JP2009096480A - Container with cylindrical label - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a container with a cylindrical label capable of easily removing the cylindrical label from the container. <P>SOLUTION: The container 1 with the cylindrical label includes a container 2 having a shoulder part 22 which is gradually contracted above a barrel part 21, and a heat shrinkable cylindrical label 3 having a center seal part 4 which is formed by overlapping both ends of the heat shrinkable film and sticking them to each other. The cylindrical label 3 is heat-shrinkably attached to the barrel part 21 and the shoulder part 22 of the container 2. A division part 5 for vertically dividing the center seal part 4 of the cylindrical label 3 is formed in an area of the cylindrical label 3 attached to the shoulder part 22. A sheet piece 7 for covering at least a part of the division part 5 is affixed to an outer surface of the cylindrical label 3. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a container with a cylindrical label to which a heat-shrinkable cylindrical label is attached.

Conventionally, containers in which beverages and the like are placed in polyethylene terephthalate molded containers (so-called PET bottles) are in circulation. In general, a cylindrical label (also referred to as a cylindrical shrink, a shrink label, or the like) that can be thermally contracted in the circumferential direction is thermally contracted on the container.
The cylindrical label is a cylindrical body in which a center seal portion is formed by forming a heat-shrinkable film into a cylindrical shape, overlapping both end portions thereof, and bonding the overlapping surfaces.

The cylindrical label is removed from the container for recycling when discarded.
In order to easily remove the cylindrical label from the container, conventionally, the cylindrical label has perforations formed on both sides of the center seal portion (Patent Document 1).
Such a cylindrical label can be removed from the container by cutting a strip-shaped center seal portion by putting a nail between two perforations on the upper edge of the cylindrical label, picking this portion and pulling it downward. .
JP 2002-179029 A

When the conventional cylindrical label is removed from the container, a nail is put on the upper edge of the cylindrical label and the upper edge is picked, but the upper edge of the cylindrical label and the container are in close contact with each other, There is a problem that it is difficult to put a nail and it is difficult to pick the upper edge.
In addition, the cylindrical label on which the perforation is formed may cause a crack from the perforation due to dropping or contact with a foreign object during the distribution process.

  The objective of this invention is providing the container with a cylindrical label which can remove a cylindrical label from a container easily.

  In the container with a cylindrical label of the present invention, a center seal portion is formed by laminating and adhering both the end portions of the heat-shrinkable film and a container in which a shoulder portion gradually reducing in diameter is formed above the body portion. A heat-shrinkable tubular label, wherein the tubular label is heat-shrinkably mounted on the body and shoulder of the container, and the shoulder of the tubular label In the region attached to the part, a dividing part that divides the center seal part of the cylindrical label up and down is formed, and on the outer surface of the cylindrical label, a sheet piece that covers at least a part of the dividing part Is affixed.

The container with a cylindrical label can be easily removed from the cylindrical label at the center seal portion below the dividing portion of the center seal portion by picking the end of the sheet piece and pulling it out downward and downward when opening the container. Can be cut out.
The cylindrical label from which the center seal portion has been cut out extends left and right on the lower side of the dividing portion and is separated from the container, and remains on the shoulder portion of the container in a cylindrical shape on the upper side of the dividing portion. is doing. Since this remaining portion is a cylindrical shape that is gradually reduced in diameter upward according to the outer shape of the shoulder portion of the container, the cylindrical label can be removed from the container very easily by holding the cylindrical portion and pulling it upward. Can do.

Preferably, the upper region of the sheet piece is not attached to the outer surface of the cylindrical label.
Thus, the upper area | region of a sheet piece can be easily picked by the upper area | region of a sheet piece being non-sticking. By picking up the upper area of the sheet piece and pulling the sheet piece outward and downward, the cylindrical label can be removed from the container very easily as described above.

