WO2023243647A1 - Matériau à base de papier, couvercle, récipient équipé d'un couvercle, et combinaison de couvercle et de récipient - Google Patents

Matériau à base de papier, couvercle, récipient équipé d'un couvercle, et combinaison de couvercle et de récipient Download PDF

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Publication number
WO2023243647A1
WO2023243647A1 PCT/JP2023/021986 JP2023021986W WO2023243647A1 WO 2023243647 A1 WO2023243647 A1 WO 2023243647A1 JP 2023021986 W JP2023021986 W JP 2023021986W WO 2023243647 A1 WO2023243647 A1 WO 2023243647A1
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WO
WIPO (PCT)
Prior art keywords
lid
paper
container
based material
base material
Prior art date
Application number
PCT/JP2023/021986
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English (en)
Japanese (ja)
Inventor
裕義 林
Original Assignee
株式会社Ky7
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社Ky7 filed Critical 株式会社Ky7
Publication of WO2023243647A1 publication Critical patent/WO2023243647A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/04—Layered products comprising a layer of paper or cardboard next to a particulate layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/42—Applications of coated or impregnated materials
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/66—Coatings characterised by a special visual effect, e.g. patterned, textured
    • D21H19/68—Coatings characterised by a special visual effect, e.g. patterned, textured uneven, broken, discontinuous

Definitions

  • the present invention relates to a paper-based material, a lid, a container with a lid, and a combination of a lid and a container.
  • packaging members such as containers such as cups and lids have been commonly made of plastic from the viewpoint of cost and moldability.
  • plastics the large environmental burden is viewed as a problem.
  • common synthetic plastics such as petroleum-based synthetic resins have the problem of remaining in nature for a long time without being naturally decomposed after disposal.
  • biodegradable plastics have natural degradability when compared with ordinary synthetic plastics, there is a strong demand for improvement in terms of cost.
  • paper-based materials for packaging members as materials (non-plastic materials) that have less environmental impact than plastics.
  • methods for obtaining packaging members using paper-based materials include a method in which a blank material is obtained based on the paper-based material and the packaging member is obtained by processing the blank material.
  • paper-based materials When using paper-based materials as materials for packaging members, further improvement of the paper-based materials is required in terms of water resistance.
  • a packaging member is obtained by processing a blank material, it may be necessary to adhere one part of the blank material to another part or member by a method such as a heat sealing method.
  • a heat sealing method For example, it may be necessary to bond the lid and the container, or if the lid is composed of a plurality of members, it may be necessary to bond the plurality of members.
  • the paper-based material is required to improve water resistance while maintaining moisture adhesion, and to maintain or improve sealability by heat sealing or the like.
  • the packaging member is a lid that is attached to a container, and when the lid is obtained by processing a blank material formed from a sheet of paper-based material (paper sheet)
  • paper sheet paper sheet
  • the content of the container is a liquid such as juice or coffee
  • the liquid often adheres to the surface of the lid (the surface facing the container).
  • droplets such as water adhering to the surface of the resin layer slide on the surface of the resin layer and spill from the open end of the lid, causing droplets to come out from the lid.
  • the problem is that it may fall off.
  • packaging members are required to be improved in terms of suppressing liquid slippage while having water resistance.
  • the present invention provides a paper-based material as a non-plastic material that can suppress the slippage of liquid attached to the surface and has water resistance, a lid body using the paper-based material, and a lid.
  • One of the purposes is to provide a container with a body and a combination of a lid and a container.
  • the gist of the present invention is the inventions according to the following (1) to (11).
  • a paper-based base material having a plurality of fibers, a hydrophobic powder made of a hydrophobic compound, and a binder for bonding the hydrophobic powder and the fibers;
  • a paper-based material having, on at least one surface side, an adhesive portion in which the hydrophobic powder and the fibers are adhered with the binder.
  • the binder is disposed in a gap between at least some of the adjacent fibers located on the bonding part forming surface as the surface on which the bonding part is formed among the fibers on the surface of the base material, and The paper-based material according to (1) above, wherein at least a portion of the binder adheres to the hydrophobic powder.
  • the adhesive part forming surface as the surface on which the adhesive parts are formed is defined as an area where the binder is placed and an area where the binder is not placed in a plan view of the base material.
  • the paper-based material according to (1) or (2) above which is formed to have a mottled pattern.
  • At least a portion of the hydrophobic powder is exposed on the surface of the base material on the surface on which the adhesive portion is formed, and at least a portion of the hydrophobic powder is exposed on the surface of the base material.
  • the paper-based material according to (1) or (2) above which is arranged in a tilted state.
  • a coating film containing a resin is further formed on the adhesive part forming surface of the surface of the base material as the surface on which the adhesive part is formed, so as to cover the adhesive part,
  • a lid body formed from the paper-based material according to (1) or (2) above.
  • (11) A combination of a lid and a container, comprising the lid according to (9) above, and a container having an opening formed at an upper end and an edge forming an outer periphery of the opening.
  • a paper-based material, a lid body, a container with a lid body, and a lid body using a paper-based material which can suppress the slippage of liquid attached to the surface of the paper-based material and have water resistance.
  • a combination of containers is provided.
  • FIG. 1A is a cross-sectional view schematically showing an example of a first example of a paper-based material according to the present invention.
  • FIG. 1B is an enlarged cross-sectional view showing an example of an expanded state of a region XS1 surrounded by a broken line in FIG. 1A, and schematically showing an example of the first example of the paper-based material according to the present invention. It is an enlarged sectional view.
  • FIG. 2A is a plan view showing an embodiment of the first example of the paper-based material according to the present invention.
  • FIG. 2B is an enlarged plan view showing an example of an expanded state of a region XS2 surrounded by a broken line in FIG.
  • FIG. 3A is a cross-sectional view schematically showing an example of the second example of the paper-based material according to the present invention.
  • FIG. 3B is an enlarged cross-sectional view showing an example of an expanded state of a region XS3 surrounded by a broken line in FIG. 3A, and schematically showing an example of the second example of the paper-based material according to the present invention. It is an enlarged sectional view.
  • 4A and 4B are cross-sectional views showing an example of fibers of the paper-based material according to the first example of the present invention.
  • FIG. 5A is a cross-sectional view schematically showing an example of the third example of the paper-based material according to the present invention.
  • FIG. 5B is an enlarged cross-sectional view showing an example of an expanded state of a region XS5 surrounded by a broken line in FIG. 5A, and schematically showing an example of the third example of the paper-based material according to the present invention. It is an enlarged sectional view.
  • FIG. 6A is a cross-sectional view schematically showing an example of the fourth example of the paper-based material according to the present invention.
  • FIG. 6B is an enlarged cross-sectional view showing an example of an expanded state of a region XS6 surrounded by a broken line in FIG.
  • FIG. 6A is schematically showing an example of the fourth example of the paper-based material according to the present invention. It is an enlarged sectional view.
  • FIG. 7 is a cross-sectional view schematically showing an example of the fifth paper-based material according to the present invention.
  • FIG. 8A is a plan view schematically showing an embodiment of a first example lid body using a paper-based material according to the present invention.
  • FIG. 8B is a cross-sectional view schematically showing an example of a vertical cross-section taken along line AA in FIG. 8A.
  • FIG. 8C is an enlarged cross-sectional view showing an example of an expanded state of a region XS7 surrounded by a broken line in FIG. 8B.
  • FIG. 9A is a plan view schematically showing an embodiment of a second example of a lid body using a paper-based material according to the present invention.
  • FIG. 9B is a cross-sectional view schematically showing an example of a vertical cross-section taken along the line BB in FIG. 9A.
  • FIG. 10A is a plan view schematically showing an embodiment of a second example of a lid body using a paper-based material according to the present invention.
  • FIG. 10B is a cross-sectional view schematically showing an example of the vertical cross-section taken along line CC in FIG. 10A.
  • FIG. 11A is a plan view schematically showing an embodiment of a third example of a lid using a paper-based material according to the present invention.
  • FIG. 11B is a cross-sectional view schematically showing an example of a vertical cross-section taken along the line DD in FIG. 11A.
  • FIG. 11C is a cross-sectional view schematically showing an example of the state of the lid when the small lid is opened.
  • FIG. 12A is a plan view schematically showing an example of a third example of a lid using a paper-based material according to the present invention.
  • FIG. 12B is a cross-sectional view schematically showing an example of a vertical cross-section taken along the line EE in FIG. 12A.
  • FIG. 13A is a plan view schematically showing an embodiment of a third example of a lid using a paper-based material according to the present invention.
  • FIG. 13B is a cross-sectional view schematically showing an example of the longitudinal cross-section taken along the line FF in FIG. 13A.
  • FIG. 14A is a plan view schematically showing an embodiment of a fourth example of a lid using a paper-based material according to the present invention.
  • FIG. 14B is a cross-sectional view schematically showing an example of the longitudinal cross-section taken along the line GG in FIG. 14A.
  • 14C and 14D are cross-sectional views schematically showing another example of the fourth example of the lid using the paper-based material according to the present invention.
  • FIG. 15 is a plan view schematically showing an example of a fifth example of a lid body using a paper-based material according to the present invention.
  • FIG. 16A and 16B are plan views schematically showing an embodiment of a sixth example of a lid body using a paper-based material according to the present invention.
  • FIG. 17A is a plan view showing an example of a container with a lid.
  • FIG. 17B is a cross-sectional view schematically showing the state of the longitudinal cross-section taken along line HH in FIG. 17A.
  • FIG. 18A is a perspective view schematically showing an example of a seventh example of a lid body using a paper-based material according to the present invention.
  • FIG. 18B is a cross-sectional view schematically showing an example of the state of the vertical cross-section taken along line II in FIG. 18A.
  • FIG. 19A is a perspective view schematically showing an example of an eighth example of a lid body using a paper-based material according to the present invention.
  • FIG. 18B is a cross-sectional view schematically showing an example of the vertical cross-section taken along line JJ in FIG. 18A.
  • FIG. 20A is a perspective view schematically showing an example of a ninth example of a lid body using a paper-based material according to the present invention.
  • FIG. 20B is a cross-sectional view schematically showing an example of the state of the vertical cross-section taken along line KK in FIG. 20A.
  • FIG. 21A is a perspective view schematically showing an example of a seventh example of a lid using a paper-based material according to the present invention.
  • FIG. 21B is a cross-sectional view schematically showing an example of the longitudinal cross-section taken along the line LL in FIG. 21A.
  • 22A and 22B are plan views for explaining a blank material for manufacturing a lid using a paper-based material according to the present invention.
  • FIG. 23A is a perspective view schematically showing an example of a seventh example of a lid body using a paper-based material according to the present invention.
  • FIG. 23B is a cross-sectional view schematically showing an example of the longitudinal cross-section taken along line MM in FIG. 23A.
  • FIG. 24 is a sectional view showing an example of a container with a lid.
  • the paper-based material according to the present invention will be explained in detail.
  • the explanation will be continued taking as an example the case where the paper-based material is a sheet.
  • a lid using a paper-based material according to the present invention will be explained in detail based on the drawings.
  • the lid will be explained using as an example a lid used for a container (cup) for holding various beverages, such as a coffee cup, but it is limited to a lid for a container for storing beverages. Instead, it can also be applied as a lid for a container that stores foodstuffs other than drinks, such as delicatessen dishes.
  • the lid according to the present invention is not prohibited from being applied to containers that can contain various items other than food and drink.
  • the lid according to the present invention will be described below using an example of a lid having a circular shape when viewed from above, the shape of the lid is limited to one having a circular shape when viewed from above.
  • the present invention can also be applied to various shapes other than circular shapes, such as polygonal shapes such as elliptical shapes, rectangular shapes, and triangular shapes, chamfered rectangular shapes, and chamfered polygonal shapes.
  • the Z-axis direction is the up-down direction (the upper side is the +Z direction, the lower side is the -Z direction), and the X-axis direction is the front-rear direction (the back side is the +X direction, the front side is the -X direction).
