1results about How to "Reduce particle count" patented technology

A method for recycling cellulose acetate, which comprises the following steps: dissolving the waste tow, waste filter rod or waste mouth rod generated in the process of producing filter rod for cigarettes after removing impurities in acetic acid aqueous solution, filtering, water solution precipitation, solid-liquid separation, washing to remove the forming paper, water pine paper and TiO2, and obtaining diacetate cellulose with quality meeting the use requirements of downstream products. The present application can completely remove the residual forming paper and water pine paper and TiO2 in the prior art. The quality of cellulose acetate before and after regeneration is compared, and it is found that AV and IV fluctuate slightly, which does not affect the use, but the PV value of regenerated cellulose acetate increases greatly, which shows that filtering and washing can significantly remove residual impurities, the quality of regenerated cellulose acetate is significantly improved, and the commercial use requirements are met; the present application has a very positive effect on reducing production cost and environmental protection.