JP5453879B2 - Laminated body and tube container using the same - Google Patents

Description

  The present invention relates to a laminated body and a tube container manufactured by the laminated body, and provides a laminated body that three-dimensionally represents characters and designs printed on the surface, and a tube container having high design using the laminated body. To do.

  Conventionally, a laminated tube container using a laminated material for a body portion is used as a container containing toothpaste and foods that require barrier properties. These containers are manufactured by joining a molded part of a plastic material serving as a shoulder part and a spout to a body part obtained by forming a material obtained by laminating various plastic films and aluminum foils into a tube shape.

  The laminated material constituting the body of the tube container described in the example of Patent Document 1 is a surface printed layer, a 50 μm outermost synthetic resin layer, a 12 μm biaxially stretched synthetic resin film, a 20 μm LDPE layer, and a 70 μm titanium. It is composed of a pigmented colored synthetic resin layer, a 30 μm ethylene acrylic acid copolymer layer, a 15 μm soft AL foil, a 30 μm ethylene acrylic acid copolymer resin layer, and a 50 μm innermost synthetic resin layer. A tube container is manufactured by joining a removable cap, a spout portion, and a shoulder portion to the barrel portion.

  As another conventional tube container, Patent Document 2 describes a tube container having a design feeling by producing a desired metallic feeling by mixing a metallic luster of an aluminum foil with other colors. The tube container is made of a plastic laminated sheet, the plastic laminated sheet is rolled up, the end portions on both sides are overlapped, welded and joined into a tube shape, and then the upper surface of the aluminum foil layer, which is the outermost surface of the tube body, is formed. A transparent or semi-transparent polyethylene resin extrusion coat layer colored in a desired color is coated, and characters and designs are printed thereon.

JP-A-8-230112 Japanese Patent Publication 1-332110

In recent years, in the cosmetics and toiletries fields, products without additives such as preservatives and products that require light-shielding properties have been increasing. As containers for storing these products, tube containers having a barrier property and a high design property are being used. is necessary.
However, the laminated material constituting the body of the tube container described in Patent Document 1 is based on white in which the titanium pigment and the coloring material are expressed because the colored synthetic resin layer added with the titanium pigment serves as a concealing layer. Even when the color becomes the ground color of the container body and characters and designs are printed, it is difficult to say that the design is high when the tube container is manufactured using the laminated material.
On the other hand, when printing the ground color in the desired color pattern, the ground color is printed on the outermost surface of the laminated material as the surface print layer, but printing cannot be performed on the mimetic portion where the transport roller contacts when passing through the printing machine. Or, when the cylinder is pasted to form the body, the outermost synthetic resin layer and the innermost synthetic resin layer on both ends of the laminated material are welded and bonded together, so the surface of the bonded area is printed with ground color. Can not be applied, and printing omission occurs in the mimetic part and the bonded part, and the design is deteriorated when a tube container is produced using a laminated material.

  The ground color of the tube container body described in Patent Document 2 is determined only by the color colored on the polyethylene resin, and it is difficult to give a decorative effect to the tube container by a gradation pattern or a pattern. In addition to the step of producing a laminated sheet and the step of forming a tubular body using the laminated sheet, a step of coating and forming an extruded coating layer of polyethylene resin on the outer peripheral surface of the tubular body is required. As described above, it takes time to coat and form the extruded coating layer of the polyethylene resin with the tubular body, and this method reduces the productivity of the tube container.

