JP2016009148A - Cylindrical label and container with label - Google Patents

Abstract

PROBLEM TO BE SOLVED: To keep an appearance of a core print area even when contents enter a container with a label or the container becomes wet with water.SOLUTION: A cylindrical label 10 comprises: a label base material 11 that is molded into a cylindrical shape and is folded at two fold positions into a flat shape; a printing layer 12 that is formed on the label base material 11; and a seal portion 14 that is formed by superimposing an inner surface on one end side of the label base material 11 on an outer surface on the other end side of the label base material 11 and bonding the superimposed surfaces with each other. The printing layer 12 includes a core print area 12a, and the core print area 12a is provided to an area that is the inner surface on one end side of the label base material 11 and is outside a range of a given length from a position corresponding to the other end toward the other end side. On the inner surface of the label base material 11, a thermosensitive adhesive layer 13 is provided to surround the core print area 12a.

Description

  The present invention relates to a cylindrical label and a labeled container.

  A labeled container in which a cylindrical label is attached to a container such as a plastic bottle is known. In the case where the cylindrical label is a shrink label having heat shrinkability, a label-attached container in which the label follows the shape of the container is obtained by shrinking by heating after the label is externally fitted to the container. The cylindrical label is provided with a printing layer for displaying a product name, a design, a product description, and the like, and plays a role of increasing the purchase motivation of the product, for example.

  By the way, in the case of a labeled container that contains contents such as shampoo and detergent, a small amount of the contents is assumed to be used once, and the label (for a long period until the contents are finally used up) In particular, it is desired that the appearance of the core printing area including main display elements such as a product name and main design be maintained well. However, each time the product is used, the contents are drained from the spout, and the drained contents enter the space between the label and the container. Often appear).

  In addition, the labeled container may be used in a place where it easily gets wet, such as a bathroom or kitchen. When water is applied to a labeled container, for example, water may enter between the label and the container, resulting in a problem that the appearance of the label printing display is deteriorated (for example, it looks dark). Patent Document 1 discloses a cylindrical shrink label in which a heat-sensitive adhesive is applied over the entire length of the upper and lower ends of the inner surface of the label in order to prevent liquid from entering between the cylindrical label and the container. .

  FIG. 10 is an enlarged view showing the vicinity of the seal portion 50 in a labeled container using a conventional cylindrical label disclosed in Patent Document 1. As shown in FIG. As shown in FIG. 10, the cylindrical label has a heat-sensitive adhesive application portion 55 on a printed layer 54 formed on the inner surface of the label substrate 51. The cylindrical label is a seal formed by superimposing the inner surface on the one end portion 52 side of the label base material 51 on the outer surface on the other end portion 53 side of the label base material and bonding the superposed surfaces to each other. A portion 50 (generally called a center seal portion) is included.

Japanese Utility Model Publication No. 64-20475

  In the case of the cylindrical label having the seal portion 50, even if the heat-sensitive adhesive application portion 55 is provided over the entire length of the upper and lower ends of the label, when the label is attached to the container 56, the one end portion 52 side of the label base 51 A gap 57 caused by the seal portion 50 is formed between the inner surface of the container 56 and the surface of the container 56. Such a gap 57 can be reduced, but cannot be completely eliminated. Therefore, the contents and water enter between the label 57 and the container 56 through the gap 57 and permeate the entire label, and the appearance of the label print display is deteriorated.

  In the print display of the cylindrical label, there is a core print area including main display elements such as a product name and a main design, and it is important to maintain the appearance of the core print area even when the product is used. Therefore, the present inventors prevent the intrusion of contents and water between the core printing area of the label and the container, and at least maintain the appearance of the core printing area based on the technical idea. It was made.

  A cylindrical label according to the present invention is formed into a cylindrical body and is folded into a flat shape at two folding positions; a printed layer formed on the inner surface of the label base; and the label base A cylindrical label having an inner surface on one end side overlapped with an outer surface on the other end side of the label base material and adhering the overlapped surfaces to each other. A printing region, wherein the core printing region is an inner surface on the one end portion side of the label base material and has a predetermined length from a position corresponding to the other end portion toward the other end portion side. A heat-sensitive adhesive layer is provided on the inner surface of the label base so as to surround the core printing region.

