CN105002603A - Super-fine-denier polyester fiber and manufacturing method thereof - Google Patents

Super-fine-denier polyester fiber and manufacturing method thereof Download PDF

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CN105002603A
CN105002603A CN201510465908.4A CN201510465908A CN105002603A CN 105002603 A CN105002603 A CN 105002603A CN 201510465908 A CN201510465908 A CN 201510465908A CN 105002603 A CN105002603 A CN 105002603A
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polyester fiber
denier polyester
oxirane
fine denier
super fine
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CN105002603B (en
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王永锋
韦开顺
朱冬妹
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Jiangsu Hengke Advanced Materials Co Ltd
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Jiangsu Hengke Advanced Materials Co Ltd
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Abstract

The invention relates to a super-fine-denier polyester fiber and a manufacturing method thereof. The super-fine-denier polyester fiber is mainly made of polyester through spinneret orifice melt spinning and high-speed coiling by the adoption of a grazing agent. The grazing agent at least comprises fluorine-containing polyether, and the mass of the fluorine-containing polyether is larger than or equal to 45% of the mass of the grazing agent. The fluorine-containing polyether is a random copolymer of ethylene oxide, oxirane,2-[(1,1,2,2-tetrafluoroethoxy)methyl] and epoxypropane. The structural formula of the fluorine-containing polyether is as shown in the specification. The manufacturing method of the super-fine-denier polyester fiber comprises the steps of conducting measuring, extrusion, cooling, grazing, stretching and thermal shaping on the polyester and then conducting high-speed winding, and then the super-fine-denier polyester fiber is manufactured. The super-fine-denier polyester fiber has the advantages of being soft in hand feel, high in flexibility, gentle in gloss, high in water absorbing and oil absorbing performance, density, specific surface area and heat preservation performance and the like. The development of the weaving technology and the printing and dyeing technology enables more potential features of the super-fine-denier polyester fiber to be explored gradually.

Description

A kind of super fine denier polyester fiber and preparation method thereof
Technical field
The present invention relates to a kind of super fine denier polyester fiber and preparation method thereof.
Background technology
Polyethylene terephthalate (PET) fiber is since appearance, and obtain because of the performance of its excellence and rapidly develop, its output has become the hat of world's synthetic fiber.Polyester fiber has fracture strength and elastic modelling quantity is high, and resilience is moderate, and HEAT SETTING is excellent, a series of premium properties such as the good and acid-fast alkali-proof corrosion resistance of heat-resisting light resistance, and fabric has the advantages such as crease-resistant, stiffness is good, so, the fields such as polyester fiber is widely used in clothes, family is spun.
Along with improving constantly of people's living standard, people propose requirement higher to the comfortableness of clothing, functional, diversified and grade, current polyester drawn yarns general fibre total linear density is generally at about 30-150D, in spatter property, drapability, comfortableness, ordinary polyester fiber can not meet the instructions for use that high-grade fabric is produced.Fused mass directly spinning 10D (total linear density is 11dtex) serial ultra-fine denier polyester filament yarn has the good characteristics such as soft, high-flexibility, gloss are soft, high water suction oil absorption, high density high-specific surface area, high heat preservation performance, and along with weaving, the development of printing technology, its more how potential characteristic is also excavated day by day.Its fabric has soft fine and smooth feel, comfortable ventilating, is easy to nursing and the superiority such as the texture of outward appearance is better.
But current domestic super fine denier product limits by production equipment and technology, the line density of fiber is minimum can only accomplish about 15D, and product quality is generally unstable, drafted fibre product total linear density cannot thin dawnization industrialization production further, strongly limit fabric to more frivolous, soft, highly dense future development.
Production super fine denier polyester fiber, because the total linear density of fiber is too low, very easily sustains damage in spinning, drawing process, and finish is difficult to attachment evenly on the surface of strand simultaneously, and the coherent of tow is poor, easily produces lousiness and broken end in production process.The oil product that selected area update strategy diffusivity is good, wettability is good, the overall super fine denier polyester fiber that improves to oil uniformity, to ensureing that the quality of product will play larger effect.
Summary of the invention
The object of this invention is to provide a kind of super fine denier polyester fiber and preparation method thereof, the present invention prepares super soft superfine fibre polyester fiber by the use of the design and fluorine-containing finish that utilize the polyester fondant of high-quality, special spinneret orifice and high speed spinning.Finish of the present invention is made up of mineral oil, fluorochemical polyether, phosphate kalium salt and sodium alkyl sulfonate, and the working concentration of described finish is 10 ~ 20wt%.The composition of the fluorochemical polyether ethylene oxide base monomer used in the present invention is moderate, introduce [(1 simultaneously, 1,2,2-tetrafluoro ethyoxyl) methyl] oxirane, add the hydrogen bond in system, the increase of hydrogen bond is conducive to the raising of cloud point, because still keeping the quality of finish a bit while the working concentration at increase finish.The increase of finish working concentration can greatly reduce the consumption of energy in finish dry run, conserve energy.
