JPH0562417A - Liner for floppy disk - Google Patents

Liner for floppy disk

Info

Publication number
JPH0562417A
JPH0562417A JP22593691A JP22593691A JPH0562417A JP H0562417 A JPH0562417 A JP H0562417A JP 22593691 A JP22593691 A JP 22593691A JP 22593691 A JP22593691 A JP 22593691A JP H0562417 A JPH0562417 A JP H0562417A
Authority
JP
Japan
Prior art keywords
liner
resin
polymer resin
thermocompression bonding
floppy disk
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
Application number
JP22593691A
Other languages
Japanese (ja)
Inventor
Shigeru Takemae
茂 竹前
Yoichi Sakai
陽一 酒井
Tomomi Kawahara
智美 川原
Hisako Toda
久子 戸田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Rayon Co Ltd
Original Assignee
Mitsubishi Rayon Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Priority to JP22593691A priority Critical patent/JPH0562417A/en
Publication of JPH0562417A publication Critical patent/JPH0562417A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To lessen the generation of errors by sticking a high-polymer resin for adhesion gradually at <=5wt.% from the rear surface to the front surface of the non-thermocompression bonded parts of the liner and sticking the high- polymer resin for smoothing gradually at <=2wt.% from the front surface to the rear surface. CONSTITUTION:A web disposed with titanium oxide-contg. rayon fibers in the outside layer and blended fibers composed of 50% rayon fibers and 50% hot meltable polyester composite fiber in the inside layer is formed. A non-woven fabric having the thermocompression bonded parts and the non- thermocompression bonded parts is formed by subjecting this web to thermocompression bonding by using a roll having surface ruggedness and a thermocompression bonding roll consisting of a flat surface. An acrylic polyurethane resin is stuck at 5wt.% by foam coating on the rear surface of this non- woven fabric and is dried. A polysilicone resin is stuck at 2wt.% by foam coating on the surface of the non-woven fabric and is cured after predrying. The liner which maintains cleanability without impairment, lessens the generation of lint and has excellent durability is obtd. in this way.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、フロッピーディスク用
ライナーの改良に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved liner for floppy disks.

【0002】[0002]

【従来の技術】コンピュータの外部記録媒体として用い
るフロッピーディスクは一般に塩化ビニル系樹脂やAB
S系樹脂で成型されたジャケットからなるケースに収納
されており、その内面には繊維からなるライナーが付設
されている。フロッピーディスク用ライナーとして要求
される性能はディスクの保護性、ディスクのクリーニン
グ性が重要であり、従来より各種ライナーが提案されて
いる。
Floppy disks used as external recording media for computers are generally made of vinyl chloride resin or AB.
It is housed in a case consisting of a jacket molded from S-based resin, and a fiber liner is attached to the inner surface of the case. Regarding the performance required as a liner for a floppy disk, the disk protection property and the disk cleaning property are important, and various liners have been conventionally proposed.

【0003】例えば特開昭58−7705号公報にはポ
リエステル繊維からなる不織布製ライナーが開示され、
特開昭54−49115号公報にはポリプロピレン繊維
からなる不織布製ライナーが開示され、実開昭57−7
1280号公報には再生繊維素繊維からなる不織布製ラ
イナーが開示され、更に特開昭64−70985号公報
には高分子樹脂が付着してなる不織布製ライナーが開示
されており、これらはライナーの形態を安定化させるた
めに繊維同志を融着させたり、接着剤で繊維間を接着固
定する等の方法が用いられている。
For example, Japanese Unexamined Patent Publication (Kokai) No. 58-7705 discloses a non-woven liner made of polyester fiber.
Japanese Unexamined Patent Publication (Kokai) No. 54-49115 discloses a non-woven liner made of polypropylene fiber.
Japanese Unexamined Patent Publication No. 1280 discloses a non-woven liner made of recycled fiber, and Japanese Unexamined Patent Publication No. 64-70985 discloses a non-woven liner having a polymer resin attached thereto. In order to stabilize the morphology, methods such as fusing fibers together or adhering and fixing the fibers with an adhesive are used.

