CN103160940A - Preparation method of double-row ring blowing superfine denier provided with smooth and flat dacron pre-oriented yarn - Google Patents
Preparation method of double-row ring blowing superfine denier provided with smooth and flat dacron pre-oriented yarn Download PDFInfo
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- CN103160940A CN103160940A CN2013101036839A CN201310103683A CN103160940A CN 103160940 A CN103160940 A CN 103160940A CN 2013101036839 A CN2013101036839 A CN 2013101036839A CN 201310103683 A CN201310103683 A CN 201310103683A CN 103160940 A CN103160940 A CN 103160940A
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Abstract
The invention relates to a preparation method of a double-row ring blowing superfine denier provided with smooth and flat dacron pre-oriented yarn. Light polyester melt serves as raw materials, the preparation method comprises the following steps: (1) the light polyester melt passes through a melt conveying pipeline, the temperature of the melt conveying pipeline is between 280 DEG C and 282 DEG C, and meanwhile, the melt is conveyed into a spinning box body, the melt is filtered through a spinning component in the spinning box body, the melt is sprayed through a hole of a spinneret plate so as to form melt-shaped fibers, the spinning temperature is between 291 DEG C and 293 DEG C, and the spinning speed is between 2800m/min and 3000m/min; (2) the fibers are windchilled through an outer ring, the spinneret plate and an outer ring blowing tube are arranged in double rows, the length of a calm area is between 60mm and 70mm, the wind pressure of blowing of the outer ring is between 500 pascal and 600 pascal, and the yarn in the spinneret plate is solidified to nascent fibers; and (3) oil is pumped by an oil nozzle, the fibers are integrated through a pre-collector, and eventually package forming is conducted by a winding head. The preparation method is suitable for preparation of the double-row ring blowing superfine denier provided with the smooth and flat dacron pre-oriented yarn.
Description
Technical field
The present invention relates to the preparation method of polyster fibre, refer more particularly to the preparation method that a kind of double-row circular blowing super fine denier has light flat terylene pre-oriented yarn.
Background technology
It is raw material that fine denier lustrous flat terylene pre-oriented yarn adopts the glossy polyester melt, by operations such as spinning, stretchings, makes.The preparation method of fine denier lustrous flat terylene pre-oriented yarn in current polyster fibre industry: take the glossy polyester melt as raw material, send into spinning manifold by the melt Conveying pipeline after the booster pump supercharging, and through the measuring pump accurate measurement, after filtering, the filament spinning component in spinning manifold forms melt shape fiber, become as-spun fibre through the lateral blowing cooling curing again, wherein spinnerets is single setting, then after oil nozzle oils, integrate through pre-Network device, finally be shaped by the winding head package.Above-mentioned preparation method's shortcoming is: the mode that adopts lateral blowing in the cooling curing operation, because the intake near the lateral blowing one side is relatively large, side and back side air quantity less, add the impact of thin denier flat degree, melt thread specific area increases, under identical cooling condition, as-spun fibre is easier to heat radiation, and cooling velocity is faster, the degree of orientation and degree of crystallinity are higher, thereby make the product inhomogeneous cooling even, the product bar evenness is bad, lousiness is many, spinnability is poor, is unfavorable for rear processing; Spinnerets is single setting in addition, and when production has light flat terylene drafted fibre, flatness easily morphs, and production capacity is low.
Summary of the invention
Technical problem to be solved by this invention is: provide that a kind of the product bar evenness is good when spinning super fine denier flat spinning, spinnability is high, lousiness is few and when production has light flat terylene pre-oriented yarn, flatness is difficult for morphing, and the high double-row circular blowing super fine denier of production capacity has the preparation method of light flat terylene pre-oriented yarn.
For addressing the above problem, the technical solution used in the present invention is: a kind of double-row circular blowing super fine denier has the preparation method of light flat terylene pre-oriented yarn, with the p-phthalic acid, the glossy polyester melt that the ethylene glycol polymerization is made is raw material, comprise the steps: that (one) is 280～282 ℃ of melt Conveying pipelines in scope by the glossy polyester melt by temperature, simultaneously under the effect of booster pump, by the glossy polyester melt Conveying in spinning manifold, be conveyed into melt in spinning manifold after the measuring pump metering, filament spinning component in spinning manifold filters again, then from the hole of spinnerets, ejection forms melt shape fiber, wherein spinning temperature is 291～293 ℃, spinning speed is 2800～3000 m/mins, (2) melt shape fiber is cooling through outer-ring ventilation, wherein spinnerets and outer shroud blow cylinder and are double setting, and it is corresponding one by one that spinnerets and outer shroud blow cylinder, and wherein the length of zone of silence is at 60～70mm, the blast of outer-ring ventilation is 500～600 handkerchiefs, and the silk in spinnerets is cured into as-spun fibre, (3) as-spun fibre, after oil nozzle oils, is integrated into tow through pre-Network device, finally by the winding head package, is shaped, and wherein the first heat roller temperature is 55～65 ℃, and the second heat roller temperature is 55～65 ℃.
