JPH02175769A - Production of colorant for powder coating - Google Patents
Production of colorant for powder coatingInfo
- Publication number
- JPH02175769A JPH02175769A JP32899788A JP32899788A JPH02175769A JP H02175769 A JPH02175769 A JP H02175769A JP 32899788 A JP32899788 A JP 32899788A JP 32899788 A JP32899788 A JP 32899788A JP H02175769 A JPH02175769 A JP H02175769A
- Authority
- JP
- Japan
- Prior art keywords
- pigment
- colorant
- resin
- phase
- powder coating
- 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
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 37
- 239000000843 powder Substances 0.000 title claims abstract description 35
- 239000003086 colorant Substances 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000011248 coating agent Substances 0.000 title abstract description 21
- 239000000049 pigment Substances 0.000 claims abstract description 53
- 229920005989 resin Polymers 0.000 claims abstract description 43
- 239000011347 resin Substances 0.000 claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000004898 kneading Methods 0.000 claims description 13
- 239000008346 aqueous phase Substances 0.000 claims description 6
- 239000003960 organic solvent Substances 0.000 claims description 6
- 239000012071 phase Substances 0.000 claims description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 abstract description 12
- 239000011362 coarse particle Substances 0.000 abstract description 9
- 229920001225 polyester resin Polymers 0.000 abstract description 9
- 239000004645 polyester resin Substances 0.000 abstract description 9
- 239000002245 particle Substances 0.000 abstract description 8
- 239000002904 solvent Substances 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 238000001035 drying Methods 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 4
- 238000000227 grinding Methods 0.000 abstract description 3
- 239000011164 primary particle Substances 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 abstract 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 239000007787 solid Substances 0.000 description 8
- 239000003822 epoxy resin Substances 0.000 description 7
- 229920000647 polyepoxide Polymers 0.000 description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000002270 dispersing agent Substances 0.000 description 5
- 238000011010 flushing procedure Methods 0.000 description 5
- 239000004925 Acrylic resin Substances 0.000 description 4
- 229920000178 Acrylic resin Polymers 0.000 description 4
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 4
- 239000008199 coating composition Substances 0.000 description 4
- 238000004040 coloring Methods 0.000 description 4
- 229920001187 thermosetting polymer Polymers 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- 229920005789 ACRONAL® acrylic binder Polymers 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 235000000126 Styrax benzoin Nutrition 0.000 description 2
- 244000028419 Styrax benzoin Species 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 235000008411 Sumatra benzointree Nutrition 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 229960002130 benzoin Drugs 0.000 description 2
- 239000003431 cross linking reagent Substances 0.000 description 2
- 238000010908 decantation Methods 0.000 description 2
- 239000012975 dibutyltin dilaurate Substances 0.000 description 2
- 235000019382 gum benzoic Nutrition 0.000 description 2
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 2
- 239000012860 organic pigment Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 229920006122 polyamide resin Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920013716 polyethylene resin Polymers 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 239000001055 blue pigment Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 150000002688 maleic acid derivatives Chemical class 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- NYGZLYXAPMMJTE-UHFFFAOYSA-M metanil yellow Chemical group [Na+].[O-]S(=O)(=O)C1=CC=CC(N=NC=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 NYGZLYXAPMMJTE-UHFFFAOYSA-M 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 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
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000001054 red pigment Substances 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical compound [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は粉体塗料用着色剤の製造方法に関し、更に詳し
くは顔料の分散性に優れた粉体塗料用高濃度着色剤の提
供を目的としている。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a method for producing a colorant for powder coatings, and more specifically, an object of the present invention is to provide a highly concentrated colorant for powder coatings with excellent pigment dispersibility. It is said that
（従来の技術及びその問題点）
従来、粉体塗料は溶剤等の揮発成分を含まないことから
、溶剤型塗料に比較して塗装環境の改善、大気汚染の防
止、火災発生の危険低下等の多くの利点を有し、金属塗
装分野で広く使用されている。(Prior art and its problems) Powder coatings have traditionally been effective in improving the painting environment, preventing air pollution, and reducing the risk of fire compared to solvent-based coatings because they do not contain volatile components such as solvents. It has many advantages and is widely used in metal painting field.