【0004】[0004]

【発明が解決しようとする課題】しかしながら公知技術
による一般的な不織布をフロッピーディスク用ライナー
として使用すると接着剤、繊維等の脱落による繊維屑
(リント)が生成し、フロッピーディスク表面に付着ま
たは損傷し、ディスク再生不良の原因となる。特に顕著
な例として3.5インチフロッピーディスクジャケット
にライナーを付設する際の超音波溶着やジャケットをシ
ールする際の超音波溶着でライナー上に付着するリン
ト、塵等がディスク上に落下し、再生出力の低下を引き
起こす問題がある。
However, when a general non-woven fabric according to a known technique is used as a liner for a floppy disk, fiber waste (lint) is generated due to the dropping of adhesives, fibers, etc., and adheres or is damaged on the floppy disk surface. It may cause a disc playback failure. As a particularly prominent example, lint, dust, etc. adhering to the liner due to ultrasonic welding when attaching the liner to the 3.5 inch floppy disk jacket and ultrasonic welding when sealing the jacket fall onto the disk and reproduce. There is a problem that causes a drop in output.

【0005】また接着剤で繊維間を接着固定する方法に
よるフロッピーディスク用ライナーはリントの発生は少
なくなるものの硬くてクリーニング効果が充分でなく、
また、接着剤とフロッピーディスク間で摩擦・摩耗が生
じ、接着剤がフロッピーディスクに転移することでディ
スク再生不良の原因となる。特に顕著な例として非熱可
塑性繊維、例えばレーヨン製のライナーではディスクと
の親和性がなくディスクへの付着は起こらないが、ディ
スクが回転しライナーと接して摩擦・摩耗がおき、界面
においてレーヨンの破断が生ずる場合もあり、一時的な
エラーの発生の原因となりフロッピーディスク用ライナ
ーとして問題がある。特に最近ではフロッピーディスク
はマイクロ化、高密度化、高速回転化の方向に大きく転
換しており、これに対応できる高性能のフロッピーディ
スク用ライナーの開発が強く望まれている。
A liner for a floppy disk produced by a method of adhering and fixing fibers with an adhesive is less hard to produce lint but is not sufficient in cleaning effect.
In addition, friction and wear occur between the adhesive and the floppy disk, and the adhesive transfers to the floppy disk, which causes disk reproduction failure. A particularly notable example is a non-thermoplastic fiber such as a rayon liner, which has no affinity for the disk and does not adhere to the disk, but the disk rotates and comes into contact with the liner to cause friction and wear. It may break, which causes a temporary error and is a problem as a liner for a floppy disk. In particular, recently, the floppy disk has been largely changed to the direction of miniaturization, high density, and high speed rotation, and development of a high-performance floppy disk liner capable of coping with this has been strongly desired.

【0006】本発明は、かかる現状に鑑がみ、クリーニ
ング性が損なわれず、リントの発生及び樹脂のフロッピ
ーディスクへの転移等が生じないフロッピーディスク用
ライナーを提供するものである。
In view of the above situation, the present invention provides a liner for a floppy disk which does not impair the cleaning property and does not cause lint or transfer of resin to the floppy disk.

【0007】[0007]

【課題を解決するための手段】本発明は、熱可塑性繊維
を含み、熱圧着部と非熱圧着部とが存在し、熱圧着部に
より形態が保持された不織布からなるフロッピーディス
ク用ライナーにおいて、ライナーの非熱圧着部の裏面
(ジャケットに接する面)から表面(ディスクに接する
面)に向って構成繊維間接着用の高分子樹脂Aが漸減的
に5重量%以下付着していると共に、ライナーの非熱圧
着部の表面から裏面に向って平滑性を有する高分子樹脂
Bが漸減的に2重量%以下付着していることを特徴とす
るフロッピーディスク用ライナーを要旨とするものであ
る。
DISCLOSURE OF THE INVENTION The present invention provides a liner for a floppy disk, which comprises a thermoplastic fiber, has a thermocompression bonding portion and a non-thermocompression bonding portion, and is made of a nonwoven fabric whose shape is retained by the thermocompression bonding portion, 5% by weight or less of the polymer resin A, which is indirectly attached to the constituent fibers, gradually adheres from the back surface (surface contacting the jacket) to the surface (surface contacting the disk) of the non-thermocompression-bonded portion of the liner. A gist of a liner for a floppy disk is characterized in that a polymer resin B having a smoothness gradually decreases from the front surface to the back surface of a non-thermocompression bonding portion by 2% by weight or less.

