JP2005193984A - Container with tubular label and heat shrink type tubular label - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a container having a label for easily opening a screw cap preventing the idle turning of the label as to a container with a label mounted with a tubular label having a non-woven fabric layer. <P>SOLUTION: This container with a tubular label has a tubular body part 22 and a discharge opening 24. A tubular label 3 laminated with an non-woven cloth layer 8 is mounted on the body part 22 of the container 2 where a screw cap 25 is mounted for opening and closing the opening 24. The running torque of the label 3 relative to the body part 22 is structured larger than the opening torque of the cap 25. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a container with a cylindrical label to which a cylindrical label having a nonwoven fabric layer is attached, and a heat-shrinkable cylindrical label having a nonwoven fabric layer.

  As a container for filling beverages such as coffee, tea, and tea, a bottle-shaped container is known in which a screw cap that can be attached and detached by rotating is attached to the top of a cylindrical body. Such bottle containers have been supplied in large quantities in recent years because the spout can be resealed by a screw cap, so that it is not necessary to drink a beverage at a time and is excellent in portability. By the way, as a sales form of a filling container in which a beverage is filled in this bottle container, it is carried out by selling in a heating thermostat (hot warmer) or the like. However, since the filling container taken out from the hot warmer is usually about 50 to 60 ° C., it feels hot when it is held. In particular, when the bottle container is made of metal, it feels hotter than a synthetic resin container such as a PET bottle or a glass container. In view of such points, Japanese Patent Application Laid-Open No. 2003-246354 uses a heat-shrinkable cylindrical label in which a nonwoven fabric is laminated on the inner surface of a heat-shrinkable film as a cylindrical label to be attached to the body of a bottle container. It is disclosed. When a container with a label on which such a nonwoven fabric is laminated holds the container body from above the label with one hand, the heat is blocked by the nonwoven fabric layer so that the heat of the filling is not easily transmitted to the hand. When eating and drinking, the screw cap is rotated with the other hand to open it.

  However, the labeled container having the nonwoven fabric layer on the inner surface has a problem that it is difficult to open the screw cap. In particular, such a problem is remarkable when it is mounted on a cylindrical body portion in which irregularities such as ribs are not formed. This problem is that the nonwoven fabric layer on the inner surface of the label and the body of the container are idle, that is, the container itself slips along the nonwoven fabric layer when the screw cap is rotated, even though the screw cap is being rotated. There is a cause to end. In this regard, the above Japanese Patent Application Laid-Open No. 2003-246354 describes an example of a suitable non-woven fabric for laminating a non-woven fabric on a film by wet lamination and imparting heat insulation, but the problem that the cylindrical label is idled. No point or solution is disclosed or suggested.

JP-A-2003-246354 [0005], [0018], [0040] and FIG.

  Therefore, the present invention provides a labeled container that can prevent the label from slipping and can easily open a screw cap in a labeled container on which a cylindrical label provided with a nonwoven fabric layer is attached. Let it be an issue. Moreover, this invention makes it a subject to provide the heat-shrinkable cylindrical label which is hard to idle | slow with respect to a container after mounting | wearing a container in the heat-shrinkable cylindrical label provided with the nonwoven fabric layer.

According to a first means of the present invention, a cylindrical label in which a nonwoven fabric layer is laminated on a barrel portion of a container having a cylindrical barrel portion and a spout and attached with a screw cap capable of opening and closing the spout is provided. Provided is a container with a cylindrical label that is mounted and configured such that the rotational torque of the cylindrical label with respect to the cylindrical body is larger than the opening torque of the screw cap.
Here, the rotational torque with respect to the cylindrical body of the cylindrical label means that the cylindrical label is fixed to the cylindrical body of the container and the container side is fixed and the cylindrical label is grasped by hand from above. The maximum torque value when the cylindrical label begins to move when it is rotated in the circumferential direction. The screw cap opening torque means that the screw cap is fixed and the cylindrical body of the container is held by hand. The maximum torque value when the screw cap starts to move when rotated in the circumferential direction.

  The container with a cylindrical label has a nonwoven fabric layer laminated on the label, so that the heat of the heated filling is not easily transmitted to the handle, and the rotational torque of the cylindrical label is more than the opening torque of the screw cap. Since it is large, the cylindrical label does not rotate freely when the screw cap is turned, and therefore the screw cap can be easily opened.

Further, the second means of the present invention is that the label base material in which the nonwoven fabric layer is laminated on the inner surface of the heat-shrinkable film layer is formed into a cylindrical shape with the nonwoven fabric layer inside, and is formed on the cylindrical body portion of the container. In the heat-shrinkable cylindrical label that can be externally attached, at least a part of the container contact surface of the cylindrical label is provided with an adhesion part that has greater adhesion to the container body than the surface of the nonwoven fabric layer. A heat-shrinkable cylindrical label is provided.
Such a heat-shrinkable cylindrical label is provided with an adhesion portion having a greater adhesion to the container body than the surface of the nonwoven fabric layer on a part of the container contact surface, so that the entire surface of the container contact surface is composed of the nonwoven fabric layer. Compared with the conventional cylindrical label currently used, the idling of a label can be prevented. Therefore, when the cylindrical label is mounted on, for example, a cylindrical body of a container provided with a screw cap, the screw cap is easily opened by grasping the container body from above the cylindrical label and turning the screw cap. be able to.

Further, according to a third means of the present invention, a label base material having a nonwoven fabric layer laminated on the inner surface of a heat-shrinkable film layer is formed in a cylindrical shape with the nonwoven fabric layer inside, and is externally attached to the container body. In a possible heat-shrinkable cylindrical label, a region having no nonwoven fabric layer is provided on a part of the container contact surface of the cylindrical label, and a heat-sensitive adhesive is applied to at least a part of this region. A heat-shrinkable cylindrical label is provided.
Since the heat-shrinkable cylindrical label is coated with a heat-sensitive adhesive on a part of the container contact surface, it does not have an adhesive force when it is externally inserted into the container body, and is preferably externally fitted. On the other hand, when the shrink is mounted on the container body, the cylindrical label can be partially bonded to the body by the heat. Therefore, such a cylindrical label is attached to, for example, a cylindrical body portion of a container provided with a screw cap, and when the screw cap is turned by gripping the body portion from above the cylindrical label, the label is difficult to idle. Therefore, the screw cap can be easily opened.

