JP2022147110A - print label - Google Patents

Abstract

To provide a print label which is designed to be pasted on an article while protruding outward therefrom, and capable of keeping its label shape unchanged from the time of pasting even in a high-temperature high-humidity environment.SOLUTION: A print label designed to be pasted on an article while exposing outward is provided, the print label comprising a paper base material, an adhesion layer, and a resin layer disposed abutting a surface of the paper base material on an adhesive layer side and positioned at least in an exposing portion exposing from the article.SELECTED DRAWING: None

Description

The present invention relates to labels for printing.

2. Description of the Related Art Conventionally, labels called POP labels or eye-catching labels (such labels are hereinafter simply referred to as POP labels) that display catchphrases, etc. related to products have been used as effective means for promoting sales of products. . Such labels usually have an adhesive part that can be attached to an article and a non-adhesive part that protrudes from the article. Then, by attaching the adhesive portion to the article, the non-adhesive portion protrudes from the product, and when the product is displayed, it is possible to catch the eye of consumers (see Patent Document 1, for example).

JP 2008-191522 A

By the way, in recent years, in consideration of the environment, the movement to eliminate plastics is accelerating. Resin substrates have been used for such labels from the standpoint of durability, but the use of paper substrates is now being considered in line with the trend toward plastic-free labels.

However, paper substrates have low wet strength and are easily broken when wet with water, so their uses are limited. For example, POP labels are sometimes affixed to containers used in bathrooms, such as shampoo bottles. It is required that the appealing effect of Therefore, even in a high-temperature and high-humidity environment, it is required that the shape of the label when attached is maintained (the standing property is maintained).

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a label for printing that is attached in a state of protruding outward from an article, and that can maintain the shape of the label when attached even in a high-temperature, high-humidity environment. do.

The present invention provides a printing label to be attached to an article in a state of being exposed to the outside of the article, comprising a paper-based substrate, an adhesive layer, and a surface of the paper-based substrate on the adhesive layer side. and a resin layer disposed adjacently and disposed at least on an exposed portion exposed from the article.

According to the present invention, it is possible to provide a label for printing that is attached in a state of protruding outward from an article, and that can maintain the shape of the label when attached even in a high-temperature, high-humidity environment. .

4 is a photograph showing a phenomenon in which a POP label bends toward the printed surface. FIG. 4 is a schematic diagram showing a manufacturing process in which a POP label is attached to an adherend (article) using a labeling machine. 1 is a perspective view showing an embodiment label applied to an item; FIG. FIG. 4 is a side view seen from reference numeral 2 in FIG. 3; 1 is a schematic cross-sectional view of one embodiment of a label for printing; FIG. It is a cross-sectional schematic diagram which shows other one Embodiment of the label for printing. It is a cross-sectional schematic diagram which shows other one Embodiment of the label for printing.

In this specification, "X to Y" indicating a range means "X or more and Y or less". In addition, unless otherwise specified, operations, measurement of physical properties, etc. are performed under the conditions of room temperature (20 to 25° C.)/relative humidity of 45 to 55%. Furthermore, (meth)acrylic acid as used herein means both acrylic acid and methacrylic acid.

A first embodiment of the present invention is a label for printing that is attached to an article in a state of being exposed to the outside of the article, comprising a paper-based substrate, an adhesive layer, and the adhesive of the paper-based substrate and a resin layer disposed adjacent to the layer side surface and disposed at least on an exposed portion exposed from the article.

According to this embodiment, even in a high-temperature and high-humidity environment (for example, 60° C., 95% RH), the shape of the attached label can be maintained, and the label can be attached in a state of protruding outward from the article. can provide printed labels that

POP labels are sometimes attached to containers such as shampoo bottles that are used in bathrooms, and are required to be appealing to consumers even in high-temperature, high-humidity environments. The present inventors have found that under such a high temperature and high humidity environment, as shown in FIG. It is presumed that the phenomenon in which the label bends forward in this manner occurs as follows.