As a kind of preferred version, before the outer shroud quenching, first making melt shape fiber is 40～50 thick orders by upper strata, lower floor is the metal sand that 100～120 orders are thin, by precision, be nine layers of net sheet that 20 μ diameters are 62mm again, wherein the diameter of every layer of net sheet mesopore is followed successively by: 30 μ m, 50 μ m, 180 μ m, 250 μ m, 209 μ m, 250 μ m, 180 μ m, 50 μ m and 30 μ m.
As a kind of preferred version, the pressure that described booster pump provides is 15～20kg/cm2.
As a kind of preferred version, described oil nozzle oils in step, and double-row circular blowing position to oil nozzle spacing is 600～700mm.
As a kind of preferred version, described spinnerets is flat spinnerets.
As a kind of preferred version, the plate face of described spinnerets is provided with heating plate, and the temperature of heating plate is controlled at 260 ℃.
As a kind of preferred version, in described pre-Network device, compressed-air actuated pressure is: 0.8～1.2kg/cm
2.
As a kind of preferred version, the rotating speed of described measuring pump is 17.9～19.1 rev/mins, and oil concentration is 10%.
As a kind of preferred version, described tow through the first hot rod and the second hot-rolling drawing and setting the time, on the first hot rod around 3.5 circles, on the second hot rod around 4.5 circles.
The invention has the beneficial effects as follows: above-mentioned double-row circular blowing super fine denier has the preparation method of light flat terylene pre-oriented yarn owing to having adopted double-row outer-ring ventilation cooling, effectively guaranteed the uniformity to tow cooling, and wind speed is uniform and stable, little with air quantity, cost light, the product bar evenness is good, lousiness is few, good spinnability, can prepare a kind of monofilament linear density≤1.0dtex, fibre section is that flat super fine denier has light flat terylene pre-oriented yarn; When production has light flat terylene pre-oriented yarn, flatness is difficult for morphing, and cooling tow hole count is the twice of same area lateral blowing spinnerets, thereby has improved production capacity.
The accompanying drawing explanation
Fig. 1 is the structural representation of double-row outer-ring ventilation device in the present invention;
Fig. 2 is the A-A sectional structure schematic diagram in Fig. 1;
In figure: 1, outer shroud blows cylinder, and 2, the outer-ring ventilation casing, 3, spinnerets, 4, air inlet.
The specific embodiment
Below by specific embodiment, to double-row circular blowing super fine denier of the present invention, there is the preparation method of light flat terylene pre-oriented yarn to be described in further detail.
The double-row circular blowing super fine denier has the preparation method of light flat terylene pre-oriented yarn, take the glossy polyester melt as raw material, comprise the steps: the melt Conveying pipeline that () is 280 ℃ by the glossy polyester melt by temperature, in order to guarantee that melt has the identical time of staying while arriving each spinning part, make the melt distribution circuit simultaneously, spinning pump and filament spinning component etc. can keep the technological temperature of uniformity, the melt Conveying pipeline adopts biphenyl gas phase heating agent to regulate melt temperature, further prevent from spinning the super fine denier spinning and the serious silk that wafts occurs, the broken end phenomenon, controlled melt residence time, prevent from causing the degraded of polyester macromolecule to aggravate after long-time the stop.Simultaneously under the effect of booster pump, by the glossy polyester melt Conveying in spinning manifold, be conveyed into melt in spinning manifold after the measuring pump metering, filament spinning component in spinning manifold filters again, then from the hole of flat spinnerets 228F, ejection forms melt shape fiber, wherein, the pressure that booster pump provides is 15kg/cm
2the rotating speed of measuring pump is 17.9 rev/mins, and oil concentration is 10%, and spinning temperature is 291 ℃, spinning speed is 2800 m/mins, compare with the spinning speed below 2500 m/mins of routine, improved production capacity, and the plate face of spinnerets is provided with heating plate, the temperature of heating plate is controlled at 260 ℃, with the uniformity of further guaranteeing that melt spues from spinnerets, stability, and reduce lousiness.(2) before the outer shroud quenching, first making melt shape fiber is 40～50 thick orders by upper strata, the metal sand that lower floor is 100～120 detailed catalogues, by precision, be nine layers of net sheet that 20 μ diameters are 62mm again, wherein the diameter of every layer of net sheet mesopore is followed successively by: 30 μ m, 50 μ m, 180 μ m, 250 μ m, 209 μ m, 250 μ m, 180 μ m, 50 μ m and 30 μ m, this both can make to filter and reach good effect, can make again melt can produce higher resistance under the effect of filter course, make the melt frictional heat, temperature raises, improve the rheological characteristic of melt, to adapt to the demand of high pressure super fine denier flat filament spinning.Then pass through outer-ring ventilation cooling, as Fig. 1, double-row outer-ring ventilation device shown in Fig. 2, wind blows cylinder 1 formation