JP4265253B2 - Printed material and packaging material using the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a printed material having a printed layer on the back surface of a plastic film, and a printed material in which a part of the printed layer is mat-like when viewed from the front surface, and further relates to a packaging material using the printed material. It is.
[0002]
[Prior art]
Conventionally, for example, as a packaging material, a part of a pattern printed on a plastic film (for example, a cloud part) has been matted to improve the design effect of the pattern, etc. It's being used.
[0003]
For example, as shown in the side sectional view of FIG. 3, a printed layer (12) containing a pattern is applied to the back surface of a transparent plastic film (11). Further, a white printed layer (14) is applied to the entire surface, and the surface is finely uneven with an extender pigment or the like at the surface position corresponding to a part (A) of the pattern to be matted on the printed layer (12). There is a printed matter (1) partially coated with a mat varnish layer (22).
[0004]
[Problems to be solved by the invention]
However, in the mat-like printed matter according to the above-described prior art, the matte varnish layer (22) partially coated on the surface is rubbed by transportation, storefront, etc., and the matte surface is apt to become glossy due to scratches. ) As a result.
[0005]
The present invention solves the problems of the prior art, and the problem is that the printed matter printed on the back surface of the plastic film is partially provided with matte and glossy to achieve a design effect. It is an object of the present invention to provide a printed matter that does not have a glossy portion due to scratches or the like on the mat surface and does not lack appearance as a product.
[0006]
[Means for Solving the Problems]
In order to achieve the above object in the present invention, first, in the invention of claim 1, a mat-like film formed by extrusion molding or calender molding of a thermoplastic resin in which inorganic or organic fine particles are kneaded is formed. a base material, the rear surface thereof, a white printing layer made of a printed layer and entirely white including at least picture is performed in sequence, in its front surface, and a printed matter, wherein a Gurosunisu layer is partially coated Is.
[0007]
According to the invention described in claim 1, the front surface of the mat films of inorganic or organic thermoplastic resin fine particles are kneaded in a was a film by extrusion molding or calender molding, to partially coat the Gurosunisu layer Because the surface has a glossy and matte design effect and the gloss varnish layer is excellent in smoothness, it is difficult to be scratched by transportation or handling at stores, etc. It is possible to provide printed matter without problems.
[0008]
In the invention of claim 2, the portion where the gloss varnish layer is partially coated has gloss, the other portions have mat properties, and the gloss and mat properties are applied to the back surface. The printed matter according to claim 1, wherein the printed matter is synchronized with a pattern of the printed layer.
[0009]
According to the second aspect of the present invention, the portion where the gloss varnish layer is partially coated has gloss, and the other portions have mat properties, and the gloss and mat properties are on the back surface. Since it synchronizes with the pattern of the applied printing layer, gloss and matteness are imparted to the pattern of the printing layer, and a printed matter having an excellent design effect can be provided.
[0010]
Furthermore, the invention of claim 3 is a packaging material characterized in that the printed matter according to claim 1 or 2 is used and a sealant layer is provided on the surface of the white printed layer.
[0011]
According to the third aspect of the present invention, the sealant layer is applied to the white printed layer surface of the printed matter in which the gloss and matte properties are imparted to the pattern of the printed layer, so that the gloss is synchronized with the pattern on the back side as viewed from the front side. The packaging material can be made into a sack and matte property, and this packaging material can be made into a bag to give a good design effect. It can be a packaging bag of no food.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0013]
FIG. 1 is a top view showing an example of a printed matter of the present invention and a cross-sectional view taken along the line B-B of FIG. 2, and FIG. 2 is a side sectional view showing an example of a packaging material using the printed matter of the present invention. FIG. 3 is a side sectional view showing an example of a conventional printed matter.
[0014]
As shown in the top view of FIG. 1 (a), for example, the present invention is a printed matter (1) that is back-printed on a plastic film, and a part of the pattern, that is, a “cloud” portion (12a) The present invention relates to a printed matter (1) excellent in design that can be seen as a mat, and a packaging material using the printed matter.
[0015]
Therefore, the invention according to claim 1 is provided on the back surface of the mat-like film (10) in which inorganic or organic fine particles are dispersed in a thermoplastic resin, for example, as shown in a side sectional view of FIG. A printed matter (1) in which a printed layer (12) containing a pattern and a white printed layer (14) that is entirely white are sequentially applied, and on the surface thereof, a printed matter in which a gloss varnish layer (20) is applied in a partial coat (1).
[0016]
In the invention according to claim 2, for example, as shown in FIG. 1A and FIG. 1B showing a cross section of the BB plane, a gloss varnish layer (20) is applied as viewed from above. The part appears to have glossiness, and the other part, that is, the part where the mat-like film (10) is exposed appears to have matteness. The printed matter (1) appears in the “mountain” portion (12b) of the pattern of the applied printing layer (12), and the mat property appears in the “cloud” portion (12a).
