CN101831720A - Profiled fiber and spinneret plate and preparation method thereof - Google Patents
Profiled fiber and spinneret plate and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a profiled fiber and a spinneret plate and a preparation method thereof. The cross section of the fiber is in an approximately axisymmetric long cross shape and is divided into a long blade B1, a long blade D1, a short blade A1 and a short blade C1, wherein the long blade B1 and the long blade D1 are respectively provided with a middle section H the width of which is approximately constant and a slightly narrow blade tail end R, and the length ratio w5:w6 of the long blade B1 and the long blade D1 is 1-5:1; the ratio of the length w2 of the long blade B1 or the long blade D1 to the width w1 of the long blade B1 or the long blade D1 is 1.1-5:1; the ratio of the length w4 of the short blade A1 or the short blade C1 to the width w3 of the widest part of the short blade A1 or the short blade C1 is 0.5-2:1; and the ratio of the length w2 of the short blade B1 or the long blade D1 to the length w4 of the short blade A1 or the short blade C1 is 1.5-8:1. The fiber has a moisture transfer quick drying function, and meanwhile, the fiber can have an antibiotic function, an anti-ultraviolet function and an antistatic function.
Description
Technical field
The present invention relates to textile technology, is manufacturing technology of a kind of fiber and products thereof, specifically, is a kind of spinnerets of profiled fibre and profiled fibre of production thereof of preparing.
Background technology
Have the existence of the profiled fibre of many groove structures because of groove, have than the better moisture absorbing and sweat releasing effect of circular cross-section fiber, be subjected to the welcome of high-quality wearing fabric, the added value of fiber is higher.And the shown premium properties that goes out of thin dawn, micro Denier fiber also is various functional fibers, the motive power place of pursuing thin dawnization day by day as uvioresistant, fiber such as antibiotic, antistatic.As seen, odd-shaped cross section, thin dawnization and functionalization combined to improve the overall value of fiber undoubtedly, have the vast market demand.But this requirement to spinning equipment, technology is very high, and is also very high to the Capability Requirement of profile spinneret design and batch machining, and these all are the technical bottlenecks of the thin dawn profile spinneret of exploitation.
In the development process of profiled filament, raw bodies character such as the elasticity of polymer melt in the melt spinning extrusion swells, VISCOUS FLOW, surface tension are the starting points of exploitation, simultaneously also be other all external conditions mandatory principles that play a role, the relation between the conditions such as the Extrusion Flow speed in itself and the processing conditions, spinning temperature, environment cools condition, spinning speed is the key that the irregularly-shaped hole spinnerets is succeeded in developing.Simultaneously, finished fiber section feature, monofilament linear density, degree of profile, mechanics and microstructure index and after spin that to add requirements such as playing the false twist yarn index also be important technology index in the development process.Only take all factors into consideration above-mentioned factor, could successfully develop the more advanced irregularly-shaped hole spinnerets and the supporting manufacturing technology and the long filament of long filament thereof.
The spinneret orifice aspect, " cross " irregularly-shaped hole early has report, mainly contains CN2813642Y, CN86102459A, CN1667163A, CN201053042Y, CN201024241Y, CN2915899Y, CN2721661Y, CN2736376Y, CN1761779A, US4713289, US5208106, US3249669, US2945739, US3156085, US5176926, US5108838 etc. mostly are just " cross " shape and distortion thereof in the report, mode of texturing is as being designed to the junction between blade tip, the Ye Yuye than the slightly wide circle of leaf or rectangle etc.CN2511691Y report spinneret orifice is shaped as cross, two sections is trapezoidal about its cross, two sections are the micropore of two large semicircle shapes, about two sections trapezoidal upper base levels be bonded as one, two sections trapezoidal horizontal bonding places of upper base be bonded as one with the micropore of a large semicircle shape respectively up and down, as seen its report obviously differs from the present invention.
The fiber aspect, the disclosed coolmax fiber of the patent US5736243 of Du Pont length-width ratio is made up of ellipse between 1/0.35 to 1/0.7, and oval less than the wide leaf waist that does not change of leaf, its minimum monofilament linear density is 0.8dtex.Du Pont's hole shape is that three rhombuses are arranged side by side, and the centre is big slightly, and both sides are smaller, connects with thin linkage section therebetween.In order to spin thinner fine denier filament, need the spinneret orifice area of section littler, connect three rhombuses this moment in Du Pont's hole shape connection thin segment becomes processing difficulties, is difficult to produce in enormous quantities.
Patent US3914488 discloses a kind of four groove fibers and spinneret orifice shape thereof, and its fiber is made up of three circles side by side, seamlessly transits with two circular arcs respectively between three circles, has groove structure in the junction.Spinneret orifice has adopted three independently circular design of rhombus or three connections.Other patent that relates to cross or four groove fibers also has: CN101139740A, and CN1401020A, CN2898068Y, CN101195928A, US3109220, US5707737, US3616633A, etc., there is no the report identical with the present invention.
In view of this, special proposition the present invention.
Summary of the invention
First purpose of the present invention is to provide a kind of profiled fibre, and this profiled fibre has novel section feature, has moisture absorbing and sweat releasing performance preferably.
Second purpose of the present invention is to provide a kind of spinnerets for preparing profiled fibre, the spinneret orifice shape novelty of this spinnerets, the design considerations science, be easy to processing in enormous quantities, cost is low, adopt the prepared fiber of this spinnerets to have novel section feature, moisture absorbing and sweat releasing performance preferably, can be by the accurate controlling fiber section feature of adjusting of spinning technique, prepare the thin dawn chemical fibre dimension of 0.5dpf to 4dpf, applicable to the spinning of specific functionality master batch, prepare the chemical fibre dimension of thin dawn of odd-shaped cross section that integrates antibiotic, uvioresistant, anti-static function.
The 3rd purpose of the present invention is to provide a kind of preparation method of profiled fibre and this method thereof preparing pre-oriented yarn POY, staple fibre, fullly drawn yarn (FDY) FDY or draw textured yarn (DTY) DTY or have fiber antibiotic or uvioresistant or anti-static function in preparation, preferably have antibiotic simultaneously, application in the fiber of at least two kinds of functions in uvioresistant and the anti-static function, this method adopts spinnerets provided by the present invention, by the accurate controlling fiber section feature of the adjusting of spinning technique, prepare the thin dawn chemical fibre dimension of 0.5dpf to 4dpf, applicable to the spinning of specific functionality master batch, it is antibiotic to prepare collection, uvioresistant, anti-static function is in chemical fibre dimension of the thin dawn of odd-shaped cross section of one.
For realizing first purpose of the present invention, the present invention adopts following technical scheme:
A kind of profiled fibre, wherein:
The cross section of described profiled fibre is axisymmetric long cross roughly, is divided into the B1 that comes into leaves, the D1 that comes into leaves, short leaf A1 and four leaves of short leaf C1;
The described B1 of coming into leaves and the D1 that comes into leaves all have the interlude H of one section width constant and the narrow slightly terminal R of leaf, and both length ratio w5: w6 are 1～5: 1;
The ratio w2 of the length w2 of the described B1 of coming into leaves or the D1 that comes into leaves and the width w1 of the come into leaves B1 or the D1 that comes into leaves: w1 is 1.1～5: 1;
The length w4 of described short leaf A1 or weak point leaf C1 and the ratio w4 of the widest part width w3 of short leaf A1 or short leaf C1: w3 is 0.5～2: 1;
The ratio w2 of the length w2 of the described B1 of coming into leaves or the D1 that comes into leaves and the length w4 of short leaf A1 or short leaf C1: w4 is 1.5～8: 1.
According to foregoing profiled fibre, wherein:
Described w5: w6 is 1.5～3.5: 1, preferred 1.8～2.5: 1;
Described w2: w1 is 1.5～4.0: 1, preferred 2.0～3.0: 1;
Described w4: w3 is 0.8～1.8: 1, preferred 1.3～1.8: 1;
Described w2: w4 is 2.0～5.0: 1, preferred 2.5～3.5: 1.
