CN112593299A - Method for manufacturing moisture-conducting, temperature-conducting and wicking polyester fibers - Google Patents
Method for manufacturing moisture-conducting, temperature-conducting and wicking polyester fibers Download PDFInfo
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- CN112593299A CN112593299A CN202011420492.1A CN202011420492A CN112593299A CN 112593299 A CN112593299 A CN 112593299A CN 202011420492 A CN202011420492 A CN 202011420492A CN 112593299 A CN112593299 A CN 112593299A
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D11/00—Other features of manufacture
- D01D11/02—Opening bundles to space the threads or filaments from one another
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
- D01D5/092—Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D7/00—Collecting the newly-spun products
Abstract
The invention relates to a method for manufacturing moisture-conducting, temperature-conducting and wicking polyester fibers, which adopts a multi-arc cross-shaped spinneret orifice; the multi-arc cross shape comprises four leaves, namely a leaf I, a leaf II, a leaf III and a leaf IV; the leaf I is enclosed by two line segments and a major arc, the two line segments are parallel to each other, two ends of the two line segments are flush, one end of each line segment is an m end, the other end of each line segment is an n end, and the m ends of the two line segments are connected through the major arc; setting a straight line passing through the center of a circle corresponding to the major arc and arranged at equal intervals with the two line segments as a line L, and setting a point on the line L, which is positioned outside the leaf I and is close to the n end, as a point O; the leaves II, III and IV are respectively formed by rotating the leaf I around the point O by 90 degrees, 180 degrees and 270 degrees; the process flow comprises a winding procedure; the comb-shaped wire separator is arranged in the winding machine, and the ceramic part of the comb-shaped wire separator is a '. alpha' -shaped ceramic part. The invention effectively solves the problems that a large amount of broken filaments and broken filaments are generated during spinning in the prior art and tows are easy to jump out when passing through a comb-shaped filament divider ceramic piece.
Description
Technical Field
The invention belongs to the technical field of functional polyester fibers, and relates to a manufacturing method of a moisture-conducting, temperature-conducting and wicking polyester fiber.
Background
In the chemical fiber industry, the latter product of the cross-shaped profiled fiber has very good moisture absorption and sweat releasing performance, wherein the moisture absorption and sweat releasing are realized by utilizing a physical method to generate micro grooves with capillary effect on the surface of the polyester fiber, and the sweat is rapidly transferred to the surface of the fabric and rapidly volatilized under the actions of wicking, diffusion, transmission and the like, so that the dry and comfortable feeling of the skin of a human body is kept. However, the production process of the cross-shaped profiled fiber in the market basically adopts a spinneret plate with a common cross-shaped spinneret orifice, and can bring a lot of adverse effects to the subsequent processing. When such spinneret holes are used for spinning, a large amount of broken filaments and broken filaments are generated in the spinning process, particularly in the drawing process, which is not favorable for the improvement of production and quality, and the profile degree of the obtained fiber is low.
In the production of filaments, before passing through a godet, a certain tension is required for bundling and separating the filament bundle, and the process is mainly carried out by a component called a comb-shaped filament separator which is composed of 8 to 12 ceramic pieces and a metal plate. The existing comb-shaped yarn separator ceramic piece is a U-shaped ceramic piece, and is characterized by being simple in structure and easy to separate yarns, and having the defects of being weak in structure, easy to damage, poor in constraint on a tow, and easy to generate yarn jumping phenomenon during spinning yarn floating and winding switching, so that the conditions of yarn separation error, yarn breakage and the like are caused.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a method for manufacturing moisture and heat conducting wicking polyester fibers.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a method for manufacturing moisture and temperature conducting wicking polyester fiber adopts a multi-arc cross-shaped spinneret orifice; the multi-arc cross shape comprises four leaves, namely a leaf I, a leaf II, a leaf III and a leaf IV; the leaf I is enclosed by two line segments and a major arc, the two line segments are parallel to each other, two ends of the two line segments are flush, one end of each line segment is an m end, the other end of each line segment is an n end, and the m ends of the two line segments are connected through the major arc; setting a straight line passing through the center of a circle corresponding to the major arc and arranged at equal intervals with the two line segments as a line L, and setting a point on the line L, which is positioned outside the leaf I and is close to the n end, as a point O; leaf II, leaf III and leaf IV are formed by leaf I rotated 90 °, 180 ° and 270 ° around point O, respectively.
One of the technical problems to be solved by the invention is that a large amount of broken filaments and broken filaments are generated in the spinning process, particularly in the drawing process in the prior art, which is not beneficial to the improvement of production and quality, and the profile degree of the obtained fiber is low, in order to solve the technical problem, the invention adopts the technical scheme that the spinneret orifice is designed to be in a multi-arc cross shape, the spinneret orifice in the prior art is in a common cross shape, the main difference between the multi-arc cross shape and the common cross shape is that the tail end shape of each leaf is in a major arc, the tail end shape of each leaf in the multi-arc cross shape is in a major arc, the tail end shape of each leaf in the common cross shape is in an arc, when the common cross-shaped spinneret orifice is utilized for spinning, the melt is easy to generate melt fracture phenomenon at the tail end of each leaf when the melt passes through the spinneret orifice, scaly stripes are generated on the filaments, so that the phenomena of floating filaments and broken filaments occur, and the phenomenon of the finished filaments also, the invention sets the shape of the tail end of each leaf in the shape of a multi-arc cross as a major arc to avoid melt fracture, thereby effectively solving the problems.
