Ethyl hydroxyethyl cellulose (EHEC) is a water-soluble polymer that is commonly used in the paper industry as a retention aid and drainage aid. It is typically added to the pulp during the papermaking process to improve the retention of fillers and fibers and to increase drainage rates. EHEC can also be used in paper coating colors to improve the performance of the coating and enhance the quality of the final product.
Paper coating colors are formulations that are applied to paper to improve its surface properties, such as brightness, smoothness, gloss, and printability. Coating colors typically consist of a mixture of pigments, binders, fillers, and additives that are dispersed in water to form a slurry. The slurry is then applied to the paper using a variety of coating methods, such as blade coating, rod coating, or air knife coating.
EHEC is commonly used as a binder in paper coating colors to improve their adhesion to the paper and increase their strength and durability. It is also used as a thickener to improve the viscosity and stability of the coating color, which can help to reduce the occurrence of defects such as streaks, pinholes, and coating voids. EHEC can also improve the gloss and smoothness of the coated paper surface, which can enhance the printability and visual appeal of the final product.
One of the key advantages of using EHEC in paper coating colors is its ability to form a strong, flexible film that can withstand the stresses of the papermaking process and the rigors of handling, shipping, and storage. EHEC can also improve the water resistance and ink absorption properties of the coating, which can improve the quality and durability of the printed image.
Another advantage of using EHEC in paper coating colors is its compatibility with other ingredients commonly used in coating formulations. EHEC can be easily incorporated into coating color formulations without negatively impacting the performance of other ingredients such as pigments, fillers, and dispersants. EHEC can also be used in combination with other binders, such as styrene-butadiene latex (SBL) and polyvinyl alcohol (PVOH), to enhance the performance of the coating.
ethyl hydroxyethyl cellulose (EHEC) is a versatile polymer that can be used in paper coating colors to improve their performance and enhance the quality of the final product. EHEC can improve the adhesion, strength, and durability of the coating, as well as the gloss, smoothness, and printability of the coated paper surface. Its compatibility with other ingredients commonly used in coating formulations makes it an attractive option for paper manufacturers looking to improve the performance of their coating colors.