JPS58175178A - Laminated transparent friction plate for cassette - Google Patents
Laminated transparent friction plate for cassetteInfo
- Publication number
- JPS58175178A JPS58175178A JP5786182A JP5786182A JPS58175178A JP S58175178 A JPS58175178 A JP S58175178A JP 5786182 A JP5786182 A JP 5786182A JP 5786182 A JP5786182 A JP 5786182A JP S58175178 A JPS58175178 A JP S58175178A
- Authority
- JP
- Japan
- Prior art keywords
- lubricant
- magnetic tape
- cassette
- resin
- friction plate
- 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
- 239000000314 lubricant Substances 0.000 claims abstract description 17
- 229920005989 resin Polymers 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 13
- 229920002050 silicone resin Polymers 0.000 claims abstract description 6
- 239000002985 plastic film Substances 0.000 claims abstract description 5
- 229920006255 plastic film Polymers 0.000 claims abstract description 5
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 4
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 4
- 239000000057 synthetic resin Substances 0.000 claims abstract description 4
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 3
- 239000011247 coating layer Substances 0.000 claims description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- -1 polyethylene terephthalate Polymers 0.000 abstract description 13
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract description 4
- 239000005020 polyethylene terephthalate Substances 0.000 abstract description 4
- 238000007259 addition reaction Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 11
- 238000004804 winding Methods 0.000 description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 229920006267 polyester film Polymers 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 239000002216 antistatic agent Substances 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 2
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 241001131796 Botaurus stellaris Species 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229960000541 cetyl alcohol Drugs 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- JRBPAEWTRLWTQC-UHFFFAOYSA-N dodecylamine Chemical compound CCCCCCCCCCCCN JRBPAEWTRLWTQC-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 125000005010 perfluoroalkyl group Chemical group 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- HFQQZARZPUDIFP-UHFFFAOYSA-M sodium;2-dodecylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O HFQQZARZPUDIFP-UHFFFAOYSA-M 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000004246 zinc acetate Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
- G11B23/04—Magazines; Cassettes for webs or filaments
- G11B23/08—Magazines; Cassettes for webs or filaments for housing webs or filaments having two distinct ends
- G11B23/087—Magazines; Cassettes for webs or filaments for housing webs or filaments having two distinct ends using two different reels or cores
- G11B23/08707—Details
- G11B23/08757—Guiding means
- G11B23/08764—Liner sheets
Abstract
Description
【発明の詳細な説明】
磁気テープを収納するカセットには１カセツトを構成す
る２個のケースの内面に７リタシヨン板が取付けられて
おり、巻きテープの側面が上記フリクション板に接触し
ながら回転することによって磁気テープが円滑に走行し
１かつ巻き乱れを防止するようにしている。[Detailed Description of the Invention] A cassette for storing a magnetic tape has seven retardation plates attached to the inner surfaces of two cases constituting one cassette, and the side surface of the wound tape rotates while contacting the friction plate. This allows the magnetic tape to run smoothly and prevent winding irregularities.
カセットの構造の一例を第１図によって簡単に説明する
と、カセット１は対称的に成型された２個のケース２で
構成され１該ケースＢには〜磁気テープ３を巻き付けた
り−ル４を回転自在に支持するための環状突出部５−磁
気テープ３０走行方向を変えるガイドリーラ６を回転自
在に支持するためのローラビン７１走行方向を変えるた
めのガイドビン８．２個のケース２を組合せ固着するた
めの複数個のビス穴９、および走行する磁気テープ３に
磁気ヘッドが接触するための磁気ヘッド穴１０などが一
体的に成型されている。そしてケ−ス２の中央部にはナ
ース２とほぼ同じ長さを有する７リクシミン板１１が取
付けられ蔦該７リクシヨン板１１に１巻き状態の磁気テ
ープ３の側面が接触しながら回転するようになっている
。７リクシヨン板１１は、第２図に示すように、上記ケ
ース２の環状突出部５に嵌合される嵌合孔１！、および
巻き状態を見るための方形穴１３を有し、かつ長さ方向
の突条１４が形成されている。To briefly explain an example of the structure of a cassette with reference to FIG. 1, a cassette 1 is composed of two symmetrically molded cases 2.A magnetic tape 3 is wound around the case B, and a rotating rod 4 is wound around the case B. Annular protrusion 5 for freely supporting the magnetic tape 30 Roller bin 71 for rotatably supporting the guide reeler 6 for changing the running direction Guide bin 8 for changing the running direction Two cases 2 are combined and fixed. A plurality of screw holes 9 for this purpose, a magnetic head hole 10 for the magnetic head to come into contact with the running magnetic tape 3, and the like are integrally molded. At the center of the case 2, there is attached a 7-reaction plate 11 having approximately the same length as the nurse 2, so that the side surface of the single-wound magnetic tape 3 is in contact with the 7-reaction plate 11 and rotates. It has become. As shown in FIG. , and a square hole 13 for viewing the winding state, and a longitudinal protrusion 14 is formed.
