CN102433611B - Technology for processing layered false twist high-elasticity moisture absorption and sweat releasing fibers - Google Patents
Technology for processing layered false twist high-elasticity moisture absorption and sweat releasing fibers Download PDFInfo
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Abstract
The invention relates to a technology for processing layered false twist high-elasticity moisture absorption and sweat releasing fibers. The technology for processing the layered false twist high-elasticity moisture absorption and sweat releasing fibers is formed by special design of a series of technical steps of selecting fiber raw material components, pre-treating the components, preparing a polymer melt, spinning and forming the layered false twist high-elasticity moisture absorption and sweat releasing fibers and special optimization of related parameters, so that the layered false twist fibers achieves excellent effects on high elasticity, comfortable performance of moisture absorption and sweat release and appearance.
Description
Technical field
The present invention relates to the processing technology of the high-elastic hygroscopic fibre of a kind of layered false twist.
Background technology
Recent two decades comes, and uses the synthetic fiber with hygroscopicity, water imbibition, wet putting, poisture-penetrability etc., can alleviate dress material because the unplessantness displeasure that sweat causes, the comfortableness of dress material dress that improves.The dress materials such as underwear, leg, underpants, sweat shirt directly contact skin or near skin when wearing, can adopt known technology, give cloth and silk and can be discharged to sweat rapidly the function of clothes outside, also do not feel sultry even produce to perspire, and have the dress material of the refrigerant sense of not being clamminess.
Give the trial of hygroscopicity, water imbibition, wet putting, poisture-penetrability etc. to synthetic fiber, the research that relates to polyamide and polyesters synthetic fiber is a lot.For example, examined patent publication 60-457 communique proposes the compound silk of the low synthetic fiber of bibulous silk and hygroscopicity.Real public clear 60-40612 communique and JP 60-215835 communique propose to use fabric or the fabric of aforesaid compound silk.Relevant polyester fiber improves hygroscopic Unexamined Patent 2-99612 communique, Unexamined Patent 4-361616 communique, Unexamined Patent 4-361617 communique, Unexamined Patent 9-41204 communique, Unexamined Patent 9-41221 communique etc., proposition is take hygroscopicity resin as core, resin low or almost no hygroscopicity is configured in appearance and carries out the sheath core type composite fiber that composite spinning makes hygroscopicity, improves hygroscopic synthetic fiber cloth and silk with this composite fibre.The prior art that discloses previously proposes, ratio by the hygroscopicity resin core of the low sheath section polyester coating of hygroscopicity is high, during moisture absorption or when dyeing core resin by the water swelling after, press wide sheath section, fiber is cracked, fibre structure destroys, after the damage, cause the reduction of the physical property such as intensity in the moistening processing of dyeing etc. or when wearing.Aforesaid Unexamined Patent 9-41204 communique, Unexamined Patent 9-41221 communique propose to be used for sheath section originally having some hygroscopic polyamide, the fibre section shape is made odd-shaped cross section, from skin surface guiding cloth and silk side, absorb the moisture of sweat etc. by the sweat of capillarity when wear with the water-absorbing resins of core.Designing in addition the sheath core type composite fiber promotes toward the moisture releasing of dress material outside.Yet owing to the swelling of core resin, causing that dyeing adds the strength decreased in man-hour in this design.Found out that by above reason adopt the modification method of sheath core fibre structural design, even under common service condition, the anamorphic stretching rate of fiber reaches hundreds of %, can not be used for the modification of the high restorative synthetic fiber that stretch of high elongation rate.
The polymer that has the water imbibition base in the crowd knows at the acrylic compounds composite fibre of superficial layer introducing salt type carboxyl, molecule carries out the water imbibition synthetic fiber such as the polyacrylic acid fibrid of fiberizing, maleic anhydride fibrid, polyvinyl alcohol fibrid, alginic acid fibrid, polyurethane fiber.
