JP6830758B2 - Label base material and adhesive label - Google Patents

Description

The present invention relates to a label base material used for an adhesive label, a wrapping label, a tubular label, and the like.

Conventionally, various labels are attached to adherends such as various containers such as beverage containers and food containers.
Such labels are usually formed using a label substrate such as paper or synthetic resin film. Among these, the synthetic resin film is preferable as a label base material because it can perform a beautiful design print as compared with paper, has excellent mechanical strength, and does not absorb water. On the other hand, paper can make consumers feel warmer than synthetic resin film, and in particular, Japanese paper can give a sense of luxury.
In Patent Document 1, a front pattern printing layer and a back pattern printing layer on which a plurality of fibrous patterns are printed are provided on the front and back surfaces of a transparent film layer made of synthetic resin, and the front pattern printing layer and the back pattern printing layer are provided. Is a label in which a part of a plurality of fibrous patterns is printed so as to intersect each other, a design printing layer is provided on the surface of the front pattern printing layer, and a matte layer is provided on the surface of the design printing layer. Is disclosed.

The label of Patent Document 1 exhibits a preferable appearance having the texture of Japanese paper or cloth while using a synthetic resin film.
However, when a consumer touches the label of Patent Document 1, it can be easily identified as not being paper.
In addition, the label is also required to have excellent design because one purpose of use is to decorate an adherend such as a container.

Japanese Unexamined Patent Publication No. 2005-055777

A first object of the present invention is to provide a label base material and an adhesive label using a synthetic resin film, which can give a paper-like impression to consumers not only visually but also tactilely.
A second object of the present invention is to provide a label base material and an adhesive label having excellent design.

The present inventors have studied diligently to achieve the above object.
Generally, the matte layer contains fine particles such as silica fine particles. The present inventors have found that by forming a matte layer using relatively large fine particles, the large fine particles cause fine irregularities that can be perceived by hand on the surface of the synthetic resin film. However, it has been found that when such large fine particles are used, the matting effect is lowered and the light reflection peculiar to the synthetic resin film cannot be sufficiently prevented. The reason for this is not clear, but it is because large particles reflect a large amount of light incident on it from a certain direction in a specific direction, and the amount of light entering from a specific direction increases to the eyes of the viewer. Conceivable.
Therefore, the present inventors have formed fine irregularities on the surface by using large fine particles to give a rough feeling when touched by hand, and arrange small fine particles on the surface of the large fine particles to emit light. The present invention was completed by coming up with the idea of ensuring a matte appearance by diffusely reflecting the particles.

The first label base material of the present invention is provided on the surface side of the synthetic resin film, the first layer provided on the surface side of the synthetic resin film and containing a plurality of first fine particles, and the surface side of the first layer. and a second layer comprising a plurality of second particulates, said first average particle size of the fine particles much larger than the average particle diameter of the second particles, the second layer, the first fine particles as fine particles Contains only the second fine particles having a smaller average particle size than .
The second label base material of the present invention is provided on the surface side of the synthetic resin film, the first layer provided on the surface side of the synthetic resin film and containing a plurality of first fine particles, and the surface side of the first layer. It has a second layer containing a plurality of second fine particles, the average particle size of the first fine particles is larger than the average particle size of the second fine particles, the synthetic resin film contains a metallic gloss layer, and the surface side. The first layer is not provided on the surface side of the region where the metallic luster of the metallic gloss layer can be visually recognized when viewed from the above, and the second layer is provided. Has been done.

In the preferred label substrate of the present invention, the average particle size of the first fine particles is 1.5 to 10 times the average particle size of the second fine particles.
A preferable label base material of the present invention includes a first binder resin layer in which the first layer is provided on the surface side of the synthetic resin film, and the plurality of first fine particles adhered to the first binder resin layer. , And some or all of the plurality of first fine particles are fixed in a state of protruding from the surface of the first binder resin layer.
The preferable label base material of the present invention has a second binder resin layer provided on the surface side of the first layer and a plurality of second fine particles fixed to the second binder resin layer. However, some of the second fine particles are fixed in a state of protruding from the surface of the second binder resin layer.

According to another aspect of the invention, an adhesive label is provided.
This pressure-sensitive adhesive label has any of the above-mentioned label base materials and a pressure-sensitive adhesive layer laminated on the back surface of the label base material.

Although the label base material of the present invention is a base material mainly using a synthetic resin film, it can give consumers a paper-like impression visually and tactilely.
Further, the label base material of the present invention can express various designs and can be suitably used as a label for decoration purposes.

The plan view of the label base material which concerns on 1st example of this invention. The plan view of the label base material which concerns on 2nd example of this invention. A partially omitted plan view of the label base material according to the third example of the present invention. A partially omitted plan view of the label base material according to the fourth example of the present invention. A partially omitted plan view of the label base material according to the fifth example of the present invention. A partially omitted plan view of the label base material according to the sixth example of the present invention. A reference end face view showing an end face cut along the line VII-VII of FIG. A reference end face view showing an end face cut along the line VIII-VIII of FIG. An enlarged cross-sectional view showing one example of the laminated portion of the first layer and the second layer. However, the first fine particles and the second fine particles are not represented by a cross section (the same applies to FIG. 10). An enlarged cross-sectional view showing another example of the laminated portion of the first layer and the second layer. An enlarged reference plan view showing examples of various plan views of the first layer. Top view of the adhesive label of the present invention. A reference end face view showing an end face cut along the line XIII-XIII of FIG.

Hereinafter, the present invention will be described with reference to the drawings.
In the present specification, the front surface side refers to the side where the viewer sees the design or the like with reference to the label base material or the label, and the back surface side refers to the opposite surface side thereof. The horizontal direction refers to one direction in the plane of the label base material, and the vertical direction refers to a direction orthogonal to the horizontal direction in the plane. In the plan view, the horizontal direction is the horizontal direction of the paper surface. "1st" and "2nd" may be added to the beginning of a term, but this 1st etc. is added only to distinguish the term and has a special meaning such as superiority or inferiority. Absent. The plan view shape refers to the outer shape when viewed from the vertical direction with respect to the surface of the label base material. The description "PPP to QQQ" means "PPP or more and QQQ or less".
It should be noted that the dimensions such as the thickness of the components and the ratio between the components in each figure are different from the actual ones.

