JP2012236663A - Film winding core - Google Patents

Film winding core Download PDF

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JP2012236663A
JP2012236663A JP2011105628A JP2011105628A JP2012236663A JP 2012236663 A JP2012236663 A JP 2012236663A JP 2011105628 A JP2011105628 A JP 2011105628A JP 2011105628 A JP2011105628 A JP 2011105628A JP 2012236663 A JP2012236663 A JP 2012236663A
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boss
tube
support
aluminum alloy
core
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Katsunobu Takase
克信 高瀬
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Sankyo Tateyama Inc
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Sankyo Tateyama Inc
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PROBLEM TO BE SOLVED: To provide a robust film winding core that is resistant to impacts acting thereon during storage or transit.SOLUTION: The film winding core includes: a tube 1 formed of an aluminum extruded shape; and a boss 2 formed of an aluminum forged product. The tube 1 is mounted with the boss 2 to each longitudinal end thereof. The boss 2 includes a support part 3 and a mounting part 4 mounted to the tube 1, wherein a boundary 8 located between the support part 3 and the mounting part 4 is rounded.

Description

本発明は、液晶フィルムなどを巻き取って保管するフィルム用巻芯に関するものである。   The present invention relates to a film core for winding and storing a liquid crystal film or the like.

図５（ａ）に示すものは、液晶フィルムなどを巻き取るための巻芯であり、この種の巻芯は、長尺な管２１と、その管２１の長手方向両端部に取り付けるボス２２とから構成してある。そして、両側の各ボス２２の支持部２３を支持台２５のボス受け２６にそれぞれ置くことにより、フィルム２７を巻き出し可能な状態で支持するものであった。   What is shown in FIG. 5A is a winding core for winding a liquid crystal film or the like. This type of winding core includes a long tube 21 and bosses 22 attached to both ends of the tube 21 in the longitudinal direction. It is composed of And the support part 23 of each boss | hub 22 of both sides is each supported in the state which can unwind the film 27 by putting in the boss | hub receptacle 26 of the support stand 25, respectively.

フィルム２７を巻いた状態でボス受け２６に乗せたとき、その荷重によりボス２２の支持部２３と取付部２４との境界部２８に相当の応力が発生するものであった（図５（ｂ）参照）。ボス２２を支持台２５のボス受け２６に置いた状態で巻芯を搬送したときには、揺れや衝撃によってボス２２が境界部２８で破損する問題点があった。
本発明は、上記課題を鑑みてなされたものであり、保管時あるいは搬送時に加わる衝撃に対して耐久性を備える堅牢なフィルム用巻芯を提供することにある。 When the film 27 is wound and placed on the boss receiver 26, a considerable stress is generated at the boundary portion 28 between the support portion 23 and the attachment portion 24 of the boss 22 due to the load (FIG. 5B). reference). When the core is transported in a state where the boss 22 is placed on the boss receiver 26 of the support base 25, there is a problem that the boss 22 is damaged at the boundary portion 28 due to shaking or impact.
This invention is made | formed in view of the said subject, and is providing the robust core for films provided with durability with respect to the impact added at the time of storage or conveyance.

本発明のうち請求項１記載の発明は、アルミ押出形材からなる管と、アルミ鍛造品からなるボスとを備え、管は、長手方向両端部にボスをそれぞれ取り付けるものであり、ボスは、支持部と管との取付部を有しており、支持部と取付部との境界部にはＲが設けてあることを特徴とする。   Invention of Claim 1 among this invention is equipped with the pipe | tube which consists of an aluminum extrusion shape material, and the boss | hub which consists of aluminum forgings, A pipe | tube attaches a boss | hub to a longitudinal direction both ends, respectively, It has the attachment part of a support part and a pipe | tube, R is provided in the boundary part of a support part and an attachment part, It is characterized by the above-mentioned.

