WO2018100895A1 - Packaging body for film roll - Google Patents

Packaging body for film roll Download PDF

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Publication number
WO2018100895A1
WO2018100895A1 PCT/JP2017/036930 JP2017036930W WO2018100895A1 WO 2018100895 A1 WO2018100895 A1 WO 2018100895A1 JP 2017036930 W JP2017036930 W JP 2017036930W WO 2018100895 A1 WO2018100895 A1 WO 2018100895A1
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WO
WIPO (PCT)
Prior art keywords
film roll
film
packaging
roll
packaging material
Prior art date
Application number
PCT/JP2017/036930
Other languages
French (fr)
Japanese (ja)
Inventor
岳士 井上
田中 博文
崇 南條
尚行 最上
Original Assignee
コニカミノルタ株式会社
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 コニカミノルタ株式会社 filed Critical コニカミノルタ株式会社
Priority to KR1020217003435A priority Critical patent/KR102315163B1/en
Priority to KR1020197015205A priority patent/KR20190073499A/en
Priority to JP2018553698A priority patent/JP6962333B2/en
Priority to CN201780073492.9A priority patent/CN110023206A/en
Priority to CN202111091162.7A priority patent/CN113772276B/en
Publication of WO2018100895A1 publication Critical patent/WO2018100895A1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D61/00External frames or supports adapted to be assembled around, or applied to, articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D81/00Containers, 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
    • B65D81/38Containers, 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 with thermal insulation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D81/00Containers, 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
    • B65D81/38Containers, 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 with thermal insulation
    • B65D81/3888Containers, 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 with thermal insulation wrappers or flexible containers, e.g. pouches, bags
    • B65D81/389Containers, 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 with thermal insulation wrappers or flexible containers, e.g. pouches, bags formed of foam material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D85/00Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/66Containers, packaging elements or packages, specially adapted for particular articles or materials for jumbo rolls; for rolls of floor covering

Definitions

  • the present invention relates to a film roll packaging body in which a film roll is housed in a gantry and wrapped with a packing material.
  • the film roll is packed with packing materials and transported or stored in a warehouse. At this time, wrinkles may occur in the film roll due to thermal expansion due to a change in ambient temperature.
  • a film roll obtained by winding a laminated film obtained by laminating an optical film and a protective film in a roll shape is covered with a heat insulating sheet. The generation of wrinkles due to the thermal expansion of the material is suppressed.
  • JP 2010-221625 A (refer to claim 1, paragraphs [0006], [0009], [0015], FIG. 4, etc.)
  • the failure 101 is a chain-like deformation in which concave portions or convex portions having a substantially triangular shape in a plan view are connected in a chain shape in the circumferential direction of the film roll 100.
  • the inventor of the present application estimates the generation principle of the failure 101 as follows. That is, since the packaging body was exposed to the outdoors during the operation of carrying the packaging body from the container to the warehouse, the temperature of the packaging body suddenly rises, and thereby the film roll 100 inside the packaging body undergoes rapid thermal expansion. It is speculated that such rapid thermal expansion of the film roll 100 causes buckling deformation on the roll surface, and wrinkles generated by the buckling deformation appear as chain-like faults 101.
  • Patent Document 1 covers the outermost surface of the film roll with a heat insulating sheet, thereby causing a failure that occurs before and after the film roll is exposed outdoors, such as when the film roll is transported or stored, that is, over time. This is a chain-like failure that occurs when the package is exposed to the outdoors and suddenly increases in temperature, such as when carrying it into a warehouse. No reduction has been studied.
  • the present invention has been made in order to solve the above-described problem, and its purpose is that a chain-like failure (deformation) occurs in the film roll due to a rapid temperature rise due to the outdoor exposure of the package. It is providing the package body of the film roll which can reduce.
  • the film roll package according to one aspect of the present invention is a film roll that is a wound body obtained by winding a long optical film made of a thermoplastic resin around a core, and the film roll, A stand that can be held inside so that the outermost layer of the roll is in non-contact with the other via the winding core, has heat insulation, and covers the film roll vertically above or below vertically And a packaging material that wraps at least a part of the frame in the vertical direction so as to cover the film roll from the side.
  • heat insulation includes the effect which blocks
  • FIG. 1 It is a perspective view which shows the structure of the outline of the package body of the film roll which concerns on embodiment of this invention. It is a perspective view which shows the film roll and mount which comprise the said package. It is a perspective view which shows the external appearance of the said film roll. It is sectional drawing of the film roll by which the optical film was wound up by the straight winding. It is sectional drawing of the film roll by which the optical film was wound up by oscillate winding. It is a disassembled perspective view of the said mount. It is a side view of the said package. It is sectional drawing which shows the structure of the bubble buffering sheet which is an example of the packing material which packages the said mount frame. It is explanatory drawing which shows an example of the manufacturing method of the said package.
  • the numerical value range includes the values of the lower limit A and the upper limit B.
  • FIG. 1 is a perspective view showing a schematic configuration of a film roll packaging body (hereinafter also simply referred to as a packaging body) 1 of the present embodiment.
  • the package 1 includes a film roll 2, a gantry 3, and a covering member 4.
  • the covering member 4 is hatched for the purpose of clarifying the covering member 4 (in other drawings, hatching is indicated as necessary).
  • FIG. 2 is a perspective view showing the film roll 2 and the gantry 3 before packaging with the covering member 4, and FIG. 3 is a perspective view showing the appearance of the film roll 2.
  • the film roll 2 is a wound body obtained by winding a long optical film 10 made of a thermoplastic resin around a core 2a.
  • the thermoplastic resin for example, cellulose ester resin, cycloolefin resin, polyimide resin, polyarylate resin, or the like can be used.
  • the long optical film 10 is formed by, for example, a solution casting film forming method.
  • a dope containing a resin and a solvent is cast from a casting die onto a traveling support and dried on the support to form a casting film.
  • the cast film is peeled, stretched and dried to form a film, and both end portions in the width direction of the film are cut (trimmed), and then embossing is performed on both end portions in the width direction of the remaining film.
  • embossing pressing an embossing roll with irregularities engraved on the peripheral surface against both ends of the film causes the irregularities to be transferred to the film to form an embossed portion.
  • the film forming method of the optical film 10 is not necessarily limited to the above solution casting film forming method, and may be another film forming method (for example, melt casting film forming method).
  • FIG. 4 and 5 are cross-sectional views of the film roll 2.
  • FIG. 4 shows a cross-sectional view of the film roll 2 in which the optical film 10 is wound by straight winding
  • FIG. 5 shows the optical film 10 oscillated. Sectional drawing of the film roll 2 wound up by winding is shown. Note that straight winding is a method of winding the optical film 10 in the width direction without causing the optical film 10 to swing in the width direction, and oscillating winding is a method of swinging the optical film 10 in the width direction. It is a method of winding while.
  • the width W of the embossed part 11 may be 5% of the width W0 of the optical film 10, but is not limited to this value.
  • Each of the widths W and W0 is a length (mm) along the width direction of the film.
  • the embossed part 11 should just be formed in one place somewhere in the width direction of the optical film 10, and the number thereof is not particularly limited (although it may be two or more), Usually, it is formed in two places on both ends in the width direction.
  • FIG. 6 is an exploded perspective view of the gantry 3.
  • the gantry 3 is configured so that the film roll 2 can be held inside via the core 2a so that the outermost layer 2b of the film roll 2 is not in contact with the other.
  • the gantry 3 includes a frame body 31 and two support beams 32.
  • the side that supports the core 2a is “down”, “downward”, or “ The lower side is referred to as “upper”, “upper” or “upper”. Therefore, the vertical direction is the same as the vertical direction.
  • a direction perpendicular to the vertical direction is also referred to as a side.
  • the frame body 31 is a substantially rectangular parallelepiped frame as a whole (see FIG. 2), and is formed in a size that can accommodate the film roll 2 without protruding outside.
  • the frame body 31 includes an upper frame portion 31a, a lower frame portion 31b, and four support columns 31c.
  • the upper frame part 31a and the lower frame part 31b are frame-shaped frames along the long and short sides of a rectangle.
  • the upper frame portion 31a is positioned above the film roll 2 to be held, and the lower frame portion 31b is positioned below the film roll 2 to be held.
  • the corners (rectangular vertices) of the upper frame portion 31a and the corners (rectangular vertices) of the lower frame portion 31b are connected to each other via a support column 31c. That is, each column 31c connects the upper frame portion 31a and the lower frame portion 31b in the vertical direction.
  • a substantially rectangular parallelepiped frame (frame body 31) is configured.
  • One of the two support beams 32 is positioned horizontally (perpendicular to the column 31c) between the two columns 31c that connect the short sides of the upper frame unit 31a and the lower frame unit 31b.
  • the two struts 31c are connected.
  • the other of the two support beams 32 is horizontally between the two columns 31c connecting the remaining short sides of the upper frame portion 31a and the lower frame portion 31b (perpendicular to the column 31c).
  • the remaining two columns 31c are connected so as to be positioned.
  • the two support beams 32 are formed with recesses 32a cut into a semi-cylindrical shape so that the upper frame portion 31a side opens.
  • both ends of the core 2a of the film roll 2 enter the concave portions 32a of the support beams 32, whereby the core 2a is fixed to the support beams 32, and the film roll 2 is stably supported.
  • a pivotable lid member is provided on the support beam 32, and after the core 2a enters the recess 32a, the recess 32a is covered with a lid member to prevent the core 2a from falling off the recess 32a. Also good.
  • the gantry 3 is not limited to the above configuration and shape.
  • the gantry 3 may be configured to be detachable by separating (detaching) part of the frame body 31 and the support beam 32.
  • the gantry 3 may have a shape in which a part of the rectangular parallelepiped shape is rounded.
  • the covering member 4 shown in FIG. 1 is a member that covers the gantry 3 to cover the film roll 2 inside the gantry 3 in a non-contact manner with the outermost layer 2b. Since the gantry 3 is a substantially rectangular parallelepiped frame, the covering member 4 covering the gantry 3 has a shape along the outer surface of the cuboid. That is, the covering member 4 includes an upper surface portion 4a and a lower surface portion 4b that face each other with the film roll 2 interposed therebetween, and four side surface portions 4c.
  • the upper surface portion 4a is a surface that covers the upper frame portion 31a (see FIG. 6) of the frame body 31, and is formed in a substantially rectangular shape with the side edges positioned along the upper frame portion 31a.
  • the lower surface portion 4b is a surface that covers the lower frame portion 31b (see FIG. 6) of the frame body 31, and is formed in a substantially rectangular shape with the side edges positioned along the lower frame portion 31b.
  • the four side surface parts 4c connect the outer edges (each side) of the substantially rectangular upper surface part 4a and lower surface part 4b, and are formed in a quadrangular shape.
  • the covering member 4 includes a packaging material 41 having a heat insulating property and a transparent sheet 42. More specifically, as shown in FIG. 1, in the covering member 4, the upper surface portion 4 a and a part of the side surface portion 4 c in the height direction (the facing direction between the upper surface portion 4 a and the lower surface portion 4 b, the vertical direction) However, it is comprised by the packaging material 41 which has heat insulation, and the lower surface part 4b and the remaining part of the height direction of the side part 4c are comprised by the transparent sheet 42.
  • the upper surface portion 4a of the covering member 4 and the entire side surface portion 4c may be configured by the packing material 41, and only the lower surface portion 4b may be configured by the transparent sheet 42.
  • the ratio of the area occupied by the packing material 41 to the total area of the four side surface parts 4c is defined as a coverage rate P.
  • the coverage P is the length of the side surface portion 4 c of the covering member 4 in the opposing direction of the upper surface portion 4 a and the lower surface portion 4 b, that is, the vertical length of the gantry 3 covered with the covering member 4.
  • H (mm) the length in the facing direction of the portion constituted by the packing material 41 in the side surface portion 4c, that is, the vertical direction of the packing material 41 for packaging at least a part of the vertical direction of the gantry 3
  • the length is defined by the following formula, where X (mm).
  • the coverage P may be set as appropriate in the range of greater than 0% and not greater than 100%.
  • P (%) (X / H) ⁇ 100
  • a part of upper surface part 4a and the side part 4c is comprised with the packing material 41
  • a part of upper surface part 4a and the side part 4c as the packing material 41 may be connected, or it is isolate
  • a part of the lower surface part 4b and the side surface part 4c is configured by the packing material 41
  • a part of the lower surface part 4b and the side surface part 4c as the packing material 41 may be connected or separated. May be.
  • the packaging material 41 having heat insulation properties for example, an opaque member that absorbs or blocks light and heat can be used.
  • a metal sheet such as aluminum foil, a paper sheet including cardboard-like cardboard or thin wrapping paper, a resin sheet obtained by mixing a transparent pigment with a color pigment (for example, carbon black), cloth, wood, or the like is used as the packing material 41. be able to.
  • Bubble cushioning sheet 41a includes two polyethylene-made sheet 41a 1 ⁇ 41a 2, bonded to a myriad of bubbles between them (the air layer) 41a 3 is formed, buffered by the presence of bubbles 41a 3 It is a sheet that has a character.
  • the packaging material 41 can be configured by appropriately combining the above-described materials.
  • the packing material 41 can be configured by bonding a bubble cushioning sheet and a metal sheet, and the packing material 41 can also be configured by bonding a resin sheet and a metal sheet.
  • the transparent sheet 42 constitutes a part other than the packing material 41 in the covering member 4.
  • the transparent sheet 42 is not particularly limited as long as it is a transparent resin sheet.
  • a transparent resin sheet manufactured using polyvinylidene chloride (PVDC), polyvinyl chloride (PVC), low density polyethylene (PE, LDPE), or the like as a raw material can be used as the transparent sheet 42.
  • the manufacturing method of the package 1 is demonstrated.
  • a metal sheet is used as the packaging material 41 and a transparent resin sheet made of polyethylene is used as the transparent sheet 42
  • the packaging body 1 is covered with the packaging material 41 and the transparent sheet 42 as follows. Can be obtained.
  • illustration of the support beam 32a of the mount frame 3 and the film roll 2 is omitted for convenience, but it is assumed that the film roll 2 is supported on the mount frame 3 by the support beam 32a ( The same applies to the subsequent drawings).
  • FIG. 9 is an explanatory diagram showing an example of a method for manufacturing the package 1 according to the present embodiment.
  • the lower frame portion 31b of the gantry 3 is covered with the transparent sheet 42 and fixed with an adhesive or a tape.
