Packaging material for tube containers, tube containers, and tube containers with caps

Abstract

To provide a tube container packaging material, tube container and capped tube container that allow for improving design and easily taking out a content.SOLUTION: A tube container packaging material 50 comprises a first sealant layer 51, a base material layer 52 and a second sealant layer 53 that are arranged in order from a first surface 501 to a second surface 502. A laminate 50 is formed with a plurality of first ridge lines 11 protruding toward the first surface 501 and a plurality of second ridge lines 12 protruding toward the second surface 502. In a section extending along a normal line direction N1 to a first plane P1, the height H1 from the second ridge line 12 to the first ridge line 11 is 0.1 mm or greater and 0.5 mm or smaller. In a section extending along a normal line direction N2 to a second plane P2, the height H2 from the second ridge line 12 to the first ridge line 11 is 0.1 mm or greater and 0.5 mm or smaller.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present disclosure relates to a packaging material for a tube container, a tube container, and a tube container with a cap.

Background Art

[0002] Conventionally, a tube container having a tubular body is known (for example, Patent Document 1). Patent Document 1 discloses a tube container in which the tubular body includes a base layer that houses the content, a transparent or translucent protective layer that covers the outer surface of the base layer, and an intermediate body that is interposed between the protective layer and the base layer and decorates the entire or a part of the tubular body, and the outer appearance of the tubular body is formed with uneven portions corresponding to the thickness of the intermediate body.

[0003] Also, a packaging material that can be used for a tube container is known (for example, Patent Document 2). Patent Document 2 discloses a packaging material that can maintain good thermal adhesiveness and continuously exhibit excellent water repellency and non-adhesiveness.

[0004] By the way, in a tube container, it is required to improve the design property. Also, when the remaining amount of the content decreases, a tube container that allows the content to be easily taken out is required.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] The present disclosure has been made in consideration of such points, and an object thereof is to provide a packaging material for a tube container, a tube container, and a tube container with a cap that can improve the designability and easily take out the contents. **Means for Solving the Problems**

[0007] The packaging material for a tube container according to one embodiment includes a first sealant layer, a base material layer, and a second sealant layer that are arranged in order from a first surface to a second surface, and a plurality of first ridges that protrude toward the first surface side and a plurality of second ridges that protrude toward the second surface side are formed. In a cross section along the normal direction of a first plane including the plurality of first ridges, the height of the first surface from the second ridge to the first ridge adjacent to the second ridge is 0.1 mm or more and 0.5 mm or less. In a cross section along the normal direction of a second plane including the plurality of second ridges, the height of the second surface from the second ridge to the first ridge adjacent to the second ridge is 0.1 mm or more and 0.5 mm or less. It is a packaging material for a tube container.

[0008] In the packaging material for a tube container according to one embodiment, the first ridge may include a plurality of first curves that radially extend from a predetermined point so as to protrude toward one side in a predetermined direction in a plan view, and a plurality of second curves that radially extend from the predetermined point so as to protrude toward the other side in the predetermined direction in a plan view.

[0009] In the packaging material for a tube container according to one embodiment, each of the second ridges may be formed on a virtual line that radially extends from the predetermined point and passes through an intersection of the first curve and the second curve in a plan view.

[0010] In the packaging material for a tube container according to one embodiment, the first sealant layer may include an extrusion lamination molding layer or an inflation molding layer.

[0011] In the packaging material for a tube container according to an embodiment, a printed layer provided on the base material layer may be further provided.

[0012] In the packaging material for a tube container according to an embodiment, the first ridge line may correspond to the pattern displayed by the printed layer.

[0013] The packaging material for a tube container according to an embodiment further includes a barrier layer provided between the base material layer and the second sealant layer, and the barrier layer may be an aluminum foil.

[0014] In the packaging material for a tube container according to an embodiment, a protective layer that constitutes the first surface and protects the first sealant layer may be further provided.

[0015] In the packaging material for a tube container according to an embodiment, at least one of the first sealant layer, the base material layer, and the second sealant layer may contain a biomass-derived component.

[0016] In the packaging material for a tube container according to an embodiment, the base material layer may contain paper.

[0017] In the packaging material for a tube container according to an embodiment, 90% by weight or more may be composed of the same material.

[0018] A tube container according to an embodiment includes a body tube having a joint portion formed by overlapping and joining opposite ends of a packaging material for a tube container according to an embodiment, and a head member joined to one end of the body tube.

[0019] A capped tube container according to an embodiment includes a tube container according to an embodiment and a cap attached to the head member.

Advantages of the Invention

[0020] According to the present disclosure, in a tube container, the design can be improved and the content can be easily taken out.

Brief Description of the Drawings

[0021]

Figure 1

Figure 2A

Figure 2B

Figure 2C

Figure 2D

Figure 2E

Figure 2F

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Embodiments for Carrying Out the Invention

[0022] Hereinafter, an embodiment will be described with reference to the drawings. FIGS. 1 to 8 are diagrams showing an embodiment. Each of the diagrams shown below is a schematic diagram. Therefore, the size and shape of each part are exaggerated as appropriate for easy understanding. Also, it can be implemented with appropriate changes within the scope not departing from the technical idea. In each of the diagrams shown below, the same parts are denoted by the same reference numerals, and some detailed descriptions may be omitted. Also, the numerical values such as the dimensions of each member described in this specification and the material names are examples as an embodiment, and are not limited thereto, and can be appropriately selected and used. In this specification, terms specifying shapes and geometric conditions, such as terms like parallel, orthogonal, and perpendicular, shall be interpreted to include not only the strictly meant state but also substantially the same state.

[0023] In this embodiment, the "X direction" is a direction perpendicular to the longitudinal direction of the tube of the body of the tube container. This X direction is the direction that becomes parallel to the horizontal direction when the product produced by filling the tube container with the contents is placed upside down (with the cap down) during display and arrangement at a storefront, etc. Also, the X direction is the direction (width direction) perpendicular to the direction (flow direction) in which the film constituting the laminate flows when producing the laminate described later, and is the so-called TD (Transverse Direction). The "Y direction" is a direction perpendicular to the X direction and parallel to the longitudinal direction of the tube of the body of the tube container. This Y direction is the direction that becomes parallel to the vertical direction when the product is placed upside down. Also, the Y direction is the direction (flow direction) in which the film constituting the laminate flows when producing the laminate described later, and is the so-called MD (Machine Direction). The "Z direction" is a direction perpendicular to both the X direction and the Y direction and parallel to the thickness direction of the laminate.

[0024] First, with reference to FIG. 1, the capped tube container 10A produced using the laminate (packaging material for tube container) 50 according to this embodiment will be described.

[0025] As shown in FIG. 1, the capped tube container 10A according to this embodiment includes a tube container 10 and a cap 20 attached to a head member 40 of the tube container 10, which will be described later.

[0026] Among these, the tube container 10 includes a body tube 30 which is a laminated tube, and a head member 40 joined to one end 31 of the body tube 30.

[0027] Here, first, the head member 40 of the tube container 10 will be described.

[0028] As shown in FIG. 1, the head member 40 has a shoulder portion 41 and a mouth portion 42. Among these, the cap 20 is configured to be attached to the mouth portion 42.

[0029] Such a head member 40 is formed, for example, by a compression molding method as will be described later. Also, the head member 40 is made of a resin material such as high-density polyethylene (HDPE), for example.

[0030] Next, the body tube 30 of the tube container 10 will be described. The body tube 30 has a cylindrical shape with one end sealed as shown in FIG. 1. This body tube 30 is composed of a laminated body 50 (see FIGS. 2A to 2F) formed by laminate molding. Also, the body tube 30 has a body seal portion (joint portion) 32 in which opposing end portions 35 (see FIG. 7) of the laminated body 50 are overlapped and joined to each other. This body seal portion 32 is formed along the longitudinal direction (Y direction) of the body tube 30. Such a body tube 30 is a member obtained by rolling the laminated body 50 into a cylindrical shape, overlapping the opposing end portions 35, and joining them to each other, for example, by heat sealing.

[0031] Further, the body tube 30 has a bottom seal portion 34 that joins the laminates 50 to each other. This bottom seal portion 34 is a portion where the laminates 50 in the vicinity of the opening 50B are joined to each other after an appropriate amount of the content C is filled from the opening 50B (see FIG. 8) formed at the other end 33 of the body tube 30. The content C may be, for example, a cleansing agent containing alcohol, a sunscreen, toothpaste, a treatment, a body cream, or a hair styling agent (so-called hair wax).

[0032] Next, the layer configuration of the laminate 50 will be described. FIGS. 2A to 2F show an example of the layer configuration of the laminate 50 that constitutes the body tube 30. As shown in FIGS. 2A to 2F, the laminate 50 includes a first sealant layer 51, a base material layer 52, and a second sealant layer 53 that are sequentially arranged from the outer surface (first surface) 501 toward the inner surface (second surface) 502. Among these, at least one of the first sealant layer 51, the base material layer 52, and the second sealant layer 53 may contain a biomass-derived component as will be described later.

[0033] Further, as shown in FIGS. 2A, 2C, 2D, and 2F, the laminate 50 may further include a printing layer 54 provided on the base material layer 52. Also, as shown in FIGS. 2A to 2F, the laminate 50 may further include a barrier layer 55 provided between the base material layer 52 and the second sealant layer 53. Furthermore, as shown in FIGS. 2A to 2C and 2E, the laminate 50 may further include a protective layer 59 that constitutes the outer surface 501 and protects the first sealant layer 51.

[0034] Specifically, as shown in FIG. 2A, the laminate 50 includes, from the outer surface 501 toward the inner surface 502, a protective layer 59, a first printing layer 54a, a first sealant layer 51, a first anchor coat layer 56a, a base material layer 52, a second printing layer 54b (printing layer 54), a second anchor coat layer 56b, a first adhesive layer 57a, an intermediate layer 58, a second adhesive layer 57b, a barrier layer 55, a third adhesive layer 57c, and a second sealant layer 53 in this order. Among these, the first sealant layer 51 has a first resin layer 51a, a second resin layer 51b, and a third resin layer 51c arranged in order from the outer surface 501 toward the inner surface 502. In the example shown in FIG. 2A, the protective layer 59 constitutes the outer surface of the body tube 30. Also, the second sealant layer 53 constitutes the inner surface of the body tube 30.

[0035] Also, as shown in FIG. 2B, the laminate 50 includes, from the outer surface 501 toward the inner surface 502, a protective layer 59, a first printing layer 54a, a first sealant layer 51, a first anchor coat layer 56a, a base material layer 52, a first adhesive layer 57a, a first barrier layer 55a (barrier layer 55), a first intermediate layer 58a, a second anchor coat layer 56b, a second adhesive layer 57b, a second intermediate layer 58b, a third anchor coat layer 56c, a third adhesive layer 57c, a second barrier layer 55b (barrier layer 55), a fourth adhesive layer 57d, and a second sealant layer 53 in this order. Among these, the first sealant layer 51 has a first resin layer 51a and a second resin layer 51b arranged in order from the outer surface 501 toward the inner surface 502. Also, the second sealant layer 53 has a first resin layer 53a and a second resin layer 53b arranged in order from the inner surface 502 toward the outer surface 501. In the example shown in FIG. 2B, the protective layer 59 constitutes the outer surface of the body tube 30. Also, the first resin layer 53a of the second sealant layer 53 constitutes the inner surface of the body tube 30.

