JP7614898B2 - Printable labels - Google Patents

Description

The present invention relates to a label for printing.

Traditionally, labels known as POP labels or eye-catching labels (hereinafter, such labels will be simply referred to as POP labels) that display catchy slogans related to a product have been used as an effective means of promoting product sales. Such labels usually have an adhesive part that can be attached to an item, and a non-adhesive part that protrudes from the item. By attaching the adhesive part to the item, the non-adhesive part protrudes from the item, which can catch the consumer's eye when the item is displayed (see, for example, Patent Document 1).

JP 2008-191522 A

Incidentally, in recent years, the move away from plastic has been accelerating due to environmental considerations. For labels like the ones mentioned above, a resin base material has been used from the standpoint of durability, but in line with the move away from plastic, the use of a paper base material is being considered.

However, paper substrates have low wet strength and are easily destroyed when wet, limiting their uses. POP labels are sometimes affixed to containers used in bathrooms, such as shampoo bottles, and are sometimes stored in high-temperature, high-humidity environments, such as in the summer, so they are required to be effective in appealing to consumers even in high-temperature, high-humidity environments. For this reason, they are required to retain the label shape they had when affixed (retain standing ability) even in high-temperature, high-humidity environments.

The present invention aims to provide a print label that is affixed to an article in a protruding state and that can maintain the label shape when affixed, even in a high-temperature, high-humidity environment.

The present invention is a print label that is attached to an article in a state where it is exposed to the outside from the article, and the print label has a paper-based substrate, an adhesive layer, and a resin layer that is disposed adjacent to the adhesive layer side of the paper-based substrate and is disposed at least in the exposed portion that is exposed from the article.

The present invention provides a print label that is affixed to an article in a protruding state and that can maintain the label shape when affixed, even in a high-temperature, high-humidity environment.

1 is a photograph showing the phenomenon in which a POP label bends toward the printed surface. FIG. 2 is a schematic diagram showing a manufacturing process in which a POP label is affixed to an adherend (article) using a labeling machine. FIG. 2 is a perspective view showing a label of an embodiment attached to an article. FIG. 4 is a side view seen from the direction indicated by reference numeral 2 in FIG. 3 . FIG. 1 is a schematic cross-sectional view showing one embodiment of a print label. FIG. 11 is a schematic cross-sectional view showing another embodiment of the print label. FIG. 11 is a schematic cross-sectional view showing another embodiment of the print label.

In this specification, the range "X-Y" means "X or more and Y or less." Furthermore, unless otherwise specified, operations and measurements of physical properties are performed under conditions of room temperature (20-25°C) and relative humidity of 45-55%. Furthermore, in this specification, (meth)acrylic acid means both acrylic acid and methacrylic acid.

The first embodiment of the present invention is a print label that is attached to an article in a state where it is exposed to the outside from the article, and the print label has a paper-based substrate, an adhesive layer, and a resin layer that is disposed adjacent to the adhesive layer side of the paper-based substrate and is disposed at least in the exposed portion that is exposed from the article.

According to this embodiment, it is possible to provide a print label that is affixed to an article in a protruding state and that can maintain the label shape when affixed, even in a high temperature and high humidity environment (e.g., 60°C, 95% RH).

POP labels are sometimes affixed to containers used in bathrooms, such as shampoo bottles, and are required to be effective in appealing to consumers even in high temperature and high humidity environments. The inventors have discovered that in such high temperature and high humidity environments, the POP label bends forward as if bowing, as shown in Figure 1. It is presumed that this phenomenon of the label bending forward occurs as follows.

