JPH01249870A - Pigment ink for ball point pen - Google Patents
Pigment ink for ball point penInfo
- Publication number
- JPH01249870A JPH01249870A JP63077872A JP7787288A JPH01249870A JP H01249870 A JPH01249870 A JP H01249870A JP 63077872 A JP63077872 A JP 63077872A JP 7787288 A JP7787288 A JP 7787288A JP H01249870 A JPH01249870 A JP H01249870A
- Authority
- JP
- Japan
- Prior art keywords
- pigment
- ink
- water
- viscosity
- pigment ink
- 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
- 239000000049 pigment Substances 0.000 title claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229920001400 block copolymer Polymers 0.000 claims abstract description 7
- 239000003960 organic solvent Substances 0.000 claims abstract description 6
- 239000004034 viscosity adjusting agent Substances 0.000 claims description 9
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 7
- -1 polyoxyethylene Polymers 0.000 claims description 7
- 229920001451 polypropylene glycol Polymers 0.000 claims description 5
- 239000006185 dispersion Substances 0.000 abstract description 9
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 1
- 239000005977 Ethylene Substances 0.000 abstract 1
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 abstract 1
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 abstract 1
- 239000000976 ink Substances 0.000 description 47
- 239000002245 particle Substances 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- 229920003169 water-soluble polymer Polymers 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- UCNNJGDEJXIUCC-UHFFFAOYSA-L hydroxy(oxo)iron;iron Chemical compound [Fe].O[Fe]=O.O[Fe]=O UCNNJGDEJXIUCC-UHFFFAOYSA-L 0.000 description 2
- 239000001023 inorganic pigment Substances 0.000 description 2
- 239000012860 organic pigment Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229940058015 1,3-butylene glycol Drugs 0.000 description 1
- SBASXUCJHJRPEV-UHFFFAOYSA-N 2-(2-methoxyethoxy)ethanol Chemical compound COCCOCCO SBASXUCJHJRPEV-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- AFSUIUDHTDTBLP-UHFFFAOYSA-N CN1C(CCC1)=O.N(CCO)(CCO)CCO Chemical compound CN1C(CCC1)=O.N(CCO)(CCO)CCO AFSUIUDHTDTBLP-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229930182559 Natural dye Natural products 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000980 acid dye Substances 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 239000003429 antifungal agent Substances 0.000 description 1
- 229940121375 antifungal agent Drugs 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 239000000981 basic dye Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 235000019437 butane-1,3-diol Nutrition 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000983 mordant dye Substances 0.000 description 1
- 239000000978 natural dye Substances 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 125000000018 nitroso group Chemical group N(=O)* 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
- 239000001054 red pigment Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920001909 styrene-acrylic polymer Polymers 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- YODZTKMDCQEPHD-UHFFFAOYSA-N thiodiglycol Chemical compound OCCSCCO YODZTKMDCQEPHD-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 239000000984 vat dye Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はボールペン用顔料インキに関し、更に詳細には
、ボールペン用の油性インキと水性インキの特長を兼備
し、且つ、経時的に顔料分散安定性の低下の少ないボー
ルペン用顔料インキに関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a pigment ink for ballpoint pens, and more specifically, it has the features of both oil-based inks and water-based inks for ballpoint pens, and has stable pigment dispersion over time. This invention relates to a pigment ink for ballpoint pens that exhibits little deterioration in properties.