A kind of super fine denier polyester fiber, mainly polyester is obtained by the preparation of spinneret orifice melt spinning, oil agent and high-speed winding; The finish of described oil agent at least comprises fluorochemical polyether, 45% of the quality of the quality >=described finish of fluorochemical polyether; Described fluorochemical polyether is the random copolymer of oxirane, [(1,1,2,2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane, and its structural formula is:
Wherein, m=10 ~ 20, n=20 ~ 30, k=1 ~ 3;
Fracture strength >=the 3.8cN/dtex of described superfine fibre polyester fiber, elongation at break is 30.0 ± 3.0%, and total linear density is 11dtex, and filament number is 0.40 ~ 1.50dtex.
11dtex super fine denier polyester filament, it have frivolous, dyeability good, have stronger flexibility simultaneously, its fabric has the softness as silk, can be used for doing the high-end textile products such as high-grade highly dense Polyester Taffeta.But because the total linear density of fiber is too low, very easily sustain damage in spinning, drawing process, selected area update strategy diffusivity be good, oil product that wettability is good, the overall super fine denier polyester fiber that improves to oil uniformity, to ensureing that the quality of product will play larger effect.
Described fluorochemical polyether can not only provide good level and smooth, emulsification and wetting function, can also provide a large amount of hydrogen bonds, improve cloud point, be conducive to the raising that finish uses high concentration, conserve energy for finish system.Oxirane (EO)/expoxy propane (PO) ratio is one of most important index of polyethers, also very large on the impact of polyethers performance.Pfpe molecule chain is arranged by multiple EO and PO chain link and forms, and compared with EO, PO chain link has a side base, sterically hindered larger.EO/PO is than increasing, and namely PO chain link reduces, and pending methyl group quantity declines, and intermolecular space steric hindrance reduces, and the hydrogen chain number formed between hydrone is many, so cloud point also raises.In pfpe molecule chain, the existence of branched structure can reduce surface tension simultaneously, improves wetting speed, increases with EO/PO, PO chain link containing branched chain methyl reduces, thus surface tension raises, and wetting speed slows down, and therefore must contain a certain amount of PO in polyethers macromolecular chain.But the hydrogen bond that polyethers and hydrone are formed mainly relies on the oxygen atom in ether, so cloud point raises limited, [(1,1,2,2-tetrafluoro ethyoxyl) methyl] introducing of oxirane, due to the existence of fluorine element, and the hydrogen bond number formed between hydrone is many will be increased, the cloud point of polyether aqueous solution can be improved further; Fluorine element is all in branched positional simultaneously, will reduce the surface tension of polyethers further.When finish forms oil film, fluorine element can, at surface enrichment, due to the characteristic of fluorine element, make the flatness of finish be further enhanced.
As preferred technical scheme:
A kind of super fine denier polyester fiber as above, the relative molecular weight of described fluorochemical polyether is 1000 ~ 4000; The cloud point of described fluorochemical polyether is 50 ~ 100 DEG C; Surface tension 25 ~ the 40dyn/cm of described fluorochemical polyether.
A kind of super fine denier polyester fiber as above, also comprises mineral oil, phosphate kalium salt and sodium alkyl sulfonate in described finish; Mineral oil has good heat resistance, has good compatibility with other component, and it has and oils evenly, and the feature that film strength is high, effectively can also reduce the coefficient of friction of fiber and metal, and the cohesive force of increase fiber, is conducive to boundling.Adopt anionic antistatic agent, can realize surface hydrophilic, the heat resistance of phosphate kalium salt is relatively good, good antistatic behaviour, can the antistatic effect of fortifying fibre, is conducive to the boundling of fiber.Sodium alkyl sulfonate add the penetrating power that can improve finish, make finish to be attached on tow in the short period of time uniformly, effectively can reduce the appearance of lousiness, broken end.
By weight: mineral oil is 25 ~ 35 parts; Fluorochemical polyether is 50 ~ 70 parts; Phosphate kalium salt is 8 ~ 15 parts; Sodium alkyl sulfonate is 2 ~ 7 parts;
Described mineral oil is the one in the mineral oil of 9# ~ 17#; Described phosphate kalium salt is the one in 1-isobutyl-3,5-dimethylhexylphosphoric acid sylvite, isomerous tridecanol polyoxyethylene ether phosphate kalium salt and ten tetracosanol phosphate kalium salts; Described sodium alkyl sulfonate is the one in dodecyl sodium sulfate, pentadecyl sulfonic acid sodium and sodium cetanesulfonate;
Described finish in use, is configured to water the emulsion that oil concentration is 10 ~ 20wt%.High speed spinning is high to the conditional request that oils, and the uniformity that oils directly has influence on bar dry values and the dyeing uniformity of fiber, the fluorine-containing oil product that selected area update strategy diffusivity is good.