[Form of label base material]
1 to 6 show various forms of label substrate.
In FIGS. 1 to 6, in order to make the explanation easy to understand, innumerable dots are attached to the area where the first layer is provided, and the area where the second layer is provided is shaded. Also, it should be noted that although the smiley mark indicates that the design has been applied, the design is not applied only to the part of this mark. Further, as will be described later, it is preferable that the second layer is not provided in a solid shape in the shaded area, and is usually provided regularly or randomly in the area.

The label base material 1a shown in FIG. 1 is formed in a size and shape that can be used as one label. The label base material 1a is provided with a design unit constituting one label and has a single-wafer shape. Hereinafter, such a label base material may be referred to as a “unit base material”. One label can be formed by, for example, providing an adhesive layer on the back surface of the unit base material.

In the label base material 1a shown in FIG. 1, at least one edge X1 of the region provided with the first layer is located inside the edge Z1 of the synthetic resin film, and the second layer is provided with the first layer. It has a portion extending beyond the edge X1 of the formed region to the edge Z1 of the synthetic resin film. Specifically, all of the edges X1 of the region provided with the first layer are located inside the edge Z1 of the synthetic resin film. The second layer extends beyond all of the edges X1 of the region where the first layer is provided to the edge Z1 of the synthetic resin film.
Since at least one edge X1 of the region provided with the first layer is located inside the edge Z1 of the synthetic resin film, it is possible to prevent the first layer from peeling off from the edge X1 and falling off. In particular, since the second layer is provided beyond the edge X1 of the region where the first layer is provided, it is possible to reliably prevent the first layer from falling off. Further, since the second layer extends beyond the edge X1 of the region where the first layer is provided to the edge Z1 of the synthetic resin film, the entire label base material 1a is visually like paper. Can make an impression.
Although not particularly shown, at least one edge of the region provided with the first layer may be located at the edge of the synthetic resin film, or the edge of the region provided with the second layer is the first. It may overlap the edge of the area where the first layer is provided, or it may be located inside the edge of the area where the first layer is provided.

By providing the adhesive on the back surface of the label base material 1a of FIG. 1, the label base material 1a can be used as an adhesive label or the like. Further, by forming the label base material 1a of FIG. 1 in a tubular shape, the label base material 1a can be used as a tubular label. Further, the label base material 1a is wound by applying an adhesive or the like to the back surface of the label base material 1a of FIG. 1 or to the adherend and attaching the label base material 1a so as to be wound around the adherend. Can be used as a label.

The label base material 1b shown in FIG. 2 is also a unit base material, but is different from the label base material 1a shown in FIG. 1 in that it does not have the first layer and the second layer in a part or all of the film edge portion. It's different. In the illustrated example, the film edge portion 21 on one side in the horizontal direction does not have the first layer and the second layer, and the film edge portion 22 on the opposite side in the horizontal direction and the film edge portions 23 and 24 on both sides in the vertical direction have the first layer and the second layer. It does not have one layer and has a second layer. In places where the first layer and the second layer are not provided, the surface of the synthetic resin film or the surface of the underprinting layer is exposed. The width of the portion of the film edge 21 that does not have the first layer and the second layer is not particularly limited, and is, for example, 1 mm to 10 mm. In the label base material 1b of FIG. 2, the second layer extends beyond the edge X1 of the region where the first layer is provided to the vicinity of the edge Z1 of the synthetic resin film.

Similarly, the label base material 1b of FIG. 2 can be used as an adhesive label, a tubular label, a wrapping label, or the like. In particular, the label base material 1b whose surface of the synthetic resin film is exposed at the film edge 21 on one side in the lateral direction can be suitably used as a tubular label. In a tubular label, the label base material is usually rolled so that the lateral direction of the label base material is the circumferential direction, and the back surface of the film edge portion 22 on the opposite side is overlapped with the front surface of the film edge portion 21 on one side in the lateral direction. Although it is obtained by forming a seal portion by bonding with each other, the seal portion can be firmly adhered because the surface of the synthetic resin film is exposed at the film edge portion 21 on one side in the lateral direction.
Although not particularly shown, a label base material that does not have the first layer and the second layer may be used at the film edges on both sides in the horizontal direction, or the film edges on both sides in the horizontal direction and the film edge on one side in the vertical direction. In the part, a label base material having no first layer and a second layer may be used. Further, the edges of the first layer and the second layer may overlap at the film edge portion 21 on one side in the lateral direction.

The single-wafer label base materials 1a and 1b shown in FIGS. 1 and 2 have a substantially quadrangular shape in a plan view. Examples of the quadrangular shape include a rectangular shape, a square shape, a parallel quadrilateral shape, and a trapezoidal shape. However, the plan view shape of the single-wafer label base materials 1a and 1b is not limited to a substantially quadrangular shape, for example, a substantially circular shape (a substantially circular shape includes a substantially elliptical shape), a substantially triangular shape, and a substantially hexagonal shape. It may be a substantially polygonal shape such as, a substantially star shape, or any other shape. In the present invention, the "abbreviation" of the plan view shape means a shape permitted in the technical field to which the present invention belongs. The "abbreviation" of a substantially polygonal shape such as a substantially square shape in a plan view or a substantially star shape is, for example, a shape in which corners are chamfered, a shape in which a part of a side is slightly bulged or recessed, or a shape in which a side is slightly curved. The shape of the shape is included. Further, the "abbreviation" of the substantially circular shape in the plan view includes, for example, a shape in which a part of the circumference is slightly bulged or recessed, a shape in which a part of the circumference is slightly straight or diagonal, and the like.