Usually, as shown in FIG. 2, a POP label is manufactured as a roll body and then attached to an adherend by a labeling machine. It is affixed so that it is horizontal when viewed. In addition, many of the pulp fibers of the paper-based substrate are oriented in the flow direction (MD direction) of the roll body in terms of production. When the POP label is placed in a high-temperature and high-humidity environment, the pulp fibers absorb water and the fiber width increases, and the paper-based substrate extends in the width direction (CD direction) (perpendicular to the MD direction). On the other hand, the paper-based substrate on the printing surface (surface) side of the POP label is affected by the resin contained in the printing (ink) and the resin contained in the print-receiving layer. Even when sucked, expansion in the width direction is suppressed to some extent. Therefore, it is considered that the label tends to bend in the width direction. In addition, since the protruding exposed portion of the POP label is not constrained by the adhesive layer, the POP label tends to bend under its own weight. After finding out about these issues, as a result of further investigation, we found that by providing a resin layer, it is possible to suppress the elongation of the back side of the paper-based substrate (the side opposite to the printed side), thereby suppressing the deflection caused by the elongation of the back side. The inventors have found that it is possible to complete the present invention. The resin layer can also be said to be a constraining layer that constrains the elongation of the paper-based substrate.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.

As shown in FIG. 3 , the label 100 of the embodiment is used by being attached to the article 10 . The label 100 is called a POP label or an eye-catching label, and plays a role of attracting consumers' attention when the labeled article 20 having the label 100 attached to the article 10 is displayed in a store.

The article 10 is a product displayed in a store, and includes, for example, cosmetics, medicines, and daily necessities, but the type of product is not particularly limited. Accordingly, the shape of the item 10 shown is exemplary only and may vary depending on the type of item, and may be shaped like a box or bottle, for example.

The label 100 has a printed portion 101 that is attached while protruding from the article 10 and displays information.

The printing unit 101 displays, for example, a slogan describing sales performance, efficacy, etc., as information about the article 10, but the type of information the printing unit 101 displays is not particularly limited. Notifications of new products and the like may be displayed. Further, the information displayed by the printing unit 101 is not limited to letters and numbers, and may be, for example, illustrations, photographs, graphs, or a combination thereof.

As shown in FIG. 4, the label 100 has an adhesive layer 110 having adhesiveness to the article 10, a resin layer 120, a paper base material 130, and a print receiving layer 140. FIG. A label 100 is formed by printing a printing portion 101 on a printing label composed of an adhesive layer 110, a resin layer 120, a paper base material 130, and a print receiving layer 140. FIG.

The exposed portion 104 of the label 100 protruding from the article 10 may have adhesiveness. A non-adhesive masking layer 106 made of, for example, varnish is formed on the label 100, so that the exposed portion 104 protruding from the article 10 has no adhesiveness. Therefore, in this embodiment, only the sticking portion 103 can be attached to the article 10 .

Unlike this, only the sticking part 103 can be attached to the article 10 by forming the adhesive layer 110 only on the sticking part 103 without forming the adhesive layer 110 on the exposed part 104 protruding from the article 10. - 特許庁(See Figure 6).

The adhesive layer 110 has adhesiveness to the article 10 . The pressure-sensitive adhesive layer 110 may have removability so that the label 100 can be peeled off even after being attached to the article 10 . Also, the adhesive layer 110 preferably does not leave adhesive residue on the article 10 after the label 100 is peeled off.

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

Although the size of the label 100 is not particularly limited, it is, for example, 50 mm×50 mm, and the sticking portion is 25 mm×50 mm. Also, the size of the exposed portion is not particularly limited, but considering the attachment to the article, it is, for example, 10 to 90% of the label area, and may be 20 to 80%.

For example, an article to which the label of the present invention is attached is not limited to merchandise, and a label attached to an article other than merchandise to indicate some kind of information is also included in the scope of the present invention.

Also, the shape of the label of the present invention is not particularly limited, and may be other shapes than the rectangular shape of the label 100 of the above embodiment.