According to foregoing profiled fibre, wherein: the line density of described profiled fibre is 0.5～4.0dpf, preferred 0.5～1.5dpf.
For realizing second purpose of the present invention, the present invention adopts following technical scheme:
The spinnerets that a kind of profiled fibre spinning is used, wherein: the spinneret orifice of described spinnerets is long cross, link to each other with the upper base of D that come into leaves with the B that comes into leaves respectively with short leaf A and the minimum external trapezoidal T of short leaf C, form a rectangle E, the height of the minimum external trapezoidal T of each leaf is 1.1～8: 1 with the ratio of upper base, the ratio of height and the height of the minimum external trapezoidal T of short leaf A or short leaf C of minimum external trapezoidal T of the B or the D that comes into leaves of coming into leaves is 1.2～8: 1, the waist of the minimum external trapezoidal T of each leaf and the angle of upper base are 45～89 °, the outline line ab line of leaf, the ah line, the hc line, the fc line, the bd line, de line and gf line are straight line, in the conic section one or more, one section or several sections and in the external trapezoidal T of minimum, be formed by connecting, and each single impeller profile has more than one slope or radius of curvature.
Further, according to foregoing spinnerets, wherein, the height of the minimum external trapezoidal T of short leaf A or short leaf C is 1.1～2.2: 1 with the ratio of upper base, preferred 1.3～1.8: 1; The ratio of height and upper base of minimum external trapezoidal T of the B or the D that comes into leaves of coming into leaves is 1.5～6.5: 1, preferred 3.5～6: 1; The ratio of height and the height of the minimum external trapezoidal T of short leaf A or short leaf C of minimum external trapezoidal T of the B or the D that comes into leaves of coming into leaves is 1.5～8: 1, preferred 2.5～4.5: 1; The waist of the minimum external trapezoidal T of short leaf A or short leaf C and the angle of upper base are 55 °～88 ° angles, preferred 65 °～75 °; The come into leaves waist of minimum external trapezoidal T of the B or the D that comes into leaves and the angle of upper base is 65 °～85 ° angles, preferred 75 °～85 °.
Further, according to foregoing spinnerets, wherein, outline line ab line, hc line, de line and the gf line of leaf respectively is a kind of among the straight line collection y=A1+B1*x, and ah line, bd line and cf line are respectively the curve that seamlessly transits.
Perhaps, the outline line ab line of leaf, hc line respectively are two kinds among the straight line collection y=A2+B2*x, respectively at an a " and some a ' locate to connect to form, de line and gf line respectively are a kind of among the straight line collection y=A3+B3*x, ah line, bd line and cf line are respectively the curve that seamlessly transits.
Perhaps, outline line ab line, ah line, hc line, de line, fg line, fc line and the bd line of leaf respectively are conic section circle line collection (x-E1)
2+ (y-E2)
2=E3
2In one or more, one section or several sections smooth connections form, radius of circle is 0.01mm to 1mm, and each single impeller profile has more than one radius of curvature.
Also can be, outline line ab line, ah line, hc line, de line, fg line, fc line and the bd line of leaf respectively be among conic section ellipse collection (x-F1) 2/F22+ (y-F3) 2/F42=1 one or more, one section or several sections smooth connections form.
For realizing the 3rd purpose of the present invention, the present invention adopts following technical scheme:
A kind of preparation method of profiled fibre, this method comprises high-temperature fusion, screw rod is extruded with the spinnerets ejection or is comprised melt polymerization, pipeline is carried and the spinnerets ejection, wherein: the spinneret orifice of described spinnerets is long cross, link to each other with the upper base of D that come into leaves with the B that comes into leaves respectively with short leaf A and the minimum external trapezoidal T of short leaf C, form a rectangle E, the height of the minimum external trapezoidal T of each leaf is 1.1～8: 1 with the ratio of upper base, the ratio of height and the height of the minimum external trapezoidal T of short leaf A or short leaf C of minimum external trapezoidal T of the B or the D that comes into leaves of coming into leaves is 1.2～8: 1, the waist of the minimum external trapezoidal T of each leaf and the angle of upper base are 45～89 °, the outline line ab line of leaf, the ah line, the hc line, the fc line, the bd line, de line and gf line are straight line, in the conic section one or more, one section or several sections and in the external trapezoidal T of minimum, be formed by connecting, and each single impeller profile has more than one slope or radius of curvature.
Preparation method provided by the present invention can prepare pre-oriented yarn POY, under 265～300 ℃ of temperature, preferred 275～295 ℃ condition, melt extrude, spinning plate surface is 0～20cm, preferred 0.5～10cm apart from the distance of blowing window, and winding speed is 2200～3800m/min, preferred 2500～3500m/min;
Preparation method provided by the present invention also can prepare staple fibre, melt extrudes spinning speed 1000～2500m/min under the condition of 265～300 ℃ of temperature.
Preparation method provided by the present invention also can prepare fullly drawn yarn (FDY) FDY, at spinning speed 500～2000m/min, carries out under the condition of draw speed 2000～8000m/min.
Preparation method provided by the present invention also can prepare draw textured yarn (DTY) DTY, and process velocity 350～1200m/min, draw ratio 1.3～1.8, D/Y carry out than 1.5～1.9, under the condition of 150～200 ℃ of distortion oven temperature, degree, 120～180 ℃ of heat-setting box temperature.
Preparation method provided by the present invention can also prepare and has fiber antibiotic or uvioresistant or anti-static function, and that preferred for preparation has simultaneously is antibiotic, the fiber of at least two kinds of functions in uvioresistant and the anti-static function.
Below be detailed description of the present invention:
On the one hand, the invention provides a kind of profiled fibre, wherein:
The cross section of described profiled fibre is axisymmetric long cross roughly, is divided into the B1 that comes into leaves, the D1 that comes into leaves, short leaf A1 and four leaves of short leaf C1;
The described B1 of coming into leaves and the D1 that comes into leaves all have the interlude H of one section width constant and the narrow slightly terminal R of leaf, and both length ratio w5: w6 are 1～5: 1;
The ratio w2 of the length w2 of the described B1 of coming into leaves or the D1 that comes into leaves and the width w1 of the come into leaves B1 or the D1 that comes into leaves: w1 is 1.1～5: 1;
The length w4 of described short leaf A1 or weak point leaf C1 and the ratio w4 of the widest part width w3 of short leaf A1 or short leaf C1: w3 is 0.5～2: 1;
The ratio w2 of the length w2 of the described B1 of coming into leaves or the D1 that comes into leaves and the length w4 of short leaf A1 or short leaf C1: w4 is 1.5～8: 1.
Compare than prior art, profiled fibre provided by the present invention has novel section feature, as shown in Figure 1, the groove of fiber surface can produce the capillary channel that helps siphon more, the liquid that can make similar sweat makes the dry place of guiding fluid along the capillary channel transmission, increases the specific area of liquid simultaneously, thereby the accelerating liquid evaporation reaches quick-drying effect.
On the other hand, the invention provides the spinnerets that a kind of profiled fibre spinning is used, wherein: the spinneret orifice of described spinnerets is long cross, link to each other with the upper base of D that come into leaves with the B that comes into leaves respectively with short leaf A and the minimum external trapezoidal T of short leaf C, form a rectangle E, the height of the minimum external trapezoidal T of each leaf is 1.1～8: 1 with the ratio of upper base, the ratio of height and the height of the minimum external trapezoidal T of short leaf A or short leaf C of minimum external trapezoidal T of the B or the D that comes into leaves of coming into leaves is 1.2～8: 1, the waist of the minimum external trapezoidal T of each leaf and the angle of upper base are 45～89 °, the outline line ab line of leaf, the ah line, the hc line, the fc line, the bd line, de line and gf line are straight line, in the conic section one or more, one section or several sections and in the external trapezoidal T of minimum, be formed by connecting, and each single impeller profile has more than one slope or radius of curvature.