  • the transparent sheet 42 is wound around the lower half of the four columns 31c (the lower frame portion 31b side with respect to the center in the height direction) in order and fixed with an adhesive or the like.
  • the upper frame portion 31a of the gantry 3 is covered with the packing material 41, and these are fixed with an adhesive or the like.
  • the entire frame 3 is covered with the transparent sheet 42, or the upper frame portion 31a and the entire four columns 31c are covered, and then the upper frame portion 31a and the four columns are covered with the packing material 41 (for example, a metal sheet). You may make it cover a part of the height direction of 31c. In this case, although the transparent sheet 42 is located inside the packing material 41, the portion other than the packing material 41 in the covering member 4 is still the transparent sheet 42.
  • the transparent sheet 42 is located inside the packing material 41, the portion other than the packing material 41 in the covering member 4 is still the transparent sheet 42.
  • FIG. 10 is an explanatory view showing another manufacturing method of the package 1.
  • the package 1 may be manufactured as follows. That is, the transparent sheet 42 is attached with an adhesive or the like so as to cover the lower frame portion 31 b of the gantry 3, and notches 42 ⁇ / b> P are formed at the four corners of the transparent sheet 42. Then, the transparent sheet 42 protruding from the lower frame portion 31b is bent along the lower frame portion 31b and fixed to the column 31c with an adhesive or the like. Next, the packaging material 41 is affixed with an adhesive or the like so as to cover the upper frame portion 31 a of the gantry 3, and notches 41 ⁇ / b> P are formed at the four corners of the packaging material 41. Then, the packing material 41 protruding from the upper frame portion 31a is bent along the upper frame portion 31a and fixed to the column 31c with an adhesive or the like. Thereby, the package 1 is completed.
  • FIG. 11 is an explanatory view showing still another manufacturing method of the package 1.
  • a lid portion 41b obtained by bending cardboard or other thick paper into a lid shape in advance may be used.
  • the transparent sheet 42 after winding the transparent sheet 42 so as to cover the lower half (including the lower frame portion 31b) of the pedestal 3 and fixing them with an adhesive or the like, the lid portion 41b is put on the pedestal 3 from the upper frame portion 31a side.
  • the package 1 can be obtained.
  • a part of the covering member 4 that covers the film roll 2 by covering the gantry 3 is composed of the packing material 41 having heat insulation.
  • the packing material 41 having heat insulation.
  • the outermost layer 2b of the film roll 2 and the packing material 41 are not in contact with each other, and a gap layer exists between them. Since air has an extremely low thermal conductivity, the effect of preventing the transfer of external heat to the film roll 2 is further increased.
  • it is a part of the covering member 4 that is constituted by the packing material 41 having heat insulation properties even if heat is accumulated inside the covering member 4, the heat is transferred to the rest of the covering member 4. It can also be diffused (heat radiation) to the outside through a portion (transparent sheet 42 other than the packing material 41).
  • the film roll 2 inside the packaging body 1 is prevented from suddenly rising in temperature. Can do. Thereby, the thermal expansion of the film roll 2 can be suppressed, and occurrence of a chain-like failure due to the thermal expansion can be reduced.
  • the coverage P of the packaging material 41 defined by the above definition when the coverage P of the packaging material 41 defined by the above definition is increased, the area of the portion (transparent sheet 42) other than the packaging material 41 is reduced in the side surface portion 4 c.
  • the heat dissipation when the heat trapped inside 4 is released through the transparent sheet 42 is reduced.
  • the coverage P is preferably 50% or less.
  • the covering rate P of the packing material 41 is less than 10%, the effect of blocking external heat by the packing material 41 having heat insulation is reduced in the side surface portion 4c.
  • the coverage P is preferably 10% or more and 50% or less.
  • the film roll 2 is a wound body in which only one type of optical film 10 is wound and laminated.
  • the cost can be reduced because the protective film is not used.
  • the step of peeling off the protective film is unnecessary, so that the number of steps can be reduced and the manufacturing process can be simplified.
  • coated member 4 are comprised with the transparent sheet 42.
  • the transparent sheet 42 can also protect the film roll 2 from external rain and dust.
  • FIG. 12 is a perspective view showing another configuration of the packing body 1 of the present embodiment.
  • the positional relationship between the packing material 41 having heat insulation and the transparent sheet 42 in the packing body 1 may be opposite to the configuration in FIG. 1. That is, the lower surface portion 4b of the covering member 4 and a part of the side surface portion 4c on the lower surface portion 4b side may be configured by the packing material 41 having heat insulation properties.
  • the upper surface portion 4 a of the covering member 4 and the remaining portion (upper surface portion 4 a side) of the side surface portion 4 c are configured by the transparent sheet 42.
  • the upper surface portion 4a or the lower surface portion 4b of the covering member 4 and at least a part of the side surface portion 4c in the height direction (opposite direction of the upper surface portion 4a and the lower surface portion 4b) are thermally insulating.
  • the area covered with the packing material 41 is increased, and the heat shielding effect is obtained. It gets even higher. Therefore, in the film roll 2, the effect of reducing chain-like failure due to thermal expansion can be reliably obtained.
  • the packaging material 41 which comprises the upper surface part 4a or the lower surface part 4b, and the at least one part of the vertical direction of the side part 4c by packaging the mount frame 3 can be expressed as follows. That is, the packaging material 41 having heat insulation wraps the gantry 3 so as to cover the vertical upper side or the vertical lower side of the film roll 2, and covers at least a part of the vertical direction of the gantry 3 from the side. Packaging as
  • FIG. 13 is a perspective view showing still another configuration of the packing body 1 with the gantry 3 and the covering member 4 omitted.
  • the package 1 may further include a packaging material 5.
  • the packaging material 5 is a sheet that covers the outermost layer 2b of the film roll 2 in at least a part of the core direction of the film roll 2 (the direction in which the core 2a extends).
  • the bubble cushioning sheet 41a shown in FIG. Or it can be comprised with the sheet
  • the packaging material 5 By covering the outermost layer 2 b of the film roll 2 with the packaging material 5, heat from the outside can be blocked or absorbed immediately before the film roll 2, and heat transfer to the film roll 2 can be prevented. Therefore, by using the packaging material 5 together with the packaging material 41, the effect of suppressing the rapid temperature rise of the film roll 2 due to external heat can be further enhanced. In the film roll 2, a chain-like shape caused by thermal expansion can be achieved. The effect of reducing failures can be further enhanced.
  • the thickness of the packaging material 5 is desirably thicker than the thickness of the packaging material 41 of the covering member 4. In this case, even if external heat reaches the packaging material 5 via the packaging material 41, the heat can be reliably blocked by the thickness of the packaging material 5. Therefore, not only the chain-like failure but also elastic deformation of the film roll 2 due to heat can be suppressed.
  • the lower frame portion 31b may be integrated with the metal plate to form the lower surface portion.
  • the covering member 4 does not need to cover the lower surface portion of the gantry 3 and can be configured by only the upper surface portion 4a and the four side surface portions 4c described above. From this, it can be said that the covering member 4 only needs to cover the film roll 2 in a non-contact manner with the outermost layer 2 b by covering at least a part of the gantry 3.
  • a film roll was prepared by winding a cellulose triacetate film (TAC film, width 1300 mm, film thickness 40 ⁇ m) as a long optical film around a core. That is, the said film roll is a winding body only of 1 type of optical films called a TAC film (winding length is 4000 m).
  • This film roll was accommodated in a gantry having the same structure as in FIG. 2 so that the outermost layer of the roll was not in contact with other members (for example, the gantry) (the core of the film roll was supported by the gantry).
  • the film roll was accommodated in the mount frame here, without covering the outermost layer of a film roll with a packaging material (heat insulation sheet).
  • a packaging material a metal sheet (made by Nippon Matai Co., Ltd., thickness 30 ⁇ m) is used.
  • the platform is packaged with the packaging material so as to cover the vertical upper side of the film roll accommodated in the platform, and the packaging material is taped. Fixed.
  • a transparent sheet (thickness 50 ⁇ m) made of low-density polyethylene is used as the transparent sheet, and the frame is wrapped with the transparent sheet so as to cover the film roll vertically from below and surround the film roll from the side.
  • the package 1 was prepared. Note that the packaging order of the packaging material and the transparent sheet may be reversed.
  • the covering rate P of the packing material defined by the above formula is 0. %.
  • a packaging body 2 was produced in the same manner as the packaging body 1 except that the base was wrapped with a packaging material so as to cover the film roll from the side in addition to the upper side of the film roll. At this time, the upper half of the gantry was packaged with the packing material so that the coverage P with the packing material on the side surface was 50%. In addition, the part which is not packaged with the said packing material in the mount frame (lower half of the mount frame) was packaged with the same sheet as the transparent sheet used in the production of the package 1.
  • a packaging body 3 was produced in the same manner as the packaging body 1 except that the frame roll was covered with a packaging material so as to cover the film roll from the side in addition to the upper side of the film roll. At this time, the whole area in the vertical direction of the gantry was packaged with the packing material so that the coverage P with the packing material on the side surface was 100%. In addition, the part (vertically downward of a film roll) which is not packaged with the said packaging material in a mount was packaged with the same sheet
  • the package 4 was produced in the same manner as the production.
  • the coverage P of the packing material defined by the above formula is 0. %.
  • a packaging body 5 was produced in the same manner as the packaging body 4 except that the mount was wrapped with a packaging material so as to cover the film roll from the side. At this time, the lower half of the gantry was packaged with the packaging material so that the coverage P with the packaging material on the side surface was 50%. In addition, the part (upper half of the gantry) that was not wrapped with the packaging material in the gantry was packaged with the same sheet as the transparent sheet used in the production of the packaging body 4.
  • a packaging body 6 was produced in the same manner as the packaging body 4 except that the frame was covered with a packaging material so as to cover the film roll from the side. At this time, the whole area in the vertical direction of the gantry was packaged with the packing material so that the coverage P with the packing material on the side surface was 100%. In addition, the part (vertical upper direction of a film roll) which is not packaged with the said packing material in a mount was packaged with the same sheet
  • a packaging material was wound around the outermost layer of the film roll used in the production of the package 1, and the film roll was housed in a gantry. And this mount was wrapped only with a transparent sheet, and the package 8 was produced.
  • a heat insulating sheet made by Kawakami Sangyo Co., Ltd., thickness: 3.5 mm
  • the transparent sheet the same sheet as the transparent sheet used in the production of the package 1 was used.
  • Table 1 shows the results of evaluation for the packing bodies 1 to 8. Table 1 also shows the correspondence between the packing bodies 1 to 8 and the examples or comparative examples.
  • “upper”, “lower”, and “horizontal” indicate positions that cover the upper side, the lower side, and the side of the film roll, respectively. However, the same notation is adopted.
  • Example 1 to 4 no chain-like deformation was confirmed in the outermost layer of the film roll.
  • the gantry is covered with a packaging material having heat insulating properties so as to cover the upper side or the lower side of the film roll and the side of the film roll. Since there is a void layer that suppresses heat transfer between the film roll and the film roll, the synergistic effect increases the heat insulation and suppresses the rapid temperature rise of the film roll. This is thought to be due to the suppression of deformation.
  • Comparative Example 3 since the mount is not covered with a heat-insulating packing material, it is considered that a rapid temperature increase of the film roll occurs and chain-like deformation occurs due to thermal expansion.
  • Comparative Example 4 the outermost layer of the film roll is covered with a heat-insulating packaging material. As a result, chain-like deformation occurs due to thermal expansion. For this reason, simply covering the outermost layer of the roll with the packaging material does not ensure a sufficient space for suppressing heat transfer between the outermost layer of the roll and the packaging material. It can be said that the suppressing effect is small.
  • Packaging bodies 10 to 15 were produced in the same manner as for the packaging body 1 except that the base was wrapped with a packaging material so as to cover the film roll from the side in addition to the upper side of the film roll. At this time, at least a part of the gantry in the vertical direction was packaged with the packaging material so that the coverage P with the packaging material on the side surface became the value shown in Table 2, thereby producing packaging bodies 10 to 15. In addition, the part which is not packaged with the said packing material in a mount was packaged with the same sheet
  • Table 2 shows the results of evaluation for packing bodies 9-15. Table 2 also shows the correspondence between the packing bodies 9 to 15 and the examples or comparative examples.
  • the coverage P particularly affects the elastic deformation of the roll when the package is exposed outdoors and then returned to the room. If the coverage P is 10% or more and 50% or less, it depends on the packaging material. It can be said that the effect of suppressing the elastic deformation is high by obtaining a good balance between the heat insulation effect and the heat radiation effect by the transparent sheet.
  • ⁇ Preparation of packing 16> The outermost layer of the film roll used in the production of the package 1 was covered with a packaging material (heat insulating sheet), and in this state, the film roll was accommodated in the gantry of FIG.
  • a packaging material heat insulating sheet
  • a metal sheet manufactured by Nippon Matai Co., Ltd., thickness 30 ⁇ m
  • Packaging bodies 17 and 19 were produced in the same manner as the packaging body 16 except that the thickness of the packaging material and the thickness of the packaging material were changed as shown in Table 3. Moreover, it carried out similarly to preparation of the package 11 mentioned above, and produced the package 18 which has not covered the outermost layer of the film roll with the packaging material.
  • Table 3 shows the results of evaluation for the packing bodies 16-19. Table 3 also shows the correspondence between the packing bodies 16 to 19 and the examples or comparative examples.
  • the temperature rise of the roll was suppressed 60 minutes, 90 minutes, and 120 minutes after being exposed to the outdoors, and the chain-like deformation was not seen.
  • the thickness of the packaging material is equal to or less than the thickness of the packaging material, it can be seen that the temperature of the roll rises and the elastic deformation tends to occur as the time of outdoor exposure increases. This is presumably because if the thickness of the packaging material is thin, the heat insulating effect of the packaging material is lowered, and the temperature of the roll is likely to increase. Therefore, it can be said that the thickness of the packaging material is desirably larger than the thickness of the packaging material in terms of suppressing the elastic deformation of the roll.
  • the heat insulating sheet (bubble cushion sheet with a metal film) used in the production of the packaging body 8 was used, and the thickness of the packaging material and the packaging material was changed in the same manner as the packaging bodies 16 to 19, When the roll temperature after outdoor exposure and the presence or absence of deformation were confirmed in the same manner as described above, the same results as in Table 3 were obtained.
  • a TAC film is used as an optical film constituting the film roll.
  • an optical film is formed using a cellulose ester resin, a cycloolefin resin, a polyimide resin, a polyarylate resin, etc. other than TAC. And even when the optical film was wound and the film roll was comprised and it combined with the mount frame and the packaging material, it was confirmed that there exists a tendency similar to the Example mentioned above.