In order to solve the above-mentioned problems, the present invention has been intensively studied, and as a result, the invention described in claim 1 includes at least a three-dimensional decorative resin layer made of a polyolefin resin having a thickness in the range of 100 μm to 300 μm, One of biaxially stretched PP (polypropylene) , PET (polyethylene terephthalate) , ON (stretched nylon) , EVOH (ethylene-vinyl alcohol copolymer) having a thickness in the range of 10 to 50 μm from the three-dimensional decorative resin layer side. A substrate of two resin films or sheets, a translucent intermediate printing layer by gravure printing on the substrate, a surface printing projection layer formed in the order of a metal foil layer, and a polyolefin resin having heat sealability A laminated body formed by sequentially laminating an inner surface resin layer, wherein a character and a pattern are printed on the surface of the three-dimensional decorative resin layer. It is related with the laminated body.
The invention according to claim 2, at least, a three-dimensional decorative resin layer comprising a polyolefin resin in a range of thickness of 100 m to 300 m, stereo decoration from the resin layer side, the thickness of 12~20μm range of the polyolefin resin, (Meth) acrylic resin, polyvinyl chloride resin, polystyrene resin, polyvinylidene chloride resin, saponified ethylene-vinyl acetate copolymer, polyvinyl alcohol, polycarbonate resin, fluorine resin, polyvinyl acetate resin, An inorganic oxide vapor deposition film layer, which is a film or sheet of a resin in which an inorganic oxide vapor deposition thin film is formed on a film substrate of one of acetal resin, polyester resin, and polyamide resin, and the inorganic oxidation Table formed in order of opaque intermediate printing layer by gravure printing on the vapor deposition surface of the product vapor deposition film layer A laminate in which a print projection layer and an inner surface resin layer made of a heat-sealing polyolefin-based resin are sequentially laminated, and characters and designs are printed on the surface of the three-dimensional decorative resin layer It is related with the laminated body.
According to a third aspect of the present invention, in the laminate according to the first or second aspect, a resin film or a heat-sealable film is provided on a surface different from the surface of the three-dimensional decorative resin layer on the surface print projection layer side. A surface resin layer made of a sheet is formed, and characters and designs are printed on the surface resin layer.
The invention described in claim 4 is welded so that the both ends of the laminate of claims 1 to 3 having a quadrilateral shape are overlapped so that the character and picture printing are outside and the inner resin layer is inside. The present invention relates to a tube container that is manufactured by joining a body portion of a cylindrical tube container with a head portion including a shoulder portion and a mouth portion.

ADVANTAGE OF THE INVENTION According to this invention, the laminated body which expresses the character and pattern printed on the surface in three dimensions can be provided. When a tube container is produced using the laminate of the present invention, characters and designs can be produced in three dimensions when viewed from the outside of the tube container, and a tube container having high design properties can be provided. The background color of the tube container body can be changed to various patterns such as a gradation pattern, and a variety of decorative effects can be exhibited. Furthermore, when metal foil is used, a metallic feeling other than the metal foil itself can appear by mixing the brightness of the metal foil and the color of the intermediate printing layer, giving the tube container a variety of decorative effects. be able to.
In addition, in order to print the ground color of the tube container body with an intermediate printing layer that is not on the surface of the laminate, in the bonding portion when the mimetic portion when passing through a printing machine and the laminate are bonded in a cylindrical shape However, no printing omissions occur. In addition, the tube body can be formed simply by laminating the laminate with characters and designs printed on the surface in a cylindrical shape, and no new processing is required after pasting, resulting in high productivity, low cost, and high cost. A designable tube container can be manufactured.
When a packaging container such as a pouch is produced using the laminate of the present invention, characters and designs printed on the surface can be produced in a three-dimensional manner and high design properties can be imparted.

It is the laminated body of this invention. It is the laminated body of this invention. It is the tube container of this invention.

The laminated body concerning this invention, the tube container using the laminated body, and the manufacturing method of a tube container are demonstrated in detail by drawing etc. below.
FIG. 1A shows a configuration of an example of a laminate according to the present invention. 3 is composed of a three-dimensional decorative resin layer 3, a surface printed projection layer 4, and an inner surface resin layer 5 in order from the outer side when the tube container 16 of FIG. 3 is finally produced. The substrate 6, the transparent and / or translucent intermediate printing layer 7, and the metal foil layer 8 are sequentially formed from the side in contact with the resin layer 3. Further, as shown in FIG. 1B, a surface resin layer 11 may be provided on the three-dimensional decorative resin layer 3. The three-dimensional decorative resin layer 3 or the surface resin layer 11 is subjected to surface printing 2 such as characters and patterns.
Fig.2 (a) shows another embodiment of the laminated body which concerns on this invention. 3 is composed of a three-dimensional decorative resin layer 3, a surface printed projection layer 41, and an inner surface resin layer 5 in order from the outer side when the tube container 16 of FIG. 3 is finally produced. In order from the side in contact with the resin layer 3, an inorganic oxide vapor-deposited film 9 and an opaque intermediate printing layer 10 are formed. Moreover, you may provide the surface resin layer 11 on the three-dimensional decorative resin layer 3, as shown in FIG.2 (b). Similar to the laminate of FIG. 1, the three-dimensional decorative resin layer 3 or the surface resin layer 11 is subjected to surface printing 2 such as letters and pictures.

