JP5554576B2 - In-mold label - Google Patents

Description

  The present invention relates to an in-mold label that labels food containers and the like.

  An in-mold label forming method is known as a method for labeling cup-shaped containers used for food packaging and the like. For in-mold label molding, for example, as described in JP-A-8-132477 (Patent Document 1), a label having a heat seal layer is set in advance in a mold at the time of blow or injection molding. This is a molding method in which labeling is performed simultaneously with molding by fusing the heat seal layer of the label to the surface of the molded product with the heat of the resin.

  By using this in-mold label, various high-quality patterns and colors can be easily attached to the container, and it is widely used as decoration and labeling means for various containers.

  However, since the in-mold label fuses the heat seal layer of the label to the surface of the molded container by heat as described above, if the surface of the target container has irregularities, it does not adhere well, and wrinkles and bubbles Or in the worst case, the film may be damaged. In particular, if there is a step in the container, it becomes difficult to absorb the deformation due to the step only by the flexibility of the film because the range of unevenness extends to the entire circumference of the container, wrinkles occur in the step part, and the commercial value is impaired, In many cases, it was not possible to use in reality.

  JP-A-2003-170920 (Patent Document 2) aims to provide an in-mold container that can increase the temperature at which the flange is deformed by heat and can improve the working efficiency in the heating operation. An in-mold container having a bottomed cylindrical shape having an opening and a label closely adhered to an outer surface of a container body provided with a flange extending outward along the opening, wherein a pair of molds are clamped A cavity corresponding to the container body is formed in the pair of molds, and the label inserted into the cavity is closely attached to the outer peripheral side of the cavity so as to be positioned on the outer surface side of the container body, and one side of the label After the edge is placed in the cavity for molding the flange, it is molded by pouring molten resin into the cavity, and one side edge of the label is molten resin A notch or a half cut extending from the edge of the one side edge toward the inside of the label is formed at one side edge of the label so as to be bent outward by the mold to be placed in the cavity forming the flange. An in-mold container is disclosed.

In this document, since one side edge portion of the label is bent outward by molten resin pressure and placed in the cavity for molding the flange, a notch extending from the edge of one side edge of the label toward the inside of the label or Half-cuts are formed, but this is for placing a heat-resistant label on almost the entire back surface of the flange, not for preventing aesthetic defects such as wrinkles. In other words, this document states that “a label 13 is closely formed on the entire back surface of the flange 12c of the container body 12 made of heat-resistant polypropylene resin, and the label 13 is provided with PET having a physical property of a heat-resistant temperature of 240 ° C. Therefore, unlike the conventional case where the flange 12c is formed only from the heat-resistant polypropylene resin, the temperature at which the flange 12c is deformed can be increased from the heat-resistant temperature of 130 ° C. of the heat-resistant polypropylene resin ”, and the heat resistance of the flange is improved. It turns out that it is the purpose. Therefore, no consideration is given to application to structures other than flanges. Moreover, since the heat resistance as described above is required for the label material, the label material that can be used is limited.

  Japanese Patent Application Laid-Open No. 2006-123446 (Patent Document 3) describes that a label is wrinkled when labeling a curved portion of a lower half of a peripheral wall of a cup-shaped container, and the appearance of the label deteriorates. In order to prevent it from sticking out to the outside of the label through the label, the label portion excluding the base portion can be separated and separated into a plurality of strips by perforating lines, and can be attached without causing wrinkles corresponding to the curved surface of the container body An in-mold label is disclosed.

  However, the technique disclosed in this document is directed to the curved portion of the lower half of the peripheral wall of the cup-shaped container, and no consideration is given to the step structure that changes the cross-sectional area in the side barrel. Not. In addition, the paragraph 0029 of this document states that “the label 20 is constricted to a small diameter at the lower end by overlapping both side portions of the adjacent strip-shaped pieces 28, and the container body-corresponding surface portion 44 is formed with these multiple strip-shaped pieces. The small inner diameter portion 50 is covered. "And it can be seen that the strips are overlapped. For this reason, the overlapping portion of each strip-like piece appears in the appearance, which becomes an aesthetic defect and greatly impairs the appearance. Further, as shown in FIG. 9 of the same document, a V-shaped notch that gradually becomes wider from the closed end portion 26a near the base portion 22 toward the open end portion 26b that opens at the upper edge or lower edge of the label 20 was formed. Even in such a case, the polymerization portion of each strip 28 is reduced, but the polymerization portion is not eliminated.