As the high elongation rate high stretching recovery characteristics synthetic fiber of dress material with the polyurethanes synthetic fiber of elastic fiber material, polyether ester class synthetic fiber etc., be the form use to make the elasticity cloth and silk that shows high stretch with hybrid process such as polyamide-based synthetic fiber, polyesters synthetic fiber, regenerated celulose fibre, cotton, silk, wools basically.And this elasticity cloth and silk can be made into simultaneously to satisfy and is fit to sense and moves the freely elasticity dress material of property and snugness of fit.Just because of the elasticity dress material, its Products Design is that the requirement cloth and silk is adjacent to health all the time, thus health and and its cloth and silk of being close between the space have to diminish.There are the easily sultry shortcoming that diminishes comfort in the reason that designs from this elasticity dress material, elasticity dress material.Therefore the high restorative synthetic fiber that stretch of strong request high elongation rate are hygroscopicity, water imbibition, wet putting, poisture-penetrability fiber.
Health and cloth and silk be close to the desired elasticity dress material of design, with respect to the friction of multilayer dress material, require the colorfastness high elasticity cloth and silk of fastness that for example rubs.For example, clothing with laminations that interweaves such as the natural fabric of silk etc. or polyamide-based synthetic fiber, generally be after mutually rubbing with the poor elasticity cloth and silk of colorfastness under high temperature, the high humidity environment, there is the tendency that causes gamut, this tendency especially fiber hygroscopicity heals when high, and moistening friction colorfastness (hereinafter referred to as friction fastness) is lower.So this respect also wishes to improve the colorfastness of the high restorative synthetic fiber that stretch of hygroscopic high elongation rate.
In European patent EP 0, the polyurethane that has proposed to contain in the polymer molecule water-soluble poly alkylene ether polyalcohol of number-average molecular weight 2000～13000 in 892, the 094A2 communique melt extrudes the polyurethane filament that obtains water absorption rate 200～3000 % by weight (25 ℃) after the spinning.According to the record of this patent working example etc., the poor tensile strength during this known water imbibition polyurethane fiber swelling.
When water absorption rate is greater than 200 % by weight in the time of 25 ℃, become the fiber of poor properties after the swelling, add man-hour in dyeing, produce fracture of wire after the suction, easy fracture of wire after the polyurethane filament suction when wearing the clothes, and dress material (as getting wet) becomes heavy during suction, diminishes comfort, can be described as the reason that has comprised that moistening friction fastness descends.In addition, according to the present invention's etc. opinion, as described later, the fiber that water imbibition is large is not the adequate condition of the high fiber of wet putting.
Unexamined Patent 5-271432 communique proposes to use the composition that is dissolved with magnesium salts in the polyether polyols with reduced unsaturation, and the poisture-penetrability raising also suppresses the curling of cloth and silk.But the polyurethane moulded material of making in this way, intensity obviously reduces during moisture absorption.Difficult because of moisture releasing again, during perspiration the improvement of comfortableness undesirable, colorfastness is also undesirable.
Summary of the invention
The objective of the invention is for above-mentioned deficiency, providing a kind of selects from the fibrous raw material component, component preliminary treatment, polymer melt preparation, spray silk, the particular design that forms the series of process steps such as the high-elastic hygroscopic fibre of layered false twist and the special optimization of relevant parameter, form the processing technology of the high-elastic hygroscopic fibre of a kind of layered false twist, make the layered false twist fiber reach comfort property and the appearance effect such as good high-elastic, moisture absorption, perspire.
