JP2006151434A - Decorative paper cup container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a decorative paper cup container which is excellent in surface decorativeness, appearance, design, decorativeness, over-the-counter display effect or the like, beautiful in appearance of an inner end face, excellent in paper cup moldability, and excellent in adhesive strength of an adhesion part. <P>SOLUTION: In the decorative paper cup container, the paper cup consists of a cylindrical barrel portion and a bottom portion with both edges of a barrel member sheet overlapped in a cylindrical shape and adhered to each other, and a decorative film formed in an adequate shape on an inner surface of an emboss hologram film having emboss holograms thereon through aluminum vapor deposition is affixed to the barrel member sheet. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention has an attractive end face of the inner adhesive part of the paper cup container, and is excellent in cosmetics, decorativeness, design, storefront display and display effects for improving the beauty when storing and distributing stored items. The present invention relates to a decorative paper cup container that can improve the image and has excellent moldability when producing a paper cup container, and can be stably and efficiently produced.
Examples of stored items include alcoholic beverages such as liquor, wine and whiskey; non-alcoholic beverages such as water, juice, coffee, cocoa, tea and tea; snacks and confectionery such as chocolate; Goods; desserts such as jelly, pudding, and yogurt are exemplified.

  Conventionally, paper cup containers are roughly classified into beverage cup containers, food cup containers, medical cup containers, and the like depending on applications. Cold drinks such as juice and carbonated drinks and hot drinks such as coffee and cocoa are used as beverage paper cup containers.

  For cold beverages, paper cup containers processed with paraffin wax dominate, but recently, a thermoplastic resin layer is formed on the inner surface of the paper cup container by extrusion lamination processing or dry lamination processing. And the overcoat agent for providing water resistance is apply | coated to the front side surface, and the paper cup container with the deterioration prevention effect of the cup rigidity by dew condensation is manufactured.

  Also, it is a water-resistant paper with a thermoplastic resin layer formed on one or both sides by extrusion lamination or dry lamination, etc., and beautiful printing to give advertising media or cosmetics on the front side The mainstream is a paper cup container with a display effect that forms a layer.

  For hot beverages, a thermoplastic resin layer is formed by extrusion lamination processing or dry lamination processing on the inner side surface or both side surfaces. A paper cup container in which a printed layer having a cosmetic appearance is formed on the front side depending on the purpose of use or distribution conditions is also used.

  Further, the cold beverage paper cup container and the hot beverage paper cup container are roughly classified into a vending machine and a manual machine according to usage. The vending machine is used in vending machines, and the manual machine is used as a paper cup container for consumers sold in convenience stores and supermarkets.

The size of these papers the paper cup containers that are used in the paper cup vessel, intended use, is appropriately selected depending on the purpose of use, typically, the basis weight is preferably from 150g / m ² ~300g / m ² position. And the thermoplastic resin layer is formed in the thickness of about 14-60 micrometers on the front side or inner side or both sides of paper.

  Furthermore, as for paper cup containers, cooking has been actively performed using a microwave oven, including cooked foods or cooked foods, mainly in food paper cup containers. There is a growing demand for paper cup containers that are functional, beautiful in appearance and good in appearance.

Also, paper cup containers are often used as packaging containers by sealing the opening after the stored items are stored. In view of the diversification of products, etc., there is a need for a paper cup container that has a unique and distinctive decoration and is excellent in store display and display effects for the purpose of improving the brand image of the product. .

(1) Prior art 1
2. Description of the Related Art A paper cup container having a vapor deposition layer formed on the entire surface of a body of the container is widely known as a paper cup container that is excellent in decorativeness, cosmetics, designability, storefront display, and display effect for improving aesthetics.

  In this paper cup container, as shown in FIG. 10A, a body member sheet 100 serving as a body portion is formed in a fan shape. Further, as shown in FIG. 10 (b), the body member sheet 100 has a thermoplastic resin layer 102 formed on the inner surface of the paper substrate 101. And the vapor deposition film 104 in which the vapor deposition layer 103 is formed is bonded on the outer surface. Further, a thermoplastic resin layer 106 is formed on the outer surface of the vapor deposition film 104 with a printing layer 105 interposed therebetween.

(2) Prior art 2
In addition, it is a paper cup container filled with liquid foods, etc., and a new cosmetic paper cup container (e.g., which gives cosmetics and design to the characters and patterns on the front side and improves the surface gloss and improves the store display effect (for example, (See Patent Document 1).

  The cosmetic paper cup container cup member 200 has a transparent synthetic resin 110 as an outermost layer as shown in FIG. 11, and in this order, a vapor-deposited thin film protective layer 111, a printed layer 112, a vapor-deposited thin film layer 113, a cardboard layer 114, and an outermost layer. It is formed of a laminate formed by laminating a synthetic resin layer on the inner layer.

  And the cosmetic paper cup which has the printing layer which is excellent in surface glossiness, and is externally metal glossy by heat-processing the surface of the transparent synthetic resin 110 which is the outermost layer of the liquid paper cup obtained by the cup member 200 by shaping | molding It is stated that a container is obtained.

(3) Prior art 3
In addition, a foamed paper cup container (see, for example, Patent Document 2) that has a unique texture in design, has a sufficient heat insulating effect, and has a non-slip effect is also known.

  As shown in FIG. 12, the body member 300 of the body portion of the foamed paper cup container has a thermoplastic resin foam layer 116, a printing layer 117, a base material layer 118 mainly composed of paper, and a thermoplastic resin layer 119 in order from the outer surface. Formed from. A transparent varnish 120 is applied between the thermoplastic resin foam layer 116 and the base material layer 118 mainly composed of paper.

(4) Prior art 4
Also known are a paper container laminate 400 and a paper container (for example, see Patent Document 3) in which physical properties such as abrasion resistance of the surface pattern layer and design properties such as surface gloss are improved.

  As shown in FIG. 13, the paper container laminate 400 and the paper container have a paper base 121 and a thermoplastic resin layer 122 formed on the innermost surface. A polyethylene resin layer 123 is laminated on the outer surface of the paper substrate 121. Furthermore, it has a laminated structure in which an adhesive layer and a picture layer 125 are formed on the upper surface of the polyethylene resin layer 126 by transfer. And the paper container is produced using this laminated material 400. FIG.

