JPH03256964A - Thin web conveyor roll - Google Patents
Thin web conveyor rollInfo
- Publication number
- JPH03256964A JPH03256964A JP2049607A JP4960790A JPH03256964A JP H03256964 A JPH03256964 A JP H03256964A JP 2049607 A JP2049607 A JP 2049607A JP 4960790 A JP4960790 A JP 4960790A JP H03256964 A JPH03256964 A JP H03256964A
- Authority
- JP
- Japan
- Prior art keywords
- web
- thin web
- roll
- magnetic recording
- recording medium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005291 magnetic effect Effects 0.000 claims abstract description 82
- 230000002093 peripheral effect Effects 0.000 claims abstract 2
- 239000000463 material Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 9
- 239000002184 metal Substances 0.000 abstract description 9
- 230000005294 ferromagnetic effect Effects 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 50
- 210000005069 ears Anatomy 0.000 description 9
- 239000010408 film Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 238000001771 vacuum deposition Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Landscapes
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Paper Feeding For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野］
本発明は、連続的に走行する可撓性帯状支持体（以下、
ウェブという）を搬送案内する搬送ロールに関し、特に
前記ウェブ上に写真感光層、磁性層、表面保護層等を形
成して写真窓光材料、磁気記録媒体等を製造する製造装
置において好適な薄手ウェブ搬送ロールに関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a continuously running flexible strip support (hereinafter referred to as
A thin web that is particularly suitable for use in manufacturing equipment for manufacturing photographic window optical materials, magnetic recording media, etc. by forming a photographic photosensitive layer, a magnetic layer, a surface protective layer, etc. on the web. Regarding conveyance rolls.
従来、連続的に走行するウェブ上に写真感光層、磁性層
、表面保ｇＩＮ等を形成して写真窓光材料、磁気記録媒
体等を製造する製造工程は、例えばウェブ上に磁性層を
塗布する塗布工程、前記磁性層を塗布されたウェブを乾
燥する乾燥工程、テープ原反を所定幅に切断する裁断工
程等の各種の工程から成っている。そして、この様に各
工程内及び各種の工程間を搬送されるウェブは、その走
行方向を変えたり、搬送中のウェブのハタツキを抑えた
りする為に、円筒状に形成され、その両端を軸受等によ
って回転自在に軸支されて搬送経路に適宜配設された複
数の搬送ロールによって搬送支持されている。Conventionally, the manufacturing process for manufacturing photographic window optical materials, magnetic recording media, etc. by forming a photographic photosensitive layer, magnetic layer, surface retention gIN, etc. on a continuously running web involves, for example, coating a magnetic layer on the web. It consists of various steps such as a coating step, a drying step of drying the web coated with the magnetic layer, and a cutting step of cutting the original tape into a predetermined width. The web transported within each process and between various processes is formed into a cylindrical shape in order to change the running direction and suppress the fluttering of the web during transport, and both ends of the web are mounted on bearings. etc., and is conveyed and supported by a plurality of conveyance rolls suitably arranged on the conveyance path.
例えば、磁気記録媒体の場合、その磁性層に傷が生しる
と、記録時に情報のドロップアウトやノイズが発生する
ので、前記搬送ロールは搬送中に磁性層を傷付けないよ
うに磁気記録媒体を良好に搬送する必要がある。そこで
、前記搬送ロールは搬送中に磁性層を傷付けないように
前記ウェブの幅より長い長尺ロールであり、その表面は
ウェブ表面及び磁性層の表面を損傷しないように極めて
平滑に仕上げられている。For example, in the case of a magnetic recording medium, if the magnetic layer is scratched, information dropouts or noise will occur during recording, so the conveyance rolls are used to carefully move the magnetic recording medium so as not to damage the magnetic layer during conveyance. It must be transported well. Therefore, the conveyance roll is a long roll that is longer than the width of the web so as not to damage the magnetic layer during conveyance, and its surface is finished extremely smooth so as not to damage the web surface and the surface of the magnetic layer. .
ところで、この様な搬送ロールを使用することによって
、前記ウェブ上の写真感光層、磁性層等の各形成層の表
面に生しる傷の原因とじては、前記ウェブのウェブ幅方
向の変位がある。即ち、搬送中に前記ウェブが前記搬送
ロールの回転方向に対して垂直なウェブ幅方向に変位す
ると、その表面に形成された写真感光層、磁性層等の各
形成層が前記搬送ロール表面と摺接することになり、該
形成層に傷が生じる。したがって、少なくとも前記ウェ
ブのウェブ幅方向の変位は防止しなければならない。By the way, by using such a conveyance roll, the cause of scratches on the surface of each forming layer such as the photographic photosensitive layer and the magnetic layer on the web is the displacement of the web in the web width direction. be. That is, when the web is displaced in the web width direction perpendicular to the rotational direction of the transport roll during transport, the layers formed on the surface of the web, such as the photosensitive layer and the magnetic layer, slide against the transport roll surface. This causes damage to the forming layer. Therefore, at least displacement of the web in the web width direction must be prevented.