回転する巻きテープの側面と接触している７リクシヨン
板の接触面は滑り性が良好であることが要求されるが鳥
この滑り性は磁気テープの走行使用回数が増加するに伴
って低下し易く、長時間使用したとき摩擦抵抗が大きく
なって巻きトルクが増大し１ワウ−％７ラツタなどが発
生して再生音質が低下し１さらには走行が停止されるこ
とがある。The contact surface of the 7-reaction plate that is in contact with the side surface of the rotating wound tape is required to have good sliding properties, but this slipping property tends to decrease as the number of times the magnetic tape is run and used increases. When used for a long period of time, the frictional resistance becomes large, the winding torque increases, 1 wah-%7 rattling occurs, the reproduced sound quality deteriorates, and the running may even be stopped.
従って７リクシ目ン板の接触面は、滑り性が良好である
とともに走行接続性が要求される。Therefore, the contact surface of the seventh rickshaw board is required to have good sliding properties and good running connectivity.
一方・磁気テープとの接触による静電気の発生を防止し
−また組立加工時にほこりが付着するのを防止するため
に帯電防止性が要求され、この帯電防止性は上記滑り性
の定行接続性にも影響を及ぼすので１７リクシヨン板に
は帯電防止性が要求される。On the other hand, antistatic properties are required to prevent the generation of static electricity due to contact with the magnetic tape and to prevent dust from adhering during assembly. 17 Reaction plates are required to have antistatic properties.
上記の要求を満足するものとして、従来、一般に使用さ
れている７リクシヨン板は、紙もしくは未延伸ポリオレ
フィン糸フィルムに、カーボンブラックおよび滑剤を含
浸、混合もしくは積層などの手段によってその機能を付
与させていたものである。In order to satisfy the above requirements, the conventionally commonly used 7-reaction plates are made by impregnating, mixing, or laminating carbon black and a lubricant to paper or an undrawn polyolefin yarn film to impart its functionality. It is something that
上記従来の７リクシヨン板は黒色かつ不透明であす箋ケ
ースの外面に貼着された表示紙によって隠されており、
またカセット内の磁気テープの巻き状態の全部は見えな
いものであった。そこでカセット内の磁気テープの巻き
状態の全部が見えるようにするためには、上記７リクシ
ヨン板は透明でなければならない。近時、カーボンブラ
ックを使用しない透明なフリクション板が試みられてい
るが１いずれも帯電防止性を欠き１ｔた耐久走行性が著
しく低いものである。この発明は帯電防止性を有し１し
かも耐久走行性の良い透明な７リクシロン板を提供する
ものである。The conventional 7-rection board mentioned above is black and opaque and is hidden by a display paper pasted on the outside of the note case.
Furthermore, the entire winding state of the magnetic tape inside the cassette could not be seen. Therefore, in order to be able to see the entire winding state of the magnetic tape in the cassette, the 7-reaction plate must be transparent. Recently, transparent friction plates that do not use carbon black have been attempted, but all of them lack antistatic properties and have extremely low running durability. The present invention provides a transparent RIXILON board that has antistatic properties and has good running durability.