(5) Prior art 5
Also known is a high-gloss paper cup (see, for example, Patent Document 4) that has a high printed gloss on the surface, wear resistance, can be formed into a paper cup, and has a good appearance.

  As shown in FIG. 14A, this strong glossy paper cup is formed into a cylindrical shape by forming a side seal portion 128 by heat-sealing a printed body portion 126. A curl 127 is applied to the upper edge of the opening.

  Moreover, the material structure of the trunk | drum 126 consists of the laminated material 500 which uses paper as a base material, as shown in FIG.14 (b). In the laminated material 500, a heat-sealing barrier layer 132 is formed in the innermost layer of the paper layer 129. Further, a polyethylene terephthalate film or stretched polypropylene in which a metal layer 130 such as an aluminum foil or aluminum vapor deposition is formed on the outside of the paper layer 129 and a printed layer 131 is formed on the top surface or the back surface of the metal layer 130. A printing gloss imparting film 133 made of a film is laminated.

Prior art documents are shown below.
JP-A-11-100020 JP-A-9-142435 JP-A-10-35646 JP 2000-21628 A

(1) About Prior Art 1 In Prior Art 1, a vapor deposition film in which a vapor deposition layer is formed on the entire outer surface of a paper base material of a trunk member sheet that is a trunk of a paper cup container is laminated. For this reason, when the body member sheet is formed into a cylindrical shape, the vapor deposition layer is also formed on the adhesive portion where the both side edges of the body member sheet are overlapped and bonded together, so the strength of the adhesive portion varies. There is a problem that it is easy and it is difficult to maintain a stable adhesive strength.

  In addition, when the paper cup container is molded, the end face of the vapor deposition layer is on the end face of the inner adhesive part where the paper cup container is overlapped and bonded, so that the portion can be visually observed, and therefore, the appearance is poor. There's a problem.

  In addition, when the edge of the body member sheet is skive hemmed by the stored item stored in the paper cup container, because one end surface of the inner adhesive portion that is overlapped and bonded is covered with the vapor deposition layer, Since this part can be visually observed, there is a problem that it looks worse.

  Further, in the inner surface foreign matter inspection apparatus or the like used in the inspection work of the paper cup container, there is a problem that the end face of the vapor deposition layer on the inner adhesive portion end face is mistaken for foreign matter and discharged as a foreign matter mixed paper cup container.

  In addition, there is a problem that the stored item is adversely affected by the stored item stored in the paper cup container by contacting the end face of the vapor deposition layer and the stored item is contaminated. Furthermore, there is a problem that a part of the stored item penetrates into the end face and delamination occurs in the inner adhesive portion.

(2) Prior Art 2 In Prior Art 2, a vapor deposition layer is formed on the entire front surface of the paper base of the cup member in order to improve the store display effect, and a printing layer is further formed. For this reason, when forming a paper cup container, since the vapor deposition layer is also provided on the adhesive portion where the both side edges of the cup member are overlapped and bonded, the strength of the adhesive portion tends to vary and is stable. There is a problem that it is difficult to maintain the adhesive strength.

  Furthermore, since there is an end face of the vapor deposition layer on the end face of the adhesive part on the inner surface of the paper cup container, there is a problem that the part can be visually observed, and therefore the appearance is poor. In addition, there is a problem in that a stored item stored in the paper cup container comes into contact with the end surface of the vapor deposition layer, and the stored item is contaminated. Furthermore, there is a problem that a part of the stored article penetrates into the end face and the inner adhesive portion or the like causes delamination.

  Further, the surface of the transparent synthetic resin, which is the outermost layer of the liquid paper cup obtained by molding the cup member, is subjected to a heat treatment for passing it through an oven at about 150 ° C. for about 30 seconds in order to further improve the surface gloss. It is described.

  However, it is usually difficult to improve the surface gloss of the transparent synthetic resin layer only by heating the resin layer. Further, there is a problem that the transparent synthetic resin layer is formed in a mat state on the contrary.

(3) Prior Art 3 In Prior Art 3, the water in the paper evaporates by heating the formed paper cup container, and the evaporation pressure and the thermal expansion of the air act on it to act on the outermost layer surface. It is described that a foamed structure is generated in the thermoplastic resin layer. However, in order to form a uniform foamed layer, there is a problem that the moisture in the paper must always be kept at a uniform and constant moisture content.

  In addition, seasoning is usually applied to keep the moisture in the paper uniform and constant. However, since the thermoplastic resin layers are formed on the outer side surface and the inner side surface of the base material layer, it is difficult to keep the water content of the base material layer uniform and constant even after seasoning.

  In addition, in order to foam only the thermoplastic resin layer on the outermost layer surface, the thermoplastic resin layer formed on the inner surface of the paper cup must use a resin having a higher softening point than the thermoplastic resin layer on the outermost layer surface. There are problems such as difficult to select resin.

  In addition, it is described that it is preferable to form an aluminum foil or the like on the inner side surface of the paper so that moisture in the paper can be easily evaporated on the outer side surface. However, the upper surface of the aluminum foil has a problem that the thermoplastic resin layer on the outermost layer surface and the innermost layer surface foam together because a thermoplastic resin layer is formed on the molding process.

  In addition, since the paper cup container is heated and pressurized when the bonded portion of the barrel portion or the bonded portion of the barrel portion and the bottom portion is molded before being heated, it is uniform as with the other barrel portions. It is difficult to obtain a foamed state. And there exists a problem that the external appearance looks worse.

Furthermore, the paper cup container has a problem that the both end edges of the body portion are overlapped and bonded, and the end surface of the inner adhesive portion has an end surface such as an aluminum foil, so that the portion can be visually observed, and therefore the appearance is not good. .
In addition, when the edge of the body is skive-hemmed with the contents stored in the paper cup container, it looks better because one end face of the inner adhesive part that is overlapped and bonded is covered with aluminum foil or the like. Becomes worse. Furthermore, in an inner surface foreign matter inspection apparatus or the like used in the inspection work of a paper cup container, there is a problem that the end face of the vapor deposition layer on the inner adhesive portion end face is mistaken for foreign matter and discharged as a foreign matter mixed paper cup container.