  • the film roll package of the present embodiment described above can be expressed as follows.
  • a film roll which is a wound body in which a long optical film made of a thermoplastic resin is wound around a core;
  • a stand that can be held inside the film roll via the winding core so that the outermost layer of the roll is in non-contact with the other;
  • Packaging that has heat insulation and wraps the gantry so as to cover vertically above or vertically below the film roll, and wraps at least part of the gantry vertically so as to cover the film roll from the side.
  • a roll of film rolls characterized by comprising a material.
  • the present invention can be used for a film roll packaging body in which a film roll is accommodated inside a gantry and the gantry is packaged by a packing material.

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Abstract

A packaging body (1) is provided with a film roll (2), a mount (3), and a packaging material (41). The film roll (2) is a wound body in which an elongated optical film comprising a thermoplastic resin is wound around a winding core (2a). The mount (3) is capable of holding the film roll (2) in the interior of the mount (3) via the winding core (2a), so that the outermost layer (2b) of the film roll (2) is not in contact with anything else. The packaging material (41) has heat-insulating properties, encases the mount (3) so as to cover vertically above or below the film roll (2), and encases at least a part of the mount (3) in the vertical direction so as to cover the film roll (2) from the sides.

Description

フィルムロールの梱包体Film roll packaging
 本発明は、フィルムロールを架台に収容して梱包材で包装したフィルムロールの梱包体に関するものである。 The present invention relates to a film roll packaging body in which a film roll is housed in a gantry and wrapped with a packing material.
 近年、表示装置の薄型化に伴い、偏光板に搭載される光学フィルムの薄膜化が要望されている。薄膜の光学フィルムは、長尺状で製膜された後、ロール状に巻き取られてフィルムロールとなるが、薄膜であるために、ブロッキング(積層されるフィルム同士の貼り付き)や重みによる巻形状の変形が生じやすくなる。このため、光学フィルムの幅手端部に形成されるエンボス(凹凸部)の形状を工夫したり、光学フィルムの巻き取り方法を、ストレート巻き(幅手端部を揃えて光学フィルムを巻き取る方式)からオシレート巻き(幅手端部を巻芯方向に揺動させながら光学フィルムを巻き取る方式)に変える、などの対策が施されている。 In recent years, with the thinning of display devices, there has been a demand for thinner optical films mounted on polarizing plates. A thin optical film is formed into a long film, and then wound into a roll to form a film roll. However, since it is a thin film, it is blocked (attached between laminated films) or wound by weight. Shape deformation tends to occur. For this reason, the shape of the embossing (uneven portion) formed at the wide end of the optical film is devised, or the optical film winding method is straight winding (the optical film is wound with the wide end aligned. ) To oscillate winding (a method of winding an optical film while swinging the width end portion in the direction of the core).
 上記フィルムロールは、梱包材で梱包されて輸送されたり、倉庫に保管される。このとき、周囲の温度変化による熱膨張に起因して、フィルムロールに皺が発生することがある。そこで、例えば特許文献1では、光学フィルムと保護フィルムとを積層した積層フィルムをロール状に巻き取ったフィルムロールの表面の少なくとも一部を断熱シートで覆うことにより、フィルムロールにおいて、輸送や保管時の熱膨張に起因する皺の発生を抑えるようにしている。 The film roll is packed with packing materials and transported or stored in a warehouse. At this time, wrinkles may occur in the film roll due to thermal expansion due to a change in ambient temperature. Thus, for example, in Patent Document 1, at least a part of the surface of a film roll obtained by winding a laminated film obtained by laminating an optical film and a protective film in a roll shape is covered with a heat insulating sheet. The generation of wrinkles due to the thermal expansion of the material is suppressed.
特開2010-221625号公報(請求項1、段落〔0006〕、〔0009〕、〔0015〕、図4等参照)JP 2010-221625 A (refer to claim 1, paragraphs [0006], [0009], [0015], FIG. 4, etc.)
 ところで、フィルムロールの梱包体を、コンテナに格納して輸送した後、コンテナから倉庫に搬入し、梱包体内部のフィルムロールの状態を確認したところ、図14に示すように、フィルムロール100の最表層100aに故障101が発生していることが確認された。上記故障101は、平面視で略三角形状をした凹部または凸部がフィルムロール100の周方向にチェーン状につながったチェーン状の変形である。故障101の発生原理については、本願発明者は以下のように推測している。すなわち、コンテナから倉庫への梱包体の搬入作業時に、梱包体が屋外に曝露されたため、梱包体の温度が急激に上昇し、これによって、梱包体内部のフィルムロール100が急激に熱膨張する。このようなフィルムロール100の急激な熱膨張が、ロール表面に座屈変形を生じさせ、この座屈変形によって生じた皺がチェーン状の故障101となって現れたものと推測している。 By the way, after the package of film rolls is stored in a container and transported, it is carried into the warehouse from the container and the state of the film roll inside the package is confirmed. As shown in FIG. It was confirmed that the failure 101 occurred in the surface layer 100a. The failure 101 is a chain-like deformation in which concave portions or convex portions having a substantially triangular shape in a plan view are connected in a chain shape in the circumferential direction of the film roll 100. The inventor of the present application estimates the generation principle of the failure 101 as follows. That is, since the packaging body was exposed to the outdoors during the operation of carrying the packaging body from the container to the warehouse, the temperature of the packaging body suddenly rises, and thereby the film roll 100 inside the packaging body undergoes rapid thermal expansion. It is speculated that such rapid thermal expansion of the film roll 100 causes buckling deformation on the roll surface, and wrinkles generated by the buckling deformation appear as chain-like faults 101.
 しかし、従来、梱包体が屋外に曝露され、急激な温度上昇が生じることで発生する上記チェーン状の故障101を低減するための梱包体の構成については一切検討されていない。 However, conventionally, the structure of the package for reducing the chain-like failure 101 that occurs when the package is exposed to the outdoors and a sudden temperature rise occurs has not been studied at all.
 なお、上述した特許文献1は、フィルムロールの最表面を断熱シートで覆うことによって、フィルムロールの輸送時や保管時などの、フィルムロールが屋外に曝露される前後で生じる故障、すなわち、経時的に見て緩やかな温度上昇のもとで生じる故障を低減するものであり、倉庫への搬入作業時など、梱包体が屋外に曝露されて急激な温度上昇が生じることで発生するチェーン状の故障の低減については一切検討されていない。 In addition, the above-described Patent Document 1 covers the outermost surface of the film roll with a heat insulating sheet, thereby causing a failure that occurs before and after the film roll is exposed outdoors, such as when the film roll is transported or stored, that is, over time. This is a chain-like failure that occurs when the package is exposed to the outdoors and suddenly increases in temperature, such as when carrying it into a warehouse. No reduction has been studied.
 本発明は、上記の問題を解決するためになされたものであって、その目的は、梱包体の屋外への曝露による急激な温度上昇によって、フィルムロールにチェーン状の故障(変形)が生じるのを低減することができるフィルムロールの梱包体を提供することにある。 The present invention has been made in order to solve the above-described problem, and its purpose is that a chain-like failure (deformation) occurs in the film roll due to a rapid temperature rise due to the outdoor exposure of the package. It is providing the package body of the film roll which can reduce.
 本発明の上記目的は、以下の構成によって達成される。 The above object of the present invention is achieved by the following configuration.
 すなわち、本発明の一側面に係るフィルムロールの梱包体は、熱可塑性樹脂からなる長尺状の光学フィルムを巻芯の周りに巻回した巻回体であるフィルムロールと、前記フィルムロールを、前記巻芯を介して、該ロールの最表層が他と非接触となるように、内部に保持することのできる架台と、断熱性を有し、前記フィルムロールの鉛直上方または鉛直下方を覆うように前記架台を包装するとともに、前記架台の鉛直方向の少なくとも一部を、前記フィルムロールを側方から覆うように包装する梱包材とを備えている。 That is, the film roll package according to one aspect of the present invention is a film roll that is a wound body obtained by winding a long optical film made of a thermoplastic resin around a core, and the film roll, A stand that can be held inside so that the outermost layer of the roll is in non-contact with the other via the winding core, has heat insulation, and covers the film roll vertically above or below vertically And a packaging material that wraps at least a part of the frame in the vertical direction so as to cover the film roll from the side.
 上記の構成によれば、フィルムロールを内部に保持する架台の少なくとも一部が、断熱性(本発明において断熱性とは、熱伝導の阻害及び、熱放射、熱輻射を遮る効果を含む)を有する梱包材で包装されている。また、フィルムロールは、最表層が他と非接触となるように架台の内部で保持されており、架台を覆う梱包材とフィルムロールとの間には、空隙層が存在する。梱包材が断熱性を有していることと、上記空隙層が断熱機能を発揮することから、フィルムロールを含む梱包体が屋外に曝露されても、梱包体内部のフィルムロールに急激な温度上昇が生じるのを抑えることができる。これにより、フィルムロールにおいて、熱膨張に起因するチェーン状の故障(変形)が発生するのを低減することができる。 According to said structure, at least one part of the mount frame which hold | maintains a film roll inside has heat insulation (In this invention, heat insulation includes the effect which blocks | prevents heat conduction and shields thermal radiation and heat radiation). It is packaged with the packaging material it has. Further, the film roll is held inside the gantry so that the outermost layer is not in contact with the others, and a gap layer exists between the packaging material covering the gantry and the film roll. Since the packaging material has heat insulation properties and the gap layer exhibits a heat insulation function, even if the packaging body including the film roll is exposed to the outdoors, the film roll inside the packaging body has a sudden temperature rise. Can be suppressed. Thereby, in a film roll, it can reduce that the chain-like failure (deformation) resulting from a thermal expansion generate | occur | produces.
本発明の実施の形態に係るフィルムロールの梱包体の概略の構成を示す斜視図である。It is a perspective view which shows the structure of the outline of the package body of the film roll which concerns on embodiment of this invention. 上記梱包体を構成するフィルムロールおよび架台を示す斜視図である。It is a perspective view which shows the film roll and mount which comprise the said package. 上記フィルムロールの外観を示す斜視図である。It is a perspective view which shows the external appearance of the said film roll. 光学フィルムがストレート巻きによって巻き取られたフィルムロールの断面図である。It is sectional drawing of the film roll by which the optical film was wound up by the straight winding. 光学フィルムがオシレート巻きによって巻き取られたフィルムロールの断面図である。It is sectional drawing of the film roll by which the optical film was wound up by oscillate winding. 上記架台の分解斜視図である。It is a disassembled perspective view of the said mount. 上記梱包体の側面図である。It is a side view of the said package. 上記架台を包装する梱包材の一例である気泡緩衝シートの構成を示す断面図である。It is sectional drawing which shows the structure of the bubble buffering sheet which is an example of the packing material which packages the said mount frame. 上記梱包体の製造方法の一例を示す説明図である。It is explanatory drawing which shows an example of the manufacturing method of the said package. 上記梱包体の他の製造方法を示す説明図である。It is explanatory drawing which shows the other manufacturing method of the said package. 上記梱包体のさらに他の製造方法を示す説明図である。It is explanatory drawing which shows the further another manufacturing method of the said package. 上記梱包体の他の構成を示す斜視図である。It is a perspective view which shows the other structure of the said package. 上記梱包体のさらに他の構成を、架台および被覆部材の図示を省略して示す斜視図である。It is a perspective view which abbreviate | omits illustration of a mount frame and a coating | coated member about the other structure of the said package. 最表層にチェーン状の故障が発生したフィルムロールの斜視図である。It is a perspective view of the film roll which the chain-like failure generate | occur | produced in the outermost layer.
 本発明の実施の一形態について、図面に基づいて説明すれば以下の通りである。なお、本明細書において、数値範囲をA~Bと表記した場合、その数値範囲に下限Aおよび上限Bの値は含まれるものとする。 An embodiment of the present invention will be described below with reference to the drawings. In this specification, when the numerical range is expressed as A to B, the numerical value range includes the values of the lower limit A and the upper limit B.
 〔フィルムロールの梱包体の構成〕
 図1は、本実施形態のフィルムロールの梱包体(以下、単に梱包体とも称する)1の概略の構成を示す斜視図である。梱包体1は、フィルムロール2と、架台3と、被覆部材4とを備えている。なお、図1では、被覆部材4を明確にする目的で、被覆部材4にハッチングを付している(他の図面でも必要に応じてハッチングを付して示す)。
[Composition of film roll packaging]
FIG. 1 is a perspective view showing a schematic configuration of a film roll packaging body (hereinafter also simply referred to as a packaging body) 1 of the present embodiment. The package 1 includes a film roll 2, a gantry 3, and a covering member 4. In FIG. 1, the covering member 4 is hatched for the purpose of clarifying the covering member 4 (in other drawings, hatching is indicated as necessary).
 図2は、被覆部材4で包装する前のフィルムロール2および架台3を示す斜視図であり、図3は、フィルムロール2の外観を示す斜視図である。フィルムロール2は、熱可塑性樹脂からなる長尺状の光学フィルム10を巻芯2aの周りに巻回した巻回体である。熱可塑性樹脂としては、例えばセルロースエステル樹脂、シクロオレフィン樹脂、ポリイミド樹脂、ポリアリレート樹脂などを用いることができる。 FIG. 2 is a perspective view showing the film roll 2 and the gantry 3 before packaging with the covering member 4, and FIG. 3 is a perspective view showing the appearance of the film roll 2. The film roll 2 is a wound body obtained by winding a long optical film 10 made of a thermoplastic resin around a core 2a. As the thermoplastic resin, for example, cellulose ester resin, cycloolefin resin, polyimide resin, polyarylate resin, or the like can be used.
