Hanaakia talc makes excellent low-abrasion, high-retention filler grades for paper, where they:
• Provide high retention.
• Impart good mechanical properties to the paper.
• Provide fast dewatering.
• Improve wet web strength.
• Reduce drying time.
• Can be used under acid and neutral conditions.
• Reduce dye usage.
• Reduce core bursts and crepe wrinkles, improving printing press runnability.
• Improve smoothness, lowering surface friction and enabling jumbo roll production.
• Strengthen resistance to fold breaks during reel changes reducing broke levels.
• Maximize ink transfer, bringing better image quality in the halftone area and reducing missing dots.
• Allow increased usage of high brightness pigments including calcium carbonate – in coating formulations.
• in mills operating under alkaline conditions.
• Give low high shear viscosity, allowing higher solids and improved fiber coverage.
• Confer good coating hold-out.
• Solve ink scuff problems in papers with a high calcium carbonate content.
• Improving readability and touch.
• Provide a matte effect (lower sheet gloss, higher print gloss).
• Control ink drying speed, decreasing print mottle and improving opacity.
• Talc is an organophilic, so absorbs impurities from the process, such as pitch, resin particles. Hence, talc is used as a cleaner of the wet-end system of the paper machine.
• Talc as a coating pigment can improve the viscosity and the water retention of coating color, the compressibility of coating layer, and hence gravure printability. Talc is also well known for its larger particle size than other pigments,
• As talc is organophilic it is helps to reduce dye consumption and two-sidedness in colored paper.
A combination of magnesium oxide is one of the most abundant compounds in Hannakia talc, accounting for over 32% of its mass. This combination is very important in the paper industry. It is used to provide moisture resistance and increase the mechanical strength of paper, and also to use atomized magnesium oxide solutions to acidify paper products.
Silica is used as an excellent filler and reinforcing agent for paper. Silica can be used by creating properties such as a matte effect, surface improvement, and abrasion
resistance in coatings. The silica in the paper cover improves the smoothness of the surface and stabilizes the ink on the paper. More than 62% of the weight of Hanaakia talc is silica.
Iron is another element that accounts for more than 5% of weight in Hanaakia talc and is widely used in the paper industry. Iron produces properties such as good electrical conductivity, relatively high melting temperature, and material texture. With the increasing use of metals, especially iron in papermaking, the role of iron is becoming more and more important, especially in the form of factory machinery and industrial writing instruments. Gift wrapping paper, tissue paper, multi-layer paper and various other papers are types of paper in which paper machines play an important role in their production.p>