WO2020166564A1 - Printing base member and manufacturing method therefor - Google Patents

Printing base member and manufacturing method therefor Download PDF

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Publication number
WO2020166564A1
WO2020166564A1 PCT/JP2020/005147 JP2020005147W WO2020166564A1 WO 2020166564 A1 WO2020166564 A1 WO 2020166564A1 JP 2020005147 W JP2020005147 W JP 2020005147W WO 2020166564 A1 WO2020166564 A1 WO 2020166564A1
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WO
WIPO (PCT)
Prior art keywords
layer
printing
printed
substrate according
matte
Prior art date
Application number
PCT/JP2020/005147
Other languages
French (fr)
Japanese (ja)
Inventor
幸司 山田
久彰 森川
村上　恵喜
Original Assignee
東洋製罐株式会社
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Publication of WO2020166564A1 publication Critical patent/WO2020166564A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/023—Optical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/06—Lithographic printing
    • B41M1/08—Dry printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/14—Multicolour printing
    • B41M1/18—Printing one ink over another
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/26—Printing on other surfaces than ordinary paper
    • B41M1/28—Printing on other surfaces than ordinary paper on metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/06—Veined printings; Fluorescent printings; Stereoscopic images; Imitated patterns, e.g. tissues, textiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
    • B41M7/02—Dusting, e.g. with an anti-offset powder for obtaining raised printing such as by thermogravure ; Varnishing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/20—External fittings

Definitions

  • the present invention relates to a printing substrate and a method for manufacturing the same, and more specifically, to a metal container or the like having a three-dimensional printing layer in which surface irregularities and the like formed from data by 3D scanning are realistically expressed.
  • the present invention relates to a printing substrate and a manufacturing method thereof.
  • a metal can with a three-dimensional decoration decorated with a printed image has been proposed.
  • a packaging material to be mounted on at least a part of the outer periphery of the container is used.
  • a pattern layer is laminated on the outside, and a matte layer and a gloss layer are provided on the outer surface of the pattern layer in the order of the matte layer and the gloss layer, or in the reverse order, or the matte layer and the gloss layer are arranged in parallel.
  • a packaging material characterized by being provided is proposed.
  • Patent Document 2 a striped pattern in which a plurality of streak-shaped cells are continuously formed in the circumferential direction of the can body is printed on the peripheral wall of the can body, and the gradation in the cells changes in the circumferential direction of the can body.
  • the boundary between adjacent cells is displayed due to the discontinuity of brightness, one end in the circumferential direction of the cell is darker than the multi-end, and the brightness peak is at the middle of the one end and the multi-end.
  • a metal can has been proposed in which the following description is formed.
  • an object of the present invention is to provide a printing substrate provided with a printing layer having a three-dimensional effect in which a fine surface structure such as surface unevenness is accurately and realistically reproduced based on data from a 3D scanner, and a manufacturing method thereof. Is.
  • a printed substrate having a printed layer formed on a base material based on data from a 3D scanner, wherein a diffused reflection layer having transparency is formed on the printed layer.
  • a printed substrate is provided.
  • the irregular reflection layer is composed of a matte varnish layer or a matte film
  • the matte varnish layer or the matte film contains a matte agent in an amount of 1% by weight or more based on the solid content, 3.
  • the matting agent is silica having an average particle size in the range of 1 to 10 ⁇ m, 4.
  • a white solid layer is formed between the base material and the printing layer, 5.
  • the printing layer is made of foam ink, 6.
  • the substrate is a metal container, a metal plate, or a resin film, Is preferred.
  • a step of creating a 3D scan object having a surface unevenness step amount of 30 mm or less a step of scanning the 3D scan object with a 3D scanner to create print data
  • a method for producing a printing substrate comprising a step of printing a printing layer based on the printing layer, and a step of forming a diffused reflection layer having transparency on the printing layer.
  • the 3D scan object is a printed material by thick printing by inkjet printing
  • the printing layer is a printing layer by inkjet printing or waterless lithographic printing
  • the irregular reflection layer is formed by coating and drying a matte varnish containing a matting agent in an amount of 1% by weight or more based on the solid content. Is preferred.
  • the fine surface structure originally possessed by the printing layer is accurately reproduced, which is excellent.
  • a print layer having a three-dimensional effect can be provided.
  • the printing substrate of the present invention is a printing substrate formed by forming a printing layer based on data from a 3D scanner on the substrate, and it is important that a diffuse reflection layer having transparency is formed on the printing layer. It is a characteristic. As described above, in the present invention, by forming the diffused reflection layer having transparency on the printed layer, the fine surface structure originally possessed by the printed image can be accurately and realistically reproduced, and the 3D scan object has it. It has a flat printed layer having a three-dimensional effect.
  • the printing layer is formed by a printed image printed on the basis of the data obtained from the 3D scanning object using the 3D scanner.
  • the 3D scan object preferably has an uneven surface or a texture. It is preferable that the 3D scan object has a surface unevenness step amount of 30 mm or less, particularly 10 mm or less.
  • the surface unevenness step amount means the distance between the deepest concave portion and the highest convex portion among the unevenness formed on the scan surface of the 3D scan target.
  • the printing method for forming the printing layer is not particularly limited, and it can be formed by inkjet printing, waterless lithographic printing, gravure printing, resin letterpress printing, flexographic printing, screen printing and the like. Further, the printing layer is formed by a printed image having a three-dimensional effect in which surface irregularities are accurately reproduced even when printed with a normal printing ink, but the printing ink contains thermally expandable microcapsules. By using the foaming ink for forming the ink, or by the thick printing by inkjet printing, it is possible to have a printed image with a highly designed appearance in which the three-dimensional effect is further emphasized.
  • the printed layer may be formed so as to cover the entire surface of the base material or may be formed partially.
  • the irregular reflection layer formed on the above-mentioned printed layer has transparency, a printed image can be clearly recognized, and incident light is irregularly reflected, so that the printed layer has gloss. It is something that you should not do. As a result, the printed layer can be visually recognized without impairing the three-dimensional effect such as surface unevenness and texture.
  • the diffused reflection layer needs to be formed on the outermost surface of the printing substrate and at least on the above-mentioned printing layer, and in addition to the case where it is formed directly on the printing layer, as shown in specific examples described later. It may be formed via a transparent film.
  • the print layer When the print layer is partially formed on the base material, it may be formed so as to cover the entire surface of the base material, or may be formed only on the portion where the print layer is formed. Good.
  • the diffuse reflection layer can be made of various materials as long as it can reduce the surface gloss of the printing substrate, such as forming fine irregularities on the surface, but in the present invention, it is composed of a matte varnish layer or a matte film. It is preferable.
  • the matte varnish is composed of a finish varnish conventionally used as a transparent top coat layer and a matting agent, and the matte film is composed of a transparent resin film and a matting agent. It is a thing.
  • thermosetting polyester resin acrylic resin, epoxy resin or the like is used as a base resin.
  • an amino resin such as a phenol resin or a melamine resin, an isocyanate resin, or the like, which is appropriately dissolved in an organic solvent.
  • transparent resin film constituting the matte film conventionally known transparent thermoplastic resins, for example, olefins such as low density polyethylene, high density polyethylene, polypropylene, poly 1-butene, poly 4-methyl-1-pentene, etc.
  • ethylene-vinyl acetate copolymers ethylene-vinyl alcohol copolymers, ethylene-vinyl chloride copolymers and other ethylene-vinyl copolymer resins; polystyrene, acrylonitrile-styrene copolymers, ABS, ⁇ - Styrenic resins such as methylstyrene/styrene copolymers; polyvinyl chloride, polyvinylidene chloride, vinyl chloride/vinylidene chloride copolymers, vinyl resins such as polymethyl acrylate, polymethyl methacrylate; nylon 6, nylon 6 Polyamide resin such as -6, nylon 6-10, nylon 11 and nylon 12; polyester resin such as polyethylene terephthalate, polybutylene terephthalate and polyethylene naphthalate; polycarbonate; polyphenylene oxide; biodegradable resin such as polylactic acid; It may be formed from Generally, polyesters such as polyethylene terephthalate
  • the matting agent to be blended with the finishing varnish or transparent resin film is composed of inorganic particles such as silica, aluminum hydroxide, aluminum oxide, calcium carbonate and magnesium carbonate, organic materials such as silicone resin, acrylic resin and polyethylene. Examples thereof include powders or beads.