  Further, there is a problem in that the stored items stored in the paper cup container come into contact with the end surface of the aluminum foil, and the stored items are contaminated. Furthermore, there is a problem that a part of the stored item penetrates into the end face and causes delamination at the inner adhesive portion.

  Further, there is a problem that a dedicated heating and foaming device for foaming the outermost thermoplastic resin layer is required, and productivity is remarkably deteriorated. There is also a problem that the work process is complicated.

  Further, by foaming the outermost thermoplastic resin layer, the outer surface is formed in a mat shape without gloss. And it does not look good and it is difficult to improve the store display effect.

(4) Prior Art 4 In Prior Art 4, an operation of laminating a polyethylene resin layer on the outer surface of a paper substrate, an operation of producing a transfer paper for forming a surface pattern layer on the surface of the polyethylene resin layer, and further production The paper container laminate is produced by transferring the transferred paper to the polyethylene resin layer. For this reason, there are problems that it takes time to manufacture and the operation becomes complicated.

  In addition, when producing a laminated material for paper containers, there are operations such as producing transfer paper or transferring the transfer paper to a polyethylene resin layer. There is a problem that becomes high. Further, there is a problem that a dedicated machine for transferring must be used.

  Furthermore, the laminated material for paper containers has a problem that transfer defects (such as wrinkles, unevenness, registration errors, etc.) occur when transferring transfer paper to a polyethylene resin layer. Then, problems such as defective transfer materials and back paper (release paper) processing of transfer paper occur.

(5) About Prior Art 5 Prior art 5 describes that a high gloss paper cup having high printing gloss can be obtained by printing on the front or back side of a printing gloss imparting film layer made of polyethylene terephthalate film or stretched polypropylene film. ing.

  However, when a transparent resin film is printed and bonded to a paper layer, the glossiness and appearance usually differ depending on the surface gloss or surface roughness of the paper layer. Furthermore, there is a problem that it is difficult to select a paper layer that is excellent in surface roughness or surface gloss and has good moldability.

  In addition, when an aluminum foil layer is formed in order to give a metallic feeling to printing, when the paper cup container is formed, the aluminum foil layer is also formed on the bonded portion that is laminated and bonded. For this reason, there is a problem that the strength of the bonding portion is likely to vary and it is difficult to maintain a stable bonding strength.

  Furthermore, there is a problem that the aluminum foil layer appears on the end face of the inner surface bonding portion of the paper cup container, and the appearance is poor. In addition, there is a problem in that the stored item is adversely affected by contacting the end surface of the aluminum foil layer with the stored item. Furthermore, there is a problem that a part of the stored material penetrates into the end face and causes delamination between the paper layer and the aluminum foil layer.

  The present invention has been made in view of the above-described conventional problems, and an object thereof is to provide the following decorative paper cup container. That is, the first object of the present invention is to provide a beautiful decorative paper cup container that is excellent in decorativeness, cosmetics, design, design, storefront display and display effect and has a high-class feeling.

  In addition, the second object of the present invention is that when the paper cup container is molded, both end edges of the body portion are overlapped, and there is no end face of the printed layer or vapor deposition layer on the end face of the inner adhesive part that is bonded, The object is to provide a decorative paper cup container whose parts are not visible and therefore have a good appearance.

  The third object of the present invention is to provide a decorative paper cup container that has excellent moldability and can be molded efficiently and stably using a known paper cup molding machine.

  In addition, the fourth object of the present invention is the appearance decoration, cosmetics, design, design, or store display and display effects without causing adverse effects such as contamination of the items stored in the paper cup container. It is to provide a beautiful decorative paper cup container which is excellent in quality and has a high-class feeling.

  In addition, the fifth object of the present invention is to provide stable adhesive strength and high strength since both end edges of the body member are overlapped and the bonded portion bonded in a cylindrical shape is a paper base material and a thermoplastic resin layer. The present invention provides a decorative paper cup container having a strong adhesive portion and no delamination.

In order to solve the above problems, first, the invention according to claim 1 of the present invention is:
A paper cup container consisting of a cylindrical body part and a bottom part, which are bonded by overlapping the both ends of the body member in a cylindrical shape,
A decorative film formed in an appropriate shape by aluminum deposition on the inner surface of the embossed hologram film provided with the embossed hologram is bonded to the body member sheet,
In addition, the decorative paper cup container is characterized in that the aluminum vapor deposition is not provided on at least the inner adhesive end face of the paper cup container in which both end edges of the body member sheet are bonded in a cylindrical shape.

Next, the invention according to claim 2 of the present invention is as follows:
2. The decorative paper according to claim 1, wherein the portion where the aluminum vapor deposition is not provided is provided by any one of a masking method, an acid-alkali removal method, and a water-washing method. It is a cup container.

  The decorative paper cup container of the present invention is excellent in decorativeness, cosmetics, design, and design of the appearance by forming aluminum vapor deposition on the inner surface of the embossed hologram film provided with the embossed hologram. It has a display effect and can differentiate products.

  In addition, since the paper cup container has the both end edges of the body member overlapped and the bonded portion bonded in a cylindrical shape is a paper base material and a thermoplastic resin layer, the end surface of the inner bonded portion is good-looking and clean. Rich in feeling.

  Further, the body member provided with the embossed hologram can be easily and inexpensively manufactured with a uniform, stable quality by a known extrusion processing machine, laminating machine or printing machine.

  In addition, the paper cup container has a uniform, stable adhesive strength, and strong adhesion because both end edges of the body member are overlapped and the adhesive portion bonded in a cylindrical shape is a paper base material and a thermoplastic resin layer. Part can be obtained. Further, delamination from the inner end face can be prevented.

  Furthermore, it is excellent in a unique texture and design, individuality, design, and cosmetics, and the brand image of the product can be improved by a characteristic decoration.