【0008】以下図面に従って本発明を詳細に説明す
る。図1は、多数の熱圧着部を有するライナー断面の部
分拡大図で、同図において、1はライナーの表面(ディ
スクに接する面)、2は裏面(ジャケットに接する
面)、3は非熱圧着部、4は熱圧着部であり、図2は図
1に示したライナーの非熱圧着部3をX−X′線で切断
し、ライナー表面1と裏面2との交点をa,bとした場
合のライナー断面における高分子樹脂A,Bの付着繊維
の分布例を示した説明図である。
The present invention will be described in detail below with reference to the drawings. FIG. 1 is a partially enlarged view of a cross section of a liner having a large number of thermocompression bonding parts. In FIG. 1, 1 is the surface of the liner (the surface that contacts the disk), 2 is the back surface (the surface that contacts the jacket), and 3 is the non-thermocompression bonding. 2 is a thermocompression bonding portion. In FIG. 2, the non-thermocompression bonding portion 3 of the liner shown in FIG. 1 is cut along the line XX ', and the intersections of the liner front surface 1 and the back surface 2 are defined as a and b. It is explanatory drawing which showed the distribution example of the attachment fiber of polymeric resin A, B in a liner cross section in a case.

【0009】本発明のライナーは図1に示す多数の熱圧
着部4を有するライナーの非熱圧着部3の断面における
繊維間接着用高分子樹脂A付着繊維及び平滑性高分子樹
脂B付着繊維の分布が図2に示すように裏面において
は、高分子樹脂A付着繊維が多く分布し、表面において
は高分子樹脂B付着繊維が多く分布している。従来のラ
イナーは、部分熱圧着部を多数設けても、非熱圧着部を
構成する繊維相互に拘束がなく、カット時等の繊維屑
(リント)等の発生し易い構造である。又、一方で全体
に樹脂加工をしたケミカルボンドタイプの従来のライナ
ーにおいては、長時間使用するとディスクとライナーの
接触する界面において摩擦・摩耗が生じ、付着樹脂成分
がディスクに付着したり損傷を与える場合があるが、本
発明のライナーは非熱圧着部においてジャケットと接す
る側で、高分子樹脂Aにより構成繊維同志を点又は線状
に接着し、ディスクと接する側では構成繊維表面を平滑
性樹脂で被覆することで、エラーの原因となるリントの
減少および樹脂のディスクへの付着やディスク損傷を防
ぐことができる。本発明のライナーにおける高分子樹脂
A付着繊維の分布状態を図2で説明すると、同図の縦軸
のa,bは、各々図1に於ける非熱圧着部のX−X′線
との表面1及び裏面2との交点を示す。高分子樹脂A付
着繊維の分布率の最大値となる位置はライナーのb、す
なわち裏面である。非熱圧着部の構成繊維間の接着を高
めるには、高分子樹脂Aがライナー表面の繊維にも付着
しているのが好ましいが、ディスクへの影響の点からラ
イナーの中央部以下の裏面側の繊維にのみ付着している
のが望ましい。図2の分布5はライナーの裏面から布厚
の30%から50%の範囲に高分子樹脂Aの付着した繊
維が表面方向に漸減的に分布している例である。高分子
樹脂Aとしては、アクリル系又はポリエステル系の熱硬
化性樹脂が好適に用いられ、その付着量は5重量%以
下、好ましくは1〜5重量%で、5重量%を越えるとラ
イナーが硬くなってクリーニング性能が低下するという
問題が生じる。
The liner of the present invention has a distribution of the polymer resin A-adhering fibers and the smooth polymer resin B-adhering fibers indirectly attached to the fibers in the cross section of the non-thermocompression bonding portion 3 of the liner having a large number of thermocompression bonding portions 4 shown in FIG. As shown in FIG. 2, a large amount of polymer resin A-attached fibers are distributed on the back surface, and a large amount of polymer resin B-attached fibers are distributed on the front surface. The conventional liner has a structure in which even if a large number of partial thermocompression bonding portions are provided, the fibers forming the non-thermocompression bonding portions are not constrained to each other, and fiber waste (lint) or the like is likely to occur during cutting. On the other hand, in a conventional chemical bond type liner that is entirely resin-processed, when used for a long time, friction and wear occur at the interface where the disc and the liner come into contact, and the adhered resin component adheres to the disc or damages it. However, in the liner of the present invention, the constituent fibers are adhered to each other by the polymer resin A in a point or line shape on the side in contact with the jacket in the non-thermocompression bonding portion, and the surface of the constituent fibers on the side in contact with the disk is a smooth resin. By coating with, it is possible to reduce the lint that causes an error and prevent the resin from adhering to the disc or damaging the disc. The distribution state of the polymer resin A-adhered fibers in the liner of the present invention will be described with reference to FIG. 2. The vertical axes a and b in FIG. The intersection of the front surface 1 and the back surface 2 is shown. The position where the distribution ratio of the polymer resin A-attached fiber becomes maximum is b, that is, the back surface of the liner. In order to enhance the adhesion between the constituent fibers of the non-thermocompression-bonded portion, it is preferable that the polymer resin A also adheres to the fibers on the surface of the liner. It is desirable that they are attached only to the fibers. Distribution 5 in FIG. 2 is an example in which the fibers to which the polymer resin A adheres are gradually distributed in the surface direction from the back surface of the liner to the range of 30% to 50% of the cloth thickness. As the polymer resin A, an acrylic or polyester thermosetting resin is preferably used, and its adhesion amount is 5% by weight or less, preferably 1 to 5% by weight, and when it exceeds 5% by weight, the liner becomes hard. Therefore, there arises a problem that the cleaning performance is deteriorated.