本発明のうち請求項２記載の発明は、ボスの支持部の長手方向の寸法が４０〜６０であり、ボスの支持部の外径が１６０〜１８０であり、支持部と嵌合部との境界部が１０〜２０Ｒであることを特徴とする。   The invention according to claim 2 of the present invention is such that the longitudinal dimension of the support portion of the boss is 40 to 60, the outer diameter of the support portion of the boss is 160 to 180, and the support portion and the fitting portion are The boundary is 10-20R.

本発明のうち請求項３記載の発明は、管をアルミニウム合金６Ｎ０１で成形し、ボスをアルミニウム合金６０６１で成形していることを特徴とする。   The invention according to claim 3 of the present invention is characterized in that the tube is formed of aluminum alloy 6N01 and the boss is formed of aluminum alloy 6061.

本発明のうち請求項１記載の発明によれば、ボスがアルミ鍛造成形してあることで耐久性が向上するとともに、ボスの支持部と取付部との境界部にＲが設けてあることにより、応力が分散できるころから堅牢なフィルム用巻芯が提供できる。   According to the first aspect of the present invention, the durability of the boss is improved because the boss is formed by forging aluminum, and R is provided at the boundary between the support portion and the attachment portion of the boss. A robust core for a film can be provided from the time when the stress can be dispersed.

本発明のうち請求項２記載の発明によれば、ボスの支持部の長手方向の寸法が４０〜６０であることから、支持部と支持台とのかかりが浅くならず、ボスの支持部と取付部の境界部で発生する応力に対応したＲを設けることができる。さらに、支持部に耐久値を超える曲げモーメントも発生しない。ボスの支持部の外径が１６０〜１８０であることから、支持部のせん断耐力が確保されると共に、ボスに凹み発生することもない。支持部と嵌合部との境界部が１０〜２０Ｒであることにより、ボスの支持部と取付部の境界部に発生する応力を分散できることでフィルムの荷重によるボスの破損が防がれる。   According to invention of Claim 2 among this invention, since the dimension of the longitudinal direction of the support part of a boss | hub is 40-60, the coverage of a support part and a support stand does not become shallow, and the support part of a boss | hub R corresponding to the stress generated at the boundary portion of the attachment portion can be provided. Further, no bending moment exceeding the durability value is generated in the support portion. Since the outer diameter of the support portion of the boss is 160 to 180, the shear strength of the support portion is ensured, and no dent is generated in the boss. Since the boundary portion between the support portion and the fitting portion is 10 to 20R, the stress generated at the boundary portion between the support portion and the attachment portion of the boss can be dispersed, thereby preventing the boss from being damaged due to the load of the film.

本発明のうち請求項３記載の発明によれば、ボスをアルミニウム合金６０６１で成形し、管をアルミニウム合金６Ｎ０１で成形しているので、いずれのアルミニウム合金についても加工性や引張強度を有する素材であり、さらに、押出性やコスト面でもフィルム用巻芯として最適なものとなる。   According to the third aspect of the present invention, since the boss is formed of aluminum alloy 6061 and the tube is formed of aluminum alloy 6N01, any aluminum alloy is made of a material having workability and tensile strength. In addition, in terms of extrudability and cost, it is optimal as a film core.

（ａ）は、本実施によるフィルム用巻芯を示す縦断面図であり、（ｂ）は、要部を拡大した縦断面図である。(A) is a longitudinal cross-sectional view which shows the core for films by this implementation, (b) is the longitudinal cross-sectional view which expanded the principal part. （ａ）は、本実施によるフィルム用巻芯をボス受けに載置した状態を示す正面図であり、（ｂ）は、側面図である。(A) is a front view which shows the state which mounted the core for films by this implementation in the boss | hub receptacle, (b) is a side view. 本実施によるボスの製造手順を示す簡略化した正面図である。It is the simplified front view which shows the manufacturing procedure of the boss | hub by this implementation. 本実施によるフィルム用巻芯の製造手順を示す簡略化した斜視図である。It is the simplified perspective view which shows the manufacturing procedure of the core for films by this implementation. （ａ）は、従来のフィルム用巻芯を示す縦断面図であり、（ｂ）は、要部を拡大した縦断面図である。(A) is a longitudinal cross-sectional view which shows the conventional core for films, (b) is the longitudinal cross-sectional view which expanded the principal part.

