JPH1018196A - Base paper for adhesive paper and adhesive paper - Google Patents
Base paper for adhesive paper and adhesive paperInfo
- Publication number
- JPH1018196A JPH1018196A JP17334996A JP17334996A JPH1018196A JP H1018196 A JPH1018196 A JP H1018196A JP 17334996 A JP17334996 A JP 17334996A JP 17334996 A JP17334996 A JP 17334996A JP H1018196 A JPH1018196 A JP H1018196A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- adhesive
- base paper
- base
- resin
- 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
Landscapes
- Adhesive Tapes (AREA)
- Paper (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、粘着紙用基紙およ
び粘着紙に関するものである。さらに詳しくは耐溶剤性
に優れ、剥離剤(背面処理剤)の塗工時に裏抜けがない
粘着紙基紙およびその基紙を用いた粘着紙に関する。The present invention relates to a base paper for adhesive paper and an adhesive paper. More specifically, the present invention relates to an adhesive paper base paper which has excellent solvent resistance and does not strike through when a release agent (backside treatment agent) is applied, and an adhesive paper using the base paper.
【0002】[0002]
【従来の技術】粘着紙は基紙の一面に粘着剤を塗布し、
反対面にアンダーコート(下塗り)を施し、アンダーコ
ートの上に剥離剤を塗布したものである。2. Description of the Related Art Adhesive paper is prepared by applying an adhesive to one side of a base paper.
An undercoat (undercoat) is applied to the opposite surface, and a release agent is applied on the undercoat.
【0003】粘着加工工程の一例を示すならば、基紙の
片面に糊を塗布し、ドライヤーで乾燥したのちアンダー
コートを反対面に塗布し、ドライヤーで乾燥して、アン
ダーコート面の上に剥離剤を塗工、乾燥して巻き取る。If an example of the adhesive processing step is shown, glue is applied to one side of the base paper, dried with a drier, then an undercoat is applied to the other side, dried with a drier, and peeled on the undercoat surface. Apply the agent, dry and wind it up.
【0004】剥離剤はテープの巻き戻し性を容易にした
り、基材の物性を向上させるなどの目的で施される。[0004] The release agent is applied for the purpose of facilitating the rewinding of the tape or improving the physical properties of the substrate.
【0005】「粘着(粘接着)の新技術とその用途・各
種応用製品の開発資料集」(昭和53年経営開発センタ
ー出版)によれば、これら剥離剤には、長鎖アルキル基
を有する共重合体、天然または合成樹脂のアルキル基含
有化合物、パーフルオロアルキル基含有化合物、珪素そ
の他の金属含有物または長鎖アルキル基を含まない低接
着性樹脂などが使用される。According to "Development Materials of New Adhesive (Adhesive) Technologies and Their Applications and Various Applied Products" (published by Management Development Center in 1978), these release agents have long-chain alkyl groups. Copolymers, natural or synthetic resin alkyl group-containing compounds, perfluoroalkyl group-containing compounds, silicon and other metal-containing substances, and low-adhesion resins containing no long-chain alkyl groups are used.
【0006】粘着剤は被着物との接着がよく、かつ使用
後は被着物への残留物がなく、容易にはがすことができ
るものが理想であり、用途によりゴム系、アクリル系、
ビニル系およびシリコン系粘着剤などから選択され使用
される。Ideally, the pressure-sensitive adhesive has good adhesion to the adherend, has no residue on the adherend after use, and can be easily peeled off.
It is selected from vinyl-based and silicone-based adhesives and used.
【0007】アンダーコートは、剥離剤が基紙を裏抜け
せず表面に均一に塗布できるようにする目止めのためと
基紙と剥離剤の密着性(投錨力)を上げるという2つの
目的で施され、一般に天然ゴムと樹脂とのブレンド、ポ
リウレタン樹脂、酢酸ビニル樹脂、エチレン酢酸ビニル
樹脂などが用いられる。[0007] The undercoat is used for the purpose of preventing the release agent from uniformly penetrating through the base paper without penetrating the base paper and for enhancing the adhesion (anchoring force) between the base paper and the release agent. In general, blends of natural rubber and resin, polyurethane resin, vinyl acetate resin, ethylene vinyl acetate resin and the like are used.
