CN109402776A - A kind of composite fibre and preparation method thereof of core-skin type cool feeling long filament - Google Patents
A kind of composite fibre and preparation method thereof of core-skin type cool feeling long filament Download PDFInfo
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- CN109402776A CN109402776A CN201811171656.4A CN201811171656A CN109402776A CN 109402776 A CN109402776 A CN 109402776A CN 201811171656 A CN201811171656 A CN 201811171656A CN 109402776 A CN109402776 A CN 109402776A
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
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Abstract
A kind of composite fibre and preparation method thereof of core-skin type cool feeling long filament, the composite fibre, including sandwich layer and the cortex for being wrapped in sandwich layer outer surface, the component of the sandwich layer includes the high-viscosity polyamide that viscosity is 2.73~2.82dl/g;The component of the cortex includes the mixture of nanometer of master batch and high density polyethylene (HDPE), in the nanometer of master batch containing 8~10% zirconium oxide;The compound cool feeling filament fiber of the core-skin type that the present invention prepares makes the comfort level of fabric because the temperature difference effect of body-sensing is more obvious, and resistance to acid and alkali is more preferable, intensity and toughness are higher with good smooth surface and nice and cool characteristic.
Description
Technical field
The present invention relates to the composite fibre of composite fibre textile technology field more particularly to a kind of core-skin type cool feeling long filament and
Preparation method.
Background technique
Currently marketed cool fiber is broadly divided into short fibre and two kinds of long filament, and the preparation method taken is to spin
When PP, PET or PA6 one-component or bicomponent fibers, the mode with the ore class nanoscale master batch of cool feeling effect is added, is made
Achieve the effect that sendible temperature is low compared with general fibre afterwards;Fabric, which is made, in the fiber can be widely applied to the fields such as home textile and clothes,
But its body temperature-sensitive difference is caused to be imitated because structure and material is limited by the one-component cool fiber of existing spinning technique production
Fruit is unobvious, the lower deficiency of market acceptance level.
Summary of the invention
It is an object of the invention to propose a kind of compound cool feeling of core-skin type with good smooth surface and nice and cool characteristic
Filament fiber.
It is another object of the present invention to the preparation methods for proposing a kind of compound cool feeling filament fiber of core-skin type.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of composite fibre of core-skin type cool feeling long filament, including sandwich layer and the cortex for being wrapped in sandwich layer outer surface, the core
The component of layer includes the high-viscosity polyamide that viscosity is 2.73~2.82dl/g;The component of the cortex includes nanometer of master batch and height
The mixture of density polyethylene, the zirconium oxide for being 8~10% than percentage containing quality in the nanometer of master batch.
Present invention employs high-viscosity polyamides to make as sandwich layer and by the mixture of nanometer of master batch and high density polyethylene (HDPE)
For cortex, the compound cool feeling filament fiber of core-skin type is obtained.Wherein, sandwich layer is made of high-viscosity polyamide, and it is viscous to control it
Degree is 2.73~2.82dl/g, and when making cortex melted by heating, the physical property of sandwich layer is constant, to keep its original polyamide fibre fine
Tie up the performance that the intensity having is high, elasticity is good;High density polyethylene (HDPE) mixture makes its fiber table because of its distinctive molecular chain structure
Face has good smooth and nice and cool characteristic, and chemical stability is good, and rigidity and toughness also with higher, mechanical strength is good, no
It is dissolved in any organic solvent, the corrosion of acid and alkali resistance and various salts;Nanometer of master batch good dispersion containing zirconium oxide has good
Good thermo-chemical stability, pyroconductivity and higher intensity and toughness, partial size is small, stability is strong, have it is acidproof, alkaline-resisting,
Performance corrosion-resistant, resistant to high temperature.Therefore, compound using the polyethylene and high-viscosity polyamide that are mixed containing zirconia nanopowder master batch
Made of core-skin type cool feeling long filament composite fibre, on the one hand, realize and zirconia nanopowder function be effectively added in polyethylene
Master batch is formed by cortex construction, enhances its smooth effect of feeling nice and cool;It on the other hand, is 8 by regulating and controlling the additive amount of zirconium oxide
~10% and polyamide viscosity, with meet high density polyethylene (HDPE) mixture and high-viscosity polyamide cortex and sandwich layer it
Between composite spinning requirement, thus enhance feel nice and cool smooth characteristic and chemistry, mechanical stability, realization make the comfort level of fabric because
The temperature difference effect of body-sensing is more obvious, and resistance to acid and alkali is more preferable.With the cool fiber phase of virgin pp, pure polyester or pure polyamide
Than, surface is more smooth, body-sensing cooling effect becomes apparent from, thus overcome polypropylene, polyester, Fypro Boardy Feeling and
Bored wet disadvantage.
