JPH04328138A - Granulate colorant and production thereof - Google Patents

Granulate colorant and production thereof

Info

Publication number
JPH04328138A
JPH04328138A JP9856291A JP9856291A JPH04328138A JP H04328138 A JPH04328138 A JP H04328138A JP 9856291 A JP9856291 A JP 9856291A JP 9856291 A JP9856291 A JP 9856291A JP H04328138 A JPH04328138 A JP H04328138A
Authority
JP
Japan
Prior art keywords
fatty acid
coloring agent
colorant
fixing agent
thermoplastic 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.)
Pending
Application number
JP9856291A
Other languages
Japanese (ja)
Inventor
Shiro Komiyama
小見山 四朗
Shinichi Ito
真一 伊藤
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.)
DIC Corp
Original Assignee
Dainippon Ink and Chemicals 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 Dainippon Ink and Chemicals Co Ltd filed Critical Dainippon Ink and Chemicals Co Ltd
Priority to JP9856291A priority Critical patent/JPH04328138A/en
Publication of JPH04328138A publication Critical patent/JPH04328138A/en
Pending legal-status Critical Current

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  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Abstract

PURPOSE:To provide a granulate colorant capable of being produced in simple processes at a low cost and capable of being readily handled, by forming the melted coating layer of an anchoring agent on the surfaces of thermoplastic resin granules and subsequently adhering a powdery colorant containing a dye or pigment on the coating layer. CONSTITUTION:(A) Thermoplastic resin granules preferably having granule diameters of 1-10 mm and not melting at 100 deg.C (e.g. high density polyethylene), (B) an anchoring agent comprising B1: 100pts.wt. of a multi-hydric alcohol fatty acid ester solid at the ordinary temperature, preferably the glyceryl ester of a hydroxyl group-containing fatty acid (e.g. hydroxyl stearic acid monoglyceride) and B2: 5-200 pts.wt. of an inorganic fine particles, preferably hydrophobic synthetic silica having an average particle diameter of 10-30mum, (C) a powdery colorant containing C1: a dye or pigment and C2: a dispersant (preferably a metal soap) are stirred at a temperature not melting the component A and higher than the melting point of the component B1 to form an anchoring agent- containing colorant layer on the surface of the component A, followed by stirring and cooling to provide a granulate colorant.

Description

【発明の詳細な説明】[Detailed description of the invention]

【0001】0001

【産業上の利用分野】本発明は染顔料の分散性に優れ、
汚染性の少ない熱可塑性樹脂用着色剤に関する。
[Industrial Application Field] The present invention has excellent dispersibility of dyes and pigments,
This invention relates to a coloring agent for thermoplastic resins that causes less staining.

【0002】0002

【従来の技術】従来、熱可塑性樹脂の着色には、染顔料
を金属石鹸等と混合又は練肉し、粉末状としたドライカ
ラー、樹脂中に高濃度に染顔料を分散させ、ペレット状
、板状、フレーク状などに賦形したマスターバッチカラ
ー等の着色剤が主に用いられている。
[Prior Art] Conventionally, for coloring thermoplastic resins, dyes and pigments are mixed or kneaded with metal soaps, etc., and powdered dry colors, dyes and pigments are dispersed in resin at a high concentration, and pellets, etc. Coloring agents such as masterbatch colors shaped into plate or flake shapes are mainly used.

【0003】0003

【発明が解決しようとする課題】しかし、ドライカラー
は、顔料濃度は高く、着色コストが安価な着色剤である
が、嵩が不安定で、しかも容器、機材等に付着し易いの
で秤量性が悪く、かつ飛散し易いので環境を汚染させる
という課題があった。
[Problems to be Solved by the Invention] However, although dry color is a coloring agent that has a high pigment concentration and is low in coloring cost, it has unstable bulk and tends to adhere to containers, equipment, etc., so it has poor weighability. There was a problem that it polluted the environment because it was bad and easily scattered.

【0004】又、マスターバッチカラーは、非飛散性、
分散性に優れ、比較的嵩が一定で秤量性の良いカラーで
あるが、この物の生産は樹脂と染顔料とを樹脂の加熱溶
融下で混練し、取り扱い易い形状に賦形するという長い
工程を経る為、生産コストが著しく高く、しかもマスタ
ーバッチの担体樹脂や染顔料の熱変質を招き易く、時に
は被着色樹脂の物性を減じさせるおそれがあった。
[0004] Also, masterbatch color has non-scattering properties,
It is a color with excellent dispersibility, relatively constant bulk, and good weighability, but the production of this product involves a long process of kneading resin and dye and pigment while the resin is heated and melted, and shaping it into an easy-to-handle shape. As a result, the production cost is extremely high, and the carrier resin and dye/pigment of the masterbatch are likely to undergo thermal deterioration, which may sometimes reduce the physical properties of the resin to be colored.

【0005】[0005]

【課題を解決する為の手段】本発明者等は、この様な状
況に鑑みて鋭意研究した結果、熱可塑性樹脂粒子の表面
上に、多価アルコール脂肪酸エステルおよび無機質微粒
子を含有してなる固着剤の溶融被覆層を形成した後、染
顔料を含有してなる粉末状の着色剤を該溶融被覆層に固
着せしめてなる粒状着色剤は、生産工程が短く、生産が
容易で、安価であるにもかかわらず、整粒が容易で着色
剤が脱落しにくく、秤量性および非飛散性に優れて取扱
い易いことを見い出し、本発明を完成するに至った。
[Means for Solving the Problems] In view of the above circumstances, the inventors of the present invention have conducted intensive research and have found that the present inventors have developed a method of fixing particles containing polyhydric alcohol fatty acid ester and inorganic fine particles on the surface of thermoplastic resin particles. After forming a molten coating layer of the agent, a powdered coloring agent containing a dye and pigment is fixed to the molten coating layer to produce a granular colorant, which has a short production process, is easy to produce, and is inexpensive. Nevertheless, the present inventors have found that the particles can be easily sized, the colorant does not easily fall off, they have excellent weighability and non-scattering properties, and are easy to handle, leading to the completion of the present invention.

