JP2020050402A - Film reel assembly package - Google Patents

Abstract

To provide a film reel collective package which reduces the work time required for mounting binding bands, and suppresses generation of abrasion powder from the film reel package during transportation.SOLUTION: A film reel package 10 is composed of film wound bodies 20 consisting of a cylindrical core and film wound around the core and holding members which are provided respectively on both ends in the axial direction of the outer tube covering them and the core and hold the film wound bodies. Of multiple film reel packages stacked on a pallet 61, for each combination of all two film reel packages that are adjacent to each other on the outer periphery of the collective bodies except for the film reel packages belonging to both sides, binding bands 70 are arranged so as to pass through both the core of one film reel package and the core of the other film reel package, the two adjacent film reel packages are fixed, and multiple film reel packages on at least a part of the pallet are covered with stretch film.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a film reel assembly package in which a plurality of film reel packages are packed as a single unit for transportation.

  When transporting a long film, that is, a web, for example, between two points, the film is transported by winding the film around a cylindrical core. A paperboard cylinder is often used as the core. A film obtained by winding a film around a cylindrical core is called a film roll. In order to prevent the peripheral surface or side surface of the film roll from touching the ground or coming into contact with other objects during transportation, a pair of brim-like holding members (such as a protector, a plough, a receiver or a support member) ) Is often used to form a film reel package. The film reel package is also called a scroll unit or the like. By using the film reel package, it becomes possible to transport the film wound body suspended in the air while being placed horizontally. Retaining members used for this purpose are also commercially available. The holding member has a plate-shaped portion which is a thick plate-shaped member, and further, a plug (supporting portion) protruding from the center of the plate-shaped portion so as to engage with an opening at an end of a cylindrical core. Are formed. The plug is generally formed in a substantially cylindrical shape. As a result, the holding members can be attached to both ends of the core such that the plug is inserted into the opening at the end of the core. Also, in many cases, a through hole is formed in the plate-shaped portion so as to communicate with the inside of the plug corresponding to the position where the plug is formed. Therefore, in the film reel package, a tunnel-like space with both ends open is formed by the through hole of one holding member, the inner surface of the core, and the through hole of the other holding member. Examples of such a holding member are disclosed in Patent Documents 1 and 2.

  When a holding member is attached to each end of the core to form a film reel package, there is a possibility that the holding member may fall off the core due to vibration or swing during long-distance transportation of the film reel package, or a plate-like portion of the holding member. A gap may be formed between the surface of the core and the end of the core, and the core may move in the longitudinal direction or the circumferential direction. Patent Documents 1 and 2 also disclose that a binding band, which is a cord-like member, is wound around both holding members to fix the holding member to the core. In particular, Patent Document 1 discloses two attachment methods for a binding band. One is a method of winding one binding band so as to pass through the outside of the film winding body and straddle both holding members as shown in FIG. 2 of Patent Document 1. On the other hand, as shown in FIG. 5 of Patent Document 1, it is assumed that a through hole communicating with the inside of the core is formed in the holding member, and the holding member passes through the inside of the core and is opposite to each other at the position of the through hole. This is a method using two binding bands provided to face each other. Also in this method, each tie band is wrapped around both holding members. However, Patent Documents 1 and 2 disclose only a method of fixing a single film reel package with a binding band, and Patent Document 1 discloses a plurality of film reel packages on a pallet for transportation. It is also disclosed that a film reel assembly package is manufactured by stacking film reel packages individually fixed with a binding band even when stacking, which disadvantageously increases the work time required for attaching the binding band. is there.

  In addition, by configuring the film reel package using the holding member, the film roll can be suspended and transported. However, simply holding the film roll in the air does not sufficiently prevent the film from being damaged or foreign matter from being adhered when transporting the film roll. Therefore, an exterior film or an exterior sheet that covers the wound film is provided. The exterior film or the exterior sheet may be provided so as to be wound around the wound film, but Patent Document 3 discloses using a tubular exterior film as the exterior film. When attaching the holding member to a film wound body covered with a tube-shaped exterior film, for example, the end of the exterior film as a tube is folded and inserted into the opening at the end of the core, and then the opening of the core is opened. It is conceivable to insert a plug of the holding member into the plug. In this case, the exterior film is interposed between the outer periphery of the plug inserted into the opening of the core and the inner wall of the core. In the following description, an exterior film formed in a tube shape is referred to as an exterior tube.

