JPH04345632A - Carrier tape, conductive coating material, and production of carrier tape - Google Patents
Carrier tape, conductive coating material, and production of carrier tapeInfo
- Publication number
- JPH04345632A JPH04345632A JP3117489A JP11748991A JPH04345632A JP H04345632 A JPH04345632 A JP H04345632A JP 3117489 A JP3117489 A JP 3117489A JP 11748991 A JP11748991 A JP 11748991A JP H04345632 A JPH04345632 A JP H04345632A
- Authority
- JP
- Japan
- Prior art keywords
- tape
- carrier tape
- conductive coating
- conductive
- vinyl acetate
- 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.)
- Granted
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 30
- 239000011248 coating agent Substances 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 229920003023 plastic Polymers 0.000 claims abstract description 21
- 239000004033 plastic Substances 0.000 claims abstract description 21
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000002834 transmittance Methods 0.000 claims abstract description 13
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229920000058 polyacrylate Polymers 0.000 claims abstract description 9
- 239000003960 organic solvent Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 239000003973 paint Substances 0.000 claims description 30
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 claims description 12
- 229920000642 polymer Polymers 0.000 abstract description 6
- 238000001035 drying Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 abstract description 3
- 230000002085 persistent effect Effects 0.000 abstract 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- 239000004094 surface-active agent Substances 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 4
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 239000012046 mixed solvent Substances 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 3
- 229910001887 tin oxide Inorganic materials 0.000 description 3
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 2
- 229910000410 antimony oxide Inorganic materials 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910003437 indium oxide Inorganic materials 0.000 description 2
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 2
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 description 2
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 2
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 239000004645 polyester resin Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 239000009719 polyimide resin Substances 0.000 description 2
- 229920005990 polystyrene resin Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- -1 ethyl cellosolve Chemical compound 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000007756 gravure coating Methods 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 150000003613 toluenes Chemical class 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Abstract
Description
【０００１】0001
【発明の技術分野】本発明はＩＣチップ、スイッチ、コ
ンデンサなどの電気部品の包装に用いられるキャリアテ
ープおよびこのようなキャリアテープの製造などに好適
に用いられる導電性塗料ならびにこの導電性塗料を用い
た前記キャリアテープの製造方法に関する。TECHNICAL FIELD OF THE INVENTION The present invention relates to a carrier tape used for packaging electrical parts such as IC chips, switches, and capacitors, a conductive paint suitable for manufacturing such carrier tape, and a method using the conductive paint. The present invention relates to a method of manufacturing the carrier tape.
【０００２】0002
【発明の技術的背景】従来よりチップホールが形成され
ているプラスチックテープがキャリアテープとして用い
られている。またこのようなプラスチック製キャリアテ
ープには、塩化ビニル樹脂、ポリイミド樹脂、ポリスチ
ロール樹脂、ポリエステル樹脂などのプラスチックが用
いられ、その表面抵抗は、１０１２Ω／□を越えており
、プラスチックの種類によって異なるが、通常、１０１
３〜１０１５Ω／□である。TECHNICAL BACKGROUND OF THE INVENTION Conventionally, plastic tapes in which chip holes are formed have been used as carrier tapes. In addition, plastics such as vinyl chloride resin, polyimide resin, polystyrene resin, and polyester resin are used for such plastic carrier tapes, and their surface resistance exceeds 1012Ω/□, although it varies depending on the type of plastic. , usually 101
It is 3 to 1015Ω/□.
【０００３】この種のプラスチック製キャリアテープの
チップホール中にチップ部品などを収納すると、（１）
これらの部品が静電的にこのホールに付着し、このホー
ルから部品の取り出しが円滑に行なえないという問題お
よび（２）チップ部品などの集積度が高くなり、これら
の部品が小型になるにつれてこられの部品に静電破壊が
おこるという問題がある。[0003] When chip parts and the like are stored in the chip holes of this type of plastic carrier tape, (1)
(2) As the degree of integration of chip components increases and these components become smaller, this problem becomes more serious. There is a problem in that electrostatic discharge damage occurs to the components.
【０００４】また上記のような問題を解決するために、
イオン導電性を有する界面活性剤あるいはカーボンなど
の導電性粉末を含むプラスチック製キャリアテープ（特
開昭６２−２７２５５１号）を用いることが提案されて
いる。[0004] Also, in order to solve the above problems,
It has been proposed to use a plastic carrier tape (Japanese Unexamined Patent Publication No. 272551/1982) containing an ionic conductive surfactant or a conductive powder such as carbon.
