Regenerated nylon 6 fiber manufacturing process

Abstract

The invention relates to a fiber manufacturing process, in particular to a regenerated nylon 6 fiber manufacturing process. The regenerated nylon 6 fiber manufacturing process comprises the following steps of 1, crushing nylon 6 waste; 2, adding a catalyst and a mixed solvent of ethanol and dichloroethane; 3, filtering undissolved solids in the solution after the dissolution is finished; 4, cooling and crystallizing the nylon 6 in the filtered solution at a certain temperature to form a nylon 6 solid; 5, drying the nylon 6 solid in a drying oven at 100-120 DEG C for 3-4 hours until the water content is less than 5%; 6, adding an additive to obtain a mixture; and 7, performing melt spinning to obtain the regenerated nylon 6 fiber. The regenerated nylon 6 fiber is prepared from the nylon 6 waste material, so that the nylon 6 waste material is recycled, and resource waste and environmental pollution are fully avoided.

Description

technical field [0001] The invention relates to a fiber manufacturing process, in particular to a regenerated nylon 6 fiber manufacturing process. Background technique [0002] Nylon 6 will inevitably produce a large amount of leftovers and wastes in the production process. These leftovers and wastes contain many additives that are difficult to separate. At present, these wastes are generally used as fuel, resulting in waste of resources and environmental pollution. Therefore need to provide a kind of method that can regenerate nylon 6. [0003] Many recycling methods for nylon 6 waste are also given in the prior art, but since nylon 6 is difficult to dissolve in commonly used solutions, it is difficult to purify nylon 6 from waste. Contents of the invention [0004] Aiming at the problems in the prior art about the manufacture of regenerated nylon 6 fibers, the present invention provides a regenerated nylon 6 fiber manufacturing process. [0005] In order to solve the a...

AI Technical Summary

Problems solved by technology

[0002] Nylon 6 will inevitably produce a large amount of leftovers and wastes in the production process. These leftovers and wastes contain many additives that are difficult to separate. At present, these wastes are generally used as fuel, resulting in waste of resources and environmental pollution. Thereby need to provide a kind of method that can regenerate nylon 6

[0003] Many recycling methods for nylon 6 waste are also given in the prior art, but because nylon 6 is difficult to dissolve in commonly used solutions, it is difficult to purify nylon 6 from waste.