 長尺状の光学フィルム10は、例えば溶液流延製膜法で製膜される。溶液流延製膜法では、樹脂および溶媒を含むドープを流延ダイから、走行する支持体上に流延し、支持体上で乾燥させて流延膜を形成する。そして、流延膜を剥離して延伸、乾燥させてフィルムとし、フィルムの幅手方向の両端部を切断(トリミング)した後に、残ったフィルムの幅手方向の両端部にエンボス加工を行う。エンボス加工では、周面に凹凸が刻印されたエンボスロールをフィルムの両端部に押し付けることにより、フィルムに凹凸が転写されてエンボス部が形成される。このようにして製膜されたフィルムは、最終的に巻芯に巻き取ってロール状の光学フィルム(フィルムロール)となる。なお、光学フィルム10の製膜方法は上記の溶液流延製膜法に限定されるわけではなく、他の製膜方法(例えば溶融流延製膜法)であってもよい。 The long optical film 10 is formed by, for example, a solution casting film forming method. In the solution casting film forming method, a dope containing a resin and a solvent is cast from a casting die onto a traveling support and dried on the support to form a casting film. Then, the cast film is peeled, stretched and dried to form a film, and both end portions in the width direction of the film are cut (trimmed), and then embossing is performed on both end portions in the width direction of the remaining film. In embossing, pressing an embossing roll with irregularities engraved on the peripheral surface against both ends of the film causes the irregularities to be transferred to the film to form an embossed portion. The film thus formed is finally wound on a core to become a roll-shaped optical film (film roll). In addition, the film forming method of the optical film 10 is not necessarily limited to the above solution casting film forming method, and may be another film forming method (for example, melt casting film forming method).
 図4および図5は、フィルムロール2の断面図であって、図4は、光学フィルム10がストレート巻きによって巻き取られたフィルムロール2の断面図を示し、図5は、光学フィルム10がオシレート巻きによって巻き取られたフィルムロール2の断面図を示している。なお、ストレート巻きとは、光学フィルム10を幅手方向に揺動させずに、幅手端部を揃えて巻き取る方法であり、オシレート巻きとは、光学フィルム10を幅手方向に揺動させながら巻き取る方法である。 4 and 5 are cross-sectional views of the film roll 2. FIG. 4 shows a cross-sectional view of the film roll 2 in which the optical film 10 is wound by straight winding, and FIG. 5 shows the optical film 10 oscillated. Sectional drawing of the film roll 2 wound up by winding is shown. Note that straight winding is a method of winding the optical film 10 in the width direction without causing the optical film 10 to swing in the width direction, and oscillating winding is a method of swinging the optical film 10 in the width direction. It is a method of winding while.
 これらの図に示すように、光学フィルム10の幅手方向(巻芯に沿う方向)の両端には、上記したエンボス加工により、凹凸状のエンボス部11が形成されている。これにより、フィルムロール2における上下の光学フィルム10の貼り付き(ブロッキング)および光学フィルム10の巻芯方向のズレを抑えることが可能となる。エンボス部11の幅Wは、光学フィルム10の幅W0の例えば5%を考えることができるが、この値に限定されるわけではない。なお、上記の幅WおよびW0は、いずれも、フィルムの幅手方向に沿った長さ(mm)である。なお、エンボス部11は、最低限、光学フィルム10の幅手方向のどこか1か所に形成されていればよく、その個数も特に限定されないが(2個以上であってもよいが)、通常は、幅手方向の両端の2か所に形成される。 As shown in these drawings, uneven embossed portions 11 are formed at both ends of the optical film 10 in the width direction (the direction along the core) by the embossing described above. Thereby, it becomes possible to suppress sticking (blocking) of the upper and lower optical films 10 in the film roll 2 and deviation of the optical film 10 in the core direction. For example, the width W of the embossed part 11 may be 5% of the width W0 of the optical film 10, but is not limited to this value. Each of the widths W and W0 is a length (mm) along the width direction of the film. In addition, the embossed part 11 should just be formed in one place somewhere in the width direction of the optical film 10, and the number thereof is not particularly limited (although it may be two or more), Usually, it is formed in two places on both ends in the width direction.
 図6は、架台3の分解斜視図である。架台3は、フィルムロール2を、巻芯2aを介して、該フィルムロール2の最表層2bが他と非接触となるように、内部に保持することができるように構成されている。具体的には、架台3は、枠体31と、2つの支持梁32とを有している。なお、以下での説明の便宜上、巻芯2aが水平となるようにフィルムロール2を架台3に載置(収容)したときにその巻芯2aを支える側を「下」、「下方」または「下側」とし、その反対側を「上」、「上方」または「上側」とする。したがって、上下方向は、鉛直方向と同じである。また、鉛直方向に垂直な方向を、側方とも呼ぶ。 FIG. 6 is an exploded perspective view of the gantry 3. The gantry 3 is configured so that the film roll 2 can be held inside via the core 2a so that the outermost layer 2b of the film roll 2 is not in contact with the other. Specifically, the gantry 3 includes a frame body 31 and two support beams 32. For convenience of explanation below, when the film roll 2 is placed (accommodated) on the gantry 3 so that the core 2a is horizontal, the side that supports the core 2a is “down”, “downward”, or “ The lower side is referred to as “upper”, “upper” or “upper”. Therefore, the vertical direction is the same as the vertical direction. A direction perpendicular to the vertical direction is also referred to as a side.
 枠体31は、全体として略直方体形状のフレームであり(図2参照)、フィルムロール2を外部にはみ出すことなく収容できる大きさで形成されている。この枠体31は、上枠部31aと、下枠部31bと、4つの支柱31cとを有している。上枠部31aおよび下枠部31bは、長方形の長辺および短辺に沿った枠状のフレームである。上枠部31aは、保持するフィルムロール2よりも上方に位置し、下枠部31bは、保持するフィルムロール2よりも下方に位置する。上枠部31aの角部(長方形の頂点)と、下枠部31bの角部(長方形の頂点)とは、支柱31cを介してそれぞれ連結されている。つまり、各支柱31cは、上枠部31aおよび下枠部31bを鉛直方向に連結している。このようにして、略直方体形状のフレーム(枠体31)が構成されている。 The frame body 31 is a substantially rectangular parallelepiped frame as a whole (see FIG. 2), and is formed in a size that can accommodate the film roll 2 without protruding outside. The frame body 31 includes an upper frame portion 31a, a lower frame portion 31b, and four support columns 31c. The upper frame part 31a and the lower frame part 31b are frame-shaped frames along the long and short sides of a rectangle. The upper frame portion 31a is positioned above the film roll 2 to be held, and the lower frame portion 31b is positioned below the film roll 2 to be held. The corners (rectangular vertices) of the upper frame portion 31a and the corners (rectangular vertices) of the lower frame portion 31b are connected to each other via a support column 31c. That is, each column 31c connects the upper frame portion 31a and the lower frame portion 31b in the vertical direction. Thus, a substantially rectangular parallelepiped frame (frame body 31) is configured.
 2つの支持梁32のうちの一方は、上枠部31aおよび下枠部31bの短辺同士を連結する2本の支柱31cの間で水平に(支柱31cに対して垂直に)位置するように、上記2本の支柱31cと連結されている。また、2つの支持梁32のうちの他方も同様に、上枠部31aおよび下枠部31bの残りの短辺同士を連結する2本の支柱31cの間で水平に(支柱31cに対して垂直に)位置するように、上記残りの2本の支柱31cと連結されている。 One of the two support beams 32 is positioned horizontally (perpendicular to the column 31c) between the two columns 31c that connect the short sides of the upper frame unit 31a and the lower frame unit 31b. The two struts 31c are connected. Similarly, the other of the two support beams 32 is horizontally between the two columns 31c connecting the remaining short sides of the upper frame portion 31a and the lower frame portion 31b (perpendicular to the column 31c). The remaining two columns 31c are connected so as to be positioned.
 2つの支持梁32には、上枠部31a側が開口するように半円筒状に切り込まれた凹部32aが形成されている。図2に示すように、フィルムロール2の巻芯2aの両端部が各支持梁32の凹部32aに入り込むことにより、巻芯2aが支持梁32に固定され、フィルムロール2が安定して支持されることになる。なお、回動可能な蓋部材を支持梁32に設け、巻芯2aが凹部32aに入り込んだ後に、凹部32aに蓋部材を被せて、巻芯2aの凹部32aからの脱落を防止するようにしてもよい。 The two support beams 32 are formed with recesses 32a cut into a semi-cylindrical shape so that the upper frame portion 31a side opens. As shown in FIG. 2, both ends of the core 2a of the film roll 2 enter the concave portions 32a of the support beams 32, whereby the core 2a is fixed to the support beams 32, and the film roll 2 is stably supported. Will be. A pivotable lid member is provided on the support beam 32, and after the core 2a enters the recess 32a, the recess 32a is covered with a lid member to prevent the core 2a from falling off the recess 32a. Also good.
 なお、架台3は、上記の構成や形状に限定されるわけではない。例えば、架台3は、枠体31および支持梁32の一部を分離して(取り外して)折りたたみ可能に構成されてもよい。また、架台3は、上記の直方体形状の一部に丸みを持たせた形状であってもよい。 Note that the gantry 3 is not limited to the above configuration and shape. For example, the gantry 3 may be configured to be detachable by separating (detaching) part of the frame body 31 and the support beam 32. Further, the gantry 3 may have a shape in which a part of the rectangular parallelepiped shape is rounded.
 図1に示した被覆部材4は、架台3を覆うことによって、架台3の内部のフィルムロール2を最表層2bと非接触で覆う部材である。架台3は、略直方体形状のフレームであるため、架台3を覆う被覆部材4は、直方体の外表面に沿う形状となっている。すなわち、被覆部材4は、フィルムロール2を介して互いに対向する上面部4aおよび下面部4bと、4つの側面部4cとを含んでいる。上面部4aは、枠体31の上枠部31a(図6参照)を覆う面であり、側辺が上枠部31aに沿って位置することで略長方形状で形成されている。下面部4bは、枠体31の下枠部31b(図6参照)を覆う面であり、側辺が下枠部31bに沿って位置することで略長方形状で形成されている。4つの側面部4cは、略長方形状の上面部4aおよび下面部4bの外縁(各側辺)同士を連結しており、それぞれ四角形状で形成されている。 The covering member 4 shown in FIG. 1 is a member that covers the gantry 3 to cover the film roll 2 inside the gantry 3 in a non-contact manner with the outermost layer 2b. Since the gantry 3 is a substantially rectangular parallelepiped frame, the covering member 4 covering the gantry 3 has a shape along the outer surface of the cuboid. That is, the covering member 4 includes an upper surface portion 4a and a lower surface portion 4b that face each other with the film roll 2 interposed therebetween, and four side surface portions 4c. The upper surface portion 4a is a surface that covers the upper frame portion 31a (see FIG. 6) of the frame body 31, and is formed in a substantially rectangular shape with the side edges positioned along the upper frame portion 31a. The lower surface portion 4b is a surface that covers the lower frame portion 31b (see FIG. 6) of the frame body 31, and is formed in a substantially rectangular shape with the side edges positioned along the lower frame portion 31b. The four side surface parts 4c connect the outer edges (each side) of the substantially rectangular upper surface part 4a and lower surface part 4b, and are formed in a quadrangular shape.
 本実施形態では、被覆部材4は、断熱性を有する梱包材41と、透明シート42とを有して構成されている。より具体的には、図1に示すように、被覆部材4において、上面部4aと、側面部4cの高さ方向(上面部4aと下面部4bとの対向方向、鉛直方向)の一部とが、断熱性を有する梱包材41で構成されており、下面部4bと、側面部4cの高さ方向の残りの部分とが、透明シート42で構成されている。なお、例えば被覆部材4の上面部4aと、側面部4cの全体(高さ方向の全域)とが、梱包材41で構成され、下面部4bのみが透明シート42で構成されていてもよい。 In the present embodiment, the covering member 4 includes a packaging material 41 having a heat insulating property and a transparent sheet 42. More specifically, as shown in FIG. 1, in the covering member 4, the upper surface portion 4 a and a part of the side surface portion 4 c in the height direction (the facing direction between the upper surface portion 4 a and the lower surface portion 4 b, the vertical direction) However, it is comprised by the packaging material 41 which has heat insulation, and the lower surface part 4b and the remaining part of the height direction of the side part 4c are comprised by the transparent sheet 42. FIG. For example, the upper surface portion 4a of the covering member 4 and the entire side surface portion 4c (the entire region in the height direction) may be configured by the packing material 41, and only the lower surface portion 4b may be configured by the transparent sheet 42.
 ここで、4つの側面部4c全体の面積に対して、梱包材41が占める面積の割合を、被覆率Pとする。この被覆率Pは、図7に示すように、被覆部材4の側面部4cにおける上面部4aおよび下面部4bの対向方向の長さ、つまり、被覆部材4で覆われる架台3の鉛直方向の長さをH(mm)とし、側面部4cのうち梱包材41で構成される部分の対向方向の長さ、つまり、架台3の鉛直方向の少なくとも一部を包装する梱包材41の上記鉛直方向の長さをX(mm)として、以下の式で定義される。この被覆率Pは、0%よりも大きく100%以下の範囲で適宜設定されればよい。
   P(%)=(X/H)×100
Here, the ratio of the area occupied by the packing material 41 to the total area of the four side surface parts 4c is defined as a coverage rate P. As shown in FIG. 7, the coverage P is the length of the side surface portion 4 c of the covering member 4 in the opposing direction of the upper surface portion 4 a and the lower surface portion 4 b, that is, the vertical length of the gantry 3 covered with the covering member 4. H (mm), the length in the facing direction of the portion constituted by the packing material 41 in the side surface portion 4c, that is, the vertical direction of the packing material 41 for packaging at least a part of the vertical direction of the gantry 3 The length is defined by the following formula, where X (mm). The coverage P may be set as appropriate in the range of greater than 0% and not greater than 100%.
P (%) = (X / H) × 100
 なお、上面部4aおよび側面部4cの一部を梱包材41で構成した場合、梱包材41としての上面部4aおよび側面部4cの一部は、連結されていてもよいし、分離されていてもよい。同様に、下面部4bおよび側面部4cの一部を梱包材41で構成した場合、梱包材41としての下面部4bおよび側面部4cの一部は、連結されていてもよいし、分離されていてもよい。 In addition, when a part of upper surface part 4a and the side part 4c is comprised with the packing material 41, a part of upper surface part 4a and the side part 4c as the packing material 41 may be connected, or it is isolate | separated. Also good. Similarly, when a part of the lower surface part 4b and the side surface part 4c is configured by the packing material 41, a part of the lower surface part 4b and the side surface part 4c as the packing material 41 may be connected or separated. May be.
 断熱性を有する梱包材41としては、例えば、不透明で光や熱を吸収または遮断する部材を用いることができる。例えば、アルミ箔などの金属シート、段ボールのような厚紙や薄い包装紙を含む紙製シート、透明樹脂に着色顔料(例えばカーボンブラック)を混ぜた樹脂シート、布、木材などを梱包材41として用いることができる。 As the packaging material 41 having heat insulation properties, for example, an opaque member that absorbs or blocks light and heat can be used. For example, a metal sheet such as aluminum foil, a paper sheet including cardboard-like cardboard or thin wrapping paper, a resin sheet obtained by mixing a transparent pigment with a color pigment (for example, carbon black), cloth, wood, or the like is used as the packing material 41. be able to.