The label base materials 1c and 1d shown in FIGS. 3 and 4 have one design unit repeatedly applied in the vertical direction. Conceptually, such label base materials 1c and 1d are long units in which a plurality of unit base materials are continuously connected in the vertical direction. The elongated shape refers to a substantially rectangular shape whose length in the longitudinal direction is sufficiently longer than that in the lateral direction. For example, the length in the longitudinal direction is 5 times or more, preferably 10 times the length in the lateral direction. That is all. The long label base material is wound up in a roll shape and stored / transported as needed.
The label base material 1c shown in FIG. 3 is conceptually formed by continuously connecting the unit base materials of FIG. 1 in the vertical direction, and is cut in the horizontal direction at the position indicated by the arrow S1 shown in FIG. As a result, the single-wafer, substantially square-shaped label base material 1a shown in FIG. 1 is obtained. The label base material 1d shown in FIG. 4 is conceptually formed by continuously connecting the unit base materials of FIG. 2 in the vertical direction, and is cut in the horizontal direction at the position indicated by the arrow S2 shown in FIG. As a result, the single-wafer, substantially square-shaped label base material 1b shown in FIG. 2 is obtained.
The label base material having a substantially circular shape in a plan view of a single leaf can be obtained by punching a long label base material as shown in FIG. 3 or 4 into a substantially circular shape.

The label base material shown in FIG. 5 has one design unit repeatedly applied in the vertical direction and the horizontal direction. Conceptually, such a label base material has a long shape in which unit base materials are continuously connected in each of the vertical direction and the horizontal direction.
The label base material 1e shown in FIG. 5 is conceptually formed by continuously connecting the label base materials 1c and 1d of FIG. 3 or 4 in the lateral direction. By cutting in the vertical direction at the points of arrows S3 to S6 shown in FIG. 5, two label base materials 1c shown in FIG. 3 are obtained, and cutting in the vertical direction at the points of arrows S4, S7 and S6. As a result, two label base materials 1d shown in FIG. 4 are obtained. In places such as the arrow S1 that do not have the first layer, the label base material can be easily cut.
Although FIG. 5 shows the label base material 1e in which one design unit is arranged in two rows in the horizontal direction, three or more rows may be arranged in the horizontal direction.

Further, the long label base material may be a label base material 1f in which one design unit is repeatedly applied in a plurality of lateral directions as shown in FIG. The label base material 1f is also conceptually long in that the unit base materials are continuously connected in the lateral direction. In the example shown in FIG. 6, the unit base material (label base material 1a) of FIG. 1 is continuously connected in the horizontal direction. Although not particularly shown, the unit base material (label base material 1b) shown in FIG. 2 may be continuously connected in the horizontal direction. Further, the label base material 1f shown in FIG. 6 may be connected in a plurality of rows in the vertical direction.

The lengths of the label substrates 1c, 1d, 1e, and 1f shown in FIGS. 3 to 6 in the vertical direction are not particularly limited, and are, for example, 5 m or more, preferably 10 m or more.
Further, in each of the label base materials 1a, 1b, 1c, 1d, 1e, and 1f, the region provided with the first layer is 60% of the surface of the label base material in order to exert a paper-like effect by touch and sight. The above is preferable, and more preferably 70% or more.

[Layer structure of label base material]
As shown in FIGS. 7 and 8, the label base materials 1a and 1b include a synthetic resin film 2, a first layer 3 containing a plurality of first fine particles provided on the surface side of the synthetic resin film 2, and the above. It has a second layer 4 containing a plurality of second fine particles provided on the surface side of the first fine particles. The average particle size of the first fine particles is larger than the average particle size of the second fine particles.
Preferably, the label base materials 1a and 1b further have at least one selected from the metallic luster layer 5, the base printing layer 6 and the design printing layer 7, and more preferably all of them.
The label base material of the present invention may have any other functional layer as long as the effects of the present invention are not impaired.
As described above, the label base material 1b shown in FIG. 8 does not have the first layer 3 and the second layer 4 at the film edge 21 on one side in the lateral direction, and the surface of the synthetic resin film 2 is exposed. It is the same as the label base material 1a of FIG. 7 except that. Therefore, the relationship with FIGS. 7 and 8 will be described below with reference to FIG. 7, and is the same as the component of the label base material 1b of FIG. 8 corresponding to the component of the label base material 1a of FIG. It is labeled.

<Synthetic resin film>
The synthetic resin film 2 is a flexible sheet material containing a synthetic resin as a main component.
The synthetic resin constituting the synthetic resin film 2 is not particularly limited, and for example, a styrene resin such as polystyrene; a polyester resin such as polyethylene terephthalate and polylactic acid; an olefin resin such as polypropylene and a cyclic olefin; a polycarbonate resin; Examples thereof include one type alone selected from thermoplastic resins such as vinyl chloride resin, or a mixture of two or more types. The synthetic resin film 2 may be a one-layer structure film or a laminated film having two or more layers. As the synthetic resin film 2, a uniaxially stretched film or a biaxially stretched film is usually used.

Further, the synthetic resin film 2 may be a film having substantially no heat shrinkage and self-stretchability, and may be a film having heat shrinkage and / or self-stretchability. Heat shrinkability refers to the property of shrinking at least in the main stretching direction when heated to a heat shrink temperature (for example, 70 ° C to 100 ° C). Self-stretching refers to the property of stretching when a tensile force is applied in one direction and restoring to approximately the original length when the tensile force is released.
The synthetic resin film 2 of the label base material used as the adhesive label is preferably a film having substantially no heat shrinkage and self-stretchability. The synthetic resin film 2 of the label base material used as the tubular label is preferably a film having heat shrinkage and / or self-stretchability.

The synthetic resin film 2 may be transparent or opaque. Examples of the opaque synthetic resin film 2 include synthetic paper, a film formed from a resin material containing a colorant, and a foamed resin film. Preferably, a transparent synthetic resin film 2 is used.
In the present specification, transparent means a state in which characters existing on the back surface side of a certain layer or part can be visually recognized from the front surface side, and may be either colorless transparent or colored transparent. In the present specification, opacity means a state in which characters existing on the back surface side of a certain layer or portion cannot be visually recognized from the front surface side.
For example, the total light transmittance of the transparent synthetic resin film 2 is 70% or more, preferably 80% or more, and more preferably 90% or more. The total light transmittance of the synthetic resin film 2 refers to a value measured by a measurement method based on JIS K 7361 (test method for total light transmittance of plastic-transparent material).
The thickness of the synthetic resin film 2 is not particularly limited, but is, for example, 20 μm to 200 μm, preferably 20 μm to 100 μm.