[0036] Also, as shown in FIG. 2C, the laminate 50 includes, in order from the outer surface 501 to the inner surface 502, a protective layer 59, a first sealant layer 51, a first anchor coat layer 56a, a base material layer 52, a printing layer 54, a first adhesive layer 57a, a first barrier layer 55a (barrier layer 55), a first intermediate layer 58a, a second adhesive layer 57b, a second intermediate layer 58b, a second anchor coat layer 56b, a third adhesive layer 57c, a second barrier layer 55b (barrier layer 55), a fourth adhesive layer 57d, and a second sealant layer 53. Among these, the first sealant layer 51 has a first resin layer 51a, a second resin layer 51b, and a third resin layer 51c arranged in order from the outer surface 501 to the inner surface 502. In the example shown in FIG. 2C, the protective layer 59 constitutes the outer surface of the body tube 30. Also, the second sealant layer 53 constitutes the inner surface of the body tube 30.

[0037] Also, as shown in FIG. 2D, the laminate 50 includes, in order from the outer surface 501 to the inner surface 502, a first sealant layer 51, a printing layer 54, a base material layer 52, a first adhesive layer 57a, a barrier layer 55, a second adhesive layer 57b, an intermediate layer 58, an anchor coat layer 56, and a second sealant layer 53. Among these, the first sealant layer 51 has a first resin layer 51a, a second resin layer 51b, and a third resin layer 51c arranged in order from the outer surface 501 to the inner surface 502. Also, the second sealant layer 53 has a first resin layer 53a and a second resin layer 53b arranged in order from the inner surface 502 to the outer surface 501. In the example shown in FIG. 2D, the first resin layer 51a of the first sealant layer 51 constitutes the outer surface of the body tube 30. Also, the first resin layer 53a of the second sealant layer 53 constitutes the inner surface of the body tube 30.

[0038] Also, as shown in FIG. 2E, the laminate 50 includes, in order from the outer surface 501 to the inner surface 502, a protective layer 59, a first printing layer 54a, a first sealant layer 51, a first adhesive layer 57a, a first barrier layer 55a (barrier layer 55), a base material layer 52, a second adhesive layer 57b, a first intermediate layer 58a, a third adhesive layer 57c, a second barrier layer 55b (barrier layer 55), a fourth adhesive layer 57d, a second intermediate layer 58b, a fifth adhesive layer 57e, and a second sealant layer 53. Among these, the first sealant layer 51 has a first resin layer 51a, a second resin layer 51b, and a third resin layer 51c arranged in order from the outer surface 501 to the inner surface 502. Further, the base material layer 52 has a first resin layer 52a, a second resin layer 52b, and a third resin layer 52c arranged in order from the outer surface 501 to the inner surface 502. Additionally, the second sealant layer 53 has a first resin layer 53a, a second resin layer 53b, and a third resin layer 53c arranged in order from the inner surface 502 to the outer surface 501. In the example shown in FIG. 2E, the protective layer 59 constitutes the outer surface of the body tube 30. Also, the first resin layer 53a of the second sealant layer 53 constitutes the inner surface of the body tube 30.

[0039] Furthermore, as shown in FIG. 2F, the laminate 50 includes, in order from the outer surface 501 to the inner surface 502, a first sealant layer 51, a first adhesive layer 57a, a base material layer 52, a printing layer 54, a second adhesive layer 57b, a barrier layer 55, an intermediate layer 58, a third adhesive layer 57c, and a second sealant layer 53. In the example shown in FIG. 2F, the first sealant layer 51 constitutes the outer surface of the body tube 30. Also, the second sealant layer 53 constitutes the inner surface of the body tube 30.

[0040] Hereinafter, each layer of the laminate 50 will be described.

[0041] First sealant layer The first sealant layer 51 is a layer for adhering the laminates 50 to each other. As the material constituting the first sealant layer 51, a material that melts and fuses by heat is used. For example, polyolefin is used for the first sealant layer 51. More specifically, as the first sealant layer 51, for example, low-density polyethylene (LDPE), medium-density polyethylene (MDPE), high-density polyethylene (HDPE), linear (linear) low-density polyethylene (LLDPE), polypropylene, polyolefin resin such as polyethylene or polypropylene modified with acrylic acid, methacrylic acid, maleic acid, maleic anhydride, fumaric acid, itaconic acid, or other unsaturated carboxylic acids, acid-modified polyolefin resin, polyvinyl acetate resin, polyester resin, polystyrene resin, polyacrylonitrile, saturated polyester, or other resins such as polyvinyl alcohol may be used. When the first sealant layer 51 is multilayered, the above-described resin materials may be used for the first resin layer 51a, the second resin layer 51b, and the third resin layer 51c. Also, the polyethylene may contain biomass-derived components, and the polyethylene may contain biomass-derived components.

[0042] The first sealant layer 51 may include an extrusion lamination molding layer or an inflation molding layer. In this case, the above-described first resin layer 51a may be an extrusion lamination molding layer or an inflation molding layer formed on the second resin layer 51b. Thereby, the moldability of the first ridge line 11 and the second ridge line 12 described later can be improved.

[0043] In the present embodiment, when producing the above-described first sealant layer 51, for example, first, a desired additive is arbitrarily added to a resin composition mainly composed of one or more of the above-described resins. In this way, a desired resin composition is prepared. Next, using the resin composition prepared above, a film or sheet as the first sealant layer 51 is formed using, for example, the inflation method or other molding methods.

[0044] As the material of the first sealant layer 51, for example, a material obtained by arbitrarily adding an antiblocking agent, a lubricant (such as fatty acid amide), a flame retardant, an inorganic or organic filler, etc. may be used.

[0045] In the present embodiment, the thickness of the first sealant layer 51 is preferably 50 μm or more and 250 μm or less.

[0046] Base material layer The base material layer 52 is, for example, a layer for supporting the first sealant layer 51 and the second sealant layer 53 and enhancing the strength of the entire laminate 50. As the material constituting the base material layer 52, for example, a polyester-based resin, a polyamide-based resin, a polyaramide-based resin, a polyolefin-based resin, a polycarbonate-based resin, a polyacetal-based resin, a fluorine-based resin, or other tough resins may be used. And the base material layer 52 may be formed of a film or a sheet made of the above-mentioned resin. As an example, the base material layer 52 may contain polyethylene terephthalate. When the base material layer 52 contains polyethylene terephthalate, the polyethylene terephthalate may contain biomass-derived components. When the base material layer 52 is multilayered, the above-mentioned resin materials may be used for the first resin layer 52a, the second resin layer 52b, and the third resin layer 52c.

[0047] Also, as the film or sheet of the above-mentioned resin, an unstretched film may be used. Also, as the film or sheet of the above-mentioned resin, a stretched film stretched in a uniaxial direction or a biaxial direction may be used. Among them, in the present embodiment, since it is excellent in terms of printing suitability, the film used as the base material layer 52 is preferably a biaxially stretched polyester-based resin film.

[0048] Also, the base material layer 52 may contain paper. In this case, as the base material layer 52, those that impart formability, flex resistance, rigidity, etc. to the laminate 50 may be used, for example, coated paper or uncoated paper, or paper base materials such as pure white roll paper, kraft paper, cardboard, processed paper, etc. may be used. Also, the basis weight of the paper constituting the base material layer 52 is, for example, 80 g / m 2 or more and 600 g / m 2 or less, and may be 100 g / m 2 or more and 450 g / m 2 or less, and preferably is.

[0049] In the present embodiment, the thickness of the base material layer 52 is preferably 10 μm or more and 25 μm or less.

[0050] Second sealant layer The second sealant layer 53 is a layer for bonding the laminates 50 to each other. As the material constituting the second sealant layer 53, for example, the same material as the above-described first sealant layer 51 may be used. When the second sealant layer 53 is multilayered, the above-described resin materials may be used for the first resin layer 53a, the second resin layer 53b, and the third resin layer 53c.

[0051] In the present embodiment, the thickness of the second sealant layer 53 is preferably 50 μm or more and 250 μm or less.

[0052] Printing layer Printing layers such as the first printing layer 54a and the second printing layer 54b are layers on which printing such as patterns is performed. The printing layers such as the first printing layer 54a and the second printing layer 54b are layers for improving the design property of the laminate 50. As the printing layer, an ink composition mainly composed of one or more of ordinary ink vehicles may be used. Also, as the printing layer, an ink composition obtained by arbitrarily adding one or more additives, further adding a colorant such as a dye or a pigment, and then sufficiently kneading with a solvent, a diluent, etc. may be used. Note that as the additive, a plasticizer, a stabilizer, an antioxidant, a light stabilizer, an ultraviolet absorber, a curing agent, a crosslinking agent, a lubricant, an antistatic agent, a filler, or other additives may be used. Examples of such an ink vehicle include one or more of linseed oil, tung oil, soybean oil, hydrocarbon oil, rosin, rosin ester, rosin-modified resin, shellac, alkyd resin, phenolic resin, maleic acid resin, natural resin, hydrocarbon resin, polyvinyl chloride-based resin, polyacetic acid-based resin, polystyrene-based resin, polyvinyl butyral resin, acrylic or methacrylic-based resin, polyamide-based resin, polyester-based resin, polyurethane-based resin, epoxy-based resin, urea resin, melamine resin, amino alkyd-based resin, nitrocellulose, ethyl cellulose, chlorinated rubber, cyclized rubber, or other materials. The printing method may be, in addition to gravure printing, letterpress printing (relief printing), screen printing, transfer printing, flexographic printing, or other printing methods. In this specification, "pattern" refers to characters, figures, symbols, patterns, colors, or combinations thereof.

[0053] Barrier layer Barrier layers such as the first barrier layer 55a and the second barrier layer 55b are layers for suppressing permeation of oxygen gas, water vapor, etc. As the barrier layer, for example, a gas barrier material against oxygen gas or water vapor, a light-shielding material against sunlight, etc., or a material having fragrance retention for the contents may be used. Specifically, as the barrier layer, for example, aluminum foil, tin, lead, copper, iron, nickel, or an alloy thereof, etc., or a thin metal vapor deposition layer such as aluminum may be used. When using aluminum foil as the barrier layer, the thickness of the barrier layer can be about 5 μm or more and 20 μm or less. By using aluminum foil as the barrier layer, the production of the laminate 50 becomes easy. Also, by using aluminum foil as the barrier layer, the formability of the first ridge line 11 and the second ridge line 12 described later can be further improved, and the shapes of the formed first ridge line 11 and second ridge line 12 can be effectively maintained.

