JPH0745633B2 - Colorant manufacturing method - Google Patents

Colorant manufacturing method

Info

Publication number
JPH0745633B2
JPH0745633B2 JP60123751A JP12375185A JPH0745633B2 JP H0745633 B2 JPH0745633 B2 JP H0745633B2 JP 60123751 A JP60123751 A JP 60123751A JP 12375185 A JP12375185 A JP 12375185A JP H0745633 B2 JPH0745633 B2 JP H0745633B2
Authority
JP
Japan
Prior art keywords
colorant
pigment
humic acid
vinyl acetate
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.)
Expired - Fee Related
Application number
JP60123751A
Other languages
Japanese (ja)
Other versions
JPS61281160A (en
Inventor
一男 津布子
信一 倉本
香代子 森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP60123751A priority Critical patent/JPH0745633B2/en
Priority to DE19863619078 priority patent/DE3619078A1/en
Publication of JPS61281160A publication Critical patent/JPS61281160A/en
Publication of JPH0745633B2 publication Critical patent/JPH0745633B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0001Post-treatment of organic pigments or dyes
    • C09B67/0004Coated particulate pigments or dyes
    • C09B67/0008Coated particulate pigments or dyes with organic coatings
    • C09B67/0013Coated particulate pigments or dyes with organic coatings with polymeric coatings
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D17/00Pigment pastes, e.g. for mixing in paints
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00Developers
    • G03G9/08Developers with toner particles
    • G03G9/12Developers with toner particles in liquid developer mixtures
    • G03G9/13Developers with toner particles in liquid developer mixtures characterised by polymer components
    • G03G9/131Developers with toner particles in liquid developer mixtures characterised by polymer components obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00Developers
    • G03G9/08Developers with toner particles
    • G03G9/12Developers with toner particles in liquid developer mixtures
    • G03G9/135Developers with toner particles in liquid developer mixtures characterised by stabiliser or charge-controlling agents
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00Developers
    • G03G9/08Developers with toner particles
    • G03G9/12Developers with toner particles in liquid developer mixtures
    • G03G9/135Developers with toner particles in liquid developer mixtures characterised by stabiliser or charge-controlling agents
    • G03G9/1355Ionic, organic compounds

Description

【発明の詳細な説明】 技術分野 本発明は電子写真用液体現像剤、塗料、印刷インキなど
に使用される着色剤の製造方法に関する。
TECHNICAL FIELD The present invention relates to a method for producing a colorant used in liquid developers for electrophotography, paints, printing inks and the like.

従来技術 例えばカーボンブラック、フタロシアニンブルー等の有
機又は無機顔料を樹脂と混練し、粉砕することによって
得られる着色剤をトナーとして、高絶縁性で低誘導率の
担体液中に均一分散してなる電子写真用液体現像剤は従
来からよく知られている。だが、通常この着色剤は、有
機又は無機顔料が強い二次凝集を起こしているため、ボ
ールミル、アトライター、熱ロールミル等でビヒクル中
へ分散しても容易に一次粒子迄には分散できないもので
あった。
2. Description of the Related Art Electrons that are uniformly dispersed in a carrier liquid having high insulation and low dielectric constant using a colorant obtained by kneading an organic or inorganic pigment such as carbon black or phthalocyanine blue with a resin and pulverizing the resin as a toner. Liquid photographic developers have long been well known. However, since this colorant usually causes strong secondary aggregation of organic or inorganic pigments, it cannot be easily dispersed into primary particles even if dispersed in a vehicle with a ball mill, attritor, hot roll mill, or the like. there were.

ところで、カーボンブラック等を水中に分散し、次に樹
脂溶液と共に混練してカーボンブラックをとりまく水を
樹脂溶液により置換せしめた後、水及び溶剤を除去する
ことによって着色剤を製造するフラッシング法が知られ
ている。
By the way, a flushing method is known in which carbon black or the like is dispersed in water, and then the water surrounding the carbon black is kneaded with the resin solution to replace the water with the resin solution, and then the colorant is produced by removing the water and the solvent. Has been.

しかしながら、このフラッシング法でも、カーボンブラ
ックが親水性でないため水によく分散せず微粒化出来な
い等、上記同様一次粒子迄に分散しにくいものであっ
た。
However, even with this flushing method, since carbon black is not hydrophilic, it is not well dispersed in water and cannot be atomized.

