WO2012147665A1 - ポリビニルアルコール系重合体フィルムの包装体 - Google Patents

ポリビニルアルコール系重合体フィルムの包装体 Download PDF

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Publication number
WO2012147665A1
WO2012147665A1 PCT/JP2012/060807 JP2012060807W WO2012147665A1 WO 2012147665 A1 WO2012147665 A1 WO 2012147665A1 JP 2012060807 W JP2012060807 W JP 2012060807W WO 2012147665 A1 WO2012147665 A1 WO 2012147665A1
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WO
WIPO (PCT)
Prior art keywords
core
peripheral surface
packaging material
roll
package
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Application number
PCT/JP2012/060807
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
松田　一彦
創 西馬
正樹 山中
Original Assignee
株式会社クラレ
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 株式会社クラレ filed Critical 株式会社クラレ
Priority to KR1020137023290A priority Critical patent/KR101985980B1/ko
Priority to JP2012533806A priority patent/JPWO2012147665A1/ja
Priority to CN201280020677.0A priority patent/CN103648927B/zh
Publication of WO2012147665A1 publication Critical patent/WO2012147665A1/ja

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    • 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/67—Containers, packaging elements or packages, specially adapted for particular articles or materials for web or tape-like material
    • B65D85/671—Containers, packaging elements or packages, specially adapted for particular articles or materials for web or tape-like material wound in flat spiral form
    • B65D85/672—Containers, packaging elements or packages, specially adapted for particular articles or materials for web or tape-like material wound in flat spiral form on cores
    • 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
    • B65D65/02—Wrappers or flexible covers
    • B65D65/10—Wrappers or flexible covers rectangular
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants

Definitions

  • the present invention relates to a package formed by packaging a roll in which a polyvinyl alcohol polymer film is wound around a cylindrical core with a packaging material, and a method for storing or transporting the package.
  • the plastic film is usually stored or transported in the form of a package formed by wrapping a roll formed by winding a cylindrical core with a packaging material.
  • a package By setting it as a package, the deterioration of the external appearance by the adhesion of water to the roll surface can be prevented, or the adverse effect on film properties due to moisture absorption can be prevented.
  • a plastic film having a high hygroscopic property such as a polyvinyl alcohol polymer (hereinafter, “polyvinyl alcohol polymer” may be abbreviated as “PVA”), which is a raw material of the polarizing film, the inside of the packaging body.
  • PVA polyvinyl alcohol polymer
  • Patent Document 1 describes a method of wrapping a film roll with a wrapping film and pushing a remaining portion in the width direction into a core.
  • Patent Document 2 relates to a packaging method, in which after a width direction end portion of a packaging film (packaging material) is pushed into a hollow portion of a tubular core material, a suspension cap is inserted into the hollow portion of the core material.
  • a film roll package (see Patent Document 3) having a specific packaging rubber band fixed to both ends is known.
  • both side edges (both ends) refer to portions when the packaging sheet is viewed macroscopically, and the packaging sheet is sufficiently fixed even when the packaging rubber band moves in the length direction of the core.
  • the rubber band for packaging is arrange
  • PVA film which is a raw material for polarizing films for liquid crystal displays
  • the size of liquid crystal displays increases, wider PVA films are required, and in order to improve workability and productivity of polarizing films, Long PVA films are also desired.
  • the weight of the roll has increased, so that when the roll is loaded and unloaded and moved onto the gantry or processing apparatus, a support rod is inserted into the core for handling.
  • Methods have come to be used extensively. Therefore, to facilitate the insertion of the support rod into the core, the cylindrical core is opened without closing both ends with a cap or the like, and the roll is transported or stored with the core exposed to the outside air. Has increased.
  • a metal having a high strength such as bending rigidity
  • carbon fiber reinforced plastic or a composite material thereof has been used.
  • condensation may occur on the surface of the package.
  • dew condensation is more likely to occur due to the increase in the heat capacity of the roll and the accompanying decrease in the temperature change rate of the entire roll.
  • metal cores and carbon fiber reinforced plastic cores have come to be used with increasing roll weight, but metal or plastic cores can be used as paper cores. Condensation is likely to occur. Such condensation is particularly likely to occur on the inner peripheral surface of the cylindrical core that is susceptible to the temperature of the PVA film.
  • the present invention provides a packaging body in which water derived from dew condensation hardly enters the packaging body even when condensation occurs on the surface of the packaging body, such as an inner peripheral surface of a cylindrical core, and the packaging
  • the object is to provide a method for storing or transporting a package using the body.