FIG. 5 is a schematic cross-sectional view showing one embodiment of a label for printing. The printing label 200 is a label for printing by the printing unit 101 before the label 100 is attached to the article. That is, the printable label is a substrate on which printing is applied. The printing label 200 shown in FIG. 5 is formed by laminating a release liner 150, an adhesive layer 110, a resin layer 120, a paper base material 130, and a print receiving layer 140 in this order. Each layer has substantially the same size in the planar direction. Moreover, 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 having a function of protecting the adhesive layer and preventing deterioration of adhesiveness. Then, the release liner 150 is peeled off from the label when it is attached to the adherend. In the printing label 200 of FIG. 5, the resin layer 120 is arranged on the entire surface of the paper-based base material 130 . Such a form in which the resin layer 120 is arranged on the entire surface of the paper-based base material 130 is preferable because the effect of the present invention of suppressing the elongation of the back surface is further exhibited.

FIG. 6 is a schematic cross-sectional view showing another embodiment of the label for printing. A printing label 210 shown in FIG. 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. FIG. In FIG. 6, an adhesive layer 110 and a resin layer 120 are arranged on a paper base material 130 . The pressure-sensitive adhesive layer 110 is the portion to be attached to the article, and the resin layer 120 is arranged on the exposed portion 104 . In this way, the resin layer 120 may be arranged partially on the paper-based substrate 130 .

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

Each member constituting the printing label will be described below.

[Print Receiving Layer]
As a preferred embodiment, the label for printing further has a print-receiving layer containing a binder resin on the opposite side of the paper-based substrate to the side on which the pressure-sensitive 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, even in a high-temperature and high-humidity environment, the stretching of the paper-based substrate is suppressed, so the length of the back side, which is stretchable, tends to be different, and the label warps. becomes easier to wake up. Therefore, in the form in which the print-receiving layer is provided, the effect of the present invention (suppression of bending) is more likely to be 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 with the printing portion, 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, acrylic acid ester copolymer, and polyacetic acid. water-insoluble resins such as vinyl; 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 an acrylic resin and a styrene-butadiene resin, more preferably a styrene-butadiene resin. The glass transition temperature of the styrene-butadiene resin is preferably -50°C or higher and 50°C or lower, more preferably -20°C or higher and 20°C or lower. Also, the styrene-butadiene resin (styrene-butadiene copolymer) is preferably a latex type (styrene-butadiene rubber latex) from the viewpoint of printability. As such styrene-butadiene rubber latex, commercially available products may be used, and examples of commercially available products include Smartex (registered trademark) SN-309R (manufactured by Nippon A&L Co., Ltd.) and Smartex (registered trademark) SN-307R. (manufactured by Japan A&L Co., Ltd.) and the like. In addition, the binder resin may be a cross-linked product cross-linked with an isocyanate-based or epoxy-based cross-linking agent or the like, if necessary.

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, in consideration of printability.

In addition to the binder resin, if necessary, the print-receiving layer may contain clays such as kaolin, fillers such as aluminum hydroxide, calcium carbonate, titanium oxide and talc, isocyanate-based or epoxy-based cross-linking agents, and oxidizing agents. Coloring agents such as starch, dyes and pigments, fixing agents, flocculating agents, antifoaming agents, dispersing agents and the like can be blended.

Among them, the print-receiving layer preferably contains kaolin because it improves printability. Although the shape of kaolin is not particularly limited, it is preferably in the shape of a flat plate. Thereby, the smoothness of the surface of the print-receiving layer can be improved, and the printability of the label for printing can be improved. Although the average particle size of kaolin is not particularly limited, it 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 with a laser diffraction particle size distribution analyzer. The content of kaolin in the print-receiving layer is, for example, 20 to 90% by mass, preferably 60 to 90% by mass.

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

The thickness (basis weight) of the print-receiving layer is not particularly limited, but is preferably, for example, 3 to 20 g/m ² in consideration of printability.

[Paper base material]
Paper-based substrates usually contain pulp as a main component. As used herein, the term "main component" means a component having a concentration of more than 50% by mass. The pulp content 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 70% by mass or more and 97% by mass. % by mass or less is more preferable.

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, mulberry, and mitsumata. Among them, the paper-based substrate preferably contains at least bleached softwood kraft pulp and bleached hardwood kraft pulp. By including the bleached softwood kraft pulp, the fibers of the pulp (especially the bleached softwood kraft pulp fibers) can be efficiently entangled, and the strength of the paper-based substrate can be increased. In addition, the inclusion of bleached hardwood kraft pulp can improve the smoothness of the surface, which greatly contributes to the improvement of printability.