The laminate of the present invention shown in FIGS. 1 (a) and 1 (b) will be specifically described.
The inner surface resin layer may be any material that can be melted by heat and fused with the three-dimensional decorative resin layer or the surface resin layer, for example, low density polyethylene, medium density polyethylene, high density polyethylene, linear (Linear) Low density polyethylene, polypropylene, ethylene-vinyl acetate copolymer, ionomer resin, ethylene-ethyl acrylate copolymer, ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer, ethylene-propylene Acids obtained by modifying polyolefin resins such as copolymers, methylpentene polymer, polyethylene or polypropylene with unsaturated carboxylic acids such as acrylic acid, methacrylic acid, maleic acid, maleic anhydride, fumaric acid, itaconic acid, etc. Modified polyolefin resin, polyvinyl acetate resin, polyester tree , Using one or resin and the film or sheet consisting of more such polystyrene resin, it is possible to form the inner surface resin layer. In the present invention, it is particularly preferable to use linear low density polyethylene among the resins as described above. Since linear low density polyethylene has adhesiveness, it has an advantage of improving impact resistance with less propagation of breakage. Further, since the inner surface resin layer is always in contact with the contents, it is also effective for preventing deterioration of environmental stress cracking resistance.
The thickness of the inner surface resin layer is preferably 100 to 210 μm.

  The surface printing projection layer is composed of a substrate, a transparent and / or translucent intermediate printing layer, and a metal foil layer.

The intermediate printing layer is formed as a transparent and / or translucent layer by printing a desired color as the background color of the container on one surface of the substrate. As the substrate, a resin film or sheet such as biaxially stretched PP (polypropylene) , PET (polyethylene terephthalate) , ON (stretched nylon) , EVOH (ethylene-vinyl alcohol copolymer) can be used, and the thickness is 10 to 10. 50 μm is preferred.

  The intermediate printing layer is the ground color of the container, and may be a uniform color pattern as long as it is transparent and / or translucent, and may be formed from any color and pattern such as a gradation pattern composed of shades of color. it can. By mixing the color pattern of the intermediate printing layer and the brightness of the metal foil or the like, a metallic feeling other than the metal foil can be revealed, and a varied decorative effect can be imparted to the container. The thickness of the intermediate printing layer can be appropriately set to such an extent that a metallic feeling and transparency are maintained by mixing with the metal foil.

  In addition, since the ground color of the container is printed with the intermediate printing layer, the ground color printing is not the outermost surface, and the laminated body in which the ground color is also printed on the bonding portion at both ends of the laminate and the laminated body to pass through the printing machine Even if the laminated body is attached to a cylinder to form a body part, a tube container body part without printing omission can be produced.

  A metal foil such as an aluminum foil can be used as the metal foil layer. The thickness of the metal foil layer is preferably 9 to 15 μm. By providing a metal foil layer, in addition to the above-described design properties, it is possible to impart barrier properties against oxygen gas, water vapor, etc., long-term preservation of various fragrances contained in the contents, light shielding properties against sunlight, etc. to the container. it can. Moreover, the metal vapor deposition film which has metal vapor deposition thin films, such as aluminum, can also be used.

As the three-dimensional decorative resin layer, for example, a resin film or sheet such as low density polyethylene, medium density polyethylene, high density polyethylene, and linear (linear) low density polyethylene can be used. The thickness of the three-dimensional decorative resin layer is preferably 100 to 300 μm. By providing a three-dimensional decorative resin layer between the surface printing and the surface printing projection layer, the shadow of the surface printing characters and patterns is projected on the metal foil layer surface in the surface printing projection layer and seen from the outside of the container. In this case, characters, pictures, and the like overlap with the projected shadows, resulting in an excellent decorative effect such that the consumer can see them three-dimensionally. When the three-dimensional decorative resin layer is 100 μm or less, the deviation between the surface-printed characters and patterns and the projected shadow is small, and sufficient three-dimensional decorative properties do not occur. On the other hand, when the thickness is 300 μm or more, the surface printing and the metal foil layer are too far apart, and the shadows of characters and designs projected on the metal foil surface become thin, so that the characters and designs cannot be displayed sufficiently in three dimensions.
When the surface resin layer is provided on the three-dimensional decorative resin layer, the total thickness of the three-dimensional decorative resin layer and the surface resin layer is preferably 100 to 300 μm. Therefore, the thickness of the three-dimensional decorative resin layer is 100 to 260 μm. Is more desirable.

  The surface printing is formed by printing characters, patterns, etc. on the three-dimensional decorative resin layer. As a printing method, a normal printing method such as a letterpress printing method, a flexographic printing method, or a silk printing method can be used. Among them, the letterpress printing method is low in manufacturing cost, and the printed characters and patterns are beautiful. This is preferable.