The invention adopts the multi-arc cross-shaped spinneret orifices to enable the cross section of the fiber to be deformed, thereby achieving the capillary action, on one hand, the fabric discharges sweat through the capillary channels on the fiber or among the fibers by utilizing the siphon capillary phenomenon, namely the wicking action, on the other hand, the space of the fiber is increased due to the deformed cross section of the fiber, thereby having dry, comfortable, moisture and temperature conductive performance, and the larger the wicking action, the better the moisture and temperature conductive performance.
As a preferred technical scheme:
in the manufacturing method of the moisture-conducting and temperature-conducting wicking polyester fiber, two line segments closest to each other in two adjacent leaves in the multi-arc cross shape are connected through 1/4 arcs, so that the melt fracture phenomenon can be further avoided, and the circle center corresponding to the 1/4 arc is the intersection point of the extension lines of the two line segments closest to each other in the two adjacent leaves in the multi-arc cross shape.
In the method for manufacturing the moisture and heat conducting wicking polyester fiber, the distance between the intersection point of the line L and the leaf I and the distance between the intersection point of the line L and the leaf III are a; the distance between two line segments in the leaf I is b; the diameter of a circle corresponding to the major arc is c; a is 0.60mm, b is 0.05-0.06 mm, c is 0.07-0.09 mm, and in order to ensure a certain radian, the value of c is 0.02-0.03 mm larger than the value of b.
In the method for manufacturing the moisture-conducting, temperature-conducting and wicking polyester fiber, the number of the multi-arc cross-shaped spinneret holes on the same spinneret plate is 48, 72, 96 or 144, and the number of the spinneret holes is generally multiple of 6, so that the design difficulty of the spinneret plate is mainly reduced.
The method for manufacturing the moisture-conducting, temperature-conducting and wicking polyester fiber comprises the steps that the spinneret plate comprises a spinneret plate body; the spinneret pore channel on the spinneret plate body is formed by sequentially connecting the guide hole, the bottom hole and the spinneret hole, the longitudinal section of the bottom hole is in a hyperbolic shape, the shearing rate of the melt can be improved, the polyester melt is a shear force thinning fluid, the apparent viscosity of the melt is reduced along with the increase of the shearing rate, and the fluidity of the melt is improved along with the increase of the shearing rate from the perspective of rheology, so that spinning is facilitated.
According to the manufacturing method of the moisture-conducting and temperature-conducting wicking polyester fiber, the feeding surface of the spinneret plate body is provided with the plurality of grooves which are arranged in a matrix manner, each groove is simultaneously communicated with the plurality of guide holes, the melt can uniformly flow into each spinneret hole along the grooves by the grooves, and the matrix arrangement is also beneficial to the dissipation of the heat of the filament.
The manufacturing method of the moisture-conducting, temperature-conducting and wicking polyester fiber comprises the following process flows: conveying the polyester melt to a spinning box → metering of a metering pump → extrusion of a multi-arc cross-shaped spinneret orifice → cooling → cluster oiling → winding.
The manufacturing method of the moisture-conducting and temperature-conducting wicking polyester fiber is characterized in that the cooling is circular air blow cooling, and the process parameters are as follows: the temperature of the cooling air is 19-22 ℃, the relative humidity of the cooling air is 70-80%, and the air pressure of a single spinning position is 25-35 Pa.
The method for manufacturing the moisture-conducting, temperature-conducting and wicking polyester fiber has the winding speed of 2400-2600 m/min; the winding adopts a winding machine, and a comb-shaped yarn separator, a first yarn guide disc, a network device, a second yarn guide disc, a pressure roller and a winding roller which is matched with the pressure roller for use are sequentially arranged in the winding machine; the comb-shaped wire separator ceramic piece is a 'oc' shaped ceramic piece, the 'oc' shape is a shape formed by two straight free sections which are crossed after being mutually closed, and the two free sections are not intersected.
The second technical problem to be solved by the present invention is that the contact point of the filament bundle passing through the ceramic piece of the comb-shaped filament splitter ("U" -shaped ceramic piece) in the prior art is at the bottom end of the "U" -shaped ceramic piece, the opening of the "U" -shaped ceramic piece is large, the constraint to the filament bundle is poor, the filament bundle in the "U" -shaped ceramic piece is easy to generate jumping phenomenon when the filament bundle is switched between spinning and winding, and thus the filament bundle jumps out of the "U" -shaped ceramic piece, so that the winding cannot be performed normally, in order to solve the technical problem, the technical scheme adopted by the present invention is to design the ceramic piece of the comb-shaped filament splitter as ". alpha." -shaped ceramic piece, the ". alpha." -shaped ceramic piece is a shape formed by two free sections of a straight line crossing after being mutually close, the two free sections do not cross, the contact point of the filament bundle passing through the ceramic piece of the comb-shaped filament splitter (". alpha." -shaped ceramic piece) is at the bottom end of the ". alpha." -shaped ceramic piece, the, the normal operation of winding is ensured. Experiments show that after the ceramic piece of the comb-shaped wire separator is changed from the U-shaped ceramic piece into the alpha-shaped ceramic piece, the phenomenon that the tows jump out of the comb-shaped wire separator disappears.
According to the manufacturing method of the moisture-conducting and temperature-conducting wicking polyester fiber, the yarn breakage rate of the moisture-conducting and temperature-conducting wicking polyester fiber is 1.5% -2.5% (3% -5% in the prior art), the broken yarn rate is 0.3% -0.5% (0.5% -0.7% in the prior art), the profile degree is 62% -65% (55% -60% in the prior art), the larger the profile degree of the fiber is, the better the moisture absorption and sweat releasing performance is, and the larger the number of holes (48, 72, 96, 144) is, the better the fluffiness and the air permeability are. The broken yarn rate is the ratio of the weight of broken ends per day to the total yield per day; the broken filament rate refers to the ratio of the weight of the ingot position of the broken filament to the total yield; the method for calculating the degree of abnormity comprises the following steps: the percentage of the difference between the area of the minimum circle containing the shaped fiber cross-section and the area of the shaped fiber cross-section to the area of the minimum circle containing the shaped fiber cross-section.