JP-A-8-132477 JP 2003-170920 A JP 2006-123446 A

  The problem to be solved by the present invention is to provide an in-mold label that can be neatly attached to a container having a stepped portion without causing aesthetic defects such as wrinkles, bubbles, and overlapping portions.

The present invention has the following configuration in order to solve the above problems.
(1) having a continuous region where members continuously exist in the circumferential direction of the container to be mounted, and a discontinuous region where portions where members exist and non-existing portions appear alternately in the circumferential direction;
The continuous region and the discontinuous region are integrally formed with a boundary portion defined in a straight line or a curve in the circumferential direction,
The container has a flange and a side barrel formed in the opening,
An in-mold label in which the boundary portion and the discontinuous region or the discontinuous region are arranged in a stepped portion formed only on the container side body portion.
(2) The in-mold label according to (1), wherein the discontinuous region is formed by a convex portion in which a member draws a curve and protrudes in a surface direction from the boundary portion.
(3) The in-mold label according to (1), wherein the discontinuous region is formed by a cut-out concave portion.
(4) The in-mold label according to (3), wherein a base portion of the recess is formed in a V shape.
(5) The in-mold label according to any one of (1) to (4), wherein the stepped portion is a portion where a cross-sectional area of a cross section in the container-side body portion changes.
(6) The in-mold label according to (5), wherein the cross-sectional area changes by 0.5 to 30% with a stepped portion as a boundary.
(7) The said container is an in-mold label in any one of said (1)-(6) which a side trunk | drum is cylindrical or conical and has a bottom part.

  The in-mold label of the present invention has an advantage that it can be applied neatly without causing defects such as wrinkles even when used in a container having a stepped portion. In addition, there is an effect that the shape becomes a part of the design of the container and an aesthetic appearance is easily formed.

FIG. 1 is a plan view showing an embodiment of an in-mold label. Example 1 FIG. 2 is a plan view showing another embodiment of the in-mold label. (Example 2) FIG. 3 is a plan view showing another embodiment of the in-mold label. (Example 3) FIG. 4 is a plan view showing another embodiment of the in-mold label. Example 4 FIG. 5 is a front view showing an example of a container in which an in-mold label is used. (Example 5) FIG. 6 is a plan view showing an example of a container in which an in-mold label is used. (Example 5) FIG. 7 is a perspective view showing an embodiment of a container with an in-mold label. (Example 5)

  The in-mold label 1 of the present invention includes, for example, a continuous region 2 in which members are continuously present in the circumferential direction of a container to be mounted, as shown in FIG. And the discontinuous regions 3 appearing alternately, and the continuous region 2 and the discontinuous region 3 are integrally formed with a boundary 4 defined linearly or curvedly in the circumferential direction as a boundary, The boundary portion 4 or the discontinuous region 3 is arranged at the step portion of the trunk portion.

  In this way, in the portion corresponding to the stepped portion of the container-side body portion to be mounted, the discontinuous region where the portion where the member exists in the circumferential direction and the portion where the member does not exist appear alternately or the boundary portion between the discontinuous region and the continuous region By arranging, deformation caused in the stepped portion is absorbed in the discontinuous region, and aesthetic defects such as wrinkles are less likely to occur.

  The in-mold label of the present invention has a continuous region and a discontinuous region, and the continuous region and the discontinuous region are integrally formed with a boundary portion as a boundary. The continuous region has the same configuration as that of a normal in-mold label and is formed so as to cover the container-side body part. Further, the continuous region usually covers many portions of the container-side body and functions as a label body or a base for forming a discontinuous region. The continuous region is arranged on either the upper side or the lower side of the in-mold label formed and arranged on the container-side trunk.

  The discontinuous region is a region where a region where the label member exists and a region where the label member does not exist appear alternately on the circumferential surface of the container. In the state where the label member is unfolded, a region where the label member exists and a region where the label member does not exist alternately appear in a certain direction of the label plane, particularly in the direction of the longitudinal straight line or curve. There are no particular limitations on the size and shape of the region where the label member that appears in the specific direction of the circumferential surface of the container or the developed label surface exists and the region where the label member does not exist, and various shapes and sizes can be set. it can. Specifically, the region where the label member exists / not the region may have a triangular or square shape, or may have a wave shape or a sine wave shape in which both change along a gentle curve. Among them, a triangular shape or a wavy shape is preferable, and a wavy shape or a sine wave shape that changes in a gentle curve is particularly preferable.