  When transporting a plurality of film reel packages configured as described above, a plurality of film reel packages are placed on a wooden or plastic transport pallet such that the rotation axis of the film roll is horizontal. Are stacked, and further covered with a stretch film (also referred to as a shrink film) in order to prevent collapse of the load and the like to form a film reel collective package. In order to cope with stacking of film reel packages, a commercially available holding member is engaged with a plate of another holding member of the same shape so that it can be connected to the plate. Some parts are formed.

JP 2003-206072 A JP 2009-84002 A JP-A-11-43180

  In the film reel package, the holding member may fall off the core due to vibration or swinging during long-distance transport, or a gap may occur between the surface of the plate-shaped portion of the holding member and the end of the core, and the core may be moved in the longitudinal direction. Alternatively, a binding band is attached to prevent movement in the circumferential direction, but the attaching operation of the binding band is difficult to completely automate, and it has to be manually performed over time. On the other hand, when the film reel package is stacked on a transport pallet to form a film reel assembly package, it is covered with a stretch film to prevent collapse of the load, but the holding member falls off the core in this stretch film. And a gap is formed between the surface of the plate-shaped portion of the holding member and the end of the core, and the effect of preventing the core from moving in the longitudinal direction or the circumferential direction can be expected. Therefore, by eliminating the use of the binding band in each film reel package on the assumption that the stretch film is used, it is considered that the working time can be significantly reduced.

  By the way, some films conveyed by the film reel package are used in a clean room or the like, and a film roll is often carried into the clean room. Therefore, it is necessary to suppress dust generation from the film reel package. However, when a plurality of film reel packages are transported over a long distance as a film reel assembly package without using a binding band in the film reel package, abrasion powder is generated from the outer film, the holding member, and the core, and the inner surface of the core is removed. May adhere to Wear powder attached to the inner surface of the core causes dust generation.

  An object of the present invention is to provide a film reel assembly package in which the generation of abrasion powder from the film reel package during transportation is reduced while shortening the operation time required for attaching a string-shaped member such as a binding band. is there.

  The film reel assembly package of the present invention is a film wound body including a cylindrical core and a film wound around the core, and an outer tube that covers the film wound body so as to include the film wound body therein. Holding members that are disposed at both ends in the axial direction of the core and hold the film wound body, respectively, wherein the holding member is a plate-shaped portion, and protrudes from the plate-shaped portion at the axial end of the core. A supporting portion having a hole penetrating through the plate-shaped portion, the holding member being attached to the film winding body by inserting the supporting portion into the opening. A film reel package comprising a film reel package, and a plurality of film reel packages are connected to each other via a plate-like portion and stacked on a transport pallet. Film reel package The film reel package is stacked on the pallet in three or more rows and two or more stages, with the horizontal arrangement of the film reel package as a row and the height arrangement as a row. For each combination of two film reel packages adjacent to each other on the outer periphery of the assembly constituted by excluding the film reel packages belonging to the rows on both sides of the plurality of film reel packages thus obtained, Through the hole at one end of the one film reel package, the inside of the core of one film reel package and the hole at the other end of one film reel package, and Holes at the other end of the other film reel package, inside the core of the other film reel package and one end of the other film reel package. And a string-shaped member guided to pass through and fix one film reel package and the other film reel package to each other, and include a plurality of film reel packages including at least a part of a transport pallet. The body is covered with a stretch film.

  ADVANTAGE OF THE INVENTION According to this invention, these two film reel packages are mutually fixed by hanging a string-shaped member so that it may straddle two adjacent film reel packages in a film reel assembly package, By limiting the film reel package to which is attached, it is possible to reduce the generation of abrasion powder from the film reel package during transportation while shortening the operation time required for attaching a string-shaped member such as a binding band.

It is a figure showing composition of a film reel package. It is a front view which shows a film reel assembly package. FIG. 3 is a diagram illustrating the generation of wear powder. It is a side view explaining the mechanism estimated to generate | occur | produce a wear powder. BRIEF DESCRIPTION OF THE DRAWINGS It is a front view which shows the film reel collective package of one Embodiment of this invention. It is a figure which shows the structure of the principal part of the film reel package which made three tube materials.

  Next, an embodiment for carrying out the present invention will be described with reference to the drawings. Before describing the film reel assembly package according to the present invention, a general film reel package will be described with reference to FIG.

