preferably larger than the refractive index in the thickness direction and equal to or smaller than the refractive index in the vertical direction.

The ratio (Rh / Rt) of the refractive index in the vertical direction (Rh) to the refractive index in the thickness direction (Rt) of the self-stretchable film is preferably 1.001 to 1.030. 002 to 1.020 is more preferable, and 1.003 to 1.015 is particularly preferable.
The ratio (Rc / Rt) of the refractive index (Rc) in the circumferential direction to the refractive index (Rt) in the thickness direction of the self-stretchable film is preferably 1.000 to 1.030, preferably 1.001 to 1.020. Is more preferable, and 1.002 to 1.015 is particularly preferable.
The ratio (Rc / Rh) of the refractive index (Rc) in the circumferential direction to the refractive index (Rh) in the vertical direction of the self-stretchable film is preferably 0.980 to 1.005, more preferably 0.985 to 1.000. Preferably, 0.990-0.999 are especially preferable.

The refractive index of the film can be measured according to JIS K 7105, 7142.
The refractive index is measured at a wavelength of 589 nm using, for example, an Abbe refractometer (product name “Abbe refractometer NAR-2T” manufactured by Atago Co., Ltd., Na white light source) based on method A of JIS K7142. It can be measured.

  The refractive index of the self-stretchable film can be realized by controlling the composition of the linear low density polyethylene that is the main component of the self-stretchable film and the stretching of the self-stretchable film. In particular, the difference in refractive index between the vertical direction, the circumferential direction, and the thickness direction can be realized by controlling the stretching direction and the stretching ratio of the self-stretchable film.

  The draw ratio is 1.01 to 1.40 times, preferably 1.03 to 1.35 times, particularly preferably 1.05 times in the TD direction and the MD direction, respectively, from the viewpoint of achieving both stretch characteristics and production suitability. ~ 1.30 times. The self-stretchable film may not be stretched in the circumferential direction of the cylindrical body, but is preferably stretched at a magnification equal to or less than the vertical direction. In particular, a self-stretchable film that is stretched at an equivalent magnification with respect to the circumferential direction and the up-down direction of the cylindrical body is preferable in the range where the stretching ratio is 1.05 to 1.30.

As shown in FIG. 2, the self-stretchable film 21 (general-purpose type or high stretchable type) is usually provided with a design printing layer 22 in order to display a desired design.
The design print layer 22 is provided on either the outer surface or the inner surface of the self-stretchable film 21 or both the outer surface and the inner surface. But when the design printing layer 22 is provided in the inner surface of the 1st side edge part 2a which comprises the said superposition | polymerization adhesion part, and the outer surface of the 2nd side edge part 2b, the inner surface and 2nd side of the 1st side edge part 2a are provided. There is a possibility that the outer surface of the end 2b does not adhere with sufficient adhesive strength. For this reason, it is preferable that the design printing layer 22 is not provided in the inner surface of the 1st side edge part 2a, and the outer surface of the 2nd side edge part 2b.
Further, in the case where the design print layer 22 is provided on the inner surface of the self-stretchable film 21, the entire innermost surface of the stretch label (the surface that comes into contact with the container) is used in order to further prevent the positional displacement and removal of the stretch label after mounting. Alternatively, for example, a printing layer with poor slipperiness can be provided. In particular, it is preferable to provide a printing layer with poor slipperiness at a position corresponding to the convex wall surface of the container 3 of the stretch label 1. Examples of the printing layer with poor slipperiness include a printing layer containing no lubricant or having a low lubricant content, and a printing layer containing a slippery wax (for example, polypropylene wax).

The self-stretchable film 21 may be transparent or opaque. As shown in the drawing, when the design print layer 22 is provided on the inner surface of the self-stretchable film 21, a colorless transparent or colored transparent film is used so that the design can be seen through from the outside.
The cylindrical stretch label 1 is configured by rolling the base material into a cylindrical shape so that the one direction is a circumferential direction, and bonding the first side end 2a and the second side end 2b of the base material. Has been.
In addition, the stretch label 1 may be formed with notches or perforations for removing the stretch label 1 from the container 3. Such notches are provided from the upper end and / or lower end of the label, or from the upper end to the lower end of the label (not shown).

