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JP2004352741A - Solid drawing material - Google Patents

Solid drawing material Download PDF

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Publication number
JP2004352741A
JP2004352741A JP2003148548A JP2003148548A JP2004352741A JP 2004352741 A JP2004352741 A JP 2004352741A JP 2003148548 A JP2003148548 A JP 2003148548A JP 2003148548 A JP2003148548 A JP 2003148548A JP 2004352741 A JP2004352741 A JP 2004352741A
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JP
Japan
Prior art keywords
resin
solid drawing
writing
drawing material
sorbitol
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
Application number
JP2003148548A
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Japanese (ja)
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JP4113046B2 (en
Inventor
Takeshi Nakano
健 中野
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Shachihata Inc
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Shachihata Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority to JP2003148548A priority Critical patent/JP4113046B2/en
Publication of JP2004352741A publication Critical patent/JP2004352741A/en
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Publication of JP4113046B2 publication Critical patent/JP4113046B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a solid drawing material which can write on various writing objects such as paper, plastics, metals, glass, wood and concrete and can write on wet surfaces of these materials with a smooth writing feeling, is excellent in quick drying property enough to give a written line which immediately fixes after writing not to stain fingers and also excellent in cap-off property and can be suitably used in a wide range of applications. <P>SOLUTION: The solid drawing material comprises a coloring agent, a gelling agent comprising at least one selected from among dibenzylidene sorbitol, tribenzylidene sorbitol and derivatives thereof, an organic solvent comprising at least one lactate, and a resin comprising at least one selected from among vinyl resins, ketone resins and maleic acid resins. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【産業上の利用分野】
本発明は、固着性、描画性、速乾性に優れた固形状描画材に関する。
【0002】
【従来の技術】
従来よりパステルやクレヨンといった固形状描画材が知られており、特にベンジリデンソルビトール類などのゲル化剤を用いて固着性、描画性等を改善した特公昭54−23618号、特公昭54−23619号、特公昭55−41716号などの固形状描画材が提案されている。
また、ベンジリデンソルビトール類を使用した固形状描画材は、乾燥性に難があり、筆記直後に触れたりすると手指、筆記面を汚すおそれがあり、そのまましばらくの間放置して乾燥させねばならない等の不都合があったので、当該欠点の解消を目的として、特開平8−120209号、特開平8−209679号などが提案されている。これらの固形状描画材は、固着性、描画性、速乾性に優れ、かつ、主溶剤の蒸発抑制を図ることができ、滑らかな筆感で筆記可能であった。
上記提案の固形状描画材は、紙、プラスチック、金属、ガラス、木材、コンクリートなどの筆記対象物に筆記可能であり、ほとんど筆記対象物を選ばない優れた性質があるが、筆記対象物が水で濡れている場合だけは滑らかな筆記が不可能であって、筆記線が滑ったり濃淡ができたりしていた。特に、金属やガラスといった平滑な非吸収面が水で濡れている場合は、満足な筆記線が得られなかった。
【0003】
【特許文献1】
特公昭54−23618号公報
【特許文献2】
特公昭54−23619号公報
【特許文献3】
特公昭55−41716号公報
【特許文献4】
特開平8−120209号公報
