Process of wet spinning is used for polymers that need to be dissolved in a solvent to be spun. The spinneret is submerged in a chemical bath that causes the fiber to precipitate, and then solidify, as it emerges. The process gets its name from this "wet" bath. Acrylic, rayon, aramid, modacrylic, and spandex are produced via this process.[
A variant of wet spinning is dry jet-wet spinning, where the solution is extruded into air and drawn, and then submerged into a liquid bath. This method is used in Lyocell spinning of dissolved cellulose.
喷丝头材质 Spinneret Material
●钽 Ta
●不锈钢 Stainless Steel
●金铂合金 Compound of gold and platinum: Au 70% Pt 30%; Au 60% Pt40%; Au 50% Pt 50%
●金铂铑合金 Compound of gold, platinum and Rhodium: Au 49.5% Pt 49.5% Rh 1%
The Sphere-shaped spinnerets have the advantages of new structure that holes scatter on the sphere surface with certain curvature radius, in order to radiate fibers, which leads to better condensation. It is used for producing PAN, Vinylon, viscose fiber with high speed and productivity.