As shown in Figure 2, POP labels are usually produced as rolls and then attached to the substrate by a labeling machine. For the convenience of the labeling machine, the POP label is usually attached so that the MD direction of the label is horizontal when viewed from the substrate. In addition, many of the pulp fibers in the paper-based substrate are oriented in the flow direction (MD direction) of the roll during production. When a POP label is placed in a high-temperature, high-humidity environment, the pulp fibers absorb water and the fiber width increases, and the paper-based substrate stretches in the width direction (CD direction) (perpendicular to the MD direction). On the other hand, the paper-based substrate on the printing surface (front surface) of the POP label is somewhat prevented from stretching in the width direction by the resin contained in the printing (ink) and the resin contained in the print-receiving layer, even if the paper-based substrate absorbs water in a high-temperature, high-humidity environment. Therefore, it is thought that the label is easily bent in the width direction. In addition, the protruding exposed portion of a POP label is prone to warping under its own weight because it is not restrained by the adhesive layer. After identifying this issue, the researchers conducted further research and found that providing a resin layer can suppress the elongation of the back surface (the surface opposite the printed surface) of the paper-based substrate, thereby suppressing warping caused by the elongation of the back surface, leading to the completion of the present invention. The resin layer can also be considered a restraining layer that restricts the elongation of the paper-based substrate.

The following describes an embodiment of the present invention with reference to the drawings.

As shown in FIG. 3, the label 100 of the embodiment is used by attaching it to the item 10. The label 100 is called a POP label or an eye-catching label, and serves to catch the consumer's eye when the labeled item 20 with the label 100 attached to the item 10 is displayed in a store.

The item 10 is a commodity displayed in a store, and may be, for example, cosmetics, medicines, daily necessities, etc., but there is no particular limit to the type of commodity. Therefore, the shape of the item 10 shown in the figure is merely an example and may vary depending on the type of commodity, and may be, for example, in the shape of a box or a bottle.

The label 100 is attached in a protruding state from the item 10 and has a printing section 101 that displays information.

The printing unit 101 displays, for example, a catchy slogan touting sales performance and efficacy as information about the item 10, but there is no particular limit to the type of information that the printing unit 101 displays, and it may display, for example, information about a contest or announcements about a new product. Furthermore, the information that the printing unit 101 displays is not limited to letters and numbers, and may be, for example, illustrations, photographs, graphs, or a combination of these.

As shown in FIG. 4, the label 100 has an adhesive layer 110 that has adhesive properties with respect to the article 10, a resin layer 120, a paper-based substrate 130, and a print-receiving layer 140. The label 100 is formed by printing a printing portion 101 on a print label that is composed of the adhesive layer 110, the resin layer 120, the paper-based substrate 130, and the print-receiving layer 140.

The label 100 may have adhesive properties at the exposed portion 104, which is the side that protrudes from the article 10. However, in this embodiment, a so-called glue-killing treatment is performed on the surface of the adhesive layer 110 of the exposed portion 104, which is the side that protrudes from the article 10, by forming a non-adhesive masking layer 106 made of, for example, varnish, and the label 100 does not have adhesive properties at the exposed portion 104, which is the side that protrudes from the article 10. For this reason, in this embodiment, only the attachment portion 103 can be attached to the article 10.

Alternatively, the adhesive layer 110 may be formed only on the attachment portion 103 without forming the adhesive layer 110 on the exposed portion 104 protruding from the article 10, thereby making it possible to attach only the attachment portion 103 to the article 10 (see FIG. 6).

The adhesive layer 110 has adhesiveness to the article 10. The adhesive layer 110 may have removability so that the label 100 can be peeled off even after it has been affixed to the article 10. It is also preferable that the adhesive layer 110 does not leave any adhesive residue on the article 10 after the label 100 is peeled off.

The paper-based substrate 130 may have an easy-adhesion layer to improve the adhesion of the printed portion. The thickness of the paper-based substrate 130 is appropriately designed and is not particularly limited, but is, for example, 10 μm to 250 μm.

The size of the label 100 is not particularly limited, but may be, for example, 50 mm x 50 mm, and the attachment portion is 25 mm x 50 mm. The size of the exposed portion is also not particularly limited, but taking into account attachment to an article, may be, for example, 10 to 90% of the label area, or 20 to 80%.

For example, the item to which the label of the present invention is affixed is not limited to a product, and labels affixed to items other than products to indicate some information are also included in the scope of the present invention.

In addition, the shape of the label of the present invention is not particularly limited, and it does not have to be rectangular like the label 100 of the above embodiment, and may be any other shape.