【0010】他方高分子樹脂B付着繊維の分布率の最大
値となる位置はライナーのa、すなわち表面であり、こ
れによってディスクとの平滑化を図り、摩擦、摩耗によ
るリントの発生や樹脂のディスクへの転移を防止するの
である。高分子樹脂Bとしては高分子量のポリシリコン
樹脂又はポリフッ化樹脂が好適に用いられ、その付着量
は2重量%以下、好ましくは0.5〜2重量%である。
図2の分布6は、ライナーの表面から布厚の20%から
50%の範囲に高分子樹脂Bの付着した繊維が裏面方向
に漸減的に分布している例である。
On the other hand, the position where the distribution ratio of the polymer resin B-adhered fiber becomes the maximum is the liner a, that is, the surface, which is used for smoothing with the disc, and lint generation due to friction and wear and the disc of the resin are produced. To prevent the transition to. As the polymer resin B, a high molecular weight polysilicon resin or a polyfluorinated resin is preferably used, and the adhesion amount thereof is 2% by weight or less, preferably 0.5 to 2% by weight.
The distribution 6 in FIG. 2 is an example in which the fibers to which the polymer resin B is attached are gradually distributed from the front surface of the liner to the back surface in the range of 20% to 50% of the cloth thickness.

【0011】本発明のライナーは、熱可塑性繊維を含む
ウェブを加熱エンボス加工して部分的に熱圧着した不織
布の裏面に、泡状塗工により高分子樹脂Aを付着させて
乾燥、硬化させ、次いで不織布の表面に同様にして高分
子樹脂Bを付着、乾燥、硬化させることにより得ること
ができ、この場合、高分子樹脂の粘度及び塗布量を調整
することにより各高分子樹脂の付着分布を適宜制御する
ことができる。
In the liner of the present invention, the polymer resin A is adhered to the back surface of the non-woven fabric obtained by heat embossing a web containing thermoplastic fibers and partially thermocompression-bonding it, followed by drying and curing, Then, the polymer resin B can be obtained by similarly attaching, drying and curing the polymer resin B on the surface of the non-woven fabric. In this case, by adjusting the viscosity and the coating amount of the polymer resin, the attachment distribution of each polymer resin can be obtained. It can be controlled appropriately.