In the container with a cylindrical label of the present invention, the cylindrical label can be easily removed from the container by pulling the cylindrical label upward after cutting out the center seal part on the lower side of the dividing part.
Moreover, the container with a cylindrical label of the present invention can be easily removed by opening the cylindrical label even if the perforated line is not formed on the cylindrical label. A container with a cylindrical label on which a cylindrical label that is not perforated is mounted is preferred because there is no risk of cracking or the like on the mounted cylindrical label during a distribution process or the like.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 3, reference numeral 1 is a center by overlapping and adhering both ends of the heat-shrinkable film to the container 2 in which a shoulder portion 22 having a diameter gradually decreasing is formed above the body portion 21. The container with a cylindrical label provided with the heat-shrinkable cylindrical label 3 in which the seal | sticker part 4 is formed is shown.
The cylindrical label 3 is heat-shrinkably attached to the body portion 21 and the shoulder portion 22 of the container 2.
Note that the cylindrical label 3 is heat-shrinkably attached to the body portion 21 and the shoulder portion 22 of the container 2. The cylindrical label 3 is attached to the entire body portion 21 and the entire shoulder portion 22 of the container 2. In addition to cases, the case where the cylindrical label 3 is attached to the whole or a part of the trunk portion 21 and the shoulder portion 22 of the container 2, or the cylindrical label 3 is attached to the trunk portion 21 of the container 2. It includes the case where it is attached to the whole and a part of the shoulder 22. In addition, the cylindrical label 3 may be heat-shrink mounted on the cap portion of the container 2 other than the body portion 21 and the shoulder portion 22 of the container 2.

Of the center seal portion 4 of the cylindrical label 3, the center seal portion 4 in the region attached to the shoulder portion 22 of the container 2 is formed with a dividing portion 5 that divides the center seal portion 4 vertically. A sheet piece 7 is attached to the outer surface of the cylindrical label 3 so as to cover at least a part of the dividing portion 5.
Hereinafter, a specific configuration of the container 1 with a cylindrical label of the present invention will be clarified while explaining each component.

  The container 2 is a self-supporting container that can be filled with contents such as beverages. The container includes a barrel portion 21 that is filled with contents, a shoulder portion 22 that is integrally formed above the barrel portion 21, a neck portion 23 that is integrally formed above the shoulder portion 22, and the neck portion. And a cap portion 24 that can be freely opened and closed at a spout opened at the upper end portion of the cap 23.

The outer shape of the body portion 21 is not particularly limited, and may be any shape such as a substantially rectangular column shape, a substantially hexagonal column shape, or a substantially elliptical column shape in addition to a substantially cylindrical shape as illustrated. In addition, although the concave part (or convex part) is often suitably formed in the trunk | drum 21 for reinforcement etc., it is not illustrated.
The outer shape of the shoulder portion 22 is formed in a shape that gradually decreases in diameter upward. The outer shape of the shoulder portion 22 is not limited to a shape that gradually decreases in diameter toward the upper side (a gentle curvilinear shape when viewed from the front), but a ring-shaped step portion having an equal upper and lower circumferential length in a part of the shoulder portion 22. You may have.
The material of the container 2 is not particularly limited, and examples thereof include a synthetic resin such as polyethylene terephthalate, a metal such as aluminum and steel (including an aluminum plate and a steel plate on which a synthetic resin film is laminated), and a glass. It is done.

The cylindrical label 3 is comprised from the cylindrical body which heat-shrinks greatly at least to the circumferential direction at predetermined temperature (for example, 80-100 degreeC).
The cylindrical label 3 is made of a heat-shrinkable film that is heat-shrinkable mainly in one direction, and is formed in a cylindrical shape so that the one direction is a circumferential direction. The center seal portion 4 is formed by adhering with a solvent or an adhesive.
The width of the center seal portion 4 (the length in the circumferential direction of the cylindrical label 3) is not particularly limited, but is usually about 2 to 10 mm, preferably about 3 to 7 mm.

