WO2011118521A1 - 積層体およびその製造方法ならびに成形容器 - Google Patents
積層体およびその製造方法ならびに成形容器 Download PDFInfo
- Publication number
- WO2011118521A1 WO2011118521A1 PCT/JP2011/056542 JP2011056542W WO2011118521A1 WO 2011118521 A1 WO2011118521 A1 WO 2011118521A1 JP 2011056542 W JP2011056542 W JP 2011056542W WO 2011118521 A1 WO2011118521 A1 WO 2011118521A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- laminate according
- cellulose
- layer
- laminate
- fiber
- Prior art date
Links
Images
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
- B32B29/06—Layered products comprising a layer of paper or cardboard specially treated, e.g. surfaced, parchmentised
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/25—Cellulose
-
- 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
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/34—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising cellulose or derivatives thereof
-
- 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
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/52—Cellulose; Derivatives thereof
-
- 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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/10—Packing paper
-
- 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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/12—Coating on the layer surface on paper 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
- B32B2255/00—Coating on the layer surface
- B32B2255/20—Inorganic coating
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/20—Inorganic coating
- B32B2255/205—Metallic coating
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/28—Multiple coating on one surface
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
- B32B2307/7244—Oxygen barrier
-
- 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
- B32B2439/00—Containers; Receptacles
-
- 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
- B32B2439/00—Containers; Receptacles
- B32B2439/70—Food packaging
-
- 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
- B32B2439/00—Containers; Receptacles
- B32B2439/80—Medical packaging
-
- 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
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1303—Paper containing [e.g., paperboard, cardboard, fiberboard, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249962—Void-containing component has a continuous matrix of fibers only [e.g., porous paper, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
Definitions
- the present invention provides barriers to contents for various objects such as gas, odor, liquid, medicine, etc., thereby preventing the contents from deteriorating / deteriorating and preventing leakage to the outside.
- the present invention relates to a laminate suitable for packaging foods, toiletry products, pharmaceuticals, electronic members, electronic devices and the like, a manufacturing method thereof, and a molded container.
- Gas barrier material In order to prevent foods, pharmaceuticals, electronic parts, electronic devices, etc. from being deteriorated or deteriorated by oxygen or water vapor, etc., such as gas barrier films with reduced oxygen and water vapor permeability for their packaging Gas barrier material is used.
- this type of gas barrier material includes a copolymer of polyvinyl alcohol (PVA) and ethylene vinyl alcohol, a resin film such as polyvinylidene chloride resin, a film coated with these resins, a ceramic vapor-deposited film, etc. Are used, and laminates obtained by laminating them on various substrates have been studied.
- plastics are mostly finite resources derived from petroleum, have high combustion heat, and problems with environmental hormones have been pointed out. With recent environmental conservation thinking and the enforcement of the Containers and Packaging Recycling Law, it is necessary to switch from plastic materials to materials derived from renewable natural resources such as paper.
- barrier layers are provided on paper and used as packaging materials. For example, a method of sticking a paper substrate to a film having a barrier property or a film having a barrier layer, a method of providing a resin composition layer having a layered inorganic compound on a paper substrate, and a thermoplastic resin layer (see, for example, Patent Document 1) ), And a method of providing a barrier property by providing a resin layer on a paper base or a paper container and laminating an inorganic thin film layer by vapor deposition or CVD has been studied.
- the paper substrate surface has innumerable irregularities on the order of millimeters or nanometers. Therefore, in the method of imparting barrier properties by laminating an inorganic thin film layer on a paper base material, when an inorganic thin film layer having a glassy extremely brittle property is formed, it is formed on the unevenness of the paper base material surface. In particular, a problem has been pointed out that defects resulting from the phenomenon occur in the barrier layer and the barrier property is lowered.
- the present invention has been made in consideration of the background art as described above, and aims to provide a material that takes into consideration the overall environment by effectively using natural resources and interacting with paper fibers.
- the first invention of the present invention is a laminate in which a plurality of layers are laminated, wherein the substrate is made of paper and laminated on at least one side of the substrate, And a fiber layer containing fine fibers of cellulose having a fiber diameter of 1 nm or more and 10 ⁇ m or less.
- the laminated body according to the present invention is a layer made of a metal or a metal oxide in order to obtain a paper material having a thinner barrier material and using a more environmentally compatible material or having a higher barrier property.
- a barrier material having a quality equivalent to or higher than that of a conventional material can be obtained with fewer materials and processes.
- the second invention of the present invention is characterized in that the fiber layer contains fine fibers of cellulose having a fiber diameter of 1 nm or more and 30 nm or less.
- 3rd invention among this invention is a laminated body which concerns on 2nd invention, Comprising:
- the said fiber layer is 10 to 99 mass% of the fine fiber of the cellulose which has a fiber diameter of 1 nm or more and 30 nm or less. It is characterized by containing 1% by mass or more and 90% by mass or less of fine cellulose fibers having a fiber diameter of 100 nm or more and 10 ⁇ m or less.
- the fourth invention is a laminate according to the third invention, wherein the fine cellulose fibers have a crystallinity of 70% to 100%.
- the fifth invention is a laminate according to the fourth invention, wherein the cellulose fine fiber has a carboxyl group of 0.1 mmol / g or more and 3.5 mmol / g or less with respect to the mass of the cellulose.
- 6th invention is a laminated body which concerns on 5th invention, Comprising: The bending elastic modulus of the said fiber layer is 2 GPa or more and 30 GPa or less, It is characterized by the above-mentioned.
- 7th invention is a laminated body which concerns on 6th invention, Comprising: The arithmetic mean roughness (Ra) of the surface of the said fiber layer is 100 nm or more and 2000 nm or less, It is characterized by the above-mentioned.
- 8th invention is a laminated body which concerns on 7th invention, Comprising:
- the thickness of the said fiber layer is 100 nm or more and 2000 nm or less, It is characterized by the above-mentioned.
- the ninth invention is a laminate according to the eighth invention, wherein the oxygen permeability at a temperature of 30 ° C. and a humidity of 70% is 0.001 cm 3 / m 2 ⁇ atm ⁇ day or more and 10 cm 3 / day. It is within the range of m 2 ⁇ atm ⁇ day or less.
- a tenth invention is the laminate according to the eighth invention, the water vapor permeability at a humidity of 90% in the temperature of 40 ° C. is, 0.0000001g / m 2 / day or more 50g / m 2 / day It is characterized by being in the following range.
- the eleventh invention is a laminate according to the eighth invention, and the JAPAN TAPPI paper pulp test method No.
- the oil resistance evaluated according to 41 is a kit number of 10 or more.
- the twelfth invention is a laminate according to the second invention, wherein the fiber layer further contains an inorganic layered mineral.
- 13th invention is a laminated body which concerns on 2nd invention, Comprising:
- the said fiber layer contains further the composite material with the silica compound or its hydrolyzate shown by following General formula (1).
- X1, X2, X3, and X4 are the same or different and are any of a hydroxyl group, an alkoxy group, and an alkyl group.
- the fourteenth invention is a laminate according to the second invention, wherein the thickness of the mixed layer of the base material and the fiber layer is 10 nm or more and 2000 nm or less.
- the fifteenth invention is a laminate according to the second invention, wherein the fiber layer and a thin film layer made of a metal or metal oxide are further provided on at least one side of the substrate.
- the sixteenth invention is a laminate according to the second invention, and is characterized in that a resin layer or a sealant layer is further provided on at least one side of the laminate according to the fifth invention.
- the laminate according to the present invention described above is used for packaging food, toiletry products, pharmaceuticals, electronic parts, electronic devices, etc., which suppresses deterioration or alteration of the contents or prevents leakage to the outside. It becomes suitable as. That is, the seventeenth invention of the present invention is a molded container using the laminate according to the second invention.
- An eighteenth aspect of the present invention is a method for manufacturing a laminate, in which a coating liquid containing fine fibers of cellulose having a fiber diameter of 1 nm or more and 10 ⁇ m or less is applied to at least one surface of a paper substrate. And forming a coating film, and drying the coating film to form a laminate.
- the nineteenth invention is a method for producing a laminate according to the eighteenth invention, wherein the coating liquid has a transmittance of 0.1% to 70% at a solid content concentration of 1%.
- the laminate according to the present invention forms a layer containing fine cellulose fibers on a base material made of paper, it provides natural and environmentally friendly materials that effectively use natural resources. be able to. And since this laminated body is equipped with the fiber layer containing the fine fiber of the cellulose which has a fiber diameter of 1 nm or more and 10 micrometers or less on the at least single side
- the laminate according to the present invention has a layer made of a metal or metal oxide
- a laminate having higher barrier properties can be obtained.
- the layer containing fine fibers of cellulose contains ultrafine fibers, defects in the layer made of metal or metal oxide can be prevented.
- the structure contains fibers or particles having a diameter in a predetermined range as described above, the surface of the substrate can be modified efficiently, An excellent laminate can be obtained.
