Trinity Resources has introduced a mineral-based antiblock additive for film production that it says combines the best properties of conventional mineral types such as talc and nepheline syenite.
Altiblock is an alternative antiblock made from Trinity's pyrophyllite deposit in Newfoundland, Canada. The mineral is a hydrous aluminum silicate that offers talc-like plate particles and irregular, blocky particle shapes that combine for high blocking performance, clarity, film strength, barrier resistance and thermal efficiency, according to the company based in Conception Bay South, Newfoundland.
Other properties of Altiblock include low iron content, low hardness, good refractive index and low moisture content.
Trinity says the new antiblock is available in 2, 4, 6 and 9 micron particle sizes, each with a distinct particle size distribution.
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