Process for the preparation of pigments having improved colouristic properties
    1.
    发明公开
    Process for the preparation of pigments having improved colouristic properties 有权
    Verfahren zur Herstellung von Pigmenten mit verb desserten coloristischen Eigenschaften

    公开(公告)号:EP1411091A1

    公开(公告)日:2004-04-21

    申请号:EP03104951.3

    申请日:2000-06-23

    摘要: The invention relates to a process for preparing pigments, which comprises

    subjecting a crude pigment or mixture of crude pigments and a crystalline inorganic salt or mixture of crystalline inorganic salts together, essentially in the absence of other constituents, to the action of a rotor having a tangential speed of at least 10 m/s, so that a temperature of at least 80°C is attained by means of friction effects; and subsequently
    kneading the product of this treatment with an organic liquid, during which it is possible if desired to add additional substances selected from the group consisting of inorganic salts, inert additives and colorants.

    These pigments and their use in polymers, printing inks and colours filters are also claimed.

    摘要翻译: 颜料的制备包括:(1)将不存在其它组分的粗颜料和结晶无机盐在切向速度至少为10m / s的转子上进行,以获得至少80° 摩擦效应; 和(2)与有机液体混合,如果需要,加入另外选自无机盐,惰性添加剂和着色剂的物质。 还包括以下独立权利要求:(a)通过步骤(1)将粗颜料转化为无定形细颗粒形式。 (b)通过捏合包含式(I)化合物,结晶无机盐和有机液体的组合物来制备颜料。 在捏合开始时,化合物(I)为无定形形式,有机液体在其分子中含有至少一个氧代基团。 有机液体与无机盐的比例为1ml:6g至3ml:7g,有机液体与无机盐的总重量和式(I)的颜料的比例为1ml:2.5 g至1ml:7.5g。 (c)在凹版印刷中用干燥后的施加量测量的式(I)颜料为0.860g / m 2>,其颜料为0.068g / m 2>; 通过在白色牛皮纸上打印。 干燥后,颜料的亮度(L *)不大于48,色度(C *)至少为53,色相角(h)为295-315。 印刷油墨通过以下步骤制备:(i)将颜料(30),溶解在溶液中的(wt。%)分散树脂(30)和异丙醇(7)的水溶液(30)分散(重量份) 实验室溶解器以6000转/分钟(rpm)和23±2℃进行15分钟,然后在含有6000rpm和30±10℃直径为1.1±0.1mm的陶瓷珠的珠磨机中, C 10分钟; 和(ii)在实验室溶解器中以6000rpm和23±2℃的水溶液(900重量份)稀释所得分散体,所述水溶液含有(wt。)聚合丙烯酸酯(18)溶解在溶液中和异丙醇(15) 15分钟。 (d)喹吖啶酮,蒽醌,苝,靛蓝,喹酞酮,阴丹酮,异吲哚啉酮,二恶嗪,偶氮,酞菁或二酮吡咯并吡咯系列(优选1,4-二酮吡咯并[3,4] - 吡咯,特别是CI颜料红 254(颜料)式(II)),其包含(0-8)重量%的平均粒度为0.01-0.12μm的颗粒,基于大小为0.01-0.1μm的颗粒的重量。 CuK-α辐射X射线粉末图的半峰全宽为0-0.68 [度]2θ。 (e)式(II)的颜料在甲基丙烯酸树脂中的50%分散体。 将该分散体作为厚度施加使得在400-700nm的区域中的吸收最大值具有1.0±0.1的强度。 最大值出现在波长556-596(特别是557 - 565)nm。 优选地,吸收最大值的红移侧的最大斜率(在反转点处)基于吸收最大值的吸收达到每1nm波长变化的吸收的至少5%的变化。 (f)印刷油墨浓缩物,其包含存在于粘合剂溶液中的分散体中1-75(优选5-50,特别是25-40)重量%的式(I)或(II)颜料。 (g)一种滤色器,其包括透明的,基本上无色的底物和包含1-75(优选5-50,特别是25-40)重量%的分散在高分子中的式(I)或(II)颜料的层 分子量有机材料。 (h)一种制备滤色剂的组合物,其包含(wt。%)高分子量有机材料和分散在其中的式(I)或(II)(0.01-40,优选1-25,特别是5-10)的颜料 材料。 (i)包含(重量%)式(I)或(II)的颜料(0.05-70)和高分子量有机材料(99.95-30))的大量着色的高分子量有机材料。 (j)通过在其中加入式(I)或(II)的颜料,使质量中的高分子量有机材料着色。

    Highly crystalline pigment having an average particle size from 0.01 microm. to 0.12 microm. and improved colouristic properties

    公开(公告)号:EP1411092A1

    公开(公告)日:2004-04-21

    申请号:EP03104957.0

    申请日:2000-06-23

    摘要: The invention relates to substantially crystalline organic pigments of the quinacridone, anthraquinone, perylene, indigo, quinophthalone, indanthrone, isoindolinone, isoindoline, dioxazine, azo, phthalocyanine or diketopyrrolopyrrole series consisting of particles of average size from 0.01 µm to 0.12 µm, having a full width at half maximum of a a CuK α radiation X-ray powder diagram of from 0 to 0.68 °2θ and prepared by a process which comprises

    subjecting a crude pigment or mixture of crude pigments and a crystalline inorganic salt or mixture of crystalline inorganic salts together, essentially in the absence of other constituents, to the action of a rotor having a tangential speed of at least 10 m/s, so that a temperature of at least 80°C is attained by means of friction effects; and subsequently
    kneading the product of this treatment with an organic liquid, during which it is possible if desired to add additional substances selected from the group consisting of inorganic salts, inert additives and colorants.

    The use of these pigments in polymers, printing inks and colours filters is also claimed. The invention in particular relates to a highly crystalline novel form of Pigment Red 254
    (II), obtained by above-mentioned process, and having a steep slope on the bathochromic side of the absorption spectrum's maximum, and the use thereof in particular in colour filters.