  As shown in the upper part of FIG. 1, a film roll 20 is formed by winding a long film 22 around a cylindrical core 21. The core 21 is formed of, for example, paperboard. The direction in which the rotation axis extends when the film 22 is wound around the core 21 will be referred to as the axial direction of the core 21. Both ends in the axial direction of the core 21 are openings 23. The wound film 22 is, for example, a polymer film, and is, for example, a polyolefin film used as a battery separator film disposed between a positive electrode and a negative electrode in a lithium ion secondary battery. Since surface treatment and processing performed by unwinding the battery separator film from the film winding body 20 are generally performed in a clean room, it is necessary to suppress the dust generation of the film winding body 20 wound with the battery separator film.

  The film roll 20 is covered with an outer tube 40 for its protection. The outer tube 40 is a cylindrical polymer film having openings at both ends in the axial direction of the core 21, and the film roll 20 is accommodated inside the outer tube 40. The outer tube 40 is made of a flexible and easily deformable material such as polyethylene or polypropylene. The outer tube 40 may be one in which one of both ends along the axial direction of the core 21 is closed, that is, an elongated bag shape. When referred to as the outer tube 40 in the present specification, a bag-shaped tube is also included.

  The film reel package 10 has a pair of holding members 30 attached to the film winding body 20 covered with the outer tube 40 in order to prevent the ground and other objects from contacting the film winding body 20. The film roll 20 is held by 30. The upper diagram in FIG. 1 shows the film roll 20, the holding member 30, and the outer tube 40 before assembling the film reel package 10. The holding member 30 includes a plate-shaped portion 31 that is a thick plate-shaped member, and a plug (supporting portion) 32 provided at the center of the plate-shaped portion 31 and protruding from the plate-shaped portion 31. It is formed from a large synthetic resin. The plate-shaped portion 31 has, for example, a square shape, and the length of one side thereof is larger than the maximum diameter of the film roll 20. Although not shown in FIG. 1, an engagement portion is formed on each side of the plate-shaped portion 31 so that it can be connected to a plate-shaped portion of another holding member having the same shape. . In the illustrated holding member 30, the plug 32 is provided as a substantially cylindrical member having a hole 34 penetrating the plate-shaped portion 31. The outer diameter of the plug 32 is slightly smaller than the inner diameter of the core 21 and can be freely inserted into the opening 23 at the end of the core 21.

  When the plug 32 of the holding member 30 is inserted into the opening 23 of the core 21 to complete the film reel package 10, both ends of the outer tube 40 in the axial direction of the core 21 are It is housed in the opening 23 of the core 21. As a result, inside the opening 23 of the core 21, the end of the outer tube 40 is interposed between the core 21 and the plug 32 of the holding member 30.

  FIG. 2 shows a film reel assembly package formed by stacking a plurality of the film reel packages 10 shown in FIG. The film reel assembly package is formed by connecting a plurality of film reel packages 10 to each other via a plate-shaped portion 31 of the holding member 30 of each film reel package 10 on a transport pallet 61. It is. In the following description, regarding the film reel assembly package, the horizontal arrangement of the film reel package 10 on the pallet 61 is referred to as a row, and the vertical arrangement is referred to as a column. Therefore, the film reel package 10 of the same row is composed of a plurality of film reel packages 10 arranged in the vertical direction, and the film reel package 10 of the same stage is composed of a plurality of film reel packages 10 arranged in the horizontal direction. It is composed of a body 10. In the illustrated example, four film reel packages 10 are arranged in four rows and three stages in the height direction, that is, four film reel packages 10 are arranged in the horizontal direction, and three film reel packages 10 are arranged in the vertical direction. And 12 film reel packages 10 are placed on the pallet 61. A frame member 62 is provided on the upper surface of the pallet 61 in a frame shape so as to surround the mounting position of the film reel package 10 so that the film reel package 10 does not move horizontally on the pallet 61. Further, in order to prevent collapse of the load during long-distance transportation, reduce the influence of a heavy falling object from above, and prevent entry of foreign matter, the top plate 63 is so covered as to cover the upper surface of the stacked film reel package 10. And a plurality of film reel packages 10 including at least a part of the top plate 63 are covered with a stretch film 64. The stretch film 64 covers at least a part of the pallet 61 and is fixed to the pallet 61. In the illustrated example, the effect that the stretch film 64 presses the holding member 30 in the axial direction of the core 21 in each film reel package 10 is expected, whereby the holding member 30 falls off the core 21 and the holding member 30 Since it is considered that a gap is formed between the surface of the plate-shaped portion 31 and the end of the core 21 to prevent the core 21 from moving in the longitudinal direction or the circumferential direction, the individual film reel package 10 has No tie bands were used. However, when the stretch film 64 covers the side surface of the film reel assembly package of the 12 film reel packages 10 as shown in FIG. The film reel package 10 is attached to the outermost periphery of the film reel 10 and is fixed to the film reel packages 10 belonging to the rows on both sides so as to exert an effect of pressing the holding member 30 in the direction of the core 21. Since the dimensional accuracy of the engaging portion is not good, a phenomenon that a gap is generated between the surface of the plate-shaped portion 31 of the holding member 30 and the end of the core 21 in the film reel package 10 in the center two rows. To be observed.