このような従来のフラッシング法を用いて製造された着
色剤を電子写真トナー粒子とし、電子写真用液体現像剤
に使用した場合、担体液中での分散性が十分でないた
め、高濃度で階調性及び定着性の優れた画像を形成する
ことは困難であった。
When a colorant produced by using such a conventional flushing method is used as an electrophotographic toner particle and used in a liquid developer for electrophotography, the dispersibility in a carrier liquid is not sufficient, and therefore, a high density gradation is obtained. It was difficult to form an image excellent in fixing property and fixing property.

もっとも、かゝるフラッシング法を採用した着色剤の製
造法を改良するものとして(a)カーボンブラックなど
の着色剤を水中に分散する際アニオン、ノニオン又はカ
チオン界面活性剤や高分子合成ポリマー分散剤等を添加
する方法、(b)フミン酸、フミン酸塩又はフミン酸誘
導体を用いてカーボンブラックなどの着色剤を分散し、
更に低分子量ポリエチレンや天然樹脂変性樹脂、ダンマ
ル、コーパル、シエラック、ガムロジン、スチレン‐ブ
タジェン共重合体、ポリオレフィンなどを混練し顔料粒
子を被覆する方法(特開昭59−102253号公報)などが検
討あるいは開示されている。
However, (a) when dispersing a colorant such as carbon black in water, an anionic, nonionic or cationic surfactant or a high molecular synthetic polymer dispersant is used to improve the method for producing a colorant employing such a flushing method. Etc., (b) Dispersing a colorant such as carbon black using humic acid, a humic acid salt or a humic acid derivative,
Furthermore, a method for coating pigment particles by kneading low-molecular-weight polyethylene or natural resin-modified resin, dammal, copal, shellac, gum rosin, styrene-butadiene copolymer, polyolefin, etc. (Japanese Patent Laid-Open No. 59-102253), etc. It is disclosed.

しかし、上記(a)の方法により得られた着色剤は担体
液中での分散性がいまだ十分でないといった欠点があ
る。また、上記(b)の方法により得られた着色剤は他
の樹脂とのブレンドが必ずしも十分とはいいきれず、従
って被着性に若干劣る欠点がある。
However, the colorant obtained by the above method (a) has a drawback that the dispersibility in the carrier liquid is still insufficient. Further, the colorant obtained by the above method (b) cannot be said to be sufficiently blended with other resins, and therefore has a drawback that the adherence is slightly inferior.

目的 本発明は紙、木材、金属板などへの定着及至接着が特に
良好に行なえる電子写真用トナー、染料、印刷インキ等
に用いられる着色剤を提供するものである。
Object The present invention provides a colorant for use in electrophotographic toners, dyes, printing inks, etc. which can be particularly well fixed and adhered to paper, wood, metal plates and the like.

構成 本発明の着色剤の製造法は、少なくとも(1)顔料およ
び(2)エチレン‐酢酸ビニル共重合体を、更にはこれ
らに(3)フミン酸、フミン酸塩又はフミン酸誘導体を
含有させフラッシング法により行なうことを特徴とす
る。
Structure The method for producing a colorant of the present invention is a flushing method in which at least (1) a pigment and (2) an ethylene-vinyl acetate copolymer are further contained, and further (3) a humic acid, a humic acid salt or a humic acid derivative is contained. It is characterized by performing by the method.

ちなみに、本発明者らは顔料およびエチレン‐酢酸ビニ
ル共重合体を用いた顔料分散又は顔料、フミン酸(フミ
ン酸塩、フミン酸誘導体)およびエチレン‐酢酸ビニル
共重合体を用いた顔料分散においては、他の樹脂との相
溶性や加熱混練時の溶融粘度が高いことなどから、顔料
それ自体の分散は勿論のこと、得られた着色剤の分散及
び他の樹脂とのブレンドも容易になることを見出した。
本発明はかゝる知見に基いて完成されたものである。
Incidentally, in the pigment dispersion using the pigment and the ethylene-vinyl acetate copolymer or the pigment dispersion using the pigment, humic acid (humic acid salt, humic acid derivative) and the ethylene-vinyl acetate copolymer, Since the compatibility with other resins and the melt viscosity at the time of heating and kneading are high, not only the dispersion of the pigment itself but also the dispersion of the obtained colorant and the blending with other resins become easy. Found.
The present invention has been completed based on such knowledge.

以下に本発明をさらに詳細に説明する。The present invention will be described in more detail below.