【0008】前記剥離剤を塗工する際の塗工液には溶剤
としてトルエンなどの有機溶剤が用いられることがあ
り、アンダーコートのバリヤー性が不足していると剥離
剤が紙に浸透して表面に均一に塗布することができな
い。[0008] An organic solvent such as toluene may be used as a solvent in a coating liquid for applying the release agent. If the barrier property of the undercoat is insufficient, the release agent permeates the paper. It cannot be applied uniformly to the surface.
【0009】これらの問題点を解決すべく、特公昭55
ー12152では抄紙工程においてフッ素樹脂を0.1
〜1.5重量%、定着助剤を0.4〜5重量%内添した
和紙の一面に粘着剤、他面に剥離剤を塗工した粘着テー
プが開示されている。In order to solve these problems, Japanese Patent Publication No. Sho 55
-12152, the fluororesin was added in the papermaking process at 0.1%.
A pressure-sensitive adhesive tape is disclosed in which an adhesive is coated on one side of the paper and a release agent is coated on the other side of the paper, in which the paper is 1.5 to 1.5% by weight and a fixing aid is 0.4 to 5% by weight.
【0010】しかし、一般にフッ素樹脂は高価であり、
歩留まりが低い内添法は不利な製造法であった。However, fluororesins are generally expensive,
The internal addition method with low yield was a disadvantageous production method.
【発明が解決しようとする課題】本発明は前記のような
粘着紙基紙の欠点を克服し、剥離剤が均一に塗布でき、
品質の安定した粘着紙となりうる粘着紙用基紙を提供す
る物である。SUMMARY OF THE INVENTION The present invention overcomes the above-mentioned drawbacks of the adhesive paper base paper, and enables the release agent to be uniformly applied.
The object of the present invention is to provide a base paper for an adhesive paper which can be an adhesive paper having stable quality.
【0011】[0011]
【課題を解決するための手段】本発明者らは基紙の有機
溶剤に対するバリアー性を高めることを鋭意検討した結
果、フッ素系樹脂と相溶性のある樹脂をフッ素樹脂と併
用して原紙に含浸することにより本発明を完成するに至
った。すなわち、本発明は紙重量に対してノニオン性ま
たはアニオン性の水溶性ポリウレタン樹脂2〜15重量
%およびフッ素系樹脂0.02〜0.3重量%を含浸し
たことを特徴とする粘着紙用基紙である。さらに本発明
は、上記粘着紙用基紙の片面に粘着剤を、反対面に剥離
剤を塗布したことを特徴とする粘着紙である。Means for Solving the Problems The inventors of the present invention have intensively studied to enhance the barrier property of the base paper against organic solvents, and as a result, impregnated the base paper with a fluororesin-compatible resin in combination with the fluororesin. As a result, the present invention has been completed. That is, the present invention relates to a base for adhesive paper, wherein 2 to 15% by weight of a nonionic or anionic water-soluble polyurethane resin and 0.02 to 0.3% by weight of a fluororesin are impregnated with respect to the weight of the paper. It is paper. Further, the present invention is an adhesive paper characterized in that an adhesive is applied to one surface of the base paper for an adhesive paper and a release agent is applied to the other surface.
【0012】[0012]
【発明の実施の形態】本発明に用いられる原紙は特に限
定はしないが、原料として例えば木材パルプ、マニラ
麻、ビニロン等が挙げられる。原紙の坪量は20〜10
0g/m2、好ましくは30〜60g/m2である。DESCRIPTION OF THE PREFERRED EMBODIMENTS The base paper used in the present invention is not particularly limited, but examples of raw materials include wood pulp, manila hemp, vinylon and the like. Base paper weight is 20-10
0 g / m 2, preferably 30 to 60 g / m 2.
【0013】本発明では紙に高い溶剤バリアー性を付与
するために、水溶性ポリウレタン樹脂とフッ素系樹脂を
用いる。In the present invention, a water-soluble polyurethane resin and a fluororesin are used in order to impart high solvent barrier properties to paper.
