JP2019112111A - Wrapper for container - Google Patents

Abstract

To provide a wrapper which can perform exhaust of gas from the inside of a container effectively.SOLUTION: At least one overlap region comprises a first connection portion formed such that a non-heat shrink portion and a heat shrink portion are connected, a second connection portion formed such that the non-heat shrink portion and the heat shrink portion are connected in a position that is separated toward the side of a non-overlap region from the first connection portion and of which connection strength is weaker than that of the first connection portion, and a wrapper penetration portion which penetrates the non-heat shrink portion in a position between the first connection portion and the second connection portion. The second connection portion is constructed so that the connection between the non-heat shrink portion and the heat shrink portion is released when the heat shrink portion is shrank by heat, and the overlap region which comprises the first connection portion and the second connection portion or the non-overlap region are wrapped around a container so as to cover a lid body penetration portion.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a strap for a container which is wound around a container comprising a container body having an opening and a lid closing the opening of the container body.

  There is known a container comprising a container body having an opening and a lid for closing the opening of the container body. In recent years, the connection between the opening of the container body and the lid has become relatively strong in order to prevent the intrusion of foreign matter into the container and the unintentional removal of the lid from the container body. ing.

  By the way, the contents such as food stored in the above container may be heated using a microwave oven or the like. Thus, when the contents in the container are heated, a large amount of water vapor may be generated from the contents depending on the water content of the contents and the temperature of the contents. When a large amount of water vapor is rapidly generated in the container, the internal pressure of the container rapidly increases, which may cause deformation or breakage of the container, or the lid may be detached from the container body.

  Therefore, it has been proposed to form an exhaust part for discharging the gas in the container by providing a cut which penetrates the lid in the lid (see Patent Document 1). As a result, the water vapor generated in the container is discharged to the outside of the container by passing through the cut of the exhaust unit, so that the rise in the internal pressure of the container is suppressed.

  However, even when the lid is cut to form the exhaust part as described above, the internal pressure of the container is increased by heating, so the lid may be separated from the container body by the internal pressure. In addition, there is a possibility that foreign matter may intrude into the inside of the container from the cut of the exhaust part. For this reason, by wrapping a banding around the exhaust portion so as to prevent the lid from coming off the container body due to an increase in internal pressure, it is possible to prevent foreign matter from entering the inside of the container from the exhaust portion. .

JP 2017-52518 A

  However, as described above, when the exhaust portion is covered with a banding, the banding hinders the discharge of the gas from the exhaust portion, so that the gas can not be efficiently discharged from the inside of the container.

  Then, this invention makes it a subject to provide the banding which can discharge the gas from the inside of a container effectively.

The band seal according to the present invention comprises a container body having an opening and a lid for closing the opening of the container body, and is configured to be capable of being annularly wound around a container including a lid penetrating portion penetrating the lid. At least one non-heat-shrinkable portion formed of a non-heat-shrinkable film material and at least one heat-shrinkable portion formed of a heat-shrinkable film material overlapping each other; A non-polymerized region including a region formed adjacent to and not overlapping the heat-shrinkable portion in the non-heat-shrinkable portion, and a banding formed by connecting the non-heat-shrinkable portion and the heat-shrinkable portion in the polymerization region The at least one polymerization region is a first connection portion formed by connecting the non-heat-shrinkable portion and the heat-shrinkage portion, and the non-heat-shrinkable portion and heat at a position separated from the first connection portion toward the non-polymerization region. The contraction part is connected and formed Both a second connection portion connecting strength is weaker than the first connection portion, and a bundling through portion that penetrates the non-thermally shrinkable portion at a location between the first connection portion and the second connecting portion,
The second connection portion is configured such that the connection between the non-heat-shrinkable portion and the heat-shrinkable portion is released along with the heat-shrinkage of the heat-shrinkable portion, and the polymerization region includes the first connection portion and the second connection portion. Alternatively, the non-polymerized area is wound on the container so as to cover the lid penetration.