The invention provides production equipment of moisture-conducting, temperature-conducting and wicking polyester fibers and a preparation method thereof, aiming at the defects in the background art, the invention can improve the profile degree of the fibers, reduce the phenomena of broken filaments and broken filaments in the subsequent processing, simultaneously ensure that the constraint on tows is strengthened in the production process, prevent the phenomenon of filament jumping during the switching of spinning and winding, and avoid the conditions of wrong filament separation, broken ends and the like.
The production equipment for manufacturing the moisture-conducting, temperature-conducting and wicking polyester fiber comprises a spinning box body, a circular air-blowing cooling device, an oiling device, a spinning channel and a winding machine which are sequentially arranged from top to bottom, wherein a metering pump and a spinning assembly are arranged in the spinning box body, and a spinneret plate is arranged at the bottom of the spinning assembly.
The production equipment is adopted for production, and the specific process is as follows: polyester melt enters each spinning box body through a melt pipeline, the melt entering each spinning box body is accurately metered through a corresponding metering pump and then flows into each spinning assembly, the polyester melt is extruded into nascent fiber through a spinneret orifice of a spinneret plate in sequence, the nascent fiber is cooled and formed through a circular blowing cooling device, after the completion, the nascent fiber is bunched and oiled through an oiling device to form POY (polyester pre-oriented yarn) tows, and the POY tows pass through a spinning channel and then sequentially pass through a comb-shaped filament separator, a first godet, a networ and a second godet and are wound into spinning cakes under the action of a pressure roller.
Has the advantages that:
(1) the spinneret orifice has novel structural design, can effectively reduce the unevenness of melt extrusion swelling, improve the profile degree of products, and reduce the phenomena of broken filaments and broken filaments in the subsequent processing;
(2) the spinneret plate comprises a spinneret plate body, wherein a plurality of grooves which are arranged in a matrix manner are arranged on the feeding surface of the spinneret plate body, each groove is simultaneously communicated with a plurality of guide holes, a melt can uniformly flow into each spinneret hole along the grooves through the grooves, and the matrix arrangement is also beneficial to the dissipation of heat of thread strips;
(3) the longitudinal section of the bottom hole in the spinneret pore channel is hyperbolic, so that the shearing rate of the melt can be improved;
(4) the comb-shaped yarn separator ceramic piece is an 'alpha' -shaped ceramic piece, has a simple structure, is easy to produce, can strengthen the constraint on tows while ensuring quick yarn separation, prevents yarn jumping phenomenon during spinning yarn floating and winding switching, and avoids the conditions of yarn separation error, yarn breakage and the like;
(5) the finished fiber product prepared by the invention has good moisture absorption and sweat releasing, fluffiness, air permeability and anti-fluffing effect, the finished fabric has better stiffness, elasticity and hand feeling, and the prepared fiber product not only can quickly evaporate water vapor, but also has good quick drying property because the invention improves the gap rate among fibers.
Drawings
FIG. 1 is a schematic view of the structure of the production apparatus of the present invention;
FIG. 2 is a schematic structural view of a spinneret plate according to the present invention;
FIG. 3 is a schematic view of the arrangement of a plurality of grooves on the feeding surface of the spinneret body according to the present invention;
FIG. 4 is a cross-sectional view taken along line E-E of FIG. 3;
FIG. 5 is a schematic view of a conventional cross-shaped spinneret orifice of the prior art;
FIG. 6 is a schematic view of a multi-arc cross-shaped aperture in accordance with the present invention;
FIG. 7 is a sectional view taken along line A-A of FIG. 2;
FIG. 8 is a schematic view of a comb-shaped filament splitter for a U-shaped porcelain piece according to the prior art;
FIG. 9 is a partially enlarged view of the U-shaped ceramic comb-shaped filament splitter in FIG. 8;
FIG. 10 is a schematic view of the ". alpha." character-shaped ceramic comb-shaped wire divider according to the present invention;
FIG. 11 is a partially enlarged view of the ". alpha." shaped comb-shaped porcelain wire separator shown in FIG. 10;
FIG. 12 is a view of the structure of the porcelain comb-shaped wire separator in the shape of the line marked by ". alpha." in FIG. 10;
the spinning device comprises a spinning box 1, a spinning assembly 2, a circular blowing cooling device 3, an oiling device 4, a metering pump 5, a melt pipeline 6, a spinning channel 7, a winding machine 8, a comb-shaped yarn separator 9, a first godet 10, a network device 11, a second godet 12, a pressure roller 13, a winding roller 14, a spinneret plate 15, a spinneret plate body 16, a guide hole 17, a bottom hole 18 and a spinneret hole 19.