Further, according to foregoing spinnerets, wherein, the height of the minimum external trapezoidal T of short leaf A or short leaf C is 1.1～2.2: 1 with the ratio of upper base, preferred 1.3～8: 1; The ratio of height and upper base of minimum external trapezoidal T of the B or the D that comes into leaves of coming into leaves is 1.5～6.5: 1, preferred 3.5～6: 1; The ratio of height and the height of the minimum external trapezoidal T of short leaf A or short leaf C of minimum external trapezoidal T of the B or the D that comes into leaves of coming into leaves is 1.5～8: 1, preferred 2.5～4.5: 1; The waist of the minimum external trapezoidal T of short leaf A or short leaf C and the angle of upper base are 55 °～88 ° angles, preferred 65 °～75 °; The come into leaves waist of minimum external trapezoidal T of the B or the D that comes into leaves and the angle of upper base is 65 °～85 ° angles, preferred 75 °～85 °.
Further, according to foregoing spinnerets, wherein, outline line ab line, hc line, de line and the gf line of leaf respectively is a kind of among the straight line collection y=A1+B1*x, ah line, bd line and cf line are respectively with level and smooth curve transition, the outline line ab line, hc line, de line and the gf line that are leaf link together by level and smooth curve ah line, bd line and the transition of cf line, as shown in Figure 2 respectively for one section on the straight line;
Perhaps, the outline line ab line of leaf, hc line respectively are two kinds among the straight line collection y=A2+B2*x, respectively at an a " and some a ' locate to connect to form; de line and gf line respectively are a kind of among the straight line collection y=A3+B3*x; ah line, bd line and cf line are respectively the curve that seamlessly transits, that is, as shown in Figure 3;
Perhaps, outline line ab line, ah line, hc line, de line, fg line, fc line and the bd line of leaf respectively are conic section circle line collection (x-E1)
2+ (y-E2)
2=E3
2In one or more, one section or several sections smooth connections form, radius of circle is 0.01mm to 1mm, and each single impeller profile has more than one radius of curvature, as shown in Figure 4;
Also can be, outline line ab line, ah line, hc line, de line, fg line, fc line and the bd line of leaf respectively be among conic section ellipse collection (x-F1) 2/F22+ (y-F3) 2/F42=1 one or more, one section or several sections smooth connections form, as shown in Figure 5.
Spinnerets than prior art is compared, the spinneret orifice shape novelty of spinnerets of the present invention, the design considerations science, be easy to batch machining, cost is low, adopt the prepared fiber of this spinnerets to have novel section feature, moisture absorbing and sweat releasing performance preferably, can be by the accurate controlling fiber section feature of adjusting of spinning technique, prepare the thin dawn chemical fibre dimension of 0.5dpf to 4dpf, applicable to the spinning of specific functionality master batch, prepare the chemical fibre dimension of thin dawn of odd-shaped cross section that integrates antibiotic, uvioresistant, anti-static function.
The hole count that is used for the spinnerets of long filament processing provided by the present invention can be hole, 72 hole to 288.
The hole count that is used for the spinnerets of short fiber processing provided by the present invention can be hole, 2000 hole to 8000.
Preferably, the hole count that is used for the spinnerets of short fiber processing provided by the present invention can be hole, 3000 hole to 6000.
The blowing mode of spinnerets of the present invention can be lateral blowing, outer shroud blowing or the blowing of interior ring, preferably outer shroud blowing.
Another aspect of the present invention provides a kind of preparation method of profiled fibre, this method comprises high-temperature fusion, screw rod is extruded with the spinnerets ejection or is comprised melt polymerization, pipeline is carried and the spinnerets ejection, wherein: the spinneret orifice of described spinnerets is long cross, link to each other with the upper base of D that come into leaves with the B that comes into leaves respectively with short leaf A and the minimum external trapezoidal T of short leaf C, form a rectangle E, the height of the minimum external trapezoidal T of each leaf is 1.1～8: 1 with the ratio of upper base, the ratio of height and the height of the minimum external trapezoidal T of short leaf A or short leaf C of minimum external trapezoidal T of the B or the D that comes into leaves of coming into leaves is 1.2～8: 1, the waist of the minimum external trapezoidal T of each leaf and the angle of upper base are 45～89 °, the outline line ab line of leaf, the ah line, the hc line, the fc line, the bd line, de line and gf line are straight line, in the conic section one or more, one section or several sections and in the external trapezoidal T of minimum, be formed by connecting, and each single impeller profile has more than one slope or radius of curvature.
The invention provides described preparation method and can prepare pre-oriented yarn POY, staple fibre, fullly drawn yarn (FDY) FDY or draw textured yarn (DTY) DTY, also can prepare and have fiber antibiotic or uvioresistant or anti-static function, that preferred for preparation has simultaneously is antibiotic, the fiber of at least two kinds of functions in uvioresistant and the anti-static function.
When adopting method of the present invention to prepare pre-oriented yarn POY, described preparation method melt extrudes under 265～300 ℃ of temperature, preferred 275～295 ℃ condition, spinning plate surface is 0～20cm, preferred 0.5～10cm apart from the distance of blowing window, and winding speed is 2200～3800m/min, preferred 2500～3500m/min;
When adopting method of the present invention to prepare staple fibre, described preparation method melt extrudes under the condition of 265～300 ℃ of temperature, spinning speed 1000～2500m/min.
When adopting method of the present invention to prepare fullly drawn yarn (FDY) FDY, described preparation method carries out under the condition of draw speed 2000～8000m/min at spinning speed 500～2000m/min.
When adopting method of the present invention to prepare draw textured yarn (DTY) DTY, described preparation method carries out than 1.5～1.9, under the condition of 150～200 ℃ of distortion oven temperature, degree, 120～180 ℃ of heat-setting box temperature at process velocity 350～1200m/min, draw ratio 1.3～1.8, D/Y.
Said method provided by the present invention, adopt spinnerets provided by the invention, by the accurate controlling fiber section feature of the adjusting of spinning technique, prepare the thin dawn chemical fibre dimension of 0.5dpf to 4dpf, applicable to the spinning of specific functionality master batch, prepare the chemical fibre dimension of thin dawn of odd-shaped cross section that integrates antibiotic, uvioresistant, anti-static function.
Compared with prior art, the present invention has following advantage:
1) the long filament cross section of profiled fibre of the present invention and long filament integral body have novelty.Fabric integer is the odd-shaped cross section of collection novelty, the monofilament linear density of thin dawnization, and antibiotic, uvioresistant, anlistatig function are in the fiber of one.
2) the spinneret orifice shape of spinnerets of the present invention has novelty.Spinneret orifice shaped design novelty is easy to processing, can prepare above-mentioned thin dawn profiled filament, and adoptable spinnerets profile, pass is arranged and the scope of guide hole size is wide, the suitable production in enormous quantities in enormous quantities.
3) the present invention has developed and can cooperate above-mentioned spinneret orifice, spinnerets to prepare the optimization spinning process condition of above-mentioned fiber, has related novelty.By the variation of spinning process condition, can accurately control fine denier filament section feature and fibre property.
4) utilize the groove of fiber surface of the present invention and rationally piling up, produce the capillary channel that helps siphon more, the liquid that can make similar sweat is along the capillary channel transmission, make the dry place of guiding fluid, increase the specific area of liquid simultaneously, thereby the accelerating liquid evaporation reaches quick-drying effect.Increase the groove number that volume is piled up by specific area and unit after the thin dawnization, promoted whole moisture absorbing and sweat releasing efficient, improved other wearability of fabric simultaneously.As be used for wearing fabric, and sweat is also volatilized by the outer surface that capillary is transferred to fabric rapidly, it is dry and comfortable comfortable to remain human body skin, greatly promotes the comfort of human body, can be widely used in linings next to the shin such as motion dress ornament, sportswear, underwear.In addition, given also that fiber is antibiotic, uvioresistant, anlistatig function, had higher use value and social value.Spinneret orifice is easy to processing, and suitable production in enormous quantities the in enormous quantities, cost is low.To spinning equipment and technology require lowly, can in the process conditions scope of broad, prepare the fiber of better cross section effect and performance.