A surface resin layer may be provided on the three-dimensional decorative resin layer. As a material constituting the surface resin layer, it is desirable to use a resin having heat sealability that can form surface printing by printing. Specifically, examples of the resin having heat sealing property include low density polyethylene, medium density polyethylene, high density polyethylene, linear (linear) low density polyethylene, polypropylene, ethylene-vinyl acetate copolymer. Polymer, ionomer resin, ethylene-acrylic acid copolymer, ethylene-ethyl acrylate copolymer, ethylene-methacrylic acid copolymer, ethylene-methyl methacrylate copolymer, ethylene-propylene copolymer, methylpentene polymer -Polybutene polymer, ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer, acid-modified polyolefin resin obtained by acid-modifying polyolefin resin such as polyethylene or polypropylene using unsaturated carboxylic acid, polyacetic acid Vinyl resin, poly (meth) acrylic resin, polychlorinated Sulfonyl resin, the resin of the other, or the like can be used. The above resin having heat sealability can be used, for example, in the form of a film or sheet or a coating film made of a composition containing the resin, and the thickness of the surface resin layer. Is preferably 20 to 40 μm.
By providing the surface resin layer, the printability when performing surface printing is improved. Moreover, since the slipperiness of the surface of a laminated body becomes favorable, when supplying a container to a filling machine or discharging from a filling machine, there is no problem of being slippery and clogging, and the suitability of the filling machine is improved.

  The manufacturing method of the laminated body of this invention shown to Fig.1 (a), (b) is demonstrated. First, a transparent and / or translucent intermediate printing layer is formed on one surface of the base material of the surface printing projection layer by printing a desired color, which is the background color of the container, uniformly or in a gradation pattern or the like. As the printing method, a normal printing method can be used, and among them, by using the gravure printing method, it is possible to print various patterns such as a gradation pattern by color shading, and the design is improved.

Next, on the intermediate printed layer surface, a metal foil is obtained by a wet lamination method, a dry lamination method, a solventless dry lamination method, an extrusion lamination method, a T-die coextrusion molding method, and a coextrusion lamination method. Are bonded together to form a surface printing projection layer comprising a substrate, a transparent and / or translucent intermediate printing layer, and a metal foil layer.
Next, a resin film is applied to the metal foil layer side of the surface printing projection layer by wet lamination method, dry lamination method, solventless dry lamination method, extrusion lamination method, T-die coextrusion molding method, coextrusion method. The inner surface resin layer is formed by laminating by lamination or laminating resin layers by melt extrusion. Next, a three-dimensional decorative resin layer is formed on the base material side which is the other surface of the surface printing projection layer. For the formation of the three-dimensional decorative resin layer, the above-described method for forming the inner surface resin layer can be used.

In addition, when performing the above-mentioned lamination, if necessary, pretreatment such as corona treatment and ozone treatment can be applied to the film. For example, isocyanate (urethane), polyethyleneimine , Polybutadiene, organic titanium and other anchor coating agents, or polyurethane, polyacrylic, polyester, epoxy, polyvinyl acetate, cellulose, and other laminating adhesives An anchor coating agent, an adhesive, etc. can be arbitrarily used.
Examples of the adhesive resin for extrusion lamination include polyethylene, ethylene-α / olefin copolymer, polypropylene, polybutene, polyisobutene, poisobutylene, polybutadiene, polyisoprene, ethylene-methacrylic acid copolymer, or ethylene. -Copolymers of ethylene and unsaturated carboxylic acids such as acrylic acid copolymers, or acid-modified polyolefin resins modified with them, ethylene-ethyl acrylate copolymers, ionomer resins, ethylene-vinyl acetate copolymer Coalescence, etc. can be used. Further, in the present invention, as the adhesive constituting the adhesive layer when dry laminating, specifically, a two-component curable urethane adhesive or a polyester urethane adhesive used in dry laminating or the like Polyether urethane adhesives, acrylic adhesives, polyester adhesives, polyamide adhesives, polyvinyl acetate adhesives, epoxy adhesives, rubber adhesives, and the like can be used.

  Furthermore, letters, designs, etc. are printed on the three-dimensional decorative resin layer by letterpress printing, flexographic printing, or silk printing. When a surface resin layer is provided on the three-dimensional decorative resin layer, the resin is extruded on the three-dimensional decorative resin layer by a melt extrusion method or the like to form a surface resin layer and printed on the surface resin layer.

  By the above method, the laminate of the present invention shown in FIGS. 1A and 1B is manufactured, and the three-dimensional decorative resin layer 3 or the surface resin layer 11 at both ends is disposed so that the surface printing side of the laminate is on the outside. And the inner surface resin layer 5 are overlapped, and the opposite surface is welded by heat sealing, high frequency sealing or the like to form the cylindrical body 12, and further, for example, a high density is formed in one opening of the cylindrical body 12. Polyethylene or the like is molded by injection molding or other molding methods, and a head portion 15 including a shoulder portion 13 and a mouth portion 14 is provided to produce the tube container 16 of the present invention.