- the laminated body 100 of 1st Embodiment shown in FIG. 1 has the base material 1 which consists of paper at least, and the fiber layer 2 attached to the single side
- the base material ordinary high-quality paper, various coated papers, backing paper, impregnated paper, cardboard and paperboard, those formed by bonding them together with a resin film layer and a metal layer, and formed into a box shape
- the fiber layer 2 includes fine cellulose fibers, and the fine cellulose fibers have an average diameter in the range of 1 nm to 200 nm. These fiber diameters are measured by observing the shape using a device such as AFM or SEM, measuring the fiber width of any number of samples, and taking the average, or using a particle size distribution meter of the coating liquid. It is possible to measure from the particle size measurement result. In the present invention, measured values from the former observation are used.
- the average diameter of the fine cellulose fibers is in the range of 1 nm to 200 nm, the smoothness of the coated or cast film surface is improved at the nano level, and has a great effect on smoothing the paper substrate. Effect.
- the entanglement of fibers and the hydrogen bonding area become enormous, the interaction between the good barrier property and the fibers in the paper substrate is increased, and the adhesion is improved.
- the entanglement of these fibers can maintain the flexibility of a film made of fibers having a high elastic modulus and strong strength, which will be described later.
- the fiber layer 2 is characterized in that it contains 10% by mass or more of fine cellulose fibers having a fiber diameter of 1 nm to 30 nm.
- the fine fibers of cellulose are in this range, the effect of improving the smoothness of the film surface is great, and when a metal or metal oxide layer is further provided, a denser layer without pores or defects is formed, High barrier properties can be imparted.
- the fine fibers with a large diameter can efficiently smooth large irregularities on the paper substrate, and the fine fibers with a small diameter can further improve the smoothness at the nano level. Can do.
- the diameter and blending ratio of these fine fibers it is possible to form a dense film that efficiently fills the pores of the paper.
- cellulose fine fibers having a small fiber diameter of 1 nm or more and 30 nm or less are contained in an amount of 10 mass% or more and 99 mass% or less, and cellulose fine fibers having a large fiber diameter of 100 nm or more and 10 ⁇ m or less are 1 mass. % To 90% by mass is preferable. Within this range, it is possible to form a dense film that efficiently fills the pores of the paper.
- cellulose fine fibers having a small fiber diameter of 1 nm or more and 30 nm or less are contained in an amount of 25% by mass or more and 90% by mass or less, and cellulose fine fibers having a large fiber diameter of 100 nm or more and 10 ⁇ m or less are 10% by mass or more and 75%.
- content is less than or equal to mass%, smoothing of the paper can be achieved more efficiently, so that the thickness of the film can be reduced, the transmittance can be reduced to prevent the set-off, and the interference of the coating film. Stripes can be suppressed.
- fine cellulose fibers having a fiber diameter of 1 nm to 10 ⁇ m. If the cellulose fine fiber contained is within this range, large unevenness of the paper substrate can be smoothed efficiently, a dense film can be formed on the surface, and various barrier properties are excellent. In addition, when a metal or metal oxide layer is further provided, the effect of preventing defects is efficiently exhibited.
- the shape of a cellulose does not need to be fine fiber shape,
- the said effect can be acquired even if it has a particle shape.
- the cellulose shape is a particle shape
- the cellulose base material contains 1% by mass or more and 90% by mass or less of cellulose particles having a particle diameter of 100 nm or more and 10 ⁇ m or less, as in the case where the cellulose shape is a fine fiber. Can be smoothed efficiently.
- the fiber layer 2 containing fine cellulose fibers has a flexural modulus of 2 GPa to 30 GPa.
- the flexural modulus is in this range, the substrate surface can be efficiently modified. For example, smooth coating of the substrate surface can be achieved efficiently by coating with a thin film on a paper substrate with marked irregularities, and high barrier properties can be imparted.
- a metal or metal oxide layer is further added to a layer containing cellulose fine fibers, a denser layer without pores or defects is formed, which not only provides high barrier properties, but also provides high strength throughout the laminate. Therefore, physical strength when used as a packaging material or various materials can be imparted. More preferably, the flexural modulus is 2 GPa or more and 12 GPa or less.
- the flexural modulus is 2 GPa or more and 12 GPa or less, strength is imparted even with a thin film, and the paper substrate can be made thin, so that it is highly effective in terms of cost and environment. Further, even when a thick layer is provided, it is not too hard and does not affect post-processing. In particular, the range of 3 GPa to 6 GPa is more preferable because the strength is high and the handling is easy.
- the fine cellulose fibers contained in the fiber layer 2 are characterized by having a crystallinity of 70% to 100%.
- the crystallinity is within this range, not only high strength can be imparted, but also adsorption of various gases, chemicals, liquids, etc. can be suppressed in the crystal, and a high barrier property can be imparted.
- the barrier material which consists of a composite material with high affinity and adhesiveness can be provided using the interaction of the fine fiber of the cellulose contained in the paper base material 1 and the fiber layer 2.
- FIG. by including fine fibers having a large diameter and fine fibers having a small diameter, it is possible to form a dense film that efficiently fills the pores of the paper. Further, by having a hard structure and a soft structure, it is possible to provide a material having sufficient strength and barrier property even in a thin film.
- the fine cellulose fibers contained in the fiber layer 2 are characterized in that the amount of carboxyl groups is in the range of 0.1 mmol / g to 3.5 mmol / g with respect to the mass of cellulose.
- the amount of these carboxyl groups can be measured by the conductivity titration method of cellulose fibers.
- the carboxyl group amount is in the range of 0.1 mmol / g or more and 3.5 mmol / g or less, a laminate having a good oxygen barrier property, which is an important item particularly for the performance of the packaging material, can be obtained.
- the oxygen barrier property cannot be sufficiently exerted, and when it is 3.5 mmol / g or more, the oxygen barrier property under high humidity and the resistance to water are low. turn into.
- 0.2 g of dry weight conversion of the modified cellulose is taken into a beaker, and 80 ml of ion-exchanged water is added. Thereto was added 5 ml of 0.01 M sodium chloride aqueous solution, and 0.1 M hydrochloric acid was added while stirring to adjust the whole to pH 2.8.
- a 0.1 M sodium hydroxide aqueous solution was injected at 0.05 ml / 30 seconds using an automatic titrator (Toa DKK Co., Ltd., AUT-701), and the conductivity and pH value were measured every 30 seconds. Measurement was continued until. A titration amount of sodium hydroxide was determined from the obtained conductivity curve, and the carboxyl group content was calculated.
- the fiber layer 2 included in the laminate 100 may include an inorganic layered mineral.
- a kaolinite group, a smectite group, a mica group, or the like can be used, and examples thereof include montmorillonite, hectorite, and saponite. Of these, montmorillonite is preferred because of its high aspect ratio and area, stability of the coating liquid, and good coating properties.
- the inorganic layered mineral is preferably contained in the fiber layer 2 in an amount of 0% by mass to 70% by mass.
- the smoothness of the film surface is further improved by the inorganic layered mineral without lowering the affinity and adhesion between the cellulose fibers and the paper base material, and has a great effect on the smoothness of the paper base material.
- a metal or metal oxide thin film can be uniformly laminated, and adhesion between a paper substrate or a cellulose fiber layer and a metal or metal oxide thin film can be enhanced.
- swelling of cellulose can be suppressed by the inorganic layered mineral, and barrier properties such as gas, moisture, oil content, and odor can be enhanced. Furthermore, it can suppress that the intensity
- the fiber layer 2 containing fine cellulose fibers may contain a composite material with a silica compound represented by the following general formula (2) or a hydrolyzate thereof.
- a silica compound represented by the following general formula (2) X 1, X 2, X 3 and X 4 are the same or different and each represents a hydroxyl group, an alkoxy group or an alkyl group.
- the silica compound or a hydrolyzate thereof is preferably contained in the fiber layer 2 in an amount of 0% by mass to 70% by mass. Within this range, water resistance, adhesion to a substrate and cellulose swelling can be suppressed without impairing the flexibility of the film.
- the silica compound or a hydrolyzate thereof is effective in uniformly laminating a metal or metal oxide thin film, and improving the adhesion between the paper substrate or the cellulose fiber layer and the metal or metal oxide thin film.
- defects of metals or metal oxides can be filled to give high barrier properties, and in addition to water, chemicals, odors, etc., those having small molecules such as gas can also be barriered.
- this barrier property can be exhibited at a high level in the range of 30% by mass or more and 60% by mass or less.
- a composite material with a silica compound or a hydrolyzate thereof By including a composite material with a silica compound or a hydrolyzate thereof, not only water resistance to water and oxygen / water vapor barrier properties under high humidity are improved, but also a laminate shown in FIGS. 3 to 4 described later.