【０００５】イオン導電性を有する界面活性剤を含むプ
ラスチック製キャリアテープは、界面活性剤によってあ
る程度の導電性がキャリアテープに付与される。しかし
ながら、この種のキャリアテープは、帯電防止能力が充
分でなく、この帯電防止能力が環境に依存して変化し、
特に低湿度条件下では帯電防止効果が著しく低下すると
いう問題がある。さらにこの種のキャリアテープは、製
造後の期間の経過とともに界面活性剤がテープ中からブ
リードアウトし、これに伴ってキャリアテープの帯電防
止能力が低下するという問題をかかえている。[0005] In a plastic carrier tape containing a surfactant having ionic conductivity, a certain degree of conductivity is imparted to the carrier tape by the surfactant. However, this type of carrier tape does not have sufficient antistatic ability, and this antistatic ability changes depending on the environment.
Particularly under low humidity conditions, there is a problem in that the antistatic effect is significantly reduced. Furthermore, this type of carrier tape has a problem in that the surfactant bleeds out from the tape over time after manufacture, and the antistatic ability of the carrier tape decreases accordingly.
【０００６】他方、カーボンなどの導電性粉末を含むプ
ラスチック製キャリアテープは、光透過性が低く、ヘー
ズが高いため、チップホール中にチップ部品などを収納
した状態で部品を目視で検査することが難しく、また光
学的手段を用いて検査することも難しいという問題をか
かえている。従ってチップ部品などの生産の自動化を進
める上で光透過性が高く、ヘーズが低いキャリアテープ
が望まれている。On the other hand, plastic carrier tapes containing conductive powder such as carbon have low light transmittance and high haze, making it difficult to visually inspect components with chip components stored in the chip holes. The problem is that it is difficult and difficult to inspect using optical means. Therefore, carrier tapes with high light transmittance and low haze are desired in promoting automation of production of chip components and the like.
【０００７】以上の点から、現在、透明性に優れ、ヘー
ズが低く、その上導電性が高く、しかも温湿度などの環
境が変化しても帯電防止能力が変わりなく持続的に発揮
できるようなキャリアテープが要求されている。[0007] In light of the above points, there are currently products that have excellent transparency, low haze, and high conductivity, and can maintain their antistatic ability even when the environment such as temperature and humidity changes. Carrier tape is required.
【０００８】本発明者らは、このような優れた性質を有
するキャリアテープを提供するため、鋭意検討を重ねた
結果、プラスチック製キャリアテープ用基材の表面に特
定の導電性塗料を塗布・乾燥して導電性塗膜を形成し、
成型することにより上記の要求を満たすキャリアテープ
が得られることを見出し、本発明を完成させるに至った
。[0008] In order to provide a carrier tape with such excellent properties, the inventors of the present invention, as a result of extensive studies, applied and dried a specific conductive paint on the surface of a plastic carrier tape base material. to form a conductive coating,
The present inventors have discovered that a carrier tape that meets the above requirements can be obtained by molding, and have completed the present invention.
【０００９】[0009]
【発明の目的】したがって、本発明は、透明性に優れ、
ヘーズが低く、その上導電性が高く、しかも温湿度など
の環境が変化しても帯電防止能力が変わりなく持続的に
発揮できるようなキャリアテープ、およびこのような優
れた性質を有するキャリアテープの製造方法、ならびに
このキャリアテープの製造などの好適に用いることがで
きる導電性塗料を提供することを目的としている。[Object of the invention] Therefore, the present invention has excellent transparency and
A carrier tape that has low haze, high conductivity, and can maintain its antistatic ability even when the environment such as temperature and humidity changes, and a carrier tape that has such excellent properties. The object of the present invention is to provide a manufacturing method and a conductive paint that can be suitably used for manufacturing this carrier tape.
【００１０】0010
【発明の概要】本発明に係るキャリアテープは、プラス
チックテープ基材の表面に導電性塗膜が形成されてなり
、ＪＩＳ Ｋ−７１０５に記載された方法で測定した
全光線透過率が６０％以上であることを特徴としている
。Summary of the Invention The carrier tape according to the present invention has a conductive coating film formed on the surface of a plastic tape base material, and has a total light transmittance of 60% or more as measured by the method described in JIS K-7105. It is characterized by being
【００１１】またこのようなキャリアテープの製造など
に好適に用いることができる本発明に係る導電性塗料は
、（ａ）導電性粉末が、（ｂ）数平均重合度が２００〜
１２００の範囲にあり、かつ３〜２５重量％の酢酸ビニ
ル単位を有する塩化ビニル−酢酸ビニル共重合体および
（ｃ）数平均重合度が５０００〜５００００の範囲にあ
るアクリル重合体が有機溶媒中に溶解または分散して存
在する液中に、分散していることを特徴としている。[0011] The conductive paint according to the present invention, which can be suitably used for the production of such carrier tapes, comprises (a) a conductive powder, (b) a number average degree of polymerization of 200 to 200.
