JPH0562420A - Flotpie disk liner - Google Patents
Flotpie disk linerInfo
- Publication number
- JPH0562420A JPH0562420A JP21951591A JP21951591A JPH0562420A JP H0562420 A JPH0562420 A JP H0562420A JP 21951591 A JP21951591 A JP 21951591A JP 21951591 A JP21951591 A JP 21951591A JP H0562420 A JPH0562420 A JP H0562420A
- Authority
- JP
- Japan
- Prior art keywords
- liner
- resin
- thermocompression
- floppy disk
- thermocompression bonding
- 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
- 239000000835 fiber Substances 0.000 claims abstract description 33
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 22
- 239000002952 polymeric resin Substances 0.000 claims abstract description 16
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 16
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 5
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000009499 grossing Methods 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 6
- 229920005989 resin Polymers 0.000 description 21
- 239000011347 resin Substances 0.000 description 21
- 238000009826 distribution Methods 0.000 description 10
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 4
- 229920005591 polysilicon Polymers 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 229920000297 Rayon Polymers 0.000 description 3
- 239000000306 component Substances 0.000 description 3
- 239000002964 rayon Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Abstract
(57)【要約】
【目的】 クリーニング性を損なわずに、エラー発生の
原因となるリントの発生を防止する。
【構成】 熱可塑性繊維を含み、熱圧着部と非熱圧着部
とが存在し、熱圧着部によって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、高分
子樹脂を非熱圧着部の裏面（ジャケットと接する面）及
び内部に付着し、表面（フロッピーディスクに接する
面）には実質的に付着させない。
(57) [Summary] [Purpose] To prevent the occurrence of lint that causes an error without impairing the cleaning property. In 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 maintained by the thermocompression bonding portion, and a polymer resin is applied to the back surface of the non-thermocompression bonding portion. (The surface in contact with the jacket) and the inside are adhered, and the surface (the surface in contact with the floppy disk) is not substantially adhered.
Description
【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、ジャケットの内面には不織布からなるライ
ナーが付設されている。Floppy disks used as external recording media for computers are generally made of vinyl chloride resin or AB.
It is housed in a case made of a jacket molded of S-based resin, and a liner made of non-woven fabric is attached to the inner surface of the jacket.
【０００３】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。Regarding the performance required as a liner for a floppy disk, the protection of the disk and the cleaning property of the disk are important, and various liners have been conventionally proposed.
【０００４】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、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、実開昭５７−７１２８０号公報には再
生繊維素繊維からなる不織布製ライナー、そして特開昭
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各々開示されており、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.
No. 49115 discloses a non-woven liner made of polypropylene fibers, No. 57-71280 discloses a non-woven liner made of recycled fibrous fibers, and Japanese Unexamined Patent Publication No. 64-70985 discloses a polymer resin. Each of these non-woven liners is disclosed, and in order to stabilize the form of the liner, a method of fusing fibers together, or a method of adhering and fixing the fibers with an adhesive is used.
【０００５】[0005]
【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表面を損傷し、ディ
スク再生不良の原因となる。However, when a general non-woven fabric according to the known technique is used as a liner, fiber waste (lint) is generated due to the dropping of adhesives, fibers, etc., and adheres to or damages the floppy disk surface. It may cause disc playback failure.
【０００６】特に顕著な例として３．５''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。As a particularly prominent example, lint, dust, etc., which adhere to the liner due to ultrasonic welding when a liner is attached to a 3.5 '' floppy disk jacket or ultrasonic welding when sealing the jacket, are deposited on the disk. There is a problem that it falls and causes a reduction in reproduction output.
【０００７】また接着剤で繊維間を接着固定する方法に
よるライナーはリントの発生は少なくなるもののライナ
ーが硬くなり、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、例えばレーヨンからなる不織布製ライナーではディ
スクとの親和性は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、摩耗摩擦により
ライナー表面の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ラ
イナーの開発が強く望まれている。Further, the liner formed by the method of adhesively fixing the fibers with an adhesive has less lint, but the liner becomes hard and the cleaning effect is not sufficient.