For achieving the above object, the present invention is achieved by the following technical solutions:
The processing technology of the high-elastic hygroscopic fibre of a kind of layered false twist of the present invention, it is characterized in that the raw material of the high-elastic hygroscopic fibre cortex of this layered false twist is that the weight score is not 5.4: 1.3: 4.2: 1.2 organosilicon polyester section, polyoxypropylene, organic silicon polyether silicone oil and polyethylene glycol; The raw material of sandwich layer is that the weight score is not 2.6: 1.9: 1.4: 1.6 organosilicon polyester section, polyoxypropylene, polyvinylpyrrolidone and polyethylene glycol; The section of organosilicon polyester in its mediopellis and the sandwich layer all is to be 0.6: 3.6: 3.8 according to weight ratio respectively with organosilicon powder, p-phthalic acid, dimethyl terephthalate (DMT) and ethylene glycol: 4.1, carry out the organosilicon polyester section that polycondensation reaction prepares; This processing technology may further comprise the steps successively:
(1): organosilicon polyester section is carried out pre-crystallized, then carried out solid phase and obtain the organosilicon polyester section that viscosity is 1.411～1.413dl/g; Wherein, above-mentioned pre-crystallized temperature is controlled to be 223～225 ℃, and the pre-crystallized time is 3～5min; The temperature of above-mentioned solid phase polymerization is controlled at 203～207 ℃, time of solid phase and keeps 7～9min; Then be that the organosilicon polyester section of 1.411～1.413dl/g adds in the reactor that agitating device is housed and fully mixes with above-mentioned viscosity, add in the single screw extrusion machine after the cooling, single screw extrusion machine be equally divided into successively four districts according to extruding pipe length, four district's temperature are 220 ℃, 225 ℃, 233 ℃, 203 ℃, screw speed is 542rpm, and blank speed is 998rpm;
(2): evenly adding amine chain extender, amine reaction controlling agent carry out chain extending reaction in 233 ℃ of humidity provinces of step (1) single screw extrusion machine, obtain the molten polymer melt of high molecular, then be assigned to three melt arms through the melt house steward, send into filament spinning component again after the measuring pump metering and extrude the formation tow from spinnerets, polyester fondant is 1550g/min for amount in the measuring pump; The tow that sprays is that 136 ℃ of first a heat maintenance 5min, the first heat insulation cylinder maintenance 4min, temperature are that 174 ℃ of second hot cylinder maintenance 5min, temperature are that 196 ℃ of the 3rd hot maintenance 3min, the second heat insulation cylinder 8min, temperature are 232 ℃ of the 4th heat 2min through excess temperature respectively;
(3): with being 232 ℃ of the 4th polymer melt cooling curing in cross air blowing device behind the heat 2min through described temperature in the step (2), enter spinning shaft; Wherein, the lateral blowing temperature of cross air blowing device is 27 ℃, and blast is 0.066KPa; Oil through nozzle again, form the nascent high-elastic hygroscopic fibre of layered false twist; The high-elastic hygroscopic fibre of described nascent layered false twist is passed through a pair of roller draft, the first hot case, coldplate successively, then carry out draw false twisting at false twist texturing machine, and then through the second hot case, cooling is by three draw-off godets in upper, middle and lower, enter winding head, obtain the high-elastic hygroscopic fibre of layered false twist through high-speed winding; Wherein, the first heater temperature is 213 ℃, and the second heater temperature is 184 ℃, and the draw ratio of described a pair of roller draft is 1.764.
As preferred technical scheme:
The temperature of solid phase is controlled at 204 ℃ in the step (1).
The temperature of solid phase is controlled at 206 ℃ in the step (1).
The specific embodiment
Below in conjunction with the specific embodiment, further set forth the present invention.
Embodiment 1:
The processing technology of the high-elastic hygroscopic fibre of a kind of layered false twist, it is characterized in that the raw material of the high-elastic hygroscopic fibre cortex of this layered false twist is that the weight score is not 5.4: 1.3: 4.2: 1.2 organosilicon polyester section, polyoxypropylene, organic silicon polyether silicone oil and polyethylene glycol; The raw material of sandwich layer is that the weight score is not 2.6: 1.9: 1.4: 1.6 organosilicon polyester section, polyoxypropylene, polyvinylpyrrolidone and polyethylene glycol; The section of organosilicon polyester in its mediopellis and the sandwich layer all is to be 0.6: 3.6: 3.8 according to weight ratio respectively with organosilicon powder, p-phthalic acid, dimethyl terephthalate (DMT) and ethylene glycol: 4.1, carry out the organosilicon polyester section that polycondensation reaction prepares; This processing technology may further comprise the steps successively:
(1): organosilicon polyester section is carried out pre-crystallized, then carried out solid phase and obtain the organosilicon polyester section that viscosity is 1.411～1.413dl/g; Wherein, above-mentioned pre-crystallized temperature is controlled to be 223～225 ℃, and the pre-crystallized time is 3～5min; The temperature of above-mentioned solid phase polymerization is controlled at 203 ℃, time of solid phase and keeps 7～9min; Then be that the organosilicon polyester section of 1.411～1.413dl/g adds in the reactor that agitating device is housed and fully mixes with above-mentioned viscosity, add in the single screw extrusion machine after the cooling, single screw extrusion machine be equally divided into successively four districts according to extruding pipe length, four district's temperature are 220 ℃, 225 ℃, 233 ℃, 203 ℃, screw speed is 542rpm, and blank speed is 998rpm;
