How is the natural glossiness of cupro-ammonia fabric surface controlled and adjusted during the production process?

1. Raw material selection: laying the foundation for gloss
All beauty begins at the source. The production of copper ammonia fiber fabric first depends on the selection of high-quality raw materials. Usually, natural cellulose raw materials such as high-quality cotton linters are used as basic materials, and these raw materials themselves have a certain gloss potential. Through strict screening and proportioning, it is ensured that each fiber can contribute to the gloss of the final product.

2. Spinning solution preparation
In the production process of copper ammonia fiber fabric, the preparation of spinning solution is a crucial link. This link requires a combination of precise chemical formula and advanced process technology. The selected raw materials are dissolved in a concentrated ammonia solution of copper hydroxide or alkaline copper salt, and a uniform spinning solution is formed after a series of complex chemical reactions and physical processes. The quality of the spinning solution directly determines the gloss and performance of the subsequent fiber. Therefore, the control of each parameter must be accurate to millimeters.

3. Fiber forming and post-processing: shaping and enhancing gloss
After filtering, degassing and other processes, the spinning solution is sprayed into the coagulation bath. In the coagulation bath, the cellulose molecules in the spinning solution undergo chemical changes to form primary fibers with a certain strength. At this point, the glossiness of the fiber surface begins to appear. However, the real glossiness improvement still depends on a series of subsequent post-processing processes.

During the post-processing process, the cuprammonia fiber will be washed and sorted many times to remove impurities and residues on the surface. At the same time, through a combination of specific chemical treatment and mechanical treatment, the microstructure of the fiber surface is further adjusted so that it can better reflect light and present a softer and more advanced gloss. In this process, the processing of every detail is crucial, which determines the uniformity, durability and overall visual effect of the glossiness of the final product.