【0006】即ち、本発明は、熱可塑性樹脂粒子からな
る中心核と、それを包囲する固着剤含有着色剤層とから
なる粒状着色剤において、固着剤が常温固形の多価アル
コール脂肪酸エステルおよび無機質微粒子を含有してな
るものであることを特徴とする粒状着色剤、
That is, the present invention provides a granular coloring agent consisting of a central core made of thermoplastic resin particles and a coloring agent layer containing a fixing agent surrounding the core, in which the fixing agent is a polyhydric alcohol fatty acid ester that is solid at room temperature and an inorganic material. A granular colorant characterized by containing fine particles,

【0007
】熱可塑性樹脂粒子の表面上に、常温固形の多価アルコ
ール脂肪酸エステルおよび無機質微粒子を含有してなる
固着剤の溶融被覆層を形成した後、染顔料を含有してな
る粉末状の着色剤を該溶融被覆層に固着せしめることを
特徴とする粒状着色剤の製法、および
0007
] After forming a molten coating layer of a fixing agent containing a polyhydric alcohol fatty acid ester that is solid at room temperature and inorganic fine particles on the surface of the thermoplastic resin particles, a powdered coloring agent containing dyes and pigments is applied. A method for producing a granular colorant characterized by fixing it to the molten coating layer, and

【0008】熱可
塑性樹脂粒子と、常温固形の多価アルコール脂肪酸エス
テルおよび無機質微粒子を含有してなる固着剤と、染顔
料を含有してなる粉末状着色剤とを熱可塑性樹脂が溶融
しない温度以下で、かつ多価アルコール脂肪酸エステル
融点以上の温度で攪拌して、熱可塑性樹脂粒子の表面上
に固着剤含有着色剤層を形成させ加え、攪拌冷却するこ
とを特徴とする粒状着色剤の製法を提供するものである
[0008] Thermoplastic resin particles, a fixing agent containing a polyhydric alcohol fatty acid ester solid at room temperature and inorganic fine particles, and a powdered coloring agent containing a dye and pigment are mixed at a temperature below which the thermoplastic resin does not melt. and stirring at a temperature higher than the melting point of the polyhydric alcohol fatty acid ester to form a colorant layer containing a fixing agent on the surface of the thermoplastic resin particles, followed by stirring and cooling. This is what we provide.

【0009】本発明で中心核として用いる熱可塑性樹脂
粒子としては、多価アルコール脂肪酸エステルの融点で
溶融しない常温固形の樹脂粒子がいずれも使用でき、な
かでも100℃で溶融しない樹脂粒子が好ましい。その
代表例としては、高密度ポリエチレン、ポリプロピレン
、ポリスチレン、ポリメチルメタアクリレート、アクリ
ロニトリルスチレン共重合体、アクリロニトリルスチレ
ンブタジエン共重合体、ナイロン6、ナイロン66、ナ
イロン12などが挙げられる。粒子の形状としては円柱
状又は球状が好ましく、粒子径としては1〜10mmの
範囲が好ましい。
As the thermoplastic resin particles used as the core in the present invention, any resin particles that are solid at room temperature that do not melt at the melting point of the polyhydric alcohol fatty acid ester can be used, and among them, resin particles that do not melt at 100° C. are preferred. Typical examples include high density polyethylene, polypropylene, polystyrene, polymethyl methacrylate, acrylonitrile styrene copolymer, acrylonitrile styrene butadiene copolymer, nylon 6, nylon 66, nylon 12, and the like. The shape of the particles is preferably cylindrical or spherical, and the particle diameter is preferably in the range of 1 to 10 mm.

【0010】本発明で使用する固着剤は、常温固形の多
価アルコール脂肪酸エステルと無機質微粒子とを含有し
てなる混合物であり、これを用いると着色剤の固着が完
全になされ、固着されない着色剤だけの固まりなどが発
生しない。
The fixing agent used in the present invention is a mixture containing a polyhydric alcohol fatty acid ester that is solid at room temperature and inorganic fine particles, and when this is used, the colorant is completely fixed, and the colorant is not fixed. There will be no lumps or lumps.

【0011】ここで用いる多価アルコール脂肪酸エステ
ルとしては、常温固形のものがいずれも使用でき、なか
でもヒドロキシル基を含有するものが染顔料の分散性に
優れる点で好ましい。
[0011] As the polyhydric alcohol fatty acid ester used here, any one that is solid at room temperature can be used, and among them, those containing hydroxyl groups are preferred because they have excellent dispersibility of dyes and pigments.