 また、梱包材41として、例えば図8に示す気泡緩衝シート41aを用いることもできる。気泡緩衝シート41aとは、2枚のポリエチレン製のシート41a1・41a2を、これらの間に無数の気泡(空気層)41a3が形成されるように貼り合わせ、気泡41a3の存在によって緩衝性を持たせたシートである。 Further, as the packing material 41, for example, a bubble cushioning sheet 41a shown in FIG. 8 can be used. Bubble cushioning sheet 41a includes two polyethylene-made sheet 41a 1 · 41a 2, bonded to a myriad of bubbles between them (the air layer) 41a 3 is formed, buffered by the presence of bubbles 41a 3 It is a sheet that has a character.
 さらに、上述した材料を適宜組み合わせて梱包材41を構成することもできる。例えば、気泡緩衝シートと金属シートとを貼り合わせて梱包材41を構成することができ、樹脂シートと金属シートとを貼り合わせて梱包材41を構成することもできる。 Furthermore, the packaging material 41 can be configured by appropriately combining the above-described materials. For example, the packing material 41 can be configured by bonding a bubble cushioning sheet and a metal sheet, and the packing material 41 can also be configured by bonding a resin sheet and a metal sheet.
 透明シート42は、被覆部材4において、梱包材41以外の部分を構成している。透明シート42は、透明な樹脂シートであれば特に限定されない。例えば、ポリ塩化ビニリデン(PVDC)、ポリ塩化ビニル(PVC)、低密度ポリエチレン(PE、LDPE)などを原料として製造される透明な樹脂シートを、透明シート42として用いることができる。 The transparent sheet 42 constitutes a part other than the packing material 41 in the covering member 4. The transparent sheet 42 is not particularly limited as long as it is a transparent resin sheet. For example, a transparent resin sheet manufactured using polyvinylidene chloride (PVDC), polyvinyl chloride (PVC), low density polyethylene (PE, LDPE), or the like as a raw material can be used as the transparent sheet 42.
 〔梱包体の製造方法〕
 次に、梱包体1の製造方法について説明する。例えば、梱包材41として金属シートを用い、透明シート42としてポリエチレン製の透明な樹脂シートを用いた場合、以下のようにして梱包材41および透明シート42で架台3を覆うことにより、梱包体1を得ることができる。なお、以下の図面では、便宜的に、架台3の支持梁32aおよびフィルムロール2の図示を省略するが、架台3には、支持梁32aにてフィルムロール2が支持されているものとする(以降の図面でも同様とする)。
[Method of manufacturing package]
Next, the manufacturing method of the package 1 is demonstrated. For example, when a metal sheet is used as the packaging material 41 and a transparent resin sheet made of polyethylene is used as the transparent sheet 42, the packaging body 1 is covered with the packaging material 41 and the transparent sheet 42 as follows. Can be obtained. In addition, in the following drawings, illustration of the support beam 32a of the mount frame 3 and the film roll 2 is omitted for convenience, but it is assumed that the film roll 2 is supported on the mount frame 3 by the support beam 32a ( The same applies to the subsequent drawings).
 図9は、本実施形態の梱包体1の製造方法の一例を示す説明図である。まず、架台3の下枠部31bを透明シート42で覆うとともに、接着剤またはテープでこれらを固定する。続いて、4つの支柱31cの下半分(高さ方向の中心よりも下枠部31b側)を順に囲むように透明シート42を巻き付けて、接着剤等で固定する。 FIG. 9 is an explanatory diagram showing an example of a method for manufacturing the package 1 according to the present embodiment. First, the lower frame portion 31b of the gantry 3 is covered with the transparent sheet 42 and fixed with an adhesive or a tape. Subsequently, the transparent sheet 42 is wound around the lower half of the four columns 31c (the lower frame portion 31b side with respect to the center in the height direction) in order and fixed with an adhesive or the like.
 次に、架台3の上枠部31aを梱包材41で覆うとともに、これらを接着剤等で固定する。そして、4つの支柱31cの上半分(高さ方向の中心よりも上枠部31a側)を順に囲むように梱包材41を巻き付けて、接着剤等で固定する(P=50%)。これにより、梱包体1が完成する。なお、梱包材41の長さXおよび透明シート42の長さ(W-X)は、設定される被覆率Pが実現されるように、適宜調整すればよい。 Next, the upper frame portion 31a of the gantry 3 is covered with the packing material 41, and these are fixed with an adhesive or the like. Then, the packing material 41 is wound around the upper half (the upper frame portion 31a side of the center in the height direction) in order and fixed with an adhesive or the like (P = 50%). Thereby, the package 1 is completed. Note that the length X of the packing material 41 and the length (W−X) of the transparent sheet 42 may be adjusted as appropriate so that the set coverage P is achieved.
 なお、最初に透明シート42で架台3の全体を覆うか、上枠部31aと4つの支柱31c全体とを覆い、次に、梱包材41(例えば金属シート)で上枠部31aと4つの支柱31cの高さ方向の一部とを覆うようにしてもよい。この場合、梱包材41の内側に透明シート42が位置するが、被覆部材4において、梱包材41以外の部分が透明シート42であることに変わりはない。 First, the entire frame 3 is covered with the transparent sheet 42, or the upper frame portion 31a and the entire four columns 31c are covered, and then the upper frame portion 31a and the four columns are covered with the packing material 41 (for example, a metal sheet). You may make it cover a part of the height direction of 31c. In this case, although the transparent sheet 42 is located inside the packing material 41, the portion other than the packing material 41 in the covering member 4 is still the transparent sheet 42.
 図10は、梱包体1の他の製造方法を示す説明図である。梱包体1は、以下のようにして製造されてもよい。すなわち、架台3の下枠部31bを覆うように透明シート42を接着剤等で貼り付けるとともに、透明シート42の四隅に切り欠き42Pを形成する。そして、下枠部31bからはみ出た透明シート42を下枠部31bに沿って折り曲げて支柱31cに接着剤等で固定する。次に、架台3の上枠部31aを覆うように梱包材41を接着剤等で貼り付けるとともに、梱包材41の四隅に切り欠き41Pを形成する。そして、上枠部31aからはみ出た梱包材41を上枠部31aに沿って折り曲げて支柱31cに接着剤等で固定する。これにより、梱包体1が完成する。 FIG. 10 is an explanatory view showing another manufacturing method of the package 1. The package 1 may be manufactured as follows. That is, the transparent sheet 42 is attached with an adhesive or the like so as to cover the lower frame portion 31 b of the gantry 3, and notches 42 </ b> P are formed at the four corners of the transparent sheet 42. Then, the transparent sheet 42 protruding from the lower frame portion 31b is bent along the lower frame portion 31b and fixed to the column 31c with an adhesive or the like. Next, the packaging material 41 is affixed with an adhesive or the like so as to cover the upper frame portion 31 a of the gantry 3, and notches 41 </ b> P are formed at the four corners of the packaging material 41. Then, the packing material 41 protruding from the upper frame portion 31a is bent along the upper frame portion 31a and fixed to the column 31c with an adhesive or the like. Thereby, the package 1 is completed.
 図11は、梱包体1のさらに他の製造方法を示す説明図である。例えば、梱包材41として、段ボールなどの厚紙を予め蓋状に折り曲げた蓋部41bを用いてもよい。この場合、架台3の下半分(下枠部31bを含む)を覆うように透明シート42を巻き付けてこれらを接着剤等で固定した後、上枠部31a側から蓋部41bを架台3に被せることにより、梱包体1を得ることができる。 FIG. 11 is an explanatory view showing still another manufacturing method of the package 1. For example, as the packing material 41, a lid portion 41b obtained by bending cardboard or other thick paper into a lid shape in advance may be used. In this case, after winding the transparent sheet 42 so as to cover the lower half (including the lower frame portion 31b) of the pedestal 3 and fixing them with an adhesive or the like, the lid portion 41b is put on the pedestal 3 from the upper frame portion 31a side. Thus, the package 1 can be obtained.
 以上のように、本実施形態では、架台3を覆うことによってフィルムロール2を覆う被覆部材4の一部が、断熱性を有する梱包材41で構成されている。これにより、梱包体1の外部の熱のフィルムロール2への伝達が上記梱包材41によって妨げられる。しかも、フィルムロール2の最表層2bと梱包材41とは非接触であり、これらの間には空隙層が存在する。空気は熱伝導率が極めて低いため、外部の熱のフィルムロール2への伝達を妨げる効果がさらに増大する。また、断熱性を有する梱包材41で構成されているのは被覆部材4の一部であるため、被覆部材4の内部に熱が蓄積されたとしても、その熱を、被覆部材4の残りの部分(梱包材41以外の透明シート42)を介して外部に拡散(放熱)させることもできる。 As described above, in this embodiment, a part of the covering member 4 that covers the film roll 2 by covering the gantry 3 is composed of the packing material 41 having heat insulation. As a result, transmission of heat outside the package 1 to the film roll 2 is hindered by the packing material 41. Moreover, the outermost layer 2b of the film roll 2 and the packing material 41 are not in contact with each other, and a gap layer exists between them. Since air has an extremely low thermal conductivity, the effect of preventing the transfer of external heat to the film roll 2 is further increased. Moreover, since it is a part of the covering member 4 that is constituted by the packing material 41 having heat insulation properties, even if heat is accumulated inside the covering member 4, the heat is transferred to the rest of the covering member 4. It can also be diffused (heat radiation) to the outside through a portion (transparent sheet 42 other than the packing material 41).
 したがって、以上より、梱包体1の輸送後、倉庫への搬入作業時に、梱包体1が屋外に曝露されても、梱包体1の内部のフィルムロール2に急激な温度上昇が生じるのを抑えることができる。これにより、フィルムロール2の熱膨張を抑え、この熱膨張に起因してチェーン状の故障が発生するのを低減することができる。 Therefore, from the above, even when the packaging body 1 is exposed to the outdoors after the packaging body 1 is transported to the warehouse, the film roll 2 inside the packaging body 1 is prevented from suddenly rising in temperature. Can do. Thereby, the thermal expansion of the film roll 2 can be suppressed, and occurrence of a chain-like failure due to the thermal expansion can be reduced.
 また、梱包体1において、上述の定義で規定される梱包材41の被覆率Pが大きくなると、側面部4cにおいて、梱包材41以外の部分(透明シート42)の面積が小さくなるため、被覆部材4の内部に閉じ込められた熱を、透明シート42を介して放出するときの放熱性が低下する。放熱性が低下すると、被覆部材4の内部に熱がこもりやすくなって、フィルムロール2に熱膨張を抑える効果が小さくなり、チェーン状の故障を低減する効果が小さくなる。このような観点から、被覆率Pは、50%以下であることが望ましい。 Further, in the packaging body 1, when the coverage P of the packaging material 41 defined by the above definition is increased, the area of the portion (transparent sheet 42) other than the packaging material 41 is reduced in the side surface portion 4 c. The heat dissipation when the heat trapped inside 4 is released through the transparent sheet 42 is reduced. When the heat dissipation is reduced, heat is easily trapped inside the covering member 4, the effect of suppressing the thermal expansion of the film roll 2 is reduced, and the effect of reducing chain-like failure is reduced. From such a viewpoint, the coverage P is preferably 50% or less.
 一方、梱包材41の被覆率Pが10%未満であると、側面部4cにおいて、断熱性を有する梱包材41によって外部の熱を遮断する効果が小さくなる。 On the other hand, when the covering rate P of the packing material 41 is less than 10%, the effect of blocking external heat by the packing material 41 having heat insulation is reduced in the side surface portion 4c.
 以上より、梱包材41による断熱効果と、透明シート42による放熱効果とをバランスよく得る観点から、被覆率Pは10%以上50%以下であることが望ましいと言える。 From the above, from the viewpoint of obtaining a good balance between the heat insulating effect by the packing material 41 and the heat radiation effect by the transparent sheet 42, it can be said that the coverage P is preferably 10% or more and 50% or less.
 また、本実施形態では、図4および図5で示したように、フィルムロール2は、1種の光学フィルム10のみを巻回して積層した巻回体である。この構成では、光学フィルム10に他のフィルム(例えば次工程で剥離される保護フィルム)を積層して巻回体とする構成に比べて、保護フィルムを用いない分、コスト削減を図ることができる。また、例えば偏光板の加工工程において、フィルムロール2から光学フィルム10を繰り出すときに、保護フィルムを剥離する工程が不要であるため、工数の削減および製造工程の簡略化を図ることもできる。 In this embodiment, as shown in FIGS. 4 and 5, the film roll 2 is a wound body in which only one type of optical film 10 is wound and laminated. In this configuration, compared to a configuration in which another film (for example, a protective film peeled off in the next step) is laminated on the optical film 10 to form a wound body, the cost can be reduced because the protective film is not used. . In addition, for example, in the processing step of the polarizing plate, when the optical film 10 is unwound from the film roll 2, the step of peeling off the protective film is unnecessary, so that the number of steps can be reduced and the manufacturing process can be simplified.
 また、本実施形態では、被覆部材4において、断熱性を有する梱包材41以外の部分は、透明シート42で構成されている。これにより、被覆部材4の内部に熱が蓄積されたとしても、その熱を、透明シート42を介して外部に拡散することができる。したがって、被覆部材4の内部に熱がこもるのを低減して、フィルムロール2の温度上昇を抑え、フィルムロール2の熱膨張に起因するチェーン状の故障を効率よく抑えることが可能となる。また、透明シート42により、外部の雨風や塵埃から、フィルムロール2を保護することもできる。 Moreover, in this embodiment, parts other than the packing material 41 which has heat insulation in the coating | coated member 4 are comprised with the transparent sheet 42. FIG. Thereby, even if heat is accumulated inside the covering member 4, the heat can be diffused to the outside through the transparent sheet 42. Therefore, it is possible to reduce heat from being trapped inside the covering member 4, suppress a temperature rise of the film roll 2, and efficiently suppress a chain-like failure caused by the thermal expansion of the film roll 2. The transparent sheet 42 can also protect the film roll 2 from external rain and dust.