A kind of super fine denier polyester fiber as above, described super fine denier polyester fiber line density deviation ratio≤1.0%, fracture strength CV value≤5.0%, extension at break CV value≤10.0%, yarn unevenness CV≤1.50%, boiling water shrinkage 7.5 ± 0.5%, oil content 1.00 ± 0.10%.
Present invention also offers a kind of preparation method of super fine denier polyester fiber, by polyester through measuring, extruding, cool, oil, stretch, HEAT SETTING and high-speed winding, obtained super fine denier polyester fiber;
The described temperature extruded is 290 ~ 295 DEG C;
The wind-warm syndrome of described cooling is 20 ~ 25 DEG C;
HT1:75~85℃;
HT2:120~128℃;
Described high-speed winding speed is 4000 ~ 5000m/min;
The described finish preparation method oiled:
By initiator and highly basic blended, then 105 ~ 125 DEG C are warming up to, add the oxirane, [(1 mixed again, 1,2,2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane, carry out polymerisation under protective atmosphere, reaction pressure is less than 0.4MPa, namely obtains fluorochemical polyether after reaching predetermined molecular weight;
Then, fluorochemical polyether, phosphate kalium salt and sodium alkyl sulfonate normal temperature are mixed, and then join in mineral oil by mixture, temperature controls, for 40-55 DEG C, to stir 1 ~ 3h, namely obtain described finish;
By weight:
Described finish in use, is configured to water the emulsion that oil concentration is 10 ~ 20wt%.
A kind of super fine denier polyester fiber as above, described initiator is butanols, and the amount of described butanols is the 1-5 ‰ of oxirane, [(1,1,2,2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane gross mass; Described highly basic is potassium hydroxide or NaOH; The amount of described highly basic is the 1-5 ‰ of oxirane, [(1,1,2,2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane gross mass.
A kind of super fine denier polyester fiber as above, the consumption of described oxirane, [(1,1,2,2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane is 10 ~ 20:1 ~ 3:20 ~ 30 in molar ratio.
A kind of super fine denier polyester fiber as above, described protective atmosphere is nitrogen atmosphere or inert gas atmosphere; Described predetermined molecular weight refers to that the relative molecular weight of product is 1000 ~ 4000.
A kind of super fine denier polyester fiber as above, described in reach predetermined molecular weight after product also carry out neutralizing, adsorb, vacuum dehydration, drying and filter.
A kind of super fine denier polyester fiber as above, the dyeing of described super fine denier polyester fiber is:
Dyeing DISPERSE DYES is Disperse Red 3B, disperse blue SE-2R or disperses bright blue S-GL, and fiber dyes respectively in High Temperature High Pressure machine; Before dye, fiber non-ionic surface active agent was 60 DEG C of process 30 minutes; Dye dosage is 2.0% (o.w.f); Dispersant NNO1.2g/L, pH value is 5, and bath raio is 1:50, and 60 DEG C enter dye, are warming up to 90 DEG C, 100 DEG C, 110 DEG C, 120 DEG C each constant temperature dyeing 1h.
A kind of super fine denier polyester fiber of the present invention, 10D series ultra-fine denier polyester filament yarn has the good characteristics such as soft, high-flexibility, gloss are soft, high water suction oil absorption, high density high-specific surface area, high heat preservation performance, and along with weaving, the development of printing technology, its more how potential characteristic is also excavated day by day.Beneficial effect:
1, super fine denier polyester fiber, its fabric has soft fine and smooth feel, comfortable ventilating, is easy to nursing and the superiority such as the texture of outward appearance is better.
2, fluorine-containing finish is adopted, the composition of the polyethers ethylene oxide base monomer in finish is moderate, introduce [(1 simultaneously, 1,2,2-tetrafluoro ethyoxyl) methyl] oxirane, add the hydrogen bond in system, the increase of hydrogen bond is conducive to the raising of cloud point, while the working concentration increasing finish, therefore still can keep the quality of finish.
3, when spinning oil forms oil film, fluorine element at surface enrichment, due to the characteristic of fluorine element, can make the flatness of finish be further enhanced, decreases the damage of fiber in running.Fluorine element is all in branched positional simultaneously, will reduce the surface tension of finish further.
Detailed description of the invention
Below in conjunction with detailed description of the invention, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
A kind of super fine denier polyester fiber of the present invention, mainly polyester is obtained by the preparation of spinneret orifice melt spinning, oil agent and high-speed winding; The finish of described oil agent at least comprises fluorochemical polyether, 45% of the quality of the quality >=described finish of fluorochemical polyether; Described fluorochemical polyether is the random copolymer of oxirane, [(1,1,2,2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane, and its structural formula is:
Wherein, m=10 ~ 20, n=20 ~ 30, k=1 ~ 3;
Fracture strength >=the 3.8cN/dtex of described super fine denier polyester fiber, elongation at break is 30.0 ± 3.0%, and total linear density is 11dtex, and filament number is 0.40 ~ 1.50dtex.