【特許文献5】
特開平8−209679号公報
【0004】
【発明が解決しようとする課題】
本発明は上記問題点を解決すべくなされたものであって、筆記対象物が水で濡れている場合であっても滑らかな筆感での筆記が可能であって、かつ、固着性、描画性、速乾性に優れつつ主溶剤の蒸発抑制を図ることができる固形状描画材を提供することを目的としている。
【0005】
【課題を解決するための手段】
前記課題を解決する為に、着色剤と、ジベンジリデンソルビトール、トリベンジリデンソルビトール、又は、それらの誘導体の少なくとも1種からなるゲル化剤と、乳酸エステルの少なくとも1種からなる有機溶剤と、ビニル系樹脂、ケトン系樹脂、マレイン酸系樹脂の少なくとも1種からなる樹脂とを含むことを特徴とする固形状描画材を提供する。
【0006】
以下、本発明を詳細に説明する。
本発明に使用する着色剤は、公知の染料、顔料のいずれも使用することができる。染料は油溶性染料であればよく、モノアゾ系、ジスアゾ系、金属錯塩型モノアゾ系、アントラキノン系、フタロシアニン系、トリアリルメタン系等の油溶性染料を用いることができる。顔料は縮合アゾ、イソインドリノン、キナクリドン、ジケトピロロピロール、アントラキノン、ジオキサジン、フタロシアニン、チオインジコ等の有機顔料、カーボンブラック、酸化チタン、酸化鉄等の無機顔料、マイカやガラスを酸化チタンや酸化鉄で被覆した光輝性顔料、アルミ粉や真鍮粉等の金属顔料などを使用でき、他には蛍光顔料、蛍光増白剤、蓄光剤、夜光剤、示温染料、ラメなどいずれも使用できる。また、樹脂に顔料を練り込んだチップ状又は液状の加工顔料も用いることができる。
当該着色剤はインキ全量に対して、0.1〜50重量%を用いることができ、10〜40重量%が特に好ましい。
【0007】
本発明におけるゲル化剤としては、ジベンジリデンソルビトール、トリベンジリデンソルビトール、及び、それらの誘導体が挙げられる。
ジベンジリデンソルビトールの誘導体としては、ジベンジリデンソルビトールのベンジリデン基のベンゼン核の任意の位置に炭素数1〜3のアルキル基で置換された化合物(ジベンジリデンソルビトール誘導体)が例示でき、具体的には[ジ−(p−メチルベンジリデン)]−ソルビトール、[ジ−(m−エチルベンジリデン)]−ソルビトール、[ジ−(p−クロルベンジリデン)]−ソルビトール等が挙げられる。
トリベンジリデンソルビトールの誘導体としては、トリベンジリデンソルビトールのベンジリデン基のベンゼン核の任意の位置に炭素数1〜3のアルキル基で置換された化合物(トリベンジリデンソルビトール誘導体)が例示でき、具体的には[トリ−(p−メチルベンジリデン)]−ソルビトール、[トリ−(m−エチルベンジリデン)]−ソルビトール、[トリ−(p−クロルベンジリデン)]−ソルビトール等が挙げられる
当該ゲル化剤はインキ全量に対して、0.1〜50重量%を用いることができ、1〜30重量%が特に好ましい。
【0008】
有機溶剤は、乳酸エステルの少なくとも1種が必須であって、具体的には、乳酸メチル、乳酸エチル、乳酸n−プロピル、乳酸イソプロピル、乳酸n−ブチル、乳酸イソブチルの中から単独又は混合して使用できる。
また、他の有機溶剤を補助的に使用することも可能であって、メタノール、エタノール、プロパノール、ブタノール、ペンタノール、ヘキサノール、ベンジルアルコール等のアルコールや、メチルシクロヘキサン、ジメチルシクロヘキサン、エチルシクロヘキサン等の脂環族炭化水素や、ヘキサン、オクタン等の脂肪族炭化水素や、ベンゼン、トルエン、キシレン等の芳香族炭化水素や、メチルエチルケトン、ジメチルケトン、ジエチルケトン、4−メトキシ−4−メチルペンタノン等のケトンや、酢酸メチル、酢酸エチル、酢酸プロピル、酢酸ブチル、プロピオン酸メチル、プロピオン酸エチル、プロピオン酸プロピル、プロピオン酸ブチル等のエステルや、エチレングリコールモノメチルエーテル、エチレングリコールモノエチルエーテル、エチレングリコールモノプロピルエーテル、エチレングリコールモノブチルエーテル、プロピレングリコールモノメチルエーテル、プロピレングリコールモノエチルエーテル、プロピレングリコールモノプロピルエーテル、プロピレングリコールモノブチルエーテル、2−メトキシプロパノール、3−メトキシ−3−メチルブタノール等のグリコールエーテルなどから選ばれる1種又は2種以上を混合して補助溶剤とすることができる。
有機溶剤はインキ全量に対して、10〜90重量%を用いることができ、30〜70重量%が特に好ましく、有機溶剤全量中乳酸エステルは30%以上を占めることが好ましい。
【0009】
樹脂はビニル系樹脂、ケトン系樹脂、マレイン酸系樹脂の少なくとも1種を用いることが必須である。
具体的には、ポリビニルブチラール、ポリビニルアルコール、塩化ビニルー酢酸ビニル共重合体、ポリビニルピロリドン、酢酸ビニル樹脂等のビニル系樹脂、ケトン樹脂、ケトンアルデヒド縮合物樹脂、水添ケトンアルデヒド縮合物樹脂等のケトン系樹脂、マレイン酸樹脂、ロジン変性マレイン酸樹脂、スチレン−マレイン酸エステル樹脂等のマレイン酸系樹脂等を挙げることができ、これらの中から少なくとも1種又は2種以上の樹脂を用いることができる。
本発明で用いる樹脂は、インキ組成物全量に対して5〜40重量%を用いることができる。
【0010】
本発明の固形状描画材では、その他の成分として必要に応じて充填剤、レベリング剤、粘度調整剤、構造粘性付与剤、乾燥性付与剤等の公知の添加剤を適宜配合することができる。また、例えばジエチルフタレート、ジブチルフタレート、ジオクチルフタレート、エポキシヘキサヒドロフタル酸2−エチルヘキシル、セバシン酸2−エチルヘキシル、トリクレジルホスフェート等の可塑剤も適宜配合することができる。また、固形状描画材の強度向上・増量、書き味の向上のためシリカ、クレー、タルク、炭酸カルシウムなどの体質成分を含有させることもできる。
【0011】
通常の固形状描画材は折れ易いので、本発明の固形状描画材の曲げ強度は2N(ニュートン)以上となるように製造し、特に5N(ニュートン)以上となるように製造するのが好ましい。
【0012】
本発明の固形状描画材を製造するには、まず有機溶剤を加熱攪拌しながら樹脂を加えて完全に溶解させ、そこに着色剤を加え、三本ロールやビーズミルなどを用いて均一に混合した後、ゲル化剤を加えて攪拌しながら加熱してゲル化剤を完全に溶解させる。次に、残りの材料を加えて均一になるまで攪拌し、得られた混合物を繰り出し容器等の容器に流し込んで、冷却固化する。この工程によって本発明の固形状描画材が得ることができる。
【0013】
【実施例】