It further illustrates, in the composite fibre, the mass ratio of the cortex and sandwich layer is 1:1~2:3.It controls centainly
Mass ratio between high-viscosity polyamide and high density polyethylene (HDPE) mixed raw material is on the one hand to ensure that structure is more stable,
Guarantee good insulation performance;On the other hand, pass through high density polyethylene (HDPE) mixed raw material and high-viscosity polyamide different proportion
Spinning, can be obtained performance indicator difference, feel, different style compound cool feeling filament fiber, the fabric for meeting different purposes knits
It makes.
It further illustrates, the nanometer of master batch are mixed with by polyethylene, zirconium oxide and high temperature resistant additive, described
The granularity of nanometer of master batch is 1nm.Since in production zirconia nanopowder master batch, the fusing point of zirconium oxide is lower, and will be highly dense
It spends polyethylene mixture and high-viscosity polyamide compound tense needs higher fusing point, it is therefore, resistance to by also being added in nanometer of master batch
High temperature additive, and the ratio of the zirconia nanopowder master batch of addition is controlled, high density polyethylene (HDPE) mixed raw material can be made to reach institute
The fusing point needed improves cool feeling filament fiber to meet the composite demand of high density polyethylene (HDPE) mixed raw material and high-viscosity polyamide
Spinnability, obtain more stable structure, that is, after cortex polyethylene is added to 8~10% zirconia nanopowder master batch, both
There is cool feeling effect, meet spinning requirement again.
It further illustrates, the fusing point of the high-viscosity polyamide is 220~230 DEG C, and the high density polyethylene (HDPE) mixing is former
The fusing point of material is 125~135 DEG C.By controlling the melting temperature of high-viscosity polyamide and high density polyethylene (HDPE) mixed raw material, make
During the spinning process, the fusing point using its high-viscosity polyamide and high density polyethylene (HDPE) is poor, can take into account the spinning temperature of the two
Degree, improves its composite spinning effect.
It further illustrates, the melt index of the high density polyethylene (HDPE) mixed raw material is 15~20g/10min.Pass through control
The melt index range of high density polyethylene (HDPE) mixed raw material improves the physical property of composite fibre cortex, enhances the heat-resisting of product
Property, stress crack resistant ability, impact strength, acid and alkali resistance and various salt corrosion abilities etc..
A kind of preparation method for the fiber that core-skin type cool feeling long filament is compound, includes the following steps:
1) using high-viscosity polyamide as raw material A, continuous crystallisation, drying are carried out, it is poly- less than 300ppm that moisture content is made
After amide dry chip, into the first screw extruder, melt extruded becomes polyamide melt, then the polyamide melt is conveyed
It into spinning manifold, by prefilter, and is evenly distributed in core-skin type composite component, obtains core layer component;
2) nanometer of master batch containing 8~10% zirconium oxide are mixed with high density polyethylene (HDPE), as raw material B, by its into
Enter in the second screw extruder, melt extruded forms high density polyethylene (HDPE) mixed raw material melt, then the high density polyethylene (HDPE) is mixed
It closes raw material melt to be transported in spinning manifold, and is evenly distributed in core-skin type composite component, obtain cortex component;
3) core layer component and cortex component are obtained into spun filament by the uniform extrusion molding of core-skin type composite spining module,
And be cooled and shaped, oil by cross air blasting, heating drawing-off, interlacing and winding obtain the composite fibre of core-skin type cool feeling long filament.
