Production process for bamboo charcoal polyester staple fibre

Abstract

The invention discloses a production process for a bamboo charcoal polyester staple fibre. In the production process, regenerative PET (Polyethylene Terephthalate) material is used as the material, and the finished product is acquired by pre-treating, rotary drum drying, melt spinning, cooling and forming, winding, drafting, curling, oil applying, thermosetting and cutting-off in sequence, wherein the rotary drum drying comprises the steps of firstly drying the regenerative PET material for 5.5h-6.5h and then adding bamboo charcoal master batches with the final mass fraction of 6%-8% and including bamboo charcoal with the mass fraction of 22%-27%; and the total drying time is 9.5h-10.5h; both the screw rod and the spinning beam of a screw extruder in the melt spinning step are at the temperature from 278 DEG C to 282 DEG C; cooling forming is realized through circular air blow, the temperature of the circular air is 22 DEG C to 26 DEG C, and the air velocity of the circular air is 4.0m/s-5.0m/s; the total draft multiple is 3.1-3.3 times; and the thermosetting temperature is 162 DEG C to 168 DEG C, and the thermosetting time is 13 minutes to 17 minutes. The production process can save the cost and is helpful for environmental protection; the produced product has a better smooth and comfortable hand feeling and moisture-absorption air permeability than those of a normal polyester staple fibre.

Description

technical field [0001] The invention relates to a production process of polyester staple fiber, in particular to a production process of bamboo charcoal polyester staple fiber. Background technique [0002] Polyester (that is, polyester fiber) is an important variety of synthetic fibers, and it is an important textile raw material. Synthetic fibers have recently been transformed from applicable to functional, and various functional processing needs to be performed on them during production. [0003] Among them, adding bamboo charcoal masterbatch to polyester can endow polyester fabric with health care, moisture absorption and perspiration, antibacterial and deodorant, adsorption, heat storage and warmth retention, antibacterial and antibacterial properties, humidity control and breathability, anti-ultraviolet and excellent anti-pilling, Functionality such as pilling effect, better smooth feel than conventional polyester. [0004] Moreover, due to the black color of the bam...

AI Technical Summary

Problems solved by technology

[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

[0007] Moreover, the addition of bamboo charcoal masterbatch during spinning will change the viscosity of the melt in the spinning assembly and cause friction to the equipment. The conventional recycled PET production process is limited by conditions, and the bamboo charcoal polyester staple fiber produced cannot achieve the desired quality.