（従来の技術）
本願発明者らは、油性ボールペンインキの特長点である
、インキ残量の確認が可能であり、滲みがなく、滑らか
に筆記できる点と、水性ボールペンインキの特長点であ
る、筆跡の線割れやボテがなく彩度の高い筆跡が得られ
る点とを兼ね備えたボールペン用顔料インキとして、顔
料と水と水溶性有機溶剤とから少なくともなり、インキ
粘度を５０〜２０００ｃｐｓ （２５℃）の範囲とした
ボールペン用顔料インキにおいて、粘度調節剤を水溶性
高分子としたことを特徴とするボールペン用顔料インキ
を先に提案した。(Prior Art) The inventors of the present invention have discovered the advantages of oil-based ballpoint pen ink: it is possible to check the amount of ink remaining, there is no smearing, and it is possible to write smoothly, and the advantages of water-based ballpoint pen ink. As a pigment ink for ballpoint pens that provides highly saturated handwriting without line breakage or blurring, it is composed of at least pigment, water, and a water-soluble organic solvent, and has an ink viscosity of 50 to 2000 cps (25°C). We have previously proposed a pigment ink for ballpoint pens characterized by using a water-soluble polymer as the viscosity modifier.
（発明が解決しようとする課題）
本発明は前記した先の提案に係るボールペン用顔料イン
キの改良に係るものであって、粘度調節剤としてポリオ
キシエチレン・ポリオキシプロピレンブロック共重合体
を用いたボールペン用顔料インキに関するものである。(Problems to be Solved by the Invention) The present invention relates to the improvement of the pigment ink for ballpoint pens according to the above-mentioned proposal, in which a polyoxyethylene/polyoxypropylene block copolymer is used as a viscosity modifier. This invention relates to pigment ink for ballpoint pens.
即ち、粘度調節剤として水溶性高分子を用いたボールペ
ン用顔料インキは経時的に顔料の分散安定性が低下し、
顔料粒子同士の凝集が発生し、見掛けの顔料粒子が大き
くなる傾向が有り、顔料の沈降が生じるため、ペン先を
上向きで保管した場合筆跡が薄くなったり、ペン先を下
向きで保管した場合筆跡が濃くなったりするという変化
を起こしたり、著しくは筆記不能となったりするという
可能性を内在していた。That is, in pigment inks for ballpoint pens that use water-soluble polymers as viscosity modifiers, the dispersion stability of the pigment decreases over time.
Pigment particles tend to agglomerate and the apparent pigment particles tend to become larger, causing pigment sedimentation, which may result in thin handwriting if the pen tip is stored with the nib facing upwards, or blurred handwriting if the pen nib is stored with the nib facing downwards. There was an inherent possibility that the color would become darker or even become impossible to write on.
（課題を解決するための手段）
そこで、本発明者らは、上記顔料の分散安定性の低下を
防止することを本発明の目的とした。(Means for Solving the Problems) Therefore, the present inventors aimed at preventing the deterioration of the dispersion stability of the pigment described above.
即ち１本発明は、顔料と水と水溶性有機溶剤と粘度調節
剤とから少なくともなり、インキ粘度を５０〜２０００
ｃｐｓ （２５℃）の範囲トしたボールペン用顔料イン
キにおいて、粘度調節剤をポリオキシエチレン・ポリオ
キシプロピレンブロック共重合体としたことを特徴とす
るボールペン用顔料インキを要旨とするものである。That is, 1 the present invention comprises at least a pigment, water, a water-soluble organic solvent, and a viscosity modifier, and the ink viscosity is adjusted to 50 to 2000.
cps (25° C.) range, which is characterized in that the viscosity modifier is a polyoxyethylene/polyoxypropylene block copolymer.
以下、本発明の詳細な説明する。The present invention will be explained in detail below.
