CN116685645A - 颜料、化妆品、油墨、涂料、调色剂和成形物 - Google Patents

颜料、化妆品、油墨、涂料、调色剂和成形物 Download PDF

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CN116685645A
CN116685645A CN202180087271.3A CN202180087271A CN116685645A CN 116685645 A CN116685645 A CN 116685645A CN 202180087271 A CN202180087271 A CN 202180087271A CN 116685645 A CN116685645 A CN 116685645A
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Prior art keywords
pigment
coated
coating
color
colorant
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三好彩香
海地英生
渡边孝典
工藤新
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DIC Corp
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DIC Corp
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    • C09C3/00Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
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  • Chemical Kinetics & Catalysis (AREA)
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  • General Physics & Mathematics (AREA)
  • Paints Or Removers (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Cosmetics (AREA)

Abstract

本发明所要解决的课题在于,提供一种在涂布物中的触感良好且光滑,例如作为粉底、眼影等化妆品使用时涂于肌肤时的铺展性良好,显色、光泽良好的颜料。本发明的颜料是由至少一种金属或金属氧化物构成的薄片状基材的表面被着色剂被覆的被覆颜料,薄片状基材表面的粗粒面积率为9%以下。另外,上述薄片状基材优选为选自由云母、铝、氧化铝和玻璃组成的组中的至少一种以上。

Description

颜料、化妆品、油墨、涂料、调色剂和成形物
技术领域
本发明涉及颜料和包含该颜料的化妆品、油墨、涂料、调色剂或成形物。
背景技术
一直以来,在化妆品、油墨、涂料的领域中,要求涂布时的显色、光泽良好且闪亮感等亮度优异的物质。特别是在口红、眼影、腮红、美甲等彩妆化妆品中,为了提高涂布于皮肤而得到的上妆感,要求均匀地显色。另外,出于如珍珠、金属表面那样强烈地反射光而使之看起来更美等理由,有时也同时要求闪亮感。从这样的背景出发,在化妆品、油墨、涂料、调色剂或成形物中,单独或复合使用有机系颜料、云母等光亮材料作为颜料成分。
例如,专利文献1中记载了一种平均粒径5~60μm的薄片状颜料,其特征在于,不使用液体介质,而对由纵横比10~120的薄片状基质粒子构成的薄片状基质材料与由平均粒径5μm以下的粒子构成的颜料和/或染料的混合物进行高速搅拌处理,由此形成了基于有序混合物(ordered mixture)的复合体粒子。