- the vapor deposition layer 3 made of metal or metal oxide is further provided as in 300 and 400, adhesion between the layers and deterioration of the vapor deposition film can be prevented.
- the fiber layer 2 containing fine cellulose fibers may further contain an additive for imparting functionality.
- an additive for imparting functionality for example, leveling agents, antifoaming agents, synthetic polymers, inorganic particles, organic particles, lubricants, ultraviolet absorbers, dyes, pigments, stabilizers, etc. are included, and these are included within the range that does not impair the barrier properties. It is.
- the surface of the fiber layer 2 of the laminate of the present invention is characterized in that its arithmetic average roughness (Ra) is 100 nm or more and 2000 nm or less.
- Ra arithmetic average roughness
- the smoothness is high, so that not only good characteristics are exhibited when performing subsequent printing / coating, but also the lamination described later.
- the deposition layer 3 made of metal or metal oxide is applied like the bodies 300 and 400, it is possible to prevent the barrier property from being lowered due to the presence of defects such as cracks and pinholes.
- the thickness of the fiber layer 2 of the laminate of the present invention is preferably 100 nm or more and 2000 nm or less.
- the thickness of the fiber layer 2 is preferably 100 nm or more and 2000 nm or less.
- the laminated body of this invention can improve the smoothness and barrier property of the base material 1 by apply
- the base material 1 can be modified by a relatively simple technique of coating and drying.
- a known method can be used as a method for applying a liquid containing fine cellulose fibers. Specific examples include a gravure coater, a dip coater, a reverse coater, a wire bar coater, and a die coater. By using the wet film formation method, a coating film having a surface shape that does not follow the unevenness of the paper substrate 1 can be formed.
- the solvent of the coating liquid is not particularly limited, but one or more kinds of various organic solvents including water and alcohol can be used.
- the laminated body of 2nd Embodiment of this invention is demonstrated.
- the laminated body 200 of this 2nd Embodiment apply
- the base material 1 The fiber layer 2 which consists of the base material component and the mixed layer 21 containing the fine fiber of a cellulose and the layer 22 which does not contain a base material component but contains the fine fiber of a cellulose is formed.
- size like cellulose nanofiber will be applied to the base material 1, and an unevenness
- the base material 1 does not contain a base material component on its surface.
- a layer 22 containing fine fibers can be formed on the paper substrate.
- the thickness of the mixed layer 21 is preferably in the range of 10 nm to 2000 nm.
- the thickness of the mixed layer 21 is in the above range, not only the paper mesh completely penetrates into the paper mesh but also a continuous film formed on the surface of the paper substrate 1 and further follows the unevenness. Instead, a smooth surface can be formed efficiently. Therefore, it is possible to obtain a laminate excellent in various barrier properties such as gas, odor, liquid, medicine and solid.
- the vapor deposition layer 3 when the vapor deposition layer 3 is formed on the fiber layer 2, the vapor deposition layer 3 is easily broken, and it is desired that the thin film exhibits a sufficient function.
- this laminate 200 since this laminate 200 has a smooth surface, unevenness and defects of the vapor deposition layer 3 due to the unevenness of the substrate 1 can be suppressed.
- the affinity and adhesiveness of the fiber layer 2 to the base material 1 can be improved by having the mixed layer 21 having a thickness in the range of 10 nm to 2000 nm.
- the above-mentioned coating liquid in the case of applying to the paper substrate 1 is more preferably in the range of 0.1% or more and 70% or less in terms of transmittance when diluted to 1% solid content concentration.
- the transparency of the liquid is within this range, the opacity of the substrate 1 after application can be increased, and the effect of preventing show-through is great, and reflection and interference fringes can be suppressed while increasing the gloss of the coated surface. it can.
- a liquid containing various cellulose fine fibers is diluted with water or a coating solution so as to have a solid concentration of 1%.
- This liquid is put into a 1 cm square quartz glass cell, and the transmittance at a wavelength of 660 nm measured with a spectrophotometer or the like is read to obtain the transmittance. If the transmittance at a wavelength of 660 nm can be measured, the type of the device is not limited.
- FIG. 3 shows a laminate 300 according to the third embodiment
- FIG. 4 shows a laminate 400 according to the fourth embodiment.
- These laminates 300 and 400 differ from the laminate 100 to the laminate 200 in that a vapor deposition layer 3 is further provided on the fiber layer 2.
- the vapor deposition layer 3 is made of metal or metal oxide, and various metals or metal oxides can be laminated by vapor deposition coating, immersion, lamination, or the like. There are no particular limitations on the type of metal or metal oxide, but aluminum, aluminum oxide, silica oxide, or the like is preferred when used as a laminate according to the present invention or a barrier material using the laminate.
- the vapor deposition layer 3 when a layer of aluminum, aluminum oxide, silica oxide, or the like is provided as the vapor deposition layer 3, it can be formed by a vapor deposition process such as plasma or vacuum vapor deposition. Functions such as sex can be imparted.
- the base material 1 such as paper is inherently uneven, and the film is formed by the above-described process, for example, a uniform continuous thin film cannot be formed due to the escape of gas such as moisture contained in the paper base material.
- the surface of the base material can be efficiently modified by imparting smoothness and gas barrier properties. Can be solved.
- plasma treatment or the like may be performed to remove moisture, dust, or the like on the surface of the functional layer and promote smoothing and activation of the surface.
- plasma treatment or the like may be performed to remove moisture, dust, or the like on the surface of the functional layer and promote smoothing and activation of the surface.
- the fiber layer 2 may be further laminated on the configuration of the third to fourth embodiments as in the laminated body 500 of the fifth embodiment shown in FIG. it can.
- the laminated body of the present invention has an anchor / primer layer for further laminating a resin layer or a sealant layer 4 and improving the strength between the layers as in the laminated body 600 of the sixth embodiment shown in FIG.
- An antifouling layer, a printed layer, an antistatic layer, etc. can be laminated.
- each layer to be laminated may be laminated by melt extrusion, may be laminated using an adhesive, or may be laminated by vapor deposition or the like.
- a resin layer can be provided with a barrier to a highly antifouling and penetrating liquid, and a sealant layer can be prevented from retaining its shape and leaking contents during molding.
- the material of each layer is not particularly limited, and known materials such as polyolefin-based, epoxy-based, urethane-based, isocyanate-based, polyester-based, plant-derived materials (bioplastics) can be used.
- the laminated body which concerns on this invention mentioned above can be used for various molded containers, such as a bottle shape, a cylinder shape, and a box shape, besides being used for various films and sheets.
- the pH started to decrease from the start of dropping, but the pH was kept at 10 using a 0.5N aqueous sodium hydroxide solution. Two hours later, when 0.5N sodium hydroxide reached 2.5 mmol / g, 30 g of ethanol was added to stop the reaction. 0.5N hydrochloric acid was added to the reaction system to lower the pH to 2. The oxidized pulp was filtered, washed repeatedly with 0.01N hydrochloric acid or water, and then subjected to conductivity titration with 0.1N sodium hydroxide using an automatic titrator (Toa DKK, AUT-701) from which the oxidized pulp was obtained. However, the carboxyl group amount was calculated to be 1.3 mmol / g.
- the obtained oxidized pulp was diluted with water to obtain a 1% dispersion having a pH of 8 using an aqueous sodium hydroxide solution.
- the mixture was stirred for 2 days with a high-speed stirrer to obtain a dispersion containing fine cellulose fibers.
- the obtained oxidized pulp was diluted with water to obtain a 1% dispersion having a pH of 9 using an aqueous sodium hydroxide solution.
- the dispersion was treated with an ultrasonic homogenizer for 5 minutes to obtain an aqueous solution containing 1% cellulose fine fibers.
- the pH started to decrease from the start of dropping, but the pH was kept at 10 using a 0.5N aqueous sodium hydroxide solution. After 4 hours, 30 g of ethanol was added to stop the reaction. 0.5N hydrochloric acid was added to the reaction system to lower the pH to 2. The oxidized pulp was filtered and washed repeatedly with 0.01N hydrochloric acid or water to obtain oxidized pulp. Conductivity titration with 0.1N sodium hydroxide was performed using an automatic titrator (Toa DKK, AUT-701), and the amount of carboxyl groups was calculated to be 2.4 mmol / g.
- the obtained oxidized pulp was diluted with water to obtain a 1% dispersion having a pH of 6 using an aqueous sodium hydroxide solution.
- the dispersion was treated with an ultrasonic homogenizer for 5 minutes to obtain an aqueous solution containing 1% cellulose fine fibers.
- Table 1 shows the results of Production Example Evaluation 1-3.
- Example 1-7 Each dispersion of Production Example 1-7 was applied to the surface of ivory paper having a basis weight of 270 g / m 2 with a bar coater so as to have a film thickness of 500 nm, and dried in an oven at 120 ° C. for 3 minutes. 7 was produced.