(container)
3 and 4, the container 3 of the present embodiment has at least a bottom surface portion 31 and a body portion 32 formed above the bottom surface portion 31.
The trunk | drum 32 has flexibility. Flexibility refers to the property of being easily deformed by hand force. The lower opening of the body portion 32 is closed by the bottom surface portion 31.
Specifically, the bottom surface portion 31 of the container 3 is a portion that becomes a ground contact surface when the container 3 is made to stand on its own. The shape of the bottom surface portion 31 (the contour of the bottom surface portion 31 when viewed from the bottom of the container 3) is not particularly limited, but may be a substantially circular shape, a substantially square shape, a substantially rectangular shape, a substantially hexagonal shape, a substantially elliptical shape, or the like. Can be mentioned. In the example of illustration, the shape of the bottom face part 31 is a substantially circular shape.

The overall shape of the body portion 32 of the container 3 is a substantially cylindrical shape, and preferably a substantially inverted truncated cone shape. The substantially inverted frustoconical trunk portion 32 has a circumferential length that increases toward the top.
Although the trunk | drum 32 has an opening part up and down, the lower end opening part is obstruct | occluded watertight by providing the bottom face part 31 in the lower end of the trunk | drum 32 integrally. Further, the upper end opening of the body portion 32 is closed by a lid member 35. The lid member 35 is not particularly limited, but a sheet lid is used in the illustrated example.

A flange portion 33 is provided around the upper end of the body portion 32. The flange portion 33 is a bowl-shaped portion that protrudes in a direction perpendicular to the outer surface of the trunk portion 32 and in a radially outward direction of the trunk portion 32.
The sheet lid is detachably bonded to the upper surface of the flange portion 33 by means such as heat sealing.

Moreover, the trunk | drum 32 has the concave wall surface 321 dented inside, and the convex wall surface 322 which protruded outside on the basis of the said concave wall surface 321. FIG. The convex wall surface 322 is a surface portion that protrudes from the reference surface (concave wall surface 321) of the outer surface of the body portion 32 in the radially outward direction of the body portion 32. In the circumferential direction of the convex wall surface 322, there is no partially recessed portion, that is, the region where the convex wall surface 322 is formed is a convex wall surface that is continuous in the entire circumferential direction. On the other hand, in the circumferential direction of the concave wall surface 321, there is no part projecting part, that is, the region where the concave wall surface 321 is formed is a concave wall surface in which the entire circumferential direction is continuous. In addition, the concave wall surface and the convex wall surface are concepts relative to each other, and when there is a portion protruding outward in a portion of the body portion, a concave portion is generated rather than the protruding portion, and these are defined as the convex wall surface. It is a concave wall surface.
The convex wall surface 322 of the illustrated example is formed at one location above the trunk portion 32.

The circumferential length of the convex wall surface 322 is larger than the circumferential length of the concave wall surface 321, and the upper end portion (boundary portion with the flange portion 33) of the convex wall surface 322 is the maximum diameter portion of the body portion 32.
The convex wall surface 322 is integrally formed above the concave wall surface 321, and the circumferential length of the convex wall surface 322 gradually decreases as it goes downward. The circumferential length of the concave wall surface 321 gradually decreases as it goes downward.
In addition, the convex wall surface 322 and the concave wall surface 321 are not limited to the shape in which the circumferential length becomes small gradually as it goes below, and the convex wall surface 322 and the concave wall surface 321 have a straight body shape (the circumferential length changes in the upper and lower sides). (Not shown). In addition, the convex wall surface 322 may be formed in a dogleg shape (a shape in which the central portion of the convex wall surface has a maximum diameter and then contracts in the vertical direction), or is thicker toward the inner surface of the container. It may be formed in a meat shape (not shown).
In addition, although the content is accommodated in the trunk | drum 32 of the container 3, the content is not shown in figure (Hereafter, it is the same also in other embodiment.).

  The material of the container 3 is not particularly limited, and thermoplastic resins such as polyolefin resins such as polypropylene and polyethylene, styrene resins such as polystyrene, and polyester resins such as polyethylene terephthalate can be used. Moreover, as a forming material of the container 3, sheet materials such as a foamed resin sheet, a laminated sheet obtained by laminating the thermoplastic resin and the foamed resin sheet, and other laminated sheets can be used. The bottom surface portion 31, the body portion 32, and the flange portion 33 are integrally formed using the thermoplastic resin or sheet material.

The thickness at the top of the convex wall surface 322 is larger than the thickness at the bottom of the concave wall surface 321. In this embodiment, since the trunk | drum 32 containing the convex wall surface 322 and the concave wall surface 321 is integrally formed with the synthetic resin, the intensity | strength of the top part of the thick convex wall surface 322 is the concave wall surface 321 with small thickness. Greater than the strength of the bottom.
In the present specification, the top of the convex wall surface 322 corresponds to the central portion in the vertical direction of the convex wall surface 322, and the bottom of the concave wall surface 321 is within the concave wall surface 321 except for the portion corresponding to the bottom surface portion of the container 3. Corresponds to the center in the vertical direction. In FIG. 4, the positions of the top of the convex wall surface 322 and the bottom of the concave wall surface 321 are indicated by thick arrows.
Further, the strength of the top of the convex wall surface 322 and the bottom of the concave wall surface 321 corresponds to the bending strength.

