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<td valign="top" colspan="2"><img src="images/headers/paper_coatings1hd.jpg" width="570" height="64" border="0" alt="Paper Coatings"></td>
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INEOS Silicas has more than 60 years experience in silica technology and an excellent track record in the development and supply of silicas to the ink and coated media industry. The benefits of using silica to enhance the performance of paper coatings arise from the silica's particulate structure and its pore characteristics.
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From extensive study into how these factors influence the performance of the coated paper, INEOS Silicas is able to guide the coatings formulator in their choice of GASIL silica. The wide range of products available offers flexibility in designing coatings for specific film and paper coatings requirements.
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Benefits of GASIL Silicas in Paper Coatings:
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<LI>Products with proven all-round enhancement of the ink-receptivity of coated media.
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<LI>Excellent ink absorption characteristics for rapid ink dry.
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<LI>High purity, inert - compatible with other coatings ingredients.
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<LI>ISO 9002 - consistent, reproducible results.
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<LI>Global availability backed up with a comprehensive technical service.
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<span class="hd5blue">How silica works in paper coatings</span>
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Specialist coatings are applied to a base substrate, commonly paper or film, to produce a smooth and uniform ink receptive surface. In the case of paper, the coating also helps to improve the appearance of the sheet, although imperfections such as holes and lumps will still be visible.
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Incorporation of GASIL products into these coatings results in coated paper or film which produce high quality printed images, for example the improvement in the ink receptivity of the paper can be attributed to the high porosity of the GASIL silica. This allows rapid absorption of the liquid phase of the ink into the coating, thus leaving the dye/pigment at the surface. Additionally, depending on the grade of silica selected, varying degrees of gloss reduction and tooth (sensitivity of the surface to pencil or ink marking) can be achieved.
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<td class="bodysmall">Figure 1</td>
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<td class="bodysmall"><img src="images/pictures/paper_coatings_image2.jpg" width="60" height="63" border="0"></td>
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<td>Figure 2</td>
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