  • silica can be particularly preferably used, and among these, those having an average particle size in the range of 1 to 10 ⁇ m can be preferably used.
  • the average particle diameter of silica is within the above range, incident light can be diffused efficiently and the surface gloss can be reduced, and it can be visually recognized without impairing the three-dimensional effect such as surface unevenness and texture of the printed layer. become.
  • the matting agent is preferably contained in the finishing varnish or the transparent resin film in an amount of 1% by weight or more, particularly 10 to 20% by weight, of the resin solid content. If the amount of the matting agent is less than the above range, the matting effect cannot be sufficiently exhibited, and the three-dimensional effect of the printing layer may be impaired. Further, when the amount of the matting agent is larger than the above range, the coatability may be poorer than that in the above range, and the scratch resistance may be deteriorated.
  • the thickness of the irregular reflection layer cannot be unconditionally specified depending on the use of the printing substrate, but generally it is preferably in the range of 1 to 20 ⁇ m in the case of the matte varnish layer and in the range of 8 to 50 ⁇ m in the case of the matte film. It is preferable.
  • Base material In the printed substrate of the present invention, even in a substrate having surface gloss, it is possible to accurately reproduce the fine surface structure originally possessed by the printing layer based on the data from the 3D scanner described above. It can be suitably applied to a metal base material such as a metal plate or a metal container, or a plastic base material such as a resin film, but is not limited thereto and may be paper or glass.
  • the base material includes, but is not limited to, a metal plate used for a three-piece can (welding can), a can lid, and the like, a metal container such as a two-piece can (seamless can), or a printing substrate such as a packaging bag or a packaging label.
  • the resin film can serve as the base material.
  • Examples of various types of metal cans include a seamless can formed by drawing, drawing and ironing, and redrawing a metal plate, and a welded can.
  • a resin film such as a polyester film, a nylon film, or a polypropylene film may be laminated on the surface of the metal can.
  • resin films such as polyester films, nylon films, polypropylene, etc., which have been used in conventional packaging containers, and resin films and heat-sealable resins, aluminum foil, etc.
  • a laminated body made of a metal film can be exemplified.
  • the above-described matte film forming the irregular reflection layer can also be used as a substrate.
  • the printing layer can be directly formed on the base material, but a base coat layer such as a white solid printing layer and/or an anchor coat layer conventionally used when forming the printing layer,
  • the print layer can also be formed via the base film.
  • the white solid printing layer those known per se as a white coat layer can be used. It can be formed by applying a white ink dispersed in a solvent together with a binder, drying it, and then curing it by heating, UV irradiation, electron beam irradiation, or the like.
  • the anchor coat layer can be formed by using an anchor coat agent known per se, for example, a thermosetting, ultraviolet ray curable or electron beam curable polyester resin, thermosetting acrylic resin, epoxy. It is formed by coating and drying a coating liquid in which a resin, polyurethane resin or the like is dispersed or dissolved in a predetermined solvent, and then curing by heating, ultraviolet ray irradiation, electron beam irradiation or the like. Further, in the manufacturing process of the printing substrate, a protective layer may be formed on the printing layer for the purpose of protecting the previously formed printing layer. Such a protective layer can be formed from the above-mentioned coating composition or transparent resin film.
  • an anchor coat agent known per se, for example, a thermosetting, ultraviolet ray curable or electron beam curable polyester resin, thermosetting acrylic resin, epoxy. It is formed by coating and drying a coating liquid in which a resin, polyurethane resin or the like is dispersed or dissolved in a predetermined solvent, and then curing by heating, ultraviolet ray
  • the printed substrate is a printed label
  • an adhesive layer for sticking to a metal container etc. is formed.
  • an appropriate adhesive can be used depending on the type of the substrate to which the printed label is attached. For example, when it is attached to a metal container such as a seamless can or a welded can, a known thermosetting adhesive that can be easily adhered to a metal container (or a resin film laminated on the metal container) by heating and pressing.
  • thermosetting resin containing a polyurethane resin, an unsaturated polyester resin, a polyester polyurethane resin, an epoxy resin, a phenol resin, an alkyd resin or the like as a thermosetting resin component, and an isocyanate or a melamine resin or the like as a curing agent component.
  • Adhesive or the like is used.
  • a heat-sealing resin layer made of a polyolefin film such as polyethylene or polypropylene, which is conventionally known and has excellent heat-sealing property, can be used as the innermost layer. ..
  • the printing substrate of the present invention has the printing layer 2 printed on the basis of the data of the 3D scanning object by the 3D scanner on the substrate 1, and the printing layer 2 is transparent.
  • the irregular reflection layer 3 is an essential component, it can take various forms depending on its application.
  • the printing substrate is a laminate having a metal plate, paper, glass, resin film or the like as a base material
  • a printing layer 2 is formed on the surface of the base material 1 as shown in FIG.
  • a diffuse reflection layer 3 made of a matte varnish layer or a matte film is formed on the printed layer, or as shown in FIG. 1(B)
  • a base coat made of a white solid printed layer on the surface of the substrate 1.
  • a layer 4 is formed on which a printed layer 2 and a diffuse reflection layer 3 consisting of a matte varnish layer are formed.
  • the irregular reflection layer 3 made of a matte film is used as the substrate, and the irregular reflection layer 3 is printed with the printing layer 2 on the back surface.
  • a printed label (FIG. 2(A)) having a layer structure in which a base coat layer 4 such as a white solid printing layer and an adhesive layer 5 are formed on the opposite side of the irregular reflection layer 3 and a transparent resin film 6 as a base material, The printing layer 2 is back-printed on one surface of the transparent resin film 6, the base coat layer 4 and the adhesive layer 5 are formed on the printing layer 2, and the surface of the transparent resin film 6 opposite to the printing layer 2 is formed.
  • a printed label (FIG.
  • the label can be obtained by adhering the adhesive layer 5 of the printed label to the body or the like of the metal container.
  • the irregular reflection layer 3 made of a matte film is used as a substrate, and the irregular reflection layer 3 has the printing layer 2 formed thereon.
  • a printed laminated film having a layer structure in which a sealing resin layer 7 is formed and a diffuse reflection layer 3 composed of a matte varnish layer is formed on the surface of the transparent resin film 6 opposite to the printed layer 2 (FIG. 3(B))
  • the printing has a layer structure in which the heat-sealable resin film 7 is used as a base material, and the base coat layer 4, the printing layer 2 and the irregular reflection layer 3 including the matte varnish layer are formed in this order on one surface of the resin film 7.
  • a laminated film (FIG. 3(C)) can be illustrated.
  • the printing layer 2 and the printing layer 2 are formed on the base material 1 which is a metal container, as in the layer structure shown in FIG.
  • the irregular reflection layer 3 composed of a matte varnish layer is sequentially formed (FIG. 1(A)), and if necessary, the base coat layer 4 is formed between the base material layer 1 and the printing layer 2 (FIG. 1(B)).
  • a protective layer may be formed on the print layer. For example, in FIG. 1, FIG. 2(A) and (C), or FIG. A protective layer may be formed between the layer 2 and the matte varnish layer 3.
  • a method of manufacturing a printing substrate according to the present invention includes a step of creating a 3D scan object having a surface unevenness of 30 mm or less, a step of scanning the 3D scan object with a 3D scanner to create print data, and The method includes a step of printing a print layer based on print data and a step of forming a transparent irregular reflection layer on the print layer.
  • the object which is the original image of the printed image of the printing substrate of the present invention has unevenness on the surface, and the unevenness of the unevenness is 30 mm or less, preferably 10 mm or less, more preferably 0.5 to 5 mm. It is desirable that it is a thing.
  • Such objects include, but are not limited to, natural materials (eg, wood grain, stone, etc.), stained glass, knitting and weaving, patchwork, sashimi, washi, felt, etc. Examples thereof include a molded product, a printed product such as thick printing by inkjet printing, or a processed product by 3D processing such as laser engraving, machining, embossing, embossing, foaming, or the like.