【0012】これら多価アルコール脂肪酸エステルの具
体例としては、モンタン酸エチレングリコールモノエス
テル、モンタン酸エチレングルコールジエステル、ステ
アリン酸モノグリセライド、ステアリン酸ジグリセライ
ド、ステアリン酸トリグリセライド、グリセリンモノパ
ルミテート、パルミチン酸モノペンタエリスリトールエ
ステル、パルミチン酸モノジグリセリンエステル、ミリ
スチン酸モノソルビトールエステル、グリセリンジミリ
ステート、グリセリントリミリステート、グリセリンモ
ノラウレート、グリセリンジラウレート、グリセリント
リラウレート、グリセリンモノステアレート、グリセリ
ンジステアレート、グリセリントリステアレート等の脂
肪酸の多価アルコールエステル、ヒドロキシパルミチン
酸モノグリセライド、ヒドロキシミリスチン酸モノグリ
セライド、ヒドロキシラウリン酸ジグリセライド、ヒド
ロキシステアリン酸モノグリセライド、ヒドロキシステ
アリン酸ジグリセライド、ヒドロキシステアリン酸トリ
グリセライド等のヒドロキシル基含有脂肪酸の多価アル
コールエステル等が挙げられ、なかでもヒドロキシル基
含有脂肪酸のグリセライド、特にヒドロキシステアリン
酸モノグリセライド、ヒドロキシステアリン酸ジグリセ
ライドおよびヒドロキシステアリン酸トリグリセライド
が好ましい。
Specific examples of these polyhydric alcohol fatty acid esters include ethylene glycol montanate monoester, ethylene glycol diester montanate, stearic acid monoglyceride, stearic acid diglyceride, stearic acid triglyceride, glycerin monopalmitate, palmitic acid monopenta Erythritol ester, monodiglycerol palmitate ester, monosorbitol myristate ester, glycerin dimyristate, glycerin trimyristate, glycerin monolaurate, glycerin dilaurate, glycerin trilaurate, glycerin monostearate, glycerin distearate, glycerin Polyhydric alcohol esters of fatty acids such as tristearate, hydroxyl group-containing fatty acids such as hydroxypalmitic acid monoglyceride, hydroxymyristic acid monoglyceride, hydroxylauric acid diglyceride, hydroxystearic acid monoglyceride, hydroxystearic acid diglyceride, hydroxystearic acid triglyceride, etc. Examples include alcohol esters, among which hydroxyl group-containing fatty acid glycerides, particularly hydroxystearic acid monoglyceride, hydroxystearic acid diglyceride, and hydroxystearic acid triglyceride are preferred.

【0013】又、無機質微粒子としては、各種の無機質
微粒子がいずれも使用できるが、通常は微粒子状珪素酸
化物、例えば各種の微粒子状合成シリカを使用する。な
かでも表面がヒドロキシル基からアルキル基等へ置換さ
れた疎水性合成シリカが好ましい。粒子径としては平均
粒子径が5〜50mμ、特に10〜30mμのものが好
ましい。
[0013] As the inorganic fine particles, any of various inorganic fine particles can be used, but usually fine particulate silicon oxides, such as various fine particulate synthetic silicas, are used. Among these, hydrophobic synthetic silica whose surface is substituted with an alkyl group or the like instead of a hydroxyl group is preferred. As for the particle size, those having an average particle size of 5 to 50 mμ, particularly 10 to 30 mμ are preferable.

【0014】上記固着剤中に含有される常温固形の多価
アルコール脂肪酸エステルと無機質微粒子との割合は、
多価アルコール脂肪酸エステル100重量部に対して、
無機質微粒子が通常5〜200重量部、好ましくは20
〜110重量部となる範囲である。
[0014] The ratio of the polyhydric alcohol fatty acid ester that is solid at room temperature and the inorganic fine particles contained in the above-mentioned fixing agent is as follows:
For 100 parts by weight of polyhydric alcohol fatty acid ester,
The amount of inorganic fine particles is usually 5 to 200 parts by weight, preferably 20 parts by weight.
-110 parts by weight.

【0015】なお、固着剤としては、溶剤、液状油、可
塑剤、樹脂ペレットより軟化点の低い低分子量樹脂、ポ
リオキシアルキレングリコール等を用いることも考えら
れるが、液状のものは、そのまま着色剤中に残すと、樹
脂の着色では樹脂物性を損なったり、取り扱いで期待し
た程の効果がなく周囲を汚したりするという欠点がある
。又、固形のものを単独で用いる場合には、染顔料と予
めよく混合、混練しておく必要があり、固着剤の融点に
合わせて温度や固着方式を考え、固着条件を種々変化さ
せなければならず、しかも被着色樹脂との相溶性を十分
に考慮し、樹脂物性を損なわないよう注意する必要があ
る。
As the fixing agent, it is possible to use solvents, liquid oils, plasticizers, low molecular weight resins with a lower softening point than resin pellets, polyoxyalkylene glycols, etc., but liquid ones can be used as colorants as they are. If left inside, coloring of the resin has the disadvantage that it impairs the physical properties of the resin, does not have the expected effect on handling, and stains the surrounding area. In addition, when using a solid substance alone, it is necessary to mix and knead it well with the dye and pigment in advance, and the temperature and fixing method must be considered in accordance with the melting point of the fixing agent, and the fixing conditions must be varied. Moreover, it is necessary to fully consider the compatibility with the resin to be colored and be careful not to impair the physical properties of the resin.

【0016】その点、本発明では固着剤として常温固形
の多価アルコール脂肪酸エステルと無機質微粒子とを用
いるだけで良く、染顔料の分散も着色樹脂物性を損なう
こともない。
In this respect, in the present invention, it is sufficient to use polyhydric alcohol fatty acid ester which is solid at room temperature and inorganic fine particles as the fixing agent, and the dye and pigment are neither dispersed nor the physical properties of the colored resin are impaired.

【0017】本発明で用いる着色剤は、染顔料と分散剤
とを含有してなるものであり、例えば染顔料と金属石鹸
やワックス等の分散剤とをヘンシェルミキサー等の回転
羽根を有するミキサーで混合又は練肉し、粉末状とした
ものが挙げられ、なかでも染顔料を金属石鹸と混合又は
練肉し、粉末状としたドライカラーが好ましい。
The colorant used in the present invention contains a dye and pigment and a dispersant. For example, the dye and pigment and a dispersant such as metal soap or wax are mixed in a mixer with rotating blades such as a Henschel mixer. Examples include powdered colors obtained by mixing or grinding dyes and pigments with metal soap. Among them, dry colors obtained by mixing or grinding dyes and pigments with metal soap and forming powders are preferable.