It is preferable that the direction of the major diameter of the pulp fibers of the paper-based substrate and the MD direction of the label substantially coincide with each other, because the effect of the present invention can be more easily obtained.

The paper-based substrate also preferably contains a wetting enhancer. Wetness enhancer is an agent that suppresses the decrease in paper strength when paper is wet. By adding it to pulp fibers that easily loosen when wet, the bonds of pulp fibers are maintained even when wet. It has the effect of increasing strength by making it difficult to unravel. Therefore, when the paper-based substrate contains a wettability enhancer, it is more effective in retaining the shape of the POP label (improving the standing property) under high-temperature and high-humidity conditions.

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

A polyamine resin usually forms a crosslinked structure between pulps. The polyamine resin may form a crosslinked structure with itself, or may form a crosslinked structure with a resin material other than the polyamine resin contained in the paper base material.

Polyamine resins are compounds having two or more amino groups or imino groups in the molecule, and examples of polyamine resins include resins obtained from so-called polyamines and epihalohydrin such as epichlorohydrin, and derivatives thereof. Such polyamine resins have epoxy groups as reactive groups. As the polyamine resin, those commercially available as WS-4011 (polyamine epichlorohydrin resin) from Seiko PMC can be used. Polyamide polyamine epihalo(chloro)hydrin resins can also be used.

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

The content of the wetness enhancer in the paper-based substrate is not particularly limited, but considering the expression of the effect and the saturation of the effect, it should be 0.5 to 3.0% by mass relative to the paper-based substrate. is preferred.

The paper-based substrate may contain other additives. Other additives include sizing agents such as oxidized starch, rosin-based sizing agents, and AKD (alkylketene dimer)-based sizing agents, resin materials other than wetness enhancers (e.g., urethane resins, acrylic resins, styrene acrylic resins, polyvinyl alcohols, etc.), coloring agents such as dyes and pigments, fixing agents, paper making aids, coagulants, and the like. You may use 1 type(s) selected from these, or in combination of 2 or more types. As the resin material, a material that functions as a sizing agent may be used.

[Resin layer]
The resin layer is arranged on the exposed portion, and may be arranged on at least part of the exposed portion. It is preferably arranged over the entire surface of the exposed portion. In addition to the exposed portion, it may be arranged in a portion that contacts the article (the portion that is attached to the article).

The resin layer contains 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 resins include water-insoluble resins such as polyester urethane resins, acrylic resins, urethane resins, acrylic urethane resins, styrene resins, styrene-butadiene resins, and polyester resins; and water-soluble resins such as polyvinyl alcohol. From the viewpoint of water resistance, the resin contained in the resin layer is preferably a water-insoluble resin.

Suitable water-insoluble resins include, but are not limited to, styrene-butadiene (styrene-butadiene copolymer) resins, acrylic resins, and the like. These may be used individually by 1 type, or may be used together 2 or more types.

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

Among them, the resin is preferably a styrene-butadiene resin, since the effect of the present invention of suppressing deflection under high-temperature and high-humidity conditions is more likely to be obtained. The glass transition temperature of the styrene-butadiene resin is preferably -50°C or higher and 50°C or lower, more preferably -20°C or higher and 20°C or lower. As a result, the styrene-butadiene resin can be suitably melted, which makes it easier to get entangled with the paper-based substrate during coating, making it easier to exhibit the effect of suppressing deflection. In addition, the styrene-butadiene (styrene-butadiene copolymer) resin is preferably a latex type (styrene-butadiene rubber latex) because the effect of the present invention of suppressing elongation of the back surface of the paper substrate is further exhibited. . As such a styrene-butadiene rubber latex, the above-mentioned commercial products may be used.

The thickness (basis weight) of the resin layer is preferably 1 g/m ^{2 or more, more preferably 2 g/m 2 or} more, in consideration of the effects of the present invention (label shape retention under high-temperature and high-humidity conditions). is more preferred. From the viewpoint of balance with the print-receiving layer, it is preferably 20 g/m ² or less, more preferably 30 g/m ² or less.