以下に、図面に基づいて本実施によるフィルム用巻芯について説明する。本実施によるフィルム用巻芯（以下、巻芯と記す）は、管１と、管１の長手方向両端部に取り付けられるボス２とを備えており、図２（ａ）（ｂ）のように、支持台９のボス受け１０に置かれている。管１は、図１（ａ）のように、Ａ６Ｎ０１Ｓ−Ｔ５（アルミニウム合金６Ｎ０１を押出し成形したもの）であり、本実施のものでは、管の外径が２５０ｍｍに設定されている。ボス２は、図１（ｂ）のように、筒状をなす支持部３と、その支持部３よりも径が大きく且つ管１の長手方向両端部に嵌入して取り付ける取付部４とからなっており、Ａ６０６１ＦＤ−Ｔ６（アルミニウム合金６０６１を型鍛造で成形したもの）を使用している。また、支持部３は、長手方向の長さが５０ｍｍとしてあり、外径が１７５ｍｍ、内径が１５５ｍｍである。さらに、取付部４の径は、外径が２５０ｍｍであり、内径が２３８ｍｍであり、管１内に飲み込まれる長さは５０ｍｍとしてある。また、管１とボス２は、管１の外周側から直交方向に差し込まれるピン６を連通して抜け止めするものであり、そのピン６を嵌入するためのピン孔７ａ，７ｂが管１とボス２の取付部にそれぞれ設けてある。   Below, the core for films by this implementation is demonstrated based on drawing. The film core according to the present embodiment (hereinafter referred to as a core) includes a tube 1 and bosses 2 attached to both ends in the longitudinal direction of the tube 1 as shown in FIGS. 2 (a) and 2 (b). The boss receiver 10 of the support base 9 is placed. As shown in FIG. 1A, the tube 1 is A6N01S-T5 (extruded aluminum alloy 6N01). In this embodiment, the outer diameter of the tube is set to 250 mm. As shown in FIG. 1B, the boss 2 includes a cylindrical support portion 3 and a mounting portion 4 having a diameter larger than that of the support portion 3 and fitted to both ends of the tube 1 in the longitudinal direction. A6061FD-T6 (aluminum alloy 6061 formed by die forging) is used. The support portion 3 has a length in the longitudinal direction of 50 mm, an outer diameter of 175 mm, and an inner diameter of 155 mm. Furthermore, the diameter of the attachment portion 4 is 250 mm for the outer diameter, 238 mm for the inner diameter, and the length swallowed into the tube 1 is 50 mm. Further, the tube 1 and the boss 2 communicate with and prevent the pin 6 inserted in the orthogonal direction from the outer peripheral side of the tube 1 and pin holes 7 a and 7 b for inserting the pin 6 are connected to the tube 1. It is provided at each mounting portion of the boss 2.

図３（ａ）（ｂ）は、本実施によるボス２の製造方法を示すものである。
上型１２ａと下型１２ｂとを有し、上型１２ａが上下動する態様のプレス機を使用するものであり、上型１２ａには、ボスの取付部４に相当する形状をなす上側凹部１３ａが設けてあり、また、下型１２ｂには、ボス２の支持部３に相当する形状をなす下側凹部１３ｂが設けてある。そして、図３（ａ）のように、下型１２ｂにアルミニウム合金材２ａを置き、上型１２ａにより複数回プレスすることにより、アルミニウム合金材２ａを鍛錬していく。このとき、下型１２ｂではボス２の支持部３と取付部との境界部にＲを形成するが、そのＲについては２０Ｒとなるように設定されている。その後、図３（ｂ）のように、アルミニウム合金材２ａの内部を切削して筒状にするとともに、取付部４を切削で形成し、ボス２を製造する。 3A and 3B show a method for manufacturing the boss 2 according to the present embodiment.
A press machine having an upper mold 12a and a lower mold 12b and moving the upper mold 12a up and down is used. The upper mold 12a has an upper recess 13a having a shape corresponding to the mounting portion 4 of the boss. The lower mold 12b is provided with a lower concave portion 13b having a shape corresponding to the support portion 3 of the boss 2. Then, as shown in FIG. 3 (a), the aluminum alloy material 2a is placed on the lower mold 12b and pressed by the upper mold 12a a plurality of times, thereby forging the aluminum alloy material 2a. At this time, in the lower mold 12b, R is formed at the boundary portion between the support portion 3 and the attachment portion of the boss 2, and the R is set to be 20R. Thereafter, as shown in FIG. 3B, the inside of the aluminum alloy material 2a is cut into a cylindrical shape, and the mounting portion 4 is formed by cutting, whereby the boss 2 is manufactured.