另外,专利文献2中记载了一种化妆品,其特征在于,将在无机粉体或珠光颜料的表面牢固地固着有红色226号的着色无机粉体或着色珠光颜料中的至少一者配合于化妆品基剂中。
现有技术文献
专利文献
专利文献1:日本特开平05-214257号公报
专利文献2:日本特开昭62-169716号公报
发明内容
发明所要解决的课题
专利文献1、2所记载的颜料中,仅在薄片状基质材料上被覆着色剂,对于颜料表面的状态完全没有考虑。这样的以往的颜料存在如下问题:由于着色剂对薄片状基材的被覆不均匀,因此表面凹凸大,例如将颜料用于化妆品并涂布于肌肤时的平滑性降低,成为颜色不均的原因。因此,要求触感、铺展性良好且不易引起颜色不均的被覆颜料。
本发明的目的在于解决上述被覆颜料的课题,提供一种在涂布物中的触感良好且光滑,例如作为粉底、眼影等化妆品使用时涂于肌肤时的铺展性良好,显色、光泽良好的颜料。
用于解决课题的方法
本发明人等进行了深入研究,结果发现,通过控制薄片状基材表面的粗粒面积率,能够解决上述课题,从而完成了本发明。
即,本发明记载了:
“项1.一种颜料,其为由至少一种金属或金属氧化物构成的薄片状基材的表面被着色剂被覆的被覆颜料,上述薄片状基材表面的粗粒面积率为9%以下。
项2.如项1所述的颜料,其中,上述薄片状基材为选自由云母、铝、氧化铝和玻璃组成的组中的至少一种以上。
项3.如项1或2所述的颜料,其中,作为上述着色剂,包含至少一种以上的有机颜料。
项4.如项1~3中任一项所述的颜料,其中,上述薄片状基材的表面进一步被包含选自由树脂、金属和金属氧化物组成的组中的至少一种以上作为成分的层被覆。
项5.如项1~4中任一项所述的颜料,其中,上述颜料进一步被包含选自由树脂、金属和金属氧化物组成的组中的至少一种以上作为成分的层被覆。
项6.一种化妆品、油墨、涂料、调色剂或成形物,其包含项1~5中任一项所述的颜料。”
发明效果
本发明的颜料在涂布物中的触感良好且光滑,涂布时的铺展性良好,进而显色、光泽也良好。因此,特别是在作为粉底、眼影等化妆品使用时涂于肌肤时的铺展性良好,显色、光泽优异,闪亮感等亮度也优异。
附图说明
图1是实施例中的被覆颜料(1)的SEM照片。
图2是实施例中的被覆颜料(7)的SEM照片。
图3是图1的黑白二值化图像。
图4是表示本发明的颜料的一例的SEM照片(照片中的框表示粗粒面积率计算区域的例子)。
具体实施方式
以下,对本发明进行详细说明。
[颜料]
本发明的颜料是由至少一种金属或金属氧化物构成的薄片状基材的表面被着色剂被覆的颜料,基材表面的粗粒面积率为9%以下。以下,将本发明的颜料称为“被覆颜料”。在本发明中,“被覆”不仅是指薄片状基材的表面被完全覆盖,也包括仅表面的一部分被覆盖的情况(例如“附着”)。
被覆颜料的表面的粗粒面积率为9%以下,优选为6%以下,更优选为5%以下,进一步优选为4%以下,最优选为3%以下。若粗粒面积率为上述范围,则能够减小被覆颜料本身或包含其的涂布物的表面摩擦,触感良好且光滑。在本发明中,“粗粒”是指比薄片状基材充分小的粒子,例如,用扫描型电子显微镜观察的长径为约0.01μm~约3μm的粒子或者相对于薄片状基材的粒径为约0.05%~约15%的粒子。粗粒面积率可以用扫描型电子显微镜观察1个被覆颜料的表面,由存在于其表面的粗粒的面积比例求出。
(薄片状基材)
在被覆颜料中,上述薄片状基材由至少一种金属或金属氧化物构成。作为金属,例如可以列举硅(Si)、铁(Fe)、铝(Al)、钠(Na)、钙(Ca)、镁(Mg)、钾(K)、铜(Cu)、锰(Mn)、钛(Ti)、银(Ag)、金(Au)、铂(Pt)、铅(Pb)、铬(Cr)、锡(Sn)、钼(Mo)、镓(Ga)、铟(In)。另外,作为金属氧化物,可以列举这些金属的氧化物。
