Flame-resistant and antibacterial polyester staple fiber and production technique thereof

Abstract

The invention discloses a flame-resistant and antibacterial polyester staple fiber and a production technique thereof; the flame-resistant and antibacterial polyester staple fiber is prepared by soaking terylen protofilament, spraying flame-resistant and antibacterial aqueous emulsion in multiple angles and drying; the flame-resistant and antibacterial aqueous emulsion is prepared by mixing a Galston Lurol PS-9985 oiling agent, a Galston Lurol AM-7 antibacterial agent and tri-distilled water. The production technique comprises the steps of: utilizing regenerative PET material as raw material;sequentially performing the following procedures to obtain a finished product: pre-treating, drum drying, smelting and spinning, cooling forming, winding, stretching, curling, oiling, cutting and heat setting, wherein the drum drying duration is 9.5-10.5 h, the temperatures of the threaded rod of a threaded rod extruding machine and the box body of a spinning box are 265-275 DEG C; the total stretching fold is 3.5-4.0 folds, the heat setting temperature is 140-150 DEG C, and the heat setting duration is 8-12 min. The production technique of the invention has the advantages of saving the cost,protecting the environment, simultaneously performing the flame-resistant and antibacterial treatment, and simplifying the steps, and the prepared finished product not only has excellent flame-resistant and antibacterial performance, but also has a long effect.

Description

technical field [0001] The invention relates to a polyester fiber and a production process thereof, in particular to a flame-retardant and antibacterial polyester staple fiber and a production process thereof. Background technique [0002] Polyester (that is, polyester fiber) is an important variety of synthetic fibers, and it is an important textile raw material. However, conventional polyester is flammable, which limits the application fields of polyester fiber and its fabrics. Generally, the raw material is sliced, melted and mixed with a flame retardant, and then spun into a flame-retardant polyester fiber, which endows the polyester fiber with a certain resistance. combustion function. [0003] Most of the current flame-retardant polyester fibers are added with low-molecular flame retardants. The low-molecular flame retardants have a great influence on the physical properties of finished fibers (such as strength and other important parameters), and cannot fully reflect...

AI Technical Summary

Problems solved by technology

[0005] In the current production process, the addition of flame retardants and antibacterial agents is generally carried out separately. The steps are relatively cumbersome, and raw materials are mostly processed into slices and then spun into polyester fibers. The cost of raw materials is high, and it is a waste of resources and is not conducive to environmental protection; Using waste PET (polyethylene terephthalate) bottle flakes, sheets, films and recycled PET materials such as polyester blocks and waste silk produced in the production process of polyester materials as raw materials can reduce costs , is conducive to environmental protection and realizes resource reuse

[0006] However, the quality of recycled PET materials is uneven, and its intrinsic viscosity and melting point are very different from those of polyester chips processed from raw materials. It also contains more non-polyester plastic impurities and moisture, which seriously affects the spinning quality. influences

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