  When the area where the label member exists / the area where the label member does not exist is close to a square shape, the ability to absorb the deformation of the stepped portion may be reduced, and defects may easily occur. In such a case, it is preferable to form the base portion of the region where the label member does not exist, that is, the boundary side in a V shape so that the label member in the discontinuous region is more easily deformed.

  When the area where the label member exists / the area where the label member does not have a wave-like or sinusoidal shape that changes with a gentle curve, the curve at the tip (peak) of the area where the label member exists preferably has a curvature of about 5-40. A curvature of about 1 to 20 at the tip (valley) of the region where no member exists is preferable.

  The continuous area and the discontinuous area are integrally formed. That is, the region where the discontinuous region member exists is an extension of the continuous region member. Accordingly, the region where the label member exists is formed as a convex shape or a tongue-like shape protruding in the surface direction from the continuous region, or conversely formed by cutting or removing a part of the member forming the continuous region. be able to. Note that the boundary portion between the discontinuous region and the continuous region is defined in a straight line or a curved line so as to extend in the circumferential direction of the container corresponding to the normal stepped portion. That is, the position of the boundary part of the label member mounted on the container is formed so as to be a fixed distance from the opening part or the bottom part in the side body part. The boundary portion is a design concept for defining the boundary between the continuous region and the discontinuous region, and does not have to appear clearly as a boundary portion on the label member. Further, when the label member is expanded, the label member becomes linear or curved according to the expanded shape.

  The material constituting the label member is not particularly limited, and various known materials can be used. Moreover, although the film material which consists of a single layer may be sufficient, it is generally comprised as a laminated body of several film materials or thin films, such as a base material, a printing layer, and a contact bonding layer and a barrier layer as needed.

  The base material is a layer that serves as a support for the in-mold label, and any known material may be used as long as it has physical properties such as heat-shrink characteristics necessary for the in-mold label, but a thermoplastic resin is generally used. . By using the thermoplastic resin, the characteristics excellent in the shape following property to the container can be obtained.

  Examples of the thermoplastic resin include high density polyethylene, medium density polyethylene, low density polyethylene, propylene resin, polyolefin resin, ethylene / vinyl acetate copolymer, ethylene / acrylic acid copolymer, polyethylene terephthalate (PET), and the like. Examples of the copolymer include thermoplastic polyester resins such as polybutylene terephthalate and aliphatic polyester, polycarbonate, and polystyrene.

  Among these, polyolefin resin is preferable. Specifically, homopolymers of ethylene, propylene, butylene, butadiene, olefins, copolymers of two or more of these olefins, and styrene, α-methylstyrene, vinyl acetate, vinyl alcohol, acrylic Examples thereof include copolymers with functional group-containing monomers such as acid derivatives and vinyl ethers. As the polyolefin-based resin, a propylene-based resin is preferable in terms of chemical resistance, cost, and the like.

  Examples of the polypropylene film include a biaxially stretched polypropylene film (OPP) and an unstretched polypropylene film (CPP).

  As the thermal adhesive layer provided as necessary, a hot melt adhesive containing an ethylene-vinyl acetate copolymer or the like, a heat seal agent is applied, or a polyolefin resin is acrylic acid, methacrylic acid, poly (meth) acrylic A resin, a thermoplastic polyester resin, or a thermoplastic polyamide resin may be laminated.

  The printing layer is provided on the base material or the base layer provided on the base material by a known method. A high quality design is imparted to the container by the colors, patterns, etc. printed by the printing layer. The printed layer is usually formed on the back side of the substrate, but may be formed on the front side or further provided with a protective layer.

  Furthermore, a barrier layer or a light shielding layer may be formed by providing a metal stay or depositing a metal. Also, paper, carbon material, or various resin materials other than the above can be combined.

  The shape of the label member is generally similar to a shape in which the side surface of the container to be mounted is developed, and may be a horizontally long rectangular shape, but may be formed in a fan shape. By making it into a fan shape, when it is closed so that both side edges of the label are aligned, that is, when it is rolled up, it becomes a conical shape that can be approximated by the shape of the container, and defects such as bubbles, wrinkles, breakage are less likely to occur Become. The label member does not necessarily need to cover the entire side portion of the container, and the vicinity of the upper and lower end portions may be opened, or an opening or a slit may be provided in the intermediate portion or a part of the circumferential direction.