Detailed Description
The invention will be further illustrated with reference to specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Example 1
A manufacturing method of moisture and temperature conducting wicking polyester fiber comprises the following process flows: conveying the polyester melt to a spinning box → metering of a metering pump → extrusion of a multi-arc cross-shaped spinneret orifice → cooling → cluster oiling → winding;
as shown in fig. 1, the adopted production equipment comprises a spinning beam 1, a circular air-blowing cooling device 3, an oiling device 4, a spinning channel 7 and a winding machine 8 which are arranged in sequence from top to bottom;
a metering pump 5 (connected with a melt pipeline 6) and a spinning assembly 2 are arranged in the spinning box body 1; the bottom of the spinning component 2 is provided with a spinneret 15;
as shown in fig. 2, 3, 4, and 7, the spinneret 15 includes a spinneret body 16; the spinneret pore channel on the spinneret plate body 16 is formed by sequentially connecting a guide hole 17, a bottom hole 18 and a spinneret hole 19, and the longitudinal section of the bottom hole 18 is hyperbolic; a plurality of grooves which are arranged in a matrix shape are arranged on the feeding surface of the spinneret plate body 16, and each groove is simultaneously communicated with a plurality of guide holes 17;
as shown in fig. 6, the employed spinneret orifice is in a multi-arc cross shape; the number of the multi-arc cross-shaped spinneret holes on the same spinneret plate is 48; the multi-arc cross shape comprises four leaves, namely a leaf I, a leaf II, a leaf III and a leaf IV; the leaf I is formed by two line segments and a major arc in a surrounding mode, the two line segments are parallel to each other, two ends of the two line segments are flush, one end of each line segment is an m end, the other end of each line segment is an n end, and the m ends of the two line segments are connected through the major arc; a straight line passing through the center of the circle corresponding to the major arc and arranged at equal intervals with the two line segments is a line L, and one point on the line L, which is positioned outside the leaf I and close to the n end, is a point O; the leaves II, III and IV are respectively formed by rotating the leaf I around the point O by 90 degrees, 180 degrees and 270 degrees; two nearest line segments in two adjacent leaves in the multi-arc cross shape are connected through 1/4 circular arcs, and the circle center corresponding to the 1/4 circular arc is the intersection point of the extension lines of the two nearest line segments in the two adjacent leaves in the multi-arc cross shape; the distance between the intersection point of the line L and the leaf I and the intersection point of the line L and the leaf III is a; the distance between two line segments in the leaf I is b; the diameter of the circle corresponding to the major arc is c; a is 0.60mm, b is 0.05mm, c is 0.07 mm;
the cooling is circular air blowing cooling, and the technological parameters are as follows: the temperature of cooling air is 19 ℃, the relative humidity of the cooling air is 70%, and the air pressure of a single spinning position is 25 Pa;
winding by using a winding machine, wherein the winding speed is 2400 m/min; as shown in fig. 1, a comb-shaped yarn separator 9, a first godet 10, a networker 11, a second godet 12, a pressure roller 13 and a winding roller 14 used in cooperation with the pressure roller 13 are sequentially arranged in the winding machine 8; as shown in FIGS. 10-12, the comb-shaped wire separator porcelain piece is a 'oc' shaped porcelain piece, the 'oc' shape is a shape formed by two free sections of a straight line crossing after approaching each other, and the two free sections do not intersect.
The yarn breakage rate of the finally prepared moisture-conducting, temperature-conducting and wicking polyester fiber is 1.5%, the broken yarn rate is 0.3%, and the profile degree is 62%.
Comparative example 1
A manufacturing method of moisture and temperature conducting wicking polyester fiber is basically the same as that of example 1, except that the used spinneret holes are common cross-shaped spinneret holes, the size of the spinneret holes is basically the same as that of the multi-arc cross-shaped spinneret holes in example 1 (figure 5 is equivalent to that obtained by adjusting figure 6, and the adjustment is that 1) the major arc at the tail end of each blade is changed into a minor arc; 2) the 1/4 arc connecting the two nearest line segments in the two adjacent leaves is changed into an L-shaped line), as shown in fig. 5.
The yarn breakage rate of the finally prepared moisture-conducting, temperature-conducting and wicking polyester fiber is 5%, the broken yarn rate is 0.8%, and the profile degree is 57%.
Compared with the embodiment 1, the comparative example 1 has high broken filament rate, high broken filament rate and low profile degree, because when the common cross-shaped spinneret orifice is used for spinning, the melt is easy to generate melt fracture phenomenon at the tail end of each blade when passing through the spinneret orifice, scaly stripes are generated on the filament, so that the phenomena of filament floating and filament breakage occur, and the finished product filament also can generate the broken filament phenomenon, and because each blade end of the spinneret orifice is designed into a major arc, and two line segments closest to the adjacent two blades are connected through 1/4 circular arcs, the phenomena of melt fracture do not easily occur, so that the phenomena of filament floating and filament breakage occur rarely.
Comparative example 2
A method for manufacturing moisture and temperature conductive wicking polyester fiber, which is basically the same as the method in example 1, except that the ceramic part of the comb-shaped filament splitter used is a U-shaped ceramic part, as shown in fig. 8 and 9.
The yarn breakage rate of the finally prepared moisture-conducting, temperature-conducting and wicking polyester fiber is 4%, the broken yarn rate is 0.7%, and the profile tolerance is 55%.
Compared with the example 1, the comparative example 2 has a high yarn breakage rate and a high broken yarn rate because the contact point of the filament bundle passing through the comb-shaped filament splitter porcelain (the 'U' -shaped porcelain) of the prior art is at the bottom end of the 'U' -shaped part, the 'U' -shaped opening is large, the binding property to the filament bundle is poor, the filament bundle in the 'U' -shaped porcelain is easy to generate jumping phenomenon when the filament bundle is switched from the filament spinning and winding to the filament spinning and winding, so that the filament bundle jumps out of the 'U' -shaped porcelain, the contact point of the filament bundle passing through the comb-shaped filament splitter porcelain (the 'alpha' -shaped porcelain) is at the bottom end of the 'alpha' -shaped part, the 'alpha' -shaped opening is contracted, the binding property to the filament bundle is good, and the filament bundle in the 'alpha' -shaped porcelain is difficult to jump out of the 'alpha' -shaped porcelain when the filament spinning and winding are switched, so that the winding is ensured.