<Metallic luster layer>
The metallic luster layer 5 is provided on the back surface or the front surface of the synthetic resin film 2 as needed.
The metallic luster layer 5 is a layer exhibiting a metallic luster. Examples of the metal gloss layer 5 include a metal vapor deposition layer such as aluminum, a metal foil, and a metal gloss printing layer formed by a known printing method using a printing ink containing metal gloss particles such as aluminum particles. For example, the metallic luster layer 5 exhibits a silver color.
The thickness of the metallic luster layer 5 is not particularly limited, and is, for example, 5 nm to 1 μm in the case of a metal vapor deposition layer, and is, for example, 1 μm to 100 μm in the case of a metal foil, and is in the case of a metallic luster print layer. For example, 1 μm to 10 μm.
The metallic luster layer 5 may be laminated over the entire back surface side or front surface side (that is, the entire surface) of the synthetic resin film 2, or may be laminated over the entire remaining portion except for a part. Good. The metallic luster layer 5 is usually provided in a solid shape. In the present specification, when a certain layer or part is solid, it means that the materials constituting the layer or part extend in the plane direction to form one continuous layer.
In the illustrated example, the metallic luster layer 5 is solidly laminated on the entire back surface of the synthetic resin film 2. When the metallic luster layer 5 is provided on the back surface of the synthetic resin film 2, a transparent synthetic resin film 2 is used so that the metallic luster can be visually recognized from the front surface side.
When the metallic luster layer 5 is provided on the surface of the synthetic resin film 2 (not shown), the synthetic resin film 2 may be transparent or opaque.

<Base print layer>
Like the design print layer 7, the base print layer 6 is provided mainly for the purpose of decoration.
The base print layer 6 is composed of a colored transparent or opaque unpatterned one-color layer, preferably an opaque unpatterned one-color layer. The base print layer 6 can be formed by a known printing method using a conventionally known printing ink.
The color of the base print layer 6 is not particularly limited, and may be white, yellow, red, blue, or the like. Preferably, the base print layer 6 is a layer that has no pattern and exhibits white color. By providing the white base print layer 6, the visible portion of the base print layer 6 becomes white, so that the label base material 1a has an appearance similar to that of paper. The base printing layer 6 exhibiting such white color can be formed by a printing method such as a flexographic printing method using, for example, a printing ink containing a white pigment such as titanium oxide.

The base print layer 6 is provided on the back surface side or the front surface side of the synthetic resin film 2 as needed. When the metallic luster layer 5 is provided, the base print layer 6 is provided on the surface side of the metallic luster layer 5 so that the color of the base print layer 6 is not hidden by the metallic luster layer 5. For example, when the metallic luster layer 5 is provided on the back surface side of the synthetic resin film 2, (1) the base print layer 6 is provided on the front surface of the synthetic resin film 2 as shown in the figure, or (2). A base printing layer 6 is provided on the back surface of the synthetic resin film 2, and a metallic luster layer 5 is provided on the back surface of the base printing layer 6 (not shown). When the metallic luster layer 5 is provided on the surface side of the synthetic resin film 2, the base print layer 6 is provided on the surface side of the metallic luster layer 5 (not shown).

The base print layer 6 may be laminated over the entire front surface side or back surface side (that is, the entire surface surface) of the synthetic resin film 2, or may be laminated over the entire remaining portion excluding a part. Good. The base print layer 6 is usually provided in a solid shape.
In the illustrated example, the base print layer 6 is provided except for a part of the surface of the synthetic resin film 2. Specifically, as shown in FIG. 7, the base print layer 6 is provided in a solid shape except for two portions in the plane of the film. In the example shown in FIG. 8, the base print layer 6 is provided in a solid shape except for the film edge portion 21 on one side in the horizontal direction and two portions in the surface of the film. The base print layer 6 may not be provided on the film edges on the opposite side in the horizontal direction or on both sides in the horizontal direction, or the base print layer 6 may be provided on the film edges on one side in the vertical direction or on both sides in the vertical direction. It may not be provided in one place in the plane of the film, or may not be provided in three or more independent parts. The base print layer 6 is provided at an appropriate portion in consideration of design.
The thickness of the base print layer 6 is not particularly limited, and is, for example, 1 μm to 5 μm.

<Design print layer>
The design print layer 7 is provided mainly for the purpose of decoration.
The design print layer 7 is composed of a colored transparent or opaque one-color or multi-color layer representing characters, patterns, and the like. The design print layer 7 can be formed by a known printing method using a conventionally known color printing ink.
The color of the design print layer 7 is not particularly limited, and is arbitrary such as black, gray, white, yellow, red, and blue. In particular, by laminating the design print layer 7 on the base print layer 6, the characters and the like of the design print layer 7 stand out clearly when viewed from the surface side.
The design print layer 7 is provided on the front surface side or the back surface side of the synthetic resin film 2 as needed. When the metallic luster layer 5 and / or the base print layer 6 is provided, the design print layer 7 is provided so that the colors of the design print layer 7 are not hidden by the metallic luster layer 5 and / or the base print layer 6. It is provided on the surface side of the metallic luster layer 5 and / or the base print layer 6.

The design print layer 7 may be laminated over the entire front surface side or back surface side (that is, the entire surface surface) of the synthetic resin film 2, or may be laminated over the entire remaining portion excluding a part. Good.
In the illustrated example, the design print layer 7 is provided except for a part of the surface of the synthetic resin film 2. Specifically, as shown in FIG. 7, the design print layer 7 is provided in a solid shape except for the film edges on both sides in the lateral direction and two portions in the plane of the film. The design print layer 7 may not be provided at the film edges on both sides in the vertical direction, and may not be provided at one place in the plane of the film or at three or more independent parts. Good. The design print layer 7 is provided at an appropriate portion in consideration of designability.
The thickness of the design print layer 7 is not particularly limited, and is, for example, 1 μm to 5 μm.