  According to such a configuration, in the banding according to the present invention, at least one polymerization region is formed by connecting the non-heat-shrinkable portion and the heat-shrinkable portion to a first connecting portion, and non-polymerizing from the first connecting portion. A non-heat-shrinkable portion and a heat-shrinkable portion are connected at a position separated to the region side, and a second connection portion having a weaker connection strength than the first connection portion, a first connection portion, and a second connection portion And a banding penetrating portion which penetrates the non-heat shrinking portion at a position between the two. Moreover, the banding concerning this invention winds on a container so that the superposition | polymerization area | region provided with a 1st connection part and a 2nd connection part, or a non-polymerization area | region may cover a lid penetration part.

  As a result, when the bandage wound around the container in which the container such as food is stored is heated by the microwave oven or the like, the heat-shrinkable portion is shrunk in the polymerization region. Under the present circumstances, since the 2nd connection part is constituted so that connection intensity may become weak rather than the 1st connection part, connection of the 2nd connection part will be canceled with heat contraction of a heat contraction part. . Here, since the second connection portion is positioned closer to the non-overlapping region than the first connection portion, and the band-wrapped through portion is provided at a position between the first connection portion and the second connection portion, the second connection portion is annularly wound around the container The inside and the outside of the bundling are in communication with each other through the part where the second connection part is disconnected and the bundling penetrating part.

  Thereby, the gas discharged from the lid penetrating portion is discharged from the band-passing portion to the outside of the annular band-passing, passing between the non-heat-shrinkable portion and the portion forming the polymerization region of the heat-shrinked portion. become. For this reason, it can suppress that discharge of the gas from a lid penetration part is inhibited by banding, and can perform discharge of the gas from the inside of a container effectively.

  In addition, by the banding penetrating portion being positioned between the first connecting portion and the second connecting portion, the banding penetrating portion seals at the second connecting portion side until the connection of the second connecting portion is released by heating. It will be done. For this reason, it can suppress that a foreign material penetrate | invades from the band-wrap penetration part into the inner side of the band-wrap wound cyclically by the container, and can suppress that a foreign substance penetrate | invades into a container from a lid penetration part. .

  A band-shaped first strip-shaped film forming the non-heat-shrinkable portion and a second strip-shaped film forming the heat-shrinkable portion are connected in the length direction, and the polymerization region is the length of the first strip-shaped film It is preferable to comprise at least one end of the direction and one end of the second strip-shaped film in the longitudinal direction.

  According to such a configuration, the first strip-like film forming the non-heat-shrinkable portion and the second strip-like film forming the heat-shrinkable portion are connected in the length direction. Further, the polymerization region is constituted of at least one end portion in the longitudinal direction of the first strip-like film and one end portion in the longitudinal direction of the second strip-like film.

  As a result, the overlapping area of the end portions of the first band-shaped film and the second band-shaped film forms a polymerization area, so the area of the polymerization area is relatively small. For this reason, the gas which has entered the space between the non-heat-shrinkable portion (first band-shaped film) and the heat-shrinked portion (second band-shaped film) can be easily discharged from the space.

  It is preferable that the area | region which forms the superposition | polymerization area | region of a heat shrinking part is comprised so that a banding penetration part may be covered from the container side, when a banding is wound around a container.

  According to such a configuration, the region forming the polymerization region of the heat-shrinkable portion is configured to cover the banding penetrating portion from the container side when the banding is wound around the container. Thereby, it can suppress that a foreign material penetrate | invades from a band-wrap penetration part to the inner side of the band-wrap wound by the container and cyclically | annularly formed. For this reason, it can suppress more effectively that a foreign material penetrates into a container from a lid penetration part.

  The polymerization region is configured to cover the lid penetrating portion when the banding is wound around the container, and the region forming the polymerization region of the heat-shrinkable portion is a lid connecting portion connected to the lid. It is preferable that the lid connecting part is configured to be separated from the lid along with the heat contraction of the heat-shrinkable portion.

