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Filler or pigment or processed mineral for paper, in particular a pigment containing natural CaCO3, its manufacturing process, preparations containing it and their applications
Filler or pigment or processed mineral for paper, in particular a pigment containing natural CaCO3, its manufacturing process, preparations containing it and their applications
The invention concerns a pigment, filler or mineral containing a natural calcium carbonate, treated with one of more providers of H3O+ ions and gaseous CO2, allowing a reduction in the weight of paper for a constant surface area without loss of physical properties when it is used as a pigment or coating filler for the said paper. In particular, the invention concerns a pigment, filler or mineral containing a natural calcium carbonate or dolomite or mixtures of talc and calcium carbonate, of kaolin and carbonate or carbonate alone or in combination with natural and/or synthetic fibres or similar, treated with one or more medium-strong or strong providers of H3O+ ions in the presence of gaseous CO2.;Applications are particularly in the paper industry, obtaining in particular good sheet properties i.e. a reduction its weight for a given surface area.
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机译:本发明涉及含有天然碳酸钙的颜料,填料或矿物,其用一种或多种H 3 Sub> O + Sup>离子提供者和气态CO 2 处理。其次,当将其用作所述纸的颜料或涂料填料时,可以在恒定表面积下减少纸的重量而不会损失物理性能。特别地,本发明涉及一种颜料,填料或矿物,其包含天然碳酸钙或白云石或滑石与碳酸钙的混合物,高岭土和碳酸钙或碳酸盐的单独或与天然和/或合成纤维或类似物组合的,用一种或多种处理的颜料,填料或矿物。或在气态CO 2 Sub>存在下提供H 3 Sub> O + Sup>离子的中等强度或强强度提供者;尤其是在论文中的应用在工业上,特别是获得良好的片材性能,即降低给定表面积的重量。
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