Figure 5 is a schematic cross-sectional view showing one embodiment of a label for printing. The label for printing 200 is a label for printing the printing part 101 before the label 100 is attached to an article. In other words, the label for printing is a substrate on which printing is performed. The label for printing 200 shown in Figure 5 is formed by laminating a release liner 150, an adhesive layer 110, a resin layer 120, a paper-based substrate 130, and a print-receiving layer 140 in this order. Each layer has approximately the same size in the surface direction. In addition, a part of the adhesive layer 110 has a non-adhesive masking layer 106 made of, for example, varnish. The release liner 150 is a member that has the function of protecting the adhesive layer and preventing a decrease in adhesiveness. The release liner 150 is peeled off from the label when it is attached to an adherend. In the label for printing 200 of Figure 5, the resin layer 120 is disposed on the entire surface of the paper-based substrate 130. This form in which the resin layer 120 is disposed over the entire surface of the paper-based substrate 130 is preferable because it further enhances the effect of the present invention of suppressing stretching of the back surface.

Figure 6 is a schematic cross-sectional view showing another embodiment of a print label. The print label 210 shown in Figure 6 has a release liner 150, an adhesive layer 110, a resin layer 120, a paper-based substrate 130, and a print-receiving layer 140. In Figure 6, the adhesive layer 110 and the resin layer 120 are disposed on the paper-based substrate 130. The adhesive layer 110 is the portion that is attached to the article, and the resin layer 120 is disposed on the exposed portion 104. In this manner, the resin layer 120 may be disposed on a portion of the paper-based substrate 130.

Figure 7 is a schematic cross-sectional view showing another embodiment of a print label. The print label 220 shown in Figure 7 has a release liner 150, an adhesive layer 110, a resin layer 120, a paper-based substrate 130, and a print-receiving layer 140. In this embodiment, for example, when printing the print portion 101 on the adhesive layer surface corresponding to the exposed portion 104, a non-adhesive masking layer 106 made of varnish or the like is formed. Therefore, the print label 220 of this embodiment does not have a masking layer 106 formed.

Below, we will explain each component that makes up the print label.

[Print Receiving Layer]
In a preferred embodiment, the printing label further has a print-receiving layer having a binder resin on the side of the paper-based substrate opposite to the side on which the adhesive layer is provided. By providing the print-receiving layer, the adhesion of the printed portion is improved. In addition, since the print-receiving layer contains a binder resin, it suppresses the elongation of the paper-based substrate even in a high-temperature and high-humidity environment, so that a difference in length with the back surface, which is prone to elongation, is likely to occur, and the label is likely to warp. Therefore, in the embodiment in which the print-receiving layer is provided, the effect of the present invention (warping suppression) is more easily obtained, which is preferable.

The binder resin constituting the print-receiving layer is not particularly limited as long as it can exhibit a predetermined adhesion between the print part and the binder resin, and may be either a water-soluble resin or a water-insoluble resin. Examples of the binder resin include acrylic resins such as styrene-butadiene copolymer (styrene-butadiene resin), acrylonitrile-butadiene copolymer, methacrylic acid-butadiene copolymer, polyurethane, and acrylic acid ester copolymer, water-insoluble resins such as polyvinyl acetate, and water-soluble resins such as polyvinyl alcohol and oxidized starch. From the viewpoint of water resistance, the binder resin is preferably a water-insoluble resin. Among them, in consideration of printability, the binder resin constituting the print-receiving layer is preferably at least one of acrylic resin and styrene-butadiene resin, and more preferably styrene-butadiene resin. The glass transition temperature of the styrene-butadiene resin is preferably -50°C or more and 50°C or less, and more preferably -20°C or more and 20°C or less. From the viewpoint of printability, the styrene-butadiene resin (styrene-butadiene copolymer) is preferably a latex type (styrene-butadiene rubber latex). As such a styrene-butadiene rubber latex, a commercially available product may be used, and examples of the commercially available product include Smartex (registered trademark) SN-309R (manufactured by Nippon A&L Co., Ltd.) and Smartex (registered trademark) SN-307R (manufactured by Nippon A&L Co., Ltd.). If necessary, the binder resin may be a crosslinked body crosslinked by an isocyanate-based or epoxy-based crosslinking agent.

The content of the binder resin in the print-receiving layer is, for example, 5 to 30% by mass, and may be 10 to 20% by mass, taking into consideration printability.