  When the tube container 16 of the present invention produced using the laminate shown in FIGS. 1A and 1B is viewed from the outside of the container, the characters of the surface print 2 and the shadow of the pattern are in the surface print projection layer 4. It is projected on the surface of the metal foil layer 8 and has an excellent decorative effect such that characters and patterns on the surface appear to rise three-dimensionally to the consumer.

The laminated body of the present invention shown in FIGS. 2A and 2B will be specifically described.
As the inner surface resin layer 5 and the three-dimensional decorative resin layer 3 shown in FIG. 2A, the same ones as those used for the laminate shown in FIG. 1A can be used. Moreover, the laminated body shown in FIG.2 (b) provides the surface resin layer 11 on the three-dimensional decorative resin layer 3 similarly to the laminated body shown in FIG.1 (b).

  The surface printing projection layer 41 in FIG. 2 is composed of an inorganic oxide vapor deposition film 9 in which an inorganic oxide vapor deposition film is formed on a substrate, and an opaque intermediate printing layer 10. The base material side is in contact with the three-dimensional decorative resin layer 3, and the vapor deposition film side is in contact with the intermediate printing layer 10.

  As an inorganic oxide vapor deposition film layer, a barrier film against oxygen gas, water vapor, etc., a light-shielding film against sunlight, etc., a film having an aroma retaining property against contents, or the like can be used. Specifically, as the inorganic oxide vapor-deposited film, a resin film or sheet having a vapor-deposited thin film of an inorganic oxide such as silicon oxide or aluminum oxide can be used. For example, physical vapor deposition method (Physical Vapor Deposition method, PVD method) such as vacuum deposition method, sputtering method, ion plating method cluster-ion beam method, plasma chemical vapor deposition method, thermal chemical vapor deposition method A thin film of an inorganic oxide such as silicon oxide or aluminum oxide on a resin film substrate using a chemical vapor deposition method (chemical vapor deposition method, CVD method) or the like. It is possible to use a resin film or sheet on which is formed. As the resin film substrate, any plastic film or sheet capable of holding an inorganic oxide thin film can be used. For example, polyolefin resin such as polyethylene, polypropylene, polybutene, ( (Meth) acrylic resin, polyvinyl chloride resin, polystyrene resin, polyvinylidene chloride resin, saponified ethylene-vinyl acetate copolymer, polyvinyl alcohol, polycarbonate resin, fluorine resin, poly Films or sheets of various resins such as vinyl acetate resin, acetal resin, polyester resin, polyamide resin and others can be used. As for the thickness of these resin film base materials, 12-20 micrometers is preferable. If it is less than 12 μm, it is too thin and has no stiffness, so that it is poor in printability as a printing substrate when printing the ground color of the container in a subsequent process. A thickness of more than 20 μm is not preferable because the stiffness of the container body becomes too strong. The thickness of the inorganic oxide vapor-deposited film is, for example, desirably selected and formed within a range of about 10 to 3000 mm, preferably 60 to 1000 mm. By providing an inorganic oxide vapor deposition film layer, the container can be provided with barrier properties against oxygen gas, water vapor and the like, long-term storage properties of various fragrances contained in the contents, and light shielding properties against sunlight and the like.

As the three-dimensional decorative resin layer, the same one as used in the laminate shown in FIG. 1 can be used. For example, low density polyethylene, medium density polyethylene, high density polyethylene, linear (linear) low density A film or sheet of a resin such as polyethylene can be used. The thickness of the three-dimensional decorative resin layer is preferably 100 to 300 μm. By providing a three-dimensional decorative resin layer between the surface printing and the surface printing projection layer, shadows such as characters and patterns on the surface printing are projected onto the opaque intermediate printing layer surface in the surface printing projection layer, When viewed, characters, designs, etc., overlap with the projected shadow, producing an excellent decorative effect such that the consumer looks three-dimensional. When the three-dimensional decorative resin layer is 100 μm or less, the deviation between the surface-printed characters and patterns and the projected shadow is small, and sufficient three-dimensional decorative properties do not occur. On the other hand, when the thickness is 300 μm or more, the surface printing and the metal foil layer are too far apart, and the shadows of characters and designs projected on the metal foil surface become thin, so that the characters and designs cannot be displayed sufficiently in three dimensions.
When the surface resin layer is provided on the three-dimensional decorative resin layer, the total thickness of the three-dimensional decorative resin layer and the surface resin layer is preferably 100 to 300 μm. Therefore, the thickness of the three-dimensional decorative resin layer is 100 to 260 μm. Is more desirable.