【0014】水溶性ポリウレタン樹脂単独によって得ら
れる有機溶剤バリアー性は実用的には充分なレベルでは
なく、フッ素系樹脂と併用することによって初めて必要
充分な有機溶剤バリアー性が得られる。また、ポリウレ
タン樹脂がフッ素系樹脂の紙へのバインダーとして機能
する。The barrier property of an organic solvent obtained by using a water-soluble polyurethane resin alone is not practically sufficient, and a necessary and sufficient organic solvent barrier property can be obtained only when used in combination with a fluorine-based resin. Further, the polyurethane resin functions as a binder for the fluororesin to the paper.
【0015】ポリウレタン樹脂としては、フッ素系樹脂
のイオン性と合わせたイオン性のものが用いられる。即
ちノニオン性フッ素樹脂にはノニオン性ポリウレタン樹
脂を、アニオン性フッ素樹脂にはアニオン性ポリウレタ
ン樹脂を用いる。アニオン性ポリウレタン樹脂としては
インプラニールDLP(DIC社製)等が挙げられる。
ノニオン性ポリウレタン樹脂としてはヨドゾールRC−
31(カネボウNSC社製)等などが挙げられる。As the polyurethane resin, an ionic resin in combination with the ionicity of the fluorine resin is used. That is, a nonionic polyurethane resin is used for the nonionic fluororesin, and an anionic polyurethane resin is used for the anionic fluororesin. Examples of the anionic polyurethane resin include Impranil DLP (manufactured by DIC).
Nonionic polyurethane resin is iodosol RC-
31 (manufactured by Kanebo NSC) and the like.
【0016】ポリウレタン樹脂は紙重量に対して2〜1
5重量%含浸される。これ以下であると溶剤バリアー性
が低く、15重量%を越えても性能の向上は望めない。The polyurethane resin is 2-1 to the weight of the paper.
5% by weight impregnation. If the amount is less than this, the solvent barrier property is low.
【0017】フッ素系樹脂としては、ディックガードF
−18(ノニオン性、DIC社製)、アサヒガード55
0(ノニオン性、明成化学社製)またはアサヒガード5
30(アニオン性、明成化学社製)等が挙げられる。As the fluorine resin, Dick Guard F
-18 (nonionic, manufactured by DIC), Asahi Guard 55
0 (nonionic, manufactured by Meisei Chemical Co., Ltd.) or Asahi Guard 5
30 (anionic, manufactured by Meisei Chemical Co., Ltd.) and the like.
【0018】フッ素系樹脂の固形分含浸量は紙重量に対
して0.02〜0.3重量%が好ましい。これ以下では
水溶性ウレタン樹脂と併用しても有機溶剤バリアー性が
充分ではなく、この量を過ぎるとバリアー性は横這いに
なる。The solids content of the fluororesin is preferably 0.02 to 0.3% by weight based on the weight of the paper. Below this, even when used in combination with a water-soluble urethane resin, the barrier property of the organic solvent is not sufficient, and when the amount exceeds this amount, the barrier property becomes flat.
【0019】ポリウレタン樹脂とフッ素系樹脂は混合水
溶液で基紙に含浸される。含浸の方法には特に限定され
ないが、抄紙機におけるサイズプレス含浸であっても、
含浸機で含浸してもどちらでも良い。The polyurethane resin and the fluororesin are impregnated into the base paper with a mixed aqueous solution. Although there is no particular limitation on the method of impregnation, even in the case of size press impregnation in a paper machine,
It may be impregnated with an impregnating machine or both.
【0020】粘着加工は常法で行われ、糊、剥離剤の順
か、剥離剤、糊の順で塗工、乾燥される。一例を示すな
らば、基紙の片面にナイフロールコーターにて糊を塗布
し、熱風ドライヤーで乾燥したのち、ロールコーターで
剥離剤を塗工、乾燥して巻き取る方法がある。The adhesive processing is carried out by a conventional method, and is applied and dried in the order of the paste and the release agent, or in the order of the release agent and the paste. As an example, there is a method in which glue is applied to one side of a base paper with a knife roll coater, dried with a hot air drier, then coated with a release agent with a roll coater, dried and wound up.
【0021】本発明の粘着紙を図1に示す。樹脂が含浸
された原紙の一面に粘着剤が塗布され、その反対面に剥
離剤が塗工されたものである。FIG. 1 shows the adhesive paper of the present invention. An adhesive is applied to one side of the base paper impregnated with the resin, and a release agent is applied to the other side.
