JP5974287B2 - Shrink label container and shrink label - Google Patents

Description

  The present invention relates to a container with a shrink label in which a shrink label is attached to the container, and the shrink label.

  When a cylindrical shrink label is heat shrunk and attached to a container, in order to prevent the shrink label from being displaced in the axial direction at the time of the heat shrink, a heat sensitive adhesive is applied to a predetermined portion of the inner surface of the shrink label in advance. There are things to leave. When the heat-sensitive adhesive is activated at an early stage of the heat shrinking process, the shrink label is adhered to the container, and the shrink label is attached to a predetermined position of the container.

  However, when the present inventors conducted a test in which the contents were put into a container equipped with a shrink label and frozen, the shrink label fell off from the container or the shrink label was displaced in the circumferential direction with respect to the container. It became clear that there was a case.

JP 2002-46715 A JP-A-7-156930 Japanese Patent No. 3603220

  Therefore, the present invention has been made in view of the above-described conventional problems, and prevents shrinkage of the position of the shrink label during heat shrinkage, and a shrink label-attached container and shrink label that can maintain the state of adhesion of the shrink label even when frozen. It is an issue to provide.

  The present invention has been made to solve the above-mentioned problems, and the container with a shrink label according to the present invention has a shrink label attached to the container by heat shrinkage, and a predetermined portion of the shrink label is a heat-sensitive adhesive. A container with a shrink label adhered to the container by the first adhesive part made of the first heat-sensitive adhesive, and the first heat-sensitive adhesive, as an adhesive part bonding the shrink label to the container And a second adhesive portion made of a different second heat-sensitive adhesive, wherein the first heat-sensitive adhesive is activated at a temperature relatively lower than that of the second heat-sensitive adhesive. The heat sensitive adhesive is characterized in that the rate of decrease in the adhesive strength at the freezing temperature relative to the adhesive strength at normal temperature is smaller than that of the first heat sensitive adhesive. In the present invention, the normal temperature is 15 ° C. to 25 ° C., and the freezing temperature is 0 ° C. or less. However, as an actual measurement, a case where the normal temperature is stored at a normal temperature and a case where the freezing is stored. Is compared with the case of measuring at the same room temperature, and the reduction rate is obtained. The rate of decrease is determined by {(normal temperature adhesive strength) − (freezing temperature adhesive strength)} / (normal temperature adhesive strength) * 100 (%).

  Conventionally, when applying a heat-sensitive adhesive, one type of heat-sensitive adhesive has been applied (see Patent Documents 1 to 3 above). However, with one kind of heat sensitive adhesive, the activation temperature is low, so it is very effective in preventing misalignment during shrinkage of the shrink label, but at the freezing temperature, the adhesive strength decreases, or the freezing temperature However, although the adhesive strength does not decrease so much, since the activation temperature is relatively high, the effect of preventing the displacement of the shrink label during thermal contraction is relatively small. On the other hand, in the container with a shrink label according to the present invention, since at least two kinds of heat-sensitive adhesives are used, the effect of preventing misalignment at the time of thermal shrinkage of the shrink label and the adhesive force at the freezing temperature. Two points of prevention of deficiency can be made compatible. That is, since the first adhesive portion made of the first heat-sensitive adhesive that is activated at a temperature relatively lower than that of the second heat-sensitive adhesive is provided, the first heat shrinking process of the shrink label is performed at a relatively early stage. One adhesive part is activated and the shrink label is bonded to the container without being displaced. Moreover, since the second adhesive part which consists of a 2nd heat sensitive adhesive with the decreasing rate of the adhesive strength of freezing temperature with respect to the adhesive strength of normal temperature is smaller than a 1st heat sensitive adhesive, this shrink label container If the adhesive strength of the first adhesive part decreases as the temperature drops from room temperature to the freezing temperature, the second adhesive part is provided separately from the first adhesive part, so the whole The adhesive state of the shrink label is reliably maintained without causing insufficient adhesive force.