【0012】[0012]

【実施例】以下本発明を実施例により更に具体的に説明
するが、実施例中の各種評価、テストは次の方法によ
る。 (イ)リントの量の測定 90cm2 の大きさに切断したライナーに水中で1分間
超音波振動を与え、水中に分散した繊維屑をフィルター
で濾過し、その量の多少を目視で判断する。 (ロ)高分子樹脂のディスクへの転移テスト 市販のフロッピーディスク上にライナーを載置して21
g/cm2 の荷重を加え、70℃,90%RHの環境下
に20時間放置し、次いで標準状態下で5時間コンディ
ショニング後の樹脂のディスクへの転移の有無を判定す
る。
EXAMPLES The present invention will be described in more detail with reference to the following examples. Various evaluations and tests in the examples will be carried out by the following methods. (A) Measurement of amount of lint The liner cut into a size of 90 cm 2 is subjected to ultrasonic vibration in water for 1 minute, the fiber waste dispersed in water is filtered by a filter, and the amount of the amount is visually judged. (B) Transfer test of polymer resin to disk 21 Place the liner on a commercially available floppy disk and
A load of g / cm 2 is applied, the mixture is allowed to stand in an environment of 70 ° C. and 90% RH for 20 hours, and then the presence or absence of transfer of resin to a disk after conditioning for 5 hours under standard conditions is determined.

【0013】(ハ)イールドテスト フロッピーディスクライナーを付設したシェルにディス
クを組み込んで各100ピース用意し、東京エンジニア
リング社製のドロップ−IN−OUTカウンターを用い
て一定回数繰り返し測定する。 (ニ)耐久性テスト 再生出力が一定以上のフロッピーディスクを組み込んだ
シェルを1000万pass回転させた後の再生出力を
測定して耐久性を評価する。
(C) Yield test A disk is incorporated into a shell provided with a floppy disk liner to prepare 100 pieces of each, and the measurements are repeated a certain number of times using a Drop-IN-OUT counter manufactured by Tokyo Engineering Co., Ltd. (D) Durability test The durability is evaluated by measuring the reproduction output after rotating a shell incorporating a floppy disk having a reproduction output above a certain level for 10 million passes.

【0014】〔実施例1〕外層に酸化チタン含有レーヨ
ン繊維(1.5デニール,51mm)を配し、内層に該
レーヨン繊維50%と熱融着性ポリエステル複合繊維
(2.0デニール,51mm:芯成分融点265℃、鞘
成分融点200℃:芯成分/鞘成分=1/1)50%と
の混合繊維を配したウェブを、表面凹凸を有するロール
と表面フラットなロールとからなる熱圧着ロールを用い
て、ロール温度220℃で熱圧着を行なうことにより、
熱圧着部と非熱圧着部を有する目付40g/m2 の不織
布を形成した。
Example 1 Titanium oxide-containing rayon fiber (1.5 denier, 51 mm) was placed in the outer layer, and 50% of the rayon fiber and heat-fusible polyester composite fiber (2.0 denier, 51 mm) were placed in the inner layer. A thermocompression-bonding roll comprising a roll having a surface irregularity and a roll having a flat surface on a web in which a mixed fiber of core component melting point 265 ° C., sheath component melting point 200 ° C .: core component / sheath component = 1/1) 50% is arranged. By performing thermocompression bonding at a roll temperature of 220 ° C. using
A nonwoven fabric having a basis weight of 40 g / m 2 having a thermocompression bonding portion and a non-thermocompression bonding portion was formed.