In addition to the binder resin, the print-receiving layer may contain fillers such as clays such as kaolin, aluminum hydroxide, calcium carbonate, titanium oxide, and talc, isocyanate-based and epoxy-based crosslinking agents, colorants such as starch oxide, dyes, and pigments, fixing agents, flocculants, defoamers, dispersants, etc., as required.

Among these, it is preferable that the print-receiving layer contains kaolin, since this improves printability. The shape of the kaolin is not particularly limited, but it is preferably flat and plate-like. This can improve the smoothness of the surface of the print-receiving layer, and can improve the printability of the print label. The average particle size of the kaolin is not particularly limited, but is, for example, 0.1 μm or more and 10 μm or less. The average particle size is based on volume, and can be measured by a laser diffraction particle size distribution measuring device. The content of kaolin in the print-receiving layer is, for example, 20 to 90 mass%, or 60 to 90 mass%.

The method for forming the print-receiving layer is not particularly limited. For example, the print-receiving layer can be formed by applying a coating liquid containing the material for the print-receiving layer and, if desired, a solvent or dispersion medium to one side of a paper-based substrate to form a coating film, and then drying the coating film.

The thickness (weight per unit area) of the print-receiving layer is not particularly limited, but in consideration of printability, it is preferably, for example, 3 to 20 g/ ^m2 .

[Paper-based substrate]
Paper-based substrates usually contain pulp as a main component. In this specification, the term "main component" means a component having a concentration of more than 50% by mass. The content of pulp in the paper-based substrate is not particularly limited, but is preferably 60% by mass or more and 99% by mass or less, more preferably 65% by mass or more and 98% by mass or less, and even more preferably 70% by mass or more and 97% by mass or less.

The paper-based substrate is not particularly limited as long as it contains pulp. The pulp is preferably natural pulp. Examples of natural pulp include wood pulp such as softwood pulp and hardwood pulp, and bast fibers such as flax, hemp, paper mulberry, and mitsumata. In particular, the paper-based substrate preferably contains at least softwood bleached kraft pulp and hardwood bleached kraft pulp. By containing softwood bleached kraft pulp, the fibers of the pulp (especially the fibers of softwood bleached kraft pulp) can be efficiently entangled, thereby increasing the strength of the paper-based substrate. In addition, by containing hardwood bleached kraft pulp, the smoothness of the surface can be increased, which greatly contributes to improving printability.

It is preferable that the direction of the long diameter of the pulp fibers in the paper-based substrate roughly coincides with the MD direction of the label, as this makes it easier to obtain the effects of the present invention.

The paper-based substrate preferably also contains a moisture strengthening agent. A moisture strengthening agent is an agent that prevents the paper from losing strength when it becomes wet. When added to pulp fibers that tend to unravel in water, the moisture strengthening agent has the effect of maintaining the bonds of the pulp fibers even when wet, making them less likely to unravel, and increasing their strength. For this reason, the inclusion of a moisture strengthening agent in the paper-based substrate is more effective in maintaining the shape of the POP label (improving its standing ability) under high temperature and high humidity conditions.

Examples of the wetting enhancer include polyamine resin, polyacrylamide (PAM) resin, melamine formaldehyde resin, urea formaldehyde resin, etc. Among them, the wetting enhancer is preferably polyamine resin or polyacrylamide (PAM) resin, and more preferably polyamine resin.

Polyamine resins usually form cross-linked structures between pulps. Note that polyamine resins may form cross-linked structures between themselves, or may form cross-linked structures with resin materials other than polyamine resins contained in the paper-based substrate.

A polyamine resin is a compound that has two or more amino or imino groups in the molecule. Examples of polyamine resins include resins obtained from so-called polyamines and epihalohydrins such as epichlorohydrin, and their derivatives. Such polyamine resins have epoxy groups as reactive groups. Examples of polyamine resins that can be used include those commercially available from Seiko PMC as WS-4011 (polyamine epichlorohydrin resin). Polyamide polyamine epihalo(chloro)hydrin resins can also be used.

As polyacrylamide (PAM), for example, those commercially available as the Polystron series from Arakawa Chemical Industries Co., Ltd. can be used.