<First layer>
As shown in FIG. 9, the first layer 3 contains a plurality of first fine particles 31. The first fine particles 31 have a function of giving a paper-like impression to consumers mainly through the sense of touch. The first layer 3 is provided on the surface side of the synthetic resin film 2. The first layer 3 may be provided directly on the surface of the synthetic resin film 2, or may be provided on the surface of an arbitrary layer such as the design printing layer 7 provided on the surface of the synthetic resin film 2. Good.
The plurality of first fine particles 31 are dispersed and fixed on the surface side of the synthetic resin film 2 via the first binder resin layer 32.

Specifically, the first layer 3 comprises a first binder resin layer 32 provided on the surface side of the synthetic resin film 2 and the plurality of first fine particles 31 fixed to the first binder resin layer 32. Have.
The first layer 3 may be laminated over the entire surface side of the synthetic resin film 2 (that is, the entire surface), or may be laminated over the entire remaining portion excluding a part.

In the illustrated example, the first layer 3 is provided except for a part of the surface of the synthetic resin film 2. Specifically, as shown in FIG. 7, the first layer 3 is provided in a region excluding the film edges on both sides in the lateral direction and two portions in the plane of the film. The first layer 3 may not be provided at one place in the plane of the film or at three or more independent parts.
All of the edges X1 of the region where the first layer 3 is provided are located inside the edge Z1 of the synthetic resin film 2 (see FIGS. 1 and 2).
The first layer 3 may be provided in a solid shape in the region, but is preferably provided scattered in the region. That is, single fibers are randomly expressed on the surface of paper (particularly Japanese paper), and the first layer 3 is placed in the surface side of the synthetic resin film 2 in order to give a feeling of touch to the surface of the paper. It is preferable that they are scattered.

For example, FIGS. 11A to 11D are enlarged reference plan views showing the formation pattern of the first layer when the surface side of the label base material 1a is viewed. In order to make it easy to see the portion where the first layer is provided, innumerable dots are added to the first layer for convenience.
As shown in FIG. 3A, the first layers 3 having an indeterminate plan view may be randomly scattered, and although not particularly shown, a plan view indefinite shape (for example, a substantially circular shape) may be provided. The first layer 3 may be randomly or regularly scattered. Further, as shown in FIG. 3B, a plurality of first layers 3 extending in a substantially strip shape in the vertical direction may be provided side by side at equal intervals or unequal intervals, in particular. Although not shown, a plurality of first layers 3 extending in a substantially strip shape in a plan view in the horizontal direction (or diagonal direction) may be provided side by side at equal intervals or at irregular intervals in the vertical direction. Further, as shown in FIG. 3C, a plurality of first layers 3 extending in a substantially wavy plan view in the vertical direction may be provided side by side at equal intervals or at irregular intervals, and in particular. Although not shown, a plurality of first layers 3 extending in a substantially wavy plan view in the horizontal direction (or diagonal direction) may be provided side by side at equal intervals or at irregular intervals in the vertical direction. Further, as shown in FIG. 3D, the first layer 3 may have a substantially grid shape in a plan view.
In FIG. 3B, both edges of the substantially band-shaped first layer 3 are formed in an uneven shape, but the edges may be linear, and in FIG. 3C, the edges are substantially wavy. Both edges of the first layer 3 of the above are formed in a beautiful curved shape, but the edges may be curved with irregularities, and in the figure (d), both edges of the first layer 3 having a substantially lattice shape. Is formed in a straight line, but this edge may be formed in an uneven shape.

The first fine particles 31 may be organic fine particles or inorganic fine particles as long as they are transparent fine particles, or may be both organic fine particles and inorganic fine particles. Examples of the organic fine particles include resin beads and the like. As the material of the resin beads, acrylic resin, urethane resin, melamine resin, epoxy resin, polyethylene resin, styrene resin, polypropylene resin, polyester resin, cellulose resin, vinyl chloride resin, polyacrylic Examples thereof include nitrile-based resins and polyamide-based resins, and acrylic-based resins and urethane-based resins are preferably used. Examples of the inorganic fine particles include silica (SiO ₂ ). In particular, it is preferable to use urethane-based resin beads as the first fine particles 31 because they are excellent in flexibility and can impart a soft texture.

The shape of the first fine particles 31 is not particularly limited, and examples thereof include a substantially spherical shape (the substantially spherical shape includes a substantially elliptical spherical shape), an arbitrary fixed shape or an irregular shape other than the substantially spherical shape. As the first fine particles 31, it is preferable to use substantially spherical ones. For example, the resin beads are usually substantially spherical transparent bodies. The substantially spherical shape includes a spherical shape and an elliptical spherical shape which are partially recessed, a spherical shape and an elliptical spherical shape which are partially flat surfaces, and the like. The major axis and the minor axis of the substantially spherical shape are not particularly limited. For example, in the substantially spherical shape, the relationship between the major axis and the minor axis when viewed from two orthogonal directions is 1 ≤ major axis / minor axis <3, preferably 1 ≤ major axis / minor axis ≤ 2. More preferably, one having 1 ≦ major diameter / minor diameter ≦ 1.5 is included. In the perfect circular shape, there is no distinction between a major axis and a minor axis, and the major axis / minor axis (diameter / diameter) = 1.

The first fine particles 31 have a larger average particle size than the second fine particles contained in the second layer 4 described later.
For example, the average particle size of the first fine particles 31 is 1.5 to 10 times, preferably 1.5 to 7 times, more preferably 1 times the average particle size of the second fine particles. .5 to 5 times.
When the average particle size of the first fine particles 31 is less than 1.5 times the average particle size of the second fine particles, the difference in particle size between the first fine particles 31 and the second fine particles is small, and light reflection by the first fine particles 31 May not be diffused by the second fine particles, and if it exceeds 10 times the above, the surface of the first fine particles 31 cannot be covered well with the second fine particles, and the light reflection by the first fine particles 31 is diffused by the second fine particles. It may not be possible.

