JP6093973B2 - Manufacturing method of container with cylindrical label, and container with cylindrical label - Google Patents

Description

  The present invention relates to a method for manufacturing a container with a cylindrical label in which a cylindrical label is attached to the container, and the cylindrical label.

Conventionally, various labels are attached to various containers (for example, containers filled with beverages) in order to display a desired display. The material of the container is roughly divided into metal, resin, glass and earthenware.
In addition to a desired design such as a pattern or a trademark, a specific information display such as a product name, a manufacturer name, a manufacturing date, a manufacturing number, a lot number, and an expiration date is usually printed on the label.

  Moreover, for example, as in Patent Document 1, a container with a cylindrical label in which a heat-shrinkable cylindrical label is mounted on substantially the entire container (a body portion and a cap portion of the container) is known. In such a container with a cylindrical label, since the surface area of the container and the heat-shrinkable cylindrical label are substantially the same, a desired display can be expressed on the entire container via the heat-shrinkable cylindrical label. At the time of use, the upper region of the heat-shrinkable cylindrical label is broken and removed along the horizontal perforation line so that the cap portion is exposed and opened, and the lower region of the cylindrical label is formed on the body portion of the container. Can leave.

By the way, a glass or ceramic container is cracked or easily broken by an impact (hereinafter, the term “cracked and broken” is collectively referred to as a broken bottle). If the packaging form of the above-mentioned patent document 1 which can leave the lower region of a cylindrical label (a part of a cylindrical label) in a container at the time of use to a container with the possibility of such a broken bottle is applied, You may not notice a broken bottle.
Therefore, it is conceivable to attach a cylindrical label configured so that the entire container can be removed from the container that may be broken.

  However, after the entire cylindrical label is removed and discarded, it becomes necessary to check the traceability of the container (or the contents stored in the container) and confirm the specific information of the contents. Unable to confirm the unique information printed on the label.

In this regard, there is also a beverage container in which a unique information display is printed on the tampering of the cap part so that the user can know the unique information of the container such as the expiration date even after the label or cap is removed. Are known.
However, such a beverage container requires a printing process on the tamper ring of the cap part separately from the printing process of the cylindrical label.

WO99 / 52788

  The objective of this invention is providing the manufacturing method of the container with a cylindrical label and container with a cylindrical label which can confirm the specific information of a container even after removing a cylindrical label.

The method of manufacturing a container with a cylindrical label according to the present invention includes a step of mounting a cylindrical label including at least the body portion of a container having a cap portion and a body portion, and laser light from the outer surface of the mounted cylindrical label. by irradiation, at the same time as printing specific information displayed on the tubular label, the step of printing the same unique information display and the display on the outer surface of the vessel, have a, wherein an inner surface of the tubular label the laser beam Irradiation corresponding to the place where the outer surface of the container is in contact damages the outer surface of the container and attaches a part of the constituent material of the cylindrical label onto the scratch, thereby displaying the unique information Is printed .

A preferable manufacturing method of the present invention corresponds to a location where the cylindrical label is provided with at least one of a design printing layer and a coloring layer, and at least one of the design printing layer and the coloring layer is provided. Irradiate with laser light .

According to another aspect of the present invention, a container with a cylindrical label is provided.
The container with a cylindrical label of the present invention includes a container having a cap part and a body part, and a cylindrical label mounted on the outer surface of the container including at least the body part. The unique information display is represented, and the same unique information display as the display is represented on the outer surface of the container, and the unique information display represented on the outer surface of the container is attached to the outer surface of the container. A part of the constituent material of the cylindrical label is attached to the scratch .

According to the manufacturing method of the present invention, since the unique information display can be simultaneously and easily printed on the cylindrical label and the container, it is possible to easily manufacture the container with the cylindrical label in which the same unique information display is represented on the cylindrical label and the container. it can.
In the container with a cylindrical label of the present invention, the same unique information display is displayed on the cylindrical label and the container. Therefore, even after the cylindrical label is removed and discarded, the container is displayed from the unique information displayed on the container. Can be tracked.

The top view of the label base material which concerns on 1st Embodiment which comprises the cylindrical label of this invention. Sectional drawing cut | disconnected by the II-II line | wire of FIG. The top view of the label base material which concerns on 2nd Embodiment which comprises the cylindrical label of this invention. Sectional drawing cut | disconnected by the IV-IV line of FIG. The perspective view of a heat-shrinkable cylindrical label or a self-expandable cylindrical label. The front view of a winding cylindrical label. The front view which shows the formation process of a winding cylindrical label. The front view of a container. The front view of the container with a cylindrical label before printing a specific information display. The top view of the container with the said cylindrical label. The rear view of the container with a cylindrical label after printing specific information display.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In this specification, the “front surface” of the label base material refers to the outer surface of the cylindrical body when it is formed into a cylindrical shape (that is, when the cylindrical label is formed). , Refers to the inner surface of the cylinder. In addition, terms such as “first” and “second” may be added in front of a term. The first, etc. is added to distinguish terms and has a special meaning such as superiority or inferiority or order. Absent. Furthermore, the description “PPP to QQQ” means “PPP or more and QQQ or less”.
In each figure, it should be noted that the thickness and dimensions are different from the actual ones.

