CN101182659B

CN101182659B - Drafting false twisting method of PTT/PET composite full drafting low-elastic network silk

Info

Publication number: CN101182659B
Application number: CN2006101560788A
Authority: CN
Inventors: 陈林; 费祥; 蒋守朋; 王成
Original assignee: JIANGSU ZHENYANG CO Ltd
Current assignee: JIANGSU ZHENYANG CO Ltd
Priority date: 2006-12-30
Filing date: 2006-12-30
Publication date: 2010-10-06
Anticipated expiration: 2026-12-30
Also published as: CN101182659A

Abstract

The invention relates to a draft false twisting method of a PTT and PET composite full-drafting low-elasticity interlaced yarn. The invention is characterized in that: step 1: dry PTT and PET slices are spun compositely; step 2 of winding: the PTT and PET composite yarn is first wound by GR1 with the rolling speed of 3000-5000m/min and then wound by GR2 with the rolling speed of 3200- 5200m/min, the winding speed of a wound yarn ingot becomes 2900-4800m/min after passing a friction roller, and then is wound into a POY yarn ingot; step 3 of elasticity adding: after the POY yarn ingot is fed into a first roller W1, the ingot passes a porcelain yarn guide part, a hot box, a second porcelain yarn guide part, a false twisting machine, a second roller W2, an interlacing machine, a third roller W3, an oil wheel, and a winding roller to become a wound DTY yarn ingot. All performance indexes of the invention can meet the production requirement of machine-woven and knit fabrics.

Description

The drafting false twisting method of PTT/PET composite full drafting low elastic interlaced yarn

Technical field

The present invention relates to the drafting false twisting method of drawing-off low elastic interlaced yarn of the compound POY pre-oriented yarn of back manufacturing procedure, especially PTT/PET of the compound pre-oriented yarn of a kind of PTT/PET.

Background technology

PTT is a polytrimethylene terephthalate, it is a kind of novel macromolecular material, it has overcome the rigidity of PET and the flexibility of PBT fiber, every performance indications of producing the POY silk with PTT and PET polyester composite spinning are different from general compound long and slender dimension, especially intensity decreases, but the drawing-off scope is very little, and the processing of road, back has been proposed very high requirement.At present, market, home and abroad is not also put down in writing and report about the document of this respect.

Summary of the invention

Purpose of the present invention is low for the intensity that exists in the drafting false twisting process that solves the compound pre-oriented yarn POY of PTT/PET, can spin the problem of narrow range, processing characteristics behind raising and the stable PTT/PET composite fibre makes every performance indications of the compound low-stretch yarn of PTT/PET satisfy knitting and requirement woven fabric.

For achieving the above object, the technical solution adopted in the present invention is taked following steps:

First step spinning: PTT, PET do section and lean on from reentering corresponding charging aperture on the two screw rods extruder from drying tower respectively, because the rotation of screw rod, section travels forward along screw channel, in the screw sleeve periphery heating element heater is installed; PTT does the heating-up temperature of section place screw extruder from feed zone to discharging section in 200-300 ℃ of scope, and the heating-up temperature from feed zone to discharging section raises piecemeal; PET does the heating-up temperature of section place screw extruder from feed zone to discharging section in 250-320 ℃ of scope, and also is that heating-up temperature from feed zone to discharging section raises piecemeal; By sleeve heat is passed to section, the section melted by heat and the machine that is extruded compress to be extruded, formation has PTT, the PET melt of certain pressure, enter two filters respectively, enter into PTT spinning manifold, PET spinning manifold after the filtration respectively accordingly, the PTT spin manifold temperature is 200-300 ℃, and the PET spin manifold temperature is 250-320 ℃, and public casing is 250-320 ℃; Under the accurate measurement of the measuring pump in casing, PTT, PET enter into filament spinning component and are combined into the cross section that shape is a core-skin, be evenly distributed to each spinneret orifice of spinnerets then, from spinneret orifice, spue and form the melt thread, side under spinneret orifice is provided with the cooling quench chamber, and cooling air is 10-50 ℃, and blast is stabilized in 450-650Pa, wind speed is between the 0.1-1.0m/s, and lateral blowing humidity is 60-95%; The air cooling that is cooled of melt thread is frozen into strand, and in cooling, because the stretching action of spinning head, the melt thread is progressively refinement before not solidifying, and enters the coiling operation after last oil nozzle oils;

Second step reeled: from PTT, the PET compound silk that comes out after last oil nozzle oils, be 3000-5000m/min through its roller speed of GR1 roller earlier, be 3200-5200m/min through its roller speed of GR2 roller again, the winding speed that the undrawn yarn ingot is joined behind friction roller (15) is that 2900-4800m/min is wound into into POY silk ingot;