作为上述薄片状基材,例如可以列举云母、铝、氧化铝、玻璃、二氧化钛、氧化铁红、氧化铁、氧化铁黄、氧化铁黑、氧化锌、普鲁士蓝、群青、氧化铬、高岭土、粘土、膨润土、氯氧化铋、氧化锆、氧化镁。其中,作为薄片状基材,优选为选自由云母、铝、氧化铝和玻璃组成的组中的至少一种以上。
作为上述云母(mica),例如可以列举天然云母、合成云母、合成金云母、云母钛、合成云母钛、氧化铁被覆云母、氧化铁被覆合成云母、氢氧化铬云母。作为上述铝(Al),除了铝单质以外,例如可以列举氢氧化铝、氯化铝、氮化铝、磷酸铝、硫酸铝。上述玻璃通常是以二氧化硅(SiO2)为主成分的硅酸盐玻璃,例如可以列举钠钙玻璃、铅玻璃、钠钙玻璃、A玻璃、C玻璃、E玻璃、硼硅酸玻璃、铝硅酸盐玻璃。这些薄片状基材可以单独使用一种,也可以组合使用两种以上。
作为上述薄片状基材的大小,厚度例如为0.1~5μm(优选为0.2~3μm),长边方向的长度例如为3~100μm(优选为5~50μm)。薄片状基材的平均纵横比(长度/厚度比)例如为10~200、优选为20~150。薄片状基材的大小、平均纵横比为上述范围时,在制成被覆颜料时,在涂布物中的触感良好且光滑,涂布时的铺展性良好,进而显色、光泽也良好。另外,薄片状基材的平均粒径例如为3~100μm,优选为5~50μm。
薄片状基材可以使用作为云母粒子的SunMICA(商标、SunChemical公司制)、IRIODIN(注册商标、Merck公司制)、作为玻璃粒子的“GLASFLAKE”、“METASHINE”、“Lumiglan(ルミグラン)”(以上为注册商标,日本板硝子株式会社制)、作为铝粒子的“HYDROLAN”(注册商标,Eckart株式会社制)等市售品。
上述薄片状基材的含量相对于被覆颜料总量例如为20~98质量%,优选为30~95质量%。另外,薄片状基材的含量相对于上述着色剂100质量份例如为30~2000质量份,优选为50~1500质量份,更优选为100~1000质量份。薄片状基材的比例为上述范围时,在制成被覆颜料时,在涂布物中的触感良好且光滑,涂布时的铺展性良好,进而显色、光泽也良好。
上述薄片状基材的表面可以进一步被包含选自由树脂、金属和金属氧化物组成的组中的至少一种以上作为成分的层被覆。例如,作为树脂,可列举丙烯酸树脂、聚氨酯树脂、苯乙烯树脂、醚树脂、环氧树脂;作为金属,可列举硅(Si)、铁(Fe)、铝(Al)、钠(Na)、钙(Ca)、镁(Mg)、钾(K)、铜(Cu)、锰(Mn)、钛(Ti)、银(Ag)、金(Au)、铂(Pt)、铅(Pb)、铬(Cr)、锡(Sn)、钼(Mo)、镓(Ga)、铟(In);作为金属氧化物,可列举这些金属的氧化物。
作为上述薄片状基材,可以使用市售品,例如可以使用“C80-1608SunPURO PearlSilver”(Sun Chemical公司制)、“Benda-Lutz MAXAL76044EC”(Sun Chemical公司制)。
(着色剂)
被覆颜料优选包含至少一种以上的有机颜料作为上述着色剂。作为有机颜料,可以列举偶氮系、酞菁系、蒽醌系、苝系、芘酮系、喹吖啶酮系、硫靛系、二噁嗪系、异吲哚啉酮系、喹酞酮系、偶氮甲碱系、二酮吡咯并吡咯系、异吲哚啉系等颜料;例如可以列举红色3号、红色104号、红色106号、红色201号、红色202号、红色204号、红色205号、红色220号、红色223号、红色226号、红色227号、红色228号、红色230号、红色401号、红色405号、红色505号、橙色203号、橙色204号、橙色205号、黄色4号、黄色5号、黄色401号、蓝色1号、蓝色404号、C.I.