JP2013129452A - Fiber package packing body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packing body stably transporting fiber packages with coefficient of static friction of a surface reduced by application of an oil solution or the like, in a high-quality state without causing loosening of winding.SOLUTION: In a fiber package packing body, fiber packages having fibers wound around cylindrical bobbins are packed, the fibers having a total weight of 200-1,000 kg, a fineness of 1,000-100,000 dtex, and a coefficient of static friction between the fibers of 0.03-0.8. While the shafts of the cylindrical bobbins constituting the packages are set in a horizontal direction, the ends of the cylindrical bobbins are vertically supported. Thereby, the cylindrical bobbins are mounted on a pallet while the positions thereof are fixed.

Description

  The present invention comprises, for example, a fiber package in which the coefficient of static friction between fibers is low due to the application of an oil agent and the like and a predetermined pallet. The present invention relates to a package of a fiber package that can be stably conveyed in a high quality state.

  Conventionally, when a large amount of fibers wound around a cylindrical bobbin is packed at a time, there is a packing body in which the package is packed while being supported in a vertical direction (Patent Documents 1 to 6). However, the conventional packing body that supports the package in which the fiber is wound around the cylindrical bobbin in the vertical direction causes the package to collapse due to its own weight and deteriorates the quality as the package becomes larger. Often happens.

  Moreover, when packaging a package in which a sheet is wound around a cylindrical bobbin, a package that holds the package in a state of being floated horizontally is also disclosed (Patent Documents 7 and 8). However, using a pallet similar to the pallet used for packing a package in which a fiber having a low coefficient of static friction is wound around a cylindrical bobbin by applying an oil agent, etc. When the package is configured, the fibers are slippery, so that the package is crushed and the quality is often deteriorated, and the same form as the package of the sheet package is applied to the fiber package. It has not reached.

Japanese Patent Laid-Open No. 2003-155087 Utility Model Registration No. 3131636 Japanese Utility Model Publication No.59-186278 Japanese Utility Model Publication No. 60-157681 Japanese Utility Model Publication No. 61-22781 Japanese Utility Model Publication No. 3-23157 JP 2010-43400 A JP 2004-59070 A

  The present invention improves such problems of the prior art, for example, a fiber package in which the coefficient of static friction between fibers is low due to the application of an oil agent, etc., without causing collapse, and in a high quality state It is an object of the present invention to provide a packing body that can be stably transported.

  In order to achieve the above object, the package of the present invention has the following configuration. That is, the present invention is a fiber in which a fiber package in which fibers having a total weight of 200 to 1000 kg, a fineness of 1000 to 100000 dtex, and a coefficient of static friction between fibers of 0.03 to 0.8 is wound around a cylindrical bobbin is packed. In the package body of the package, the cylindrical bobbin constituting the package is supported on the end of the cylindrical bobbin from above and below in a state where its axis is in the horizontal direction, and the position is fixed and loaded on the pallet. It is the package characterized by the above.

  The package body of the fiber package of the present invention is more specifically a cylinder, for example, by supporting a fiber package having a low coefficient of static friction between fibers by applying an oil agent or the like by the specific method. By supporting the end of the bobbin in the vertical direction by the specific method, it can be stably conveyed in a high quality state without causing collapse.

It is a schematic side view which shows one embodiment of the package of this invention. It is a schematic perspective view which shows one embodiment of the package which comprises the package of this invention. It is a schematic side view which shows one embodiment of the method of winding up the fiber of the package which comprises the package of this invention to a cylindrical core bobbin. It is a schematic side view which shows one embodiment of the method of fixing the package which comprises the package of this invention to a pallet. It is the schematic which looked at the pallet which comprises the packing body of this invention from the downward direction. It is a schematic side view which shows one embodiment which piled up the package of this invention in multiple steps. It is a schematic side view which shows one embodiment which piled up the pallet which comprises the package of this invention in multiple steps. It is a figure for demonstrating the measuring method of the static friction coefficient of the fiber used for the package of this invention.