【0022】[0022]
【実施例】以下に、和紙粘着テープ用基紙に応用した実
施例および比較例を挙げて本発明を具体的に説明する
が、勿論本発明はこれによって限定されるものではな
い。なお、実施例および比較例で示す%は全て重量%を
意味する。Hereinafter, the present invention will be described in detail with reference to Examples and Comparative Examples applied to a base paper for an adhesive tape of Japanese paper, but of course, the present invention is not limited thereto. The percentages shown in the examples and comparative examples all mean% by weight.
【0023】実施例1 下記原料配合のスラリーより円網ヤンキー抄紙機により
40g/m2の粘着紙用基紙を抄造した。その際、フッ
素系樹脂を含むポリウレタン樹脂をサイズプレスにて含
浸し、アフタードライヤーで乾燥した。 原料パルプ ──────────────────────────────────── NBKP(CSF:カナディアンスタンダードフリーネス450ml)65% マニラ麻S2L(CSF450ml) 7% ビニロン繊維(VPB103×5mm、クラレ社製) 20% ビニロン繊維(VPB107ー1×3mm、クラレ社製) 8% ─────────────────────────────────── 内添薬品 ──────────────────────────────────── 湿潤紙力増強剤 ユーラミンP5600(三井東圧化学社製) 対パルプ0.5% 紙力剤 ポリストロン194(荒川化学社製) 対パルプ0.5% ──────────────────────────────────── サイズプレス含浸樹脂 ──────────────────────────────────── アサヒガード530(アニオン性、明成化学社製) 対紙0.02% インプラニールDLP(アニオン性、DIC社製) 対紙 2% ────────────────────────────────────Example 1 A base paper for pressure-sensitive adhesive paper of 40 g / m 2 was produced from a slurry having the following raw material composition using a circular net Yankee paper machine. At that time, a polyurethane resin containing a fluorine-based resin was impregnated with a size press and dried with an afterdryer. Raw material pulp N NBKP (CSF: Canadian Standard Freeness 450ml) 65% Manila Hemp S2L (CSF 450 ml) 7% Vinylon fiber (VPB103 × 5 mm, manufactured by Kuraray) 20% Vinylon fiber (VPB107-1 × 3 mm, manufactured by Kuraray) 8% ──────────────── ─────────────────── Internal additives ──────────────────────────── ──────── Wet Paper Strengthener Euramine P5600 (Mitsui Toatsu Chemicals) vs. Pulp 0.5% Paper Strengthener Poristron 194 (Arakawa Chemical Co.) vs. Pulp 0.5% ─── ───────────────────────────────── Size press Immersion resin ──────────────────────────────────── Asahi Guard 530 (anionic, manufactured by Meisei Chemical Co., Ltd.) 0.02% for paper Impranil DLP (anionic, manufactured by DIC) 2% for paper ───────
【0024】実施例2 サイズプレス含浸する樹脂を下記のとおりとした以外は
実施例1と同様にして粘着紙用基紙を得た。 ──────────────────────────────────── アサヒガード550(ノニオン性、明成化学社製) 対紙0.02% ヨドゾールRC−31(ノニオン性、カネボウNSC社製)対紙 2% ────────────────────────────────────Example 2 A pressure-sensitive adhesive base paper was obtained in the same manner as in Example 1 except that the resin to be impregnated with the size press was changed as follows. ──────────────────────────────────── Asahi Guard 550 (nonionic, manufactured by Meisei Chemical Co., Ltd.) 0.02% Iodosol RC-31 (nonionic, manufactured by Kanebo NSC) vs. paper 2% ───────
【0025】実施例3 サイズプレス含浸する樹脂を下記のとおりとした以外は
実施例1と同様にして粘着紙用基紙を得た。 ──────────────────────────────────── アサヒガード530(アニオン性、明成化学社製) 対紙0.02% インプラニールDLP(アニオン性、DIC社製) 対紙15% ────────────────────────────────────Example 3 A pressure-sensitive adhesive base paper was obtained in the same manner as in Example 1 except that the resin to be impregnated with the size press was changed as follows. ──────────────────────────────────── Asahi Guard 530 (anionic, manufactured by Meisei Chemical Co., Ltd.) 0.02% Impranyl DLP (anionic, DIC) 15% against paper ─────
【0026】比較例1 サイズプレス含浸をしなかった以外は実施例1と同様に
して粘着紙用基紙を得た。Comparative Example 1 A base paper for an adhesive paper was obtained in the same manner as in Example 1 except that the size press was not impregnated.