  According to the knowledge of the present inventors, the film reel package 10 is configured by using, for example, a single-layer polyethylene film or polypropylene film having a thickness of about 10 μm to 50 μm as the outer tube 40 of the film reel package 10, Further, when transported over long distances in a film reel assembly package as described with reference to FIG. 2, abrasion powder derived from the core 21, the holding member 30, and the outer tube 40 is generated in each film reel package 10, Wear powder sometimes adhered to the inner surface of the core 21. The present inventors have studied the mechanism of the formation of wear powder, and have obtained the following conclusions.

  The upper part of FIG. 3 shows the vicinity of the end of the core 21 in the film reel package 10 in an enlarged manner. The plug 32 of the holding member 30 is formed in a substantially cylindrical shape as described above, and the outer peripheral surface of the plug 32 increases the strength of the plug 32 and facilitates insertion of the plug 32 into the opening 23 of the core 21. Are formed, a plurality of ribs 33 are formed. The maximum outer diameter of the plug 32 refers to the maximum value of the outer diameter of the plug when considering the rib 33 as well. FIG. 4 shows a state in which the film reel packages 10 stacked in three stages on the pallet 61 are viewed from the side. For illustrative purposes, FIG. 4 does not show the stretch film 64. In FIG. 4, the broken line indicates the position of the holding member 30 in each film reel package 10 when not vibrating. When this film reel package is transported by truck, even if it is covered with a stretch film or the like, the upper film reel package 10 vibrates in the horizontal plane direction, and the holding member of the lower film reel package 10 is held. Since the weight of the upper and middle film reel packages 10 acts on 30, the inclination of the holding member 30 becomes larger than that of the upper side. The form of the film reel package 10 is preferably applied with the weight of the film roll 20 of 10 kg to 50 kg in view of the load resistance of the holding member 30. When the film reel package 10 vibrates during transport, local stress concentration occurs between the rib 33 and the inner surface of the core 21 due to the large inclination of the holding member 30 of the lower film reel package 10. In addition, a shift occurs between the direction in which the plug 32 extends and the axial direction of the core 21. This displacement is observed as a gap between the surface of the plate-shaped portion 31 of the holding member 30 and the end of the core 21 at the base position of the plug 32. As a result, as shown by reference numeral 50 in the lower part of FIG. 3, a break occurs in the outer tube 40, and at the position of the break, the outer peripheral surface of the plug 32, in particular, the rib 33 and the inner surface of the core 21 directly contact and rub. As a result, wear powder derived from the core 21 and the holding member 30 is generated. Pieces of the torn outer tube 40 can also become wear powder. This forming mechanism corresponds to the fact that the lower one of the film reel packages 10 stacked on the pallet 61 generates more abrasion powder.

  In order to suppress the generation of abrasion powder, the tightening force when the core 21 is sandwiched by the holding members 30 on both sides in the film reel package 10 is increased, and the gap between the surface of the plate-shaped portion 31 and the end of the core 21 is increased. It is thought that it suffices to avoid the occurrence. The use of a tie band is effective to increase the tightening force, but the use of the tie band lengthens the working time when configuring the film reel assembly package.