The amount of the moisture enhancer contained in the paper substrate is not particularly limited, but considering the manifestation of the effect and the saturation of the effect, it is preferable that the amount is 0.5 to 3.0% by mass relative to the paper substrate.

The paper-based substrate may contain other additives. Examples of other additives include sizing agents such as oxidized starch, rosin-based sizing agents, and AKD (alkyl ketene dimer)-based sizing agents; resin materials other than wet enhancers (e.g., urethane resins, acrylic resins, styrene acrylic resins, polyvinyl alcohol, etc.); colorants such as dyes and pigments; fixing agents; papermaking aids; and flocculants. One or more of these may be used in combination. The above resin materials may function as sizing agents.

[Resin layer]
The resin layer is disposed on the exposed portion, but may be disposed on at least a part of the exposed portion. It is preferably disposed on the entire surface of the exposed portion. Furthermore, the resin layer may be disposed on the exposed portion or on a portion that comes into contact with an article (a portion that is attached to an article).

The resin layer contains a resin. The resin contained in the resin layer is not particularly limited, and may be either a water-soluble resin or a water-insoluble resin. Examples of the resin include water-insoluble resins such as polyester urethane resin, acrylic resin, urethane resin, acrylic urethane resin, styrene resin, styrene-butadiene resin, and polyester resin; and water-soluble resins such as polyvinyl alcohol. From the viewpoint of water resistance, it is preferable that the resin contained in the resin layer is a water-insoluble resin.

Suitable water-insoluble resins include, but are not limited to, styrene-butadiene (styrene-butadiene copolymer) resins, acrylic resins, etc. These may be used alone or in combination of two or more types.

As the water-insoluble resin, commercially available products may be used, such as Smartex (registered trademark) SN-309R (styrene butadiene rubber latex, manufactured by Nippon A&L, glass transition temperature 4°C), Smartex (registered trademark) SN-307R (styrene butadiene rubber latex, manufactured by Nippon A&L, glass transition temperature 10°C), JSR0693 (styrene butadiene rubber latex, manufactured by JSR, glass transition temperature 20°C), and PRIMAL HA-16 (acrylic resin, manufactured by Dow Chemical Japan, glass transition temperature 35°C).

Among them, the resin is preferably a styrene-butadiene resin, since the present effect of suppressing sagging under high temperature and high humidity conditions is more easily achieved. The glass transition temperature of the styrene-butadiene resin is preferably -50°C or higher and 50°C or lower, and more preferably -20°C or higher and 20°C or lower. This allows the styrene-butadiene resin to be suitably melted, making it easier to entangle with the paper-based substrate during application, and more easily achieving the effect of suppressing sagging. In addition, the styrene-butadiene (styrene-butadiene copolymer) resin is preferably a latex type (styrene-butadiene rubber latex), since the effect of the present invention of suppressing elongation on the back surface of the paper substrate is more effectively achieved. As such a styrene-butadiene rubber latex, a commercially available product such as the one described above may be used.

Considering the effect of the present invention (retention of the label shape under high temperature and high humidity conditions), the thickness (weight) of the resin layer is preferably 1 g/ ^m2 or more, and more preferably 2 g/m2 or more. From the viewpoint of the balance with the print receiving layer, the thickness is preferably 20 g/ ^m2 or ^less , and more preferably 30 g/m2 or ^less .

The resin constituting the resin layer is preferably a non-adhesive resin. Non-adhesive resins have a higher glass transition temperature than adhesive resins. The glass transition temperature of the resin constituting the resin layer is, for example, -20°C or higher, -10°C or higher, or -5°C or higher.

The content of the resin in the resin layer is preferably 1 to 10 g/ ^m2 , and more preferably 2 to 6 g/ ^m2 .

The resin layer only needs to contain at least a resin, but may also contain other additives. Examples of additives include fillers (e.g., kaolin, calcium carbonate, talc, clay, titanium oxide, zinc oxide, barium sulfate, etc.), the wet enhancers listed in the paper substrate section above, oxidized starch, colorants such as dyes and pigments, fixing agents, flocculants, defoamers, dispersants, etc.