すなわちこの発明は＼帯電防止性を持つプラスクション
板である。In other words, this invention is a plustion plate with antistatic properties.
この発明における帯電防止性を持つプラスチックフィル
ムとは）公知のようにがりプロピレンなどのオレフィン
系樹脂１ポリエチレンテレフタレートなどのエステル樹
脂１ナイロン６などのアミド系樹脂などに帯電防止剤を
混合した後押出成形したフィルムやそれ自体帯電防止性
を持つ樹脂（例えば帯電防止官能基を有する単位を共重
合した樹脂）を押出成形したフィルム、あるいは帯電防
止性を持つ樹脂を共重合したものに帯電防止剤を混合し
た後押出成形したフィルムなどが例示されるが、それら
に限定されない。特にポリエチレンテレフタレート系樹
脂に帯電防止性を付与したものが好ましい。また、この
発明に使用される滑剤としては、シリコーン系樹脂、フ
ッ素系樹脂、パラフィン、塩素化パラフィンなどの炭化
水素、ステアリルアルコール１セチルアルコールなどの
高級アルコールその他脂肪酸、脂肪酸エステル、脂肪酸
塩１ポリエーテルなどが例示されるが１特に付加反応型
ポリシロキサンなどのシリコーン系を脂およびパーフル
オロアルキル化合物などのフッ素系樹脂が好適である。The plastic film with antistatic properties in this invention is made by mixing an antistatic agent with 1 olefin resin such as bittern propylene, 1 ester resin such as polyethylene terephthalate, 1 amide resin such as nylon 6, and then extrusion molding. An antistatic agent is mixed into a film, a film extruded from a resin that itself has antistatic properties (for example, a resin copolymerized with units having antistatic functional groups), or a copolymerized resin that has antistatic properties. Examples include, but are not limited to, post-extruded films. In particular, polyethylene terephthalate resins with antistatic properties are preferred. In addition, the lubricants used in this invention include silicone resins, fluororesins, paraffins, hydrocarbons such as chlorinated paraffins, stearyl alcohol, higher alcohols such as cetyl alcohol, fatty acids, fatty acid esters, fatty acid salts, polyethers, etc. Among them, silicone resins such as addition reaction type polysiloxane and fluororesins such as perfluoroalkyl compounds are particularly suitable.
滑剤は単独で塗布してもよく、もしくは滑剤を熱可開性
合成樹脂と混合して塗布したものでもよい。この熱可を
性合成樹脂としては、アクリル系樹脂１ポリエステル系
樹脂、塩素化ポリプロピレン系樹脂、酢酸ビニル系樹脂
など、およびこれらの混合樹脂が例示される。The lubricant may be applied alone, or a mixture of the lubricant and a heat-openable synthetic resin may be applied. Examples of the thermoplastic synthetic resin include acrylic resins, polyester resins, chlorinated polypropylene resins, vinyl acetate resins, and mixed resins thereof.
上記滑剤塗布層は滑剤付置がｏ、ｏｏａ〜１９／−１好
ましくは０．０１〜０，５９／ｄであり、０．００５り
／ｄ未満であると動摩擦係数が大きくなって走行磁気テ
ープの巻取り時のトルクが大きくなりｚ １ｐ／ｄを越
えると表面にぬめり感を生ずる。The lubricant applied to the above-mentioned lubricant coating layer is o,ooa to 19/-1, preferably 0.01 to 0,59/d, and if it is less than 0.005 l/d, the coefficient of dynamic friction becomes large and the running magnetic tape If the torque during winding becomes large and exceeds z 1p/d, the surface will feel slimy.
この発明の７リクシヨン板は、透明性であり、カセット
内部の磁気テープの巻き取り状態全体を透視することが
できる。また帯電防止性を有するので＼走行時の帯電に
よる走行性が低下したり、カセット組立時や磁気テープ
走行時に車検が付着したりするのが防止される。The 7-reaction plate of the present invention is transparent and allows the entire winding state of the magnetic tape inside the cassette to be seen through. In addition, since it has antistatic properties, it prevents running performance from being deteriorated due to charging during running, and from adhering to vehicle inspection marks when assembling a cassette or running a magnetic tape.