  • the present inventors have packed water by fixing the end of the packaging material on the outer peripheral surface of the protruding portion of the core when packaging the roll with the packaging material. It was found that the intrusion into the body was effectively prevented and the above-mentioned object was achieved, and further studies were made based on this finding to complete the present invention.
  • the present invention [1] A package in which a roll in which a PVA film is wound around a cylindrical core is wrapped with a packaging material, and both end portions of the core form protrusions protruding from the roll end surface, A packaging body in which at least a part of an end of the packaging material is fixed on an outer peripheral surface of the protruding portion; [2] The package of the above [1], wherein at least a part of the surface of the core is made of metal and / or plastic. [3] The package according to [1] or [2], wherein an inner peripheral surface of the core is exposed to outside air in the package.
  • the protruding portion is tightened along the outer periphery of the protruding portion via the packaging material in which at least a part of the end is fixed on the outer peripheral surface of the protruding portion by the fastening member.
  • the packaging material is less of a film water vapor permeability of 5g / m 2 / 24h, the [1] to any one of the package of [8], [10] A method of storing a package, wherein the package of any one of [1] to [9] is stored at 10 ° C. or lower. [11] A method for transporting a package, wherein the package is transported in a state where a support rod is put inside the core of any one of the above [1] to [9]. About.
  • the packaging body of the present invention even when condensation occurs on the surface of the packaging body, such as the inner peripheral surface of the cylindrical core, it is difficult for water derived from condensation to enter the interior of the packaging body.
  • FIG. 1 is a schematic view showing an example of a roll used in the present invention.
  • a roll 1 is formed by winding a PVA film 3 around a cylindrical core 2.
  • Each of both end portions 4 of the cylindrical core 2 forms a protruding portion 6 that protrudes outward from the roll end surface 5 in the length direction of the core.
  • cylindrical core there is no particular limitation on the type of the above-described cylindrical core, and examples thereof include a metal one, a plastic one, a paper one, and a wooden one. It is also possible to use a core in the form of a composite, such as one using both metal and plastic, one using both metal and paper, and one using both plastic and paper. Among these, a metal and / or plastic core is preferable because it has high strength and the effects of the present invention are more prominent, and is not easily affected by wear or the like even when used repeatedly. The core is more preferable.
  • the proportion of the mass of the metal and plastic with respect to the total mass of the cylindrical core is preferably 50% by mass or more, more preferably 80% by mass or more, and further preferably 95% by mass or more. The amount is preferably 100% by mass.
  • Examples of the metal include iron, stainless steel, and aluminum. One of these may be used alone, or two or more may be used in combination. Among these, aluminum is preferable from the viewpoint of strength, lightness, price, and the like.
  • plastic examples include polyvinyl chloride, polyvinylidene chloride, polyester, polycarbonate, polyamide, epoxy resin, polyurethane, polyurea, and silicone resin. One of these is used alone. Moreover, you may use 2 or more types together. Of these, polyvinyl chloride is preferred.
  • the plastic is also preferably a fiber reinforced plastic (FRP) such as a carbon fiber reinforced plastic from the viewpoint of strength and the like.
  • FRP fiber reinforced plastic
  • the cylindrical core has at least a part of its inner peripheral surface (preferably 50% or more of the area of the inner peripheral surface, more preferably the area of the inner peripheral surface because the effects of the present invention are more remarkably exhibited. 80% or more) is preferably a metal and / or plastic, more preferably the entire inner peripheral surface is a metal and / or plastic, and the entire surface of the cylindrical core is a metal. More preferably, it is plastic.
  • the length of the cylindrical core is longer than the width of the PVA film so that both ends of the cylindrical core can form protrusions protruding from the end face of the roll.
  • the length of the cylindrical core is preferably longer in the range of 5 to 100 cm, more preferably in the range of 10 to 45 cm than the width of the PVA film described later, from the viewpoint of handleability and the like. More preferably, the length is within the range of 15 to 30 cm.
  • the diameter of the cylindrical core is not particularly limited, but the outer diameter is preferably in the range of 50 to 800 mm, more preferably in the range of 80 to 500 mm, from the viewpoint of strength, handleability, and the like. A range of 100 to 300 mm is more preferable, and a range of 150 to 250 mm is particularly preferable.
  • the thickness of the cylindrical core is preferably in the range of 2 to 50 mm, more preferably in the range of 3 to 20 mm, and more preferably in the range of 4 to 10 mm from the viewpoints of strength, handleability, and the like. More preferably, it is within.
  • the roll used in the present invention is formed by winding a PVA film around a cylindrical core. Since the PVA film is greatly deteriorated in quality due to moisture absorption, the effects of the present invention are remarkably exhibited.