そこで、このような問題を解決する方法として、特開平
１−２５１４３０号公報には、長手方向に連続的に延び
た段差を幅方向の両端近傍に形成したフィルムを得、該
フィルムを長手方向に送りつつ該フィルムの表面に磁性
層を形成して磁気記録媒体を製造する方法が開示されて
おり、この方法によれば、段差の作用によりフィルムの
湾曲、蛇行、のび等による幅方向の変位を防止すること
ができる。Therefore, as a method to solve such problems, Japanese Patent Application Laid-Open No. 1-251430 discloses a film in which steps extending continuously in the longitudinal direction are formed near both ends in the width direction, and the film is A method of manufacturing a magnetic recording medium by forming a magnetic layer on the surface of the film while feeding is disclosed, and according to this method, displacement in the width direction due to curvature, meandering, stretching, etc. of the film is prevented by the action of the step. It can be prevented.
しかしながら、近年、磁気記録媒体等には、上記の如き
ウェブの厚みを１０μｍ以下とした所謂薄手ウェブが使
用されている。この様な薄手ウェブを搬送する際には、
搬送時のウェブに作用する張力も前記薄手ウェブの厚み
に比例して低くしなければならない。また、最近の磁気
記録媒体の記憶容量を高める高密度磁気記録化の動向に
あっては、磁性層として強磁性金属薄膜から成る磁性層
を有する磁気記録媒体は、酸化鉄粉や金属粉末を塗布し
た塗布型磁性層を有する磁気記録媒体の搬送時に比べて
、１／３程度の張力しか与えられないことが判明した。However, in recent years, so-called thin webs having a web thickness of 10 μm or less as described above have been used in magnetic recording media and the like. When transporting such a thin web,
The tension acting on the web during transport must also be reduced in proportion to the thickness of the thin web. In addition, with the recent trend toward high-density magnetic recording that increases the storage capacity of magnetic recording media, magnetic recording media that have a magnetic layer made of a thin ferromagnetic metal film are coated with iron oxide powder or metal powder. It has been found that only about 1/3 of the tension can be applied when transporting a magnetic recording medium having a coated magnetic layer.
更に、前記薄手ウェブ上に形成される前記各形成層の表
面平滑性を向上させるため、前記薄手ウェブもその表面
が非常に平滑なものを使用されている。Further, in order to improve the surface smoothness of each forming layer formed on the thin web, the thin web is also used with a very smooth surface.
そして、前記搬送ロールによる前記各形成層の傷発生の
原因として、ウェブのウェブ幅方向の変位の他、前記搬
送ロールの回転率の低下がある。In addition to the displacement of the web in the width direction of the web, the causes of scratches on the formation layers caused by the transport roll include a decrease in the rotation rate of the transport roll.
即ち、前記ウェブの搬送時に、前記搬送ロールと前記ウ
ェブとがスリップして、前記搬送ロールの回転率すなわ
ち前記ウェブの走行速度に対する前記搬送ロールの周速
度の比が低下すると、前記搬送ロールによって前記ウェ
ブの表面が擦られるので、ウェブ表面や形成層に傷が生
してしまう。That is, when the conveyance roll and the web slip during conveyance of the web, and the rotation rate of the conveyance roll, that is, the ratio of the circumferential speed of the conveyance roll to the running speed of the web decreases, the conveyance roll causes the Since the surface of the web is rubbed, scratches occur on the web surface and forming layer.
従って、互いに表面平滑性が良く、十分な張力を作用さ
れない前記薄手ウェブ表面と前記搬送ロールとの間の駆
動伝達力は小さくなるので、前記搬送ロールと前記薄手
ウェブとがスリップし易く、前記搬送ロールの回転率が
低下してウェブ表面や形成層に損傷を与えるという問題
がある。Therefore, the drive transmission force between the thin web surface and the transport roll, which have good surface smoothness and are not subjected to sufficient tension, is small, so the transport roll and the thin web tend to slip, and the transport There is a problem in that the rotation rate of the roll decreases, causing damage to the web surface and forming layer.
また、前記特開平１−２５１４３０号公報に記載の方法
では、前記薄手ウェブのウェブ幅方向の変位は防止でき
るが、該薄手ウェブが搬送ロールに寄与する摩擦力は低
いので、前記搬送ロールと前記薄手ウェブとがスリップ
して前記搬送ロールの回転率が低下し、ウェブや磁性層
に損傷を与える。更に、例えば強磁性金属薄膜から成る
磁性層を有する磁気記録媒体を搬送した際には、ウェブ
幅方向の両端近傍に形成された段差が磁気記録媒体の幅
方向中央部に応力を発生させるので、非常に薄い前記強
磁性金属７Ｒ膜がひび割れを起こし易いという問題があ
る。Further, in the method described in JP-A-1-251430, displacement of the thin web in the web width direction can be prevented, but since the frictional force that the thin web contributes to the conveyance roll is low, The thin web slips, reducing the rotation rate of the conveying roll and damaging the web and the magnetic layer. Furthermore, when a magnetic recording medium having a magnetic layer made of, for example, a ferromagnetic metal thin film is transported, the steps formed near both ends of the web in the width direction generate stress in the center of the magnetic recording medium in the width direction. There is a problem in that the very thin ferromagnetic metal 7R film is prone to cracking.