  The present invention relates to a fiber package in which a fiber package in which fibers having a total weight of 200 to 1000 kg, a fineness of 1000 to 100000 dtex, and a coefficient of static friction between fibers of 0.03 to 0.8 is wound around a cylindrical bobbin is packed. In the packing body, the cylindrical bobbin constituting the package is supported by the end of the cylindrical bobbin in a specific manner from above and below in a state where its axis is in the horizontal direction, so that the position is fixed to the pallet. It is a package characterized by being loaded. Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic side view showing an embodiment of the package of the present invention.

  In FIG. 1, specific fibers constituting the package 1 include polyacrylonitrile fiber, cellulose fiber, polyamide fiber, polyester fiber, polyvinyl alcohol fiber, polyvinyl chloride fiber, polyvinylidene chloride fiber, Polyethylene fiber, Polypropylene fiber, Polyurethane fiber, Polyalkylene paraoxybenzoate fiber, Polytetrafluoroethylene fiber, Poly blue vinylidene fiber, Polyurea fiber, Glass fiber, Metal fiber, Carbon fiber, Rock fiber, Or any of the fibers close to it may be used. The preferred fiber is a synthetic fiber such as polyester, polyamide, polyacrylonitrile, and particularly preferred is an acrylic fiber having a low friction by applying an oil mainly composed of an amino-modified silicone oil, and a carbon fiber. Used as a raw material. From this viewpoint, the total fineness of the filament needs to be 1000 to 100,000 dtex, and preferably 4000 to 80000 dtex.

  Moreover, the coefficient of static friction between fibers of the fiber used in the present invention is 0.03 to 0.8. The fiber constituting the package 1 is not particularly limited because there is a high effect even with a fiber having a relatively high static friction coefficient, but when the static friction coefficient is too large, fluff is generated by the friction when the fibers are rubbed together, Since the quality deteriorates, in the present invention, it is essential that the static friction coefficient is 0.8 or less. On the contrary, the package of the present invention exerts its effect more strongly in the package 1 in which the static friction coefficient of the surface becomes small due to the application of the oil agent and the fibers are easily slipped by being easily slipped. From this point of view, in order to carry out the present invention, it is necessary that the fibers constituting the package 1 have a coefficient of static friction between the fibers of 0.03 to 0.8, and a more preferable range of the coefficient of static friction is 0.1. ~ 0.4.

  In FIG. 1, the total weight of the fibers of the package 1 to be loaded is 200 to 1000 kg per pallet, and a more preferable range is 300 to 900 kg. By reducing the total weight of the fibers of the package 1 to be loaded to 1000 kg or less, by reducing the load on the package, vibration to the entire package can be suppressed, and the package can be transported stably. In addition, the lower limit of the total weight of the fibers of the package 1 is not particularly limited, but if the total weight of the fibers of the package 1 is less than 200 kg, the package cannot be efficiently transported and productivity is impaired. End up.

  Furthermore, the package which comprises the package of this invention is demonstrated using FIG. FIG. 2 is a schematic perspective view showing one embodiment of a package constituting the package of the present invention.

  The package constituting the package of the present invention is preferably formed by protecting the fiber 22 wound around the cylindrical core bobbin 21 with a protective member. For example, the packaging package of the present invention includes a cylindrical core bobbin 21 and the above-described fiber 22 wound around the cylindrical core bobbin 21, and the fiber 22 is preferably formed by a polyolefin foam 23 from the parallel direction of the cylindrical core bobbin 21 to the yarn end surface. The yarn surface is preferably covered with a polyethylene film 24 from the vertical direction.