  In an example of the cylindrical label according to the present invention, the heat-sensitive adhesive layer is formed so that the layers do not face each other when the label base material is folded.

  In an example of the cylindrical label according to the present invention, the heat-sensitive adhesive layer is formed in a band shape surrounding the core printing region.

  In an example of the cylindrical label according to the present invention, the heat-sensitive adhesive layer has a width of 5 mm to 10 mm.

  In an example of the cylindrical label according to the present invention, the heat-sensitive adhesive layer is formed 5 mm or more away from the folding position.

  In an example of the cylindrical label according to the present invention, the label base material is composed of a shrink film having heat shrinkability.

  The labeled container according to the present invention includes the cylindrical label and a container to which the cylindrical label is attached, and the cylindrical label is joined to the container surface by the heat-sensitive adhesive layer, The gap between the inner surface on the one end portion side of the label base material formed on the side of the seal portion and the container surface, and the core printing region are partitioned by the heat-sensitive adhesive layer. Features.

  The cylindrical label according to the present invention includes a core printing area selected as a protection target area. The core printing region is provided outside the predetermined length from the position corresponding to the other end toward the other end on the inner surface on the one end of the label base, and surrounds the periphery of the core printing region. Since a heat-sensitive adhesive layer is provided, according to the labeled container using the label, contents and water are prevented from entering between the core printing area and the container surface, and the appearance of the core printing area is good. Maintained. That is, in the labeled container of the present invention, the heat-sensitive adhesive layer surrounding the core printing area is in close contact with the surface of the container, and there are no gaps for the contents and water to enter around the core printing area. Thereby, even when the labeled container gets wet with the contents or water, the appearance of the core printing area is maintained.

  In addition, a cylindrical label is, for example, an elongated body in which a plurality of labels are connected before being attached to a container, and is folded and rolled in two folding positions to be stored and transported. If it is set as the structure which forms a heat sensitive adhesive layer so that a material may not face in the folded state, generation | occurrence | production of the blocking resulting from a heat sensitive adhesive layer can be prevented. On the other hand, like the cylindrical label of Patent Document 1, when the heat-sensitive adhesive is applied over the entire length of the upper and lower end portions of the inner surface of the label, the adhesive application portions overlap and come into contact with each other in the folded state of the label. The so-called blocking in which the inner surfaces are joined to each other easily occurs.

It is a figure which shows the cylindrical label which is the 1st Embodiment of this invention. It is AA sectional view taken on the line of FIG. It is an expanded view of the cylindrical label which is the 1st Embodiment of this invention. It is a figure which shows the modification of the form shown in FIG. It is a figure which shows the container with a label by which the cylindrical label which is the 1st Embodiment of this invention is mounted | worn with a container. FIG. 6 is a sectional view taken along line BB in FIG. 5. It is a figure which shows the modification of the 1st Embodiment of this invention. It is a figure which shows the cylindrical label which is the 2nd Embodiment of this invention. It is an expanded view of the cylindrical label which is the 2nd Embodiment of this invention. It is a figure for demonstrating the subject in the conventional labeled container, Comprising: It is a figure which shows a seal part.

Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings.
The drawings referred to in the embodiments are schematically described, and the dimensional ratios of the components drawn in the drawings may be different from the actual products. Specific dimensional ratios and the like should be determined in consideration of the following description.

  In this specification, the “inner surface” of the label base material is the surface of the label base material facing the inside of the cylindrical body, and the “outer surface” of the label base material faces the outside of the cylindrical body. Surface. Further, the axial direction of the cylindrical label is defined as “vertical direction”, and the vertical direction and the direction perpendicular to the thickness direction of the label are defined as “horizontal direction” in a state where the cylindrical label is folded flat. In addition, in this specification, the description of “substantially **” is intended to include not only completely parallel but also substantially recognized as being parallel when described with reference to substantially parallel.