[0054] Also, when using a metal vapor deposition layer such as aluminum as the barrier layer, for example, physical vapor deposition methods such as vacuum vapor deposition method, sputtering method, ion plating method, or cluster ion beam method (Physical Vapor Deposition method, PVD method), etc. can be utilized to form a vapor deposition thin film of a metal such as aluminum on the intermediate layer.

[0055] When using an aluminum metal vapor deposition layer as the barrier layer, the thickness of the barrier layer is usually preferably about 50 Å or more and 3000 Å or less, and particularly preferably about 100 Å or more and 2000 Å or less. Also, in order to enhance the adhesion of the vapor deposition film, the surface of the intermediate layer supporting the above aluminum vapor deposition thin film may be pre-coated with, for example, a vapor deposition primer, etc., and in addition, required pretreatment may be arbitrarily performed on the surface of the intermediate layer.

[0056] Also, the barrier layer may be a transparent vapor deposition layer formed by a conventionally known method. Since the barrier layer is a transparent vapor deposition layer, the laminate 50 can also be made transparent. In this case, the barrier layer may be a transparent vapor deposition layer composed of a vapor deposition layer of an inorganic oxide.

[0057] As the transparent vapor deposition layer, for example, a vapor deposition layer of an oxide such as silicon (Si), aluminum (Al), magnesium (Mg), calcium (Ca), potassium (K), tin (Sn), sodium (Na), boron (B), titanium (Ti), lead (Pb), zirconium (Zr) or yttrium (Y) can be used. In particular, as the transparent vapor deposition layer for a tube container, it is preferable to provide a vapor deposition layer containing aluminum oxide or silicon oxide.

[0058] The notation of the inorganic oxide is, for example, MO X , AlO X and the like, such as X (wherein, in the formula, M represents an inorganic element, and the value of X varies depending on the inorganic element). The range of the value of X is such that for silicon (Si), it is 0 to 2, for aluminum (Al), it is 0 to 1.5, for magnesium (Mg), it is 0 to 1, for calcium (Ca), it is 0 to 1, for potassium (K), it is 0 to 0.5, for tin (Sn), it is 0 to 2, for sodium (Na), it is 0 to 0.5, for boron (B), it is 0 to 1.5, for titanium (Ti), it is 0 to 2, for lead (Pb), it is 0 to 2, for zirconium (Zr), it is 0 to 2, and for yttrium (Y), it can take values in the range of 0 to 1.5. In the above, when X = 0, it is a complete inorganic simple substance (pure substance), and the inorganic simple substance is not transparent. Also, the upper limit of the range of X is the value when completely oxidized. For the vapor deposition layer of the packaging material, silicon (Si) or aluminum (Al) is preferably used. At this time, when the inorganic element is silicon (Si), the value of X is preferably 1.0 to 2.0. Also, when the inorganic element is aluminum (Al), the value of X is preferably 0.5 to 1.5.

[0059] The thickness of the transparent vapor deposition layer varies depending on the type of inorganic oxide used, etc., but the thickness of the transparent vapor deposition layer is, for example, preferably 50 Å or more and 2000 Å or less, more preferably 100 Å or more and 1000 Å or less. For example, when the transparent vapor deposition layer contains aluminum oxide or silicon oxide, the thickness of the transparent vapor deposition layer is 50 Å or more and 500 Å or less, and more preferably 100 Å or more and 300 Å or less.

[0060] The transparent vapor deposition layer can be formed on the intermediate layer using the following formation method. The formation method of the vapor deposition layer may be, for example, a physical vapor deposition method (Physical Vapor Deposition method, PVD method) such as a vacuum vapor deposition method, a sputtering method, or an ion plating method. Also, the formation method of the vapor deposition layer may be, for example, a chemical vapor deposition method (Chemical Vapor Deposition method, CVD method) such as a plasma chemical vapor deposition method, a thermal chemical vapor deposition method, or a photo chemical vapor deposition method. Specifically, using a roller-type vapor deposition layer forming apparatus, the vapor deposition layer can be formed on the forming roller. Further, a gas barrier coating film may be provided on the vapor deposition layer. Thereby, permeation of oxygen, water vapor, etc. is suppressed. Also, by providing the gas barrier coating film adjacent to the vapor deposition layer, generation of cracks in the vapor deposition layer is effectively suppressed. The above gas barrier coating film contains at least one resin composition such as a hydrolyzate of a metal alkoxide or a hydrolytic condensate of a metal alkoxide. Note that a resin composition such as a hydrolyzate of a metal alkoxide or a hydrolytic condensate of a metal alkoxide is obtained by polycondensing a mixture of a metal alkoxide and a water-soluble polymer by the sol-gel method. Also, during the polycondensation by the sol-gel method, a resin composition such as a hydrolyzate of a metal alkoxide or a hydrolytic condensate of a metal alkoxide is polycondensed in the presence of a sol-gel method catalyst, water, an organic solvent, etc.

[0061] Protective layer The protective layer 59 is a layer for protecting the first sealant layer 51. As the protective layer 59, a resin composition or ink containing nitrocellulose resin, polyurethane resin, acrylic resin, polyamide resin, vinyl chloride resin, chlorinated PP resin, or the like may be used. Further, the protective layer 59 may be formed by, for example, flexographic printing, letterpress printing, or gravure printing. In particular, the protective layer 59 may be formed by gravure printing using an acrylic-based OP varnish. Further, the protective layer 59 may be formed by, in particular, flexographic printing or letterpress printing using a flexographic printing ink. The thickness of the protective layer 59 is preferably, for example, 0.5 μm or more and 5.0 μm or less.

[0062] Anchor coat layer Anchor coat layers such as the first anchor coat layer 56a, the second anchor coat layer 56b, and the third anchor coat layer 56c are layers for enhancing the adhesion between layers. The anchor coat layer 56 is formed by applying an anchor coat agent and drying it. Examples of the anchor coat agent include any resin having a heat resistance temperature of 135° C. or higher, such as a vinyl-modified resin, an epoxy resin, a urethane resin, a polyester resin, or a polyethyleneimine. In particular, as the anchor coat agent, a cured product of a polyacrylic resin or a polymethacrylic resin (polyol) having two or more hydroxyl groups in the structure and an isocyanate compound as a curing agent is preferably used. Further, a silane coupling agent may be added to this anchor coat agent as an additive. Further, nitrocellulose may be used in this anchor coat agent to enhance heat resistance. The dried anchor coat layer is preferably 1 μm or more and 10 μm or less.

[0063] Adhesive layer Adhesive layers such as the first adhesive layer 57a, the second adhesive layer 57b, the third adhesive layer 57c, the fourth adhesive layer 57d, and the fifth adhesive layer 57e are layers for adhering the first sealant layer 51, the base material layer 52, the second sealant layer 53, etc. to each other. The material constituting the adhesive layer can be appropriately selected according to the resin constituting the layer to be adhered.

[0064] As the adhesive layer, for example, an anchor coating agent such as an isocyanate-based (urethane-based), polyethyleneimine-based, polybutadiene-based, or organotitanium-based agent may be used. Further, as the adhesive layer, for example, a polyurethane-based, polyacrylic-based, polyester-based, epoxy-based, polyvinyl acetate-based, cellulose-based, or other laminating adhesive may be arbitrarily used.

[0065] In addition, as the material constituting the adhesive layer, for example, polyethylene, polypropylene, ethylene-vinyl alcohol, ethylene-methacrylic acid copolymer (EMAA), ethylene-acrylic acid copolymer, ionomer, or maleic anhydride-modified polyolefin resin can be preferably used.

[0066] In the present embodiment, the thickness of the adhesive layer is preferably 3 μm or more and 60 μm or less, respectively.

[0067] Also, the method of laminating the first sealant layer 51, the base material layer 52, or the second sealant layer 53 to each other may be, for example, a wet lamination method, a dry lamination method, a solventless dry lamination method, an extrusion lamination method, a co-extrusion lamination method, an inflation method, or any other method. Further, when performing the above-described lamination, the film may be subjected to a pretreatment such as a corona treatment or an ozone treatment.

[0068] Intermediate layer Intermediate layers such as the first intermediate layer 58a and the second intermediate layer 58b are, for example, layers for supporting the first sealant layer 51 or the second sealant layer 53 and increasing the strength of the entire laminate 50. As the material constituting the intermediate layer 58, for example, the same material as the material constituting the base material layer 52 described above may be used. Further, the intermediate layer 58 may play a role in improving the designability of the laminate 50. In this case, an emulsified polyethylene film or the like may be used as the intermediate layer 58.

[0069] In this embodiment, the thickness of the intermediate layer 58 is preferably 10 μm or more and 25 μm or less.

[0070] Preferably, 90% by weight or more of such a laminate 50 is composed of the same material. Thereby, when recycling the tube container 10, the tube container 10 can be easily recycled.

[0071] Incidentally, as shown in FIGS. 3 and 4, a plurality of first ridges 11 that protrude toward the outer surface (first surface) 501 side and a plurality of second ridges 12 that protrude toward the inner surface (second surface) 502 side are formed on the laminate 50. Thereby, an excellent design with a three-dimensional feeling is imparted to the tube container 10. Further, the content easily slides along the first ridge 11. For this reason, the content is easily taken out from the tube container 10. In particular, since the content easily slides along the first ridge 11, even when the remaining amount of the content is small, the content is easily taken out from the tube container 10.

[0072] The first ridge 11 may include a plurality of first curves 11a and a plurality of second curves 11b. Among these, the first curve 11a extends radially from a predetermined point P so as to protrude toward one side in a predetermined direction in a plan view. In the illustrated example, the plurality of first curves 11a extend radially from a predetermined point P so as to protrude toward one side (the right side in FIG. 3) in the X direction in a plan view. On the other hand, the plurality of second curves 11b extend radially from a predetermined point P so as to protrude toward the other side in a predetermined direction in a plan view. In the illustrated example, the second curve 11b extends radially from a predetermined point P so as to protrude toward the other side (the left side in FIG. 3) in the X direction in a plan view. Thereby, as shown in FIG. 3, in the tube container 10, a rich design expression with a sense of luxury is realized. For this reason, the design property of the tube container 10 can be further improved.

[0073] In the illustrated example, each of the first curves 11a is an arc having the same radius of curvature, and the centers of the respective arcs are different from each other. In this case, the centers of the respective arcs are provided at positions rotated by a predetermined angle (15° in the example shown in FIG. 3) about the point P.

[0074] Each of the second ridges 12 may be formed on a virtual line IL that extends radially from a predetermined point P in a plan view and passes through the intersection of the first curve 11a and the second curve 11b. Thereby, the three-dimensional effect of the laminate 50 can be effectively expressed. For this reason, the design property of the tube container 10 can be improved.