[Label substrate]
FIG. 1 shows a label substrate 1 according to the first embodiment, which is a basic member constituting the cylindrical label of the present invention. Hereinafter, the label substrate 1 according to the first embodiment is referred to as a first label substrate 1A. 1 A of 1st label base materials are normally formed in planar view substantially rectangular shape or substantially square shape.
As shown in FIG. 2, the layer structure of the first label substrate 1 </ b> A includes a film layer 2 and a design print layer 3. In the first label substrate 1 </ b> A, the design print layer 3 is provided on the back surface of the film layer 2.
The design print layer 3 may be provided on the entire film layer 2 or may be provided on a part of the film layer 2. As will be described later, a cylindrical label is formed by superimposing the surface of the first side end portion of the label base material and the back surface of the second side end portion and bonding the overlapped surfaces. If the design print layer 3 is interposed on the polymerization surface, there is a risk of causing poor adhesion. Therefore, the design print layer 3 is preferably provided except for the back surface of the second side end portion. It is more preferable that it is provided on the entire film layer 2 except for the back surface of the two side end portions.

FIG. 3 shows a label substrate 1 according to the second embodiment. Hereinafter, the label substrate 1 according to the second embodiment is referred to as a second label substrate 1B. The second label substrate 1B is also usually formed in a substantially rectangular shape or a substantially square shape in plan view.
As shown in FIG. 4, the layer structure of the second label base material 1 </ b> B includes a film layer 2, a coloring layer 4, and a design printing layer 3. In the second label substrate 1B, at least one of the color developing layer 4 and the design printing layer 3 is provided on the back surface of the film layer 2, and preferably, the color developing layer is provided on the back surface of the film layer 2 as illustrated. 4 is provided, and the design printing layer 3 is provided on the back surface thereof.

The coloring layer 4 and the design printing layer 3 may be provided on the entire film layer 2 or may be provided on a part of the film layer 2. When the coloring layer 4 and the design printing layer 3 are provided on the back surface of the film layer 2, from the viewpoint of preventing poor adhesion of the polymerization surface as described above, the coloring layer 4 and the design printing layer 3 are formed on the second side end portion. It is preferable to be provided except for the back surface. Moreover, about the design printing layer 3, it is more preferable to be provided in the whole film layer 2 except the back surface of a 2nd side edge part.
In the illustrated example, the coloring layer 4 is provided on a part of the back surface of the film layer 2 except the back surface of the second side end portion, and the design printing layer 3 is colored except for the back surface of the second side end portion. It is provided on the entire back surface of the film layer 2 including the back surface of the layer 4.

The first and second label base materials 1A and 1B may be further provided with another design printing layer on the surface of the film layer 2 as necessary, or the coloring layer 4 described above. And functional layers other than the design printing layer 3 may be provided (not shown).
Hereinafter, when simply described as “label base material 1”, it refers to the first label base material 1A or the second label base material 1B.

(Film layer)
As the film layer 2, a film having at least one of heat shrinkability and self-stretchability, or a film having neither heat shrinkability nor self-stretchability is used.
The heat shrinkability refers to a property of shrinking when heated to a required temperature (for example, 70 ° C. to 100 ° C.). Self-stretching refers to the property of stretching by applying a pulling force and then restoring the original state by releasing the pulling force.
Examples of heat-shrinkable films include heat of polyester resins such as polyethylene terephthalate, olefin resins such as polypropylene, styrene resins such as styrene-butadiene copolymers, cyclic olefin resins, and vinyl chloride resins. Examples thereof include a stretched film containing a plastic resin. Moreover, as a film which has a self-stretch property, the film etc. which contain thermoplastic resins, such as olefin resin, such as polyethylene, ethylene vinyl acetate copolymer, etc. are mentioned, for example. The film having self-stretchability may have heat shrinkability in addition to self-stretchability.
Examples of the film having neither heat shrinkability nor self-stretchability include a biaxially stretched polyester film, a biaxially stretched styrene film, and a biaxially stretched olefin film.