 図12は、本実施形態の梱包体1の他の構成を示す斜視図である。同図のように、梱包体1において、断熱性を有する梱包材41と、透明シート42との位置関係は、図1の構成とは逆であってもよい。すなわち、被覆部材4の下面部4bと、側面部4cにおける下面部4b側の一部とが、断熱性を有する梱包材41で構成されていてもよい。このとき、被覆部材4の上面部4aと、側面部4cの残りの部分(上面部4a側)とは、透明シート42で構成される。 FIG. 12 is a perspective view showing another configuration of the packing body 1 of the present embodiment. As shown in the figure, the positional relationship between the packing material 41 having heat insulation and the transparent sheet 42 in the packing body 1 may be opposite to the configuration in FIG. 1. That is, the lower surface portion 4b of the covering member 4 and a part of the side surface portion 4c on the lower surface portion 4b side may be configured by the packing material 41 having heat insulation properties. At this time, the upper surface portion 4 a of the covering member 4 and the remaining portion (upper surface portion 4 a side) of the side surface portion 4 c are configured by the transparent sheet 42.
 図1および図12のように、被覆部材4の上面部4aまたは下面部4bと、側面部4cの高さ方向(上面部4aおよび下面部4bの対向方向)の少なくとも一部とが、断熱性を有する梱包材41で構成されていることにより、上面部4aのみ、または下面部4bのみを梱包材41で被覆する構成に比べて、梱包材41で覆われる面積が増大し、遮熱効果がさらに高くなる。したがって、フィルムロール2において、熱膨張に起因するチェーン状の故障を低減する効果を確実に得ることができる。 As shown in FIGS. 1 and 12, the upper surface portion 4a or the lower surface portion 4b of the covering member 4 and at least a part of the side surface portion 4c in the height direction (opposite direction of the upper surface portion 4a and the lower surface portion 4b) are thermally insulating. Compared to the configuration in which only the upper surface portion 4a or only the lower surface portion 4b is covered with the packing material 41, the area covered with the packing material 41 is increased, and the heat shielding effect is obtained. It gets even higher. Therefore, in the film roll 2, the effect of reducing chain-like failure due to thermal expansion can be reliably obtained.
 なお、図1および図12より、被覆部材4の上面部4aは、フィルムロール2の鉛直上方を覆い、下面部4bは、フィルムロール2の鉛直下方を覆い、側面部4cは、フィルムロール2を側方から覆うことは明らかである。したがって、架台3を包装することによって、上面部4aまたは下面部4bと、側面部4cの鉛直方向の少なくとも一部とを構成する梱包材41は、以下のように表現することができる。つまり、断熱性を有する梱包材41は、フィルムロール2の鉛直上方または鉛直下方を覆うように架台3を包装するとともに、架台3の鉛直方向の少なくとも一部を、フィルムロール2を側方から覆うように包装する。 From FIG. 1 and FIG. 12, the upper surface portion 4a of the covering member 4 covers the vertical upper side of the film roll 2, the lower surface portion 4b covers the vertical lower side of the film roll 2, and the side surface portion 4c covers the film roll 2. Obviously it covers from the side. Therefore, the packaging material 41 which comprises the upper surface part 4a or the lower surface part 4b, and the at least one part of the vertical direction of the side part 4c by packaging the mount frame 3 can be expressed as follows. That is, the packaging material 41 having heat insulation wraps the gantry 3 so as to cover the vertical upper side or the vertical lower side of the film roll 2, and covers at least a part of the vertical direction of the gantry 3 from the side. Packaging as
 〔包装材について〕
 図13は、梱包体1のさらに他の構成を、架台3および被覆部材4の図示を省略して示す斜視図である。梱包体1は、包装材5をさらに備えていてもよい。包装材5は、フィルムロール2の巻芯方向(巻芯2aが延びる方向)の少なくとも一部において、フィルムロール2の最表層2bを覆うシートであり、例えば、図8で示した気泡緩衝シート41aや、不透明な金属シートまたは樹脂シートなど、梱包材41を構成するシートと同様のシートで構成することができる。
[About packaging materials]
FIG. 13 is a perspective view showing still another configuration of the packing body 1 with the gantry 3 and the covering member 4 omitted. The package 1 may further include a packaging material 5. The packaging material 5 is a sheet that covers the outermost layer 2b of the film roll 2 in at least a part of the core direction of the film roll 2 (the direction in which the core 2a extends). For example, the bubble cushioning sheet 41a shown in FIG. Or it can be comprised with the sheet | seat similar to the sheet | seat which comprises the packing material 41, such as an opaque metal sheet or a resin sheet.
 フィルムロール2の最表層2bを包装材5が覆うことにより、外部からの熱をフィルムロール2の直前で遮断または吸収し、フィルムロール2への熱の伝達を妨げることができる。したがって、包装材5を梱包材41と併用することにより、外部の熱によるフィルムロール2の急激な温度上昇を抑える効果をより高めることができ、フィルムロール2において、熱膨張に起因するチェーン状の故障を低減する効果をより高めることができる。 By covering the outermost layer 2 b of the film roll 2 with the packaging material 5, heat from the outside can be blocked or absorbed immediately before the film roll 2, and heat transfer to the film roll 2 can be prevented. Therefore, by using the packaging material 5 together with the packaging material 41, the effect of suppressing the rapid temperature rise of the film roll 2 due to external heat can be further enhanced. In the film roll 2, a chain-like shape caused by thermal expansion can be achieved. The effect of reducing failures can be further enhanced.
 ここで、包装材5の厚みは、被覆部材4の梱包材41の厚みよりも厚いことが望ましい。この場合、外部の熱が梱包材41を介して包装材5に到達したとしても、包装材5の厚みによって上記熱を確実に遮断できる。したがって、上記チェーン状の故障のみならず、フィルムロール2の熱による弾性変形も抑えることが可能となる。 Here, the thickness of the packaging material 5 is desirably thicker than the thickness of the packaging material 41 of the covering member 4. In this case, even if external heat reaches the packaging material 5 via the packaging material 41, the heat can be reliably blocked by the thickness of the packaging material 5. Therefore, not only the chain-like failure but also elastic deformation of the film roll 2 due to heat can be suppressed.
 〔架台の他の構成について〕
 上述した架台3において、下枠部31bは、金属板と一体化されて下面部を構成していてもよい。この場合、被覆部材4は、架台3の上記下面部を覆う必要が無く、上述した上面部4aおよび4つの側面部4cのみで構成することができる。このことから、被覆部材4は、架台3の少なくとも一部を覆うことによって、フィルムロール2を最表層2bと非接触で覆う構成であればよいと言える。
[Other frame configurations]
In the gantry 3 described above, the lower frame portion 31b may be integrated with the metal plate to form the lower surface portion. In this case, the covering member 4 does not need to cover the lower surface portion of the gantry 3 and can be configured by only the upper surface portion 4a and the four side surface portions 4c described above. From this, it can be said that the covering member 4 only needs to cover the film roll 2 in a non-contact manner with the outermost layer 2 b by covering at least a part of the gantry 3.
 〔実施例〕
 以下、本発明の具体的な実施例について説明する。なお、本発明はこれらの実施例に限定されるわけではない。
〔Example〕
Hereinafter, specific examples of the present invention will be described. The present invention is not limited to these examples.
 <梱包体1の作製>
 まず、長尺状の光学フィルムとしてのセルローストリアセテートフィルムを(TACフィルム、幅1300mm、膜厚40μm)を巻芯に巻き取ったフィルムロールを用意した。すなわち、上記フィルムロールは、TACフィルムという1種の光学フィルムのみの巻回体である(巻長は4000m)。このフィルムロールを、図2と同様の構造を有する架台に、該ロールの最表層が他の部材(例えば架台)と非接触となるように収容した(フィルムロールの巻芯を架台で支持した)。なお、ここでは、フィルムロールの最表層を包装材(断熱シート)で覆わずに、フィルムロールを架台に収容した。
<Production of packing body 1>
First, a film roll was prepared by winding a cellulose triacetate film (TAC film, width 1300 mm, film thickness 40 μm) as a long optical film around a core. That is, the said film roll is a winding body only of 1 type of optical films called a TAC film (winding length is 4000 m). This film roll was accommodated in a gantry having the same structure as in FIG. 2 so that the outermost layer of the roll was not in contact with other members (for example, the gantry) (the core of the film roll was supported by the gantry). . In addition, the film roll was accommodated in the mount frame here, without covering the outermost layer of a film roll with a packaging material (heat insulation sheet).
 次に、梱包材として、金属シート(日本マタイ株式会社製、厚み30μm)を用い、架台内部に収容したフィルムロールの鉛直上方を覆うように、架台を梱包材で包装し、梱包材をテープで固定した。また、透明シートとして、低密度ポリエチレンからなる透明シート(厚み50μm)を用い、フィルムロールの鉛直下方を覆い、かつ、フィルムロールを側方から囲むように、上記透明シートで架台を包装してテープで固定し、梱包体1を作製した。なお、梱包材および透明シートによる包装の順序は逆でもよい。梱包体1では、梱包材がフィルムロールの側方を覆っていないため(フィルムの側方は透明シートで覆われているため)、上述の式で定義される梱包材の被覆率Pは、0%である。 Next, as a packaging material, a metal sheet (made by Nippon Matai Co., Ltd., thickness 30 μm) is used. The platform is packaged with the packaging material so as to cover the vertical upper side of the film roll accommodated in the platform, and the packaging material is taped. Fixed. In addition, a transparent sheet (thickness 50 μm) made of low-density polyethylene is used as the transparent sheet, and the frame is wrapped with the transparent sheet so as to cover the film roll vertically from below and surround the film roll from the side. Then, the package 1 was prepared. Note that the packaging order of the packaging material and the transparent sheet may be reversed. In the packing body 1, since the packing material does not cover the side of the film roll (because the side of the film is covered with a transparent sheet), the covering rate P of the packing material defined by the above formula is 0. %.
 <梱包体2の作製>
 フィルムロールの鉛直上方に加えて、フィルムロールを側方から覆うように、梱包材で架台を包装した以外は、梱包体1の作製と同様にして梱包体2を作製した。このとき、側面部の梱包材による被覆率Pが50%となるように、架台の上半分を梱包材で包装した。なお、架台において上記梱包材で包装されていない部分(架台の下半分)は、梱包体1の作製で用いた透明シートと同じシートで包装した。
<Production of packing body 2>
A packaging body 2 was produced in the same manner as the packaging body 1 except that the base was wrapped with a packaging material so as to cover the film roll from the side in addition to the upper side of the film roll. At this time, the upper half of the gantry was packaged with the packing material so that the coverage P with the packing material on the side surface was 50%. In addition, the part which is not packaged with the said packing material in the mount frame (lower half of the mount frame) was packaged with the same sheet as the transparent sheet used in the production of the package 1.
 <梱包体3の作製>
 フィルムロールの鉛直上方に加えて、フィルムロールを側方から覆うように、梱包材で架台を包装した以外は、梱包体1の作製と同様にして梱包体3を作製した。このとき、側面部の梱包材による被覆率Pが100%となるように、架台の鉛直方向全域を梱包材で包装した。なお、架台において上記梱包材で包装されていない部分(フィルムロールの鉛直下方)は、梱包体1の作製で用いた透明シートと同じシートで包装した。
<Production of packing body 3>
A packaging body 3 was produced in the same manner as the packaging body 1 except that the frame roll was covered with a packaging material so as to cover the film roll from the side in addition to the upper side of the film roll. At this time, the whole area in the vertical direction of the gantry was packaged with the packing material so that the coverage P with the packing material on the side surface was 100%. In addition, the part (vertically downward of a film roll) which is not packaged with the said packaging material in a mount was packaged with the same sheet | seat as the transparent sheet used by preparation of the package 1. FIG.
 <梱包体4の作製>
 架台内部に収容したフィルムロールの鉛直下方を覆うように、梱包材で架台を包装し、フィルムロールの鉛直上方および側方を覆うように、透明シートで架台を包装した以外は、梱包体1の作製と同様にして梱包体4を作製した。梱包体4では、梱包材がフィルムロールの側方を覆っていないため(フィルムの側方は透明シートで覆われているため)、上述の式で定義される梱包材の被覆率Pは、0%である。
<Preparation of packing body 4>
Except for packaging the frame with a packing material so as to cover the vertically lower side of the film roll housed inside the frame, and packaging the frame with a transparent sheet so as to cover the vertical upper side and the side of the film roll. The package 4 was produced in the same manner as the production. In the packing body 4, since the packing material does not cover the side of the film roll (because the side of the film is covered with a transparent sheet), the coverage P of the packing material defined by the above formula is 0. %.
 <梱包体5の作製>
 フィルムロールの鉛直下方に加えて、フィルムロールを側方から覆うように、梱包材で架台を包装した以外は、梱包体4の作製と同様にして梱包体5を作製した。このとき、側面部の梱包材による被覆率Pが50%となるように、架台の下半分を梱包材で包装した。なお、架台において上記梱包材で包装されていない部分(架台の上半分)は、梱包体4の作製で用いた透明シートと同じシートで包装した。
<Preparation of packing body 5>
In addition to vertically below the film roll, a packaging body 5 was produced in the same manner as the packaging body 4 except that the mount was wrapped with a packaging material so as to cover the film roll from the side. At this time, the lower half of the gantry was packaged with the packaging material so that the coverage P with the packaging material on the side surface was 50%. In addition, the part (upper half of the gantry) that was not wrapped with the packaging material in the gantry was packaged with the same sheet as the transparent sheet used in the production of the packaging body 4.
 <梱包体6の作製>
 フィルムロールの鉛直下方に加えて、フィルムロールを側方から覆うように、梱包材で架台を包装した以外は、梱包体4の作製と同様にして梱包体6を作製した。このとき、側面部の梱包材による被覆率Pが100%となるように、架台の鉛直方向全域を梱包材で包装した。なお、架台において上記梱包材で包装されていない部分(フィルムロールの鉛直上方)は、梱包体4の作製で用いた透明シートと同じシートで包装した。
<Preparation of packing body 6>
In addition to vertically below the film roll, a packaging body 6 was produced in the same manner as the packaging body 4 except that the frame was covered with a packaging material so as to cover the film roll from the side. At this time, the whole area in the vertical direction of the gantry was packaged with the packing material so that the coverage P with the packing material on the side surface was 100%. In addition, the part (vertical upper direction of a film roll) which is not packaged with the said packing material in a mount was packaged with the same sheet | seat as the transparent sheet used by preparation of the package 4. FIG.
 <梱包体7の作製>
 梱包体1の作製で用いたフィルムロールを架台に収容した後、上記架台を透明シートのみで包装し、梱包体7を作製した。上記透明シートとしては、梱包体1の作製で用いた透明シートと同じシートを用いた。
<Production of packing body 7>
After the film roll used in the production of the package 1 was accommodated in a gantry, the gantry was packaged only with a transparent sheet to produce a package 7. As the transparent sheet, the same sheet as the transparent sheet used in the production of the package 1 was used.
