Capim™ Brazilian clays
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Capim clays are used in coating and filling applications, they offer the perfect combination of high brightness, narrow particle size and low abrasion resulting in optimal brightness, opacity and printability |
Description | ||
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Capim clays from our high-quality kaolin deposit in northern Brazil exhibit a “naturally engineered” morphology that gives them an unparalleled combination of high brightness, narrow or “steep” particle size and low abrasion. Capim clays make excellent functional fillers and coating agents where they confer optimum brightness and opacity along with excellent printability to the final paper. The combination of a coarse, steep Particle Size Distribution (PSD) together with high brightness and low abrasion gives coarse Capim filler grades a unique balance of properties. Their coarse, steep particle size boosts machine runnability through improved dewatering, better retention and good paper strength, while low abrasion prolongs wire life. Capim grades also improve paper quality due to the combination of high natural brightness and decreased absorption. When used in the topcoat, Capim grades deliver optical benefits, increased bulk and improved mottle performance against conventional glossing kaolins. These benefits in bulk and optics can enable gloss to be optimized through calendaring. Their use can help reduce expensive opacifiers such as TiO2 in coating recipes. The low level of ultrafine particles and low surface area of Capim clays improve coating strength enabling binder reduction compared to fine glossing kaolins or giving improved glueability in board and packaging applications. The Capim coating range is ideal for: - Coated B&P: Brightness, reduced mottle, glue ability - LWC: Brightness, rheology, MSP runnability, gloss - MWC/CFS: Excellent scatter, rheology, gloss, opacity - Topcoat CWF: Brightness, reduced mottle, for gloss, silk matte and single coat Key benefits: - High performance coatings - Functional filler - Cost optimization |
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Documents
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General Info
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Published | ||
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Dec 20, 2022 |
Last Edited | ||
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Dec 20, 2022 |
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Chemicals |