[0075] Here, since the above-described first ridge line 11 is formed on the laminate 50, a plurality of concavo-convex patterns 15 surrounded by the first ridge line 11 are formed on the laminate 50. The concavo-convex patterns 15 adjacent to each other have different shapes. Here, as an example, one concavo-convex pattern 15 and another concavo-convex pattern 15 that is located on the plus side in the Y direction relative to the one concavo-convex pattern 15 and is located on the same virtual line IL are compared. As shown in FIG. 3, one concavo-convex pattern 15 has a shape in which the length along the Y direction becomes longer and the length along the X direction of the concavo-convex pattern 15 becomes shorter as compared with the other concavo-convex pattern 15. Thereby, as going toward the minus side in the Y direction, the content slides down more easily along the Y direction. For this reason, by joining the head member 40 to one end 31 (see FIG. 1) on the minus side in the Y direction, the content can be more easily taken out from the tube container 10.

[0076] Further, as described above, the first ridge line 11 can be configured to pass through a predetermined point P in a plan view. Here, as shown in FIG. 3, it is preferable that the predetermined point P is a point provided at a position that does not overlap with the laminate 50 in a plan view. As shown in FIG. 3, as approaching the point P, the length of the concavo-convex pattern 15 along the direction in which the virtual line IL extends becomes longer, and the length of the concavo-convex pattern 15 along the direction orthogonal to the direction in which the virtual line IL extends becomes shorter. That is, as approaching the point P, the content becomes easier to slide toward the point P. Therefore, since the point P is provided at a position that does not overlap with the laminate 50 in a plan view, the content can be taken out from the tube container 10 more easily. Although not shown, the point P may be a point provided at a position that overlaps with the laminate 50 in a plan view.

[0077] As shown in FIG. 4, in a predetermined cross section, the height H1 from the second ridge line 12 to the first ridge line 11 adjacent to the second ridge line 12 is 0.1 mm or more and 0.5 mm or less. Here, the predetermined cross section is a cross section along the normal direction N1 of the first plane P1. Further, the first plane P1 is a plane including a plurality of first ridge lines 11. Furthermore, the height H1 is the height on the outer surface (the first surface) 501. Since the height H1 is 0.1 mm or more, the first ridge line 11 becomes prominent. Therefore, the design property of the tube container 10 can be improved. Also, since the height H1 is 0.5 mm or less, as will be described later, the formability when forming the first ridge line 11 and the second ridge line 12 by embossing can be improved. Note that the above-described height H1 and the height H2 described later can be measured using a laser microscope (for example, Keyence Corporation, shape analysis laser microscope VK-8710 (product name)).

[0078] Also, in a predetermined cross-section, the height H2 from the second ridge line 12 to the first ridge line 11 adjacent to the second ridge line 12 is 0.1 mm or more and 0.5 mm or less. Here, the predetermined cross-section is a cross-section along the normal direction N2 of the second plane P2. Also, the second plane P2 is a plane including a plurality of second ridge lines 12. Further, the height H2 is the height at the inner surface (second surface) 502. When the height H2 is 0.1 mm or more, the content easily slides along the first ridge line 11. Also, when the height H2 is 0.5 mm or less, as will be described later, the formability when forming the first ridge line 11 and the second ridge line 12 by embossing can be improved. In the present embodiment, the normal direction N2 of the second plane P2 is parallel to the normal direction N1 of the first plane P1. However, the present invention is not limited to this, and the normal direction N2 of the second plane P2 may be non-parallel to the normal direction N1 of the first plane P1.

[0079] Furthermore, the height H1 may be equal to or greater than the height H2. Here, it has been found that the height H1 on the outer surface 501 can affect the performance of the body tube 30 to maintain its shape more than the height H2 on the inner surface 502. And it has been found that when the height H1 is equal to or greater than the height H2, the performance of the body tube 30 to maintain its shape can be improved. Therefore, when the height H1 is equal to or greater than the height H2, the shape of the body tube 30 can be effectively maintained.

[0080] Further, since the height H1 is greater than or equal to the height H2, it becomes possible to improve the design property of the tube container 10 while maintaining the quality of the tube container 10 well. That is, as described above, when the height H1 is increased, the first ridge line 11 becomes prominent on the outer surface 501, so that the design property of the tube container 10 can be improved. Also, when the height H2 is decreased, it is possible to suppress damage to the second sealant layer 53 or the second barrier layer 55b (barrier layer 55) of the laminate 50 due to embossing. Thereby, it is possible to suppress the penetration of the components of the content (for example, alcohol, etc.) into each layer of the laminate 50, and it is possible to suppress, for example, the deterioration (for example, swelling) of the base material layer 52. Thus, since the height H1 is greater than or equal to the height H2, it becomes possible to improve the design property of the tube container 10 while maintaining the quality of the tube container 10 well.

[0081] The above-described first ridge line 11 may be provided so as to correspond to the pattern displayed by the printing layer 54. In this case, the first ridge line 11 may be formed along the contour of the pattern displayed by the printing layer 54. Thereby, the pattern displayed by the printing layer 54 becomes prominent. For this reason, the design property of the tube container 10 can be further improved.

[0082] Next, with reference to FIGS. 5 to 8, a method for manufacturing the capped tube container 10A will be described.

[0083] First, for example, the laminate 50 shown in FIG. 2A is prepared. At this time, first, an intermediate laminate 50a (see FIG. 5) having the layer structure shown in FIG. 2A is prepared.

[0084] Next, as shown in FIG. 5, the laminate 50 is produced by embossing the laminate intermediate 50a. In this laminate 50, a plurality of first ridges 11 that protrude toward the outer surface 501 side and a plurality of second ridges 12 that protrude toward the inner surface 502 side are formed. At this time, the laminate intermediate 50a passes between a cooling roll 85 having an uneven structure formed on its surface and a rubber roll 86 having an uneven structure formed on its surface. As a result, a plurality of first ridges 11 that protrude toward the outer surface 501 side and a plurality of second ridges 12 that protrude toward the inner surface 502 side are formed on the laminate intermediate 50a. In this way, the laminate 50 is obtained.

[0085] Next, the laminate 50 is rounded, and the opposing edge portions 35 are joined to each other by, for example, heat sealing. Thereby, the laminate 50 is formed into a cylinder, and the body tube 30 is produced. At this time, first, as shown in FIG. 6(a), the laminate 50 is wound around the outer surface of a cylindrical inner seal member 80, and the opposing edge portions 35 of the laminate 50 are overlapped. At this time, the laminate 50 is wound around the inner seal member 80 so that the second sealant layer 53 of the laminate 50 faces the outer surface of the inner seal member 80. Further, when the opposing edge portions 35 of the laminate 50 are overlapped, the laminate 50 is conveyed to the downstream side (the left side in FIG. 6(a)) by a guide roll (not shown). The inner seal member 80 is made of metal, for example, stainless steel.

[0086] Next, as shown in FIG. 6(b), an outer seal member 81 is pressed against the portion where the opposing edge portions 35 of the laminate 50 are overlapped, and the portion where the opposing edge portions 35 of the laminate 50 are overlapped is sandwiched between the inner seal member 80 and the outer seal member 81. Next, the portion where the opposing edge portions 35 of the laminate 50 are overlapped is joined by heat sealing.

[0087] In this case, the first sealant layer 51 (see FIG. 2A) provided on the outer surface 501 side of the laminate 50 and the second sealant layer 53 (see FIG. 2A) provided on the inner surface 502 side are melted and joined.

[0088] Thereafter, the joined laminate 50 is cut into individual body tubes 30. In this way, as shown in FIG. 7, the body tubes 30 are produced. At this time, the speed of producing the body tubes 30 may be about 300 pieces / min.

[0089] Next, the tube container 10 described above is manufactured by a compression molding method. At this time, the body tube 30 is inserted into a mold (not shown), and molten resin is supplied from a resin supply device (not shown) into the mold, so that the head member 40 is compression molded at one opening 50A of the body tube 30. Thereby, a tube container 10 including the body tube 30 and the head member 40 joined to one end 31 of the body tube 30 is obtained (see FIG. 8).

[0090] As described above, the joining of the body tube 30 and the head member 40 is performed by heat welding when the head member 40 is molded by a compression molding method. However, it is not limited thereto, and the joining of the body tube 30 and the head member 40 may be performed by an injection molding method.

[0091] Next, a cap 20 is attached to the head member 40 of the obtained tube container 10, and a tube container 10A with a cap to which the cap 20 is attached is obtained. Thereafter, a plurality of tube containers 10A with caps are conveyed to a factory or the like for filling the content C.

[0092] Then, the tube container 10A with a cap conveyed to a factory or the like for filling the content C is filled with the content C. At this time, for example, a cleansing agent, toothpaste, or other content C is filled in an appropriate amount from the opening 50B (see FIG. 8) of the body tube 30. Then, the opening 50B is welded to form a bottom seal portion 34 (see FIG. 1), and a tube container 10A with a cap filled and packaged with the content C is obtained.

[0093] According to the present embodiment as described above, a plurality of first ridge lines 11 that protrude toward the outer surface 501 side and a plurality of second ridge lines 12 that protrude toward the inner surface 502 side are formed on the laminate 50. As a result, an excellent design with a three-dimensional effect is imparted to the tube container 10. Further, in the tube container 10, the roundness of the body tube 30 can be kept high. Therefore, the body tube 30 can be easily crushed by the fingers of a consumer. For this reason, the content can be easily taken out from the tube container 10.

[0094] Further, on the outer surface 501, the height H1 from the second ridge line 12 to the first ridge line 11 is 0.1 mm or more and 0.5 mm or less. Since the height H1 is 0.1 mm or more in this way, the first ridge line 11 becomes prominent, so that the design property of the tube container 10 can be improved. Further, since the height H1 is 0.5 mm or less, the formability when forming the first ridge line 11 and the second ridge line 12 by embossing can be improved. Furthermore, on the inner surface 502, the height H1 from the second ridge line 12 to the first ridge line 11 is 0.1 mm or more and 0.5 mm or less. Since the height H2 is 0.1 mm or more in this way, the content easily slides along the first ridge line 11. Further, since the height H2 is 0.5 mm or less, the formability when forming the first ridge line 11 and the second ridge line 12 by embossing can be improved. Note that the ease of taking out the content from the tube container 10 will be described by examples described later.

[0095] Further, according to the present embodiment, the first ridge line 11 includes a plurality of first curves 11a that radially extend from a predetermined point P so as to protrude toward one side (the right side in FIG. 3) in the X direction in a plan view, and a plurality of second curves 11b that radially extend from the predetermined point P so as to protrude toward the other side (the left side in FIG. 3) in the X direction in a plan view. As a result, in the tube container 10, a rich design expression with a sense of luxury is realized. Therefore, the design property of the tube container 10 can be further improved.

[0096] Further, according to the present embodiment, each of the second ridge lines 12 extends radially from a predetermined point P in a plan view and is formed on a virtual line IL passing through the intersection of the first curve 11a and the second curve 11b. Thereby, the three-dimensional effect of the laminate 50 can be effectively expressed. For this reason, the design of the tube container 10 can be improved.