The thickness of the top portion of the convex wall surface 322 and the thickness of the bottom portion of the concave wall surface 321 can be appropriately set.
The thickness of the top part of the convex wall surface 322 is more than 1.0 times and less than 5 times, preferably 1.1 times to 3.5 times the thickness of the bottom part of the concave wall surface 321.

(Container with cylindrical label)
5 and 6, the container 11 with a cylindrical label of the present invention includes the container 3 and the stretch label 1 attached around the outer surface of the container 3.
The cylindrical stretch label 1 is mounted so as to cover at least the outer surface of the trunk portion 32 including the convex wall surface 322 and the concave wall surface 321. In the illustrated example, the stretch label 1 is mounted from the lower surface of the flange portion 33 or near the lower surface thereof to the lower end of the body portion 32 of the container 3. But the lower part of the stretch label 1 may bend | fold to the bottom face part 31 side of the container 3, may be closely_contact | adhered to the peripheral edge part, and may be closely_contact | adhered to the middle part of the trunk | drum 32 (not shown). When the stretch label 1 is attached so that the lower portion of the stretch label 1 is located in the middle of the body portion 32, it is preferable to provide a recess in the body portion 32 so that the lower end of the stretch label 1 is not displaced downward.

  Specifically, the upper end of the stretch label 1 is in contact with or near the lower surface of the flange portion 33. The lower end of the stretch label 1 is located at the lower end of the trunk portion 32. The stretch label 1 is in close contact with the entire outer surface of the body 32 including the convex wall surface 322, the concave wall surface 321, and the boundary between the convex wall surface 322 and the concave wall surface 321.

The said container 11 with a cylindrical label can be obtained as follows.
A stretch label 1 having a circumferential length that is substantially the same as the vertical length of the body portion 32 of the container 3 and slightly smaller than the circumferential length of the bottom surface portion 31 of the container 3 is prepared.
The stretch label 1 is expanded in diameter by inserting an expansion device into the lower end opening of the stretch label 1 and applying an expansion force radially outward from the inside of the cylindrical stretch label 1. After aligning the upper end of the expanded stretch label 1 so that the upper end of the stretch label 1 substantially coincides with the lower surface of the flange portion 33 of the container 3 or the vicinity thereof, the stretch label 1 is externally fitted to the container 3, and then the diameter expansion device is pulled out. By releasing the expansion force, the stretch label 1 is restored to its original state by the self-shrinking force. Then, the container 11 with a cylindrical label in which the stretch label 1 is in close contact with the body portion 32 by self-shrinking force is obtained.
Moreover, it replaces with the said manufacturing method, for example, uses the horizontal pillow packaging machine, it winds in the state which extended the base material 2 which comprises the stretch label 1 to the container 3 of the state set horizontally, The container 11 with a cylindrical label is manufactured by overlapping the first side end portion 2a and the second side end portion 2b and bonding the overlapped portions to form a superposed adhesive portion, and then releasing the extension. You can also.

The said container 11 with a cylindrical label can prevent the trunk | drum 32 of the container 3 partially sinking by the self-shrink force of the stretch label 1, or the stretch label 1 shifting | deviating from an initial mounting position. This is presumed to be based on the following principle.
The stretch label 1 is in close contact with the container 3 by the self-stretching force, but the stretch label 1 is in close contact with the convex wall surface 322 of the container 3 as compared with the concave wall surface 321 of the container 3. In other words, when the tightening of the stretch label 1 with respect to the convex wall surface 322 and the concave wall surface 321 is compared, the convex wall surface 322 is tightened more greatly by the stretch label 1. This is because the convex wall surface 322 protrudes radially outward as compared to the concave wall surface 321, and the expanded stretch label 1 has a stronger contraction force as the diameter (peripheral length) increases. Also in the container 11 with the cylindrical label of the present invention, when the stretch label 1 is attached to the container 3, the convex wall surface 322 of the trunk portion 32 is strongly tightened, but the strength of the convex wall surface 322 is higher than that of the concave wall surface 321. Since it is large, the convex wall surface 322 is not easily crushed by the stretch label 1. On the other hand, since the tightening of the stretch label 1 does not act strongly on the concave wall surface 321, the concave wall surface 321 having a low strength is not easily crushed by the stretch label 1. Therefore, it can prevent that the trunk | drum 32 of the container 3 with which the stretch label 1 was mounted | worn is partially depressed. Furthermore, since the stretch label 1 that strongly tightens the convex wall surface 322 is sufficiently adhered to the convex wall surface 322, it is difficult to shift from the initial mounting position.