  • the PVA constituting the PVA film one produced by saponifying a vinyl ester polymer obtained by polymerizing a vinyl ester monomer can be used.
  • vinyl ester monomers include vinyl formate, vinyl acetate, vinyl propionate, vinyl valerate, vinyl laurate, vinyl stearate, vinyl benzoate, vinyl pivalate, vinyl versatate, and the like. Among these, vinyl acetate is preferable.
  • the degree of polymerization of the PVA constituting the PVA film is preferably in the range of 500 to 9000, more preferably in the range of 1500 to 7000, more preferably in the range of 1800 to 5000, depending on the use of the PVA film. More preferably, it is within the range, and particularly preferably within the range of 2000 to 3000.
  • the polymerization degree of PVA as used in this specification means the average degree of polymerization measured according to description of JIS K6726-1994.
  • the saponification degree of PVA which comprises a PVA film is based also on the use of a PVA film, it is preferable that it is 75 mol% or more, it is more preferable that it is 85 mol% or more, and it is 95 mol% or more. More preferably, it is 99 mol% or more.
  • the degree of saponification of PVA refers to the total number of moles of structural units (typically vinyl ester units) that can be converted into vinyl alcohol units by saponification and the vinyl alcohol units of PVA. The proportion (mol%) occupied by the number of moles of vinyl alcohol units.
  • the degree of saponification can be measured according to the description of JIS K6726-1994.
  • the PVA film may contain a plasticizer, a surfactant, a dichroic dye, or the like as necessary.
  • a plasticizer such as a polymethyl methacrylate, polymethyl methacrylate, polymethyl methacrylate, polymethyl methacrylate, polymethyl methacrylate, polymethyl methacrylate, polymethyl methacrylate, polymethyl methacrylate, polymethyl methacrylate, polymethyl methacrylate, polymethyl methacrylate, polymethyl methacrylate, polymethyl methacrylate, polymethyl methacrylate, polymethyl methacrylate, or the like.
  • the PVA film formed by well-known methods such as a solution film forming method and a melt film forming method, can be used preferably.
  • the thickness of the PVA film is not particularly limited, but is preferably in the range of 5 to 500 ⁇ m, more preferably in the range of 15 to 300 ⁇ m, and still more preferably in the range of 20 to 100 ⁇ m.
  • the width of the PVA film is not particularly limited, but is preferably 2.1 m or more, more preferably 2.3 m or more, further preferably 2.6 m or more, and particularly preferably 3 m or more. Most preferably, it is 3.3 m or more.
  • the length of the cylindrical core is further longer than the width of the PVA film, and a large amount of water derived from condensation is likely to be generated. Since it is difficult for water derived from condensation to enter the inside of the package, the effect of the present invention is more remarkably exhibited when a PVA film having the above-described width is used.
  • the trim refers to a portion that cannot be used as a product, in which both ends of the PVA film are cut by a certain width during processing.
  • the width of the PVA film is preferably 8 m or less.
  • the length of the PVA film wound around the cylindrical core is not particularly limited, it is preferably 1000 m or more, more preferably 2000 m or more, and further preferably 3000 m or more. If it is less than 1000 m, it may not be economical because the ratio of the loss generated at the beginning / end of winding of the roll to the whole becomes large.
  • the upper limit of the length of the PVA film is not particularly limited, but if it is too long, the mass and diameter of the roll become excessive, and the handling thereof tends to be difficult when loading and unloading and moving to a gantry or processing apparatus. Therefore, the length of the PVA film is preferably 10,000 m or less.
  • the mass of the roll used in the present invention is preferably 0.5 t or more, more preferably 1.5 t or more, and further preferably 2.5 t or more.
  • the mass of the roll is preferably 5 t or less.
  • the package of the present invention is obtained by packaging the above roll with a packaging material.
  • the type of the packaging material is not particularly limited.
  • a laminated film in which aluminum is vapor-deposited on polyethylene terephthalate a laminated film of polyester and aluminum foil and polyethylene, a laminated film of aluminum-deposited polyester and polyethylene, an alumina-deposited polyester and polyethylene
  • Examples include laminated films, laminated films of glass-deposited polyester and polyethylene, laminated films of polyvinylidene chloride-coated polypropylene and polyethylene, polypropylene films, high-density polyethylene films, and low-density polyethylene films.
  • packaging materials may be used individually by 1 type, or may use 2 or more types together, However, It is preferable to use together 2 or more types of packaging materials which have a different function.
  • the aspect which wraps a roll with one packaging material, and is further packaged with another packaging material from it for example is mentioned.
  • a material having excellent mechanical strength is preferably used, and specifically, a high-density polyethylene film resistant to dirt and rubbing can be preferably used.