[0097] Further, according to the present embodiment, the first sealant layer 51 includes an extrusion lamination layer or an inflation molding layer. Thereby, when forming the first ridge line 11 and the second ridge line 12 in the laminate 50, the formability of the first ridge line 11 and the second ridge line 12 can be improved.

[0098] Further, according to the present embodiment, it further includes a printing layer 54 provided on the base material layer 52. Thereby, the design of the tube container 10 can be further improved.

[0099] Further, according to the present embodiment, the first ridge line 11 corresponds to the pattern displayed by the printing layer 54. Thereby, the design of the tube container 10 can be further improved.

[0100] Further, according to the present embodiment, it further includes a barrier layer 55 provided between the base material layer 52 and the second sealant layer 53, and the barrier layer 55 is an aluminum foil. Thereby, the barrier property of the tube container 10 can be improved. Further, since the barrier layer 55 is an aluminum foil, the formability of the first ridge line 11 and the second ridge line 12 can be further improved, and the shapes of the first ridge line 11 and the second ridge line 12 can be effectively maintained.

[0101] Further, according to the present embodiment, the laminate 50 further includes a protective layer 59 that constitutes the outer surface 501 of the laminate 50 and protects the first sealant layer 51. Thereby, it is possible to suppress damage to the first sealant layer 51. For this reason, even when the body tubes 30 rub against each other, it is possible to suppress damage to the outer surface of the body tube 30 and maintain the appearance of the tube container 10.

[0102] Further, according to the present embodiment, at least one of the first sealant layer 51, the base material layer 52, and the second sealant layer 53 contains a biomass-derived component. Thereby, the amount of carbon dioxide emissions discharged in a series of steps for producing the body tube 30 can be reduced. For this reason, the environmental load of the tube container 10 can be reduced.

[0103] Further, according to the present embodiment, the base material layer 52 contains paper. Thereby, the amount of resin used for the laminate 50 can be reduced. For this reason, since the amount of plastic used for the body tube 30 can be reduced, the environmental load of the tube container 10 can be reduced.

[0104] In addition, in the above-described present embodiment, the example in which the first ridge line 11 protrudes toward the outer surface 501 side and the second ridge line 12 protrudes toward the inner surface 502 side has been described, but the present invention is not limited thereto. For example, although not shown, the first ridge line 11 may protrude toward the inner surface 502 side and the second ridge line 12 may protrude toward the outer surface 501 side.

[0105] In addition, in the above-described present embodiment, the example in which the first ridge line 11 includes the first curve 11a and the second curve 11b has been described, but the present invention is not limited thereto. For example, although not shown, the first ridge line 11 and the second ridge line 12 may be configured to exhibit an arbitrary pattern.

Example

[0106] Next, specific examples in the above embodiment will be described.

[0107] (Example 1) First, the laminate 50 shown in FIG. 2A was produced. At this time, first, as the base material layer 52, a polyethylene terephthalate film (manufactured by Toyobo Co., Ltd., EB512 (trade name), thickness 12 μm) was prepared. Subsequently, the second printing layer 54b was formed on the polyethylene terephthalate film.

[0108] Next, polyethylene as the first adhesive layer 57a was extruded onto the above-described second printing layer 54b via an anchor coat material. The thickness of the first adhesive layer 57a was set to 20 μm. In this way, the first intermediate of the laminate 50 was produced. The layer configuration of the obtained first intermediate is as follows. PET / Print / AC / Adhesion In the above, "PET" means polyethylene terephthalate (the same applies hereinafter). Also, " / " represents the boundary between layers (the same applies hereinafter). Also, "Print" means a printing layer (the same applies hereinafter). Also, "AC" means an anchor coat layer (the same applies hereinafter). Further, "Adhesion" means an adhesive layer (the same applies hereinafter).

[0109] Next, as the intermediate layer 58, an opalescent polyethylene film (manufactured by DNP Technopak Co., Ltd., SR-WN2 (trade name), thickness 100 μm) was prepared. Also, as the barrier layer 55, an aluminum foil (thickness 10 μm) was prepared. Further, as the second sealant layer 53, a linear low-density polyethylene film (manufactured by DNP Technopak Co., Ltd., SR-WN2 (trade name), thickness 100 μm) was prepared.

[0110] Next, the intermediate layer 58 was laminated on the first adhesive layer 57a of the first intermediate. Also, an ethylene-methacrylic acid copolymer as the second adhesive layer 57b was extruded onto the intermediate layer 58, and the barrier layer 55 was laminated on the second adhesive layer 57b by an extrusion lamination method. The thickness of the second adhesive layer 57b was set to 20 μm. Further, an ethylene-methacrylic acid copolymer as the third adhesive layer 57c was extruded onto the barrier layer 55, and the second sealant layer 53 was laminated on the third adhesive layer 57c by an extrusion lamination method. The thickness of the third adhesive layer 57c was set to 30 μm. In this way, the second intermediate of the laminate 50 was produced. The layer configuration of the obtained second intermediate is as follows. PET / Print / AC / Adhesion / Opalescent PE / Adhesion / Aluminum Foil / Adhesion / PE In the above, "milky white PE" means a milky white polyethylene film (the same shall apply hereinafter). Also, "ALM foil" means an aluminum foil (the same shall apply hereinafter). Further, "PE" means polyethylene (the same shall apply hereinafter).

[0111] Next, polyethylene as the third resin layer 51c of the first sealant layer 51 was extruded onto the base material layer 52 of the second intermediate via an anchor coat material. Note that the thickness of the third resin layer 51c was set to 20 μm.

[0112] Next, a linear low-density polyethylene film (manufactured by DNP Technopack Co., Ltd., SR-WN2 (trade name), thickness 60 μm) was prepared as the second resin layer 51b of the first sealant layer 51, and the second resin layer 51b was laminated onto the third resin layer 51c by an extrusion lamination method. Further, polyethylene as the first resin layer 51a was extruded onto the second resin layer 51b, and the first resin layer 51a as the first sealant layer 51 was laminated onto the second resin layer 51b. Note that the thickness of the first resin layer 51a was set to 30 μm. In this way, the third intermediate of the laminate 50 was produced. The layer configuration of the obtained third intermediate is as follows. PE / PE / PE / AC / PET / print / AC / attach / milky white PE / attach / ALM foil / attach / PE

[0113] Subsequently, the first printing layer 54a was formed on the first resin layer 51a of the first sealant layer 51. Thereafter, a varnish was printed on the first printing layer 54a as a protective layer 59 for protecting the first printing layer 54a. In this way, the laminate intermediate 50a was produced. The layer configuration of the obtained laminate intermediate 50a is as follows. varnish / print / PE / PE / PE / AC / PET / print / AC / attach / milky white PE / attach / ALM foil / attach / PE

[0114] Thereafter, the laminate intermediate 50a was embossed to produce the laminate 50. At this time, the laminate intermediate 50a with a length of about 1000 m was continuously embossed. Also, on the outer surface 501, the height H1 from the second ridge line 12 to the first ridge line 11 was 253.8 μm. Further, on the inner surface 502, the height H2 from the second ridge line 12 to the first ridge line 11 was 263.7 μm. Note that the height H1 and the height H2 were measured using a laser microscope (manufactured by Keyence Corporation, shape analysis laser microscope VK-8710 (product name)), respectively.

[0115] (1) Formability evaluation Next, a formability evaluation was performed when producing the laminate 50 from the laminate intermediate 50a. At this time, it was observed whether the laminate 50 could be easily peeled off from the cooling roll 85 and the rubber roll 86. Also, it was observed whether clogging or the like occurred on the surfaces of the cooling roll 85 and the rubber roll 86.

[0116] (2) Evaluation of the sliding time of the contents In addition, an evaluation of the sliding time of the contents was performed. At this time, first, the obtained laminate 50 was attached to the wall surface. At this time, the laminate 50 was attached to the wall surface such that the outer surface 501 of the laminate 50 faced the wall surface and the Y direction (the flow direction of the laminate 50) was parallel to the vertical direction. Next, the contents were applied to the inner surface 502 of the laminate 50. At this time, about 3 g of the contents were applied to the inner surface 502 of the laminate 50 so that the contents became a columnar shape with a diameter of about 4 mm and a height of about 5 mm. As the contents, treatment (manufactured by Kracie Co., Ichihada Treatment (product name)) and hand cream (manufactured by Kose Co., Q10 (product name)) were used. Then, the time when the applied contents slid 100 mm on the inner surface 502 of the laminate 50 was measured. The measurement was performed three times for each content, and each average value was taken as the sliding time.

[0117] (3) Scratch resistance evaluation In addition, a scratch resistance evaluation was conducted. At this time, first, using the obtained laminate 50, two tube containers 10 shown in FIG. 1 were fabricated. Next, the body tubes 30 of the tube containers 10 were rubbed against each other, and the scratches generated on the body tubes 30 were observed.

[0118] (4) Barrier property evaluation In addition, a barrier property evaluation was conducted. At this time, the oxygen permeability of the laminate 50 (100 mm × 100 mm) was measured using the MOCON method in an environment of 23°C × 90% RH in accordance with JIS K7126-2 (isobaric method). Also, the water vapor permeability of the laminate 50 (100 mm × 100 mm) was measured using the MOCON method in an environment of 40°C × 90% RH in accordance with JIS K7129B.

[0119] (5) Loop stiffness evaluation Furthermore, a loop stiffness evaluation was conducted. At this time, first, the loop stiffness in the flow direction (Y direction) of the laminate 50 was measured. Here, the loop stiffness is a parameter representing the firmness of the laminate 50.

[0120] At this time, first, a test piece was fabricated by cutting out the laminate 50 to a width of 15 mm and a length of 100 mm. At this time, the test piece was cut out so that the longitudinal direction of the test piece was aligned with the flow direction (Y direction) of the laminate 50. Next, both ends in the longitudinal direction of the test piece were sandwiched by a pair of chucks (not shown), and the test piece was rounded into a loop by bringing the chucks closer to each other. At this time, the loop length was set to 70 mm. Next, the loop stiffness was measured by pushing the test piece with a pressure head (not shown). When pushing the test piece with the pressure head, the vertical distance between the chuck sandwiching the test piece and the pressure head at the initial position was 15 mm. Then, the pressure head was lowered from the initial position to push the test piece with the pressure head. As the measuring instrument, a loop stiffness tester (registered trademark) manufactured by Toyo Seiki Seisakusho Co., Ltd. was used. The load range was set to 5000 mN, the compression speed was set to 3.3 mm / s, and the time for the pressure head to push the test piece was set to 3 seconds.

[0121] In addition, the loop stiffness in the width direction (X direction) of the laminate 50 was measured. At this time, the loop stiffness was measured in the same manner as the measurement of the loop stiffness in the flow direction of the laminate 50, except that the test piece was cut out so that the longitudinal direction of the test piece coincided with the width direction of the laminate 50.