  Furthermore, in addition to the above effect, the present invention has a secondary effect that the concave wall surface 321 is reinforced by the stretch label 1. That is, since the stretch label 1 adheres to the concave wall surface 321 with an appropriate tightening force, the concave wall surface 321 having a relatively low strength is reinforced by the stretch label 1 and is not easily deformed during use (in particular, the concave wall surface 321 is not used during use). It is possible to provide the cylindrically labeled container 11 which is not easily deformed.

  The above effects can be achieved by using either a stretch label having the above-mentioned general-purpose type self-stretch film or a stretch label having a high-stretch type self-stretch film. Preferably, a highly stretchable self-stretchable film, that is, a moment that can be stretched in the circumferential direction to a stretching ratio of 1.60 times or more and stretched to 1.60 times in the circumferential direction at a stretching speed of 50 mm / min. The cylindrical label-equipped container 11 in which the stretch label 1 having a self-stretchable film having a strain of 13% or less is attached to the container 3 exhibits the above-described effects remarkably. Such a high-stretch type self-stretchable film has a large diameter and a large self-shrinking force, so that the convex wall surface 322 can be tightened more strongly and stretched to the lower end of the body portion 32 of the container 3 having a diameter difference. The body 1 can be reinforced by sticking the label 1.

[Second Embodiment]
2nd Embodiment is related with the container with a cylindrical label by which the stretch label is mounted | worn with the container in which the some convex wall surface formed the required space up and down.
In the description of the second embodiment, the description of the same configuration as in the first embodiment is omitted, and the term may be used as it is.

  The stretch label 1 used for the container with a cylindrical label of the second embodiment can be the one exemplified in the first embodiment. In particular, a highly stretchable self-stretchable film, that is, a strain that can be stretched to 1.60 times or more in the circumferential direction and stretched to 1.60 times at a stretching speed of 50 mm / min in the circumferential direction. It is preferable to use the stretch label 1 having a self-stretchable film having 13% or less.

The container 4 used for the container with a cylindrical label of the second embodiment is, for example, a bottle-type container 4.
As shown in FIG. 7, the container 4 includes a bottom surface portion 41, a body portion 42 formed above the bottom surface portion 41 and containing contents, and formed above the body portion 42 and pouring out the contents. And a pouring part 44 to be used. In addition, the extraction | pouring part 44 is corresponded to the upper end opening part of the cup-shaped container of the said 1st Embodiment.
The shape of the bottom surface portion 41 (the contour of the bottom surface portion 41 when viewed from the bottom of the container 4) is not particularly limited, and examples include a substantially circular shape, a substantially elliptical shape, a substantially rectangular shape, and a substantially square shape. In the illustrated example, the shape of the bottom surface portion 41 is a substantially circular shape.

The body 42 has flexibility. The body portion 42 includes a concave wall surface 421 that is recessed inward, and a plurality of convex wall surfaces 4221 and 4222 that protrude outward with respect to the concave wall surface 421.
The circumferential lengths of the convex wall surfaces 4221 and 4222 are larger than the circumferential length of the concave wall surface 421, respectively. In this embodiment, the convex wall surfaces 4221 and 4222 are the maximum diameter portion of the body portion 42. The convex wall surfaces 4221 and 4222 are formed in the upper part and the lower part of the body part 42, and the concave wall surface 421 is formed between the upper and lower convex wall surfaces 4221 and 4222. Above the convex wall surface 4221 of the upper portion, a neck portion 46 that gradually decreases in diameter toward the extraction portion 44 is formed. The neck portion 46 is a portion that connects the extraction portion 44 and the body portion 42.
The shape of the trunk | drum 42 is a substantially cylindrical shape, Preferably, it is a substantially cylindrical shape.

  In the circumferential direction of the convex wall surfaces 4221 and 4222, there are no partially recessed portions, that is, the regions where the convex wall surfaces 4221 and 4222 are formed are convex wall surfaces that are continuous in the entire circumferential direction. On the other hand, in the circumferential direction of the concave wall surface 421, there is no part that partially protrudes, that is, the region where the concave wall surface 421 is formed is a concave wall surface in which the entire circumferential direction is continuous. The convex wall surfaces 4221 and 4222 and the concave wall surface 421 in the illustrated example have a straight body shape. However, the convex wall surfaces 4221 and 4222 and the concave wall surface 421 may be gradually smaller or larger as the peripheral lengths thereof are directed downward, or may be formed in a dogleg shape.