Example 2
A manufacturing method of moisture and temperature conducting wicking polyester fiber comprises the following process flows: conveying the polyester melt to a spinning box → metering of a metering pump → extrusion of a multi-arc cross-shaped spinneret orifice → cooling → cluster oiling → winding;
the adopted production equipment comprises a spinning box body, a circular blowing cooling device, an oiling device, a spinning channel and a winding machine which are sequentially arranged from top to bottom;
a metering pump and a spinning assembly are arranged in the spinning box body; the bottom of the spinning component is provided with a spinneret plate;
the spinneret plate comprises a spinneret plate body; the spinneret hole channel on the spinneret plate body is formed by sequentially connecting a guide hole, a bottom hole and a spinneret hole, and the longitudinal section of the bottom hole is hyperbolic; a plurality of grooves which are arranged in a matrix manner are arranged on the feeding surface of the spinneret plate body, and each groove is simultaneously communicated with a plurality of guide holes;
the adopted spinneret orifices are in a multi-arc cross shape; the number of the multi-arc cross-shaped spinneret holes on the same spinneret plate is 48; the multi-arc cross shape comprises four leaves, namely a leaf I, a leaf II, a leaf III and a leaf IV; the leaf I is formed by two line segments and a major arc in a surrounding mode, the two line segments are parallel to each other, two ends of the two line segments are flush, one end of each line segment is an m end, the other end of each line segment is an n end, and the m ends of the two line segments are connected through the major arc; a straight line passing through the center of the circle corresponding to the major arc and arranged at equal intervals with the two line segments is a line L, and one point on the line L, which is positioned outside the leaf I and close to the n end, is a point O; the leaves II, III and IV are respectively formed by rotating the leaf I around the point O by 90 degrees, 180 degrees and 270 degrees; two nearest line segments in two adjacent leaves in the multi-arc cross shape are connected through 1/4 circular arcs, and the circle center corresponding to the 1/4 circular arc is the intersection point of the extension lines of the two nearest line segments in the two adjacent leaves in the multi-arc cross shape; the distance between the intersection point of the line L and the leaf I and the intersection point of the line L and the leaf III is a; the distance between two line segments in the leaf I is b; the diameter of the circle corresponding to the major arc is c; a is 0.60mm, b is 0.05mm, c is 0.07 mm;
the cooling is circular air blowing cooling, and the technological parameters are as follows: the temperature of cooling air is 22 ℃, the relative humidity of the cooling air is 80%, and the air pressure of a single spinning position is 35 Pa;
winding by using a winding machine, wherein the winding speed is 2600 m/min; a comb-shaped yarn separator, a first yarn guide disc, a network device, a second yarn guide disc, a pressure roller and a winding roller which is mutually matched with the pressure roller are sequentially arranged in the winding machine; the comb-shaped wire separator ceramic piece is a 'oc' shaped ceramic piece, the 'oc' shape is a shape formed by two straight free sections which are crossed after being mutually closed, and the two free sections are not intersected.
The yarn breakage rate of the finally prepared moisture-conducting, temperature-conducting and wicking polyester fiber is 1.5%, the broken yarn rate is 0.3%, and the profile degree is 62%.
Example 3
A manufacturing method of moisture and temperature conducting wicking polyester fiber comprises the following process flows: conveying the polyester melt to a spinning box → metering of a metering pump → extrusion of a multi-arc cross-shaped spinneret orifice → cooling → cluster oiling → winding;
the adopted production equipment comprises a spinning box body, a circular blowing cooling device, an oiling device, a spinning channel and a winding machine which are sequentially arranged from top to bottom;
a metering pump and a spinning assembly are arranged in the spinning box body; the bottom of the spinning component is provided with a spinneret plate;
the spinneret plate comprises a spinneret plate body; the spinneret hole channel on the spinneret plate body is formed by sequentially connecting a guide hole, a bottom hole and a spinneret hole, and the longitudinal section of the bottom hole is hyperbolic; a plurality of grooves which are arranged in a matrix manner are arranged on the feeding surface of the spinneret plate body, and each groove is simultaneously communicated with a plurality of guide holes;
the adopted spinneret orifices are in a multi-arc cross shape; the number of the multi-arc cross-shaped spinneret holes on the same spinneret plate is 72; the multi-arc cross shape comprises four leaves, namely a leaf I, a leaf II, a leaf III and a leaf IV; the leaf I is formed by two line segments and a major arc in a surrounding mode, the two line segments are parallel to each other, two ends of the two line segments are flush, one end of each line segment is an m end, the other end of each line segment is an n end, and the m ends of the two line segments are connected through the major arc; a straight line passing through the center of the circle corresponding to the major arc and arranged at equal intervals with the two line segments is a line L, and one point on the line L, which is positioned outside the leaf I and close to the n end, is a point O; the leaves II, III and IV are respectively formed by rotating the leaf I around the point O by 90 degrees, 180 degrees and 270 degrees; two nearest line segments in two adjacent leaves in the multi-arc cross shape are connected through 1/4 circular arcs, and the circle center corresponding to the 1/4 circular arc is the intersection point of the extension lines of the two nearest line segments in the two adjacent leaves in the multi-arc cross shape; the distance between the intersection point of the line L and the leaf I and the intersection point of the line L and the leaf III is a; the distance between two line segments in the leaf I is b; the diameter of the circle corresponding to the major arc is c; a is 0.60mm, b is 0.05mm, c is 0.08 mm;
the cooling is circular air blowing cooling, and the technological parameters are as follows: the temperature of cooling air is 20 ℃, the relative humidity of the cooling air is 72%, and the air pressure of a single spinning position is 27 Pa;
the winding is carried out by a winder, and the winding speed is 2450 m/min; a comb-shaped yarn separator, a first yarn guide disc, a network device, a second yarn guide disc, a pressure roller and a winding roller which is mutually matched with the pressure roller are sequentially arranged in the winding machine; the comb-shaped wire separator ceramic piece is a 'oc' shaped ceramic piece, the 'oc' shape is a shape formed by two straight free sections which are crossed after being mutually closed, and the two free sections are not intersected.