  According to such a configuration, the region forming the polymerization region of the heat-shrinkable portion includes the lid connection portion connected to the lid. Then, the lid connection portion is configured to be separated from the lid along with the heat contraction of the heat contraction portion.

  Thereby, since a superposition | polymerization area | region is connected with a cover in the state which covered the cover penetration part, the penetration | invasion of the foreign material from the cover penetration part into a container can be prevented more effectively.

  In addition, the lid connecting portion is separated from the lid along with the heat shrinkage of the heat shrinking portion. For this reason, the inside and the outside of the bandage wound annularly around the container, via the part where the lid connecting part is separated from the lid, the part where the second connecting part is disconnected, and the banding penetrating part It will be in the state of communication.

  Thereby, the gas discharged from the lid penetrating portion is discharged from the band-passing portion to the outside of the annular band-passing, passing between the non-heat-shrinkable portion and the portion forming the polymerization region of the heat-shrinked portion. become. For this reason, it can suppress that discharge | emission of the gas from a cover penetration part is inhibited by banding.

  As described above, according to the present invention, the gas can be effectively discharged from the container.

(A) is the side view which showed the structure of the container by which the bundling which concerns on one Embodiment of this invention is wound, (b) is the top view which looked at the container where the bundling concerning this embodiment is wound from the lid side. The perspective view which showed the bundling which concerns on the embodiment. The top view which looked at the state by which the banding which concerns on the embodiment was wound around the container from the lid side. (A) is a cross-sectional view showing the vicinity of a banding penetrating portion in a state in which the banding according to the embodiment is wound around a container, showing a state before the second connecting portion is separated, (b) FIG. 7 is a cross-sectional view showing the vicinity of a banding penetrating portion in a state where a banding according to the embodiment is wound around a container, and a view showing a state in which a second connecting portion is separated. The top view which looked at the state by which the banding which concerns on other embodiment was wound around the container from the lid side. (A) is a sectional view showing the vicinity of a banding penetration part in a state where a banding according to still another embodiment is wound around a container, and before the second connecting part and the lid connecting part are separated The figure which showed the state, (b) is sectional drawing which showed the vicinity of the banding penetration part in the state by which the banding which concerns on the embodiment was wound by the container, and a 2nd connection part and a lid connection part The figure which showed the separated state.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. In the following drawings, the same or corresponding parts have the same reference characters allotted and description thereof will not be repeated.

  The bandage according to the present invention is used by being wound around a container X as illustrated in FIG. The container X is provided with the container main body X1 and the cover body X2 attached to this container main body X1, as shown to Fig.1 (a). The container body X1 is provided with an opening X3 for opening the internal space for containing the contents to the outside, and the lid X2 is attached so as to close the opening X3.

  As shown in FIG. 1B, the lid X2 includes a lid penetrating portion X4 penetrating the lid, and is configured to be able to discharge the gas in the container X from the lid penetrating portion X4. In the present embodiment, the lid penetrating portion X4 is configured by an arc-shaped cut that penetrates the lid X2. In addition, the lid X2 includes a concave portion X5 formed in a concave shape toward the container main body X1 side. Then, the lid penetrating portion X4 is formed on the inner side (more specifically, the bottom surface) of the concave portion X5. In addition, lid penetration part X4 may be constituted from a cut (a square shape etc.) other than circular arc shape, and may be constituted from a penetration hole (a circle shape, square shape etc).

  The band seal 1 according to the present embodiment is, as shown in FIG. 2, at least one non-heat-shrinkable portion 2 formed of a non-heat-shrinkable film and at least one heat-shrinkable portion formed of a heat-shrinkable film. And 3. Specifically, the band seal 1 is formed by connecting a band-shaped first band-shaped film 2 a forming the non-heat-shrinkable portion 2 and a second band-shaped film 3 a forming the heat-shrinkable portion 3.