  Further, a decorative paper cup container having stable quality, efficiency, and excellent cosmetics can be molded with a known cup molding machine, as in the conventional paper cup manufacturing operation.

  The decorative paper cup container of the present invention will be described in detail below along the embodiments with reference to the drawings. 1 to 9 show an embodiment of the present invention.

  The decorative paper cup container of the present invention has a good appearance at the end face of the inner adhesive part, and is excellent in cosmetics, decorativeness, design, storefront display and display effects for improving the beauty when storing and distributing stored items, It is a decorative paper cup container that can improve the brand image and has excellent moldability when producing a paper cup container, and can be stably and efficiently produced.

  Examples of the stored items include alcoholic beverages such as liquor, wine and whiskey; non-alcoholic beverages such as water, juice, coffee, cocoa, tea and tea; confectionery such as snacks and chocolate; ice cream and ice confectionery Examples of frozen confectionery products; desserts such as jelly, pudding, and yogurt.

  Next, FIG. 1 shows a body member sheet on which a body part of the decorative paper cup container of the present invention is formed, (a) is a plan view showing a plane, and (b) is an A-A 'of (a). It is sectional drawing which shows the cross section of a line.

  As shown in FIGS. 1 (a) and 1 (b), a body member sheet 1 on which a body portion of a decorative paper cup container of the present invention is molded is overlapped and bonded to one end of a cylinder 11 in a cylindrical shape. The aluminum vapor deposition layer 4 and the printing layer 7 are removed.

  Further, when the paper cup container is molded, the edge of the one adhesive part 11 is formed at the adhesive part inside the paper cup container. And since the end surface of the aluminum vapor deposition layer 4 or the printing layer 7 does not exist in the inner side adhesion part end surface of this paper cup container, the part cannot be visually observed.

  Further, the body of the decorative paper cup container of the present invention has a heat adhesive resin layer 3 formed on the inner surface of the paper base 2 as shown in FIG. And the aluminum vapor deposition layer 4 of the appropriate shape is formed on the outer side surface on the embossed hologram provided in the thermoplastic resin layer 5, and the decorating film is produced. Furthermore, the printing base resin layer 6 is formed on the outer surface of the thermoplastic resin layer 5, and the thermoplastic resin layer 8 is laminated via the printing layer 7.

  The paper base 2 is not particularly limited. For example, the paper base 2 is made of bleached kraft pulp (N-BKP) of coniferous wood or bleached kraft pulp (L-BKP) of hardwood wood. Alternatively, a cup base paper produced by a paper machine by making a circular net or a short net is preferable.

  Furthermore, the cup base paper can be blended with the above-mentioned bleached kraft pulp with non-wood pulp such as kenaf and bagasse. Moreover, the base paper which reproduced | regenerated the milk cartons can also be used.

The cup base paper is impregnated with an aqueous binder solution such as starch in a size press process installed in the middle of the paper making process, and further subjected to a calendar press process or the like. Then, by performing calendar pressing or the like, the smoothness of the surface is improved, and a paper excellent in printability is produced.

Further, the basis weight of the cup base paper size of the paper cup container to be molded, or is appropriately selected depending on the accommodated is accommodated or the like, ^{usually, 150g / m 2 ~420g / m} 2 position is preferred.

  Further, the paper base 2 is given water resistance or oil resistance depending on the stored items and distribution conditions stored in the paper cup container.

  In addition, as a method for imparting water resistance or oil resistance to the paper base material 2, there are a method performed when paper is processed and a method of impregnating or coating the paper.

  Further, when it is carried out during papermaking, the water-resistant agent added is usually an internally added water-resistant agent that is internally added to the pulp suspension before paper making. As a wet paper strength enhancer, urea-formaldehyde resin, melamine N-formaldehyde resin, epoxidized polyamide resin, polyethyleneimine resin, dialdehyde starch, glyoxalized polyacrylamide resin. The amount of the water-resistant agent added varies depending on the type of pulp to be used, the type of chemical, and the intended water resistance.

  In addition, as the secondary processing chemical for imparting water resistance to the paper-processed paper, those having a good balance of price or performance are used. For example, many waxes such as carnauba wax, paraffin wax, and polyethylene wax are used. In addition, polymer solutions or emulsions such as water-insoluble polyvinyl chloride, polyvinylidene chloride, polyvinyl acetate, ethylene-vinyl acetate copolymer, vinylidene chloride-vinyl acetate copolymer are used.

  Next, in order to impart oil resistance to the paper substrate 2, it is usually necessary to make the critical surface tension of the processed surface smaller than the surface tension of the oily substance. A chemical having such a function is referred to as an oil resistant agent, and a material using a fluorine compound such as an acrylic acid perphosphate or a phosphate ester is known as an oil resistant paper. In general, it is treated with a fluorinated oilproofing agent.

  In addition, when applying a water-proofing agent or an oil-proofing agent to the paper substrate 2, a coating machine such as a roll coater, an air knife coater, a metering bar coater, a fountain blade coater, a bevel blade coater, a short dwell coater or a curtain coater. Is used. The water-proofing agent or oil-proofing agent is applied to the inner side surface, the outer side surface, or both side surfaces of the paper substrate 2 using any appropriate coating machine.

  Moreover, as resin of the thermoadhesive resin layer 3 currently formed in the inner surface of the paper base material 2, low density polyethylene resin, medium density polyethylene resin, high density polyethylene resin, linear low density polyethylene resin, polypropylene resin, for example , Ethylene-vinyl acetate copolymer, ionomer resin, ethylene-acrylic acid copolymer, ethylene-ethyl acrylate copolymer, ethylene-methacrylic acid copolymer, ethylene-methyl methacrylate copolymer, ethylene-propylene copolymer Acid modification by modifying polymers, methylpentene polymer resin, polybutene polymer resin, polyolefin resin such as polyethylene or polypropylene with unsaturated carboxylic acid such as acrylic acid, methacrylic acid, maleic acid, maleic anhydride, fumaric acid, itaconic acid Polyolefin resin, polyvinyl acetate Le resins, poly (meth) acrylic resins, polyvinyl resins, can be used by selecting arbitrarily from other known resins.