Friction and wear occur between the adhesive and the floppy disk, and transfer of the adhesive to the floppy disk causes defective reproduction of the disk. As a particularly prominent example, a non-thermoplastic fiber, for example, a non-woven liner made of rayon does not have affinity for the disc and does not adhere to the disc, but the disc rotates and comes into contact with the liner. Breakage may occur, causing a temporary error. In particular, recently, the floppy disk has been largely changed to the trend toward miniaturization, high density and high speed rotation, and development of a high performance liner capable of coping with this has been strongly desired.
【０００８】本発明はかかる現状に鑑み、クリーニング
性を損なうことなくエラー発生の原因となるリントの発
生のほとんど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 present situation, the present invention provides a liner for a floppy disk that does not impair the cleaning property and causes almost no lint that causes an error.
【０００９】[0009]
【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
よって形態が保持された不織布からなり、かつ高分子樹
脂が非熱圧着部の裏面（ジャケットに接する面）及び内
部に付着し、表面（フロッピーディスクに接する面）に
は実質的に付着していない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。The present invention comprises a non-woven fabric containing a thermoplastic fiber, having a thermocompression bonding portion and a non-thermocompression bonding portion, the shape of which is retained by the thermocompression bonding portion, and a polymer resin A gist of a liner for a floppy disk, which is characterized in that it adheres to the back surface (surface contacting the jacket) and the inside of the non-thermocompression-bonded portion and is not substantially adhered to the surface (surface contacting the floppy disk). is there.
【００１０】以下本発明を図面に従って詳細に説明す
る。The present invention will be described in detail below with reference to the drawings.
【００１１】図１は、多数の部分熱圧着部を有するライ
ナー断面の部分拡大図を示したものであり、１はディス
クに接する側（表面）、２はジャケットに接する側（裏
面）、３は非熱圧着部、４は熱圧着部を示す。FIG. 1 is a partially enlarged view of a cross section of a liner having a large number of partial thermocompression bonding parts, where 1 is the side in contact with the disk (front surface), 2 is the side in contact with the jacket (back surface), and 3 is Non-thermocompression bonding parts, 4 are thermocompression bonding parts.
【００１２】図２は図１に示したライナーの非熱圧着部
３をＸ−Ｘ′線で切断した状態のライナー表面と裏面と
の交点をａ，ｂとした際のライナー断面における高分子
樹脂付着繊維の分布例を示したものである。FIG. 2 is a polymer resin in the cross section of the liner shown in FIG. 1 when the non-thermocompressed portion 3 of the liner shown in FIG. It shows an example of distribution of adhered fibers.
【００１３】図３は、非熱圧着部に於いて構成繊維９が
高分子樹脂により点８又は線７状に接着されている状態
を示す部分拡大である。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
断面における高分子樹脂付着繊維の分布が図２に示す様
にジャケットと接する側より、ディスクと接する側に向
って漸減状態になっており、図３に示す如く、付着高分
子樹脂によって点又は線状に樹脂接着している箇所が多
数存在している。従来のライナーは、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於いては、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。これに対して本発明の如く、非熱
圧着部に於いて、高分子樹脂により、点又は線状に樹脂
接着している箇所が多数存在しているライナー構造とす
ることにより、エラーの原因となるリントの減少及びデ
ィスクへの付着、損傷の防止が可能となる。FIG. 3 is a partially enlarged view showing a state in which the constituent fibers 9 are bonded to each other in the shape of points 8 or lines 7 by the polymer resin in the non-thermocompression-bonded portion. In the liner of the present invention, the distribution of the polymer resin-adhered fibers in the cross section of the non-thermocompression bonding part 3 of the liner having the many thermocompression bonding parts 4 shown in FIG. It is gradually reduced toward the contact side, and as shown in FIG. 3, there are many points where the adhered polymer resin is resin-bonded in a dot or linear manner. The conventional liner has a structure in which, even if a large number of thermocompression-bonded portions are provided, the fibers forming the non-thermocompression-bonded portions are not bound 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, if it is used for a long time,
At the interface where the disc and the liner come into contact, friction and wear may occur, and the adhered resin component may adhere to the disc or damage it. On the other hand, as in the present invention, in the non-thermocompression bonding portion, by using a liner structure in which there are many points or linearly resin-bonded portions by the polymer resin, the cause of the error It is possible to reduce the amount of lint and prevent adhesion and damage to the disc.