<First Embodiment>
The cylindrical label 10 which is 1st Embodiment is explained in full detail, referring FIGS.
FIG. 1 is a view showing a cylindrical label 10, and FIG. 2 is a cross-sectional view taken along line AA in FIG. FIG. 3 is a diagram showing a state in which the seal portion 14 is peeled and the cylindrical label 10 is developed into a sheet shape, and the sheet is viewed from the inner surface side of the label substrate 11.

  As shown in FIGS. 1 to 3, a cylindrical label 10 is formed into a cylindrical body, and is folded into a flat shape at two folding positions, and a printed layer 12 formed on the substrate. With. In the present embodiment, the print layer 12 is formed on the inner surface of the label substrate 11. The cylindrical label 10 is folded into a flat shape at two folding positions, and is wound and stored, for example, in a roll shape. The cylindrical label 10 folded into a flat shape is stored and transported as an elongated body in which a plurality of labels are connected, and supplied to a labeler that manufactures a labeled container. A crease line 15 is formed at each of the two folding positions of the label substrate 11 along the vertical direction of the cylindrical label 10. Each crease line 15 is formed substantially parallel to each other, and is located at both left and right ends of the label in a state in which the cylindrical label 10 is folded flat.

  Hereinafter, in a state where the cylindrical label 10 is folded flat at two folding positions, a portion where a seal portion 14 described later is formed is referred to as a “label back portion 10b”, and a portion facing the back portion is referred to as “ Label front portion 10a ". Two crease lines 15 serve as a boundary between the label front surface portion 10a and the label back surface portion 10b.

  The cylindrical label 10 has a seal portion 14 formed along the vertical direction. The seal portion 14 is a joint portion for maintaining the label base material 11 in the shape of a cylindrical body, and the inner surface of the label base material 11 on one end (one circumferential end) side is the other end of the label base 11 It is formed by superimposing on the outer surface on the part (the other end in the circumferential direction) side and bonding the overlapped surfaces. In this embodiment, the seal part 14 is formed by welding at least a part of the overlapped surfaces with a solvent. Since the seal portion 14 is a portion where two films overlap each other, for example, when the cylindrical label 10 is attached to the container 21 described later, the inner surface on one end side of the label base material 11 and the surface of the container 21. A gap is formed between the two.

  Examples of the cylindrical label 10 include a heat-shrinkable shrink label, a stretchable stretch label, and a wound label that does not have heat-shrinkability and stretchability. The cylindrical label 10 is particularly preferably a shrink label, and will be described as a shrink label below.

  The label base material 11 is a shrink base material having heat shrinkability. A conventionally known resin film can be used for the label substrate 11. Specifically, polyester resins such as polyethylene terephthalate (PET) and polylactic acid (PLA), polystyrene resins such as styrene-butadiene copolymer (SBS) and styrene-acrylate copolymer, polyethylene resins ( PE), polyolefin resin such as polypropylene resin (PP), polyvinyl chloride resin, polyamide resin, and a film made of a mixture of two or more selected from thermoplastic resins such as acrylic resin. it can. Among these, a film composed of a polyester resin, a polystyrene resin, or a polyolefin resin is preferable.

  The thickness of the label substrate 11 is not particularly limited, but is preferably 10 μm to 100 μm, more preferably 15 μm to 80 μm, and particularly preferably 20 μm to 60 μm. The label substrate 11 may have either a single layer structure or a laminated structure. When the label substrate 11 is composed of a laminated film, the laminated film may be a laminate of films made of the same kind of resin, or may be a laminate of films made of different resins.

  The label substrate 11 is stretched (uniaxially stretched) in at least one direction and thermally contracted in the one direction (main stretched direction). The draw ratio is preferably about 2 to 8 times in the main drawing direction, for example. For example, the label base 11 may be stretched (biaxially stretched) at a magnification of about 2 times or less in a direction orthogonal to the main stretching direction. The thermal contraction rate of the label substrate 11 (heat treatment condition: immersed in warm water of 90 ° C. for 10 seconds) is preferably 20% to 80%, and preferably 30% to 80% with respect to the main stretching direction. Particularly preferred. The thermal shrinkage rate in the direction orthogonal to the main stretching direction is preferably 15% or less, particularly preferably 5% or less. The label base material 11 preferably has the main stretching direction as the circumferential direction of the cylindrical body.