  • FIGS. 1A and 1B The paper-based material according to the present invention may be configured as shown in FIGS. 1A and 1B.
  • the example of the paper-based material shown in the examples of FIGS. 1A and 1B is referred to as a first example.
  • FIG. 1A is a sectional view showing an example of a first example of a paper-based material.
  • FIG. 1B is an enlarged cross-sectional view schematically showing an example of an enlarged state of a region XS1 in FIG. 1A.
  • the paper-based material 10 of the first example includes a base material 11 having fibers, a hydrophobic powder 13, and a binder 14, as shown in FIGS. 1A and 1B.
  • a fiber sheet 12 made of a paper-based material is preferably used as the base material 11.
  • the fibers 12A forming the fiber sheet 12 are preferably used.
  • FIGS. 1A and 1B an example is shown in which a fiber sheet 12 is used as the base material 11 (a case in which fibers 12A are used as the fibers included in the base material 11).
  • the fiber sheet 12 containing a paper-based material is obtained in the form of a sheet by applying a slurry of fiber raw material (pulp-based fiber raw material) onto a mesh and drying or press-drying the slurry (paper-making process).
  • Spread fiber raw materials such as pulverized pulp obtained by pulverizing raw material sheets made of so-called paper or pulp-based fibers with a pulverizer are piled up using an air flow, and the fibers of the piled body are fixed with resin or the like. Examples include so-called air-laid sheets obtained by the above-mentioned methods, and so-called papers produced by gluing vegetable fibers and other fibers together.
  • the fiber sheet 12 containing a paper-based material includes one having a laminated structure in which a plurality of sheets of paper as described above are laminated.
  • the fiber sheet 12 may include sheet materials having fibers other than pulp, such as chemical fibers, fibers with functions such as water resistance, metal fibers, and glass fibers.
  • the fiber sheet has paper fiber as a main component.
  • the term "main component" indicates that the ratio of the mass of the target component to the total mass is 50% by mass or more.
  • the fiber sheet 12 may be composed of only the fibers 12A (an aggregate structure of the fibers 12A (entangled structure of fibers, etc.)), or may have a structure in which a plurality of fibers 12A are crosslinked with a crosslinking agent or the like. It may also contain additives other than the binder and hydrophobic powder that adhere to the resin 12A.
  • the plurality of fibers 12A are mutually crosslinked with a crosslinking agent, so that the shape of the fiber sheet 12 is stabilized, and a state in which the fibers 12A are stably arranged in the fiber sheet 12 is easily formed. .
  • the fibers 12A constituting the fiber sheet 12 may be composed of one unit fiber or may have a structure in which a plurality of unit fibers are intertwined. May be included. It is preferable that the fiber sheet 12 is formed by further intertwining a plurality of fibers having such a structure.
  • the material of the fibers 12A of the fiber sheet 12, which is the material of the fibers of the base material 11, may include not only pulp but also fibers such as non-pulp natural fibers, synthetic fibers, and recycled fibers. However, it is preferable that the pulp contains 50% by mass or more, more preferably 70% by mass or more, further preferably 80% by mass or more, and particularly preferably one containing 100% by mass of pulp.
  • the fiber 12A composite materials such as synthetic resin or natural resin films, nonwoven fabrics, wood materials such as wood foil, or even composite materials with materials such as aluminum foil can be used. It is preferable to contain pulp in an amount of 50% by mass or more, particularly preferably 80% by mass or more. The higher the pulp content, the more easily the paper-based material 10 is biodegradable, which is preferable.
  • hydrophobic powder 13 is bonded to at least some of the fibers 12A exposed on the surface 11A of the base material 11 with a binder 14.
  • a structural portion in which the fibers 12A and the hydrophobic powder 13 are bonded together with the binder 14 is referred to as a bonded portion 17.
  • the surface of the surface of the base material 11 on which the adhesive portion 17 is formed may be referred to as the adhesive portion forming surface 20.
  • the adhesive portion forming surface 20 In the example of FIG. 1, a case is shown in which one surface 11A of the surfaces of the base material 11 is the adhesive portion forming surface 20.
  • the adhesion portion forming surface 20 may be a surface (the other surface) of the base material 11 that is opposite to (opposite to) one surface 11A.
  • each of both surfaces of the base material 11 may be used as the adhesive portion forming surface 20, as will be described later in the second example.
  • a plurality of bonding portion forming surfaces are formed.
  • the adhesive part 17 is not limited to the case where it is formed on the surface 11A, but may be formed inside the base material 11, as will be described later in the second example.
  • the adhesive portions 17 may be formed at a plurality of locations on at least some of the fibers 12A constituting the fiber sheet 12 forming the base material 11.
  • One adhesive part 17 may be formed on the fiber 12A with a large number of hydrophobic powders 13 in contact with a regionally continuous binder 14, or with at least a part of a regionally separated binder 14.
  • a plurality of adhesive portions 17 may be formed with the hydrophobic powder 13 in contact with the adhesive portions 17 .
  • FIG. 1B for convenience of explanation, some of the fibers 12A forming the fiber sheet 12 are schematically described, and description of other fibers is omitted. This is common to FIGS. 2B, 3B, 4B, 5B, and 6B.
  • the longitudinal cross section of the fiber sheet 12 (the cross section with the thickness direction of the fiber sheet 12 as the cutting direction) or the fiber sheet shown in FIG. 1A, FIG. 2A, FIG. 3A, FIG. In the drawings depicting the plane of the sheet 12, the description of the fibers 12A is omitted.
  • the hydrophobic powder 13 is made of a hydrophobic compound, and examples thereof include inorganic powder, organic powder, resin powder, etc., but those with less environmental impact are preferable.
  • a preferred example of the hydrophobic powder is a biodegradable resin powder that can have hydrophobicity.
  • biodegradable resin powder include starch compounds.
  • starch compounds include starch salts of octenyl succinate such as starch aluminum octenyl succinate and starch sodium octenyl succinate.
  • powders such as highly water-resistant biodegradable plastics obtained from starch and cellulose can also be used.
  • the hydrophobic compound refers to a compound that has hydrophobicity under conditions of normal temperature and normal pressure (25° C., 1 atm).
  • the size of the granules of the hydrophobic powder 13 is not particularly limited, but it is preferably smaller than the average width ( ⁇ m) of one fiber.
  • the size of the granules and the width of the fibers can be determined based on, for example, an enlarged photograph using a microscope.
  • the gelatinization temperature (°C) of the hydrophobic powder 13 is preferably higher than the melting point (°C) of the binder 14. Since the gelatinization temperature of the starch compound that becomes the hydrophobic powder is higher than the melting point of the binder, the hydrophobic powder can be adhered to the fibers while the binder is heated and melted. At this time, the starch compound used as the hydrophobic powder is suppressed from becoming gelatinized due to the action of the starch compound and water, which may be added together with the binder 14, and the starch compound is gelatinized. Therefore, it is possible to suppress the possibility that a structural change that reduces hydrophobicity occurs in the three-dimensional structure of the starch-based compound's molecule, resulting in the formation of a state with reduced hydrophobicity. can.
  • hydrophobic powder 13 is dispersed on the surface 11A of the base material 11, which becomes the bonding part formation surface 20, when the base material 11 is viewed from above.
  • the hydrophobic powder 13 may be uniformly dispersed on the adhesive portion forming surface 20 when viewed from above of the base material 11, it is preferable that the hydrophobic powder 13 is non-uniformly dispersed.
  • the hydrophobic powder 13 is dispersed non-uniformly, it is preferable that a portion of the fiber 12A is coated with the hydrophobic powder 13.
  • the adhesive portion forming surface 20 has an area that is at least partially covered with powder and an area that is not covered. As a result, there are areas where the hydrophobic powder has no density, and there is a difference in the density of the hydrophobic powder. Although the hydrophobic powder has water resistance due to the presence of the hydrophobic powder, it becomes difficult for water droplets to slip in areas where the hydrophobic powder has a low density. While having the water resistance as a paper-based material, it is easy to suppress the slippage of the liquid adhering to the surface 11A of the paper-based material on the side where the adhesive portion is formed.
  • a binder when a binder is disposed in a gap between at least some of the adjacent fibers located on the bonded part forming surface as the surface on which the bonded part is formed among the fibers on the surface of the base material, at least one of the binder It is preferable that hydrophobic powder is adhered to a portion.
  • the exposed area of the fibers can be secured to some extent while maintaining the water repellency of the base material 11, and the effect of suppressing the slippage of the liquid adhering to the surface 11A can be improved.
  • the hydrophobic powder 13 may be attached to the fiber 12A in granular units, as shown in FIGS. 4A, 4B, etc. (a group of fine solid particles (i.e., powder) can freely attach to the fiber 12A).
  • the particles may be attached to the fibers 12A in the form of a mass of a plurality of closely arranged particles (a state in which a group of fine solid particles are in close contact with each other and adhered to the fiber).
  • the respective granules constituting the agglomerate of hydrophobic powder 13 may be adhered to each other via the binder 14, or may be bonded to each other with the granules directly in contact and surrounded by the binder 14. A state may be formed in which the particles are brought into close contact with each other.
  • At least a portion of the hydrophobic powder is disposed on the adhesive portion forming surface with at least a portion of the hydrophobic powder exposed on the surface of the base material.
  • at least an agglomerate of hydrophobic powder is adhered to the fibers via a binder, and a portion of the hydrophobic powder (a part of the agglomerate) is outward from the surface of the film formed with the binder. part) is exposed.
  • the hydrophobic powder is generally arranged on the surface of the base material.
  • the hydrophobicity imparting part includes a binder and hydrophobic powder disposed on the surface of the base material.
  • the hydrophobicity imparting portion can constitute a portion of the paper-based material that can exhibit water resistance. In the examples shown in FIGS. 1A and 1B, when the hydrophobic powder is arranged substantially on the surface of the base material, the surface of the base material generally corresponds to the hydrophobicity imparting portion.
  • the hydrophobicity imparting part is formed from the surface of the base material to the inside of the base material.
  • the surface of the base material is generally the part of the base material that can exhibit water resistance.
  • the paper-based material 10 has a structure in which a binder 14 is adhered to a base material 11. This is achieved by bonding the binder 14 to the fibers forming the base material 11.
  • the binder 14 is bonded to the fibers 12A of the fiber sheet 12.
  • the binder 14 is also bonded to the hydrophobic powder 13, forming a structure in which the hydrophobic powder 13 and the fibers 12A are bonded by the binder 14.
  • the binder 14 and the fiber 12A may be bonded to a part of the fiber 12A, as shown in FIG. 4A, or may cover the circumferential surface of the fiber 12A, as shown in FIG. 4B.
  • the fibers 12A whose peripheral surfaces are coated with the binder 14 are part of the fibers 12A constituting the fiber sheet 12. Therefore, even if there are fibers 12A whose peripheral surfaces are coated with binder 14, it is preferable that binder-free portions 16 exist as shown below.
  • the adhesive part forming surface 20 as the surface on which the adhesive part 17 is formed on the surface of the base material is the area where the binder 14 is arranged (the area where the existing part 15 is formed) in the plan view of the base material 11. ) and the area where the binder 14 is not placed (the area where the non-existing portion 16 is formed) are formed in a mottled pattern.
  • the non-existing portion 16 exposes the fibers 12A on the surface 11A of the base material 11, and it is possible to effectively suppress the sliding of the liquid attached to the surface of the paper-based material 10.
  • the existing portion 15 is not limited to the case where the circumferential surface of the fiber 12A is coated with the binder 14 in the circumferential direction of the fiber 12A, but includes the case where the binder 14 partially covers the fiber 12A.
  • the hydrophobicity imparting part 19 of the adhesive part forming surface 20 is shown with hatching
  • FIG. 2B the existing part 15 is shown with hatching, and the existing part The description of the fibers 12A covered by the fibers 15 is omitted, and a portion of the fibers 12A located in the non-existing portion 16 is shown.