[0122] (Example 2) First, the laminate 50 shown in FIG. 2B was produced. At this time, first, as the base material layer 52, a polyethylene terephthalate film (manufactured by Toyobo Co., Ltd., EB512 (trade name), thickness 12 μm) was prepared. In addition, as the first intermediate layer 58a, a polyethylene terephthalate film (manufactured by Toray Film Processing Co., Ltd., VM-PET 1310 (trade name), thickness 12 μm) provided with an aluminum vapor deposition layer (first barrier layer 55a) was prepared.

[0123] Next, the polyethylene terephthalate film for the base material layer 52 and the polyethylene terephthalate film for the first intermediate layer 58a were adhered by the dry lamination method to produce the first intermediate body of the laminate 50. The layer structure of the obtained first intermediate body is as follows. PET / DL / ALM / PET In the above, "DL" means an adhesive layer by the dry lamination method using a two-component curable urethane adhesive (the same applies hereinafter). Further, "ALM" means an aluminum vapor deposition layer (the same applies hereinafter).

[0124] In addition, as the second intermediate layer 58b, an opal polyethylene film (manufactured by Tamapoli Co., Ltd., HD White (trade name), thickness 60 μm) was prepared.

[0125] Next, polyethylene as the second adhesive layer 57b was extruded onto the first intermediate layer 58a of the first intermediate body via an anchor coat material, and the second intermediate layer 58b was laminated onto the second adhesive layer 57b by the extrusion lamination method. The thickness of the second adhesive layer 57b was set to 20 μm. In this way, the second intermediate body of the laminate 50 was produced. The layer structure of the obtained second intermediate body is as follows. PET / DL / ALM / PET / AC / Adhesive / Milky PE

[0126] Next, as the second barrier layer 55b, an aluminum foil (thickness: 10 μm) was prepared.

[0127] Next, on the second intermediate layer 58b of the second intermediate body, an ethylene-methacrylic acid copolymer as the third adhesive layer 57c was extruded via an anchor coat material, and the second barrier layer 55b was laminated on the third adhesive layer 57c by an extrusion lamination method. The thickness of the third adhesive layer 57c was set to 20 μm. Further, an ethylene-methacrylic acid copolymer as the fourth adhesive layer 57d was extruded on the second barrier layer 55b, and the second resin layer 53b as the second sealant layer 53 was laminated on the fourth adhesive layer 57d. The thickness of the fourth adhesive layer 57d was set to 30 μm, and the thickness of the second resin layer 53b was set to 25 μm. Furthermore, low-density polyethylene (manufactured by Nippon Polyethylene Co., Ltd., Novatech LC602A (trade name)) as the first resin layer 53a was extruded on the second resin layer 53b as the second sealant layer 53, and the first resin layer 53a was laminated on the second resin layer 53b as the second sealant layer 53. The thickness of the first resin layer 53a was set to 25 μm. In this way, the third intermediate body of the laminate 50 was produced. The layer structure of the obtained third intermediate body is as follows. PET / DL / ALM / PET / AC / Adhesive / Milky PE / AC / Adhesive / ALM Foil / Adhesive / PE / PE

[0128] Next, polyethylene as the second resin layer 51b of the first sealant layer 51 was extruded on the base material layer 52 of the third intermediate body via an anchor coat material. The thickness of the second resin layer 51b was set to 20 μm.

[0129] Next, low-density polyethylene (manufactured by Japan Polyethylene Corporation, Novatec LC602A (trade name)) as the first resin layer 51a was extruded onto the second resin layer 51b as the first sealant layer 51, and the first resin layer 51a as the first sealant layer 51 was laminated onto the second resin layer 51b. The thickness of the first resin layer 51a was set to 30 μm. In this way, the fourth intermediate of the laminate 50 was produced. The layer structure of the obtained fourth intermediate is as follows. PE / PE / AC / PET / DL / ALM / PET / AC / Adh / Milky PE / AC / Adh / ALM foil / Adh / PE / PE

[0130] Subsequently, the first printing layer 54a was formed on the first resin layer 51a of the first sealant layer 51. Then, as a protective layer 59 for protecting the first printing layer 54a, varnish was printed on the first printing layer 54a. In this way, the laminate intermediate 50a was produced. The layer structure of the obtained laminate intermediate 50a is as follows. Varnish / Print / PE / PE / AC / PET / DL / ALM / PET / AC / Adh / Milky PE / AC / Adh / ALM foil / Adh / PE / PE

[0131] Next, the laminate intermediate 50a was embossed to produce the laminate 50. At this time, the laminate intermediate 50a with a length of about 1000 m was continuously embossed. Also, on the outer surface 501, the height H1 from the second ridge line 12 to the first ridge line 11 was 253.8 μm. Also, on the inner surface 502, the height H2 from the second ridge line 12 to the first ridge line 11 was 263.7 μm.

[0132] Thereafter, in the same manner as in Example 1, formability evaluation, evaluation of the sliding time of the content, scratch resistance evaluation, barrier property evaluation, and loop stiffness evaluation were performed.

[0133] (Example 3) First, a laminate 50 shown in FIG. 2C was fabricated. At this time, first, as the base material layer 52, a polyethylene terephthalate film (manufactured by Toyobo Co., Ltd., EB512 (trade name), thickness 12 μm) was prepared. Subsequently, a printing layer 54 was formed on the polyethylene terephthalate film.

[0134] Also, as the first intermediate layer 58a, a polyethylene terephthalate film (manufactured by Toray Film Processing Co., Ltd., VM-PET 1310 (trade name), thickness 12 μm) provided with an aluminum vapor deposition layer (first barrier layer 55a) was prepared. Also, as the second intermediate layer 58b, a linear low-density polyethylene film (manufactured by DNP Techno Pack Co., Ltd., SR-WN2 (trade name), thickness 80 μm) was prepared.

[0135] Next, the polyethylene terephthalate film for the base material layer 52, the polyethylene terephthalate film for the first intermediate layer 58a, and the linear low-density polyethylene film for the second intermediate layer 58b were adhered by the dry lamination method to produce a first intermediate body of the laminate 50. The layer configuration of the obtained first intermediate body is as follows. PET / Print / DL / ALM / PET / DL / PE

[0136] Subsequently, as the second barrier layer 55b, an aluminum foil (thickness 9 μm) was prepared. Also, as the second sealant layer 53, a linear low-density polyethylene film (manufactured by DNP Techno Pack Co., Ltd., SR-XN (trade name), thickness 100 μm) was prepared.

[0137] Next, an ethylene-methacrylic acid copolymer as the third adhesive layer 57c was extruded onto the second intermediate layer 58b of the first intermediate via an anchor coating material, and the second barrier layer 55b was laminated onto the third adhesive layer 57c by an extrusion lamination method. The thickness of the third adhesive layer 57c was set to 20 μm. Further, an ethylene-methacrylic acid copolymer as the fourth adhesive layer 57d was extruded onto the second barrier layer 55b, and the second sealant layer 53 was laminated onto the fourth adhesive layer 57d. The thickness of the fourth adhesive layer 57d was set to 30 μm. In this way, the second intermediate of the laminate 50 was produced. The layer structure of the obtained second intermediate is as follows. PET / Print / DL / ALM / PET / DL / PE / AC / Adhesion / ALM Foil / Adhesion / PE

[0138] Next, polyethylene as the third resin layer 51c of the first sealant layer 51 was extruded onto the base material layer 52 of the second intermediate via an anchor coating material. The thickness of the third resin layer 51c was set to 20 μm.

[0139] Next, a linear low-density polyethylene film (manufactured by DNP Technopack Co., Ltd., SR-WN2 (trade name), thickness 60 μm) was prepared as the second resin layer 51b of the first sealant layer 51, and the second resin layer 51b was laminated onto the third resin layer 51c by an extrusion lamination method. Further, low-density polyethylene (manufactured by Japan Polyethylene Corporation, Novatech LC602A (trade name)) as the first resin layer 51a was extruded onto the second resin layer 51b, and the first resin layer 51a as the first sealant layer 51 was laminated onto the second resin layer 51b. The thickness of the first resin layer 51a was set to 30 μm. In this way, the third intermediate of the laminate 50 was produced. The layer structure of the obtained third intermediate is as follows. PE / PE / PE / AC / PET / Print / DL / ALM / PET / DL / PE / AC / Adhesion / ALM Foil / Adhesion / PE

[0140] Subsequently, as a protective layer 59 for protecting the first sealant layer 51, varnish was printed on the first resin layer 51a of the first sealant layer 51. In this way, the laminate intermediate 50a was produced. The layer configuration of the obtained laminate intermediate 50a is as follows. Varnish / PE / PE / PE / AC / PET / Print / DL / ALM / PET / DL / PE / AC / Adhesive / ALM foil / Adhesive / PE

[0141] Next, the laminate intermediate 50a was embossed to produce the laminate 50. At this time, the laminate intermediate 50a having a length of about 1000 m was continuously embossed. Also, on the outer surface 501, the height H1 from the second ridge line 12 to the first ridge line 11 was 253.8 μm. Also, on the inner surface 502, the height H2 from the second ridge line 12 to the first ridge line 11 was 263.7 μm.

[0142] Thereafter, in the same manner as in Example 1, formability evaluation, slipping time evaluation of the contents, scratch resistance evaluation, barrier property evaluation, and loop stiffness evaluation were performed.

[0143] (Example 4) First, the laminate 50 shown in FIG. 2D was produced. At this time, first, as the barrier layer 55, an aluminum foil (thickness 9 μm) was prepared. Also, as the intermediate layer 58, a polyethylene terephthalate film (manufactured by Toyobo Co., Ltd., E5200 (trade name), thickness 12 μm) was prepared.

[0144] Next, the aluminum foil for the barrier layer 55 and the polyethylene terephthalate film for the intermediate layer 58 were adhered by the dry lamination method to produce the first intermediate of the laminate 50. The layer configuration of the obtained first intermediate is as follows. ALM foil / DL / PET

[0145] Also, as the base material layer 52, a printing paper (manufactured by Oji Paper Co., Ltd., Nagoya Sharyu Oji, basis weight 76 g / m 2 ) was prepared. Subsequently, a printing layer 54 was formed on the base material layer 52.

[0146] Next, an ethylene-methacrylic acid copolymer as the first adhesive layer 57a was extruded onto the above-described base material layer 52, and the barrier layer 55 of the first intermediate was laminated onto the first adhesive layer 57a by an extrusion lamination method. The thickness of the first adhesive layer 57a was set to 20 μm. In this way, the second intermediate of the laminate 50 was produced. The layer configuration of the obtained second intermediate is as follows. Print / Photographic Paper / Adhesive / ALM Foil / DL / PET

[0147] Next, polyethylene as the third resin layer 51c of the first sealant layer 51 was extruded onto the printing layer 54 of the second intermediate. The thickness of the third resin layer 51c was set to 20 μm.