  • the thickness of the packaging material that does not come into contact with the roll surface is preferably in the range of 20 to 60 ⁇ m from the viewpoint of handleability.
  • a packaging material in the case of using one kind of packaging material alone, or a packaging material in contact with the roll surface in the case of using two or more kinds of packaging materials a laminated film in which aluminum is vapor-deposited on polyethylene terephthalate Polyester, aluminum foil and polyethylene laminated film, aluminum vapor deposited polyester and polyethylene laminated film, alumina vapor deposited polyester and polyethylene laminated film, and glass vapor deposited polyester and polyethylene laminated film are preferred because of their excellent moisture resistance.
  • the thickness of the packaging material in contact with the roll surface is preferably in the range of 5 to 60 ⁇ m, more preferably in the range of 10 to 20 ⁇ m, from the viewpoint of handleability and the like.
  • Packaging material packaging material preferably in contact with the roll surface, since it is possible to prevent the influence of water on the PVA film more effectively, it is preferable that water vapor permeability of not more than the film 5g / m 2 / 24h , more preferably a film of less 3g / m 2 / 24h, further preferably less film 1.5g / m 2 / 24h.
  • water vapor permeability means water vapor permeability measured according to the infrared sensor method (40 ° C., 90% RH) described in JIS K7129: 2008.
  • the packaging method when packaging the roll with the packaging material there is no particular limitation on the packaging method when packaging the roll with the packaging material.
  • a method of squeezing the packaging material protruding outward in the length direction of the core, and then fixing the end of the squeezed packaging material on the outer peripheral surface of the protruding portion of the core For example, a method of squeezing the packaging material protruding outward from the roll end surface in the length direction of the core and then fixing the end of the squeezed packaging material on the outer peripheral surface of the protruding portion of the core may be used.
  • the end of the squeezed packaging material is cut off, and the end of the newly generated wrapping material is fixed on the outer peripheral surface of the core projection. It is preferable because it is easy to fix the end of the packaging material at the desired position on the outer peripheral surface, but after squeezing the protruding packaging material, the end of the packaging material is squeezed as it is without cutting the end, and the outer periphery of the protruding portion of the core It may be fixed on the surface.
  • the protruding portion of the first type of packaging material is squeezed, and then the end of the squeezed first type of packaging material is fixed on the outer peripheral surface of the protruding portion of the core.
  • the protruding part of the second type of packaging material may be squeezed, and then the end of the second type of packaging material that has been squeezed may be fixed on the outer peripheral surface of the protruding portion of the core, or multiple types of packaging material may protrude
  • the portions may be squeezed together and then the end of the squeezed packaging material may be secured on the outer peripheral surface of the core protrusion.
  • the packaging material that protrudes outward in the length direction of the core from the roll end face is then squeezed, A method of fixing the end of the squeezed packaging material on the outer peripheral surface of the protruding portion of the core is preferable.
  • the number of windings of each packaging material is not particularly limited, and may be either single winding or multiple winding such as double winding. Even if it is damaged, its influence can be reduced, which is preferable.
  • the end substantially parallel to the length direction of the core is fixed using an adhesive tape such as a plastic tape, a cloth tape, a paper tape, or an adhesive
  • an adhesive tape such as a plastic tape, a cloth tape, a paper tape, or an adhesive
  • the packaging material is made cylindrical as a whole because water can be more effectively prevented from entering the inside of the package.
  • FIG. 2 shows a schematic diagram of an example of a packaging method when a roll is packaged with a sheet-shaped packaging material.
  • the sheet-shaped packaging material 11 is wound along the outer periphery of the roll, and the end portion is substantially parallel to the length direction of the core. 14 is fixed with an adhesive tape or an adhesive (not shown) to form a cylinder.
  • a portion 15 protruding outward in the length direction of the core from the roll end surface 12 of the packaging material is squeezed so that the packaging material is protruded at both ends of the core.
  • the end of the packaging material 11 is fixed on the outer peripheral surface of the protrusion 13 as described later.
  • the slack portion when the packaging material 11 is squeezed is bent and the end thereof is also fixed on the outer peripheral surface of the protruding portion, it is possible to more effectively prevent water from entering the inside of the packaging body. ,preferable.
  • a washer When packaging a roll with a packaging material, it is preferable to place a washer inside the package and at a position adjacent to the end face of the roll in order to protect the PVA film from scratches and impacts.
  • a washer a polystyrene washer, a urethane washer, etc. can be used, for example.
  • a washer should be placed outside the package and adjacent to the roll end surface so that the packaging material near the roll end surface is not damaged when the package is loaded on a transportation stand. Is preferred.