  In the container with a cylindrical label according to the present invention, the temperature of the filling is not easily transmitted to the handle even if the container is heated, and the cylindrical label is difficult to idle when the screw cap is opened. Can be easily opened. Further, the heat-shrinkable cylindrical label according to the present invention has a heat insulating property, and further, when attached to the cylindrical body of the container, it is difficult to idle around the body, so that the screw cap can be easily opened. A container with a label can be provided.

Hereinafter, the present invention will be specifically described with reference to the drawings.
(First embodiment)
1 to 3, reference numeral 1 denotes a container with a cylindrical label in which a heat-shrinkable cylindrical label 3 having a nonwoven fabric layer 8 is shrink-mounted on at least a body portion 22 of the container 2. The container 1 with a cylindrical label is configured such that the rotational torque of the cylindrical label 3 with respect to the container body 22 is larger than the opening torque of the screw cap 25.
The container 2 is formed with a cylindrical body portion 22 and a spout 24, and a sealing screw cap 25 is attached to the spout 24. Specifically, the container 2 has a bottom surface portion 21, a hollow body portion 22 following the bottom surface portion 21, a shoulder portion 23 gradually narrowing from the body portion 22, and a spout 24 formed above the shoulder portion 23. Yes. The body portion 22 of the container 2 is formed in a substantially cylindrical shape, and the outer surface of the body portion 22 is a smooth surface on which irregularities such as ribs are not formed. Further, the spout 24 includes a substantially cylindrical peripheral wall portion 241 having a male screw portion formed on the outer surface, and an opening portion 242 formed at the upper end of the peripheral wall portion 241, and the central axis O of the opening portion 242 is It is formed so as to coincide with the central axis of the body portion 22. The screw cap 25 includes a sealing portion 251 that closes the opening 242 and a peripheral wall portion 252 that extends downward from the periphery of the sealing portion 251, and is formed on the inner peripheral surface of the peripheral wall portion 252 with a male screw portion of the spout 24. A female screw portion (not shown) to be screwed is formed. Therefore, when the screw cap 25 is rotated around the central axis O, the screw cap 25 can be removed from the spout 24.

The material of the container 2 is not particularly limited, such as a metal made of aluminum, steel (including an aluminum plate or a steel plate on which a synthetic resin film is laminated), a synthetic resin made of polyethylene terephthalate, glass, or the like. Although it can be formed of a known material, since the heat of the filler is easily transmitted and the label is relatively slippery, for example, aluminum or polyethylene terephthalate film laminated (including resin-coated one) on the surface It is effective to attach the cylindrical label 3 of the present invention to a metal container 2 such as a steel bottle can. The material of the screw cap 25 may be the same type as that of the container 2 (for example, metal, synthetic resin, etc.), or may be a different material.
The diameter of the trunk | drum 22 and the screw cap 25 is not specifically limited, For example, the diameter of the trunk | drum 22 is about 30-80 mm, and the diameter of the sealing part 251 of the screw cap 25 is about 20-40 mm. . However, if the diameter of the screw cap 25 is large, it is rotated by a relatively large force when it is opened, and the cylindrical label 3 attached to the screw cap 25 having a larger diameter tends to run idle. As described above, it is particularly effective to attach the cylindrical label 3 of the present invention to the container 2 having the screw cap 25 having a diameter of 38 mm or more. Here, when the container body 22 having the screw cap 25 is a general-purpose beverage bottle can (bottle metal can) made of steel or aluminum, the opening torque of the screw cap 25 having a diameter of 38 mm is about 1.47 to The opening torque of the screw cap 25 having a diameter of 1.96 N · m (15 to 20 kgf · cm) and a diameter of 28 mm is approximately 1.37 to 1.57 N · m (14 to 16 kgf · cm). The labels 3 attached to these containers 2 have a rotational torque with the container body 22 of, for example, 1.96 N · m (20 Kgf · cm) or more, preferably 2.56 N · m (23 Kgf · cm) or more. It is possible to reliably prevent idling. In addition, the container 2 is designed so that the opening torque of the screw cap 25 is 0.98 to 1.57 N · m (10 to 16 Kgf · cm) so that an elderly person or a child can open the screw cap 25 without difficulty. For example, when it is attached to the container 2, it is preferably 1.57 N · m (16 Kgf · cm) or more and 1.96 N · m (20 Kgf · cm) or more.

The heat-shrinkable cylindrical label 3 has both end portions 5a of a label substrate 5 in which a non-woven fabric layer 8 is provided on the inner surface of the heat-shrinkable film layer 6 and a close-contact portion 9 is provided on a part of the non-woven fabric layer 8. 5b is overlapped to form a cylindrical shape, and this overlapped portion is center-sealed with a solvent or an adhesive to form a cylindrical body in which the center seal portion 4 is formed, and can be externally fitted to the body portion 22 of the container 2. Is formed.
As shown in FIG. 3B, the label base material 5 is formed in a rectangular shape having a predetermined length that can be covered from the body portion 22 to the shoulder portion 23 of the container 2, for example. It consists of a laminated film provided in the order of layer 6, design print layer 7, adhesive layer (not shown), and non-woven fabric layer 8. Adhesive is applied. Specifically, the inner surface of the film layer 6 is used as a bonding margin for forming the center seal portion 4 on the inner surface of the one side end portion 5a on the inner surface of the other side end portion 5b. Has a predetermined width (for example, about 3 to 8 mm), and a sticking portion 5c exposed in a vertical belt shape is secured. A design printing layer 7 is provided on the entire inner surface of the film layer 6 except for the sticking portion 5c, and a nonwoven fabric layer 8 is laminated on the entire inner surface of the design printing layer 7 with an adhesive layer interposed therebetween.
The film layer 6 is made of a colorless transparent or colored transparent heat-shrinkable film through which the design printing layer 7 can be seen through. The material of the film layer 6 is not particularly limited. For example, a polyester resin such as polyethylene terephthalate or an olefin type such as polypropylene. Examples thereof include films made of one or a mixture of two or more selected from thermoplastic resins such as resins, styrene resins such as styrene-butadiene copolymers, cyclic olefin resins, and vinyl chloride resins. In order to make it shrink | contract with the nonwoven fabric layer 8, it is preferable to use the polyester-type resin film with a comparatively strong shrinkage force. Moreover, you may be comprised with the laminated | multilayer film which laminated | stacked two or more types of different films. A heat-shrinkable film can be obtained by forming a film by a known production method and stretching the film. The stretching treatment is usually at a temperature of about 70 to 110 ° C., and is 2.0 to 8.0 times in the width direction (in the case of a cylindrical label, the circumferential direction; hereinafter referred to as the circumferential direction), preferably 3.0 to It is performed by stretching about 7.0 times. Furthermore, the longitudinal direction when the longitudinal label is used. Hereinafter, the stretching process may be performed at a low magnification of 1.5 times or less. The obtained film becomes a uniaxially stretched film or a biaxially stretched film slightly stretched in a direction orthogonal to the main stretch direction. The thickness of the film layer is preferably about 20 to 60 μm.