The material of the container 4 is not particularly limited, and a thermoplastic resin such as a polyolefin resin such as polypropylene or polyethylene, a styrene resin such as polystyrene, or a polyester resin such as polyethylene terephthalate can be used. The neck portion 46 including the bottom surface portion 41, the body portion 42, and the extraction portion 44 is integrally formed using the thermoplastic resin.
As shown in FIG. 9, the thickness at the top of the convex wall surfaces 4221 and 4222 is larger than the thickness at the bottom of the concave wall surface 421. For this reason, the intensity | strength of the top part of the convex wall surfaces 4221 and 4222 is larger than the intensity | strength of the bottom part of the concave wall surface 421, respectively. In FIG. 9, the positions of the top portions of the convex wall surfaces 4221 and 4222 and the bottom portion of the concave wall surface 421 are indicated by thick arrows.

The thickness of the top of the convex wall surfaces 4221 and 4222 and the thickness of the bottom of the concave wall surface 421 can be set as appropriate.
The thickness of the tops of the convex wall surfaces 4221 and 4222 is more than 1 and less than or equal to 4 times, preferably 1.1 to 3.5 times the thickness of the bottom of the concave wall surface 421.
The upper end opening of the body 42 is closed by a lid member 45. The lid member 45 is not particularly limited, but a sheet lid is used in the illustrated example. This sheet lid is detachably bonded to the upper surface of the neck portion 46 forming the pouring portion 44 by means such as heat sealing.

8 and 9, the cylindrically labeled container 12 of this embodiment is mounted around the outer surface of at least the trunk portion 42 including the bottle-shaped container 4 and the upper and lower convex wall surfaces 4221 and 4222 and the concave wall surface 421. A stretched label 1. Preferably, the stretch label 1 is mounted such that its upper end hangs on a part of the neck portion 46 and its lower end hangs on the peripheral end portion of the bottom surface portion 41 of the container 4.
The stretch label 1 attached to the body portion 42 is in close contact with the upper and lower convex wall surfaces 4221 and 4222 and the concave wall surface 421 and the boundary between the convex wall surfaces 4221 and 4222 and the concave wall surface 421.

  Similarly to the first embodiment, the cylindrical label-equipped container 12 of the present embodiment also has the body portion 42 of the container 4 partially formed by the action of the convex wall surfaces 4221 and 4222 and the concave wall surface 421 of the container 4 and the stretch label 1. The stretch label 1 can be prevented from being depressed or displaced from the initial mounting position. Further, since the concave wall surface 421 is reinforced by the stretch label 1, it is difficult to be deformed during use.

[Modification of Second Embodiment]
In the example shown in FIGS. 7 to 9, the container 4 having two convex wall surfaces 4221 and 4222 is used, but a container having three or more convex wall surfaces may be used.
FIG. 10 shows a container 5 in which three convex wall surfaces 5221, 5222, and 5223 are formed.
The container 5 includes a bottom surface portion 51, a body portion 52 that is formed above the bottom surface portion 51 and accommodates contents, and a pouring portion 54 that is formed above the body portion 52 and that dispenses contents. The body 52 is formed with concave wall surfaces 5211 and 5212 that are recessed inward and three convex wall surfaces 5221, 5222, and 5223 that protrude outward with reference to the concave wall surfaces 5211 and 5212. . The peripheral lengths of these convex wall surfaces 5221, 5222, 5223 are larger than the peripheral lengths of the concave wall surfaces 5211, 5212. The three convex wall surfaces 5221, 5222, and 5223 are respectively formed on the upper portion, the middle portion, and the lower portion of the trunk portion 52, and the concave wall surfaces 5211, 5212 are interposed between the convex wall surfaces 5221, 5222, and 5223 adjacent to each other in the vertical direction. Each is formed. Above the convex wall surface 5221 of the upper part, a neck part 56 that gradually decreases in diameter toward the extraction part 54 is formed. A cap portion 55 (lid member) that is detachable by a screw structure (a screw structure is not shown) is attached to the upper end portion of the neck portion 56.

As shown in FIG. 12, the thickness at the top of the convex wall surfaces 5221, 5222, 5223 is larger than the thickness at the bottom of the concave wall surfaces 5211, 5212. For this reason, the intensity | strength of the top part of convex wall surface 5221, 5222, 5223 is larger than the intensity | strength of the bottom part of concave wall surface 5211, 5212. FIG.
The thickness of the top portions of the convex wall surfaces 5221, 5222, and 5223 and the thickness of the bottom portions of the concave wall surfaces 5211 and 5212 are as described in the second embodiment.