(c) a vinyl chloride-vinyl acetate copolymer having a vinyl acetate unit in the range of 1,200 and 3 to 25% by weight; and (c) an acrylic polymer having a number average degree of polymerization in the range of 5,000 to 50,000 in an organic solvent. It is characterized by being dispersed in a liquid that exists dissolved or dispersed.
【００１２】さらに本発明は、プラスチックテープ基材
の表面に上記導電性塗料を塗布し、次いで乾燥するキャ
リアテープの製造方法をも包含している。Furthermore, the present invention includes a method for producing a carrier tape, which comprises applying the above conductive coating material to the surface of a plastic tape base material and then drying it.
【００１３】[0013]
【発明の具体的説明】以下、本発明に係るキャリアテー
プ、導電性塗料およびこの導電性塗料を用いたキャリア
テープの製造方法を順次具体的に説明する。DETAILED DESCRIPTION OF THE INVENTION A carrier tape, a conductive paint, and a method for producing a carrier tape using the conductive paint according to the present invention will be explained in detail below.
【００１４】キャリアテープ
本発明に係るキャリアテープは、塩化ビニル樹脂、ポリ
イミド樹脂、ポリスチロール樹脂、ポリエステル樹脂な
どの従来使用されるプラスチックテープ基材の片面また
は両面に導電性塗膜が形成されている。Carrier Tape The carrier tape according to the present invention has a conductive coating film formed on one or both sides of a conventionally used plastic tape base material such as vinyl chloride resin, polyimide resin, polystyrene resin, or polyester resin. .
【００１５】この導電性塗膜の表面抵抗は、１０１２Ω
／□以下であることが好ましく、特に１０６ 〜１０１
０Ω／□の範囲にあることが、上述したような静電気の
発生に伴う問題を解決する上で好ましい。[0015] The surface resistance of this conductive coating is 1012Ω.
/□ or less is preferable, especially 106 to 101
A value in the range of 0Ω/□ is preferable in order to solve the problems associated with the generation of static electricity as described above.
【００１６】またこの導電性塗膜の膜厚は、約１〜５μ
ｍの範囲にあることが好ましい。ところで本発明に係る
キャリアテープは、ＪＩＳ Ｋ−７１０５に記載され
た方法で測定した全光線透過率が６０％以上、好ましく
は８０％以上であり、またヘーズが４０％以下、好まし
くは３０％以下であることが望ましい。[0016] The thickness of this conductive coating is about 1 to 5 μm.
It is preferably in the range of m. By the way, the carrier tape according to the present invention has a total light transmittance of 60% or more, preferably 80% or more, and a haze of 40% or less, preferably 30% or less, as measured by the method described in JIS K-7105. It is desirable that
【００１７】この全光線透過率が６０％未満である場合
には、キャリアテープのチップホール中に収納された状
態のチップ部品などを光学的な方法では正確に検知でき
ないという弊害が生じる。またヘーズが４０％を越える
場合には、キャリアテープのチップホール中に収納され
た状態でチップ部品などを観察するのが難しくなり、製
品管理に支障をきたすので好ましくない。[0017] If the total light transmittance is less than 60%, a problem arises in that chip components accommodated in the chip holes of the carrier tape cannot be accurately detected by optical methods. Further, if the haze exceeds 40%, it becomes difficult to observe the chip components while they are housed in the chip holes of the carrier tape, which is undesirable because it impedes product management.
【００１８】導電性塗料
上記本発明に係るキャリアテープは、下記のような本発
明に係る導電性塗料を用いて製造することができる。Conductive Paint The carrier tape according to the present invention described above can be manufactured using the following conductive paint according to the present invention.
【００１９】この導電性塗料は、（ａ）導電性粉末、（
ｂ）数平均重合度が２００〜１２００の範囲にあり、か
つ３〜２５重量％の酢酸ビニル単位を有する塩化ビニル
−酢酸ビニル共重合体および（ｃ）数平均重合度が５０
００〜５００００の範囲にあるアクリル重合体が有機溶
媒中に含まれて存在するような液状組成物からなってい
る。[0019] This conductive paint comprises (a) conductive powder, (
b) a vinyl chloride-vinyl acetate copolymer having a number average degree of polymerization in the range of 200 to 1200 and having 3 to 25% by weight of vinyl acetate units; and (c) a number average degree of polymerization of 50
It consists of a liquid composition in which an acrylic polymer in the range of 00 to 50,000 is contained in an organic solvent.