【００１４】本発明に係るライナーにおける高分子樹脂
付着繊維の分布状態を図２で更に詳しく説明すると、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との交点を示し、同図の
様に高分子樹脂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。繊維間の接着を高め
るには、この分布が表面にも存在することが好ましい
が、ディスクとの影響の点からライナー中央部、もしく
は裏面に近い部分に分布することが好ましい。分布５は
ライナーの裏面から表面までの厚さの３０％以下の裏面
側に高分子樹脂が付着分布している例であり、又分布６
は５０％以下の裏面側に付着分布している例を示してい
る。The distribution state of the polymer resin-adhered fibers in the liner according to the present invention will be described in more detail with reference to FIG. 2. The vertical axes a and b in FIG. 2 are X of the non-thermocompression bonding portion in FIG.
The intersections of the -X 'line with the front surface 1 and the back surface 2 are shown, and the position where the distribution ratio of the polymer resin-adhered fiber becomes the maximum value is b, that is, the back surface, of the liner as shown in FIG. In order to enhance the adhesion between the fibers, it is preferable that this distribution also exists on the surface, but it is preferable that the distribution be distributed in the central part of the liner or in the part close to the back surface from the viewpoint of influence on the disc. Distribution 5 is an example in which the polymer resin is attached and distributed on the back surface side, which is 30% or less of the thickness from the back surface to the front surface of the liner, and distribution 6
Indicates an example in which the adhesion distribution is 50% or less on the back surface side.
【００１５】付着量は好ましくは５重量％以下、更に好
ましくは、１〜５重量％の範囲である。５重量％を超え
る場合は、得られるライナーが硬くなり、クリーニング
性が劣るなどフロッピーディスク用ライナーとして好ま
しくない。高分子樹脂としては水溶性又は水分散性の樹
脂が好適に使用され、又、平滑剤を高分子樹脂に含有す
ることは、非熱圧着部のＸ−Ｘ′の中央部及び裏面に分
布する高分子樹脂付着繊維がディスクと接する面に出現
した場合でも、付着、損傷などの影響が少ないので、好
ましい。ここで、平滑剤としては、界面活性作用のあ
る、一般繊維油剤等があるが、ディスクへのブリードを
考慮すると高分子量のポリシリコン樹脂又はポリフッ化
樹脂が好ましく、付着量は２重量％以下、好ましくは
０．５〜２重量％である。The adhesion amount is preferably 5% by weight or less, more preferably 1 to 5% by weight. If it exceeds 5% by weight, the resulting liner becomes hard and is inferior in cleaning property, which is not preferable as a liner for a floppy disk. A water-soluble or water-dispersible resin is preferably used as the polymer resin, and the inclusion of a leveling agent in the polymer resin is distributed in the central portion and the back surface of XX 'of the non-thermocompression-bonded portion. Even when the polymer resin-adhered fiber appears on the surface in contact with the disc, the influence of adhesion and damage is small, which is preferable. Here, as the smoothing agent, there are general fiber oil agents having a surface active action, etc., but considering the bleeding to the disk, a high molecular weight polysilicon resin or polyfluorinated resin is preferable, and the adhesion amount is 2% by weight or less, It is preferably 0.5 to 2% by weight.
【００１６】次に本発明のライナーの製造方法について
説明すると、熱可塑性繊維を含むウェブ状繊維集合体を
部分的に加熱圧着させた後、ジャケット接触面に該当す
る不織布面に、霧状噴霧、又は、泡状塗工により、高分
子樹脂を付着させる。このとき、高分子樹脂の粘度調整
及び塗工量を調整することで、ディスクと接する側への
樹脂の移行を防ぎ、この状態で予備乾燥及び硬化を行う
ことにより本発明のライナーを得ることができる。Next, the method for producing the liner of the present invention will be described. After a web-shaped fiber assembly containing thermoplastic fibers is partially thermocompressed, it is sprayed onto the non-woven fabric surface corresponding to the jacket contact surface. Alternatively, the polymer resin is attached by foam coating. At this time, the viscosity of the polymer resin is adjusted and the coating amount is adjusted to prevent the resin from migrating to the side in contact with the disc, and the liner of the present invention can be obtained by predrying and curing in this state. it can.