outer shroud to outer shroud and blows mode from air inlet 4 enters outer-ring ventilation casing 2 inside, its outer-loop blows cylinder 1 for double setting, it is corresponding one by one that spinnerets 3 and outer shroud blow cylinder 1, spinnerets 3 correspondences are arranged on the top that outer shroud blows cylinder 1, the silk that spinnerets 3 sprays blows cylinder 1 inside through outer shroud, be solidified into as-spun fibre after outer-ring ventilation cooling, thereby effectively guaranteed cooling uniformity, and little with air quantity, cost is light, the product bar evenness is good, lousiness is few, good spinnability, and outer shroud blows cylinder and spinnerets adopts the mode of double setting, cooling tow is the twice of same area lateral blowing spinnerets, thereby improved production capacity, wherein the length of zone of silence is at 60mm, the blast of outer-ring ventilation is 500 handkerchiefs, (3) after oil nozzle oils, wherein through pre-Network device, integrate tow, finally by the winding head package, be shaped, wherein, double-row circular blowing position to oil nozzle spacing is 600mm, in pre-Network device, compressed-air actuated pressure is 0.8kg/cm
2, the first heat roller temperature is 55 ℃, the second heat roller temperature is 55 ℃, tow through the first hot rod and the second hot-rolling drawing and setting the time, on the first hot rod around 3.5 circles, on the second hot rod around 4.5 circles.
Embodiment 2
The melt Conveying pipeline that is 281 ℃ by temperature by the glossy polyester melt, in order to guarantee that melt has the identical time of staying while arriving each spinning part, make melt distribution circuit, spinning pump and filament spinning component etc. can keep the technological temperature of uniformity simultaneously, the melt Conveying pipeline adopts biphenyl gas phase heating agent to regulate melt temperature, further prevent from spinning the super fine denier spinning and the serious silk that wafts, broken end phenomenon occur, controlled melt residence time, prevented from causing the degraded of polyester macromolecule to aggravate after long-time the stop.Simultaneously under the effect of booster pump, by the glossy polyester melt Conveying in spinning manifold, be conveyed into melt in spinning manifold after the measuring pump metering, filament spinning component in spinning manifold filters again, then from the hole of flat spinnerets 228F, ejection forms melt shape fiber, wherein, the pressure that booster pump provides is 17kg/cm
2the rotating speed of measuring pump is 18.5 rev/mins, and oil concentration is 10%, and spinning temperature is 292 ℃, spinning speed is 2900 m/mins, compare with the spinning speed below 2500 m/mins of routine, improved production capacity, and the plate face of spinnerets is provided with heating plate, the temperature of heating plate is controlled at 260 ℃, with the uniformity of further guaranteeing that melt spues from spinnerets, stability, and reduce lousiness.(2) before the outer shroud quenching, first making melt shape fiber is 40～50 thick orders by upper strata, the metal sand that lower floor is 100～120 detailed catalogues, by precision, be nine layers of net sheet that 20 μ diameters are 62mm again, wherein the diameter of every layer of net sheet mesopore is followed successively by: 30 μ m, 50 μ m, 180 μ m, 250 μ m, 209 μ m, 250 μ m, 180 μ m, 50 μ m and 30 μ m, this both can make to filter and reach good effect, can make again melt can produce higher resistance under the effect of filter course, make the melt frictional heat, temperature raises, improve the rheological characteristic of melt, to adapt to the demand of high pressure super fine denier flat filament spinning.Then pass through outer-ring ventilation cooling, as Fig. 1, double-row outer-ring ventilation device shown in Fig. 2, wind blows cylinder 1 formation outer shroud to outer shroud and blows mode from air inlet 4 enters outer-ring ventilation casing 2 inside, its outer-loop blows cylinder 1 for double setting, it is corresponding one by one that spinnerets 3 and outer shroud blow cylinder 1, spinnerets 3 correspondences are arranged on the top that outer shroud blows cylinder 1, the silk that spinnerets 3 sprays blows cylinder 1 inside through outer shroud, be solidified into as-spun fibre after outer-ring ventilation cooling, thereby effectively guaranteed cooling uniformity, and little with air quantity, cost is light, the product bar evenness is good, lousiness is few, good spinnability, and outer shroud blows cylinder and spinnerets adopts the mode of double setting, cooling tow is the twice of same area lateral blowing spinnerets, thereby improved production capacity, wherein the length of zone of silence is at 65mm, the blast of outer-ring ventilation is 550 handkerchiefs, (3) after oil nozzle oils, wherein through pre-Network device, integrate tow, finally by the winding head package, be shaped, wherein, double-row circular blowing position to oil nozzle spacing is 650mm, in pre-Network device, compressed-air actuated pressure is 1kg/cm
2, the first heat roller temperature is 60 ℃, the second heat roller temperature is 60 ℃, tow through the first hot rod and the second hot-rolling drawing and setting the time, on the first hot rod around 3.5 circles, on the second hot rod around 4.5 circles.