【００２０】上記（ａ）導電性粉末には、導電性塗膜が
上述したような導電性を示し、かつ導電性塗膜を表面に
形成して得られたキャリアテープが上述したような光学
的性質を示すような材料が用いられる。The conductive powder (a) has a conductive coating that exhibits conductivity as described above, and a carrier tape obtained by forming the conductive coating on the surface has an optical property as described above. Materials that exhibit properties are used.
【００２１】このような材料としては、具体的には、酸
化スズ、酸化インジウム、酸化アンチモンおよびフッ化
マグネシウムあるいは、リン、フッ素、アンチモンなど
の異種元素がドープされた酸化スズ、スズ、アンチモン
などの異種元素がドープされた酸化インジウム、スズ、
インジウムなどの異種元素がドープされた酸化アンチモ
ンおよび亜鉛などの異種元素がドープされたフッ化マグ
ネシウムなどが挙げられる。Specific examples of such materials include tin oxide, indium oxide, antimony oxide, and magnesium fluoride, or tin oxide, tin, and antimony doped with different elements such as phosphorus, fluorine, and antimony. Indium oxide doped with different elements, tin oxide,
Examples include antimony oxide doped with a different element such as indium, and magnesium fluoride doped with a different element such as zinc.
【００２２】また導電性粉末の粒径は、０．４μｍ以下
であることが好ましく、特に０．００５〜０．２μｍの
範囲にあることがキャリアテープが上述したような光学
的性質を保持する上で好ましい。[0022] The particle size of the conductive powder is preferably 0.4 μm or less, particularly in the range of 0.005 to 0.2 μm, in order for the carrier tape to maintain the above-mentioned optical properties. It is preferable.
【００２３】上述したような材料からなり、粒径が上述
したような範囲にある導電性粉末は、たとえば本出願人
が先に出願した特開昭６２−１８３８５０号、特開昭６
２−２３０６１７号、特開昭６３−１１５１９号などに
記載された方法によって得られる。Conductive powder made of the above-mentioned material and having a particle size within the above-mentioned range is disclosed in, for example, Japanese Patent Laid-Open Nos. 62-183850 and 1983, both of which were previously filed by the present applicant.
It can be obtained by the method described in No. 2-230617, JP-A-63-11519, and the like.
【００２４】本発明に係る導電性塗料は、（ｂ）数平均
重合度が２００〜１２００、好ましくは３００〜９５０
の範囲にあり、３〜２５重量％、好ましくは５〜２０重
量％の酢酸ビニル単位を有する塩化ビニル−酢酸ビニル
共重合体を含有している。The conductive paint according to the present invention has (b) a number average degree of polymerization of 200 to 1200, preferably 300 to 950.
It contains a vinyl chloride-vinyl acetate copolymer having vinyl acetate units in an amount of 3 to 25% by weight, preferably 5 to 20% by weight.
【００２５】この重合体の数平均重合度が２００未満の
場合には、柔軟な導電性塗膜が得られ、この導電性塗膜
は傷付き易いという弊害が生じ、１２００を越える場合
には、逆に導電性塗膜が硬くなり、得られた積層テープ
の延伸性が低下するという弊害が生じる。If the number average degree of polymerization of this polymer is less than 200, a flexible conductive coating film will be obtained, but this conductive coating film will be easily damaged, and if it exceeds 1200, On the contrary, the conductive coating film becomes hard, and the drawability of the obtained laminated tape decreases.
【００２６】また酢酸ビニル単位が５重量％未満の場合
には、得られた積層テープを延伸する際にテープ基材と
導電性塗膜との密着性が低下するという弊害が生じ、２
５重量％を越える場合には、柔軟な導電性塗膜が得られ
、この導電性塗膜は傷付き易いという弊害が生じる。
（実際、テープ基材上に導電性塗膜を積層した後に、チ
ップホールなどが形成されるが、この際に最高５００％
程度まで積層テープが延伸される。）本発明に係る導電
性塗料は、さらに（ｃ）数平均重合度が５０００〜５０
０００、好ましくは８０００〜４００００の範囲にある
アクリル重合体を含有している。Furthermore, if the vinyl acetate unit content is less than 5% by weight, the adhesion between the tape base material and the conductive coating film decreases when the obtained laminated tape is stretched.
When it exceeds 5% by weight, a flexible conductive coating film is obtained, which has the disadvantage of being easily scratched. (In fact, chip holes etc. are formed after laminating the conductive coating film on the tape base material, but at this time up to 500%
The laminated tape is stretched to a certain extent. ) The conductive paint according to the present invention further has (c) a number average degree of polymerization of 5000 to 50.
000, preferably in the range of 8,000 to 40,000.