It is preferable that the resin layer is disposed at least on the exposed portion protruding from the article. More preferably, the resin layer is disposed over the entire label (in the surface direction), as this further enhances the effects of the present invention and simplifies the manufacturing process.

The method for forming the resin layer is not particularly limited, but it is preferable to form it by applying a coating liquid containing a resin and a solvent to the paper-based substrate. That is, in a preferred embodiment of the present invention, the resin layer is formed by applying a coating liquid containing the resin and a solvent to the paper-based substrate. By applying the coating liquid, the paper-based substrate is impregnated with the coating liquid, and the resin can be entangled with the pulp fibers, so that the effect of restraining the surface of the paper-based substrate is more easily exerted. As the coating method, a known method can be used, for example, roll coating, gravure coating, reverse coating, air knife coating, die coating, bar coating, etc. can be used.

The solvent used in the coating liquid is not particularly limited, but in the case of styrene butadiene rubber latex, which is a suitable form of resin, an aqueous solvent is preferable. Aqueous solvents are also preferable from the viewpoint of low environmental impact. As an aqueous solvent, water is preferable. Alternatively, a mixed solvent of water and an organic solvent (e.g., a lower alcohol) that is soluble in water may be used. The solid content concentration in the coating liquid is, for example, 5 to 70% by mass.

The amount of coating is not particularly limited, but taking into consideration the effects of the present invention, it is, for example, 2 g/m ² to 20 g/m ² .

[Adhesive layer]
The adhesive constituting the adhesive layer can be at least one selected from adhesives such as synthetic rubber-based adhesives such as styrene-isoprene-styrene block copolymers and styrene-butadiene-styrene block copolymers, acrylic acid ester copolymers, polyester resin-based adhesives, urethane resin-based adhesives, and ethylene-vinyl acetate copolymers.

The adhesive constituting the adhesive layer is not particularly limited, and examples thereof include solvent-based adhesives, emulsion-based adhesives, and hot-melt adhesives, but an emulsion-based adhesive is preferable. This makes it possible to reduce the amount of organic solvent used in the label manufacturing process while improving the adhesive strength of the label to the substrate and the productivity of the label, thereby reducing the environmental burden. When the adhesive layer is made of a material containing an emulsion-based adhesive, it is particularly preferable that the adhesive layer is made of a material containing an emulsion-based adhesive that has been crosslinked with a crosslinking agent.

The adhesive layer may contain components other than the adhesive (hereinafter also referred to as "other components"). Examples of other components include emulsifiers, tackifiers, plasticizers, etc.

Examples of tackifiers that can be used include rosin-based resins such as rosin, rosin phenolic resins, and their ester compounds, hydrogenated rosin esters, etc.; terpene-based resins such as terpene resins, terpene phenolic resins, and aromatic modified terpene resins; C5 petroleum resins; and C9 petroleum resins.

The thickness of the adhesive is not particularly limited as long as it exhibits adhesive properties, but from the viewpoint of adhesiveness and thin film formation, it is usually 10 to 100 μm, for example.

[Release liner]
The release liner is not particularly limited, but examples thereof include papers such as fine paper, glassine paper, clay-coated paper, and polyethylene-laminated paper; polyester films such as polyethylene terephthalate, polybutylene terephthalate, and polyethylene naphthalate; and plastic films such as polyolefin films such as polypropylene and polyethylene.

The thickness of the release liner is usually about 10 to 400 μm. In addition, a layer of a release agent composed of silicone or the like may be provided on the surface of the release liner to improve the releasability of the adhesive layer. When such a layer is provided, the thickness of the layer is usually about 0.01 to 5 μm.

[Production method]
The printable label can be produced, for example, by the following method.

1. Manufacturing of paper-based substrate First, pulp raw material is beaten in water to produce pulp slurry, to which a wet strengthening agent and, if necessary, other internal additives are added.

Next, the slurry containing the pulp and the wet strengthening agent obtained as described above is made into a paper base material. If necessary, a sizing agent may be applied after the paper is made.

2. Coating the print-receiving layer-forming composition and the resin layer-forming composition on the paper-based substrate The print-receiving layer-forming composition is prepared by mixing a binder resin, an additive such as kaolin as necessary, and a solvent. The solvent is appropriately selected depending on the form of the binder resin. When the binder resin is an emulsion-based resin, the solvent is, for example, water.