  • a wooden washer or a cardboard washer can be used.
  • the inner peripheral surface of the cylindrical core is exposed to the outside air. It is preferable that the support rod can be inserted into the core and can be handled, and since the support rod can be penetrated into the core, it is more preferable that the package has penetrated in the length direction of the cylindrical core.
  • the inner peripheral surface of the cylindrical core may not be exposed to the outside air.
  • the present invention it is important that at least a part of the end of the packaging material is fixed on the outer peripheral surface of the protruding portion.
  • the end of the packaging material is a free end without being fixed, water stays near the end of the packaging material for a long time, Capillary phenomenon easily penetrates into the package from between the packaging material and the protrusion.
  • the edge of the packaging material is fixed on the outer peripheral surface of the protruding portion, water derived from condensation generated on the inner peripheral surface of the core has moved to the outer peripheral surface of the protruding portion.
  • the end of the packaging material fixed on the outer peripheral surface of the protruding portion may be fixed in direct contact with the outer peripheral surface of the protruding portion. It may be fixed without contact. Examples of aspects that are fixed without direct contact include, for example, an aspect that is fixed via an adhesive that will be described later, and a case where the end of the slack portion of the packaging material is fixed on the outer peripheral surface of the protruding portion. Thus, the aspect etc. which are being fixed via the packaging material are mentioned.
  • the inner peripheral surface of the core is arranged by arranging the package with the fixed end on the outer peripheral surface facing downward. It can suppress that the water derived from the dew condensation which generate
  • the fixed end on the outer peripheral surface is fixed so as to circulate substantially continuously around the outer periphery of each protrusion, there is no need to consider the orientation of the package, It is preferable because water can be effectively prevented from entering the inside of the package.
  • “around substantially continuously” means that the outer periphery is substantially continuously rotated.
  • the portion where the fixed end on the outer peripheral surface is not continuous is slightly. May be present.
  • the length along the outer periphery of the portion where the fixed end on the outer peripheral surface does not exist with respect to the length of the outer periphery (when there are multiple locations) Is preferably 10% or less, more preferably 5% or less, still more preferably 1% or less, and particularly preferably 0%.
  • the manner of fixing the fixed end on the outer peripheral surface on the outer peripheral surface of the protrusion for example, an embodiment in which it is fixed with an adhesive tape; an embodiment in which it is fixed with an adhesive; Aspect that is fixed by a fastening member such as a rubber band; In the case of using a core that is tapered so that the diameter of the end is smaller than the diameter other than the end, between the tapered part and the washer The fixed end on the outer peripheral surface is sandwiched between the outer peripheral surface and the like, and since the penetration of water into the inside of the package is more effectively prevented, the aspect and / or the adhesive fixed by the adhesive tape.
  • the aspect fixed by is preferable, and the aspect fixed with the adhesive tape from a viewpoint of operativity or economical efficiency is more preferable.
  • the adhesive tape protrudes so that the adhesive surface of the adhesive tape is in contact with both the packaging material and the outer peripheral surface of the protrusion in each of the protruding portions.
  • the aspect currently wound along the outer periphery of a part is mentioned. In this case, it is preferable that the adhesive tape is wound one or more times along the outer periphery of the protruding portion.
  • Adhesive tapes include paper adhesive tapes, cloth adhesive tapes, film adhesive tapes, special adhesive tapes, etc. Specifically, cellophane tape, craft adhesive tape, cloth adhesive tape, OPP adhesive tape, aluminum Examples thereof include a tape, a vinyl tape, a polyester tape, a polyethylene tape, a polypropylene tape, a polyimide tape, a gum tape, or a composite tape processed by combining two or more of these.
  • an adhesive tape having a multilayer structure of polyethylene and polypropylene is particularly preferable because it is excellent in waterproofness and durability.
  • an adhesive tape may be used individually by 1 type, or may use 2 or more types together.
  • the width of the pressure-sensitive adhesive tape is not particularly limited, but it is preferably in the range of 2 to 15 cm, more preferably in the range of 5 to 10 cm from the viewpoint of handleability.
  • the projecting portion in each of the two projecting portions, is fixed by the fastening member, and at least a part of the end is fixed on the outer peripheral surface of the projecting portion. It is preferable that it is tightened along.
  • the end of the packaging material is more firmly fixed on the outer peripheral surface, and even if water enters from between the end of the packaging material and the outer peripheral surface of the protruding portion, it contacts the roll Can be suppressed.
  • the fixing and cutting operation Becomes easier.
  • only one fastening member may be used, or two or more fastening members may be used.
