JPS58102350A - Conductive disc type recording carrier - Google Patents
Conductive disc type recording carrierInfo
- Publication number
- JPS58102350A JPS58102350A JP20043181A JP20043181A JPS58102350A JP S58102350 A JPS58102350 A JP S58102350A JP 20043181 A JP20043181 A JP 20043181A JP 20043181 A JP20043181 A JP 20043181A JP S58102350 A JPS58102350 A JP S58102350A
- Authority
- JP
- Japan
- Prior art keywords
- vinyl chloride
- higher fatty
- fatty acid
- parts
- higher aliphatic
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
- G11B9/06—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electrical capacitance; Record carriers therefor
- G11B9/061—Record carriers characterised by their structure or form or by the selection of the material; Apparatus or processes specially adapted for the manufacture of record carriers
- G11B9/063—Record carriers characterised by their structure or form or by the selection of the material; Apparatus or processes specially adapted for the manufacture of record carriers characterised by the selection of the material
- G11B9/068—Moulding resin compositions
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は静電容量式ビデオディスクなどに用いる導電性
ティスフ型記録担体に関するもので、特に加工性に優れ
、走行安定性が高く、量産性と信頼性に優れたディスク
型の記録担体を提供しようとするものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a conductive TiSF-type record carrier used in capacitive video discs, etc., and is particularly suitable for discs with excellent processability, high running stability, mass productivity, and reliability. It seeks to provide a type of record carrier.
静電容量式ビデオディスクなどの導電性ディスク型記録
担体は、従来レコード工業の分野でのディスクを得るだ
めの工法、すなわち表面に情報信月の施されたスタンパ
−をプレス機のモールドケース上に設置し、塩化ビニル
系拐料を圧縮成形してディスクを製造する方法に準じて
行なわれる。Conductive disk-type record carriers such as capacitive video disks are manufactured using the traditional method of obtaining disks in the recording industry, namely, by stamping a stamper with an information signature on the surface and placing it on a mold case of a press. The process is carried out in accordance with the method of manufacturing a disk by installing a vinyl chloride-based material and compression molding it.
しかし、このような導電性ディスク型記録和体において
は、ディスクからの静電容量的読み取りが可能になるに
充分な量の導電性粒子、たとえば炭素点を樹脂拐］」中
に相当量混入しなければならないこと、約１ミクロン径
の信号を忠実にプレス複製しなければならないために樹
脂材料の溶融流動性が適当でなければならないこと、ス
タンパ−を汚染することなく連続的にプレスが可能なこ
と、ディスク再生時にディスクと再生針の間に生じる動
的摩擦係数が低く安定しており、再生針によりディスク
表面が損傷されないことなど、従来レコードに要求され
る以上の品質要求がなされる。However, in such a conductive disk-type recording medium, a sufficient amount of conductive particles, such as carbon dots, are mixed into the resin to enable capacitance reading from the disk. The melt fluidity of the resin material must be appropriate in order to faithfully reproduce a signal with a diameter of approximately 1 micron by pressing, and the stamper must be able to be pressed continuously without contaminating it. In particular, quality requirements are higher than those required for conventional records, such as a low and stable dynamic coefficient of friction that occurs between the disc and the playback stylus during disc playback, and no damage to the disc surface by the playback stylus.
これらの品質要求を満足するために、ディスク材料とし
ての樹脂材料には多くの提案がなされており、たとえば
樹脂材料としては塩化ビニル系樹脂を始めいくつかの単
一重合体、共重合体が知られている。まだ、炭素黒とし
ては、樹脂料°料との混線性がよくかつ電気抵抗の低い
ものが用いられる。樹脂材料として塩化ビニル系樹脂を
用いる場合には、混練、押出、成型時に樹脂材料の熱分
解を防ぐために熱安定剤が用いられる。さらに樹脂材料
の溶融粘度を下げ、成型性を改良するために滑剤が使用
される。さらに樹脂材料の溶融粘度を下げ、混練機、押
出機における粘着性を減じ、プレス機におけるスタンパ
からの垢離れを改良し、ディスクと再生釦の間に生じる
動的摩擦係数を低下させて再生針によってディスクが損
傷されることを防ぐため、さらに再生針の摩耗を減少す
るために潤滑剤が使用される。In order to satisfy these quality requirements, many proposals have been made for resin materials as disc materials. ing. However, as the carbon black, one that has good crosstalk with the resin material and has low electrical resistance is used. When a vinyl chloride resin is used as the resin material, a heat stabilizer is used to prevent thermal decomposition of the resin material during kneading, extrusion, and molding. Additionally, lubricants are used to lower the melt viscosity of the resin material and improve moldability. Furthermore, we have lowered the melt viscosity of the resin material, reduced the stickiness in kneading machines and extruders, improved the separation of dirt from the stamper in press machines, and lowered the dynamic coefficient of friction that occurs between the disc and the playback button. A lubricant is used to prevent damage to the disc and to further reduce wear on the regeneration needle.