The present invention utilizes the zirconium oxide containing 8~10% using cool feeling long filament composite fibre made of the above method
Mixture, the high-viscosity polyamide of nanometer of master batch and high density polyethylene (HDPE) mixing are used by two-component composite spinning production line
Skin-core structure composite fibre is made by composite spinning, drawing-off in core-skin type component, by cooling wind speed, cooling wind temperature, cooling
The adjusting of humidity, spinning speed controls the spinnability of composite fibre, so that polyethylene/polyamide core-skin is made in effectively Compound spinning
Type cool feeling long filament composite fibre improves experience effect of the fiber in terms of sendible temperature, expands cool fiber in home textile kimonos
The application in dress field.Sandwich layer polyamide is wrapped by cortex polyethylene and plays protective layer, composite fibre is in soda acid melt
Intensity only has dropped 5% to 10%, is suitble to use in occasions such as all kinds of tooling protective articles, outdoor fabrics, and existing pure brocade
The intensity decline 40% to 50% in strong acid-base melt of synthetic fibre fiber;And the present invention because its cortex be polyethylene, have it is acidproof,
The smooth performance of alkaline-resisting characteristic and surface, makes it be widely used in the fields such as the clothings fabric such as all kinds of home textiles, tooling, underwear,
Processing step is simple, and final product quality is stablized, and provides the preparation process of reliable cool feeling filament fiber for actual production.
It further illustrates, the melt extruded process of the first screw extruder is equipped with five sections of heating zones, setting temperature in step 1)
Degree is 240 DEG C~255 DEG C, and the spinning temperature of manifold is 250 DEG C~270 DEG C.During the preparation process, high-viscosity polyamide is molten
Point temperature is 220~230 DEG C, therefore by the way that the process of melt extruded is divided into five sections of heating zones, and controls heating temperature and spinning
Silk temperature is all higher than the fusing point of polyester, to guarantee the melt temperature of each component, avoids too low or too high, melting effect is steady
It is fixed, effectively carry out screw extruding and spinning.
It further illustrates, the melt extruded process of the second screw extruder is equipped with five sections of heating zones, setting temperature in step 2)
Degree is 160 DEG C~220 DEG C, and the spinning temperature of manifold is 230 DEG C~250 DEG C.High density polyethylene (HDPE) mixed raw material melting range
It is 125~135 DEG C, the heating temperature and spinning temperature of five sections of heating zones are all higher than the fusing point of high density polyethylene (HDPE) mixed raw material,
And the material of different phase different shape holds tender feeling condition and demand to heat is different, so heating zone is divided into five
Section is conducive to the melting of high density polyethylene (HDPE) mixed raw material in this way, is more advantageous to the melting extrusion of high density polyethylene (HDPE) mixed raw material
And spinning, the high density polyethylene (HDPE) mixed raw material melt of acquisition are more stable.
It further illustrates, in step 3), the wind speed of side-blown air cooling is 0.4~1.0m/s, and the temperature of side-blown air cooling is
15~30 DEG C, the relative humidity of side-blown air cooling is 60~90%, and the spinning speed of manifold is 2600~3500m/min.By
It is big in the crystallization rate difference of both polyethylene mixture, high-viscosity polyamide, therefore need the spinning speed by both control
Degree, to guarantee the stability of spinning effect.And the thermal coefficient difference of both polyethylene mixture, high-viscosity polyamide is big, because
This also needs the cooling velocity of both strict controls.By polyamide component and polyethylene mixing component be respectively adopted two groups it is independent
Biphenyl heating system is heated, and to guarantee the melt temperature of each component, and melt is passed through metering pump, spinning manifold and core-skin
Type spinneret forms spun filament, is most cooled down, is oiled through cross air blasting afterwards, drawing-off, interlacing and winding, and passes through control cross air blasting
Cooling wind speed, temperature, relative humidity and spinning speed, during cooled and solidified, balanced ventilation, quenching air is uneven
The dry unevenness of ribbon can be generated, high-speed spinning winding tension is big, and improving wind speed will not cause tow to swing, in 15~30 DEG C of wind-warm syndrome
Spinline tension and finished product yarn quality are had little influence on, so that the fiber quality produced is more secure.