The intermediate printing layer is formed as an opaque layer by printing a desired color as the ground color of the container on the vapor deposition surface side of the inorganic oxide vapor deposition film. The intermediate print layer may have a uniform color pattern, and can be formed from any color and pattern such as a gradation pattern composed of shades of color.
In addition, since the background color of the container is printed with the intermediate printing layer, as described in the laminated body of FIG. 1, the cylinder can be formed by sticking the cylinder even if the bonded portions at both ends of the laminated body are colored. A tube container that does not come off can be produced.

  The manufacturing method of the laminated body of this invention shown to Fig.2 (a), (b) is demonstrated. First, on the vapor deposition surface of the inorganic oxide vapor-deposited film layer, a desired color pattern that is the background color of the container is printed so as to be opaque to form an opaque intermediate print layer, and the inorganic oxide vapor-deposited film layer and opaque Forming a surface printed projection layer comprising an intermediate printing layer. As a printing method, it is sufficient that the printed pattern is opaque, and a normal printing method can be used. In particular, by using a gravure printing method, printing of various patterns such as a gradation pattern by color shading is performed. And design properties are improved.

  Next, the inner surface resin layer is laminated on the intermediate printing layer side of the surface printing projection layer by the method described in the method for producing the inner surface resin layer of the laminate in FIG. Next, a three-dimensional decorative resin layer is formed on the base material side of the inorganic oxide vapor-deposited film that is the other surface of the surface printing projection layer. The three-dimensional decorative resin layer is formed using the method described in the method for manufacturing the three-dimensional decorative resin layer of the laminate in FIG.

  Furthermore, a character, a picture, etc. are printed on the three-dimensional decorative resin layer. The surface resin layer on the three-dimensional decorative resin layer of the laminate shown in FIG. 2 (b) is a resin by a melt extrusion method or the like on the three-dimensional decorative resin layer, as in the case of producing the laminate shown in FIG. 1 (b). Formed by extruding material. On the surface resin layer, characters, designs, etc. are printed.

  The laminate of the present invention shown in FIGS. 2A and 2B is manufactured by the above method, and the three-dimensional decorative resin layer 3 or the surface resin layer 11 at both ends is disposed so that the surface printing side of the laminate is on the outside. And the inner surface resin layer 5 are overlapped, and the opposite surface is welded by heat sealing, high frequency sealing or the like to form the cylindrical body portion 12. The tube container 16 of the present invention is manufactured by providing a head portion 15 including a shoulder portion 13 and a mouth portion 14 by injection-molding density polyethylene or the like by other molding methods.

  When the tube container 16 of the present invention produced using the laminate shown in FIGS. 2 (a) and 2 (b) is viewed from the outside of the container, the characters of the surface print 2 and the shadow of the pattern are 4 in the surface print projection layer. This is projected on the surface of the opaque intermediate printing layer 10 and has an excellent decorative effect that the characters and patterns on the surface appear to be three-dimensionally raised to the consumer.

The tube container manufacturing method of the present invention includes a step of producing a laminated body, a step of rounding and welding the laminated body into a tubular shape, and joining the body portion of the tube container, and a shoulder portion and a mouth portion that have been molded in advance. Because the tube container can be made by the process of joining the head made of the body to the body part, the productivity is higher and the cost is lower than the conventional technology that directly processes the tube body forming the body part of the tube container, and the high design. Tube tube can be manufactured.
Moreover, packaging containers, such as a pouch, can also be produced using the laminated body of this invention, and the character and pattern printed on the surface can be produced in three dimensions, and high designability can be given.

Example 1
The laminate and the tube container of the present invention were produced by the following procedure.
(1) Print a light green translucent tube container ground color partially containing a gradation pattern by gravure printing on one side of a 12 μm thick polyethylene terephthalate film that will be the base of the surface printing projection layer. An intermediate printing layer was provided. Further, an aluminum foil having a thickness of 15 μm was laminated on the printed surface via a two-component curable urethane-based dry laminate adhesive to form a surface print projection layer using the metal foil as a metal foil layer.
(2) Next, a 130 μm-thick linear low-density polyethylene film was laminated on the aluminum foil via a two-component curable urethane-based dry laminating adhesive to form an inner surface resin layer.
(3) Next, a 130 μm-thick linear low-density polyethylene film is laminated on the other surface of the polyethylene terephthalate film as the base material of the surface printing projection layer via a two-component curable urethane-based dry laminating adhesive, A three-dimensional decorative resin layer was formed.
(4) Next, on the three-dimensional decorative resin layer, by the letterpress printing method, the name of the toothpaste that is the tube contents and the catch phrase design are printed except for the end part that is to be bonded to the inner surface resin layer, The laminated body of this invention was produced.
(5) Next, the three-dimensional decorative resin layer and the inner surface resin layer were overlapped at the end of the laminate so that the surface printing side was on the outside, and the opposite surface was heat-sealed to form a cylindrical body.
(6) Finally, high-density polyethylene was injection-molded into one opening of the cylindrical body, and the head composed of the shoulder and mouth was joined to produce the tube container of the present invention.

