Preparation method of cellulose/calamine composite fiber

Abstract

The invention relates to a preparation method of cellulose / calamine composite fiber. The preparation method comprises the following steps that a cellulose solvent is used for dissolving cellulose ester, and a carrier solution of calamine powder is prepared; the calamine powder and the carrier solution are mixed through a high shearing effect provided by stirring equipment to prepare calamine mother liquid; the calamine mother liquid is injected into cellulose spinning liquid in an on-line adding mode; the spinning liquid is squeezed out, solidified, formed and drafted to prepare cellulose / calamine composite fiber. By aiming at the problem that the calamine powder is difficult to be uniformly mixed with high-viscosity spinning liquid, the calamine mother liquid is injected into the spinning liquid; further, the cellulose / calamine composite fiber is prepared in a spinning formation mode. A used mother liquid carrier is solidified and formed along with the fiber; no additional auxiliary agents enter a solvent and coagulating bath system. The formation method is simple, flexible and efficient; the production of the cellulose / calamine composite fiber can be realized on the basis of an ordinary production line.

Description

technical field [0001] The invention relates to the field of regenerated fibers, in particular to a preparation method of cellulose / calamine composite fibers. Background technique [0002] Cellulose fibers such as cotton, viscose fiber, and lyocell fiber have excellent skin-friendly properties and are widely used in intimate clothing. In order to increase the function of cellulose fiber, patent ZL201010511031.5 (calamine cellulose fiber and its preparation method) proposes a preparation method of functional cellulose fiber, the specific method is to mix calamine slurry with cellulose / ion The liquid spinning solution is mixed, and the cellulose / calamine composite fiber is prepared by wet spinning. Because calamine has a therapeutic effect on various contact dermatitis, functional fibers can prevent the occurrence of skin diseases, and can also relieve symptoms of acute itching skin diseases such as urticaria and prickly heat. [0003] When mixing calamine powder such as cal...

AI Technical Summary

Problems solved by technology

Mixing suspensions, emulsions and cellulose spinning solutions can improve the dispersion uniformity of functional additives, but additives such as surfactants will enter the coagulation bath, affecting the normal recovery of solvents and coagulants, increasing the cost of recovery

The additives remaining in the fiber will also affect the physical and chemical properties of the fiber, and there is also the possibility of additive leakage during use