【0018】ここで用いる染顔料としては、特に限定は
なく、各種のもの、例えば酸化チタン、酸化亜鉛、弁柄
、チタニウムオキサイド系焼成顔料、群青、アルミン酸
コバルト、カーボンブラックなどの無機顔料、アゾ系、
キナクリドン系、ペリレン系、アンスラキノン系、フタ
ロシアニン系、キノフタロン系、イソインドリノン系、
スレン系などの有機顔料とか染料、この他に硫酸バリウ
ム、炭酸カルシウム、タルクなどの体質顔料等が挙げら
れる。
The dyes and pigments used here are not particularly limited, and include various types, such as titanium oxide, zinc oxide, Bengara, titanium oxide fired pigments, ultramarine, cobalt aluminate, inorganic pigments such as carbon black, and azo system,
Quinacridone series, perylene series, anthraquinone series, phthalocyanine series, quinophthalone series, isoindolinone series,
Examples include organic pigments and dyes such as threne-based pigments, and extender pigments such as barium sulfate, calcium carbonate, and talc.

【0019】又、金属石鹸としては、例えばステアリン
酸、パルミチン酸、オレイン酸、ラウリン酸等の脂肪酸
のアルカリ金属塩及びアルカリ土類金属塩が挙げられ、
通常被着色樹脂の種類を考慮して、耐熱性や分散性の優
れたものを適宜選択して使用するが、一般的にはステア
リン酸アルミニウム、ステアリン酸亜鉛、ステアリン酸
マグネシウム、ステアリン酸カルシウム、ステアリン酸
リチウムなど、いずれも融点が120℃を越えるものを
単独もしくは複合された形で用いられる。
Examples of metal soaps include alkali metal salts and alkaline earth metal salts of fatty acids such as stearic acid, palmitic acid, oleic acid, and lauric acid.
Usually, considering the type of resin to be colored, one with excellent heat resistance and dispersibility is selected and used, but generally aluminum stearate, zinc stearate, magnesium stearate, calcium stearate, stearic acid Lithium, which has a melting point of over 120°C, can be used alone or in combination.

【0020】上記着色剤中に含有される染顔料と金属石
鹸等の分散剤の割合は、染顔料100重量部に対して金
属石鹸が通常10〜400重量部、好ましくは20〜2
00重量部となる範囲である。
[0020] The ratio of the dye and pigment contained in the above coloring agent to the dispersing agent such as metal soap is usually 10 to 400 parts by weight, preferably 20 to 2 parts by weight of metal soap to 100 parts by weight of dye and pigment.
00 parts by weight.

【0021】本発明で使用する必須成分は上記の通りで
あるが、必要に応じて、各種の他の添加剤、酸化防止剤
、紫外線吸収剤等を固着剤や着色剤に加えることは何等
制限を受けることはない。
[0021] The essential ingredients used in the present invention are as described above, but there are no restrictions on adding various other additives, antioxidants, ultraviolet absorbers, etc. to the fixing agent or coloring agent as necessary. You will not receive any.

【0022】本発明の粒状着色剤の製法としては、例え
ば■回転羽根を有し、かつ加熱冷却できるミキサーを用
い、熱可塑性樹脂粒子を該樹脂が溶融しない温度以下で
、かつ常温固形の多価アルコール脂肪酸エステルの融点
以上の温度、例えば100〜120℃まで加熱し、樹脂
粒子と固着剤と着色剤とを加えて混合、冷却する方法、
■回転羽根を有し、かつ加熱冷却できるミキサーに、ま
ず熱可塑性樹脂粒子を加え、ミキサー器壁を蒸気等で加
熱して、回転羽根を低速で回転させながら混合し、該樹
脂が溶融しない温度以下で、かつ常温固形の多価アルコ
ール脂肪酸エステルの融点以上の温度、例えば100〜
120℃まで該樹脂を加熱し、次に混合しながら固着剤
を加え、樹脂粒子表面に溶融した固着剤の濡れた層を形
成せしめた後、ミキサー器壁を水などで冷却しながら、
やはり回転羽根を低速で回転させ、着色剤を全量加えて
1〜10分間程度混合を続け、着色剤を樹脂粒子上の固
着剤に均一に付着させ、この段階でミキサーによる混合
を止め、冷却させる方法等が挙げられ、なかでも■の方
法が特に好ましい。
The method for producing the granular colorant of the present invention includes, for example: (1) Using a mixer having rotating blades and capable of heating and cooling, the thermoplastic resin particles are heated to a temperature below that at which the resin does not melt, and the polyhydric resin is solid at room temperature. A method of heating to a temperature above the melting point of the alcohol fatty acid ester, for example 100 to 120°C, adding resin particles, a fixing agent, and a coloring agent, mixing, and cooling;
■ First, thermoplastic resin particles are added to a mixer that has rotating blades and can be heated and cooled, and the mixer wall is heated with steam, etc., and mixed while rotating the rotating blades at low speed, to a temperature at which the resin does not melt. and at a temperature higher than the melting point of the polyhydric alcohol fatty acid ester which is solid at room temperature, e.g.
After heating the resin to 120° C. and then adding a fixing agent while mixing to form a wet layer of molten fixing agent on the surface of the resin particles, cooling the mixer wall with water or the like,
Again, rotate the rotary blade at low speed, add the entire amount of coloring agent, and continue mixing for about 1 to 10 minutes to uniformly adhere the coloring agent to the fixing agent on the resin particles. At this stage, stop mixing with the mixer and allow to cool. Methods include methods, among which method (2) is particularly preferred.