  The distance between the end portion of the cylindrical core bobbin 21 and the end surface of the fiber 22 is preferably 2 to 13%, more preferably 5 to 10% of the longitudinal distance of the cylindrical core bobbin 21 of the fiber 22. The thickness of the polyolefin foam 23 attached to the end face is preferably set to 0.5 to 5%, more preferably 0.6 to 2.2% of the longitudinal distance of the cylindrical core bobbin 21 of the fiber 22. By making the distance between the end portion of the cylindrical core bobbin 21 and the end face of the fiber 22 in this way, it is possible to suppress the collapse of the fiber 22 of the package due to the vibration generated when the package is transported. Further, since the polyolefin foam 23 is present, even when the end face of the fiber 22 of the package comes into contact with a part of the pallet 2 when the package is loaded on the pallet, it is difficult to be damaged by the impact and the quality is deteriorated. Can be suppressed. Similarly, the polyethylene film 24 can be used to suppress deterioration of quality due to foreign matters such as dust adhering during transportation or storage of the package.

  A method of winding the fiber 22 of the package constituting the package of the present invention around the cylindrical core bobbin 21 will be described with reference to FIG. FIG. 3 is a schematic side view showing an embodiment of a method for winding the fibers of the package constituting the package of the present invention onto a cylindrical core bobbin.

  The package constituting the package of the present invention is formed by winding a running yarn 31 of a fiber around a cylindrical bobbin with a wind ratio of 2 to 10 around a rotating cylindrical core bobbin 21 via a guide roller 32. Preferably there is. More preferably, it is 3-6. Here, the wind ratio is the number of rotations of the cylindrical core bobbin 21 that is made while the traveling yarn 31 reciprocates once in the parallel direction of the core bobbin 21 when the traveling yarn 31 is wound up. When the wind ratio is less than 2, the wound up fibers 22 are not firmly fixed, and the rolls are likely to collapse. On the other hand, if the wind ratio is greater than 10, the end portion of the fiber 22 of the package rises, and the package may have a drum shape and the winding shape may easily collapse.

  The package of the present invention is provided with a pallet 2 that supports the end of a cylindrical bobbin of the package 1 from above and below as shown in FIG.

  A method of fixing the package constituting the present invention will be described with reference to FIG. FIG. 4 is a schematic side view showing an embodiment of a method for fixing a package constituting the package of the present invention to a pallet.

  The package loaded on the pallet is preferably supported by fixing both ends of the cylindrical bobbin 21 from above and below by a package support part 41 and a steel band 42 of the pallet as shown in FIG. As a support mode at this time, the contact angle between the package support portion 41 and the cylindrical core bobbin 21 is preferably set to 100 to 150 °, and the contact angle between the steel band 42 and the cylindrical core bobbin 21 is preferably set to 100 to 150 °. Good. By setting any one of these contact angles to 100 ° or more, it is possible to withstand horizontal vibration during transportation. Moreover, by setting it as 150 degrees or less, the designability and operativity of a pallet can be kept in a favorable range. The width of the steel band 42 may be shorter than the distance between the end portion of the cylindrical core bobbin 21 and the end surface of the fiber 22, but is preferably 5 to 80 mm. The steel band 42 shown in FIG. 4 is fixed on one side by an adjusting bolt 43 and a compression spring 44. When loading a package, the other side hook-shaped fixing bracket 45 is hooked on an adjustment fastener 46 and fixed. To do. The tip of the adjustment fastener 46 is preferably designed in a rounded shape so that when it is removed, even if the tip contacts the package, it is not easily damaged. The cylindrical bobbin is fixed preferably in such a manner that the package support 41 presses the tip of the bobbin from the outside in the parallel direction of the cylindrical bobbin. For this reason, even if the package vibrates, the package is not displaced in the parallel direction of the cylindrical bobbin, and the package is prevented from falling off the pallet or the package end face being rubbed against the package support portion 41 and being damaged. Can do.