  • inkjet printing waterless lithographic printing, gravure printing, resin letterpress printing, flexographic printing
  • screen printing from the viewpoint of forming a clear image
  • the arrangement order of the printing layer and the irregular reflection layer can be appropriately changed depending on the layer configuration of the printing substrate, but the irregular reflection layer is formed so as to be the outermost surface layer of the printing substrate.
  • the diffuse reflection layer may be either a matte varnish layer or a matte transparent resin film.
  • Example 1 As a 3D scan target, a woven fabric having a surface unevenness of 3 mm was used. 3D data was acquired using a multi-angle non-contact scanner manufactured by Newry Co., Ltd. After applying a white coating agent made of an acrylic paint containing titanium oxide in an amount of 35% by weight to a metal container of a two-piece can (seamless can) so that the coating amount becomes 150 mg/dm 2 , then at 220° C. A white solid layer was formed by baking for 1 minute. A print image was formed on the white solid layer by waterless lithographic printing based on the 3D data obtained by inkjet printing.
  • finishing varnish layer an acrylic paint containing silica having an average particle diameter of 3 ⁇ m in an amount of 5% by weight based on the resin solid content is used, and the coating amount is 50 mg/dm 2.
  • a matte varnish layer was formed by baking at 200° C. for 3 minutes. A photograph of the printed image of the body is shown in FIG.
  • Example 1 A printing can was prepared in the same manner as in Example 1 except that silica was not contained as the finishing varnish layer. A photograph of the printed image of the body is shown in FIG.
  • the printing can of Comparative Example 1 in which the matte varnish layer was not formed on the outermost surface had light reflection and reflection parts. The plane is recognized in the part of.
  • the printing can of Example 1 gives the impression that the fabric is directly wrapped around the can body, and the depth (three-dimensional effect) of the design is recognized over the entire surface.

Abstract

The present invention relates to a printing base member provided with a three-dimensional printing layer based on data obtained by a 3D scanner, the printing layer precisely and realistically reproducing fine surface structures such as surface irregularities, and relates to a manufacturing method therefor, characterized in that a diffused reflection layer having transparency is formed on the printing layer based on data obtained by the 3D scanner on a base material.

Description

印刷基体及びその製造方法Printing substrate and manufacturing method thereof
　本発明は、印刷基体及びその製造方法に関するものであり、より詳細には、３Ｄスキャンによるデータから形成された表面凹凸等がリアルに表現された立体感のある印刷層を備えた金属容器等の印刷基体及びその製造方法に関する。 The present invention relates to a printing substrate and a method for manufacturing the same, and more specifically, to a metal container or the like having a three-dimensional printing layer in which surface irregularities and the like formed from data by 3D scanning are realistically expressed. The present invention relates to a printing substrate and a manufacturing method thereof.
　金属缶等の包装容器の外面には、商品名や内容物に関する説明等の各種印刷が施されており、特に装飾デザインのための印刷によって、他の商品との差別化を図り、消費者の購買意欲を高める等、商品価値を高めることも可能である。
　包装容器においても、印刷画像によって立体感な装飾を施した金属缶が提案されており、例えば下記特許文献１には、容器の外周の少なくとも一部に装着する包装材であって、基材の外側に絵柄層を積層してなり、かつ絵柄層の外表面に艶消し層及び光沢層を、艶消し層、光沢層の順で又はその逆の順であるいは艶消し層と光沢層とを並列に、設けてなることを特徴とする包装材が提案されている。 On the outer surface of packaging containers such as metal cans, various kinds of printing such as product names and explanations about contents are printed, and in particular, by printing for decorative design, it aims to differentiate from other products and consumers. It is also possible to increase the product value, such as increasing the purchasing will.
Also in a packaging container, a metal can with a three-dimensional decoration decorated with a printed image has been proposed. For example, in Patent Document 1 below, a packaging material to be mounted on at least a part of the outer periphery of the container is used. A pattern layer is laminated on the outside, and a matte layer and a gloss layer are provided on the outer surface of the pattern layer in the order of the matte layer and the gloss layer, or in the reverse order, or the matte layer and the gloss layer are arranged in parallel. In addition, a packaging material characterized by being provided is proposed.
　また下記特許文献２には、缶胴周壁に複数の筋状のセルが缶胴の周方向に連続して形成された縞模様が印刷され、セル内が缶胴の周方向において階調が変化するグラデーションで表示されると共に、隣接するセルの境界が明るさの不連続によって表示され、セル内はセルの周方向の一端が多端よりも暗く、かつ一端と多端の中間部に明るさの頂点となる明示が形成されて成る金属缶が提案されている。 Further, in Patent Document 2 below, a striped pattern in which a plurality of streak-shaped cells are continuously formed in the circumferential direction of the can body is printed on the peripheral wall of the can body, and the gradation in the cells changes in the circumferential direction of the can body. In addition to being displayed as a gradation, the boundary between adjacent cells is displayed due to the discontinuity of brightness, one end in the circumferential direction of the cell is darker than the multi-end, and the brightness peak is at the middle of the one end and the multi-end. A metal can has been proposed in which the following description is formed.
　一方、真上からの通常の走査ではとらえることのできない表面粗さや平坦度等の微細な表面構造を精度よく再現可能なマルチアングルスキャナ（３Ｄスキャナ）を用いて、凹凸のある被写体の表面の状態をリアルに再現した印刷物を作成することが行われている（特許文献３）。かかる３Ｄスキャナによるデータを再現した印刷を缶胴等にも施すことができれば、立体感が強く、装飾性の高い包装容器を提供することが可能になる。 On the other hand, using a multi-angle scanner (3D scanner) that can accurately reproduce a fine surface structure such as surface roughness and flatness that cannot be captured by a normal scan from directly above, the surface condition of an uneven subject It has been practiced to create a printed matter that realistically reproduces (Patent Document 3). If printing that reproduces the data by such a 3D scanner can be applied to a can body or the like, it is possible to provide a packaging container having a strong three-dimensional effect and high decorativeness.
特開２００８－２３０２３３号公報JP, 2008-230233, A 特開２０１６－９４２２２号公報JP, 2016-94222, A 特許第４３７３４９２号Patent No. 4373492
　しかしながら、金属缶のように素材に表面光沢を有する基体に、上記３Ｄスキャナにより読み取ったデータに基づいて印刷を施すと、紙等に再現した印刷画像に比して、立体感が顕著に損なわれることが分かった。
　従って本発明の目的は、３Ｄスキャナによるデータに基づく、表面凹凸等の微細な表面構造が精度よくリアルに再現された立体感を有する印刷層を備えた印刷基体、及びその製造方法を提供することである。 However, when printing is performed on a substrate having a surface gloss such as a metal can based on the data read by the 3D scanner, the stereoscopic effect is significantly impaired as compared with a printed image reproduced on paper or the like. I found out.
Therefore, an object of the present invention is to provide a printing substrate provided with a printing layer having a three-dimensional effect in which a fine surface structure such as surface unevenness is accurately and realistically reproduced based on data from a 3D scanner, and a manufacturing method thereof. Is.
　本発明によれば、基材上に、３Ｄスキャナによるデータに基づく印刷層が形成されて成る印刷基体であって、前記印刷層上に透明性を有する乱反射層が形成されていることを特徴とする印刷基体が提供される。
　本発明の印刷基体においては、
１．前記乱反射層が、艶消しニス層又は艶消しフィルムから成ること、
２．前記艶消しニス層又は艶消しフィルムが、艶消し剤を固形分中の１重量％以上の量で含有すること、
３．前記艶消し剤が、平均粒径が１～１０μｍの範囲のシリカであること、
４．前記基材と印刷層の間に、白ベタ層が形成されていること、
５．前記印刷層が発泡インキから成ること、
６．前記基材が、金属容器、金属板、樹脂フィルムの何れかであること、
が好適である。 According to the present invention, there is provided a printed substrate having a printed layer formed on a base material based on data from a 3D scanner, wherein a diffused reflection layer having transparency is formed on the printed layer. A printed substrate is provided.
In the printed substrate of the present invention,
1. The irregular reflection layer is composed of a matte varnish layer or a matte film,
2. The matte varnish layer or the matte film contains a matte agent in an amount of 1% by weight or more based on the solid content,
3. The matting agent is silica having an average particle size in the range of 1 to 10 μm,
4. A white solid layer is formed between the base material and the printing layer,
5. The printing layer is made of foam ink,
6. The substrate is a metal container, a metal plate, or a resin film,
Is preferred.