Among the thermoplastic resins, low density polyethylene resin, medium density polyethylene resin, high density polyethylene resin, and linear low density polyethylene resin are often used. Further, depending on the size of the molded paper cup container, or the stored items or distribution conditions, etc., a low density polyethylene resin, a medium density polyethylene resin, a high density polyethylene resin, a polypropylene resin in addition to a linear low density polyethylene resin, More ethylene-vinyl acetate copolymer resins are used.

  When the decorative paper cup container requires barrier properties, a gas barrier resin layer is formed on the inner surface of the paper substrate 2 although not shown in the drawing. And as a resin film of a gas barrier resin layer, for example, ethylene-vinyl alcohol copolymer film, polyvinyl alcohol film, saponified ethylene-vinyl acetate copolymer film, polyethylene terephthalate film, polyamide film, polyvinyl alcohol film, various types A film in which polyvinylidene chloride is coated on the film can be used. Of course, it is laminated with the paper substrate 2.

  As a method of laminating, a laminating method used for manufacturing a normal packaging material, for example, a wet lamination method, a sandwich lamination method, a dry lamination method, a thermal lamination method, a solventless lamination method, an extrusion lamination method, a T-die Examples include an extrusion molding method, a T-die coextrusion lamination method, an inflation method, and a coextrusion inflation method.

  Further, when laminating, the resin film or the paper base material 2 is subjected to treatment such as corona treatment, ozone treatment or frame treatment in order to improve adhesion.

  Also, when laminating, for example, anchor coating agents such as polyethyleneimine, polybutadiene, and organic titanium, or laminates such as polyurethane, polyacrylic, polyester, epoxy, polyvinyl acetate, and cellulose A known anchor coat agent or adhesive, such as an adhesive, can be arbitrarily used.

  Further, when the gas barrier resin layer is formed on the inner side surface of the paper substrate 2, the heat adhesive resin layer is formed as the innermost layer. In general, the inner surface of the paper substrate 2 is laminated with, for example, a polyethylene (PE) single layer or polyethylene (PE) / ethylene / vinyl acetate copolymer (EVAC) / polyethylene (PE).

  Moreover, the thermoplastic resin layer 3 provided in the innermost inner layer of the paper substrate 2 is formed to a thickness of about 12 μm to 50 μm.

  Further, the inner edge to which the body member sheet 1 is bonded in a cylindrical shape is not shown in the figure depending on the stored items, the storage period / conditions, the distribution conditions, etc. However, after skiving (cutting) in advance, skive hemming processing for hemming (turning back) is performed.

Next, as the thermoplastic resin of the thermoplastic resin layer 5 on which the embossed hologram is formed, for example, a low density polyethylene resin, a medium density polyethylene resin, a high density polyethylene resin, a linear low density polyethylene resin, a polypropylene resin, ethylene-acetic acid Vinyl copolymer, ionomer resin, ethylene-acrylic acid copolymer, ethylene-ethyl acrylate copolymer, ethylene-methacrylic acid copolymer, ethylene-methyl methacrylate copolymer, ethylene-propylene copolymer, methyl Polyethylene resins such as pentene polymer resin, polybutene polymer resin, polyethylene or polypropylene modified with unsaturated carboxylic acid such as acrylic acid, methacrylic acid, maleic acid, maleic anhydride, fumaric acid, itaconic acid, Acid vinyl resins, poly (meth) acrylic resins, polyvinyl resins, by selecting arbitrarily from other known resins can be used.

  Of the above thermoplastic resins, low density polyethylene resins, medium density polyethylene resins, high density polyethylene resins, and linear low density polyethylene resins are often used.

  The printing base resin layer 6 to be bonded to the thermoplastic resin layer 5 is, for example, a low density polyethylene resin, a medium density polyethylene resin, a high density polyethylene resin, a linear low density polyethylene resin, a polypropylene resin, or ethylene-vinyl acetate. Copolymer, ionomer resin, ethylene-acrylic acid copolymer, ethylene-ethyl acrylate copolymer, ethylene-methacrylic acid copolymer, ethylene-methyl methacrylate copolymer, ethylene-propylene copolymer, methylpentene Polymer resins, polybutene polymer resins, polyolefin resins such as polyethylene or polypropylene modified with unsaturated carboxylic acid such as acrylic acid, methacrylic acid, maleic acid, maleic anhydride, fumaric acid, itaconic acid, polyacetic acid Vinyl resin Poly (meth) acrylic resins, polyvinyl resins, by selecting arbitrarily from other known resins can be used.

  Among the above thermoplastic resins, many thermoplastic resin films such as low density polyethylene resin, medium density polyethylene resin, high density polyethylene resin, and linear low density polyethylene resin are used. However, transparency, printability, and surface smoothness are used. Polyethylene terephthalate film or stretched polypropylene film is desirable from the viewpoints of good processability, heat resistance, etc. and low cost.

  The thickness of the polyethylene terephthalate film or stretched polypropylene film is appropriately set in the range of 9 to 100 μm. On the other hand, when the film thickness is 100 μm or more, the processability when the body member sheet 1 is formed is remarkably deteriorated.

  Next, the aluminum vapor deposition layer 4 is formed in an appropriate shape on an embossed hologram formed on the inner side surface of the thermoplastic resin layer 5 to produce a decorative film.

  The film thickness of the aluminum vapor deposition layer 4 is preferably about 50 to 4000 mm, and specifically about 100 to 1000 mm. And if it becomes 4000 mm or more, the processability at the time of shape | molding the trunk | drum member sheet | seat 1 will worsen. On the other hand, if it is 50 mm or less, the glossiness is lowered and the decorativeness is lacking.

  Next, the printing layer 7 formed on the outer surface of the printing base resin layer 6 bonded to the thermoplastic resin layer 5 performs normal printing of desired printing patterns such as characters, figures, patterns or symbols, etc. It can be formed by any printing method such as gravure printing, screen printing or flexographic printing. However, gravure printing is often used in terms of printing finish, processing suitability, processing speed, and the like.