- Example 8-14 Each dispersion of Production Example 1-7 was applied to the surface of a coated paper having a basis weight of 75 g / m 2 with a bar coater so as to have a film thickness of 200 nm, and dried in an oven at 120 ° C. for 3 minutes.
- Example 8-14 A laminate was prepared.
- Example 15-21 A silicon oxide film was further laminated at 50 nm on the coated surface of the laminate of Example 1-7 by vacuum deposition to obtain laminates of Examples 15 to 21.
- Examples 22-24 Using a urethane adhesive on the coated or vapor-deposited surfaces of the laminates of Example 3, Example 4, and Example 18, a polyethylene film having a thickness of 70 ⁇ m was dry-laminated to obtain laminates of Examples 22 to 24. It was.
- Tetraethoxysilane was added at a concentration of 1% to a mixed solution of methanol and 0.02N hydrochloric acid aqueous solution at a ratio of 5: 5 and hydrolyzed for 2 hours, and then mixed with the dispersion of Production Example 2 at a ratio of 1: 1.
- the laminate of Example 18 was further applied to the vapor deposition surface of 200 nm and dried in an oven at 120 ° C. for 3 minutes to obtain the laminate of Example 25.
- a 70 ⁇ m-thick polyethylene film was further dry laminated on the coated surface of the laminate of Example 25 using a urethane-based adhesive to obtain the laminate of Example 26.
- Example 27 The dispersion of Production Example 8 was applied to the surface of ivory paper having a basis weight of 270 g / m 2 with a bar coater so as to have a film thickness of 500 nm, and dried in an oven at 120 ° C. for 3 minutes to obtain the laminate of Example 27.
- Example 28 The dispersion of Production Example 8 was applied to the surface of a coated paper having a basis weight of 75 g / m 2 with a bar coater so as to have a film thickness of 200 nm, and dried in a 120 ° C. oven for 3 minutes to produce the laminate of Example 28. did.
- Comparative Example 1 Coated paper having a basis weight of 75 g / m 2 in which the fiber layer 2 was not formed was used as Comparative Example 1.
- Comparative Example 2 instead of the fiber layer 2, commercially available polyvinyl alcohol (molecular weight: 100,000) was dissolved in water at a concentration of 1% and applied onto coated paper having a basis weight of 75 g / m 2 in the same manner as in Example 8-14. A laminate was obtained.
- these films In addition to being able to be discarded as paper, these films have previously been cut off by oxygen, in addition to oxygen gas by coloring, printing, bonding, and metal vapor deposition, and have the same performance with fewer steps. be able to. Moreover, since metal foil etc. are not bonded together, it is also possible to pass through a metal detector. In addition, leakage of gas and smell similar to oxygen can be prevented.
- these films which have previously blocked light by coloring, printing, laminating, and metal vapor deposition, have the same process with fewer steps. Can do. Moreover, since metal foil etc. are not bonded together, it is also possible to pass through a metal detector. In addition, leakage of gas and smell of the same size as water vapor or a permeation mechanism can be prevented. Furthermore, not only can water vapor enter from the outside, but also the content can be prevented from drying, and the content of water can be prevented from being altered and lost due to moisture.
- Table 2 shows the results of Evaluation 1-3 of Examples and Comparative Examples.
- the laminate of the present invention is excellent in oxygen, water vapor, and oil barrier properties, and a fiber layer 2 containing fine cellulose fibers is formed on a base material 1 made of paper.
- a barrier material or a barrier container having high affinity and adhesion with a paper base material and excellent in various barrier properties such as gas, odor, liquid, and medicine can be obtained.
- a laminate having higher barrier properties can be obtained by having a layer made of a metal or metal oxide.
- defects in a layer made of metal or metal oxide can be prevented by including ultrafine fibers in a layer containing fine cellulose fibers.
- the surface of the substrate can be modified efficiently, and an excellent laminate can be obtained. It was confirmed that it was possible.
Landscapes
- Laminated Bodies (AREA)
- Wrappers (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
Description
従来、この種のガスバリア材には、ポリビニルアルコール(PVA)とエチレンビニルアルコールとの共重合体、ポリ塩化ビニリデン系樹脂等の樹脂フィルム、あるいはこれらの樹脂がコートされたフィルムや、セラミック蒸着フィルム等が使用され、それらを様々な基材に積層させた積層体が検討されている。
しかし、これらの手法は、充分なバリア性を付与できるほどではないものや、接触・あるいは貼り合わせただけなので、紙繊維との相互作用が少ない手法である。また、コーティングや含浸などにより目止めをする手法であっても、紙表面のミリオーダーあるいはナノオーダーでの凹凸に追従した層を形成してしまい、充分な機能を発揮することができず、そのため、相当の厚みを有する層を形成して紙の凹凸の影響を除去するしかなく、単なる目止め、穴埋め材に過ぎなかった。
ここで、本発明に係る積層体は、バリア材全体の厚みを薄く、より環境適合した材料を用いたり、あるいは、より高いバリア性を有する紙材料を得るために金属あるいは金属酸化物よりなる層を紙からなる基材に形成させたりすれば、少ない材料と工程で従来と同等あるいはそれ以上の品質を有するバリア材料となりうる。
また、本発明のうち第3の発明は、第2の発明に係る積層体であって、前記繊維層は、1nm以上30nm以下の繊維径を有するセルロースの微細繊維を10質量%以上99質量%以下含有し、かつ、100nm以上10μm以下の繊維径を有するセルロースの微細繊維を1質量%以上90質量%以下含有することを特徴とする。
また、第5の発明は、第4の発明に係る積層体であって、前記セルロースの微細繊維がセルロース質量に対してカルボキシル基を0.1mmol/g以上3.5mmol/g以下有することを特徴とする。
また、第7の発明は、第6の発明に係る積層体であって、前記繊維層の表面の算術平均粗さ(Ra)が、100nm以上2000nm以下であることを特徴とする。