　本発明によればまた、表面凹凸段差量が３０ｍｍ以下の３Ｄスキャン対象物を作成する工程、前記３Ｄスキャン対象物を３Ｄスキャナでスキャンして印刷データを作成する工程、基材に前記印刷データに基づき印刷層を印刷する工程、前記印刷層上に透明性を有する乱反射層を形成する工程、を有することを特徴とする印刷基体の製造方法が提供される。
　本発明の印刷基体の製造方法においては、
１．前記３Ｄスキャン対象物が、インクジェット印刷による厚盛り印刷による印刷物であること、
２．前記印刷層が、インクジェット印刷又は水なし平版印刷による印刷層であること、
３．前記乱反射層が、艶消し剤を固形分中の１重量％以上の量で含有する艶消しニスの塗工・乾燥により形成されること、
が好適である。 According to the present invention, further, a step of creating a 3D scan object having a surface unevenness step amount of 30 mm or less, a step of scanning the 3D scan object with a 3D scanner to create print data, There is provided a method for producing a printing substrate, comprising a step of printing a printing layer based on the printing layer, and a step of forming a diffused reflection layer having transparency on the printing layer.
In the method for producing a printed substrate of the present invention,
1. The 3D scan object is a printed material by thick printing by inkjet printing,
2. The printing layer is a printing layer by inkjet printing or waterless lithographic printing,
3. The irregular reflection layer is formed by coating and drying a matte varnish containing a matting agent in an amount of 1% by weight or more based on the solid content.
Is preferred.
　本発明の印刷基体においては、３Ｄスキャナにより取得されたデータに基づいて形成された印刷層上に乱反射層を形成することにより、印刷層が本来有する微細な表面構造が精度よく再現され、優れた立体感を有する印刷層を備えることができる。 In the printing substrate of the present invention, by forming the irregular reflection layer on the printing layer formed based on the data acquired by the 3D scanner, the fine surface structure originally possessed by the printing layer is accurately reproduced, which is excellent. A print layer having a three-dimensional effect can be provided.
本発明の印刷基体の断面構造の例を示す図である。It is a figure which shows the example of the cross-section of the printing substrate of this invention. 印刷基体が印刷ラベルである場合のラベル貼着後の断面構造の例を示す図である。It is a figure which shows the example of the cross-section structure after label sticking when a printing substrate is a printing label. 印刷基体が印刷フィルムである場合の断面構造の例を示す図である。It is a figure which shows the example of a cross-section structure in case a printing substrate is a printing film. （Ａ）は実施例１により得られた印刷缶の表面を示す写真であり、（Ｂ）は比較例１により得られた印刷缶の表面を示す写真である。(A) is a photograph showing the surface of the printing can obtained in Example 1, and (B) is a photograph showing the surface of the printing can obtained in Comparative Example 1.
（印刷基体）
　本発明の印刷基体は、基材上に、３Ｄスキャナによるデータに基づく印刷層が形成されて成る印刷基体であって、前記印刷層上に透明性を有する乱反射層が形成されていることが重要な特徴である。
　前述したとおり、本発明においては、印刷層上に透明性を有する乱反射層を形成することにより、印刷画像が本来有する微細な表面構造が精度よくリアルに再現され、３Ｄスキャン対象物が有していた立体感を有する平面状の印刷層を備えている。 (Printing substrate)
The printing substrate of the present invention is a printing substrate formed by forming a printing layer based on data from a 3D scanner on the substrate, and it is important that a diffuse reflection layer having transparency is formed on the printing layer. It is a characteristic.
As described above, in the present invention, by forming the diffused reflection layer having transparency on the printed layer, the fine surface structure originally possessed by the printed image can be accurately and realistically reproduced, and the 3D scan object has it. It has a flat printed layer having a three-dimensional effect.
［印刷層］
　本発明の印刷基体において、印刷層は、３Ｄスキャン対象物から３Ｄスキャナを用いて取得されたデータに基づき、印刷された印刷画像により形成されている。
　３Ｄスキャン対象物としては、後述するように、表面に凹凸や質感のあるものであることが好ましい。３Ｄスキャン対象物は、その表面凹凸段差量が３０ｍｍ以下、特に１０ｍｍ以下であることが好適である。上記範囲よりも表面凹凸段差量が大きい場合には、３Ｄスキャナによる読み取りが容易でなく、一方上記範囲よりも表面凹凸段差量が小さい場合には、上記範囲にある場合に比して得られる印刷層が立体感に乏しいものになるおそれがある。なお、本明細書において表面凹凸段差量とは、３Ｄスキャン対象物のスキャン表面に形成された凹凸のうち、最も深い凹部と最も高い凸部の距離を意味する。 [Print layer]
In the printing substrate of the present invention, the printing layer is formed by a printed image printed on the basis of the data obtained from the 3D scanning object using the 3D scanner.
As described below, the 3D scan object preferably has an uneven surface or a texture. It is preferable that the 3D scan object has a surface unevenness step amount of 30 mm or less, particularly 10 mm or less. When the surface unevenness level difference is larger than the above range, it is not easy to read by the 3D scanner, while when the surface unevenness level difference is smaller than the range, printing obtained as compared with the case where the range is present. The layer may have a poor three-dimensional effect. In this specification, the surface unevenness step amount means the distance between the deepest concave portion and the highest convex portion among the unevenness formed on the scan surface of the 3D scan target.
　印刷層を形成する印刷方式は特に限定されず、インクジェット印刷、水なし平版印刷、グラビア印刷、樹脂凸版印刷、フレキソ印刷、スクリーン印刷等によって形成することができる。また印刷層は、通常の印刷インキを用いて印刷されていても、表面凹凸等が精度よく再現された立体感のある印刷画像により形成されるが、印刷インキ中に熱膨張性マイクロカプセルを含有する発泡インキを用いて形成されるか、或いはインクジェット印刷による厚盛り印刷により形成されていることにより、より立体感が強調された意匠性の高い印刷画像を有することができる。
　尚、印刷層は基材の全面を覆うように形成されていてもよいし、部分的に形成されていてももちろんよい。 The printing method for forming the printing layer is not particularly limited, and it can be formed by inkjet printing, waterless lithographic printing, gravure printing, resin letterpress printing, flexographic printing, screen printing and the like. Further, the printing layer is formed by a printed image having a three-dimensional effect in which surface irregularities are accurately reproduced even when printed with a normal printing ink, but the printing ink contains thermally expandable microcapsules. By using the foaming ink for forming the ink, or by the thick printing by inkjet printing, it is possible to have a printed image with a highly designed appearance in which the three-dimensional effect is further emphasized.
The printed layer may be formed so as to cover the entire surface of the base material or may be formed partially.
［乱反射層］
　本発明の印刷基体において、上述した印刷層の上に形成される乱反射層は、透明性を有し、印刷画像を鮮明に視認できると共に、入射する光を乱反射して、印刷層が光沢を有しないようにするものである。これにより印刷層が有する表面凹凸や質感のような立体感が損なわれることなく、視認されることが可能になる。乱反射層は、印刷基体の最表面且つ少なくとも上述した印刷層の上に形成されていることが必要であり、印刷層上に直接形成されている場合以外にも、後述する具体例に示すように、透明フィルムを介して形成されていてもよい。また印刷層が基材に部分的に形成されているような場合には、基材の全面を覆うように形成されていてもよいし、印刷層が形成された部分にのみ形成されていてもよい。
　乱反射層は、表面に微細な凹凸を形成する等、印刷基体の表面光沢を低減できる限り種々の材料のものを使用可能であるが、本発明においては、艶消しニス層又は艶消しフィルムから成ることが好ましい。艶消しニスとしては、従来透明トップコート層として使用されていた仕上げニスに、艶消し剤を配合して成るものであり、また艶消しフィルムは、透明樹脂フィルムに艶消し剤を配合して成るものである。 [Diffuse reflection layer]
In the printed substrate of the present invention, the irregular reflection layer formed on the above-mentioned printed layer has transparency, a printed image can be clearly recognized, and incident light is irregularly reflected, so that the printed layer has gloss. It is something that you should not do. As a result, the printed layer can be visually recognized without impairing the three-dimensional effect such as surface unevenness and texture. The diffused reflection layer needs to be formed on the outermost surface of the printing substrate and at least on the above-mentioned printing layer, and in addition to the case where it is formed directly on the printing layer, as shown in specific examples described later. It may be formed via a transparent film. When the print layer is partially formed on the base material, it may be formed so as to cover the entire surface of the base material, or may be formed only on the portion where the print layer is formed. Good.