It further illustrates, in step 3), the compound cool feeling filament fiber of the core-skin type of acquisition, tow total draft multiple is 3.5
~6.5;The heating drawing-off is hot-rolling drawing-off twice, and the temperature of the first hot-rolling drawing-off is 70~100 DEG C, speed is 800~
2000m/min;The temperature of second hot-rolling drawing-off is 80~110 DEG C, and speed is 2000~4000m/min;Winding speed is 1800
~3900m/min.By controlling the drafting multiple of tow, the temperature and speed, the speed of winding of hot-rolling drawing-off twice, make to stretch
Intrastitial macromolecular is orientated along fiber axis in the process, and the molecule number of keys for making fiber bear external force increases, to make fiber
Breaking strength significantly improves, and ductility decline and also significantly improves the fatigue strength of his various different type deformation wearability,
External force is axially imposed in tow under certain conditions, the single fiber in tow is drawn and attenuated, the degree of orientation is improved, makes single fiber by low
By force, the high mecystasis stretched becomes high-strength, flatness elastic stage.
Beneficial effects of the present invention: high-viscosity polyamide is used as sandwich layer and by nanometer of master batch and high density polyethylene (HDPE)
Mixture as cortex, obtain the compound cool feeling filament fiber of core-skin type.It not only realizes and oxidation is effectively added in polyethylene
Zirconium nano functional master batch is formed by cortex construction, enhances its smooth effect of feeling nice and cool;And pass through the addition of regulation zirconium oxide
The viscosity of amount and polyamide, between the cortex and sandwich layer to meet high density polyethylene (HDPE) mixture and high-viscosity polyamide
Composite spinning requirement, to enhance feel nice and cool smooth characteristic and chemistry, mechanical stability, realization makes the comfort level of fabric because of body-sensing
Temperature difference effect it is more obvious, and resistance to acid and alkali is more preferable, and intensity and toughness are higher.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the composite fibre of the core-skin type cool feeling long filament of one embodiment of the invention;
Fig. 2 is the composite fibre preparation flow figure of the core-skin type cool feeling long filament of one embodiment of the invention;
Wherein: cortex component 1, core layer component 2.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
A kind of preparation method of the compound cool feeling filament fiber of core-skin type of embodiment 1-, includes the following steps:
It (1) is raw material A, viscosity 2.73dl/g, fusing point 220 by the high-viscosity polyamide that parts by weight are 50%
℃;It is entered into crystallizing bed and drying tower, continuous crystallisation, drying are carried out to material, the high viscosity that moisture content < 30ppm is made is poly-
Amide dry chip, into the first screw extruder, melt extruded becomes high-viscosity polyamide melt, and the first screw extruder melts
Melt extrusion process equipped with five sections of heating zones, the heating temperature in each area is 240 DEG C, 250 DEG C, 252 DEG C, 255 DEG C, 255 DEG C of (five area's spiral shells
Bar), and the high-viscosity polyamide melt conveying (is glued in the first screw extruder to high between spinning manifold into spinning manifold
Spend polyamide melt and pass through prefilter, the large granular impurity in high-viscosity polyamide melt is removed), it is further to lead to metering pump
It is evenly distributed in core-skin type composite component, obtains core layer component;
(2) nanometer of master batch of the zirconium oxide containing 8% are mixed with high density polyethylene (HDPE), nanometer of master batch granularity is 1nm;And
Taking parts by weight is 50% high density polyethylene (HDPE) mixture as raw material B, melt index 15g/10min, fusing point 125
DEG C, by its enter the second screw extruder in, melt extruded become can spinning high density polyethylene (HDPE) blend melt, the second screw rod
The melt extruded process of extruder is equipped with five sections of heating zones, the heating temperature in each area is 180 DEG C, 210 DEG C, 215 DEG C, 220 DEG C,
225 DEG C (five district screw rods), and lead to metering pump by the melt conveying into spinning manifold, and it is multiple to be further evenly distributed to core-skin type
In seaming element, cortex component is obtained;
(3) the cortex component and core layer component are come into being by the uniform extrusion molding of core-skin type composite spining module
Silk, wherein the mass ratio of cortex and sandwich layer is 1:1;It is cooled and shaped by annealing device, cross air blasting, the wind speed of side-blown air cooling
For 1.0m/s, the temperature of side-blown air cooling is 15, and the relative humidity of side-blown air cooling is 60%, and oil feeding system oils, and passes through spinning
Silk path, spinning speed 3500m/min enter oil tanker, godet, hot-rolling drawing-off, and the temperature of the first hot-rolling drawing-off is 70 DEG C,
Speed 800m/min;110 DEG C of the temperature of second hot-rolling drawing-off;Winding, coiling speed are 3900m/min, obtain core-skin type cool feeling
The composite fibre 1 of long filament.