そこで、本発明の目的は上記問題を解決することにあり
、薄手ウェブ上に形成される形成層に損傷を生しること
なく、良好に該薄手ウェブを搬送することができる薄手
ウェブ搬送ロールを提供することにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above problems, and to provide a thin web conveying roll that can satisfactorily convey a thin web without damaging the forming layer formed on the thin web. It is about providing.
（課題を解決するための手段］
本発明に係る上記目的は、連続的に走行する厚さが１０
μｍ以下の薄手ウェブをウェブ幅方向に亘ってその円筒
形状外周面で支持しながら搬送案内する薄手ウェブ搬送
ロールであって、前記ウェブの幅方向両端縁近傍の不使
用領域に対向、接触する位置に、前記円筒形状外周面よ
りも強い駆動伝達力を有する突起が周方向に沿って設け
られていることを特徴とする薄手ウェブ搬送ロールによ
って達成される。(Means for Solving the Problems) The above object of the present invention is to achieve a continuous running thickness of 10
A thin web conveyance roll that conveys and guides a thin web of μm or less in width while supporting it on its cylindrical outer circumferential surface, and is located at a position facing and in contact with an unused area near both ends of the web in the width direction. This is achieved by a thin web conveyance roll characterized in that a protrusion having a stronger drive transmission force than the cylindrical outer circumferential surface is provided along the circumferential direction.
以下、添付図面を参照して本発明の一実施態様を説明す
る。Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings.
第１図は本発明の一実施態様である薄手ウェブ搬送ロー
ルの斜視図である。FIG. 1 is a perspective view of a thin web conveying roll that is one embodiment of the present invention.
搬送ロールＩＯは両端に支軸部１１を有する円筒形の金
属ロールからなり、磁気記録媒体両端部の非磁性面に対
応する両端近傍表面に係止突起１２が周方向に配設され
ている。The transport roll IO is made of a cylindrical metal roll having support shafts 11 at both ends, and locking protrusions 12 are disposed in the circumferential direction on surfaces near both ends corresponding to the non-magnetic surfaces at both ends of the magnetic recording medium.
前記係止突起１２は、塩化ビニル樹脂から成る矩形状の
薄いプラスチック片を接着剤で等間隔に接着して形成さ
れている。The locking protrusions 12 are formed by gluing rectangular thin plastic pieces made of vinyl chloride resin at equal intervals with an adhesive.
そして、この搬送ロール１０は、例えば磁気記録媒体の
磁性層表面に潤滑剤層を設ける装置やウェブの裏面にへ
ツク層を設ける装置等の、磁気記録媒体製造装置内に配
設され、前記磁気記録媒体の走行方向を変えたりして前
記磁気記録媒体の搬送経路を構成している。The conveyance roll 10 is disposed in a magnetic recording medium manufacturing apparatus such as an apparatus for providing a lubricant layer on the surface of a magnetic layer of a magnetic recording medium or an apparatus for forming a hexagonal layer on the back surface of a web. A transport path for the magnetic recording medium is configured by changing the running direction of the recording medium.
第２図は厚さ１０μｍ以下の薄手ウェブ１８上に強磁性
金属薄膜から成る磁性層１６を蒸着された磁気記録媒体
１４の搬送状態の説明図である。第２図に示すように、
前記搬送ロール１０に配設された係止突起１２は、前記
磁気記録媒体１４の磁性層１６の形成領域には位置せず
、ウェブ１８の耳部１８ａ、１８ｂのみに接するように
設置される。FIG. 2 is an explanatory view of the conveyance state of the magnetic recording medium 14 in which a magnetic layer 16 made of a ferromagnetic metal thin film is deposited on a thin web 18 having a thickness of 10 μm or less. As shown in Figure 2,
The locking protrusions 12 provided on the transport roll 10 are not located in the area where the magnetic layer 16 of the magnetic recording medium 14 is formed, but are placed so as to contact only the ears 18a and 18b of the web 18.
そこで、前記搬送ロール１０によって支持されている前
記磁気記録媒体１４が所定の張力を付与されて搬送され
ると、前記ウェブ１８の耳部１８ａ、 １８ｂに接して
おり、該ウェブ１８の搬送方向に対向する側の前記係止
突起１２の縁部が、前記耳部１８ａ、１８ｂの当接表面
に弾性的に食い込むことによって該耳部１８ａ、１８ｂ
を相対的に係止して駆動伝達力を高めるので、前記搬送
ロール１０は前記磁気記録媒体１４の移動に伴ってスリ
ップすることなく転回される。Therefore, when the magnetic recording medium 14 supported by the conveyance roll 10 is conveyed under a predetermined tension, it comes into contact with the ears 18a and 18b of the web 18, and is moved in the conveyance direction of the web 18. The edges of the locking protrusions 12 on the opposing sides elastically bite into the contact surfaces of the ears 18a, 18b, thereby causing the ears 18a, 18b to
Since the drive transmission force is increased by relatively locking the magnetic recording medium 14, the conveyance roll 10 is rotated without slipping as the magnetic recording medium 14 moves.