  The band seal 1 includes a polymerization region 1b formed by overlapping the non-heat-shrinkable portion 2 (first band-shaped film 2a) and the heat-shrinked portion 3 (second band-shaped film 3a). In addition, the wrapper 1 is formed adjacent to the polymerization region 1b and has a non-heat-shrinkable portion 2 (first band-shaped film 2a) and a non-overlapping region with the heat-shrinkable portion 3 (second band-shaped film 3a). A polymerization region 1c is provided.

  The polymerization region 1b includes at least one end (both ends in the present embodiment) of the first belt-shaped film 2a in the lengthwise direction and one end (both ends in the present embodiment) of the second belt-shaped film 3a in the lengthwise direction. And are formed by overlapping. In the present embodiment, the banding 1 includes a pair of overlapping regions 1b at intervals in the longitudinal direction. And the non-polymerization area | region 1c is formed between a pair of superposition | polymerization area | regions 1b.

  The wrapping 1 is formed by connecting the non-heat-shrinkable portion 2 and the heat-shrinkable portion 3 in the polymerization region 1 b. Specifically, one polymerization region 1 b includes a first connecting portion 1 d formed by connecting the non-heat-shrinkable portion 2 and the heat-shrinkable portion 3. Further, one of the polymerization regions 1b is formed by connecting the non-heat-shrinkable portion 2 and the heat-shrinkage portion 3 at a position separated from the first connection portion 1d to the non-polymerization region 1c side and A second connecting portion 1e having a weak connecting strength is provided. Furthermore, one polymerization region 1b includes a banding penetrating portion 1f penetrating the non-heat-shrinkable portion 2 at a position between the first connecting portion 1d and the second connecting portion 1e. Further, in the present embodiment, the other polymerization region 1b includes only the first connecting portion 1d.

  It does not specifically limit as a shape of the 1st connection part 1d and the 2nd connection part 1e, In this embodiment, it forms in the strip | belt shape extended continuously in the width direction of the bundling 1. As shown in FIG. It does not specifically limit as a shape of banding penetration part 1f, In this embodiment, it is formed in the shape of a perforation extended in the cross direction of banding 1.

  The second connection portion 1 e is configured such that the connection between the non-heat-shrinkable portion 2 and the heat-shrinkable portion 3 is released along with the heat-shrinkage of the heat-shrinkable portion 3. In addition, the first connecting portion 1d is not thermally shrunk even when the thermally shrunk portion 3 is thermally shrunk and the connection between the non-thermally shrinking portion 2 and the thermally shrunk portion 3 is broken (when the bandage 1 is heated) It is comprised so that connection with the part 2 and the heat contraction part 3 may be maintained.

  In addition, it does not specifically limit as a film material which comprises the non-heat-shrinkable part 2 (1st strip | belt-shaped film 2a), For example, even if heated at the temperature of 110 degreeC or more, it shrink | contracts in a length direction and the width direction It is preferable that the Specifically, for example, a resin film such as an OPP film can be used as a film material that constitutes the non-heat-shrinkable portion 2 (first film band 2a). Moreover, it does not specifically limit as a film material which comprises the heat contraction part 3 (2nd strip | belt-shaped film 3a), For example, when heated at the temperature of 70 degreeC or more, it shrink | contracts in a length direction or width direction It is preferable that Specifically, for example, a resin film such as a PET film can be used as a film material that constitutes the heat-shrinkable portion 3 (second band-shaped film 3a).

  Moreover, the method (specifically, the 1st connection part 1d, and / or the 2nd connection) of connecting the non-heat-shrinkable part 2 (1st strip | belt-shaped film 2a) and the heat contraction part 3 (2nd strip | belt-shaped film 3a). It does not specifically limit as method to form the part 1e, For example, known connection methods, such as a heat seal, a double-sided tape, an adhesive agent, can be used.