The film having heat shrinkability is thermally shrunk in at least one direction (one direction becomes the circumferential direction when formed in a cylindrical shape). The heat-shrinkable film may be one that slightly shrinks or stretches in the other direction (the other direction is a direction perpendicular to the one direction in the film plane).
The heat shrinkage rate of the film having heat shrinkability is not particularly limited, but the heat shrinkage rate in one direction when heated to 80 ° C. is, for example, 30% or more, preferably 40% or more, more preferably 50% or more.
In addition, when the film which has heat-shrinkability heat shrinks or heat-extends a little in the other direction, the heat shrink rate in the other direction when it heats to 80 degreeC is -3%-15%, for example. The minus of the heat shrinkage rate in the other direction means thermal expansion.
The heat shrinkage rate when heated to 80 ° C. is the length of the film before heating (original length) and the length of the film after being immersed in warm water of 80 ° C. for 10 seconds (after immersion). Length) and is obtained by substituting into the following equation.
Formula: heat 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.

A film having self-stretchability can be stretched in one direction (one direction becomes the circumferential direction when formed into a cylindrical shape) to a stretch ratio of 1.25 times or more and less than 1.60 times, and is substantially after release of stretching. What returns to the original shape is preferable. The film having self-stretchability may or may not have self-stretchability in the other direction (the other direction is a direction perpendicular to the one direction in the film plane). .
The thickness of the said film layer 2 is not specifically limited, For example, they are 20 micrometers-120 micrometers.

(Design printing layer)
The design printing layer 3 is a solidified layer of printing ink. The printing ink is not particularly limited, and a conventionally known ink can be used.
The design print layer 3 may be a print layer on which a desired design (for example, a picture, a company name, an explanatory note, etc.) is represented, or a single pattern (for example, white, silver, etc.) or a pattern and colorless. It may be a printed layer. The non-patterned one-color or non-patterned colorless printing layer is also called a background printing layer.
The design print layer 3 may be composed of only the print layer on which the desired design is represented, or may be composed of only the patternless one-color print layer, or the desired print layer 3 It may be composed of a laminate of a printed layer on which the design is represented and a printed layer with a single pattern (for example, a multilayer in which a printed layer with a single pattern is provided on the back surface of the printed layer on which the design is represented) Printing structure).
The printing method for forming the design printing layer 3 is not particularly limited, and conventionally known printing methods such as gravure printing, flexographic printing, letterpress printing, and offset printing can be employed.

  The thickness of the design printing layer 3 is not particularly limited, but is preferably as small as possible. If the thickness of the design printing layer 3 is large, the impact due to laser light irradiation is not sufficiently applied to the outer surface of the container, and the unique information display same as the unique information displayed on the cylindrical label is printed on the outer surface of the container. May be difficult to do. From this viewpoint, the thickness of the design printing layer 3 is preferably 0.3 μm or more and less than 3 μm, more preferably 0.3 μm to 2 μm, and particularly preferably 0.3 μm to 1 μm.

(Coloring layer)
The coloring layer 4 can adopt a conventionally known configuration as long as it can be colored by laser light irradiation. For example, the color developing layer 4 includes a color former that develops color by laser irradiation and a binder that fixes the color former, and various additives as necessary.
Examples of the color former include an agent that develops itself by laser irradiation, and an agent that develops color (for example, changes to black by carbonization) on a binder resin around the laser irradiation.

As the color former, pigments, dyes, inorganic materials and the like can be used. Specific examples of color formers include simple metals, metal salts, metal hydroxides, metal oxides, pearlescent pigments, silicon compounds, mica, kaolins, silica sand, diatomaceous earth, and talc. It is done. In addition, pigments, dyes, and inorganic materials described in JP 2007-55110 A can also be used.
Examples of the simple metal include iron, zinc, tin, gold, mercury, silver, copper, cobalt, bismuth, and nickel. Examples of the metal salt include carbonates, nitrates, sulfates, phosphates, and acetates of the above metals. Examples of the metal hydroxide include antimony hydroxide, magnesium hydroxide, and aluminum hydroxide in addition to the metal hydroxide. Examples of the metal oxide include magnesium oxide, indium oxide, manganese oxide, palladium oxide and the like in addition to the metal oxide.
These color formers can be used alone or in combination of two or more.

Examples of the binder include olefin-based resins such as polyethylene, ethylene-α olefin copolymer, polypropylene, ethylene-vinyl acetate copolymer, ionomer resin, ethylene-acrylic acid copolymer, and acid-modified by modifying this with acid. Thermoplastic resins such as olefin resins, vinyl acetate resins, (meth) acrylic resins, vinyl chloride resins, styrene resins, carbonate resins, polyester resins, and the like can be used. In addition, as the binder, a photocurable resin, a two-component reactive resin, or the like can be used.
As the additive, a developer, an antioxidant, an ultraviolet absorber, a light stabilizer, a filler, a flame retardant, and the like can be used. The additive is added in a range that does not impair the color development of the color former.