  The ink used for the gravure printing can be an ink generally used for printing a packaging material.

  Examples of the ink resin include nitrocellulose (nitrified cotton), polyurethane resin, polyamide resin, vinyl chloride resin, acrylic resin, vinyl acetate, and a resin obtained by mixing these.

Next, as the thermoplastic resin of the outermost thermoplastic resin layer 8, for example, low density polyethylene resin, medium density polyethylene resin, high density polyethylene resin, linear low density polyethylene resin, polypropylene resin, ethylene-vinyl acetate copolymer Coalescence, ionomer resin, ethylene
Acrylic acid copolymer, ethylene-ethyl acrylate copolymer, ethylene-methacrylic acid copolymer, ethylene-methyl methacrylate copolymer, ethylene-propylene copolymer, methylpentene polymer resin, polybutene polymer resin, polyethylene or Polyolefin resins such as polypropylene modified with unsaturated carboxylic acids such as acrylic acid, methacrylic acid, maleic acid, maleic anhydride, fumaric acid, itaconic acid, polyvinyl acetate resins, poly (meth) acrylic Resin, polyvinyl resin and the like are used. Among these thermoplastic resins, a low density polyethylene resin, a medium density polyethylene resin, a high density polyethylene resin, a linear low density polyethylene resin, and other known resins can be arbitrarily selected and used.

  Among the thermoplastic resins, low density polyethylene resin, medium density polyethylene resin, high density polyethylene resin, and linear low density polyethylene resin are often used. Further, depending on the size of the molded paper cup container, or the stored items or distribution conditions, etc., a low density polyethylene resin, a medium density polyethylene resin, a high density polyethylene resin, a polypropylene resin in addition to a linear low density polyethylene resin, More ethylene-vinyl acetate copolymer resin is used.

  Further, when the outermost thermoplastic resin layer 8 is formed mainly for protecting the printing layer 7, OP varnish (overprint varnish) can be used instead of the thermoplastic resin 8.

  The above OP varnish is applied with a gravure printing machine or a flexographic printing machine, but is a roll coater, air knife coater, gravure coater, metering bar coater, fountain blade coater, bevel blade coater, short dwell. A coating machine such as a coater or curtain coater can also be used.

  The OP varnish resin used includes, as with the ink, nitrified cotton, polyurethane resin, polyamide resin, vinyl chloride resin, acrylic resin, and a resin obtained by mixing these. From the point of good friction resistance and heat resistance, it is preferable to use nitrified cotton resin in the one-pack type, and in order to give gloss, a two-pack reaction type mainly composed of urethane resin is used. It is preferable to do.

  Next, FIG. 2 is a schematic view showing an outline of an embodiment of an embossed hologram film, and FIG. 3 is a schematic view showing an outline of an embodiment for producing an embossed hologram film. FIG. 4 is a schematic view showing an outline of an embodiment in which an embossed hologram film is produced.

  As shown in FIG. 2, the embossed hologram film 10 is printed on a printing substrate through a thermoplastic resin layer 5 and an anchor coating agent layer 9 on which an embossed hologram 12 (formed with unevenness of several microns is formed). A material resin layer 6 is laminated.

  The lamination of the printing base resin layer 6 and the thermoplastic resin layer 5 is performed by a known single-type extrusion laminator machine 36 as shown in FIG. Then, as shown in FIG. 3 or FIG. 4, the embossed hologram 12 is formed by the embossed hologram stamper 37 provided on the outer peripheral surface of the cooling roll 15 on the surface of the thermoplastic resin layer 5 simultaneously with the lamination.

Further, the single-type press laminating machine 36, in which the printing base resin layer 6 and the thermoplastic resin layer 5 are laminated to form an embossed hologram film, unwinds the printing base resin film 35 as shown in FIG. Part 16, anchor application part 29 for applying the anchor agent, drying part 22 for drying the applied anchor agent, cooling roll part 14 provided with press roll 13 and cooling roll 15, cooling An extruder 42 and a T die 41 for melting and lowering the thermoplastic resin to be laminated with the printing substrate resin film 35 fed out above the roll unit 14 and forming an embossed hologram are formed and cooled simultaneously with the lamination. A winding unit 17 for winding the embossed hologram film 10 is provided.

  Also, as shown in FIG. 3, the printing substrate resin film 35 fed out from the unwinding portion is provided with an anchor agent or the like and further dried, and then provided above the cooling roll portion 14. The thermoplastic resin melted from the T-die 41 of the extruder 42 descends in the direction of the cooling roll 14 and is laminated. At the same time, the embossed hologram 12 is formed on the surface of the thermoplastic resin layer 5 by the cooling roll 15 in which the press roll 13 and the embossed hologram stamper 37 are formed on the outer peripheral surface. Produced.

  The embossed hologram 12 formed on the surface of the thermoplastic resin layer 5 can be formed on the entire surface or a part of the thermoplastic resin layer 5.

  Next, FIG. 5 shows an embodiment in which a decorative film is produced by forming aluminum vapor deposition on the inner surface of an embossed hologram film provided with an embossed hologram, (a) is a plan view showing a plane, b) is a sectional view showing a section taken along line AA 'in FIG.

  As shown in FIG. 5 (a) or (b), the web-like embossed hologram film 10 is laminated with a paper base material or the like to form a body member sheet, and both end edges are overlapped and bonded in a cylindrical shape. And the decoration film is produced by forming the vapor deposition layer 4 on the embossed hologram surface provided inside the thermoplastic resin layer 5 except the part used as the one adhesion part 11. FIG.

  Further, in the adhesive portion 11 where the vapor deposition layer 4 is not formed, the vapor deposition layer is pulled out in a stripe shape (strip shape) although not shown in the drawing in parallel with the end face of the web-like embossed hologram film 10.

  The vapor deposition layer 4 formed on the embossed hologram surface is formed using a known vapor deposition machine. The striped (band-shaped) vapor deposition layer 4 is removed by a masking method in which a mask is provided in the vapor deposition processing machine.