【0027】比較例2 サイズプレス含浸する樹脂を下記のとおりとした以外は
実施例1と同様にして粘着紙用基紙を得た。 ──────────────────────────────────── インプラニールDLP(アニオン性、DIC社製) 対紙15% ────────────────────────────────────Comparative Example 2 A pressure-sensitive adhesive base paper was obtained in the same manner as in Example 1 except that the resin to be impregnated with the size press was changed as follows. ──────────────────────────────────── Impranyl DLP (anionic, DIC) vs. paper 15 % ────────────────────────────────────
【0028】比較例3 サイズプレス含浸するフッ素系樹脂を下記のとおりとし
た以外は実施例1と同様にして粘着紙用基紙を得た。 ──────────────────────────────────── アサヒガード550(ノニオン性、明成化学社製) 対紙0.3% ────────────────────────────────────Comparative Example 3 A base paper for an adhesive paper was obtained in the same manner as in Example 1 except that the fluororesin to be impregnated with the size press was changed as follows. ──────────────────────────────────── Asahi Guard 550 (nonionic, manufactured by Meisei Chemical Co., Ltd.) 0.3% ────────────────────────────────────
【0029】比較例4 サイズプレス含浸する樹脂を下記のとおりとした以外は
実施例1と同様にして粘着紙用基紙を得た。 ──────────────────────────────────── アサヒガード530(アニオン性、明成化学社製) 対紙0.01% インプラニールDLP(アニオン性、DIC社製) 対紙15% ────────────────────────────────────Comparative Example 4 A pressure-sensitive adhesive base paper was obtained in the same manner as in Example 1 except that the resin to be impregnated with the size press was changed as follows. ──────────────────────────────────── Asahi Guard 530 (anionic, manufactured by Meisei Chemical Co., Ltd.) 0.01% Impranyl DLP (anionic, DIC) 15% against paper ─────
【0030】比較例5 サイズプレス含浸する樹脂を下記のとおりとした以外は
実施例1と同様にして粘着紙用基紙を得た。 ──────────────────────────────────── アサヒガード550(ノニオン性、明成化学社製) 対紙0.02% インプラニールDLP(アニオン性、DIC社製) 対紙15% ────────────────────────────────────Comparative Example 5 A base paper for an adhesive paper was obtained in the same manner as in Example 1 except that the resin to be impregnated with the size press was changed as follows. ──────────────────────────────────── Asahi Guard 550 (nonionic, manufactured by Meisei Chemical Co., Ltd.) 0.02% Impranyl DLP (anionic, DIC) 15% against paper ─────
【0031】[評価法] [溶剤バリアー性評価試験]溶剤バリアー性評価法につ
いて記す。表1に示す薬品を表中の体積配合比で混合し
て試験液を作成した。[Evaluation Method] [Solvent Barrier Property Evaluation Test] The solvent barrier property evaluation method will be described. Test solutions were prepared by mixing the chemicals shown in Table 1 at the volume ratios shown in the table.
【0032】[0032]
【表1】 [Table 1]
【0033】試験片に上記試験液を静かに滴下し、黒い
斑点が生じた場合不合格とする。浸透しない液滴の最高
耐油度をその試験片の耐油度とした。耐油度が大きいほ
ど耐溶剤性が高いことになる。実用的耐油度は10以上
が必要となる。The above test solution was gently dropped onto a test piece, and a test was rejected if black spots were formed. The highest oil resistance of a droplet that did not penetrate was defined as the oil resistance of the test piece. The higher the oil resistance, the higher the solvent resistance. A practical oil resistance of 10 or more is required.