颜料红1、2、3、4、5、6、7、8、9、12、14、15、16、17、21、22、23、31、32、37、38、41、47、48、48:1、48:2、48:3、48:4、49、49:1、49:2、50:1、52:1、52:2、53、53:1、53:2、53:3、57、57:1、57:2、58:4、60、63、63:1、63:2、64、64:1、68、69、81、81:1、81:2、81:3、81:4、83、88、90:1、101、101:1、104、108、108:1、109、112、113、114、122、123、144、146、147、149、151、166、168、169、170、172、173、174、175、176、177、178、179、181、184、185、187、188、190、193、194、200、202、206、207、208、209、210、214、216、220、221、224、230、231、232、233、235、236、237、238、239、242、243、245、247、249、250、251、253、254、255、256、257、258、259、260、262、263、264、265、266、267、268、269、270、271、272、273、274、275、276、277、278、279、280、281、282、283、284、285、286、287、291、295、296、C.I.颜料蓝1、1:2、9、14、15、15:1、15:2、15:3、15:4、15:6、16、17、19、25、27、28、29、33、35、36、56:1、60、61、61:1、62、63、66、67、68、71、72、73、74、75、76、78、79、C.I.颜料黄1、2、3、4、5、10、12、13、14、15、16、17、18、24、31、32、34、35、35:1、36、36:1、37、37:1、40、42、43、53、55、60、61、62、63、65、73、74、77、81、83、93、94、95、97、98、100、101、104、106、108、109、110、113、114、115、116、117、118、119、120、123、126、127、128、129、139、147、150、151、152、153、154、155、156、161、162、164、166、167、168、169、170、171、172、173、174、175、176、177、179、180、181、182、185、187、188、192、193、194、196、198、199、213、214、C.I.颜料紫1、1:1、2、2:2、3、3:1、3:3、5、5:1、14、15、16、19、23、25、27、37、29、31、32、37、37、39、42、44、47、49、50、C.I.颜料绿1、2、4、7、8、10、13、14、15、17、18、19、26、36、37、45、48、50、51、54、55、58、59。这些有机颜料可以单独使用,也可以根据所要求的色相适当组合两种以上使用。
另外,作为着色剂,也可以使用天然色素。作为天然色素,例如有类胡萝卜素系、花青素系、类黄酮类、醌系、卟啉系、二酮系、甜菜花青素系和嗜氮酮(azaphilone)系,例如,可以使用β-胡萝卜素、降胭脂树素、胭脂树橙、辣椒红色素、叶黄素、番茄红素、藏红花素、藏花酸、虾青素、矢车菊素葡萄糖苷、矢车菊素、芍药苷元、矢车菊素葡萄糖苷、飞燕草素葡萄糖苷、花色素苷(anthocyanin)、紫苏宁、丙二酰基紫苏宁、天竺葵素葡萄糖苷、可可多酚、芹菜定、木犀草定(luteolinidin)、聚合原花青素、羟基红花黄色素(safflomin)、红花素(carthamin)、胭脂红酸、紫胶色酸(Laccaic acid)、叶绿素、藻青素、姜黄素、甜菜苷、异甜菜苷、红曲黄素、红曲红素、环烯醚萜苷、环烯醚萜苷的酯水解物和真黑素。这些天然色素可以单独使用,也可以根据所要求的色相适当组合使用两种以上。
被覆颜料中的上述着色剂的一次粒径优选为1.0μm以下,更优选为0.001~0.8μm,进一步优选为0.005~0.6μm。若一次粒径为上述范围,则制成被覆颜料时,在涂布物中的触感良好且光滑,涂布时的铺展性良好,进而显色、光泽也良好。