Wherein, the relative molecular weight of described fluorochemical polyether is 1000 ~ 4000; The cloud point of described fluorochemical polyether is 50 ~ 100 DEG C; Surface tension 25 ~ the 40dyn/cm of described fluorochemical polyether; Mineral oil, phosphate kalium salt and sodium alkyl sulfonate is also comprised in described finish;
By weight: mineral oil is 25 ~ 35 parts; Fluorochemical polyether is 50 ~ 70 parts; Phosphate kalium salt is 8 ~ 15 parts; Sodium alkyl sulfonate is 2 ~ 7 parts;
Described mineral oil is the one in the mineral oil of 9# ~ 17#; Described phosphate kalium salt is the one in 1-isobutyl-3,5-dimethylhexylphosphoric acid sylvite, isomerous tridecanol polyoxyethylene ether phosphate kalium salt and ten tetracosanol phosphate kalium salts; Described sodium alkyl sulfonate is the one in dodecyl sodium sulfate, pentadecyl sulfonic acid sodium and sodium cetanesulfonate;
Described finish in use, is configured to water the emulsion that oil concentration is 10 ~ 20wt%.
Super fine denier polyester fiber of the present invention line density deviation ratio≤1.0%, fracture strength CV value≤5.0%, extension at break CV value≤10.0%, yarn unevenness CV≤1.50%, boiling water shrinkage 7.5 ± 0.5%, oil content 1.00 ± 0.10%.
Embodiment 1
A kind of preparation method of super fine denier polyester fiber, first the finish oiled is prepared, its concrete preparation process is: by initiator butanols and highly basic potassium hydroxide blended, then 105 DEG C are warming up to, add the oxirane mixed again, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane, the amount of butanols is oxirane, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane gross mass 1 ‰, the amount of highly basic potassium hydroxide is oxirane, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane gross mass 1 ‰, oxirane, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] consumption of oxirane and expoxy propane is 10:1:20 in molar ratio, polymerisation is carried out under protective atmosphere is nitrogen atmosphere, reaction pressure is 0.4MPa, reaching relative molecular weight is after 1000, namely fluorochemical polyether is obtained, its cloud point is 50 DEG C, its surface tension 25dyn/cm,
Then, fluorochemical polyether, phosphate kalium salt 1-isobutyl-3,5-dimethylhexylphosphoric acid sylvite and sodium alkyl sulfonate dodecyl sodium sulfate normal temperature are mixed, and then mixture is joined in mineral oil, it is 40 DEG C that temperature controls, stir 1h, namely obtain finish, finish in use, is configured to water the emulsion that oil concentration is 10wt%;
By weight:
Then by polyester through measuring, extruding, cool, oil, stretch, HEAT SETTING and high-speed winding, obtained super fine denier polyester fiber;
The temperature extruded is 290 DEG C;
The wind-warm syndrome of cooling is 20 DEG C;
HT1:75℃
HT2:120℃
High-speed winding speed is 4000m/min.
The index of this super fine denier polyester fiber: the fracture strength of super fine denier polyester fiber: 3.8cN/dtex, elongation at break is 30.0%, and total linear density is 11dtex, and filament number is 0.40dtex; Line density deviation ratio: 1.0%, fracture strength CV value: 5.0%, extension at break CV value: 10.0%, yarn unevenness CV:1.50%, boiling water shrinkage: 7.5%, oil content 1.00%.
This super fine denier dyeing polyester fibers technique:
Dyeing DISPERSE DYES is Disperse Red 3B, and fiber dyes respectively in High Temperature High Pressure machine; Before dye, fiber non-ionic surface active agent was 60 DEG C of process 30 minutes; Dye dosage is 2.0% (o.w.f); Dispersant NNO1.2g/L, pH value is 5, and bath raio is 1:50, and 60 DEG C enter dye, are warming up to 90 DEG C, 100 DEG C, 110 DEG C, 120 DEG C each constant temperature dyeing 1h.
Embodiment 2
A kind of preparation method of super fine denier polyester fiber, first the finish oiled is prepared, its concrete steps are: by initiator butanols and highly basic NaOH blended, then 125 DEG C are warming up to, add the oxirane mixed again, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane, the amount of butanols is oxirane, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane gross mass 5 ‰, the amount of highly basic NaOH is oxirane, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane gross mass 5 ‰, oxirane, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] consumption of oxirane and expoxy propane is 20:3:30 in molar ratio, polymerisation is carried out under protective atmosphere is inert gas atmosphere, reaction pressure is 0.5MPa, reaching relative molecular weight is after 4000, neutralize, absorption, vacuum dehydration, drying and filtration, namely fluorochemical polyether is obtained, its cloud point is 100 DEG C, its surface tension 32dyn/cm,
Then, fluorochemical polyether, phosphate kalium salt isomerous tridecanol polyoxyethylene ether phosphate kalium salt and sodium alkyl sulfonate dodecyl sodium sulfate normal temperature are mixed, and then mixture is joined in mineral oil, it is 55 DEG C that temperature controls, stir 3h, namely obtain finish, finish in use, is configured to water the emulsion that oil concentration is 20wt%;
By weight:
Then by polyester through measuring, extruding, cool, oil, stretch, HEAT SETTING and high-speed winding, obtained super fine denier polyester fiber;
The temperature extruded is 295 DEG C;
The wind-warm syndrome of cooling is 25 DEG C;
HT1:85℃
HT2:128℃
High-speed winding speed is 5000m/min.