The diffuse reflection layer can be made of various materials as long as it can reduce the surface gloss of the printing substrate, such as forming fine irregularities on the surface, but in the present invention, it is composed of a matte varnish layer or a matte film. It is preferable. The matte varnish is composed of a finish varnish conventionally used as a transparent top coat layer and a matting agent, and the matte film is composed of a transparent resin film and a matting agent. It is a thing.
　艶消しニス層を構成する、仕上げニス（トップコート剤）としては、従来公知の透明な熱硬化性樹脂が使用され、例えば、熱硬化性のポリエステル樹脂、アクリル樹脂、エポキシ樹脂などをベース樹脂として含み、フェノール樹脂やメラミン樹脂などのアミノ樹脂或いはイソシアネート樹脂等を硬化剤として含有している塗料組成物であり、適宜有機溶剤に溶解させたものから成る。
　また艶消しフィルムを構成する透明樹脂フィルムとしては、従来公知の透明な熱可塑性樹脂、例えば、低密度ポリエチレン、高密度ポリエチレン、ポリプロピレン、ポリ１－ブテン、ポリ４－メチル－１－ペンテン等のオレフィン系樹脂；エチレン・酢酸ビニル共重合体、エチレン・ビニルアルコール共重合体、エチレン・塩化ビニル共重合体等のエチレン・ビニル系共重合体樹脂；ポリスチレン、アクリロニトリル・スチレン共重合体、ＡＢＳ、α－メチルスチレン・スチレン共重合体等のスチレン系樹脂；ポリ塩化ビニル、ポリ塩化ビニリデン、塩化ビニル・塩化ビニリデン共重合体、ポリアクリル酸メチル、ポリメタクリル酸メチル等のビニル系樹脂；ナイロン６、ナイロン６－６、ナイロン６－１０、ナイロン１１、ナイロン１２等のポリアミド樹脂；ポリエチレンテレフタレート、ポリブチレンテレフタレート、ポリエチレンナフタレート等のポリエステル系樹脂；ポリカーボネート；ポリフエニレンオキサイド；ポリ乳酸などの生分解性樹脂；などから形成されていてよい。一般的には、透明性に優れていると共に、耐熱性が良好であるという点で、ポリエチレンテレフタレート等のポリエステルを好適に使用できる。 A conventionally known transparent thermosetting resin is used as the finishing varnish (top coating agent) that constitutes the matte varnish layer. For example, thermosetting polyester resin, acrylic resin, epoxy resin or the like is used as a base resin. A coating composition containing, as a curing agent, an amino resin such as a phenol resin or a melamine resin, an isocyanate resin, or the like, which is appropriately dissolved in an organic solvent.
As the transparent resin film constituting the matte film, conventionally known transparent thermoplastic resins, for example, olefins such as low density polyethylene, high density polyethylene, polypropylene, poly 1-butene, poly 4-methyl-1-pentene, etc. -Based resins: ethylene-vinyl acetate copolymers, ethylene-vinyl alcohol copolymers, ethylene-vinyl chloride copolymers and other ethylene-vinyl copolymer resins; polystyrene, acrylonitrile-styrene copolymers, ABS, α- Styrenic resins such as methylstyrene/styrene copolymers; polyvinyl chloride, polyvinylidene chloride, vinyl chloride/vinylidene chloride copolymers, vinyl resins such as polymethyl acrylate, polymethyl methacrylate; nylon 6, nylon 6 Polyamide resin such as -6, nylon 6-10, nylon 11 and nylon 12; polyester resin such as polyethylene terephthalate, polybutylene terephthalate and polyethylene naphthalate; polycarbonate; polyphenylene oxide; biodegradable resin such as polylactic acid; It may be formed from Generally, polyesters such as polyethylene terephthalate can be preferably used because they have excellent transparency and heat resistance.
　上記仕上げニス又は透明樹脂フィルムに配合される艶消し剤としては、シリカ、水酸化アルミニウム、酸化アルミニウム、炭酸カルシウム、炭酸マグネシウム等の無機粒子から成るもの、シリコーン樹脂、アクリル樹脂、ポリエチレンなどの有機材料のパウダー又はビーズから成るものを例示できる。
　本発明においては、これらの中でも特にシリカを好適に使用することができ、中でも平均粒径が１～１０μｍの範囲にあるものを好適に使用することができる。シリカの平均粒径が上記範囲にあることにより、入射光を効率よく乱反射させて表面光沢を低減させることができ、印刷層が有する表面凹凸や質感等の立体感が損なわれることなく、視認可能になる。
　艶消し剤は、仕上げニス又は透明樹脂フィルム中に、樹脂固形分の１重量％以上、特に１０～２０重量％の範囲で含有されていることが好適である。上記範囲よりも艶消し剤の量が少ない場合には、十分に艶消し効果を発現することができず、印刷層の立体感を損なうおそれがある。また上記範囲よりも艶消し剤の量が多い場合には、上記範囲にある場合に比して塗工性に劣ると共に、耐疵付き性が低下するおそれがある。 The matting agent to be blended with the finishing varnish or transparent resin film is composed of inorganic particles such as silica, aluminum hydroxide, aluminum oxide, calcium carbonate and magnesium carbonate, organic materials such as silicone resin, acrylic resin and polyethylene. Examples thereof include powders or beads.
In the present invention, of these, silica can be particularly preferably used, and among these, those having an average particle size in the range of 1 to 10 μm can be preferably used. When the average particle diameter of silica is within the above range, incident light can be diffused efficiently and the surface gloss can be reduced, and it can be visually recognized without impairing the three-dimensional effect such as surface unevenness and texture of the printed layer. become.
The matting agent is preferably contained in the finishing varnish or the transparent resin film in an amount of 1% by weight or more, particularly 10 to 20% by weight, of the resin solid content. If the amount of the matting agent is less than the above range, the matting effect cannot be sufficiently exhibited, and the three-dimensional effect of the printing layer may be impaired. Further, when the amount of the matting agent is larger than the above range, the coatability may be poorer than that in the above range, and the scratch resistance may be deteriorated.
　乱反射層の厚みは、印刷基体の用途などによって一概に規定できないが、一般に艶消しニス層の場合で１～２０μｍの範囲にあることが好ましく、艶消しフィルムの場合で８～５０μｍの範囲にあることが好ましい。 The thickness of the irregular reflection layer cannot be unconditionally specified depending on the use of the printing substrate, but generally it is preferably in the range of 1 to 20 μm in the case of the matte varnish layer and in the range of 8 to 50 μm in the case of the matte film. It is preferable.
［基材］
　本発明の印刷基体においては、表面光沢を有する基材においても、前述した３Ｄスキャナによるデータに基づく印刷層が本来有する微細な表面構造を精度よく再現することができるため、このような表面光沢を有する、金属板や金属容器などの金属製基材、樹脂フィルム等のプラスチック製基材に好適に適用可能であるが、これに限定されず、紙やガラス等であってもよい。
　基材としては、これに限定されないが、３ピース缶（溶接缶）や缶蓋等に用いられる金属板、２ピース缶（シームレス缶）等の金属容器、或いは印刷基体が包装袋や包装ラベル等である場合には樹脂フィルムが基材となり得る。
　具体的には、アルミニウム板、アルミニウム合金板、ティンフリースチールなどの表面処理鋼板、ブリキ板、クロムメッキ鋼板、アルミメッキ鋼板、ニッケルメッキ鋼板、スズニッケルメッキ鋼板、その各種の合金メッキ鋼板などの各種金属板を、絞り加工、絞りしごき加工、再絞り加工などによって成形したシームレス缶、及び溶接缶など、各種のタイプの金属缶を例示できる。また、上記金属缶の表面には、ポリエステルフィルム、ナイロンフィルム、ポリプロプレンフィルムなどの樹脂フィルムがラミネートされていてもよい。
　また、包装袋（パウチ）や包装ラベル（印刷ラベル）では、ポリエステルフィルム、ナイロンフィルム、ポリプロピレン等の従来包装容器に使用されていた樹脂フィルムや、この樹脂フィルムとヒートシール性樹脂やアルミ箔等の金属フィルムからなる積層体等を例示できる。尚、この場合には、前述した乱反射層を構成する艶消しフィルムを基材として使用することもできる。 [Base material]
In the printed substrate of the present invention, even in a substrate having surface gloss, it is possible to accurately reproduce the fine surface structure originally possessed by the printing layer based on the data from the 3D scanner described above. It can be suitably applied to a metal base material such as a metal plate or a metal container, or a plastic base material such as a resin film, but is not limited thereto and may be paper or glass.