これらのうち、潤滑剤としては一般に無機材料系と有機
材料系が知られており、無機材料系では炭素黒、二硫化
モリブデンなどがあり、有機材料系では高級脂肪酸、高
級脂肪酸塩、高級脂肪酸エステル、パラフィン系炭化水
素化合物、シリコーン油（たとえばジメチルポリシロキ
サン、シンエニルポリシロキサンなど）が知られている
。Among these lubricants, inorganic materials and organic materials are generally known.Inorganic materials include carbon black and molybdenum disulfide, while organic materials include higher fatty acids, higher fatty acid salts, and higher fatty acid esters. , paraffinic hydrocarbon compounds, and silicone oils (eg, dimethylpolysiloxane, synenylpolysiloxane, etc.) are known.
ディスク材料においてとくに塩化ビニル系材料を用いた
場合、潤滑剤の選択は極めて重要である。The selection of lubricant is extremely important, especially when vinyl chloride-based materials are used as the disc material.
何故ならば、樹脂材料は混練機、押出機、プレス機にお
いて１５０〜１９０℃の高温に保持され、そのために塩
化ビニル系材料は熱分解する条件に曝される。とくに高
級脂肪酸系潤滑剤は高温において塩化ビニル系材料を分
解する副作用が大きい傾向にあり、このだめに高級脂肪
酸の潤滑剤としての効果を期待することができない。一
方、シリコーン油は熱安定性が極めて良好であるが、塩
化ビニル系樹脂との相容性が十分でないためにシリコー
ン油の浮き出しくブリード）によるディスク表面の変質
があり、スタンパ汚れや再生針汚れを発生する。さらに
再生針に対しての動摩擦抵抗低下の効果、再生針摩耗量
を低下させる効果も十分とはいい難い。This is because the resin material is maintained at a high temperature of 150 to 190° C. in a kneader, extruder, or press, and the vinyl chloride material is therefore exposed to conditions that cause it to thermally decompose. In particular, higher fatty acid-based lubricants tend to have a large side effect of decomposing vinyl chloride-based materials at high temperatures, and as a result, higher fatty acids cannot be expected to be effective as lubricants. On the other hand, silicone oil has extremely good thermal stability, but because it is not sufficiently compatible with vinyl chloride resins, the surface of the disc may change due to silicone oil embossment (bleeding), stamper stains, recycled needle stains, etc. occurs. Furthermore, the effect of reducing the dynamic frictional resistance to the regenerated needle and the effect of reducing the amount of wear of the regenerated needle cannot be said to be sufficient.
本発明はこのような従来の欠点を除去した導電性ディス
ク型記録担体を提供するものであり、ディスク材料とし
て、塩化ビニル系樹脂材料中に下記の一般式（１）で示
される側鎖Ｒ２に高級脂肪酸基または高級脂肪酸エステ
ル基を有する高級脂肪酸変性シリコーンを塩化ビニル系
樹脂１００部に対し、ｏ、ｅ〜１．２重量部含有するこ
とを特徴としている。The present invention provides a conductive disk-type record carrier that eliminates such conventional drawbacks, and the disk material includes a vinyl chloride resin material containing a side chain R2 represented by the following general formula (1). It is characterized by containing o, e to 1.2 parts by weight of a higher fatty acid-modified silicone having a higher fatty acid group or a higher fatty acid ester group based on 100 parts of vinyl chloride resin.
式中においてＲはアルキル基を示し、Ｒ２は高級脂肪酸
基（−（ＣＨ２）ｎ−Ｃ０ＯＨ）又は高級脂肪酸エステ
ル基（−（ＣＨ２）ｎ−ＣＯＯＲ’）を示し、ｎは４〜
１７に相当する。Ｘとｙの和はシロキサン結合の重合度
を示すが、２００くｘ＋ｙく６００のものが好ましい。In the formula, R represents an alkyl group, R2 represents a higher fatty acid group (-(CH2)n-C0OH) or a higher fatty acid ester group (-(CH2)n-COOR'), and n is 4 to
It corresponds to 17. The sum of X and y indicates the degree of polymerization of the siloxane bond, and preferably 200 x x + y x 600.