The index of this super fine denier polyester fiber: the fracture strength of super fine denier polyester fiber: 4.2cN/dtex, elongation at break is 28.0%, and total linear density is 11dtex, and filament number is 0.8dtex; Line density deviation ratio: 1.0%, fracture strength CV value: 4.0%, extension at break CV value: 8.0%, yarn unevenness CV:1.00%, boiling water shrinkage 7.8%, oil content 1.00%.
This super fine denier dyeing polyester fibers technique:
Dyeing DISPERSE DYES is disperse blue SE-2R, and fiber dyes respectively in High Temperature High Pressure machine; Before dye, fiber non-ionic surface active agent was 60 DEG C of process 30 minutes; Dye dosage is 2.0% (o.w.f); Dispersant NNO1.2g/L, pH value is 5, and bath raio is 1:50, and 60 DEG C enter dye, are warming up to 90 DEG C, 100 DEG C, 110 DEG C, 120 DEG C each constant temperature dyeing 1h.
Embodiment 3
A kind of preparation method of super fine denier polyester fiber, first the finish oiled is prepared, its concrete steps are: by initiator butanols and highly basic NaOH blended, then 115 DEG C are warming up to, add the oxirane mixed again, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane, the amount of butanols is oxirane, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane gross mass 2 ‰, the amount of highly basic NaOH is oxirane, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane gross mass 1.5 ‰, oxirane, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] consumption of oxirane and expoxy propane is 12:1:30 in molar ratio, polymerisation is carried out under protective atmosphere is inert gas atmosphere, reaction pressure is 0.8MPa, reaching relative molecular weight is after 3000, neutralize, absorption, vacuum dehydration, drying and filtration, namely fluorochemical polyether is obtained, its cloud point is 100 DEG C, its surface tension 40dyn/cm,
Then, fluorochemical polyether, phosphate kalium salt ten tetracosanol phosphate kalium salt and sodium alkyl sulfonate sodium cetanesulfonate normal temperature are mixed, and then mixture is joined in mineral oil, it is 45 DEG C that temperature controls, stir 2h, namely obtain finish, finish in use, is configured to water the emulsion that oil concentration is 18wt%;
By weight:
Then by polyester through measuring, extruding, cool, oil, stretch, HEAT SETTING and high-speed winding, obtained super fine denier polyester fiber;
The temperature extruded is 292 DEG C;
The wind-warm syndrome of cooling is 22 DEG C;
HT1:78℃
HT2:125℃
High-speed winding speed is 4500m/min.
The index of this super fine denier polyester fiber: the fracture strength of super fine denier polyester fiber: 4.0cN/dtex, elongation at break is 33.0%, and total linear density is 11dtex, and filament number is 1.00dtex; Line density deviation ratio: 1.0%, fracture strength CV value≤5.0%, extension at break CV value: 8.0%, yarn unevenness CV; 1.00%, boiling water shrinkage 7.0%, oil content 1.00%.
This super fine denier dyeing polyester fibers technique:
Dyeing DISPERSE DYES is the bright blue S-GL of dispersion, and fiber dyes respectively in High Temperature High Pressure machine; Before dye, fiber non-ionic surface active agent was 60 DEG C of process 30 minutes; Dye dosage is 2.0% (o.w.f); Dispersant NNO1.2g/L, pH value is 5, and bath raio is 1:50, and 60 DEG C enter dye, are warming up to 90 DEG C, 100 DEG C, 110 DEG C, 120 DEG C each constant temperature dyeing 1h.
