JPH0780373B2 - Magnetic recording paper - Google Patents
Magnetic recording paperInfo
- Publication number
- JPH0780373B2 JPH0780373B2 JP62106278A JP10627887A JPH0780373B2 JP H0780373 B2 JPH0780373 B2 JP H0780373B2 JP 62106278 A JP62106278 A JP 62106278A JP 10627887 A JP10627887 A JP 10627887A JP H0780373 B2 JPH0780373 B2 JP H0780373B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic recording
- aluminum
- white pigment
- coating layer
- recording layer
- 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.)
- Expired - Lifetime
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 49
- 229910052782 aluminium Inorganic materials 0.000 claims description 45
- 239000010410 layer Substances 0.000 claims description 37
- 239000011247 coating layer Substances 0.000 claims description 32
- 239000012463 white pigment Substances 0.000 claims description 30
- 239000003973 paint Substances 0.000 claims description 22
- 239000000853 adhesive Substances 0.000 claims description 18
- 230000001070 adhesive effect Effects 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000000576 coating method Methods 0.000 description 21
- 239000011248 coating agent Substances 0.000 description 17
- 239000008199 coating composition Substances 0.000 description 10
- 239000000049 pigment Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 description 7
- 239000004816 latex Substances 0.000 description 7
- 229920000126 latex Polymers 0.000 description 7
- 229920002451 polyvinyl alcohol Polymers 0.000 description 7
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 6
- 239000002270 dispersing agent Substances 0.000 description 6
- 239000000839 emulsion Substances 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 239000005018 casein Substances 0.000 description 5
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 5
- 235000021240 caseins Nutrition 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 239000006247 magnetic powder Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 229920003048 styrene butadiene rubber Polymers 0.000 description 4
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 239000002518 antifoaming agent Substances 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920001225 polyester resin Polymers 0.000 description 3
- 239000004645 polyester resin Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N vinyl-ethylene Natural products C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 108010010803 Gelatin Proteins 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 108010073771 Soybean Proteins Proteins 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229920000159 gelatin Polymers 0.000 description 2
- 239000008273 gelatin Substances 0.000 description 2
- 235000019322 gelatine Nutrition 0.000 description 2
- 235000011852 gelatine desserts Nutrition 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 2
- 235000019832 sodium triphosphate Nutrition 0.000 description 2
- 235000019710 soybean protein Nutrition 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 239000004034 viscosity adjusting agent Substances 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 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
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical group [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical group O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000013022 formulation composition Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000001254 oxidized starch Substances 0.000 description 1
- 235000013808 oxidized starch Nutrition 0.000 description 1
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical group [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- -1 satin white Chemical compound 0.000 description 1
- JMHCCAYJTTWMCX-QWPJCUCISA-M sodium;(2s)-2-amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propanoate;pentahydrate Chemical compound O.O.O.O.O.[Na+].IC1=CC(C[C@H](N)C([O-])=O)=CC(I)=C1OC1=CC(I)=C(O)C(I)=C1 JMHCCAYJTTWMCX-QWPJCUCISA-M 0.000 description 1
- 235000015096 spirit Nutrition 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002562 thickening agent 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
- 239000008096 xylene Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
Landscapes
- Credit Cards Or The Like (AREA)
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
Description
【発明の詳細な説明】 本発明は、磁気記録紙に関するものである。特に、スト
ライプ状の磁気記録層が設けられた磁気記録層面の隠蔽
性、平滑性が優れ、磁気記録層面に可視情報を印刷する
ことが出来る磁気記録紙を提供することを目的とするも
のである。The present invention relates to a magnetic recording paper. In particular, it is an object of the present invention to provide a magnetic recording paper which has excellent concealing property and smoothness of a magnetic recording layer surface provided with a stripe-shaped magnetic recording layer and which can print visible information on the magnetic recording layer surface. .
ストライプ状の磁気記録層が設けられた磁気記録層紙
は、磁性粉末による茶褐色、暗黒色等の色調によつて、
ストライプ状の磁気記録層上には、可視情報を印刷する
ことが出来ず、磁気記録層面への可視情報の盛込みに制
約を受けている。また、ストライプ状の磁気記録層によ
り磁気ヘツド殿接触によるスペースロスが生じ平滑生の
良い磁気記録紙が要求されている。The magnetic recording layer paper provided with the stripe-shaped magnetic recording layer, due to the color tone of dark brown, dark black, etc. due to the magnetic powder,
Visible information cannot be printed on the striped magnetic recording layer, and there is a restriction on the incorporation of visible information on the magnetic recording layer surface. Further, there is a demand for magnetic recording paper with good smoothness due to space loss due to contact with the magnetic head due to the stripe-shaped magnetic recording layer.