Description of drawings
Fig. 1 is a kind of thin dawn profiled filament cross sectional representation of the present invention.
Fig. 2 is first a kind thin dawn abnormity spinneret orifice cross sectional representation of the present invention.
Fig. 3 is second a kind thin dawn abnormity spinneret orifice cross sectional representation of the present invention.
Fig. 4 is the third thin dawn abnormity spinneret orifice cross sectional representation of the present invention.
Fig. 5 is the 4th a kind thin dawn abnormity spinneret orifice cross sectional representation of the present invention.
The specific embodiment
Below be the specific embodiment of the present invention, described embodiment is in order to further describe the present invention, rather than restriction the present invention.
Embodiment 1
The spinneret orifice that adopts is of a size of the data shown in the table 1a.Adopt the PET section of intrinsic viscosity 0.680dl/g, the spinning draft apparatus adopts common single screw rod melt spinning machine and common hot-rolling drawing machine, and spinning technology parameter sees Table 1b, and the draft process parameter sees Table 1c.The performance of fiber is as table 1d.Spinneret orifice and spinning technique have all adopted the condition in the invention, and fiber shape and performance have reached the condition in the invention.
The spinneret orifice size of table 1a. embodiment 1
| Project | Parameter |
| The height of the minimum external trapezoidal T of leaf A (C) and the ratio of upper base | ??1.3 |
| The height of the minimum external trapezoidal T of leaf B (D) and the ratio of upper base | ??4.5 |
| The ratio of the height of the minimum external trapezoidal T of leaf B (D) and leaf A (C) | ??3.5 |
| The waist of the minimum external trapezoidal T of leaf A (C) and the angle of upper base | ??75° |
| The waist of the minimum external trapezoidal T of leaf B (D) and the angle of upper base | ??85° |
| Ab line, hc line, de line, fg line | One section straightway |
| Bd line, fg line | Circular arc, radius 0.02mm |
| The upper base of the minimum external trapezoidal T of leaf A (C) | ??0.12mm |
The spinning technology parameter of table 1b. embodiment 1
| Condition | Parameter |
| Spinning temperature ℃ | ??282 |
| Spinning speed m/min | ??3000 |
| The spinnerets hole count | ??96 |
| The blowing mode | Outer shroud blows |
| Cold air blast velocity m/s | ??0.8 |
| Spinning plate surface is apart from the distance c m of blowing window | ??3 |
The draft process parameter of table 1c. embodiment 1
The performance of table 1d. embodiment 1 drafted fibre
| Index | The result |
| Line density/dtex | ??95.3 |
| Intensity/cN/dtex | ??3.15 |
| Elongation/% | ??22.18 |
| ??w5/w6 | ??2.1 |
| ??w2/w1 | ??2.56 |
| ??w3/w4 | ??1.4 |
| ??w2/w4 | ??3 |
| Antibiotic | Be |
| Uvioresistant | Be |
| Antistatic | Be |
Embodiment 2
The spinneret orifice that adopts is of a size of the data shown in the table 2a.Adopt the PET section of intrinsic viscosity 0.668dl/g, the spinning draft apparatus adopts common single screw rod melt spinning machine and common hot-rolling drawing machine, and spinning technology parameter sees Table 2b, and the draft process parameter sees Table 2c.The performance of fiber is as table 2d.Spinneret orifice and spinning technique have all adopted the condition in the invention, and fiber shape and performance have reached the condition in the invention.
The spinneret orifice size of table 2a. embodiment 2
| Project | Parameter |
| The height of the minimum external trapezoidal T of leaf A (C) and the ratio of upper base | ??1.5 |
| The height of the minimum external trapezoidal T of leaf B (D) and the ratio of upper base | ??3.6 |
| The ratio of the height of the minimum external trapezoidal T of leaf B (D) and leaf A (C) | ??2.8 |
| The waist of the minimum external trapezoidal T of leaf A (C) and the angle of upper base | ??72° |
| The waist of the minimum external trapezoidal T of leaf B (D) and the angle of upper base | ??83° |
| Ab line, hc line | Two sections straightways |
| Project | Parameter |
| De line, fg line | One section straightway |
| Bd line, ah line | Circular arc, radius 0.005mm |
| The upper base of the minimum external trapezoidal T of leaf A (C) | ??0.08mm |
The spinning technology parameter of table 2b. embodiment 2
| Condition | Parameter |
| Spinning temperature ℃ | ??283 |
| Spinning speed m/min | ??3000 |
| The spinnerets hole count | ??96 |
| The blowing mode | Outer shroud blows |
| Cold air blast velocity m/s | ??0.6 |
| Spinning plate surface is apart from the distance c m of blowing window | ??2.5 |
The draft process parameter of table 2c. embodiment 2
The performance of table 2d. embodiment 2 drafted fibres
| Index | The result |
| Line density/dtex | ??75.6 |
| Intensity/cN/dtex | ??3.08 |
| Elongation/% | ??23.73 |
| ??w5/w6 | ??2.1 |
| ??w2/w1 | ??2.4 |
| Index | The result |
| ??w3/w4 | ??1.5 |
| ??w2/w4 | ??2.7 |
| Antibiotic | Be |
| Uvioresistant | Be |
| Antistatic | Be |
Embodiment 3
The spinneret orifice that adopts is of a size of the data shown in the table 3a.Adopt the PET section of intrinsic viscosity 0.665dl/g, the spinning draft apparatus adopts common single screw rod melt spinning machine and common hot-rolling drawing machine, and spinning technology parameter sees Table 3b, and the draft process parameter sees Table 3c.The performance of fiber is as table 3d.Spinneret orifice and spinning technique have all adopted the condition in the invention, and fiber shape and performance have reached the condition in the invention.
The spinneret orifice size of table 3a. embodiment 3
The spinning technology parameter of table 3b. embodiment 3
| Condition | Parameter |
| Spinning temperature ℃ | ??281 |
| Spinning speed m/min | ??3000 |
| The spinnerets hole count | ??96 |
| The blowing mode | Outer shroud blows |
| Condition | Parameter |
| Cold air blast velocity m/s | ??0.5 |
| Spinning plate surface is apart from the distance c m of blowing window | ??2 |
The draft process parameter of table 3c. embodiment 3
The performance of table 3d. embodiment 3 drafted fibres
| Index | The result |
| Line density/dtex | ??50.2 |
| Intensity/cN/dtex | ??3.12 |
| Elongation/% | ??20.73 |
| ??w5/w6 | ??2.3 |
| ??w2/w1 | ??2.7 |
| ??w3/w4 | ??1.35 |
| ??w2/w4 | ??3.0 |
| Antibiotic | Be |
| Uvioresistant | Be |
| Antistatic | Be |
Embodiment 4
The spinneret orifice that adopts is of a size of the data shown in the table 4a.Adopt the PET section of intrinsic viscosity 0.670dl/g, the spinning draft apparatus adopts common single screw rod melt spinning machine and common hot-rolling drawing machine, and spinning technology parameter sees Table 4b, and the draft process parameter sees Table 4c.The performance of fiber is as table 4d.Spinneret orifice and spinning technique have all adopted the condition in the invention, and fiber shape and performance have reached the condition in the invention.