The base material includes, but is not limited to, a metal plate used for a three-piece can (welding can), a can lid, and the like, a metal container such as a two-piece can (seamless can), or a printing substrate such as a packaging bag or a packaging label. When, the resin film can serve as the base material.
Specific examples include aluminum plate, aluminum alloy plate, surface-treated steel plate such as tin-free steel, tin plate, chrome-plated steel plate, aluminum-plated steel plate, nickel-plated steel plate, tin-nickel-plated steel plate, and various alloy-plated steel plates. Examples of various types of metal cans include a seamless can formed by drawing, drawing and ironing, and redrawing a metal plate, and a welded can. Moreover, a resin film such as a polyester film, a nylon film, or a polypropylene film may be laminated on the surface of the metal can.
In addition, in packaging bags (pouches) and packaging labels (printing labels), resin films such as polyester films, nylon films, polypropylene, etc., which have been used in conventional packaging containers, and resin films and heat-sealable resins, aluminum foil, etc. A laminated body made of a metal film can be exemplified. In this case, the above-described matte film forming the irregular reflection layer can also be used as a substrate.
［他の層］
　本発明の印刷基体においては、基材上に印刷層を直接形成することもできるが、従来より印刷層を形成する際に用いられる白ベタ印刷層及び／又はアンカーコート層等のベースコート層や、ベースフィルムを介して印刷層を形成することもできる。
　白ベタ印刷層を形成することにより、特に金属製容器の地色を補正して印刷画像への影響を低減することができ、鮮明な画像を形成することが可能になる。白ベタ印刷層は、ホワイトコート層としてそれ自体公知のものを使用することができ、例えば、酸化チタンや酸化亜鉛等の白色顔料を、熱硬化性、紫外線硬化性、或いは電子線硬化性の樹脂バインダーと共に溶剤中に分散して成る白色インクを塗布・乾燥し、次いで加熱、紫外線照射或いは電子線照射等により硬化することにより形成できる。
　またアンカーコート層を形成することにより、印刷層の基材への密着性を向上させることもできる。アンカーコート層は、アンカーコート剤としてそれ自体公知のものを使用することにより形成することができ、例えば、熱硬化性、紫外線硬化型或いは電子線硬化型のポリエステル樹脂、熱硬化性アクリル樹脂、エポキシ樹脂、ポリウレタン樹脂等が所定の溶剤に分散乃至溶解された塗布液を塗布・乾燥し、次いで加熱、紫外線照射或いは電子線照射等により硬化することにより形成される。
　更に、印刷基体の製造工程において、先に形成された印刷層を保護する目的で、印刷層の上に保護層を形成することもできる。このような保護層は、前述した塗料組成物又は透明樹脂フィルムから形成できる。 [Other layers]
In the printing substrate of the present invention, the printing layer can be directly formed on the base material, but a base coat layer such as a white solid printing layer and/or an anchor coat layer conventionally used when forming the printing layer, The print layer can also be formed via the base film.
By forming the solid white printing layer, it is possible to correct the background color of the metal container to reduce the influence on the printed image, and it is possible to form a clear image. As the white solid printing layer, those known per se as a white coat layer can be used. It can be formed by applying a white ink dispersed in a solvent together with a binder, drying it, and then curing it by heating, UV irradiation, electron beam irradiation, or the like.
Further, by forming the anchor coat layer, the adhesion of the printed layer to the base material can be improved. The anchor coat layer can be formed by using an anchor coat agent known per se, for example, a thermosetting, ultraviolet ray curable or electron beam curable polyester resin, thermosetting acrylic resin, epoxy. It is formed by coating and drying a coating liquid in which a resin, polyurethane resin or the like is dispersed or dissolved in a predetermined solvent, and then curing by heating, ultraviolet ray irradiation, electron beam irradiation or the like.
Further, in the manufacturing process of the printing substrate, a protective layer may be formed on the printing layer for the purpose of protecting the previously formed printing layer. Such a protective layer can be formed from the above-mentioned coating composition or transparent resin film.
　更に、印刷基体が印刷ラベルである場合には、金属製容器等に貼着するための接着剤層が形成されている。接着剤としては、印刷ラベルを貼着する基材の種類に応じて適宜のものを使用することができる。例えば、シームレス缶や溶接缶などの金属容器に貼着する場合には、加熱加圧により金属容器（或いは金属容器にラミネートされている樹脂フィルム）に容易に接着し得る公知の熱硬化型接着剤、例えば、ポリウレタン系樹脂、不飽和ポリエステル樹脂、ポリエステルポリウレタン樹脂、エポキシ樹脂、フェノール樹脂、アルキド樹脂などを熱硬化性樹脂成分として含み、イソシアネート或いはメラミン樹脂などを硬化剤成分として含む公知の熱硬化型の接着剤などが使用される。また、印刷基体がパウチ等の積層フィルムである場合には、最内層に、従来公知のヒートシール性に優れたポリエチレンやポリプロピレン等のポリオレフィン系フィルムから成るヒートシール性樹脂層を使用することもできる。 Further, when the printed substrate is a printed label, an adhesive layer for sticking to a metal container etc. is formed. As the adhesive, an appropriate adhesive can be used depending on the type of the substrate to which the printed label is attached. For example, when it is attached to a metal container such as a seamless can or a welded can, a known thermosetting adhesive that can be easily adhered to a metal container (or a resin film laminated on the metal container) by heating and pressing. For example, a known thermosetting resin containing a polyurethane resin, an unsaturated polyester resin, a polyester polyurethane resin, an epoxy resin, a phenol resin, an alkyd resin or the like as a thermosetting resin component, and an isocyanate or a melamine resin or the like as a curing agent component. Adhesive or the like is used. When the printing substrate is a laminated film such as a pouch, a heat-sealing resin layer made of a polyolefin film such as polyethylene or polypropylene, which is conventionally known and has excellent heat-sealing property, can be used as the innermost layer. ..
［層構成］
　本発明の印刷基体は、前述したとおり、基材１の上に、３Ｄスキャン対象物を３Ｄスキャナによりデータ化し、このデータに基づき印刷された印刷層２、この印刷層２上に透明性を有する乱反射層３を必須の構成とするものであるが、その用途等によって種々の形態をとることができる。
　例えば、印刷基体が、金属板、紙、ガラス、樹脂フィルム等を基材とする積層体の場合には、図１（Ａ）に示すように、基材１の表面に印刷層２が形成され、該印刷層上に艶消しニス層又は艶消しフィルムから成る乱反射層３が形成されている場合や、図１（Ｂ）に示すように、基材１の表面に白ベタ印刷層から成るベースコート層４が形成され、このベースコート層４の上に印刷層２、及び艶消しニス層から成る乱反射層３が形成されている。 [Layer structure]
As described above, the printing substrate of the present invention has the printing layer 2 printed on the basis of the data of the 3D scanning object by the 3D scanner on the substrate 1, and the printing layer 2 is transparent. Although the irregular reflection layer 3 is an essential component, it can take various forms depending on its application.
For example, when the printing substrate is a laminate having a metal plate, paper, glass, resin film or the like as a base material, a printing layer 2 is formed on the surface of the base material 1 as shown in FIG. When a diffuse reflection layer 3 made of a matte varnish layer or a matte film is formed on the printed layer, or as shown in FIG. 1(B), a base coat made of a white solid printed layer on the surface of the substrate 1. A layer 4 is formed on which a printed layer 2 and a diffuse reflection layer 3 consisting of a matte varnish layer are formed.