本発明は、ストライプ状の磁気記録層面上への可視情報
の記録の可能性について検討した結果、比較的塗被量の
少ないアルミ塗被量と白色顔料塗被層とを設けるだけで
磁気記録層の茶褐色を隠蔽することが出来、同時に、平
滑性が優れ、磁気記録特性を何等阻害することなく、し
かも、自動販売機を想定した発券テストにも何等支障の
ないことを見出し、完成させたものである。The present invention has examined the possibility of recording visible information on the surface of a magnetic recording layer having a stripe shape. As a result, the magnetic recording layer can be formed by simply providing an aluminum coating amount and a white pigment coating layer having a relatively small coating amount. It has been completed and found that it can conceal the dark brown color, at the same time, has excellent smoothness, does not hinder magnetic recording characteristics at all, and does not hinder the ticketing test assuming an automatic vending machine. Is.
すなわち、本発明は、原紙上にストライプ状の磁気記録
層が設けられた磁気記録紙において、該磁気記録層面上
に、アルミニユーム粉末と接着剤とを主成分とする水性
アルミ塗料を塗被し、アルミ塗被層を設け、更に、該ア
ルミ塗被層上に、白色顔料と接着剤とを主成分とする水
性白色顔料塗料を塗被し、白色度73％以上の白色顔料塗
被層を設けたことを特徴とする磁気記録紙である。That is, the present invention is a magnetic recording paper provided with a stripe-shaped magnetic recording layer on a base paper, the magnetic recording layer surface, a water-based aluminum coating containing aluminum powder and an adhesive as a main component is coated, An aluminum coating layer is provided, and an aqueous white pigment paint containing a white pigment and an adhesive as a main component is coated on the aluminum coating layer to provide a white pigment coating layer having a whiteness of 73% or more. It is a magnetic recording paper characterized by the fact.
以下、本発明の技術的事項について詳述する。Hereinafter, technical matters of the present invention will be described in detail.
先づ、原紙としては、坪量40〜300g/m2の上質紙、加工
原紙等を使用することが出来るが、特に限定はされな
い。First, as the base paper, high-quality paper having a basis weight of 40 to 300 g / m 2 , processed base paper and the like can be used, but the base paper is not particularly limited.
原紙上に設けられるストライプ状の磁気記録層は、熱転
写フイルム方式、印刷方式あるいは磁性塗料の塗被方式
等でもつて設けられる。その一例として磁性塗料を用い
る塗被方式について記すと次の通りである。The striped magnetic recording layer provided on the base paper is provided by a thermal transfer film method, a printing method, a magnetic paint coating method, or the like. A coating method using a magnetic paint will be described below as an example.
すなわち、磁性粉末と接着剤とを主成分とし、磁性粉末
としては、γ−酸化鉄、コバルトで変性したγ−酸化
鉄、酸化クローム、バリウムフエライト等を使用するこ
とが出来る。また、接着剤としては、ポリビニルアルコ
ールのような水溶性接着剤やスチレン・ブタジエン共重
合体、メチルメタアクリレート・ブタジエン共重合体、
スチレン・ブタジエン・メチルメタアクリレート共重合
体、アクリル系樹脂、酢酸ビニル系樹脂等のラテツクス
エマルジヨンあるいはポリウレタン樹脂、塩化ビニル樹
脂、ポリエステル樹脂等を使用することが出来る。そし
て、これら磁性粉末と接着剤とを主成分とする磁性塗料
は、水性系あるいは有機溶剤系のいづれかで調製され供
されるが、水性系の方が経済的で好ましい。有機溶剤と
しては、トルエン、キシレン、ブタノール等を使用する
ことが出来る。That is, it is possible to use γ-iron oxide, γ-iron oxide modified with cobalt, chrome oxide, barium ferrite, etc. as the magnetic powder, which contains magnetic powder and an adhesive as main components. As the adhesive, a water-soluble adhesive such as polyvinyl alcohol, a styrene / butadiene copolymer, a methylmethacrylate / butadiene copolymer,
A latex emulsion such as a styrene / butadiene / methyl methacrylate copolymer, an acrylic resin or a vinyl acetate resin, or a polyurethane resin, a vinyl chloride resin or a polyester resin can be used. The magnetic paint containing the magnetic powder and the adhesive as the main components is prepared and provided in either an aqueous system or an organic solvent system, but the aqueous system is more economical and preferable. As the organic solvent, toluene, xylene, butanol or the like can be used.