  The container in which the in-mold label of the present invention is used can be formed of polyethylene terephthalate, polyethylene, polypropylene, polystyrene or the like. As a method for forming the container, it can be produced by an injection molding method, a blow molding method or the like. In particular, a method is preferred in which the container is molded using the injection molding method and at the same time the label is integrally formed on the side surface of the container.

  As the shape of the container, it can be applied to various shapes such as a cylindrical shape, a conical shape, a cylindrical shape obtained by deforming these into a square shape, a cup shape having a bottom and an opening, a bottle shape, a box shape, and the like. Among them, a cup-shaped container having a bottom and an opening in a cylindrical shape, a conical shape, or a cylindrical shape obtained by deforming these into a square shape is preferable. Such a cup-shaped container has, for example, a flange structure for adhering and heat-bonding a lid material to the opening, and a leg structure called a thread tie if necessary, in addition to the basic shape.

Except for the stepped portion, the container-side body portion needs to have a longitudinal cross-sectional shape that is somewhat straight in the region where the label is attached, and preferably has no curved or curved surface. Defects such as wrinkles are more likely to occur when the side barrel is too curved. The average curvature of the longitudinal section of the side trunk is 1/2 to 1/2000, preferably 1/10 to 1/300. In addition, a longitudinal cross section is a cross section in the direction orthogonal to the plane of the container opening.

  In this invention, it has a level | step-difference part in a container side trunk | drum. The step portion is a portion where the area of the container cross section suddenly expands or contracts with the step portion interposed therebetween, and is usually formed uniformly in the circumferential direction of the container. In addition to the case where the step is provided for the reasons of the design of the container, when the containers are stacked, the outer wall and the inner wall of the upper and lower containers are prevented from coming into close contact with each other, In some cases, it is unavoidably provided for reasons such as manufacturing, transporting, and managing the container and the contents stored in the container.

  The rate of change of the cross-sectional area at the step portion is usually about 0.5 to 30%, particularly about 1 to 10%. If the rate of change is small, the necessity of applying the present invention is reduced, and if it is too large, it is difficult to obtain the effects of the present invention. The size of the step is usually about 0.5 to 10 mm, preferably 1 to 6 mm, although there is a balance with the cross-sectional area.

  As a manufacturing method of an in-mold label type plastic container, a conventional in-mold label type manufacturing method can be used as it is. In general, in-mold label molding is performed at the same time as molding by pre-setting the label on the mold during blow or injection molding and fusing the heat seal layer of the label to the upper surface of the molded product with the heat of the resin during molding. Labeling can be performed.

  FIG. 1 is a plan view showing a first embodiment of the in-mold label of the present invention. In the figure, an in-mold label 1 is a continuous area 2 in which a curved laterally long quadrangle having a concave and convex shape on the upper part is formed in a substantially fan shape, and members are continuously present in a longitudinal direction that is circumferential when mounted on a container. And discontinuous regions 3 formed so that locations where members exist and locations where members do not exist alternately appear. In addition, since this label is fan-shaped when it is unfolded, the longitudinal direction is also curved according to the outer shape of the fan.

  The continuous region 2 is the same as a normal in-mold label, and a conical tube is formed by closing both ends 11a and 11b together. The discontinuous region 3 continuously formed from the continuous region 2 includes a tongue-shaped convex portion 31 projecting from the continuous region 2 in the surface direction and a concave portion 32 formed between the convex portions 31. That is, since a member exists in the convex portion 31 and no member exists in the concave portion 32, the region where the member exists and the region where the member does not exist appear alternately due to the uneven structure of the discontinuous region 3. The width of the discontinuous region is not particularly limited, but at least a width that can cover the stepped portion is necessary, and it is preferable that the width be at least 2 mm before and after the stepped portion. The upper limit is determined mainly from the viewpoint of appearance.

  In this example, the convex part 31 forms a gradual curve and forms a mountain-shaped or sinusoidal protruding part. Further, the concave portion 32 also forms a valley-like or sine-wave-like hollow portion with a gentle curve. The curvature R1 of the convex portion 31 and the curvature R2 of the concave portion 32 may be the same or different. In particular, by increasing the curvature R1 of the convex portion 31 and decreasing the curvature R2 of the concave portion 32, the labeling region can be increased, and an aesthetically preferable result can be obtained. R1: R2 is preferably about 4: 3 to 10: 1.

  In the continuous region 2, the corner 12 on the opposite side to the side where the discontinuous region 3 is formed at both ends is rounded. For example, as described in Japanese Patent Application Laid-Open No. 8-132477, this portion is rounded so that the corners come into contact with the bottom surface of the female mold and rise, and the outer surface of the label and the peripheral wall of the female mold Since resin may flow in between, this is prevented by rounding the corners.