The film layer 6 is exemplified by a heat-shrinkable film having a heat shrinkage rate in the circumferential direction of about 20 to 80% when immersed in warm water of 85 ° C. for 10 seconds, for example. Moreover, the thermal contraction rate in the vertical direction is exemplified by about -3 to 10%.
However, heat shrinkage rate (%) = [{(original length in circumferential direction (or longitudinal direction)) − (length after immersion in circumferential direction (or longitudinal direction))} / (circumferential direction (or longitudinal direction) ) Original length)] × 100.

Furthermore, the film layer 6 preferably has a strong clamping force to the container after heat shrinkage. For example, it is preferable to use a film having a shrinkage stress in the circumferential direction of the film layer of 3 MPa or more. Is more preferably 5 MPa or more. Examples of such films include polyester resin films such as polyethylene terephthalate films. By using the film layer 6 having such shrinkage stress, it is possible to more reliably prevent slipping of the attached cylindrical label 3.
The shrinkage stress referred to in this specification means that the film is cut to 80 mm in the circumferential direction and 15 mm in the longitudinal direction, and both ends in the circumferential direction are stress measuring devices (trade name: Autograph, manufactured by Shimadzu Corporation). This is the shrinkage stress after being held on a chuck (distance between chucks: 50 mm), immersed in warm water at 85 ° C. for 10 seconds, and left at room temperature for 3 minutes.

The design printing layer 7 is provided with display printing such as a predetermined display such as a product name, a pattern, and description, and solid printing such as white, etc. in a single color or multicolor printing by gravure printing or the like.
The adhesive layer is not particularly limited as long as it is an adhesive capable of adhering the nonwoven fabric layer 8 and the film layer 6 (design printing layer 7), and is an adhesive used in a normal dry laminating method or wet laminating method. Agents such as solvent-based adhesives such as acrylic, polyurethane, vinyl acetate, vinyl chloride, and rubber or water-soluble adhesives can be used.
As the non-woven fabric layer 8, fibers such as polyolefins such as polyester, polyethylene, and polypropylene, polyolefin elastomers, rayon, nylon, and cupra were produced in a sheet shape by an adhesion method, a needle punch method, a spun bond method, a melt blow method, and the like. Nonwoven fabric can be used. As the fibers constituting the nonwoven fabric, solid fibers, hollow fibers, or mixed fibers thereof can be used, and it is preferable to use hollow fibers or mixed fibers thereof because they are more excellent in heat insulation. The fiber length is preferably a long-fiber non-woven fabric sheet in terms of strength due to a three-dimensional network structure formed by entanglement of fibers and the handleability of the sheet, and a short-fiber non-woven fabric is preferable in terms of sheet cutting suitability. As the physical properties of the nonwoven fabric sheet, for example, the basis weight is preferably about 10 to 50 g / m ² (preferably 15 to 30 g / m ² ), the thickness is about 80 to 200 μm, and the denier is about 2 to 5 d. Specific examples of such a nonwoven fabric include “Marix” manufactured by Unitika Ltd., “Bonden” manufactured by Toyobo Co., Ltd., “Ecule”, “Unicel” manufactured by Unicel Corporation.

  A colored nonwoven fabric can also be used as the nonwoven fabric layer 8. The color of the colored nonwoven fabric is preferably one that is integrated with the design printing layer 7 in design, for example, the same color as the solid printing of the design printing layer 7, or the same color as the outer surface of the container. Illustrated. By using such a colored nonwoven fabric, the upper and lower edges of the nonwoven fabric layer 8 can be made inconspicuous in the cylindrical label 3 in the mounted state. That is, when the cylindrical label 3 is attached to the container 2, the film layer 6 is slightly shrunk in the vertical direction and shifted so as to slide vertically, so that the upper and lower edges of the non-woven fabric layer 8 can be seen at the upper and lower edges of the label. Although there is a possibility of coming out, by using the above-mentioned colored nonwoven fabric, even if the upper and lower edges of the nonwoven fabric layer 8 come out, it can be visually disguised so as to be melted into the design printing layer 7 or the outer surface of the container. Will not be damaged.

  The close contact portion 9 provided on a part of the inner surface of the nonwoven fabric layer 8 is formed by applying a heat-sensitive adhesive that can be bonded by heating in a strip shape from the upper edge 5d to the lower edge 5e of the label substrate 5. Yes. The width and number of the close contact portions 9 are not particularly limited, and the width of the contact portions 9 is generally disadvantageous as long as it adheres to the body portion 22 of the container 2 so that the cylindrical label 3 does not idle. What is necessary is just to form in about 2-20 mm, and at least 1 place should just be provided. As the heat-sensitive adhesive that can be bonded by heating, for example, a heat-melt adhesive, a heat-sensitive adhesive such as a part coat-type heat-sensitive adhesive, or a delayed tack-type heat-sensitive adhesive can be used. Among these, in the present embodiment where coating is performed from above the nonwoven fabric layer 8, it is preferable to use a hot-melt adhesive that can be applied by melt extrusion coating because it does not easily penetrate into the nonwoven fabric layer 8. Hot melt adhesives are adhesives that are not adhesive at room temperature but can be bonded by heating, and can be applied by heating and melting, such as ethylene-vinyl acetate copolymer and ethylene acrylic. Examples include those in which an additive such as a tackifier is blended with a base resin such as an ethylene resin such as an acid copolymer or a styrene-butadiene block copolymer. In addition, the part coat type heat-sensitive adhesive becomes adhesive by heating in the same manner as the hot melt type adhesive, and a heat adhesive resin such as ethylene-vinyl acetate copolymer and a tackifier are dissolved in an organic solvent or the like. The dispersed solution is an adhesive that can be applied by printing such as gravure coating, and is used after drying after coating. The delayed tack-type heat-sensitive adhesive is an adhesive that is activated by heating to produce adhesiveness and that persists for a long time after cooling and can be applied by printing such as gravure coating, Examples thereof include an emulsion type in which a tackifier and a solid plasticizer are blended with a base resin such as an ethylene-vinyl acetate copolymer, a vinyl acetate-acrylic ester copolymer, and a synthetic rubber.