(2): evenly adding amine chain extender, amine reaction controlling agent carry out chain extending reaction in 233 ℃ of humidity provinces of step (1) single screw extrusion machine, obtain the molten polymer melt of high molecular, then be assigned to three melt arms through the melt house steward, send into filament spinning component again after the measuring pump metering and extrude the formation tow from spinnerets, polyester fondant is 1550g/min for amount in the measuring pump; The tow that sprays is that 136 ℃ of first a heat maintenance 5min, the first heat insulation cylinder maintenance 4min, temperature are that 174 ℃ of second hot cylinder maintenance 5min, temperature are that 196 ℃ of the 3rd hot maintenance 3min, the second heat insulation cylinder 8min, temperature are 232 ℃ of the 4th heat 2min through excess temperature respectively;
(3): with being 232 ℃ of the 4th polymer melt cooling curing in cross air blowing device behind the heat 2min through described temperature in the step (2), enter spinning shaft; Wherein, the lateral blowing temperature of cross air blowing device is 27 ℃, and blast is 0.066KPa; Oil through nozzle again, form the nascent high-elastic hygroscopic fibre of layered false twist; The high-elastic hygroscopic fibre of described nascent layered false twist is passed through a pair of roller draft, the first hot case, coldplate successively, then carry out draw false twisting at false twist texturing machine, and then through the second hot case, cooling is by three draw-off godets in upper, middle and lower, enter winding head, obtain the high-elastic hygroscopic fibre of layered false twist through high-speed winding; Wherein, the first heater temperature is 213 ℃, and the second heater temperature is 184 ℃, and the draw ratio of described a pair of roller draft is 1.764.
Embodiment 2:
The processing technology of the high-elastic hygroscopic fibre of a kind of layered false twist, it is characterized in that the raw material of the high-elastic hygroscopic fibre cortex of this layered false twist is that the weight score is not 5.4: 1.3: 4.2: 1.2 organosilicon polyester section, polyoxypropylene, organic silicon polyether silicone oil and polyethylene glycol; The raw material of sandwich layer is that the weight score is not 2.6: 1.9: 1.4: 1.6 organosilicon polyester section, polyoxypropylene, polyvinylpyrrolidone and polyethylene glycol; The section of organosilicon polyester in its mediopellis and the sandwich layer all is to be 0.6: 3.6: 3.8 according to weight ratio respectively with organosilicon powder, p-phthalic acid, dimethyl terephthalate (DMT) and ethylene glycol: 4.1, carry out the organosilicon polyester section that polycondensation reaction prepares; This processing technology may further comprise the steps successively:
(1): organosilicon polyester section is carried out pre-crystallized, then carried out solid phase and obtain the organosilicon polyester section that viscosity is 1.411～1.413dl/g; Wherein, above-mentioned pre-crystallized temperature is controlled to be 223～225 ℃, and the pre-crystallized time is 3～5min; The temperature of above-mentioned solid phase polymerization is controlled at 204 ℃, time of solid phase and keeps 7～9min; Then be that the organosilicon polyester section of 1.411～1.413dl/g adds in the reactor that agitating device is housed and fully mixes with above-mentioned viscosity, add in the single screw extrusion machine after the cooling, single screw extrusion machine be equally divided into successively four districts according to extruding pipe length, four district's temperature are 220 ℃, 225 ℃, 233 ℃, 203 ℃, screw speed is 542rpm, and blank speed is 998rpm;
(2): evenly adding amine chain extender, amine reaction controlling agent carry out chain extending reaction in 233 ℃ of humidity provinces of step (1) single screw extrusion machine, obtain the molten polymer melt of high molecular, then be assigned to three melt arms through the melt house steward, send into filament spinning component again after the measuring pump metering and extrude the formation tow from spinnerets, polyester fondant is 1550g/min for amount in the measuring pump; The tow that sprays is that 136 ℃ of first a heat maintenance 5min, the first heat insulation cylinder maintenance 4min, temperature are that 174 ℃ of second hot cylinder maintenance 5min, temperature are that 196 ℃ of the 3rd hot maintenance 3min, the second heat insulation cylinder 8min, temperature are 232 ℃ of the 4th heat 2min through excess temperature respectively;
(3): with being 232 ℃ of the 4th polymer melt cooling curing in cross air blowing device behind the heat 2min through described temperature in the step (2), enter spinning shaft; Wherein, the lateral blowing temperature of cross air blowing device is 27 ℃, and blast is 0.066KPa; Oil through nozzle again, form the nascent high-elastic hygroscopic fibre of layered false twist; The high-elastic hygroscopic fibre of described nascent layered false twist is passed through a pair of roller draft, the first hot case, coldplate successively, then carry out draw false twisting at false twist texturing machine, and then through the second hot case, cooling is by three draw-off godets in upper, middle and lower, enter winding head, obtain the high-elastic hygroscopic fibre of layered false twist through high-speed winding; Wherein, the first heater temperature is 213 ℃, and the second heater temperature is 184 ℃, and the draw ratio of described a pair of roller draft is 1.764.