  • the thickness of the film (layer) formed with the binder 14 is not particularly limited, but it is possible to efficiently form a state in which at least a portion of the hydrophobic powder is exposed on the surface of the film formed with the binder 14. From the viewpoint of this, it is preferable that the particle size is smaller than the average particle size (diameter) of the particles.
  • the material of the binder 14 is not particularly limited as long as it can adhere to the fibers 12A and the hydrophobic powder 13, and examples thereof include resin materials.
  • resin material that becomes the binder 14 acrylic resin or the like can be exemplified. From the viewpoint of easy dissolution or dispersion in the medium liquid, it is preferable that the material has high solubility and dispersibility in these medium liquids.
  • the medium liquid indicates a liquid in which the binder 14 is dissolved or dispersed, and examples of the medium liquid include water, methanol, ethanol, etc., or a combination thereof.
  • the viscosity of the liquid containing the binder 14 can be easily lowered, and the liquid containing the binder 14 can be applied to the surface of the base material 11. In this case, it becomes easy not only to bring the binder 14 into contact with the surface of the base material 11 but also to make the binder 14 permeate into the inside of the base material 11 .
  • the paper-based material 10 is not prohibited from containing a hydrophobic low-melting organic compound (not shown).
  • the hydrophobic low melting point organic compound refers to a hydrophobic organic compound having a melting point lower than that of the binder 14.
  • the hydrophobic low melting point organic compound is a non-synthetic resin compound.
  • a non-synthetic resin-based hydrophobic low-melting organic compound is defined as a hydrophobic low-melting organic compound excluding petroleum-based synthetic resins. Petroleum-based synthetic resin refers to resin that uses petroleum as a carbon source.
  • the non-synthetic resin-based hydrophobic low-melting organic compound may be a resin whose carbon source is non-petroleum, such as a plant, or a plant-based biodegradable resin.
  • the non-synthetic resin-based hydrophobic low melting point organic compound is preferably a hydrophobic organic compound having a molecular weight of about 10,000 or less, and among these, a biodegradable organic compound is preferable.
  • Examples of the hydrophobic low-melting organic compound having a molecular weight of about 10,000 or less include waxes.
  • Waxes include paraffin wax with a molecular weight of approximately 300 to 550, microcrystalline wax, slack wax, montan wax, ceresin, ozokerite, beeswax, wood wax, privet wax, shellac wax, carnauba wax, candelilla wax, rice wax, and rose wax.
  • Wax sunflower seed wax, polyethylene wax, polypropylene wax, functional wax, Fischer-Tropsch wax, (isostearic acid/beeswax/succinic acid) castor oil, sumac peel wax, barley malt hull wax, octyldodecyl beeswax, orange peel wax, Hydrolyzed beeswax, candelilla wax hydrocarbon, daffodil flower wax, synthetic beeswax, synthetic Japanese wax, dimethiconol beeswax, dimethicone copolyol beeswax, sweet acacia flower wax, hydrogenated rice bran wax, hydrogenated microcrystalline wax, hydrogenated Japanese wax, stearyl Beeswax, shellac wax, centifolia rose flower wax, Japanese sockeye flower wax, daidai flower wax, damask rose flower wax, tuberose flower wax, stinkweed wax, propolis wax, behenyl beeswax
  • waxes include PEG-6 beeswax, PEG-12 beeswax, Sorbeth-2 beeswax, Sorbeth-6 beeswax, Sorbeth-8 beeswax, Sorbeth-20 beeswax, and BisPEG-12 dimethicone beeswax.
  • waxes (A) Those containing compounds having hydrophilic groups (referred to as waxes (A)) may also be used. However, from the viewpoint of exhibiting water repellency appropriately, it is preferable that the wax (A) is used in combination with a wax outside the range of these waxes (A).
  • Lid bodies made of paper-based materials have been desired to be improved from the viewpoint of water resistance.
  • a packaging member such as a lid
  • a resin coating layer is usually formed on the surface of the container to make it waterproof. Even if the types of resins constituting the resin coat layer formed on the surface of the container become more diverse, there is a demand for a method that allows the container and the lid to be bonded together by a heat sealing method.
  • paper-based materials in which plastic is used as a material and a resin layer is formed on the surface of the base material have the problem of environmental burden because plastic is used.
  • the hydrophobic powder 13 is attached to the surface 11A of the base material 11. Therefore, the water resistance of the surface of the paper-based material 10 can be improved. Further, when the non-existing portion 16 is formed in the paper-based material 10 according to the present invention, the surface 11A of the paper-based base material 11 can be exposed. Therefore, according to the paper-based material 10, it is possible to suppress the sliding of the liquid attached to the surface.
  • the surface 11A of the base material 11 is not bondable to the container 501 by the heat sealing method even if the types of resins constituting the resin coat layer formed on the surface of the container 501 become diverse. Since the material is excellent, the lid 100 using the paper-based material 10 according to the present invention can be joined to the container 501.
  • the paper-based material 10 uses a paper-based material as the base material 11, and non-plastic can be used as the hydrophobic powder, so the paper-based material 10 as a whole is derived from petroleum raw materials. can be suppressed as much as possible. Therefore, the paper-based material 10 according to the present invention is also effective in reducing environmental load.
  • FIG. 3A is a cross-sectional view schematically showing an example of a paper-based material 10, which is an example of a second example of the paper-based material.
  • FIG. 3A is a cross-sectional view schematically showing an example of a paper-based material 10, which is an example of a second example of the paper-based material.
  • 3B is an enlarged sectional view schematically showing an example of an enlarged state of the region XS3 in FIG. 3A.
  • the base material and hydrophobic powder are the same as in the first example.
  • the description of the second example of the paper-based material 10 the description of the same points as the first example of the paper-based material 10 will be omitted.
  • the binder 14 treats both the hydrophobic powder 13 disposed on the surface of the base material and the hydrophobic powder 13 that has entered the inside of the base material. Preferably, it is in a state where it is adhered to the fibers 12A.
  • the adhesive portion 17 is also formed inside the base material 11.
  • the fibers inside the base material 11 it is preferable that at least a portion of the hydrophobic powder 13 is exposed to the outside from the surface of the film of the binder 14 adhered to the binder 12A.
  • the hydrophobic powder 13 penetrates into the interior of the base material 11 over the entire area of the base material 11 when viewed from above. In this case, the water resistance can be improved in approximately the entire area of the base material 11.
  • the hydrophobicity imparting portion 19 is located at the depth of the hydrophobic powder 13 that is disposed innermost from the surface 11A side of the base material 11 toward the inside of the base material 11 along the thickness direction of the base material 11. It is made up of two parts. Further, it is preferable that even the hydrophobic powder 13 disposed innermost toward the inside of the base material 11 is bonded to the fibers 12A with the binder 14. In this case, detachment of the hydrophobic powder 13 from the inside of the base material 11 to the outside is suppressed.
  • the hydrophobicity imparting portion 19 is illustrated as a portion surrounded by a broken line.
  • the binder 14 exists further inside the base material 11 than the hydrophobic powder 13 (to the inside).
  • the paper-based material 10 forms the hydrophobicity-imparting portion 19 to the depth of a predetermined position inside the base material 11, it is possible to exhibit stronger water resistance.
  • FIG. 5A is a cross-sectional view schematically showing an example of a paper-based material 10, which is an example of a third example of the paper-based material.
  • FIG. 5B is an enlarged sectional view schematically showing an example of an enlarged state of the area XS5 in FIG. 5A.
  • the hydrophobic powder 13 can also be fixed to the binder 14 that connects the fibers 12A of the paper-based material 10, making it possible to exhibit stronger water resistance.
  • FIG. 6A is a cross-sectional view schematically showing an example of the paper-based material 10 of the fourth example.
  • FIG. 6A is a cross-sectional view schematically showing an example of the paper-based material 10 of the fourth example.
  • FIG. 6B is an enlarged sectional view schematically showing an example of an enlarged state of the area XS6 in FIG. 6A.
  • the base material 11 and the hydrophobic powder 13 are the same as those in the first example.
  • the description of the same points as the first to third examples will be omitted.
  • the paper-based material 10 of the fourth example has the hydrophobicity imparting portion 19 formed on both the one side 11A1 side and the other side 11A2 side of the base material 11 as shown in the first example. has been done.
  • the paper-based material 10 of the third example has a hydrophobicity imparting portion 19 formed on one side 11A1 of the base material 11 and a hydrophobicity imparting portion 19 formed on the other side 11A2 of the base material 11.
  • the present invention is not limited to the case where the application section 19 has a similar structure.
  • the paper-based material 10 of the fourth example has a structure in which the hydrophobicity imparting portion 19 formed on one side 11A1 of the base material 11 and the hydrophobicity imparting portion 19 formed on the other side 11A2 of the base material 11 are different. You may.
  • the non-existing portion 16 may be formed on the one surface 11A1 side of the base material 11, and the formation of the non-existing portion 16 on the other surface 11A2 side of the base material 11 may be avoided.
  • the hydrophobicity imparting portion 19 as described in the second example is formed on the one side 11A1 side of the base material 11, and on the other side 11A2 side of the base material 11.
  • the hydrophobicity imparting portion 19 as described in the third example may be formed.
  • the hydrophobicity imparting portions 19 are formed on both surfaces (one side 11A1 and the other side 11A2) of the base material 11, and the hydrophobicity imparting portions 19 are formed on either surface. 19 has a thickness from the surface to a predetermined depth inside the base material 11, as shown in FIG. The thickness of the application portion 19 may be different.
  • the example of the paper-based material 10 according to the present invention configured in this manner will be referred to as a fifth example.
  • FIG. 7 is a cross-sectional view schematically showing an example of the paper-based material 10 of the fifth example.
  • the fifth example is the same as the fourth example, including the materials of the base material 11, hydrophobic powder 13, binder 14, and the like.
  • the description of the same points as the first to fourth examples will be omitted.
  • a hydrophobicity imparting portion 19 formed on one side 11A1 of the base material 11 and a hydrophobicity imparting portion 19 formed on the other side 11A2 of the base material 11 have a similar structure. or may have a different structure.
  • the non-existing portion 16 may be formed on the one surface 11A1 side of the base material 11, and the formation of the non-existing portion 16 on the other surface 11A2 side of the base material 11 may be avoided.
  • the hydrophobicity imparting portion 19 formed on the one surface 11A1 side of the base material 11 and the hydrophobicity imparting portion 19 formed on the other surface 11A2 side of the base material 11 may be made of the same material, or may be made of different materials. It may be composed of.
  • the adhesive part forming surface 20, which is the surface on which the adhesive part 17 is formed, of the surface 11A of the base material 11 further contains a resin so as to cover the adhesive part 17.
  • a coating film may be formed (not shown). However, in this case, it is preferable that the coating film be formed such that the hydrophobic powder 13 is exposed from at least a portion of the surface of the coating film. By forming the coating layer, the state in which the hydrophobic powder 13 is more strongly adhered to the base material 11 can be maintained.
  • the resin forming the coating film may be made of the same material as the binder 14 or may be made of a different material from the binder 14.
  • the method of manufacturing the paper-based material 10 according to the present invention is not particularly limited.
  • a binder is dissolved or dispersed in a liquid medium, a hydrophobic powder is further added, and a coating liquid is used, and various types of Examples of methods include applying a coating liquid to a substrate by a known coating method such as a coating method such as roll coating or spray coating, or a printing method such as gravure printing or screen printing, and then drying it.
  • a lid 100 using the paper-based material 10 according to the present invention will be described.
  • the lid 100 according to the present invention may be configured as shown in FIGS. 8A, 8B, and 8C.
  • the examples of the lid body 100 shown in the examples of FIGS. 8A, 8B, and 8C are referred to as a first example.
  • FIG. 8A is a plan view showing an example of the lid body 100 of the first example.