  Therefore, the present inventors have studied the use of a binding band but reducing the number of used binding bands, and completed the present invention. That is, in the film reel assembly package according to the present invention, a plurality of film reel packages 10 are connected to each other via the plate-shaped portion 31 of the holding member 30 on the pallet 61 for conveyance, and are arranged in three or more rows. An outer periphery of a group of film reel packages packed in two or more stages, excluding the film reel packages 10 belonging to both rows of the plurality of loaded film reel packages 10. The two film reel packages 10 are fixed with a string-like member for every combination of two film reel packages 10 adjacent to each other. More specifically, the inner film 21 passes through both the inside of the core 21 of the one film reel package 10 and the inside of the core 21 of the other film reel package 10 of the two adjacent film reel packages 10. Through the string-like member. As a result, the string-like member passes through the inside of the core 21 and the hole 34 at the other end from the hole 34 at one end of the one film reel package 10 and then passes through the hole 34 at the other end. After passing through the hole 34 at the other end of the body 10, the inside of the core 21, and the hole 34 at the one end, the circuit 10 is rotated around to reach the hole 34 on one side of the film reel package 10. Will do. In the film reel assembly package, a plurality of film reel packages stacked on the pallet 61 including at least a part of the transport pallet 61 are covered with the stretch film 64. In order to secure a more stable fixation, reduce the influence of weight dropping objects from above, and prevent foreign substances from being mixed, a top plate 63 that covers a plurality of film reel packages 10 is further provided. It is preferable to cover the plurality of film reel packages 10 including at least a part of the top plate 63. As the string-like member, a binding band made of polypropylene generally used for packing can be preferably used.

  FIG. 5 shows a specific example of a film reel assembly package according to the present invention. Here, a binding band 70 made of polypropylene is used as the string-shaped member. In FIG. 5, the film reel assembly package indicated by reference numeral 15A is a package in which a total of 12 film reel packages 10 are stacked in four rows and three tiers on a pallet 61 for conveyance. For explanation, the lowermost film reel package 10 is represented by A, B, C, D from the left end in the figure, and the second film reel package 10 is represented by E, F, G, H from the left end in the figure. The upper film reel package 10 is represented by I, J, K, and L from the left end in the figure. In this case, if the rows at both ends are removed, the film reel package 10 (B, C, F, G, J, and K film reel packages 10), that is, the aggregate, remains in the middle two rows and three stages. Becomes Considering the two-row three-stage film reel package 10, for each two adjacent film reel packages 10 on the outer periphery, the two adjacent film reel packages 10 are used for the two film reel packages 10. They are fixed to each other by one binding band 70 passing through the inside of the core 21. Assuming that the notation “XY” indicates that the adjacent X and Y film reel packages 10 are fixed to each other by the binding bands 70, here, BC, B, and C are provided by the six binding bands 70. It is fixed as CG, GK, JK, FJ, BF. The film reel packages 10 indicated by F and G in the second row are adjacent to each other, but are not adjacent to each other on the outer periphery of the assembly. Is not provided with a binding band 70.

  In FIG. 5, a film reel assembly package denoted by reference numeral 15B is a package in which a total of nine film reel packages 10 are stacked in three rows and three stages on a pallet 61 for conveyance. This film reel package 15B is obtained by removing the rightmost film reel package 10 (film reel package 10 indicated by D, H, L) from the film reel package 15A. Excluding the rows at both ends in the film reel assembly package 15B, one row of the film reel package 10 represented by B, F, and J remains. As a combination of the two film reel packages 10 adjacent to each other on the outer periphery in the one-row film reel package 10, combinations of the film reel packages 10 indicated by B and F and F and J are indicated. For each combination, which is a combination of the film reel packages 10, the two film reel packages 10 are fixed to each other by the binding band 70 as represented by BF and FJ.

  Although not shown here, when the film reel packages 10 are stacked on the pallet 61 in four rows and two layers, the film reel package 10 (I, J, K, Since the film reel package 10) denoted by L is removed, they are fixed to each other by the binding hand 70 as represented by BC, CG, FG, and BF. . Similarly, when the film reel package 10 is stacked on the pallet 61 in three rows and two stages, the film reel package 10 (I, J, and K shown by I, J, and K) moves from the film reel assembly package 15B. Since this is the case excluding 10), they are fixed to each other by the binding hand 70 as indicated by BF.

  In the film reel assembly package according to the present invention, even when the outer tube 40 provided in each film reel package 10 is formed of a single-layer tube material, for example, the binding bands 70 are arranged as shown in FIG. By doing so, it is possible to suppress the generation of abrasion powder after long-distance transportation while shortening the time required for bundling by the bundling band 70, but more effectively by configuring the outer tube 40 with three or more layers of tube material. It becomes possible to suppress the generation of wear powder. Hereinafter, the case where the outer tube 40 is formed of three or more layers of tube material will be described.

