Лако-красочные материалы — производство

Carboxymethyl cellulose, generally as its sodium salt, is the most widely used cellulose ether. CMC is water soluble with a DS of 0.4-1.2 in common applications. It was origin­ally used as a replacement for natural gums in adhesives, but it has since developed many uses of its own. Sodium carboxymethyl cellulose is readily water soluble because of its ionic nature; its largest use is in laundry detergents, where it helps to suspend soil particles during washing. This resistance to greases and soil has made CMC useful in fabric sizing as a soil repellant. Because CMC is completely nontoxic, it is used in many food applica­tions, where its affinity for water prevents drying of the product. Although it is generally no longer used as an adhesive, per se, it is still used in adhesives as a thickener.