管１の製造方法については、図４（ａ）のように、管材１ａの外周面に対し、半円弧状の凹部が設けてある管成形用上型１４ａおよび下型１４ｂにより管材１ａを回しながら切削していき、切削後に得られる管１の外径が所定の径となるように成形する。図４（ｂ）のように、管１外周面とボス２取付部４の嵌入部を管１を回転させながら切削する。そして、製造された管１の長手方向両端部の開口のそれぞれに上記工程で製造されたボス２を嵌入して取り付ける。図４（ｃ）にように、ボス２の取付部４を張出部が当接するまで管１の長手方向両端部の開口に嵌入させて差し込み、図４（ｄ）のように、管１とボス２の１２０°間隔の三箇所に、管１とボス２の取付部４とを連通するピン孔７ａ，７ｂを設ける。そして、図４（ｅ）のように、すべてのピン孔７ａ，７ｂにピン６を嵌入して連通し、管１とボス２とを離脱不能に固定し、図４（ｆ）のように、管１外周面を回転しながら仕上げ切削加工を施すことで本実施によるフィルム巻芯が完成する。   About the manufacturing method of the pipe | tube 1, as shown in Fig.4 (a), turning the pipe | tube material 1a with the upper mold | die 14a and the lower mold | type 14b for pipe | tube shaping | molding with which the semicircular arc shaped recessed part was provided with respect to the outer peripheral surface of the pipe | tube material 1a. It cuts and shape | molds so that the outer diameter of the pipe | tube 1 obtained after cutting may become a predetermined diameter. As shown in FIG. 4B, the outer peripheral surface of the tube 1 and the fitting portion of the boss 2 attachment portion 4 are cut while rotating the tube 1. And the boss | hub 2 manufactured at the said process is inserted and attached to each of the opening of the longitudinal direction both ends of the manufactured pipe | tube 1. As shown in FIG. As shown in FIG. 4 (c), the mounting portion 4 of the boss 2 is inserted into the openings at both ends in the longitudinal direction of the tube 1 until the overhanging portion comes into contact, and as shown in FIG. Pin holes 7a and 7b for communicating the tube 1 and the mounting portion 4 of the boss 2 are provided at three positions of the boss 2 at 120 ° intervals. Then, as shown in FIG. 4 (e), the pins 6 are inserted into and communicated with all the pin holes 7a and 7b, and the tube 1 and the boss 2 are fixed so as not to be detached. As shown in FIG. The film core according to the present embodiment is completed by performing finish cutting while rotating the outer peripheral surface of the tube 1.