  • a so-called binding tool can be used, and examples thereof include a metal or plastic binding band and an elastic band. Of these, a ring-shaped elastic band is preferable from the viewpoint of workability.
  • the inner diameter of the elastic band is not particularly limited, but the inner diameter when tightened is preferably 1.5 times or more compared with the inner diameter when normal (when not tightened) (inner diameter when circular). 2.0 times or more, more preferably 2.5 times or more. If the inner diameter when tightened is less than 1.5 times the normal inner diameter, the tightening force tends to be weakened. On the other hand, if the inner diameter when tightening exceeds 95% of the stretchable limit diameter of the elastic band, the tightening force tends to be uneven or break due to slight impact.
  • the thickness of the elastic band is not particularly limited, but is preferably in the range of 0.5 to 3 mm, more preferably in the range of 0.7 to 2 mm, and in the range of 1 to 1.5 mm. More preferably. When the thickness is less than 0.5 mm, there is a tendency to break due to a slight impact at the time of extension, and when the thickness exceeds 3 mm, the economy tends to deteriorate.
  • the width of the elastic band is not particularly limited, but is preferably within a range of 10 to 30 mm, and more preferably within a range of 15 to 20 mm. When the width is less than 10 mm, there is a tendency to break due to a slight impact at the time of extension, and when the width exceeds 30 mm, the economy tends to deteriorate.
  • FIG. 3 is a schematic view showing an example of a cross section in the vicinity of the protruding portion of the package in which the end of the packaging material is fixed on the outer peripheral surface of the protruding portion by an adhesive tape.
  • the ends of the packaging materials 25 a and 25 b that are double-rolled on the outer peripheral surface 22 of the protruding portion of the cylindrical core 21 are fixed by an adhesive tape 26.
  • the ends of the slack portions (25'a and 25'b) when the packaging material is squeezed are also fixed on the outer peripheral surface 22 of the protruding portion by the same adhesive tape 26.
  • the adhesive surface 27 of the adhesive tape 26 is in contact with both the packaging material (25b and 25′b) and the outer peripheral surface 22 of the protruding portion of the cylindrical core 21, and on the outer periphery of the protruding portion of the cylindrical core 21. It is wound around.
  • the adhesive tape 26 can be multiplex-wound.
  • the adhesive tape 26 has a double-winding portion in which an adhesive tape (first) 26a and an adhesive tape (double) 26b overlap.
  • the projecting portion of the cylindrical core 21 is tightened along the outer periphery of the projecting portion by the fastening member 28 via the packaging materials 25a and 25b whose ends are fixed on the outer peripheral surface of the projecting portion. It has been.
  • FIG. 3 the adhesive tape 26 has a double-winding portion in which an adhesive tape (first) 26a and an adhesive tape (double) 26b overlap.
  • FIG. 3 is an example of a package using one packaging material alone, but two or more types of packaging materials may be used in combination as described above.
  • the storage conditions for storing the package of the present invention are not particularly limited, but the storage temperature is preferably within a range of ⁇ 20 to 50 ° C., and preferably within a range of ⁇ 10 to 40 ° C. More preferably, it is in the range of ⁇ 5 to 30 ° C.
  • the storage temperature is preferably within a range of ⁇ 20 to 50 ° C., and preferably within a range of ⁇ 10 to 40 ° C. More preferably, it is in the range of ⁇ 5 to 30 ° C.
  • a low temperature for example, 5 ° C. or less, or even 0 ° C. or less
  • the effect of the present invention is more remarkably exhibited when stored at such a low temperature because the water derived from the condensation that may occur does not easily enter the package.
  • the storage humidity is preferably 80% RH or less, and more preferably 50% RH or less.
  • the storage period when the package is stored is preferably within a range of 1 day to 1 year, and more preferably within a range of 2 days to 6 months.
  • the package of the present invention is preferably transported with a support rod in the core.
  • a support rod in the core.
  • Condensation on the inner peripheral surface of the core Condensation on the inner peripheral surface of the core was evaluated according to the following criteria. ⁇ : No condensation (water droplets) is observed. X: Condensation (water droplets) is observed.
  • a sample of 10 ⁇ 10 cm square (one layer) was continuously cut out in the width direction from the surface layer film of the roll whose average moisture content was to be measured.
  • Each of the obtained samples was left to dry in a dryer at 125 ° C. for 8 hours, and the moisture difference of each sample was calculated by dividing the mass difference before and after drying by the mass of the sample before drying.
  • the moisture content of the obtained sample was averaged to obtain the average moisture content of the roll.
  • the same operation as described above was performed in advance for the roll before packaging, and the amount of change in the average moisture content was determined by subtracting the average moisture content of the roll before packaging from the average moisture content of the roll to be measured.