かくして調製される磁性塗料は、ロールコーター、グラ
ビアコーター、コンマコーター、ダイコーター、ナイフ
コーター等で原紙上にストライプ状に塗被、乾燥され、
ストライプ状の磁気記録層は設けられる。磁気記録層の
ストライプは、４〜20mm巾で、適宜間隔を置いて設けら
れる。The magnetic coating thus prepared is coated in a striped pattern on the base paper with a roll coater, a gravure coater, a comma coater, a die coater, a knife coater, etc., and dried,
A stripe-shaped magnetic recording layer is provided. The stripes of the magnetic recording layer are 4 to 20 mm wide and are provided at appropriate intervals.
本発明においては、ストライプ状の磁気記録層が設けら
れた磁気記録層面上には、先ず、アルミニユーム粉末と
接着剤とを主成分とする水性アルミ塗料を塗被、乾燥
し、アルミ塗被層を設ける。In the present invention, on the magnetic recording layer surface provided with the stripe-shaped magnetic recording layer, first, a water-based aluminum paint mainly containing aluminum powder and an adhesive is applied and dried to form an aluminum coating layer. Set up.
磁気記録層面上にアルミ塗被層を設けるにあたり調製さ
れる水性アルミ塗料に供されるアルミニユーム粉末は、
酸化され易く、金属光沢を消失し易いためにペースト状
に加工されたアルミペースト顔料が使用される。そし
て、アルミペースト顔料には、リーフイングタイプとノ
ンリーフイングタイプがあるが、本発明ではいずれも使
用することが出来る。その組成は、通常ステアリン酸、
ミネラルスピリツト等の添加剤をアルミニユーム箔と共
にボールミル等の粉砕機により任意の粒径に加工され
る。Aluminum powder to be used in the water-based aluminum paint prepared for providing the aluminum coating layer on the magnetic recording layer surface,
An aluminum paste pigment processed into a paste is used because it is easily oxidized and loses metallic luster. The aluminum paste pigment includes a leafing type and a non-leafing type, and any of them can be used in the present invention. Its composition is usually stearic acid,
Additives such as mineral spirits and aluminum foil are processed into a desired particle size by a crusher such as a ball mill.
本発明の水性アルミ塗料は、このようなアルミペースト
顔料と接着剤とを主成分とし、この外に添加剤あるいは
塗料調整剤等を配合したものである。接着剤としては、
カゼイン、デンプン、ゼラチン、大豆蛋白、ポリビニル
アルコール等の水溶性接着剤やスチレン・ブタジエン共
重合体、スチレン・ブタジエン・メチルメタアクリレー
ト共重合体、アクリル系樹脂、酢酸ビニル樹脂、ポリエ
ステル樹脂等のラテツクスエマルジヨンあるいは合成樹
脂エマルジヨンを使用することが出来る。The water-based aluminum paint of the present invention contains such an aluminum paste pigment and an adhesive as main components, and an additive or a paint conditioner or the like is added thereto. As an adhesive,
Water-soluble adhesives such as casein, starch, gelatin, soybean protein, polyvinyl alcohol, etc., and styrene / butadiene copolymers, styrene / butadiene / methyl methacrylate copolymers, acrylic resins, vinyl acetate resins, polyester resins, etc. Emulsion or synthetic resin emulsion can be used.
添加剤としては、一般のクレーコーテイング用水性顔料
塗料に使用されている増粘剤、分散剤、消泡剤、潤滑
剤、着色剤等を使用することが出来、いずれも必要に応
じて使用すれば良い。As the additive, a thickener, a dispersant, an antifoaming agent, a lubricant, a colorant, etc., which are used in a general water-based pigment coating for clay coating, can be used, and any of them may be used as necessary. Good.