  The banding 1 formed as described above is wound around the container X as shown in FIG. At this time, the polymerization region 1b is disposed so as to cover the lid penetrating portion X4. Further, the region between the first connecting portion 1d and the second connecting portion 1e (preferably, the position overlapping with the band-wrapping through portion 1f) is disposed so as to overlap with the lid penetrating portion X4. Further, as shown in FIG. 4A, in the state of being wrapped around the container X, the band seal 1 forms the band-passing portion 1f in the area where the polymerization area 1b of the heat-shrinkable portion 3 (second band-shaped film 3a) is formed. It is arranged to cover from the container X side.

  As described above, the packaging 1 according to the present embodiment can effectively discharge the gas from the inside of the container X.

  That is, in the band seal 1 according to the present embodiment, at least one polymerization region 1b is formed from the first connecting portion 1d formed by connecting the non-heat-shrinkable portion 2 and the heat-shrinkable portion 3 and the first connecting portion 1d. The non-heat-shrinkable portion 2 and the heat-shrinkable portion 3 are connected at a position separated to the non-polymerized region 1c side, and the second connection portion 1e having a weaker connection strength than the first connection portion 1d It has a banding penetration part 1f which penetrates the non-heat-shrinkable part 2 in the position between the part 1d and the second connection part 1e. Moreover, the band seal 1 which concerns on this embodiment winds around the container X so that the superposition | polymerization area | region 1b provided with the 1st connection part 1d and the 2nd connection part 1e or the non- superposition | polymerization area | region 1c covers the cover penetration part X4.

  As a result, when the bandage 1 wound around the container X in which the container such as food is stored is heated by a microwave oven or the like, the heat-shrinkable portion 3 contracts in the polymerization region 1b. Under the present circumstances, since the 2nd connection part 1e is comprised so that connection strength may become weak rather than the 1st connection part 1d, the connection of the 2nd connection part 1e is released with heat contraction of the heat contraction part 3. It will be beaten. Here, the second connecting portion 1e is located closer to the non-overlapping region 1c than the first connecting portion 1d, and includes the band-passing portion 1f at a position between the first connecting portion 1d and the second connecting portion 1e. The inner side and the outer side of the bandage 1 wound annularly around the container X communicate with each other through the part where the connection of the second connection portion 1e is released and the bandage penetrating portion 1f.

  Thereby, the gas discharged from the lid penetrating portion X4 passes between the non-heat-shrinkable portion 2 and the portion forming the polymerization region 1b of the heat-shrinkable portion 3 and the outer side of the annular band seal 1 from the band-passing portion 1f. Will be discharged into For this reason, it can suppress that discharge of gas from lid penetration part X4 is inhibited by banding 1.

  In addition, since the band-passing portion 1f is positioned between the first connecting portion 1d and the second connecting portion 1e, the band-passing portion 1f is subjected to the first connection until the connection of the second connecting portion 1e is released by heating. It will be sealed between the part 1d and the 2nd connection part 1e. For this reason, it is possible to prevent foreign matter from invading the inside of the band seal 1 annularly wound on the container X from the banding penetrating portion 1f, and foreign matter from the lid penetrating portion X4 into the container X can be prevented. It can be suppressed.

  In addition, a band-shaped first band-shaped film 2 a forming the non-heat-shrinkable portion 2 and a second band-shaped film 3 a forming the heat-shrinkable portion 3 are formed to be connected in the length direction. The polymerization region 1b is formed of at least one end in the longitudinal direction of the first strip-like film 2a and one end in the longitudinal direction of the second strip-like film 3a.

  Thereby, since the superposition | polymerization area | region 1b is formed by the overlap of the edge parts of the 1st strip | belt-shaped film 2a and the 2nd strip | belt-shaped film 3a, the area of the superposition | polymerization area | region 1b becomes comparatively small. For this reason, it is possible to easily discharge the gas that has entered the space between the non-heat-shrinkable portion 2 (first band-shaped film 2a) and the heat-shrinked portion 3 (second band-shaped film 3a) from such a space.