【0034】[評価結果]実施例1〜3、比較例1〜5
で得られた粘着紙用基紙の溶剤バリアー性の評価を行っ
た。結果を表2に示す。表2から明らかなように、実施
例1〜3に示す本発明の粘着紙用基紙は耐油性が優れ、
即ち溶剤バリアー性が優れていることがわかる。[Evaluation Results] Examples 1 to 3 and Comparative Examples 1 to 5
Was evaluated for the solvent barrier property of the adhesive paper base paper obtained in the above. Table 2 shows the results. As is clear from Table 2, the adhesive paper base papers of the present invention shown in Examples 1 to 3 have excellent oil resistance,
That is, it is understood that the solvent barrier property is excellent.
【0035】これに対して、フッ素系樹脂を含浸してい
ない比較例1および2は溶剤バリアー性に劣る。また、
フッ素系樹脂のみ含浸した比較例3も溶剤バリアー性が
劣る。フッ素系樹脂とポリウレタン樹脂を併用してもフ
ッ素系樹脂含浸量が0.01%である比較例4は溶剤バ
リアー性が劣る。フッ素系樹脂とポリウレタン樹脂のイ
オン性を合わせなかった比較例5においても溶剤バリア
ー性が劣ることがわかる。On the other hand, Comparative Examples 1 and 2, which were not impregnated with the fluororesin, had poor solvent barrier properties. Also,
Comparative Example 3 impregnated only with the fluororesin also has poor solvent barrier properties. In Comparative Example 4 in which the fluorine resin impregnation amount is 0.01% even when the fluorine resin and the polyurethane resin are used in combination, the solvent barrier property is inferior. It can be seen that even in Comparative Example 5 in which the ionic properties of the fluorine resin and the polyurethane resin were not matched, the solvent barrier properties were poor.
【0036】[0036]
【表2】 [Table 2]
【0037】[0037]
【発明の効果】以上のように、本発明の粘着紙用基紙は
溶剤バリアー性に優れ、剥離剤が基紙を裏抜けすること
なく均一に塗布されるため、結果的に品質の安定した粘
着紙を製造することが可能となる。As described above, the adhesive paper base paper of the present invention has excellent solvent barrier properties, and the release agent is uniformly applied without passing through the base paper, resulting in stable quality. It becomes possible to manufacture adhesive paper.
【0038】[0038]
【図1】断面図FIG. 1 is a sectional view
1:粘着剤層 2:アンダーコートされた基紙 3:剥離剤層 1: adhesive layer 2: undercoated base paper 3: release agent layer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 武内 敏之 東京都江東区東雲1丁目10番6号 新王子 製紙株式会社東雲研究センター内 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Toshiyuki Takeuchi 1-10-6 Shinonome, Koto-ku, Tokyo Shin-Oji Paper Co., Ltd. Shinonome Research Center
Claims (2)
ン性の水溶性ポリウレタン樹脂2〜15重量%およびフ
ッ素系樹脂0.02〜0.3重量%を含浸したことを特
徴とする粘着紙用基紙。1. A pressure-sensitive adhesive paper base impregnated with 2 to 15% by weight of a nonionic or anionic water-soluble polyurethane resin and 0.02 to 0.3% by weight of a fluororesin based on the weight of a base paper. paper.
を、反対面に剥離剤を塗布したことを特徴とする粘着
紙。2. The adhesive paper according to claim 1, wherein an adhesive is applied to one side of the adhesive paper base paper and a release agent is applied to the other side.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17334996A JPH1018196A (en) | 1996-07-03 | 1996-07-03 | Base paper for adhesive paper and adhesive paper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17334996A JPH1018196A (en) | 1996-07-03 | 1996-07-03 | Base paper for adhesive paper and adhesive paper |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH1018196A true JPH1018196A (en) | 1998-01-20 |
Family
ID=15958775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17334996A Pending JPH1018196A (en) | 1996-07-03 | 1996-07-03 | Base paper for adhesive paper and adhesive paper |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH1018196A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010203006A (en) * | 2009-03-04 | 2010-09-16 | Kohjin Co Ltd | Impregnation-coating type japanese paper tape substrate |
-
1996
- 1996-07-03 JP JP17334996A patent/JPH1018196A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010203006A (en) * | 2009-03-04 | 2010-09-16 | Kohjin Co Ltd | Impregnation-coating type japanese paper tape substrate |
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