Embodiment 3:
The processing technology of the high-elastic hygroscopic fibre of a kind of layered false twist, it is characterized in that the raw material of the high-elastic hygroscopic fibre cortex of this layered false twist is that the weight score is not 5.4: 1.3: 4.2: 1.2 organosilicon polyester section, polyoxypropylene, organic silicon polyether silicone oil and polyethylene glycol; The raw material of sandwich layer is that the weight score is not 2.6: 1.9: 1.4: 1.6 organosilicon polyester section, polyoxypropylene, polyvinylpyrrolidone and polyethylene glycol; The section of organosilicon polyester in its mediopellis and the sandwich layer all is to be 0.6: 3.6: 3.8 according to weight ratio respectively with organosilicon powder, p-phthalic acid, dimethyl terephthalate (DMT) and ethylene glycol: 4.1, carry out the organosilicon polyester section that polycondensation reaction prepares; This processing technology may further comprise the steps successively:
(1): organosilicon polyester section is carried out pre-crystallized, then carried out solid phase and obtain the organosilicon polyester section that viscosity is 1.411～1.413dl/g; Wherein, above-mentioned pre-crystallized temperature is controlled to be 223～225 ℃, and the pre-crystallized time is 3～5min; The temperature of above-mentioned solid phase polymerization is controlled at 206 ℃, time of solid phase and keeps 7～9min; Then be that the organosilicon polyester section of 1.411～1.413dl/g adds in the reactor that agitating device is housed and fully mixes with above-mentioned viscosity, add in the single screw extrusion machine after the cooling, single screw extrusion machine be equally divided into successively four districts according to extruding pipe length, four district's temperature are 220 ℃, 225 ℃, 233 ℃, 203 ℃, screw speed is 542rpm, and blank speed is 998rpm;
(2): evenly adding amine chain extender, amine reaction controlling agent carry out chain extending reaction in 233 ℃ of humidity provinces of step (1) single screw extrusion machine, obtain the molten polymer melt of high molecular, then be assigned to three melt arms through the melt house steward, send into filament spinning component again after the measuring pump metering and extrude the formation tow from spinnerets, polyester fondant is 1550g/min for amount in the measuring pump; The tow that sprays is that 136 ℃ of first a heat maintenance 5min, the first heat insulation cylinder maintenance 4min, temperature are that 174 ℃ of second hot cylinder maintenance 5min, temperature are that 196 ℃ of the 3rd hot maintenance 3min, the second heat insulation cylinder 8min, temperature are 232 ℃ of the 4th heat 2min through excess temperature respectively;
(3): with being 232 ℃ of the 4th polymer melt cooling curing in cross air blowing device behind the heat 2min through described temperature in the step (2), enter spinning shaft; Wherein, the lateral blowing temperature of cross air blowing device is 27 ℃, and blast is 0.066KPa; Oil through nozzle again, form the nascent high-elastic hygroscopic fibre of layered false twist; The high-elastic hygroscopic fibre of described nascent layered false twist is passed through a pair of roller draft, the first hot case, coldplate successively, then carry out draw false twisting at false twist texturing machine, and then through the second hot case, cooling is by three draw-off godets in upper, middle and lower, enter winding head, obtain the high-elastic hygroscopic fibre of layered false twist through high-speed winding; Wherein, the first heater temperature is 213 ℃, and the second heater temperature is 184 ℃, and the draw ratio of described a pair of roller draft is 1.764.