The content of the color former in the color developing layer 4 can be adjusted within a conventionally known range, and is usually about 1% by mass to 50% by mass.
The thickness of the color developing layer 4 is not particularly limited, and is usually 0.7 μm to 30 μm, preferably 1 μm to 20 μm.

  The method for forming the color developing layer 4 is appropriately selected according to the material of the binder. Preferably, the color forming layer 4 can be formed by a method (solution coating method) in which a color former, a binder and an additive are dissolved in a solvent and this solution is applied to a base film and dried.

The color developing layer 4 develops a predetermined color by causing the color former to undergo thermal discoloration or carbonization by laser irradiation.
As the laser beam, YAG laser (yttrium, aluminum, garnet laser beam, wavelength = 1,064 nm), YVO ₄ laser (yttrium vanadate laser beam, wavelength = 1,064 nm), FAYb laser (Fiber Amplified Yterbium laser beam, wavelength = 1, 064 nm) can be used. Since these laser beams are transmitted through the film layer 2, the unique information display can be printed on the cylindrical label and the container without damaging the film layer 2.

[Cylinder label]
In the cylindrical label of the present invention, one direction of the label base material 1 is a circumferential direction, and the label base material 1 is formed in a cylindrical shape with the back side inside, and on the surface of the first side end portion of the label base material 1. It consists of the cylinder formed in the cylinder shape by overlapping the back surface of the 2nd side edge part of the label base material 1, and adhere | attaching the polymerization surface.
The superposed surfaces (the surface of the first side end portion and the back surface of the second side end portion) are bonded according to a known bonding method such as solvent bonding, adhesive bonding, and heat sealing.
In addition, the 1st side edge part of the label base material 1 is one of the both side parts extended in another direction in one direction both sides of the label base material 1, and the 2nd side edge part is the other of the both side parts. It is.

The cylindrical label of the present invention can be broadly classified into the following three types according to the properties of the label substrate 1 (the properties of the film forming the film layer 2) or the method for mounting on the container.
The first cylindrical label is formed into a cylindrical shape by overlaying and bonding the back surface of the second side end to the surface of the first side end of the label base material 1 having heat shrinkability. It is a label. This first cylindrical label is also called a cylindrical shrink, a shrink label, or a heat-shrinkable cylindrical label. Hereinafter, this type of cylindrical label is referred to as a “heat-shrinkable cylindrical label”.
The second cylindrical label is formed into a cylindrical shape by overlaying and bonding the back surface of the second side end to the surface of the first side end of the label base material 1 having self-stretchability. It is a label. This second cylindrical label is also called a stretch label or a self-expandable cylindrical label. Hereinafter, this type of cylindrical label is referred to as a “self-extensible cylindrical label”.
The 3rd cylindrical label is the 1st side edge part of the label base material 1 which has at least any one of heat shrinkability and a self-stretch property, or the label base material 1 which has neither heat shrink property and a self-stretch property. Is temporarily attached to the container, the label base material 1 is wrapped around the container, and the back surface of the second side end portion of the label base material 1 is bonded to the surface of the first side end portion, thereby forming a cylindrical shape. It is the cylindrical label shape | molded in. This third cylindrical label is also called a wound cylindrical label or a wound label. Hereinafter, this type of cylindrical label is referred to as a “wrapped cylindrical label”.
Further, hereinafter, when simply described as “cylindrical label”, it indicates any of a heat-shrinkable cylindrical label, a self-expandable cylindrical label, or a wound cylindrical label.

  As shown in FIG. 5, the heat-shrinkable cylindrical label 5 </ b> A and the self-expandable cylindrical label 5 </ b> B are arranged so that the back side of the label base material 1 is inward and one direction of the label base material 1 is the circumferential direction. It is rounded and formed into a cylindrical shape by overlaying and bonding the back surface of the second side end portion 12 to the surface of the first side end portion 11 of the label substrate 1.

As shown in FIG. 6, the wound cylindrical label 5 </ b> C temporarily bonds the back surface of the first side end portion 11 of the label base material 1 to the trunk portion 92 of the container 9, and the label base material 1 has one direction. After the label base material 1 is wound around the container 9 so as to be in the circumferential direction, the back surface of the second side end portion 12 is overlapped and adhered to the surface of the first side end portion 11 to form a cylindrical shape. Is formed.
FIG. 7 shows the process of forming the wound cylindrical label 5C. The back surface of the first side end 11 of the label base 1 is temporarily bonded to the body 92 of the container 9, and the label base 1 is attached to the adherend. The state before winding is shown. In addition, the part represented by the innumerable dots in FIG. 7 is a part where the back surface of the first side end portion 11 of the label substrate 1 is temporarily bonded to the outer surface of the container. Examples of means for temporarily adhering the first side end portion 11 to the body portion 92 include using an adhesive or an adhesive having low adhesive strength.