  Here, urethane rubber 47 is attached to the contact portion between the package support portion 41 and the package bobbin of the steel band 42 in order to absorb an impact generated during transportation. This urethane rubber 47 is fixed with a steel band bolt 48. The width of the urethane rubber 47 fixed to the package support portion 41 and the steel band 42 is preferably set to 5 to 80 mm, and the thickness is preferably set to 3 to 10 mm. When the urethane rubber 47 has a width of 5 mm or more and a thickness of 3 mm or more, it is possible to sufficiently buffer an impact caused by vibration generated during transportation, and to suppress deterioration of the quality of the package. Moreover, the deterioration of workability | operativity by the width | variety of a fixing | fixed part can be prevented by making a width into 80 mm or less, and the fixability which has no problem is securable by making thickness into 10 mm or less.

  The pallet constituting the package of the present invention preferably has a plurality of grounding points, more preferably 4 to 12 points, and the area ratio of the grounding point to the effective area of the pallet is preferably 3 to 30%, more Preferably it is 5 to 30%.

  The grounding points of the pallet 2 of the packing body of the present invention will be described with reference to FIG. 5 showing one embodiment in the case where the number of grounding points is 10 and 2 points. FIG. 5 is a schematic view of the pallet constituting the package of the present invention as seen from below. In FIG. 5, the part shown in light gray is a grounding point.

  Regarding the grounding location of the pallet, when viewing the pallet from the vertical direction of the ground, the distance between the center of the pallet and the grounding point farthest from the center of the pallet is a, and the distance between the center of the pallet and the closest grounding point from the center of the pallet When b is b, the value of b / a is preferably 0.1 to 0.8.

  In FIG. 5, the effective area of the pallet is a quadrangular shape that is formed when connecting the four points farthest from the center of the pallet, that is, the outermost point of the pallet foot 51 when the pallet is viewed from the vertical direction of the ground. Indicates the area. Furthermore, the area of the contact point here refers to the total area of any part of the pallet that is in contact with the ground, not limited to the foot part 51 of the pallet, when the pallet is viewed from the vertical direction of the ground. By making this contact point area ratio 3-30%, frictional force acts on the package, vibration of the package is suppressed, the package rotates, the package collapses, the quality deteriorates, and the package Problems such as dropping off from the pallet can be prevented, and the package can be transported stably. Further, if the ratio of the area of the contact point is larger than 30%, the frictional force is too large, and the pallet cannot cope with the unevenness of the ground, and the distortion of the vibration cannot be absorbed by using the bending of the frame. In order to prevent this, the area ratio of the contact point is set to 30% or less, and the frictional force is suppressed to an appropriate range.

  In addition, about this location to ground, the value of b / a is preferably 0.1 to 0.8 as described above, more preferably 0.3 to 0.8, and still more preferably 0.55 to 0.8. is there. By setting the value of b / a to 0.1 to 0.8, friction acts evenly on the package, and it is possible to prevent the rotation of the package and the deterioration of the package quality by eliminating the spots in the vibration absorbing portion. it can. More preferably, including a configuration in which the forklift receiving part 52 having a hollow structure is grounded, the forklift receiving part 52 absorbs an impact on the packing body generated by vibration of the ground, and the packing body can be transported more stably. It becomes.

  The packaging body of the present invention is preferably configured such that a plurality of pallets loaded with a plurality of fiber packages can be stacked in two to six stages. A more preferable number of stages is 3 to 4 stages. An embodiment in which a plurality of the packing bodies of the present invention are stacked will be described with reference to FIG. FIG. 6 is a schematic side view showing an embodiment in which a plurality of packaging bodies according to the present invention are stacked.

  In order to enable such a configuration, the pallet of the packing body of the present invention is preferably designed so that the foot 51 and the arm 61 of another pallet can be fixed. As one embodiment of the design, the arm portion 61 is fixed to its own foot portion 51 in such a manner that the arm fixing bracket 63 is covered from the surroundings on the arm portion 61 and the inner pin 62 that are raised, and the foot portion 51 is configured by a hollow pipe. Thus, the foot 51 and the arm 61 can be fixed and stacked by making the design so that the tip of the standing arm 61 can be inserted into the foot 51 of another pallet. By setting it as such a mode, since the packing body can be stacked in a plurality of stages, the space of the packing body can be saved.