  The abrasion powder is generated due to the breakage of the outer tube 40. Considering the generation mechanism, when the core 21 and the plug 32 move in different directions and in different amounts under a load, the tensile force is applied to the outer tube 40. It can be guessed that the force acts and breaks. Therefore, a sliding surface is provided in the outer tube 40, and when the movement of the core 21 and the movement of the plug 32 are in different directions and in different amounts, the difference is absorbed by the sliding surface, so that the outer tube 40 can be prevented from being broken. It is considered something. In order to provide a sliding surface, the exterior tube 40 may be formed of a plurality of layers of tube materials stacked via an air layer. According to the study of the present inventors, the effect of suppressing the generation of abrasion powder is limited when two layers of tube material are used. Therefore, three or more layers of tube material are provided. For example, when three layers of tube materials are laminated to form the exterior tube 40, three tubes made of polyethylene or polypropylene may be prepared and arranged in the radial direction so as to have a triple structure. The outer tube 40 may be in the shape of a bag, but in that case, the outer tube 40 may have a triple bag structure.

  FIG. 6 is a diagram illustrating a configuration of the film reel package 10 including the outer tube 40 configured as described above, and illustrates a configuration near the opening 23 of the core 21. The exterior tube 40 has a configuration in which three layers of tube materials 41 are stacked via an air layer. Except for the configuration of the outer tube 40, the film reel package 10 shown in FIG. 6 is the same as the film reel package 10 described with reference to FIG. The reason why the outer tube 40 is formed by laminating three or more layers of the tube material 41 via the air layer is to form a sliding surface in the outer tube 40. It is preferable that the coefficient of static friction between them is 0.5 or less. If the tube material 41 is too thin, the strength is simply insufficient, and if the tube material 41 is too thick, the effect of forming a slip surface is lost. Is preferably 10 μm or more and 50 μm or less. The difference between the inner diameter of the core 21 and the maximum outer diameter of the plug 32 regardless of whether or not the tube material 41 is stacked, in order to reduce the play when the film roll 20 is held by the holding member 30. It is preferable that the thickness be 0.2 mm or less. The rattling may cause the outer tube 40 to break.

  The film reel assembly package according to the embodiment of the present invention described above is configured by excluding the film reel package belonging to both rows of a plurality of film reel packages stacked in a stack on a pallet. For every combination of two film reel packages adjacent to each other on the outer periphery of the assembly to be formed, a cord-like member is passed through both the core in one film reel package and the core in the other film reel package. By arranging a tying band, and fixing the two film reel packages adjacent to each other with the tying band, the number of tying bands to be used is reduced, and the work time is shortened. Can be reduced.

  In the film reel assembly package of the present invention, a top plate that covers the plurality of film reel packages is further provided, and the stretch film covers the plurality of film reel packages including at least a part of the top plate. In addition, the film reel package can be more stably fixed, and the influence of a heavy falling object from above can be reduced and foreign matter can be prevented from being mixed.

  In the film reel assembly package of the present invention, in each of the plurality of film reel packages, an exterior tube that covers the film winding body is provided so as to include the film winding body therein, and the axial direction of the core in the exterior tube is provided. With the end portion serving as an exterior end portion, the exterior end portion is housed in the opening, and the supporting portion is inserted into the opening so that the exterior end portion is interposed between the core and the supporting portion, and the holding member is wound around the film. By being attached to the body, it is possible to more reliably prevent the film from being damaged and foreign matter from adhering to the film. In this case, by forming the outer tube with at least three layers of tube material laminated via an air layer, the generation of abrasion powder during long-distance transport can be further reduced.

  In the present invention, by using a polypropylene-made member as the cord-like member, for example, by using a binding band made of polypropylene, it becomes possible to fix the film reel package at low cost and with sufficient strength. Further, the present invention can be applied to a film reel assembly package for transporting a battery separator film formed with a large number of microporous, so that the amount of dust generated when brought into a clean room can be reduced. It is possible to maintain good quality of a secondary battery or the like manufactured by the film.

  Next, the present invention will be described in more detail based on Examples and Comparative Examples.