  In the illustrated example of the heat-shrinkable cylindrical label 5A, the self-expandable cylindrical label 5B, and the wound cylindrical label 5C, a dividing auxiliary line 6 is formed from the upper edge to the lower edge. The dividing auxiliary line 6 is indicated by a one-dot chain line. As the auxiliary auxiliary line 6, for example, a perforation line can be used. The number of auxiliary lines 6 for cutting may be one, or two or more. In the example of illustration, the two auxiliary wires 6 for cutting are formed on both sides of the bonding portion of the overlapping surface of the label base material 1.

[Method for producing container with cylindrical label]
The container with a cylindrical label according to the present invention includes a step of attaching a cylindrical label including at least the body part of a container having a cap part and a body part, and irradiating a laser beam from an outer surface of the attached cylindrical label. The unique information display is printed on the print area of the cylindrical label 5 and simultaneously the same unique information display as the display is printed on the outer surface of the container 9.
In the manufacturing method of the container with a cylindrical label of this invention, processes other than the said process may be included as needed.

(Installation process of cylindrical label)
The said cylindrical label 5 is arrange | positioned on the outer side of the container 9, and it mounts | wears with a container by making the cylindrical label 5 heat-shrink or self-restoration.
As shown in FIG. 8, the container 9 includes a bottom portion 91 that is a self-standing surface, a trunk portion 92 formed above the bottom portion 91, and a shoulder portion that is formed above the trunk portion 92 and has a diameter that decreases toward the top. 93 and a cap portion 94 that opens and closes a spout (not shown) provided above the shoulder portion 93.
The container 9 is filled with desired contents. The contents are not particularly limited, and examples include beverages such as nourishing tonics, seasonings, cosmetics, and pharmaceuticals.
The material of the container 9 (excluding the cap portion 94) is not particularly limited, and examples thereof include metal, resin, glass, and ceramic. Since the outer surface is easily damaged, the material of the container 9 is preferably glass. As the glass, conventional glass that has been used for beverage containers and the like is used.

When the heat-shrinkable tubular label 5A is used as the tubular label 5, the heat-shrinkable tubular label 5A is externally fitted around the container 9 including the cap portion 94 from the body 92 of the container 9. Thereafter, by heating the heat-shrinkable cylindrical label 5A to a required temperature, the heat-shrinkable cylindrical label 5A including the cap portion 94 and the trunk portion 92 can be attached to the container 9 as shown in FIG. By attaching the cylindrical label 5, the container 7 with the cylindrical label is obtained.
When the self-expandable tubular label 5B is used as the tubular label 5, the self-expandable tubular label 5B is applied by applying a pulling force so as to expand the diameter from the inside to the outside of the self-expandable tubular label 5B. The diameter of the heat shrinkable cylindrical label 5A is externally fitted around the container 9 including the cap part 94 from the body part 92 of the container 9, and then the self-expandable is released by releasing the tensile force. As shown in FIG. 9, the self-extensible cylindrical label 5 </ b> B including the cap portion 94 and the trunk portion 92 can be attached to the container 9.
When the wound cylindrical label 5C is used as the cylindrical label 5, as shown in FIG. 6, a label base having heat shrinkage is provided around the container 9 including the cap part 94 from the body 92 of the container 9. After the material 1 is wound to form the wound cylindrical label 5C, the wound cylindrical label 5C including the cap portion 94 and the trunk portion 92 is placed in the container 9 as shown in FIG. Can be attached to.

As shown in FIG. 10, the upper portion of the attached cylindrical label 5 bends inward along the upper surface of the cap portion 94 and comes into contact with the periphery of the upper surface of the cap portion 94.
Furthermore, the inner surface of the attached cylindrical label 5 is in contact with the outer peripheral surface of the cap portion 94 and the whole or part of the outer surface of the trunk portion 92 of the container 9.
When the trunk portion 92 has a straight barrel shape, the inner surface of the attached cylindrical label 5 is in contact with the entire outer surface of the trunk portion 92 of the container 9. When there are irregularities on the outer surface of the container 9 body portion 92, the inner surface of the attached cylindrical label 5 is in contact with the convex portion of the body portion 92 of the container 9.
Note that the inner surface of the cylindrical label 5 is in contact with the container 9 (the cap portion 94 or the trunk portion 92), the inner surface and the container 9 are in close contact with each other, or a slight gap (for example, a gap of 2 mm or less). And the inner surface and the container 9 are close to each other. Further, since the inner surface of the cylindrical label 5 is not bonded to the outer surface of the container 9, the close contact portion naturally forms the body portion of the container 9 when the attached cylindrical label 5 is divided. Leave 92.

