ANALYSIS METHOD FOR REMAINING SUBSTANCE OF SPINNING PACK FILTER OF POLYESTER FIBER MANUFACTURING PROCESS

摘要

A kind of method, it is arranged to the reason of obviously checking the obstruction of spin pack filter for analyzing the substance on one of the manufacturing process spin pack filter for staying in a polyester fiber, to minimize the replacement cost of spin pack filter and the production loss of polyester fiber. One manufacturing process of one polyester fiber includes a raw material input process, an esterification reaction process, a polycondensation process, a fiber spinning process, uses a spin pack filter and a polyester slice process. When polymers passes through, polycondensation process is spun during fiber spinning process, and spin pack filter separately and is after the replacement cut, if a pressure of spin pack filter is on the normal pressure by 40-50 kilograms/cm^2. The mixed solvent that spin pack filter is dissolved in a normal temperature is cut down, an extraction liquid is extracted from the spin pack filter dissolved. It is performed on extracting liquid by the filtering of a membrane filter. Residual chemical component after filtration is analyzed. In addition, mixed solvent is selected from one group comprising a hexafluoroisopropanol, a trifluoroacetic acid and chloroform.