Process for preparing self-binding pigment particle suspensions
AssigneeOmya International AG
InventorsDaniel Gantenbein, Joachim Schoelkopf, Patrick A.C Gane
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Abstract
The invention relates to a process for preparing self-binding pigment particle suspensions, to a self-binding pigment particle suspension as well as to a paper product comprising self-binding pigment particles and to the use of the self-binding pigment particle suspension as filler material.
Claims25
Process for preparing self-binding pigment particle suspensions, the process comprises the following steps:
- a) providing an aqueous pigment material suspension,
- b) providing at least one polymeric binder, wherein the binder comprises at least one polysaccharide comprising galactose and/or mannose units,
- c) mixing the binder of step b) with the aqueous pigment material suspension of step a), and
- d) grinding the aqueous pigment material suspension of step c),
- wherein in step c) the binder is added to the aqueous pigment material suspension in an amount from 0.1 wt.-% and 10 wt.-%, based on the total weight of the pigment material suspension.
A paper product comprising self-binding pigment particles, wherein the pigment particles are at least partially coated with at least one polysaccharide comprising galactose and/or mannose units.
(canceled)
Dependencies are inferred from the claim text.