JP6863756B2 - Matte shrink label and labeled container - Google Patents

Description

The present invention generally relates to a matte shrink label, and more specifically, the gap portion of the ink clear portion is closed so that the contents of the container cannot be directly seen from the outside, and the back surface of the base film is solid. When there is a printing layer for printing or the like, the present invention relates to a matte shrink label improved so that the difference in color tone between the ink clear portion and other portions can be suppressed to a small size. The invention also relates to a labeled container fitted with such a matte shrink label.

In recent years, with the spread of PET bottled beverages, various beverage manufacturers have been selling various products. These PET bottled beverages are decorated with labels that emphasize design in order to clarify the difference from other companies and to improve the image of consumers. Among them, in order to enhance the design and expressiveness, a technique of providing a matte layer (matte layer) on a part of the surface on the non-contact side with respect to the label container is attracting attention (see, for example, Patent Document 1).

With reference to FIGS. 2 (A), (B) and (C), the conventional matte shrink label 1 is provided with a back surface printing layer (not shown) on the side surface in contact with the container 2, while the back surface is provided. A base film 3 having an end portion 1a and an other end portion 1b is provided. The base film 3 is bent into a tubular shape, and one end portion 1a is superposed on the other end portion 1b and bonded with a solvent seal. A matte varnish for forming a matte tone is applied to the surface of the base film 3, except for an ink clear portion 4 (a portion to which the matte varnish is not applied) for not hindering adhesion, and a matte layer 5 is formed. .. Such a label with the matte layer 5 formed creates a novel design.

Japanese Unexamined Patent Publication No. 2007-99332

However, as shown in FIG. 2C, the matte layer is not formed in the ink clear portion 4, the transparency of the base film 3 remains as it is, and the gap portion of the matte shrink label is used to enter the container 2. When the filled contents can be seen directly, or when there is a printing layer (solid printing on the entire surface, pattern printing, etc.) on the back surface of the base film 3, there is a problem that the color tone of the ink clear portion is different.

The present invention has been made to solve the above-mentioned problems, and when the gap portion of the ink clear portion is closed so that the contents of the container cannot be directly seen from the outside and there is a printing layer on the back surface. It is an object of the present invention to provide a matte shrink label improved so as to suppress the difference in color tone of the ink clear portion as much as possible.

Another object of the present invention is to provide a container fitted with such a matte shrink label.

The present invention comprises a substrate film having one end and the other end. The base film is bent into a tubular shape, and the one end portion is superposed on the other end portion and adhered. On the surface of the base film, a matte layer for forming a matte tone is formed except for an ink clear portion for not hindering the adhesion. A reproduction printing layer for reproducing a color close to the matte tone is provided on the back surface of the base film, which corresponds to the ink clear portion. A printing layer is provided inside the tubular shape of the mat layer, and the mat layer does not contain a colorant.

According to the present invention, since a reproduction printing layer for reproducing a color close to the matte tone is provided on the back surface of the base film and the portion corresponding to the ink clear portion, the ink clear portion is provided. If the gaps are hidden by a reproduction printing layer to reproduce a color close to matte, and the contents of the container cannot be seen directly from the outside, or if there is a solid printing layer or a pattern printing layer on the back side, from the front side The difference in color tone when viewed is kept small.

A shrink label using a heat-shrinkable film as the base film, a stretch label using a self-stretchable film as the base material, and a stretch shrink label using a heat-shrinkable and self-stretchable film as the base material. Any label such as a hot melt-wrapped label having a hot melt layer on one side of the base material and a heat-sensitive label having a heat-sensitive adhesive layer on one side of the base material may be used.

The base film may be any self-supporting film, and can be appropriately selected and used from, for example, a plastic film, paper, a metal foil, or a laminate thereof, depending on the type of label. In order to obtain a glossy appearance, it is preferable that the base material is a transparent plastic film in the case of a single layer, and the outermost layer is made of a transparent plastic film in the case of a laminated body.

The surface printing layer is applied to the matte portion (the portion to be matted) in the design of the label design.

The printing ink used for the front side printing layer and the back side printing layer (including the white solid printing layer) is not particularly limited as long as it can be used for gravure printing.