【0023】なお、上記■および■方法において固着剤
として用いる常温固形の多価アルコール脂肪酸エステル
と無機質微粒子とは別々に加えても良いが、予め混ぜて
使用するのが好ましい。又、■の方法において固着剤は
一部を残しておき、後から着色剤と同時に加えても良い
。得られた粒状着色剤は、ミキサー器壁への粘着や付着
がなく、固着剤含有着色剤層が熱可塑性樹脂粒子表面に
均一に強固に付着した物である。
Although the polyhydric alcohol fatty acid ester, which is solid at room temperature, and the inorganic fine particles used as the fixing agent in the above methods (1) and (2) may be added separately, it is preferable to mix them together beforehand. Further, in the method (2), a portion of the fixing agent may be left behind and added later at the same time as the coloring agent. The obtained granular colorant does not stick or adhere to the wall of the mixer, and the colorant layer containing the fixing agent is uniformly and firmly adhered to the surface of the thermoplastic resin particles.

【0024】ここで用いる各成分の使用比率は、粉末状
着色剤が熱可塑性樹脂粒子100重量部に対して通常1
0〜100重量部となる範囲であり、固着剤が粉末状着
色剤100重量部に対して通常10〜50重量部となる
範囲である。
[0024] The ratio of each component used here is usually 1 part by weight of the powdered colorant per 100 parts by weight of the thermoplastic resin particles.
The amount of the fixing agent is generally 10 to 50 parts by weight per 100 parts by weight of the powdered colorant.

【0025】[0025]

【実施例】次に実施例および比較例を挙げて本発明を具
体的に説明する。なお、例中の部および%はすべて重量
基準である。
[Examples] Next, the present invention will be specifically explained with reference to Examples and Comparative Examples. Note that all parts and percentages in the examples are based on weight.

【0026】実施例1〜2 酸化チタン68部、銅フタロシアニングリーン2部およ
びステアリン酸亜鉛30部をヘンシェルミキサー(三井
三池製作所)にて羽根の回転数1800rpmでよく攪
拌混合し、ドライカラー(A)を得た。
Examples 1 to 2 68 parts of titanium oxide, 2 parts of copper phthalocyanine green, and 30 parts of zinc stearate were thoroughly stirred and mixed in a Henschel mixer (Mitsui Miike Seisakusho) at a blade rotation speed of 1800 rpm to obtain dry color (A). I got it.

【0027】別のヘンシェルミキサーに高密度ポリエチ
レン(MFR  20g/10min)ペレット80部
を入れ、羽根の回転数800rpmで攪拌しながら、ミ
キサー器壁を蒸気加熱し、温度110℃まで樹脂ペレッ
トを加熱した。次いで、攪拌を続けながら表1記載の配
合組成で予め混合して得た固着剤を2部加え、樹脂ペレ
ットが固着剤溶融液で均一に濡れたのを確認した後、ミ
キサー器壁の水冷を開始し、続いて直ちに上記のドライ
カラー(A)を18部加え、更にミキサーにて3分間混
合攪拌を続けると、樹脂ペレット表面にドライカラー(
A)の層が形成された粒状着色剤が形成されると共に固
着剤が固化したので、その時点でミキサーの羽根の回転
を止め、そのまましばらく冷却した後、粒状着色剤を取
り出した。
[0027] 80 parts of high-density polyethylene (MFR 20 g/10 min) pellets were placed in another Henschel mixer, and while stirring at a blade rotation speed of 800 rpm, the mixer wall was heated with steam to heat the resin pellets to a temperature of 110°C. . Next, while continuing to stir, add 2 parts of the fixing agent obtained by pre-mixing the composition shown in Table 1, and after confirming that the resin pellets are uniformly wetted with the fixing agent melt, water cooling the mixer wall was performed. Then, immediately add 18 parts of the above dry color (A) and continue mixing and stirring with a mixer for 3 minutes, and the dry color (A) will be coated on the surface of the resin pellet.
As the granular colorant with the layer A) was formed and the fixing agent solidified, at that point the mixer blades stopped rotating, and after cooling for a while, the granular colorant was taken out.

【0028】取り出した粒状着色剤を全量、ドラムタン
ブラーへ入れ、5分間混合した後、ドライカラー(A)
の固着および器壁汚染の状況を観察し、下記の基準で判
定した。その結果を表1に示す。
[0028] Put the entire amount of the granular colorant taken out into a drum tumbler, mix for 5 minutes, and then dry color (A).
The state of adhesion and contamination of the container wall was observed and judged based on the following criteria. The results are shown in Table 1.

【0029】又、取り出した粒状着色剤4部を未着色高
密度ポリエチレン(MFR  4g/10min)ペレ
ット96部へ加え、簡単に混ぜた後、200℃で射出成
形してプレートにしたところ、得られたプレートは美麗
な淡いグリーン色のプレートとなり、顔料の分散は良好
であった。
Furthermore, 4 parts of the granular colorant taken out was added to 96 parts of uncolored high-density polyethylene (MFR 4g/10min) pellets, mixed briefly, and then injection molded at 200°C to form a plate. The resulting plate had a beautiful pale green color, and the pigment was well dispersed.

【0030】固着および器壁汚染の状況の判定基準5:
着色剤層の固着が均一で凸凹がなく、脱落もないので器
壁を汚さない。 4:着色剤層にわずかに凸凹があるが、脱落はなく、器
壁を汚さない。
[0030] Criterion 5 for determining the state of adhesion and vessel wall contamination:
The colorant layer adheres evenly, without unevenness, and does not fall off, so it does not stain the vessel wall. 4: The colorant layer is slightly uneven, but does not fall off and does not stain the vessel wall.

【0031】3:着色剤層に凸凹と若干の脱落とがあり
、わずかに器壁が汚れる。 2:着色剤層が形成されているが、脱落が多く、器壁を
汚す。 1:着色剤層が殆ど形成されず、脱落が極めて多く、器
壁を著しく汚す。
3: The coloring agent layer has unevenness and some falling off, and the vessel wall is slightly stained. 2: A coloring agent layer is formed, but it often falls off and stains the vessel wall. 1: Almost no coloring agent layer was formed, there was a lot of shedding, and the container wall was seriously stained.