　また印刷基体が、印刷ラベルである場合は、例えば図２に示すように、艶消しフィルムから成る乱反射層３を基材とし、この乱反射層３に印刷層２が裏面印刷され、印刷層２の乱反射層３の反対側に、白ベタ印刷層等のベースコート層４、接着剤層５が形成された層構成を有する印刷ラベル（図２（Ａ））や、透明樹脂フィルム６を基材とし、この透明樹脂フィルム６の一方の面に印刷層２が裏面印刷され、印刷層２の上に、ベースコート層４、接着剤層５が形成され、透明樹脂フィルム６の印刷層２の反対の面に艶消しニス層から成る乱反射層３が形成された層構成を有する印刷ラベル（図２（Ｂ））、或いは樹脂フィルム６を基材とし、この樹脂フィルム６の一方の表面にベースコート層４、印刷層２及び艶消しニス層から成る乱反射層３をこの順に形成し、樹脂フィルム６の他方の面に接着剤層５が形成された層構成を有する印刷ラベル（図２（Ｃ））を例示できる。図２においては、印刷ラベルの接着剤層５を金属製容器の胴部等に貼着することにより、ラベル缶とすることができる。 When the printing substrate is a printing label, for example, as shown in FIG. 2, the irregular reflection layer 3 made of a matte film is used as the substrate, and the irregular reflection layer 3 is printed with the printing layer 2 on the back surface. A printed label (FIG. 2(A)) having a layer structure in which a base coat layer 4 such as a white solid printing layer and an adhesive layer 5 are formed on the opposite side of the irregular reflection layer 3 and a transparent resin film 6 as a base material, The printing layer 2 is back-printed on one surface of the transparent resin film 6, the base coat layer 4 and the adhesive layer 5 are formed on the printing layer 2, and the surface of the transparent resin film 6 opposite to the printing layer 2 is formed. A printed label (FIG. 2(B)) having a layer structure in which a diffuse reflection layer 3 composed of a matte varnish layer is formed, or a resin film 6 is used as a base material, and the base coat layer 4 is printed on one surface of the resin film 6. An example is a printed label (FIG. 2(C)) having a layer structure in which the layer 2 and the irregular reflection layer 3 including the matte varnish layer are formed in this order, and the adhesive layer 5 is formed on the other surface of the resin film 6. .. In FIG. 2, the label can can be obtained by adhering the adhesive layer 5 of the printed label to the body or the like of the metal container.
　更に印刷基体が、包装袋などに用いられる印刷ラミネートフィルムの場合には、例えば図３に示すように、艶消しフィルムから成る乱反射層３を基材とし、これの乱反射層３に印刷層２が裏面印刷され、印刷層２の乱反射層３の反対側に、白ベタ印刷層等のベースコート層４、接着剤層５、ヒートシール性樹脂層７が形成された層構成の印刷積層フィルム（図３（Ａ））や、透明樹脂フィルム６を基材とし、この透明樹脂フィルム６の一方の面に印刷層２が裏面印刷され、印刷層２の上に、ベースコート層４、接着剤層５、ヒートシール性樹脂層７が形成され、透明樹脂フィルム６の印刷層２の反対の面に艶消しニス層から成る乱反射層３が形成された層構成を有する印刷積層フィルム（図３（Ｂ））、或いはヒートシール性樹脂フィルム７を基材とし、この樹脂フィルム７の一方の表面にベースコート層４、印刷層２及び艶消しニス層から成る乱反射層３がこの順で形成された層構成を有する印刷積層フィルム（図３（Ｃ））を例示できる。 Further, when the printing substrate is a printing laminate film used for a packaging bag or the like, for example, as shown in FIG. 3, the irregular reflection layer 3 made of a matte film is used as a substrate, and the irregular reflection layer 3 has the printing layer 2 formed thereon. A printed laminated film having a layer structure that is printed on the back surface and has a base coat layer 4 such as a white solid printing layer, an adhesive layer 5, and a heat-sealable resin layer 7 formed on the opposite side of the irregular reflection layer 3 of the printing layer 2 (see FIG. (A)) or using the transparent resin film 6 as a base material, the printing layer 2 is back-printed on one surface of the transparent resin film 6, and the base coat layer 4, the adhesive layer 5, and the heat are formed on the printing layer 2. A printed laminated film having a layer structure in which a sealing resin layer 7 is formed and a diffuse reflection layer 3 composed of a matte varnish layer is formed on the surface of the transparent resin film 6 opposite to the printed layer 2 (FIG. 3(B)), Alternatively, the printing has a layer structure in which the heat-sealable resin film 7 is used as a base material, and the base coat layer 4, the printing layer 2 and the irregular reflection layer 3 including the matte varnish layer are formed in this order on one surface of the resin film 7. A laminated film (FIG. 3(C)) can be illustrated.
　また印刷基体が、シームレス缶等の缶胴に直接曲面印刷する印刷缶の場合には、図１に示した層構成と同様に、金属製容器である基材１の上に、印刷層２及び艶消しニス層から成る乱反射層３が順次形成され（図１（Ａ））、必要により基材層１と印刷層２の間にベースコート層４が形成される（図１（Ｂ））。
　尚、前述したとおり、印刷層の上には保護層を形成することもでき、例えば、図１、図２（Ａ）及び（Ｃ）、或いは図３（Ａ）及び（Ｃ）においては、印刷層２と艶消しニス層３の間に保護層が形成されていてもよい。 In the case where the printing substrate is a printing can such as a seamless can that directly performs curved surface printing on a can body, the printing layer 2 and the printing layer 2 are formed on the base material 1 which is a metal container, as in the layer structure shown in FIG. The irregular reflection layer 3 composed of a matte varnish layer is sequentially formed (FIG. 1(A)), and if necessary, the base coat layer 4 is formed between the base material layer 1 and the printing layer 2 (FIG. 1(B)).
As described above, a protective layer may be formed on the print layer. For example, in FIG. 1, FIG. 2(A) and (C), or FIG. A protective layer may be formed between the layer 2 and the matte varnish layer 3.
（印刷基体の製造方法）
　本発明の印刷基体の製造方法は、表面凹凸段差量が３０ｍｍ以下の３Ｄスキャン対象物を作成する工程、前記３Ｄスキャン対象物を３Ｄスキャナでスキャンして印刷データを作成する工程、基材に前記印刷データに基づき印刷層を印刷する工程、前記印刷層上に透明性を有する乱反射層を形成する工程、を有している。 (Method for manufacturing printing substrate)
A method of manufacturing a printing substrate according to the present invention includes a step of creating a 3D scan object having a surface unevenness of 30 mm or less, a step of scanning the 3D scan object with a 3D scanner to create print data, and The method includes a step of printing a print layer based on print data and a step of forming a transparent irregular reflection layer on the print layer.
　本発明の印刷基体の印刷画像の原画となる対象物としては、表面に凹凸があり、この凹凸の段差量が３０ｍｍ以下、好ましくは１０ｍｍ以下、より好ましくは０．５～５ｍｍの範囲にある対象物であることが望ましい。
　このような対象物としては、これに限定されないが、自然の素材（例えば、木目や石材等）、ステンドグラス、編み物や織物、パッチワーク、刺し子、和紙、フェルト等の素材そのもの、３Ｄプリンターによる光造形物や、インクジェット印刷による厚盛り印刷等の印刷物、或いはレーザ彫刻や機械加工、エンボス成形、型押し、発泡成形等による３Ｄ加工による加工物等を例示することができる。 The object which is the original image of the printed image of the printing substrate of the present invention has unevenness on the surface, and the unevenness of the unevenness is 30 mm or less, preferably 10 mm or less, more preferably 0.5 to 5 mm. It is desirable that it is a thing.
Such objects include, but are not limited to, natural materials (eg, wood grain, stone, etc.), stained glass, knitting and weaving, patchwork, sashimi, washi, felt, etc. Examples thereof include a molded product, a printed product such as thick printing by inkjet printing, or a processed product by 3D processing such as laser engraving, machining, embossing, embossing, foaming, or the like.