[0017]
As described above, the printed matter (1) obtained by the present invention is, for example, as shown in FIGS. 1 (a) and 1 (b), the “cloud” portion (12a) of the pattern of the printed layer (12). However, the surface of the mat-like film (10) that corresponds to the surface is mat-like, and the portion (12b) including other “mountains” and the like is glossy with the gloss varnish layer (20). The part (12a) appears to emerge, and a printed matter (1) excellent in design effect can be obtained.
[0018]
Furthermore, the printed matter (1) obtained in the present invention is a smooth gloss varnish layer (20) partially coated with a matte film (10) in which inorganic or organic fine particles are kneaded in a thermoplastic resin. Therefore, as in the conventional mat-like printed material (1) as shown in FIG. 3, the product is not scratched during transportation or handling at the store, etc. It is possible to obtain a printed material (1) that does not lack in appearance.
[0019]
Furthermore, in the invention according to the third aspect, as shown in the side sectional view of FIG. 2, for example, on the back surface of the mat-like film (10), a “mountain” portion (12b) and a “cloud” portion (12a ) And a white printed layer (14) on the entire surface, and the surface is partially coated with a gloss varnish layer (20). (14) A sealant layer (16) is applied to the surface to form a packaging material (2). The sealant layer (16) surfaces are heat-sealed to form a packaging bag (not shown) for storing food or the like. Is.
[0020]
As described above, the “mountain” portion (12b) and the “cloud” portion (12a) of the printed layer (12) are glossy and matte on the surface of the mat-like film (10) corresponding thereto. It can be used as a packaging material (2) that has excellent design effects and is excellent in design effect by heat-sealing the sealant layer (16) surfaces of the packaging material (2). It is possible to obtain a printed matter (1) that is not easily scratched by handling at stores and stores, and therefore does not lack in appearance as a product (food packaging bag or the like).
[0021]
Hereinafter, the printed matter of the present invention and the material and forming method of the packaging material using the printed matter will be specifically described.
[0022]
First, the thermoplastic resin constituting the mat-like film (10) is not particularly limited as long as it can be melted and formed into a film (film). For example, polyester resin represented by polyethylene terephthalate, polyethylene resin , Polypropylene resin, styrene resin, polyvinyl chloride resin, polyacrylonitrile resin, polyamide (nylon) resin, and the like.
[0023]
These resins in which the inorganic or organic fine particles are kneaded are formed into a mat-like film (10) by extrusion molding or calender molding. In particular, among the extrusion molding, the inflation method, the T-die method, or two An axial stretching method can be selected.
[0024]
In addition, as the inorganic or organic fine particles dispersed (kneaded) in the thermoplastic resin constituting the mat-like film (10), the particle shape can be maintained by melting or the like in the thermoplastic resin that has been melted. Any fine particles can be used.
[0025]
In general, the inorganic fine particles are generally composed of silica (silicon dioxide), titania (titanium oxide), zirconia, alumina (aluminum oxide), talc, calcium carbonate, barium sulfate, calcium sulfate, diatomaceous earth, silicic acid. Examples include extender pigments such as calcium, which can be appropriately selected in consideration of transparency and the like, and vary depending on the kind of the inorganic fine particles, but the average particle diameter is about 0.01 to 0.5 μm, About 10 to 50 parts of the thermoplastic resin can be kneaded to obtain a matte film (10).
[0026]
Further, as the organic fine particles, there can be used hard fine particles that have an appropriate cross-linked structure inside the particles, and that are not melted by the heat-melted thermoplastic resin and can retain the shape of the particles. Mainly used are styrene resin, styrene-acrylic copolymer resin, acrylic resin, divinylbenzene resin, silicone resin, urethane resin, melamine resin, styrene-isoprene resin, benzoguanamine resin, and the above resins. Examples include microgels as components, which can be appropriately selected in consideration of dispersibility with the thermoplastic resin and the like, and vary depending on the kind of the organic fine particles, but have an average particle size of 0.5 to 5. The matte film (10) can be obtained by kneading about 5 to 30 parts with respect to the thermoplastic resin at about 0 μm.
[0027]
Further, as the gloss varnish layer (20) partially coated on the mat-like film (10), an aqueous coating agent or an oil-based coating agent is used. As the former aqueous coating agent considering the environment, for example, as a solid content An acrylic polymer, a copolymer of acrylic and styrene, and the like can be mentioned. It has a solid content of about 40 to 85% by weight, and the film suitability can be improved by adding other wetting agents and surfactants. The partial coating amount of this aqueous coating agent is preferably in the range of 2 to 7 g / m 2 from the viewpoint of coating suitability, glossiness and the like. Further, as a solvent for dissolving or dispersing these solid contents, it is composed of water and a partially added volatile organic solvent, and this volatile organic solvent is preferably 5% by weight or less, for example, ethanol, methanol , Alcohols such as isopropanol and n-butanol, acetone, methyl ethyl ketone, ethyl acetate and the like.