Embodiment 4
A kind of preparation method of super fine denier polyester fiber, first the finish oiled is prepared, its concrete steps are: by initiator butanols and highly basic potassium hydroxide blended, then 120 DEG C are warming up to, add the oxirane mixed again, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane, the amount of butanols is oxirane, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane gross mass 4 ‰, the amount of highly basic potassium hydroxide is oxirane, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane gross mass 4 ‰, oxirane, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] consumption of oxirane and expoxy propane is 20:2:26 in molar ratio, polymerisation is carried out under protective atmosphere is inert gas atmosphere, reaction pressure is 0.8MPa, reaching relative molecular weight is after 2500, neutralize, absorption, vacuum dehydration, drying and filtration, namely fluorochemical polyether is obtained, its cloud point is 80 DEG C, its surface tension 37dyn/cm,
Then, fluorochemical polyether, phosphate kalium salt 1-isobutyl-3,5-dimethylhexylphosphoric acid sylvite and sodium alkyl sulfonate dodecyl sodium sulfate normal temperature are mixed, and then mixture is joined in mineral oil, it is 45 DEG C that temperature controls, stir 2h, namely obtain finish, finish in use, is configured to water the emulsion that oil concentration is 18wt%;
By weight:
Then by polyester through measuring, extruding, cool, oil, stretch, HEAT SETTING and high-speed winding, obtained super fine denier polyester fiber;
The temperature extruded is 293 DEG C;
The wind-warm syndrome of cooling is 22 DEG C;
HT1:78℃
HT2:125℃
High-speed winding speed is 4500m/min.
The index of this super fine denier polyester fiber: the fracture strength of super fine denier polyester fiber: 3.9cN/dtex, elongation at break is 33.0%, and total linear density is 11dtex, and filament number is 1.50dtex; Line density deviation ratio: 1.0%, fracture strength CV value: 4.0%, extension at break CV value 9.0%, yarn unevenness CV:1.50%, boiling water shrinkage 7.5%, oil content 1.00%.
This super fine denier dyeing polyester fibers technique:
Dyeing DISPERSE DYES is Disperse Red 3B, and fiber dyes respectively in High Temperature High Pressure machine; Before dye, fiber non-ionic surface active agent was 60 DEG C of process 30 minutes; Dye dosage is 2.0% (o.w.f); Dispersant NNO1.2g/L, pH value is 5, and bath raio is 1:50, and 60 DEG C enter dye, are warming up to 90 DEG C, 100 DEG C, 110 DEG C, 120 DEG C each constant temperature dyeing 1h.
Embodiment 5
A kind of preparation method of super fine denier polyester fiber, first the finish oiled is prepared, its concrete steps are: by initiator butanols and highly basic potassium hydroxide blended, then 125 DEG C are warming up to, add the oxirane mixed again, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane, the amount of butanols is oxirane, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane gross mass 3 ‰, the amount of highly basic is oxirane, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane gross mass 3 ‰, oxirane, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] consumption of oxirane and expoxy propane is 18:2:20 in molar ratio, polymerisation is carried out under protective atmosphere is nitrogen atmosphere, reaction pressure is 0.9MPa, reaching relative molecular weight is after 2500, neutralize, absorption, vacuum dehydration, drying and filtration, namely fluorochemical polyether is obtained, its cloud point is 70 DEG C, its surface tension 29dyn/cm,
Then, fluorochemical polyether, phosphate kalium salt isomerous tridecanol polyoxyethylene ether phosphate kalium salt and sodium alkyl sulfonate pentadecyl sulfonic acid sodium normal temperature are mixed, and then mixture is joined in mineral oil, it is 48 DEG C that temperature controls, stir 1h, namely obtain finish, finish in use, is configured to water the emulsion that oil concentration is 15wt%;
By weight:
Then by polyester through measuring, extruding, cool, oil, stretch, HEAT SETTING and high-speed winding, obtained super fine denier polyester fiber;
The temperature extruded is 294 DEG C;
The wind-warm syndrome of cooling is 23 DEG C;
HT1:77℃
HT2:125℃
High-speed winding speed is 4500m/min.
The index of this super fine denier polyester fiber: the fracture strength of super fine denier polyester fiber: 4.6cN/dtex, elongation at break is 27.0%, and total linear density is 11dtex, and filament number is 1.00dtex; Line density deviation ratio: 1.0%, fracture strength CV value: 4.0%, extension at break CV value: 7.0%, yarn unevenness CV:1.50%, boiling water shrinkage 7.0%, oil content 1.00%.
This super fine denier dyeing polyester fibers technique:
Dyeing DISPERSE DYES is disperse blue SE-2R, and fiber dyes respectively in High Temperature High Pressure machine; Before dye, fiber non-ionic surface active agent was 60 DEG C of process 30 minutes; Dye dosage is 2.0% (o.w.f); Dispersant NNO1.2g/L, pH value is 5, and bath raio is 1:50, and 60 DEG C enter dye, are warming up to 90 DEG C, 100 DEG C, 110 DEG C, 120 DEG C each constant temperature dyeing 1h.