The 3rd step added bullet: after POY silk ingot feeds the first roller W1, split through the DTY silk of seal wire porcelain spare → hot case → another seal wire porcelain spare → false twister → second roller W2 → Network device → the 3rd roller W3 → oil tanker → take up roll → batch;

It is above-mentioned after POY silk ingot feeds the first roller W1, being subjected to the second roller W2 is the stretching of 400-750m/min, W1/W2=1.45-1.75, be subjected to false twister simultaneously and pass the twisting active force of coming, the ratio of PU dish linear velocity D on strand speed of service Y and the false twister is promptly: D/Y=1.45-2.5, it is 120-180 ℃ heating that strand enters hot case heating-up temperature, strand is at tensile force, stretcher strain takes place down in the effect of twisting twisting resistance and heat, HEAT SETTING changes, strand goes out the second roller W2 and enters Network device and blown network, and the DTY silk through the 3rd roller W3 → oil tanker → take up roll → batch splits again; Strand come out from oil tanker to take up roll rolling tension force be 25-40CN.

Beneficial effect of the present invention:

Technological parameter energy stabilized product quality of the present invention, every performance indications of product can satisfy woven and production requirement knit fabric, the finished product of making has excellent especially flexibility and elastic recovery, good anti-crease property and DIMENSIONAL STABILITY, easy dyeing, bulkiness, resistance tocrocking, advantage such as ABRASION RESISTANCE and antistatic behaviour, be able to take the gamma ray sterilization, and improved hydrolytic stability, thereby can provide high-grade dress ornament of exploitation and functional fabric, comfortable and easy to wear by the clothes that it is made, soft, easily wash, fast doing, non-ironing, meet people's allegro requirement of living.Simultaneously, the tensile elasticity and recovery characteristic of ptt fiber, resistance to soiling and polyamide fibre are suitable, and bulkiness and elasticity, low static, ABRASION RESISTANCE and low water imbibition all be better than polyamide fibre, and suitable processing carpet becomes the most competitive material in the pavement Application Areas.

Description of drawings:

Fig. 1 is a PTT/PET composite spinning coiling flow chart;

Fig. 2 adds the Silk Road schematic diagram of bullet for the drawing-off of PTT/PET compound silk;

Fig. 3 is the cross-sectional structure figure of PTT/PET compound silk fiber.

The specific embodiment:

Describe the present invention in detail below in conjunction with accompanying drawing:

As shown in the figure, first step spinning: PTT, PET do section and lean on from reentering

corresponding charging aperture

1,4 on the two screw rods extruder 2,5 from drying tower respectively, because the rotation of screw rod, section travels forward along screw channel, in the screw sleeve periphery heating element heater is installed; PTT does the heating-up temperature of section place screw extruder 2 from feed zone to discharging section: 210 ℃ → 230 ℃ → 240 ℃ → 250 ℃ → 250 ℃; PET does the heating-up temperature of section place screw extruder 5 from feed zone to discharging section: 250 ℃ → 260 ℃ → 270 ℃ → 280 ℃ → 280 ℃; By sleeve heat is passed to section, the section melted by heat and the machine that is extruded compress to be extruded, formation has PTT, the PET melt of certain pressure, enter filter 3,6 respectively, enter into PTT spinning manifold 7, PET spinning manifold 8 after the filtration respectively accordingly, the PTT spin manifold temperature is 260 ℃, and the PET spin manifold temperature is 290 ℃, and public casing is 280 ℃; Under the accurate measurement of the measuring pump in casing, PTT, PET enter into filament spinning component 10 and are combined into the cross section that shape is a core-skin (as shown in Figure 3), filament spinning component 10 is selected the equipment of U.S. HILLS company for use, be evenly distributed to each spinneret orifice of spinnerets then, spuing from spinneret orifice forms the melt thread, and the side under spinneret orifice is provided with cooling quench chamber 11, cooling air is 18 ℃, blast is stabilized in 500Pa, and wind speed is 0.5m/s, and lateral blowing humidity is 70%; The air cooling that is cooled of melt thread is frozen into strand, and in cooling, because the stretching action of spinning head, the melt thread is progressively refinement before not solidifying, and after last oil nozzle 12 oils, enters the coiling operation;

Second step reeled: from PTT, the PET compound silk that comes out after last oil nozzle 12 oils, be 3800m/min through its roller speed of GR1 roller earlier, be 3900m/min through its roller speed of GR2 roller again, the winding speed that undrawn yarn ingot 16 is joined behind friction roller 15 is that 3850m/min is wound into into POY silk ingot;

The 3rd step added bullet: consider that PTT polyester fiber elastic returning is big, and the drawing-off narrow range, intensity is low.In lectotype selection, select German Barmag FK6V-1000 type elasticizer for use, false twister 19 adopts the PU polyurethane disc of 52.5 * 12 * 9mm of Britain Fiberguide company production, processes with the 1-5-1 installation method, the seal wire porcelain spare 17 that adopts the shallow company of Japanese soup to produce.