尚、前記係止突起１２は、例えば断面矩形、断面三角形
等に形成され、前記耳部１８ａ、１８ｂを相対的に係止
できる縁部を有する形状である。この係止突起１２は前
記耳部１８ａ、 １８ｂを相対的に係止したときに、前
記ウェブ１８が大きく湾曲しないような高さに設定され
、前記ウェブ１８の耳部１８ａ、 １８ｂ表面を傷つけ
ない形状に形成されるが、好ましくは係止突起１２の高
さは１０μｍ乃至５００μｍの範囲に設定される。又、
前記係止突起１２は、更に好ましくは前記搬送ロール１
０の円筒形状外周面の周方向に５ｍ乃至３０１ｍの等間
隔を以て断続的に配設され、且つその軸方向のウェブ接
触長さを５ｎ＋＋ｎ乃至１０はに設定される。The locking protrusion 12 is formed to have a rectangular or triangular cross section, for example, and has an edge that can relatively lock the ears 18a and 18b. This locking protrusion 12 is set at a height such that the web 18 does not curve significantly when the ears 18a, 18b are relatively locked, and does not damage the surface of the ears 18a, 18b of the web 18. Preferably, the height of the locking protrusion 12 is set in a range of 10 μm to 500 μm. or,
More preferably, the locking protrusion 12 is connected to the transport roll 1.
They are disposed intermittently at equal intervals of 5 m to 301 m in the circumferential direction of the cylindrical outer circumferential surface of No.
また、前記係止突起１２は一体成形により前記搬送ロー
ル１０上に設けても、別に形成した小片を前記搬送ロー
ル１０上に接着して設けても良く、該係止突起１２が別
体として形成される際には、前記搬送ロールｌＯと同等
の材質、ポリエステル、ポリオレフィン等の合成樹脂、
アルミニウム、ゴム等の素材により形成される。Further, the locking protrusion 12 may be provided on the conveyance roll 10 by integral molding, or may be provided by gluing a separately formed small piece onto the conveyance roll 10, or the locking protrusion 12 may be formed as a separate piece. When used, the same material as the transport roll 1O, synthetic resin such as polyester or polyolefin,
It is made of materials such as aluminum and rubber.
更に、前記係止突起１２の形状、大きさ、間隔等は上記
実施態様に限定するものではなく、種々の形態を採りう
ることは勿論である。Furthermore, the shape, size, spacing, etc. of the locking protrusions 12 are not limited to the above-mentioned embodiments, and it goes without saying that they can take various forms.
また、上記実施態様においては薄手ウェブ上に磁性層を
形成した磁気記録媒体の搬送ロールについて述べたが、
本発明はこれに限定するものではなく、磁性層の代わり
に薄手ウェブ上に写真感光層を形成して成る写真窓光材
料等の搬送ロールとしても好適であり、厚さ１０μｍ以
下の薄手ウェブを搬送案内する種りの薄手ウェブ搬送ロ
ールに通用することが可能である。Furthermore, in the above embodiment, a conveyance roll for a magnetic recording medium in which a magnetic layer is formed on a thin web is described;
The present invention is not limited to this, but is also suitable as a conveyor roll for photographic window optical materials, etc., in which a photographic photosensitive layer is formed on a thin web instead of a magnetic layer, and a thin web with a thickness of 10 μm or less is used. It can be used as a thin web conveyor roll for conveying and guiding.
〔発明の効果］
本発明によれば、連続的に走行する厚さが１０μｍ以下
の薄手ウェブをウェブ輻方向に亘ってその円筒形状外周
面で支持しながら搬送案内する薄手ウェブ搬送ロールが
、前記ウェブの幅方向両端縁近傍の不使用領域に対向、
接触する位置に、前記円筒形状外周面よりも強い駆動伝
達力を有する突起が周方向に沿って設けられているいる
ので、前記係止突起がウェブの不使用領域を相対的に確
実に係止する。[Effects of the Invention] According to the present invention, a thin web conveying roll that conveys and guides a continuously running thin web having a thickness of 10 μm or less while supporting it on its cylindrical outer circumferential surface in the web radius direction, facing the unused area near both edges in the width direction of the web,
Since a protrusion having a stronger drive transmission force than the cylindrical outer circumferential surface is provided along the circumferential direction at the contact position, the locking protrusion relatively reliably locks the unused area of the web. do.