Embodiment 6
A kind of preparation method of super fine denier polyester fiber, first the finish oiled is prepared, its concrete steps are: by initiator butanols and highly basic NaOH blended, then 123 DEG C are warming up to, add the oxirane mixed again, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane, the amount of butanols is oxirane, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane gross mass 4 ‰, the amount of highly basic is oxirane, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane gross mass 2 ‰, oxirane, [(1, 1, 2, 2-tetrafluoro ethyoxyl) methyl] consumption of oxirane and expoxy propane is 18:2:26 in molar ratio, polymerisation is carried out under protective atmosphere is nitrogen atmosphere, reaction pressure is 1.0MPa, reaching relative molecular weight is after 1600, neutralize, absorption, vacuum dehydration, drying and filtration, namely fluorochemical polyether is obtained, its cloud point is 82 DEG C, its surface tension 33dyn/cm,
Then, fluorochemical polyether, phosphate kalium salt ten tetracosanol phosphate kalium salt and sodium alkyl sulfonate sodium cetanesulfonate normal temperature are mixed, and then mixture is joined in mineral oil, it is 48 DEG C that temperature controls, stir 2h, namely obtain finish, finish in use, is configured to water the emulsion that oil concentration is 16wt%;
By weight:
Then by polyester through measuring, extruding, cool, oil, stretch, HEAT SETTING and high-speed winding, obtained super fine denier polyester fiber;
The temperature extruded is 293 DEG C;
The wind-warm syndrome of cooling is 23 DEG C;
HT1:78℃
HT2:126℃
High-speed winding speed is 4200m/min.
The index of this super fine denier polyester fiber: the fracture strength of super fine denier polyester fiber: 3.8cN/dtex, elongation at break is 30.0%, and total linear density is 11dtex, and filament number is 0.50dtex; Line density deviation ratio: 1.0%, fracture strength CV value: 5.0%, extension at break CV value: 8.0%, yarn unevenness CV:1.00%, boiling water shrinkage 7.0%, oil content 0.90%.
This super fine denier dyeing polyester fibers technique:
Dyeing DISPERSE DYES is the bright blue S-GL of dispersion, and fiber dyes respectively in High Temperature High Pressure machine; Before dye, fiber non-ionic surface active agent was 60 DEG C of process 30 minutes; Dye dosage is 2.0% (o.w.f); Dispersant NNO1.2g/L, pH value is 5, and bath raio is 1:50, and 60 DEG C enter dye, are warming up to 90 DEG C, 100 DEG C, 110 DEG C, 120 DEG C each constant temperature dyeing 1h.

Claims (10)

1. a super fine denier polyester fiber, is characterized in that: described super fine denier polyester fiber mainly polyester is obtained by the preparation of spinneret orifice melt spinning, oil agent and high-speed winding; The finish of described oil agent at least comprises fluorochemical polyether, 45% of the quality of the quality >=described finish of fluorochemical polyether; Described fluorochemical polyether is the random copolymer of oxirane, [(1,1,2,2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane, and its structural formula is:
Wherein, m=10 ~ 20, n=20 ~ 30, k=1 ~ 3;
Fracture strength >=the 3.8cN/dtex of described super fine denier polyester fiber, elongation at break is 30.0 ± 3.0%, and total linear density is 11dtex, and filament number is 0.40 ~ 1.50dtex.
2. a kind of super fine denier polyester fiber according to claim 1, is characterized in that, the relative molecular weight of described fluorochemical polyether is 1000 ~ 4000; The cloud point of described fluorochemical polyether is 50 ~ 100 DEG C; Surface tension 25 ~ the 40dyn/cm of described fluorochemical polyether.
3. a kind of super fine denier polyester fiber according to claim 1, is characterized in that, also comprise mineral oil, phosphate kalium salt and sodium alkyl sulfonate in described finish;
By weight: mineral oil is 25 ~ 35 parts; Fluorochemical polyether is 50 ~ 70 parts; Phosphate kalium salt is 8 ~ 15 parts; Sodium alkyl sulfonate is 2 ~ 7 parts;
Described mineral oil is the one in the mineral oil of 9# ~ 17#; Described phosphate kalium salt is the one in 1-isobutyl-3,5-dimethylhexylphosphoric acid sylvite, isomerous tridecanol polyoxyethylene ether phosphate kalium salt and ten tetracosanol phosphate kalium salts; Described sodium alkyl sulfonate is the one in dodecyl sodium sulfate, pentadecyl sulfonic acid sodium and sodium cetanesulfonate;
Described finish in use, is configured to water the emulsion that oil concentration is 10 ~ 20wt%.
4. a kind of super fine denier polyester fiber according to claim 1, it is characterized in that, described super fine denier polyester fiber line density deviation ratio≤1.0%, fracture strength CV value≤5.0%, extension at break CV value≤10.0%, yarn unevenness CV≤1.50%, boiling water shrinkage 7.5 ± 0.5%, oil content 1.00 ± 0.10%.