以下にこの発明の詳細な説明する。This invention will be explained in detail below.
実施例 Ｌ
フェノール／テトラクロルエタン＝＝６／４Ｕ合溶液を
用い３０℃で測定した。極限粘度が０．６２のポリエチ
レンテレフタレート、ビスヒドロキシエチルテレ７タレ
ー）４００部、分子量４０００のポリエチレンオキサイ
ドグリコール４００ 部、三酸化アンチモン０．４部属
酢酸亜鉛０．４ ｓを通常のテレフタル酸素ポリエステ
ルと同様な重合方法で重合したプルツク共重合ポリエス
テルとドデシルベンゼンスルホン酸ナトリウム塩（１，
０重ｊｉ１％）をプレンターで配合した後押出成形し、
厚さ７５μの帯電防止性ポリエステルフィルムを得た。Example L Measurement was carried out at 30°C using a 6/4U phenol/tetrachloroethane solution. 400 parts of polyethylene terephthalate with an intrinsic viscosity of 0.62, 400 parts of polyethylene oxide glycol with a molecular weight of 4000, 0.4 parts of antimony trioxide, and 0.4 parts of zinc acetate in the same manner as ordinary terephthalic oxygen polyester. Prusk copolymerized polyester polymerized using a polymerization method and dodecylbenzenesulfonic acid sodium salt (1,
0 weight ji 1%) was blended in a printer and then extruded,
An antistatic polyester film having a thickness of 75 μm was obtained.
この帯電防止性ポリエステルフィルムの片面に１商品名
シリコーンに５７７０ （信越化学工業社製）１００重
量部と触媒（商品名ＰＬ−３Ｓ信越化学工業社製）０．
６重衆部とをトルエン・酢酸エチル混合溶媒（混合割合
１：１）に溶解した３％溶液を固形分付量０．１９／♂
に塗布し、１５０ｔ１２０秒間加熱してシリコーン系樹
脂塗膜層を持つフリクション板を得た。One side of this antistatic polyester film was coated with 100 parts by weight of silicone (trade name) 5770 (manufactured by Shin-Etsu Chemical Co., Ltd.) and 0.0 parts by weight of a catalyst (trade name PL-3S made by Shin-Etsu Chemical Co., Ltd.).
A 3% solution of 6 heavy parts dissolved in a mixed solvent of toluene and ethyl acetate (mixing ratio 1:1) was prepared with a solid content of 0.19/♂
and heated at 150t for 120 seconds to obtain a friction plate having a silicone resin coating layer.
実施例 ２
溶融指数２．０のポリプロピレン１００重量部に対し１
ラウリルアミンにエチレンオキシド８モルを添加した帯
電防止剤１重凍部をプレンターで配合した後押出成形し
１厚さ５０μの帯電防止性ポリプロピレンフィルムを得
た。この帯電防止性ホ。Example 2 1 for 100 parts by weight of polypropylene with a melting index of 2.0
One heavy freeze portion of an antistatic agent prepared by adding 8 moles of ethylene oxide to laurylamine was blended in a plotter, and then extruded to obtain an antistatic polypropylene film having a thickness of 50 μm. This antistatic property.
リプロピレンフイルムの片面に、フッ素系樹脂（商品名
ダイ７リーＭＳ４４３ ダイキン工業社製）１．
２重量部属アクリル系樹脂（商品名７寸うロイドＢ７２
゜三菱レイヨン社製）１００重量部、塩素化ポリプロピ
レン樹脂（商品名バードレン１３ＬＰ）１０重量部力）
らなる樹脂組成液（溶媒トルエン／メチルエチルケトン
濃度２０％）を固形分付量１．Ｈｔ７ｉに塗布・乾燥し
て７リクシヨン板を得た、
比較例 Ｌ
帯電防止性を付与していないポリエステルフィルム（商
品名に５００１東洋紡績社製）７５μの片面に、上記実
施例１のシリコーン系樹脂塗膜層を設けたフリクション
板。Fluorine resin (trade name: Dai7ly MS443, manufactured by Daikin Industries, Ltd.) 1.