即ち、前記搬送ロールに設けられた前記係止突起が前記
ウェブの不使用領域を相対的に係止して駆動伝達力を高
めることにより、前記搬送ロールと前記ウェブとのスリ
ップが防止され、前記ウェブ搬送時に該ウェブに作用す
る張力が低くても前記搬送ロールの回転率が低下するこ
とがないので、前記搬送ロールによって前記ウェブの表
面が擦られ、ウェブ上の形成層に傷が生してしまうこと
なくウェブを搬送することができる。That is, the locking protrusion provided on the transport roll relatively locks the unused area of the web to increase the drive transmission force, thereby preventing slip between the transport roll and the web. Even if the tension acting on the web during web conveyance is low, the rotation rate of the conveyance roll does not decrease, so the surface of the web is rubbed by the conveyance roll, and the formed layer on the web is not scratched. The web can be transported without being stored away.
従って、薄手ウェブ上に形成される形成層に損傷を生し
ることなく、良好に該薄手ウェブを搬送することができ
る薄手ウェブ搬送ロールをを提供することができる。Therefore, it is possible to provide a thin web conveyance roll that can satisfactorily convey a thin web without damaging the forming layer formed on the thin web.
以下、実施例によって本発明の効果をより明確にする。 Hereinafter, the effects of the present invention will be made clearer by way of Examples.
（実施例１）
厚み１０μｍ、幅１００閣、表面粗さ０．００３ ｔｔ
ｍ （Ｒａ）のポリエチレンテレフタレート支持体の
片面中央に、真空蒸着装置によりＣｏ−Ｎｉ合金を厚み
０．２μｍ、幅８０肛で蒸着して磁性層１６を設け、ウ
ェブ１８の幅方向両端にはそれぞれ１０ＩＩｌ１１１の
未蒸着部すなわち耳部１８ａ、１８ｂが形成される磁気
記録媒体を作成した。(Example 1) Thickness: 10 μm, width: 100 μm, surface roughness: 0.003 tt
A magnetic layer 16 is provided on the center of one side of a polyethylene terephthalate support of m (Ra) by vacuum deposition with a thickness of 0.2 μm and a width of 80 mm using a vacuum deposition apparatus, and a magnetic layer 16 is provided on both ends of the web 18 in the width direction. A magnetic recording medium was prepared in which undeposited portions of 10IIl111, that is, ear portions 18a and 18b were formed.
次に、第１図及び第２図に示す構成である直径７５ｍｍ
、長さ２３５．５ ａｍ、重さ９６０ ｇ （Ｄ金属ロ
ールニ、塩化ビニル樹脂から成る矩形のプラスチック片
である高さ１．０錘、周方向の幅りが５鴫の係止突起１
２を適宜配設して本発明に基づく？１敗の搬送ロール１
０を作製した。但し、各搬送ロール毎の前記係止突起１
２の周方向間隔Ｅは、それぞれ５．１０．２０３０ｍｍ
とし、更に、前記係止突起１２の軸方向の長さＣを５．
１０．Ｉｓ、２０跡とした。Next, a diameter of 75 mm, which is the configuration shown in Figures 1 and 2, is
, length 235.5 am, weight 960 g (D metal roll 2, rectangular plastic piece made of vinyl chloride resin, height 1.0 weight, circumferential width 5 mm locking protrusion 1)
2 as appropriate and based on the present invention? Transport roll 1 with 1 loss
0 was created. However, the locking protrusion 1 for each conveyance roll
The circumferential spacing E of 2 is 5, 10, and 2030 mm, respectively.
Further, the length C in the axial direction of the locking protrusion 12 is set to 5.
10. Is, 20 traces.
そして、第３図に示すように、上記各搬送ロールに前記
磁気記録媒体を巻付は角度が１０度、張力がそれぞれ０
．５ ｋｇ／１００髄、０．８ ｋｇ／１００画、１．
０ｋｇ／ｌｏｏｍ、前記各耳部１８ａ、 １８ｂの端部
が前記係止突起１２のほぼ中央に位置するようにそれぞ
れ設定して各々搬送し、前記各搬送ロールの回転率、及
び前記各搬送ロールによって搬送された磁気記録媒体の
磁性層の状態（面質）を調べた。その結果を第１表に示
した。As shown in FIG. 3, the magnetic recording medium is wound around each of the transport rolls at an angle of 10 degrees and a tension of 0.
．． 5 kg/100 marrow, 0.8 kg/100 strokes, 1.
0 kg/room, the ends of the ears 18a and 18b are set to be located approximately at the center of the locking protrusion 12, and each is conveyed. The state (surface quality) of the magnetic layer of the transported magnetic recording medium was examined. The results are shown in Table 1.
第１表
（係止突起高さ
１．０ｍ１１１
第
１
表（続き）
（実施例２）
本発明の搬送ロール１０に設ける各係止突起１２の高さ
を５００ μｍとした以外は上記実施例１の各搬送ロー
ルと同条件で前記磁気記録媒体を搬送して各搬送ロール
の回転率、及び前記各搬送ロールによって搬送された磁
気記録媒体の磁性層の状態（面質）を調べた。その結果
を第２表に示した。Table 1 (Height of locking protrusion 1.0 m111 Table 1 (continued) (Example 2) Example 1 above except that the height of each locking protrusion 12 provided on the conveyance roll 10 of the present invention was 500 μm The magnetic recording medium was transported under the same conditions as each transport roll, and the rotation rate of each transport roll and the state (surface quality) of the magnetic layer of the magnetic recording medium transported by each transport roll were examined.Results are shown in Table 2.
