Carboxymethylated polysaccharide-based films as carriers for acrylic pressure-sensitive adhesives

A novel application of a biodegradable polysaccharide-based film as a pressure-sensitive acrylic adhesive carrier has been reported. For film preparation carboxymethyl derivatives of starch (CMS) and cellulose (CMC) have been used. Based on physicochemical tests results (solubility in water, moisture absorption, mechanical properties) the most promising CMS/CMC 50/50 wt% film was selected as a carrier for an acrylic pressure-sensitive adhesive tape. Prepared double-sided self-adhesive tapes were characterized by good tack 5 N/2.5 cm, peel adhesion 12 N/2.5 cm and shear strength 90 N/6.25 cm2 at 20 °C. Such acrylic self-adhesive tapes could find application in the paper industry.