When a heat-shrinkable plastic film is used as the base film, the material of the plastic film is, for example, a polyester-based resin, a styrene-based resin (styrene-butadiene copolymer, etc.), or a polyolefin-based film. A resin (polyester, polypropylene, etc.), a thermoplastic resin such as polyvinyl chloride or polyvinylidene chloride is preferably used. The polyester-based resin includes various polyesters composed of a dicarboxylic acid component and a diol component. As the polyester resin, terephthalic acid and ethylene glycol are used as the main components of the dicarboxylic acid component and the diol component, respectively, and the copolymerization components are dicarboxylic acids such as isophthalic acid, phthalic acid, adipic acid, sebacic acid, and naphthalenedicarboxylic acid. A copolymerized polyester using a diol component such as an acid, a diethylene glycol, a neopentyl glycol, a polyalkylene glycol, and 1,4-cyclohexanedimethanol is preferably used.

The styrene-based resin refers to all resins having styrene as one of the constituent elements, such as polystyrene, impact-resistant polystyrene, graft-type impact-resistant polystyrene, styrene-conjugated diene block copolymer, and styrene-conjugated diene block elastomer.

Polystyrene is a homopolymer composed of styrene derivatives such as styrene, α-methylstyrene, and p-methylstyrene, and not only mutual copolymers but also monomers copolymerizable with styrene and styrene derivatives, such as acrylic acid and methacrylic acid. Coweight with acids, aliphatic unsaturated carboxylic acids such as Na, K, Li, Mg, Ca, Zn, Fe, etc., aliphatic unsaturated carboxylic acids such as acrylic acid ester, methacrylic acid ester, and derivatives thereof. Including coalescence.

The impact-resistant polystyrene refers to a mixture of polystyrene and synthetic rubber such as polybutadiene or polyisoprene, or polystyrene graft-polymerized on synthetic rubber such as polybutadiene or polyisoprene.

Further, the graft type impact resistant polystyrene is basically a structure in which polystyrene is contained in a continuous phase made of polystyrene and particles made of a rubber-like polymer obtained by grafting polystyrene to a rubber component such as polybutadiene are dispersed. It means what was done.

The styrene-conjugated diene block copolymer includes a styrene block, a block of a conjugated diene such as butadiene and isoprene, and / or a random block of styrene and a conjugated diene, and has a styrene content of 51 to 99% by mass and a conjugated diene. A copolymer having a content of 49 to 1% by mass. A ternary / quaternary copolymer containing other components in a styrene-butadiene block copolymer is also included in the present invention. Other components include, for example, acrylic acid, methacrylic acid, metal salts thereof (for example, metal salts such as Na, K, Li, Mg, Ca, Zn, Fe), and fats such as acrylic acid ester and methacrylic acid ester. Examples thereof include group carboxylic acids and derivatives thereof.

The styrene-conjugated diene block elastomer includes a styrene block, a block of a conjugated diene such as butadiene and isoprene, and / or a random block of styrene and a conjugated diene, and has a styrene content of 1 to 50% by mass and a conjugated diene. An elastomer having a content of 99 to 50% by mass.

The center seal solvent for the adhesion is preferably 1,3 dioxolane or tetrahydrofuran.

The matte varnish that forms the matte layer (matte layer) is a clear varnish made of a binder resin for gravure coating, which is mainly composed of a thermoplastic resin such as a cellulose resin, a styrene resin, an acrylic resin, or a vinyl resin. Is used.

The filler is not particularly limited, and known or commonly used particles for forming a mat layer can be used. Examples of the particles include organic particles such as acrylic beads, hollow acrylic beads, and melamine resin; and inorganic particles such as silica, alumina, calcium carbonate, and barium sulfate. These particles can be used alone or in combination of two or more. The average particle size of the particles having a matting action varies depending on the type of particles, but is usually 0.5 to 30 μm, preferably 1 to 20 μm.

The reproduction printing layer is not limited to the ink, but an ink that reproduces a color close to the outer matte tone is preferably used by adjusting the ink such as white ink and adjusting the plate depth of the printing plate.