The spinneret orifice size of table 4a. embodiment 4
| Project | Parameter |
| The height of the minimum external trapezoidal T of leaf A (C) and the ratio of upper base | ??8 |
| The height of the minimum external trapezoidal T of leaf B (D) and the ratio of upper base | ??8 |
| The ratio of the height of the minimum external trapezoidal T of leaf B (D) and leaf A (C) | ??2 |
| The waist of the minimum external trapezoidal T of leaf A (C) and the angle of upper base | ??69° |
| The waist of the minimum external trapezoidal T of leaf B (D) and the angle of upper base | ??81° |
| Ab line, hc line, de line, fg line, bd line, ah line | One section straightway |
| The upper base of the minimum external trapezoidal T of leaf A (C) | ??0.1mm |
The spinning technology parameter of table 4b. embodiment 4
| Condition | Parameter |
| Spinning temperature ℃ | ??290 |
| Spinning speed m/min | ??3200 |
| The spinnerets hole count | ??72 |
| The blowing mode | Outer shroud blows |
| Cold air blast velocity m/s | ??0.6 |
| Spinning plate surface is apart from the distance c m of blowing window | ??0 |
The draft process parameter of table 4c. embodiment 4
The performance of table 4d. embodiment 4 drafted fibres
| Index | The result |
| Line density/dtex | ??83 |
| Intensity/cN/dtex | ??3.06 |
| Index | The result |
| Elongation/% | ??22.52 |
| ??w5/w6 | ??5.0 |
| ??w2/w1 | ??4.8 |
| ??w3/w4 | ??0.55 |
| ??w2/w4 | ??1.8 |
| Antibiotic | Be |
| Uvioresistant | Be |
| Antistatic | Be |
Embodiment 5
The spinneret orifice that adopts is of a size of the data shown in the table 5a.Adopt the PET section of intrinsic viscosity 0.665dl/g, the spinning draft apparatus adopts common single screw rod melt spinning machine and common hot-rolling drawing machine, and spinning technology parameter sees Table 5b, and the draft process parameter sees Table 5c.The performance of fiber is as table 5d.Spinneret orifice and spinning technique have all adopted the condition in the invention, and fiber shape and performance have reached the condition in the invention.
The spinneret orifice size of table 5a. embodiment 5
| Project | Parameter |
| The height of the minimum external trapezoidal T of leaf A (C) and the ratio of upper base | ??1.1 |
| The height of the minimum external trapezoidal T of leaf B (D) and the ratio of upper base | ??1.1 |
| The ratio of the height of the minimum external trapezoidal T of leaf B (D) and leaf A (C) | ??2 |
| The waist of the minimum external trapezoidal T of leaf A (C) and the angle of upper base | ??75° |
| The waist of the minimum external trapezoidal T of leaf B (D) and the angle of upper base | ??85° |
| Ab line, hc line, de line, fg line, bd line, ah line | One section straightway |
| The upper base of the minimum external trapezoidal T of leaf A (C) | ??0.12mm |
The spinning technology parameter of table 5b. embodiment 5
| Condition | Parameter |
| Spinning temperature ℃ | ??292 |
| Spinning speed m/min | ??3800 |
| The spinnerets hole count | ??72 |
| The blowing mode | Outer shroud blows |
| Cold air blast velocity m/s | ??0.6 |
| Spinning plate surface is apart from the distance c m of blowing window | ??20 |
The draft process parameter of table 5c. embodiment 5
The performance of table 5d. embodiment 5 drafted fibres
| Index | The result |
| Line density/dtex | ??73 |
| Intensity/cN/dtex | ??2.96 |
| Elongation/% | ??20.45 |
| ??w5/w6 | ??1.3 |
| ??w2/w1 | ??1.15 |
| ??w3/w4 | ??0.6 |
| ??w2/w4 | ??1.6 |
| Antibiotic | Be |
| Uvioresistant | Be |
| Antistatic | Be |
Embodiment 6
The spinneret orifice that adopts is of a size of the data shown in the table 6a.Adopt the PET section of intrinsic viscosity 0.665dl/g, the spinning draft apparatus adopts common single screw rod melt spinning machine and common hot-rolling drawing machine, and spinning technology parameter sees Table 6b, and the draft process parameter sees Table 6c.The performance of fiber is as table 6d.Spinneret orifice and spinning technique have all adopted the condition in the invention, and fiber shape and performance have reached the condition in the invention.
The spinneret orifice size of table 6a. embodiment 6
| Project | Parameter |
| The height of the minimum external trapezoidal T of leaf A (C) and the ratio of upper base | ??3 |
| The height of the minimum external trapezoidal T of leaf B (D) and the ratio of upper base | ??2.5 |
| The ratio of the height of the minimum external trapezoidal T of leaf B (D) and leaf A (C) | ??1.2 |
| The waist of the minimum external trapezoidal T of leaf A (C) and the angle of upper base | ??45° |
| The waist of the minimum external trapezoidal T of leaf B (D) and the angle of upper base | ??89° |
| Ab line, hc line, de line, fg line, bd line, ah line | One section straightway |
| The upper base of the minimum external trapezoidal T of leaf A (C) | ??0.15mm |
The spinning technology parameter of table 6b. embodiment 6
| Condition | Parameter |
| Spinning temperature ℃ | ??295 |
| Spinning speed m/min | ??3000 |
| The spinnerets hole count | ??72 |
| The blowing mode | Outer shroud blows |
| Cold air blast velocity m/s | ??0.6 |
| Spinning plate surface is apart from the distance c m of blowing window | ??5 |
The draft process parameter of table 6c. embodiment 6
The performance of table 6d. embodiment 6 drafted fibres
| Index | The result |
| Line density/dtex | ??96 |
| Intensity/cN/dtex | ??2.89 |
| Elongation/% | ??20.16 |
| ??w5/w6 | ??1.5 |
| ??w2/w1 | ??2.5 |
| ??w3/w4 | ??0.65 |
| ??w2/w4 | ??1.5 |
| Antibiotic | Be |
| Uvioresistant | Be |
| Antistatic | Be |
Embodiment 7
The spinneret orifice that adopts is of a size of the data shown in the table 7a.Adopt the PET section of intrinsic viscosity 0.665dl/g, the spinning draft apparatus adopts common single screw rod melt spinning machine and common hot-rolling drawing machine, and spinning technology parameter sees Table 7b, and the draft process parameter sees Table 7c.The performance of fiber is as table 7d.Spinneret orifice and spinning technique have all adopted the condition in the invention, and fiber shape and performance have reached the condition in the invention.
The spinneret orifice size of table 7a. embodiment 7
| Project | Parameter |
| The height of the minimum external trapezoidal T of leaf A (C) and the ratio of upper base | ??2 |
| The height of the minimum external trapezoidal T of leaf B (D) and the ratio of upper base | ??4 |
| The ratio of the height of the minimum external trapezoidal T of leaf B (D) and leaf A (C) | ??8 |
| The waist of the minimum external trapezoidal T of leaf A (C) and the angle of upper base | ??85° |
| The waist of the minimum external trapezoidal T of leaf B (D) and the angle of upper base | ??45° |
| Ab line, hc line, de line, fg line, bd line, ah line | One section straightway |
| The upper base of the minimum external trapezoidal T of leaf A (C) | ??0.1mm |
The spinning technology parameter of table 7b. embodiment 7
| Condition | Parameter |
| Spinning temperature ℃ | ??296 |
| Spinning speed m/min | ??2200 |
| The spinnerets hole count | ??144 |
| The blowing mode | Outer shroud blows |
| Cold air blast velocity m/s | ??0.5 |
| Spinning plate surface is apart from the distance c m of blowing window | ??3 |
The draft process parameter of table 7c. embodiment 7
The performance of table 7d. embodiment 7 drafted fibres
| Index | The result |
| Line density/dtex | ??53 |
| Intensity/cN/dtex | ??3.04 |
| Elongation/% | ??20.68 |
| ??w5/w6 | ??2 |
| ??w2/w1 | ??3 |
| ??w3/w4 | ??1.3 |
| ??w2/w4 | ??6 |
| Antibiotic | Be |
| Uvioresistant | Be |
| Antistatic | Be |
Embodiment 8 (directly spinning plain vanilla POY)
The spinneret orifice that adopts is of a size of the data shown in the table 8a.Adopt PET direct spinning technology equipment, spinning technology parameter sees Table 8b.The performance of POY fiber is as table 8c.Spinneret orifice and spinning technique have all adopted the condition in the invention, and fiber shape and performance have reached the condition in the invention.