  • Example 1 A PVA film having a film width of 2.8 m, a thickness of 75 ⁇ m, and a length of 4000 m (PVA polymerization degree 2400, PVA saponification degree 99.9 mol%) made of aluminum, length 3.1 m, outer diameter 153 mm, wall thickness A roll was wound around the center of a 7 mm cylindrical core. The mass of this roll was 1.2 t.
  • the laminated film obtained by depositing aluminum on a polyethylene terephthalate (thickness 12 [mu] m, water vapor permeability 1.5g / m 2 / 24h.
  • deposit film Passed along the outer periphery of the roll two Heavy winding was performed, and the end portion substantially parallel to the length direction of the core was fixed with a paper tape to form a cylinder.
  • a high-density polyethylene film (thickness 20 ⁇ m) was double-rolled along the outer periphery of the roll from above, and the end substantially parallel to the length direction of the core was fixed with a paper tape to form a cylinder.
  • a set of urethane washers are arranged so as to be adjacent to each roll end face, and then the vapor-deposited film and the high-density polyethylene film protruding outward from the both roll end faces in the length direction of the core are collectively squeezed.
  • the end of the slack portion is bent along the outer periphery of each protruding portion, and each protruding portion of the core is further bent by a ring-shaped rubber band (ordinary inner diameter 76 mm, thickness 1.1 mm, width 18 mm). It clamped along the outer periphery of a protrusion part via a density polyethylene film.
  • the ends of the vapor-deposited film and the high-density polyethylene film including the end of the slack portion are fixed on the outer peripheral surface of each protruding portion with an adhesive tape (adhesive tape having a multilayer structure of polyethylene and polypropylene; width 5 cm), and PVA
  • the film was sealed.
  • the adhesive tape was wound along the outer periphery of each protrusion so that the adhesive surface of the adhesive tape was in contact with both the high-density polyethylene film and the outer peripheral surface of the protrusion.
  • a set of corrugated cardboard washers was disposed from the top of the high-density polyethylene film at a position adjacent to each roll end face to obtain a package.
  • the package obtained as described above was stored in an atmosphere of ⁇ 5 ° C. and 10% RH for 3 days, then moved to an atmosphere of 20 ° C. and 40% RH, left for 3 hours, and then subjected to the above method.
  • the condensation on the inner peripheral surface of the core was evaluated. Next, assuming that a large amount of dew condensation occurred, 100 ml of water was allowed to flow inside the cylindrical core, and shaking was assumed assuming shaking during transportation. And after wiping off the water in the vicinity of the end of the core so that the water does not contact the PVA film at the time of opening, the package is opened, and the appearance evaluation of the roll and the change in the average moisture content are measured by the above method. It was. The results are shown in Table 1.
  • Example 2 In Example 1, a package was obtained in the same manner as in Example 1 except that tightening with a rubber band was not performed. About this packaging body, it carried out similarly to Example 1, and performed each evaluation or measurement of the dew condensation in the internal peripheral surface of a core, the external appearance of a roll, and the variation
  • Example 1 a package was obtained in the same manner as in Example 1 except that the end of the packaging material was not fixed with an adhesive tape. About this packaging body, it carried out similarly to Example 1, and performed each evaluation or measurement of the dew condensation in the internal peripheral surface of a core, the external appearance of a roll, and the variation
  • Example 1 is the same as Example 1 except that the packaging material remaining in the width direction is pushed into the core without fixing the end of the packaging material with an adhesive tape or tightening with a rubber band. Thus, a package was obtained. About this packaging body, it carried out similarly to Example 1, and performed each evaluation or measurement of the dew condensation in the internal peripheral surface of a core, the external appearance of a roll, and the variation
  • condensation occurs on the surface of the packaging body, such as the inner peripheral surface of the cylindrical core, condensation occurs because water derived from condensation does not easily enter the interior of the packaging body.
