REGENERATED CELLULOSE FIBER CAPABLE OF BEING DYED WITH DISPERSE DYESTUFF AND PRODUCTION OF THE SAME

摘要

PURPOSE: To obtain the regenerated cellulose fiber excellent in color fastness for various dyestuffs without much lowering the fiber strength and capable of being dyed with disperse dyestuffs in good productivity at a low cost. CONSTITUTION: A viscose rayon containing 1-40% of fine polymer particles having an average particle diameter of 0.05-5μm and capable of being dyed with disperse dyestuffs, has a capacity to attach >=0.1mg of the disperse dyestuff per g of the fiber, a wet strength of >=0.4g/cl and a washing fastness of the three grade or higher.