11 and 12, the cylindrically labeled container 13 of the present modification includes at least a body portion 52 including the bottle-shaped container 5 and three convex wall surfaces 5221, 5222, 5223 and concave wall surfaces 5211, 5212. And a stretch label 1 mounted around the outer surface. Preferably, the stretch label 1 is mounted such that its upper end hangs on a part of the neck portion 56 and its lower end hangs on the peripheral end portion of the bottom surface portion 51 of the container 5.
The stretch label 1 attached to the body 52 is in close contact with the three convex wall surfaces 5221, 5222, 5223, the concave wall surfaces 5211, 5212, and the boundary between the convex wall surfaces 5221, 5222, 5223 and the concave wall surfaces 5211, 5212.

The circumferential length of the top portion of the middle convex wall surface 5222 (in the illustrated example, the second convex wall surface 5222 from the top of the three) of the trunk portion 52 to which the stretch label 1 is attached is above and below the middle convex wall surface. It is slightly smaller than the circumference of the tops of the existing convex wall surfaces 5221 and 5223.
In addition, the vertical length of the body portion 52 to which the stretch label 1 is attached is slightly larger than the vertical length of the body portion 52 before the stretch label 1 is attached.
Since the upper end of the upper convex wall surface 5221 is connected to the neck portion 56 that gradually decreases in diameter and the lower end of the lower convex wall surface 5223 is connected to the bottom surface portion 51, the upper and lower convex wall surfaces 5221, 5223 are stretch labels 1. Does not shrink inward by tightening. On the other hand, since the intermediate convex wall surface 5222 has concave wall surfaces 5211 and 5212 having relatively low strength above and below, the intermediate convex wall surface 5222 contracts slightly inward (slightly decreases in diameter) by being tightened by the stretch label 1. When the intermediate convex wall surface 5222 is slightly reduced in diameter, the distortion corresponding to the reduced diameter affects the upper and lower concave wall surfaces 5211 and 5212, and the concave wall surfaces 5211 and 5212 slightly extend up and down. The vertical length of the body portion 52 is slightly increased.

  In addition, the vertical length of the body portion 52 before the stretch label 1 is attached is the length in the vertical direction between the marks before placing the stretch label 1 with marks on the upper and lower ends of the body portion 52. It is obtained by measuring the thickness. The vertical length of the body portion 52 to which the stretch label 1 is attached is obtained by measuring the length in the vertical direction between the marks after the stretch label 1 is attached to the container 5. Moreover, it is slightly larger than the length in the vertical direction of the body portion 52 before the stretch label 1 is attached.

Similarly to the first embodiment, the cylindrical label-equipped container 13 of the present modification also has the body 52 of the container 5 due to the action of the convex wall surfaces 5221, 5222, 5223 and the concave wall surfaces 5211, 5212 of the container 5 and the stretch label 1. Can be prevented from being partially depressed, or the stretch label 1 can be prevented from being displaced from the initial mounting position, and the concave wall surfaces 5211 and 5212 are reinforced by the stretch label 1, so that it is difficult to be deformed during use.
When four or more convex wall surfaces are formed, the intermediate convex wall surface is a convex wall surface excluding the uppermost convex wall surface and the lowermost convex wall surface.

[Third Embodiment]
In the third embodiment, a stretch label is formed on a container in which a plurality of convex wall surfaces are formed at predetermined intervals in the vertical direction, and convex wall surfaces and concave wall surfaces are alternately formed in the circumferential direction in a partial region of the body portion. It is related with the container with a cylindrical label to which is attached.
In the description of the third embodiment, the description of the same configuration as in the first or second embodiment is omitted, and the term may be used as it is.

  The stretch label 1 used for the container with a cylindrical label of the third embodiment can be the one illustrated in the first embodiment. In particular, a highly stretchable self-stretchable film, that is, a strain that can be stretched to 1.60 times or more in the circumferential direction and stretched to 1.60 times at a stretching speed of 50 mm / min in the circumferential direction. It is preferable to use the stretch label 1 having a self-stretchable film having 13% or less.

  The container 6 used for the container with a cylindrical label of the third embodiment is, for example, a bottle type container. This container 6 is not a beverage filling bottle (positive pressure bottle) to which internal pressure is applied like a container for filling carbonated beverages or the like, but is filled with fruit beverages, tea-based beverages, etc., for filling beverages without application of internal pressure. Used as a bottle (negative pressure bottle).