(Example 2)
The laminate and the tube container of the present invention were produced by the following procedure.
(1) A thin pink translucent tube container ground color partially including a gradation pattern is printed on one surface of a polyethylene terephthalate film with a thickness of 12 μm, which will be the base material of the surface printing projection layer, by gravure printing. An intermediate printing layer was provided. Further, an aluminum foil having a thickness of 15 μm was laminated on the printed surface via a two-component curable urethane-based dry laminating adhesive to form a metal foil layer.
(2) Next, a 130 μm thick linear low density polyethylene film was laminated on the aluminum foil via a two-component curable urethane-based dry laminating adhesive to form an inner surface resin layer.
(3) Next, a 200 μm-thick linear low-density polyethylene film is laminated on the other surface of the polyethylene terephthalate film as the base material of the surface print projection layer via a two-component curable urethane-based dry laminating adhesive. A three-dimensional decorative resin layer was formed.
(4) Next, a linear low density polyethylene resin was laminated to a thickness of 30 μm on the three-dimensional decorative resin layer by a melt extrusion method to form a surface resin layer.
(5) Next, on the surface resin layer, the name of the cream that is the tube content and the background design are printed on the surface resin layer except for the end portion that is to be bonded to the inner surface resin layer. A laminate was prepared.
(6) Next, the surface resin layer and the inner surface resin layer were overlapped at the end of the laminate so that the surface printing side was on the outside, and the opposite surface was heat-sealed to form a cylindrical body.
(7) Finally, high-density polyethylene was injection-molded into one opening of the cylindrical body, and the head composed of the shoulder and mouth was joined to produce the tube container of the present invention.

(Example 3)
The laminate and the tube container of the present invention were produced by the following procedure.
(1) A silicon oxide vapor-deposited film in which a silicon oxide vapor-deposited film is provided with a thickness of 100 mm on a polyethylene terephthalate film having a thickness of 12 μm is used as an inorganic oxide vapor-deposited film. A blue opaque tube container ground color including a gradation pattern was printed on the part, and an intermediate printing layer was provided.
(2) Next, a 130 μm-thick linear low-density polyethylene film was laminated on the printing surface of the intermediate printing layer via a two-component curable urethane-based dry laminating adhesive to form an inner surface resin layer.
(3) Next, a 130 μm thick linear low-density polyethylene film is laminated on the substrate side of the inorganic oxide vapor-deposited film via a two-component curable urethane-based dry laminate adhesive to form a three-dimensional decorative resin layer did.
(4) Next, on the three-dimensional decorative resin layer, the name of the cream that is the tube contents and the background pattern are printed on the three-dimensional decorative resin layer except for the end portion that is to be bonded to the inner surface resin layer. The laminate of the invention was produced.
(5) Next, the three-dimensional decorative resin layer and the inner surface resin layer were overlapped at the end of the laminate so that the surface printing side was on the outside, and the opposite surface was heat-sealed to form a cylindrical body.
(6) Finally, high-density polyethylene was injection-molded into one opening of the cylindrical body, and the head composed of the shoulder and mouth was joined to produce the tube container of the present invention.

Example 4
The laminate and the tube container of the present invention were produced by the following procedure.
(1) A silicon oxide vapor-deposited film in which a silicon oxide vapor-deposited film is provided with a thickness of 100 mm on a polyethylene terephthalate film having a thickness of 12 μm is used as an inorganic oxide vapor-deposited film. A red opaque tube container ground color including a gradation pattern was printed on the part, and an intermediate printing layer was provided.
(2) Next, a 130 μm-thick linear low-density polyethylene film was laminated on the printing surface of the intermediate printing layer via a two-component curable urethane-based dry laminating adhesive to form an inner surface resin layer.
(3) Next, a 200 μm thick linear low density polyethylene film is laminated on the base material side of the inorganic oxide vapor-deposited film via a two-component curable urethane-based dry laminate adhesive, and a three-dimensional decorative resin layer is formed. Formed.
(4) Next, a linear low density polyethylene resin was laminated to a thickness of 30 μm on the three-dimensional decorative resin layer by a melt extrusion method to form a surface resin layer.
(5) Next, on the surface resin layer, the name of the seasoning which is the tube contents and the background pattern are printed by the letterpress printing method except for the end portion which is the portion to be bonded to the inner surface resin layer. The laminate of the invention was produced.
(6) Next, the surface resin layer and the inner surface resin layer were overlapped at the end of the laminate so that the surface printing side was on the outside, and the opposite surface was heat-sealed to form a cylindrical body.
(7) Finally, high-density polyethylene was injection-molded into one opening of the cylindrical body, and the head composed of the shoulder and mouth was joined to produce the tube container of the present invention.