まず、本発明で使用される顔料(カーボンブラッック、
有機顔料)には次のようなものを例示することができ
る。
First, the pigment used in the present invention (carbon black,
Examples of organic pigments include the following.

カーボンブラックとしては、フアーネスブラック、アセ
チレンブラック、チャンネルブラックなどいずれも使用
でき、市販品としてプリンテックスG、スペシャルブラ
ック15、スペシャルブラック4、スペシャルブラック4-
B(以上デグサ社製)、三菱♯44、♯30、MA-11、MA-100
(以上三菱カーボン社製)、ラーベン30、ラーベン40、
コンダクテックスSC(以上コロンビアカーボン社製)、
リーガル800、400、660、ブラックパールL(以上キャ
ボット社製)が知られている。
As carbon black, any of furnace black, acetylene black, channel black and the like can be used. Commercially available products such as Printex G, special black 15, special black 4 and special black 4-
B (above Degussa), Mitsubishi # 44, # 30, MA-11, MA-100
(Made by Mitsubishi Carbon Co., Ltd.), Raven 30, Raven 40,
Conductex SC (made by Columbia Carbon Co., Ltd.),
Regal 800, 400, 660 and Black Pearl L (all manufactured by Cabot Corporation) are known.

有機顔料としては、フタロシアニンブルー、フタロシア
ニングリーン、スカイブルー、ローダミンレーキ、マラ
カイトグリーンレーキ、メチルバイオレットレーキ、ピ
ーコックブルーレーキ、ナフトールグリーンB、ナフト
ールグリーンY、ナフトールイエローS、リソールフア
ーストイエロー2G、パーマネントレッド4R、ブリリアン
トフアストスカーレット、ハンザイエロー、ベンジジン
イエロー、リソールレッド、レーキレッドC、レーキレ
ッドD、ブリリアントカーミン6B、パーマネントレッド
F5R、ピグメントスカーレット3Bおよびボルドー10Bなど
があげられる。
Examples of organic pigments include phthalocyanine blue, phthalocyanine green, sky blue, rhodamine lake, malachite green lake, methyl violet lake, peacock blue lake, naphthol green B, naphthol green Y, naphthol yellow S, lysol farst yellow 2G, permanent red 4R. , Brilliant Huast Scarlet, Hansa Yellow, Benzidine Yellow, Resole Red, Lake Red C, Lake Red D, Brilliant Carmine 6B, Permanent Red
Examples include F5R, Pigment Scarlet 3B and Bordeaux 10B.

顔料を被覆する樹脂は、非水溶媒(電子写真液体現像剤
であればその担体液)に難溶又は不溶であることが望ま
しいが、本発明ではこれとしてエチレン‐酢酸ビニル共
重合体を採用している。
The resin coating the pigment is preferably slightly soluble or insoluble in the non-aqueous solvent (the carrier liquid in the case of an electrophotographic liquid developer). In the present invention, an ethylene-vinyl acetate copolymer is adopted as this. ing.

エチレン‐酢酸ビニル共重合体は酢酸ビニル含有量が1.
0〜50重量%好ましくは10〜40重量%占めるものであっ
て、軟化点40〜180℃好ましくは60〜120℃の範囲にある
ものが望ましい。このようなエチレン‐酢酸ビニル共重
合体の代表例(市販品)をあげれば下記のとおりであ
る。(i)三井・デュポンポリケミカル社製のもの (ii)東洋ソーダ社製のもの (iii)アライドケミカル社製のもの (iv)ヘキスト社製のもの (v)BASF社製のもの これらエチレン‐酢酸ビニル共重合体の使用量は顔料1
重量部に対し0.01〜3.0重量部好ましくは0.1〜2.0重量
部が適当である。
The ethylene-vinyl acetate copolymer has a vinyl acetate content of 1.
It is desirable that the content thereof is 0 to 50% by weight, preferably 10 to 40% by weight, and the softening point is in the range of 40 to 180 ° C, preferably 60 to 120 ° C. Typical examples (commercially available products) of such ethylene-vinyl acetate copolymer are as follows. (I) Made by Mitsui DuPont Polychemicals (Ii) manufactured by Toyo Soda (Iii) Made by Allied Chemicals (Iv) Made by Hoechst (V) Made by BASF The amount of these ethylene-vinyl acetate copolymers used is pigment 1
0.01 to 3.0 parts by weight, preferably 0.1 to 2.0 parts by weight, is suitable for the parts by weight.