[0028]
Examples of the partial coating method of the aqueous coating agent include a gravure printing method, a flexographic printing method in which an ink (aqueous coating agent) is transferred to a plate via an anilox roller, or a screen printing method. When the mat-like film is used as a printing medium, a gravure printing method or a flexographic printing method is preferable from the viewpoint of production efficiency.
[0029]
Examples of the oil-based coating agent include a urethane polymer, a vinyl acetate polymer, a urethane / vinyl acetate copolymer, an acrylic polymer, and a chlorinated polypropylene polymer alone or mixed. 40 wt.% To 85 wt.% Of these binders are dissolved in a solvent composed of alcohols such as methyl ethyl ketone, toluene, ethanol and isopropyl alcohol to form a coating solution, and the coating amount is used to apply a coating amount of 1 to 7 g / m <2>. The gloss varnish layer (20) can be obtained.
[0030]
The partial coating method of the oil-based coating agent includes a gravure printing method, a flexographic printing method, a screen printing method, etc. as in the case of the aqueous coating agent. If the substrate to be printed is a web-like matte film, the production efficiency For example, a gravure printing method or a flexographic printing method is preferably used.
[0031]
In addition, as the sealant layer (16) constituting the packaging material (2) of the invention according to claim 3, for example, a linear low density polyethylene film having a thickness of about 40 μm, a low density polyethylene film, a high density polyethylene film, or Can be obtained by laminating unstretched polypropylene film, ethylene / vinyl acetate copolymer film, ionomer film, etc. via dry lamination adhesive or sand polyethylene, or melted linear low density polyethylene resin, low It can be obtained by an extrusion laminating method in which a density polyethylene resin, a high-density polyethylene resin, or the like is bonded while being extruded through an anchor coating agent.
[0032]
In addition, as the innermost sealant layer (16) when the content is liquid or kneaded, it is excellent in low-temperature heat sealability and anti-blocking properties, so it uses a metallocene catalyst that can be used for high-speed filling and contamination sealing. Polymerized linear low density polyethylene is preferably used. Further, the sealant layer (16) may be a plurality of layers having different sealing performance between the core layer and the sealing layer, that is, a layer of co-extrusion or tandem extrusion.
[0033]
【The invention's effect】
Since this invention is the above structure, there exist the following effects.
That is, in the invention according to claim 1, the base material is a mat-like film formed by extrusion molding or calender molding of a thermoplastic resin in which inorganic or organic fine particles are kneaded, and at least on the back surface thereof, in printed matter white printing layer made of a printed layer and entirely white including a pattern is applied in order, on the front surface of the mat film by partially coating the Gurosunisu layer, design the surface has a gloss and matting property Since the gloss varnish layer is effective and has excellent smoothness, it is difficult to cause scratches or the like during transportation or handling at stores, and therefore, a printed matter that does not lack a good appearance as a product can be provided.
[0034]
Further, in the invention according to claim 2, the gloss varnish layer is partially coated , has gloss, and other portions have matting properties, and the printed layer is applied to the back surface. Therefore, it is possible to provide a printed matter excellent in design effect in which gloss and matte properties are imparted to the pattern of the printed layer.
[0035]
Furthermore, in the invention according to claim 3, by providing a sealant layer on the white printed layer surface of the printed matter, a packaging material imparted with glossiness and matting properties in synchronization with the pattern on the back surface when viewed from the front surface; This packaging material can be used as a packaging bag with an excellent design effect, and it is difficult to be scratched by transportation, handling at stores, etc. It can be.
[0036]
Accordingly, the present invention provides a printed layer having a design effect in which a printed layer such as a pattern is applied to the back surface of the plastic film, and a part of the printed layer looks like a mat when viewed from the front surface. As a material, it exhibits excellent practical effects.
[Brief description of the drawings]
FIG. 1 is a diagram for explaining an embodiment of a printed matter of the present invention;
(A) is the top view,
(B) is BB surface sectional drawing of (a).
FIG. 2 is an explanatory view showing an embodiment of a packaging material using the printed matter of the present invention in a side cross section.
FIG. 3 is an explanatory view showing an example of a conventional printed matter in a side section.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Printed material 2 ... Packaging material 10 ... Matte film 11 ... Transparent plastic film 12 ... Print layer 12a ... "Cloud" part 12b of the print layer ... "Mountain" part 14 of the print layer ... White print layer 16 Sealant layer A Part of the pattern to be matted

Claims (3)

The base material is a mat-like film formed by extrusion molding or calender molding of a thermoplastic resin with inorganic or organic fine particles kneaded in it. printed matter printed layer is applied in sequence, in its front surface, characterized in that the Gurosunisu layer is partially coated. The portion where the gloss varnish layer is partially coated has gloss, and the other portions have matting properties. The glossiness and matting properties are synchronized with the pattern of the printed layer on the back surface. The printed matter according to claim 1, wherein:   A packaging material, wherein the printed material according to claim 1 or 2 is used and a sealant layer is applied to the surface of the white printed layer.

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