 <梱包体8の作製>
 梱包体1の作製で用いたフィルムロールの最表層に包装材を巻き付けて、上記フィルムロールを架台に収容した。そして、この架台を透明シートのみで包装して梱包体8を作製した。なお、上記包装材としては、図8で示した構造の気泡緩衝シートに金属シートを貼り合わせた断熱シート(川上産業株式会社製、厚み3.5mm)を用いた。また、上記透明シートとしては、梱包体1の作製で用いた透明シートと同じシートを用いた。
<Production of packing body 8>
A packaging material was wound around the outermost layer of the film roll used in the production of the package 1, and the film roll was housed in a gantry. And this mount was wrapped only with a transparent sheet, and the package 8 was produced. In addition, as the packaging material, a heat insulating sheet (made by Kawakami Sangyo Co., Ltd., thickness: 3.5 mm) in which a metal sheet was bonded to the bubble buffer sheet having the structure shown in FIG. Further, as the transparent sheet, the same sheet as the transparent sheet used in the production of the package 1 was used.
 <評価>
 (ロール温度変化1)
 作製した梱包体1~8を、25℃の室内で保管した後、直射日光の当たる30℃の屋外に搬出し、60分間放置した。そして、屋外放置後のロールの最表面の温度を、温度センサ(株式会社テストー製、型番05609056)で測定した。ここで、ロール温度の変化量をT1(℃)とすると、T1=(60分放置後のフィルム温度)-(室内時のフィルム温度(25℃))と定義する。
 《評価基準》
  ◎:T1≦7℃
  ○:7℃<T1≦10℃
  △:10℃<T1≦15℃
  ×:15℃<T1
<Evaluation>
(Roll temperature change 1)
The produced packages 1 to 8 were stored in a room at 25 ° C., then taken out outdoors at 30 ° C. exposed to direct sunlight, and left for 60 minutes. And the temperature of the outermost surface of the roll after leaving outdoors was measured with the temperature sensor (the Testo Co., Ltd. make, model number 05609056). Here, assuming that the amount of change in roll temperature is T1 (° C.), it is defined as T1 = (film temperature after being left for 60 minutes) − (film temperature at room (25 ° C.)).
"Evaluation criteria"
A: T1 ≦ 7 ° C.
○: 7 ° C <T1 ≦ 10 ° C
Δ: 10 ° C <T1 ≦ 15 ° C
×: 15 ° C. <T1
 (チェーン状変形)
 作製した梱包体1~8を屋外で60分間放置した後に、フィルムロールの最表層にチェーン状の変形があるか否かを目視で確認した。そして、以下の評価基準に基づいて、チェーン状変形について評価した。
 《評価基準》
  ◎:変形は確認されなかった。
  ○:若干の変形が確認されたが、弾性変形のため、実用上問題はない。
  △:1~2本のチェーン状変形が確認された。
  ×:3本以上のチェーン状変形が確認された。
(Chain-like deformation)
After the produced packaging bodies 1 to 8 were left outdoors for 60 minutes, it was visually confirmed whether or not the outermost layer of the film roll had a chain-like deformation. The chain deformation was evaluated based on the following evaluation criteria.
"Evaluation criteria"
A: Deformation was not confirmed.
○: Some deformation was confirmed, but there is no practical problem due to elastic deformation.
Δ: 1 to 2 chain-like deformations were confirmed.
X: Three or more chain-like deformations were confirmed.
 表1に、梱包体1~8についての評価の結果を示す。なお、表1では、梱包体1~8と実施例または比較例との対応関係についても併せて示す。また、表中の梱包材の包装位置において、「上」、「下」、「横」は、それぞれ、フィルムロールの鉛直上方、鉛直下方、側方を覆う位置であることを示し、以下の表でも同様の表記を採用する。 Table 1 shows the results of evaluation for the packing bodies 1 to 8. Table 1 also shows the correspondence between the packing bodies 1 to 8 and the examples or comparative examples. In the packaging material packaging positions in the table, “upper”, “lower”, and “horizontal” indicate positions that cover the upper side, the lower side, and the side of the film roll, respectively. However, the same notation is adopted.
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000001
 表1より、実施例1~4では、フィルムロールの最表層において、チェーン状の変形が確認されていない。これは、実施例1~4の梱包体では、フィルムロールの鉛直上方または鉛直下方とフィルムロールの側方を覆うように、断熱性を有する梱包材で架台が覆われており、また、梱包材とフィルムロールとの間に熱伝達を抑える空隙層が存在していることから、これらの相乗効果で断熱性が高くなり、フィルムロールの急激な温度上昇が抑えられた結果、熱膨張によるチェーン状の変形が抑えられたためと考えられる。 From Table 1, in Examples 1 to 4, no chain-like deformation was confirmed in the outermost layer of the film roll. In the packaging bodies of Examples 1 to 4, the gantry is covered with a packaging material having heat insulating properties so as to cover the upper side or the lower side of the film roll and the side of the film roll. Since there is a void layer that suppresses heat transfer between the film roll and the film roll, the synergistic effect increases the heat insulation and suppresses the rapid temperature rise of the film roll. This is thought to be due to the suppression of deformation.
 これに対して、比較例1および2では、チェーン状の変形が確認されている。これは、フィルムロールの鉛直上方のみ、または鉛直下方のみを覆うように、断熱性を有する梱包材で架台を覆うだけでは、断熱効果が十分発揮されないため、フィルムロールの急激な温度上昇を抑えることが困難となり、熱膨張によってチェーン状の変形が生じたものと考えられる。 On the other hand, in Comparative Examples 1 and 2, chain-like deformation has been confirmed. This is to suppress the rapid temperature rise of the film roll, because the thermal insulation effect is not sufficiently exhibited only by covering the mount with the packaging material having heat insulation so as to cover only the upper part of the film roll or the lower part of the film roll. It is considered that chain-like deformation has occurred due to thermal expansion.
 また、比較例3では、断熱性を有する梱包材で架台を覆っていないことから、フィルムロールの急激な温度上昇が生じ、熱膨張によってチェーン状の変形が生じたものと考えられる。比較例4では、フィルムロールの最表層を、断熱性を有する包装材で覆っているが、結果的に、熱膨張によってチェーン状の変形が発生している。このことから、上記包装材でロールの最表層を覆うだけでは、ロール最表層と上記包装材との間に熱伝達を抑える空間を十分に確保できていないため、フィルムロールの急激な温度上昇を抑える効果が小さいと言える。 Further, in Comparative Example 3, since the mount is not covered with a heat-insulating packing material, it is considered that a rapid temperature increase of the film roll occurs and chain-like deformation occurs due to thermal expansion. In Comparative Example 4, the outermost layer of the film roll is covered with a heat-insulating packaging material. As a result, chain-like deformation occurs due to thermal expansion. For this reason, simply covering the outermost layer of the roll with the packaging material does not ensure a sufficient space for suppressing heat transfer between the outermost layer of the roll and the packaging material. It can be said that the suppressing effect is small.
 <梱包体9の作製>
 梱包体1の作製と同様にして、梱包体9を作製した。すなわち、梱包体9では、被覆率P=0%である。
<Production of packing body 9>
A packing body 9 was manufactured in the same manner as the manufacturing of the packing body 1. That is, in the package 9, the coverage rate P = 0%.
 <梱包体10~15の作製>
 フィルムロールの鉛直上方に加えて、フィルムロールを側方から覆うように、梱包材で架台を包装した以外は、梱包体1の作製と同様にして梱包体10~15を作製した。このとき、側面部の梱包材による被覆率Pが表2に示す値となるように、架台の鉛直方向の少なくとも一部を梱包材で包装して、梱包体10~15を作製した。なお、架台において上記梱包材で包装されていない部分は、梱包体1の作製で用いた透明シートと同じシートで包装した。
<Production of packaging bodies 10 to 15>
Packaging bodies 10 to 15 were produced in the same manner as for the packaging body 1 except that the base was wrapped with a packaging material so as to cover the film roll from the side in addition to the upper side of the film roll. At this time, at least a part of the gantry in the vertical direction was packaged with the packaging material so that the coverage P with the packaging material on the side surface became the value shown in Table 2, thereby producing packaging bodies 10 to 15. In addition, the part which is not packaged with the said packing material in a mount was packaged with the same sheet | seat as the transparent sheet used by preparation of the package 1. FIG.
 <評価>
 (ロール温度変化1)
 作製した梱包体9~15を、25℃の室内で保管した後、直射日光の当たる30℃の屋外に搬出し、60分間放置した。そして、屋外放置後のロールの最表面の温度を、上記温度センサで測定した。ここで、ロール温度の変化量をT1(℃)とすると、T1=(60分放置後のフィルム温度)-(室内時のフィルム温度(25℃))と定義する。
 《評価基準》
  ◎:T1≦7℃
  ○:7℃<T1≦10℃
  △:10℃<T1≦15℃
<Evaluation>
(Roll temperature change 1)
The produced packaging bodies 9 to 15 were stored in a room at 25 ° C., then taken out outdoors at 30 ° C. exposed to direct sunlight, and left for 60 minutes. And the temperature of the outermost surface of the roll after leaving outdoors was measured with the said temperature sensor. Here, assuming that the amount of change in roll temperature is T1 (° C.), it is defined as T1 = (film temperature after being left for 60 minutes) − (film temperature at room (25 ° C.)).
"Evaluation criteria"
A: T1 ≦ 7 ° C.
○: 7 ° C <T1 ≦ 10 ° C
Δ: 10 ° C <T1 ≦ 15 ° C
 (ロール温度変化2)
 上記のように、梱包体9~15を屋外で60分間放置した後、25℃の室内に戻して30分間放置した。そして、室内放置後のロールの最表面の温度を、上記温度センサで測定した。ここで、ロール温度の変化量T2(℃)を、T2=(室内に戻して30分後のフィルム温度)-(室内時のフィルム温度(25℃))と定義する。
 《評価基準》
  ◎:T2≦5℃
  ○:5℃<T2≦7℃
  △:7℃<T2
(Roll temperature change 2)
As described above, the packaging bodies 9 to 15 were left outdoors for 60 minutes, then returned to the room at 25 ° C. and left for 30 minutes. And the temperature of the outermost surface of the roll after leaving indoors was measured with the said temperature sensor. Here, the change amount T2 (° C.) of the roll temperature is defined as T2 = (film temperature 30 minutes after returning to the room) − (film temperature in the room (25 ° C.)).
"Evaluation criteria"
A: T2 ≦ 5 ° C.
○: 5 ° C <T2 ≦ 7 ° C
Δ: 7 ° C <T2
 (チェーン状変形)
 梱包体9~15を、25℃の室内に戻して30分間放置した後に、フィルムロールの最表層にチェーン状の変形があるか否かを目視で確認した。そして、以下の評価基準に基づいて、チェーン状変形について評価した。
 《評価基準》
  ◎:変形は確認されなかった。
  ○:若干の変形が確認されたが、弾性変形のため、実用上問題はない。
  △:1~2本のチェーン状変形が確認された。
(Chain-like deformation)
After the packaging bodies 9 to 15 were returned to the room at 25 ° C. and left for 30 minutes, it was visually confirmed whether or not the outermost layer of the film roll had a chain-like deformation. The chain deformation was evaluated based on the following evaluation criteria.
"Evaluation criteria"
A: Deformation was not confirmed.
○: Some deformation was confirmed, but there is no practical problem due to elastic deformation.
Δ: 1 to 2 chain-like deformations were confirmed.
 表2に、梱包体9~15についての評価の結果を示す。なお、表2では、梱包体9~15と実施例または比較例との対応関係についても併せて示す。 Table 2 shows the results of evaluation for packing bodies 9-15. Table 2 also shows the correspondence between the packing bodies 9 to 15 and the examples or comparative examples.
Figure JPOXMLDOC01-appb-T000002
Figure JPOXMLDOC01-appb-T000002
 表2に示すように、梱包体10~15については、屋外に曝露した直後において、ロールの温度上昇が抑えられており、その後、室内に戻して一定時間放置しても、チェーン状の変形は見られなかった。ただし、被覆率が50%よりも大きい梱包体13~15では、室内放置後にロールの弾性変形が確認された。これは、被覆率が大きい梱包体では、断熱性を有する梱包材で包装される面積が大きく、上記梱包材以外の透明フィルムで包装される面積が小さくなることから、梱包体内部の熱の外部への拡散(放熱)の効率が低下し、室内放置後も梱包体内部に熱がこもっているために生じたものと考えられる。ただし、弾性変形は、チェーン状の変形のような塑性変形とは異なり、ロールからフィルムを繰り出すと無くなるため(応力がなくなるため)、フィルムの使用時に問題となることはない。 As shown in Table 2, with respect to the packaging bodies 10 to 15, the temperature rise of the roll is suppressed immediately after being exposed to the outdoors. I couldn't see it. However, in the packaging bodies 13 to 15 having a coverage rate larger than 50%, it was confirmed that the roll was elastically deformed after being left indoors. This is because, in a package with a large coverage, the area to be packed with a heat-insulating packing material is large, and the area to be packed with a transparent film other than the above packing material is small. This is thought to be caused by the fact that the efficiency of diffusion (heat radiation) to the interior of the package decreased, and heat remained in the package after being left indoors. However, unlike plastic deformation such as chain-like deformation, elastic deformation disappears when the film is unwound from the roll (since stress is lost), and therefore does not cause a problem when the film is used.
 以上より、被覆率Pは、特に、梱包体を屋外に曝露した後、室内に戻したときのロールの弾性変形に影響し、被覆率Pが10%以上50%以下であれば、梱包材による断熱効果と、透明シートによる放熱効果とをバランスよく得て、上記弾性変形を抑える効果が高いと言える。 From the above, the coverage P particularly affects the elastic deformation of the roll when the package is exposed outdoors and then returned to the room. If the coverage P is 10% or more and 50% or less, it depends on the packaging material. It can be said that the effect of suppressing the elastic deformation is high by obtaining a good balance between the heat insulation effect and the heat radiation effect by the transparent sheet.
 なお、被覆率Pが0%の梱包体9では、梱包体9を屋外に60分間曝露した時点でロール最表層にチェーン状の変形が生じており、その後、梱包体9を室内に戻しても、そのチェーン状の変形が残っていることが確認された。 In addition, in the package 9 having a coverage P of 0%, chain-like deformation occurs on the outermost layer of the roll when the package 9 is exposed to the outdoors for 60 minutes, and then the package 9 is returned to the room. It was confirmed that the chain-like deformation remained.