The heat-shrinkable cylindrical label 3 and the labeled container 1 can be manufactured, for example, by the following method.
A design printing layer 7 is provided by gravure printing on the inner surface of the film layer original fabric sheet having a predetermined width by gravure printing, and a non-woven fabric adhesive adhesive is applied from above using a gravure roll plate or the like. An adhesive layer is provided, guided to the solvent recovery zone, the solvent is blown off, the adhesive layer is made semi-dry, and then the nonwoven fabric sheet is superposed on the adhesive layer to form a number of label groups. A continuous label base material in which the material 5 is connected in the longitudinal direction is obtained. This continuous body (those cut into a predetermined width) is wound up into a roll shape, this base material continuous body roll is mounted on a bag making apparatus (tubular processing apparatus), and the label base material continuous body is pulled out from this roll. A hot melt adhesive is applied in the sheet feeding direction (longitudinal band) by placing molten hot melt on the inner surface of the nonwoven fabric sheet through a nozzle. Then, a solvent or an adhesive is applied to the sticking part 5c secured at one end through a nozzle and formed into a cylindrical shape with a former, and the above-mentioned sticking is applied to the outer surface of the other end of the base material continuous body. By overlapping and sealing the landing portions, a continuous label body in which the cylindrical labels 3 are continuously connected is obtained. A cylindrical label 3 is obtained by flattening this and cutting it in the width direction at a predetermined length, and it is fitted onto the container body 22 and led to a shrink tunnel to thermally contract the cylindrical label 3. The container 1 with a cylindrical label can be obtained. In addition, you may use together the heating apparatus which heats a heat sensitive adhesive in a spot as needed.

  Since the container 1 with a cylindrical label is provided with a close contact portion 9 made of an adhesive that can be bonded by heating on a part of the container contact surface of the cylindrical label 3, the cylindrical barrel is heated by heat during shrink mounting. The cylindrical label 3 can be partially bonded to the portion 22. Since the partially bonded container 1 with a cylindrical label is in close contact with the container 2, the rotational torque of the cylindrical label 3 is extremely large as compared with the opening torque of the screw cap 25. Therefore, even if the nonwoven fabric layer 8 is in contact with the cylindrical body portion 22, the cylindrical label 3 does not run idle. Therefore, when the container body 22 is grasped from the outer surface of the cylindrical label 3 with one hand and the screw cap 25 is turned with the other hand, it can be easily opened. Moreover, since the nonwoven fabric layer 8 is laminated | stacked on the whole surface of the cylindrical label 3, even if the container 1 with a cylindrical label is heated, the temperature of the filling transmitted to a handle can be eased reliably.

Next, a modification of the first embodiment will be described.
As a means for providing the contact portion 9 on the container contact surface of the cylindrical label 3, for example, a synthetic resin film is formed on the container contact surface of the cylindrical label 3, instead of applying various heat-sensitive adhesives. May be. For example, in order to form the contact portion 9, as shown in FIG. 4, a coating layer 9 ′ made of a synthetic resin may be provided by melt extrusion coating or the like so as to be overcoated on substantially the entire inner surface of the nonwoven fabric layer 8. By providing the coating layer 9 ′ on the inner surface of the nonwoven fabric layer 8, the adhesion between the container body 22 and the container contact surface of the cylindrical label 3 is improved as compared with the case where the surface of the nonwoven fabric layer 8 is in contact. Thus, idling of the cylindrical label 3 can be prevented. The covering layer 9 ′ may be a relatively thin layer (for example, about 10 to 15 μm) for the purpose of preventing slipping. As a synthetic resin constituting the covering layer 9 ′, the rotational torque of the cylindrical label 3 with respect to the container body 22 is 1.96 N · m (20 Kgf · cm) or more, preferably 2.56 N · m (23 Kgf · cm). For example, olefinic resins such as low-density polyethylene and polypropylene, and ethylene-vinyl acetate copolymers are exemplified.

(Second Embodiment)
2nd Embodiment concerns on the heat-shrinkable cylindrical label which has the area | region where the nonwoven fabric layer is not provided in part. Hereinafter, parts different from those of the first embodiment will be mainly described, description of similar structures may be omitted, and terms and figure numbers may be used.
As shown in FIGS. 5 and 6, the heat-shrinkable cylindrical label 3 of the present embodiment has a region 10 (hereinafter referred to as “this region”) having a predetermined width and a non-woven fabric layer 8 on both sides of the center seal portion 4. In addition, a region that does not have the nonwoven fabric layer 8 is sometimes referred to as a “non-heat-insulating region 10”). The non-insulating region 10 is provided in a band shape from the upper edge to the lower edge of the cylindrical label 3, and the length L in the circumferential direction is 50% or less of the total peripheral length of the cylindrical label 3, The size is preferably set to 40% or less. Furthermore, two perforations 11 and 11 are formed in the non-insulating region 10 with the center seal portion 4 interposed therebetween. As the perforation 11, a cut (for example, a length of about 0.2 to 3.0 mm) and a non-cut are formed intermittently, or a needle hole-like cut and a non-cut are formed intermittently And so on.