(Example 5)
Using the laminate of the present invention in Example 1, a standing pouch having an outer dimension of 190 mm in length, a width of 180 mm, and a folding length of 35 mm at the bottom gusset portion was produced.
(1) The bottom film was folded back and sandwiched between two front and rear wall films, and both side edges were heat sealed.
(2) After filling 500 g of granulated sugar as the contents, the upper opening was heat sealed and sealed.

(Comparative Example 1)
A tube container was produced in the same manner as in Example 1 except that the three-dimensional decorative resin layer in Example 1 was formed of a linear low density polyethylene resin having a thickness of 30 μm by a melt extrusion method.

(Comparative Example 2)
A tube container was produced in the same manner as in Example 4 except that the three-dimensional decorative resin layer in Example 4 was formed of a linear low-density polyethylene film having a thickness of 280 μm.

(Evaluation)
When the tube containers and standing pouches manufactured in Examples 1 to 5 and Comparative Examples 1 and 2 were evaluated by visual observation, the surface letters of the tube containers of Examples 1 to 4 and the standing pouch of Example 5 were used. And the design looked three-dimensional, and the design was high. On the other hand, in the tube containers of Comparative Examples 1 and 2, the letters and patterns on the surface did not look three-dimensional.

ADVANTAGE OF THE INVENTION This invention can provide the laminated body which expresses the character and the pattern printed on the surface in three dimensions, and the tube container which has the high design property using the same.
When a packaging container such as a pouch is produced using the laminate of the present invention, characters and designs printed on the surface can be expressed in three dimensions, and high design properties can be imparted.

DESCRIPTION OF SYMBOLS 1 Laminate 2 Surface printing 3 Three-dimensional decoration resin layer 4 Surface printing projection layer 41 Surface printing projection layer 5 Inner surface resin layer 6 Base material 7 Intermediate printing layer (transparent / translucent)
8 Metal foil layer 9 Inorganic oxide vapor deposition film layer 10 Intermediate printing layer (opaque)
11 surface resin layer 12 trunk 13 shoulder 14 mouth 15 head 16 tube container

Claims (4)

At least a three-dimensional decorative resin layer made of polyolefin resin having a thickness in the range of 100 μm to 300 μm, and biaxially stretched PP (polypropylene) , PET (polyethylene terephthalate) in a range of thickness of 10 to 50 μm from the three-dimensional decorative resin layer side , ON (stretched nylon) , EVOH (ethylene-vinyl alcohol copolymer) , a resin film or sheet substrate, a translucent intermediate printing layer by gravure printing on the substrate, a metal foil layer It is a laminate in which a surface printing projection layer formed in order and an inner surface resin layer made of a polyolefin resin with heat sealability are laminated in order, and a character and a pattern are on the surface of the three-dimensional decorative resin layer A laminate characterized by being printed. At least a three-dimensional decorative resin layer comprising a polyolefin resin having a thickness in the range of 100 μm to 300 μm, and a polyolefin resin having a thickness in the range of 12 to 20 μm, (meth) acrylic resin, polychlorinated from the three-dimensional decorative resin layer side Vinyl resin, polystyrene resin, polyvinylidene chloride resin, saponified ethylene-vinyl acetate copolymer, polyvinyl alcohol, polycarbonate resin, fluorine resin, polyvinyl acetate resin, acetal resin, polyester resin, polyamide Inorganic oxide vapor deposition film layer, which is a resin film or sheet in which an inorganic oxide vapor deposition thin film is formed on one resin film base material in a resin, and a gravure of the vapor deposition surface of the inorganic oxide vapor deposition film layer A surface printed projection layer formed in the order of an opaque intermediate printed layer by printing, and a heat Laminate and the inner resin layer having a le resistant there polyolefin resin is a laminate formed by laminating in this order, characters, characterized in that the pattern is printed on the surface of the three-dimensional decorative resin layer.   A surface resin layer made of a heat-sealable resin film or sheet is formed on a surface different from the surface printed projection layer side surface of the three-dimensional decorative resin layer, and characters and designs are printed on the surface resin layer. The laminated body according to claim 1 or 2, wherein the laminate is formed.   The laminated body of claim 1 to 3 having a quadrilateral shape is overlapped with the body portion of the welded cylindrical tube container so that the character and picture printing are on the outside and the inner resin layer is on the inside. A tube container produced by joining a head portion including a shoulder portion and a mouth portion.

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