【0032】比較例1 固着剤の使用を省略し、ドライカラー(A)の使用量を
20部に変更した以外は実施例1と同様にして粒状着色
剤を得、次いで同様にしてドライカラー(A)の固着お
よび器壁汚染の状況を判定した。その結果を表1に示す
Comparative Example 1 A granular colorant was obtained in the same manner as in Example 1, except that the use of a fixing agent was omitted and the amount of dry color (A) used was changed to 20 parts, and then a dry color (A) was obtained in the same manner as in Example 1. A) The state of adhesion and vessel wall contamination was determined. The results are shown in Table 1.

【0033】実施例3および比較例2 カーボンブラック30部、硫酸バリウム20部およびス
テアリン酸マグネシウム50部を用いた以外は実施例1
と同様にしてドライカラー(B)を得た。
Example 3 and Comparative Example 2 Example 1 except that 30 parts of carbon black, 20 parts of barium sulfate and 50 parts of magnesium stearate were used.
Dry color (B) was obtained in the same manner as above.

【0034】別のヘンシェルミキサーにアクリロニトリ
ルスチレンブタジエン共重合体(MFR  12g/1
0min)ペレット70部を入れ、実施例1と同様にし
て樹脂ペレットを加熱した。次いで、攪拌を続けながら
表1記載の配合組成で予め混合して得た固着剤を3部加
え、樹脂ペレットが固着剤溶融液で均一に濡れたのを確
認した後、ミキサー器壁の水冷を開始し、続いて直ちに
上記のドライカラー(B)を27部加えた以外は実施例
1と同様にして粒状着色剤を得、次いで同様にしてドラ
イカラー(B)の固着および器壁汚染の状況を判定した
。その結果を表1に示す。
In another Henschel mixer, acrylonitrile styrene butadiene copolymer (MFR 12 g/1
0 min) 70 parts of pellets were added, and the resin pellets were heated in the same manner as in Example 1. Next, while continuing to stir, 3 parts of the fixing agent obtained by pre-mixing the composition shown in Table 1 was added, and after confirming that the resin pellets were uniformly wetted with the fixing agent melt, the mixer wall was cooled with water. A granular coloring agent was obtained in the same manner as in Example 1 except that 27 parts of the above dry color (B) was immediately added, and then the situation of dry color (B) fixation and container wall contamination was determined in the same manner as in Example 1. was determined. The results are shown in Table 1.

【0035】又、取り出した着色剤5部を未着色アクリ
ロニトリルスチレンブタジエン共重合体(MFR  3
g/10min)ペレット95部へ加え、簡単に混ぜた
後、230℃で射出成形してプレートにしたところ、得
られたプレートは美麗な黒色のプレートとなり、顔料の
分散は良好であった。
Further, 5 parts of the colorant taken out was mixed with uncolored acrylonitrile styrene butadiene copolymer (MFR 3
g/10 min) was added to 95 parts of pellets, briefly mixed, and then injection molded at 230°C to form a plate. The plate obtained was a beautiful black plate, and the pigment was well dispersed.

【0036】実施例4 イソインドリノンイエロー30部、弁柄2部、酸化チタ
ン10部およぎステアリン酸アルミニウム58部を実施
例1と同様にしてドライカラー(C)を得た。
Example 4 Dry color (C) was obtained in the same manner as in Example 1 using 30 parts of isoindolinone yellow, 2 parts of Bengara, 10 parts of titanium oxide and 58 parts of aluminum stearate.

【0037】別のミキサーにポリプロピレン(MFR 
 15g/10min)ペレット75部を入れ、実施例
1と同様にして樹脂ペレットを加熱した。次いで、攪拌
を続けながら表1記載の配合組成で予め混合して得た固
着剤を4部加え、樹脂ペレットが固着剤溶融液で均一に
濡れたのを確認した後、ミキサー器壁の水冷を開始し、
続いて直ちに上記のドライカラー(C)を21部加えた
以外は実施例1と同様にして粒状着色剤を得、次いで同
様にしてドライカラー(C)の固着および器壁汚染の状
況を判定した。その結果を表1に示す。
[0037] In another mixer, polypropylene (MFR
15g/10min) 75 parts of pellets were added, and the resin pellets were heated in the same manner as in Example 1. Next, while continuing to stir, 4 parts of the fixing agent obtained by pre-mixing the composition shown in Table 1 was added, and after confirming that the resin pellets were uniformly wetted with the fixing agent melt, the mixer wall was cooled with water. start,
Subsequently, a granular colorant was obtained in the same manner as in Example 1 except that 21 parts of the above dry color (C) was immediately added, and then the state of adhesion of the dry color (C) and contamination of the container wall was determined in the same manner. . The results are shown in Table 1.

【0038】又、取り出した着色剤3.3部を未着色ポ
リプロピレン(MFR  9g/10min)ペレット
96.7部へ加え、簡単に混ぜた後、220℃にてイン
フレーション成形でフィルムとした。得られたフィルム
は美麗な黄色のフィルムとなり、顔料の分散は良好であ
った。
Further, 3.3 parts of the colorant taken out was added to 96.7 parts of uncolored polypropylene (MFR 9 g/10 min) pellets, mixed briefly, and then formed into a film by inflation molding at 220°C. The obtained film was a beautiful yellow film, and the pigment was well dispersed.

【0039】実施例5〜6 表1記載の配合組成で予め混合して得た固着剤をそれぞ
れ用いた以外は実施例1と同様にして粒状着色剤を得、
次いで同様にしてドライカラー(A)の固着および器壁
汚染の状況を判定した。その結果を表1に示す。
Examples 5 to 6 Granular coloring agents were obtained in the same manner as in Example 1, except that fixing agents pre-mixed with the compositions listed in Table 1 were used.
Next, the adhesion of the dry color (A) and the contamination of the container wall were determined in the same manner. The results are shown in Table 1.