  The material of the heat-shrinkable film constituting the cylindrical label 3 is not particularly limited as long as it has the property of being heat-shrinkable in at least one direction (circumferential direction when formed into a cylindrical shape, the same applies hereinafter), For example, one kind selected from polyester resins such as polyethylene terephthalate, olefin resins such as polypropylene, styrene resins such as polystyrene and styrene-butadiene copolymers, thermoplastic resins such as cyclic olefin resins and vinyl chloride resins. Or a synthetic resin film, a foamed resin sheet, etc. which consist of 2 or more types of mixtures etc. can be used. A laminated film in which two or more kinds of resins having heat shrinkability are laminated can also be used. Furthermore, a laminated film in which a heat insulating layer such as a foamed resin sheet and other functional layers are laminated on a synthetic resin film can also be used. Further, as the heat-shrinkable film, a light-shielding film, a gas barrier film, a laminated film of these, and the like can be used. By using a heat-shrinkable film having light shielding properties and / or gas barrier properties, the cylindrical label 3 having excellent light shielding properties and / or gas barrier properties can be configured.

  A heat-shrinkable film can be obtained by forming into a film by a well-known manufacturing method and extending | stretching. The stretching treatment is usually performed by main stretching at a temperature of about 70 to 110 ° C. in a direction of 2.0 to 8.0 times, preferably about 3.0 to 7.0 times. Furthermore, you may perform a extending | stretching process by the low magnification of 1.5 times or less, for example in the other direction (Up-down direction when it forms in a cylinder shape, and the same hereafter). The obtained film becomes a uniaxially stretched film or a biaxially stretched film slightly stretched in a direction orthogonal to the main stretch direction. Although the thickness of a heat-shrinkable film is not specifically limited, Usually, it is about 20-80 micrometers.

The heat shrink property of the heat-shrinkable film is not particularly limited as long as it is close to the container 2 by heat shrinkage, but usually has a heat shrinkage rate in one direction (immersed in 90 ° C. warm water for 10 seconds). About 40% or more, preferably about 50% or more. The heat-shrinkable film may be slightly heat-shrinked in the other direction, and the heat-shrinkage rate (immersion in 90 ° C. warm water for 10 seconds) in the other direction is about −3 to 10%.
However, thermal shrinkage rate (%) = [{(original length in one direction (or other direction)) − (length after immersion in one direction (or other direction))} / (one direction (or other direction) ) Original length)] × 100.

  In addition, although the well-known design prints, such as a brand name, a trademark, and a design design, are printed on the cylindrical label 3 by single color or multicolor printing by gravure printing etc., the design print is not shown in figure.

  The cylindrical label 3 is heat-shrinked by being heated to a predetermined temperature after being externally fitted to the entire body portion 21 and the shoulder portion 22 of the container 2 (except for the upper portion of the shoulder portion 22). 2 is in close contact with the body portion 21 and the shoulder portion 22.

The cylindrical label 3 is formed with a dividing portion 5 that divides the center seal portion 4 into two.
The dividing portion 5 is formed in a part of the center seal portion 4 in the region attached to the shoulder portion 22 of the container 2 in the center seal portion 4 extending in the vertical direction.
The dividing portion 5 is formed by a cut line penetrating from the outer surface to the inner surface of the cylindrical label 3, and the cut line crosses at least the center seal portion 4 (both side end portions 3a and 3b of the laminated and bonded film). is doing.
The dividing portion 5 made of the cut line extends linearly in the circumferential direction of the cylindrical label 3, and both end portions of the dividing portion 5 are slightly beyond the edge of the center seal portion 4.
In addition, the said parting part 5 may be comprised from one cutting line, and the some cutting line may be comprised by continuing intermittently.