これらの粉体塗料は被膜形成樹脂としてポリエステル樹
脂、エポキシ樹脂、アクリル樹脂等の熱硬化性樹脂やポ
リアミド樹脂、ポリエチレン樹脂、塩化ビニルｍ詣等の
熱可塑性樹脂を含み、更に必要に応じて硬化剤、着色剤
及び流動調整剤等の添加剤からなり、前記特徴を生かし
て家庭用電気製品、自動車等の部材の装篩に使用されて
いる。These powder coatings contain thermosetting resins such as polyester resins, epoxy resins, and acrylic resins as film-forming resins, and thermoplastic resins such as polyamide resins, polyethylene resins, and vinyl chloride resins, and if necessary, a curing agent. It consists of additives such as colorants and fluidity regulators, and is used to screen parts for household electrical appliances, automobiles, etc., taking advantage of the above characteristics.
上記の如き粉体塗料用の着色剤としては、顔料を分散剤
と混合したドライカラー、顔料を担体樹脂と高濃度に混
練したマスターバッチ等が広く使用されている。As colorants for powder coatings such as those mentioned above, dry colors in which pigments are mixed with dispersants, masterbatches in which pigments are kneaded with carrier resins at high concentrations, and the like are widely used.
これらの粉体塗料用着色剤は、乾燥顔料粉末と分散剤又
は担持樹脂とをロール、ニーダ−１押出機等の高剪断機
により溶融混練して顔料の分散を図っているが、−旦乾
燥した顔料粉末は粗大な二次凝集粒子が多数存在するた
め、これらの粗大粒子を全て数μｍ以下にまで再分散さ
せるのは非常に困難である。特に有機顔料の場合には顔
料の吸油量が大であるため高濃度微分散が困難である。These colorants for powder coatings are made by melt-kneading dry pigment powder and a dispersant or supporting resin using a high shear machine such as a roll or kneader 1 extruder to disperse the pigment. Since the resulting pigment powder contains a large number of coarse secondary agglomerated particles, it is extremely difficult to redisperse all of these coarse particles to a size of several μm or less. Particularly in the case of organic pigments, it is difficult to finely disperse them at high concentrations because of their large oil absorption.
従来の粉体塗料の着色においては粗大粒子の存在は勿論
無いことが好ましいが、形成される塗膜が比較的厚いた
め、それ程厳格には顔料の微分散が要求されなかった。In the conventional coloring of powder coatings, it is of course preferable that there be no coarse particles, but since the coating film formed is relatively thick, fine dispersion of pigments has not been so strictly required.
これに対して近年に至っては粉体塗料の塗膜の薄膜化傾
向が強く、薄い塗膜の場合には十分な隠蔽力を塗膜に与
えるため着色剤を高濃度に使用する必要があり、着色剤
に分散不良の粗大粒子が存在すると、塗装時に塗膜のハ
ジキ現象が発生し、満足出来る均一な薄い塗膜が形成出
来ないという問題が生じている。On the other hand, in recent years, there has been a strong tendency for powder coating films to become thinner, and in the case of thinner coatings, it is necessary to use high concentrations of colorants in order to provide the coating with sufficient hiding power. If poorly dispersed coarse particles are present in the colorant, a problem arises in that a repelling phenomenon occurs in the paint film during coating, making it impossible to form a satisfactorily uniform and thin paint film.
従って本発明の目的は顔料が高濃度に分散した粉体塗料
用着色剤を提供することである。Accordingly, an object of the present invention is to provide a colorant for powder coatings in which pigments are dispersed at a high concentration.
（問題点を解決するための手段） 上記目的は以下の本発明によって達成される。(Means for solving problems) The above objects are achieved by the present invention as described below.
すなわち、本発明は、顔料の水性ペーストと樹脂溶液と
を混練して水性相の顔料を樹脂溶液相に移行させ、しか
る後に水及びを機溶剤を除去することを順次追加する粉
体塗料用着色剤の製造方法である。That is, the present invention provides a coloring method for powder coatings in which an aqueous pigment paste and a resin solution are kneaded to transfer the pigment in the aqueous phase to the resin solution phase, and then the water and organic solvent are sequentially removed. This is a method for producing the agent.