 <梱包体16の作製>
 梱包体1の作製で用いたフィルムロールの最表層を包装材(断熱シート)で覆い、この状態でフィルムロールを図2の架台に収容した。上記包装材としては、梱包体1の作製で用いた梱包材と同一材料の金属シート(日本マタイ株式会社製、厚み30μm)を用いた。そして、上記架台を、梱包体11の作製と同様にして(被覆率P=30%となるように)、梱包材で包装し、梱包体16を作製した。したがって、梱包体16では、梱包材の厚み=包装材の厚み=30μm、である。
<Preparation of packing 16>
The outermost layer of the film roll used in the production of the package 1 was covered with a packaging material (heat insulating sheet), and in this state, the film roll was accommodated in the gantry of FIG. As the packaging material, a metal sheet (manufactured by Nippon Matai Co., Ltd., thickness 30 μm) made of the same material as the packaging material used in the production of the package 1 was used. And the said base was packaged with the packaging material similarly to preparation of the package 11 (coverage rate P = 30%), and the package 16 was produced. Therefore, in the package 16, the thickness of the packaging material = the thickness of the packaging material = 30 μm.
 <梱包体17~19の作製>
 梱包材の厚みおよび包装材の厚みを表3のように変更した以外は、梱包体16の作製と同様にして、梱包体17・19を作製した。また、上述した梱包体11の作製と同様にして、フィルムロールの最表層を包装材で覆っていない梱包体18を作製した。
<Production of packing bodies 17 to 19>
Packaging bodies 17 and 19 were produced in the same manner as the packaging body 16 except that the thickness of the packaging material and the thickness of the packaging material were changed as shown in Table 3. Moreover, it carried out similarly to preparation of the package 11 mentioned above, and produced the package 18 which has not covered the outermost layer of the film roll with the packaging material.
 <評価>
 (ロール温度変化1)
 作製した梱包体16~19を、25℃の室内で保管した後、直射日光の当たる30℃の屋外に搬出し、60分間放置した。そして、屋外放置後のロールの最表面の温度を、上記温度センサで測定した。ここで、ロール温度の変化量をT1(℃)とすると、T1=(60分放置後のフィルム温度)-(室内時のフィルム温度(25℃))と定義する。
 《評価基準》
  ◎:T1≦7℃
  ○:7℃<T1≦10℃
  △:10℃<T1≦15℃
<Evaluation>
(Roll temperature change 1)
The produced packaging bodies 16 to 19 were stored in a room at 25 ° C., then taken out outdoors at 30 ° C. exposed to direct sunlight, and left for 60 minutes. And the temperature of the outermost surface of the roll after leaving outdoors was measured with the said temperature sensor. Here, assuming that the amount of change in roll temperature is T1 (° C.), it is defined as T1 = (film temperature after being left for 60 minutes) − (film temperature at room (25 ° C.)).
"Evaluation criteria"
A: T1 ≦ 7 ° C.
○: 7 ° C <T1 ≦ 10 ° C
Δ: 10 ° C <T1 ≦ 15 ° C
 (ロール温度変化3)
 上記梱包体16~19を、30℃の屋外にさらに30分間放置し(合計90分間放置)、その後のロールの最表面の温度を、上記温度センサで測定した。ここで、ロール温度の変化量をT3(℃)とすると、T3=(90分放置後のフィルム温度)-(室内時のフィルム温度(25℃))と定義する。
 《評価基準》
  ◎:T3≦10℃
  ○:10℃<T3
(Roll temperature change 3)
The packaging bodies 16 to 19 were left for an additional 30 minutes outdoors at 30 ° C. (for 90 minutes in total), and the temperature of the outermost surface of the subsequent rolls was measured with the temperature sensor. Here, when the change amount of the roll temperature is T3 (° C.), it is defined as T3 = (film temperature after being left for 90 minutes) − (film temperature at room (25 ° C.)).
"Evaluation criteria"
A: T3 ≦ 10 ° C.
○: 10 ° C. <T3
 (ロール温度変化4)
 上記梱包体16~19を、30℃の屋外にさらに30分間放置し(合計120分間放置)、その後のロールの最表面の温度を、上記温度センサで測定した。ここで、ロール温度の変化量をT4(℃)とすると、T4=(120分放置後のフィルム温度)-(室内時のフィルム温度(25℃))と定義する。
 《評価基準》
  ◎:T4≦10℃
  ○:10℃<T4≦15℃
  △:15℃<T4
(Roll temperature change 4)
The packaging bodies 16 to 19 were left for an additional 30 minutes outdoors at 30 ° C. (for a total of 120 minutes), and the temperature of the outermost surface of the subsequent rolls was measured with the temperature sensor. Here, when the change amount of the roll temperature is T4 (° C.), it is defined as T4 = (film temperature after standing for 120 minutes) − (film temperature at room (25 ° C.)).
"Evaluation criteria"
A: T4 ≦ 10 ° C.
○: 10 ° C <T4 ≦ 15 ° C
Δ: 15 ° C. <T4
 (チェーン状変形)
 作製した梱包体16~19を屋外で合計120分間放置した後に、フィルムロールの最表層にチェーン状の変形があるか否かを目視で確認した。そして、以下の評価基準に基づいて、チェーン状変形について評価した。
 《評価基準》
  ◎ :変形は確認されなかった。
  ○○:一部の範囲で若干の変形が確認されたが、弾性変形のため、実用上問題はない。
  ○ :広い範囲で若干の変形が確認されたが、弾性変形のため、実用上問題はない。
(Chain-like deformation)
After the produced packaging bodies 16 to 19 were left outdoors for a total of 120 minutes, it was visually confirmed whether or not the outermost layer of the film roll had a chain-like deformation. The chain deformation was evaluated based on the following evaluation criteria.
"Evaluation criteria"
A: Deformation was not confirmed.
◯: Slight deformation was confirmed in a certain range, but there is no practical problem because of elastic deformation.
○: Some deformation was confirmed in a wide range, but there is no practical problem because of elastic deformation.
 表3に、梱包体16~19についての評価の結果を示す。なお、表3では、梱包体16~19と実施例または比較例との対応関係についても併せて示す。 Table 3 shows the results of evaluation for the packing bodies 16-19. Table 3 also shows the correspondence between the packing bodies 16 to 19 and the examples or comparative examples.
Figure JPOXMLDOC01-appb-T000003
Figure JPOXMLDOC01-appb-T000003
 表3に示すように、梱包体16~19のいずれについても、屋外に曝露してから60分後、90分後、120分後において、ロールの温度上昇が抑えられており、チェーン状の変形は見られなかった。ただし、包装材の厚みが梱包材の厚み以下であると、屋外に曝露する時間が長くなるにつれて、ロールの温度上昇が起こり、弾性変形が生じやすくなっていることがわかる。これは、包装材の厚みが薄いと、包装材による断熱効果が低下して、ロールの温度上昇が生じやすくなるためと考えられる。したがって、ロールの弾性変形を抑える点では、包装材の厚みは梱包材の厚みよりも大きいことが望ましいと言える。 As shown in Table 3, in any of the packing bodies 16 to 19, the temperature rise of the roll was suppressed 60 minutes, 90 minutes, and 120 minutes after being exposed to the outdoors, and the chain-like deformation Was not seen. However, when the thickness of the packaging material is equal to or less than the thickness of the packaging material, it can be seen that the temperature of the roll rises and the elastic deformation tends to occur as the time of outdoor exposure increases. This is presumably because if the thickness of the packaging material is thin, the heat insulating effect of the packaging material is lowered, and the temperature of the roll is likely to increase. Therefore, it can be said that the thickness of the packaging material is desirably larger than the thickness of the packaging material in terms of suppressing the elastic deformation of the roll.
 なお、梱包材および包装材として、梱包体8の作製で用いた断熱シート(金属膜付き気泡緩衝シート)を用い、梱包材および包装材の厚みを梱包体16~19と同様に変化させて、上記と同様に屋外曝露後のロールの温度および変形の有無を確認したところ、表3と同様の結果が得られた。 As the packaging material and the packaging material, the heat insulating sheet (bubble cushion sheet with a metal film) used in the production of the packaging body 8 was used, and the thickness of the packaging material and the packaging material was changed in the same manner as the packaging bodies 16 to 19, When the roll temperature after outdoor exposure and the presence or absence of deformation were confirmed in the same manner as described above, the same results as in Table 3 were obtained.
 なお、以上の実施例では、フィルムロールを構成する光学フィルムとしてTACフィルムを用いているが、TAC以外のセルロースエステル樹脂、シクロオレフィン樹脂、ポリイミド樹脂、ポリアリレート樹脂などを用いて光学フィルムを製膜し、その光学フィルムを巻回してフィルムロールを構成し、架台および梱包材と組み合わせて梱包体を構成した場合でも、上述した実施例と同様の傾向があることが確認された。 In the above examples, a TAC film is used as an optical film constituting the film roll. However, an optical film is formed using a cellulose ester resin, a cycloolefin resin, a polyimide resin, a polyarylate resin, etc. other than TAC. And even when the optical film was wound and the film roll was comprised and it combined with the mount frame and the packaging material, it was confirmed that there exists a tendency similar to the Example mentioned above.
 〔補足〕
 以上、本発明の実施形態につき説明したが、本発明の範囲はこれに限定されるものではなく、発明の主旨を逸脱しない範囲で種々の変更を加えて実施することができる。
[Supplement]
Although the embodiments of the present invention have been described above, the scope of the present invention is not limited to these embodiments, and various modifications can be made without departing from the spirit of the invention.
 以上で説明した本実施形態のフィルムロールの梱包体は、以下のように表現することができる。 The film roll package of the present embodiment described above can be expressed as follows.
 1.熱可塑性樹脂からなる長尺状の光学フィルムを巻芯の周りに巻回した巻回体であるフィルムロールと、
 前記フィルムロールを、前記巻芯を介して、該ロールの最表層が他と非接触となるように、内部に保持することのできる架台と、
 断熱性を有し、前記フィルムロールの鉛直上方または鉛直下方を覆うように前記架台を包装するとともに、前記架台の鉛直方向の少なくとも一部を、前記フィルムロールを側方から覆うように包装する梱包材とを備えていることを特徴とするフィルムロールの梱包体。
1. A film roll which is a wound body in which a long optical film made of a thermoplastic resin is wound around a core;
A stand that can be held inside the film roll via the winding core so that the outermost layer of the roll is in non-contact with the other;
Packaging that has heat insulation and wraps the gantry so as to cover vertically above or vertically below the film roll, and wraps at least part of the gantry vertically so as to cover the film roll from the side. A roll of film rolls, characterized by comprising a material.
 2.前記架台の鉛直方向の長さをH(mm)とし、前記架台の鉛直方向の少なくとも一部を包装する前記梱包材の鉛直方向の長さをX(mm)としたとき、
 以下の式で規定される被覆率Pが、10%以上50%以下であることを特徴とする前記1に記載のフィルムロールの梱包体;
   P=(X/H)×100
である。
2. When the vertical length of the gantry is H (mm), and the vertical length of the packing material for packaging at least a part of the vertical direction of the gantry is X (mm),
Covering rate P prescribed | regulated by the following formula | equation is 10% or more and 50% or less, The package body of the film roll of said 1 characterized by the above-mentioned;
P = (X / H) × 100
It is.
 3.断熱性を有し、前記フィルムロールの最表層の少なくとも一部を覆う包装材を備え、
 前記包装材の厚みは、前記梱包材の厚みよりも大きいことを特徴とする前記1または2に記載のフィルムロールの梱包体。
3. It has heat insulating properties, and includes a packaging material that covers at least a part of the outermost layer of the film roll,
The packaging body for a film roll according to 1 or 2, wherein a thickness of the packaging material is larger than a thickness of the packaging material.
 本発明は、フィルムロールを架台の内部に収容し、梱包材によって架台を包装するフィルムロールの梱包体に利用可能である。 The present invention can be used for a film roll packaging body in which a film roll is accommodated inside a gantry and the gantry is packaged by a packing material.
   1   梱包体
   2   フィルムロール
   2a  軸芯
   2b  最表層
   3   架台
   5   包装材
  10   光学フィルム
  41   梱包材
DESCRIPTION OF SYMBOLS 1 Packing body 2 Film roll 2a Shaft core 2b Outermost layer 3 Mount 5 Packaging material 10 Optical film 41 Packaging material

Claims (3)

  1.  熱可塑性樹脂からなる長尺状の光学フィルムを巻芯の周りに巻回した巻回体であるフィルムロールと、
     前記フィルムロールを、前記巻芯を介して、該ロールの最表層が他と非接触となるように、内部に保持することのできる架台と、
     断熱性を有し、前記フィルムロールの鉛直上方または鉛直下方を覆うように前記架台を包装するとともに、前記架台の鉛直方向の少なくとも一部を、前記フィルムロールを側方から覆うように包装する梱包材とを備えている、フィルムロールの梱包体。
    A film roll which is a wound body in which a long optical film made of a thermoplastic resin is wound around a core;
    A stand that can be held inside the film roll via the winding core so that the outermost layer of the roll is in non-contact with the other;
    Packaging that has heat insulation and wraps the gantry so as to cover vertically above or vertically below the film roll, and wraps at least part of the gantry vertically so as to cover the film roll from the side. A film roll package comprising a material.
  2.  前記架台の鉛直方向の長さをH(mm)とし、前記架台の鉛直方向の少なくとも一部を包装する前記梱包材の鉛直方向の長さをX(mm)としたとき、
     以下の式で規定される被覆率Pが、10%以上50%以下である、請求項1に記載のフィルムロールの梱包体;
       P=(X/H)×100
    である。
    When the vertical length of the gantry is H (mm), and the vertical length of the packing material for packaging at least a part of the vertical direction of the gantry is X (mm),
    The film roll package according to claim 1, wherein the coverage P defined by the following formula is 10% or more and 50% or less;
    P = (X / H) × 100
    It is.
  3.  断熱性を有し、前記フィルムロールの最表層の少なくとも一部を覆う包装材を備え、
     前記包装材の厚みは、前記梱包材の厚みよりも大きい、請求項1または2に記載のフィルムロールの梱包体。
    It has heat insulating properties, and includes a packaging material that covers at least a part of the outermost layer of the film roll,
    The packaging body of the film roll of Claim 1 or 2 whose thickness of the said packaging material is larger than the thickness of the said packaging material.
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