  Moreover, when the banding 1 is wound around the container X, the area | region which forms the superposition | polymerization area | region 1b of the heat contraction part 3 is comprised so that the banding penetration part 1f may be covered from the container X side. Thereby, it can suppress that a foreign material penetrate | invades from the band-wrap penetration part 1f inside the band-wrap 1 wound around the container X and formed cyclically | annularly. For this reason, it is possible to more effectively suppress the entry of foreign matter into the container X from the lid penetrating portion X4.

  In addition, the bundling for containers which concerns on this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of this invention. The configurations, methods, and the like of the plurality of embodiments described above may be arbitrarily adopted and combined (the configuration, the method, and the like according to one embodiment may be applied to the configurations, the methods, and the like according to the other embodiments). Further, it goes without saying that configurations, methods and the like according to various modifications described below may be arbitrarily selected and adopted as the configuration, method and the like according to the above-described embodiment.

  For example, in the above embodiment, the second connection portion 1 e is formed only from the portion extending in the width direction of the band seal 1, but is not limited thereto. For example, as shown in FIG. The second connecting portion 1 e may be formed in a frame shape so as to surround the periphery of the portion 1 f.

  Moreover, in the said embodiment, in the state by which the closure 1 was wound around the container X, although the superposition | polymerization area | region 1b is comprised so that the cover penetration part X4 may be covered, it is not limited to this. The superposition | polymerization area | region 1c may be comprised so that the cover penetration part X4 may be covered. In such a case, it is preferable that the polymerization region 1b be disposed in the vicinity of the lid penetrating portion X4.

  Moreover, as shown in FIG. 6, the area | region which forms the superposition | polymerization area | region 1b of the heat contraction part 3 (2nd strip | belt-shaped film 3a) may be comprised so that the cover connection part 3b connected with the cover X2 may be provided. . In such a case, the lid connection portion 3b is configured to be separated from the lid X2 in accordance with the thermal contraction of the heat-shrinkable portion 3 (second band-shaped film 3a).

  According to such a configuration, since the polymerization region 1b is connected to the lid X2 in a state of covering the lid penetrating portion X4, intrusion of foreign matter from the lid penetrating portion X4 into the container X is more effectively prevented. can do.

Further, along with the heat contraction of the heat-shrinkable portion 3 (second band-shaped film 3a), the lid connecting portion 3b is separated from the lid X2. For this reason, the inside and the outside of the bundling 1 annularly wound around the container X, the part where the lid connecting part 3b is detached from the lid X2, the part where the connection of the second connecting part 1e is released, and the banding It will be in the state connected via penetration part 1f.
Thereby, the gas discharged from the lid penetrating portion X4 is generated between the non-heat-shrinkable portion 2 (first band-shaped film 2a) and the portion forming the polymerization region 1b of the heat-shrinked portion 3 (second band-shaped film 3a). It passes through and is discharged | emitted from the band-wrap penetration part 1f to the outer side of the annular band seal 1. As shown in FIG. For this reason, it can suppress that discharge of gas from lid penetration part X4 is inhibited by banding 1.

  In addition, it does not specifically limit as method to form the cover connection part 3b, For example, known connection methods, such as a heat seal, a double-sided tape, an adhesive agent, can be used. The shape of the lid connecting portion 3b is not particularly limited. For example, the lid connecting portion 3b may be formed in a band shape at a position overlapping the first connecting portion 1d and / or the second connecting portion 1e, or The frame may be formed to surround the lid penetrating portion X4.