In addition, the dividing part 5 is not restricted to the linear cut line extended in parallel with the circumferential direction of the cylindrical label 3, as mentioned above, It can change into various aspects.
For example, as shown in FIG. 4A, the dividing portion 5 is a cut line extending in an inclined manner in the circumferential direction of the cylindrical label 3, and an arc-shaped cut curved upward as shown in FIG. As shown in the figure (c), it may be a mountain-shaped cut line bent upward, or a punched hole as shown in the figure (d).
Moreover, the dividing part 5 may be formed in the vicinity of the upper edge of the cylindrical label 3 as shown in FIG. 4A, or the cylindrical label 3 as shown in FIG. You may form in the location corresponding to the downward vicinity of the shoulder part 22 of the container 2 (above the upper part of the trunk | drum 21).
Any of these dividing portions 5 cross at least the center seal portion 4, and the center seal portion 4 is divided into two in the vertical direction in a part of the center seal portion 4 corresponding to the shoulder portion 22 of the container 2.

A sheet piece 7 is affixed to the outer surface of the cylindrical label 3 so as to cover the dividing portion 5.
However, the upper region of the sheet piece 7 is a non-sticking portion 7 a that is not attached to the outer surface of the cylindrical label 3.
The sheet piece 7 is pasted so as to be peelable from the outer surface of the cylindrical label 3 by hand force.
As shown in FIG. 3, the layer configuration of the sheet piece 7 is a base material 71, an adhesive layer 72 laminated on the inner surface of the base material, and an upper surface of the base material 71 in the inner surface of the adhesive layer 72. And a masking layer 73. The sheet piece 7 is stuck so that the back surface of the adhesive layer 72 covers the dividing portion 5.

The base material 71 is not particularly limited, and paper, synthetic paper, a synthetic resin film, a laminate of these, and the like can be used. Moreover, the base material 71 can also use the film which has light-shielding property and / or gas barrier property.
When the cylindrical label 3 having a light shielding property and / or a gas barrier property is used as the cylindrical label 3, light and gas enter the dividing portion 5 by forming the dividing portion 5 in the cylindrical label 3. By doing so, the light shielding and the gas barrier are lowered. In this regard, by using a material having a light shielding property and / or a gas barrier property as the base material 71 of the sheet piece 7 covering the dividing portion 5, the container 1 with a cylindrical label having an excellent light shielding property and / or gas barrier property is provided. it can.
The adhesive layer 72 can be formed, for example, by applying a pressure sensitive adhesive to the base material 71. Note that the pressure-sensitive adhesive includes a material that adheres to the outer surface of the cylindrical label 3 with weak pressure and separates from the outer surface of the cylindrical label 3 when peeled off.
The masking layer 73 is formed to conceal the adhesive force of the adhesive layer 72. The area where the masking layer 73 is laminated does not adhere to the outer surface of the cylindrical label 3, and the area constitutes the non-sticking portion 7 a of the sheet piece 7.
As a material for forming the masking layer 73, for example, a solvent type or emulsion type resin solution containing a synthetic resin as a main component, an ionizing radiation curable resin solution, a printing ink such as an ultraviolet curable ink, or the like can be used. The masking layer 73 can be formed by applying the forming material to a predetermined region of the pressure-sensitive adhesive layer 72 using a letterpress printing plate or the like.

  In addition, the non-sticking part 7a can also be formed without laminating the adhesive layer 72 on the upper region of the base material 71 (that is, the upper region of the back surface of the base material 71 is coated with an adhesive). In this case, the masking layer 73 is omitted. However, the method of laminating the adhesive layer 72 in a solid form on the substrate 71 and forming the masking layer 73 in the region where the adhesive is desired to be concealed is preferable because it can be easily manufactured.

  The planar view shape of the sheet piece 7 is formed in a substantially square shape as shown in FIG. In addition, the sheet piece 7 is attached so as to cover the entire divided portion 5 via the adhesive layer 72. Thus, it is preferable that the sheet piece 7 is attached so as to cover the whole of the dividing part 5, so that when the cylindrical label 3 is thermally contracted, the dividing part 5 can be prevented from expanding in the circumferential direction.