在被覆颜料中的上述着色剂凝聚而形成了二次粒子的情况下,其粒径优选为0.005~2.0μm,更优选为0.01~1.0μm。若二次粒径为上述范围,则制成被覆颜料时,在涂布物中的触感良好且光滑,涂布时的铺展性良好,进而显色、光泽也良好。
被覆颜料中的着色剂优选比薄片状基材柔软。柔软度的程度可以通过莫氏硬度来测定。例如,薄片状基材的莫氏硬度优选为5.0以上,着色剂的莫氏硬度优选为5.0以下。通过使着色剂的莫氏硬度小于薄片状基材的莫氏硬度,能够得到更平滑的被覆颜料,涂布时的铺展性良好,进而显色、光泽也良好。
相对于被覆颜料总量,被覆颜料中的上述着色剂的含量例如为0.5~50质量%,优选为1.0~40质量%,更优选为1.0~30质量%。另外,着色剂的含量相对于薄片状基材100质量份例如为5~333质量份,优选为7~200质量份,更优选为10~100质量份。薄片状基材的比例为上述范围时,在制成被覆颜料时在涂布物中的触感良好且光滑,涂布时的铺展性良好,进而显色、光泽也良好。
上述被覆颜料可以进一步被包含选自由树脂、金属和金属氧化物组成的组中的至少一种以上作为成分的层被覆。例如,作为树脂,可列举丙烯酸树脂、聚氨酯树脂、苯乙烯树脂、醚树脂、环氧树脂,作为金属,可列举硅(Si)、铁(Fe)、铝(Al)、钠(Na)、钙(Ca)、镁(Mg)、钾(K)、铜(Cu)、锰(Mn)、钛(Ti)、银(Ag)、金(Au)、铂(Pt)、铅(Pb)、铬(Cr)、锡(Sn)、钼(Mo)、镓(Ga)、铟(In),作为金属氧化物,可列举这些金属的氧化物。
(其他成分)
被覆颜料除了薄片状基材和着色剂以外,还可以包含无机粉体、有机粉体作为其他成分。作为这样的无机粉体,可以列举氧化锆、氧化锌、氧化铈、氧化镁、硫酸钡、硫酸钙、硫酸镁、碳酸钙、碳酸镁、滑石、绢云母、硅酸、无水硅酸、硅酸铝、硅酸镁、硅酸铝镁、硅酸钙、硅酸钡、硅酸锶、钨酸金属盐、羟基磷灰石、蛭石、HIGILITE、膨润土、蒙脱石、锂蒙脱石、沸石、陶瓷粉末、磷酸氢钙、氧化铝、氢氧化铝、氮化硼、二氧化硅等。
另外,作为有机粉体,可列举聚酰胺粉末、聚酯粉末、聚乙烯粉末、聚丙烯粉末、聚苯乙烯粉末、聚氨酯粉末、苯并胍胺粉末、聚甲基苯并胍胺粉末、四氟乙烯粉末、聚甲基丙烯酸甲酯粉末、纤维素粉末、蚕丝粉末、尼龙粉末(12尼龙、6尼龙)、苯乙烯丙烯酸共聚物粉末、二乙烯基苯苯乙烯共聚物粉末、乙烯基树脂粉末、尿素树脂粉末、酚醛树脂粉末、氟树脂粉末、硅树脂粉末、丙烯酸树脂粉末、三聚氰胺树脂粉末、环氧树脂粉末、聚碳酸酯树脂粉末、微晶纤维粉体粉末、大米淀粉、月桂酰赖氨酸等。使用有机粉体和无机粉体时,其含量相对于被覆颜料总量例如为0.1~10质量%,优选为0.5~5质量%。
出于使着色剂分散稳定化的目的,被覆颜料可以包含油性基剂作为其他成分。作为这样的油性基剂,可以列举在常温(25℃)下为固体的蜡类、液体的液态油性成分。
作为上述蜡类,可以列举例如小烛树蜡、巴西棕榈蜡、米糠蜡、木蜡、葵蜡等植物系蜡、蜂蜡等动物系蜡、地蜡、纯地蜡、微晶蜡等矿物系蜡、固体石蜡等石油系蜡、硅酮蜡、合成蜂蜡等合成蜡。
作为上述液态油性成分,可以列举橄榄油、蓖麻油、霍霍巴油、澳洲坚果油、狗牙蔷薇(カニバラ)果油、可可脂、羊毛脂等植物系油;马油、龟油、野猪油、貂油、鲨鱼油等动物系油;凡士林、液体石蜡、异癸烷、异十二烷、辛基十二烷基酯、苹果酸二异硬脂酯、氢化聚异丁烯等烃系油、异壬酸异十三烷基酯、异硬脂酸异丙酯、二癸酸新戊二醇酯、异壬酸异十三烷基酯、二异硬脂酸甘油酯、三异硬脂酸甘油酯、苹果酸二异硬脂酯、辛基十二烷醇、N-月桂酰-L-谷氨酸二(植物甾醇/2-辛基十二烷基)酯等酯油;二甲基聚硅氧烷、苯基甲基聚硅氧烷等硅油;二聚酸酯、二聚体二醇衍生物、胆固醇脂肪酸酯、植物甾醇脂肪酸酯、聚甘油脂肪酸酯、季戊四醇脂肪酸酯、三2-乙基己酸甘油酯等。被覆颜料中的蜡类、液态油性成分的含量相对于被覆颜料总量例如为0.1~10质量%,优选为0.5~5质量%。