【００２７】この重合体の数平均重合度が５０００未満
の場合には、得られた導電性塗膜によるヘーズの改善効
果が充分でなく、逆に数平均重合度が５００００を越え
たアクリル重合体は、塩化ビニル−酢酸ビニル共重合体
との相溶性が低下するという弊害が生じる。If the number average degree of polymerization of this polymer is less than 5,000, the effect of improving haze by the obtained conductive coating film will not be sufficient; has the disadvantage that the compatibility with the vinyl chloride-vinyl acetate copolymer decreases.
【００２８】本発明に係る導電性塗料の溶媒には、有機
溶媒が用いられている。本発明に係る導電性塗料を調製
する上で好ましい有機溶媒としては、具体的には、アル
コール類、例えばイソプロピルアルコール、ブタノール
、ケトン類、例えばメチルエチルケトン、メチルイソブ
チルケトン、アノン、エステル類、例えば酢酸エチル、
酢酸ブチル、エーテル類、例えばエチルセロソルブ、ト
ルエン類、例えばキシレン、トルエンなどが挙げられる
。[0028] An organic solvent is used as the solvent for the conductive paint according to the present invention. Preferred organic solvents for preparing the conductive paint according to the present invention include alcohols such as isopropyl alcohol, butanol, ketones such as methyl ethyl ketone, methyl isobutyl ketone, anone, and esters such as ethyl acetate. ,
Examples include butyl acetate, ethers such as ethyl cellosolve, and toluenes such as xylene and toluene.
【００２９】本発明に係る導電性塗料において、（ａ）
導電性粉末は、（ｂ）塩化ビニル−酢酸ビニル共重合体
と（ｃ）アクリル重合体との合計量に対し、重量比で５
／９５〜９０／１０、特に４０／６０〜８０／２０の範
囲にあることが好ましい。[0029] In the conductive paint according to the present invention, (a)
The conductive powder has a weight ratio of 5 to the total amount of (b) vinyl chloride-vinyl acetate copolymer and (c) acrylic polymer.
It is preferably in the range of /95 to 90/10, particularly 40/60 to 80/20.
【００３０】また、（ｂ）塩化ビニル−酢酸ビニル共重
合体は、（ｂ）塩化ビニル−酢酸ビニル共重合体と（ｃ
）アクリル重合体との合計量に対し、１０〜９０重量％
、特に３０〜７０重量％の範囲にあることが好ましい。In addition, (b) vinyl chloride-vinyl acetate copolymer is composed of (b) vinyl chloride-vinyl acetate copolymer and (c
) 10 to 90% by weight based on the total amount with the acrylic polymer
, particularly preferably in the range of 30 to 70% by weight.
【００３１】また本発明に係る導電性塗料の固形分濃度
は、５〜５０重量％、特に１０〜４０重量％の範囲にあ
ることが好ましい。本発明に係る導電性塗料は、例えば
（ａ）導電性粉末の有機溶媒への分散性を改善するため
に界面活性剤、カップリング剤等をを含有していてもよ
い。The solid content concentration of the conductive paint according to the present invention is preferably in the range of 5 to 50% by weight, particularly 10 to 40% by weight. The conductive paint according to the present invention may contain, for example, (a) a surfactant, a coupling agent, etc. in order to improve the dispersibility of the conductive powder in an organic solvent.
【００３２】キャリアテープの製造方法本発明に係るキ
ャリアテープは、プラスチックテープ基材の表面に上記
導電性塗料をロールコート法、グラビアコート法などの
方法で塗布し、次いで乾燥する工程を含んで製造される
。Manufacturing method of carrier tape The carrier tape according to the present invention is manufactured by applying the above-mentioned conductive paint to the surface of a plastic tape base material by a method such as a roll coating method or a gravure coating method, and then drying it. be done.
【００３３】[0033]
【発明の効果】本発明に係るキャリアテープは、プラス
チックテープ基材の表面に本発明に係る導電性塗料を塗
布し、次いで乾燥することによって得ることができる。Effects of the Invention The carrier tape according to the present invention can be obtained by applying the conductive paint according to the present invention to the surface of a plastic tape base material and then drying it.