  As shown in FIG. 6 (b), the label substrate 5 constituting the cylindrical label 3 has a nonwoven fabric layer 8 laminated on the inner surface of the design print layer 7 with an adhesive layer interposed therebetween. The non-woven fabric layer 8 in the form is shorter in width than that in the first embodiment, and has a predetermined width from the one side end portion 5a and the other side end portion 5b to the inside (near the center in the width direction). It is laminated in the range excluding minutes. Therefore, on the container contact surface of the label base material 5, a heat insulating region in which the nonwoven fabric layer 8 is provided in the center in the width direction, and a non-insulating material in which the inner surface of the film layer 6 (design printing layer 7) is exposed on both sides of this region. Region 10 is formed. In this non-insulating region 10, perforations 11 are engraved from the upper edge 5 d to the lower edge 5 e of the label base material 5 at a position near the inside of the portion to be bonded for forming the center seal portion 4. Furthermore, the non-insulating region 10 is provided with a close contact portion 9 by applying a heat-sensitive adhesive. The close contact portion 9 is provided at a predetermined position between the perforation 11 and the side edge of the nonwoven fabric layer 8 in the inner surface of the non-insulating region 10. As the heat-sensitive adhesive constituting the contact portion 9, the hot-melt adhesive, the part coat-type heat-sensitive adhesive, the delayed tack-type heat-sensitive adhesive, or the like can be used, but it can be applied by a printing method such as gravure coating. It is preferable to use a heat sensitive adhesive such as a part coat type heat sensitive adhesive or a delayed tack type heat sensitive adhesive.

  The heat-shrinkable cylindrical label 3 and the container 1 with the cylindrical label are provided with a part coat type heat-sensitive adhesive and a delayed tack type when the design print layer 7 is provided by printing on the inner surface of the film layer original sheet having a predetermined width. A heat-sensitive adhesive is applied with a gravure roll plate, and a non-woven fabric sheet is laminated so as not to overlap with the portion where the adhesive is applied, and then the heat-shrinkable cylinder is made in the same manner as in the first embodiment. A cylindrical label 3 can be obtained by externally inserting it into the container 2 and thermally shrinking it.

Similarly to the first embodiment, the cylindrical label 3 of the second embodiment is coated with a heat-sensitive adhesive on a part of the container contact surface. The cylindrical label 3 can be partly adhered to. In such a container 1 with a cylindrical label, since the label 3 is in close contact with the container 2, the rotational torque of the cylindrical label 3 is extremely large compared to the opening torque of the screw cap 25. Therefore, it is possible to prevent the cylindrical label 3 from slipping when the screw cap 25 is opened.
Moreover, since the non-heat insulation area | region 10 which does not have the nonwoven fabric layer 8 is formed, the heat sensitive adhesive which can be applied by printing can be used as a heat sensitive adhesive. Specifically, when a part coat type heat-sensitive adhesive or a delayed tack type heat-sensitive adhesive is applied to the nonwoven fabric layer 8, since the adhesive soaks into the nonwoven fabric, a relatively large amount of adhesive is required. It is preferable to use a hot melt type adhesive, but since the hot melt type adhesive cannot be applied by printing, it cannot be applied freely at a desired location and size (design). There are drawbacks. However, when part coating type heat-sensitive adhesive or the like cannot be printed and applied in the printing process due to the limitation on the number of colors for design printing, it is preferable to use a hot-melt adhesive that can be applied during cylindrical processing. On the other hand, by providing the non-insulating region 10 with the film layer 6 exposed as in the present embodiment, a heat-sensitive adhesive that can be applied by printing can be used. If this is partially printed in a predetermined shape, for example, In addition, it can be formed in an arbitrary design such as a dot shape or a mesh shape. Furthermore, since the printing coating can be performed on the non-insulating region 10, the contact portion 9 can be formed with a small amount of adhesive. Further, at the time of manufacturing, since the heat-sensitive adhesive can be printed as part of the printing process when design printing is performed on the film layer 6, the manufacturing process can be simplified as compared with the first embodiment. .

Furthermore, by providing the non-insulating region 10 in a part of the cylindrical label 3, it is possible to sense the temperature of the filling when the body 22 of the container 2 is gripped. That is, as in the first embodiment, if the nonwoven fabric layer 8 is substantially laminated on substantially the entire inner surface of the film layer 6, the temperature of the filling is difficult to be transmitted when it is held. It is not possible to detect how much the actual filling temperature is. In this regard, since the cylindrical label 3 of the present embodiment is provided with the non-insulating region 10, a part of the handle overlaps the non-insulating region 10 when the body 22 is held from above the label 3. Through this part, you can know the approximate temperature of the filling. Therefore, the person who eats and drinks can eat and drink the filling material just in time for the good temperature. In addition, if the formation area of the non-insulating region 10 is too small, the handle may not overlap the non-insulating region 10. In consideration of this point, the non-insulating region 10 has a circumferential length L of the cylinder. It is preferable that it is 10% or more of the total perimeter of the label 3.
When touching the non-insulating region 10, the temperature of the filling material is transmitted to the hand as described above. For example, as the design printing layer 7 in the non-insulating region 10, for example, "Be careful because this part is a little hot. It is preferable to print a note-like display such as “Please”.

  Further, since the perforation 11 is formed in the non-insulated region 10, the non-woven fabric layer 8 does not exist in the perforation forming portion. Therefore, when the label is removed for recycling, the label 3 along the perforation 11 is removed. Can be easily divided. In particular, since the perforation 11 is formed in the vicinity of both sides so as to sandwich the center seal portion 4, if the upper end or lower end of the center seal portion 4 is grasped and pulled, the wall thickness is thicker than other portions. The label 3 can be more reliably and easily divided while using the center seal portion 4.

Next, a modification of this embodiment will be described.
As a means for providing the contact portion 9 on the container contact surface of the cylindrical label 3, a heat-sensitive adhesive is applied to the non-heat-insulating area 10. The adhesive portion 9 may be provided by applying a heat-sensitive adhesive on the inner surface of the layer 8. Further, as a means for providing the contact portion 9 on the container contact surface of the cylindrical label 3, the coating layer 9 ′ exemplified in the first embodiment may be laminated on the inner surface of the non-insulating region 10 and / or the nonwoven fabric layer 8. Good. Further, when a non-insulating region 10 is formed in a relatively large area and a film made of a relatively non-slip material such as a polyolefin film such as polyethylene or polypropylene is used as the film layer 6, FIG. As shown in FIG. 2, it is possible to configure the inner surface itself of the non-insulating region 10 as the close contact portion 9 without providing a heat sensitive adhesive or coating layer on the container contact surface of the cylindrical label 3.

Further, the non-insulating region 10 is not limited to the case where it is provided on both sides of the center seal portion 4. For example, as shown in FIG. As shown to 8 (a), the non-thermal insulation area | region 10 may be provided in the width direction middle part, and as shown to the same figure (b), the non-thermal insulation area | region 10 is provided in two or more places. Also good.
Further, as shown in FIG. 8, the close contact portion 9 is a belt-like shape made of a hot melt adhesive, a part coat type thermal adhesive, a delayed tack type thermal adhesive, or the like from the upper edge to the lower edge of the non-insulating region 10. A close contact portion 9 may be provided.