【0015】この不織布の裏面(熱圧着時にフラットロ
ールと接した面)にアクリル系ポリウレタン樹脂(高分
子樹脂A)を泡塗工により5重量%付着させて100℃
で1分間予備乾燥し、次いで不織布の表面(熱圧着時に
表面凹凸を有するロールと接した面)にポリシリコン樹
脂(高分子樹脂B)を泡塗工により2重量%付着させ、
100℃で1分間予備乾燥後160℃で1分間硬化処理
してライナーAを得た。
Acrylic polyurethane resin (polymer resin A) was applied on the back surface (the surface contacting the flat roll during thermocompression bonding) of 5% by weight by foam coating to 100 ° C.
By pre-drying for 1 minute in the following manner, and then 2% by weight of a poly-silicon resin (polymer resin B) is applied to the surface of the non-woven fabric (the surface in contact with the roll having surface irregularities during thermocompression bonding) by foam coating,
Preliminary drying was performed at 100 ° C. for 1 minute and then curing treatment was performed at 160 ° C. for 1 minute to obtain a liner A.

【0016】得られたライナーAを染色して顕微鏡で観
察したところ、非熱圧着部の裏面から表面に向って布厚
の50%の範囲内でアクリル系ポリウレタン樹脂が漸減
的に付着しており、且つ表面から裏面に向って布厚の4
0%の範囲内でポリシリコン樹脂が漸減的に付着してい
るのが確認された。このライナーAの各種評価を表1に
示した。
When the liner A thus obtained was dyed and observed under a microscope, it was found that the acrylic polyurethane resin was gradually attached within the range of 50% of the cloth thickness from the back surface to the surface of the non-thermocompression bonded portion. , And the cloth thickness is 4 from the front to the back.
It was confirmed that the polysilicon resin was gradually attached within the range of 0%. Various evaluations of this liner A are shown in Table 1.

【0017】〔比較例1〕実施例で用いたのと同様の熱
圧着不織布全体にアクリル系ポリウレタン樹脂を含浸さ
せ、乾燥、硬化処理して樹脂付着量6重量%のライナー
Bを得た。このライナーBの各種評価も表1に示した。 〔比較例2〕実施例で用いたのと同様の熱圧着不織布
(樹脂付着なし)をライナーCとして、その各種評価も
表1に示した。
Comparative Example 1 The same thermocompression-bonded nonwoven fabric used in the examples was impregnated with an acrylic polyurethane resin, dried and cured to obtain a liner B having a resin adhesion amount of 6% by weight. Various evaluations of this liner B are also shown in Table 1. [Comparative Example 2] The same thermocompression-bonded nonwoven fabric (without resin adhesion) used in the examples was used as the liner C, and various evaluations thereof are also shown in Table 1.

【0018】[0018]

【表1】 [Table 1]

【0019】[0019]

【発明の効果】上述の如く構成された本発明のライナー
は、クリーニング性が損なわれずにエラー発生の原因と
なるリントの発生が少く、樹脂のディスクへの転移もな
く、更にイールド及び耐久性も優れている等の多大の効
果を奏するものである。
The liner of the present invention constructed as described above does not impair the cleaning property, generates less lint that causes an error, does not transfer the resin to the disk, and has a good yield and durability. It has a great effect such as being excellent.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明に係るフロッピーディスク用ライナーの
断面図である。
FIG. 1 is a cross-sectional view of a floppy disk liner according to the present invention.

【図2】図1のフロッピーディスク用ライナーの非熱圧
着部における高分子樹脂A及びBの付着繊維の分布例を
示す説明図である。
FIG. 2 is an explanatory view showing an example of distribution of fibers to which polymer resins A and B are attached in a non-thermocompression-bonded portion of the floppy disk liner of FIG.

【符号の説明】[Explanation of symbols]

1 ライナーの表面(フロッピーディスクに接する
面) 2 ライナーの裏面(ジャケットに接する面) 3 非熱圧着部 4 熱圧着部 5 高分子樹脂A付着繊維の分布曲線 6 高分子樹脂B付着繊維の分布曲線
1 surface of liner (surface in contact with floppy disk) 2 back surface of liner (surface in contact with jacket) 3 non-thermocompression bonding part 4 thermocompression bonding part 5 distribution curve of polymer resin A adhered fiber 6 distribution curve of polymer resin B adhered fiber

フロントページの続き (72)発明者 戸田 久子 愛知県名古屋市東区砂田橋四丁目1番60号 三菱レイヨン株式会社商品開発研究所内Front Page Continuation (72) Inventor Hisako Toda 4-60 Sunadabashi, Higashi-ku, Nagoya, Aichi Prefecture Mitsubishi Rayon Co., Ltd. Product Development Laboratory