一般式（１）に示される側鎖に高級脂肪酸基を有する高
級脂肪酸変性シリコーンを塩化ビニル系樹脂に配合して
成るディスクが再生針に対して極めて良好な耐久性を有
する理由を考察するに、ジメチルポリシロキサンまたは
ジフェニルシロキサンとして代表されるシリコーン油に
比し、本発明に用いる一般式（１）に示される高級脂肪
酸変性シリコーンは、ｎ ＝ ４〜１７のものであれば
塩化ビニル系樹脂に対して比較的良好な相容性を有し、
かつ、重合度を示す数字であるＸ＋７が２００〜６００
のものであればディスク使用中において適当な表面への
ブリードがあるために潤滑剤としての効果、すなわち初
期特性、耐久特性、環境テスト特性に対する効果が大き
いものと考えられる。Considering the reason why a disc made by blending a vinyl chloride resin with a higher fatty acid-modified silicone having a higher fatty acid group in the side chain represented by the general formula (1) has extremely good durability against a regenerating needle. Compared to silicone oils typified by dimethylpolysiloxane or diphenylsiloxane, the higher fatty acid-modified silicone represented by the general formula (1) used in the present invention has a higher resistance to vinyl chloride resin if n = 4 to 17. has relatively good compatibility,
and X+7, which is a number indicating the degree of polymerization, is 200 to 600
If it is a lubricant, it is considered to be effective as a lubricant, that is, to have a large effect on initial characteristics, durability characteristics, and environmental test characteristics because it bleeds to the surface appropriately during use of the disk.
以下、本発明を実施例によって具体的に説明する。なお
、以下の実施例に述べる部数は全て重量部を示している
。Hereinafter, the present invention will be specifically explained with reference to Examples. In addition, all the parts mentioned in the following examples show parts by weight.
（実施例１）
塩化ビニル−エチレン共重合体にソサンビニルＥ−４３
０；日産化学工業（株）製、エチレン含有量約１重量％
、平均重合度４３Ｑ）と炭素点（Ｃ５ｘ−１６ｏＡ２：
キャボット社製、 ＤＢＰｇＥｔ油量約３２０ ＣＧ／
１ ｏｏｙ 、平均粒径１６〜１８μｍ。(Example 1) Sosanvinyl E-43 in vinyl chloride-ethylene copolymer
0: Manufactured by Nissan Chemical Industries, Ltd., ethylene content approximately 1% by weight
, average degree of polymerization 43Q) and carbon point (C5x-16oA2:
Manufactured by Cabot, DBPgEt oil volume approximately 320 CG/
1 ooy, average particle size 16-18 μm.
見掛比重約０．１３）２０部と、熱安定剤（Ｎ−２００
０に；日東化成工業（株）製、ブチル錫マレートエステ
ル系）３部、滑剤成分としてヘキストワックスｏＰ（ヘ
キスト社製、モンタン酸からの部分ケン化エステルワッ
クス）０．４部とセチルアルコール１．０部からなる組
成物に、高級脂肪酸変性シリコーン（ＳＦ−８４１８；
東しシリコーン（株）製、粘度２５００ａｐｅ 、比重
０．９８．屈折率１．４０６゜一般式（Ｉ）におけるＲ
１＝ＣＨ３’ Ｒ２＝ （ＣＨ２）ｎ−Ｃｏｏ）り
０．７部から成る混合物を高速攪拌機で充分混合した後
、混練機で加熱溶融混練を行ない、次いで押出し、プレ
ス成形することにより試料を作製した。20 parts of apparent specific gravity (approximately 0.13) and a heat stabilizer (N-200
3 parts of butyltin malate ester (manufactured by Nitto Kasei Kogyo Co., Ltd.), 0.4 parts of Hoechst wax OP (manufactured by Hoechst, partially saponified ester wax from montanic acid) as a lubricant component, and 1 part of cetyl alcohol. 0 parts of higher fatty acid-modified silicone (SF-8418;
Manufactured by Toshi Silicone Co., Ltd., viscosity 2500 ape, specific gravity 0.98. Refractive index 1.406° R in general formula (I)
1=CH3' R2= (CH2)n-Coo) After sufficiently mixing a mixture consisting of 0.7 parts with a high-speed stirrer, heat melt kneading with a kneader, then extrusion and press molding to prepare a sample. did.
−（実施例２）
実施例１において、高級脂肪酸変性シリコーン（ＳＦ−
８４１８）の添加量を０部、０，３部、０．６部、０．
９部、１．２部とした他は、実施例１と全く同様にして
試料を作製した。- (Example 2) In Example 1, higher fatty acid modified silicone (SF-
8418) in 0 parts, 0.3 parts, 0.6 parts, 0.
A sample was prepared in exactly the same manner as in Example 1, except that the proportions were 9 parts and 1.2 parts.
（実施例３）
実施例１において、高級脂肪酸変性シリコーンとしてＢ
Ｘ１６８３５Ｂ（東しシリコーン（株）製。(Example 3) In Example 1, B as the higher fatty acid-modified silicone
X16835B (manufactured by Toshi Silicone Co., Ltd.).