  In use, the boundary portion 4 between the continuous region 2 and the discontinuous region 3 is arranged on the lower end of the stepped portion of the container, that is, on the side where the container cross-sectional area is small, and is labeled by a known method. As a result, the discontinuous region 3 covers the step portion, and the deformation due to the step portion is absorbed by the region 34 where no member is present, so that the discontinuous region 3 is clearly labeled without causing a defect.

  FIG. 2 is a plan view showing a second embodiment of the in-mold label of the present invention. In the figure, the in-mold label 1 has a substantially fan-shaped shape with a curved horizontally long quadrilateral having irregularities on the upper portion as in FIG. 1, and has a continuous region 2 and a discontinuous region 3.

  In this example, curvature R1, R2 of the convex part 31 and the recessed part 32 of the discontinuous area | region 3 is substantially equal. For this reason, although the area of the convex part 31 reduces, as a design, there exists utility value in points, such as consistency with the shape of a container. Moreover, although the number of the convex parts 31 is the same as FIG. 1, the position has shifted | deviated, the recessed part 32 exists in the center, and the convex part 31 divided | segmented into the both ends is arrange | positioned. Other configurations are the same as those of the first embodiment, and the same components are denoted by the same reference numerals and description thereof is omitted.

  FIG. 3 is a plan view showing a third embodiment of the in-mold label of the present invention. In the figure, the in-mold label 101 is a curved horizontally long rectangle with a notch in the upper part, has a substantially sector shape, and has a continuous region 102 and a discontinuous region 103.

  In this example, the discontinuous region 103 formed integrally with the continuous region 102 includes a substantially square convex portion 131 projecting from the continuous region 2 in the surface direction, and a notched concave portion 132 formed between the convex portions 131. It has become. That is, the discontinuous region 103 is formed by providing a cutout-shaped recess 132 in a portion corresponding to the discontinuous region 103, having the same outer shape as the conventional in-mold label including the discontinuous region 103.

  The width of the notched recess 132 is not particularly limited, and may be set to an appropriate size as necessary. Specifically, although it depends on the size of the container, it is about 0.5 to 30 mm, preferably about 1 to 10 mm. If the width is too small, it becomes easy to absorb the deformation due to the level difference, but there arises a problem in printing design restriction, and if it is too large, it becomes an aesthetic problem.

The in-mold label of the third embodiment has a merit that a region that can be labeled can be enlarged as compared with the first embodiment, but has a demerit that an appearance that is not very aesthetically pleasing can be formed. Also, the size of the stepped portion that can be handled is limited to a size smaller than that of the first embodiment, and there is a problem that defects such as wrinkles are likely to occur. Other configurations are the same as those of the first embodiment, and the description of the same components is omitted.

  FIG. 4 is a plan view showing a fourth embodiment of the in-mold label of the present invention. In the figure, the in-mold label 101 is a curved horizontally long rectangle having a notch at the top as in FIG. 3, has a substantially sector shape, and has a continuous region 102 and a discontinuous region 103.

  The discontinuous region 103 formed integrally with the continuous region 102 is substantially the same as that of the third embodiment, but the number of the concave portions 132 is increased, and the base portion 133 of the concave portion 132 is branched in a V shape. That is, when viewed from the opening side of the concave portion 132, the linear portion is formed in a long Y shape. In this manner, by forming the base portion 133 of the concave portion 132 in a V shape, the applicable range with respect to the shape of the container is widened, and it is possible to cope with a step larger than that of the third embodiment. Moreover, it becomes easy to adapt to a deformed step. On the other hand, since a Y-shaped cut appears in the appearance, an operation to remove the adverse effect of the recess 132 may be required, such as devising a design to be printed on the label.

  Although it does not specifically limit as an opening angle of V shape V of the recessed part 132, Preferably it is 30-150 degrees, More preferably, it is 60-120 degrees. The V-shaped opening is normally distributed evenly with respect to the straight portion of the recess, but may be biased within a range of 10 ° or less. The depth of the V-shaped notch is not particularly limited, and may be an appropriate depth as required. Specifically, it is about 1/10 to 6/10 of the depth of the recess 132 although it depends on the size of the stepped portion and the like.

  FIGS. 5 to 7 show a fifth embodiment of the present invention, FIG. 5 is a front view of a half-section showing a specific example of a container, FIG. 6 is a plan view thereof, and FIG. It is an external appearance perspective view which shows the state which attached the label.