顔料は、着色剤として使用するものであり、特に限定さ
れることはなく、具体的にはアゾ系顔料、フタロシアニ
ン系顔料、ニトロソ系顔料、ニトロ系顔料、塩基性染料
系顔料、酸性染料系顔料、建染染料系顔料、媒染染料系
顔料及び天然染料系顔料等の有機顔料や、黄土、バリウ
ム黄、紺青、カドミウムレッド、硫酸バリウム、酸化チ
タン、ベンガラ、鉄黒、水酸化アルミニウム、炭酸カル
シウム、カーボンブラック等の無機顔料等が挙げられ、
これらは単独あるいは混合して使用することができ、ボ
ールペン用顔料インキ全量に対して３〜２０重量％が好
ましい。Pigments are used as colorants and are not particularly limited, and specifically include azo pigments, phthalocyanine pigments, nitroso pigments, nitro pigments, basic dye pigments, and acid dye pigments. , organic pigments such as vat dye pigments, mordant dye pigments, and natural dye pigments, ocher, barium yellow, navy blue, cadmium red, barium sulfate, titanium oxide, red iron black, iron black, aluminum hydroxide, calcium carbonate, Examples include inorganic pigments such as carbon black,
These can be used alone or in combination, and are preferably used in an amount of 3 to 20% by weight based on the total amount of the pigment ink for ballpoint pens.
水溶性有機溶剤は、ボールペン用顔料インキとしての種
々の品質、即ち、ペン先でのインキ乾燥防止、低温時で
のインキ凍結防止等用として使用するものであり、具体
的には、エチレングリコール、ジエチレングリコール、
トリエチレングリコール、プロピレングリコール、ポリ
エチレングリコール、１，３−ブチレングリコール、チ
オジエチレングリコール、グリセリン等のグリコール類
やエチレングリコールモノメチルエーテル、ジエチレン
グリコールモノメチルエーテル、２−ピロリドン、Ｎ−
メチル−２−ピロリドントリエタノールアミン等が単独
あるいは混合して用いられ、使用量はボールペン用顔料
インキ全量に対して５０重量％以下が好ましい。Water-soluble organic solvents are used for various qualities as pigment inks for ballpoint pens, such as to prevent the ink from drying at the pen tip and to prevent the ink from freezing at low temperatures.Specifically, ethylene glycol, diethylene glycol,
Glycols such as triethylene glycol, propylene glycol, polyethylene glycol, 1,3-butylene glycol, thiodiethylene glycol, glycerin, ethylene glycol monomethyl ether, diethylene glycol monomethyl ether, 2-pyrrolidone, N-
Methyl-2-pyrrolidone triethanolamine and the like are used alone or in combination, and the amount used is preferably 50% by weight or less based on the total amount of the pigment ink for ballpoint pens.
本発明の骨子である、ポリオキシエチレン・ポリオキシ
プロピレンブロック共重合体は粘度調節剤として用いる
ものであって、具体的には、ニューポー／Ｌｚ７５Ｈ−
９００００（Ｅ洋化成工業■製）ユニループ７５ＤＥ−
２６２０、同７５ＤＥ−５０００（日本油脂■製）等が
単独あるいは混合して用いられ、使用量は、筆跡線幅の
均一性を考慮するとボールペン用顔料インキ全量に対し
て３０重量％以下が好ましい。The core of the present invention, the polyoxyethylene/polyoxypropylene block copolymer, is used as a viscosity modifier, and specifically, Newport/Lz75H-
90000 (manufactured by Eyo Kasei Kogyo ■) Uniloop 75DE-
2620, 75DE-5000 (manufactured by Nippon Oil & Fats Corporation), etc. are used alone or in combination, and the amount used is preferably 30% by weight or less based on the total amount of pigment ink for ballpoint pens, considering the uniformity of the line width of handwriting.
又、本発明のボールペ用顔料インキは、その粘度が２５
℃におイテ、５０〜２０００ｃｐｓである事が必須要件
である。インキ粘度が５０ｃｐｓ未満では、ペン先より
のインキ洩れが発生しやすく、又、２０００ｃｐｓを超
えた場合ペン先よりインキが良好に吐出せず、筆跡にカ
スレ等が発生しやすくなるためである。Further, the pigment ink for ballpoint pens of the present invention has a viscosity of 25
℃, 50 to 2000 cps is an essential requirement. If the ink viscosity is less than 50 cps, ink will easily leak from the pen tip, and if it exceeds 2000 cps, the ink will not be ejected well from the pen tip, and handwriting will likely become blurred.