なお、エチレン‐酢酸ビニル共重合体の一部を前記の例
えば天然樹脂変性石炭樹脂、天然樹脂変性マレイン酸樹
脂、ダンマル、コーパル、シェラック、ガムロジン、硬
化ロジン、エステルガムグリセリンエステル変性マレイ
ン酸樹脂、スチレン−ブタジエン共重合体、更にはポリ
オレフィン、ポリオレフィンとの共重合体、ワックスな
どに一部代替させることは可能である。
In addition, a part of the ethylene-vinyl acetate copolymer is, for example, natural resin-modified coal resin, natural resin-modified maleic acid resin, dammar, copal, shellac, gum rosin, cured rosin, ester gum glycerin ester-modified maleic acid resin, styrene. -It is possible to partially substitute a butadiene copolymer, a polyolefin, a copolymer with a polyolefin, or a wax.

ここで、エチレン‐酢酸ビニル共重合体以外の上記樹脂
(ワックス類を含む)の市販品を例示すれば下記のごと
きものがあげられる。
Here, examples of commercially available products of the above resins (including waxes) other than the ethylene-vinyl acetate copolymer include the following.

本発明の一つは顔料が特定樹脂で被覆された着色剤は、
フラッシング法によって得られるが、本発明の他の一つ
は顔料分散工程中にさらにフミン酸、フミン酸塩又はフ
ミン酸誘導体を使用して得られる。
One of the present invention is a colorant in which a pigment is coated with a specific resin,
Although obtained by the flushing method, another of the present invention is obtained by further using humic acid, a humic acid salt or a humic acid derivative during the pigment dispersion process.

フミン酸について説明すれば、フミン酸は石炭化度の低
い泥炭、亜炭などの若年炭類に含まれているアルカリ可
溶の不定形高分子有機酸である。このフミン酸は天然物
と人工物(ニトロフイン酸を含む)に大別され、本発明
ではいずれも使用可能である。フミン酸の工業製品は、
分子量分布の違いによりCH型、CHA型及びCHN型があり、
また、それぞれ酸型のものあるいは例えばNa、NH4等に
よる塩型があり、いずれも使用可能である。
Explaining humic acid, humic acid is an alkali-soluble amorphous polymeric organic acid contained in young coals such as peat and lignite having a low degree of coalification. This humic acid is roughly classified into a natural product and an artificial product (including nitrofunic acid), and any of them can be used in the present invention. Industrial products of humic acid are
There are CH type, CHA type and CHN type depending on the difference in molecular weight distribution.
There are acid type and salt type such as Na, NH 4, etc., and any of them can be used.

フミン酸、フミン酸塩又はフミン酸誘導体(以降「フミ
ン酸類」という)は顔料によく吸着するため、一次粒子
近似まで微粉化分散させることや分散安定性の向上(長
期保存)に一層有利である。
Humic acid, humic acid salts, or humic acid derivatives (hereinafter referred to as "humic acids") are well adsorbed on pigments, and are therefore more advantageous for finely dispersing to the order of primary particles and improving dispersion stability (long-term storage). .

着色剤は、以上の原料を使用し次のようにして製造され
る。顔料含水液にフミン酸類を顔料含水液の0.1〜30重
量%混合し、ニーダー中でよく混合したものを、また
は、フミン酸類を加えない顔料含水液を、更に樹脂溶液
と共にフラッシャーと呼ばれるニーダー中でよく混合す
る。これにより顔料の囲りに存在する水が樹脂溶液によ
って置換される。これをニーダーより水を捨て、樹脂溶
液中に顔料が分散されたものを乾燥して溶剤を除去して
塊りを得る。次にこの塊りを粉砕することにより着色剤
の粉末が得られる。この着色剤は顔料が1次粒子の状態
で樹脂によって被覆されており、印刷インキ、塗料、静
電写真用トナーなどに有用である。
The colorant is manufactured using the above raw materials as follows. Humic acids were mixed in the pigment-containing liquid with 0.1 to 30% by weight of the pigment-containing liquid and mixed well in a kneader, or a pigment-containing liquid containing no humic acids was further added to a resin solution in a kneader called a flasher. Mix well. This replaces the water present in the pigment surround with the resin solution. Water is discarded from the kneader, and the pigment solution dispersed in the resin solution is dried to remove the solvent to obtain a lump. Then, the lump is crushed to obtain a colorant powder. This colorant is a pigment coated with resin in the form of primary particles and is useful for printing ink, paint, toner for electrostatic photography, and the like.