  • FIG. 8B is a diagram schematically showing the state of a longitudinal section taken along the line AA in FIG. 8A.
  • FIG. 8C is an enlarged sectional view schematically showing an example of an enlarged state of the area XS7 in FIG. 8B.
  • the lid 100 of the first example has a structure obtained by processing a blank material 130 formed from the paper-based material 10 according to the present invention described above.
  • the lid 100 of the first example has an opening 502 formed at the upper end and an edge 503 serving as the upper edge forming the outer periphery of the opening 502, as described later using FIGS. 17A, 17B, etc. It is formed so that it can be joined to a container 501 that has a container 501.
  • 17A and 17B are a perspective view and a sectional view showing an example of a container 500 with a lid, in which the lid 100 shown in FIG. 8 is joined to a container 501.
  • the lid 100 can be used by being joined along the edge 503.
  • the region joined to the edge 503 in a plan view of the lid 100 is referred to as a joining region R.
  • FIG. 8A is a plan view showing one embodiment of the lid body 100.
  • FIG. 8B is a cross-sectional view schematically showing a longitudinal section taken along the line AA in FIG. 8A.
  • a container having flexibility at the edge 503 of the opening 502 is more preferably used. However, these things do not prohibit the container 501 from being a container with little or almost no flexibility, such as a metal container.
  • the joining region R corresponds to a region formed roughly in an annular shape along the opening 502 with a shape corresponding to the opening 502 of the container 501.
  • the lid body 100 is formed from a blank material 130 as shown in FIGS. 8A, 8B, and 8C.
  • the blank material 130 is obtained by processing the paper-based material 10 according to the present invention into a shape corresponding to the shape of the lid body 100.
  • the lid body 100 is not limited to the case where the lid body 100 is formed of the blank material 130 only, and the lid body 100 is formed by forming members such as the tab member 122 on the blank material 130.
  • the lid body 100 has an attached structure, and also includes the case where the lid body 100 is subjected to various processing treatments such as shaping treatment (embossing treatment, etc.) on the blank material 130.
  • the blank material 130 to which the paper-based material 10 is applied and the lid body 100 have a layered structure in which the hydrophobicity imparting portion 19 has a predetermined thickness on one surface 11A side of the fiber sheet 12 serving as the base material 11.
  • the paper-based material 10 that can be used to form the blank material 130 is similar to the various paper-based materials 10 described above using FIGS. 1 to 7 as examples.
  • the hydrophobicity imparting portions 19 may be formed on both surfaces 11A, or the hydrophobicity imparting portions 19 may be formed up to the inside of the base material 11.
  • the lid body 100 has a joining area corresponding part 105A and a lid area corresponding part 105B.
  • the bonding area corresponding portion 105A is a portion of the lid 100 that corresponds to a region that is bonded to the container 501 along the edge 503 of the container 501. That is, the joint region corresponding portion 105A is a portion of the lid 100 corresponding to the joint region R (the region facing the edge 503 of the container 501 and the region joined to the container 501). In the container with a lid 500, the joint area corresponding portion 105A is a portion of the lid 100 that forms the joint 651 between the lid 100 and the container 501. Specifically, in a plan view of the lid 100 (in the example of FIG.
  • a portion forming the bonding region R is defined as the bonding region corresponding portion 105A.
  • the joint region corresponding portion 105A is normally formed in an annular shape as shown in FIG. 8A.
  • the joining region R is annular, and the joining region corresponding portion 105A is also formed in a plan view of the lid 100. , is roughly circular.
  • the outer edge of the bonding area corresponding portion 105A is determined according to the position of the outer edge of the bonding area R.
  • the outer edge of the joint region corresponding portion 105A may be located at the outer circumferential edge of the lid 100, or may be located inside the outer circumferential edge of the lid 100 as shown in the example of FIG. 8A. If the bonding region R between the lid 100 and the container 501 is not formed continuously, the portion sandwiched between the adjacent bonding regions R and the portion facing the edge 503 is also included in the bonding region corresponding portion 105A described later. shall be included.
  • hydrophobic powder 13 is applied to the surface of the fiber sheet 12, which is the base material 11 of the paper-based material 10 forming the lid 100, in a portion corresponding to the joint region corresponding portion 105A.
  • a structure is formed in which the binder 14 is attached to the fibers 12A, and a hydrophobicity imparting portion 19 is formed.
  • the hydrophobicity imparting portion 19 is formed on the surface of the fiber sheet 12, that is, the surface of the lid 100, at least on the surface 173 facing the container 501 (the opposite side to the exposed surface 172). It is preferable that it is formed.
  • the lid region corresponding portion 105B is a portion of the lid 100 that is inside from the joining region corresponding portion 105A. That is, the lid region corresponding portion 105B is a portion inside from the inner edge of the joining region corresponding portion 105A, and the outer peripheral end of the lid region corresponding portion 105B is common to the inner edge of the joining region corresponding portion 105A.
  • the lid region corresponding portion 105B is a portion that covers the opening 502 in the lidded container 500. Note that the portion that covers the opening 502 is a portion that covers at least a portion of the opening 502, and includes a case where the small opening 106 is provided as will be described in the third example.
  • the portion outside from the outer peripheral end of the lid region corresponding portion 105B of the lid body 100 is referred to as the outer region corresponding portion 105C (in the third example described later, the outer region corresponding portion 105C is This corresponds to a portion of the base portion 102 that is outward from the inner edge of the bonding region corresponding portion 105A).
  • the lid body 100 since the lid body 100 is formed using the paper-based material 10 of the present invention, the hydrophobic powder formed of the hydrophobic powder 13 and the binder 14 The water resistance of the lid body 100 can be improved by the water resistance imparting portion 19.
  • the lid may be attached to the container 501. Even if the lid is tilted when opening, the liquid droplets adhering to the opposing surface will be less likely to slip in the non-existing portion 16, making it easier to suppress the sliding of the liquid adhering to the surface.
  • FIGS. 9A and 9B are a plan view and a cross-sectional view schematically showing an example of the lid body 100 of the second example. Further, FIG. 9B is a diagram schematically showing the state of a longitudinal section taken along the line BB in FIG. 9A.
  • the base material 11, hydrophobic powder 13, binder 14, and hydrophobicity imparting portion 19 are the same as in the first example. Note that in the description of the second example, the description of the same points as the first example will be omitted.
  • the insertion port 119 is a structure that allows various members to be inserted into the container 501 from the outside when the lid 100 is used in the container 500 with a lid, and examples of insertable members include straws and the like. Ru.
  • the insertion port 119 is formed at least in the lid region corresponding portion 105B, and in the example shown in FIGS. 9A and 9B, it is formed in the penetrating portion 110.
  • the penetrating portion 110 has a structure (a penetrating structure) cut in the vertical direction (thickness direction, Z-axis direction) from one surface (exposed surface 172) to the other surface (opposed surface 173) of the blank material 130. This is a so-called notch portion 108.
  • this penetrating portion 110 can function as a gas venting portion.
  • the gas venting portion refers to a portion that allows gas to pass from one side of the lid body 100 to the other side (from the opposing surface 173 side to the exposed surface 172 side).
  • the shape of the insertion port 119 is not particularly limited as long as it can be formed by cutting.
  • a notch 108 in the shape of a cross in the vertical direction of the blank material 130 is formed in the lid 100, and this notch 108 forms a through part 110, and this through part 110 constitutes an insertion port 119.
  • the shape of the notch 108 forming the penetrating portion 110 is not limited to a cross shape, but may be a C-shape as long as it can be used as the insertion port 119. , and various shapes such as a tongue shape may be used.
  • the cross section of the base material 11 is exposed at the cut surface of the cut forming the penetration part 110, and at least a portion of the portion corresponding to the surface 11A of the base material 11 is exposed. It is preferable that the hydrophobicity imparting portion 19 is exposed. In this case, it is possible to somewhat suppress the liquid contained in the container 501 from penetrating into the base material 11 from the penetrating portion 110.
  • FIG. 10A is a plan view schematically showing an embodiment of the lid body 100 according to a modification of the second example.
  • FIG. 10B is a diagram schematically showing an example of a longitudinal section taken along the line CC in FIG. 10A.
  • the weakened portion 114 includes a plurality of through portions 110 and at least one continuous portion 115 formed between the ends of at least two through portions 110, as shown in the example of FIG. 10A.
  • the weakened portion 114 guides the position where division occurs (divided position) when a lifting or pressing force is applied to the weakened portion 114 to form a divided portion in the lid body. That is, the position where the division occurs is formed generally along the weakened portion.
  • the continuous portion 115 is destroyed, and the continuous portion 115 is moved along the through portion 110. Parting occurs, and a state in which the insertion port 119 is open is formed (the insertion port 119 is in an open state).
  • the layout of the weakened section 114 is not particularly limited, and may be determined according to conditions such as the function of the weakened section 114.
  • the continuous portion 115 is formed at one location, and a total of four penetration portions 110 are formed.
  • the penetrating portion 110 is formed to extend radially from the continuous portion 115 in four different directions. Note that this is an example of the weakened portion 114, and in the case where the weakened portion 114 has a plurality of penetration portions 110 radially formed around the continuous portion 115, the penetration portion 110 extends from the continuous portion 115. It may extend in three directions in the direction of separation, or may extend in five or more directions. Furthermore, the penetrating portion 110 may extend in two directions away from the continuous portion 115.
  • the weakened portion 114 is formed in a cross shape in the example of FIG. 10A, it may be formed in a C shape. Further, the continuous portion 115 is not limited to being formed at one location as shown in the example of FIG. 10A, but may be formed at multiple locations.
  • the position of the weakened portion 114 is not particularly limited, it is preferably provided in the lid region corresponding portion 105B. In this case, a dividing position is formed in the lid region corresponding portion 105B.
  • the continuous portion 115 may be a portion formed not to penetrate the blank material 130 forming the lid 100, and may be an uncut portion, or as shown in FIG. ) may be a half-cut portion 116 that is obtained by cutting the blank material 130 in the thickness direction within a range that avoids penetrating the portion.
  • FIG. 10B is a diagram for explaining an example in which the continuous portion 115 is a half-cut portion 116.
  • the half-cut portion 116 is specified as a portion forming a half-cut structure, which is a structure in which the lid 100 is cut halfway in the thickness direction of the lid 100. Note that the half-cut portion 116 is not limited to a portion cut in the thickness direction of the lid 100 to half the thickness of the lid 100.
  • the half-cut portion 116 may have a structure in which a cut is made in more than half the thickness of the lid 100 while avoiding penetration through the lid 100, or a cut in the thickness direction of the lid 100 to an extent less than half the thickness of the lid 100. Contains an incised structure.
  • the continuous part 115 is the half-cut part 116 was demonstrated here, the whole part which forms the insertion opening 119 may be the half-cut part 116.
  • the lid 100 of the first example of the present invention includes a base portion having a small opening having an opening area smaller than the opening 502 of the container 501, and a small opening. It may include a small lid part that opens and closes the opening, and a hinge part that connects the base part and the small lid part.
  • the example of the lid body 100 configured in this manner will be referred to as a third example (third example of the lid body).
  • FIG. 11A and FIG. 11B are a plan view and a cross-sectional view schematically showing an example of the third example of the lid body.
  • FIG. 11A and FIG. 11B are a plan view and a cross-sectional view schematically showing an example of the third example of the lid body.
  • 11C is a cross-sectional view illustrating a state in which the small lid is displaced to expose the small opening.
  • the base material, the hydrophobic powder, the binder, the hydrophobicity imparting part, the joining area corresponding part, the lid area corresponding part, and the outer area corresponding part are the same as those of the lid 100 of the first example.
  • the description of the same points as those described in the lid body 100 of the first example will be omitted.
  • the lid 100 of the third example has a base portion 102, a small lid portion 103, and a hinge portion 104, as shown in FIGS. 11A, 11B, etc.