アルミペースト顔料、接着剤、その他添加剤等よりなる
水性アルミ塗料は、pHを７の中性になるように調整する
ことが肝要である、しかし、酸性又はアルカリ性になる
場合には、ポリビニルアルコールやカゼイン等を添加し
て保護コロイドをつくつてからエマルジヨン類を添加す
れば中性にならなくても使用出来る。It is important to adjust the pH of the water-based aluminum paint consisting of aluminum paste pigments, adhesives, and other additives so that the pH becomes 7 neutral. However, when it becomes acidic or alkaline, polyvinyl alcohol or It can be used even if it does not become neutral by adding casein and the like to form a protective colloid and then adding emulsions.
このようなアルミペースト顔料および接着剤を主成分と
する水性アルミ顔料は、紙の水性コーテイング法におい
て通常使用されている各種ミキサーで充分に分散させて
調製される。その際、添加剤として、分散剤、滑剤、着
色剤、耐水化剤、消泡剤、塗料粘度調整剤等を適宜配合
すれば良い。Such an aluminum paste pigment and a water-based aluminum pigment containing an adhesive as a main component are prepared by sufficiently dispersing them in various mixers usually used in a water-based paper coating method. At that time, as an additive, a dispersant, a lubricant, a colorant, a water-proofing agent, a defoaming agent, a paint viscosity modifier, and the like may be appropriately added.
かくして調製された水性アルミ塗料は、エアーナイフコ
ーター、ブレードコーター、ロールコーター、グラビア
コーター等で原紙上に設けられた磁気記録層上に塗被、
乾燥され、アルミ塗被層は設けられる。そして、アルミ
塗被層は、磁気記録層の磁気特性を低下させないように
することが必要で、水性アルミ塗料の塗被量は、２〜10
g/cm2で、好ましくは３〜8g/m2で、磁性特性の低下は、
全く認められなかった。特に、本発明のアルミ塗被層の
場合には、比較的少量の塗被量でもつて磁気記録層の茶
褐色を隠蔽することが出来る。The thus-prepared water-based aluminum paint is coated on the magnetic recording layer provided on the base paper with an air knife coater, a blade coater, a roll coater, a gravure coater, or the like,
It is dried and the aluminum coating layer is applied. The aluminum coating layer is required not to deteriorate the magnetic characteristics of the magnetic recording layer, and the coating amount of the water-based aluminum coating material is 2 to 10
At g / cm 2 , preferably 3 to 8 g / m 2 , the deterioration of magnetic properties is
It was not recognized at all. In particular, in the case of the aluminum coating layer of the present invention, the brown color of the magnetic recording layer can be covered with a relatively small coating amount.
更に、本発明では、アルミ塗被層上には、白色顔料と接
着剤とを主成分とする水性白色顔料塗料を塗被、乾燥し
白色度73％以上の白色顔料塗被層を設けることにより隠
蔽性、平滑性が優れ、磁気記録層面に印刷を可能にした
磁気記録紙を得ることが出来る。Furthermore, in the present invention, by coating an aqueous white pigment coating material containing a white pigment and an adhesive as the main components on the aluminum coating layer, and drying to provide a white pigment coating layer having a whiteness of 73% or more. It is possible to obtain a magnetic recording paper that has excellent concealing properties and smoothness and that can be printed on the magnetic recording layer surface.
アルミ塗被層上に白色顔料塗被層を設けるにあたり調製
される水性白色顔料塗料に供される顔料としては、クレ
ー、炭酸カルシウム、水酸化アルミニウム、硫酸バニウ
ム、サチンホワイト、亜鉛華、アルミナゼオライト、プ
ラスチックピグメント等紙のコーテイングに通常使用さ
れているものでよい。一方、接着剤としては、カゼイ
ン、デンプン、ゼラチン、大豆蛋白、ポリビニルアルコ
ール等の水溶性接着剤やスチレン・ブタジエン共重合
体、スチレン・ブタジエン・メチルメタアクリレート共
重合体、アクリル系樹脂、酢酸ビニル樹脂、ポリエステ
ル樹脂等のラテツクスエマルジヨンあるいは合成樹脂エ
マルジヨンを使用することが出来る。The pigment used in the aqueous white pigment paint prepared in providing the white pigment coating layer on the aluminum coating layer, clay, calcium carbonate, aluminum hydroxide, vanium sulfate, satin white, zinc white, alumina zeolite, It may be one commonly used for coating paper such as plastic pigments. On the other hand, as the adhesive, water-soluble adhesives such as casein, starch, gelatin, soybean protein and polyvinyl alcohol, styrene / butadiene copolymer, styrene / butadiene / methyl methacrylate copolymer, acrylic resin, vinyl acetate resin. A latex emulsion such as a polyester resin or a synthetic resin emulsion can be used.