（作 用）
二次凝集していない顔料の水性ペーストから、顔料の粉
末化工程を経ることなく、顔料を水相から樹脂相に移行
させることによって、粗大粒子を含有しない粉体塗料用
着色剤が提供され、該着色剤により粉体塗料を着色する
ことによって、高濃度で均一に着色され、且つ平滑性に
優れた薄い塗膜が容易に形成出来る
（好ましい実施態様）
次に好ましい実施態様を挙げて本発明を更に具体的に説
明する。(Function) A coloring agent for powder coatings that does not contain coarse particles by transferring the pigment from the aqueous phase to the resin phase from an aqueous paste of non-secondary agglomerated pigment without going through the pigment powdering process. By coloring the powder coating with the colorant, a thin coating film that is uniformly colored with high concentration and has excellent smoothness can be easily formed (preferred embodiment). The present invention will now be described in more detail.
本発明で使用する顔料の水性ペーストとは、顔料を水相
中で製造し、その後、乾燥することなく１！過して得た
水性ペーストである。このようなペースト状の顔料は乾
燥工程を経ることがないので、顔料粒子は二次凝集する
ことなく一次粒子のままで殆どの場合に１０μｍを越え
る粒子は含有していない。The aqueous paste of pigment used in the present invention is one in which the pigment is produced in an aqueous phase and then 1! without drying. It is an aqueous paste obtained by Since such a paste-like pigment does not undergo a drying process, the pigment particles remain primary particles without secondary agglomeration, and in most cases do not contain particles larger than 10 μm.
本発明で使用する顔料としてはアゾ顔料、フタロシアニ
ン顔料、キナクリドン顔料、カーボンブラック顔料等従
来公知の顔料はいずれも使用でき、特に親油性の高い有
機顔料が好ましい。顔料の水性ペースト中の固形分は特
に限定されないが、固形分が低すぎると工程的に不経済
であり、又、固形分が高すぎると表面で乾燥が生じて二
次凝集粒子が生じる恐れがあり、従って好ましい固形分
の範囲は２５乃至８０重量％の濃度である。As the pigment used in the present invention, any conventionally known pigment such as an azo pigment, a phthalocyanine pigment, a quinacridone pigment, or a carbon black pigment can be used, and highly lipophilic organic pigments are particularly preferred. The solid content in the aqueous pigment paste is not particularly limited, but if the solid content is too low, the process will be uneconomical, and if the solid content is too high, drying will occur on the surface and there is a risk of secondary agglomerated particles. Therefore, the preferred solids content range is a concentration of 25 to 80% by weight.
本発明において使用する樹脂としては従来顔料の分散剤
として使用されている樹脂分散剤やマスターバッチの担
体樹脂として使用されている樹脂がいずれも使用するこ
とができる。例えば、分散剤としては低分子量ポリエチ
レン、低分子量ポリプロピレン、各種ワックス等が使用
でき、又、樹脂としてはアクリル樹脂、スチレン樹脂、
アクリル−スチレン樹脂、ポリエステル樹脂、フェノー
ル樹脂、ロジン変性マレイン酸樹脂、石油樹脂、エポキ
シ樹脂、ＡＢＳ樹脂、ポリカーボネート樹脂、ポリ塩化
ビニル樹脂、ポリ酢酸ビニル樹脂、アルキド樹脂、熱硬
化性ポリエステル樹脂、熱硬化性アクリル樹脂等が挙げ
られる。As the resin used in the present invention, any of the resin dispersants conventionally used as dispersants for pigments and the resins conventionally used as carrier resins for masterbatches can be used. For example, as a dispersant, low molecular weight polyethylene, low molecular weight polypropylene, various waxes, etc. can be used, and as a resin, acrylic resin, styrene resin,
Acrylic-styrene resin, polyester resin, phenolic resin, rosin-modified maleic acid resin, petroleum resin, epoxy resin, ABS resin, polycarbonate resin, polyvinyl chloride resin, polyvinyl acetate resin, alkyd resin, thermosetting polyester resin, thermosetting acrylic resin and the like.
本発明方法は、上記の如き顔料の水性ペーストと上記の
如き樹脂の溶液とをフラッシャ−の如き混練機中で混練
して、水相中の顔料を樹脂溶液中に移行させる方法であ
り、使用する有機溶剤としては、トルエン、キシレン等
の水と混和しない有機溶剤を用いる。有機溶剤の使用量
は樹脂が液化するのに必要な量であり、樹脂濃度が１０
乃至９０％程度になる割合で使用するのが一般的である
。フラッシャ−中での混練は常温で行ってもよいが、通
常は加熱しなくともフラッシャ−内の摩擦力により５０
乃至８０℃程度に上昇する。混練時の温度は常温乃至１
３０℃程度であり、水の沸点以上の温度で行う場合には
密閉式の加圧フラッシャ−を使用するのが好ましい。The method of the present invention is a method in which an aqueous paste of the pigment as described above and a solution of the resin as described above are kneaded in a kneader such as a flasher to transfer the pigment in the aqueous phase into the resin solution. The organic solvent to be used is an organic solvent that is immiscible with water, such as toluene or xylene. The amount of organic solvent used is the amount necessary for the resin to liquefy, and the resin concentration is 10
It is generally used at a ratio of about 90%. Kneading in the flasher may be carried out at room temperature, but normally the kneading process may be carried out at room temperature due to the frictional force within the flasher.