以下に実施例及び評価を示す。実施例はすべて重量部である。

Figure 2004352741
Figure 2004352741
【0014】
【効果】
本発明の固形状描画材は、紙、プラスチック、金属、ガラス、木材、コンクリートなどのさまざまな筆記対象物に筆記可能であり、しかもこれら材質の濡れた面に対しても滑らかな筆感での筆記が可能である。また、速乾性にも優れ、筆記後の筆記線は直ぐに固着して手指を汚したりしない。さらに、キャップオフ性能にも優れており、幅広い用途に好適に用いることができるものである。[0001]
[Industrial applications]
The present invention relates to a solid drawing material having excellent fixability, drawing property, and quick drying property.
[0002]
[Prior art]
Conventionally, solid drawing materials such as pastel and crayon have been known, and in particular, JP-B-54-23618 and JP-B-54-23619, in which the fixability and the drawing property are improved by using a gelling agent such as benzylidene sorbitol. Solid drawing materials such as Japanese Patent Publication No. 55-41716 have been proposed.
In addition, solid drawing materials using benzylidene sorbitols are difficult to dry, and if they are touched immediately after writing, they may stain the fingers, the writing surface, and must be left to dry for a while, etc. Because of the inconvenience, JP-A-8-120209 and JP-A-8-209679 have been proposed for the purpose of solving the drawback. These solid drawing materials were excellent in sticking properties, drawing properties, and quick-drying properties, could suppress evaporation of the main solvent, and could be written with a smooth brush feel.
The solid drawing material proposed above can be written on writing objects such as paper, plastic, metal, glass, wood, concrete, etc., and has excellent properties that almost no writing object is selected, but the writing object is water. Only when it was wet, it was impossible to write smoothly, and the writing line was slippery and shaded. In particular, when a smooth non-absorbing surface such as metal or glass was wet with water, satisfactory writing lines could not be obtained.
[0003]
[Patent Document 1]
JP-B-54-23618 [Patent Document 2]
Japanese Patent Publication No. 54-23619 [Patent Document 3]
Japanese Patent Publication No. 55-41716 [Patent Document 4]
JP-A-8-120209 [Patent Document 5]
JP-A-8-209679
[Problems to be solved by the invention]
The present invention has been made in order to solve the above problems, and it is possible to write with a smooth brush feeling even when the writing object is wet with water, and to obtain stickiness and drawing. It is an object of the present invention to provide a solid drawing material which is excellent in drying property and quick drying property and can suppress evaporation of a main solvent.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, a coloring agent, a dibenzylidene sorbitol, a tribenzylidene sorbitol, or a gelling agent composed of at least one derivative thereof, an organic solvent composed of at least one lactic acid ester, and a vinyl resin And a resin comprising at least one of a resin, a ketone-based resin, and a maleic acid-based resin.