[被覆颜料的制造方法]
被覆颜料的制造方法中,作为使着色剂被覆于薄片状基材表面的方法,例如可以使用湿式法、气相法、固相法。作为湿式法,有在溶剂中使用化学吸附的方法,作为气相法,有使用升华使其直接被覆于基材表面的方法,作为固相法,有使用干式复合化装置的方法。在上述制造方法中,也可以使用吸附剂。
作为使用湿式法的被覆颜料的制造方法,例如,可以将对表面实施了羧酸处理的薄片状基材与着色剂、胺化合物在有机溶剂中混合,并进行过滤,从而通过酸-碱的化学吸附得到被覆颜料。此时,所使用的有机溶剂只要是薄片状基材不溶解的溶剂即可,着色剂可以溶解也可以不溶解。
着色剂通常通过在溶解或分散于有机溶剂中的状态下与薄片状基材接触而被均匀地覆盖。
作为使用气相法的被覆颜料的制造方法,例如,可以将薄片状基材和着色剂放入蒸发器中,一边旋转一边进行升温、减压,保持旋转一定时间后,一边缓慢恢复至常压一边冷却,从而得到被覆颜料。通过升温、减压,着色剂升华,成为气体状态的着色剂均匀地被覆于薄片状基材。
作为使用固相法的被覆颜料的制造方法,例如,可以将有机颜料等着色剂和薄片状基材进行预混,使着色剂和薄片状基材均匀地存在后,使用干式粒子复合化装置等搅拌着色剂和薄片状基材,从而施加压缩、剪切、冲击,使着色剂在薄片状基材表面延伸并固着,由此得到被覆颜料。
作为干式粒子复合化装置,可以优选使用产品名“NOBILTA(注册商标)NOB”(Hosokawa Micron株式会社制)。干式粒子复合化装置的搅拌圆周速度例如为5~20m/秒,优选为10~20m/秒(例如1000~5000rpm,优选为2000~4000rpm)。搅拌处理时间例如为1~10分钟,优选为2~5分钟。
本发明人等进行了研究,结果得知,在现有技术(例如上述专利文献1)中将搅拌圆周速度设为30m/秒以上,但将搅拌圆周速度设为30m/秒以上时,对预混的复合材料施加的力变得过大,有时从薄片状基材的端部破裂,表面状态变得不光滑。本发明中,通过设为适度的条件,能够得到具有迄今为止没有的表面光滑度的被覆颜料。
[化妆品、油墨、涂料、调色剂或成形物]
本发明中的化妆品、油墨、涂料、调色剂或成形物只要包含被覆颜料就没有特别限制。除了被覆颜料以外,可以适当配合适于各用途、目的的常规成分。
作为上述化妆品,例如可以列举粉底(腮红、遮瑕膏等)、底妆(隔离霜、打底霜等)、香粉(散粉)、口红(唇膏、口红、唇彩、唇笔、胭脂、透明唇膏、唇线笔等)、眼妆(眼影、眼色、眼线笔、眉黛、眉笔、眉刷、睫毛液、睫毛膏等)、面颊化妆品(胭脂、腮红、胭脂等)、指甲化妆品(指甲油、指甲护理、彩色指甲油、趾甲油、足部护理、指甲漆、亮甲油、护甲油等)、毛发着色剂(染发剂、发胶、喷发剂、染发棒、着色护发素、发膏等)。
关于上述油墨,特别是作为印刷油墨,例如可以列举平版(offset)油墨、凸版油墨、凹版(gravure)油墨、孔版(screen)油墨、柔版油墨、UV固化油墨、水性油墨、油性油墨、植物油油墨、报纸油墨、喷墨用油墨。
作为上述涂料,例如可以列举粉体涂料、水性(水系)涂料、环氧树脂涂料、聚氨酯树脂涂料、氟树脂涂料、聚酯树脂涂料、三聚氰胺树脂涂料、丙烯酸树脂涂料等合成树脂涂料。
上述调色剂是在激光打印机和复印机中使用的、使颜色粒子附着于具有带电性的塑料粒子而成的微米尺寸的粉,被覆颜料可以作为颜色粒子使用。
上述成形物是使用包含被覆颜料作为塑料着色剂的树脂而成形的。作为塑料着色剂,有母料(MB)、着色颗粒/着色复合物、干性色粉、浆色/液体色母料等形态,可以为任一形态。
实施例
以下,使用实施例和比较例对本发明进行更详细的说明。在本实施例的记载中,“份”是指“质量份”。通过以下的方法制作实施例1-6和比较例1-4的被覆颜料和使用了被覆颜料的涂料展色纸(样品),进一步通过以下的方法进行评价。将评价结果示于表1。
[实施例1]