The temperature rises to about 80°C. The temperature during kneading is room temperature to 1
The temperature is about 30° C., and when the temperature is higher than the boiling point of water, it is preferable to use a closed pressure flasher.
フラッシャ−に添加する顔料の水性ペースト及び樹脂溶
液の混合比は顔料の水性ペーストの固形分、樹脂溶液の
濃度等によって変化するが、得られる粉体塗料用着色剤
の顔料濃度が２０乃至８０重量％になる割合が好ましい
。The mixing ratio of the aqueous pigment paste and resin solution added to the flasher varies depending on the solid content of the aqueous pigment paste, the concentration of the resin solution, etc., but the pigment concentration of the resulting powder coating colorant is between 20 and 80% by weight. % is preferred.
フラッシングに際してはフラッシャ−の容量−杯に顔料
の水性ペーストと樹脂溶液とをチャージしてもよいが、
好ましい方法はチャージを数回に分けて行う方法である
。すなわち、１回目のチャージにおいてフラッシャ−の
容量の約１１５乃至１／２程度の容積に両者をチャージ
してフラッシングを行い、分離した水を排出し、次いで
同様の量のチャージを行い、フラッシングした接水を排
出する。このように分離した水を排出しながら行うこと
によってフラッシング効率を著しく高めることができる
。When flushing, the capacity of the flasher may be charged with an aqueous pigment paste and a resin solution;
A preferred method is to divide the charging into several times. That is, in the first charge, both are charged to about 115 to 1/2 the capacity of the flasher, flushing is performed, the separated water is discharged, and then the same amount of charging is performed, and the flushed contact is Drain the water. By performing the flushing while discharging the separated water, the flushing efficiency can be significantly increased.
最後のフラッシングが完了したら、残留している水を除
去し、好ましくは減圧下で残留水と有機溶剤を除去する
ことによりて所望の粉体塗料用着色剤が得られる。After the final flushing is completed, the desired powder coating colorant is obtained by removing the remaining water and removing the residual water and organic solvent, preferably under reduced pressure.
本発明の着色剤で着色される粉体樹脂は、被膜形成樹脂
としてポリエステル樹脂、エポキシ樹脂、アクリル樹脂
等の熱硬化性樹脂やポリアミド樹脂、ポリエチレン樹脂
、塩化ビニル樹脂等の熱可塑性樹脂を含み、更に必要に
応じて硬化剤及び流動調整剤等の添加剤からなるもので
あり、これらの成分からなる粉体塗料はいずれも公知で
あり、本発明はこれらの公知の粉体塗料のいずれにも適
用可能である。The powder resin colored with the colorant of the present invention includes thermosetting resins such as polyester resins, epoxy resins, and acrylic resins, and thermoplastic resins such as polyamide resins, polyethylene resins, and vinyl chloride resins as film-forming resins. Further, if necessary, it may contain additives such as a curing agent and a fluidity regulator. Powder coatings made of these components are all known, and the present invention does not apply to any of these known powder coatings. Applicable.
（効 果）
以上の如き本発明によれば、二次凝集していない顔料の
水性ペーストから、顔料の粉末化工程を経ることなく、
顔料を水相から樹脂相に移行させることによって、粗大
粒子を含有しない粉体塗料用着色剤が提供され、該着色
剤により粉体塗料を着色することによって、高濃度で均
一に着色され、且つ平滑性に優れた薄い塗膜が容易に形
成出来る
（実施例）
次に実施例を挙げて本発明を更に具体的に説明する。尚
、文中、部又は％とあるのは特に断りのない限り重量基
準である。(Effects) According to the present invention as described above, from an aqueous paste of pigments that are not secondary agglomerated, it is possible to produce pigments without going through a process of powdering the pigments.