  As described above, the print layer 12 is formed on the inner surface of the label substrate 11, for example. The print layer 12 is a layer for displaying, for example, a product name, design, product description, manufacturer / seller information, a barcode, and the like. The print layer 12 includes background printing such as white solid printing. In the present embodiment, the print layer 12 (print region) is formed in a wide range excluding a region having a predetermined width from the end of the label base 11 (see FIG. 3). At the one end edge in the circumferential direction of the label base material 11 where the seal portion 14 is formed, the predetermined width is larger than the other edge portions, and the width of the region where the print layer 12 is not formed is wide.

  The print layer 12 includes a core print region 12a selected as a protection target region. The core printing area 12a is an area including main display elements such as a product name, a main design, and a product description. The core printing area 12a is, for example, an area having a substantially rectangular shape in plan view, and is provided in the approximate center of the label front surface portion 10a, and has a background printing different from other areas. The print area including the core print area 12a can be formed in an arbitrary pattern according to the design or the like, and may be formed on both surfaces of the label substrate 11.

  The core printing region 12a is provided outside the range of a predetermined length from the position corresponding to the other end portion on the inner surface on the one end portion side of the label base material 11 toward the other end portion side. Since the range of the gap formed due to the seal portion 14 changes depending on the thickness of the label, the predetermined length is preferably set according to the thickness of the label. Specifically, it is preferably at least 2 times the thickness of the cylindrical label 10, more preferably 3 times or more, and particularly preferably 5 times or more. The predetermined length is, for example, 0.5 mm or more.

  The printing layer 12 is, for example, a gravure printing machine, a flexographic printing machine, an ink containing a coloring material such as a desired pigment or dye, a binder resin such as an acrylic resin or a urethane resin, a solvent, and various additives. It can be formed by a conventionally known printing machine such as a letterpress rotary printing machine. Although the thickness of the printing layer 12 is not specifically limited, 0.1 micrometer-15 micrometers are preferable, and 0.2 micrometer-10 micrometers are more preferable.

  The cylindrical label 10 includes a heat-sensitive adhesive layer 13 formed on the inner surface of the label substrate 11. The heat-sensitive adhesive layer 13 is provided so as to surround the core printing region 12a. In the present embodiment, the core printing region 12a selected as the protection target region exists only in the label front portion 10a, and the heat-sensitive adhesive layer 13 is formed only on the inner surface of the label front portion 10a. The heat-sensitive adhesive layer 13 is attached to the surface of the container to which the cylindrical label 10 is attached, and prevents contents and water from entering between the core printing region 12a of the cylindrical label 10 and the container surface. Fulfill.

  The heat-sensitive adhesive layer 13 is preferably formed so that the heat-sensitive adhesive layers 13 do not face each other in a state where the label substrate 11 (cylindrical label 10) is folded flat so that blocking does not occur. It is. The heat-sensitive adhesive layer 13 is preferably formed so as to avoid the crease line 15. In other words, the crease line 15 is formed so as not to overlap the heat-sensitive adhesive layer 13.

  The heat-sensitive adhesive layer 13 is formed using a heat-sensitive adhesive that does not exhibit adhesiveness at room temperature (25 ° C.) but is activated by heating and exhibits adhesiveness. As the heat-sensitive adhesive, a conventionally known heat-sensitive adhesive can be used. For example, a delayed tack type heat-sensitive adhesive, a part coat type heat-sensitive adhesive, or the like can be applied. The heat-sensitive adhesive layer 13 can be formed using a printing machine similar to the case of forming the printing layer 12, or using a conventionally known coater such as a bar coater, a comma coater, or a spray coater.