Embodiment 3
The double-row circular blowing super fine denier has the preparation method of light flat terylene pre-oriented yarn, take the glossy polyester melt as raw material, comprise the steps: the melt Conveying pipeline that () is 282 ℃ by the glossy polyester melt by temperature, in order to guarantee that melt has the identical time of staying while arriving each spinning part, make the melt distribution circuit simultaneously, spinning pump and filament spinning component etc. can keep the technological temperature of uniformity, the melt Conveying pipeline adopts biphenyl gas phase heating agent to regulate melt temperature, further prevent from spinning the super fine denier spinning and the serious silk that wafts occurs, the broken end phenomenon, controlled melt residence time, prevent from causing the degraded of polyester macromolecule to aggravate after long-time the stop.Simultaneously under the effect of booster pump, by the glossy polyester melt Conveying in spinning manifold, be conveyed into melt in spinning manifold after the measuring pump metering, filament spinning component in spinning manifold filters again, then from the hole of flat spinnerets 228F, ejection forms melt shape fiber, wherein, the pressure that booster pump provides is 20kg/cm
2the rotating speed of measuring pump is 19.1 rev/mins, and oil concentration is 10%, and spinning temperature is 293 ℃, spinning speed is 3000 m/mins, compare with the spinning speed below 2500 m/mins of routine, improved production capacity, and the plate face of spinnerets is provided with heating plate, the temperature of heating plate is controlled at 260 ℃, with the uniformity of further guaranteeing that melt spues from spinnerets, stability, and reduce lousiness.(2) before the outer shroud quenching, first making melt shape fiber is 40～50 thick orders by upper strata, the metal sand that lower floor is 100～120 detailed catalogues, by precision, be nine layers of net sheet that 20 μ diameters are 62mm again, wherein the diameter of every layer of net sheet mesopore is followed successively by: 30 μ m, 50 μ m, 180 μ m, 250 μ m, 209 μ m, 250 μ m, 180 μ m, 50 μ m and 30 μ m, this both can make to filter and reach good effect, can make again melt can produce higher resistance under the effect of filter course, make the melt frictional heat, temperature raises, improve the rheological characteristic of melt, to adapt to the demand of high pressure super fine denier flat filament spinning.Then pass through outer-ring ventilation cooling, as Fig. 1, double-row outer-ring ventilation device shown in Fig. 2, wind blows cylinder 1 formation outer shroud to outer shroud and blows mode from air inlet 4 enters outer-ring ventilation casing 2 inside, its outer-loop blows cylinder 1 for double setting, it is corresponding one by one that spinnerets 3 and outer shroud blow cylinder 1, spinnerets 3 correspondences are arranged on the top that outer shroud blows cylinder 1, the silk that spinnerets 3 sprays blows cylinder 1 inside through outer shroud, be solidified into as-spun fibre after outer-ring ventilation cooling, thereby effectively guaranteed cooling uniformity, and little with air quantity, cost is light, the product bar evenness is good, lousiness is few, good spinnability, and outer shroud blows cylinder and spinnerets adopts the mode of double setting, cooling tow is the twice of same area lateral blowing spinnerets, thereby improved production capacity, wherein the length of zone of silence is at 70mm, the blast of outer-ring ventilation is 600 handkerchiefs, (3) after oil nozzle oils, wherein through pre-Network device, integrate tow, finally by the winding head package, be shaped, wherein, double-row circular blowing position to oil nozzle spacing is 700mm, in pre-Network device, compressed-air actuated pressure is 1.2kg/cm
2, the first heat roller temperature is 65 ℃, the second heat roller temperature is 65 ℃, tow through the first hot rod and the second hot-rolling drawing and setting the time, on the first hot rod around 3.5 circles, on the second hot rod around 4.5 circles.