The composite fibre 1 of resulting core-skin type cool feeling long filament, tow total draft multiple are 3.5, the fiber number of the composite fibre 1
For 165dtex, breaking strength >=3.5CN/dtex, elongation at break is 30~50%, yarn unevenness CV value < 2.5%.
A kind of preparation method of the compound cool feeling filament fiber of core-skin type of embodiment 2-, includes the following steps:
It (1) is raw material A, viscosity 2.82dl/g, fusing point 230 by the high-viscosity polyamide that parts by weight are 60%
℃;It is entered into crystallizing bed and drying tower, continuous crystallisation, drying are carried out to material, the high viscosity that moisture content < 30ppm is made is poly-
Amide dry chip, into the first screw extruder, melt extruded becomes high-viscosity polyamide melt, and the first screw extruder melts
Melt extrusion process equipped with five sections of heating zones, the heating temperature in each area is 240 DEG C, 250 DEG C, 252 DEG C, 255 DEG C, 255 DEG C of (five area's spiral shells
Bar), and the high-viscosity polyamide melt conveying (is glued in the first screw extruder to high between spinning manifold into spinning manifold
Spend polyamide melt and pass through prefilter, the large granular impurity in high-viscosity polyamide melt is removed), it is further to lead to metering pump
It is evenly distributed in core-skin type composite component, obtains core layer component;
(2) nanometer of master batch of the zirconium oxide containing 10% are mixed with high density polyethylene (HDPE), nanometer of master batch granularity is 1nm;
And taking parts by weight is 40% high density polyethylene (HDPE) mixture as raw material B, melt index 15g/10min, fusing point 125
DEG C, by its enter the second screw extruder in, melt extruded become can spinning high density polyethylene (HDPE) blend melt, the second screw rod
The melt extruded process of extruder is equipped with five sections of heating zones, the heating temperature in each area is 180 DEG C, 210 DEG C, 215 DEG C, 220 DEG C,
225 DEG C (five district screw rods), and lead to metering pump by the melt conveying into spinning manifold, and it is multiple to be further evenly distributed to core-skin type
In seaming element, cortex component is obtained;
(3) the cortex component and core layer component are come into being by the uniform extrusion molding of core-skin type composite spining module
Silk, wherein the mass ratio of cortex and sandwich layer is 1:1;It is cooled and shaped by annealing device, cross air blasting, the wind speed of side-blown air cooling
For 0.4m/s, the temperature of side-blown air cooling is 30 DEG C, and the relative humidity of side-blown air cooling is 90%, and oil feeding system oils, and passes through
Spinning shaft, spinning speed 2600m/min enter oil tanker, godet, hot-rolling drawing-off, and the temperature of the first hot-rolling drawing-off is 100
DEG C, speed 2000m/min;80 DEG C of the temperature of second hot-rolling drawing-off;Winding, coiling speed are 1800m/min, and it is cool to obtain core-skin type
Feel the composite fibre 2 of long filament.
The composite fibre 2 of resulting core-skin type cool feeling long filament, tow total draft multiple are 6.5, the fiber number of the composite fibre 2
For 110dtex, breaking strength >=4.0CN/dtex, elongation at break is 20~40%, yarn unevenness CV value < 2.0%.