  The delayed tack type heat-sensitive adhesive does not exhibit tackiness at room temperature, is activated by heating, exhibits tackiness, and persists for a long time after cooling, and is applied by printing such as gravure coating. It is a workable adhesive. Examples of delayed tack-type heat-sensitive adhesives include emulsion-type adhesives in which a tackifier and a solid plasticizer are blended with a base resin such as ethylene-vinyl acetate copolymer, vinyl acetate-acrylic ester copolymer, and synthetic rubber. Etc. are exemplified. The part coat type heat-sensitive adhesive does not exhibit adhesiveness at room temperature, and is activated by heating and exhibits adhesiveness, but loses adhesiveness after cooling. For example, a thermal adhesive resin such as ethylene-vinyl acetate copolymer And a tackifier or the like dissolved or dispersed in an organic solvent, water or the like is an adhesive that can be applied by printing such as gravure coating, and is used after drying after coating.

  The width (the predetermined width) of the heat-sensitive adhesive layer 13 is preferably 5 mm to 10 mm, and particularly preferably 6 mm to 9 mm. When the area of the heat-sensitive adhesive layer 13 is large, it is assumed that the heat-sensitive adhesive layer 13 is not uniformly attached to the container surface, and bubbles appear and the appearance is deteriorated. If the width of the heat-sensitive adhesive layer 13 is within the above range, the occurrence of blocking can be prevented even when the force pressing the inner surfaces of the labels is large, and the appearance defect caused by the heat-sensitive adhesive layer 13 can be suppressed. it can.

  The thickness of the heat-sensitive adhesive layer 13 is not particularly limited, but is preferably about 4 μm to 5 μm when a delayed tack type heat sensitive adhesive is used, and about 1 μm to 2 μm when a part coat type heat sensitive adhesive is used. preferable. When the width of the heat-sensitive adhesive layer 13 is reduced, it is necessary to increase the thickness of the heat-sensitive adhesive layer 13 in order to maintain the same adhesive force as in the case of the wide width. For example, when the roll is tightly wound, blocking is performed. May occur. Considering this viewpoint, it is preferable to set the width of the heat-sensitive adhesive layer 13 within the above range.

  The heat-sensitive adhesive layer 13 is preferably formed in a band shape (in a plan view band shape) surrounding the core printing region 12a. The heat-sensitive adhesive layer 13 is formed in an annular shape surrounding the entire region, for example, along the contour line of the core print region 12a. In the present embodiment, a heat-sensitive adhesive layer 13 having a predetermined width is formed on the contour line of the core printing region 12a. That is, the heat-sensitive adhesive layer 13 is formed across the edge of the core printing area 12a and the printing area located outside the core printing area 12a.

  As described above, the heat-sensitive adhesive layer 13 is preferably formed avoiding the crease line 15. That is, the heat-sensitive adhesive layer 13 is not formed on the crease line 15. Preferably, the heat-sensitive adhesive layer 13 is formed at a distance of 5 mm or more from the crease line 15. This is because in the vicinity of the crease line 15, the force for pressing the inner surfaces of the labels increases, and even when the heat-sensitive adhesive layer 13 is formed out of the intended position at the time of design, it does not overlap with the crease line 15. It is for doing so.

  The cylindrical label 10 may have layers other than the printing layer 12 and the heat-sensitive adhesive layer 13 as long as the object of the present invention is not impaired. For example, an anchor coat layer may be formed between the label substrate 11 and the print layer 12.

FIG. 4 shows a modification of the embodiment shown in FIG.
The example shown in FIG. 4 is common to the example shown in FIG. 3 in that the heat-sensitive adhesive layer 13 is formed in a band shape surrounding the core printing region 12a. On the other hand, in the example shown in FIG. 4A, the heat-sensitive adhesive layer 13 is not formed on the core print region 12a, and the heat-sensitive adhesive layer 13 is located outside the core print region 12a. Are formed with a gap of a predetermined width therebetween. In this case, since the edge part of the core printing area | region 12a does not stick to the container surface, the appearance of the core printing area | region 12a improves further, for example.