○：良好
△：不十分
×：不適（面質においては、ひび割れが発生）第
表
（係止突起高さ；５００μｍ）
第
表（続き）
ン主）
○：良好
Δ；不十分
×：不ａ（面質においては、ひび割れが発生）（実施例
３）
本発明の搬送ロール１０に設ける各係止突起１２の高さ
を１５０ μｍとした以外は上記実施例１の各搬送ロー
ルと同条件で前記磁気記録媒体を搬送して各搬送ロール
の回転率、及び前記各搬送ロールによって搬送された磁
気記録媒体の磁性層の状態（面質）を調べた。その結果
を第３表に示した。○: Good △: Insufficient ×: Unsuitable (cracking occurred in surface quality) Table (locking protrusion height: 500 μm) Table (continued) ○: Good Δ; Insufficient ×: Unsatisfactory (Cracks occur in the surface quality) (Example 3) The same conditions as those of the conveyance rolls of Example 1 above were used except that the height of each locking protrusion 12 provided on the conveyance roll 10 of the present invention was set to 150 μm. The magnetic recording medium was transported, and the rotation rate of each transport roll and the state (surface quality) of the magnetic layer of the magnetic recording medium transported by each transport roll were examined. The results are shown in Table 3.
第
表
（係止突起高さ
１５０μｍ）
第
表（続き）
（実施例４）
本発明の搬送ロール１０に設ける各係止突起１２の高さ
を１００μｍとした以外は上記実施例１の各搬送ロール
と同条件で前記磁気記録媒体を搬送して各搬送ロールの
回転率、及び前記各搬送ロールによって搬送された磁気
記録媒体の磁性層の状態（面質）を調べた。その結果を
第４表に示した。Table (Latching protrusion height 150 μm) Table (Continued) (Example 4) Each of the conveyance rolls in Example 1 above, except that the height of each locking protrusion 12 provided on the conveyance roll 10 of the present invention was 100 μm. The magnetic recording medium was transported under the same conditions as above, and the rotation rate of each transport roll and the state (surface quality) of the magnetic layer of the magnetic recording medium transported by each transport roll were examined. The results are shown in Table 4.
○；朗子
△：不十分
×：不適（面質においては、ひび割れが発生）第
４
表
（係止突起高さ
１００μｍ）
（実施例５）
本発明の搬送ロール１０に設ける各係止突起１２の高さ
を５０μｍとした以外は上記実施例１の各搬送ロールと
同条件で前記磁気記録媒体を搬送して各搬送ロールの回
転率、及び前記各搬送ロールによって搬送された磁気記
録媒体の磁性層の状態（面質）を調べた。その結果を第
５表に示した。○; Roko △: Insufficient ×: Unsuitable (cracks occur in surface quality) Table 4 (Locking protrusion height: 100 μm) (Example 5) The magnetic recording medium was transported under the same conditions as each transport roll in Example 1, except that the height was 50 μm, and the rotation rate of each transport roll and the magnetic layer of the magnetic recording medium transported by each transport roll were determined. The condition (surface quality) was investigated. The results are shown in Table 5.
表（続き）
○：ｓｊｊ子
△＝不十分
×：不適（面質においては、ひび割れが発生）表（続き
）
（実施例６）
本発明の搬送ロール１０に設ける各係止突起１２の高さ
を２０μｍとした以外は上記実施例１の各搬送ロールと
同条件で前記磁気記録媒体を搬送して各搬送ロールの回
転率、及び前記各搬送ロールによって搬送された磁気記
録媒体の磁性層の状態（面質）を調べた。その結果を第
６表に示した。Table (continued) ○: sjj child △ = Insufficient ×: Unsuitable (cracks occur in surface quality) Table (continued) (Example 6) Height of each locking protrusion 12 provided on the conveyance roll 10 of the present invention The magnetic recording medium was transported under the same conditions as each transport roll in Example 1, except that the diameter was set to 20 μm, and the rotation rate of each transport roll and the state of the magnetic layer of the magnetic recording medium transported by each transport roll were determined. (Surface quality) was investigated. The results are shown in Table 6.
○：良好
△：不十分
×；不通（面質においては、ひび割れが発生）（係止突
起高さ
２０μｍ）
第
表（続き）
注）
○：良好
△：不十分
×、不ａ（面質においては、ひび割れが発生）（実施例
７）
本発明の搬送ロール１０に設ける各係止突起１２の高さ
を１０μｍとした以外は上記実施例１の各搬送ロールと
同条件で前記磁気記録媒体を搬送して各搬送ロールの回
転率、及び前記各搬送ロールによって搬送された磁気記
録媒体の磁性層の状態（面質）を調べた。その結果を第
７表に示した。○: Good △: Insufficient (Example 7) The magnetic recording medium was processed under the same conditions as each of the transport rolls of Example 1, except that the height of each locking protrusion 12 provided on the transport roll 10 of the present invention was 10 μm. The rotation rate of each transport roll and the state (surface quality) of the magnetic layer of the magnetic recording medium transported by each of the transport rolls were examined. The results are shown in Table 7.
