广东费飘职业故本学院 Guangdong Inatitute of Textile Technology Production a Similar to cellulose rayon for the first a few steps a Cellulose mixed with acetic acid and acetic anhydride a sulfuric acid catalyst is added d acetylation takes place a degradation of the polymer ma king dP low a triacetate is made first a when water added, some acetylProduction  Similar to cellulose rayon for the first a few steps  Cellulose mixed with acetic acid and acetic anhydride, a sulfuric acid catalyst is added  acetylation takes place  degradation of the polymer making DP low  triacetate is made first  when water added, some acetyl groups are removed