2 parts by weight acrylic resin (product name 7sunroid B72
゜Mitsubishi Rayon Co., Ltd.) 100 parts by weight, chlorinated polypropylene resin (trade name Birdren 13LP) 10 parts by weight)
A resin composition liquid (solvent toluene/methyl ethyl ketone concentration 20%) was added at a solid content of 1. Comparative Example L: A 75 μm polyester film (trade name: 5001, manufactured by Toyobo Co., Ltd.) without antistatic property was coated on Ht7i and dried to obtain a 75μ silicone resin from Example 1. Friction plate with a coating layer.
比較例 ２
帯電防止性を付与していないポリエステルフィルム（商
品名Ｅ５００１東洋紡績社製）７５μに滑剤塗布層を設
けないものである。Comparative Example 2 A 75 μm polyester film (trade name: E5001, manufactured by Toyobo Co., Ltd.) that is not provided with antistatic properties is not provided with a lubricant coating layer.
上記各実施例、比較例および市販品の性能を下記表に示
す。The performance of each of the above Examples, Comparative Examples and commercially available products is shown in the table below.
表
上記表におけるヘーズは、ＪｘＳ−に６７８２に準拠し
ヘーズメータ（東洋精機社製）にて測定した全光線透過
率（％）に対する散乱光線透過率（％）の百分比で示し
た値であり、値が大きいほど透明性が低い。The haze in the table above is the value expressed as a percentage of the scattered light transmittance (%) to the total light transmittance (%) measured with a haze meter (manufactured by Toyo Seiki Co., Ltd.) in accordance with JxS-6782. The larger the value, the lower the transparency.
ａｍ防止性は１スタチツクオネストメータ（水戸商会製
）によって２５℃、６０％ＲＨの条件下で帯電圧を測定
し、帯電圧の減衰半減期になる時間（秒）で示した値で
あり１値の小さいほど帯電防止性が良好である。The am prevention property is a value expressed by measuring the electrostatic voltage using a static honest meter (manufactured by Mito Shokai) under the conditions of 25°C and 60% RH, and expressing the time (seconds) required for the decay half-life of the electrostatic voltage. The smaller the value, the better the antistatic property.
動摩擦係数はＳＡＳＴＭ−Ｄ１８９４に準拠し、無処理
のポリエステルフィルム（商品名Ｅ５００１、厚さ７５
．１１％東洋紡°績社製）の基準フィルム面に対する各
試料の易滑面との動摩擦係数を示した。The coefficient of dynamic friction is based on SASTM-D1894 and is based on untreated polyester film (trade name E5001, thickness 75
．． The coefficient of dynamic friction between the easy-slip surface of each sample and the reference film surface of 11% (manufactured by Toyobo Seki Co., Ltd.) is shown.
耐久走行性は、市販のカセットに、磁気テープの両側面
が接触する２枚の７リクシヨン板に種々の７リクシヨン
板を取換えて使用し、再生機（ナショナルＲＱ−３３６
）で磁気テープを速送りで往復走行させ、磁気テープ走
行時のトルクの相対値を電流負荷で検出しλ往復回数が
５０．１００．２００．３００．４００の各同時の電流
負荷値を記録し、上記市販品の初期電流負荷値に対する
各試料片の各走行回数での電流負荷値の電流負荷相対値
な第３図のグラフで示した。表中の○印は４００回でワ
ウ１フラツタを発生しないもの、Ｘ印は４００回でワウ
、７ラツタが発生し１再生音質が低下するものである。Durability was tested using a commercially available cassette, replacing various 7-reaction plates with two 7-reaction plates that touch both sides of the magnetic tape, and using a playback machine (National RQ-336).