  • the lid area corresponding part 105B of the lid body 100 has a base part 102, a small lid part 103, and a hinge part 104
  • the outer area corresponding part 105C has a base part 102.
  • the base portion 102 is formed across the lid region corresponding portion 105B and the outer region corresponding portion 105C).
  • the base portion 102 is defined as a portion having a bonding region corresponding portion 105A and forming a small opening portion 106.
  • the base portion 102 can be a portion that determines the displacement standard of the small lid portion 103, which will be described later.
  • the base portion 102 and the small lid portion 103 form an exposed surface 172 of the lid 100 when viewed from above.
  • the joint region corresponding portion 105A forms the joint region R.
  • the base portion 102 corresponds to the portion that is formed on the base portion 102.
  • the small opening 106 is formed so as to penetrate through a surface 173 of the lid 100 facing the container 501 and a surface (exposed surface 172 of the lid 100) of the lid 100 not facing the container 501.
  • the small opening 106 is formed as an opening formed inside the base part 102 (at a position closer to the center CT than the outer peripheral edge 195 of the outer region corresponding part 105C).
  • the small opening 106 is formed inside a portion corresponding to the bonding area corresponding portion 105A in a plan view of the lid 100 so that its opening area is smaller than that of the opening 502 of the container 501.
  • the small opening 106 is for forming an entrance/exit for the contents (for example, drinks, food, etc.) in the space 505 of the container 501 when the lid 100 is joined to the container 501.
  • the small opening 106 forms an opening forming part 120 in combination with the small lid 103 described later.
  • the opening forming part 120 is defined as a part having a small opening 106 and a small lid part 103.
  • the small opening 106 opens and closes as the small lid 103 is displaced.
  • the opening forming part 120 can be arranged in two states: as shown in FIGS. 11A and 11B, the small lid 103 closes the small opening 106, and as shown in FIG. 11C, the small lid 103 is displaced and the small opening 106 is closed. It is formed to be in an open state.
  • the small lid part 103 is rotated so as to pull up the small lid part 103 with respect to the base part 102, the small opening part 106 is exposed and becomes an exposed opening.
  • the opening forming part 120 is arranged so that when the small lid part 103 is pulled up with the lid body 100 attached to the container 501, the small opening part 106 and the small lid part can be visually recognized from the small opening part 106. 103 are combined.
  • the small opening 106 when it is an exposed port, it can be used as a supply port for additional liquid such as a drink or solid material such as ice, as described later. Furthermore, when a liquid such as a beverage is present inside the container 501 (space portion 505), the small opening 106 may be used as a drinking spout or pouring spout for the beverage or the like.
  • the lid body 100 is provided with a small lid portion 103.
  • the small lid portion 103 is formed to be able to cover the small opening 106 in an openable and closable manner.
  • the small lid part 103 is formed so that it can be displaced into a pulled up state with respect to the base part 102, and a small opening part 106 is formed (opened) when the small lid part 103 is pulled up.
  • the small lid 103 is arranged so that the outer peripheral contour shape of the small lid 103 follows the shape of the opening edge 106A of the small opening 106.
  • the shape can be determined. In this case, with the small opening 106 closed by the small lid 103, it is easy to bring the end surface of the outer peripheral edge 103A of the small lid 103 into contact with the end surface of the opening edge 106A of the small opening 106.
  • the small lid part 103 is located inside the joint area corresponding part 105A (lid area corresponding part 105B) (center CT of the lid area corresponding part 105B) in a plan view of the lid 100. side).
  • the small lid part 103 is displaced (rotated) so that the small lid part 103 is in a lifted state.
  • the small lid part 103 is connected to the base part 102 through a hinge part 104. As the small lid part 103 is lifted about the hinge part 104, the small opening part 106 is exposed.
  • the small opening portion 106 is exposed as described above. This state is called the open lid state.
  • a state in which the small opening 106 is covered by the small lid 103 is called a closed state.
  • the lid body 100 Even after it is in the open state (after the small opening 106 is exposed by raising the small lid part 103), it can be brought into the closed state again.
  • the end surface of the opening edge 106A of the small opening 106 of the base portion 102 can face the end surface (outer peripheral end surface) of the outer peripheral edge 103A of the small lid portion 103.
  • the lid 100 has the hinge portion 104.
  • the hinge portion 104 is generally composed of a portion corresponding to a line segment connecting two base end portions 174 along the outer peripheral edge 103A of the small lid portion 103, and is formed at a boundary portion between the base portion 102 and the small lid portion 103. handle.
  • the hinge portion 104 is a portion that becomes a rotation axis when the small lid portion 103 rotates.
  • the small lid part 103 rotates, not only does the small lid part 103 rise from the base part 102 at a certain angle at the position of the hinge part 104, but also the front edge of the small lid part 103 This includes a case where the small lid part 103 gradually curves and rises toward the part 175.
  • the base portion 102 is connected to the small lid portion 103 at least at a hinge portion 104.
  • the structure of the hinge portion 104 is not particularly limited as long as it is a portion defined as a boundary between the base portion 102 and the small lid portion 103.
  • the hinge portion 104 may have a perforation structure or a half-cut portion, similar to the connection structure described below.
  • the small lid part 103 and the small opening are connected.
  • the portion 106 may be divided (may be in an unconnected state), or a connection structure may be formed as described later.
  • the outer peripheral edge 103A of the small lid part 103 A structure (for example, a structure similar to the penetration part 110) is formed to separate the small opening 106 from the opening edge 106A of the small opening 106.
  • the structure of the penetrating portion 110 is the same as that described for the lid 100 of the second example, so the explanation will be omitted.
  • connection structure Connection structure between base and small lid
  • the opening edge 106A of the small opening part 106 of the base part 102 and the small lid part 103 A structure (connection structure) connected at the outer peripheral edge 103A may be formed.
  • the connection structure has a continuous portion 115, which is preferably a weakened portion.
  • the weakened portion may be formed by a combination (perforation structure) of the penetrating portion 110 and the continuous portion 115. Further, the weakened portion may be a structural portion similar to the half-cut portion 116 as described in FIG. 10B. Further, the weakened portion may be a combination of the above-described penetration portion 110 and continuous portion 115 (perforation structure) and the above-described half-cut portion 116. In addition, when forming a half-cut portion 116 to form the fragile portion, the depth of cut for forming the half-cut portion 116 may be the same throughout, or the depth of cut may be changed depending on the location. It may be formed as follows.
  • FIG. 12A is a plan view schematically showing an embodiment of the lid body 100 according to Modification 1 of the third example.
  • FIG. 12B is a cross-sectional view schematically showing the state of the vertical cross-section taken along the line EE in FIG. 12A.
  • the lid 100 according to the first modification of the third example may be the same as the lid 100 according to the third example described above except for the configuration in which the small lid 103 is provided with the knob 121.
  • a description of other components (base portion 102, hinge portion 104, etc.) other than the configuration in which the knob portion 121 is provided will be omitted.
  • knob part In modification 1 of the third example shown in FIGS. 12A and 12B, when the small opening 106 is closed with the small lid 103, the exposed surface of the small lid 103 (exposed surface 172 of the lid 100) A knob 121 is provided on the top side.
  • the structure of the knob 121 is not particularly limited as long as the small lid part 103 can be rotated about the hinge part 104, but in the examples shown in FIGS. 12A and 12B, the tab member 122 is used as the knob 121. It is provided.
  • tab member In the example of FIGS. 12A and 12B, when the small opening 106 is closed by the small lid 103, the tab member 122 has one end 122A of the tab member 122 joined to the small lid 103, and the tab member 122 The other end 122B is a free end. A portion of the tab member 122 that is joined to the small lid portion 103 is referred to as a tab joint portion 123.
  • the portion of the tab member 122 on the free end side (the portion on the other end 122B side), excluding the tab joint portion 123, has a size and shape that allows the tab member 122 to be picked by hand. As long as it is formed, there are no particular limitations on its shape or structure.
  • the material of the tab member 122 may be the same as the material of the lid 100 (the material of the paper-based material 10) described in the lid 100 of the first example, and may be made of a material including a paper-based material.
  • the lid body 100 there are no particular limitations on the mounting position or mounting direction of the tab member 122 on the small lid portion 103, but in the examples shown in FIGS. It is joined to the small lid part 103 at a position (that is, near the front edge part 175).
  • the method for joining the tab member 122 to the small lid part 103 (that is, the method for forming the tab joint part 123) can be exemplified by various methods such as ultrasonic joining, heat sealing, and joining using an adhesive.
  • ultrasonic bonding is preferable as a method for forming the tab bonding portion 123 from the viewpoint of ease of bonding, bonding strength, and the like.
  • the formation position of the tab joint part 123 in the small lid part 103 is determined from the viewpoint of making it easy to raise the small lid part 103 by lifting the tab member 122 (rotating the small lid part 103). It is preferable that the position be shifted from the center of 103.
  • the lid 100 is arranged such that the other end 122B (free end) of the tab member 122 is closer to the hinge 104 than the one end 122A of the tab member 122. has been done.
  • the tab member 122 may be oriented in a direction other than the direction shown in the example of FIG. 12A.
  • the tab member 122 may be arranged such that the other end 122B of the tab member 122 is further away from the hinge portion 104 than the one end 122A of the tab member 122.
  • the small lid part 103 can be easily pulled up (the small lid part 103 is in a lifted state as shown in FIG. 11C). ).
  • FIG. 13A is a plan view schematically showing an embodiment of the lid body 100 according to Modification 2 of the third example.
  • FIG. 13B is a cross-sectional view schematically showing the state of the vertical cross-section taken along the line FF in FIG. 13A.
  • the structure of the holding structure forming part is not particularly limited.
  • the claw portion 124 and the receiving portion 125 form a holding structure forming portion.
  • the claw portion 124 may be any portion having a structure that can be latched to a receiving portion 125, which will be described later, by latching, insertion, or the like.
  • the claw portion 124 is provided on a tab member 122, which is an example of the knob portion 121. Further, in this example, the claw portion 124 is formed by a notch portion formed in a predetermined position of the tab member 122 in an outline shape such as a generally chevron shape.
  • the receiving portion 125 is formed in such a shape that the claw portion 124 can be engaged with or inserted into the receiving portion 125 .
  • the receiving portion 125 is a slit portion formed by notching the base portion 102 at a predetermined position.
  • the receiving portion 125 may be a structural portion corresponding to the penetrating portion 110 described in the lid 100 of the second example.
  • the receiving portion 125 is formed at a position where it can face the claw portion 124 when the tab member 122 is displaced so as to rotate the small lid portion 103.
  • FIG. 14A is a plan view schematically showing an example of a lid body 100 according to a fourth example.
  • FIG. 14B is a cross-sectional view schematically showing the state of the vertical cross-section taken along the line GG in FIG. 14A.
  • the base material, the hydrophobic powder, the joint area corresponding part, the lid area corresponding part, and the outer area corresponding part are the same as those of the lid 100 of the first example.
  • the description of the same points as those described in the lid body 100 of the first to third examples will be omitted.
  • the protrusion 143 is formed on the exposed surface 172 side of the lid 100.
  • the convex portion 143 is preferably provided inward from the inner edge of the bonding region corresponding portion 105A. That is, the convex portion 143 may be formed on the entire lid area corresponding portion 105B, or may be provided on a portion of the inside of the lid area corresponding portion 105B. In the examples shown in FIGS. 14A and 14B, the convex portion 143 is formed inward from the concave portion 144 and continues to the concave portion 144.
  • the convex portion 143 indicates a portion that protrudes upward (+Z-direction side) along the up-down direction (Z-axis direction) with respect to the position of the bonding region corresponding portion 105A. Note that there may be further unevenness inside the portion where the convex portion 143 is formed.
  • a depressed portion 145 is formed in a portion of the lid body 100 that corresponds to the convex portion 143 on the side opposite to the exposed surface 172 (opposed surface 173 side) (opposite portion). In this case, the portion forming the convex portion 143 becomes a convex structure in the embossed structure.