In addition, the planar view shape of the sheet piece 7 is not limited to a substantially square shape, and for example, as illustrated in FIG. 5A, the sheet piece 7 may be formed in a substantially circular shape. A substantially elliptical shape may be used.
In addition, the sheet piece 7 is not limited to the case where the sheet part 7 is applied to cover the entire divided part 5. For example, as illustrated in FIG. It may be affixed to cover only the central part of the dividing part 5.
Furthermore, as shown in FIG. 7C, even if the upper region (non-sticking portion 7a) of the sheet piece 7 protrudes from the upper edge of the cylindrical label 3, the sheet piece 7 is stuck to the cylindrical label 3. Good. However, as will be described later, when the pre-label method is adopted at the time of manufacturing the container 1 with the cylindrical label, the sheet piece 7 is formed so that the upper region of the sheet piece 7 does not protrude from the upper edge of the cylindrical label 3. It is preferable that the entirety is within the plane of the cylindrical label 3 and is stuck.

The said container 1 with a cylindrical label can be obtained with the following manufacturing method, for example.
A continuous cylindrical label continuous body in which the cylindrical labels 3 are continuously connected is pulled out, and a predetermined interval (vertical length of the cylindrical label 3) is opened in the center seal portion 4 to form a dividing portion 5. To go. Examples of the method for forming the cut portion 5 include a method of cutting with a blade such as a Thomson blade or a rotary blade, and a method of fusing with a laser beam or the like.

Next, the sheet pieces 7 are pasted so as to cover the dividing part 5. The cylindrical label continuous body to which the sheet piece 7 is affixed is cut into a predetermined length to obtain one cylindrical label 3. By aligning the affixed sheet piece 7 to the shoulder 22 of the container 2, the tubular label 3 is externally fitted to the container 2, and heated to a predetermined temperature (for example, about 80 to 100 ° C.). A cylindrically labeled container 1 in which the shape label 3 is heat-shrink mounted on the container 2 can be obtained.
In the obtained container 1 with a cylindrical label, the cylindrical label 3 is thermally contracted in the circumferential direction along the outer shape of the container 2, and the upper end edge of the cylindrical label 3 is on the shoulder 22 (or the neck) of the container 2. In close contact. The upper end opening of the cylindrical label 3 is reduced in diameter by heat shrinkage, but the peripheral length of the upper end opening is the circumference of the container portion (the neck portion and the cap portion of the container) located above the upper end edge of the cylindrical label 3. It is preferable that the length is equal to or longer than the length. This is because, as will be described later, the cylindrical label 3 can be removed from the container 2 very easily by pulling the cylindrical portion 31 upward after cutting the center seal portion 4.
In addition, the cylindrical label 3 is more thermally contracted at the shoulder 22 with a reduced diameter of the container 2. For this reason, as shown in FIG. 2, the non-sticking part 7a of the sheet piece 7 floats up from the cylindrical label 3, and this non-sticking part 7a becomes easy to pick.

  Since the above manufacturing method is a method (pre-label method) in which the sheet piece 7 is attached before the cylindrical label 3 is attached to the container 2, the position adjustment can be easily performed when the sheet piece 7 is attached. In the case of the pre-label method, as shown in FIG. 5C, in order to produce the cylindrical label 3 in which the upper area of the sheet piece 7 protrudes, the upper area of the previously attached sheet piece While rolling, the cylindrical label continuum must be cut. For this reason, when the pre-label method is adopted, a form in which the sheet piece 7 is stuck in the plane of the cylindrical label 3 is preferable.

  Instead of the pre-label method, a method of attaching the sheet piece 7 after the cylindrical label 3 formed with the dividing portion 5 is heat-shrink mounted on the container 2 may be used.

  The said container 1 with a cylindrical label picks up the non-pasting part 7a of the sheet piece 7, and begins to tear from the both ends of the parting part 5 by pulling this outside downward, The center seal part 4 is removed from the cylindrical label 3. It can be cut out (see FIG. 6). Since the center seal portion 4 is a portion where the two overlapped films are bonded, the center seal portion 4 is not torn in the middle of cutting, and the center seal portion 4 in the range from the dividing portion 5 to the lower edge of the cylindrical label 3 is cut off. Can do.