例えば、上記のようにして製造された着色剤を用いて静
電写真用液体現像剤を調製するには、この着色剤をバイ
ンダー樹脂とともに担体液中に分散せしめればよい。
For example, in order to prepare a liquid developer for electrostatic photography using the colorant produced as described above, this colorant may be dispersed in a carrier liquid together with a binder resin.

担体液としては、高絶縁性(電気抵抗1010Ωcm以上)、
低誘電率(誘電率3以下)の石油系脂肪族炭化水素、n-
ヘキサン、リグロイン、n-ヘプタン、n-ペンタン、イソ
ドデカン、イソオクタンなどの他の、それらのハロゲン
誘導体例えば四塩化炭素、パークロルエチレンなどがあ
げられる。なお、前記の石油系脂肪族炭化水素の市販品
にはエキソン社製の、アンソパーE、アイソパーG、ア
イソパーL、アイソパーH、アイソパーK、ナフサNo.
6、ソルベッソ100などがある。これらは単独で又は組合
わせて使用される。
The carrier liquid has high insulation (electrical resistance 10 10 Ωcm or more),
Petroleum-based aliphatic hydrocarbons with low dielectric constant (dielectric constant of 3 or less), n-
Hexane, ligroin, n-heptane, n-pentane, isododecane, isooctane, and other halogen derivatives thereof such as carbon tetrachloride and perchlorethylene can be mentioned. Commercial products of the above-mentioned petroleum-based aliphatic hydrocarbons are Ansoper E, Isopar G, Isopar L, Isopar H, Isopar K, Naphtha No.
There are 6 and Solvesso 100. These are used alone or in combination.

次に実施例及び比較例を示す。Next, examples and comparative examples will be shown.

実施例1 水 500g プリンテックス 30g アルカンブルー 20g フミン酸 10g をフラッシャーでよく攪拌した後、更にエチレン‐酢酸
ビニル共重合体(エバフレックス310)600gをフラッシ
ャーに添加して混練した。続いて加熱し、減圧して水分
と溶剤を除去し含水分0.50%の着色剤の塊りを得た。こ
れをストーンミルで粉砕して1〜5μの粉末とした。
Example 1 Water 500 g Printex 30 g Alkane blue 20 g Humic acid 10 g was thoroughly stirred with a flasher, and then 600 g of an ethylene-vinyl acetate copolymer (Evaflex 310) was added to the flasher and kneaded. Subsequently, the mixture was heated and decompressed to remove water and solvent, and a lump of the coloring agent having a water content of 0.50% was obtained. This was pulverized with a stone mill to obtain a powder having a size of 1 to 5 μ.

実施例2〜10 実施例1と同様の操作でそれぞれ原料だけを表−1に示
すものにかえて9種の着色剤粉末を製造した。
Examples 2 to 10 In the same manner as in Example 1, except that the raw materials were changed to those shown in Table-1, nine kinds of colorant powders were produced.

なお、実施例5又は6においてフミン酸塩のすべてをフ
タロシアニンブルー又はアルカリブルーに代えた以外は
同様にして着色剤粉末を製造したが、これらも良好な定
着性、画像濃度を示した。
A colorant powder was produced in the same manner as in Example 5 or 6 except that all of the humic acid salts were replaced with phthalocyanine blue or alkali blue, but these also showed good fixability and image density.

比較例1〜10 実施例1〜10に対応するようにして10種の比較着色剤粉
末を製造した。ただし、ここでは樹脂としてエチレン‐
酢酸ビニル共重合体は使用せず、表−2のものを用い
た。
Comparative Examples 1-10 Ten types of comparative colorant powders were prepared in a manner corresponding to Examples 1-10. However, ethylene-
The vinyl acetate copolymer was not used, and those shown in Table 2 were used.

さらに、これらの着色剤粉末20gをポリラウリルメタク
リレート/アクリル酸(90/10)50gとともにアイソパー
G100gに添加し、ボールミルで72時間混練して濃縮トナ
ーとし、これの50gを2lのアイソパーHに分散させて現
像剤を調製した。
In addition, 20 g of these colorant powders together with 50 g of polylauryl methacrylate / acrylic acid (90/10) are used as isopar
G was added to 100 g and kneaded with a ball mill for 72 hours to give a concentrated toner, and 50 g of this was dispersed in 2 l of Isopar H to prepare a developer.