  • the recess 144 is formed around the protrusion 143 as described above.
  • the recess 144 forms an annular groove-like structure.
  • the convex portion 143 indicates a portion that protrudes upward (+Z-direction side) along the up-down direction (Z-axis direction) with respect to the position of the bonding region corresponding portion 105A. Note that there may be further unevenness inside the portion where the recessed portion 144 is formed.
  • a protrusion 146 is formed in a portion corresponding to the recess 144 (an opposite portion) on the side opposite to the exposed surface 172 of the lid body 100 (opposing surface 173 side). In this case, the portion forming the recess 144 becomes a recessed structure in the embossed structure.
  • the insertion port 119 described in the second example, etc. may be formed in the convex portion 143 of the lid body 100.
  • a height difference structure Z-axis By forming the structural portion (which forms a positional difference in the direction), it is possible to suppress the risk of liquid leaking from the insertion port 119 to the outside of the lid body 100.
  • the lid 100 may omit the formation of the recess 144 and form a convex portion 143, or as shown in FIG. 14D, the lid 100 may have the convex portion 143 formed.
  • the recess 144 may be formed by omitting the above.
  • the lid body 100 of the first to fourth examples according to the present invention includes a content identification section 152 configured by a combination structure of a label section 150 and a display section 151 in the outer area corresponding section 105C. may be formed.
  • the lid having such a structure will be referred to as a fifth example (fifth example of the lid).
  • FIG. 15 is a plan view schematically showing an example of the lid body 100 according to the fifth example.
  • the lid body 100 according to the fifth example is the same as the first to fourth examples except for the combination structure of the label part 150 and the display part 151.
  • the description of the same points as those described in the lids of the first to fourth examples will be omitted.
  • the lid body 100 includes a plurality of label parts 150 on the outer peripheral edge 195 of the outer region corresponding part 105C.
  • the label portion 150 may be formed of a portion (extending portion) extending outward from the outer peripheral edge 195 of the outer region corresponding portion 105C.
  • the label portions 150 are formed to be individually bendable around the base end 150A.
  • the base end 150A of the label portion 150 is defined by a straight line that connects two positions (projection start positions NB1 and NB2) at which protrusion is started along the outer peripheral edge 150B of the label portion 150.
  • the size and shape of the label portion 150 are not particularly limited as long as the label portion 150 has a protruding shape that allows the user to bend the label portion 150 by hand or the like. When three or more label portions 150 are formed, the label portions 150 may be formed so that the spacing thereof is equal.
  • the display part 151 is provided at a position shifted from the label part 150 toward the inside of the lid area corresponding part 105B.
  • the display part 151 is provided at a position shifted from the label part 150 toward the inside of the lid area corresponding part 105B. This also includes a case where the display section 151 is formed across both portions that are shifted toward each other.
  • the display section 151 may be any of characters, figures, shapes, colors, symbols, etc., or may be a combination of these. Further, the display units may be connected to each other. In the example of FIG. 15, the display section 151 is composed of characters. Each display portion 151 may be a portion formed with characters such as COLA, TEA, JUICE, OTHER, etc., for example. Note that the display portion 151 may be a printed portion or may be a portion formed with an uneven shape by embossing or the like. In the example of FIG. 15, the display section 151 is a printing section. In this example, the printed portion is a portion on which characters are printed.
  • the combination of the label section 150 and the display section 151 constitutes a content identification section 152.
  • a combination of the label portion 150 and the display portion 151 is formed, and the label portion 150 and the display portion 151 are formed at shifted positions, so the label portion 150 is folded and the contents are displayed.
  • the display section 151 can be prevented from being hidden, and the combination of the label section 150 and the display section 151 can effectively function as the content identification section 152.
  • FIG. 16A is a plan view schematically showing an example of the lid body 100 according to the sixth example.
  • An extending portion 111 is formed at a portion extending outward from the outer peripheral edge 195 of the outer region corresponding portion 105C.
  • the shape of the extending portion 111 is not particularly limited, in the example of FIG. 16A, the shape of the extending portion 111 is determined so that the outer peripheral edge 111A of the extending portion 111 has a convexly gently curved chevron shape. ing.
  • a mark or text indicating the container 501 corresponding to the lid 100 can be placed on the extending portion 111.
  • letters such as S, M, and L are placed on the extending portion 111 by printing or the like.
  • the lid 100 with the letter S printed on it is used, and when the size of the container 501 is medium size, the lid with the letter M printed on it is used.
  • the container 501 is a large size container 501, the types of the container 501 and the lid 100 are associated so that the lid 100 with the letter L printed thereon is used. Thereby, when joining the lid 100 to the container 501, it is possible to suppress the possibility that the container 501 and the lid 100 are joined in a wrong combination of different sizes.
  • FIG. 16B is a plan view schematically showing an example of the lid 100 according to the sixth example (an example in which an extension part 111 is further formed in one example of the lid 100 according to the third example). be.
  • the position of the extending portion 111 is such that the tip end side (front end edge 175 side) of the small lid portion 103 is located between the extending portion 111 and the hinge portion 104 in the closed state.
  • a weakened portion 114 is formed as a connection structure at the boundary between the outer peripheral edge 103A of the small lid portion 103 and the opening edge 106A of the small opening portion 106.
  • a continuous portion 115 is arranged in a position close to the extension portion 111 in the weakened portion 114, and a hinge is formed along the boundary position between the outer peripheral edge 103A of the small lid portion 103 and the opening edge 106A of the small opening portion 106.
  • a penetrating portion 110 is formed from the portion 104 toward the continuous portion 115.
  • the extension part 111 in a state where the extension part 111 is pinched, the outer area corresponding part including the joint area corresponding part 105A is moved from the outer periphery of the outer area corresponding part 105C (base end of the extension part 111) to the lid area corresponding part 105B.
  • the extension part 111 can be connected to the small lid part 103 via the continuous part 115.
  • the small cover part 103 along with the extension part 111 moves along the penetration part 110 that forms the boundary between the small cover part 103 and the small opening part 106, with the hinge part 104 as an axis. can be raised.
  • the extending portion 111 can function as the above-mentioned knob portion 121, and can perform the function of pulling up the small lid portion 103.
  • the lid 100 is joined to the container 501 in the state of a container with a lid 500, which will be described later, to form a joint portion 651.
  • the joint 651 is a part where the container 501 and the lid 100 are bonded (including adhesive) to each other, and in order to separate the lid 100 and the container 501, the lid 100 and This results in separation from the container 501.
  • the lid body 100 using the paper-based material 10 is not limited to this type of material, but can be a lid that fits onto the container 501, as described in the description of the seventh to ninth examples of the lid body below.
  • the body 201 may be applied as a lid using the paper-based material 10.
  • each of the lid bodies described in the seventh to ninth examples of the lid body each has a canopy part 202 and a side wall part 203, as described later. At least the canopy portion 202 is formed using the paper-based material 10 according to the present invention.
  • the description of each lid body of the seventh to ninth examples will be continued with reference to the drawings.
  • the lid body 201 according to the present invention has a canopy part 202 and a side wall part 203 (seventh example), as illustrated in FIGS. 18A and 18B. This example will be referred to as a seventh example (seventh example of the lid body).
  • the lid 201 according to the seventh example is a container having an opening 502 formed at the upper end and an edge 503 serving as the upper edge forming the outer periphery of the opening 502, as described later using FIG. 24 etc. is formed so that it can be contacted.
  • FIG. 18A is a perspective view schematically showing an example of a lid body according to a seventh example.
  • FIG. 18B is a cross-sectional view schematically showing an example of the lid body according to the seventh example. Note that FIG. 18B shows a state of a longitudinal section taken along line II in FIG. 18A.
  • FIG. 24 is a sectional view showing an example of a container 500 with a lid, in which the lid 201 shown in FIGS. 18A and 18B is joined to the container 501.
  • the lid 201 preferably has a bent portion 204.
  • the bent portion 204 is a part that connects the canopy portion 202 and the side wall portion 203, and in the examples shown in FIGS. 18A and 18B, the bent portion 204 and the side wall portion 203 are continuously (integrally) formed. .
  • the canopy part 202 becomes a part that covers the opening 502 of the container 501 when the lid 201 is attached (installed) to the container 501, as shown in FIG.
  • the shape of the canopy part 202 may be determined according to the shape of the container 501, and examples thereof include a circular shape, an elliptical shape, a triangular shape, a rectangular shape, a polygonal shape, a chamfered shape, and the like.
  • the bent portion 204 is formed so as to surround the outer peripheral edge of the canopy portion 202 and forms a boundary between the canopy portion 202 and the side wall portion 203.
  • the bent portion 204 is formed such that when the lid 201 is attached to the container 501, the side wall portion 203 faces the side wall 504 and edge 503 of the container 501.
  • the bent portion 204 has a bent structure, but the bent portion 204 is not limited to having a bent structure, as will be described later.
  • the part forming the boundary between the canopy part 202 and the side wall part 203 includes cases where the part itself forms a boundary, cases where the boundary is defined inside or at the end of the part (the canopy part 202 and/or the side wall part 203). (a case where a part of the portion 203 also serves as the bent portion 204) is included.
  • the boundary between the canopy part 202 and the side wall part 203 is defined at the center of the bent part 204.
  • the bent portion 204 has a curved structure (for example, FIGS. 23A to 23B showing an example of Modification 4 of the seventh example of the lid described later)
  • the bent portion 204 is specified in a curved range.
  • the boundary between the canopy part 202 and the side wall part 203 is defined approximately at the center of the curved part 204.
  • the side wall portion 203 is formed in an annular shape along the outer peripheral edge of the canopy portion 202 .
  • the lid body 201 according to the seventh example is formed by integrally forming the canopy part 202, the bent part 204, the side wall part 203, and the canopy part 202 by integrally molding the blank material 250 for forming the lid body 201. ,Obtainable.
  • the blank 250 may be formed in the same manner as the blank 130 shown in the description of the first example of the lid. That is, the blank material 250 is formed from the paper-based material 10.
  • the lid body 201 has a contact portion 274 that comes into contact with the container 501 in a state where the lid body 201 is fitted into the container 501.
  • the contact portion 274 is formed in a predetermined portion of the side wall portion 203 (first contact portion 274A). Furthermore, as shown in FIG. 18B, the contact portion 274 is preferably formed in a portion (second contact portion 274B) corresponding to a predetermined region of the canopy portion 202 on the opposing surface 273 side.
  • the contact portion 274 is formed, so that it is possible to suppress the possibility that the contents of the container 501 will leak to the outside.
  • the first contact portion 274A is preferably formed around the entire outer surface end of the edge 503 of the container, and is preferably formed in an annular shape.
  • the second contact portion 274B is preferably formed around the entire upper end of the edge 503 of the container, and is preferably formed in an annular shape.
  • the first contact portion 274A and the second contact portion 274B may be separated from each other or may be connected.
  • the contact portion 274 including the first contact portion 274A and the second contact portion 274B shown in the fifth embodiment, the same applies to the eighth example and the ninth example described below.
  • a penetrating portion 210 is formed at a predetermined position of the canopy portion 202.
  • An insertion port 219 is formed as this penetrating portion 210 .
  • the penetrating portion 210 is formed by the cut portion 208 .
  • the cut portion 208 is a cross cut.
  • the insertion port 219 and the penetration portion 210 may be formed in the same manner as the insertion port 119 and the penetration portion 110 described in the second example of the lid.
  • the penetrating portion 210 is a portion that penetrates the canopy portion 202 from the exposed surface 272 to the opposing surface 273.
  • the canopy part 202 and the side wall part 203 may be formed of separate members, as shown in FIGS. 21A, 21B, etc. (Modification 1 of the seventh example) .