上記のように形成した本実施によるフィルム用巻芯は、管１にフィルム１１を巻いた状態で支持台９のボス受け１０に置いたとき、ボス２の支持部３で管１とフィルム１１の荷重を受けることになる。このとき、ボス２の支持部３と取付部４との境界部８で応力が発生することになるが、ボス２の寸法の設定については、支持部３の長手方向の寸法が４０〜６０ｍｍに設定してある。この範囲内とするのは、４０ｍｍ未満としたときに、ボス２の支持部３と支持台９のボス受け１０とのかかりが浅くなって単位面積あたりの荷重が大きくなり、ボス２に変形のおそれがある。さらに、上記寸法で支持部３のかかりを確保しようとすれば、境界部８にＲが設けられなくなるので、ボス２の耐久性の確保が難しくなる。これとは反対に、ボス２の支持部３の長手方向の寸法を６０ｍｍよりも長くしたときには、支持部３で発生する曲げモーメントが大きくなり、支持部３が破損するが懸念があると共に、支持台９から外に突出した支持部３が保管時や搬送時の邪魔になってしまう。また、６０ｍｍよりも長く形成した支持部３は、ボス受け１０で受ける範囲を大きくして支持台９を大型化すれば、巻芯の収納性が悪くなってしまう。さらに、巻芯搬送中に加わる揺れや不意の衝撃により、巻芯が格納スペース内で不規則に動いたときには支持部３が他の搬送品等に引掛かる問題点も考えられる。
また、ボス２の支持部３の外径を１６０ｍｍ未満としたときには、上記のように長さが４０〜６０ｍｍとすれば、せん断応力が弱くなるため、支持部３の変形を防ぐためにはボス２の肉厚を厚くしなければならなくなる。さらに、外径を１８０ｍｍよりも大きくしたときには、支持部３に垂直荷重が加わればボス２が凹みやすくなるため、この変形を防ぐためには、同じようにボス２の肉厚を厚くする必要がある。このことからボス２の支持部３は、長さが４０〜６０ｍｍの範囲とし、外径を１６０〜１８０ｍｍの範囲とするものである。さらに、ボス２の支持部３と取付部４との境界部８に設けられるＲは、上記したボス２の支持部３の長さ寸法と外径寸法を考慮したとき、１０〜２０Ｒの範囲とするものであり、フィルム１１を巻いた状態の巻芯を支持台９のボス受け１０で支持したときに、支持部２と取付部３の境界部８に設けてあるＲにより応力が分散する。
なお、ボス２がフィルム１１の荷重や衝撃で破損しないものであるのはもちろん、鍛造性やコスト面も考慮する必要があり、このことから、ボス２の材質選定については、アルミニウム合金２０００系、６０００系、７０００系のうちのいずれかが望ましい。このうち、アルミニウム合金２０００系と７０００系は、耐食性が悪く、本実施によるフィルム用巻芯のように屋外使用が想定されるものでは、汚れを落とすために水洗浄が行われることから一定の耐食性を有する必要がある。さらに、本実施では、ボス２のアルミニウム合金材２ａとして径が２００ｍｍを超える押出し棒材を使用することから、強度の高いアルミニウム２０００系と７０００系では押出し性が悪く製造が難しい。また、アルミニウム合金２０００系と７０００系は、変形抵抗値が高いことから鍛造成形には適さず、このことからアルミニウム合金６０００系が選定される。アルミニウム合金６０００系のうち、アルミニウム合金６N０１やアルミニウム合金６０６３は、成形性は良いが強度不足になるため、Ａ６０６１ＦＤ−Ｔ６（アルミニウム合金６０６１）とするものである。 When the film core according to the present embodiment formed as described above is placed on the boss receiver 10 of the support base 9 with the film 11 wound around the tube 1, the support 1 of the boss 2 supports the tube 1 and the film 11. Will receive a load. At this time, stress is generated at the boundary portion 8 between the support portion 3 and the attachment portion 4 of the boss 2, but the dimension of the support portion 3 is set to 40 to 60 mm in the longitudinal direction with respect to the dimension setting of the boss 2. It is set. Within this range, when the length is less than 40 mm, the contact between the support portion 3 of the boss 2 and the boss receiver 10 of the support base 9 becomes shallow and the load per unit area increases, and the boss 2 is deformed. There is a fear. Furthermore, if it is going to ensure the covering of the support part 3 with the said dimension, since R will no longer be provided in the boundary part 8, ensuring of the durability of the boss | hub 2 becomes difficult. On the contrary, when the longitudinal dimension of the support part 3 of the boss 2 is longer than 60 mm, the bending moment generated in the support part 3 increases, and there is a concern that the support part 3 may be damaged, The support part 3 protruding outward from the base 9 becomes an obstacle during storage and transportation. Moreover, if the support part 3 formed longer than 60 mm enlarges the range received by the boss receiver 10 to increase the size of the support base 9, the retractability of the core becomes worse. Further, there may be a problem that the support unit 3 is caught by another transported item or the like when the core is irregularly moved in the storage space due to the shaking or the unexpected impact applied during the core conveyance.
Further, when the outer diameter of the support portion 3 of the boss 2 is less than 160 mm, if the length is 40 to 60 mm as described above, the shear stress becomes weak. You will have to increase the wall thickness. Furthermore, when the outer diameter is larger than 180 mm, the boss 2 is easily recessed when a vertical load is applied to the support portion 3. In order to prevent this deformation, it is necessary to increase the thickness of the boss 2 in the same manner. . Therefore, the support portion 3 of the boss 2 has a length in the range of 40 to 60 mm and an outer diameter in the range of 160 to 180 mm. Further, R provided at the boundary portion 8 between the support portion 3 of the boss 2 and the attachment portion 4 is in the range of 10 to 20R when the length dimension and the outer diameter size of the support portion 3 of the boss 2 described above are taken into consideration. Therefore, when the core in a state where the film 11 is wound is supported by the boss receiver 10 of the support base 9, the stress is dispersed by R provided at the boundary portion 8 between the support portion 2 and the attachment portion 3.
It should be noted that the boss 2 is not damaged by the load or impact of the film 11, and it is necessary to consider forgeability and cost. From this, for the material selection of the boss 2, the aluminum alloy 2000 series, Either 6000 series or 7000 series is desirable. Among these, the aluminum alloys 2000 and 7000 have poor corrosion resistance, and in the case of being expected to be used outdoors like the film core according to the present embodiment, water washing is performed to remove dirt, so that certain corrosion resistance is obtained. It is necessary to have. Furthermore, in this embodiment, since an extruded bar having a diameter exceeding 200 mm is used as the aluminum alloy material 2a of the boss 2, the high strength aluminum 2000 series and 7000 series have poor extrudability and are difficult to manufacture. Also, the aluminum alloys 2000 and 7000 are not suitable for forging because of their high deformation resistance, and the aluminum alloy 6000 is selected from this. Among the aluminum alloy 6000 series, the aluminum alloy 6N01 and the aluminum alloy 6063 are A6061FD-T6 (aluminum alloy 6061) because the formability is good but the strength is insufficient.