その他、上記必須成分の他に、従来公知の界面活性剤、
分散剤、防腐剤、防黴剤、潤滑剤等を適宜選択してもよ
い。In addition to the above essential ingredients, conventionally known surfactants,
Dispersants, preservatives, antifungal agents, lubricants, etc. may be selected as appropriate.
本ボールペン用顔料インキを得るためには、分散機を用
い、上記成分を分散・混合することによって容易に得ら
れるが、必要に応じて、顔料等の粗大粒子を、濾過や遠
心等で取り除くこともできる。This pigmented ink for ballpoint pens can be easily obtained by dispersing and mixing the above components using a dispersion machine, but if necessary, coarse particles such as pigments may be removed by filtration, centrifugation, etc. You can also do it.
（作用）
本発明に係るボールペン用顔料インキが何故経時的に顔
料粒子の凝集を生じないのかについては以下のように推
察される。(Function) The reason why the pigment ink for ballpoint pens according to the present invention does not cause aggregation of pigment particles over time is surmised as follows.
即ち、顔料粒子は、分散時に各々の顔料インキが同符号
に帯電することによって、インキ中において１粒子間に
電気的斥力が作用し、経時的に安定に分散状態を保つこ
とができるが、この分散体に粘度調節剤として添加する
ポリオキシエチレン・ポリオキシプロピレンブロック共
重合体は、帯電しておらず、顔料分散体における電気的
斥力に影響をおよぼさないので、経時的に安定に分散状
態を保つことができる。That is, when the pigment particles are dispersed, each pigment ink is charged with the same sign, so that an electric repulsion acts between each particle in the ink, and the dispersion state can be maintained stably over time. The polyoxyethylene/polyoxypropylene block copolymer added to the dispersion as a viscosity modifier is not electrically charged and does not affect the electrical repulsion in the pigment dispersion, so it is stably dispersed over time. can maintain its condition.
（実施例）
以下、実施例により本発明をより詳細に説明するが、実
施例、比較例中の１部」は「重量部」を示す。(Example) Hereinafter, the present invention will be explained in more detail with reference to Examples, where "1 part" in Examples and Comparative Examples indicates "part by weight".
失ｌ五よ
り−ボンブラック １０．０部（無機顔料
）
ＳＭＡ Ｒｅ５ｉｎ １４４０ ５．０
部（スチシンー７レイン酸共重合体アンモニウム塩水１
１゜固形分２７ｗｔ％１分散剤、
ＡＲＣＯケミカル社製）
グリセリン １５．０部ニューポー／
Ｉ／ ７５Ｈ−９００００２０，０部（ポリオキシエ
チレン・ポリオキシブ０ピレンブロツク共重合体、三洋
化成工業■製）
水 ５０．０部
上記成分を混合し、ボールミルで２４時間分散処理を行
なった後、１μｍフィルターにて濾過し、粘度８００セ
ンチポイズ（以下、ＱｐＳと略記する）の黒色ボールペ
ン用顔料インキを得た。Bonblack 10.0 parts (inorganic pigment) SMA Re5in 1440 5.0
parts (stycine-7 leicic acid copolymer ammonium salt water 1
1゜Solid content 27wt%1Dispersant, manufactured by ARCO Chemical Co.) Glycerin 15.0 parts Newport/
I/75H-9000020.0 parts (polyoxyethylene/polyoxybutylene block copolymer, manufactured by Sanyo Chemical Industries, Ltd.) Water 50.0 parts The above components were mixed and dispersed in a ball mill for 24 hours, and then dispersed to a diameter of 1 μm. The mixture was filtered to obtain a black pigment ink for ballpoint pens with a viscosity of 800 centipoise (hereinafter abbreviated as QpS).