As shown in FIG. 7, the cylindrical label 3 from which the center seal portion 4 has been cut is a cylindrical portion whose diameter is gradually reduced upward in accordance with the outer shape of the shoulder portion 22 of the container 2 on the upper side of the dividing portion 5. 31, and expands to the left and right on the lower side of the dividing portion 5, away from the lower portion of the shoulder portion 22 of the container 2 and the trunk portion 21.
By holding the cylindrical portion 31 (indicated by a thick arrow in FIG. 7) and pulling it upward, the cylindrical label 3 can be removed from the container 2 very easily.
Furthermore, since the said cylindrical label 3 has the sheet piece 7 affixed, there also exists an effect that it is easy to make a user recognize that this sheet piece 7 is an opening start point.
Moreover, since the said cylindrical label-equipped container 1 is not formed with the perforation in the cylindrical label 3, it is excellent in intensity | strength and is preferable also on an external appearance. However, the container 1 with a cylindrical label of the present invention does not exclude the formation of a perforation in the cylindrical label 3, and the container 1 with a cylindrical label of the present invention can have a cylindrical label as necessary. Alternatively, the perforation may be formed in the vertical direction on the side of the center seal portion 4.

For example, as shown in FIG. 8, perforations 9 may be formed on both sides (or one side) of the center seal portion 4 of the cylindrical label 3 downward from both end portions of the dividing portion 5. Also in this case, the sheet piece 7 is stuck so as to cover the dividing portion 5 as in the above embodiment. Preferably, as shown in FIG. 8, the sheet piece 7 is formed in a long strip shape, and the strip-shaped sheet piece 7 covers the perforations 9 formed on both sides (or one side) of the center seal portion 4. To the bottom end of the cylindrical label 3.
Thus, by sticking the sheet piece 7 on the region where the perforation 9 is formed, it is possible to prevent the perforation 9 from being cracked.
Moreover, when the cylindrical label 3 and the sheet piece 7 have a light shielding property and / or a gas barrier property, it is possible to prevent light and gas from entering from the perforation 9.

The front view which shows one Embodiment of the container with a cylindrical label of this invention. The left side view. (A) is the II sectional view taken on the line of FIG. 1, (b) is the II-II sectional view taken on the line of FIG. However, the container is not shown. (A)-(d) is a partially-omission front view which shows other embodiment of a parting part. However, the sheet piece is shown in a state where it is not attached. (A)-(c) is a partially-omission front view which shows other embodiment of a sheet piece. The left view which shows the opening process of the container with a cylindrical label. The front view which shows the state after opening of a container with a cylindrical label. The front view which shows other embodiment of the container with a cylindrical label of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Container with a cylindrical label, 2 ... Container, 21 ... Body trunk part, 22 ... Container shoulder part, 3 ... Cylindrical label, 4 ... Center seal part, 5 ... Dividing part, 7 ... Sheet piece, 7a ... Upper region (non-sticking part) of sheet piece, 71 ... base material of sheet piece, 72 ... adhesive layer of sheet piece, 73 ... masking layer of sheet piece

Claims (2)

A container having a shoulder that gradually decreases in diameter above the trunk;
A heat-shrinkable cylindrical label in which a center seal portion is formed by overlapping and adhering both side ends of the heat-shrinkable film, and
In the container with a cylindrical label in which the cylindrical label is heat-shrink mounted on the body and shoulder of the container,
In the region attached to the shoulder portion of the cylindrical label, a dividing portion that divides the center seal portion of the cylindrical label up and down is formed,
A cylindrical label-attached container, wherein a sheet piece covering at least a part of the dividing portion is attached to an outer surface of the cylindrical label.   The container with a cylindrical label according to claim 1, wherein an upper region of the sheet piece is not attached to an outer surface of the cylindrical label.

Images