【0040】[0040]

【表1】[Table 1]

【0041】[0041]

【発明の効果】本発明の粒状着色剤は、生産工程が短く
、容易で、安価に製造できる。しかも、高濃度に染顔料
を含み、形状が通常の樹脂ペレットと殆ど違わないので
、マスターバッチカラーのように取り扱うことができ、
着色剤層の脱落がないので、各種プラスチック成形機本
体や周辺機器への汚染もなく、秤量もし易い。
[Effects of the Invention] The granular colorant of the present invention can be produced easily and inexpensively with a short production process. Furthermore, it contains dyes and pigments at a high concentration, and its shape is almost the same as ordinary resin pellets, so it can be handled like a masterbatch color.
Since the colorant layer does not fall off, there is no contamination of the main body of various plastic molding machines or peripheral equipment, and weighing is easy.

Claims (14)

【特許請求の範囲】[Claims] 【請求項1】  熱可塑性樹脂粒子からなる中心核と、
それを包囲する固着剤含有着色剤層とからなる粒状着色
剤において、固着剤が常温固形の多価アルコール脂肪酸
エステルおよび無機質微粒子を含有してなるものである
ことを特徴とする粒状着色剤。
[Claim 1] A central core made of thermoplastic resin particles;
A granular coloring agent comprising a colorant layer containing a fixing agent surrounding the granular colorant, characterized in that the fixing agent contains a polyhydric alcohol fatty acid ester that is solid at room temperature and inorganic fine particles.
【請求項2】  無機質微粒子が微粒子状珪素酸化物で
ある請求項1記載の粒状着色剤。
2. The granular coloring agent according to claim 1, wherein the inorganic fine particles are fine particulate silicon oxide.
【請求項3】  多価アルコール脂肪酸エステルがヒド
ロキシル基含有脂肪酸のグリセリンエステルであり、か
つ無機質微粒子が微粒子状珪素酸化物である請求項1記
載の着色剤。
3. The coloring agent according to claim 1, wherein the polyhydric alcohol fatty acid ester is a glycerin ester of a hydroxyl group-containing fatty acid, and the inorganic fine particles are fine particulate silicon oxide.
【請求項4】  ヒドロキシル基含有脂肪酸のグリセリ
ンエステルがヒドロキシルステアリン酸モノグリセライ
ド、ヒドロキシルステアリン酸ジグリセライドおよびヒ
ドロキシルステアリン酸トリグリセライドからなる群か
ら選ばれる1種以上の化合物であり、かつ無機質微粒子
が疎水性表面を有する平均粒こ径10〜30mμの合成
シリカである請求項1、2又は3記載の着色剤。
4. The glycerin ester of a hydroxyl group-containing fatty acid is one or more compounds selected from the group consisting of hydroxyl stearate monoglyceride, hydroxyl stearate diglyceride, and hydroxyl stearate triglyceride, and the inorganic fine particles have a hydrophobic surface. The coloring agent according to claim 1, 2 or 3, which is a synthetic silica having an average particle diameter of 10 to 30 mμ.
【請求項5】  固着剤含有着色剤層が、多価アルコー
ル脂肪酸エステルおよび無機質微粒子を含有してなる固
着剤と、染顔料および分散剤を含有してなる粉末状着色
剤とからなる層である請求項1記載の着色剤。
5. The fixing agent-containing colorant layer is a layer consisting of a fixing agent containing a polyhydric alcohol fatty acid ester and inorganic fine particles, and a powdery coloring agent containing a dye/pigment and a dispersant. The coloring agent according to claim 1.
【請求項6】  固着剤がヒドロキシル基含有脂肪酸の
グリセリンエステルおよび微粒子状珪素酸化物を含有し
てなるものであり、かつ分散剤が金属石鹸である請求項
5記載の着色剤。
6. The coloring agent according to claim 5, wherein the fixing agent contains a glycerin ester of a hydroxyl group-containing fatty acid and a particulate silicon oxide, and the dispersing agent is a metal soap.
【請求項7】  固着剤含有着色剤層が、ヒドロキシル
ステアリン酸モノグリセライド、ヒドロキシルステアリ
ン酸ジグリセライドおよびヒドロキシルステアリン酸ト
リグリセライドからなる群から選ばれる1種以上の化合
物と疎水性表面を有する平均粒子径10〜30mμの合
成シリカを含有する固着剤の上に、染顔料と金属石鹸と
を含有する粉末状着色剤が固着してなる層である請求項
1記載の着色剤。
7. The fixing agent-containing colorant layer contains one or more compounds selected from the group consisting of hydroxyl stearate monoglyceride, hydroxyl stearate diglyceride, and hydroxyl stearate triglyceride, and has a hydrophobic surface and an average particle diameter of 10 to 30 mμ. 2. The coloring agent according to claim 1, which is a layer formed by fixing a powdered coloring agent containing a dye/pigment and a metal soap onto a fixing agent containing synthetic silica.
【請求項8】  熱可塑性樹脂粒子の表面上に、常温固
形の多価アルコール脂肪酸エステルおよび無機質微粒子
を含有してなる固着剤の溶融被覆層を形成した後、染顔
料を含有してなる粉末状着色剤を該溶融被覆層に固着せ
しめることを特徴とする粒状着色剤の製法。
8. After forming a molten coating layer of a fixing agent containing a polyhydric alcohol fatty acid ester that is solid at room temperature and inorganic fine particles on the surface of the thermoplastic resin particles, a powdery coating layer containing a dye and pigment is formed. A method for producing a granular colorant, which comprises fixing the colorant to the molten coating layer.
【請求項9】  熱可塑性樹脂粒子と、多価アルコール
脂肪酸エステルおよび無機質微粒子を含有してなる固着
剤とを、熱可塑性樹脂が溶融しない温度以下で、かつ多
価アルコール脂肪酸エステル融点以上の温度で攪拌して
、熱可塑性樹脂粒子の表面上に固着剤の溶融被覆層を形
成した後、染顔料を含有してなる粉末状着色剤を加え、
攪拌し、冷却する請求項8記載の製法。
9. Thermoplastic resin particles and a fixing agent containing a polyhydric alcohol fatty acid ester and inorganic fine particles are bonded at a temperature below which the thermoplastic resin does not melt and at a temperature above the melting point of the polyhydric alcohol fatty acid ester. After stirring to form a molten coating layer of the fixing agent on the surface of the thermoplastic resin particles, a powdered coloring agent containing dye and pigment is added,
9. The method according to claim 8, which comprises stirring and cooling.
【請求項10】  無機質微粒子が微粒子状珪素酸化物
である請求項8又は9記載の製法。
10. The method according to claim 8 or 9, wherein the inorganic fine particles are fine particulate silicon oxides.
【請求項11】  固着剤が多価アルコール脂肪酸エス
テルおよび微粒子状珪素酸化物を含有してなるものであ
り、かつ着色剤が染顔料および分散剤を含有してなるも
のである請求項8又は9記載の製法。
11. Claim 8 or 9, wherein the fixing agent contains a polyhydric alcohol fatty acid ester and a particulate silicon oxide, and the coloring agent contains a dye/pigment and a dispersant. Manufacturing method described.
【請求項12】  固着剤がヒドロキシル基含有脂肪酸
のグリセリンエステルおよび微粒子状珪素酸化物を含有
してなるものであり、かつ分散剤が金属石鹸である請求
項8又は9記載の製法。
12. The method according to claim 8, wherein the fixing agent contains a glycerin ester of a hydroxyl group-containing fatty acid and a particulate silicon oxide, and the dispersing agent is a metal soap.
【請求項13】  固着剤が、ヒドロキシルステアリン
酸モノグリセライド、ヒドロキシルステアリン酸ジグリ
セライドおよびヒドロキシルステアリン酸トリグリセラ
イドからなる群から選ばれる1種以上の化合物と疎水性
表面を有する平均粒子径10〜30mμの合成シリカを
含有するものであり、かつ着色剤が染顔料と金属石鹸と
を含有するものである請求項8又は9記載の製法。
13. The fixing agent is one or more compounds selected from the group consisting of hydroxyl stearate monoglyceride, hydroxyl stearate diglyceride, and hydroxyl stearate triglyceride, and synthetic silica having an average particle diameter of 10 to 30 mμ and having a hydrophobic surface. 10. The method according to claim 8, wherein the coloring agent contains a dye/pigment and a metal soap.
【請求項14】  熱可塑性樹脂粒子と、常温固形の多
価アルコール脂肪酸エステルおよび無機質微粒子を含有
してなる固着剤と、染顔料を含有してなる粉末状着色剤
とを熱可塑性樹脂が溶融しない温度以下で、かつ多価ア
ルコール脂肪酸エステル融点以上の温度で攪拌して、熱
可塑性樹脂粒子の表面上に固着剤含有着色剤層を形成さ
せ加え、攪拌冷却することを特徴とする粒状着色剤の製
法。
14. The thermoplastic resin does not melt the thermoplastic resin particles, the fixing agent containing a polyhydric alcohol fatty acid ester solid at room temperature and inorganic fine particles, and the powdered coloring agent containing dyes and pigments. A granular coloring agent characterized in that a coloring agent layer containing a fixing agent is formed on the surface of thermoplastic resin particles by stirring at a temperature below the melting point of a polyhydric alcohol fatty acid ester, and the coloring agent layer is added to the surface of the thermoplastic resin particles, followed by stirring and cooling. Manufacturing method.
JP9856291A 1991-04-30 1991-04-30 Granulate colorant and production thereof Pending JPH04328138A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9856291A JPH04328138A (en) 1991-04-30 1991-04-30 Granulate colorant and production thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9856291A JPH04328138A (en) 1991-04-30 1991-04-30 Granulate colorant and production thereof