  Furthermore, it is preferable that the packaging body of this invention uses the pallet comprised so that 4 to 12 steps | paragraphs can be stacked | stacked in multiple stages so that only a pallet can be conveyed in a compact state after conveying a fiber package. A more preferable number of stages is 6 to 10 stages. An embodiment in which a plurality of pallets constituting the package of the present invention are stacked will be described with reference to FIG. FIG. 7 is a schematic side view showing an embodiment in which a plurality of pallets constituting the packing body of the present invention are stacked.

  In order to enable such a configuration, the pallet used in the packaging body of the present invention is preferably designed so that the vertical height can be lowered when the package is not held. As one embodiment of the design, the arm fixing bracket 63 is removed, the arm portion 61 is folded by rotating in the pallet longitudinal plane direction, and the inner pin 62 is inserted into the foot portion 51 of the pallet, thereby saving space. It is possible to transport the pallet in an organized manner. With this configuration, since the pallet is reused, a plurality of pallets can be stacked when only the pallet is transported, so that the space of the pallet can be saved.

  In this manner, if the pallet can be reused, various processes necessary for the disposal of the pallet can be omitted, thereby reducing the burden on the environment and economy. From this point of view, the pallet of the packaging body of the present invention needs to be able to withstand the weight of the package to be loaded and the weight of the stacked packaging body repeatedly, and it is preferable that the material is substantially made of steel. Pallet materials include wood, synthetic resin, and paper, and are not limited, but steel is less susceptible to deterioration due to the transport environment than wood, and pests like wood pallets are not. It is transported in the state of being present inside the pallet and does not cause serious environmental damage. Compared with a synthetic resin material, the repair at the time of breakage is comparatively simple and easy to recycle, so that it is advantageous from the viewpoint of reuse, and the cost for disposal is small economically. Furthermore, compared to a pallet made of paper, it is overwhelmingly superior in strength and load resistance, and can be stacked with multiple packages or stacked with multiple packages, thus saving space in the package. . It also has excellent reusability, and the incineration process necessary for the disposal of paper pallets does not occur, reducing the burden on the environment and economy. Furthermore, steel pallets are superior to other materials in terms of strength and load resistance, and are suitable for transporting a large number of packages at once.

  Hereinafter, the present invention will be described in more detail by way of examples and comparative examples based on the above embodiment, but the present invention is not limited to these examples. Moreover, about the evaluation of the static friction coefficient in each Example and a comparative example, it implemented by the following method.

(Static friction coefficient)
FIG. 8 is a view for explaining a method for measuring the coefficient of static friction of the fiber used in the package of the present invention. First, in an environment where the temperature is 23 ± 5 ° C. and the humidity is 60 ± 20%, the package is fixed horizontally so as not to rotate as shown in FIG. It hung in the state. Then, a weight 81 was hung on one side, and tension was applied by pulling the other side 82 downward, and the tension acting on the side 82 when the fibers on the package started to move was read. The above operation was performed three times, and the static friction coefficient μ was calculated by substituting the minimum value at this time as the tension T into the following equation.

(Package stability evaluation)
The package stability is evaluated by stacking the packages shown in FIG. 1 in three stages as shown in FIG. 6, and by first searching for the resonance point, at the resonance frequency, the excitation speed is 0.50 G. The condition of the pallet and package when the vibration was applied for 15 minutes was confirmed and carried out.

Example 1
As shown in FIG. 1, a package in which a polyacrylonitrile fiber having a total fiber weight of 700 kg, a static friction coefficient of 0.10, and a total fineness of 40000 dtex is wound around a cylindrical bobbin has 10 installation points and a grounding point area ratio of 3. A packing body fixed to a pallet having 7% and b / a (a = 1225 mm, b = 490 mm) representing an installation location of 0.40 was designed. When the package stability evaluation was carried out using this package, the package did not fall off from the pallet, and there was no fluff on the end face and side surface of the fiber of the package, and the quality was good. Also, there was no detachment of the steel band of the pallet, loosening of the steel band bolts, or rotation of the bobbin of the package.