  In the example shown in FIG. 4B, a plurality of core printing regions 12a having a substantially circular shape (perfect circle shape and elliptical shape) in a plan view are dotted, and the heat-sensitive adhesive layer 13 includes the core printing regions 12a. On the outer side, each core printing region 12a is formed in an annular shape. That is, the heat-sensitive adhesive layer 13 is not formed along the outline of the core printing region 12a, and has a substantially rectangular outline in plan view as in the example shown in FIGS. 3 and 4A. . In this case, even if the core printing region 12a has a complicated shape, the heat-sensitive adhesive layer 13 can be easily formed.

  The heat-sensitive adhesive layer 13 can be formed in various patterns according to the shape of the protection target region. For example, in the example shown in FIG. 4B, the heat-sensitive adhesive layer 13 having a substantially circular shape in plan view may be formed around the plurality of core printing regions 12a. Further, when the area of the core printing region 12a is small, the heat-sensitive adhesive layer 13 may be formed so as to cover the entire core printing region 12a. In addition, when a plurality of display sections such as letters and effects are selected as the core printing region 12a, and the seal portion 14 passes between the plurality of core printing regions 12a, a plurality of small heat-sensitive adhesive layers 13 are provided. By setting it as an area | region, you may prevent the penetration | invasion of the water etc. to each core printing area | region 12a.

  Hereinafter, an example of the manufacturing method of the cylindrical label 10 provided with the said structure is demonstrated.

  In the manufacturing process of the cylindrical label 10, first, a long label base material 11 (hereinafter referred to as “long body 11”) is prepared as the label base material 11. The elongated body 11 has heat shrinkability, and is stretched at a stretching ratio of about 2 to 8 times with respect to the width direction orthogonal to the longitudinal direction (hereinafter referred to as “TD direction”). Use one that has shrinkability. The long body 11 may be stretched at a stretch ratio of about 1.0 to 2 times with respect to the longitudinal direction (hereinafter referred to as “MD direction”). The stretching treatment can be performed at a temperature of, for example, 70 ° C. to 100 ° C. using a conventionally known method such as a roll method, a tenter method, or a tube method.

  Next, the printing layer 12 is formed on at least one surface of the long body 11. The printing layer 12 can be formed by a gravure printing machine using a desired ink. The print layer 12 is formed over a wide area of the long body 11 except for a portion where the seal portion 14 is formed in a later process. The core printing region 12a is a portion that becomes the label front surface portion 10a in a subsequent process, and has a predetermined length from the position corresponding to the other end portion toward the other end portion on the inner surface on the one end portion side of the label base material 11. Formed out of range. The print layer 12 may be formed on either an inner layer or an outer layer described later.

  Next, a heat-sensitive adhesive layer 13 is formed on one surface of the long body 11 on which the printing layer 12 is formed so as to surround the core printing region 12a. The heat-sensitive adhesive layer 13 can be formed by a conventionally known printing machine or coater using a heat-sensitive adhesive such as a delayed tack type heat-sensitive adhesive or a part coat type heat-sensitive adhesive. The heat-sensitive adhesive layer 13 is formed in a strip shape so as to avoid the vicinity of the portion where the crease line 15 is formed in a subsequent process.

  Next, the long body 11 on which the printing layer 12 and the heat-sensitive adhesive layer 13 are formed is formed into a cylindrical shape to form the seal portion 14. At this time, the long body 11 is formed into a cylindrical body so that one surface on which the printing layer 12 and the heat-sensitive adhesive layer 13 are formed becomes an inner surface. Specifically, a solvent is applied to at least one of the inner surface of one end edge in the TD direction and the outer surface of the other end edge, and the seal portion 14 continuous in the MD direction is formed by superimposing the solvent application portion on the other end edge. Form. Thereby, the cylindrical elongate body 11 provided with the printing layer 12 and the heat sensitive adhesive layer 13, ie, the elongate cylindrical label 10, is obtained.