第
表
（体重突起高さ
１０Ｖ１ｍ）
第
表（続き）
（比較例１）
表面にアルマイト処理を施した直径７５ｍｍ、長さ２３
５、５印、重さ９６０ｇの金属ロールを搬送ロールとし
て用いた以外は上記実施例１の搬送ロールと同条件で磁
気記録媒体を搬送して搬送ロールの回転率、及び前、記
名搬送ロールによって搬送された磁気記録媒体の磁性層
の状態（面質）を調べた。Table (weight protrusion height 10V1m) Table (continued) (Comparative example 1) Alumite treated surface, diameter 75mm, length 23
The magnetic recording medium was transported under the same conditions as the transport roll of Example 1 above, except that a metal roll with a 5 mark and a weight of 960 g was used as the transport roll, and the rotation rate of the transport roll and the name transport roll were The state (surface quality) of the magnetic layer of the transported magnetic recording medium was examined.
その結果を第８表に示した。The results are shown in Table 8.
○：良好
△：不十分
×：不適（面質においては、ひび割れが発生）（比較例
２）
第４図に示す様な直径７５ａａｎ、長さ２３５．５ ｍ
ｍ、重さ９６０ｇの金属ロールに、塩化ビニル樹脂から
成るプラスチック製ヘルド２０を磁気記録媒体のウェブ
両端部が接する領域に周方向に沿って適宜設けた搬送ロ
ール２１を作製した。但し、該搬送ロール２１の前記ヘ
ルド２０の高さは１５０μｍ、軸方向の幅ａは１０ａ＋
ｍとした。○: Good △: Insufficient ×: Unsuitable (cracking occurred in surface quality) (Comparative Example 2) Diameter 75 aan, length 235.5 m as shown in Fig. 4
A conveying roll 21 was prepared by having plastic healds 20 made of vinyl chloride resin suitably provided along the circumferential direction in the area where both ends of the web of the magnetic recording medium contact each other. However, the height of the heald 20 of the conveyance roll 21 is 150 μm, and the axial width a is 10a+
It was set as m.
そして、ウェブ１８の各耳部１８ａ、１８ｂの端部は前
記ヘルド２０のほぼ中央に位置するように搬送し、上記
搬送ロール２１を用いた以外は上記実施例１の搬送ロー
ルと同条件で磁気記録媒体を搬送して搬送ロールの回転
率、及び前記各搬送ロールによって搬送された磁気記録
媒体の磁性層の状態を調べた。その結果を第９表に示し
た。Then, the web 18 is conveyed so that the end portions of the ears 18a and 18b are located approximately at the center of the heald 20, and the web 18 is magnetically conveyed under the same conditions as the conveyance roll of Example 1 except that the conveyance roll 21 is used. The recording medium was transported, and the rotation rate of the transport rolls and the state of the magnetic layer of the magnetic recording medium transported by each of the transport rolls were examined. The results are shown in Table 9.
第９表
第１表乃至第９表から明らかなように、搬送ロールの両
端近傍に係止突起１２を所定間隔で設けた場合には、該
係止突起１２が設けられていない場合に比べて搬送ロー
ラの回転率は良好であった。特に、ウェブの張力が低い
場合には前記係止突起１２が設けられていない搬送ロー
ラの回転率の低下が顕著である。また、第８表から明ら
かなように、搬送ロールの両端近傍に前記ヘルド２０を
設けた場合でも、ウェブの張力が低いと搬送ローラの回
転率も低下してしまった。Table 9 As is clear from Tables 1 to 9, when the locking protrusions 12 are provided at predetermined intervals near both ends of the conveyor roll, compared to the case where the locking protrusions 12 are not provided, The rotation rate of the conveyance roller was good. In particular, when the tension of the web is low, the rotation rate of the conveying roller not provided with the locking protrusion 12 is significantly reduced. Further, as is clear from Table 8, even when the healds 20 were provided near both ends of the conveyance roll, the rotation rate of the conveyance roller also decreased when the tension of the web was low.
尚、搬送ローラ１０の回転率は係止突起１２の高さが高
いほど高くて好適であるが、高さが１ｌＩＩｆｆ１以上
になると磁性層１６にひび割れが発生した。また、係止
突起１２の高さが１０μｍ以下と低いと搬送ローラ１０
と磁気記録媒体１４とがスリングして回転率が低下して
しまう。したがって、係止突起１２の高さは１０〜５０
０１！ｍが好ましいことが判った。The rotation rate of the conveying roller 10 is preferably higher as the height of the locking protrusion 12 is higher, but when the height exceeds 1lIIff1, cracks occur in the magnetic layer 16. Furthermore, if the height of the locking protrusion 12 is as low as 10 μm or less, the conveyance roller 10
This causes the magnetic recording medium 14 to sling, resulting in a decrease in the rotation rate. Therefore, the height of the locking protrusion 12 is 10 to 50 mm.