The yarn breakage rate of the finally prepared moisture-conducting, temperature-conducting and wicking polyester fiber is 1.6%, the broken yarn rate is 0.4%, and the profile degree is 63%.
Example 4
A manufacturing method of moisture and temperature conducting wicking polyester fiber comprises the following process flows: conveying the polyester melt to a spinning box → metering of a metering pump → extrusion of a multi-arc cross-shaped spinneret orifice → cooling → cluster oiling → winding;
the adopted production equipment comprises a spinning box body, a circular blowing cooling device, an oiling device, a spinning channel and a winding machine which are sequentially arranged from top to bottom;
a metering pump and a spinning assembly are arranged in the spinning box body; the bottom of the spinning component is provided with a spinneret plate;
the spinneret plate comprises a spinneret plate body; the spinneret hole channel on the spinneret plate body is formed by sequentially connecting a guide hole, a bottom hole and a spinneret hole, and the longitudinal section of the bottom hole is hyperbolic; a plurality of grooves which are arranged in a matrix manner are arranged on the feeding surface of the spinneret plate body, and each groove is simultaneously communicated with a plurality of guide holes;
the adopted spinneret orifices are in a multi-arc cross shape; the number of the multi-arc cross-shaped spinneret holes on the same spinneret plate is 72; the multi-arc cross shape comprises four leaves, namely a leaf I, a leaf II, a leaf III and a leaf IV; the leaf I is formed by two line segments and a major arc in a surrounding mode, the two line segments are parallel to each other, two ends of the two line segments are flush, one end of each line segment is an m end, the other end of each line segment is an n end, and the m ends of the two line segments are connected through the major arc; a straight line passing through the center of the circle corresponding to the major arc and arranged at equal intervals with the two line segments is a line L, and one point on the line L, which is positioned outside the leaf I and close to the n end, is a point O; the leaves II, III and IV are respectively formed by rotating the leaf I around the point O by 90 degrees, 180 degrees and 270 degrees; two nearest line segments in two adjacent leaves in the multi-arc cross shape are connected through 1/4 circular arcs, and the circle center corresponding to the 1/4 circular arc is the intersection point of the extension lines of the two nearest line segments in the two adjacent leaves in the multi-arc cross shape; the distance between the intersection point of the line L and the leaf I and the intersection point of the line L and the leaf III is a; the distance between two line segments in the leaf I is b; the diameter of the circle corresponding to the major arc is c; a is 0.60mm, b is 0.06mm, c is 0.08 mm;
the cooling is circular air blowing cooling, and the technological parameters are as follows: the temperature of cooling air is 20 ℃, the relative humidity of the cooling air is 74%, and the air pressure of a single spinning position is 29 Pa;
winding by a winder at the speed of 2500 m/min; a comb-shaped yarn separator, a first yarn guide disc, a network device, a second yarn guide disc, a pressure roller and a winding roller which is mutually matched with the pressure roller are sequentially arranged in the winding machine; the comb-shaped wire separator ceramic piece is a 'oc' shaped ceramic piece, the 'oc' shape is a shape formed by two straight free sections which are crossed after being mutually closed, and the two free sections are not intersected.
The yarn breakage rate of the finally prepared moisture-conducting, temperature-conducting and wicking polyester fiber is 1.8%, the broken yarn rate is 0.4%, and the profile degree is 64%.
Example 5
A manufacturing method of moisture and temperature conducting wicking polyester fiber comprises the following process flows: conveying the polyester melt to a spinning box → metering of a metering pump → extrusion of a multi-arc cross-shaped spinneret orifice → cooling → cluster oiling → winding;
the adopted production equipment comprises a spinning box body, a circular blowing cooling device, an oiling device, a spinning channel and a winding machine which are sequentially arranged from top to bottom;
a metering pump and a spinning assembly are arranged in the spinning box body; the bottom of the spinning component is provided with a spinneret plate;
the spinneret plate comprises a spinneret plate body; the spinneret hole channel on the spinneret plate body is formed by sequentially connecting a guide hole, a bottom hole and a spinneret hole, and the longitudinal section of the bottom hole is hyperbolic; a plurality of grooves which are arranged in a matrix manner are arranged on the feeding surface of the spinneret plate body, and each groove is simultaneously communicated with a plurality of guide holes;
the adopted spinneret orifices are in a multi-arc cross shape; the number of the multi-arc cross-shaped spinneret orifices on the same spinneret plate is 96; the multi-arc cross shape comprises four leaves, namely a leaf I, a leaf II, a leaf III and a leaf IV; the leaf I is formed by two line segments and a major arc in a surrounding mode, the two line segments are parallel to each other, two ends of the two line segments are flush, one end of each line segment is an m end, the other end of each line segment is an n end, and the m ends of the two line segments are connected through the major arc; a straight line passing through the center of the circle corresponding to the major arc and arranged at equal intervals with the two line segments is a line L, and one point on the line L, which is positioned outside the leaf I and close to the n end, is a point O; the leaves II, III and IV are respectively formed by rotating the leaf I around the point O by 90 degrees, 180 degrees and 270 degrees; two nearest line segments in two adjacent leaves in the multi-arc cross shape are connected through 1/4 circular arcs, and the circle center corresponding to the 1/4 circular arc is the intersection point of the extension lines of the two nearest line segments in the two adjacent leaves in the multi-arc cross shape; the distance between the intersection point of the line L and the leaf I and the intersection point of the line L and the leaf III is a; the distance between two line segments in the leaf I is b; the diameter of the circle corresponding to the major arc is c; a is 0.60mm, b is 0.06mm, c is 0.09 mm;
the cooling is circular air blowing cooling, and the technological parameters are as follows: the temperature of cooling air is 21 ℃, the relative humidity of the cooling air is 76%, and the air pressure of a single spinning position is 31 Pa;
winding by a winder at a speed of 2550 m/min; a comb-shaped yarn separator, a first yarn guide disc, a network device, a second yarn guide disc, a pressure roller and a winding roller which is mutually matched with the pressure roller are sequentially arranged in the winding machine; the comb-shaped wire separator ceramic piece is a 'oc' shaped ceramic piece, the 'oc' shape is a shape formed by two straight free sections which are crossed after being mutually closed, and the two free sections are not intersected.