A kind of preparation method of the compound cool feeling filament fiber of core-skin type of embodiment 3-, includes the following steps:
It (1) is raw material A, viscosity 2.76dl/g, fusing point 225 by the high-viscosity polyamide that parts by weight are 60%
℃;It is entered into crystallizing bed and drying tower, continuous crystallisation, drying are carried out to material, the high viscosity that moisture content < 30ppm is made is poly-
Amide dry chip, into the first screw extruder, melt extruded becomes high-viscosity polyamide melt, and the first screw extruder melts
Melt extrusion process equipped with five sections of heating zones, the heating temperature in each area is 240 DEG C, 250 DEG C, 252 DEG C, 255 DEG C, 255 DEG C of (five area's spiral shells
Bar), and the high-viscosity polyamide melt conveying (is glued in the first screw extruder to high between spinning manifold into spinning manifold
Spend polyamide melt and pass through prefilter, the large granular impurity in high-viscosity polyamide melt is removed), it is further to lead to metering pump
It is evenly distributed in core-skin type composite component, obtains core layer component;
(2) nanometer of master batch of the zirconium oxide containing 9% are mixed with high density polyethylene (HDPE), nanometer of master batch granularity is 1nm;And
Taking parts by weight is 40% high density polyethylene (HDPE) mixture as raw material B, melt index 18g/10min, fusing point 130
DEG C, by its enter the second screw extruder in, melt extruded become can spinning high density polyethylene (HDPE) blend melt, the second screw rod
The melt extruded process of extruder is equipped with five sections of heating zones, the heating temperature in each area is 180 DEG C, 210 DEG C, 215 DEG C, 220 DEG C,
225 DEG C (five district screw rods), and lead to metering pump by the melt conveying into spinning manifold, and it is multiple to be further evenly distributed to core-skin type
In seaming element, cortex component is obtained;
(3) the cortex component and core layer component are come into being by the uniform extrusion molding of core-skin type composite spining module
Silk, wherein the mass ratio of cortex and sandwich layer is 1:1;It is cooled and shaped by annealing device, cross air blasting, the wind speed of side-blown air cooling
For 0.8m/s, the temperature of side-blown air cooling is 20 DEG C, and the relative humidity of side-blown air cooling is 75%, and oil feeding system oils, and passes through
Spinning shaft, spinning speed 3200m/min enter oil tanker, godet, hot-rolling drawing-off, and the temperature of the first hot-rolling drawing-off is 80
DEG C, speed 1000m/min;100 DEG C of the temperature of second hot-rolling drawing-off;Winding, coiling speed are 2600m/min, obtain core-skin type
The composite fibre 3 of cool feeling long filament.
The composite fibre 3 of resulting core-skin type cool feeling long filament, tow total draft multiple are 5.0, the fiber number of the composite fibre 3
For 130dtex, breaking strength >=3.8CN/dtex, elongation at break is 35~60%, yarn unevenness CV value < 2.2%.
A kind of preparation of the compound cool feeling filament fiber of the core-skin type proposed through the invention it can be seen from Examples 1 to 3
Method, for the fiber number of the prepared cool feeling long filament composite fibre obtained in 165dtex or more, breaking strength can reach >=4.0CN/
Dtex, for elongation at break between 20~60%, yarn unevenness CV value being capable of < 2.0%;It puts it into soda acid melt,
Its intensity only has dropped 5%~10%;And after fabric sample is made in above-mentioned composite fibre, it is higher than test specimens in hot plate temperature
At 20 DEG C of product, the maximum heat absorptivity measured is 0.58w/cm2, people is made still to feel suitable under conditions of higher temperatures
Sliding nice and cool, when temperature reaches 35 DEG C or more, the cooling effect of human body is up to 3~3.5 DEG C.
The technical principle of the invention is described above in combination with a specific embodiment.These descriptions are intended merely to explain of the invention
Principle, and shall not be construed in any way as a limitation of the scope of protection of the invention.Based on the explanation herein, the technology of this field
Personnel can associate with other specific embodiments of the invention without creative labor, these modes are fallen within
Within protection scope of the present invention.
Claims (10)
1. a kind of composite fibre of core-skin type cool feeling long filament, including sandwich layer and the cortex for being wrapped in sandwich layer outer surface, feature exists
In the component of the sandwich layer includes the high-viscosity polyamide that viscosity is 2.73~2.82dl/g;The component of the cortex includes receiving
The mixture of rice master batch and high density polyethylene (HDPE), the zirconium oxide for being 8~10% than percentage containing quality in the nanometer of master batch.