  In particular, when the container has a bottomed shape with an opening at the upper end and a shrink label is attached to the side wall portion thereof, and the side wall portion of the container has a shape that increases toward the upper side as a whole, the first adhesive portion is the shrink label. Preferably, the second adhesive portion is formed closer to the lower end side of the shrink label than the first adhesive portion. If the side wall of the container has a shape that increases toward the upper side as a whole, the shrink label tends to be displaced in the axial direction toward the lower part of the side wall of the container, particularly in the axial direction during heat shrinkage. Easily misaligned. Therefore, by forming the first adhesive portion that is activated at a relatively low temperature in the vicinity of the upper end of the shrink label, the vicinity of the upper end of the shrink label is adhered to the side wall portion of the container at an early stage to prevent the displacement. On the other hand, the second adhesive portion is formed on the lower end side of the shrink label with respect to the first adhesive portion, so that the first and second adhesive portions are formed in different portions in the axial direction of the shrink label. Therefore, as compared with the case where both adhesive portions are formed in the same part in the axial direction of the shrink label, the layout of both adhesive portions becomes easier, blocking is less likely to occur, and the total adhesive area is increased.

  Moreover, it is preferable that the second adhesive portion extends in the axial direction of the shrink label and has a larger area than the first adhesive portion. The second heat-sensitive adhesive constituting the second adhesive portion has a characteristic that it is relatively less likely to cause blocking than the first heat-sensitive adhesive constituting the first adhesive portion. By making the second adhesive part a relatively large area by extending the second adhesive portion in the axial direction of the shrink label, it is possible to prevent the expansion failure from the flat state of the shrink label, and at the freezing temperature An even more reliable bonding state can be obtained.

  The shrink label according to the present invention is a shrink label in which a heat-sensitive adhesive is applied to the inner surface, and the first adhesive portion made of the first heat-sensitive adhesive is different from the first heat-sensitive adhesive. A second adhesive portion made of a second heat-sensitive adhesive is formed on the inner surface, the first heat-sensitive adhesive is activated at a relatively lower temperature than the second heat-sensitive adhesive, The second heat-sensitive adhesive is characterized in that the rate of decrease in the adhesive strength at the freezing temperature relative to the adhesive strength at room temperature is smaller than that of the first heat-sensitive adhesive.

  As described above, in the container with a shrink label and the shrink label according to the present invention, the first adhesive portion made of the first heat-sensitive adhesive that is activated at a temperature relatively lower than that of the second heat-sensitive adhesive. And a second adhesive portion made of a second heat-sensitive adhesive having a lowering rate of the adhesive strength at the freezing temperature than that of the first heat-sensitive adhesive with respect to the adhesive strength at normal temperature. The position of the shrink label is prevented from being displaced, and the shrink label is adhered even when frozen.

Sectional drawing which shows the container with a shrink label in one Embodiment of this invention. The figure which looked at the expansion | deployment state of the shrink label used for the container with the shrink label from the inner surface side. Sectional drawing which shows the manufacturing process of the container with the said shrink label.

  Hereinafter, a container with a shrink label according to an embodiment of the present invention will be described with reference to FIGS. The container with a shrink label shown in FIG. 1 is mainly used for frozen food, and a cylindrical shrink label 2 is attached to the side wall 11 of the container 1.

  The container 1 has a so-called cup shape with a bottomed cylindrical shape with an open top, and includes a bottom 10, a side wall 11 rising upward from a peripheral edge of the bottom 10, and an upper end of the side wall 11. And a flange portion 12 projecting substantially horizontally toward the outside. In the present embodiment, the container 1 is circular in cross section, but may be oval or rectangular (rectangular or polygonal) in cross section.

  Although the bottom part 10 is disk shape, the annular leg part may protrude in the lower surface peripheral part toward the downward direction. The side wall portion 11 has a tapered shape extending while being inclined upward from the peripheral edge portion of the bottom portion 10 so as to have a divergent shape toward the upper end opening. Therefore, the container 1 is a tapered container 1. A lid is bonded to the upper surface of the flange portion 12 by heat sealing, or a lid that is fitted to the flange portion 12 is provided. Such a container 1 is formed from various synthetic resins by injection molding, but may be formed by blow molding or sheet molding.

  A shrink label 2 is attached so as to cover substantially the entire side wall 11 of the container 1. Specifically, the upper end 2 a of the shrink label 2 is located immediately below the flange portion 12 of the container 1, and the lower end 2 b of the shrink label 2 is located outside the bottom portion 10 of the container 1. That is, the predetermined area | region of the lower end 2b side of the shrink label 2 goes around to the bottom part 10 of the container 1, and has covered the lower surface peripheral part. The central part of the lower surface of the bottom 10 of the container 1 is not covered with the shrink label 2, and there is a circular uncovered part there. However, substantially the entire bottom 10 of the container 1 may be covered with the shrink label 2.