粘度４４０ｃｐｓ 、一般式（１）におけるＲ１＝ＣＨ
３゜Ｒ２−−（ＣＨ２）、Ｃ０ＯＲ／）を用い、添加量
を０．７部とした他は、実施例１と全く同様にして試料
を作製した。Viscosity 440 cps, R1=CH in general formula (1)
A sample was prepared in exactly the same manner as in Example 1, except that 3°R2--(CH2), COOR/) was used and the amount added was 0.7 parts.
（比較例１）
実施例１において、高級脂肪酸変性シリコーンの代りに
、ジメチルシリコーン（ＳＨ−２００，東しシリコーン
（株）製、粘度５ｏａｐｓ）を用い、添加量を０．７部
とした他は、実施例１と全く同様にして試料を作製した
。(Comparative Example 1) In Example 1, dimethyl silicone (SH-200, manufactured by Toshi Silicone Co., Ltd., viscosity 5 oaps) was used instead of the higher fatty acid-modified silicone, and the amount added was 0.7 parts. A sample was prepared in exactly the same manner as in Example 1.
以上の実施例および比較例で得られた試料について、加
工性、動的摩擦係数、再生針によるディスク損傷結果を
比較した。それらの結果を次表に示す。The samples obtained in the above Examples and Comparative Examples were compared in terms of workability, dynamic coefficient of friction, and results of disk damage caused by a regenerated needle. The results are shown in the table below.
（以下余 白ン
１゜
上記表において、試料の加工性については、混練物を押
出し圧縮成形した時の押出しトルクや押出し量の安定度
、成形物の反りの有無等で評価した。動的摩擦係数は、
ディスクを１ｒｐｍおよび６００ｒｐｍで回転したとき
の再生針との摩擦係数。(Margin below: 1゜) In the above table, the processability of the sample was evaluated based on the extrusion torque and stability of the extrusion amount when the kneaded material was extruded and compression molded, and the presence or absence of warping of the molded product. Dynamic friction The coefficient is
Coefficient of friction with the playback needle when the disk is rotated at 1 rpm and 600 rpm.
ディスク損傷は再生針によるディスク表面の損傷を顕微
鏡観察により比較し、結果を○、△、×。Disk damage was determined by comparing damage to the disk surface caused by a regeneration needle using a microscope, and the results were graded as ○, △, and ×.
の三段階で評価した。It was evaluated in three stages.
以上の説明、および表より明らかなように、本発明によ
れば、加工性が良好で、動的摩擦係数とくに６００ｒｐ
ｍでの摩擦係数が小さく、従って再生針によるディスク
損傷の小さい導電性ディスク型記録担体が得られるため
、その実用上の価値は多大である。As is clear from the above explanation and the table, according to the present invention, the workability is good, and the dynamic friction coefficient is particularly high at 600 rpm.
Since it is possible to obtain a conductive disk-type record carrier having a small coefficient of friction at m and therefore less damage to the disk by a reproduction stylus, its practical value is great.
Claims (1)
、情報信号と対応するピントが渦巻状あるいは同心円状
に所定の間隔を隔てて形成されると共に、前記熱可塑性
樹脂が、塩化ビニル系樹脂と、一般式 で示される高級脂肪酸変性シリコーンを含み、その成分
構成比が塩化ビニル系樹脂１００重量部に対し、高級脂
肪酸変性ンリコーンが０．６〜１．２重量部であること
を特徴とする導電性ディスク型記録相体。[Scope of Claims] Comprised of at least a thermoplastic resin and conductive particles, the focus points corresponding to the information signals are formed in a spiral or concentric manner at predetermined intervals, and the thermoplastic resin comprises: Contains a vinyl chloride resin and a higher fatty acid-modified silicone represented by the general formula, and the composition ratio of the higher fatty acid-modified silicone is 0.6 to 1.2 parts by weight per 100 parts by weight of the vinyl chloride resin. A conductive disk-type recording medium characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20043181A JPS58102350A (en) | 1981-12-11 | 1981-12-11 | Conductive disc type recording carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20043181A JPS58102350A (en) | 1981-12-11 | 1981-12-11 | Conductive disc type recording carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58102350A true JPS58102350A (en) | 1983-06-17 |
Family
ID=16424179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20043181A Pending JPS58102350A (en) | 1981-12-11 | 1981-12-11 | Conductive disc type recording carrier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58102350A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5065884A (en) * | 1988-12-28 | 1991-11-19 | Nissan Motor Co., Ltd. | Lid opener and container using same |
-
1981
- 1981-12-11 JP JP20043181A patent/JPS58102350A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5065884A (en) * | 1988-12-28 | 1991-11-19 | Nissan Motor Co., Ltd. | Lid opener and container using same |
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