The average particle size of the first fine particles 31 is, for example, the average particle size of the second fine particles + 5 μm to the average particle size of the second fine particles + 20 μm, preferably the average particle size of the second fine particles + 7 μm to the second fine particles. The average particle size is +15 μm.
As a concrete numerical value, the average particle size of the first fine particles 31 is, for example, 10 μm to 30 μm, preferably 12 μm to 25 μm.
The average particle size of the first fine particles is the number average diameter, which means the arithmetic mean diameter on the number basis. The average particle size of the first fine particles can be determined by measuring the diameter of the first fine particles arbitrarily extracted (biaxial average diameter when the fine particles are not spherical) by image analysis using a microscope.

The first binder resin layer 32 may be transparent or opaque. When the design printing layer 7, the base printing layer 6, the metallic luster layer 5, and the like are provided on the back surface side of the first binder resin layer 32, the first binder is provided so that the colors of these layers can be visually recognized from the front surface side. The resin layer 32 is preferably transparent.
Examples of the resin component constituting the first binder resin layer 32 include urethane-based resin, acrylic-based resin, vinyl chloride-based resin, polyvinyl acetate-based resin, polyamide-based resin, polyester-based resin, and cellulose-based resin. Be done. These resin components are usually colorless and transparent.

The thickness of the first binder resin layer 32 is not particularly limited and may be the same as or smaller than or larger than the average particle size of the first fine particles 31. For example, the thickness of the first binder resin layer 32 is 2 μm to 30 μm, preferably 5 μm to 25 μm.
For example, in the example shown in FIG. 9, the thickness of the first binder resin layer 32 is larger than the average particle size of the first fine particles 31. By making the thickness of the first binder resin layer 32 larger than the average particle size of the first fine particles 31, it is possible to prevent the first fine particles 31 from falling off, the protruding state of the first fine particles 31 becomes random, and tactilely the paper It can give a feeling like that.
Further, in the example shown in FIG. 10, the thickness of the first binder resin layer 32 is smaller than the average particle size of the first fine particles 31.
In FIG. 9, some of the plurality of first fine particles 31 are fixed in a state of protruding from the surface of the first binder resin layer 32. Further, the remaining first fine particles 31 are fixed in a state of being buried in the first binder resin layer 32.
In FIG. 10, all of the plurality of first fine particles 31 are fixed in a state of protruding from the surface of the first binder resin layer 32.

The lower portion of the first fine particles 31 protruding from the surface of the first binder resin layer 32 is buried in the first binder resin layer 32 and fixed. It is preferable that about 1/5 to 2/3 of the surface area of the first fine particles 31 protrudes from the surface of the first binder resin layer 32. It should be noted that the resin component constituting the first binder resin layer 32 may be formed into a film and adhere to the surface of the protruding portion of the first fine particles 31.

The number of the first fine particles 31 is not particularly limited, but if it is too small, the fine irregularities due to the first fine particles 31 are reduced, and if it is too large, the adjacent first fine particles 31 become too dense and fine irregularities are generated. It becomes difficult, and it becomes difficult to apply it as an ink described later.

The first layer 3 can be formed by applying a coating liquid containing a plurality of first fine particles 31 and a resin component to a desired plan view shape and solidifying the coating liquid. As the coating liquid, for example, a printing ink in which a plurality of first fine particles 31 are dispersed in an ink containing no colorant (so-called medium ink) can be used. As such a printing ink, for example, when the whole is 100% by mass, the first fine particles 31 are 5% by mass to 80% by mass, preferably 7% by mass to 60% by mass, and more preferably 10% by mass to 10% by mass. Examples include medium ink containing 40% by mass. As the printing ink, conventionally known ones such as an ultraviolet curable type and a solvent volatile type can be used.
The first layer 3 can be formed by printing the printing ink containing the first fine particles 31 in a desired plan-view shape by a known printing method such as a silk screen printing method and solidifying the ink.

<2nd layer>
As shown in FIG. 9, the second layer 4 contains a plurality of second fine particles 41, and the second fine particles 41 give the consumer a paper-like impression mainly through visual perception. The second layer 4 is provided on the surface side of the first layer 3.
The plurality of second fine particles 41 are dispersed and fixed on the surface of the first layer 3 via the second binder resin layer 42.

Specifically, the second layer 4 comprises a second binder resin layer 42 provided on the surface side of the first layer 3 and the plurality of second fine particles 41 fixed to the second binder resin layer 42. Have.
The second layer 4 may be laminated so as to overlap the surface of the first layer 3, for example, may be laminated only on the surface of the first layer 3, or on the surface side of the synthetic resin film 2. It may be laminated over the entire surface (that is, the entire surface), or may be laminated over the entire remaining portion excluding a part on the surface side of the synthetic resin film 2.
Preferably, the second layer 4 is provided in a solid shape.

In the example shown in FIG. 7, the second layer 4 is provided on the entire surface side of the synthetic resin film 2 including the surface of the first layer 3. That is, as shown in FIG. 1, the second layer 4 extends from the surface of the first layer 3 to the edge Z1 of the synthetic resin film 2 beyond the edge X1 of the region where the first layer 3 is provided. ing.
Further, in the example shown in FIG. 8, the second layer 4 is provided except for a part of the surface side of the synthetic resin film 2 including the surface of the first layer 3. Specifically, as shown in FIG. 8, the second layer 4 is provided in a region excluding the film edge portion 21 in the lateral direction. The second layer 4 may not be provided at the film edges on both sides in the vertical direction, or may not be provided at at least one portion in the plane of the film. As shown in FIG. 2, the second layer 4 extends from the surface of the first layer 3 beyond the edge X1 of the region where the first layer 3 is provided to the vicinity of the edge Z1 of the synthetic resin film 2. Has a part that is

The second fine particles 41 may be organic fine particles or inorganic fine particles, or may be both organic fine particles and inorganic fine particles, as long as they are transparent fine particles and have an average particle size smaller than that of the first fine particles 31. Examples of the organic fine particles include the above-mentioned resin beads. Examples of the inorganic fine particles include silica (SiO ₂ ).
The shape of the second fine particles 41 is not particularly limited, and examples thereof include a substantially spherical shape (the substantially spherical shape includes a substantially elliptical spherical shape), an arbitrary fixed shape or an irregular shape other than the substantially spherical shape. When inorganic fine particles such as silica are used as the second fine particles 41, the shape thereof is often indefinite.