【００３４】本発明に係るキャリアテープは、このよう
にしてプラスチックテープ基材の表面に形成された導電
性塗膜によって導電性が付与され、この結果、導電性が
高く、しかも温湿度などの環境が変化しても帯電防止能
力が変わりなく持続的に発揮される。しかも本発明に係
る導電性塗料を塗布して形成される導電性塗膜はプラス
チックテープ基材との密着性がよい上に、導電性塗膜が
積層されているプラスチックテープ基材を延伸しても、
導電性塗膜によってキャリアテープの全光線透過率およ
びヘーズがほとんど低下することはないので、本発明に
係るキャリアテープは、透明性に優れ、ヘーズが低い。The carrier tape according to the present invention is imparted with conductivity by the conductive coating film thus formed on the surface of the plastic tape base material, and as a result, it has high conductivity and is resistant to environments such as temperature and humidity. The antistatic ability remains unchanged even if the temperature changes. Moreover, the conductive coating film formed by applying the conductive paint according to the present invention not only has good adhesion to the plastic tape base material, but also allows the plastic tape base material on which the conductive coating film is laminated to be stretched. too,
Since the conductive coating film hardly reduces the total light transmittance and haze of the carrier tape, the carrier tape according to the present invention has excellent transparency and low haze.
【００３５】従って本発明に係るキャリアテープは、Ｉ
Ｃチップ、スイッチ、コンデンサ等の電気部品を自動的
に効率的に生産する際に、これら電気部品の補助具とし
て好適である。[0035] Therefore, the carrier tape according to the present invention has I
It is suitable as an auxiliary tool for automatically and efficiently producing electrical components such as C chips, switches, and capacitors.
【００３６】[0036]
【実施例】以下、本発明を実施例により説明するが、本
発明はこれら実施例に限定されるものではない。[Examples] The present invention will be explained below with reference to Examples, but the present invention is not limited to these Examples.
【００３７】[0037]
【実施例１】１０重量％の酢酸ビニル単位を有し、数平
均重合度が３４０である塩化ビニル−酢酸ビニル共重合
体６０重量部に数平均重合度が１０，０００であるアク
リル重合体４０重量部を混合した。この混合重合体１０
０重量部に対し、導電性粉末（触媒化成工業（株）社製
、ＥＬＣＯＭ ＴＬ−３０）１５０重量部と、メチル
エチルケトンとトルエンとの混合溶剤２５０重量部を加
え、サンドミルで２時間分散して導電性塗料を調製した
。[Example 1] 60 parts by weight of a vinyl chloride-vinyl acetate copolymer having 10% by weight of vinyl acetate units and a number average degree of polymerization of 340 and 40 parts by weight of an acrylic polymer having a number average degree of polymerization of 10,000. Parts by weight were mixed. This mixed polymer 10
To 0 parts by weight, 150 parts by weight of conductive powder (manufactured by Catalysts Kasei Kogyo Co., Ltd., ELCOM TL-30) and 250 parts by weight of a mixed solvent of methyl ethyl ketone and toluene were added and dispersed in a sand mill for 2 hours to make the powder conductive. A color paint was prepared.
【００３８】この導電性塗料をバーコーターで厚さ２５
０μｍのポリ塩化ビニルフィルムの片面に塗布して厚さ
２μｍの塗膜を形成した。得られた積層フィルムを所定
のテープ幅に裁断し、得られた積層テープをこのテープ
が延伸倍率５００倍で延伸されるようにして圧空成形し
た。[0038] This conductive paint was coated with a bar coater to a thickness of 25 mm.
It was applied to one side of a 0 μm polyvinyl chloride film to form a 2 μm thick coating. The obtained laminated film was cut into a predetermined tape width, and the obtained laminated tape was air-press-formed so that the tape was stretched at a stretching ratio of 500 times.
【００３９】積層テープの延伸前後の表面抵抗、全光線
透過率、ヘーズを次のようにして測定した。
表面抵抗
ＪＩＳ Ｋ−６９１１に記載された方法で測定した。The surface resistance, total light transmittance, and haze of the laminated tape before and after stretching were measured as follows. Surface resistance Measured by the method described in JIS K-6911.
【００４０】全光線透過率 ＪＩＳ Ｋ−７１０５に記載された方法で測定した。 ヘーズ ＪＩＳ Ｋ−７１０５に記載された方法で測定した。[0040] Total light transmittance It was measured by the method described in JIS K-7105. haze It was measured by the method described in JIS K-7105.
【００４１】結果を表１に示す。The results are shown in Table 1.