また、第9の発明は、第8の発明に係る積層体であって、温度が30℃で湿度が70%における酸素透過度が、0.001cm3/m2・atm・day以上10cm3/m2・atm・day以下の範囲内であることを特徴とする。
また、第11の発明は、第8の発明に係る積層体であって、JAPAN TAPPI紙パルプ試験方法No.41に準じて評価した耐油性が、キットナンバー10以上であることを特徴とする。
また、第13の発明は、第2の発明に係る積層体であって、前記繊維層が、更に下記一般式(1)に示されるシリカ化合物またはその加水分解物との複合材料を含むことを特徴とする。但し、以下の一般式(1)中、X1、X2、X3、X4は、同一或いは相異なって、水酸基、アルコキシ基、アルキル基のいずれかである。
また、第15の発明は、第2の発明に係る積層体であって、前記基材の少なくとも片面側に、前記繊維層と、さらに金属又は金属酸化物よりなる薄膜層とを有することを特徴とする。
また、第16の発明は、第2の発明に係る積層体であって、第5の発明に係る積層体の少なくとも片面側に、さらに樹脂層又はシーラント層を設けたことを特徴とする。
また、第19の発明は、第18の発明に係る積層体の製造方法であって、前記塗液が、固形分濃度1%で0.1%以上70%以下の透過率であることを特徴とする。
そして、この積層体は、紙からなる基材の少なくとも片面に、1nm以上10μm以下の繊維径を有するセルロースの微細繊維を含む繊維層を備えるので、セルロースの微細繊維の繊維径をこの範囲に規定すれば、紙繊維との相互作用により、優れた強度を有するとともに、紙基材との親和性・密着にも優れ、薄膜でも充分にガス・臭気・液体・薬剤など各種バリア性を付与し得るバリア材料となりうる。よって、これを用いた成形容器によれば、上記課題を同様に解決することができる。
また、セルロースの微細繊維を含む層に微細繊維の中でも、上述したような所定の範囲の径をもつ繊維あるいは粒子を含む構成とすれば、効率よく基材の表面を改質することができ、優れた積層体を得ることができる。
図1に示す第1実施形態の積層体100は、少なくとも紙からなる基材1と、この基材1の片面に付設された繊維層2とを有して構成されている。
基材1としては、通常の上質紙、各種コート紙、裏打ち紙、含浸紙、ボール紙や板紙、それらと樹脂フィルム層や金属層などを貼合せ製函してなるものや、箱型に成形されたパルプモールドなどを用いることができるが、これらに限定されるものではない。
ここで、上記セルロースの微細繊維は、その平均径が、1nm以上200nm以下の範囲にあると、ナノレベルで塗布あるいはキャスト膜表面の平滑性が向上し、紙基材の平滑化に大きな効果を及ぼす。また、繊維の絡み合いや水素結合面積が膨大になることから、良好なバリア性と紙基材中の繊維との相互作用も増大し、密着性も向上する。また、これらの繊維の絡み合いは、後述する高い弾性率と強い強度を持つ繊維からなる膜のしなやかさを保つことができる。
具体的には、1nm以上30nm以下の小さい繊維径を有するセルロースの微細繊維が10質量%以上99質量%以下含まれ、かつ、100nm以上10μm以下の大きい繊維径を有するセルロースの微細繊維が1質量%以上90質量%以下含まれることが好ましい。この範囲であれば、紙の細孔に効率よく充填した緻密な膜を形成させることができる。
曲げ弾性率がこの範囲にあると、基材表面の改質が効率よく行える。例えば凹凸の著しい紙基材の上に薄膜での塗工で、基材表面の平滑化が効率よく達成でき、高いバリア性を付与することができる。また、セルロースの微細繊維を含む層に更に金属や酸化金属層を付与したときに、より緻密で孔や欠陥のない層が形成され、高いバリア性を付与できるだけでなく、積層体全体で高い強度を付与できるため、包装材料や各種材料として用いる際の物理的強度を付与することができる。曲げ弾性率が、2GPa以上12GPa以下であれば、より好ましい。曲げ弾性率が、2GPa以上12GPa以下であれば、薄い膜であっても強度が付与され、紙基材を薄くすることもできるため、コスト面、環境面においても効果が高い。また、厚い層を設けた際にも、硬すぎることなく後加工にも影響を与えない。特に、3GPa以上6GPa以下の範囲にあると、強度も高く、取り扱い易いためより好ましい。
また、紙の基材1と、繊維層2に含まれるセルロースの微細繊維の相互作用を利用し、親和性・密着性も高い複合材料からなるバリア材を提供することができる。また、径の大きな微細繊維と、径の小さな微細繊維を含むことにより、紙の細孔に効率よく充填した緻密な膜を形成することができる。また硬い構造と柔らかい構造を有することで、薄膜でも充分な強度とバリア性を有する材料を提供することができる。
カルボキシル基量が0.1mmol/g以上3.5mmol/g以下の範囲にあると、特に包装材料の性能として重要な項目である酸素バリア性が良好な積層体が得られる。カルボキシル基は0.1mmol/g未満であると、酸素バリア性が充分に発揮できず、また、3.5mmol/g以上であると高湿度下での酸素バリア性や、水への耐性が低くなってしまう。
さらに、セルロースの微細繊維を含む繊維層2には、以下の一般式(2)に示されるシリカ化合物またはその加水分解物との複合材料を含んでもよい。下記一般式(2)中、X1、X2、X3、X4は、同一或いは相異なって、水酸基、アルコキシ基、アルキル基のいずれかであることを示す。シリカ化合物またはその加水分解物は、繊維層2に0質量%以上70質量%以下含まれることが好ましい。この範囲であると膜のしなやかさを損なうことなく、耐水性や基材への密着性およびセルロースの膨潤を抑えることができる。更にシリカ化合物あるいはその加水分解物は金属あるいは酸化金属の薄膜を均一に積層することや、紙基材やセルロース繊維層と金属あるいは酸化金属の薄膜との密着を高めることにも効果がある。特に金属あるいは酸化金属の欠陥を埋め、高いバリア性を付与し、水や薬剤、臭気などに加え、ガスなどの小さな分子を持つものをバリアすることもできる。さらに30質量%以上60質量%以下の範囲であると、このバリア性を高いレベルで発揮することができる。
セルロースの微細繊維を含む液の塗布の手法としては、公知の方法を用いることができる。具体的には、グラビアコーター、ディップコーター、リバースコーター、ワイヤーバーコーター、ダイコーター等である。ウェット成膜方法を用いることにより、紙の基材1の凹凸に追従しない表面形状の塗膜を形成することができる。また、塗液の溶媒についても特に限定されるものではないが、水・アルコールをはじめとした各種有機溶剤を1種類または複数種用いることができる。
図2に示すように、この第2実施形態の積層体200は、紙からなる基材1上に、前述のセルロースの微細繊維を含む液を塗布し、これを乾燥させることで、基材1の基材成分とセルロースの微細繊維を含む混合層21と基材成分を含まずセルロースの微細繊維を含む層22とからなる繊維層2を形成している。
透過率の測定方法としては、各種セルロースの微細繊維を含む液を固形分濃度1%となるように水または塗液溶剤で希釈する。この液を1cm角の石英ガラスセルに入れ、分光光度計などで測定した660nmの波長の透過率を読み取り、透過率とする。660nmの波長の透過率が測定できれば、装置の種類などは問わない。
図3に第3実施形態の積層体300を、図4に第4実施形態の積層体400を示す。これら積層体300、400は、上記積層体100ないし積層体200に対し、繊維層2上に、蒸着層3を更に備える点が異なっている。
この蒸着層3は、金属あるいは酸化金属からなっており、各種金属あるいは酸化金属を蒸着コーティング、浸漬、ラミネーションなどにより積層させることができる。金属や酸化金属の種類は特に限定しないが、本発明に係る積層体あるいは、これを用いたバリア材などとして利用する場合には、アルミニウム、酸化アルミニウム、酸化シリカなどが好ましい。
なお、本発明は、上述した実施形態に限定されるものではなく、当業者の知識に基づいて設計の変更等の変形を加えることも可能であり、そのような変形が加えられた実施形態も本発明の範囲に含まれるものである。
さらに、本発明の積層体は、図6に示す第6実施形態の積層体600のように、更に樹脂層又はシーラント層4を積層したり、各層間の強度を向上させるためのアンカー・プライマー層、防汚染層、印刷層、帯電防止層等を積層したりすることができる。この場合、積層する各層は、溶融押出により積層してもよく、接着剤を用いて積層しても、また、蒸着などによって積層させることもできる。
なお、上述した本発明に係る積層体は、各種フィルムやシートに用いることができるほか、ボトル状、筒状、箱状などの各種成形容器に用いることができる。
[製造例1]
針葉樹クラフトパルプ30gを水600gに浸漬し、ミキサーにて分散させた。分散後のパルプスラリーにあらかじめ水200gに溶解させたTEMPOを0.3g、NaBrを3g添加し、更に水で希釈し全体を1400mLとした。系内を20℃に保ち、セルロース1gに対し10mmolになるよう次亜塩素酸ナトリウム水溶液を計りとり滴下した。
針葉樹クラフトパルプ30gを水600gに浸漬し、ミキサーにて分散させた。分散後のパルプスラリーにあらかじめ水200gに溶解させたTEMPOを0.3g、NaBrを3g添加し、更に水で希釈し全体を1400mLとした。系内を20℃に保ち、セルロース1gに対し10mmolになるよう次亜塩素酸ナトリウム水溶液を計りとり滴下した。
針葉樹クラフトパルプ30gを水600gに浸漬し、ミキサーにて分散させた。分散後のパルプスラリーにあらかじめ水200gに溶解させたTEMPOを0.3g、NaBrを3g添加し、更に水で希釈し全体を1400mLとした。系内を20℃に保ち、セルロース1gに対し10mmolになるよう次亜塩素酸ナトリウム水溶液を計りとり滴下した。
上記製造例2の1%セルロースの微細繊維を含む水溶液に、水に分散させた固形分4%のモンモリロナイトをセルロースとモンモリロナイトの質量比が1:1となるように混ぜ合わせた。更に超音波ホモジナイザーで1分間分散させた。
[製造例5,6,7,8]
製造例1と製造例2のセルロースの微細繊維を含む水溶液をそれぞれ質量比が1:9、5:5、7.5:2.5、9.5:0.5となるように混ぜ合わせ、製造例5,6,7,8の水溶液を得た。
各分散液を1%水溶液とし、1cm角の石英ガラスに入れ、分光光度計にて660nmの透過率を測定した。
各分散液を0.01%濃度まで希釈し、マイカ上に塗布しAFMにて繊維形態を観察した。1本ずつ存在している任意の繊維10点の高さ平均を求るまたは、白金でコートした後SEM観察を行い、10点の幅の平均を求め、平均の繊維径とした。
製造例1-7の分散液をガラス基材上にキャストし、80℃で1晩乾燥させ、2mm厚のシートを得た。このシートを幅25mm長さ40mmの短冊状に切り抜き、JIS-K7171に従いシートの3点曲げを行い、10mm/minにおける曲げ弾性率を求めた。
製造例1-7の各分散液を坪量270g/m2のアイボリー紙の表面にバーコーターにて膜厚500nmとなるように塗布し、120℃のオーブンで3分間乾燥し、実施例1-7の積層体を作製した。
[実施例8-14]
製造例1-7の各分散液を坪量75g/m2のコート紙の表面にバーコーターにて膜厚200nmとなるように塗布し、120℃オーブンで3分間乾燥し、実施例8-14の積層体を作製した。
実施例1-7の積層体の塗工面に更に真空蒸着により酸化ケイ素の皮膜を50nmで積層し、実施例15から21の積層体を得た。
[実施例22-24]
実施例3、実施例4および実施例18の積層体の塗工面あるいは蒸着面に、さらにウレタン系接着剤を用い、厚み70μmのポリエチレンフィルムをドライラミネートし、実施例22から24の積層体を得た。