管１は、径が大きいため、変形抵抗値の大きな２０００系、７０００系では押出しが困難であることから、アルミニウム合金６０００系が選択され、その中で押出性、コスト、強度を鑑みたときにＡ６Ｎ０１Ｓ−Ｔ５を選定するものである。ボス２と同様にＡ６０６１ＦＤ−Ｔ６で成形したときには、押出し性が悪いためにコスト高になり、また、押出し性の良好なＡ６０６３Ｓ−Ｔ５としたときには、耐力値が想定される使用環境では満たされないことから管１としては適さない。   Since the pipe 1 has a large diameter, it is difficult to extrude in the 2000 series and 7000 series having a large deformation resistance value. Therefore, the aluminum alloy 6000 series is selected, and in view of extrudability, cost, and strength. A6N01S-T5 is selected. When molded with A6061FD-T6 as well as Boss 2, the cost is high due to poor extrudability, and when A6063S-T5 with good extrudability is used, the proof stress cannot be satisfied in the usage environment. Therefore, it is not suitable for tube 1.

ボス２の取付部４は、上記実施形態では管１の長手方向両端部に嵌入してピン６で固定するものが示されたが、取付部４を雄ネジ部、管の内周に雌ネジ部とし、互いをネジ式に螺合するものなど、管１から抜け出さないように取り付けできるものであればよい。   The attachment portion 4 of the boss 2 is shown in the above embodiment as being fitted to both ends in the longitudinal direction of the tube 1 and fixed with pins 6. However, the attachment portion 4 is a male screw portion, and an internal thread is provided on the inner periphery of the tube. Any member that can be attached so as not to come out of the tube 1 such as a screw-type screwed portion, etc. may be used.