Embodiment 4:
The processing technology of the high-elastic hygroscopic fibre of a kind of layered false twist, it is characterized in that the raw material of the high-elastic hygroscopic fibre cortex of this layered false twist is that the weight score is not 5.4: 1.3: 4.2: 1.2 organosilicon polyester section, polyoxypropylene, organic silicon polyether silicone oil and polyethylene glycol; The raw material of sandwich layer is that the weight score is not 2.6: 1.9: 1.4: 1.6 organosilicon polyester section, polyoxypropylene, polyvinylpyrrolidone and polyethylene glycol; The section of organosilicon polyester in its mediopellis and the sandwich layer all is to be 0.6: 3.6: 3.8 according to weight ratio respectively with organosilicon powder, p-phthalic acid, dimethyl terephthalate (DMT) and ethylene glycol: 4.1, carry out the organosilicon polyester section that polycondensation reaction prepares; This processing technology may further comprise the steps successively:
(1): organosilicon polyester section is carried out pre-crystallized, then carried out solid phase and obtain the organosilicon polyester section that viscosity is 1.411～1.413dl/g; Wherein, above-mentioned pre-crystallized temperature is controlled to be 223～225 ℃, and the pre-crystallized time is 3～5min; The temperature of above-mentioned solid phase polymerization is controlled at 207 ℃, time of solid phase and keeps 7～9min; Then be that the organosilicon polyester section of 1.411～1.413dl/g adds in the reactor that agitating device is housed and fully mixes with above-mentioned viscosity, add in the single screw extrusion machine after the cooling, single screw extrusion machine be equally divided into successively four districts according to extruding pipe length, four district's temperature are 220 ℃, 225 ℃, 233 ℃, 203 ℃, screw speed is 542rpm, and blank speed is 998rpm;
(2): evenly adding amine chain extender, amine reaction controlling agent carry out chain extending reaction in 233 ℃ of humidity provinces of step (1) single screw extrusion machine, obtain the molten polymer melt of high molecular, then be assigned to three melt arms through the melt house steward, send into filament spinning component again after the measuring pump metering and extrude the formation tow from spinnerets, polyester fondant is 1550g/min for amount in the measuring pump; The tow that sprays is that 136 ℃ of first a heat maintenance 5min, the first heat insulation cylinder maintenance 4min, temperature are that 174 ℃ of second hot cylinder maintenance 5min, temperature are that 196 ℃ of the 3rd hot maintenance 3min, the second heat insulation cylinder 8min, temperature are 232 ℃ of the 4th heat 2min through excess temperature respectively;
(3): with being 232 ℃ of the 4th polymer melt cooling curing in cross air blowing device behind the heat 2min through described temperature in the step (2), enter spinning shaft; Wherein, the lateral blowing temperature of cross air blowing device is 27 ℃, and blast is 0.066KPa; Oil through nozzle again, form the nascent high-elastic hygroscopic fibre of layered false twist; The high-elastic hygroscopic fibre of described nascent layered false twist is passed through a pair of roller draft, the first hot case, coldplate successively, then carry out draw false twisting at false twist texturing machine, and then through the second hot case, cooling is by three draw-off godets in upper, middle and lower, enter winding head, obtain the high-elastic hygroscopic fibre of layered false twist through high-speed winding; Wherein, the first heater temperature is 213 ℃, and the second heater temperature is 184 ℃, and the draw ratio of described a pair of roller draft is 1.764.