The labeled container of the present invention includes, for example, beverages such as tea, coffee, black tea, water, soft drinks, carbonated drinks, and juices; alcoholic beverages such as sake and wine; liquid detergents; soy sauce, mirin, mentsuyu, oil, etc. It can be used as a container for seasonings and the like.

According to the present invention, since a reproduction printing layer for reproducing a color close to a matte tone is provided on the back surface of the base film and the portion corresponding to the ink clear portion, the gap portion of the ink clear portion is provided. Is hidden by the reproduction printing layer, and the contents of the container are not directly visible from the outside. The result is a matte shrink label that gives aesthetics.

Further, when there is a printing layer such as solid printing on the back surface of the base film, the matte shrink label is obtained in which the difference in color tone between the ink clear portion and the other portion is suppressed to be small.

(A) is a perspective view of a matte shrink label according to the present invention, (B) is a cross-sectional view taken along the BB plane in FIG. 1 (A), and (C) is a matte shrink label attached. It is a perspective view of the container. (A) is a perspective view of a conventional matte shrink label, (B) is a cross-sectional view taken along the BB plane in FIG. 2 (A), and (C) is a conventional matte shrink label attached. It is a perspective view of a container.

The purpose of obtaining a matte shrink label that has been improved so that the contents of the container cannot be seen directly from the gaps in the ink clear part is to make the back surface of the base film matte to the part corresponding to the ink clear part. This was achieved by providing a reproduction print layer for reproducing close colors. Hereinafter, examples of the present invention will be described with reference to the drawings. In each figure, the same reference number is assigned to the same part, and the description is not repeated.

With reference to FIGS. 1A, 1B, and 1C, the matte shrink label 1 according to the first embodiment is provided with a back surface printing layer (not shown) on the side surface in contact with the container 2. Further, a base film 3 having one end portion 1a and the other end portion 1b is provided. The base film 3 is bent so as to have a tubular shape, and one end portion 1a is superposed on the other end portion 1b and adhered. A matte layer 5 for forming a matte tone is formed on the surface of the base film 3 by applying a matte varnish, except for the ink clear portion 4 for not hindering adhesion. A reproduction printing layer 6 for reproducing a color close to the matte tone is provided on the back surface of the base film 3 and corresponding to the ink clear portion 4. The ink clear portion 4 is provided so as to extend in the height direction of the matte shrink label 1, and the reproduction print layer 6 is also provided so as to extend in the height direction so as to hide it.

As shown in FIG. 1C, such a matte shrink label 1 is attached to a container 2 such as a PET bottle and heat-shrinked before use. The heat shrinkage is performed by attaching the matte shrink label 1 to the body of a container 2 such as a PET bottle, passing the attached container through a shrink tunnel, and shrinking the label. The contents of the container 2 may be filled before the shrink label 1 is attached to the container, or after the container is contracted through the shrink tunnel.

Since the reproduction printing layer 6 for reproducing a color close to a matte tone is provided on the back surface of the base film 3 and corresponding to the ink clearing portion 4, the gap portion of the ink clearing portion 4 is reproduced and printed. It is concealed by the layer 6 and the contents of the container 2 are not directly visible in appearance. As a result, it is excellent in aesthetics.

The examples disclosed this time should be considered to be exemplary in all respects and not restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and it is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

According to the matte shrink label according to the present invention, the gap portion of the ink clear portion is hidden by the reproduction printing layer, and the contents of the container cannot be directly seen from the outside. The result is a matte shrink label that gives aesthetics.

1 Matte shrink label 1a One end 1b The other end 2 Container 3 Base film 4 Ink clear part 5 Matte layer 6 Reproduction printing layer

Claims (3)

With a substrate film having one end and the other end,
The base film is bent into a tubular shape, and the one end portion is overlapped and adhered on the other end portion.
On the surface of the base film, a matte layer for forming a matte tone is formed except for an ink clear portion for not hindering the adhesion.
A reproduction printing layer for reproducing a color close to the matte tone is provided on the back surface of the base film, which corresponds to the ink clear portion .
A printing layer is provided inside the mat layer in a tubular shape.
The matte layer is a matte shrink label that does not contain a colorant. The matte shrink label according to claim 1, wherein the adhesion is performed by a solvent seal. A labeled container to which the matte shrink label according to claim 1 or 2 is attached.

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