将市售的红色104号(C146623,SunChemical制)4.0份和用氧化钛被覆的云母粒子A(粉红色的云母粒子)36.0份进行预混。接着,使用干式粒子复合化装置(产品名“NOBILTA(注册商标)NOB”、HosokawaMicron株式会社制、使用Φ=86mm刮板),以3000rpm处理3分钟后,取出,得到被覆颜料(1)。被覆颜料(1)的SEM图像为图1。
以上述得到的被覆颜料(1)0.87份、Acridic A-801-P(DIC株式会社制)12.6份、Desmodur N-75(住化Covestro Urethane株式会社制)3.9份、二甲苯1.6份、乙酸乙酯1.0份的比例配合,用行星式研磨机分散3分钟,由此制备涂料组合物(1)。将得到的涂料组合物(1)用10mil的敷料器在黑底的纸上展色,得到涂料展色纸(1)。
[实施例2]
在实施例1中将红色104号变更为红色202号(C19-7720,SunChemical制),将云母粒子A变更为用氧化钛被覆的云母粒子B(红色的云母粒子),除此以外,与实施例1同样地进行,得到被覆颜料(2)和涂料展色纸(2)。
[实施例3]
在实施例1中,将红色104号4.0份变更为蓝色1号(C39-4433,SunChemical制)5.5份,将云母粒子A变更为用氧化钛被覆的云母粒子C(蓝色的云母粒子)34.5份,除此以外,与实施例1同样地进行,得到被覆颜料(3)和涂料展色纸(3)。
[实施例4]
在实施例1中将红色104号变更为喹吖啶酮颜料(FASTOGEN SUPER MAGENTARTS,DIC制),除此以外,与实施例1同样地进行,得到被覆颜料(4)和涂料展色纸(4)。
[实施例5]
在实施例1中将红色104号变更为铜酞菁颜料(FASTOGEN BLUE TGR-SD,DIC制,平均粒径0.05μm),将云母粒子A变更为用氧化钛被覆的云母粒子C,除此以外,与实施例1同样地进行,得到被覆颜料(5)和涂料展色纸(5)。
[实施例6]
在实施例1中将红色104号变更为铜酞菁颜料(BLUE CRUDE B-8/LC,DIC制,平均粒径3μm),将云母粒子A变更为用氧化钛被覆的云母粒子C,除此以外,与实施例1同样地进行,得到被覆颜料(6)和涂料展色纸(6)。
[实施例7]
在实施例1中将云母粒子A变更为用氧化钛被覆的铝粒子(MAXAL 76044EC,SunChemical制),使用干式复合化装置以3000rpm处理10分钟,除此以外,与实施例1同样地进行,得到被覆颜料(11)和涂料展色纸(11)。
[实施例8]
在实施例1中,将红色104号变更为蓝色1号(C39-4433,SunChemical制),将云母粒子A变更为用氧化钛被覆的硼硅酸玻璃粒子(Reflecks Dimensions Shimmering WhiteG130Z,Color&Effect Japan株式会社),使用干式粒子复合化装置以2000rpm处理5分钟,除此以外,与实施例1同样地进行,得到被覆颜料(12)和涂料展色纸(12)。
[比较例1]
除了在实施例1中将NOBILTA变更为AMS-MINI以外,与实施例1同样地进行,得到被覆颜料(7)和涂料展色纸(7)。被覆颜料(7)的SEM图像如图2所示。
[比较例2]
在实施例2中将NOB-MINI变更为AMS-MINI,以1500rpm处理1分钟,除此以外,与实施例2同样地进行,得到被覆颜料(8)和涂料展色纸(8)。
[比较例3]
除了在实施例3中将NOB-MINI变更为AMS-MINI以外,与实施例3同样地进行,得到被覆颜料(9)和涂料展色纸(9)。
[比较例4]
除了在实施例4中将NOB-MINI变更为AMS-MINI以外,与实施例4同样地进行,得到被覆颜料(10)和涂料展色纸(10)。
[比较例5]
在实施例7中将干式粒子复合化时间从10分钟变更为3分钟,除此以外,与实施例7同样地进行,得到被覆颜料(13)和涂料展色纸(13)。
