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公开(公告)号：US4943324A
公开(公告)日：1990-07-24
申请号：US197357
申请日：1988-05-23
CPC分类号： C09C1/42 , D21H17/68 , D21H17/69 , D21H19/42 , D21H21/52 , C01P2004/32 , C01P2004/51 , C01P2004/52 , C01P2004/61 , C01P2004/62 , C01P2006/60
摘要： A high bulking kaolin pigment is provided which exhibits improved opacifying efficiency as a paper filler. The kaolin pigment comprises an uncalcined clay composition consisting essentially of kaolin particles which have not only been treated with an amine, but also upon which aluminum hydroxide has been precipitated, and, of which less than about 20% by weight have a particle size less than 0.3 microns in equivalent spherical dimeter. Further, a method is provided for producing the pigment from a hydrated kaolin clay having a brightness of at least about 89. The selected starting clay is dispersed in water and subjected as a slurry to delamination, defining, surface treatment with an amine and aluminum sulfate, and leaching. The treated kaolin slurry is subsequently rinsed and filtered to a produce a filter cake which is redispersed to yield a commercial paper filler.
摘要翻译： 提供了一种高填充高岭土颜料，其表现出作为纸填料的改善的不透明效率。 高岭土颜料包括基本上由高岭土颗粒组成的未煅烧的粘土组合物，其不仅已经用胺处理，而且已经沉淀了氢氧化铝，并且其中小于约20重量％的颗粒尺寸小于 0.3微米的等效球形二极管。 此外，提供了一种从亮度至少约为89的水合高岭土制备颜料的方法。所选择的起始粘土分散在水中，并作为浆料进行分层，用胺和硫酸铝进行表面处理 ，和浸出。 随后将经处理的高岭土浆液漂洗并过滤至产生的滤饼，该滤饼再分散以产生商业纸填料。
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公开(公告)号：US4076548A
公开(公告)日：1978-02-28
申请号：US754905
申请日：1976-12-27
CPC分类号： C09C1/42 , C01P2004/61 , C01P2006/60 , Y10S106/03
摘要： A high bulk clay product and method of making the same are provided in which kaolinite is selectively flocculated to produce an ultra fine particle fraction in the presence of fine mica below 150 mesh in size and the resulting flocculant is collected and dried.
摘要翻译： 提供了高体积粘土产品及其制备方法，其中高岭石在尺寸小于150目的细云母存在下选择性絮凝以产生超细颗粒级分，并收集并干燥所得絮凝剂。
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公开(公告)号：US5749958A
公开(公告)日：1998-05-12
申请号：US677758
申请日：1996-07-10
CPC分类号： D21H17/68 , C09C1/42 , D21H19/40 , C01P2004/20 , C01P2004/32 , C01P2004/51 , C01P2004/52 , C01P2004/61 , C01P2004/62 , C01P2006/12 , C01P2006/60
摘要： Paper coating pigments comprising a product obtained by the controlled mechanical delamination of kaolin particles. The pigments provide improved opacification, brightness, printing properties and gloss compared to conventional delaminated kaolin pigments. The pigment of the invention is particularly useful for coating light weight printed paper and provides a unique combination of high opacity, brightness and gloss not available when using other kaolin pigments. The novel pigment is specifically designed to replace plastic pigments and (or) titanium dioxide in coating formulations while maintaining or improving desired paper properties.
摘要翻译： 纸涂料颜料包括通过高岭土颗粒的受控机械分层获得的产物。 与常规的分层高岭土颜料相比，颜料提供了改善的不透明度，亮度，印刷性能和光泽。 本发明的颜料特别适用于涂覆轻质印刷纸，并提供使用其它高岭土颜料时不可获得的高不透明度，亮度和光泽的独特组合。 新颖的颜料是专门设计用来替代涂料配方中的塑料颜料和（或）二氧化钛，同时保持或改善所需的纸张性能。
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公开(公告)号：US5085707A
公开(公告)日：1992-02-04
申请号：US537979
申请日：1990-06-14
IPC分类号： C04B33/04 , C09C1/42 , C09D7/12 , D21H17/68 , D21H17/69 , D21H19/38 , D21H19/40 , D21H19/42 , D21H21/52
CPC分类号： C04B33/04 , C09C1/42 , D21H17/68 , D21H17/69 , D21H19/40 , D21H19/42 , D21H21/52 , C01P2004/32 , C01P2004/51 , C01P2004/52 , C01P2004/61 , C01P2004/62 , C01P2004/84 , C01P2006/22 , C01P2006/60 , C01P2006/80
摘要： A defined and delaminated kaolin composition exhibiting high opacity is produced by defining and delaminating a base kaolin clay so as to reduce its colloidal content. The defined and delaminated kaolin composition may also be treated with hexamethylenediamine and aluminum sulfate to further enhance opacity. Whether treated or untreated, the defined and delaminated kaolin composition functions superiorly in paper coating formulations, alone or blended with known coating clays, improving the opacity, print gloss, sheet gloss and printability of paper sheet coated therewith.
摘要翻译： 通过限定和剥离基础高岭土以减少其胶体含量，产生显示高不透明度的定义和分层的高岭土组合物。 定义的和分层的高岭土组合物也可以用六亚甲基二胺和硫酸铝处理以进一步增强不透明度。 无论处理还是未处理，定义和分层的高岭土组合物在纸张涂布配方中单独或与已知涂层粘土混合起到优异的作用，改善了涂布纸张的不透明度，印刷光泽度，片材光泽度和可印刷性。
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公开(公告)号：US4075030A
公开(公告)日：1978-02-21
申请号：US820856
申请日：1977-08-01
CPC分类号： C09C1/42 , C01P2004/61 , C01P2006/60 , Y10S106/03
摘要： A high bulk clay product and method of making the same are provided in which kaolinite is selectively flocculated to produce an ultra fine particle fraction in the presence of fine mica below 150 mesh in size and the resulting flocculant is collected and dried.
摘要翻译： 提供了高体积粘土产品及其制备方法，其中高岭石在尺寸小于150目的细云母存在下选择性絮凝以产生超细颗粒级分，并收集并干燥所得絮凝剂。
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6.发明授权Delaminated kaolin pigments, their preparation and use in paper filling applications 失效分层高岭土颜料，其制备和用于纸张填充应用
公开(公告)号：US5645635A
公开(公告)日：1997-07-08
申请号：US535416
申请日：1995-09-28
CPC分类号： D21H19/40 , C09C1/42 , D21H17/68 , C01P2004/20 , C01P2004/32 , C01P2004/51 , C01P2004/52 , C01P2004/61 , C01P2004/62 , C01P2006/12 , C01P2006/60
摘要： This invention relates to paper filling pigments comprising novel mechanically delaminated kaolin particles having controlled narrow particle size distribution and shape. The pigments provide improved opacification compared to conventional and engineered kaolin particles in fine paper making.
摘要翻译： 本发明涉及包含具有受控窄粒度分布和形状的新型机械分层高岭土颗粒的纸填充颜料。 与高级造纸中的常规和工程高岭土颗粒相比，颜料提供了改善的不透明度。
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