１ 管
２ ボス
３ 支持部
４ 取付部
８ 境界部

1 pipe 2 boss 3 support part 4 attachment part 8 boundary part

Claims (3)

アルミ押出形材からなる管と、アルミ鍛造品からなるボスとを備え、管は、長手方向両端部にボスをそれぞれ取り付けるものであり、ボスは、支持部と管との取付部を有しており、支持部と取付部との境界部にはＲが設けてあることを特徴とするフィルム用巻芯。   A tube made of an aluminum extruded shape member and a boss made of an aluminum forged product are provided, and the tube has bosses attached to both ends in the longitudinal direction, and the boss has an attachment portion between the support portion and the tube. A film core, wherein R is provided at the boundary between the support portion and the attachment portion. ボスは、支持部の長手方向の寸法が４０〜６０であり、支持部の外径が１６０〜１８０であり、支持部と嵌合部の境界部が１０〜２０Ｒであることを特徴とする請求項１記載のフィルム用巻芯。   The boss has a longitudinal dimension of the support part of 40 to 60, an outer diameter of the support part of 160 to 180, and a boundary part of the support part and the fitting part of 10 to 20R. Item 2. The film core according to Item 1. 管をアルミニウム合金６Ｎ０１で成形し、ボスをアルミニウム合金６０６１で成形していることを特徴とする請求項１又は２記載のフィルム用巻芯。
The film core according to claim 1 or 2, wherein the tube is formed of an aluminum alloy 6N01 and the boss is formed of an aluminum alloy 6061.
JP2011105628A 2011-05-10 2011-05-10 Film winding core Withdrawn JP2012236663A (en)

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WO2015029558A1 (en) * 2013-08-28 2015-03-05 日本合成化学工業株式会社 Polyvinyl alcohol film roll and polarizing film using same
WO2015029557A1 (en) * 2013-08-28 2015-03-05 日本合成化学工業株式会社 Polyvinyl alcohol film roll and polarizing film using same
JP2015064557A (en) * 2013-08-28 2015-04-09 日本合成化学工業株式会社 Polyvinyl alcohol film roll, polarizing film using the same, and method for manufacturing polyvinyl alcohol film roll
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WO2015029558A1 (en) * 2013-08-28 2015-03-05 日本合成化学工業株式会社 Polyvinyl alcohol film roll and polarizing film using same
WO2015029557A1 (en) * 2013-08-28 2015-03-05 日本合成化学工業株式会社 Polyvinyl alcohol film roll and polarizing film using same
JP2015064557A (en) * 2013-08-28 2015-04-09 日本合成化学工業株式会社 Polyvinyl alcohol film roll, polarizing film using the same, and method for manufacturing polyvinyl alcohol film roll
JP2015063395A (en) * 2013-08-28 2015-04-09 日本合成化学工業株式会社 Polyvinyl alcohol film roll and polarizing film using same
CN105263838A (en) * 2013-08-28 2016-01-20 日本合成化学工业株式会社 Polyvinyl alcohol film roll and polarizing film using same
CN105283396A (en) * 2013-08-28 2016-01-27 日本合成化学工业株式会社 Polyvinyl alcohol film roll and polarizing film using same
KR20160048722A (en) * 2013-08-28 2016-05-04 닛폰고세이가가쿠고교 가부시키가이샤 Polyvinyl alcohol film roll and polarizing film using same
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TWI639710B (en) * 2013-08-28 2018-11-01 Mitsubishi Chemical Corporation Polyvinyl alcohol film roll and polarizing film using the film roll
KR102138925B1 (en) * 2013-08-28 2020-07-28 미쯔비시 케미컬 주식회사 Polyvinyl alcohol film roll and polarizing film using same
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