Preparation method of calamine cellulose fiber

Abstract

The invention relates to a calamine cellulose fiber, which is characterized in that the formed calamine cellulose fiber is obtained through the following processes: preparing calamine slurry, preparing a spinning solution, preparing a denatured spinning solution and spinning; the weight percentage of the calamine in the finished product calamine cellulose fiber is 5% to 25%; the yarn is dissolvedby adopting ionic liquid so as to increase the dissolubility of the yarn and enhance the production efficiency; a large amount of hydrogen sulfide and carbon disulfide can be avoided from generating in the yellowing process when the traditional viscose process is adopted; the environment pollution is reduced; the damage on the health of operation personnel is lightened; the ionic liquid is adopted to serve as a coagulating bath solution so as to guarantee that the effective components in the calamine are not damaged; the functional index of the finished product fiber is enhanced; the wet-dry strength and the dry extension are obviously enhanced; and the bleaching process in the course of preparing the conventional spinning solution fiber in the postprocessing process is omitted so as to avoid the damage of bleaching substances on the calamine and antibiosis active substances in the calamine.

Description

technical field [0001] The invention relates to a cellulose fiber and a preparation method thereof, in particular to a calamine cellulose fiber and a preparation method thereof. Background technique [0002] Cellulose is a renewable resource that is ubiquitous in nature. It contains a lot of cellulose in trees, cotton, rice stalks, corn and other plants and some bacterial secretions, and has become a viable alternative to petroleum cracking fiber products. recycled resources. The main components of calamine are zinc carbonate, hydrated zinc carbonate, and zinc oxide. It can be used for the treatment of various contact dermatitis and other skin diseases, especially for ulcers, pus dripping, eczema, eczema, and itchy skin. good curative effect. The main components of calamine are zinc carbonate, hydrous zinc carbonate, and zinc oxide. It can be used not only for the treatment of various contact dermatitis and other skin diseases, but also for ulcers, dripping pus, eczema, an...

AI Technical Summary

Problems solved by technology

[0003] At present, the disclosed patents and documents all produce viscose fiber by directly adding micron-sized calamine powder into the viscose liquid. The bath is generally a mixture of sulfuric acid, sodium sulfate, and zinc sulfate, because the active ingredients of calamine are zinc carbonate and its oxides, and zinc carbonate and oxides react with sulfuric acid to eventually form zinc sulfate, which causes the loss of active ingredients of calamine , so as to reduce the content of calamine in the finished fiber. In addition, the operator will work in an acidic environment for a long time, which will cause harm to the body; It affects the content of zinc sulfate in the acid bath. In the actual forming reaction, how much calamine produces zinc sulfate is unknown and cannot be quantified. It affects the deployment of zinc sulfate in the acid bath. will pollute the environment

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