The yarn breakage rate of the finally prepared moisture-conducting, temperature-conducting and wicking polyester fiber is 2%, the broken yarn rate is 0.4%, and the profile degree is 64%.
Example 6
A manufacturing method of moisture and temperature conducting wicking polyester fiber comprises the following process flows: conveying the polyester melt to a spinning box → metering of a metering pump → extrusion of a multi-arc cross-shaped spinneret orifice → cooling → cluster oiling → winding;
the adopted production equipment comprises a spinning box body, a circular blowing cooling device, an oiling device, a spinning channel and a winding machine which are sequentially arranged from top to bottom;
a metering pump and a spinning assembly are arranged in the spinning box body; the bottom of the spinning component is provided with a spinneret plate;
the spinneret plate comprises a spinneret plate body; the spinneret hole channel on the spinneret plate body is formed by sequentially connecting a guide hole, a bottom hole and a spinneret hole, and the longitudinal section of the bottom hole is hyperbolic; a plurality of grooves which are arranged in a matrix manner are arranged on the feeding surface of the spinneret plate body, and each groove is simultaneously communicated with a plurality of guide holes;
the adopted spinneret orifices are in a multi-arc cross shape; the number of the multi-arc cross-shaped spinneret orifices on the same spinneret plate is 96; the multi-arc cross shape comprises four leaves, namely a leaf I, a leaf II, a leaf III and a leaf IV; the leaf I is formed by two line segments and a major arc in a surrounding mode, the two line segments are parallel to each other, two ends of the two line segments are flush, one end of each line segment is an m end, the other end of each line segment is an n end, and the m ends of the two line segments are connected through the major arc; a straight line passing through the center of the circle corresponding to the major arc and arranged at equal intervals with the two line segments is a line L, and one point on the line L, which is positioned outside the leaf I and close to the n end, is a point O; the leaves II, III and IV are respectively formed by rotating the leaf I around the point O by 90 degrees, 180 degrees and 270 degrees; two nearest line segments in two adjacent leaves in the multi-arc cross shape are connected through 1/4 circular arcs, and the circle center corresponding to the 1/4 circular arc is the intersection point of the extension lines of the two nearest line segments in the two adjacent leaves in the multi-arc cross shape; the distance between the intersection point of the line L and the leaf I and the intersection point of the line L and the leaf III is a; the distance between two line segments in the leaf I is b; the diameter of the circle corresponding to the major arc is c; a is 0.60mm, b is 0.06mm, c is 0.09 mm;
the cooling is circular air blowing cooling, and the technological parameters are as follows: the temperature of cooling air is 21 ℃, the relative humidity of the cooling air is 78%, and the air pressure of a single spinning position is 32 Pa;
winding by a winder at the speed of 2570 m/min; a comb-shaped yarn separator, a first yarn guide disc, a network device, a second yarn guide disc, a pressure roller and a winding roller which is mutually matched with the pressure roller are sequentially arranged in the winding machine; the comb-shaped wire separator ceramic piece is a 'oc' shaped ceramic piece, the 'oc' shape is a shape formed by two straight free sections which are crossed after being mutually closed, and the two free sections are not intersected.
The yarn breakage rate of the finally prepared moisture-conducting, temperature-conducting and wicking polyester fiber is 2.1%, the broken yarn rate is 0.5%, and the profile degree is 65%.