  In the shrink label 2, a printing layer is formed on the inner surface of the base film, and an adhesive layer is formed on the inner surface of the printing layer. The shrink label 2 has a so-called back printing configuration, and therefore the base film is transparent so that at least the inner printed layer can be visually recognized from the outside. As the base film, various heat-shrinkable films such as a polyester film, a polystyrene film, and a polyolefin film can be used. A single-layer film or a multilayer film may be used. A uniaxially stretched film that shrinks in the direction can be used, but a biaxially stretched film that also shrinks in the axial direction may be used. Further, the thermal contraction rate in the circumferential direction of the base film is preferably 20 to 80%, particularly preferably 30 to 80% when immersed in warm water at 90 ° C. for 10 seconds. In addition, it is good also as a structure of what is called surface printing which formed the printing layer on the outer surface of a base film, and in that case, a base film may be colored films, such as a milky white film.

  In the case of back printing, the printing layer includes a display printing layer for characters and designs, a white solid layer, and a water-based ink layer in order from the outside, that is, from the front side close to the base film. The display printing layer is formed by, for example, gravure printing, and acrylic ink is used, but various gravure inks such as urethane type can be used. The ink may or may not contain a pigment, and may be a UV curable ink. The white solid layer is composed of one or two or more layers made of white ink mixed with a white pigment such as titanium dioxide. The water-based ink layer is mainly composed of white water-based ink, and is intended to improve the adhesion of the delayed tack type adhesive among the heat-sensitive adhesives described later. As an example, an alkali-soluble acrylic resin Examples of the water-based ink resin, such as pigments, and water as a solvent are kneaded. However, the solvent may contain a water-miscible organic solvent such as alcohol.

  An example of the structure of the heat-sensitive adhesive layer is shown in FIG. FIG. 2 is a view of the developed state of the tubular shrink label 2 as seen from the inner surface side. The reference sign A is the circumferential direction when it becomes cylindrical, and the reference sign B is the axial direction when it becomes cylindrical. The print layer and the heat-sensitive adhesive layer are laminated on one side of the base film in the state of a long film as indicated by reference numeral 20, and then the both sides of the long film 20 are overlapped with the adhesive margin 21. It is cylindrical and is wound into a roll. Each cylindrical shrink label 2 is formed by cutting the long label wound in a roll shape into a predetermined length while feeding it out. Note that an adhesive is separately applied to the glue margin 21 when it is formed into a cylindrical shape.

  The heat-sensitive adhesive layer has two types of adhesive portions. That is, the heat-sensitive adhesive layer includes a first adhesive portion 31 made of a first heat-sensitive adhesive and a second adhesive portion 32 made of a second heat-sensitive adhesive different from the first heat-sensitive adhesive. . The first heat sensitive adhesive is activated at a relatively lower temperature than the second heat sensitive adhesive. That is, the activation temperature of the first heat sensitive adhesive is lower than that of the second heat sensitive adhesive. Specifically, the first heat-sensitive adhesive is a delayed tack type adhesive, and its activation temperature is approximately 60 ° C. to 100 ° C., although it varies depending on the type. In addition, the second heat-sensitive adhesive has a lower rate of decrease in the adhesive strength accompanying the temperature decrease from the normal temperature to the freezing temperature than that of the first heat-sensitive adhesive. Specifically, the second heat-sensitive adhesive is a hot-melt adhesive, and its activation temperature (melting point) is approximately 70 ° C. to 130 ° C., although it varies depending on the type.

  The delayed tack type adhesive has an adhesive-coated surface after application and drying that does not exhibit tackiness at room temperature, but develops tackiness upon heating, and the tackiness is maintained for a certain period of time (several minutes to It is an adhesive that lasts several days) and is usually composed of a thermoplastic resin, a solid plasticizer (crystalline plasticizer), a tackifier, and the like.

  As the thermoplastic resin, for example, polyacrylate, styrene-acrylate copolymer, styrene-butadiene copolymer, ethylene-vinyl acetate copolymer, polyvinyl acetate, vinyl acetate-acrylate copolymer , Ethylene-vinyl chloride copolymer, ethylene-acrylic acid ester copolymer, ethylene-acrylic acid copolymer, polybutadiene, polyurethane, styrene-isoprene block copolymer, and the like. Among these, an acrylic polymer containing an acrylate ester as a monomer component, a vinyl acetate polymer containing vinyl acetate as a monomer component, a styrene polymer containing styrene as a monomer component, and the like are preferable. These thermoplastic resins may be used alone or in combination of two or more.