The above embodiments are principle and the effect thereof of illustrative the invention only, and the embodiment of part utilization, but not for limiting the present invention; It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (9)
1. the double-row circular blowing super fine denier has the preparation method of light flat terylene pre-oriented yarn, with the p-phthalic acid, the glossy polyester melt that the ethylene glycol polymerization is made is raw material, it is characterized in that: comprise the steps: that (one) is 280～282 ℃ of melt Conveying pipelines in scope by the glossy polyester melt by temperature, simultaneously under the effect of booster pump, by the glossy polyester melt Conveying in spinning manifold, be conveyed into melt in spinning manifold after the measuring pump metering, filament spinning component in spinning manifold filters again, then from the hole of spinnerets, ejection forms melt shape fiber, wherein spinning temperature is 291～293 ℃, spinning speed is 2800～3000 m/mins, (2) melt shape fiber is cooling through outer-ring ventilation, wherein spinnerets and outer shroud blow cylinder and are double setting, and it is corresponding one by one that spinnerets and outer shroud blow cylinder, and wherein the length of zone of silence is at 60～70mm, the blast of outer-ring ventilation is 500～600 handkerchiefs, and the silk in spinnerets is cured into as-spun fibre, (3) as-spun fibre, after oil nozzle oils, is integrated into tow through pre-Network device, finally by the winding head package, is shaped, and wherein the first heat roller temperature is 55～65 ℃, and the second heat roller temperature is 55～65 ℃.
2. double-row circular blowing super fine denier according to claim 1 has the preparation method of light flat terylene pre-oriented yarn, it is characterized in that: before the outer shroud quenching, first making melt shape fiber is 40～50 thick orders by upper strata, the metal sand that lower floor is 100～120 detailed catalogues, by precision, be nine layers of net sheet that 20 μ diameters are 62mm again, wherein the diameter of every layer of net sheet mesopore is followed successively by: 30 μ m, 50 μ m, 180 μ m, 250 μ m, 209 μ m, 250 μ m, 180 μ m, 50 μ m and 30 μ m.
3. double-row circular blowing super fine denier according to claim 1 has the preparation method of light flat terylene pre-oriented yarn, it is characterized in that: the pressure that described booster pump provides is 15～20kg/cm
2.
4. double-row circular blowing super fine denier according to claim 1 has the preparation method of light flat terylene pre-oriented yarn, it is characterized in that: described oil nozzle oils in step, and double-row circular blowing position to oil nozzle spacing is 600～700mm.
5. double-row circular blowing super fine denier according to claim 1 has the preparation method of light flat terylene pre-oriented yarn, it is characterized in that: described spinnerets is flat spinnerets.
6. double-row circular blowing super fine denier according to claim 1 has the preparation method of light flat terylene pre-oriented yarn, it is characterized in that: the plate face of described spinnerets is provided with heating plate, and the temperature of heating plate is controlled at 260 ℃.
7. double-row circular blowing super fine denier according to claim 1 has the preparation method of light flat terylene pre-oriented yarn, it is characterized in that: in described pre-Network device, compressed-air actuated pressure is: 0.8～1.2kg/cm
2.
8. double-row circular blowing super fine denier according to claim 1 has the preparation method of light flat terylene pre-oriented yarn, it is characterized in that: the rotating speed of described measuring pump is 17.9～19.1 rev/mins, and oil concentration is 10%.
9. double-row circular blowing super fine denier according to claim 1 has the preparation method of light flat terylene pre-oriented yarn, it is characterized in that: described tow is through the first hot rod and the second hot-rolling drawing and setting the time, on the first hot rod around 3.5 circles, on the second hot rod around 4.5 circles.
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| CN103526311A (en) * | 2013-10-18 | 2014-01-22 | 王振海 | Multi-row synthetic tow cooling device |
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| CN110735197A (en) * | 2019-11-06 | 2020-01-31 | 新凤鸣集团股份有限公司 | Production method and equipment of superfine denier POY products |
| CN114808160A (en) * | 2022-05-31 | 2022-07-29 | 浙江安吉华逸化纤有限公司 | Single-layer graphene multifunctional composite fiber melt spinning equipment and process |
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Application publication date: 20130619 |