In addition, it is preferable that the resin constituting the resin layer is a non-adhesive resin. The non-tacky resin has a higher glass transition temperature than the tacky resin. 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 resin content in the resin layer is preferably 1 to 10 g/m ² , more preferably 2 to 6 g/m ² .

The resin layer should contain at least a resin, but may contain other additives. Additives include, for example, fillers (e.g., kaolin, calcium carbonate, talc, clay, titanium oxide, zinc oxide, barium sulfate, etc.), wetting enhancers listed in the paper-based substrate section, oxidized starch, dyes, Examples include coloring agents such as pigments, fixing agents, flocculants, antifoaming agents, and dispersing agents.

It is preferable that the resin layer is arranged at least on the exposed portion protruding from the article. More preferably, the resin layer is arranged on the entire label (in the plane direction) because the effects of the present invention are further exhibited and the manufacturing process is simple.

Although the method for forming the resin layer is not particularly limited, it is preferably formed by applying a coating liquid containing a resin and a solvent to a paper-based substrate. That is, a preferred embodiment of the present invention is formed by applying a coating liquid containing the resin and solvent to a paper-based substrate. By coating, the paper-based substrate is impregnated with the coating liquid, the resin can be entangled with the pulp fibers, and the effect of restraining the surface of the paper-based substrate can be exhibited more easily. As a coating method, a known method can be used, and for example, methods such as roll coating, gravure coating, reverse coating, air knife coating, die coating, and bar coating can be used.

The solvent used in the coating solution is not particularly limited, but in the case of styrene-butadiene rubber latex, which is a preferred form of the resin, an aqueous solvent is preferred. Aqueous solvents are also preferable from the viewpoint of less environmental load. Water is preferred as the aqueous solvent. Alternatively, a mixed solvent of a water-soluble organic solvent (eg, a lower alcohol) and water may be used. The solid content concentration in the coating liquid is, for example, 5 to 70% by mass.

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

[Adhesive layer]
Examples of adhesives constituting the adhesive layer include synthetic rubbers such as styrene-isoprene-styrene block copolymers and styrene-butadiene-styrene block copolymers, acrylic acid ester copolymers, polyester resins, urethane At least one selected from adhesives such as resins and ethylene-vinyl acetate copolymers can be used.

The pressure-sensitive adhesive constituting the pressure-sensitive adhesive layer is not particularly limited, and examples thereof include solvent-based pressure-sensitive adhesives, emulsion-based pressure-sensitive adhesives, hot melt-type pressure-sensitive adhesives, etc., but emulsion-based pressure-sensitive adhesives are preferred. As a result, the adhesive strength of the label to the adherend and the productivity of the label can be improved, while the amount of organic solvent used in the label manufacturing process can be suppressed, and the environmental load can be reduced. . When the pressure-sensitive adhesive layer is composed of a material containing an emulsion-based pressure-sensitive adhesive, it is particularly preferable to be composed of a material containing an emulsion-based pressure-sensitive adhesive that has been subjected to cross-linking treatment with a cross-linking agent.

The pressure-sensitive adhesive layer may contain components other than the pressure-sensitive adhesive (hereinafter also referred to as "other components"). Other components include, for example, emulsifiers, tackifiers, plasticizers, and the like.

Examples of the tackifier include rosin, rosin phenolic resins and their ester compounds, rosin resins such as hydrogenated rosin esters, terpene resins such as terpene resins, terpene phenol resins, aromatic modified terpene resins, and C5 petroleum. Resins, tackifiers such as C9 petroleum resins, and the like can be used.

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

[Release liner]
Examples of the release liner include, but are not limited to, paper such as woodfree paper, glassine paper, clay-coated paper, and polyethylene-laminated paper; polyester films such as polyethylene terephthalate, polybutylene terephthalate, and polyethylene naphthalate; polypropylene and polyethylene; plastic films such as polyolefin films;

The thickness of the release liner is usually about 10-400 μm. A layer made of a release agent made of silicone or the like may be provided on the surface of the release liner to improve the release property of the pressure-sensitive adhesive layer. When such a layer is provided, the thickness of the layer is usually about 0.01 to 5 μm.