  Further, in the above description, the perforation 11 is formed in the non-insulated region 10 as the easy dividing means of the label 3, but the easy dividing means is not limited to the perforated 11, and for example, FIG. As shown in FIG. 3, the cut portion 14 may be formed at the upper edge or / and the lower edge of the non-insulated region 10 by cutting a part of the non-insulated region 10. Thus, by providing the notch part 14 in the non-adiabatic region 10, since this becomes a dividing starting point, the label 3 can be divided easily. In particular, as shown in the figure, it is preferable to form two cut portions 11 on the upper and lower edges with the center seal portion 4 interposed therebetween, because the label 3 can be reliably divided while using the thick center seal portion 4. . Further, as other easy dividing means, a tear tape 15 may be provided on the inner surface of the non-insulating region 10 as shown in FIG. The tear tape 15 is preferably provided in the vertical direction from the upper edge to the lower edge. Further, as shown in FIG. 9 (c), the perforation 11 is formed by sandwiching the tear tape 15, or as shown in FIG. 9 (d), the upper edge of the label 3 is sandwiched by the tear tape 15. Alternatively, the mode in which the cut portions 14 are formed in the lower edge is a more preferable mode because the label 3 can be more easily divided.

(Third embodiment)
The third embodiment relates to a heat-shrinkable cylindrical label using a non-slip nonwoven fabric. Hereinafter, parts different from those of the first embodiment will be mainly described, description of similar structures may be omitted, and terms and figure numbers may be used.
As shown in FIG. 10A, the container contact surface of the cylindrical label 3 of the present embodiment is configured by the inner surface of the nonwoven fabric layer 8. The inner surface of the nonwoven fabric layer 8 is against the polyethylene terephthalate film so that the rotational torque of the cylindrical label 3 with respect to the container body 22 is 1.96 N · m or more and is larger than the opening torque of the screw cap 25. The static friction coefficient is formed to be 0.6 or more.

However, the coefficient of static friction means that the nonwoven fabric layer 8 is cut into 80 mm × 100 mm (width × length), and a biaxially stretched polyethylene terephthalate film (manufactured by Toyobo Co., Ltd., untreated surface of A1101 # 100) is 100 mm × Cut to 300 mm (width x length), the inner surface of the nonwoven fabric layer 8 is overlapped on this film, and according to JIS K 7125, the tensile speed is 100 mm / min, the temperature is 23 ± 2 ° C., and the humidity is 50 ± 5%. This is the value measured for the static friction coefficient of the inner surface.
As described above, as a method for specifying the static friction coefficient of the inner surface of the nonwoven fabric layer 8, the polyethylene terephthalate film is used as a standard. However, while the measurement of the static friction coefficient of the nonwoven fabric layer 8 with respect to the cylindrical container is difficult, generally, the bottle-shaped This is because many metal cans have a polyethylene terephthalate film laminated on the surface, and as a substitute characteristic, it has been found that measurement of the coefficient of static friction with respect to the polyethylene terephthalate film is suitable. It should be noted that the heat-shrinkable cylindrical label of the present embodiment and the container to which the label is attached are not limited in meaning that “polyethylene terephthalate film” is included as an essential component.

As shown in FIGS. 10B and 11, the label base material 5 is provided with a design printing layer 7 on the inner surface of the heat-shrinkable film layer 6 except for the sticking portion 5 c, and the inner surface of the inner surface of the label base material 5 is substantially the same. The nonwoven fabric layer 8 is laminated | stacked through the adhesive bond layer. The inner surface of the nonwoven fabric layer 8 is embossed so that the top surface 12a of the convex portion 12 has a width of 70 to 90% per unit area. The planar shape of the emboss is not particularly limited, and the emboss can be formed in a regular lattice shape as illustrated, although not particularly illustrated, an oblique lattice shape, a triangular shape, a circular shape, an elliptical shape, or the like. The depth of the embossed recess 13 is not particularly limited, but if it is too shallow, the bottom surface 13a of the recess 13 comes into contact with the container body 22 when the shrink is mounted, and the area of the top surface 12a of the projecting portion 12 is formed in the specific range. Since the significance is lost, it is preferable to form it at a depth of 10 μm or more. Furthermore, the fiber which comprises a nonwoven fabric layer uses the 1 type, or 2 or more types of fiber chosen from polyethylene, a polypropylene, a polypropylene-type elastomer, and polyester. The basis weight of the nonwoven fabric is preferably about 10 to 50 g / m ² (preferably 15 to 30 g / m ² ) and about 100 to 210 μm in thickness.
The cylindrical label 3 is formed by laminating the surface of the nonwoven fabric layer 8 that has not been embossed on the inner surface of the design printing layer 7 by dry lamination or the like, and the embossed surface of the obtained label base material 5 is on the inside. A cylindrically labeled container 1 can be obtained by forming a cylindrical seal and center-sealing it, and by externally fitting it onto the cylindrical body 22 of the container 2 and shrink mounting.

The container 1 with the cylindrical label has a static friction coefficient of 0.6 or more with respect to the polyethylene terephthalate film on the inner surface of the nonwoven fabric layer 8, so that when the screw cap 25 is turned, the cylindrical label 3 is difficult to idle. Therefore, the screw cap 25 can be easily opened.
That is, the container 2 to which the cylindrical label 3 of the present invention is attached is a synthetic resin container such as a so-called PET bottle, a metal container, a glass container, and the like, and in particular, a polyethylene terephthalate film is laminated (resin-coated) on the surface. Aluminum and steel bottle cans.
In many cases, the slipperiness of the nonwoven fabric with respect to the outer surface of the body portion of these containers 2 is almost the same as or more than the slipperiness of the nonwoven fabric with respect to the bottle can laminated with the polyethylene terephthalate film. Therefore, the cylindrical label 3 of the present embodiment in which the static friction coefficient of the inner surface of the nonwoven fabric layer 8 is 0.6 or more with respect to the polyethylene terephthalate film is not slippery with the container body 22 after being mounted, and is idled. It can be prevented.