[0148] Next, a linear low-density polyethylene film (manufactured by DNP Technopack Co., Ltd., SR-WN2 (trade name), thickness 60 μm) was prepared as the second resin layer 51b of the first sealant layer 51, and the second resin layer 51b was laminated onto the third resin layer 51c by an extrusion lamination method. Further, polyethylene as the first resin layer 51a was extruded onto the second resin layer 51b, and the first resin layer 51a as the first sealant layer 51 was laminated onto the second resin layer 51b. The thickness of the first resin layer 51a was set to 20 μm. In this way, the third intermediate of the laminate 50 was produced. The layer configuration of the obtained third intermediate is as follows. PE / PE / PE / Print / Photographic Paper / Adhesive / ALM Foil / DL / PET

[0149] Next, polyethylene as the second resin layer 53b of the second sealant layer 53 was extruded onto the intermediate layer 58 of the third intermediate via an anchor coat material. The thickness of the second resin layer 53b was set to 20 μm.

[0150] Next, a linear low-density polyethylene film (manufactured by DNP Technopack Co., Ltd., SR-WN2 (trade name), thickness 60 μm) was prepared as the first resin layer 53a of the second sealant layer 53, and the first resin layer 53a was laminated onto the second resin layer 53b by an extrusion lamination method. In this way, the laminate intermediate 50a was produced. The layer configuration of the obtained laminate intermediate 50a is as follows. PE / PE / PE / Printing / Sunny paper / Connection / ALM foil / DL / PET / AC / PE / PE

[0151] Next, the laminate intermediate 50a was embossed to produce the laminate 50. At this time, the laminate intermediate 50a with a length of about 1000 m was continuously embossed. Also, on the outer surface 501, the height H1 from the second ridge line 12 to the first ridge line 11 was 253.8 μm. Also, on the inner surface 502, the height H2 from the second ridge line 12 to the first ridge line 11 was 263.7 μm.

[0152] Thereafter, in the same manner as in Example 1, formability evaluation, evaluation of the sliding time of the content, evaluation of scratch resistance, evaluation of barrier properties, and evaluation of loop stiffness were performed.

[0153] (Example 5) First, the laminate 50 shown in FIG. 2E was produced. At this time, first, linear low-density polyethylene (manufactured by Dow Chemical, DOWLEX2098G (trade name), density 0.926 g / cm 3 ) as the first resin layer 52a of the base material layer 52, high-density polyethylene (manufactured by ExxonMobil, HTA108 (trade name), density 0.961 g / cm 3 ) as the second resin layer 52b, and linear low-density polyethylene (manufactured by ExxonMobil, Exceed2018HA (trade name), density 0.918 g / cm 3 ) as the third resin layer 52c were prepared. Then, these resins were coextruded and formed into a film by the inflation method to obtain a resin film as the base material layer 52. The thickness of the first resin layer 52a was 12.5 μm, the thickness of the second resin layer 52b was 25 μm, and the thickness of the third resin layer 52c was 12.5 μm.

[0154] Next, on the surface of the first resin layer 52a of the base material layer 52, an aluminum vapor deposition layer as the first barrier layer 55a was formed by the PVD method. The thickness of the aluminum vapor deposition layer was 20 nm. In this way, the first intermediate of the laminate 50 was produced. The layer structure of the obtained first intermediate is as follows. ALM / PE / PE / PE

[0155] Next, linear low-density polyethylene (manufactured by Dow Chemical, DOWLEX 2045G (trade name), density 0.920 g / cm 3 ), an adhesive resin (manufactured by Mitsui Chemicals, Admer NF557 (trade name)) as the third adhesive layer 57c, an ethylene-vinyl alcohol copolymer (manufactured by Kuraray, Eval H171B (trade name), density 1.17 g / cm 3 , ethylene content 38 mol%) as the second barrier layer 55b, an adhesive resin (manufactured by Mitsui Chemicals, Admer NF557 (trade name)) as the fourth adhesive layer 57d, and linear low-density polyethylene (manufactured by Dow Chemical, DOWLEX 2045G (trade name), density 0.920 g / cm 3 ) were prepared. Then, these resins were coextrusion-molded by the inflation method to produce a second intermediate of the laminate 50.

[0156] In the second intermediate, the thickness of the first intermediate layer 58a was 21.9 μm, the thickness of the third adhesive layer 57c was 6.25 μm, the thickness of the second barrier layer 55b was 18.75 μm, the thickness of the fourth adhesive layer 57d was 6.25 μm, and the thickness of the second intermediate layer 58b was 21.9 μm. The layer structure of the obtained second intermediate is as follows. PE / Adhesion / EVOH / Adhesion / PE

[0157] Next, low-density polyethylene (manufactured by Sumitomo Chemical, Sumikasen L705 (trade name), density: 0.919 g / cm 3 ) as the second adhesive layer 57b was extruded onto the third resin layer 52c of the base material layer 52 of the first intermediate, and the second intermediate was laminated onto the second adhesive layer 57b by the extrusion lamination method. The thickness of the second adhesive layer 57b was 15 μm. In this way, a third intermediate of the laminate 50 was produced. The layer structure of the obtained third intermediate is as follows. ALM / PE / PE / PE / Adhesion / PE / Adhesion / EVOH / Adhesion / PE

[0158] Next, polyethylene (DOWLEX 2038.68G, AB-MB 101820-K manufactured by The Dow Chemical Company) as the first resin layer 53a of the second sealant layer 53, a mixture of polyethylene (ELITE 5538G (trade name) manufactured by The Dow Chemical Company and LDPE LD2420F (trade name) manufactured by PTT CHEMICAL) as the second resin layer 53b, and a mixture of polyethylene (DOWLEX 2038.68G (trade name) manufactured by The Dow Chemical Company and LDPE LD2420H (trade name) manufactured by PTT CHEMICAL) as the third resin layer 53c were prepared.

[0159] Next, low-density polyethylene (Sumika Seal L705 (trade name), density: 0.919 g / cm 3 ) as the fifth adhesive layer 57e was extruded onto the second intermediate layer 58b of the third intermediate, and the first resin layer 53a, the second resin layer 53b, and the third resin layer 53c as the second sealant layer 53 were laminated onto the fifth adhesive layer 57e by a coextrusion lamination method. The thickness of the first resin layer 53a was 30 μm, the thickness of the second resin layer 53b was 60 μm, and the thickness of the third resin layer 53c was 30 μm. In this way, the fourth intermediate of the laminate 50 was produced. The layer structure of the obtained fourth intermediate is as follows. ALM / PE / PE / PE / Adh / PE / Adh / EVOH / Adh / PE / Adh / PE / PE / PE

[0160] Next, polyethylene as the first resin layer 51a of the first sealant layer 51 (a mixture of ENABLE 2705MC (trade name) manufactured by EXXON CHEMICAL, EXCEED 1327MA (trade name) manufactured by EXXON CHEMICAL, and LDPE LD2420F (trade name) manufactured by PTT CHEMICAL), polyethylene as the second resin layer 51b (a mixture of ENABLE 3505MC (trade name) manufactured by EXXON CHEMICAL, ELITE 5860G1 (trade name) manufactured by DOW CHEMICAL, and LDPE LD2420F (trade name) manufactured by PTT CHEMICAL), and polyethylene as the third resin layer 51c (a mixture of ENABLE 2705MC (product surface) manufactured by EXXON CHEMICAL, EXCEED 1327MA (product surface) manufactured by EXXON CHEMICAL, and LDPE LD2420F (product surface) manufactured by PTT CHEMICAL) were prepared. Then, these resins were coextruded into a film by the inflation method to produce the fifth intermediate of the laminate 50.

[0161] In the fifth intermediate, the thickness of the first resin layer 51a was 18.75 μm, the thickness of the second resin layer 51b was 37.5 μm, and the thickness of the third resin layer 51c was 18.75 μm. The layer configuration of the obtained fifth intermediate is as follows. PE / PE / PE

[0162] Next, the fourth intermediate and the fifth intermediate were adhered by the dry lamination method to produce the sixth intermediate of the laminate 50. The layer configuration of the obtained sixth intermediate is as follows. PE / PE / PE / DL / ALM / PE / PE / PE / Adh / PE / Adh / EVOH / Adh / PE / Adh / PE / PE / PE

[0163] Subsequently, the first printing layer 54a was formed on the first resin layer 51a of the first sealant layer 51. Then, as a protective layer 59 for protecting the first printing layer 54a, varnish was printed on the first printing layer 54a. In this way, the laminate intermediate 50a was produced. The layer configuration of the obtained laminate intermediate 50a is as follows. Varnish / Print / PE / PE / PE / DL / ALM / PE / PE / PE / Adhesive / PE / Adhesive / EVOH / Adhesive / PE / Adhesive / PE / PE / PE

[0164] Next, the laminate intermediate 50a was embossed to produce the laminate 50. At this time, the laminate intermediate 50a with a length of about 1000 m was continuously embossed. Also, on the outer surface 501, the height H1 from the second ridge line 12 to the first ridge line 11 was 196.1 μm. Further, on the inner surface 502, the height H2 from the second ridge line 12 to the first ridge line 11 was 187.7 μm.

[0165] Thereafter, in the same manner as in Example 1, formability evaluation, evaluation of the sliding time of the content, evaluation of scratch resistance, evaluation of barrier properties, and evaluation of loop stiffness were performed.

[0166] (Example 6) First, the laminate 50 shown in FIG. 2F was produced. At this time, first, as the base material layer 52, a polyethylene terephthalate film (manufactured by Toyobo Co., Ltd., EB512 (trade name), thickness 12 μm) was prepared. Subsequently, a printing layer 54 was formed on the polyethylene terephthalate film.

[0167] Also, as the intermediate layer 58, a polyethylene terephthalate film (manufactured by Oike Kogyo Co., Ltd., Tetraite EXC - B (trade name), thickness 12 μm) provided with an aluminum vapor deposition layer (barrier layer 55) was prepared. Further, as the second sealant layer 53, a polyethylene film (manufactured by DNP Techno Pack Co., Ltd., BCO - LZ27N (trade name), thickness 110 μm) was prepared.

[0168] Next, the polyethylene terephthalate film for the base material layer 52, the polyethylene terephthalate film for the intermediate layer 58, and the polyethylene film for the second sealant layer 53 were adhered by the dry lamination method to produce the first intermediate of the laminate 50. The layer configuration of the obtained first intermediate is as follows. PET / Print / DL / ALM / PET / DL / PE

[0169] Also, as the first sealant layer 51, a polyethylene film (manufactured by DNP Technopak Co., Ltd., BCO-LZ27N (trade name), thickness 90 μm) was prepared.

[0170] Next, a polyethylene terephthalate film for the first sealant layer 51 and the first intermediate were adhered by the dry lamination method to produce a laminate intermediate 50a. The layer structure of the obtained laminate intermediate 50a is as follows. PE / DL / PET / Print / DL / ALM / PET / DL / PE

[0171] Next, the laminate intermediate 50a was embossed to produce a laminate 50. At this time, the laminate intermediate 50a with a length of about 1000 m was continuously embossed. Also, on the outer surface 501, the height H1 from the second ridge line 12 to the first ridge line 11 was 196.1 μm. Also, on the inner surface 502, the height H2 from the second ridge line 12 to the first ridge line 11 was 187.7 μm.