【００４２】[0042]
【実施例２】２０重量％の酢酸ビニル単位を有し、数平
均重合度が８００である塩化ビニル−酢酸ビニル共重合
体４０重量部に数平均重合度が２５，０００であるアク
リル重合体６０重量部を混合した。この混合重合体１０
０重量部に対し、導電性粉末（触媒化成工業（株）社製
、ＥＬＣＯＭ ＴＬ−３０）２００重量部と、アノン
とトルエンとの混合溶剤５００重量部を加え、ボールミ
ルで１２時間分散して導電性塗料を調製した。[Example 2] 40 parts by weight of a vinyl chloride-vinyl acetate copolymer having 20% by weight of vinyl acetate units and a number average degree of polymerization of 800 and 60 parts by weight of an acrylic polymer having a number average degree of polymerization of 25,000. Parts by weight were mixed. This mixed polymer 10
To 0 parts by weight, 200 parts by weight of conductive powder (manufactured by Catalysts Kasei Kogyo Co., Ltd., ELCOM TL-30) and 500 parts by weight of a mixed solvent of anone and toluene were added and dispersed in a ball mill for 12 hours to make the powder conductive. A color paint was prepared.
【００４３】この導電性塗料をバーコーターで厚さ３０
０μｍのポリ塩化ビニルフィルムの片面に塗布して厚さ
３μｍの塗膜を形成した。得られた積層フィルムを所定
のテープ幅に裁断し、得られた積層テープをこのテープ
が延伸倍率４００倍で延伸されるようにして真空成形し
た。[0043] This conductive paint was coated with a bar coater to a thickness of 30 mm.
It was applied to one side of a 0 μm polyvinyl chloride film to form a coating film with a thickness of 3 μm. The obtained laminated film was cut into a predetermined tape width, and the obtained laminated tape was vacuum formed so as to be stretched at a stretching ratio of 400 times.
【００４４】積層テープの延伸前後の表面抵抗、全光線
透過率、ヘーズを実施例１と同様にして測定した。結果
を表１に示す。The surface resistance, total light transmittance, and haze of the laminated tape before and after stretching were measured in the same manner as in Example 1. The results are shown in Table 1.
【００４５】[0045]
【実施例３】１５重量％の酢酸ビニル単位を有し、数平
均重合度が９００である塩化ビニル−酢酸ビニル共重合
体３０重量部に数平均重合度が４０，０００であるアク
リル重合体７０重量部を混合した。この混合重合体１０
０重量部に対し、導電性粉末（触媒化成工業（株）社製
、ＥＬＣＯＭ ＴＬ−１３０）２５０重量部と、アノ
ンとエチルセルソルブとの混合溶剤５００重量部を加え
、ボールミルで１２時間分散して導電性塗料を調製した
。[Example 3] Acrylic polymer 70 having a number average degree of polymerization of 40,000 is added to 30 parts by weight of vinyl chloride-vinyl acetate copolymer having 15% by weight of vinyl acetate units and having a number average degree of polymerization of 900. Parts by weight were mixed. This mixed polymer 10
To 0 parts by weight, 250 parts by weight of conductive powder (manufactured by Catalysts Kasei Kogyo Co., Ltd., ELCOM TL-130) and 500 parts by weight of a mixed solvent of anone and ethyl cellosolve were added and dispersed in a ball mill for 12 hours. A conductive paint was prepared.
【００４６】この導電性塗料をバーコーターで厚さ２５
０μｍのポリスチロールフィルムの片面に塗布して厚さ
１．５μｍの塗膜を形成した。得られた積層フィルムを
所定のテープ幅に裁断し、得られた積層テープをこのテ
ープが延伸倍率４００倍で延伸されるようにしてプレス
成形した。[0046] This conductive paint was coated with a bar coater to a thickness of 25 mm.
It was applied to one side of a 0 μm polystyrene film to form a coating film with a thickness of 1.5 μm. The obtained laminated film was cut into a predetermined tape width, and the obtained laminated tape was press-molded so that the tape was stretched at a stretching ratio of 400 times.
【００４７】積層テープの延伸前後の表面抵抗、全光線
透過率、ヘーズを実施例１と同様にして測定した。結果
を表１に示す。The surface resistance, total light transmittance, and haze of the laminated tape before and after stretching were measured in the same manner as in Example 1. The results are shown in Table 1.
【００４８】[0048]
【比較例１】３重量％の酢酸ビニル単位を有し、数平均
重合度が１６００である塩化ビニル−酢酸ビニル共重合
体１００重量部に対し、導電性粉末（触媒化成工業（株
）社製、ＥＬＣＯＭ ＴＬ−３０）２００重量部と、
アノンとトルエンとの混合溶剤５００重量部を加え、ボ
ールミルで１２時間分散して導電性塗料を調製した。[Comparative Example 1] 100 parts by weight of a vinyl chloride-vinyl acetate copolymer having 3% by weight of vinyl acetate units and a number average degree of polymerization of 1600 was mixed with a conductive powder (manufactured by Catalysts Kasei Kogyo Co., Ltd.). , ELCOM TL-30) 200 parts by weight,
500 parts by weight of a mixed solvent of anone and toluene was added and dispersed in a ball mill for 12 hours to prepare a conductive paint.