このような白色顔料と接着剤とを主成分とした水性白色
顔料塗料は、紙の水性コーテイング法において通常使用
されている各種ミキサーで充分に撹はん、分散させて調
製される。その際、助剤として、分散剤、滑剤、着色
剤、耐水化剤、消泡剤、塗料粘度調整剤等を適宜配合し
ても差し支えはない。Such an aqueous white pigment coating composition containing a white pigment and an adhesive as the main components is prepared by thoroughly stirring and dispersing it in various mixers that are usually used in the aqueous coating method for paper. At that time, as an auxiliary agent, a dispersant, a lubricant, a colorant, a water-proofing agent, an antifoaming agent, a paint viscosity modifier, etc. may be appropriately blended.
かくして調製された水性白色顔料塗料は、エアーナイフ
コーター、ブレードコーター、ロールコーター、グラビ
アコーター等でアルミ塗被層上に塗被、乾燥され、白色
顔料塗被層は設けられる。更に、白色顔料塗被層を平滑
にするためにスーパーキヤレンダー、グロスキヤレンダ
ー等で処理すると印刷性をより向上させることが出来、
効果的である。The thus-prepared aqueous white pigment coating composition is coated on an aluminum coating layer with an air knife coater, blade coater, roll coater, gravure coater, etc. and dried to form a white pigment coating layer. Furthermore, in order to make the white pigment coating layer smooth, it is possible to further improve the printability by treating with a super calender, a gloss calender, etc.
It is effective.
白色顔料塗被層は、磁気記録層の磁気特性を低下させな
いようにすることが必要で、水性白色顔料塗料の塗被量
は、アルミ塗被層との相乗効果により少なくすることが
出来、２〜8g/m2で、好ましくは３〜7g/m2で、充分効果
が得られる。The white pigment coating layer is required not to deteriorate the magnetic characteristics of the magnetic recording layer, and the coating amount of the aqueous white pigment coating material can be reduced by the synergistic effect with the aluminum coating layer. -8 g / m 2 , preferably 3-7 g / m 2 is sufficient to obtain the effect.
本発明の磁気記録紙は、磁気記録層上に比較的塗被量の
少ないアルミ塗被層と白色度73％以上の白色顔料塗料塗
被層とを設けるだけで、その相乗効果によって、磁気記
録層の着色を隠蔽することが出来る。そして、磁気記録
層面上に可視情報の印刷を可能にし、記録情報量を多く
することが出来る。しかも、アルミ塗被層および白色顔
料塗被層とにより磁気記録層面の平滑性が改善され、磁
気ヘッドとのスペースロスがなく磁気出力特性には、全
く影響がなく、発券適性を有する磁気記録紙を得ること
が出来る。さらに、実施例によって本発明を説明する。The magnetic recording paper of the present invention has a relatively small coating amount on the magnetic recording layer and a white pigment paint coating layer having a whiteness of 73% or more. It is possible to hide the coloring of the layer. The visible information can be printed on the surface of the magnetic recording layer, and the amount of recorded information can be increased. Moreover, the smoothness of the magnetic recording layer surface is improved by the aluminum coating layer and the white pigment coating layer, there is no space loss with the magnetic head, there is no influence on the magnetic output characteristics, and the magnetic recording paper is suitable for ticketing. Can be obtained. Furthermore, the present invention will be described with reference to examples.