Then, the print-receiving layer forming composition is applied to the paper-based substrate obtained as described above, for example, by using an air knife or the like, to form a print-receiving layer. Similarly, the resin layer forming composition is applied to the paper-based substrate on the side opposite to the print-receiving layer forming surface of the paper-based substrate, for example, by using an air knife or the like, to form a resin layer. After applying the print-receiving layer forming composition and the resin layer forming composition, the substrate may be subjected to a drying process. Drying conditions are appropriately set, for example, at 80 to 160°C for 10 to 60 seconds.

The print-receiving layer surface may then be smoothed by supercalendering, if necessary.

3. Formation of Adhesive Layer The method of forming the adhesive layer is not particularly limited, but usually, the adhesive is applied onto a release liner, dried, and then transferred onto the resin layer surface of the laminate formed in 2 above. The application method is not particularly limited, and the adhesive can be applied using a known application device such as a roll coater, knife coater, air knife coater, bar coater, blade coater, slot die coater, lip coater, or gravure coater. Drying conditions are not particularly limited, and the drying is usually performed at 60 to 150° C. for 10 to 60 seconds.

After the adhesive layer is formed, a glue-fixing process may be performed. The glue-fixing process may be performed, for example, by printing varnish at the desired location. The glue-fixing process may be performed simultaneously with or after the printing process for forming the label, rather than being performed on the label to be printed.

<Label>
The second embodiment of the present invention is a label obtained by applying printing to the print label of the first embodiment.

[Printing section]
There is no particular limit to how the printed portion is formed, and it can be formed by, for example, flexographic printing, offset printing, letterpress printing, gravure printing, screen printing, etc., which are suitable for mass production of a certain pattern, etc. On the other hand, the thermal transfer method, inkjet method, electrophotographic (electrostatic) method, etc. are suitable for printing variable information such as a serial number.

The ink used to form the printed portion is not particularly limited, and examples include oil-based ink, water-based ink, photocurable ink (ultraviolet light curable ink, electron beam curable ink), etc.

The printing area may be provided on the entire surface of the print-receiving layer or paper-based substrate, or on only a portion of the surface.

<Items with labels>
A third embodiment of the present invention is a labeled article having an article to which the label of the second embodiment is attached in a protruding state.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-mentioned embodiments and can be modified in various ways within the scope of the claims.

10. Articles,
20 Labelled articles,
100 labels,
101 Printing department,
103 Side to be affixed to the article,
104: exposed portion that protrudes from the article;
105 Label edge,
106 masking layer,
110 Adhesive layer,
120 resin layer,
130 Paper-based substrate,
140 print receiving layer,
150 release liner,
200, 210, 220 Printable labels.

Claims (9)

A print label that is attached to an article in a state where it is exposed to the outside of the article,
A paper-based substrate;
An adhesive layer;
a resin layer disposed adjacent to the surface of the paper-based substrate on the side of the pressure-sensitive adhesive layer and disposed at least on an exposed portion of the article ;
the resin layer is disposed on the entire surface of the paper-based substrate on the side of the pressure-sensitive adhesive layer ,
The resin layer is formed by applying a coating liquid containing a resin and a solvent to a paper-based substrate . The printable label according to claim 1, wherein the resin contained in the resin layer is a water-insoluble resin. The printable label according to claim 1 or 2, wherein a non-adhesive masking layer is disposed on a part of the pressure-sensitive adhesive layer opposite to the side on which the resin layer is provided. The printable label according to any one of claims 1 to 3 , wherein the paper-based substrate comprises a wet strength agent. The printable label according to any one of claims 1 to 4 , further comprising a print-receiving layer having a binder resin on the side of the paper-based substrate opposite to the side on which the pressure-sensitive adhesive layer is provided. The printable label according to claim 5 , wherein the print-receiving layer contains kaolin. The printable label according to any one of claims 1 to 6 , wherein the resin contained in the resin layer is a styrene-butadiene resin. A label, which is printed on the printable label according to any one of claims 1 to 7 . A label according to claim 8 ;
and an article to which the label is affixed in a protruding state.