The spinneret orifice size of table 8a. embodiment 8
| Project | Parameter |
| The height of the minimum external trapezoidal T of leaf A (C) and the ratio of upper base | ??1.3 |
| The height of the minimum external trapezoidal T of leaf B (D) and the ratio of upper base | ??4.5 |
| The ratio of the height of the minimum external trapezoidal T of leaf B (D) and leaf A (C) | ??3.5 |
| The waist of the minimum external trapezoidal T of leaf A (C) and the angle of upper base | ??75° |
| The waist of the minimum external trapezoidal T of leaf B (D) and the angle of upper base | ??85° |
| Ab line, hc line, de line, fg line | One section straightway |
| Bd line, fg line | Circular arc, radius 0.02mm |
| The upper base of the minimum external trapezoidal T of leaf A (C) | ??0.12mm |
The spinning technology parameter of table 8b. embodiment 8
| Condition | Parameter |
| Spinning temperature ℃ | ??285 |
| Spinning speed m/min | ??2800 |
| The spinnerets hole count | ??72 |
| The blowing mode | Outer shroud blows |
| Cold air blast velocity m/s | ??0.5 |
| Spinning plate surface is apart from the distance c m of blowing window | ??5 |
The performance of POY among the table 8c. embodiment 8
Embodiment 9 (directly having spun additional function)
The spinneret orifice that adopts is of a size of the data shown in the table 9a.Adopt polyester fondant direct spinning technology equipment, function of injecting component on the melt Conveying pipeline carries out spinning behind the high efficiency static mixing arrangement, and spinning technology parameter sees Table 9b.The performance of fiber is as table 9c.Spinneret orifice and spinning technique have all adopted the condition in the invention, and fiber shape and performance have reached the condition in the invention.
The spinneret orifice size of table 9a. embodiment 9
The spinning technology parameter of table 9b. embodiment 9
| Condition | Parameter |
| Spinning temperature ℃ | ??285 |
| Spinning speed m/min | ??2850 |
| The spinnerets hole count | ??72 |
| The blowing mode | Outer shroud blows |
| Cold air blast velocity m/s | ??0.5 |
| Condition | Parameter |
| Spinning plate surface is apart from the distance c m of blowing window | ??3 |
The performance of POY silk among the table 9c. embodiment 9
| Index | The result |
| Line density/dtex | ??105 |
| Intensity/cN/dtex | ??2.03 |
| Elongation/% | ??110.6 |
| ??w5/w6 | ??2.25 |
| ??w2/w1 | ??2.6 |
| ??w3/w4 | ??1.25 |
| ??w2/w4 | ??3.1 |
| Antibiotic | Be |
| Uvioresistant | Be |
| Antistatic | Be |
Embodiment 10 (short fiber is spun in section)
The spinneret orifice that adopts is of a size of the data shown in the table 10a.Adopt the PET section of intrinsic viscosity 0.667dl/g, the spinning draft apparatus adopts common short fiber spinning machine and common short fiber hot-rolling drawing machine, and spinning technology parameter sees Table 10b.The performance of fiber is as table 10c.Spinneret orifice and spinning technique have all adopted the condition in the invention, and fiber shape and performance have reached the condition in the invention.
The spinneret orifice size of table 10a. embodiment 10
| Project | Parameter |
| The height of the minimum external trapezoidal T of leaf A (C) and the ratio of upper base | ??1.5 |
| The height of the minimum external trapezoidal T of leaf B (D) and the ratio of upper base | ??3.6 |
| The ratio of the height of the minimum external trapezoidal T of leaf B (D) and leaf A (C) | ??2.8 |
| Project | Parameter |
| The waist of the minimum external trapezoidal T of leaf A (C) and the angle of upper base | ??72° |
| The waist of the minimum external trapezoidal T of leaf B (D) and the angle of upper base | ??83° |
| Ab line, hc line | Two sections straightways |
| De line, fg line | One section straightway |
| Bd line, ah line | Circular arc, radius 0.005mm |
| The upper base of the minimum external trapezoidal T of leaf A (C) | ??0.08mm |
The spinning technology parameter of table 10b. embodiment 10
| Condition | Parameter |
| Spinning temperature ℃ | ??289 |
| Spinning speed m/min | ??1000 |
| The spinnerets hole count | ??3516 |
| The blowing mode | Outer shroud blows |
| Blow pressure | ??1500 |
| One drafting multiple | ??2.95 |
| Two road drafting multiples | ??1.31 |
The performance of table 10c. embodiment 10 short fibers
| Index | The result |
| Line density/dpf | ??1.5 |
| Intensity/cN/dtex | ??3.21 |
| Elongation/% | ??20.73 |
| ??w5/w6 | ??2.15 |
| Index | The result |
| ??w2/w1 | ??2.35 |
| ??w3/w4 | ??1.52 |
| ??w2/w4 | ??2.55 |
| Antibiotic | Be |
| Uvioresistant | Be |
| Antistatic | Be |
Embodiment 11 (directly spinning short fiber)
The spinneret orifice that adopts is of a size of the data shown in the table 11a.Adopt polyester fondant directly to spin the short fiber technical equipment, spinning technology parameter sees Table 11b.The performance of fiber is as table 11c.Spinneret orifice and spinning technique have all adopted the condition in the invention, and fiber shape and performance have reached the condition in the invention.
The spinneret orifice size of table 11a. embodiment 11
| Project | Parameter |
| The height of the minimum external trapezoidal T of leaf A (C) and the ratio of upper base | ??1.5 |
| The height of the minimum external trapezoidal T of leaf B (D) and the ratio of upper base | ??3.6 |
| The ratio of the height of the minimum external trapezoidal T of leaf B (D) and leaf A (C) | ??2.8 |
| The waist of the minimum external trapezoidal T of leaf A (C) and the angle of upper base | ??72° |
| The waist of the minimum external trapezoidal T of leaf B (D) and the angle of upper base | ??83° |
| Ab line, hc line | Two sections straightways |
| De line, fg line | One section straightway |
| Bd line, ah line | Circular arc, radius 0.005mm |
| The upper base of the minimum external trapezoidal T of leaf A (C) | ??0.08mm |
The spinning technology parameter of table 11b. embodiment 11
| Condition | Parameter |
| Spinning temperature ℃ | ??291 |
| Spinning speed m/min | ??1150 |
| The spinnerets hole count | ??3516 |
| The blowing mode | Outer shroud blows |
| Blow pressure | ??1300 |
| One drafting multiple | ??3.04 |
| Two road drafting multiples | ??1.25 |
The performance of table 11c. embodiment 11 short fibers
| Index | The result |
| Line density/dpf | ??1.56 |
| Intensity/cN/dtex | ??3.11 |
| Elongation/% | ??21.52 |
| ??w5/w6 | ??2.18 |
| ??w2/w1 | ??2.30 |
| ??w3/w4 | ??1.46 |
| ??w2/w4 | ??2.61 |
Embodiment 12 (DTY)
Adopt the POY silk among the embodiment 9, add the bullet deformation processing and prepare DTY.Working process parameter sees Table 12a.The performance of fiber is as table 12b.Fiber shape and performance have reached the condition in the invention.