【００１７】以下実施例により、本発明を更に具体的に
説明するが、実施例中の各種評価、測定法は次の方法に
よる。The present invention will be described in more detail with reference to the following examples. Various evaluations and measuring methods in the examples are as follows.
【００１８】〔ライナー繊維屑（リント）の評価〕試料
９０ｃｍ2 ×５枚用意し、水中で超音波振動（１分間）
を与え、水中に分散した繊維屑（リント）をフィルター
でろ過し、これを目視判断する。[Evaluation of liner fiber waste (lint)] 90 cm 2 × 5 samples were prepared and ultrasonically vibrated in water (1 minute).
Then, the fiber waste (lint) dispersed in water is filtered by a filter, and this is visually judged.
【００１９】〔イールドテスト〕フロッピーディスク用
ライナーを付設したシェルにディスクを組込み、各１０
０ピース用意する。測定器は、東京エンジニアリング
（株）製ドロップ−１Ｎ−ＯＵＴカウンターを用い一定
回数繰り返し測定する。[Yield test] Disks were built into a shell equipped with a floppy disk liner, and each
Prepare 0 pieces. As a measuring instrument, a Drop-1N-OUT counter manufactured by Tokyo Engineering Co., Ltd. is used to measure repeatedly a certain number of times.
【００２０】〔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込んだシェルを用意し、これを１
０００万ｐａｓｓ回転させる。回転後の再生出力を測定
し、耐久性を評価する。[Durability test] Prepare a shell incorporating a floppy disk with a reproduction output of a certain value or more, and
Rotate for 10 million passes. The reproduction output after rotation is measured to evaluate the durability.
【００２１】〔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 having a mixed fiber of a core component melting point 265 ° C., a sheath component melting point 200 ° C .: core component / sheath component = 1/1) 50% 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.
【００２２】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とポリ
シリコン樹脂との混合樹脂を泡塗工し、次いで予備乾燥
（１００℃×１分）と硬化処理（１６０℃×１分）とを
行なって樹脂付着量３重量％（ポリシリコン樹脂０．５
重量％含む）の不織布Ａを得た。A mixed resin of an acrylic polyurethane resin and a polysilicon resin is bubble-coated on the back surface of this non-woven fabric (the surface which is in contact with the flat roll during thermocompression bonding), followed by preliminary drying (100 ° C. × 1 minute) and curing treatment. (160 ° C. × 1 min) and resin adhesion amount 3% by weight (polysilicon resin 0.5
A non-woven fabric A having a content of wt% was obtained.
【００２３】得られた不織布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までの厚さの３
０％以下の裏面側にのみ樹脂が付着しているのが確認さ
れた。この不織布Ａの各種評価を表１に示した。The obtained non-woven fabric A was dyed and observed under a microscope.
It was confirmed that the resin adhered only to the back surface side of 0% or less. Various evaluations of this non-woven fabric A are shown in Table 1.
【００２４】[0024]
【表１】 [Table 1]
【００２５】〔実施例２〕実施例１で用いたのと同様の
熱圧着不織布の裏面に、実施例１と同じ手法で樹脂を付
着させて樹脂付着量５重量％（ポリシリコン樹脂１．０
重量％を含む）の不織布Ｂを得た。Example 2 A resin was attached to the back surface of a thermocompression-bonded nonwoven fabric similar to that used in Example 1 in the same manner as in Example 1 to obtain a resin adhesion amount of 5% by weight (polysilicon resin 1.0%).
A non-woven fabric B having a weight percentage of 100% was obtained.
【００２６】得られた不織布Ｂを実施例１と同様に顕微
鏡で観察したところ、非熱圧着部の裏面から表面までの
厚さの５０％以下の裏面側にのみ樹脂が付着しているの
が確認された。この不織布Ｂの各種評価も表１に示し
た。When the obtained non-woven fabric B was observed with a microscope in the same manner as in Example 1, it was found that the resin adhered only to the back surface side of the non-thermocompression bonded portion of 50% or less of the thickness from the back surface to the front surface. confirmed. Various evaluations of this nonwoven fabric B are also shown in Table 1.