Furthermore, if the coefficient of static friction of the inner surface of the nonwoven fabric layer 8 is 1.0 or less with respect to the polyethylene terephthalate film, the inner surface of the cylindrical label 3 is the container when the cylindrical label 3 is externally fitted to the container body 22. This is a more preferable aspect because the slipperiness is not deteriorated so as to interfere with the outer surface of the body part 22 and the cylindrical label 3 can be smoothly and externally inserted into the body part 22.
A specific example in which the coefficient of static friction of the nonwoven fabric layer 8 can be 0.6 to 1.0 as described above is a polyester fiber nonwoven fabric embossed so that an area of 80 to 90% per unit area is in contact with the container. Specific examples include a nonwoven fabric made of polypropylene fiber embossed so that an area of 80 to 90% per unit area is in contact with the container, and a nonwoven fabric made of a mixed fiber or a composite fiber of polyolefin fiber and polyester fiber.
In addition, the static friction coefficient can be adjusted in the range of 0.6 to 1.0 by appropriately designing the inner surface of the nonwoven fabric layer 8 such as the contact area with the container, the material of the nonwoven fabric, and the convex shape of the emboss.

(Other embodiments)
Although various specific examples have been described in the first to third embodiments, the present invention is not limited to these, and for example, the embodiments can be appropriately combined. For example, the nonwoven fabric layer 8 shown in the third embodiment may be applied to the cylindrical label 3 of the first or second embodiment, and for example, the heat-sensitive adhesive shown in the first embodiment is applied. The configuration can be appropriately combined, for example, applied to the cylindrical label 3 of the third embodiment.

Moreover, in the said 1st-3rd embodiment, although the design printing layer 7 is provided in the inner surface of the film layer 6, it is also possible to provide in the outer surface of the film layer 6. FIG. Moreover, in 1st-3rd embodiment, since the sticking part 5c which the film layer 6 exposed is provided in the one side edge part 5a of the label base material 5, the other side edge part 5b of the label base material 5 is provided. When the center seal is overlapped on the outer surface, it is preferable because both surfaces can be solvent-bonded. However, the film layer 6 does not necessarily have to be exposed at the one end portion 5a.
In addition, the container 1 with a cylindrical label is not restricted to the use used by heating, It can also be used at cold temperature or normal temperature, and a filling is not restricted to a drink.

Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples. However, the present invention is not limited to the following examples.
(Test container A) An aluminum bottle can having a shape as shown in FIG. Aluminum screw cap diameter 38mm, barrel diameter 66mm, barrel length 86mm, capacity 290ml. Made by Mitsubishi Materials Corporation.
(Test container B) A steel bottle can with a polyethylene terephthalate film laminated on the outer surface in the shape shown in FIG. Steel screw cap diameter 38mm, body diameter 52mm, body length 80mm, capacity 190ml. Made by Toyo Seikan Co., Ltd.
(Test heat-shrinkable film C) A heat-shrinkable film made of polyethylene terephthalate having a thickness of 30 μm. 65% heat shrinkage in the circumferential direction at 85 ° C. Shrinkage stress 6 MPa. (All measurement methods are as above)
(Measurement of Opening Torque of Screw Cap) As shown in FIG. 13A, the screw cap 25 is connected to the torque tester 100 (2 TME450CN (maximum 4.. To 5 N · cm), manufactured by Tohnichi Seisakusho Co., Ltd.), hold the barrel 22 with one hand, rotate it around the central axis O, and increase the maximum torque when the container starts to move. It was measured. About each container, when 5 samples of the same test were done and the average value was calculated | required, the container A was 1.7 N * m and the container B was 2.0 N * m.

Example 1
Non-woven fabric (polyethylene terephthalate fiber, weight per unit area 20 g / m ² , trade name Marix, manufactured by Unitika Ltd.), lattice where the total area of the top surface of the convex portion is 75% of the total area. A hot-melt adhesive having a width of 10 mm and a dry thickness of 10 μm and containing ethylene-vinyl acetate copolymer as the main component on the inner surface of the nonwoven fabric layer. From the bottom to the bottom edge, it was coated in a band shape, and this was formed into a cylindrical shape to produce a cylindrical label. The label was heated and shrink mounted at 100 ° C. for 5 seconds on the body of the test container A from which the screw cap had been removed, to obtain a cylindrically labeled container according to Example 1. In order to measure the rotational torque of the cylindrical label, as shown in FIG. 13B, the container spout 24 is fixed to the chuck 101 of the torque tester 100, and the barrel portion 22 is attached to the cylindrical label 3 from above. The hand was gripped with one hand with a force that did not slip from the label and turned around the central axis O, and the maximum torque when the cylindrical label started to move was measured. When five samples of the same test were conducted and the average value was obtained, the rotational torque of the cylindrical label was 4.5 N · m or more. Furthermore, after attaching a screw cap to the spout of the container with a cylindrical label (after resealing), holding the barrel with one hand and turning the screw cap with the other hand, the cylindrical label opens without spinning. I was able to plug it.
Example 2
When the test was performed in the same manner as in Example 1 except that the cylindrical label of Example 1 was mounted on the test container B, the rotational torque was 4.5 N · m or more. Moreover, the screw cap could be easily opened after resealing.

Example 3
Using the same non-woven fabric as in Example 1, the non-woven fabric was not laminated by a length of 10% with respect to the total width of the test heat-shrinkable film C, and an ethylene-vinyl acetate copolymer was applied to the portion having no non-woven fabric. A part coat type thermosensitive adhesive as a main component was applied by gravure printing in the vertical direction with a width of 10 mm and a dry thickness of 10 μm, and this was formed into a cylinder to produce a cylindrical label according to Example 3. When this was tested in exactly the same manner as in Example 1, the rotational torque was 4.5 N · m or more. Moreover, the screw cap could be easily opened after resealing.
Example 4
When the test was performed in the same manner except that the cylindrical label of Example 3 was attached to the test container B, the rotational torque was 4.5 N · m or more. Moreover, the screw cap could be easily opened after resealing.