  The above-described masking method is an inexpensive method by which the vapor deposition layer 4 can be removed in a striped (band-like) portion at the adhesive portion 11 when the body-like sheet is formed in the flow direction of the web-like embossed hologram film 10. Further, when the decorative film in which the vapor-deposited layer 4 having an appropriate shape is formed on the web-like embossed hologram film 10 is laminated with a paper base material or the like, both end edges of the body member sheet are overlapped in a cylindrical shape and bonded. In addition, since there is no end face of the vapor deposition layer 4 on the inner end face of the bonding portion 11, the portion cannot be visually observed, and therefore the appearance is good, and the bonding portion has a high bonding strength and maintains a stable bonding force. .

  Further, since the paper cup container does not have the end face of the vapor deposition layer 4 on the inner end face, the portion is not visually observed. Therefore, in the inner surface foreign matter inspection apparatus or the like used for inspection work, the end face of the vapor deposition layer 4 is There is no problem of being mistaken and discharged as a foreign matter-contaminated paper cup container.

  Further, since the paper cup container does not have the end face of the vapor deposition layer on the inner end face, there is no adverse effect such as contamination of the stored item when the stored item is stored.

Further, the embossed hologram film 10 is not shown in the drawing after the vapor deposition layer 4 is formed or before it is formed, but on the outer surface of the printing substrate resin layer 6 of the embossed hologram film 10 at an appropriate place. In addition, a print layer of a picture, a figure, a symbol, or a character having an appropriate shape is formed. Then, although not shown in the drawing, a thermoplastic resin layer or the like is formed on the upper surface of the print layer.

  Next, FIG. 6 shows another embodiment in which a decorative film is produced by forming a vapor deposition layer on the embossed hologram surface of an embossed embossed hologram film, (a) is a plan view showing a plane, b) is a sectional view showing a section taken along line AA 'in FIG.

  As shown in FIG. 6A or 6B, the web-like embossed hologram film 10 is laminated with a paper base material or the like to form a body member sheet, and both end edges are overlapped and bonded in a cylindrical shape. And the vapor deposition layer 4 is formed on the embossed hologram surface provided inside the thermoplastic resin layer 5 except the part used as the one adhesion part 11, and a decorating film is produced. Further, on the outer surface of the printing substrate resin layer 6 of the embossed hologram film 10, a printing layer of a picture, a figure, a symbol, a character, or the like having an appropriate shape is formed at an appropriate place (not shown). Further, a thermoplastic resin layer or the like is formed on the upper side surface of the printing layer.

  When the above-described body member sheet is formed, the portion of the vapor deposition layer 4 that becomes the bonding portion 11 is removed by an acid, alkali removal process (etching method), a water washing process, or the like.

  In the above-described acid and alkali removal processing, the vapor deposition layer 4 is formed on the embossed hologram surface of the embossed hologram film 10 as shown in FIG. Next, as shown in FIG. 7 (b), the printing layer 43 is formed by printing or the like with ink or the like on the entire outer surface of the vapor deposition layer except the portion that becomes the bonding portion 11 when the body member sheet 1 is formed. To do. Further, as shown in FIG. 7 (c), the vapor deposition layer 4 on which the printing layer 43 is not formed is vapor-deposited in a portion that becomes the adhesion portion 11 when immersed in a 5% sodium hydroxide or hydrofluoric acid solution. Layer 4 is removed by dissolution removal. And when it becomes the trunk | drum member sheet | seat 1, the trunk | drum member sheet | seat 1 without the vapor deposition layer 4 is obtained on the embossed hologram surface of the embossed hologram film 10 of the part used as the adhesion part 11. FIG.

  Further, in the water washing process, the celite primer 44 is attached on the embossed hologram surface of the portion that becomes the bonding portion 11 when the body member sheet is formed (shown in FIG. 8a). And after attaching the celite primer 44, a vapor deposition process is performed on the embossed hologram surface, and the vapor deposition layer 4 is formed (shown in FIG. 8b). Furthermore, the vapor deposition layer 4 is washed with water, and the vapor deposition layer on the celite primer 44 is removed (shown in FIG. 8c). And the decoration film from which the vapor deposition layer of the part used as the adhesion part 11 is extracted is obtained.

  In addition, the vapor deposition layer 4 formed on the embossed hologram surface is produced by removing the portion that becomes the bonding portion 11 when it becomes a body member sheet by the above method. And when laminated with a paper base material, both end edges of the body member sheet are overlapped, and when bonded in a cylindrical shape, there is no end face of the vapor deposition layer on the inner end face of the bonded part, so that part cannot be visually observed, Therefore, it looks good.

  Next, FIG. 9 is a schematic view showing an outline of an embodiment of a paper cup molding machine for molding the decorative paper cup container of the present invention. As shown in FIG. 9, the decorative paper cup container of the present invention may be a paper cup molding machine in which the body member is formed from a web-like sheet or a paper cup molding machine in which the body member is formed from a blank sheet although not shown in the figure. You can select and use.

  The paper cup molding machine for molding from a web-like sheet is formed from an unwinding part 21, a punching part 23, a cup molding part 30, a bottom member molding part 31, and a top curl molding part 32 as shown in FIG. ing. Then, the body member web-like sheet is fed out from the unwinding part 21, punched out into the body member sheet 24 by the punching part 23, and conveyed to the cup forming part 30 by the gripper claw 26 provided on the turntable 25.

  The body member sheet 24 conveyed to the cup forming unit 30 is wound around the mandrel mold 28 by the wing of the winding wing unit 33. Further, when the body member sheet 24 is wound around the mandrel mold 28, the bottom material 27 in which the bottom member 39 is formed in an inverted dish shape by the bottom member molding portion 31 is adsorbed to the tip of the mandrel mold 28. Then, after the body member 24 and the bottom member 27 are bonded together, they are inserted into the tray 40 of the top curl molding portion 32 and the upper edge of the opening is curled outwardly and discharged to the discharge portion 38.

The basis weight of the paper of the bottom member 39 is appropriately selected depending on the size of the paper cup to be molded, or the stored items, distribution conditions, storage method, and the like, but is usually 150 g / m ^{2 to} 550 g / m ^2. The position is also good. Further, the bottom member 39 has a thermoplastic resin layer formed on the front side or both sides of the paper.