共１ｕ」Ｌ
上記実施例１中、ニューポール ７５Ｈ−９００００２
０，０部の代わりに、ＣＭＣ−ダイセル＃２０００
（カルボキシメチルセルロース、 水溶性高分子、ダイ
セル化学工業■製）２．０部、水１８．０部を加えた以
外は、実施例１と同様になし、粘度８００ｃｐｓの黒色
ボールペン用顔料インキを得た。Both 1u"L In the above Example 1, Newport 75H-900002
CMC-Daicel #2000 instead of 0.0 parts
A black pigment ink for ballpoint pens with a viscosity of 800 cps was obtained in the same manner as in Example 1, except that 2.0 parts (carboxymethyl cellulose, water-soluble polymer, manufactured by Daicel Chemical Industries, Ltd.) and 18.0 parts of water were added. .
失に孤主
ブリリアント ファースト スカーレット
ｉｏ、ｏ 部（アゾ系赤色有機顔料、ＣＩ
Ｎａ１２３１５、住化カラー■製）
ジョンクリルＪ６１．ｊ １０．０部（スチ
レン−アクリル置共重合体アンモニウム塩水溶液、 固
形分３０ｗｔぶ、分散剤、ジョンソン■製）
エチレングリコール ２０．０部ユニループ
７５ＤＥ−２６２０１０、０部（ポリオキシエチレン・
ポリオキシブロビシンブａクク共重合体、日本油脂■製
）
水 ３５．０
部上記成分を混合し、ボールミルで２４時間分散処理を
行なった後、１μｍフィルターにて濾過し、粘度２００
ｃｐｓの赤色ボールペン用顔料インキを得た。Brilliant First Scarlet
io, o part (azo red organic pigment, CI
Na12315, manufactured by Sumika Color ■) Jonkryl J61. j 10.0 parts (styrene-acrylic copolymer ammonium salt aqueous solution, solid content 30wt, dispersant, made by Johnson ■) Ethylene glycol 20.0 parts Uniloop 75DE-262010, 0 parts (polyoxyethylene
Polyoxybrovitin Bukuku Copolymer, manufactured by NOF ■) Water 35.0
After mixing the above components and dispersing them in a ball mill for 24 hours, they were filtered through a 1 μm filter and the viscosity was 200.
A cps red pigment ink for ballpoint pens was obtained.
匝敗五ス
上記実施例２中、ユニループ７５０Ｅ−２６２０１０，
０部の代わりに、ＰＶＰ−に９０ ＜ポリビニルｌ’０
１ＪＦ：／、水溶性高分子、ＢＡＳＦ社製）５．０部、
水５．０部を加えた以外は、実施例２と同様になし、粘
度２００ｃｐｓの赤色ボールペン用顔料インキを得た。In the above Example 2, Uniloop 750E-262010,
Instead of 0 parts, PVP-90 < polyvinyl l'0
1JF:/, water-soluble polymer, manufactured by BASF) 5.0 parts,
A pigment ink for a red ballpoint pen having a viscosity of 200 cps was obtained in the same manner as in Example 2 except that 5.0 parts of water was added.
ル狡匠主
上記実施例１において、ニューポール ７５Ｈ−９００
００を３．０部、水を６７．０部とした以外は実施例１
と同様になし、粘度４０ｃｐｓの黒色ボールペン用顔料
インキを得た。In the above Example 1, Nieuport 75H-900
Example 1 except that 00 was 3.0 parts and water was 67.0 parts.
A black pigment ink for ballpoint pens having a viscosity of 40 cps was obtained in the same manner as above.
崖較孤土
上記実施例１において、ニューポール ７５Ｈ−９００
００を２７．０部、水を４３．０部とした以外は実施例
１と同様になし、粘度２２００ｃｐｓの黒色ボールペン
用顔料インキを得た。In the above Example 1, Nieuport 75H-900
A black pigment ink for ballpoint pens having a viscosity of 2200 cps was obtained in the same manner as in Example 1 except that 27.0 parts of 00 and 43.0 parts of water were used.
