One of the major consumers of talc is the paper industry (especially Europe & Japan.) As paper filler talc has a minimal negative effect on sheet strength but improves ink receptivity. It also reduces gloss but enhances opacity & brightness.
The main reason for the growth of talc consumption in paper is the availability of high quality micronized talc.
When Talc is used as a Titanium dioxide extender in paper it has a distinct weight advantage, a specific gravity of 2.8 vs. 4.2 for TiO2. This advantage become more important as postal rates increase.
The unique property of preferentially wetting oily substances in the presence of water makes talc extremely effective in pitch control. Pitch & other oleo resinous components of paper pulps cause serious manufacturing problems if they are not controlled. Talc micronized to a surface area of 12 m2/g or more, absorbs the pitch and helps prevent accumulations that would otherwise deposit on the rolls, wire, and other parts of the paper machine.
The talc products can be used to pigment latex, starch, or alpha protein coating colors. Ultra fine talc products can be used with clay, calcium carbonate, and titanium dioxide pigments to control rheological properties, calendaring, gloss, ink holdout, opacity & brightness.
Our Talc exhibits the following characteristics. |
|