  Examples of the thermoplastic resin of the thermoplastic resin layer include, for example, a low density polyethylene resin, a medium density polyethylene resin, a high density polyethylene resin, a linear low density polyethylene resin, a polypropylene resin, an ethylene-vinyl acetate copolymer, Ionomer resin, ethylene-acrylic acid copolymer, ethylene-ethyl acrylate copolymer, ethylene-methacrylic acid copolymer, ethylene-methyl methacrylate copolymer, ethylene-propylene copolymer, methylpentene polymer resin, polybutene Polymer-modified resin, polyolefin-based resin such as polyethylene or polypropylene, acid-modified polyolefin resin modified by unsaturated carboxylic acid such as acrylic acid, methacrylic acid, maleic acid, maleic anhydride, fumaric acid, itaconic acid, polyvinyl acetate resin, Poly Meth) acrylic resins, polyvinyl resins, by selecting arbitrarily from other known resins can be used.

  Among the above thermoplastic resins, low density polyethylene resin, medium density polyethylene resin, high density polyethylene resin, linear low density polyethylene resin and the like are preferable because of their excellent moldability and adhesiveness.

  Further, the thickness of the thermoplastic resin layer formed on the front side surface or both side surfaces of the bottom member 39 is arbitrary on both side surfaces, but is usually about 10 to 100 μm, more preferably about 20 to 60 μm. Is desirable.

  The decorative paper cup container of the present invention stores a stored item and can be used as a packaging container having an excellent store display effect. It can also be used in a wide variety of fields, such as indoor and outdoor decorations, such as decorative paper cylinders such as fresh flowers, artificial flowers, and flags, etc.

The trunk | drum member sheet | seat by which the trunk | drum of the decorative paper cup container of this invention is shape | molded is shown, (a) is a top view which shows a plane, (b) is a cross section which shows the cross section of the AA 'line of (a). FIG. It is the schematic which shows the outline of one Example of an embossed hologram film. It is the schematic which shows the outline of one Example which produces an embossed hologram film. It is the schematic which shows the outline of one Example with which an embossed hologram film is produced. An embodiment in which a decorative film is produced by forming a vapor deposition layer on an embossed hologram surface of an embossed embossed hologram film is shown, (a) is a plan view showing a plane, and (b) is an A in (a). It is sectional drawing which shows the cross section of -A 'line. Another embodiment in which a decorative film is produced by forming a vapor deposition layer on the embossed hologram surface of the embossed embossed hologram film is shown, (a) is a plan view showing a plane, and (b) is (a). It is sectional drawing which shows the cross section of AA 'line. An outline of an acid and alkali removal process (etching method) is shown. (A) is a schematic cross-sectional view of a state where a vapor deposition layer is formed on the entire embossed hologram surface of an embossed hologram film. It is the cross-sectional schematic of the state in which the ink is formed on the vapor deposition layer, (c) is a schematic cross-sectional view of the state in which the vapor deposition layer is not formed in the part used as an adhesion part. The outline of the washing-out process is shown. (A) is a schematic cross-sectional view of a state in which a celite primer is attached on an embossed hologram surface of an embossed hologram film, and (b) is an embossed hologram surface and a celite primer. It is the cross-sectional schematic of the state in which the vapor deposition layer was formed on, (c) is a cross-sectional schematic of the state in which the vapor deposition layer is not formed in the part used as an adhesion part. It is the schematic which shows the outline of one Example of the paper cup molding machine with which the decorative paper cup container of this invention is shape | molded. The trunk | drum member of the conventional decorative paper cup container is shown, (a) is a plane explanatory drawing, (b) is the AA 'sectional view explanatory drawing of (a). It is the schematic which shows the outline of the trunk | drum member of the conventional cosmetic paper cup. It is the schematic which shows the outline of the trunk | drum member of the foaming paper cup which has the conventional decorating property. It is a schematic sectional drawing of the laminated material for paper containers which improved the design properties, such as the conventional surface glossiness. An outline of a conventional strong glossy paper cup is shown, (a) is a perspective view of a strong glossy paper cup container, and (b) is an enlarged cross-sectional explanatory view of part A.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Body member sheet 2 ... Paper base material 3 ... Thermal adhesive resin layer 4 ... Deposition layer 5 ... Thermoplastic resin layer 6 ... Printing base material resin layer 7 ... Printing layer 8 ... Thermoplastic resin Layer 9 ... Anchor coating agent layer 10 ... Embossed hologram film 11 ... Adhesive part 12 ... Embossed hologram 13 ... Press roll 14 ... Cooling roll part 15 ... Cooling roll 16 ... Unwinding part 17 ... Winding Take-up part 21 ...... Unwinding part 22 ...... Drying part 23 ...... Punching part 24 ...... Body member sheet 25 ...... Turntable 26 …… Claw claw 27 …… Bottom member formed in an inverted dish shape 28 …… Mandrel 29 …… Anchor coating part 30 …… Cup molding part 31 …… Bottom member molding part 32 …… Top curl molding part 34 …… Wound wing part 35 …… Print substrate resin film 36 …… Single stamping Laminating machine 37 …… Embossed hologram stamper 38 …… Discharge part 39 …… Bottom member 40 …… Tray 41 …… T die 42 …… Extruder 43 …… Print layer 44 …… Sealite primer

Claims (2)

A paper cup composed of a cylindrical body and a bottom part, which are bonded by overlapping the both ends of the body member sheet in a cylindrical shape,
A decorative film formed in an appropriate shape by aluminum deposition on the inner surface of the embossed hologram film provided with the embossed hologram is bonded to the body member sheet,
The decorative paper cup container is characterized in that the aluminum vapor deposition is not provided on at least the inner adhesive end face of the paper cup container in which both end edges of the body member sheet are bonded in a cylindrical shape.   2. The decorative paper according to claim 1, wherein the portion where the aluminum vapor deposition is not provided is provided by any one of a masking method, an acid-alkali removal method, and a water-washing method. Cup container.

Images