The second fine particles 41 have a smaller average particle size than the first fine particles 31 contained in the first layer 3.
For example, the average particle size of the second fine particles 41 is, for example, 1 μm to 10 μm, preferably 2 μm to 8 μm.
The average particle size of the second fine particles is the number average diameter, which means the arithmetic mean diameter on the number basis. The average particle size of the second fine particles can be determined by measuring the diameter of the second fine particles arbitrarily extracted (biaxial average diameter when the fine particles are not spherical) by image analysis using a microscope.

The second binder resin layer 42 is transparent.
Examples of the resin component constituting the second binder resin layer 42 include urethane-based resin, acrylic-based resin, vinyl chloride-based resin, polyvinyl acetate-based resin, polyamide-based resin, polyester-based resin, cellulose-based resin, and the like. Be done. These resin components are usually colorless and transparent.

The thickness of the second binder resin layer 42 is not particularly limited and may be the same as or smaller than or larger than the average particle size of the second fine particles 41. Preferably, the thickness of the second binder resin layer 42 is smaller than the average particle size of the second fine particles 41. By making the thickness of the second binder resin layer 42 smaller than the average particle size of the second fine particles 41, the protruding state of the second fine particles 41 becomes good, the light reflection of the first fine particles 31 can be reliably prevented, and it is visually possible. It becomes easier to give a paper-like feeling to the material. For example, the thickness of the second binder resin layer 42 is 1 μm to 10 μm, preferably 1 μm to 4 μm.
In FIGS. 9 and 10, some of the plurality of second fine particles 41 are located on the surface side of the first fine particles 31 (overlapping the first fine particles 31). For example, a plurality of second fine particles 41 are fixed to the surface of the first fine particles 31 protruding from the surface of the first binder resin layer 32. Further, as shown in FIG. 9, a plurality of second fine particles 41 are fixed to the surface side of the first fine particles 31 embedded in the first binder resin layer 32.
Some of the plurality of second fine particles 41 are fixed in a state of being buried in the second binder resin layer 42, and the remaining second fine particles 41 are fixed in a state of protruding from the surface of the second binder resin layer 42. There is.
It should be noted that the resin component constituting the second binder resin layer 42 may be formed into a film and adhere to the surfaces of the protruding portion of the first fine particles 31 and the protruding portion of the second fine particles 41. I want to.

The number of the second fine particles 41 is not particularly limited, but if it is too small, the matting effect of the second fine particles 41 is lowered, and if it is too large, the adjacent second fine particles 41 become too dense to become the first fine particles 31. It becomes difficult for fine irregularities to occur due to this.

The second layer 4 can be formed by applying a coating liquid containing a plurality of second fine particles 41 and a resin component in a solid form and solidifying the coating liquid. As the coating liquid, for example, a printing ink in which a plurality of second fine particles 41 are dispersed in an ink containing no colorant (so-called medium ink) can be used. Such printing inks are also called matte inks. As the printing ink, for example, when the whole is 100% by mass, the second fine particles 41 are 1% by mass to 80% by mass, preferably 5% by mass to 50% by mass, and more preferably 7% by mass to 40% by mass. Ink containing% is mentioned. As the printing ink, conventionally known ones such as an ultraviolet curable type and a solvent volatile type can be used. The second layer 4 can be formed by printing the printing ink containing the second fine particles 41 in a solid shape by a known printing method such as a flexographic printing method and solidifying the ink.

[Effect of label base material]
Since the label base material of the present invention is provided with the first layer 3 containing a plurality of first fine particles 31 on the surface side of the synthetic resin film 2, the surface of the label base material is caused by the first fine particles 31. There are fine irregularities. When the surface of the label base material is touched by hand, it feels rough, and the label base material of the present invention can give the consumer the impression of paper (particularly Japanese paper).
Further, in the label base material of the present invention, since the second layer 4 containing a plurality of second fine particles 41 is provided on the surface side of the first layer 3 containing the first fine particles 31, a second layer 4 having a relatively large particle size is provided. The second fine particles 41 diffuse or disperse the light reflection of the first fine particles 31 in a disorderly manner, and as a result, the light is diffusely reflected on the surface of the label base material. Due to the matting effect of the second fine particles 41, the surface of the label base material of the present invention looks like paper. In particular, by using the first fine particles 31 having an average particle size of 1.5 to 10 times that of the second fine particles 41, a label base material that is visually and tactilely excellent in decoration is provided. it can.
As described above, according to the present invention, it is possible to provide a label base material that can give a paper-like impression to consumers through tactile sensation and visual sense while using the synthetic resin film 2.