  In the above description, the tubular label 5 is externally fitted or wound around the container 9 including the cap portion 94 from the body portion 92 of the container 9, but the present invention is not limited to this. The cylindrical label may be fitted or wound only around the container body. In particular, in the case of a self-expanding cylindrical label and a cylindrical label that does not have heat-shrinkability and self-stretchability (that is, in the case of a cylindrical label that does not have heat-shrinkability), the cap as described above. Since it is hard to bend so that it may touch the upper surface of a part etc., the form attached only to the trunk | drum is preferable (not shown).

(Printing process)
Laser light is irradiated from the outer surface of the cylindrical label mounted on the container to print the unique information display on the cylindrical label, and at the same time, the same unique information display as the display is printed on the outer surface of the container.
The unique information display printed on the cylindrical label and the unique information display printed on the container are the same in the sense that the same content can be read from the display, and the color of the display (printing) Note that it doesn't mean the same thing, from darkness to lightness. In the present invention, the unique information display printed on the cylindrical label often appears more clearly than the unique information display printed on the container.

  In order to be able to print the unique information display on the outer surface of the cylindrical label 5 and the container 9 at the same time when the laser beam is irradiated, the laser beam is a portion where the inner surface of the cylindrical label 5 and the outer surface of the container 9 are in contact with each other. It is preferable to irradiate from the outer surface of the cylindrical label 5 correspondingly. More preferably, it is preferable to irradiate the laser beam corresponding to the location where the inner surface of the cylindrical label 5 is in close contact with the container 9. By irradiating such a portion with laser light, the impact of the laser light is particularly easily applied to the container 9.

The cylindrical label 5 using the first label substrate 11A irradiates laser light to an arbitrary place. As said arbitrary location, when it has a printed layer with which the design was represented, the location which does not overlap with the design is preferable, for example. In addition, when the design printing layer 3 consists only of a patternless printing layer, there is no restriction | limiting in particular in the location which irradiates a laser beam.
The cylindrical label 5 using the second label base material 11B irradiates the portion where the coloring layer 4 is provided with laser light.

When laser light is applied to the labeled container 9 on which the cylindrical label 5 using the first label base material 11A is mounted, the ink component of the design printing layer 3 at the location where the laser light hits scatters and the laser When light penetrates the design printing layer 3 and hits the outer surface of the container 9 and applies an impact to the container 9, the container 9 is finely scratched.
When the ink component of the design printing layer 3 is scattered, the portion is visually different from the surroundings of the portion like a stamped character, and the unique information display appears on the design printing layer 3 of the label (so that the display can be visually recognized). Become). When the container 9 is finely scratched, a visual difference is generated from the periphery of the wound, and the same unique information display as the label display appears on the outer surface of the container 9 (the display can be visually recognized).
Depending on the irradiation condition of the laser beam, the scattered constituent material of the design print layer 3 adheres to the scratches on the container 9, and the unique information displayed on the outer surface of the container 9 from the scratches and the constituent materials. The visibility of will increase.

When laser light is applied to the labeled container 9 on which the cylindrical label 5 using the second label base material 11B is mounted, the color developing layer 4 at the location where the laser light hits the color, and the laser light is applied to the color developing layer. By passing through 4 and hitting the outer surface of the container 9 and applying an impact to the container 9, the container 9 is finely scratched.
Similarly to the above, when the container 9 is finely scratched, specific information is displayed on the outer surface of the container 9, but depending on the laser light irradiation conditions, the constituent material of the coloring layer 4 may be From the scratches and their constituent materials, the visibility of the unique information displayed on the outer surface of the container 9 is increased.

  Further, in the case where the design printing layer 3 is provided on the back surface of the coloring layer 4 in the second label base material 11B, the laser light penetrates the coloring layer 4 and the design printing layer 3 and the outer surface of the container 9 In this case, the container 9 is finely scratched, and further, the constituent material of the coloring layer 4 and / or the design printing layer 3 adheres on the scratch of the container 9. In this case, if the thickness of the design print layer 3 is too large, the laser beam is unlikely to act on the outer surface of the container 9, so that the design print layer 3 is preferably a thin layer as described above. The thickness of the design printing layer 3 is preferably 3 times or less, more preferably 2 times or less the thickness of the coloring layer 4.