As shown in Figure 2, behind the POY silk ingot 16 feeding first roller W1 16, split 25 through the DTY silk of seal wire porcelain spare 17 → hot case 18 → another seal wire porcelain spare 17 → false twister 19 → the second roller W2 20 → Network device 21 → the 3rd roller W3 22 → oil tanker 23 → take up roll 24 → batch;

Above-mentioned behind the POY silk ingot 16 feedings first roller W116, be subjected to the stretching of the second roller W2,20 450m/min, W1/W2=1.5, be subjected to false twister 19 simultaneously and pass the twisting active force of coming, the ratio of PU dish linear velocity D on strand speed of service Y and the false twister 19 is promptly: D/Y=1.8, it is 160 ℃ heating that strand enters hot case 18 heating-up temperatures, strand is at tensile force, stretcher strain takes place down in the effect of twisting twisting resistance and heat, HEAT SETTING changes, strand goes out the second roller W2 20 and enters Network device 21 and blown network, and the DTY silk through the 3rd roller W3 22 → oil tanker 23 → take up roll 24 → batch splits 25 again; Strand come out from oil tanker 23 to take up roll 24 rolling tension force be 35CN.

Claims

1. the drafting false twisting method of a PTT/PET composite full drafting low elastic interlaced yarn is characterized in that taking following steps:

First step spinning: PTT, PET do section and go up corresponding charging aperture (1,4) from drying tower by reentering two screw rods extruder (2,5) certainly respectively, because the rotation of screw rod, section travels forward along screw channel, in the screw sleeve periphery heating element heater is installed; PTT does the heating-up temperature of section place screw extruder (2) from feed zone to discharging section in 200-300 ℃ of scope, and the heating-up temperature from feed zone to discharging section raises piecemeal; PET does the heating-up temperature of section place screw extruder (5) from feed zone to discharging section in 250-320 ℃ of scope, and also is that heating-up temperature from feed zone to discharging section raises piecemeal; By sleeve heat is passed to section, the section melted by heat and the machine that is extruded compress to be extruded, formation has PTT, the PET melt of certain pressure, enter filter (3,6) respectively, enter into PTT spinning manifold (7), PET spinning manifold (8) after the filtration respectively accordingly, the PTT spin manifold temperature is 200-300 ℃, and the PET spin manifold temperature is 250-320 ℃, and public casing is 250-320 ℃; Under the accurate measurement of the measuring pump in casing, PTT, PET enter into filament spinning component (10) and are combined into the cross section that shape is a core-skin, be evenly distributed to each spinneret orifice of spinnerets then, from spinneret orifice, spue and form the melt thread, side under spinneret orifice is provided with cooling quench chamber (11), and cooling air is 10-50 ℃, and blast is stabilized in 450-650Pa, wind speed is between the 0.1-1.0m/s, and lateral blowing humidity is 60-95%; The air cooling that is cooled of melt thread is frozen into strand, and in cooling, because the stretching action of spinning head, the melt thread is progressively refinement before not solidifying, and after last oil nozzle (12) oils, enters the coiling operation;

Second step reeled: from PTT, the PET compound silk that comes out after last oil nozzle (12) oils, be 3000-5000m/min through its roller speed of GR1 roller earlier, be 3200-5200m/min through its roller speed of GR2 roller again, the winding speed that undrawn yarn ingot (16) is joined behind friction roller (15) is that 2900-4800m/min is wound into POY silk ingot;

The 3rd step added bullet: behind POY silk ingot (16) the feeding first roller W1 (16), through the DTY silk of seal wire porcelain spare (17) → hot case (18) → another seal wire porcelain spare (17) → false twister (19) → second roller W2 (20) → Network device (21) → the 3rd roller W3 (22) → oil tanker (23) → take up roll (24) → batch split (25);

Above-mentioned behind POY silk ingot (16) the feeding first roller W1 (16), be subjected to the stretching of second roller W2 (20) 400-750m/min, W1/W2=1.45-1.75, be subjected to false twister (19) simultaneously and pass the twisting active force of coming, the ratio of PU on strand speed of service Y and the false twister (19) dish linear velocity D is promptly: D/Y=1.45-2.5, it is 120-180 ℃ heating that strand enters hot case (18) heating-up temperature, strand is at tensile force, stretcher strain takes place down in the effect of twisting twisting resistance and heat, HEAT SETTING changes, strand goes out the second roller W2 (20) and enters Network device (21) and blown network, again through the DTY silk of the 3rd roller W3 (22) → oil tanker (23) → take up roll (24) → batch split (25); Strand come out from oil tanker (23) to take up roll (24) rolling tension force be 25-40CN.