Polyester pre-oriented filament and its manufacturing method
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A pre-orientation and filament technology, applied in the field of synthetic fibers, can solve problems such as poor UV resistance
Active Publication Date: 2018-03-27
浙江恒百华化纤有限公司
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[0003] The existing Chinese patent with authorized notification number CN1321230C discloses a two-step preparation process of high modulus and low shrinkage polyester industrial yarn and its polyester industrial yarn. Although the prepared polyester industrial yarn has the performance of high modulus and low shrinkage rate , but its UV resistance is not good
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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Embodiment 1
[0021] Step 1) slice fiber-grade PET polyester sheet 90Kg (polyethylene terephthalate sheet, the brand is German Gail), and the thickness of the slice is 0.5mm; the PET polyester sheet is dried for the first time, and dried The temperature is 160°C, and the drying time is 30 minutes; the PET polyester chips are dried for the second time, the drying temperature is 185°C, and the drying time is 4 hours, so that the moisture content of the PET polyester chips is ≤ 25ppm; the PET polyester chips after drying And 0.2Kg of cetyltrimethylsilver ammonium bromide, 1.1Kg of 1,1'-thiobis (2-naphthol), 0.7Kg of 2-hydroxybenzophenone, 0.5Kg of divalent The nickel EDTA complex is fully mixed in a screw extruder, melted at 280°C, extruded into filaments, and cooled, wherein the cooling air temperature is 20°C, the relative humidity is 75%, and the wind speed is 0.5m / s.
[0022] Step 2) The PET polyester yarn obtained in step 1) is sequentially collected by the first roller, heated by a hot b...
Embodiment 2
[0024] Others are the same as in Example 1, except that the drying temperature for the first drying of PET polyester chips is 180°C, the drying time for the second drying is 6 hours, and the melting temperature is 290°C; the wind temperature during cooling is 18°C , the relative humidity is 70%, the wind speed is 0.6m / s; the hot box is set at 180°C; the raw materials include: fiber-grade PET polyester board 90Kg, hexadecyltrimethylsilver ammonium bromide 0.4Kg, 1 , 1'-thiobis(2-naphthol) 1.3Kg, 2-hydroxybenzophenone 1.2Kg, divalent nickel EDTA complex 0.1Kg, chemical fiber oil 3.2Kg.
Embodiment 3
[0026] Others are the same as in Example 1, except that the drying temperature for the first drying of PET polyester chips is 170°C, the drying time for the second drying is 5 hours, and the melting temperature is 285°C; the wind temperature during cooling is 22°C , The relative humidity is 80%, the wind speed is 0.4m / s; the hot box is set at 177°C; the raw materials include: fiber grade PET polyester board 95Kg, hexadecyltrimethylsilver ammonium bromide (antibacterial agent) 0.5Kg, 1,1'-thiobis(2-naphthol) (antioxidant) 1Kg, 2-hydroxybenzophenone (ultraviolet light absorber) 1Kg, divalent nickel EDTA complex (quencher) 0.3Kg, chemical fiber oil 3Kg.
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Abstract
The invention discloses pre-orientated polyester filament yarn and a manufacturing method thereof. The manufacturing method comprises the following steps that 1, a fiber-grade PET board is cut into chips, and the PET chips are dried for twice to enable the moisture content of the PET chips to be smaller than or equal to 25 ppm; dried PET chips are fused, hexadecyl trimethyl silver ammonium bromide, 1,1'-sulfo-bis(2-naphthol), 2-hydroxybenzophenone and a nickelous EDTA complex are added after the dried PET chips are completely fused, and after the materials are evenly mixed, filamentation is performed through extrusion forming and cooling is performed; 2, PET yarn obtained in the step 1 is sequentially processed through collecting through a first roller, heating through an upper heating box, twisting through a heater, drawing through a second roller, sizing through a lower heating box, further sizing through a third roller, oiling through an oiling device and forming through a winding roll to obtain the pre-orientated polyester filament yarn, wherein a chemical fiber oiling agent is contained in the oiling device, and the production speed of the pre-orientated polyester filament yarn is controlled at 3300 rad / min. The pre-orientated polyester filament yarn has the better anti-ultraviolet property and the higher breaking strength.
Description
technical field [0001] The invention relates to the technical field of synthetic fibers, more specifically, it relates to a polyester pre-oriented filament and a manufacturing method thereof. Background technique [0002] With the continuous improvement of the material and cultural level of society, people have more and more requirements for clothing fabrics and decorative materials. Natural fiber and cellulose regenerated fiber can no longer meet people's increasing demand in terms of output and quality. As a result, synthetic fiber technology has been extensively researched and developed, and chemical fibers have been modified to endow them with more functions and gradually replace natural fibers. As polyester is the largest synthetic fiber, the development of multifunctional new products that meet consumer needs has attracted people's attention. [0003] The existing Chinese patent with authorized notification number CN1321230C discloses a two-step preparation process o...
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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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