　上述した３Ｄスキャン対象物の表面を３Ｄスキャナを用いてデータ編集を行い、版式印刷により印刷を行う場合には、該データに基づき製版を行う。印刷方式は、前述したとおり、インクジェット印刷、水なし平版印刷、グラビア印刷、樹脂凸版印刷、フレキソ印刷、スクリーン印刷等従来公知の方法によって印刷することができるが、鮮明な画像を形成する観点から、スクリーン線数もしくは解像度が高いことが望ましい。上記印刷方式の中でも、インクジェット印刷に又は水なし平版印刷によって印刷することが好ましい。
　印刷層及び乱反射層は、前述したとおり、印刷基体の層構成によってその構成順序は適宜変更することができるが、印刷基体の最表面層となるように乱反射層を形成する。乱反射層として、艶消しニス層或いは艶消し透明樹脂フィルムのいずれであってもよい。 When data is edited on the surface of the above-described 3D scan object using a 3D scanner and printing is performed by plate printing, plate making is performed based on the data. The printing method, as described above, inkjet printing, waterless lithographic printing, gravure printing, resin letterpress printing, flexographic printing, can be printed by conventionally known methods such as screen printing, from the viewpoint of forming a clear image, It is desirable that the screen frequency or resolution is high. Among the above printing methods, it is preferable to perform inkjet printing or waterless lithographic printing.
As described above, the arrangement order of the printing layer and the irregular reflection layer can be appropriately changed depending on the layer configuration of the printing substrate, but the irregular reflection layer is formed so as to be the outermost surface layer of the printing substrate. The diffuse reflection layer may be either a matte varnish layer or a matte transparent resin film.
（実施例１）
　３Ｄスキャン対象物として、表面凹凸段差が３ｍｍである織地を用いた。ニューリー株式会社製マルチアングル非接触スキャナを用いて、３Ｄデータを取得した。
　２ピース缶（シームレス缶）の金属容器に酸化チタンを３５重量％の量で含有するアクリル系塗料から成るホワイトコート剤を塗工量が１５０ｍｇ／ｄｍ２となるように塗布した後、２２０℃で１分焼き付けることにより白ベタ層形成した。この白ベタ層上に、インクジェット印刷により取得した３Ｄデータに基づき、水なし平版印刷により印刷画像を形成した。仕上げニス層（艶消しニス層）として、平均粒径３μｍのシリカを樹脂固形分に対して５重量％の量で含有するアクリル系塗料を用い、塗工量が５０ｍｇ／ｄｍ２となるように塗布した後、２００℃で３分焼き付けることにより艶消しニス層を形成した。胴部の印刷画像の写真を図４（Ａ）に示した。 (Example 1)
As a 3D scan target, a woven fabric having a surface unevenness of 3 mm was used. 3D data was acquired using a multi-angle non-contact scanner manufactured by Newry Co., Ltd.
After applying a white coating agent made of an acrylic paint containing titanium oxide in an amount of 35% by weight to a metal container of a two-piece can (seamless can) so that the coating amount becomes 150 mg/dm 2 , then at 220° C. A white solid layer was formed by baking for 1 minute. A print image was formed on the white solid layer by waterless lithographic printing based on the 3D data obtained by inkjet printing. As the finishing varnish layer (matte varnish layer), an acrylic paint containing silica having an average particle diameter of 3 μm in an amount of 5% by weight based on the resin solid content is used, and the coating amount is 50 mg/dm 2. After coating, a matte varnish layer was formed by baking at 200° C. for 3 minutes. A photograph of the printed image of the body is shown in FIG.
（比較例１）
　実施例１において、仕上げニス層としてシリカを含有しない以外は同様にして、印刷缶を作成した。胴部の印刷画像の写真を図４（Ｂ）に示した。 (Comparative Example 1)
A printing can was prepared in the same manner as in Example 1 except that silica was not contained as the finishing varnish layer. A photograph of the printed image of the body is shown in FIG.
（考察）
　図４（Ａ）及び（Ｂ）を対比することから明らかなように、最表面に艶消しニス層を形成していない比較例１の印刷缶は、光の反射や映り込み部分があり、これらの部分で平面が認識されている。これに対して、実施例１の印刷缶は、缶胴に織物を直接巻き付けたような印象を与えることができ、全面にわたってデザインの奥行（立体感）が認識される。 (Discussion)
As is clear from comparison between FIGS. 4(A) and 4(B), the printing can of Comparative Example 1 in which the matte varnish layer was not formed on the outermost surface had light reflection and reflection parts. The plane is recognized in the part of. On the other hand, the printing can of Example 1 gives the impression that the fabric is directly wrapped around the can body, and the depth (three-dimensional effect) of the design is recognized over the entire surface.
　１　基材、２　印刷層、３　乱反射層、４　ベースコート層、５　接着剤層、６　樹脂フィルム、７　ヒートシール性樹脂層。 1 base material, 2 printing layer, 3 irregular reflection layer, 4 base coat layer, 5 adhesive layer, 6 resin film, 7 heat sealable resin layer.

Claims (11)

  1. 　基材上に、３Ｄスキャナによるデータに基づく印刷層が形成されて成る印刷基体であって、前記印刷層上に透明性を有する乱反射層が形成されていることを特徴とする印刷基体。 A printing substrate formed by forming a printing layer based on data from a 3D scanner on a substrate, wherein a diffuse reflection layer having transparency is formed on the printing layer.
  2. 　前記乱反射層が、艶消しニス層又は艶消しフィルムから成る請求項１記載の印刷基体。 The printing substrate according to claim 1, wherein the irregular reflection layer comprises a matte varnish layer or a matte film.
  3. 　前記艶消しニス層又は艶消しフィルムが、艶消し剤を固形分中に１重量％以上の量で含有する請求項１又は２記載の印刷基体。 The printing substrate according to claim 1 or 2, wherein the matte varnish layer or the matte film contains a matte agent in an amount of 1% by weight or more in solid content.
  4. 　前記艶消し剤が、平均粒径が１～１０μｍの範囲のシリカである請求項３記載の印刷基体。 The printing substrate according to claim 3, wherein the matting agent is silica having an average particle size in the range of 1 to 10 μm.
  5. 　前記基材と印刷層の間に、白ベタ層が形成されている請求項１～４の何れかに記載の印刷基体。 The printed substrate according to any one of claims 1 to 4, wherein a white solid layer is formed between the base material and the printed layer.
  6. 　前記印刷層が発泡インキから成る請求項１～５の何れかに記載の印刷基体。 The printing substrate according to any one of claims 1 to 5, wherein the printing layer is made of foam ink.
  7. 　前記基材が、金属容器、金属板、樹脂フィルムの何れかである請求項１～６の何れかに記載の印刷基体。 The printed substrate according to any one of claims 1 to 6, wherein the base material is a metal container, a metal plate, or a resin film.
  8. 　表面凹凸段差量が３０ｍｍ以下の３Ｄスキャン対象物を作成する工程、前記３Ｄスキャン対象物を３Ｄスキャナでスキャンして印刷データを作成する工程、基材に前記印刷データに基づき印刷層を印刷する工程、前記印刷層上に透明性を有する乱反射層を形成する工程、を有することを特徴とする印刷基体の製造方法。 A step of creating a 3D scan object having a surface unevenness of 30 mm or less, a step of scanning the 3D scan object with a 3D scanner to create print data, and a step of printing a print layer on a base material based on the print data. And a step of forming a diffused reflection layer having transparency on the printed layer.
  9. 　前記３Ｄスキャン対象物が、インクジェット印刷による厚盛り印刷による印刷物である請求項８記載の印刷基体の製造方法。 The method for manufacturing a printing substrate according to claim 8, wherein the 3D scan object is a printed material by thick printing by inkjet printing.
  10. 　前記印刷層が、インクジェット印刷又は水なし平版印刷による印刷層である請求項８又は９記載の印刷基体の製造方法。 The method for producing a printed substrate according to claim 8 or 9, wherein the printed layer is a printed layer formed by inkjet printing or waterless planographic printing.
  11. 　前記乱反射層が、艶消し剤を固形分中１重量％以上の量で含有する艶消しニスの塗工・乾燥により形成される請求項８～１０の何れかに記載の印刷基体の製造方法。 The method for producing a printing substrate according to any one of claims 8 to 10, wherein the irregular reflection layer is formed by coating and drying a matte varnish containing a matting agent in an amount of 1% by weight or more in a solid content.
PCT/JP2020/005147 2019-02-14 2020-02-10 Printing base member and manufacturing method therefor WO2020166564A1 (en)

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