[Production method]
A label for printing can be manufactured by the following methods, for example.

1. Manufacture of paper-based substrate First, a pulp raw material is beaten in water to produce a pulp slurry. A wetness enhancer is added to the pulp slurry, and optionally other internal additives are also added.

Next, the slurry containing the pulp and the wettability enhancer obtained as described above is subjected to papermaking to obtain a paper-based base material. In addition, if necessary, a sizing agent may be applied after paper making.

2. Applying the composition for forming the print-receiving layer and the composition for forming the resin layer to the paper-based substrate Prepare the composition for forming the print-receiving layer by mixing the binder resin, additives such as kaolin if necessary, and the solvent. do. The solvent is appropriately selected according to the form of the binder resin. When the binder resin is an emulsion resin, the solvent is, for example, water.

Thereafter, the composition for forming a print-receiving layer is applied to the paper-based substrate obtained as described above by, for example, an air knife to form a print-receiving layer. Similarly, the resin layer-forming composition is applied, for example, by an air knife to the paper-based substrate on the opposite side of the paper-based substrate from which the print-receiving layer is formed, to form a resin layer. After applying the composition for forming a print-receiving layer and the composition for forming a resin layer, a drying step may be performed. The drying conditions are appropriately set, and are, for example, 80 to 160° C. for 10 to 60 seconds.

Thereafter, the print-receiving layer surface may be smoothed by supercalendering, if desired.

3. Formation of pressure-sensitive adhesive layer The method of forming the pressure-sensitive adhesive layer is not particularly limited. is transferred to the resin layer surface of the laminate formed in . The coating method is not particularly limited, and coating can be performed using a known coating device such as a roll coater, knife coater, air knife coater, bar coater, blade coater, slot die coater, lip coater and gravure coater. The drying conditions are not particularly limited, and are usually carried out at 60 to 150° C. for 10 to 60 seconds.

Also, after the adhesive layer is formed, the paste removal treatment may be performed. The desizing process is performed by printing, for example, varnish on desired positions. Further, the desizing process may be performed simultaneously with or after the printing process for forming the label, instead of performing the desizing process on the printing label.

<label>
A second embodiment of the present invention is a label obtained by printing on the printing label of the first embodiment.

[Print section]
The printing part is not particularly limited in how it is formed. For example, it is formed by flexographic printing, offset printing, letterpress printing, gravure printing, screen printing, etc., and these are used to mass-produce a certain pattern. Suitable for On the other hand, a thermal transfer method, an ink jet method, an electrophotographic (electrostatic) method, etc. are suitable for marking variable information such as a serial number.

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

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

<Items with labels>
A third embodiment of the present invention is a labeled article comprising 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-described embodiments, and can be variously modified within the scope of the claims.

10 goods,
20 labeled articles,
100 labels,
101 printing unit,
103 The side attached to the article,
104 The exposed part that is the side 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 Labels for printing.

Claims (10)

A label for printing that is attached to the article in a state of being exposed to the outside from the article,
a paper base material;
an adhesive layer;
a resin layer arranged adjacent to the pressure-sensitive adhesive layer side surface of the paper-based base material and arranged at least on an exposed portion exposed from the article. The label for printing according to claim 1, wherein the resin contained in the resin layer is a water-insoluble resin. The label for printing according to claim 1 or 2, wherein the resin layer is formed by applying a coating liquid containing a resin and a solvent to a paper-based substrate. The label for printing according to any one of claims 1 to 3, wherein the resin layer is arranged on the entire surface of the paper-based substrate. The printable label of any one of claims 1-4, wherein the paper-based substrate comprises a wetting enhancer. The label for printing according to any one of claims 1 to 5, 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. 7. The printable label of Claim 6, wherein the print-receiving layer contains kaolin. The label for printing according to any one of claims 1 to 7, wherein the resin contained in the resin layer is a styrene-butadiene resin. A label obtained by printing on the printing label according to any one of claims 1 to 8. a label according to claim 9;
and an article to which the label is attached in a protruding state.

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