The working process parameter of table 12a. embodiment 12
| Condition | Parameter |
| Draw ratio | ??1.50 |
| Distortion oven temperature, degree/℃ | ??175 |
| Condition | Parameter |
| The shaping box temperature/℃ | ??140 |
| ??D/Y | ??1.68 |
| Speed/m/min | ??700 |
The performance of DTY among the table 12b. embodiment 12
| Index | The result |
| Line density/dtex | ??71.6 |
| Intensity/cN/dtex | ??3.05 |
| Elongation/% | ??18.98 |
| ??w5/w6 | ??2.23 |
| ??w2/w1 | ??2.62 |
| ??w3/w4 | ??1.31 |
| ??w2/w4 | ??3.15 |
| Antibiotic | Be |
| Uvioresistant | Be |
| Antistatic | Be |
Embodiment 13 (FDY)
The spinneret orifice that adopts is of a size of the data shown in the table 13a.Adopt the PET section of intrinsic viscosity 0.680dl/g, adopt the high speed melt-spinning up-coiler, spinning technology parameter sees Table 13b.The performance of fiber is as table 13c.Spinneret orifice and spinning technique have all adopted the condition in the invention, and fiber shape and performance have reached the condition in the invention.
The spinneret orifice size of table 13a. embodiment 13
| Project | Parameter |
| The height of the minimum external trapezoidal T of leaf A (C) and the ratio of upper base | ??1.3 |
| The height of the minimum external trapezoidal T of leaf B (D) and the ratio of upper base | ??4.5 |
| Project | Parameter |
| The ratio of the height of the minimum external trapezoidal T of leaf B (D) and leaf A (C) | ??3.5 |
| The waist of the minimum external trapezoidal T of leaf A (C) and the angle of upper base | ??75° |
| The waist of the minimum external trapezoidal T of leaf B (D) and the angle of upper base | ??85° |
| Ab line, hc line, de line, fg line | One section straightway |
| Bd line, fg line | Circular arc, radius 0.02mm |
| The upper base of the minimum external trapezoidal T of leaf A (C) | ??0.12mm |
The spinning technology parameter of table 13b. embodiment 13
| Condition | Parameter |
| Spinning temperature/℃ | ??290 |
| Winding speed/m/min | ??4500 |
| Rise a speed/m/min | ??3600 |
| The spinnerets hole count | ??36 |
| Wind-warm syndrome/℃ | ??23 |
| Rheumatism (RH)/% | ??65 |
The performance of FDY among the table 13c. embodiment 13
| Index | The result |
| Line density/dtex | ??75 |
| Intensity/cN/dtex | ??3.05 |
| Elongation/% | ??16.72 |
| ??w5/w6 | ??2.06 |
| ??w2/w1 | ??2.48 |
| Index | The result |
| ??w3/w4 | ??1.51 |
| ??w2/w4 | ??3.16 |
| Antibiotic | Be |
| Uvioresistant | Be |
| Antistatic | Be |
Comparative Examples 1
The spinneret orifice that adopts is of a size of the data shown in the table 1a '.Adopt the PET section of intrinsic viscosity 0.680dl/g, the spinning draft apparatus adopts common single screw rod melt spinning machine and common hot-rolling drawing machine, and spinning technology parameter sees Table 1b ', and the draft process parameter sees Table 1c '.The performance of fiber is as table 1d '.Spinneret orifice has adopted the parameter that is different among the present invention, and other spinning draft process is identical with embodiment 1.
The spinneret orifice size of table 1a ' Comparative Examples 1
| Project | Parameter |
| The height of the minimum external trapezoidal T of leaf A (C) and the ratio of upper base | ??1 |
| The height of the minimum external trapezoidal T of leaf B (D) and the ratio of upper base | ??1 |
| The ratio of the height of the minimum external trapezoidal T of leaf B (D) and leaf A (C) | ??1 |
| The waist of the minimum external trapezoidal T of leaf A (C) and the angle of upper base | ??3° |
| The waist of the minimum external trapezoidal T of leaf B (D) and the angle of upper base | ??3° |
| Ab line, hc line, de line, fg line | One section straightway |
| Bd line, fg line | Circular arc, radius 0.02mm |
| The upper base of the minimum external trapezoidal T of leaf A (C) | ??0.12mm |
The spinning technology parameter of table 1b ' Comparative Examples 1
| Condition | Parameter |
| Spinning temperature ℃ | ??282 |
| Condition | Parameter |
| Spinning speed m/min | ??3000 |
| The spinnerets hole count | ??96 |
| The blowing mode | Outer shroud blows |
| Cold air blast velocity m/s | ??0.8 |
| Spinning plate surface is apart from the distance c m of blowing window | ??3 |
The draft process parameter of table 1c ' Comparative Examples 1
The performance of table 1d ' Comparative Examples 1 drafted fibre
Comparative Examples 2
The spinneret orifice that adopts is of a size of the data that embodiment 2 sees Table 2a '.Adopt the PET section of intrinsic viscosity 0.668dl/g, the spinning draft apparatus adopts common single screw rod melt spinning machine and common hot-rolling drawing machine, and spinning technology parameter sees Table 2b ', and the draft process parameter sees Table 2c '.The performance of fiber is as table 2d '.Spinneret orifice has adopted the parameter among the embodiment 2, and significant change has taken place is 25cm to spinning plate surface apart from the distance of blowing window in the spinning technique, and draft process is identical with embodiment 2.
The spinneret orifice size of table 2a ' Comparative Examples 2
| Project | Parameter |
| The height of the minimum external trapezoidal T of leaf A (C) and the ratio of upper base | ??1.5 |
| The height of the minimum external trapezoidal T of leaf B (D) and the ratio of upper base | ??3.6 |
| Project | Parameter |
| The ratio of the height of the minimum external trapezoidal T of leaf B (D) and leaf A (C) | ??2.8 |
| The waist of the minimum external trapezoidal T of leaf A (C) and the angle of upper base | ??72° |
| The waist of the minimum external trapezoidal T of leaf B (D) and the angle of upper base | ??83° |
| Ab line, hc line | Two sections straightways |
| De line, fg line | One section straightway |
| Bd line, ah line | Circular arc, radius 0.005mm |
| The upper base of the minimum external trapezoidal T of leaf A (C) | ??0.08mm |
The spinning technology parameter of table 2b ' Comparative Examples 2
| Condition | Parameter |
| Spinning temperature ℃ | ??283 |
| Spinning speed m/min | ??3000 |
| The spinnerets hole count | ??96 |
| The blowing mode | Outer shroud blows |
| Cold air blast velocity m/s | ??0.6 |
| Spinning plate surface is apart from the distance c m of blowing window | ??25 |
The draft process parameter of table 2c ' Comparative Examples 2
The performance of table 2d ' Comparative Examples 2 drafted fibres
Comparative Examples 3
The spinneret orifice that adopts is of a size of the data of embodiment 3, sees Table the data shown in the 3a.Adopt the PET section of intrinsic viscosity 0.665dl/g, the spinning draft apparatus adopts common single screw rod melt spinning machine and common hot-rolling drawing machine, and spinning technology parameter sees Table 3b, and the draft process parameter sees Table 3c.The performance of fiber is as table 3d.Spinneret orifice has adopted the design of embodiment 3, and spinning temperature is increased to 320 ℃ in the spinning technique, and other technology has all adopted the condition of embodiment 3.
The spinneret orifice size of table 3a ' Comparative Examples 3
The spinning technology parameter of table 3b ' Comparative Examples 3
| Condition | Parameter |
| Spinning temperature ℃ | ??320 |
| Spinning speed m/min | ??3000 |
| The spinnerets hole count | ??96 |
| The blowing mode | Outer shroud blows |
| Condition | Parameter |
| Cold air blast velocity m/s | ??0.5 |
| Spinning plate surface is apart from the distance c m of blowing window | ??2 |
The draft process parameter of table 3c ' Comparative Examples 3
The performance of table 3d ' Comparative Examples 3 drafted fibres
Claims (10)
1. profiled fibre is characterized in that:
The cross section of described profiled fibre is axisymmetric long cross roughly, is divided into the B1 that comes into leaves, the D1 that comes into leaves, short leaf A1 and four leaves of short leaf C1;
The described B1 of coming into leaves and the D1 that comes into leaves all have the interlude H of one section width constant and the narrow slightly terminal R of leaf, and both length ratio w5: w6 are 1～5: 1;
The ratio w2 of the length w2 of the described B1 of coming into leaves or the D1 that comes into leaves and the width w1 of the come into leaves B1 or the D1 that comes into leaves: w1 is 1.1～5: 1;
The length w4 of described short leaf A1 or weak point leaf C1 and the ratio w4 of the widest part width w3 of short leaf A1 or short leaf C1: w3 is 0.5～2: 1;
The ratio w2 of the length w2 of the described B1 of coming into leaves or the D1 that comes into leaves and the length w4 of short leaf A1 or short leaf C1: w4 is 1.5～8: 1.