実施例１ 磁気塗料配合組成 重量部 γ−酸化鉄 100 ポリビニルアルコール 30 スチレン・ブタジエンラテツクス 20 メラミン・ホルムアルデヒド樹脂 ５ 水性アルミ塗料配合組成 重量部 アルミペーストAW−600（ノンリーフイングタイプ）100 ポリビニールアルコール 20 スチレン・ブタジエンラテツクス 50 分散剤 ３ 水性白色顔料塗料配合組成 重量部 酸化チタン 100 トリポリリン酸ソーダ 0.3 酸化デンプン 10 カルボキシ変性メチルメタアクリレート・ブタジエンラ
テツクス 20 上記磁気塗料配合組成で水性磁気塗料を調製し、坪量15
7g/m2の加工原紙に巾6.5mm、間隔54mmでストライプ状に
塗被し、永久磁石で配向後乾燥し、ストライプ状の磁気
記録層を設けた。次いで、上記水性アルミ塗料配合組成
の水性アルミ塗料を調製し、磁気記録層面上に塗被、乾
燥し、塗被量が3g/m2のアルミ塗被層を設けた。更に、
上記水性白色顔料塗料配合組成の水性白色顔料塗料を調
製し、アルミ塗被層上に塗被、乾燥し、塗被量が5g/m2
の白色顔料塗被層を設け、本発明の磁気記録紙を得た。Example 1 Magnetic coating compound composition by weight γ-iron oxide 100 Polyvinyl alcohol 30 Styrene / butadiene latex 20 Melamine / formaldehyde resin 5 Water-based aluminum coating composition composition by weight Aluminum paste AW-600 (non-leafing type) 100 Polyvinyl alcohol 20 Styrene / Butadiene Latex 50 Dispersant 3 Aqueous White Pigment Coating Composition Weight part Titanium oxide 100 Sodium tripolyphosphate 0.3 Oxidized starch 10 Carboxy-modified methyl methacrylate / butadiene latex 20 Aqueous magnetic coating composition is prepared with the above magnetic coating composition, Basis weight 15
A 7 g / m 2 processed base paper was coated in a stripe shape with a width of 6.5 mm and an interval of 54 mm, oriented with a permanent magnet and dried to form a stripe-shaped magnetic recording layer. Next, an aqueous aluminum paint having the above composition of the aqueous aluminum paint was prepared, coated on the surface of the magnetic recording layer and dried to form an aluminum coating layer having a coating amount of 3 g / m 2 . Furthermore,
The aqueous white pigment paint formulation composition An aqueous white pigment paint, coated on the aluminum coating layer, dried, coated amount 5 g / m 2
A white pigment coating layer was provided to obtain a magnetic recording paper of the present invention.
実施例２ 水性アルミ塗料配合組成を下記に変へた以外は実施例１
と同様にし、塗被量が5g/m2のアルミ塗被層および塗被
量が2g/m2の白色顔料塗被層を設け、本発明の磁気記録
紙を得た。Example 2 Example 1 except that the composition of the water-based aluminum coating composition was changed to the following.
In the same manner as, laydown an aluminum coating layer and a coverage of from 5 g / m 2 is provided with a white pigment coated layer of 2 g / m 2, to obtain a magnetic recording sheet of the present invention.
水性アルミ塗料配合組成 重量部 アルミペースト0500M（リーフイングタイプ） 100 分散剤 ３ カゼイン 10 アンモニア １ カルボキシ変性メチルメタアクリレート・ブタジエンラ
テツクス 50 実施例３ 実施例１と同様にし、下記水性アルミ塗料配合組成およ
び水性白色顔料塗料配合組成で塗被量が、8g/m2のアル
ミ塗被層および塗被量が、5g/m2の白色顔料塗被層を設
け、本発明の磁気記録紙を得た。Composition of water-based aluminum paint Part by weight Aluminum paste 0500M (leafing type) 100 Dispersant 3 Casein 10 Ammonia 1 Carboxy-modified methylmethacrylate-butadiene-latex 50 Example 3 Same as Example 1 and the following water-based aluminum coating composition and laydown with aqueous white pigment coating formulation composition, aluminum coating layer and a coverage of from 8 g / m 2 is provided with a white pigment coated layer of 5 g / m 2, to obtain a magnetic recording sheet of the present invention.
水性アルミ塗料配合組成 重量部 アルミペーストAW−100（ノンリーフイングタイプ）100 分散剤 ５ ポリビニルアルコール ３ ソープレスアクリルエマルジヨン 60 水性白色顔料塗被組成配合 重量部 カオリン 75 炭酸カリシウム 25 トリポリリン酸ソーダ 0.3 カゼイン 7 アンモニア 0.7 スチレン・ブタジエンラテツクス 16 比較例１ 実施例１において、磁気記録層およびアルミ塗被層を設
けただけの磁気記録紙を比較用とした。Composition of water-based aluminum paint Part by weight Aluminum paste AW-100 (non-leafing type) 100 Dispersant 5 Polyvinyl alcohol 3 Sopress acrylic emulgion 60 Water-based white pigment coating composition Part by weight Kaolin 75 Ca carbonate 25 Sodium tripolyphosphate 0.3 Casein 7 Ammonia 0.7 Styrene-Butadiene Latex 16 Comparative Example 1 In Example 1, a magnetic recording paper provided with only a magnetic recording layer and an aluminum coating layer was used for comparison.