  The film reel package 10 described with reference to FIG. 1 is produced, and the produced film reel package 10 is placed on a wooden pallet 61 in four rows and three stages as in the case shown in FIG. A plate 63 was provided and covered with a stretch film 64 to produce a film reel assembly package. At this time, the manner of attaching the binding band was changed for each film reel assembly package as described below, and the film reel assembly packages of Examples 1 and 2 and Comparative Examples 1 to 4 were obtained. As the binding band 70, a band made of polypropylene (PP) was used. The core 21 used was made of paperboard having a length in the axial direction of 900 mm, an inner diameter of 152.6 mm, and a thickness of 10 mm. The holding member 30 is made of impact-resistant polystyrene (HI-PS), and has a square plate-like portion 31 having a length of one side of 290 mm, and is connected to the plate-like portion 31 of another holding member 30. The length of one side including the engaging portion used in the above is 310 mm, the length of the plug (support portion) 32 is 70 mm, the inner diameter is 120 mm, and the outer diameter of the plug 32 including the rib 33 is 152.4 mm. It was used. As the film 22, a film having a film thickness of 12 μm and a film width of 865 mm was used, and the film 22 having a maximum diameter of about 250 mm and a weight of about 15 kg was used. For the outer tube 40 of the film reel package 10, a high-density polyethylene (HDPE) having a thickness of 13 μm was used as a tube material. In Example 1 and Comparative Examples 1 to 4, the number of overlapping tubes is one, and in Example 2, the number of overlapping tubes is three as described above with reference to FIG.

  In Examples 1 and 2, the film reel package 10 was fixed by the six binding bands 70 using the binding method indicated by reference numeral 15A in FIG.

  In Comparative Example 1, the lowermost and uppermost film reel packages 10 are fixed to each other with the binding band 70 in the second and third rows from one end in the horizontal direction. The number used was reduced by two to four. That is, in the film reel assembly package 15A of FIG. 5, they were connected to each other by the binding band 70 as shown by BJ, and were connected to each other by the binding band 70 as shown by CK. Any of the film reel packages 10 in the second stage (the film reel packages 10 indicated by E, F, G, and H in FIG. 5) are not fixed by the binding band 70, and the two film reels vertically adjacent to each other are not fixed. This means that the fixing by the binding band 70 between the packages 10 is not performed.

  In Comparative Example 2, the film reel package 10 was fixed with only the stretch film 64 without using the binding band 70 at all.

  In Comparative Example 3, two film reel packages 10 vertically adjacent to each other in all rows are fixed to each other by a binding band 70, and two film reel packages horizontally adjacent to each other at the lowermost stage and the uppermost stage. 10 were fixed to each other with a binding band 70. That is, in the film reel assembly package 15A of FIG. 5, AB, BC, CD, AE, BF, CG, DH, EI, FJ, G It was fixed with the binding band 70 as shown as -K, HL, IJ, JK, and KL. As a result, the number of used binding bands 70 increased by eight compared to the case of the first embodiment, and became fourteen.

  In Comparative Example 4, the two film reel packages 10 adjacent to each other were not fixed to each other by the binding band 70. Instead, each film reel package 10 passed outside the film winding body 20 for each film reel package 10, In addition, one binding band 70 was wound around both holding members 30. The number of used binding bands 70 increased by 6 compared to Example 1, and was 12.

  For each of Examples 1 and 2 and Comparative Examples 1 to 4, the time actually required for the binding work of the binding band 70 by hand was measured with a stopwatch. Each of the film reel assembly packages of Examples 1 and 2 and Comparative Examples 1 to 4 was placed on a truck and transported in a section having a total distance of 1869.4 km. Using a truck equipped with a rear wheel air suspension, the transportation section is a normal paved road, which includes 1829.4 km of an expressway and 40 km of a general road. The loading of the film reel assembly package on the truck bed was performed on 14 pallets of 2 rows × 7 rows, and a lashing belt was appropriately used for fixing the film reel assembly package to the truck bed. After the transportation, the film reel package is unpacked. First, in each film reel package 10, it is determined whether or not a gap is formed between the surface of the plate-shaped portion 31 of the holding member 30 and the end of the core 21. Observation was made visually, and the case where there was a gap of 5 mm or more was counted as the occurrence of a gap. Thereafter, the holding member 30 was removed from the film reel package 10 and the state of generation of abrasion powder on the inner surface of the core 21 was observed. The generation state of the abrasion powder was visually observed using a 400 lumen LED light. Since the holding members 30 are attached to both ends of the core 21 in one film reel package 10, both places where a gap is likely to occur and places where abrasion powder is likely to occur are: There are two locations per core 21. Therefore, a value obtained by dividing the number of places where a gap is observed by twice the total number of cores 21 (that is, the total number of ends of the core 21) is defined as "gap generation rate", and similarly, abrasion powder is detected. The value obtained by dividing the number of the pits by twice the total number of the cores 21 is defined as “the contamination occurrence rate on the inner surface of the core”. Regarding each of the gap generation rate and the contamination generation rate on the inner surface of the core, if the generation rate is less than 5%, it is evaluated as “○”. If it is 5% or more and less than 15%, it is evaluated as “△”. If there was, it was evaluated as "x". Practically, if the rate of occurrence of dirt on the inner surface of the core is less than 5%, the work of cleaning dirt on the inner surface of the core before carrying the film roll 20 into the clean room can be greatly reduced, which is a serious problem for the clean room environment. It is conceivable that the possibility of dust generation having an effect can be reduced. Table 1 shows the results of Examples 1 and 2 and Comparative Examples 1 to 4, while illustrating how the binding band 70 (indicated by a thick line) was hung between the film reel packages 10.