  • the quality of the PVA film can be maintained even in an easy environment, for example, in transportation conditions such as aircraft and ships where temperature changes drastically, or in a use environment after storage in a warehouse exposed to low temperatures.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Packaging Of Machine Parts And Wound Products (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Packages (AREA)
PCT/JP2012/060807 2011-04-28 2012-04-23 ポリビニルアルコール系重合体フィルムの包装体 WO2012147665A1 (ja)

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JP2012533806A JPWO2012147665A1 (ja) 2011-04-28 2012-04-23 ポリビニルアルコール系重合体フィルムの包装体
CN201280020677.0A CN103648927B (zh) 2011-04-28 2012-04-23 聚乙烯醇系聚合物薄膜的包装体

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WO2013103074A1 (ja) * 2012-01-04 2013-07-11 株式会社クラレ ポリビニルアルコールフィルムロールの包装体
JP2013227073A (ja) * 2012-03-30 2013-11-07 Kuraray Co Ltd フィルムロールの包装体
JP2015063396A (ja) * 2013-08-28 2015-04-09 日本合成化学工業株式会社 ポリビニルアルコール系フィルムロール及びそれを用いた偏光膜
WO2015156184A1 (ja) * 2014-04-07 2015-10-15 株式会社クラレ フィルムロール
WO2016056428A1 (ja) * 2014-10-10 2016-04-14 住友化学株式会社 電池用セパレータ捲回体のストック方法、電池用セパレータ捲回体の製造方法、電池用セパレータ捲回体の運搬方法、および運搬具
JP2017047974A (ja) * 2015-09-04 2017-03-09 日本合成化学工業株式会社 包装体、ポリビニルアルコール系フィルムの保管または輸送方法、ポリビニルアルコール系フィルム、および偏光膜

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CN105151562B (zh) * 2015-08-11 2018-07-20 中国乐凯集团有限公司 一种光学纤维素酯薄膜的包装方法
WO2017038940A1 (ja) * 2015-09-04 2017-03-09 日本合成化学工業株式会社 包装体、ポリビニルアルコール系フィルムの保管または輸送方法、ポリビニルアルコール系フィルム、および偏光膜
JP6912272B2 (ja) * 2016-05-26 2021-08-04 住友化学株式会社 多孔質セパレータ捲回体の包装体、その製造方法及び多孔質セパレータ捲回体の保管方法

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JP2016210509A (ja) * 2012-01-04 2016-12-15 株式会社クラレ ポリビニルアルコールフィルムロールの包装体
JPWO2013103074A1 (ja) * 2012-01-04 2015-05-11 株式会社クラレ ポリビニルアルコールフィルムロールの包装体
WO2013103074A1 (ja) * 2012-01-04 2013-07-11 株式会社クラレ ポリビニルアルコールフィルムロールの包装体
JP2013227073A (ja) * 2012-03-30 2013-11-07 Kuraray Co Ltd フィルムロールの包装体
JP2015063396A (ja) * 2013-08-28 2015-04-09 日本合成化学工業株式会社 ポリビニルアルコール系フィルムロール及びそれを用いた偏光膜
JP2019147692A (ja) * 2014-04-07 2019-09-05 株式会社クラレ フィルムロール及びその保管方法
KR20160141710A (ko) 2014-04-07 2016-12-09 주식회사 쿠라레 필름 롤
JPWO2015156184A1 (ja) * 2014-04-07 2017-04-13 株式会社クラレ フィルムロール
WO2015156184A1 (ja) * 2014-04-07 2015-10-15 株式会社クラレ フィルムロール
JP2021011390A (ja) * 2014-04-07 2021-02-04 株式会社クラレ フィルムロール及びその保管方法
JP7015894B2 (ja) 2014-04-07 2022-02-03 株式会社クラレ フィルムロールの保管方法
WO2016056428A1 (ja) * 2014-10-10 2016-04-14 住友化学株式会社 電池用セパレータ捲回体のストック方法、電池用セパレータ捲回体の製造方法、電池用セパレータ捲回体の運搬方法、および運搬具
JPWO2016056428A1 (ja) * 2014-10-10 2017-04-27 住友化学株式会社 電池用セパレータ捲回体のストック方法、電池用セパレータ捲回体の製造方法、および電池用セパレータ捲回体の運搬方法
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US10411235B2 (en) 2014-10-10 2019-09-10 Sumitomo Chemical Company, Limited Method for stocking battery separator roll, method for producing same, method for carrying same, and carrier for same
JP2017047974A (ja) * 2015-09-04 2017-03-09 日本合成化学工業株式会社 包装体、ポリビニルアルコール系フィルムの保管または輸送方法、ポリビニルアルコール系フィルム、および偏光膜
JP2020114758A (ja) * 2015-09-04 2020-07-30 三菱ケミカル株式会社 包装体、ポリビニルアルコール系フィルムの保管または輸送方法、ポリビニルアルコール系フィルム、および偏光膜

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CN103648927A (zh) 2014-03-19
TWI579211B (zh) 2017-04-21
KR101985980B1 (ko) 2019-06-04
TW201302569A (zh) 2013-01-16
JP2017074999A (ja) 2017-04-20
JP6220995B2 (ja) 2017-10-25
CN103648927B (zh) 2016-04-27
KR20140010063A (ko) 2014-01-23

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