  Further, in the above embodiment, in a state where the band seal 1 is wound around the container X, a region forming the polymerization region 1 b of the heat-shrinkable portion 3 (second band-shaped film 3 a) The heat-shrinkable portion 3 (second band-shaped film 3a) is disposed so as to cover the inner side of the annular band seal 1 but is not limited thereto, for example, in a state where the band seal 1 is wound around the container X The area | region which forms the superposition | polymerization area | region 1b may be arrange | positioned so that the packing penetration part 1f may be covered from the outer side of the cyclic | annular banding 1. As shown in FIG. In other words, the polymerization area 1b of the non-heat-shrinkable portion 2 (first band-shaped film 2a) is formed between the container X and the area of the heat-shrinkage portion 3 (second band-shaped film 3a) forming the polymerization area 1b. The area may be configured to be located.

  Moreover, in the said embodiment, although the band seal 1 is comprised from one non-heat-shrinkable part 2 (1st strip | belt-shaped film 2a) and one heat-shrinkable part 3 (2nd strip | belt-shaped film 3a), it is limited to this For example, the band seal 1 may be configured of a plurality of non-heat-shrinkable portions 2 (first band-shaped films 2a) and a plurality of heat-shrinked portions 3 (second band-shaped films 3a).

  Moreover, in the said embodiment, although the band-wrap penetration part 1f is comprised from the perforation, it is not limited to this, It may be formed in the continuous linear form, circular shape, or polygonal shape etc. .

  Moreover, in the said embodiment, although one banding penetration part 1f is formed in the band sealing 1, it is not limited to this, For example, several banding penetration part 1f may be formed.

  DESCRIPTION OF SYMBOLS 1 ... Band sealing, 1b ... superposition | polymerization area | region 1c ... non-polymerization area | region 1 d ... 1st connection part, 1e ... 2nd connection part, 1 f ... banding penetration part, 2 ... non-heat-shrinkage part, 2a ... 1st strip | belt-shaped film, 3 ... Heat shrinking portion, 3a ... Second band film, 3b ... Lid connecting part, X ... Container, X1 ... Container main body, X2 ... Lid, X3 ... Opening, X4 ... Lid penetrating part, X5 ... Recess

Claims (4)

The apparatus is configured to be able to be annularly wound around a container including a container body having an opening and a lid for closing the opening of the container body, and a lid penetrating part penetrating the lid.
A polymerization region formed by overlapping at least one non-heat-shrinkable portion formed of a heat-shrinkable film material and at least one heat-shrinkage region formed of a heat-shrinkable film material, and adjacent to the polymerization region A non-polymerized region including a region not overlapping the heat-shrinkable portion in the non-heat-shrinkable portion and a banding formed by connecting the non-heat-shrinkable portion and the heat-shrinkable portion in the polymerization region,
The at least one polymerization region is a first connecting portion formed by connecting the non-heat shrinking portion and the heat shrinking portion, and the non-heat shrinking portion and the heat shrinking at a position separated from the first connecting portion Through the non-heat-shrinkable portion at a position between the second connecting portion and the second connecting portion which is formed by connecting the second connecting portion and has a connecting strength weaker than that of the first connecting portion Equipped with
The second connection portion is configured such that the connection between the non-heat-shrinkable portion and the heat-shrinkable portion is released along with the heat-shrinkage of the heat-shrinkable portion,
The polymerization area | region provided with a 1st connection part and a 2nd connection part, or the banding with which a non-polymerization area | region is wound around a container so that a lid penetration part may be covered. A band-shaped first band-shaped film forming the non-heat-shrinkable portion and a second band-shaped film forming the heat-shrinkable portion are connected in the length direction,
The banding according to claim 1, wherein the polymerization region comprises at least one end of the first strip-shaped film in the lengthwise direction and one end of the second strip-shaped film in the lengthwise direction.   The banding according to claim 1 or 2, wherein the area forming the polymerization area of the heat-shrinkable part is configured to cover the banding penetrating part from the container side when the banding is wound on the container. The polymerization region is configured to cover the lid penetrating portion when the banding is wound around the container,
The region forming the polymerization region of the heat-shrinkable portion includes a lid connection portion connected to the lid,
The strap according to claim 3, wherein the lid connection portion is configured to be separated from the lid along with the heat contraction of the heat-shrinkable portion.