By transferring the pigment from the aqueous phase to the resin phase, a colorant for powder coatings that does not contain coarse particles is provided, and by coloring the powder coating with the colorant, it is uniformly colored with high concentration, and A thin coating film with excellent smoothness can be easily formed (Example) Next, the present invention will be explained in more detail with reference to Examples. In the text, parts or percentages are based on weight unless otherwise specified.
実施例１
エピクロルヒドリン−ビスフェノールエーテル型エポキ
シ樹脂（油化シェル社製、エピコート＃１００４）の６
０％塩化メチレン溶液１，５００部をフラッシャ−に入
れ、続いてジスアゾイエローの水性プレスケーキ（固形
分３５％）２，０００部を投入し、水冷下で３０分間良
く攪拌した。分離した水分をデカンチーシランにより除
去した。その後更に同じ樹脂溶液１，５００部を追加し
、更に同じプレスケーキ１，４００部を投入した。続い
て水冷下に２０分間良く混練後、分離した水分を除去し
、更に３０分間混練を行った。Example 1 Epichlorohydrin-bisphenol ether type epoxy resin (manufactured by Yuka Shell Co., Ltd., Epicoat #1004) 6
1,500 parts of 0% methylene chloride solution was placed in a flasher, followed by 2,000 parts of disazo yellow aqueous press cake (solid content 35%), and the mixture was stirred well for 30 minutes under water cooling. The separated water was removed using decanthisilane. Thereafter, 1,500 parts of the same resin solution was added, and 1,400 parts of the same press cake were added. Subsequently, after thoroughly kneading for 20 minutes while cooling with water, the separated water was removed, and kneading was continued for an additional 30 minutes.
その後加熱減圧下（１００℃、７０ｃｍＨｇ）で２時間
混線を行いながら水及び溶剤を除去した。Thereafter, the water and solvent were removed while heating and under reduced pressure (100° C., 70 cmHg) and crosstalk for 2 hours.
その後冷却及び粉砕して黄色の本発明のベレット状粉体
塗料用着色剤を得た。Thereafter, it was cooled and pulverized to obtain a yellow coloring agent for a pellet-shaped powder coating of the present invention.
上記着色剤を塩化メチレンに溶解して光学顕微鏡（４０
０倍）で顔料の分散性を調べたところ、５μｍ以上の粗
大粒子は認められなかった。The above coloring agent was dissolved in methylene chloride and was
When the dispersibility of the pigment was examined at a magnification of 0 times), no coarse particles of 5 μm or more were observed.
実施例２
ポリエステル樹脂（日本エステル社製、ＥＲ−６６１０
）の６０％酢酸エチル溶液１，０００部をフラッシャ−
に入れ、続いてシアニンブルー顔料の水性プレスケーキ
（固形分３５％）１，０５０部を投入し、常温で３０分
間良く攪拌した。分離した水分をデカンテーションによ
り除去した。Example 2 Polyester resin (manufactured by Nippon Ester Co., Ltd., ER-6610
) of 60% ethyl acetate solution in a flasher.
Then, 1,050 parts of an aqueous press cake of cyanine blue pigment (solid content 35%) was added and stirred well for 30 minutes at room temperature. The separated water was removed by decantation.
その後更に同じ樹脂溶液１，０００部を追加し、更に同
じプレスケーキ１，０５０部を投入した。Thereafter, 1,000 parts of the same resin solution was added, and 1,050 parts of the same press cake were added.
続いて常温で３０分間に良く混練後、分離した水分を除
去し、更に同じ樹脂温ｔｉ１，２５０部を追加し、３０
分間混線を行った後分離した水分を除去した。その後加
熱減圧下（１３０℃、７０ｃｍＨｇ）で２時間混練を行
いながら水及び溶剤を除去した。その後冷却及び粉砕し
て青色の本発明のベレット状粉体塗料用着色剤を得た。Subsequently, after kneading well for 30 minutes at room temperature, the separated water was removed, and 1,250 parts of the same resin temperature was added, and 30
After mixing for a minute, the separated water was removed. Thereafter, water and the solvent were removed while kneading was carried out under heating and reduced pressure (130° C., 70 cmHg) for 2 hours. Thereafter, it was cooled and pulverized to obtain a blue coloring agent for a pellet-shaped powder coating of the present invention.