  The obtained long cylindrical label 10 is folded into a flat shape at two folding positions, and is wound and stored, for example, in a roll shape. The long cylindrical label 10 folded in a flat shape is formed with crease lines 15 at both ends in the width direction.

  Hereinafter, the labeled container 20 in which the cylindrical label 10 having the above configuration is mounted on the container 21 will be described in detail with reference to FIGS. 5 and 6. FIG. 5 is a perspective view showing the labeled container 20, and FIG. 6 is a view showing a part of a cross section taken along line BB of FIG.

  As shown in FIG. 5, the labeled container 20 includes a cylindrical label 10 and a container 21 to which the label is attached. The container 21 has a substantially cylindrical container body 22 and a cap 23 attached to a neck portion (not shown) of the body. The container body 22 is slightly constricted in the center in the vertical direction, and has a shoulder that gradually decreases in diameter toward the neck. The cap 23 has a substantially cylindrical shape whose diameter is smaller than that of the container body 22. The cylindrical label 10 is mounted so as to cover the entire side surface of the container body 22 and to be hooked on the shoulder portion and the bottom portion.

  The container 20 with a label is obtained by, for example, supplying the container 21 to a steam tunnel and heating and shrinking the cylindrical label 10 after the cylindrical label 10 is externally fitted to the container body 22 of the container 21 in the shrink labeler. It is done. In the labeler, the long cylindrical label 10 is cut into individual label sizes. The cylindrical label 10 is mounted following the shape of the container body 22 by heat shrinking. And in the heating process which shrinks the cylindrical label 10, the heat sensitive adhesive layer 13 is activated and adhesiveness is expressed.

  As shown in FIG. 6, in the labeled container 20, the cylindrical label 10 is joined to the surface of the container 20 (container body 22) by the heat-sensitive adhesive layer 13. The heat-sensitive adhesive layer 13 divides the gap between the inner surface on one end side of the label base 11 formed on the side of the seal portion 14 and the surface of the container 20 and the core printing region 12a. Yes. Since the heat-sensitive adhesive layer 13 is formed in a band shape surrounding the periphery of the core printing region 12a, the gap 24 between the core printing region 12a and the surface of the container body 22 is closed without any gaps connected to the outside. It becomes space. On the other hand, the gap between the portion of the cylindrical label 10 located outside the heat-sensitive adhesive layer 13 and the surface of the container body 22 is a space in which water can enter.

  As described above, according to the labeled container 20 using the cylindrical label 10, the cylindrical label 10 is attached to the surface of the container main body 22 through the heat-sensitive adhesive layer 13 surrounding the core printing region 12 a. ing. The heat-sensitive adhesive layer 13 divides the gap between the inner surface on one end side of the label base 11 formed on the side of the seal portion 14 and the surface of the container 20 and the core printing region 12a. Yes. Accordingly, there is no gap for the contents and water to enter around the core printing region 12a, and a sealed space (gap 24) is formed inside surrounded by the heat-sensitive adhesive layer 13. Thereby, even when the labeled container 20 gets wet with the contents and water, the contents and water may enter the gap 24 between the core printing region 12a of the cylindrical label 10 and the surface of the container body 22. This prevents the appearance of the core printing area 12a.

  In addition, although the cylindrical label 10 is stored and transported in a state of being folded at two crease lines 15, for example, the heat-sensitive adhesive layer 13 is formed so as not to face the label base material 11 in a folded state. Thus, occurrence of blocking due to the heat-sensitive adhesive layer 13 is prevented.

  FIG. 7 is a view showing a modification of the cylindrical label 10 and is a view of the label in a state of being mounted on a container (not shown) as viewed from the inner surface side. In the example shown in FIG. 7, the heat-sensitive adhesive layer 13 extends to the gap 16 and is provided on the inner surface of the label substrate 11 on the one end 11 a side. That is, the heat-sensitive adhesive layer 13 is also provided on the portion facing the gap 16 formed due to the seal portion 14. However, also in this case, the core printing region 12a needs to be provided outside the predetermined length range from the position corresponding to the other end portion 11b toward the other end portion 11b side on the inner surface on the one end portion 11a side of the label base material 11. There is. Thereby, even when the heat-sensitive adhesive layer 13 is provided in the portion facing the gap 16, the contents and water are prevented from entering between the core printing region 12a and the container surface.