[0172] Thereafter, in the same manner as in Example 1, a formability evaluation, a slip time evaluation of the content, a scratch resistance evaluation, a barrier property evaluation, and a loop stiffness evaluation were performed.

[0173] (Comparative Example 1) A slip time evaluation of the content, a scratch resistance evaluation, a barrier property evaluation, and a loop stiffness evaluation were performed in the same manner as in Example 1, except that the laminate intermediate 50a was not embossed. That is, a slip time evaluation of the content, a scratch resistance evaluation, a barrier property evaluation, and a loop stiffness evaluation were performed on the laminate intermediate 50a in the same manner as in Example 1. The layer structure of the laminate (laminate intermediate 50a) according to Comparative Example 1 is as follows. Varnish / Print / PE / PE / PE / AC / PET / Print / AC / Adhesive / Milky PE / Adhesive / ALM Foil / Adhesive / PE

[0174] (Comparative Example 2) Except that the laminate intermediate 50a was not embossed, the evaluation of the sliding time of the content, the evaluation of scratch resistance, the evaluation of barrier properties, and the evaluation of loop stiffness were carried out in the same manner as in Example 2. That is, for the laminate intermediate 50a, the evaluation of the sliding time of the content, the evaluation of scratch resistance, the evaluation of barrier properties, and the evaluation of loop stiffness were carried out in the same manner as in Example 2. The layer structure of the laminate (laminate intermediate 50a) according to Comparative Example 2 is as follows. Varnish / Print / PE / PE / AC / PET / DL / ALM / PET / AC / Adhesive / Milky PE / AC / Adhesive / ALM Foil / Adhesive / PE / PE

[0175] (Comparative Example 3) Except that the laminate intermediate 50a was not embossed, the evaluation of the sliding time of the content, the evaluation of scratch resistance, the evaluation of barrier properties, and the evaluation of loop stiffness were carried out in the same manner as in Example 3. That is, for the laminate intermediate 50a, the evaluation of the sliding time of the content, the evaluation of scratch resistance, the evaluation of barrier properties, and the evaluation of loop stiffness were carried out in the same manner as in Example 3. The layer structure of the laminate (laminate intermediate 50a) according to Comparative Example 3 is as follows. Varnish / PE / PE / PE / AC / PET / Print / DL / ALM / PET / DL / PE / AC / Adhesive / ALM Foil / Adhesive / PE

[0176] (Comparative Example 4) Except that the laminate intermediate 50a was not embossed, the evaluation of the sliding time of the content, the evaluation of scratch resistance, the evaluation of barrier properties, and the evaluation of loop stiffness were carried out in the same manner as in Example 4. That is, for the laminate intermediate 50a, the evaluation of the sliding time of the content, the evaluation of scratch resistance, the evaluation of barrier properties, and the evaluation of loop stiffness were carried out in the same manner as in Example 4. The layer structure of the laminate (laminate intermediate 50a) according to Comparative Example 4 is as follows. PE / PE / PE / Print / Photographic Paper / Adhesive / ALM Foil / DL / PET / AC / PE / PE

[0177] (Comparative Example 5) Except that the laminate intermediate 50a was not embossed, the evaluation of the sliding time of the content, the evaluation of scratch resistance, the evaluation of barrier properties, and the evaluation of loop stiffness were carried out in the same manner as in Example 5. That is, for the laminate intermediate 50a, the evaluation of the sliding time of the content, the evaluation of scratch resistance, the evaluation of barrier properties, and the evaluation of loop stiffness were carried out in the same manner as in Example 5. The layer structure of the laminate (laminate intermediate 50a) according to Comparative Example 5 is as follows. Varnish / Print / PE / PE / PE / DL / ALM / PE / PE / PE / Adhesive / PE / Adhesive / EVOH / Adhesive / PE / Adhesive / PE / PE / PE

[0178] (Comparative Example 6) Except that the laminate intermediate 50a was not embossed, the evaluation of the sliding time of the content, the evaluation of scratch resistance, the evaluation of barrier properties, and the evaluation of loop stiffness were carried out in the same manner as in Example 6. That is, for the laminate intermediate 50a, the evaluation of the sliding time of the content, the evaluation of scratch resistance, the evaluation of barrier properties, and the evaluation of loop stiffness were carried out in the same manner as in Example 6. The layer structure of the laminate (laminate intermediate 50a) according to Comparative Example 6 is as follows. PE / DL / PET / Print / DL / ALM / PET / DL / PE

[0179] The above results are shown in Tables 1 to 5. Table 1 shows the values of height H1 and height H2, and the results of the formability evaluation. Table 2 shows the results of the evaluation of the sliding time of the content. Table 3 shows the results of the scratch resistance evaluation. Table 4 shows the results of the barrier property evaluation. Table 5 shows the results of the loop stiffness evaluation.

[0180]

Table 1

[0181]

Table 2

[0182]

Table 3

[0183]

Table 4

[0184]

Table 5

[0185] Note that in Table 1 above, "◎" in the evaluation means that the laminate 50 was easily peeled from the cooling roll 85 and the rubber roll 86, and there was no clogging or the like on the surfaces of the cooling roll 85 and the rubber roll 86.

[0186] Also, in Table 3 above, "◎" in the evaluation means that even when the body tubes were strongly rubbed against each other, it was difficult for the body tubes to be scratched. Also, "○" in the evaluation means that when the body tubes were strongly rubbed against each other, it was easy for the body tubes to be scratched, but when the body tubes were weakly rubbed against each other, it was difficult for the body tubes to be scratched.

[0187] As a result, as shown in Table 1, in the laminates 50 according to Examples 1 to 6, the formability during embossing was good.

[0188] Also, as shown in Table 2, in the laminates (laminate intermediates) according to Comparative Examples 1 to 6, when the content was treatment, the sliding time was 90 minutes or more. On the other hand, in the laminate 50 according to Examples 1 to 6, when the content was treatment, the sliding time was 70 minutes or less. Further, in the laminates (laminate intermediates) according to Comparative Examples 1 to 4 and Comparative Example 6, when the content was hand cream, the sliding time was 180 minutes or more. On the other hand, in the laminate 50 according to Examples 1 to 4 and Example 6, when the content was hand cream, the sliding time was 150 minutes or less. Furthermore, in the laminate (laminate intermediate) according to Comparative Example 5, when the content was hand cream, the sliding time was 120 minutes. On the other hand, in the laminate 50 according to Example 5, when the content was hand cream, the sliding time was 60 minutes.

[0189] Thus, it was found that in the laminate 50 according to Examples 1 to 6, the content was likely to slide. For this reason, it was found that in the tube container 10 using the laminate 50 according to Examples 1 to 6, the content could be easily taken out from the tube container 10.

[0190] Also, as shown in Table 3, in the laminate 50 according to Examples 1 to 6, even when embossing was performed, the dent resistance of the body tube could be kept good as in Comparative Examples 1 to 6 without embossing.

[0191] Also, as shown in Table 4, in the laminate 50 according to Examples 1 to 5, even when embossing was performed, the oxygen barrier property could be kept good as in Comparative Examples 1 to 5 without embossing. Further, as shown in Table 4, in the laminate 50 according to Examples 1 to 6, even when embossing was performed, the water vapor barrier property could be kept good as in Comparative Examples 1 to 6 without embossing.

[0192] Furthermore, as shown in Table 5, in the laminate 50 according to Example 1, Example 3, and Example 5, by performing embossing, the loop stiffness in the width direction (X direction) could be made significantly smaller than the loop stiffness in the flow direction (Y direction). In this way, when the loop stiffness in the width direction (X direction) becomes small, when taking out the contents from the tube container 10, the body tube 30 can be easily crushed by the fingers of the consumer. Therefore, it becomes easy to take out the contents from the tube container 10.

[0193] It is also possible to appropriately combine a plurality of components disclosed in the above embodiments as needed. Alternatively, some components may be deleted from all the components shown in the above embodiments.

Explanation of Reference Numerals

[0194] 10 Tube container 10A Tube container with cap 11 First ridge line 11a First curve 11b Second curve 12 Second ridge line 20 Cap 30 Body tube 31 One end 32 Body seal portion 35 End 40 Head member 50 Laminate 501 Outer surface 502 Inner surface 51 First sealant layer 52 Base material layer 53 Second sealant layer 54 Printing layer 55 Barrier layer 59 Protective layer N1 Normal direction N2 Normal direction P1 First plane P2 Second plane

Claims

1. In a packaging material for a tube container, comprising a first sealant layer, a base material layer, and a second sealant layer arranged in order from a first surface toward a second surface, a plurality of first ridges convex toward the first surface side and a plurality of second ridges convex toward the second surface side are formed, in a cross section along the normal direction of a first plane including the plurality of first ridges, when the distance between the first plane including the plurality of first ridges and the second ridges is defined as the height, the height on the first surface from the second ridge to the first ridge adjacent to the second ridge is 0.1 mm or more and 0.5 mm or less, in a cross section along the normal direction of a second plane including the plurality of second ridges, when the distance between the second plane including the plurality of second ridges and the first ridges is defined as the height, the height on the second surface from the second ridge to the first ridge adjacent to the second ridge is 0.1 mm or more and 0.5 mm or less, the first ridges include, in a plan view, a plurality of first curves radially extending from a predetermined point so as to be convex toward one side in a predetermined direction, and a plurality of second curves radially extending from the predetermined point so as to be convex toward the other side in the predetermined direction, a packaging material for a tube container.

2. Each of the second ridges is formed on a virtual line extending radially from the predetermined point and passing through the intersection of the first curve and the second curve in a plan view, the packaging material for a tube container according to Claim 1.

3. The first sealant layer includes an extrusion lamination molding layer or an inflation molding layer, the packaging material for a tube container according to Claim 1 or 2.

4. Further comprising a printing layer provided on the base material layer, the packaging material for a tube container according to any one of Claims 1 to 3.

5. The first ridges correspond to the pattern displayed by the printing layer, the packaging material for a tube container according to Claim 4.

6. Further comprising a barrier layer provided between the base material layer and the second sealant layer, the barrier layer being an aluminum foil, the packaging material for a tube container according to any one of Claims 1 to 5.

7. Further comprising a protective layer that constitutes the first surface and protects the first sealant layer, the packaging material for a tube container according to any one of Claims 1 to 6.

8. The packaging material for a tube container according to any one of claims 1 to 7, wherein at least one of the first sealant layer, the base material layer, and the second sealant layer contains a biomass-derived component.

9. The packaging material for a tube container according to any one of claims 1 to 7, wherein the base material layer contains paper.

10. The packaging material for a tube container according to any one of claims 1 to 9, wherein 90% by weight or more is composed of the same material.

11. In a tube container, a body tube having a joint portion formed by overlapping and joining opposite ends of the packaging material for a tube container according to any one of claims 1 to 10; and a head member joined to one end of the body tube.

12. In a capped tube container, the tube container according to claim 11; and a cap attached to the head member.

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