As shown in FIGS. 13 and 14, the container 6 includes a bottom surface portion 61, a body portion 62 that is formed above the bottom surface portion 61 and accommodates contents, and is formed above the body portion 62 and includes contents. And a pouring part for pouring out. Note that the extraction portion corresponds to the upper end opening.
The shape of the bottom surface portion 61 (contour of the bottom surface portion 61 when viewed from below the container 6) is not particularly limited, and examples thereof include a substantially circular shape, a substantially elliptical shape, a substantially rectangular shape, and a substantially square shape. In the illustrated example, the shape of the bottom surface portion 61 is a substantially circular shape.
The body 62 has flexibility. The trunk | drum 62 has several concave wall surface 6211, 6212, 6213 dented inside, and several convex wall surface 6221, 6222, 6223, 6224, 6225 which protruded outward on the basis of the said concave wall surface.

Specifically, the uppermost and lowermost concave wall surfaces 6211 and 6213 do not have a portion that partially protrudes in the circumferential direction. That is, the entire circumferential direction is continuous in the region where the concave wall surfaces 6211 and 6213 are formed. It is a concave wall surface.
Further, the convex wall surfaces 6221, 6222, 6224, 6225 of the uppermost stage, the second stage from the top, the lowermost stage, and the second stage from the bottom do not have a partially recessed portion in the circumferential direction, that is, the convex wall surface 6221, The region in which 6222, 6224, and 6225 are formed is a convex wall surface that is continuous in the entire circumferential direction. The upper concave wall surface 6211 is formed between the uppermost and second convex walls 6221 and 6222 from the top, and the lower concave wall surface 6213 is the lowermost and second convex walls 6224 and 6225 from the bottom. Is formed between.
On the other hand, in the region between the convex wall surface 6222 and the convex wall surface 6224, a plurality of convex wall surfaces 6223 and concave wall surfaces 6212 are alternately formed in the circumferential direction.

The circumferential lengths of the convex wall surfaces 6221, 6222, 6224, 6225 are larger than the circumferential lengths of the concave wall surfaces 6211, 6213, respectively. In this embodiment, the convex wall surfaces 6221, 6222, 6224, 6225 are the maximum diameter of the body portion 62. Has become a department. Further, a neck portion 66 that gradually decreases in diameter toward the extraction portion is formed above the uppermost convex wall surface 6221. The neck portion 66 is a portion that connects the extraction portion and the body portion 62. The dispensing portion is closed by the lid member 65. The lid member 65 is not particularly limited, but a cap portion is used in the illustrated example.
The shape of the trunk | drum 62 is a substantially cylindrical shape, Preferably, it is a substantially cylindrical shape.

The material of the container 6 is not specifically limited, What was shown in 2nd Embodiment can be used suitably.
As shown in FIG. 14, the thickness at the top of the convex wall surfaces 6221, 6222, 6223, 6224, 6225 is larger than the thickness at the bottom of the concave wall surfaces 6211, 6212, 6213, respectively. For this reason, the intensity | strength of the top part of a convex wall surface is larger than the intensity | strength of the bottom part of a concave wall surface, respectively.
The thickness of the top part of the convex wall surfaces 6221, 6222, 6223, 6224, 6225 and the thickness of the bottom part of the concave wall surfaces 6211, 6212, 6213 can be set as appropriate.
The thickness of the top of the convex wall surface is more than 1 time and less than 4 times, preferably 1.1 to 3.5 times the thickness of the bottom surface of the concave wall surface.

15 and 16, the container 14 with a cylindrical label of the present embodiment is a stretch label attached to the bottle-shaped container 6 and at least the outer surface of the body 62 including the upper and lower convex wall surfaces and the concave wall surface. 1. Preferably, the stretch label 1 is mounted such that the upper end thereof is hooked on a part of the neck portion 66. The lower end of the stretch label 1 is positioned slightly above the lower end of the body portion 62 of the container 6. However, the lower end of the stretch label 1 may be attached so as to coincide with the lower end of the body portion 62, or the lower end of the stretch label 1 may be attached so as to hang on the peripheral end portion of the bottom surface portion 61. Good.
The stretch label 1 attached to the body portion 62 is in close contact with all the convex wall surfaces 6221, 6222, 6223, 6224, 6225 and the concave wall surfaces 6211, 6213. In the intermediate region where the convex wall surface and the concave wall surface are alternately formed, the stretch label 1 is in close contact with the convex wall surface 6223, but is not in close contact with the concave wall surface 6212.