  In addition, since the constituent material of the design printed layer 3 is likely to adhere onto the scratches on the container 9, at least laser light will be irradiated on the innermost surface of the label base material 1 (that is, the contact surface with the container 9). A delayed heat-sensitive adhesive or the like may be provided at the location (not shown). When a container with a cylindrical label using such a label substrate 1 is irradiated with laser light, the adhesive at the location where the laser light hits is activated by heat and adheres to the outer surface of the container. The constituent material of the design print layer 3 comes to adhere. For this reason, when removing a cylindrical label from a container, since the said adhesive agent and the said constituent material adhere to a container, the visibility of a specific information display becomes still higher.

The unique information display typically includes a production number, but is not limited to the production number as long as the display is traceable. In addition, the unique information display may be a figure, a symbol, or the like in addition to being represented by characters.
In addition, the display printed by laser irradiation may include other displays on condition that the display includes unique information display. Other displays include, for example, the expiration date, a prize application ID when a prize campaign is performed, a two-dimensional code, a trap such as Atari or Loss.

The irradiation condition of the laser beam is set so that the unique information display can be simultaneously printed on the cylindrical label 5 and the container 9.
As shown in the following examples, depending on the laser light irradiation conditions, the unique information display may not be simultaneously printed on the cylindrical label 5 and the container 9. In particular, when the intensity of the laser beam and the scanning speed are relatively small, the unique information display tends not to be printed on the cylindrical label 5 and the container 9 at the same time.

As the laser light, it is preferable to use a YAG laser beam (wavelength = 1,064 nm), a YVO ₄ laser beam (wavelength = 1,064 nm), or the like. By using these, the unique information display can be printed on the label and the container 9 without damaging the film layer 2. The laser beam is not limited to the above-described laser beam as long as it has such a function.
Further, the laser beam may be irradiated once, or may be irradiated a plurality of times so as to represent the same part. By performing laser irradiation a plurality of times, a clear and thick display can be printed.
The frequency of the laser light is, for example, 10 kHz to 100 kHz, preferably 20 kHz to 60 kHz. If the frequency (energy) is small, the container 9 may not be sufficiently damaged.
Moreover, the focal distance of a laser beam is -40 mm-40 mm, for example, Preferably, it is -30 mm-30 mm. If the focal length is too short, the film layer 2 may be damaged. On the other hand, if the focal length is too long, the container 9 may not be sufficiently damaged.
The scanning speed of the laser beam is, for example, 200 mm / second to 3000 mm / second, and preferably 300 mm / second to 2500 mm / second.
The intensity of the laser light is, for example, 10% to 100%, preferably 20% to 100%, and more preferably 70% to 100%.

  The display including the unique information display 8 is displayed at a desired location of the cylindrical label 5 by the irradiation of the laser beam, and the display including the same unique information display as the display is displayed on the container so that the carbon is transferred over the display. 9 (see FIG. 11).

[Container with cylindrical label]
As shown in FIG. 11, the container 7 with a cylindrical label of the present invention is attached to the outer surface of the container 9 including the container 9 having a cap portion 94 and a trunk portion 92, and the cap portion 94 and the trunk portion 92. The cylindrical label 5 has a display including the unique information display 8 and the unique information display 8 which is the same as the unique information display 8 is displayed on the outer surface of the container 9. It is expressed in
The unique information display 8 of the cylindrical label 5 is represented on the coloring layer 4 or the design printing layer 3, and the unique information display of the container 9 is represented by a scratch attached to the outer surface of the container 9 or the color development on the scratch. It is represented by the adhesion of the constituent materials of the layer 4 and / or the design print layer 3.
The inner surface of the cylindrical label 5 at the location where the unique information display 8 is displayed is in contact with the outer surface of the container 9.

Since the cylindrical label 5 includes the cap portion 94 and the trunk portion 92 and the cylindrical label 5 is mounted on the cylindrical label-equipped container 7, a design or the like can be provided on the substantially same area as the surface area of the container 9 via the cylindrical label 5. A desired display can be represented.
The consumer who purchased the container 7 with the cylindrical label of the present invention removes the cylindrical label 5 from the container 9 in order to open the cap portion 94 in order to use the contents. The cylindrical label 5 can be easily removed by cutting a part (band-shaped part) of the cylindrical label 5 in the vertical direction using the dividing auxiliary line 6.
Since the same unique information display 8 is displayed on the cylindrical label 5 and the container 9, the cylindrical label-equipped container 7 of the present invention is displayed on the container 9 even after the cylindrical label 5 is removed and discarded. The container can be traced from the unique information display.

  Hereinafter, the present invention will be described in detail with reference to examples. However, the present invention is not limited to the following examples.