[比较例6]
将实施例8中干式粒子复合化处理的转速从2000rpm变更为3000rpm,将处理时间从5分钟变更为1分钟,除此以外,与实施例8同样地进行,得到被覆颜料(14)和涂料展色纸(14)。
[评价:粗粒面积率的计算方法]
利用扫描型电子显微镜(VE-7800,KEYENCE公司),以图像仅在被覆颜料表面的方式以10000倍的倍率进行拍摄。使用图像处理软件(Image J)以能够识别粗粒的方式调整阈值对图像进行二值化处理,算出图像的除上下左右5%以外的区域的粗粒占有面积率。针对一种被覆颜料,对10片分别进行同样的处理,将其平均值作为粗粒面积率。例如,如果对实施例1的被覆颜料(1)进行白和黑的二值化处理,则如图3所示。
[评价:MIU的测定]
使用摩擦感测试仪(KES-SE,KATOTECH株式会社),在展开于试样台上的样品上放置传感器,使其滑动,由此测量摩擦系数MIU值。需要说明的是,去掉初始5mm和最终5mm的数据,采用20mm间的数据。MIU值越小,触感越平滑。
[评价:光亮强度的测定]
使用多角度测色器(BYK-maci)对得到的涂料展色纸进行3点测色,得到45°的Si值(光亮强度)的平均值。
[表1]
粗粒面积率 MIU平均值 Si值平均值
实施例1 被覆颜料(1) 2.07% 0.389 8.6
比较例1 被覆颜料(7) 19.0% 0.471 8.0
实施例2 被覆颜料(2) 2.68% 0.687 9.2
比较例2 被覆颜料(8) 46.3% 0.770 2.4
实施例3 被覆颜料(3) 2.01% 0.382 10.2
比较例3 被覆颜料(9) 19.8% 0.444 10.2
实施例4 被覆颜料(4) 0.58% 0.567 11.3
比较例4 被覆颜料(10) 11.6% 0.595 7.4
实施例5 被覆颜料(5) 1.57% 0.490 12.9
实施例6 被覆颜料(6) 4.07% 0.577 12.0
实施例7 被覆颜料(11) 5.23% 0.574 13.6
比较例5 被覆颜料(13) 14.16% 0.594 13.1
实施例8 被覆颜料(12) 8.69% 0.662 117.7
比较例6 被覆颜料(14) 20.17% 0.716 99.5
分别比较着色剂完全相同的实施例1和比较例1、实施例2和比较例2、实施例3和比较例3、实施例4和比较例4、实施例7和比较例5、实施例8和比较例6可知,粗粒面积率低的实施例的MIU平均值低,触感良好。另外,与比较例相比,实施例的Si值为同等以上,可知维持或提高了由光亮强度表示的闪亮感。进而,通过放大SEM图像观察实施例1(被覆颜料(1);图1)和比较例1(被覆颜料(7);图2)的颜料表面时,可知:在图1中,与图2相比,表面明显平滑,粗粒少。
实施例5和实施例6虽然一次粒径的粒径不同,但能够得到MIU平均值充分低、Si值高的样品。

Claims (6)

1.一种颜料,其为由至少一种金属或金属氧化物构成的薄片状基材的表面被着色剂被覆的被覆颜料,所述薄片状基材表面的粗粒面积率为9%以下。
2.根据权利要求1所述的颜料,其中,所述薄片状基材为选自由云母、铝、氧化铝和玻璃组成的组中的至少一种以上。
3.根据权利要求1或2所述的颜料,其中,作为所述着色剂,包含至少一种以上的有机颜料。
4.根据权利要求1~3中任一项所述的颜料,其中,所述薄片状基材的表面进一步被包含选自由树脂、金属和金属氧化物组成的组中的至少一种以上作为成分的层被覆。
5.根据权利要求1~4中任一项所述的颜料,其中,所述颜料进一步被包含选自由树脂、金属和金属氧化物组成的组中的至少一种以上作为成分的层被覆。
6.一种化妆品、油墨、涂料、调色剂或成形物,其包含权利要求1~5中任一项所述的颜料。
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