(Example 2)
As shown in FIG. 1, a package in which a polyacrylonitrile fiber having a total fiber weight of 900 kg, a static friction coefficient of 0.10, and a total fineness of 40000 dtex is wound around a cylindrical bobbin has 10 installation points and a contact point area ratio of 3. A packing body fixed to a pallet having 7% and b / a (a = 1225 mm, b = 490 mm) representing an installation location of 0.40 was designed. When the package stability evaluation was carried out using this package, the package did not fall off from the pallet, and there was no fluff on the end face and side surface of the fiber of the package, and the quality was good. Also, there was no detachment of the steel band of the pallet, loosening of the steel band bolts, or rotation of the bobbin of the package.

(Example 3)
As shown in FIG. 1, a package in which a polyacrylonitrile fiber having a total fiber weight of 300 kg, a static friction coefficient of 0.10, and a total fineness of 40000 dtex is wound around a cylindrical bobbin has 10 installation points and a contact point area ratio of 3. A packing body fixed to a pallet having 7% and b / a (a = 1225 mm, b = 490 mm) representing an installation location of 0.40 was designed. When the package stability evaluation was carried out using this package, the package did not fall off from the pallet, and there was no fluff on the end face and side surface of the fiber of the package, and the quality was good. Also, there was no detachment of the steel band of the pallet, loosening of the steel band bolts, or rotation of the bobbin of the package.

(Comparative Example 1)
As shown in FIG. 1, a package in which a polyacrylonitrile fiber having a total fiber weight of 1500 kg, a static friction coefficient of 0.10, and a total fineness of 40000 dtex is wound around a cylindrical bobbin has 10 installation points and a contact point area ratio of 3. A packing body fixed to a pallet having 7% and b / a (a = 1225 mm, b = 490 mm) representing an installation location of 0.40 was designed. Using this package, the package stability evaluation was performed. As a result, the package vibrated greatly, the steel band and steel band bolts of the pallet were removed, the package was dropped, and fluff was found on the side and end surfaces of the package. Occurred.

Example 4
As shown in FIG. 1, a package in which a polyacrylonitrile fiber having a total fiber weight of 700 kg, a static friction coefficient of 0.40, and a total fineness of 40000 dtex is wound around a cylindrical bobbin has 10 installation points and a grounding point area ratio of 3. A packing body fixed to a pallet having 7% and b / a (a = 1225 mm, b = 490 mm) representing an installation location of 0.40 was designed. When the package stability evaluation was carried out using this package, the package did not fall off from the pallet, and there was no fluff on the end face and side surface of the fiber of the package, and the quality was good. Also, there was no detachment of the steel band of the pallet, loosening of the steel band bolts, or rotation of the bobbin of the package.

(Comparative Example 2)
As shown in FIG. 1, a package in which a polyacrylonitrile fiber having a total fiber weight of 700 kg, a static friction coefficient of 0.02, and a total fineness of 40000 dtex is wound around a cylindrical bobbin has 10 installation points and a grounding point area ratio of 3. A packing body fixed to a pallet having 7% and b / a (a = 1225 mm, b = 490 mm) representing an installation location of 0.40 was designed. Using this package, the package stability evaluation was performed. As a result, the package did not fall off the pallet, and the steel band of the pallet was not detached, the steel band bolts were not loosened, and the package bobbin was not rotated. It was. However, the yarn on the side surface of the package fiber slipped to the end surface, and as a result, fluff was generated on the side surface and end surface of the package.