01! It was found that m is preferable.
更に、第１表乃至第９表より、前記係止突起１２を設け
る周方向の間隔は５〜３０直の範囲で、且つその軸方向
のウェブ接触長さは５〜１０ａｍの範囲が好適であるこ
とが判った。Furthermore, from Tables 1 to 9, it is preferable that the circumferential interval at which the locking protrusions 12 are provided is in the range of 5 to 30 squares, and the web contact length in the axial direction is in the range of 5 to 10 am. It turned out that.
第１図は本発明に基づく磁気記録媒体搬送ローラの斜視
図、第２図及び第３図は搬送ローラと磁気記録媒体との
関係図、第４図は比較例のための搬送ローラの構成図で
ある。
（図中符号）
１０ 搬送ローラ １１ 支軸部１２ 突起
１４ 磁気記録媒体１６−磁性層
１８−支持体１８ａ、１８ｂ−一耳部 ２０−＝：
ルト２１−搬送ローラFIG. 1 is a perspective view of a magnetic recording medium conveyance roller according to the present invention, FIGS. 2 and 3 are relationship diagrams between the conveyance roller and the magnetic recording medium, and FIG. 4 is a configuration diagram of a conveyance roller for a comparative example. It is. (Symbols in the figure) 10 Conveyance roller 11 Support shaft 12 Protrusion
14 Magnetic recording medium 16-magnetic layer
18-support 18a, 18b-one ear portion 20-=:
route 21 - conveyance roller
Claims (5)
ェブをウェブ幅方向に亘ってその円筒形状外周面で支持
しながら搬送案内する薄手ウェブ搬送ロールであって、
前記ウェブの幅方向両端縁近傍の不使用領域に対向、接
触する位置に、前記円筒形状外周面よりも強い駆動伝達
力を有する突起が周方向に沿って設けられていることを
特徴とする薄手ウェブ搬送ロール。(1) A thin web conveyance roll that conveys and guides a continuously running thin web having a thickness of 10 μm or less across the web width direction while supporting it on its cylindrical outer peripheral surface,
A thin web characterized in that protrusions having a stronger drive transmission force than the cylindrical outer circumferential surface are provided along the circumferential direction at positions facing and in contact with unused areas near both widthwise edges of the web. Web conveyor roll.
もしくは合成樹脂材から成ることを特徴とする請求項（
１）に記載の薄手ウェブ搬送ロール。Claim (2), characterized in that the protrusion is made of the same material as the cylindrical outer circumferential surface or a synthetic resin material (
The thin web conveyance roll described in 1).
囲に設定されることを特徴とする請求項（１）に記載の
薄手ウェブ搬送ロール。(3) The thin web conveying roll according to claim (1), wherein the height of the protrusion is set in a range of 10 μm to 500 μm.
ｍｍ乃至３０ｍｍの等間隔を以て断続的に配設され、且
つその軸方向のウェブ接触長さを５ｍｍ乃至１０ｍｍに
設定されることを特徴とする請求項（３）に記載の薄手
ウェブ搬送ロール。(4), the protrusion extends 5 times in the circumferential direction of the cylindrical outer circumferential surface;
The thin web conveyance roll according to claim 3, characterized in that the rolls are disposed intermittently at equal intervals of 30 mm to 30 mm, and the web contact length in the axial direction is set to 5 mm to 10 mm.
気記録層を層設されていることを特徴とする請求項（３
）又は請求項（４）に記載の薄手ウェブ搬送ロール。(5) The thin web is characterized in that a magnetic recording layer is provided on at least one surface of the thin web.
) or the thin web conveyance roll according to claim (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2049607A JPH03256964A (en) | 1990-03-02 | 1990-03-02 | Thin web conveyor roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2049607A JPH03256964A (en) | 1990-03-02 | 1990-03-02 | Thin web conveyor roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03256964A true JPH03256964A (en) | 1991-11-15 |
Family
ID=12835923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2049607A Pending JPH03256964A (en) | 1990-03-02 | 1990-03-02 | Thin web conveyor roll |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03256964A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008174378A (en) * | 2007-01-22 | 2008-07-31 | Fujifilm Corp | Conveying roller, and optical film manufacturing method using the same |
| JP2013180863A (en) * | 2012-03-01 | 2013-09-12 | Nikon Corp | Conveyance device |
| JP2019059574A (en) * | 2017-09-26 | 2019-04-18 | 住友化学株式会社 | Conveying method and conveying device for film, and manufacturing method and manufacturing device for treated film |
-
1990
- 1990-03-02 JP JP2049607A patent/JPH03256964A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008174378A (en) * | 2007-01-22 | 2008-07-31 | Fujifilm Corp | Conveying roller, and optical film manufacturing method using the same |
| JP2013180863A (en) * | 2012-03-01 | 2013-09-12 | Nikon Corp | Conveyance device |
| JP2019059574A (en) * | 2017-09-26 | 2019-04-18 | 住友化学株式会社 | Conveying method and conveying device for film, and manufacturing method and manufacturing device for treated film |
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