上記着色剤を酢酸エチルに溶解して光学顕微鏡（４００
倍）で顔料の分散性を調べたところ、５μｍ以上の粗大
粒子は認められなかった。The above coloring agent was dissolved in ethyl acetate, and the colorant was dissolved in ethyl acetate.
When the dispersibility of the pigment was examined using 100% of the total weight of the pigment, no coarse particles of 5 μm or more were observed.
実施例３
ポリエステル樹脂（大日本インキ社製、ファインディッ
クＭ８５００）の５０％トルエン／メチルエチルケトン
（８０／２０）溶液１，２００部をフラッシャ−に入れ
、続いてモノアゾレッド顔料の水性プレスケーキ（固形
分４０％）１，２００部を没入し、常温で３５分間良く
攪拌した。分離した水分をデカンテーションにより除去
した後、その後更に同じ樹脂溶液１，０００部を追加し
、更に同じプレスゲ−キロ００部を投入した。Example 3 1,200 parts of a 50% toluene/methyl ethyl ketone (80/20) solution of a polyester resin (manufactured by Dainippon Ink Co., Ltd., Finedic M8500) was placed in a flasher, followed by an aqueous presscake of monoazo red pigment (solid content). 40%) was added thereto and stirred well for 35 minutes at room temperature. After the separated water was removed by decantation, 1,000 parts of the same resin solution was added and then 00 parts of the same press gel was added.
続いて常温で３０分間に良く混練後、分離した水分を除
去し、更に同じ樹脂溶液１，４００部を追加し、常温で
３０分間混練を行った後分離した水分を除去した。その
後加熱減圧下（１３５℃、７０ｃｍＨｇ）で２時間混練
を行いながら水及び溶剤を除去した。その後冷却及び粉
砕して赤色の本発明のベレット状粉体塗料用着色剤を得
た。Subsequently, after thoroughly kneading at room temperature for 30 minutes, the separated water was removed, and 1,400 parts of the same resin solution was further added, and after kneading at room temperature for 30 minutes, the separated water was removed. Thereafter, water and the solvent were removed while kneading the mixture under heating and reduced pressure (135° C., 70 cmHg) for 2 hours. Thereafter, it was cooled and pulverized to obtain a red coloring agent for a pellet-like powder coating of the present invention.
上記着色剤をトルエンに溶解して光学顕微鏡（４００倍
）で顔料の分散性を調べたところ、５μｍ以上の粗大粒
子は認められなかフた。When the above colorant was dissolved in toluene and the dispersibility of the pigment was examined using an optical microscope (400x magnification), no coarse particles of 5 μm or more were observed.
使用例１
ポリエステル樹ＪＡＭ （ＥＲ−６８００、日本エステ
ル社製〉 １００部硬化剤
（クロスリンキングエージェントＵｌ−６、バイエル社
製） ２６部エポキシ樹脂（ＥＰ１
００４、油化シェル社製）８．３４部
ジブチルチンジラウレート（硬化促進剤）０．５部
流れ調整剤（アクロナール４Ｆ、 ＢＡＳＦ社製）１．
６６部
ベンゾイン １．６６部実施例１の
着色剤 ２０．０部弗素樹脂粒子（ユノン
Ｐ−３００、半径１０μｍ以下７０％もの、日本パルサ
ー社製） １０部上記成分をスーパーミキサーで均
一に混合し、押出機にて加熱溶融混練押出し、冷却後、
アトマイザ−で平均粒径約４０μｍにまで粉砕する。更
にこの中に粉末１００部当り０．５部の割合で流れ調整
剤（微粉末シリカ）を加え均一に混合して着色粉体塗料
組成物を得た。Usage example 1 Polyester tree JAM (ER-6800, manufactured by Nippon Ester Co., Ltd.) 100 parts Curing agent (Cross-linking agent Ul-6, manufactured by Bayer) 26 parts Epoxy resin (EP1
004, manufactured by Yuka Shell Co., Ltd.) 8.34 parts Dibutyltin dilaurate (curing accelerator) 0.5 parts Flow regulator (Acronal 4F, manufactured by BASF Corporation) 1.
66 parts Benzoin 1.66 parts Coloring agent of Example 1 20.0 parts Fluororesin particles (Yunon P-300, radius 10 μm or less, 70%, manufactured by Nippon Pulsar Co., Ltd.) 10 parts The above ingredients were mixed uniformly with a super mixer. , After heating, melting, kneading and extrusion using an extruder and cooling,
Grind with an atomizer to an average particle size of about 40 μm. Furthermore, a flow control agent (finely powdered silica) was added to the mixture at a rate of 0.5 part per 100 parts of powder and mixed uniformly to obtain a colored powder coating composition.