これらの現像剤を用いて市販の複写機(リコー社製リコ
ピーDT-1200)でコピーに供したことろ表−3に示すよ
うな結果が得られた。
The results shown in Table 3 were obtained by using these developers for copying with a commercially available copying machine (Recopy DT-1200, manufactured by Ricoh Co., Ltd.).

効果 本発明方法により製造された着色剤は、上記のように、
良好な定着性能を有している。また、顔料として特にカ
ーボンブラックを用いた場合には黒色度が一層高められ
るが、これは本発明のフラックミング着色剤において、
カーボンブラックがよく分散されていることを示すもの
と考えられる。
Effect The colorant produced by the method of the present invention, as described above,
It has good fixing performance. Further, especially when carbon black is used as the pigment, the blackness is further increased, which is due to the flaming colorant of the present invention.
It is considered that this indicates that the carbon black is well dispersed.

フロントページの続き (56)参考文献 特開 昭59−100168(JP,A) 特開 昭54−95633(JP,A) 特開 昭58−17169(JP,A)Continuation of the front page (56) Reference JP-A-59-100168 (JP, A) JP-A-54-95633 (JP, A) JP-A-58-17169 (JP, A)

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】フラッシング法を用いる着色剤の製造にお
いて (1)顔料、および (2)エチレン−酢酸ビニル共重合体 を少なくとも含有させて行なうことを特徴とする着色剤
の製造方法。
1. A method for producing a colorant, which comprises producing at least (1) a pigment and (2) an ethylene-vinyl acetate copolymer in the production of the colorant using a flushing method.
【請求項2】フラッシング法を用いる着色剤の製造にお
いて (1)顔料 (2)フミン酸、フミン酸塩又はフミン酸誘導体、およ
び (3)エチレン‐酢酸ビニル共重合体 を少なくとも含有させて行なうことを特徴とする着色剤
の製造方法。
2. A method for producing a colorant using a flushing method, which comprises at least (1) a pigment, (2) humic acid, a humic acid salt or a humic acid derivative, and (3) an ethylene-vinyl acetate copolymer. A method for producing a colorant, comprising:
JP60123751A 1985-06-07 1985-06-07 Colorant manufacturing method Expired - Fee Related JPH0745633B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP60123751A JPH0745633B2 (en) 1985-06-07 1985-06-07 Colorant manufacturing method
DE19863619078 DE3619078A1 (en) 1985-06-07 1986-06-06 Process for preparing a colorant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60123751A JPH0745633B2 (en) 1985-06-07 1985-06-07 Colorant manufacturing method

Publications (2)

Publication Number Publication Date
JPS61281160A JPS61281160A (en) 1986-12-11
JPH0745633B2 true JPH0745633B2 (en) 1995-05-17

Family

ID=14868408

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60123751A Expired - Fee Related JPH0745633B2 (en) 1985-06-07 1985-06-07 Colorant manufacturing method

Country Status (2)

Country Link
JP (1) JPH0745633B2 (en)
DE (1) DE3619078A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5273854A (en) * 1991-03-19 1993-12-28 Seiko Epson Corporation Liquid composition for developing electrophotography and process for producing the same
AU2003902064A0 (en) * 2003-04-30 2003-05-15 Australian Agricultural Chemicals Colouring agent for turf
AU2004234413B2 (en) * 2003-04-30 2010-04-22 Australian Agricultural Chemicals Colorant for foliage of humic and/or fulvic acid, and dye
JP4800783B2 (en) * 2006-02-13 2011-10-26 サカタインクス株式会社 Method for producing aqueous methyl violet lake pigment dispersion composition

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2360093B2 (en) * 1973-12-03 1979-11-29 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Process for the production of pigment preparations containing binders in flake or powder form
JPS5495633A (en) * 1978-01-13 1979-07-28 Toyo Ink Mfg Co Ltd Production of pigment composition
EP0012720B1 (en) * 1978-12-07 1982-01-27 Ciba-Geigy Ag Process for the production of pigment preparations
US4371642A (en) * 1981-07-07 1983-02-01 E. I. Du Pont De Nemours And Company Process for preparing polyolefin resin extended pigments
JPS59100168A (en) * 1982-12-01 1984-06-09 Ricoh Co Ltd Production of colorant

Also Published As

Publication number Publication date
DE3619078A1 (en) 1986-12-11
DE3619078C2 (en) 1989-11-16
JPS61281160A (en) 1986-12-11

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