  As shown in Table 1, in Examples 1 and 2 according to the present invention, the amount of dust generated in the film reel package 10 was reduced while the number of tying bands was reduced to six to reduce the tying work time to about 8 minutes. Was within the allowable range. In particular, in Example 2, the occurrence rate of contamination on the inner surface of the core was 0% by setting the number of overlapped tube materials to three. On the other hand, in Comparative Example 1 in which the number of binding bands was smaller than that according to the present invention and Comparative Example 2 in which no binding band was used, the working time could be further reduced. The amount of dust generated in the area increased. On the other hand, in Comparative Examples 3 and 4 in which the binding band was used in excess of that according to the present invention, the amount of dust generated in the film reel package 10 was within the allowable range, but the work time required for binding was 20%. Minutes or more, which was significantly increased as compared with Examples 1 and 2. According to the present invention, it has been found that the amount of dust generated in the film reel package after long-distance transportation can be kept within an allowable value, while shortening the time required for the binding operation by the binding band.

DESCRIPTION OF SYMBOLS 10 Film reel package 15A, 15B Film reel collective package 20 Film roll 21 Core 22 Film 30 Holding member 31 Plate part 32 Plug 33 Rib 34 Hole 40 Exterior tube 41 Tube material 61 Pallet 62 Pallet member 62 Top plate 64 Stretch film 70 unity band

Claims (6)

A film wound body including a cylindrical core and a film wound around the core, an outer tube that covers the film wound body so as to include the film wound body, and an axial direction of the core. Holding members arranged at both ends to hold the film roll, wherein the holding member is formed at an axial end of the core protruding from the plate-shaped portion and the plate-shaped portion. A support having a hole penetrating through the plate-like portion, the holding member being attached to the film winding body by inserting the support into the opening. A film reel package comprising a plurality of film reel packages, wherein the plurality of film reel packages are connected to each other via the plate-like portion and stacked on a transport pallet. hand,
In the plurality of film reel packages, the horizontal arrangement of the film reel packages is defined as a row, and the height arrangement is defined as a row. Loaded on
All of the two film reel packages adjacent to each other on the outer periphery of the assembly constituted by excluding the film reel packages belonging to the rows on both sides of the plurality of film reel packages stacked on the pallet For each combination, the hole at one end in one film reel package of the combination, the inside of the core of the one film reel package, and the other end of the one film reel package And the hole at the other end of the other film reel package of the combination, the inside of the core of the other film reel package and the other of the other film reel package. The one film reel package and the other film reel package are guided so as to pass through the hole at the one end. Comprises a string-shaped member for fixing to each other,
A film reel assembly package comprising a plurality of film reel packages, including at least a part of the transport pallet, covered with a stretch film.   The film according to claim 1, further comprising a top plate that covers an upper surface of the plurality of film reel packages, wherein the stretch film covers the plurality of film reel packages including at least a part of the top plate. Reel assembly package. In each of the plurality of film reel packages, an outer tube that covers the film roll so as to include the film roll therein is provided,
With the axial end of the exterior tube as an exterior end, the exterior end is housed in the opening, and the support is such that the exterior end is interposed between the core and the support portion. The film reel assembly package according to claim 1 or 2, wherein the holding member is attached to the film roll by inserting a portion into the opening.   4. The film reel assembly package according to claim 3, wherein the exterior tube is made of at least three layers of tube materials laminated via an air layer. 5.   The film reel assembly package according to any one of claims 1 to 4, wherein the string-shaped member is made of polypropylene. The film reel assembly package according to any one of claims 1 to 5, wherein the film is a battery separator film in which a large number of microporous holes are formed.