比較例２ 実施例１において、磁気記録層を設けただけの磁気記録
紙を比較用とした。Comparative Example 2 In Example 1, the magnetic recording paper only provided with the magnetic recording layer was used for comparison.
各実施例および比較例で得られた磁気記録紙について品
質試験を行なった。品質試験の結果は、次表の通りで、
本発明の磁気記録紙は、磁気記録層上にアルミ塗被層お
よび白色顔料塗被層を設けても磁気特性を全く損なうこ
となく、隠蔽性の優れた白色度73％以上の白色度の高い
磁気記録層面を得ることが出来、印刷性を付与すること
が出来た。そして、発券適性にも何等支障がなく、本発
明の磁気記録紙は、満足の行くものであることが判る。A quality test was conducted on the magnetic recording papers obtained in the respective examples and comparative examples. The results of the quality test are as shown in the table below.
The magnetic recording paper of the present invention has a high whiteness of 73% or more with excellent hiding power without impairing the magnetic properties even if an aluminum coating layer and a white pigment coating layer are provided on the magnetic recording layer. A magnetic recording layer surface could be obtained and printability could be imparted. Further, it can be seen that the ticketing suitability is not hindered and the magnetic recording paper of the present invention is satisfactory.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｇ１１Ｂ 5/80 (56)参考文献 特開 昭61−248228（ＪＰ，Ａ) 特開 昭53−118104（ＪＰ，Ａ) 特開 昭47−43998（ＪＰ，Ａ) 特開 昭56−134316（ＪＰ，Ａ) 特開 昭54−31707（ＪＰ，Ａ) 実開 昭57−49730（ＪＰ，Ｕ) 実開 昭53−68300（ＪＰ，Ｕ)─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location G11B 5/80 (56) References JP 61-248228 (JP, A) JP 53- 118104 (JP, A) JP 47-43998 (JP, A) JP 56-134316 (JP, A) JP 54-31707 (JP, A) Actual development 57-49730 (JP, U) Actual development Sho 53-68300 (JP, U)
Claims (1)
られた磁気記録紙において、該磁気記録層面上に、アル
ミニユーム粉末と接着剤とを主成分とする水性アルミ塗
料を塗被し、アルミ塗被層を設け、更に、該アルミ塗被
層上に、白色顔料と接着剤とを主成分とする水性白色顔
料塗料を塗被し、白色度73％以上の白色顔料塗被層を設
けたことを特徴とする磁気記録紙。1. A magnetic recording paper in which a striped magnetic recording layer is provided on a base paper, the surface of the magnetic recording layer is coated with a water-based aluminum paint containing aluminum powder and an adhesive as main components. A coating layer was provided, and further, an aqueous white pigment paint containing a white pigment and an adhesive as a main component was coated on the aluminum coating layer to provide a white pigment coating layer having a whiteness of 73% or more. Magnetic recording paper characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62106278A JPH0780373B2 (en) | 1987-05-01 | 1987-05-01 | Magnetic recording paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62106278A JPH0780373B2 (en) | 1987-05-01 | 1987-05-01 | Magnetic recording paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63273213A JPS63273213A (en) | 1988-11-10 |
| JPH0780373B2 true JPH0780373B2 (en) | 1995-08-30 |
Family
ID=14429613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62106278A Expired - Lifetime JPH0780373B2 (en) | 1987-05-01 | 1987-05-01 | Magnetic recording paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0780373B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53118104A (en) * | 1977-03-25 | 1978-10-16 | Dainippon Ink & Chemicals | Magnetic combination type recording material |
| JPS61248228A (en) * | 1985-04-26 | 1986-11-05 | Tokyo Jiki Insatsu Kk | Magnetic medium for magnetic embossing and magnetic card using said medium |
-
1987
- 1987-05-01 JP JP62106278A patent/JPH0780373B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63273213A (en) | 1988-11-10 |
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