Example 7
A manufacturing method of moisture and temperature conducting wicking polyester fiber comprises the following process flows: conveying the polyester melt to a spinning box → metering of a metering pump → extrusion of a multi-arc cross-shaped spinneret orifice → cooling → cluster oiling → winding;
the adopted production equipment comprises a spinning box body, a circular blowing cooling device, an oiling device, a spinning channel and a winding machine which are sequentially arranged from top to bottom;
a metering pump and a spinning assembly are arranged in the spinning box body; the bottom of the spinning component is provided with a spinneret plate;
the spinneret plate comprises a spinneret plate body; the spinneret hole channel on the spinneret plate body is formed by sequentially connecting a guide hole, a bottom hole and a spinneret hole, and the longitudinal section of the bottom hole is hyperbolic; a plurality of grooves which are arranged in a matrix manner are arranged on the feeding surface of the spinneret plate body, and each groove is simultaneously communicated with a plurality of guide holes;
the adopted spinneret orifices are in a multi-arc cross shape; the number of multi-arc cross-shaped spinneret orifices on the same spinneret plate is 144; the multi-arc cross shape comprises four leaves, namely a leaf I, a leaf II, a leaf III and a leaf IV; the leaf I is formed by two line segments and a major arc in a surrounding mode, the two line segments are parallel to each other, two ends of the two line segments are flush, one end of each line segment is an m end, the other end of each line segment is an n end, and the m ends of the two line segments are connected through the major arc; a straight line passing through the center of the circle corresponding to the major arc and arranged at equal intervals with the two line segments is a line L, and one point on the line L, which is positioned outside the leaf I and close to the n end, is a point O; the leaves II, III and IV are respectively formed by rotating the leaf I around the point O by 90 degrees, 180 degrees and 270 degrees; two nearest line segments in two adjacent leaves in the multi-arc cross shape are connected through 1/4 circular arcs, and the circle center corresponding to the 1/4 circular arc is the intersection point of the extension lines of the two nearest line segments in the two adjacent leaves in the multi-arc cross shape; the distance between the intersection point of the line L and the leaf I and the intersection point of the line L and the leaf III is a; the distance between two line segments in the leaf I is b; the diameter of the circle corresponding to the major arc is c; a is 0.60mm, b is 0.06mm, c is 0.09 mm;
the cooling is circular air blowing cooling, and the technological parameters are as follows: the temperature of cooling air is 22 ℃, the relative humidity of the cooling air is 78%, and the air pressure of a single spinning position is 34 Pa;
winding by a winder at the speed of 2590 m/min; a comb-shaped yarn separator, a first yarn guide disc, a network device, a second yarn guide disc, a pressure roller and a winding roller which is mutually matched with the pressure roller are sequentially arranged in the winding machine; the comb-shaped wire separator ceramic piece is a 'oc' shaped ceramic piece, the 'oc' shape is a shape formed by two straight free sections which are crossed after being mutually closed, and the two free sections are not intersected.
The yarn breakage rate of the finally prepared moisture-conducting, temperature-conducting and wicking polyester fiber is 2.5%, the broken yarn rate is 0.5%, and the profile degree is 65%.
Claims (10)
1. A method for manufacturing moisture and temperature conducting wicking polyester fiber is characterized in that a multi-arc cross-shaped spinneret orifice is adopted; the multi-arc cross shape comprises four leaves, namely a leaf I, a leaf II, a leaf III and a leaf IV; the leaf I is enclosed by two line segments and a major arc, the two line segments are parallel to each other, two ends of the two line segments are flush, one end of each line segment is an m end, the other end of each line segment is an n end, and the m ends of the two line segments are connected through the major arc; setting a straight line passing through the center of a circle corresponding to the major arc and arranged at equal intervals with the two line segments as a line L, and setting a point on the line L, which is positioned outside the leaf I and is close to the n end, as a point O; leaf II, leaf III and leaf IV are formed by leaf I rotated 90 °, 180 ° and 270 ° around point O, respectively.
2. The method of claim 1, wherein two nearest line segments of two adjacent leaves in the multi-arc cross are connected by 1/4 arcs, and the center of the circle corresponding to 1/4 arc is the intersection of extensions of the two nearest line segments of the two adjacent leaves in the multi-arc cross.
3. The method for manufacturing moisture and temperature conductive wicking polyester fiber according to claim 2, wherein the distance between the intersection point of the line L and the leaf I and the intersection point of the line L and the leaf III is a; the distance between two line segments in the leaf I is b; the diameter of a circle corresponding to the major arc is c; a is 0.60mm, b is 0.05-0.06 mm, and c is 0.07-0.09 mm.
4. The method of claim 1, wherein the number of the multi-arc cross-shaped spinneret holes on the same spinneret plate is 48, 72, 96 or 144.
5. The method of claim 1, wherein the spinneret plate comprises a spinneret plate body; the spinneret pore channel on the spinneret plate body is formed by connecting a guide hole, a bottom hole and a spinneret hole in sequence, and the longitudinal section of the bottom hole is hyperbolic.
6. The method of claim 5, wherein the feeding surface of the spinneret body is provided with a plurality of grooves arranged in a matrix form, and each groove is simultaneously communicated with the plurality of guide holes.
7. The manufacturing method of the moisture and temperature conductive wicking polyester fiber as claimed in claim 1, wherein the process flow is as follows: conveying the polyester melt to a spinning box → metering of a metering pump → extrusion of a multi-arc cross-shaped spinneret orifice → cooling → cluster oiling → winding.
8. The method for manufacturing the moisture and temperature conductive wicking polyester fiber according to claim 7, wherein the cooling is circular air cooling, and the process parameters are as follows: the temperature of the cooling air is 19-22 ℃, the relative humidity of the cooling air is 70-80%, and the air pressure of a single spinning position is 25-35 Pa.
9. The method for manufacturing the moisture and temperature conductive wicking polyester fiber according to claim 7, wherein the winding speed is 2400 to 2600 m/min; the winding adopts a winding machine, and a comb-shaped yarn separator, a first yarn guide disc, a network device, a second yarn guide disc, a pressure roller and a winding roller which is matched with the pressure roller for use are sequentially arranged in the winding machine; the comb-shaped wire separator ceramic piece is a 'oc' shaped ceramic piece, the 'oc' shape is a shape formed by two straight free sections which are crossed after being mutually closed, and the two free sections are not intersected.
10. The method for manufacturing the moisture-conductive and temperature-conductive wicking polyester fiber according to any one of claims 1 to 9, wherein the moisture-conductive and temperature-conductive wicking polyester fiber has a filament breakage rate of 1.5% to 2.5%, a filament breakage rate of 0.3% to 0.5%, and a profile degree of 62% to 65%.
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