  Examples of the solid plasticizer include phthalic acid esters such as diphenyl phthalate, dihexyl phthalate, dicyclohexyl phthalate, and dihydroabiethyl phthalate; isophthalic acid esters such as dimethyl isophthalate; terephthalic acid esters; sucrose benzoate; Benzoic acid esters such as ethylene glycol dibenzoate, trimethylolethane tribenzoate, pentaerythritol tetrabenzoate; acetate esters such as sucrose octaacetate; citrate esters such as tricyclohexyl citrate; N-cyclohexyl Examples thereof include, but are not limited to, sulfonamides such as -p-toluenesulfonamide. These solid plasticizers can be used alone or in combination of two or more.

  Examples of the tackifier include rosin resin (rosin, polymerized rosin, hydrogenated rosin and derivatives thereof, resin acid dimer, etc.), terpene resin (terpene resin, aromatic modified terpene resin, hydrogenated terpene resin, terpene). -Phenol resin, etc.), petroleum resin (aliphatic, aromatic, alicyclic), coumarone-indene resin, styrene resin, phenol resin and the like. A tackifier can be used individually or in combination of 2 or more types.

  In addition, the delayed tack type adhesive may contain known or conventional additives such as a dispersant, an antifoaming agent, and a thickening agent as necessary.

  On the other hand, a hot-melt adhesive is an adhesive having heat melting properties and tackiness, and is usually composed of a base polymer, a tackifier, a wax and the like. For hot melt adhesives, the base polymer is ethylene-vinyl alcohol copolymer, ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, ethylene-methyl acrylate copolymer, ethylene-ethyl acrylate. Olefin-based hot-melt adhesives that are olefin-based resins such as copolymers; base polymers are styrene-butadiene-styrene block copolymers (SBS), styrene-isoprene-styrene block copolymers (SIS), styrene- Rubber-based hot melt adhesives that are thermoplastic elastomers such as ethylene-butylene-styrene-block copolymer (SEBS) and styrene-ethylene-propylene-styrene block copolymer (SEPS); polyester whose base polymer is polyester Hot melt type Chakuzai; base polymer include a polyamide-based hot-melt adhesive is a polyamide. In addition, the thing similar to what was mentioned above can be used as a tackifier.

  In particular, in the hot melt type adhesive, it is preferable to use a part coat type heat sensitive adhesive because it can be applied by a printing technique such as gravure coating. In addition, although the thickness of a coating film changes also with an application | coating process, it can be set as about 4-10 micrometers with a delayed tack type | mold adhesive, and about 2-5 micrometers with a hot-melt-type adhesive agent. It is preferable to make the thickness of the delayed tack type adhesive film thicker than that of the hot melt type adhesive, and apply the delayed tack type adhesive twice or more times at the same location to apply the coating thickness. May be increased to increase the adhesive strength.

  Here, the adhesive strength can be compared by measuring the shear strength of each bonded portion. The shear strength of the bonded portion can be measured as follows. That is, the shrink label 2 attached to the container 1 is cut into a strip shape having a predetermined width along the axial direction, and the lower end portion of the shrink label 2 having the predetermined width extends along the side wall portion 11 as indicated by an arrow T in FIG. Pull in the direction perpendicular to the circumferential direction. Then, the tensile load is measured when the shrink label 2 having a predetermined width causes shear peeling from the side wall 11 of the container 1 and is displaced in the direction of the arrow T. As a tester, an autograph (manufactured by Shimadzu Corporation, AGS = 50G: load cell type 500N) can be used. The test temperature shall be based on JIS K 7000 standard temperature state class 2 (temperature: 23 ± 2 ° C., relative humidity 50 ± 5%). Then, by measuring and comparing a normal temperature stored at normal temperature, for example, 23 ° C. for 24 hours, and a frozen storage temperature, for example, stored at −20 ° C. for 24 hours, the shear strength at normal temperature is obtained. On the other hand, how much the shear strength at the freezing temperature is reduced can be determined. For example, in the case of a delayed tack type adhesive, the shear strength of frozen storage is greatly reduced with respect to the shear strength of room temperature storage. According to the experimental results, the decrease rate was 50% to 80%, and the shear strength was greatly reduced. On the other hand, in the case of a hot-melt adhesive, the shear strength of the frozen storage hardly decreases with respect to the shear strength of the normal temperature storage. Similarly, according to the experimental results, the rate of decrease was 0% to 30%, and a result almost unchanged from room temperature was obtained. As described above, the adhesive strength of the hot melt adhesive is maintained even under freezing.