(Example 5)
As shown in FIG. 1, a package in which a polyacrylonitrile fiber having a total fiber weight of 700 kg, a static friction coefficient of 0.10, and a total fineness of 40000 dtex is wound around a cylindrical bobbin has three installation points and a grounding point area ratio of 3. A packaging body fixed to a pallet with 0% and b / a (a = 1225 mm, b = 368 mm) representing an installation location of 0.30 was designed. When the package stability evaluation was carried out using this package, the package did not fall off from the pallet, and there was no fluff on the end face and side surface of the fiber of the package, and the quality was good. Also, the steel band of the pallet did not come off and the bobbin of the package did not rotate. However, because the frictional force did not work sufficiently on the package and could not absorb the vibration, the steel band bolts were loosened.

(Example 6)
As shown in FIG. 1, a package in which a polyacrylonitrile fiber having a total fiber weight of 700 kg, a static friction coefficient of 0.40, and a total fineness of 40000 dtex is wound around a cylindrical bobbin has 12 installation points and a grounding point area ratio of 28. A packing body fixed to a pallet having 5% and b / a (a = 1225 mm, b = 490 mm) representing an installation location of 0.40 was designed. When the package stability evaluation was carried out using this package, the package did not fall off from the pallet, and there was no fluff on the end face and side surface of the fiber of the package, and the quality was good. Also, there was no detachment of the steel band of the pallet, loosening of the steel band bolts, or rotation of the bobbin of the package.

(Example 7)
As shown in FIG. 1, a package in which a polyacrylonitrile fiber having a total fiber weight of 700 kg, a static friction coefficient of 0.10, and a total fineness of 40000 dtex is wound around a cylindrical bobbin has one installation point and a grounding point area ratio of 8. A packaging body fixed to a pallet with 9% and b / a representing an installation location of 0.80 (a = 1225 mm, b = 980 mm) was designed. Using this package, when the package stability evaluation was performed, there was no dropout of the package from the pallet, there were 3 fluffs on the end face of the fiber of the package, and only 2 fluffs on the side, The quality was good and the steel band of the pallet did not come off. However, because the frictional force did not work sufficiently on the package and could not absorb the vibration, the package rotated and the steel band bolts were loosened.

(Example 8)
As shown in FIG. 1, a package in which a polyacrylonitrile fiber having a total fiber weight of 700 kg, a static friction coefficient of 0.10, and a total fineness of 40000 dtex is wound around a cylindrical bobbin has 12 installation points and a contact point area ratio of 30. A packaging body fixed to a pallet having 0% and b / a (a = 1225 mm, b = 490 mm) representing an installation location of 0.40 was designed. When the package stability evaluation was carried out using this package, the package did not fall off from the pallet, and there was no fluff on the end face and side surface of the fiber of the package, and the quality was good. Also, there was no detachment of the steel band of the pallet, loosening of the steel band bolts, or rotation of the bobbin of the package.

Example 9
As shown in FIG. 1, a package in which a polyacrylonitrile fiber having a total fiber weight of 700 kg, a static friction coefficient of 0.10, and a total fineness of 40000 dtex is wound around a cylindrical bobbin has four installation points and a contact point area ratio of 2. A packing body fixed to a pallet having 0% and b / a representing an installation location of 0.80 (a = 1225 mm, b = 980 mm) was designed. Using this package, when the package stability evaluation was performed, there was no dropout of the package from the pallet, there were two fluffs on the end face of the fiber of the package, and only one fluff on the side, The quality was good and the steel band of the pallet did not come off. However, because the frictional force did not work sufficiently on the package and could not absorb the vibration, the package rotated and the steel band bolts were loosened.