  • Modification 1 of the seventh example includes a case where a part of the member forming the canopy part 202 forms a part of the side wall part 203, and a part of the member forming the side wall part 203 forms a part of the canopy part 202. This includes cases where it forms part of. 21A and 21B show an example in which a part of the member forming the canopy part 202 forms a part of the side wall part 203.
  • a method for forming the lid body 201 of Modification 1 of the seventh example shown in FIGS. 21A, 21B, etc. will be described.
  • a canopy forming member 222 having a first portion 231 for forming the canopy 202 as shown in FIGS. 22A and 22B and a side wall forming member 223 for forming the side wall 203 are prepared.
  • a joining allowance 230 configured to be able to be joined to the side wall forming member 223 as a second portion 232 extends from the outer end (outer edge end) of the first portion 231 of the canopy forming member 222 .
  • the bent part 204 is formed by joining the canopy part forming member 222 and the side wall part forming member 223.
  • the lid body 201 is formed.
  • FIG. 22A FIG. material 252
  • the first blank material 251 for forming the canopy part forming member 222 a sheet material formed in a shape that matches the shape of the canopy part 202 with the joining allowance 230 may be used.
  • the second blank material 252 has a shape corresponding to the shape of the side wall portion 203.
  • the second blank material 252 is formed in a fan shape (partial fan shape).
  • a sheet material formed in The side wall portion forming member 223 that forms the side wall portion 203 can be obtained by joining the end edges 253, 253 at both ends of the second blank material 252.
  • At least one blank material selected from the group consisting of the first blank material 251 and the second blank material 252 may be formed in the same manner as the blank material 130 described above. That is, at least one blank material selected from the group consisting of the first blank material 251 and the second blank material 252 is formed from the paper-based material 10. In the examples of FIGS. 21A, 21B, 22A, and 22B, the paper-based material 10 is applied to the first blank material and the second blank material.
  • the side wall portion 203 is formed to taper downward (in the -Z direction) (the inner diameter of the cross section becomes smaller (reduced diameter)).
  • the side wall portion 203 may be formed so that it becomes thicker toward the bottom (the inner diameter of the cross section becomes larger (increases in diameter)).
  • the side wall portion 203 may be formed so as not to taper toward the bottom (the cross-sectional inner diameter is constant); (modification 2 of the seventh example). What is shown in Modified Example 2 of the seventh example also applies to the eighth to ninth examples described later.
  • cross section indicates a cut surface of the side wall section that is observed when the side wall section is cut along a plane whose normal is the vertical direction.
  • the cross-sectional inner diameter indicates the diameter on the inner circumferential surface side when the cut surface (cross-section) is approximately annular.
  • the canopy part 202 of the lid body 201 according to the seventh example may further include the configurations described in the second to sixth examples (modification 3 of the seventh example). Therefore, for example, in the third modification of the seventh example, the canopy section 202 may have a configuration corresponding to the opening forming section 120. Moreover, it is not prohibited to provide the lid body 201 according to the seventh example with a configuration corresponding to each of the modified examples shown in the first to sixth examples. In the lid body 201 according to the third modification of the seventh example, the configuration of the insertion port 219 may be omitted. What is shown in Modified Example 3 of the seventh example also applies to the eighth to ninth examples described later.
  • the bent portion 204 may be configured with a projecting portion 226, as shown in FIGS. 23A to 23B. Furthermore, even if the convex portion 225 is formed at the end (outer end 228B) of the end portion (inner end 228A, outer end 228B) of the overhanging portion 226 that is closer to the side wall portion 203, or in the vicinity thereof. good.
  • a predetermined area on the outer peripheral end side of the canopy part 202 has a structure that projects diagonally upward (an overhanging structure).
  • the projecting direction of the projecting portion 226 may be in an upward direction or in a lateral direction (in the plane direction of the canopy portion 202).
  • the inner surface 226A side of the projecting portion 226 is a recessed portion (recessed portion 227).
  • the shape of the recessed portion 227 corresponds to the shape of the protruding portion 226. This can be realized depending on the shape of the mold used when forming the lid body 201 from the blank material 250.
  • the size of the recessed portion 227 is preferably large enough to fit the edge 503 of the container 501. If the recessed portion 227 has such a size, when the lid 201 is used as the lidded container 500, the edge 503 will generally fit into the recessed portion 227, and the outer end portion of the edge 503 ( In the examples of FIGS. 23A and 23B, it is possible to bring the outer circumferential surface part 511 of the edge 503 into surface contact with the recessed part 227, and to securely attach the lid 201 to the edge 503 of the container 501. becomes easier.
  • a convex portion 225 may be formed on the side wall portion 203.
  • the convex portion 225 is defined, for example, as a portion that protrudes inward (center CT direction, direction from the outer circumferential surface 203B to the inner circumferential surface 203A of the side wall portion 203) at a predetermined position of the side wall portion 203. It is preferable that the convex portion 225 is a convex strip portion formed in a strip shape so as to go around the inner circumferential surface of the side wall portion 203 .
  • a convex structure of a convex portion 225 may be formed on the inner circumferential surface side of the side wall portion 203, and a recess portion 224 may be formed on the outer circumferential surface 203B side of the side wall portion 203 at a position corresponding to the position where the convex structure is formed.
  • FIGS. 19A and 19B the lid 201 according to the eighth example is similar to the seventh example of the lid in that it has a canopy part 202 and a side wall part 203 and can be fitted into a container.
  • FIG. 19A is a perspective view schematically showing an example of the lid body according to the eighth example.
  • FIG. 19B is a cross-sectional view schematically showing an example of the lid body according to the eighth example. Note that FIG. 19B shows the state of a longitudinal section taken along the line JJ in FIG. 19A.
  • the lid body 201 according to the eighth example has a configuration in which a part of the side wall portion 203 extends above and below the canopy portion 202.
  • the side wall portion 203 has an annular (including cylindrical) shape, and includes an upper wall 205 and a lower wall 206.
  • the lower wall 206 is a portion extending downward from the canopy portion 202
  • the upper wall 205 is comprised of a portion of the side wall portion 203 excluding the lower wall 206.
  • the side wall portion 203 is formed to taper downward.
  • the penetrating portion 210 is formed at a predetermined position of the canopy portion 202, but this is only an example.
  • the canopy part 202 and the side wall part 203 are formed of separate members.
  • the lid body 201 has a canopy forming member 222 and a side wall forming member 223 as the above-mentioned separate members, and the canopy forming member 222 and the side wall forming member 223 are joined together. It has a joint that
  • the canopy forming member 222 includes a first portion corresponding to the canopy 202 (the first portion 231 of the canopy forming member 222), and a second portion extending from the outer peripheral end of the first portion 231 (the canopy forming member 222).
  • the second portion 232) of the portion forming member 222 is the joining allowance 230 shown in the first modification of the fifth embodiment.
  • the second portion 232 of the canopy forming member 222 is a portion (rising portion) that rises diagonally upward or directly upward from the outer peripheral end of the first portion 231 in the state of the lid 201. In this state, the second portion 232 becomes a part of the side wall portion 203 in a state where the second portion 232 is joined to the side wall portion forming member 223.
  • the side wall forming member 223 is formed in an annular shape (including a cylindrical shape) and includes a portion forming the upper wall 205 (upper forming portion) and a portion forming the lower wall 206 (lower forming portion).
  • the upper part forming part has a part (first contact wall part 233) that contacts at least the outer surface side with the joining margin 230 which becomes the second part 232 of the canopy part forming member 222.
  • the upper wall 205 (upper forming part) is in contact with the first contact wall part 233 and the joining margin 230 that becomes the second part 232 of the canopy part forming member 222 on the inner side. (second contact wall part 234), and a continuous part 235 that connects the first contact wall part 233 and the second contact wall part 234, and the continuous part 235 is the second part of the canopy part forming member 222. It covers the upper end surface of the joining margin 230.
  • the lower end of the second contact wall portion 234 is located on the upper surface side of the first portion 231 of the canopy portion forming member 222, and is slightly spaced from the first portion 231 in the examples of FIGS. 19A and 19B. .
  • the lower wall 206 (lower forming portion) is a portion that extends downward (diagonally downward in FIGS. 19A and 19B) with the lower end of the first contact wall portion 233 as the base end. It has become.
  • the lower wall 206 (lower forming part) is preferably located below the lower surface of the first portion 231 of the canopy forming member 222 in terms of the vertical position, for example.
  • the lid body 201 according to the eighth example can be formed by processing a blank material.
  • the blank material includes a blank material for forming the canopy forming member 222 and the side wall forming member 223 (the first blank material and the second blank material, respectively, as described above in Modification 1 of the seventh example of the lid). material) can be used.
  • At least one blank material selected from the group consisting of the first blank material and the second blank material is a paper-based material similar to the blank material 130 described above in the modification 1 of the seventh example of the lid. Material 10 is applied.
  • the first blank material for forming the canopy part forming member 222 may be the same as the first blank material 251 described above in Modification 1 of the seventh example of the lid body, and the shape of the canopy part 202 may be A sheet material formed in a shape that further includes a joining allowance 230 may be used.
  • the canopy part forming member 222 can form a first part 231 corresponding to the canopy part 202 and a rising part (second part 232 serving as a joining margin) by bending and forming a first blank material.
  • the second portion 232 is preferably formed by bending the first blank material upward at the peripheral edge position of the first portion 231 (base end of the joining allowance 230).
  • the second blank material for forming the side wall portion forming member 223 may be the same as the second blank material 252 described above in Modification 1 of the seventh example of the lid, and is formed in a fan shape.
  • a sheet material may be used.
  • the upper end portion of the annular body is folded inward at a position corresponding to the continuous portion 235, so that the first contact wall portion 233 and
  • an upper forming portion (a structural portion corresponding to the upper wall 205) can be formed, and a lower forming portion (a structural portion corresponding to the lower wall 206) is further formed. can do.
  • the side wall forming member 223 is formed. Note that at least the first contact wall portion 233 and the second contact wall portion 234 are bonded to the bonding margin 230. In the example of FIG. 19B, the first contact wall portion 233, the second contact wall portion 234, and the continuous portion 235 are bonded to the bonding margin 230 to form a bonded portion.
  • the lid body 201 it is preferable to join the above-mentioned annular body formed from the second blank material to the canopy part forming member 222.
  • the lower end of the joining allowance 230 (second portion 232) of the canopy forming member 222 is located at the boundary between the lower forming part and the upper forming part (the boundary between the upper wall 205 and the lower wall 206) on the inner peripheral surface of the annular body. position), and the joining margin 230 is made to face the inner circumferential surface of the annular body. Further, as described above, by folding back the upper end portion of the annular body inward at a position corresponding to the continuous portion 235 in the annular body, the joining margin 230 is covered from the upper end side.
  • the joining margin 230 is joined to the annular body that will become the side wall part forming member 223 so as to be sandwiched between the first contact wall part 233 and the second contact wall part 234.
  • the side wall forming member 223 is formed and the lid 201 is obtained.
  • the lid 201 according to the ninth example is similar to the seventh example of the lid in that it has a canopy part 202 and a side wall part 203 and can be fitted into a container.
  • FIG. 20A is a perspective view schematically showing an example of the lid body according to the ninth example.
  • FIG. 20B is a cross-sectional view schematically showing an example of the lid body according to the ninth example. Note that FIG. 20B shows a state of a longitudinal section taken along the line KK in FIG. 20A.
  • the lid body 201 according to the ninth example has a configuration in which a part of the side wall portion 203 extends above and below the canopy portion 202.
  • the side wall portion 203 has an annular (including cylindrical) shape, and includes an upper wall 205 and a lower wall 206.
  • the lower wall 206 is a portion extending downward from the canopy portion 202
  • the upper wall 205 is comprised of a portion of the side wall portion 203 excluding the lower wall 206.
  • the side wall portion 203 is formed to taper downward.
  • the penetrating portion 210 is formed at a predetermined position of the canopy portion 202, but this is only an example.