（発明の効果）
上記実施例１〜２、比較例１〜２で得たボールペン用顔
料インキをガラスビンに入れ、密封し、５０℃の恒温室
内に静置し、静置前及び静置後の顔料粒子の大きさを測
定した。結果を表１に示す。(Effect of the invention) The pigment inks for ballpoint pens obtained in Examples 1 to 2 and Comparative Examples 1 to 2 above were placed in a glass bottle, sealed, and left to stand in a constant temperature room at 50°C. The size of the pigment particles was measured. The results are shown in Table 1.
表１
＊顔料粒子径：特定孔径の濾紙にて濾過した時、残渣が
発生しなくなったときの濾紙の平均孔径
更に、実施例１〜２及び比較例１〜４で得たボールペン
用顔料インキを、内径３ ｍ ｍの透明樹脂筒に充填し
、先端に０．５ｍｍφ超硬ボールをセットした水性イン
キ用ステンレス製ボールペンチップを結合して試験用ボ
ールペンとなし、品質試験を行なった。結果を表２に示
す。Table 1 *Pigment particle size: average pore size of the filter paper when no residue is generated when filtered through a filter paper with a specific pore size. A test ballpoint pen was prepared by filling a transparent resin cylinder with an inner diameter of 3 mm and combining a stainless steel ballpoint pen tip for water-based ink with a 0.5mmφ carbide ball set at the tip, and conducting a quality test. The results are shown in Table 2.
インキ洩れ：ボールペンをペン先を下向は状態で５分間
静置し、ペン先からのイン
キの洩れを観察した。Ink leakage: A ballpoint pen was left standing for 5 minutes with the nib facing downward, and ink leakage from the nib was observed.
Ｏ：インキ洩れ無し
×：インキ洩れ有り
筆跡状態： Ｊ Ｉ Ｓ Ｐ３２０１筆記用紙Ａに手
書き筆記し、筆跡の状態を観察した。O: No ink leakage ×: Ink leakage Handwriting condition: Handwritten notes were written on JIS P3201 writing paper A, and the condition of the handwriting was observed.
０：良好
×：カスレ等が有り不良
筆跡の濃度変化二ボールペンを５０℃の恒温槽にペン先
を下向きの状態で静置し、
静置前後において、Ｊ Ｉ Ｓ Ｐ３２０１筆記用紙
Ａに手書き筆記した筆跡の
濃度を目視比較した。0: Good ×: Bad with scratches, etc. Density change in handwriting 2. A ballpoint pen was left standing in a constant temperature bath at 50°C with the pen tip facing downward, and handwriting was done on JIS P3201 writing paper A before and after leaving it still. The density of handwriting was visually compared.
０：濃度差無し
Δ：わずかに濃度差有り
×：大きな濃度差有り
−：筆記不能
／：試験せず
以上詳細に説明したように、本発明に係るボールペン用
顔料インキは、経時的な顔料の分散安定性の低下が少な
い、且つ、水性ボールペン用顔料インキと油性ボールペ
ン用顔料インキの特長点を兼ね備えたボールペン用顔料
インキである。0: No density difference Δ: Slight density difference ×: Large density difference -: Impossible to write/: Not tested As explained in detail above, the pigment ink for ballpoint pens according to the present invention shows that the pigment changes over time. This is a pigment ink for ballpoint pens that exhibits little deterioration in dispersion stability and that combines the features of water-based pigment inks for ballpoint pens and oil-based pigment inks for ballpoint pens.
尚、ボールペンのボールペンチップは、通常、水性イン
キ用の場合は、樹脂製、金属（ステンレス）製が、油性
インキの場合は、金属（ステンレス、真鍮）製が使用さ
れているが、本発明に係るボールペン用顔料インキは、
上記樹脂製、金属製のいずれにも使用可能である、即ち
、使用し得るポールチップの材質に限定は無いことを特
徴するThe ballpoint pen tip for a ballpoint pen is normally made of resin or metal (stainless steel) for water-based ink, and metal (stainless steel, brass) for oil-based ink. The pigment ink for ballpoint pens is
It is characterized by the fact that it can be used for both resin and metal, that is, there is no limitation on the material of the pole tip that can be used.