  5 and 6, the container 5 has an upper opening 6, a side body 5, and a bottom 7. The side body 5 has a cylindrical shape that gradually increases in diameter toward the top in a conical shape. The side body 5 extends from the lower end 56 connected to the bottom 7 to the step 51 in a substantially straight line, and the step 7 And an upper body portion 53 extending from the opening 6 to the opening 6. Further, the cross-sectional area of the lower-side body portion 52 and the upper-side body portion 53 changes abruptly with the step portion 51 as a boundary. In the case of the illustrated example, the cross-sectional area immediately adjacent to the stepped portion is changed by about 1 to 6% in the upper side body portion 53 with respect to the lower side body portion 52.

A flange 55 connected to the side body 5 is formed in the opening 6 of the container 10. The flange 55 is formed around the opening 6 so as to extend to a certain width from the opening 6 toward the outside, and a sealing lid member can be bonded or fused to this portion. Bottom 7 of the container, from the reasons such as to have a strength in this example, is curved in a container inside direction, it may be formed so that the cross section is linear. Further, a cylindrical thread thread 57 is formed below the lower end portion 56 at a portion where the lower end portion 56 and the bottom portion 7 of the side body portion 5 are connected to function as a leg portion. The yarn twist 57 is provided mainly from the viewpoint of appearance.

  The container 10 having such a shape was molded using polypropylene. At that time, labeling was performed using an in-mold label having a shape as shown in FIG. The material of the in-mold label was a structure in which two biaxially stretched polypropylene films (OPP) were laminated, and a printed layer was formed by printing a pattern on the back side of the front OPP film. In addition, the container step portion is arranged in the in-mold label discontinuous region and in the vicinity of the middle between the boundary portion and the end portion (upper end) of the discontinuous region. The container was labeled at the same time as molding, and an in-mold label container having an appearance as shown in FIG. 5 was completed.

  The obtained container was visually observed, but defects such as wrinkles were not observed. Moreover, it was found that the shape of the label recalls a floral pattern and is advantageous in appearance. Further, the in-mold label container is disposed in the same manner as described above so that the boundary portion is directly below the step portion, that is, the one having a smaller cross-sectional area of the container, and the distance from the step portion is 0 mm, 1 mm, and 2 mm. Created. When the label of the obtained container was evaluated by visual observation in the same manner as described above, no defect was confirmed in any of the samples.

  The in-mold label of the present invention and the container with the same are used for food packaging containers, beverage containers, pharmaceutical containers, sanitary containers, etc., cup-shaped containers, bottle-shaped containers, electrical products such as batteries, etc. It can be widely used as an in-mold label for decorating the appearance of, and can be suitably used particularly for food containers.

DESCRIPTION OF SYMBOLS 1 In-mold label 2 Continuous area | region 3 Discontinuous area | region 5 Side trunk | drum 6 Opening part 7 Bottom part 10 Container 31 Convex part 32 Concave part 51 Step part 52 Lower side trunk | drum 53 Upper side trunk | drum 55 Flange 56 Lower end part 57 Yarn binding 101 In-mold label 102 Continuous region 103 Discontinuous region 105 Side trunk portion 106 Opening portion 107 Bottom portion

Claims (7)

A continuous region where the members are continuously present in the circumferential direction of the container to be mounted, and a discontinuous region where the portions where the members are present in the circumferential direction and the portions where the members are not present alternately appear,
The continuous region and the discontinuous region are integrally formed with a boundary portion defined in a straight line or a curve in the circumferential direction,
The container has a flange and a side barrel formed in the opening,
An in-mold label in which the boundary portion and the discontinuous region or the discontinuous region are arranged in a stepped portion formed only on the container side body portion.   The discontinuous region is an in-mold label according to claim 1, wherein the discontinuous region is formed by a convex portion projecting in a surface direction from the boundary portion in a curved line.   The in-mold label according to claim 1, wherein the discontinuous region is formed by a notched recess.   The in-mold label according to claim 3, wherein a base portion of the concave portion is formed in a V shape.   The in-mold label according to any one of claims 1 to 4, wherein the step portion is a portion where a cross-sectional area of a cross section of the container side body portion changes.   The in-mold label according to claim 5, wherein the cross-sectional area changes by 0.5 to 30% with a step portion as a boundary.   The in-mold label according to any one of claims 1 to 6, wherein the container has a cylindrical body or a conical shape and a bottom.

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