Publications (1)

Publication Number Publication Date
JPH04328138A true JPH04328138A (en) 1992-11-17

Family

ID=14223122

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9856291A Pending JPH04328138A (en) 1991-04-30 1991-04-30 Granulate colorant and production thereof

Country Status (1)

Country Link
JP (1) JPH04328138A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5969026A (en) * 1997-06-26 1999-10-19 Techmer Pm Wettable polymer fibers
JP2004300350A (en) * 2003-03-31 2004-10-28 Toda Kogyo Corp Black composite powder particle and preparation method of the same, and coating material and resin composition using the same
JP2007536387A (en) * 2003-07-14 2007-12-13 スーパーシール リミテッド Hydrophobic composition and fine particles, and uses thereof
JP2014221910A (en) * 2007-05-07 2014-11-27 ユーエス コスメティクス コーポレイション Thoroughly extended color bulk powder, bulk dispersion and application method thereof
US9777407B2 (en) 2009-03-27 2017-10-03 3M Innovative Properties Company Hydrophilic polyproylene melt additives

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5969026A (en) * 1997-06-26 1999-10-19 Techmer Pm Wettable polymer fibers
JP2004300350A (en) * 2003-03-31 2004-10-28 Toda Kogyo Corp Black composite powder particle and preparation method of the same, and coating material and resin composition using the same
JP2007536387A (en) * 2003-07-14 2007-12-13 スーパーシール リミテッド Hydrophobic composition and fine particles, and uses thereof
JP2014221910A (en) * 2007-05-07 2014-11-27 ユーエス コスメティクス コーポレイション Thoroughly extended color bulk powder, bulk dispersion and application method thereof
US9777407B2 (en) 2009-03-27 2017-10-03 3M Innovative Properties Company Hydrophilic polyproylene melt additives

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