【００２７】〔比較例１〕実施例１で用いたのと同様の
熱圧着不織布の両面に実施例１と同じ手法で樹脂を付着
させて樹脂付着量６重量％の不織布Ｃを得た。Comparative Example 1 A non-woven fabric C having a resin adhesion amount of 6% by weight was obtained by adhering a resin on both surfaces of the same thermocompression-bonded non-woven fabric used in Example 1 in the same manner as in Example 1.
【００２８】得られた不織布Ｃを実施例１と同様に顕微
鏡で観察したところ、非熱圧着部の裏面から表面に至る
全ての部分に樹脂が付着しているのが確認された。When the obtained non-woven fabric C was observed with a microscope in the same manner as in Example 1, it was confirmed that the resin adhered to all parts from the back surface to the front surface of the non-thermocompression bonded portion.
【００２９】この不織布Ｃの各種評価も表１に示した。Various evaluations of this nonwoven fabric C are also shown in Table 1.
【００３０】〔比較例２〕実施例１で用いたのと同様の
熱圧着不織布（高分子樹脂を付着させていない不織布）
を不織布Ｄとして、その各種評価も表１に示した。[Comparative Example 2] The same thermocompression-bonded non-woven fabric as used in Example 1 (non-woven fabric to which no polymer resin is attached)
Table 1 shows various evaluations of the nonwoven fabric D.
【００３１】[0031]
【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ほとんどなく、イールドが非常に良
好で、耐久性も優れている等多大の工業的効果を奏する
ものである。The liner of the present invention constructed as described above does not impair the cleaning property, hardly produces lint which causes an error, has a very good yield, and has excellent durability. It has a great industrial effect.
【図１】本発明の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 liner for a floppy disk of 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付着繊維の各種分布を示す説明
図である。FIG. 2 is an explanatory view showing various distributions of polymer resin-adhered fibers in a non-thermocompression-bonded portion of the floppy disk liner of FIG.
【図３】高分子樹脂による繊維間接着部の拡大図であ
る。FIG. 3 is an enlarged view of a fiber-fiber adhesive portion made of a polymer resin.
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 ７ 線状の樹脂付着部 ８ 点状の樹脂付着部 ９ 構成繊維1 Liner front surface (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 7 Linear resin adhesion part 8 Point-shaped resin adhesion part 9 Constituent fiber
Claims (3)
着部とが存在し、熱圧着部によって形態が保持された不
織布からなり、かつ高分子樹脂が非熱圧着部の裏面及び
内部に付着し、表面には実質的に付着していないことを
特徴とするフロッピーディスク用ライナー。1. 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. A liner for a floppy disk, which is characterized in that it adheres to and is not substantially adhered to the surface.
までの厚さの５０％以下の裏面側の部分に５重量％以下
付着している請求項１記載のフロッピーディスク用ライ
ナー。2. The liner for a floppy disk according to claim 1, wherein the polymer resin is adhered in an amount of 5% by weight or less on a portion of the non-thermocompression-bonded portion from the rear surface to the front surface, which is 50% or less in thickness on the rear surface side.
この内平滑剤が０．５〜２重量％含まれている請求項１
又は２記載のフロッピーディスク用ライナー。3. The adhesion amount of the polymer resin is 1 to 5% by weight,
The inner smoothing agent is contained in an amount of 0.5 to 2% by weight.
Or the liner for a floppy disk described in 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21951591A JPH0562420A (en) | 1991-08-30 | 1991-08-30 | Flotpie disk liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21951591A JPH0562420A (en) | 1991-08-30 | 1991-08-30 | Flotpie disk liner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0562420A true JPH0562420A (en) | 1993-03-12 |
Family
ID=16736678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21951591A Pending JPH0562420A (en) | 1991-08-30 | 1991-08-30 | Flotpie disk liner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0562420A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6140656A (en) * | 1995-01-10 | 2000-10-31 | Mitsubishi Denki Kabushiki Kaisha | Ion implantation apparatus, ion implantation method and semiconductor device |
-
1991
- 1991-08-30 JP JP21951591A patent/JPH0562420A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6140656A (en) * | 1995-01-10 | 2000-10-31 | Mitsubishi Denki Kabushiki Kaisha | Ion implantation apparatus, ion implantation method and semiconductor device |
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