2. a kind of composite fibre of core-skin type cool feeling long filament according to claim 1, which is characterized in that the composite fibre
In, the mass ratio of the cortex and sandwich layer is 1:1~2:3.
3. a kind of composite fibre of the compound cool feeling long filament of core-skin type according to claim 1, which is characterized in that the nanometer
Master batch is mixed with by polyethylene, zirconium oxide and high temperature resistant additive, and the granularity of the nanometer of master batch is 1nm.
4. a kind of composite fibre of core-skin type cool feeling long filament according to claim 1, which is characterized in that the high viscosity is poly-
The fusing point of amide is 220~230 DEG C, and the fusing point of the high density polyethylene (HDPE) mixed raw material is 125~135 DEG C.
5. a kind of composite fibre of core-skin type cool feeling long filament according to claim 1, which is characterized in that the high density is poly-
The melt index of ethylene mixed raw material is 15~20g/10min.
6. a kind of preparation method of the compound fiber of core-skin type cool feeling long filament as described in any one in Claims 1 to 5,
It is characterized by comprising the following steps:
1) using high-viscosity polyamide as raw material A, continuous crystallisation, drying are carried out, the polyamide that moisture content is less than 300ppm is made
After dry chip, into the first screw extruder, melt extruded becomes polyamide melt, then the polyamide melt is transported to spinning
It in silk cabinet, by prefilter, and is evenly distributed in core-skin type composite component, obtains core layer component;
2) nanometer of master batch containing 8~10% zirconium oxide are mixed with high density polyethylene (HDPE), as raw material B, it is entered to the
In two screw extruders, melt extruded forms high density polyethylene (HDPE) mixed raw material melt, then the high density polyethylene (HDPE) is mixed original
Material melt conveying is evenly distributed in core-skin type composite component into spinning manifold, obtains cortex component;
3) core layer component and cortex component are obtained into spun filament by the uniform extrusion molding of core-skin type composite spining module, and passed through
It crosses cross air blasting to be cooled and shaped, oil, heating drawing-off, interlacing and winding obtain the composite fibre of core-skin type cool feeling long filament.
7. a kind of preparation method of the compound cool feeling filament fiber of core-skin type according to claim 6, which is characterized in that step
1) the melt extruded process of the first screw extruder is equipped with five sections of heating zones in, and set temperature is 240 DEG C~255 DEG C, manifold
Spinning temperature be 250 DEG C~270 DEG C.
8. a kind of preparation method of the compound cool feeling filament fiber of core-skin type according to claim 6, which is characterized in that step
2) the melt extruded process of the second screw extruder is equipped with five sections of heating zones in, and set temperature is 160 DEG C~220 DEG C, manifold
Spinning temperature be 230 DEG C~250 DEG C.
9. a kind of preparation method of the compound cool feeling filament fiber of core-skin type according to claim 6, which is characterized in that step
3) in, the wind speed of side-blown air cooling is 0.4~1.0m/s, and the temperature of side-blown air cooling is 15~30 DEG C, the phase of side-blown air cooling
It is 60~90% to humidity, the spinning speed of manifold is 2600~3500m/min.
10. a kind of preparation method of the compound cool feeling filament fiber of core-skin type according to claim 6, which is characterized in that step
It is rapid 3) in, the compound cool feeling filament fiber of the core-skin type of acquisition, tow total draft multiple be 3.5~6.5;The heating drawing-off is two
Secondary hot-rolling drawing-off, the temperature of the first hot-rolling drawing-off are 70~100 DEG C, and speed is 800~2000m/min;Second hot-rolling drawing-off
Temperature is 80~110 DEG C, and speed is 2000~4000m/min;Winding speed is 1800~3900m/min.
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CN112779642A (en) * | 2020-12-30 | 2021-05-11 | 佛山(华南)新材料研究院 | Cooling textile and preparation method thereof |
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CN113445142A (en) * | 2021-05-28 | 2021-09-28 | 桐昆集团股份有限公司 | Production method of cool feeling cable elastic fiber |
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CN117127271A (en) * | 2023-08-30 | 2023-11-28 | 浙江古纤道股份有限公司 | Processing method of hollow skin-core cool feeling fiber |
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