Claims (1)
ともなり、インキ粘度を５０〜２０００ｃｐｓ（２５℃
）の範囲としたボールペン用顔料インキにおいて、粘度
調節剤をポリオキシエチレン・ポリオキシプロピレンブ
ロック共重合体としたことを特徴とするボールペン用顔
料インキ。It consists of at least a pigment, water, a water-soluble organic solvent, and a viscosity modifier, and the ink viscosity is adjusted to 50 to 2000 cps (at 25°C).
) A pigment ink for a ballpoint pen, characterized in that the viscosity modifier is a polyoxyethylene/polyoxypropylene block copolymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63077872A JPH01249870A (en) | 1988-03-30 | 1988-03-30 | Pigment ink for ball point pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63077872A JPH01249870A (en) | 1988-03-30 | 1988-03-30 | Pigment ink for ball point pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01249870A true JPH01249870A (en) | 1989-10-05 |
Family
ID=13646148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63077872A Pending JPH01249870A (en) | 1988-03-30 | 1988-03-30 | Pigment ink for ball point pen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01249870A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5324764A (en) * | 1992-01-17 | 1994-06-28 | Sakura Color Products Corporation | Erasable ink composition for writing on impervious surface |
| US6204319B1 (en) | 1998-10-30 | 2001-03-20 | E.I. Du Pont De Nemours And Company | Aqueous coating compositions |
| JP2010155928A (en) * | 2008-12-26 | 2010-07-15 | Fujifilm Corp | Ink composition and image formation method |
| JP2011074256A (en) * | 2009-09-30 | 2011-04-14 | Fujifilm Corp | Pigment dispersion liquid, method of producing the same, and ink composition |
| JP2011132536A (en) * | 2011-03-07 | 2011-07-07 | Fujifilm Corp | Ink composition and method for forming image |
| JP2019112587A (en) * | 2017-12-26 | 2019-07-11 | 株式会社パイロットコーポレーション | Oily ink composition for writing instruments and writing instrument including the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56155261A (en) * | 1980-05-06 | 1981-12-01 | Canon Inc | Recording liquid |
| JPS62127373A (en) * | 1985-11-28 | 1987-06-09 | Pentel Kk | Ink composition for ball-point pen |
-
1988
- 1988-03-30 JP JP63077872A patent/JPH01249870A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56155261A (en) * | 1980-05-06 | 1981-12-01 | Canon Inc | Recording liquid |
| JPS62127373A (en) * | 1985-11-28 | 1987-06-09 | Pentel Kk | Ink composition for ball-point pen |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5324764A (en) * | 1992-01-17 | 1994-06-28 | Sakura Color Products Corporation | Erasable ink composition for writing on impervious surface |
| US6204319B1 (en) | 1998-10-30 | 2001-03-20 | E.I. Du Pont De Nemours And Company | Aqueous coating compositions |
| JP2010155928A (en) * | 2008-12-26 | 2010-07-15 | Fujifilm Corp | Ink composition and image formation method |
| US8371687B2 (en) | 2008-12-26 | 2013-02-12 | Fujifilm Corporation | Ink composition and image formation method |
| JP2011074256A (en) * | 2009-09-30 | 2011-04-14 | Fujifilm Corp | Pigment dispersion liquid, method of producing the same, and ink composition |
| JP2011132536A (en) * | 2011-03-07 | 2011-07-07 | Fujifilm Corp | Ink composition and method for forming image |
| JP2019112587A (en) * | 2017-12-26 | 2019-07-11 | 株式会社パイロットコーポレーション | Oily ink composition for writing instruments and writing instrument including the same |
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