5. the preparation method of a kind of super fine denier polyester fiber according to any one of Claims 1 to 4, is characterized in that: by polyester through measuring, extruding, cool, oil, stretch, HEAT SETTING and high-speed winding, obtained super fine denier polyester fiber;
The described temperature extruded is 290 ~ 295 DEG C;
The wind-warm syndrome of described cooling is 20 ~ 25 DEG C;
HT1:75~85℃;
HT2:120~128℃;
Described high-speed winding speed is 4000 ~ 5000m/min;
The described finish preparation method oiled:
By initiator and highly basic blended, then 105 ~ 125 DEG C are warming up to, add the oxirane, [(1 mixed again, 1,2,2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane, carry out polymerisation under protective atmosphere, reaction pressure is less than 0.4MPa, namely obtains fluorochemical polyether after reaching predetermined molecular weight;
Then, fluorochemical polyether, phosphate kalium salt and sodium alkyl sulfonate normal temperature are mixed, and then join in mineral oil by mixture, temperature controls, for 40-55 DEG C, to stir 1 ~ 3h, namely obtain described finish;
By weight:
Described finish in use, is configured to water the emulsion that oil concentration is 10 ~ 20wt%.
6. the preparation method of a kind of super fine denier polyester fiber according to claim 5, is characterized in that, described initiator is butanols, the amount of described butanols is oxirane, [(1,1,2,2-tetrafluoro ethyoxyl) methyl] 1-5 ‰ of oxirane and expoxy propane gross mass; Described highly basic is potassium hydroxide or NaOH; The amount of described highly basic is 1 ~ 5 ‰ of oxirane, [(1,1,2,2-tetrafluoro ethyoxyl) methyl] oxirane and expoxy propane gross mass.
7. the preparation method of a kind of super fine denier polyester fiber according to claim 5, it is characterized in that, described oxirane, [(1,1,2,2-tetrafluoro ethyoxyl) methyl] consumption of oxirane and expoxy propane is 10 ~ 20:1 ~ 3:20 ~ 30 in molar ratio.
8. the preparation method of a kind of super fine denier polyester fiber according to claim 5, is characterized in that, described protective atmosphere is nitrogen atmosphere or inert gas atmosphere; Described predetermined molecular weight refers to that the relative molecular weight of product is 1000 ~ 4000.
9. the preparation method of a kind of super fine denier polyester fiber according to claim 5, is characterized in that, described in reach predetermined molecular weight after product also carry out neutralizing, adsorb, vacuum dehydration, drying and filter.
10. the preparation method of a kind of super fine denier polyester fiber according to claim 5, is characterized in that, the dyeing of described super fine denier polyester fiber is:
Dyeing DISPERSE DYES is Disperse Red 3B, disperse blue SE-2R or disperses bright blue S-GL, and fiber dyes respectively in High Temperature High Pressure machine; Before dye, fiber non-ionic surface active agent was 60 DEG C of process 30 minutes; Dye dosage is 2.0% (o.w.f); Dispersant NNO1.2g/L, pH value is 5, and bath raio is 1:50, and 60 DEG C enter dye, are warming up to 90 DEG C, 100 DEG C, 110 DEG C, 120 DEG C each constant temperature dyeing 1h.
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CN117684290A (en) * 2023-11-30 2024-03-12 江苏恒科新材料有限公司 Preparation method of superfine polyester filament yarn for chenille yarn
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CN105926060A (en) * 2016-06-12 2016-09-07 福建百宏聚纤科技实业有限公司 Melt direct spinning superfine denier polyester filament and making method thereof
CN107904694A (en) * 2017-12-14 2018-04-13 江苏恒力化纤股份有限公司 A kind of preparation method of high-strength activated polyester industrial filament
CN107988649A (en) * 2017-12-14 2018-05-04 江苏恒力化纤股份有限公司 Superfine draw texturing yarn and preparation method thereof
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CN108035156A (en) * 2017-12-14 2018-05-15 江苏恒力化纤股份有限公司 Terylene heavy caliber conveyer belt and preparation method thereof
CN108035011A (en) * 2017-12-14 2018-05-15 江苏恒力化纤股份有限公司 Fused mass directly spinning colored polyester fiber and preparation method thereof
CN108048940A (en) * 2017-12-14 2018-05-18 江苏恒力化纤股份有限公司 Soft type polyester fiber and preparation method thereof
CN108035156B (en) * 2017-12-14 2020-05-05 江苏恒力化纤股份有限公司 Terylene large-caliber conveyer belt and preparation method thereof
CN109487579A (en) * 2018-11-19 2019-03-19 浙江乐高实业股份有限公司 Super fine denier polyester fiber short route dyeing method
CN109487579B (en) * 2018-11-19 2021-01-26 浙江乐高实业股份有限公司 Short-process printing and dyeing method for superfine denier polyester fiber
CN117684290A (en) * 2023-11-30 2024-03-12 江苏恒科新材料有限公司 Preparation method of superfine polyester filament yarn for chenille yarn
CN118065007A (en) * 2024-04-18 2024-05-24 江苏恒力化纤股份有限公司 Preparation method of high-flexibility wear-resistant polyester monofilament

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