メタノールと0.02N-塩酸水溶液を5:5で混ぜ合わせた混合溶液にテトラエトキシシランを1%濃度で加え2時間加水分解させた水溶液を、製造例2の分散液と1:1で混ぜ合わせ、実施例18の積層体の蒸着面に更に200nmとなるように塗布し、120℃のオーブンで3分間乾燥させ、実施例25の積層体を得た。
[実施例26]
実施例25の積層体の塗工面に、さらにウレタン系接着剤を用いて厚み70μmのポリエチレンフィルムをドライラミネートし、実施例26の積層体を得た。
製造例8の分散液を坪量270g/m2のアイボリー紙の表面にバーコーターにて膜厚500nmとなるように塗布し、120℃のオーブンで3分間乾燥し、実施例27の積層体を作製した。
[実施例28]
製造例8の分散液を坪量75g/m2のコート紙の表面にバーコーターにて膜厚200nmとなるように塗布し、120℃オーブンで3分間乾燥し、実施例28の積層体を作製した。
繊維層2を形成させていない坪量75g/m2のコート紙を比較例1として用いた。
[比較例2]
繊維層2の代わりに、市販のポリビニルアルコール(分子量10万)を1%濃度で水に溶解させ、実施例8-14と同様に坪量75g/m2のコート紙上に塗布し、比較例2の積層体を得た。
繊維層2の代わりに、市販のポリビニルアルコール(分子量10万)を1%濃度で水に溶解させ、実施例1-7と同様に坪量270g/m2のアイボリー紙上に塗布し、比較例3の積層体を得た。
[比較例4]
比較例3の積層体に更に真空蒸着により酸化ケイ素の皮膜を50nmで積層し、比較例4の積層体を得た。
各積層体について、モコン法を用いて、酸素透過度(単位:ml/m2・day・atm)を30℃-70%RHの条件で測定した。結果を表1に示す。
同表に示す結果から判るように、酸素透過度が0.001から10(ml/m2・day・atm)の範囲内にあれば、酸素を嫌う多くの内容物を保護するのに十分な機能があるといえ、紙基材とセルロース繊維という天然物からバリア性フィルム並みの性能を示すものが得られる。これらは、紙としての廃棄が可能なだけでなく、これまでフィルムでは着色や印刷、貼り合わせ、金属蒸着により酸素ガスの他、光を遮断していたものが、工程も少なく同等の性能を得ることができる。また、金属箔などの貼り合わせを行なっていないため、金属探知器を通すことも可能となる。また、酸素と同じような大きさのガスやにおいの漏れも防止することができる。
実施例8から14の積層体の塗工面と、比較例1および2のコート面に、JAPAN TAPPI紙パルプ試験方法No.41に従い、紙のはつ油度を評価した(キット法)。その結果、比較例1および比較例2はキットナンバー1が浸透してしまったが、実施例8および10の積層体はキットナンバー10まで浸透せず、また実施例9、11から14についてはキットナンバー12まで浸透しなかった。よって、JAPAN TAPPI No.41に準じて評価した耐油性が、キットナンバー10以上であれば浸透しないことが判った。
実施例11、12,22,23,24,26および比較例1,2について、水蒸気透過度を40℃90%RHの条件下、カップ法にて測定を行った。結果を表2に示す。
温度が40℃で湿度が90%における水蒸気透過度が0.0000001g/m2/day以上50g/m2/day以下の範囲にあれば、水蒸気を嫌う多くの内容物を保護するのに充分な機能があるといえ、紙基材とセルロース繊維という天然物からバリア性フィルム並みの性能を示すものが得られる。これらは、紙としての廃棄が可能なだけでなく、これまでフィルムでは着色や印刷、貼り合わせ、金属蒸着により水蒸気の他、光を遮断していたものが、工程も少なく同等の性能を得ることができる。また、金属箔などの貼り合わせを行なっていないため、金属探知器を通すことも可能となる。また、水蒸気と同じような大きさあるいは透過機構のガスやにおいの漏れを防止することもできる。さらに、外からの水蒸気の進入を防ぐだけでなく、内容物の乾燥を防いだり、水分が飛んで内容物の変質・目減りを防止することもできる。
更に、金属あるいは金属酸化物よりなる層を有することにより、より高いバリア性に優れた積層体を得ることができることが確認された。更に、セルロースの微細繊維を含む層に超微細繊維を含むことにより、金属あるいは金属酸化物よりなる層の欠陥を防ぐことができることが確認された。また、セルロースの微細繊維を含む層に微細繊維の中でもある範囲の径をもつ繊維あるいは粒子を含むことにより、効率よく基材の表面を改質することができ、優れた積層体を得ることができることが確認された。
2・・・繊維層
21・・・基材成分とセルロースの微細繊維を含む混合層
22・・・基材成分を含まずセルロースの微細繊維を含む層
3・・・蒸着層
4・・・樹脂層又はシーラント層
100、200、300、400、500、600・・・積層体
Claims (19)
- 複数の層が積層されてなる積層体であって、
紙からなる基材と、該基材の少なくとも片面に積層されて、1nm以上10μm以下の繊維径を有するセルロースの微細繊維を含む繊維層とを備えることを特徴とする積層体。 - 前記繊維層は、1nm以上30nm以下の繊維径を有するセルロースの微細繊維を含有することを特徴とする請求項1に記載の積層体。
- 前記繊維層は、1nm以上30nm以下の繊維径を有するセルロースの微細繊維を10質量%以上99質量%以下含有し、かつ、100nm以上10μm以下の繊維径を有するセルロースの微細繊維を1質量%以上90質量%以下含有することを特徴とする請求項2に記載の積層体。
- 前記セルロースの微細繊維は、70%以上100%以下の結晶性を有することを特徴とする請求項3に記載の積層体。
- 前記セルロースの微細繊維は、セルロース質量に対してカルボキシル基を0.1mmol/g以上3.5mmol/g以下有することを特徴とする請求項4に記載の積層体。
- 前記繊維層の曲げ弾性率は、2GPa以上30GPa以下であることを特徴とする請求項5に記載の積層体。
- 前記繊維層の表面の算術平均粗さ(Ra)は、100nm以上2000nm以下であることを特徴とする請求項6に記載の積層体。
- 前記繊維層の厚みは、100nm以上2000nm以下であることを特徴とする請求項7に記載の積層体。
- 温度が30℃で湿度が70%における酸素透過度が、0.001cm3/m2・atm・day以上10cm3/m2・atm・day以下の範囲内であることを特徴とする請求項8に記載の積層体。
- 温度が40℃で湿度が90%における水蒸気透過度が、0.0000001g/m2/day以上50g/m2/day以下の範囲にあることを特徴とする請求項8に記載の積層体。
- JAPAN TAPPI紙パルプ試験方法No.41に準じて評価した耐油性が、キットナンバー10以上であることを特徴とする請求項8に記載の積層体。
- 前記繊維層は、更に無機層状鉱物を含むことを特徴とする請求項2に記載の積層体。
- 前記基材と前記繊維層の混合層の厚みは、10nm以上2000nm以下であることを特徴とする請求項2に記載の積層体。
- 前記基材の少なくとも片面側に、前記繊維層と、さらに金属又は金属酸化物よりなる薄膜層とを有することを特徴とする請求項2に記載の積層体。
- 請求項2に記載の積層体の少なくとも片面側に、さらに樹脂層又はシーラント層を設けたことを特徴とする積層体。
- 請求項2に記載の積層体を用いたことを特徴とする成形容器。
- 紙からなる基材の少なくとも片面に、1nm以上10μm以下の繊維径を有するセルロースの微細繊維を含む塗液を塗布して塗膜を形成する工程と、前記塗膜を乾燥させて積層体を形成する工程とを含むことを特徴とする積層体の製造方法。
- 前記塗液が、固形分濃度1%で0.1%以上70%以下の透過率であることを特徴とする請求項18に記載の積層体の製造方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11759327.7A EP2551105B1 (en) | 2010-03-24 | 2011-03-18 | Laminated body, method for producing same, and molding container |
KR1020127026348A KR101816331B1 (ko) | 2010-03-24 | 2011-03-18 | 적층체 및 그의 제조 방법 및 성형 용기 |
JP2012506981A JP5772815B2 (ja) | 2010-03-24 | 2011-03-18 | 積層体およびその製造方法ならびに成形容器 |
US13/636,443 US9994005B2 (en) | 2010-03-24 | 2011-03-18 | Laminated body, method for producing the same, and molded container |
CN201180015232.9A CN102834259B (zh) | 2010-03-24 | 2011-03-18 | 层叠体及其制造方法和成型容器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010-068750 | 2010-03-24 | ||
JP2010068750 | 2010-03-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011118521A1 true WO2011118521A1 (ja) | 2011-09-29 |
Family
ID=44673076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2011/056542 WO2011118521A1 (ja) | 2010-03-24 | 2011-03-18 | 積層体およびその製造方法ならびに成形容器 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9994005B2 (ja) |
EP (1) | EP2551105B1 (ja) |
JP (1) | JP5772815B2 (ja) |
KR (1) | KR101816331B1 (ja) |
CN (1) | CN102834259B (ja) |
WO (1) | WO2011118521A1 (ja) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013121539A1 (ja) * | 2012-02-15 | 2013-08-22 | 北越紀州製紙株式会社 | 多孔質体及びその製造方法 |
JP2015024539A (ja) * | 2013-07-25 | 2015-02-05 | 凸版印刷株式会社 | 積層体およびその製造方法ならびに成形容器 |
JP2015024540A (ja) * | 2013-07-25 | 2015-02-05 | 凸版印刷株式会社 | 積層体およびその製造方法 |
JP2015024538A (ja) * | 2013-07-25 | 2015-02-05 | 凸版印刷株式会社 | シート材及びバリア性包装容器 |
JP2015024537A (ja) * | 2013-07-25 | 2015-02-05 | 凸版印刷株式会社 | 防湿フィルム及び包装材料用防湿フィルム |
JP2015120338A (ja) * | 2013-11-20 | 2015-07-02 | 大王製紙株式会社 | ガスバリア性シートの製造方法及びガスバリア性シート |
JP2016132241A (ja) * | 2015-01-22 | 2016-07-25 | 大王製紙株式会社 | 複合紙の製造方法及び複合紙 |
JP2016159576A (ja) * | 2015-03-04 | 2016-09-05 | 凸版印刷株式会社 | ガスバリア積層体及びその製造方法 |
JP2016222877A (ja) * | 2015-06-03 | 2016-12-28 | 大王製紙株式会社 | ガスバリア層形成用塗工液及びその製造方法、並びにガスバリア性シート及びその製造方法 |