), the magnetic tape is run back and forth at high speed, the relative value of torque during the running of the magnetic tape is detected by the current load, and the current load values at each time when the number of λ reciprocations is 50.100.200.300.400 are recorded. The graph in FIG. 3 shows the relative current load value of the current load value at each number of runs of each sample piece with respect to the initial current load value of the above-mentioned commercially available product. In the table, the circle mark indicates that no wow and 1 flutter occurs after 400 repetitions, and the X mark indicates that wah and 7 rattle occur after 400 repetitions, and the quality of the reproduced sound deteriorates.
上表でみられるように１この発明の７リクシヨン板は透
明であるばかりか１その性能は市販品（黒色）とほとん
ど変らない。また帯電防止性が付与されていない比較例
は帯電防止性が低下し１動摩擦係数が大きくなり、耐久
走行性が著しく劣っている。As seen in the table above, 1 the 7-reaction plate of the present invention is not only transparent, 1 but its performance is almost the same as that of the commercially available product (black). Further, in the comparative example to which antistatic properties were not imparted, the antistatic properties were decreased, the coefficient of 1-dynamic friction was increased, and the running durability was significantly inferior.
第１図は通常のカセットの正面図１第２図は７リクシヨ
ン板の一例の斜視図、第３図は耐求走行試験による速送
り往復走行回数と電流負荷相対値との関係を示すグラフ
である。
１１；７リクシヨン板。
特許出願人 東洋紡績株式会社
第１図Figure 1 is a front view of a normal cassette. Figure 2 is a perspective view of an example of a 7-reaction plate. Figure 3 is a graph showing the relationship between the number of fast-feed reciprocating runs and the relative value of current load based on a running test. be. 11;7 riction board. Patent applicant: Toyobo Co., Ltd. Figure 1
Claims (1)
帯電防止性を持つプラスチックフィルムがジョン板。 （１） 滑剤がシリコーン系樹脂または、フッ素系（
４）滑剤塗布層がフッ素系樹脂もしくはシリコーン系樹
脂と熱可壓性合成樹脂との混合物である関する。(1) Plastic film with antistatic properties (2)
John board is a plastic film with antistatic properties. (1) The lubricant is silicone-based resin or fluorine-based (
4) The lubricant coating layer is a mixture of a fluororesin or a silicone resin and a thermoplastic synthetic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5786182A JPS58175178A (en) | 1982-04-06 | 1982-04-06 | Laminated transparent friction plate for cassette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5786182A JPS58175178A (en) | 1982-04-06 | 1982-04-06 | Laminated transparent friction plate for cassette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58175178A true JPS58175178A (en) | 1983-10-14 |
Family
ID=13067771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5786182A Pending JPS58175178A (en) | 1982-04-06 | 1982-04-06 | Laminated transparent friction plate for cassette |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58175178A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0279467A2 (en) * | 1987-02-20 | 1988-08-24 | Dai Nippon Insatsu Kabushiki Kaisha | Heat transfer sheet |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5129010A (en) * | 1974-09-05 | 1976-03-11 | Oki Electric Ind Co Ltd | Denwakokanmoniokeru fusetsukyokushikibetsuhoshiki |
| JPS5117011B1 (en) * | 1970-10-21 | 1976-05-29 | ||
| JPS5429623A (en) * | 1977-08-09 | 1979-03-05 | Teijin Ltd | Slip sheet for magnetic tape cassette |
-
1982
- 1982-04-06 JP JP5786182A patent/JPS58175178A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5117011B1 (en) * | 1970-10-21 | 1976-05-29 | ||
| JPS5129010A (en) * | 1974-09-05 | 1976-03-11 | Oki Electric Ind Co Ltd | Denwakokanmoniokeru fusetsukyokushikibetsuhoshiki |
| JPS5429623A (en) * | 1977-08-09 | 1979-03-05 | Teijin Ltd | Slip sheet for magnetic tape cassette |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0279467A2 (en) * | 1987-02-20 | 1988-08-24 | Dai Nippon Insatsu Kabushiki Kaisha | Heat transfer sheet |
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