使用例２
ポリエステル樹脂（ファインデイックＭ８５２０、大日
本インキ化学社製） ５０部エポキシ樹脂（
Ｒ−３０４、玉石エポキシ社製）５０部
硬化促進剤（キュアゾールＣｌ７Ｚ、四国化成社製）
０．３部流れ調整剤（アクロ
ナール４Ｆ、ＢＡＳＦ社製）１部
実施例１の着色剤 １５．０部上記成分を
使用し他は使用例１と同様にして着色粉体塗料組成物を
得た。Usage example 2 Polyester resin (FINDIC M8520, manufactured by Dainippon Ink Chemical Co., Ltd.) 50 parts Epoxy resin (
R-304, manufactured by Tamaishi Epoxy Co., Ltd.) 50 parts Curing accelerator (Curesol Cl7Z, manufactured by Shikoku Kasei Co., Ltd.)
0.3 parts flow regulator (Acronal 4F, manufactured by BASF) 1 part colorant of Example 1 15.0 parts A colored powder coating composition was obtained in the same manner as in Use Example 1 except that the above components were used. .
使用例３
ポリエステル樹脂（ＥＲ−６８２０、日本エステル社製
） １００部硬化剤（クロス
リンキングエージェントＩＪＩ−８１バイ工ル社製）
２６部エポキシ樹脂（ＡＥＲ−６６４
Ｐ、旭化成社製）８．３４部
ジブチルチンジラウレート（硬化促進剤）０．５部
流れ調整剤（アクロナール４Ｆ、 ＢＡＳＦ社製）１．
６６部
ベンゾイン １６６部実施例１の着
色剤 １０．０部上記成分を使用し他は使
用例１と同様にして着色粉体塗料組成物を得た。Usage example 3 Polyester resin (ER-6820, manufactured by Nippon Ester Co., Ltd.) 100 parts Curing agent (cross-linking agent IJI-81 manufactured by Baikuru Co., Ltd.)
26 parts epoxy resin (AER-664
P, manufactured by Asahi Kasei Corporation) 8.34 parts dibutyltin dilaurate (hardening accelerator) 0.5 parts Flow regulator (Acronal 4F, manufactured by BASF Corporation) 1.
66 parts Benzoin 166 parts Colorant of Example 1 10.0 parts A colored powder coating composition was obtained in the same manner as in Use Example 1 except that the above components were used.
上記使用例の粉体塗料組成物を用いて、洗浄した軟鋼板
に静電スプレーガンで塗布し１９０℃で２０分間硬化さ
せ、厚さ１０乃至１５μｍの塗膜を形成したところ、隠
蔽力、濃度及び鮮明性に優れ且つピンホールやクレータ
−の全くない優れた平滑性及び光沢の塗膜が得られた。Using the powder coating composition of the above usage example, it was applied to a cleaned mild steel plate with an electrostatic spray gun and cured at 190°C for 20 minutes to form a coating film with a thickness of 10 to 15 μm. A coating film with excellent clarity, smoothness and gloss with no pinholes or craters was obtained.