Claims (3)
1. the processing technology of the high-elastic hygroscopic fibre of layered false twist, it is characterized in that the raw material of the high-elastic hygroscopic fibre cortex of this layered false twist is that the weight score is not the organosilicon polyester section of 5.4:1.3:4.2:1.2, polyoxypropylene, organic silicon polyether silicone oil and polyethylene glycol; The raw material of sandwich layer is that the weight score is not organosilicon polyester section, polyoxypropylene, polyvinylpyrrolidone and the polyethylene glycol of 2.6:1.9:1.4:1.6; The section of organosilicon polyester in its mediopellis and the sandwich layer all is to be 0.6:3.6:3.8:4.1 according to weight ratio respectively with organosilicon powder, p-phthalic acid, dimethyl terephthalate (DMT) and ethylene glycol, carries out the organosilicon polyester section that polycondensation reaction prepares; This processing technology may further comprise the steps successively:
(1): organosilicon polyester section is carried out pre-crystallized, then carried out solid phase and obtain the organosilicon polyester section that viscosity is 1.411 ~ 1.413dl/g; Wherein, above-mentioned pre-crystallized temperature is controlled to be 223 ~ 225 ℃, and the pre-crystallized time is 3 ~ 5min; The temperature of above-mentioned solid phase polymerization is controlled at 203 ~ 207 ℃, time of solid phase and keeps 7～9min; Then be the polyoxypropylene in the raw material of the organosilicon polyester section of 1.411 ~ 1.413dl/g and corresponding described cortex with above-mentioned viscosity, organic silicon polyether silicone oil and polyethylene glycol, and the polyoxypropylene in the raw material of described sandwich layer, polyvinylpyrrolidone and polyethylene glycol add respectively in the reactor that agitating device is housed and fully mix, add in the single screw extrusion machine after the cooling, single screw extrusion machine is equally divided into four districts successively according to extruding pipe length, four district's temperature are 220 ℃, 225 ℃, 233 ℃, 203 ℃, screw speed is 542rpm, and blank speed is 998rpm;
(2): evenly adding amine chain extender, amine reaction controlling agent carry out chain extending reaction in 233 ℃ of humidity provinces of step (1) single screw extrusion machine, obtain the molten polymer melt of high molecular, then be assigned to three melt arms through the melt house steward, send into filament spinning component again after the measuring pump metering and extrude the formation tow from spinnerets, polyester fondant is 1550g/min for amount in the measuring pump; The tow that sprays is that 136 ℃ of first a heat maintenance 5min, the first heat insulation cylinder maintenance 4min, temperature are that 174 ℃ of second hot cylinder maintenance 5min, temperature are that 196 ℃ of the 3rd hot maintenance 3 min, the second heat insulation cylinder 8min, temperature are 232 ℃ of the 4th heat 2min through excess temperature respectively;
(3): with being 232 ℃ of the 4th polymer melt cooling curing in cross air blowing device behind the heat 2min through described temperature in the step (2), enter spinning shaft; Wherein, the lateral blowing temperature of cross air blowing device is 27 ℃, and blast is 0.066KPa; Oil through nozzle again, form the nascent high-elastic hygroscopic fibre of layered false twist; The high-elastic hygroscopic fibre of described nascent layered false twist is passed through a pair of roller draft, the first hot case, coldplate successively, then carry out draw false twisting at false twist texturing machine, and then through the second hot case, cooling is by three draw-off godets in upper, middle and lower, enter winding head, obtain the high-elastic hygroscopic fibre of layered false twist through high-speed winding; Wherein, the first heater temperature is 213 ℃, and the second heater temperature is 184 ℃, and the draw ratio of described a pair of roller draft is 1.764.
2. the processing technology of the high-elastic hygroscopic fibre of layered false twist according to claim 1 is characterized in that: the temperature of solid phase is controlled at 204 ℃ in the step (1).
3. the processing technology of the high-elastic hygroscopic fibre of layered false twist according to claim 1 is characterized in that: the temperature of solid phase is controlled at 206 ℃ in the step (1).
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| CN1932095A (en) * | 2006-10-12 | 2007-03-21 | 东华大学 | Hydroscopic sweat-eliminating polyester fiber |
| CN101748512A (en) * | 2008-12-10 | 2010-06-23 | 东丽纤维研究所（中国）有限公司 | Polyester composite fiber and method for producing same |
| CN102031578A (en) * | 2009-09-25 | 2011-04-27 | 上海德福伦化纤有限公司 | Method for producing organic-silicone-modified hydrophilic abnormity polyester fiber |
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2011
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