【００４９】この導電性塗料をバーコーターで厚さ２５
０μｍのポリ塩化ビニルフィルムの片面に塗布して厚さ
３μｍの塗膜を形成した。得られた積層フィルムを所定
のテープ幅に裁断し、得られた積層テープをこのテープ
が延伸倍率４００倍で延伸されるようにして真空成形し
た。[0049] This conductive paint was coated with a bar coater to a thickness of 25 mm.
It was applied to one side of a 0 μm polyvinyl chloride film to form a coating film with a thickness of 3 μm. The obtained laminated film was cut into a predetermined tape width, and the obtained laminated tape was vacuum formed so as to be stretched at a stretching ratio of 400 times.
【００５０】積層テープの延伸前後の表面抵抗、全光線
透過率、ヘーズを実施例１と同様にして測定した。結果
を表１に示す。The surface resistance, total light transmittance, and haze of the laminated tape before and after stretching were measured in the same manner as in Example 1. The results are shown in Table 1.
【００５１】[0051]
【表１】[Table 1]
Claims (4)
性塗膜が形成されてなり、ＪＩＳ Ｋ−７１０５に記
載された方法で測定した全光線透過率が６０％以上であ
ることを特徴とするキャリアテープ。1. A carrier comprising a conductive coating film formed on the surface of a plastic tape base material and having a total light transmittance of 60% or more as measured by the method described in JIS K-7105. tape.
方法で測定されたヘーズが４０％以下である請求項１記
載のキャリアテープ。2. The carrier tape according to claim 1, which has a haze of 40% or less as measured by the method described in JIS K-7105.
合度が２００〜１２００の範囲にあり、かつ３〜２５重
量％の酢酸ビニル単位を有する塩化ビニル−酢酸ビニル
共重合体および（ｃ）数平均重合度が５０００〜５００
００の範囲にあるアクリル重合体が有機溶媒中に溶解ま
たは分散して存在する液中に、分散してなることを特徴
とする導電性塗料。3. (a) the conductive powder comprises (b) a vinyl chloride-vinyl acetate copolymer having a number average degree of polymerization in the range of 200 to 1200 and having 3 to 25% by weight of vinyl acetate units; (c) Number average degree of polymerization is 5000 to 500
1. An electrically conductive paint characterized in that it is formed by dispersing an acrylic polymer in the range of 0.00 in a liquid dissolved or dispersed in an organic solvent.
項２記載の導電性塗料を塗布し、次いで乾燥したことを
特徴とする請求項１記載のキャリアテープの製造方法。4. The method for producing a carrier tape according to claim 1, wherein the conductive paint according to claim 2 is applied to the surface of a plastic tape base material and then dried.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11748991A JP3210685B2 (en) | 1991-05-22 | 1991-05-22 | Carrier tape, conductive paint and method for producing carrier tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11748991A JP3210685B2 (en) | 1991-05-22 | 1991-05-22 | Carrier tape, conductive paint and method for producing carrier tape |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04345632A true JPH04345632A (en) | 1992-12-01 |
| JP3210685B2 JP3210685B2 (en) | 2001-09-17 |
Family
ID=14712990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11748991A Expired - Lifetime JP3210685B2 (en) | 1991-05-22 | 1991-05-22 | Carrier tape, conductive paint and method for producing carrier tape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3210685B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5846621A (en) * | 1995-09-15 | 1998-12-08 | Minnesota Mining And Manufacturing Company | Component carrier tape having static dissipative properties |
| KR100431276B1 (en) * | 2001-08-28 | 2004-05-12 | 서광석 | Conductive Polymer Films for Carrier Tape Body |
| CN113436787A (en) * | 2021-06-30 | 2021-09-24 | 江苏科麦特科技发展有限公司 | Heat-sensitive conductive film and preparation method and application thereof |
-
1991
- 1991-05-22 JP JP11748991A patent/JP3210685B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5846621A (en) * | 1995-09-15 | 1998-12-08 | Minnesota Mining And Manufacturing Company | Component carrier tape having static dissipative properties |
| KR100431276B1 (en) * | 2001-08-28 | 2004-05-12 | 서광석 | Conductive Polymer Films for Carrier Tape Body |
| CN113436787A (en) * | 2021-06-30 | 2021-09-24 | 江苏科麦特科技发展有限公司 | Heat-sensitive conductive film and preparation method and application thereof |
| CN113436787B (en) * | 2021-06-30 | 2023-02-28 | 江苏科麦特科技发展有限公司 | Heat-sensitive conductive film and preparation method and application thereof |
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|---|---|
| JP3210685B2 (en) | 2001-09-17 |
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