Claims (1)
相の顔料を樹脂溶液相に移行させ、しかる後に水及び有
機溶剤を除去することを特徴とする粉体塗料用着色剤の
製造方法。（２）顔料の水性ペーストと樹脂溶液とを順
次追加する請求項１に記載の方法。(1) A method for producing a colorant for powder coatings, which comprises kneading an aqueous pigment paste and a resin solution to transfer the pigment in the aqueous phase to the resin solution phase, and then removing water and the organic solvent. . 2. The method of claim 1, wherein the aqueous pigment paste and the resin solution are added sequentially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63328997A JPH0786181B2 (en) | 1988-12-28 | 1988-12-28 | Method for producing colorant for powder coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63328997A JPH0786181B2 (en) | 1988-12-28 | 1988-12-28 | Method for producing colorant for powder coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02175769A true JPH02175769A (en) | 1990-07-09 |
| JPH0786181B2 JPH0786181B2 (en) | 1995-09-20 |
Family
ID=18216451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63328997A Expired - Lifetime JPH0786181B2 (en) | 1988-12-28 | 1988-12-28 | Method for producing colorant for powder coating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0786181B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001262073A (en) * | 2000-03-01 | 2001-09-26 | Clariant Gmbh | Preparation of pigmented powder coating material |
| JP2004352965A (en) * | 2003-03-31 | 2004-12-16 | Dainippon Ink & Chem Inc | Kneaded material for aqueous pigment dispersion and process for producing aqueous pigment dispersion |
| US7666338B2 (en) | 2004-03-25 | 2010-02-23 | Ppg Industries Ohio, Inc. | Focused heat extrusion process for manufacturing powder coating compositions |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS547288A (en) * | 1977-06-20 | 1979-01-19 | Hitachi Ltd | Observation window for sealed container |
| JPS6031857A (en) * | 1983-08-01 | 1985-02-18 | Dai Ichi High Frequency Co Ltd | Narrow mouth container having resing lining formed to its inner surface and its preparation |
| JPS6361349A (en) * | 1986-09-01 | 1988-03-17 | Pfu Ltd | Interface control system |
-
1988
- 1988-12-28 JP JP63328997A patent/JPH0786181B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS547288A (en) * | 1977-06-20 | 1979-01-19 | Hitachi Ltd | Observation window for sealed container |
| JPS6031857A (en) * | 1983-08-01 | 1985-02-18 | Dai Ichi High Frequency Co Ltd | Narrow mouth container having resing lining formed to its inner surface and its preparation |
| JPS6361349A (en) * | 1986-09-01 | 1988-03-17 | Pfu Ltd | Interface control system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001262073A (en) * | 2000-03-01 | 2001-09-26 | Clariant Gmbh | Preparation of pigmented powder coating material |
| JP2004352965A (en) * | 2003-03-31 | 2004-12-16 | Dainippon Ink & Chem Inc | Kneaded material for aqueous pigment dispersion and process for producing aqueous pigment dispersion |
| JP4586338B2 (en) * | 2003-03-31 | 2010-11-24 | Ｄｉｃ株式会社 | Kneaded material for aqueous pigment dispersion and method for producing aqueous pigment dispersion |
| US7666338B2 (en) | 2004-03-25 | 2010-02-23 | Ppg Industries Ohio, Inc. | Focused heat extrusion process for manufacturing powder coating compositions |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0786181B2 (en) | 1995-09-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1204005B1 (en) | Use of coated pigment granulates in electrophotographic toners and developers, powder paints and ink-jet inks | |
| TWI454536B (en) | Method of producing water-based pigment dispersion and ink for ink-jet recording | |
| AU2007350580B2 (en) | Method for preparing paints and inks using a resin coated pigment | |
| US4036652A (en) | Encapsulated pigments | |
| US4166811A (en) | Pigment compositions and methods of preparation | |
| JP4895502B2 (en) | Pigment dispersion and paint | |
| JP2008031349A (en) | Manufacturing method of powder coating composition | |
| US4391648A (en) | Particulate pigment compositions | |
| US4260424A (en) | Method for preparing a pigment composition | |
| CA1207274A (en) | Pigment-containing base composition | |
| EP1648968A1 (en) | Solid pigment preparations and the dispersions thereof in organic solvents, method for the production thereof, and use of the same | |
| JP2006500448A (en) | Solid pigment preparations with surfactant additives based on alkoxylated bisphenols | |
| JPH02175769A (en) | Production of colorant for powder coating | |
| US6331581B1 (en) | Method for color matching of powder coating composition and process for the preparation thereof | |
| JP2004010778A (en) | Readily dispersible pigment composition and method for producing the same | |
| JP3931566B2 (en) | Matte composition | |
| JPH02175770A (en) | Production of pigment-resin composition | |
| JP4872146B2 (en) | Solid color compound and manufacturing method | |
| JP2019156898A (en) | Manufacturing method of fine resin treatment organic pigment, fine resin treatment organic pigment, coloring dispersion, coloring resin composition, product and coloring resin molded body | |
| JPH069906A (en) | Production of filler compound and its use | |
| JP4358930B2 (en) | Curing agent composition and method for producing the same | |
| JPS61163939A (en) | Surface modification of powder coating particle and suspension composition | |
| JP4131506B2 (en) | Method for producing water-dispersed powder coating | |
| JP2012136640A (en) | Method for production of composition for fluorine-containing powder coating material | |
| JPH07100770B2 (en) | Method for producing carbon black paint |