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 熱可塑性繊維を含み、熱圧着部と非熱圧
着部とが存在し、熱圧着部により形態が保持された不織
布からなるフロッピーディスク用ライナーにおいて、ラ
イナーの非熱圧着部の裏面から表面に向って構成繊維間
接着用の高分子樹脂Aが漸減的に5重量%以下付着して
いると共に、ライナーの非熱圧着部の表面から裏面に向
って平滑性を有する高分子樹脂Bが漸減的に2重量%以
下付着していることを特徴とするフロッピーディスク用
ライナー。
1. A floppy disk liner made of a non-woven fabric containing thermoplastic fibers, having a thermocompression bonding portion and a non-thermocompression bonding portion, the shape of which is retained by the thermocompression bonding portion, the back surface of the non-thermocompression bonding portion of the liner. 5% by weight or less of the polymer resin A, which is indirectly attached to the constituent fibers, gradually adheres to the front surface of the liner, and the polymer resin B having smoothness from the front surface to the back surface of the non-thermocompression-bonded portion of the liner is A liner for a floppy disk, which is characterized by gradually adhering 2% by weight or less.
【請求項2】 高分子樹脂Aがアクリル系又はポリエス
テル系の熱硬化性樹脂で、その付着量が1〜5重量%で
あり、高分子樹脂Bがポリシリコン樹脂又はポリフッ化
樹脂でその付着量が0.5〜2重量%である請求項1記
載のフロッピーディスク用ライナー。
2. The polymer resin A is an acrylic or polyester thermosetting resin, and its adhesion amount is 1 to 5% by weight, and the polymer resin B is a polysilicon resin or a polyfluorinated resin, and its adhesion amount. Is 0.5 to 2% by weight, and the floppy disk liner according to claim 1.
JP22593691A 1991-09-05 1991-09-05 Liner for floppy disk Pending JPH0562417A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22593691A JPH0562417A (en) 1991-09-05 1991-09-05 Liner for floppy disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22593691A JPH0562417A (en) 1991-09-05 1991-09-05 Liner for floppy disk

Publications (1)

Publication Number Publication Date
JPH0562417A true JPH0562417A (en) 1993-03-12

Family

ID=16837221

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22593691A Pending JPH0562417A (en) 1991-09-05 1991-09-05 Liner for floppy disk

Country Status (1)

Country Link
JP (1) JPH0562417A (en)

Similar Documents

Publication Publication Date Title
AU657169B2 (en) Nonwoven fabric
US4586606A (en) Nonwoven fabric
CA2080419A1 (en) Hydroentangled fabric diskette liner
CA2021511A1 (en) Hybrid nonwoven diskette liner
JPH03132984A (en) Liner for floppy disk jacket
JPH0562417A (en) Liner for floppy disk
CA1074444A (en) Cleaning sheet and cleaning jacket for cleaning a magnetic head for flexible discs and method for cleaning a magnetic head
JPH0562416A (en) Liner for floppy disk
EP0495235B1 (en) Liner for floppy disk jacket
JP3035321B2 (en) Liner for floppy disk jacket
JPS60219685A (en) Liner for floppy disc
KR930000753Y1 (en) Magnetic disk cartridge
JPH048537Y2 (en)
JPH05266627A (en) Liner for floppy disc
JPH0785627A (en) Liner for floppy disk
JPS60145581A (en) Unwoven cloth for floppy disk liner
JPH0955056A (en) Non-woven fabric for floppy disk liner and its production
GB2181881A (en) Protective jacket for a disk-shaped recording medium
JPH0464982A (en) Liner for floppy disk jacket
JPH0721726A (en) Liner for disk cartridge
JPS60179974A (en) Jacket of flexible disk for vertical magnetic recording
JPH05159512A (en) Liner for floppy disc jacket
JPH0711907B2 (en) Disco Cartridge
JPH048536Y2 (en)
JPH09198837A (en) Nonwoven fabric for floppy disk jacket liner