  Returning to FIG. 2, the first adhesive portion 31 and the second adhesive portion 32 are formed at a plurality of locations while being spaced apart in the circumferential direction of the shrink label 2. In addition, when the cylindrical shrink label 2 is folded flat, the respective formation portions are arranged so that the first adhesive portions 31 do not overlap each other and the second adhesive portions 32 do not overlap each other. Is set. More specifically, the first adhesive portion 31 is located near the upper end 2 a of the shrink label 2. The first adhesive portion 31 has a long shape along the circumferential direction, and its area is relatively small. On the other hand, the second adhesive portion 32 is located closer to the lower end 2 b of the shrink label 2 than the first adhesive portion 31. The second adhesive portion 32 has a shape that is long along the axial direction, and has a shape that extends toward the lower end 2b of the shrink label 2 relative to the first adhesive portion 31, and its area is relatively large. large. The second adhesive portion 32 preferably extends below the center in the axial direction of the shrink label 2, and particularly preferably reaches the vicinity of the lower end of the side wall portion 11. When a plurality of second adhesive portions 32 are provided at intervals in the circumferential direction as shown in FIG. 2, all of them may reach the vicinity of the lower end of the side wall portion 11. It may be possible to reach the vicinity of the lower end of the side wall portion 11, and it is preferable that the second adhesive portion 32 reaching the vicinity of the lower end of the side wall portion 11 is formed at a position facing 180 degrees so as not to overlap.

  The white solid layer described above is formed on the entire inner surface of the shrink label 2 excluding the glue margin 21. Further, the water-based ink layer is formed on the whole other than the paste margin portion 21 except for the formation portion of the second adhesive portion 32. That is, the first adhesive portion 31 is formed on the water-based ink layer, while the second adhesive portion 32 is formed on the white solid layer. However, the second adhesive portion 32 may be formed on the water-based ink layer by forming a water-based ink layer at the location where the second adhesive portion 32 is formed. Further, when the display print layer is formed, an inspection mark for inspecting the positional deviation in the vertical direction (axial direction) or the horizontal direction (circumferential direction) of the shrink label 2 with respect to the container 1 is covered with the bottom portion 10 of the container 1. It is preferable to form in the part. The inspection mark is preferably black, and the surrounding color is preferably white so that it is formed in a high contrast state.

  The shrink label 2 configured as described above is in a state of being folded into a flat state before being put on the container 1. Although the second adhesive portion 32 is formed on the inner surface of the shrink label 2 with a relatively large area, the second heat-sensitive adhesive has a characteristic that it is more difficult to block than the first heat-sensitive adhesive, that is, the shrink label 2 Since it has the characteristic that the present situation that inner surfaces stick together and cannot be separated does not occur, blocking does not easily occur even if the coating area is large. The shrink label 2 is expanded from the flat folded state and is put on the container 1. In general, the shrink label 2 is put on the container 1 that is transported upside down as shown in FIG. It will be. Accordingly, the shrink label 2 is also placed in the upside down state so that the lower end 2b is located on the upper side and the upper end 2a is located on the lower side. When the shrink label 2 is attached to the container 1 with the lid that contains the contents, the shrink label 2 is transferred to the empty container 1 that does not contain the contents. When the container is mounted, the container 1 is covered with a transport jig attached to the upper surface of the conveyor and transported.

  Thereafter, the shrink label 2 is heat-shrinked so as to be in close contact with the container 1. However, since the side wall 11 of the container 1 is tapered toward the bottom 10, only the vicinity of the upper end 2 a of the shrink label 2 is first used. The portion of the container 1 is first heat-shrinked to closely contact the upper portion of the side wall 11 of the container 1, and then the entire shrink label 2 is heated to heat the entire side wall 11 of the container 1 and the bottom 10. It is made to adhere to the peripheral part of. In the case where only the vicinity of the upper end 2a of the shrink label 2 is locally heated to adhere closely to the upper portion of the side wall 11 of the container 1, it is preferable to blow hot air so that the shrink label 2 is easily heated locally. It is preferable to heat the container 1 while rotating it around the axis. In this way, the vicinity of the upper end 2a of the shrink label 2 is first brought into close contact with the upper portion of the side wall portion 11 of the container 1, so that the shrink label 2 is less likely to be displaced with respect to the container 1 during heat shrinkage. 10 is prevented from being displaced in the axial direction toward 10. And since the 1st adhesion part 31 located in the upper end 2a vicinity of the shrink label 2 is activated earlier than the 2nd adhesion part 32, the upper end 2a vicinity of the shrink label 2 is side wall part of the container 1 by the 1st adhesion part 31. 11 is bonded to the upper portion of 11 so as to prevent the displacement. Subsequently, the entire shrink label 2 is heated. In this case, in order to uniformly heat the whole, it is preferable to heat the shrink label 2 with steam in the shrink tunnel. Since the second bonding portion 32 is activated by this heating, the shrink label 2 is bonded to the side wall portion 11 of the container 1 over a long section in the axial direction, specifically, to the vicinity of the bottom portion 10. It will be.