JP2016222878A (ja) * | 2015-06-03 | 2016-12-28 | 大王製紙株式会社 | ガスバリア層形成用塗工液及びその製造方法、並びにガスバリア性シート及びその製造方法 |
JPWO2015011899A1 (ja) * | 2013-07-25 | 2017-03-02 | 凸版印刷株式会社 | シート材及びそれを用いたバリア性包装容器並びにシート材の製造方法 |
WO2017179729A1 (ja) * | 2016-04-14 | 2017-10-19 | 凸版印刷株式会社 | 紙カップ、酸性食品用紙カップ |
JP2018069676A (ja) * | 2016-11-02 | 2018-05-10 | 凸版印刷株式会社 | 紙バリア積層体および紙バリア容器 |
WO2018216544A1 (ja) * | 2017-05-26 | 2018-11-29 | 栗原紙材株式会社 | 積層パルプモールドの製造方法および積層パルプモールド製造装置 |
JP2020158926A (ja) * | 2019-03-27 | 2020-10-01 | 王子ホールディングス株式会社 | シートおよびシートの製造方法 |
JP2020530409A (ja) * | 2018-07-09 | 2020-10-22 | ハンソル ペーパー カンパニー,リミテッド. | 水分及びガスバリア性に優れたバリア性積層体及びその製造方法 |
JP2021101059A (ja) * | 2012-12-11 | 2021-07-08 | ファイバーリーン テクノロジーズ リミテッド | セルロース由来の組成物 |
JP6958757B1 (ja) * | 2020-12-28 | 2021-11-02 | 王子ホールディングス株式会社 | 蒸着紙用原紙および蒸着紙 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2554589B1 (en) * | 2010-03-26 | 2017-12-13 | Toppan Printing Co., Ltd. | Film-forming composition and sheet |
RU2672648C2 (ru) * | 2013-09-06 | 2018-11-16 | Биллерудкорснес Аб | Барьерные для кислорода и водяного пара пленки с низкой чувствительностью к влаге, изготовленные из самосшивающейся фибриллированной целлюлозы |
FR3015356B1 (fr) * | 2013-12-20 | 2015-12-25 | Oberthur Fiduciaire Sas | Procede de traitement de surface d'un document de securite et document de securite associe |
FI126761B (en) | 2014-11-28 | 2017-05-15 | Teknologian Tutkimuskeskus Vtt Oy | A method for improving the water resistance of bio-based CNF films |
SE539754C2 (en) | 2016-03-22 | 2017-11-14 | Stora Enso Oyj | Oxygen barrier film and laminate and methods of manufacturing the same |
JP2017190544A (ja) * | 2016-04-15 | 2017-10-19 | 凸版印刷株式会社 | バリア紙、紙カップ |
JPWO2018168736A1 (ja) * | 2017-03-13 | 2020-05-14 | 富士フイルム株式会社 | 転写フィルムおよび画像形成方法 |
SE1750411A1 (ja) * | 2017-04-03 | 2018-10-04 | ||
SE542054C2 (en) * | 2017-12-22 | 2020-02-18 | Stora Enso Oyj | Multilayer film comprising microfibrillated cellulose and a method of manufacturing a multilayer film |
NL2021326B1 (en) * | 2018-03-29 | 2019-10-07 | Huhtamaki Molded Fiber Tech Bv | Biodegradable and compostable food packaging unit from a moulded pulp material with a cellulose-base laminate layer, and method for manufacturing such food packaging unit |
US11713546B2 (en) * | 2019-09-27 | 2023-08-01 | Sin Woo Co., Ltd. | Method for manufacturing paper buffer tray for packaging and buffer tray manufactured thereby |
SE544693C2 (en) * | 2020-05-07 | 2022-10-18 | Stora Enso Oyj | Process for production of nano-coated substrate |
KR102530774B1 (ko) * | 2021-02-17 | 2023-05-12 | 주식회사그린패키지솔루션 | 전자제품용 친환경 코팅 펄프 트레이 |
EP4162906A1 (en) * | 2021-10-08 | 2023-04-12 | Ontex BV | Wrapper for absorbent article |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11309816A (ja) | 1998-04-30 | 1999-11-09 | Sumitomo Chem Co Ltd | 液体包装用積層紙および液体包装用容器 |
JP2002322313A (ja) * | 2001-04-26 | 2002-11-08 | Toppan Printing Co Ltd | セルロース複合体、及びこのセルロース複合体を用いた内添紙製品 |
JP2002348522A (ja) * | 2001-05-29 | 2002-12-04 | Toppan Printing Co Ltd | コーティング剤及びそのコーティング剤を用いた積層材料 |
JP2003201695A (ja) * | 2001-12-26 | 2003-07-18 | Kansai Tlo Kk | セルロースミクロフィブリルを用いた高強度材料 |
JP2009057552A (ja) * | 2007-08-07 | 2009-03-19 | Kao Corp | ガスバリア用材料 |
JP2009263850A (ja) * | 2008-03-31 | 2009-11-12 | Nippon Paper Industries Co Ltd | 印刷用紙 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE467404C (sv) * | 1990-11-07 | 1998-04-27 | Tetra Laval Holdings & Finance | Förpackningsmaterial med goda gasbarriäregenskaper samt sätt att framställa materialet |
SE516817C2 (sv) * | 1999-09-07 | 2002-03-05 | Tetra Laval Holdings & Finance | Förfarande för framställning av ett laminerat förpackningsmaterial, förpackningsmaterial som framställts enligt detta förfartande, samt förpackningar framställda av detta förpackningsmaterial |
SE522090C2 (sv) * | 2000-10-03 | 2004-01-13 | Tetra Laval Holdings & Finance | Förpackningslaminat för en autoklaverbar förpackningsbehållare samt förpackningsbehållare framställd av laminatet |
WO2004016852A2 (en) * | 2002-08-15 | 2004-02-26 | Donaldson Company, Inc. | Polymeric microporous paper coating |
DE10323374A1 (de) * | 2003-05-21 | 2004-12-09 | Basf Drucksysteme Gmbh | Metallic-Druckfarbe und deren Verwendung zur Veredelung von Drucken |
CN1594731A (zh) * | 2003-09-10 | 2005-03-16 | 王家君 | 一种微细纤维增强纸 |
JP4398265B2 (ja) | 2004-01-27 | 2010-01-13 | 三菱樹脂株式会社 | ガスバリア性フィルム及びガスバリア性積層体 |
KR100894377B1 (ko) * | 2004-07-01 | 2009-04-22 | 아사히 가세이 가부시키가이샤 | 셀룰로오스 부직포 |
US20090324143A1 (en) * | 2005-08-19 | 2009-12-31 | Exopack, Llc. | Bags having composite structures and related methods |
JP2007231438A (ja) * | 2006-02-28 | 2007-09-13 | Daicel Chem Ind Ltd | 微小繊維状セルロース及びその製造方法 |
EP2371893A1 (en) * | 2008-12-26 | 2011-10-05 | Kao Corporation | Cellulose fiber suspension and manufacturing method therefor, and film-like formed body and manufacturing method therefor |
WO2010074340A1 (ja) * | 2008-12-26 | 2010-07-01 | 花王株式会社 | ガスバリア用材料及びガスバリア性成形体とその製造方法 |
-
2011
- 2011-03-18 US US13/636,443 patent/US9994005B2/en active Active
- 2011-03-18 EP EP11759327.7A patent/EP2551105B1/en active Active
- 2011-03-18 KR KR1020127026348A patent/KR101816331B1/ko active IP Right Grant