2. profiled fibre according to claim 1 is characterized in that:
Described w5: w6 is 1.5～3.5: 1, preferred 1.8～2.5: 1;
Described w2: w1 is 1.5～4.0: 1, preferred 2.0～3.0: 1;
Described w4: w3 is 0.8～1.8: 1, preferred 1.3～1.8: 1;
Described w2: w4 is 2.0～5.0: 1, preferred 2.5～3.5: 1.
3. profiled fibre according to claim 1 and 2 is characterized in that: the line density of described profiled fibre is 0.5～4.0dpf, preferred 0.5～1.5dpf.
4. spinnerets that the described profiled fibre spinning of claim 1 is used, it is characterized in that: the spinneret orifice of described spinnerets is long cross, link to each other with the upper base of D that come into leaves with the B that comes into leaves respectively with short leaf A and the minimum external trapezoidal T of short leaf C, form a rectangle E, the height of the minimum external trapezoidal T of each leaf is 1.1～8: 1 with the ratio of upper base, the ratio of height and the height of the minimum external trapezoidal T of short leaf A or short leaf C of minimum external trapezoidal T of the B or the D that comes into leaves of coming into leaves is 1.2～8: 1, the waist of the minimum external trapezoidal T of each leaf and the angle of upper base are 45～89 °, the outline line ab line of leaf, the ah line, the hc line, the fc line, the bd line, de line and gf line are straight line, in the conic section one or more, one section or several sections and in the external trapezoidal T of minimum, be formed by connecting, and each single impeller profile has more than one slope or radius of curvature.
5. spinnerets according to claim 4 is characterized in that: the height of the minimum external trapezoidal T of short leaf A or short leaf C is 1.1～2.2: 1 with the ratio of upper base, preferred 1.3～1.8: 1; The ratio of height and upper base of minimum external trapezoidal T of the B or the D that comes into leaves of coming into leaves is 1.5～6.5: 1, preferred 3.5～6: 1; The ratio of height and the height of the minimum external trapezoidal T of short leaf A or short leaf C of minimum external trapezoidal T of the B or the D that comes into leaves of coming into leaves is 1.5～8: 1, preferred 2.5～4.5: 1; The waist of the minimum external trapezoidal T of short leaf A or short leaf C and the angle of upper base are 55 °～88 ° angles, preferred 65 °～75 °; The come into leaves waist of minimum external trapezoidal T of the B or the D that comes into leaves and the angle of upper base is 65 °～85 ° angles, preferred 75 °～85 °.
6. according to claim 4 or 5 described spinneretss, it is characterized in that:
Outline line ab line, hc line, de line and the gf line of leaf respectively is a kind of among the straight line collection y=A1+B1*x, and ah line, bd line and cf line are respectively the curve that seamlessly transits;
Perhaps the outline line ab line of leaf, hc line respectively are among the straight line collection y=A2+B2*x two kinds, respectively at an a " and some a ' locate to connect to form, de line and gf line respectively are a kind of among the straight line collection y=A3+B3*x, ah line, bd line and cf line are respectively the curve that seamlessly transits;
Perhaps outline line ab line, ah line, hc line, de line, fg line, fc line and the bd line of leaf respectively are conic section circle line collection (x-E1)
2+ (y-E2)
2=E3
2In one or more, one section or several sections smooth connections form, radius of circle is 0.01mm to 1mm, and each single impeller profile has more than one radius of curvature;
Perhaps outline line ab line, ah line, hc line, de line, fg line, fc line and the bd line of leaf respectively are conic section ellipse collection (x-F1)
2/ F2
2+ (y-F3)
2/ F4
2In=1 one or more, one section or several sections smooth connections compositions.
7. the preparation method of the described profiled fibre of claim 1, this method comprises high-temperature fusion, screw rod is extruded with the spinnerets ejection or is comprised melt polymerization, pipeline is carried and the spinnerets ejection, it is characterized in that: the spinneret orifice of described spinnerets is long cross, link to each other with the upper base of D that come into leaves with the B that comes into leaves respectively with short leaf A and the minimum external trapezoidal T of short leaf C, form a rectangle E, the height of the minimum external trapezoidal T of each leaf is 1.1～8: 1 with the ratio of upper base, the ratio of height and the height of the minimum external trapezoidal T of short leaf A or short leaf C of minimum external trapezoidal T of the B or the D that comes into leaves of coming into leaves is 1.2～8: 1, the waist of the minimum external trapezoidal T of each leaf and the angle of upper base are 45～89 °, the outline line ab line of leaf, the ah line, the hc line, the fc line, the bd line, de line and gf line are straight line, in the conic section one or more, one section or several sections and in the external trapezoidal T of minimum, be formed by connecting, and each single impeller profile has more than one slope or radius of curvature.
8. preparation method according to claim 7 is characterized in that: the application of described preparation method in preparation pre-oriented yarn POY, staple fibre, fullly drawn yarn (FDY) FDY or draw textured yarn (DTY) DTY.
9. preparation method according to claim 8 is characterized in that:
When preparation pre-oriented yarn POY, described preparation method melt extrudes under 265～300 ℃ of temperature, preferred 275～295 ℃ condition, spinning plate surface is 0～20cm, preferred 0.5～10cm apart from the distance of blowing window, and winding speed is 2200～3800m/min, preferred 2500～3500m/min;
When the preparation staple fibre, described preparation method melt extrudes under the condition of 265～300 ℃ of temperature, spinning speed 1000～2500m/min;
When preparation fullly drawn yarn (FDY) FDY, described preparation method carries out under the condition of draw speed 2000～8000m/min at spinning speed 500～2000m/min;
When preparation draw textured yarn (DTY) DTY, described preparation method process velocity 350～1200m/min, draw ratio 1.3～1.8, D/Y than 1.5～1.9, be out of shape under the condition of 150～200 ℃ of oven temperature, degree, 120～180 ℃ of heat-setting box temperature and carry out.
10. preparation method according to claim 7, it is characterized in that: described preparation method has application in the fiber of antibiotic or uvioresistant or anti-static function in preparation, preferably has application in the fiber of at least two kinds of functions in antibiotic, uvioresistant and the anti-static function simultaneously in preparation.
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| CN 200910079921 CN101831720B (en) | 2009-03-13 | 2009-03-13 | Profiled fiber and spinneret plate and preparation method thereof |
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|---|---|---|---|
| CN 200910079921 CN101831720B (en) | 2009-03-13 | 2009-03-13 | Profiled fiber and spinneret plate and preparation method thereof |
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| CN103866405A (en) * | 2012-12-18 | 2014-06-18 | 中国纺织科学研究院 | High-orifice-density profiled filaments and preparation method thereof |
| CN103866411A (en) * | 2012-12-13 | 2014-06-18 | 上海启鹏工程材料科技有限公司 | Spinning component |
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| US4001369A (en) * | 1976-03-04 | 1977-01-04 | E. I. Du Pont De Nemours And Company | Process for cospinning trilobal filaments |
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| CN201165570Y (en) * | 2008-03-06 | 2008-12-17 | 上海德福伦化纤有限公司 | Spinneret plate of fine denier trilobal filament hole |
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| CN103866411A (en) * | 2012-12-13 | 2014-06-18 | 上海启鹏工程材料科技有限公司 | Spinning component |
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