[0006]
Hereinafter, the present invention will be described in detail.
As the colorant used in the present invention, any of known dyes and pigments can be used. The dye may be any oil-soluble dye, and an oil-soluble dye such as a monoazo type, disazo type, metal complex salt type monoazo type, anthraquinone type, phthalocyanine type, and triallylmethane type can be used. Pigments include organic pigments such as condensed azo, isoindolinone, quinacridone, diketopyrrolopyrrole, anthraquinone, dioxazine, phthalocyanine, and thioindico, inorganic pigments such as carbon black, titanium oxide and iron oxide, and mica and glass made of titanium oxide and iron oxide. Bright pigments, metal pigments such as aluminum powders and brass powders coated with, etc. can be used. In addition, any of fluorescent pigments, fluorescent brighteners, luminous agents, luminous agents, thermochromic dyes, and glitters can be used. In addition, a chip-like or liquid processed pigment obtained by kneading a pigment into a resin can also be used.
The colorant can be used in an amount of 0.1 to 50% by weight, and particularly preferably 10 to 40% by weight, based on the total amount of the ink.
[0007]
Examples of the gelling agent in the present invention include dibenzylidene sorbitol, tribenzylidene sorbitol, and derivatives thereof.
Examples of the derivative of dibenzylidene sorbitol include a compound (dibenzylidene sorbitol derivative) in which a benzylidene group of dibenzylidene sorbitol is substituted with an alkyl group having 1 to 3 carbon atoms at an arbitrary position of a benzene nucleus. Di- (p-methylbenzylidene)]-sorbitol, [di- (m-ethylbenzylidene)]-sorbitol, [di- (p-chlorobenzylidene)]-sorbitol and the like.
Examples of the derivative of tribenzylidene sorbitol include a compound (tribenzylidene sorbitol derivative) in which a benzylidene group of tribenzylidene sorbitol is substituted with an alkyl group having 1 to 3 carbon atoms at an arbitrary position of a benzene nucleus. The gelling agent includes tri- (p-methylbenzylidene)]-sorbitol, [tri- (m-ethylbenzylidene)]-sorbitol, [tri- (p-chlorobenzylidene)]-sorbitol and the like. Thus, 0.1 to 50% by weight can be used, and 1 to 30% by weight is particularly preferable.
[0008]
As the organic solvent, at least one kind of lactate ester is essential. Specifically, methyl lactate, ethyl lactate, n-propyl lactate, isopropyl lactate, n-butyl lactate, and isobutyl lactate are used alone or in combination. Can be used.
It is also possible to use other organic solvents supplementarily, such as alcohols such as methanol, ethanol, propanol, butanol, pentanol, hexanol and benzyl alcohol, and oils such as methylcyclohexane, dimethylcyclohexane and ethylcyclohexane. Cyclic hydrocarbons, aliphatic hydrocarbons such as hexane and octane, aromatic hydrocarbons such as benzene, toluene and xylene, and ketones such as methyl ethyl ketone, dimethyl ketone, diethyl ketone and 4-methoxy-4-methylpentanone And esters such as methyl acetate, ethyl acetate, propyl acetate, butyl acetate, methyl propionate, ethyl propionate, propyl propionate, and butyl propionate, and ethylene glycol monomethyl ether and ethylene glycol monoethyl ether. Glycols such as ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, 2-methoxypropanol and 3-methoxy-3-methylbutanol One or more selected from ethers and the like can be used as an auxiliary solvent by mixing.
The organic solvent can be used in an amount of 10 to 90% by weight, particularly preferably 30 to 70% by weight, based on the total amount of the ink, and the lactic acid ester accounts for preferably 30% or more of the total amount of the organic solvent.
[0009]
As the resin, it is essential to use at least one of a vinyl resin, a ketone resin, and a maleic resin.
Specifically, vinyl resins such as polyvinyl butyral, polyvinyl alcohol, vinyl chloride-vinyl acetate copolymer, polyvinyl pyrrolidone and vinyl acetate resin, ketone resins, ketone aldehyde condensate resins, and hydrogenated ketone aldehyde condensate resins and other ketones Resin, maleic acid resin, rosin-modified maleic resin, maleic acid resin such as styrene-maleic ester resin, and the like, and at least one kind or two or more kinds of these resins can be used. .