Example 5
The same non-woven fabric as in Example 1 was used, and the non-woven fabric was not laminated by a length of 10% with respect to the total width of the test heat-shrinkable film C, and the portion having no non-woven fabric had a width of 10 mm and a dry thickness of 10 μm. -A hot-melt adhesive mainly composed of a vinyl acetate copolymer was applied in a strip shape from the upper edge to the lower edge of the label, and this was formed into a cylindrical shape to produce a cylindrical label according to Example 5. When this was tested in exactly the same manner as in Example 1, the rotational torque was 4.5 N · m or more. Moreover, the screw cap could be easily opened after resealing.
Example 6
When the test was performed in the same manner except that the cylindrical label of Example 5 was attached to the test container B, the rotational torque was 4.5 N · m or more. Moreover, the screw cap could be easily opened after resealing.

Example 7
Nonwoven fabric with a thickness of 150 μm (polyethylene terephthalate fiber, basis weight 20 g / m ² , product name Marix, manufactured by Unitika Ltd., with a grid-like embossment with the total area of the top surface of the convex part being 85% of the total area The non-embossed surface of) was dry-laminated and laminated on the heat-shrinkable film C for test, and this was formed into a cylinder to produce a cylindrical label according to Example 7.
In addition, it was 0.73 when the static friction coefficient was measured about the embossing formation surface of this nonwoven fabric. The static friction coefficient was measured in accordance with JIS K 7125. The test piece (nonwoven fabric) had a width x length of 80 x 100 mm and a mating material (biaxially stretched polyethylene terephthalate film (manufactured by Toyobo Co., Ltd., A1101 # 100) The treated surface) was used at a width x length of 100 x 300 mm, a pulling speed of 100 mm / min, a temperature of 23 ± 2 ° C., and a humidity of 50 ± 5%.
It was.
When the cylindrical label was mounted on the test container A and tested in the same manner as in Example 1, the rotational torque was 2.0 N · m. Moreover, the screw cap could be easily opened after resealing.

Example 8
The static friction coefficient of the embossed surface of the nonwoven fabric was measured in exactly the same manner as in Example 7, except that a grid-like embossing was performed so that the total area of the top surface of the convex portion was 90% of the total area. 0.85. Furthermore, when this was formed in the cylindrical label, and it mounted | worn with the container A for a test and tested similarly, rotational torque was 2.2 N * m. Moreover, the screw cap could be easily opened after resealing.

Example 9
Non-woven fabric with a thickness of 170 μm (composite fiber in which polyethylene is coated around a polyester core, basis weight 20 g / m ² , trade name Elves, manufactured by Unitika Ltd., total area of the top surface of the convex part is 90% %) And the coefficient of static friction of the embossed surface of the nonwoven fabric was measured and found to be 0.90. Furthermore, when this was formed into a cylindrical label and mounted in the test container A and tested in the same manner, the rotational torque was 2.4 N · m. Moreover, the screw cap could be easily opened after resealing.

Comparative Example Using the same nonwoven fabric as in Example 1, the coefficient of static friction was measured in the same manner as in Example 7. As a result, it was 0.52. Next, this non-woven fabric was dry laminated on the test heat-shrinkable film C and laminated to produce a cylindrical label according to a comparative example. Was 1.3 N · m. Further, after resealing, when trying to open the screw cap, the label sometimes slipped.

  In addition, when the unopened container with the screw cap filled therein is heated, the container expands, so that the inner surface of the cylindrical label strongly adheres to the container body, and the cylindrical label tends not to idle. However, each of the above examples was tested at room temperature and with the screw cap resealed, but the cylindrical label did not idle.

The front view which shows the container with a cylindrical label of 1st Embodiment. The exploded perspective view. (A) is the sectional view on the AA line of FIG. 2, (b) is a front view which shows the label base material of 1st Embodiment. The front view which shows the modification of the label base material of 1st Embodiment. The disassembled perspective view which shows the container with a cylindrical label of 2nd Embodiment. (A) is width direction sectional drawing of the cylindrical label which concerns on the modification of 2nd Embodiment, (b) is a front view of the label base material. (A), (b) is width direction sectional drawing of the cylindrical label which concerns on the modification of 2nd Embodiment. (A), (b) is a perspective view of the cylindrical label which concerns on the modification of 2nd Embodiment. (A)-(d) is a perspective view of the cylindrical label which concerns on the modification of 2nd Embodiment. (A) is width direction sectional drawing which shows the cylindrical label of 3rd Embodiment, (b) is a front view which shows the label base material. 9A is an enlarged reference view of a portion C in FIG. 9, and FIG. The schematic front view which shows the shape of the container for a test used in the Example. (A), (b) is a reference front view which shows the test method of torque measurement.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Container with a cylindrical label, 2 ... Container, 21 ... Bottom part, 22 ... Body part, 23 ... Shoulder part, 24 ... Outlet, 241 ... Peripheral wall part, 242 ... Opening part, 25 ... Screw cap, 251 ... Sealing Part, 252 ... peripheral wall part, 3 ... cylindrical label, 4 ... center seal part, 5 ... label base material, 5a ... one side end part, 5b ... other side end part, 5c ... sticking part, 5d ... upper edge, 5e ... lower edge, 6 ... film layer, 7 ... design printing layer, 8 ... non-woven fabric layer, 9 ... adhesive part, 10 ... non-insulating region, 11 ... perforation, 12 ... embossed convex part, 13 ... embossed concave part, 14 ... notch, 15 ... tear tape

Claims (3)

With a cylindrical label in which a cylindrical label laminated with a non-woven fabric layer is mounted on the barrel of a container having a cylindrical barrel and a spout and attached with a screw cap capable of opening and closing the spout In the container,
A container with a cylindrical label, characterized in that the rotational torque of the cylindrical label with respect to the cylindrical body is larger than the opening torque of the screw cap. A heat-shrinkable heat-shrinkable film that has a non-woven fabric layer laminated on the inner surface of the label base material and is formed into a cylindrical shape with the non-woven fabric layer inside. In the cylindrical label,
A heat-shrinkable cylindrical label characterized in that at least a part of the container contact surface of the cylindrical label is provided with a close contact portion having higher contact with the container body than the surface of the nonwoven fabric layer. A heat-shrinkable heat-shrinkable film that has a non-woven fabric layer laminated on the inner surface of the label base material and is formed into a cylindrical shape with the non-woven fabric layer inside. In the cylindrical label,
A region having no nonwoven fabric layer is provided in a part of the container contact surface of the cylindrical label, and a heat-sensitive adhesive is applied to at least a part of the region not having the nonwoven fabric layer. A heat-shrinkable cylindrical label.

Images