(Materials used)
Film layer: heat-shrinkable polyester film having a thickness of 45 μm (manufactured by Toyobo Co., Ltd.).
Coloring layer: Functional ink (manufactured by Toyo Ink Co., Ltd., trade name “Elbima”).
Design printing layer: White ink (manufactured by DIC Corporation) in which a white pigment is blended with a urethane resin.

(Preparation of label substrate I)
The functional ink was applied to the back surface of the polyester film by a gravure method and solidified, and then the white ink was applied to the back surface by a gravure method and solidified. In this way, from the film layer, the 1 μm thick colored layer provided on the back of the colored layer, and the 1 μm thick non-patterned white design printed layer provided on the back of the colored layer. A label substrate I was produced.

(Preparation of label substrate II)
The white ink was applied to the back surface of the polyester film by a gravure method and solidified. Thus, the label base material II which consists of a film layer and the 1-micrometer-thick non-pattern white design printing layer provided in the solid shape on the back surface was produced.

(Preparation of heat-shrinkable cylindrical label I)
The label substrate I was formed into a cylindrical shape so that the design printing layer was on the inside, and a heat-shrinkable cylindrical label I having a circumference of about 130 mm and a height of about 110 mm was produced.
(Preparation of heat-shrinkable cylindrical label II)
The label substrate II was formed in a cylindrical shape so that the design printing layer was on the inside, and a heat-shrinkable cylindrical label I having a circumference of about 130 mm and a height of about 110 mm was produced.

[Examples 1 to 28 and Reference Examples 1 to 12]
Examples 1 to 28 and Reference Examples 1 to 12 used heat-shrinkable cylindrical labels I or II as shown in Table 1, respectively.
In each example, the heat-shrinkable cylindrical label I or II is a commercially available glass bottle (manufactured by Toyo Glass Co., Ltd., the circumference of the cylindrical body is about 110 mm. The height (from the bottom to the top of the cap part) is about 108 mm. The heat-shrinkable cylindrical label was attached to the container 9 by heating after being externally fitted from the body part to the cap part. In the obtained container with a cylindrical label, the inner surface of the heat-shrinkable cylindrical label was in contact with at least the outer surface of the body of the container.

For the containers with cylindrical labels of Examples 1 to 28 and Reference Examples 1 to 12, from the outer surface of the cylindrical label, under the conditions shown in Table 1, a FAYb laser irradiation device (manufactured by Panasonic Electric Works SUNX Co., Ltd., trade name “LX -Z256 ") was used to irradiate laser light so as to represent the number" 1234.56.7890 ".
The laser light implementation condition A in Table 1 indicates a scanning speed of 500 mm / second and a frequency of 20 kHz. The implementation condition B of laser light in Table 1 shows a scanning speed of 2000 mm / second and a frequency of 40 kHz.

After the laser light irradiation, the outer surface of the cylindrical label was visually observed, and the visibility of the number “1234.56.7890” was evaluated according to the following criteria. The results are shown in Table 1.
Subsequently, the cylindrical label was removed from the container, the outer surface of the container was visually observed, and the visibility of the number “1234.56.7890” was evaluated according to the following criteria. The results are shown in Table 1.
○: The display (numerals) was dark and the visibility was good.
(Triangle | delta): Display (number) was thin and visibility was not so good.
X: Display (number) was hardly recognized.

  DESCRIPTION OF SYMBOLS 1 ... Label base material, 2 ... Film layer, 3 ... Design printing layer, 4 ... Color development layer, 5 ... Cylindrical label, 6 ... Supplementary line for parting, 7 ... Container with cylindrical label, 8 ... Specific information display

Claims (3)

A step of attaching a cylindrical label including at least the body part of a container having a cap part and a body part;
By irradiating a laser beam from an outer surface of the mounted cylindrical label, and at the same time printing a unique information displayed on the tubular label, it has a step, for printing the same unique information display and the display on the outer surface of the container ,
By irradiating the laser beam corresponding to the location where the inner surface of the cylindrical label is in contact with the outer surface of the container, the outer surface of the container is damaged and a part of the constituent material of the cylindrical label is damaged. By printing on the unique information display,
A method for producing a container with a cylindrical label. The cylindrical label is provided with at least one of a design print layer and a color development layer, and irradiates the laser beam corresponding to a location where at least one of the design print layer and the color development layer is provided, The manufacturing method of the container with a cylindrical label of Claim 1. A container having a cap part and a body part, and a cylindrical label attached to the outer surface of the container including at least the body part,
The the tubular label, together with the specific information displayed is represented, the same unique information display and the display are represented on the outer surface of said container,
The container with a cylindrical label, wherein the unique information displayed on the outer surface of the container is expressed by attaching a part of the constituent material of the cylindrical label to a scratch attached to the outer surface of the container.

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