  After the shrink label 2 is mounted on the container 1 in this way, if the contents are not accommodated, it is accommodated, and if the contents are already accommodated, they are stored and transported as they are. However, when the content is frozen food such as ice cream, it is stored frozen in a freezer. When the first adhesive portion 31 is stored in the frozen state as described above, the adhesive strength of the first adhesive portion 31 decreases due to the temperature drop from the normal temperature to the freezing temperature, while the second adhesive portion 32 maintains the same adhesive strength as that at normal temperature even at the freezing temperature. . Therefore, since the second adhesive portion 32 is provided in addition to the first adhesive portion 31, the adhesive state of the shrink label 2 to the container 1 is maintained without causing insufficient adhesive strength even when stored frozen. . In particular, since the second adhesive portion 32 has a relatively large application area, and it extends in the axial direction and is formed over a long section in the axial direction, the container 1 of the shrink label 2 is moved to. The adhesion state of is surely maintained.

  In addition, arrangement | positioning and shape of the 1st adhesion part 31 or the 2nd adhesion part 32 are arbitrary, You may form in spot shape or a linear form, and let the 2nd adhesion part 32 be the shape extended in the axial direction. Instead, it may be formed at a plurality of locations while being spaced apart in the axial direction. Furthermore, although two types of heat-sensitive adhesives are used, three or more types of heat-sensitive adhesives may be used.

  In addition, as described above, the shape of the container 1 is also arbitrary, and the side wall portion 11 does not have a uniform taper shape from its upper end 2a to its lower end 2b, but has a cut-off shape having a step portion in the middle. Alternatively, a vertical portion having a substantially constant diameter or thickness, that is, a substantially constant cross-sectional shape may be provided on the upper portion of the side wall portion 11. In any case, when the side wall portion 11 has a shape that increases toward the upper side as a whole, it is particularly effective because the positional deviation of the shrink label 2 in the axial direction is prevented. When providing a vertical part on the upper part of the side wall part 11, it is preferable to provide the 1st adhesion part 31 corresponding to the vertical part.

DESCRIPTION OF SYMBOLS 1 Container 2 Shrink label 2a Upper end 2b Lower end 10 Bottom part 11 Side wall part 12 Flange part 20 Long film 21 Paste margin 31 First adhesion part 32 Second adhesion part

Claims (4)

A shrink label is attached to the container by heat shrinkage and a predetermined portion of the shrink label is adhered to the container by a heat sensitive adhesive,
As an adhesive part for bonding the shrink label to the container, a first adhesive part made of a first heat-sensitive adhesive, and a second adhesive part made of a second heat-sensitive adhesive different from the first heat-sensitive adhesive, With
The first heat sensitive adhesive is activated at a relatively lower temperature than the second heat sensitive adhesive,
The second thermosensitive adhesive is a container with a shrink label, wherein the rate of decrease in the adhesive strength at the freezing temperature relative to the adhesive strength at room temperature is smaller than that of the first thermosensitive adhesive.   The container has a bottomed shape with an upper end opening, and a shrink label is attached to the side wall portion thereof, and the side wall portion of the container is shaped to increase upward as a whole, and the first adhesive portion is formed near the upper end of the shrink label. The container with a shrink label according to claim 1, wherein the second adhesive portion is formed on the lower end side of the shrink label with respect to the first adhesive portion.   The container with a shrink label according to claim 1 or 2, wherein the second adhesive portion extends in the axial direction of the shrink label and has a larger area than the first adhesive portion. A shrink label with an inner surface coated with a heat sensitive adhesive,
A first adhesive part made of the first heat-sensitive adhesive and a second adhesive part made of a second heat-sensitive adhesive different from the first heat-sensitive adhesive are formed on the inner surface,
The first heat sensitive adhesive is activated at a relatively lower temperature than the second heat sensitive adhesive,
A shrink label, wherein the second heat-sensitive adhesive has a lower rate of decrease in the adhesive strength at the freezing temperature relative to the adhesive strength at room temperature than that of the first heat-sensitive adhesive.

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