Further, by appropriately selecting two or more laminated structures selected from the metallic luster layer 5, the base printing layer 6, the design printing layer 7, the first layer 3 and the second layer 4, a label group having excellent designability can be selected. Can provide materials.
With reference to FIGS. 7 and 8, in region A, which is one region of one surface of the label base material, the second layer 4 / first layer 3 / design printing layer 7 / base is in order from the surface side. The print layer 6 / metallic luster layer 5 are laminated (however, the laminated structure also includes the synthetic resin film 2, but it is omitted. The same applies hereinafter in this column). In such a region A, in addition to the tactile and visual paper-like effects, the design print layer 7 and the base print layer 6 appear to be printed on the paper.
Further, in the region B, the second layer 4 / metallic luster layer 5 are laminated in order from the surface side. In such a region B, the metallic luster of the metallic luster layer 5 and the matting effect of the second layer 4 synergistically exhibit a good metallic luster (without exhibiting an excessively brilliant luster like a mirror).
In the region C, the second layer 4 / first layer 3 / metallic luster layer 5 are laminated in order from the surface side. In such a region C, similarly to the region B, the metallic luster of the metallic luster layer 5 and the matting effect of the second layer 4 are synergistic, but since the first layer 3 is interposed, there are fine irregularities. It has a nice appearance.
In the region D, the second layer 4 / design printing layer 7 / base printing layer 6 / metallic luster layer 5 are laminated in this order from the surface side. In such a region D, it looks like paper visually.
In the region E, the second layer 4 / design printing layer 7 / metallic luster layer 5 are laminated in this order from the surface side. In such a region E, the design can be seen in the background of metallic luster, and the design gives a sense of quality. For example, when transparent yellow is used as the color of the design printing layer 7 and silver is used as the color of the metallic luster layer 5, the colors of the metallic luster layer 5 and the design printing layer 7 are fused to be gold. It can also be made to have the appearance of.
In the region F, the second layer 4 / the base printing layer 6 / the metallic luster layer 5 are laminated in this order from the surface side.
In the region G, the second layer 4 / first layer 3 / base printing layer 6 / metallic luster layer 5 are laminated in this order from the surface side.
In the region H of FIG. 8, the metallic luster layer 5 is laminated without having the second layer 4 or the like. In such a region H, the surface of the synthetic resin film 2 is exposed. When the base print layer 6 or the like is laminated on this region H, the label base material has an exposed surface such as the base print layer 6 at the edge portion 21 on one side in the horizontal direction.
It should be noted that FIGS. 7 and 8 show the layer structure of each region in an easy-to-understand manner, and the arrangement and size of each region are different from the actual ones.

[Use of label base material]
As described above, the label base materials 1a, ... Of the present invention can be used as an adhesive label, a tubular label, a wrapping label and the like.
As shown in FIGS. 12 and 13, the adhesive label 10 is provided with an adhesive layer 9 on the back surface of the label base material 1a. In FIG. 13, the layer structure of the label base material is not shown, and the label base material is shown as one layer. As the pressure-sensitive adhesive forming the pressure-sensitive adhesive layer 9, conventionally known pressure-sensitive adhesives can be used, and typical examples thereof include pressure-sensitive pressure-sensitive adhesives and heat-sensitive pressure-sensitive adhesives. When a pressure-sensitive adhesive is used, an adhesive label 10 (the back surface of the adhesive layer 9) is usually attached on a paper pattern (not shown). When a thermal adhesive is used, the release paper is usually unnecessary, but it may be attached on the release paper.
In the illustrated example, the adhesive label 10 is provided with the adhesive layer 9 solidly provided on the entire back surface of the label base material 1a. However, an adhesive label may be used in which the back surface of the adhesive layer is partially exposed. Adhesive labels can be used in conventionally known applications such as display labels, POP labels, and sealing labels.

An adhesive layer may be provided on the back surface of the long label base materials 1c, 1d, 1e, and 1f as shown in FIGS. 3 to 6. Such a long label base material provided with an adhesive layer is conceptually an adhesive label continuum in which a plurality of adhesive labels are continuously connected. When the long label base material constituting the continuum contains a portion (unnecessary portion) that does not constitute the adhesive label, the unnecessary portion is removed as necessary. Such a continuum is attached on a paper pattern as needed, rolled up in a roll, and stored / transported.
By cutting out one unit base material from such a continuum, one adhesive label as shown in FIG. 12 and the like can be obtained.

1a, 1b, 1c, 1d, 1e, 1f Label base material 2 Synthetic resin film 3 First layer 31 First fine particles 32 First binder resin layer 4 Second layer 41 Second fine particles 42 Second binder resin layer 5 Metal gloss layer 6 Base printing layer 7 Design printing layer 9 Adhesive layer 10 Adhesive label

Claims (5)

Synthetic resin film and
A first layer provided on the surface side of the synthetic resin film and containing a plurality of first fine particles, and
It has a second layer provided on the surface side of the first layer and containing a plurality of second fine particles, and has.
The average particle size of the first fine particles is larger than the average particle size of the second fine particles,
The second layer, see contains only having an average particle size less the second fine particles than said first fine particles as fine particles,
The first layer has a first binder resin layer provided on the surface side of the synthetic resin film, and the plurality of first fine particles fixed to the first binder resin layer, and the plurality of first layers. A label base material to which some or all of 1 fine particles are fixed in a state of protruding from the surface of the first binder resin layer . Synthetic resin film and
A first layer provided on the surface side of the synthetic resin film and containing a plurality of first fine particles, and
It has a second layer provided on the surface side of the first layer and containing a plurality of second fine particles, and has.
The average particle size of the first fine particles is larger than the average particle size of the second fine particles,
The second layer contains only the second fine particles having an average particle size smaller than that of the first fine particles as fine particles.
The second layer has a second binder resin layer provided on the surface side of the first layer and a plurality of second fine particles fixed to the second binder resin layer, and is composed of the second fine particles. A label base material, some of which are fixed in a state of protruding from the surface of the second binder resin layer . Synthetic resin film and
A first layer provided on the surface side of the synthetic resin film and containing a plurality of first fine particles, and
It has a second layer provided on the surface side of the first layer and containing a plurality of second fine particles, and has.
The average particle size of the first fine particles is larger than the average particle size of the second fine particles,
The synthetic resin film contains a metallic luster layer and has a region in which the metallic luster of the metallic luster layer can be visually recognized when viewed from the surface side.
A label base material on which the first layer is not provided and the second layer is provided on the surface side of the region where the metallic luster can be visually recognized. The label base material according to any one of claims 1 to 3 , wherein the average particle size of the first fine particles is 1.5 to 10 times the average particle size of the second fine particles. An adhesive label having the label base material according to any one of claims 1 to 4 and an adhesive layer laminated on the back surface of the label base material.

Images