<Second Embodiment>
The cylindrical label 30 according to the second embodiment will be described in detail with reference to FIGS. 8 and 9. FIG. 8 is a view showing the cylindrical label 30 (the seal portion 14 is omitted). FIG. 9 is a view showing a state in which the seal portion 14 is peeled and the cylindrical label 30 is developed into a sheet shape, and the sheet is viewed from the inner surface side of the label base material 11. In the following, differences from the first embodiment will be mainly described, and the same or similar configurations as those in the first embodiment will be denoted by the same reference numerals, and redundant description will be omitted.

  As shown in FIGS. 8 and 9, the cylindrical label 30 has a cylindrical shape in that it includes a heat-sensitive adhesive layer 13 formed in a band shape surrounding the core printing region 12 a located substantially at the center of the label front surface portion 30 a. Common with the label 10. On the other hand, the cylindrical label 30 is different from the cylindrical label 10 in that a heat-sensitive adhesive layer 33 is also provided on the label back surface portion 30b. The heat-sensitive adhesive layer 33 surrounds the core printing region 12b on the label back surface portion 30b, and is formed in a band shape avoiding the seal portion 14 and the crease line 15. The core printing area 12b includes information necessary for using a product (eg, usage precautions).

  That is, on the cylindrical label 30, the heat-sensitive adhesive layers 13 and 33 are formed on the inner surfaces of the label front portion 30a and the label back portion 30b facing each other in a flat folded state. In the present embodiment, in the state where the cylindrical label 30 is folded flat, the heat-sensitive adhesive layer 33 is positioned outside the heat-sensitive adhesive layer 13 so that the two layers do not face each other. Therefore, the heat-sensitive adhesive layer 13 and the heat-sensitive adhesive layer 33 do not overlap and come into contact with each other, and blocking due to the heat-sensitive adhesive layer is prevented.

  10, 30 cylindrical label, 10a, 30a label front part, 10b, 30b label back part, 11 label base material, 11a one end part, 11b other end part, 12 printing layer, 12a, 12b core printing area, 13, 33 Adhesive layer, 14 seal part, 15 crease line, 16 gap, 20 container with label, 21 container, 22 container body, 23 cap, 24 gap

Claims (7)

A label base that is formed into a cylindrical body and is folded flat at two folding positions;
A printed layer formed on the label substrate;
In a cylindrical label having an inner surface on one end side of the label base material and an outer surface on the other end side of the label base material, and a seal part formed by adhering the superposed surfaces,
The printing layer includes a core printing area,
The core printing region is an inner surface of the label base on the one end side, and is provided outside a predetermined length range from a position corresponding to the other end toward the other end.
A cylindrical label, characterized in that a heat-sensitive adhesive layer is provided on the inner surface of the label substrate so as to surround the core printing region.   The said thermosensitive adhesive layer is a cylindrical label of Claim 1 formed so that the said layers may not face each other in the state by which the said label base material was folded.   The cylindrical label according to claim 2, wherein the heat-sensitive adhesive layer is formed in a band shape surrounding the core printing region.   The cylindrical label according to claim 3, wherein the heat-sensitive adhesive layer has a width of 5 mm to 10 mm.   The cylindrical label according to any one of claims 2 to 4, wherein the heat-sensitive adhesive layer is formed 5 mm or more away from the folding position.   The said label base material is a cylindrical label of any one of Claims 1-5 comprised from the shrink film which has heat shrinkability. The cylindrical label according to any one of claims 1 to 6,
A container equipped with the cylindrical label,
The cylindrical label is joined to the container surface by the heat-sensitive adhesive layer,
A label in which a gap between the inner surface on the one end portion side of the label base formed on the side of the seal portion and the container surface and the core printing region are partitioned by the heat-sensitive adhesive layer. With container.

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