The circumferential length of the intermediate region (region in which the convex wall surface 6223 and the concave wall surface 6212 are alternately formed) of the trunk portion 62 to which the stretch label 1 is attached is the circumference of the intermediate region before the stretch label 1 is attached. It is slightly smaller than the length.
The circumference of the intermediate region before the stretch label 1 is attached is measured by measuring the length of the yarn before winding the stretch label 1 by winding a non-stretchable yarn once in the circumferential direction of the intermediate region. Is obtained. The circumferential length of the intermediate region of the body portion 62 to which the stretch label 1 is attached is wound around the yarn in the circumferential direction at the same position as described above, the length of the yarn is measured, and the thickness of the stretch label 1 is determined from the measured value. Obtained by subtracting minutes.

  As in the second embodiment, the cylindrical label-equipped container 14 of the present embodiment also has the body 62 of the container 6 partially formed by the action of the convex wall surface 6221,... And the concave wall surface 6211,. Therefore, the stretch label 1 can be prevented from being depressed, or the stretch label 1 can be prevented from being displaced from the initial mounting position. Further, since the concave wall surface is reinforced by the stretch label 1, it is difficult to be deformed during use.

In the above-described container 14 with a cylindrical label, the stretch label 1 is attached from a part of the neck 66 of the container 6 to the convex wall surface 6225, but the attachment of the stretch label 1 is not limited to this.
For example, as illustrated in FIG. 17, the stretch label 1 may be attached from the convex wall surface 6222 to the convex wall surface 6224. In this case, it is preferable that the stretch label 1 is attached to the body portion 62 so that the upper end of the stretch label 1 is positioned on the upper concave wall surface 6211 and the lower end of the stretch label 1 is hooked on the concave wall surface 6213. In the tubular label-equipped container 14 of such a preferable aspect, the upper end and the lower end of the stretch label 1 are difficult to be displaced upward and downward.

[Other Embodiments]
In the container with a cylindrical label of the second embodiment, since the lower part of the stretch label is bent at the peripheral end of the bottom part of the container, the bent part is engaged with the container, and the stretch label is located above the container. It can be surely prevented from coming out. However, the container with a cylindrical label of the present invention is not limited to the case where the lower part of the stretch label is bent at the peripheral end of the bottom part of the container, and the lower part of the stretch label is attached to the bottom part. It does not have to be.

Furthermore, although the container used for the container with a cylindrical label of each of the above embodiments has a straight outer shape of the convex wall surface and the concave wall surface viewed from the front, it is not limited to this, and the outer shape of the convex wall surface and the concave wall surface However, an arc shape bulging outward may be used.
In addition, the container with a cylindrical label of the present invention is not limited to the above embodiments, and various design changes can be made within the range intended by the present invention.

DESCRIPTION OF SYMBOLS 1 Stretch label 2 Base material 21 Self-stretch film 3, 4, 5, 6 Container 31,41,51,61 Container bottom part 32,42,52,62 Container trunk part 321,421,5211,5212,6211 , 6212, 6213 Concave wall 322, 4221, 4222, 5221, 5222, 5223, 6221, 6222, 6223, 6224, 6225 Convex wall 11, 11, 13, 14 Container with cylindrical label

Claims (6)

A container having a concave wall surface recessed inward and a body portion formed with a convex wall surface protruding outward from the concave wall surface, and a cylindrical stretch label having a self-stretchable film and attached to the container And having
The strength of the top of the convex wall is greater than the strength of the bottom of the concave wall , and the thickness of the top of the convex wall is greater than the thickness of the bottom of the concave wall,
A container with a cylindrical label, wherein the stretch label is in close contact with the body including the convex wall surface and the concave wall surface by self-shrinking force. The self-stretchable film, an extensible stretch ratio 1.60 times or more in the circumferential direction, and the moment distortion after stretching to 1.60 times in the extension rate 50 mm / min in a circumferential direction following 13% film The container with a cylindrical label according to claim 1, wherein The container with a cylindrical label according to claim 1 or 2, wherein the stretch label is in close contact with a trunk including a boundary between the convex wall surface and the concave wall surface . The lower end opening of the trunk is closed by the bottom part,
The container with a cylindrical label according to any one of claims 1 to 3, wherein a circumferential length of the concave wall surface decreases toward the bottom surface. The convex wall surface of the trunk portion is formed at least three places above and below at intervals, and the concave wall surface of the trunk portion is formed between the convex wall surfaces adjacent to the top and bottom,
The circumferential length of the top part of the intermediate convex wall surface of the body portion to which the stretch label is attached is smaller than the peripheral length of the top part of the convex wall surface that exists above and below the intermediate convex wall surface. A container with a cylindrical label according to crab.   The container with a cylindrical label according to any one of claims 1 to 5, wherein a length in a vertical direction of the trunk portion to which the stretch label is attached is larger than a length in a vertical direction of the trunk portion before the stretch label is attached. .

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