The resin used in the present invention can be used in an amount of 5 to 40% by weight based on the total amount of the ink composition.
[0010]
In the solid drawing material of the present invention, known additives such as a filler, a leveling agent, a viscosity modifier, a structural viscosity-imparting agent, and a dryness-imparting agent can be appropriately compounded as other components as necessary. Further, for example, a plasticizer such as diethyl phthalate, dibutyl phthalate, dioctyl phthalate, 2-ethylhexyl epoxyhexahydrophthalate, 2-ethylhexyl sebacate, and tricresyl phosphate can also be appropriately compounded. In addition, a constitutional component such as silica, clay, talc, and calcium carbonate can be contained for improving the strength and increasing the weight of the solid drawing material and improving the writing taste.
[0011]
Since ordinary solid drawing materials are easily broken, the solid drawing material of the present invention is preferably manufactured to have a bending strength of 2 N (Newton) or more, and particularly preferably to be manufactured to have a bending strength of 5 N (Newton) or more.
[0012]
In order to produce the solid drawing material of the present invention, first add a resin while heating and stirring an organic solvent to completely dissolve, add a colorant thereto, and uniformly mix using a three-roll or bead mill. Thereafter, the gelling agent is added and heated with stirring to completely dissolve the gelling agent. Next, the remaining materials are added and stirred until uniform, and the resulting mixture is fed into a container such as a container and solidified by cooling. By this step, the solid drawing material of the present invention can be obtained.
[0013]
【Example】
Examples and evaluations are shown below. All examples are parts by weight.
Figure 2004352741
Figure 2004352741
[0014]
【effect】
The solid drawing material of the present invention can be written on various objects to be written, such as paper, plastic, metal, glass, wood, and concrete, and has a smooth brush feeling even on wet surfaces of these materials. Writing is possible. In addition, it has excellent quick-drying properties, and the writing line after writing is immediately fixed and does not stain fingers. Furthermore, it has excellent cap-off performance and can be suitably used for a wide range of applications.

Claims (1)

着色剤と、ジベンジリデンソルビトール、トリベンジリデンソルビトール、又は、それらの誘導体の少なくとも1種からなるゲル化剤と、乳酸エステルの少なくとも1種からなる有機溶剤と、ビニル系樹脂、ケトン系樹脂、マレイン酸系樹脂の少なくとも1種からなる樹脂とを含むことを特徴とする固形状描画材。A coloring agent, a gelling agent comprising at least one of dibenzylidenesorbitol, tribenzylidenesorbitol, or a derivative thereof; an organic solvent comprising at least one lactate; a vinyl resin, a ketone resin, and maleic acid And a resin comprising at least one resin.
JP2003148548A 2003-05-27 2003-05-27 Solid drawing material Expired - Fee Related JP4113046B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008029690A1 (en) * 2006-09-04 2008-03-13 Sakura Color Products Corporation Crayon and method for producing the same
WO2008029691A1 (en) * 2006-09-04 2008-03-13 Sakura Color Products Corporation Crayon and method for producing the same
EP2053106A1 (en) * 2006-07-12 2009-04-29 Sakura Color Products Corporation Crayon
US7943684B2 (en) 2006-07-12 2011-05-17 Sakura Color Products Corporation Process for production of black crayon

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2053106A1 (en) * 2006-07-12 2009-04-29 Sakura Color Products Corporation Crayon
US7943684B2 (en) 2006-07-12 2011-05-17 Sakura Color Products Corporation Process for production of black crayon
EP2053106A4 (en) * 2006-07-12 2012-02-08 Sakura Color Prod Corp Crayon
WO2008029690A1 (en) * 2006-09-04 2008-03-13 Sakura Color Products Corporation Crayon and method for producing the same
WO2008029691A1 (en) * 2006-09-04 2008-03-13 Sakura Color Products Corporation Crayon and method for producing the same
JP2008063353A (en) * 2006-09-04 2008-03-21 Sakura Color Prod Corp Crayon and method for producing the same
JP2008063352A (en) * 2006-09-04 2008-03-21 Sakura Color Prod Corp Crayon and method for producing the same
US8242190B2 (en) 2006-09-04 2012-08-14 Sakura Color Products Corporation Crayon and process for producing the same
US8299143B2 (en) 2006-09-04 2012-10-30 Sakura Color Products Corporation Crayon and process for producing the same

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