- 2011-03-18 CN CN201180015232.9A patent/CN102834259B/zh active Active
- 2011-03-18 WO PCT/JP2011/056542 patent/WO2011118521A1/ja active Application Filing
- 2011-03-18 JP JP2012506981A patent/JP5772815B2/ja active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11309816A (ja) | 1998-04-30 | 1999-11-09 | Sumitomo Chem Co Ltd | 液体包装用積層紙および液体包装用容器 |
JP2002322313A (ja) * | 2001-04-26 | 2002-11-08 | Toppan Printing Co Ltd | セルロース複合体、及びこのセルロース複合体を用いた内添紙製品 |
JP2002348522A (ja) * | 2001-05-29 | 2002-12-04 | Toppan Printing Co Ltd | コーティング剤及びそのコーティング剤を用いた積層材料 |
JP2003201695A (ja) * | 2001-12-26 | 2003-07-18 | Kansai Tlo Kk | セルロースミクロフィブリルを用いた高強度材料 |
JP2009057552A (ja) * | 2007-08-07 | 2009-03-19 | Kao Corp | ガスバリア用材料 |
JP2009263850A (ja) * | 2008-03-31 | 2009-11-12 | Nippon Paper Industries Co Ltd | 印刷用紙 |
JP2009263854A (ja) * | 2008-03-31 | 2009-11-12 | Nippon Paper Industries Co Ltd | グラビア印刷用塗工紙 |
JP2009263848A (ja) * | 2008-03-31 | 2009-11-12 | Nippon Paper Industries Co Ltd | 製紙用添加剤及びそれを含有する紙 |
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11969695B2 (en) | 2012-02-15 | 2024-04-30 | Hokuetsu Corporation | Porous body and process for manufacturing same |
WO2013121539A1 (ja) * | 2012-02-15 | 2013-08-22 | 北越紀州製紙株式会社 | 多孔質体及びその製造方法 |
JP2021101059A (ja) * | 2012-12-11 | 2021-07-08 | ファイバーリーン テクノロジーズ リミテッド | セルロース由来の組成物 |
JP2015024537A (ja) * | 2013-07-25 | 2015-02-05 | 凸版印刷株式会社 | 防湿フィルム及び包装材料用防湿フィルム |
JPWO2015011899A1 (ja) * | 2013-07-25 | 2017-03-02 | 凸版印刷株式会社 | シート材及びそれを用いたバリア性包装容器並びにシート材の製造方法 |
JP2015024539A (ja) * | 2013-07-25 | 2015-02-05 | 凸版印刷株式会社 | 積層体およびその製造方法ならびに成形容器 |
JP2015024538A (ja) * | 2013-07-25 | 2015-02-05 | 凸版印刷株式会社 | シート材及びバリア性包装容器 |
JP2015024540A (ja) * | 2013-07-25 | 2015-02-05 | 凸版印刷株式会社 | 積層体およびその製造方法 |
JP2018134879A (ja) * | 2013-11-20 | 2018-08-30 | 大王製紙株式会社 | ガスバリア性シート |
JP2015120338A (ja) * | 2013-11-20 | 2015-07-02 | 大王製紙株式会社 | ガスバリア性シートの製造方法及びガスバリア性シート |
JP2016132241A (ja) * | 2015-01-22 | 2016-07-25 | 大王製紙株式会社 | 複合紙の製造方法及び複合紙 |
JP2016159576A (ja) * | 2015-03-04 | 2016-09-05 | 凸版印刷株式会社 | ガスバリア積層体及びその製造方法 |
JP2016222878A (ja) * | 2015-06-03 | 2016-12-28 | 大王製紙株式会社 | ガスバリア層形成用塗工液及びその製造方法、並びにガスバリア性シート及びその製造方法 |
JP2016222877A (ja) * | 2015-06-03 | 2016-12-28 | 大王製紙株式会社 | ガスバリア層形成用塗工液及びその製造方法、並びにガスバリア性シート及びその製造方法 |
WO2017179729A1 (ja) * | 2016-04-14 | 2017-10-19 | 凸版印刷株式会社 | 紙カップ、酸性食品用紙カップ |
JPWO2017179729A1 (ja) * | 2016-04-14 | 2019-02-21 | 凸版印刷株式会社 | 紙カップ、酸性食品用紙カップ |
US10358253B2 (en) | 2016-04-14 | 2019-07-23 | Toppan Printing Co., Ltd. | Paper cup, paper cup for acidic food |
EP3444195A4 (en) * | 2016-04-14 | 2019-11-27 | Toppan Printing Co., Ltd. | PAPER MUG, PAPER MUG FOR SOUR FOOD |
JP2018069676A (ja) * | 2016-11-02 | 2018-05-10 | 凸版印刷株式会社 | 紙バリア積層体および紙バリア容器 |
WO2018216544A1 (ja) * | 2017-05-26 | 2018-11-29 | 栗原紙材株式会社 | 積層パルプモールドの製造方法および積層パルプモールド製造装置 |
JP2020530409A (ja) * | 2018-07-09 | 2020-10-22 | ハンソル ペーパー カンパニー,リミテッド. | 水分及びガスバリア性に優れたバリア性積層体及びその製造方法 |
US11225757B2 (en) | 2018-07-09 | 2022-01-18 | Hansol Paper Co., Ltd. | Barrier laminate with excellent barrier properties against moisture and gas and method of manufacturing same |
JP2020158926A (ja) * | 2019-03-27 | 2020-10-01 | 王子ホールディングス株式会社 | シートおよびシートの製造方法 |
JP6958757B1 (ja) * | 2020-12-28 | 2021-11-02 | 王子ホールディングス株式会社 | 蒸着紙用原紙および蒸着紙 |
JP2022104489A (ja) * | 2020-12-28 | 2022-07-08 | 王子ホールディングス株式会社 | 蒸着紙用原紙および蒸着紙 |
Also Published As
Publication number | Publication date |
---|---|
JP5772815B2 (ja) | 2015-09-02 |
CN102834259A (zh) | 2012-12-19 |
US20130004687A1 (en) | 2013-01-03 |
KR101816331B1 (ko) | 2018-01-08 |
US9994005B2 (en) | 2018-06-12 |
EP2551105A1 (en) | 2013-01-30 |
KR20130010476A (ko) | 2013-01-28 |
EP2551105B1 (en) | 2019-09-11 |
CN102834259B (zh) | 2016-01-20 |
JPWO2011118521A1 (ja) | 2013-07-04 |
EP2551105A4 (en) | 2013-09-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5772815B2 (ja) | 積層体およびその製造方法ならびに成形容器 | |
JP6122909B2 (ja) | 紙又は板紙基材、基材を製造するための方法、及び基材から形成されるパッケージ | |
WO2011040547A1 (ja) | 紙製バリア材料 | |
JP6318490B2 (ja) | 積層体 | |
JP2011073174A (ja) | バリアフィルムとその製造方法 | |
JP2015024539A (ja) | 積層体およびその製造方法ならびに成形容器 | |
JP7233278B2 (ja) | 紙製バリア材料 | |
JP2019183370A (ja) | 紙製バリア材料 | |
JP2015024541A (ja) | 匂いバリア性積層体 | |
JP6870218B2 (ja) | 紙バリア積層体および成形容器 | |
JP2021137983A (ja) | 紙バリア積層体および紙バリア容器 | |
JP4622201B2 (ja) | ガスバリア性積層体およびガスバリア性容器 | |
TW201941958A (zh) | 紙製阻障材料 | |
WO2021251449A1 (ja) | 蒸着用紙基材 | |
JP2019177586A (ja) | バリア紙 | |
JP6988068B2 (ja) | 紙バリア積層体および紙バリア容器 | |
JP4644996B2 (ja) | バリア性素材およびバリア性容器 | |
KR102589321B1 (ko) | 수분 및 산소차단성 종이 및 이의 제조방법 | |
JP7452822B2 (ja) | 一段階共集合によるナノコンポジット塗装系 | |
SE545483C2 (en) | Barrier laminate for packaging material | |
JP2002293365A (ja) | 紙製帯束バンド | |
JP2023526603A (ja) | 包装材料の製造方法 | |
JP2001271288A (ja) | ガスバリア材およびガスバリア容器 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201180015232.9 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11759327 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2012506981 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13636443 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 20127026348 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2011759327 Country of ref document: EP |