  • the canopy part 202 and the side wall part 203 are formed from separate members, as shown in the description of the modification 1 of the seventh example of the lid and the eighth example of the lid. ing.
  • the lid body 201 shown in the example of FIGS. 20A and 20B has a canopy forming member 222 and a side wall forming member 223 as the above-mentioned separate members, and the canopy forming member 222 and the side wall forming member 223 are joined together. It has a joint that
  • the canopy forming member 222 includes a first portion corresponding to the canopy 202 (the first portion 231 of the canopy forming member 222), and a second portion extending from the outer peripheral end of the first portion 231 (the canopy forming member 222).
  • the second portion 232) of the portion forming member 222 is the joining allowance 230 shown in the first modification of the fifth embodiment.
  • the second portion of the canopy forming member 222 is a portion (hanging portion) extending diagonally downward or directly downward from the outer peripheral end of the first portion 231, and forms a side wall portion. In a state where the second portion 232 is joined to the forming member 223, the second portion 232 becomes a part of the side wall portion 203.
  • the side wall forming member 223 is formed in an annular shape (including a cylindrical shape) and includes a portion forming the upper wall 205 (upper forming portion) and a portion forming the lower wall 206 (lower forming portion).
  • the lower part forming part has a part (lower first contact wall part 237) that is in contact at least on the outer surface side with the joining margin 230 which becomes the second part 232 of the canopy part forming member 222.
  • the lower part forming part is a part (lower first contact wall part 237) that contacts the joint allowance 230, which becomes the second part 232 of the canopy part forming member 222, on the inner surface side. 2 contact wall portions 238 ), and a lower end side continuous portion 239 that further connects the lower first contact wall portion 237 and the lower second contact wall portion 238 . It covers the lower end surface of the joining margin 230 which becomes the portion 232 of No. 2.
  • the upper end of the lower second contact wall portion 238 is located on the lower surface (opposing surface 273) side of the first portion 231 of the canopy forming member 222, and in the example of FIGS.
  • the upper end of the first portion 231 Preferably, it is spaced apart from. It is preferable that the edge 503 of the container 501 (for example, a part of the outer peripheral surface of the curled portion 508) can fit between the first portion 231 and the upper end of the lower second contact wall portion 238.
  • the upper wall 205 (upper forming part) is a part that extends upward (diagonally upward in FIG. 20B) with the upper end of the lower first contact wall 237 as the base end. ing.
  • the upper wall 205 (upper forming part) is preferably located above the upper surface of the first portion 231 of the canopy forming member 222 in terms of the vertical position.
  • the upper forming portion has a curled portion (side wall upper end curled portion 236) formed on its upper end side.
  • the end face of the blank material (the second blank material for forming the side wall part forming member 223) from being exposed at the upper end of the upper forming part, and the user can Even when the user ingests the contents in the container 501 by placing his/her mouth on the end surface of the blank material, it is possible to suppress the discomfort caused by the user's mouth touching the end surface of the blank material. Further, by forming the side wall upper end curl portion 236, liquid is less likely to come into contact with the portion of the side wall portion 203 that corresponds to the end surface of the blank material.
  • the lid body 201 according to the ninth example can be formed by processing a blank material.
  • the blank material includes a blank material for forming the canopy forming member 222 and the side wall forming member 223 (the first blank material and the second blank material, respectively, as described above in Modification 1 of the seventh example of the lid). material) can be used.
  • At least one blank material selected from the group consisting of the first blank material and the second blank material is a paper-based material similar to the blank material 130 described above in Modification 1 of the seventh example of the lid. Material 10 is applied.
  • the first blank material for forming the canopy part forming member 222 may be the same as the first blank material 251 described above in Modification 1 of the seventh example of the lid body, and can be used to form the canopy part forming member 222.
  • a sheet material formed in a shape that further includes a joining allowance 230 may be used. It is preferable that the canopy part forming member 222 forms a first part 231 corresponding to the canopy part 202 and a second part 232 which becomes the joining margin 230 by bending and forming a first blank material. That is, the second portion 232 is preferably formed by bending the first blank material downward at the peripheral edge of the first portion 231 .
  • the second blank material for forming the side wall portion forming member 223 may be the same as the second blank material 252 described above in Modification 1 of the seventh example of the lid, and is formed in a fan shape.
  • a sheet material may be used.
  • the above-mentioned annular body formed from the second blank material be joined to the canopy part forming member 222.
  • the upper end of the joining allowance 230 (second portion 232) of the canopy forming member 222 is located at the boundary position between the lower forming part and the upper forming part (the boundary position between the upper wall 205 and the lower wall 206) on the inner peripheral surface of the annular body. ), and the joining margin 230 is made to face the inner circumferential surface of the annular body. Further, as described above, by folding back the lower end portion of the annular body inward at a position corresponding to the lower end side continuous portion 239 of the annular body, the joint allowance 230 is covered from the lower end side.
  • the joining margin 230 is joined (adhered) to the lower forming part (the annular body forming the side wall forming member 223) so as to be sandwiched between the lower first contact wall part 237 and the lower second contact wall part 238.
  • the side wall forming member 223 is formed and the lid 201 is obtained.
  • FIG. 17A is a perspective view showing an example in which the lid 100 according to the first example is joined to an edge 503 forming the outer periphery of an opening 502 of a container 501 having an opening 502 formed at the upper end.
  • FIG. 17B is a cross-sectional view schematically showing the state of the longitudinal cross-section taken along line HH in FIG. 17A. The description of the lidded container 500 will be continued using FIGS. 17A and 17B.
  • a container 501 in which the lid 100 according to the first example is attached will be described as an example.
  • a contact portion is formed by attaching the container 501 to the lid 100.
  • a joint portion 651 formed by joining the lid 100 to the container 501 is formed as a contact portion, and a region of the lid 100 that forms the joint portion 651 is a joint region R.
  • the method of joining the lid 100 and the container 501 is not particularly limited, and a joining method such as a pressure bonding method or a heat sealing method can be used as appropriate.
  • the container 501 has a cylindrical side wall 504 whose diameter increases upward (tapering downward) and a bottom 507, and has a space inside.
  • the container body 510 has a container body 510 forming a section 505, and an opening 502 that is opened at the upper end of the container body 510 (the upper end of the side wall 504).
  • the opening 502 of the container 501 is formed in a circular shape.
  • the container 501 shown here is an example, and the configuration of the container 501 is not limited.
  • the container 501 may have an opening 502 formed in a rectangular shape.
  • the container 501 may be of any type as long as the opening 502 can be covered with the lid 100.
  • what is stored inside the container 501 (the space 505) is not particularly limited, and may be, for example, a liquid, a solid, or a combination thereof.
  • the edge 503 of the opening 502 has a flange.
  • the flange portion may be a curled portion 508 formed by winding the member forming the container body 510 outward as shown in FIGS. ) may be formed as
  • the lid 100 may be combined with a container 501 having an opening 502.
  • FIG. 24 is a cross-sectional view showing an example in which a lid 100 according to the seventh example is fitted to an edge 503 forming the outer periphery of an opening 502 of a container 501 having an opening 502 formed at the upper end. be.
  • the description of the lidded container 500 according to Application Example 2 will be continued with reference to FIG. 24.
  • the lid 201 can be attached to the container 501 by fitting the lid 201 into the edge 503 forming the outer periphery of the opening 502 of the container 501 having the opening 502 formed at the upper end.
  • the contact portion can be formed as a portion where the container 501 and the lid 201 are brought into contact (where the edge portion 503 and the canopy portion 202 are brought into contact).
  • the configuration of the container 501 may be the same as that of the container described above in Application Example 1, so detailed description thereof will be omitted.
  • the lid 201 may be combined with a container 501 having an opening 502.
  • the container with lid 500 is also applicable. It can also be used as a combination of the lid 100 and the container 501 (not shown).
  • the present invention may adopt the configurations shown in the following [E1] to [E11].
  • [E1] A paper-based base material having a plurality of fibers, a hydrophobic powder made of a hydrophobic compound, and a binder for bonding the hydrophobic powder and the fibers, and at least one of the base materials
  • a paper-based material having, on its surface side, an adhesive portion in which the hydrophobic powder and the fibers are bonded together using the binder.
  • the binder is disposed in a gap between at least some of the adjacent fibers located on the bonding part formation surface as the surface on which the bonding part is formed among the fibers on the surface of the base material, and at least one of the binder
  • the surface of the surface of the base material on which the adhesive portion is formed has a mottled area in which the binder is placed and an area where the binder is not placed in a plan view of the base material.
  • At least a portion of the hydrophobic powder is on the surface of the base material on which the adhesive portion is formed, and at least a portion of the hydrophobic powder is exposed on the surface of the base material.
  • [E5] The paper-based material according to any one of [E1] to [E4] above, wherein the binder is present further inside the base material than the hydrophobic powder.
  • [E6] The paper-based material according to any one of [E1] to [E5] above, wherein the hydrophobic powder is a starch-based compound, and the gelatinization temperature of the starch-based compound is higher than the melting point of the binder.
  • a lid body comprising a top surface portion and a side wall portion surrounding the top surface portion, and at least the top surface portion is formed from the paper-based material according to any one of [E1] to [E8] above.
  • a container with a lid A combination of a lid and a container, comprising the lid according to [E9] or [E10] above, and a container having an opening formed at an upper end and an edge forming an outer periphery of the opening.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Wrappers (AREA)

Abstract

La présente invention concerne un matériau à base de papier (10) comportant un matériau de base à base de papier (11) doté d'une pluralité de fibres (12A), une poudre hydrophobe (13) configurée à partir d'un composé hydrophobe, et un liant (14) qui lie la poudre hydrophobe (13) et les fibres (12A), au moins un côté de la surface du matériau de base (11) comportant une partie liée (17) où la poudre hydrophobe (13) et les fibres (12A) sont liées par le liant (14).　La présente invention concerne également un matériau à base de papier servant de matériau non plastique qui peut limiter le glissement des liquides adhérant à sa surface et qui résiste à l'eau, un couvercle dans lequel le matériau à base de papier est utilisé, un récipient équipé du couvercle, et une combinaison du couvercle et du récipient.
PCT/JP2023/021986 2022-06-13 2023-06-13 Matériau à base de papier, couvercle, récipient équipé d'un couvercle, et combinaison de couvercle et de récipient WO2023243647A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US202263351548P 2022-06-13 2022-06-13
US63/351,548 2022-06-13
US202263393620P 2022-07-29 2022-07-29
US63/393,620 2022-07-29

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JP (1) JP2023182002A (fr)
WO (1) WO2023243647A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07501351A (ja) * 1991-08-12 1995-02-09 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー 分解可能な、撥液コーティングされた物品
JP2002179926A (ja) * 2000-12-14 2002-06-26 Dainippon Ink & Chem Inc 防湿加工用樹脂組成物および防湿材
WO2016190262A1 (fr) * 2015-05-26 2016-12-01 凸版印刷株式会社 Matériau d'emballage et contenant d'emballage
WO2020136598A1 (fr) * 2018-12-26 2020-07-02 プランティック・テクノロジーズ・リミテッド Composition de résine
JP2022130266A (ja) * 2021-02-25 2022-09-06 王子ホールディングス株式会社 耐水性紙および液体容器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07501351A (ja) * 1991-08-12 1995-02-09 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー 分解可能な、撥液コーティングされた物品
JP2002179926A (ja) * 2000-12-14 2002-06-26 Dainippon Ink & Chem Inc 防湿加工用樹脂組成物および防湿材
WO2016190262A1 (fr) * 2015-05-26 2016-12-01 凸版印刷株式会社 Matériau d'emballage et contenant d'emballage
WO2020136598A1 (fr) * 2018-12-26 2020-07-02 プランティック・テクノロジーズ・リミテッド Composition de résine
JP2022130266A (ja) * 2021-02-25 2022-09-06 王子ホールディングス株式会社 耐水性紙および液体容器

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