(Example 10)
As shown in FIG. 1, a package in which a polyacrylonitrile fiber having a total fiber weight of 700 kg, a static friction coefficient of 0.10, and a total fineness of 40000 dtex is wound around a cylindrical bobbin has 10 installation points and a grounding point area ratio of 3. A packing body fixed to a pallet having 7% and b / a representing an installation location of 0.10 (a = 1225 mm, b = 123 mm) was designed. When the package stability evaluation was carried out using this package, the package did not fall off from the pallet, and there was no fluff on the end face and side surface of the fiber of the package, and the quality was good. Also, the steel band of the pallet did not come off and the bobbin of the package did not rotate. However, because the frictional force did not work sufficiently on the package and could not absorb the vibration, the steel band bolts were loosened.

(Example 11)
As shown in FIG. 1, a package in which a polyacrylonitrile fiber having a total fiber weight of 700 kg, a static friction coefficient of 0.10, and a total fineness of 40000 dtex is wound around a cylindrical bobbin has 10 installation points and a contact point area ratio of 30%. The packing body fixed to the pallet whose b / a representing the installation location is 0.05 (a = 1225 mm, b = 61 mm) was designed. Using this package, the above package stability evaluation was conducted. As a result, the package did not fall off from the pallet, there were 2 fluffs on the fiber end face of the package, no fluff on the side, and good quality. And the steel band of the pallet did not come off. However, because the frictional force did not work sufficiently on the package and could not absorb the vibration, the package rotated and the steel band bolts were loosened.

(Comparative Example 3)
As shown in FIG. 1, a package in which a polyacrylonitrile fiber having a total fiber weight of 700 kg, a static friction coefficient of 0.02, and a total fineness of 40000 dtex is wound around a cylindrical bobbin has 10 installation points and a grounding point area ratio of 2. A packing body fixed to a pallet having 0% and b / a representing an installation location of 0.20 (a = 1225 mm, b = 245 mm) was designed. Using this package, the package stability evaluation was performed. As a result, the package vibrated greatly, the steel band and steel band bolts of the pallet were removed, the package was dropped, and fluff was found on the side and end surfaces of the package. Occurred.

DESCRIPTION OF SYMBOLS 1 Package 2 Pallet 21 Cylindrical core bobbin 22 Fiber 23 Polyolefin foam 24 Polyethylene film 31 Running thread 32 Guide roller 41 Package support part 42 Steel band 43 Adjustment bolt 44 Compression spring 45 Fixing metal fitting 46 Adjustment fastener 47 Urethane rubber 48 Steel band bolt 51 Pallet foot 52 Forklift receiving part 61 Arm part 62 Inner pin 63 Arm fixing bracket 81 Weight 82 Another side of 81 (weight)

Claims (6)

In a package of a fiber package in which a fiber package in which fibers having a total weight of 200 to 1000 kg, a fineness of 1000 to 100000 dtex, and a coefficient of static friction between fibers of 0.03 to 0.8 is wound around a cylindrical bobbin is packed, The cylindrical bobbin constituting the package is supported on the end of the cylindrical bobbin from above and below in a state where its axis is in the horizontal direction, and the position is fixed and loaded on the pallet. Packaging. The plurality of fiber packages are stacked on a pallet, and the pallet on which the plurality of fiber packages are stacked is configured to be stacked in a vertical direction by fixing a foot part and an arm part of the pallet. 1. The package according to 1. There are a plurality of contact points of the pallet, the contact point area ratio is 3 to 30% with respect to the effective area of the pallet defined in the specification, and the center of the pallet is viewed from the vertical direction of the ground. The value of b / a is 0.1-0.8, where a is the distance of the grounding point farthest from the center of the pallet and b is the distance of the grounding point closest to the center of the pallet from the center of the pallet. The package according to claim 1 or 2. The package according to claim 3, wherein the number of grounding points of the pallet is 4 to 12, and the value of b / a is 0.3 to 0.8. The package according to any one of claims 1 to 4, wherein the pallet is configured such that the pallet can be stacked in 4 to 12 stages in the vertical direction by folding the arm part. The package according to any one of claims 1 to 5, wherein the package includes a configuration in which a fiber thread is wound around a cylindrical bobbin at a wind ratio of 2 to 10.