CN107916462A - A kind of sun washs composite filament and preparation method thereof - Google Patents
A kind of sun washs composite filament and preparation method thereof Download PDFInfo
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- CN107916462A CN107916462A CN201711341943.0A CN201711341943A CN107916462A CN 107916462 A CN107916462 A CN 107916462A CN 201711341943 A CN201711341943 A CN 201711341943A CN 107916462 A CN107916462 A CN 107916462A
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- spinneret orifice
- spinneret
- sun
- orifice
- composite filament
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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
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
-
- 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
- D01D1/00—Treatment of filament-forming or like material
- D01D1/06—Feeding liquid to the spinning head
- D01D1/09—Control of pressure, temperature or feeding rate
-
- 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
-
- 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
- D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
- D01D5/247—Discontinuous hollow structure or microporous structure
-
- 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
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Multicomponent Fibers (AREA)
Abstract
The present invention relates to a kind of sun to wash composite filament and preparation method thereof, and preparation method is：PET melt and CDP melts are extruded through metering, composite spinneret, cooled down, is oiled, is stretched, thermal finalization and winding are made sun and wash composite filament, two kinds of different spinneret orifice A and B are equipped with composite spinneret at the same time, product of the ratio between the equivalent diameter of the microcell length ratio of spinneret orifice A and B equal to spinneret orifice A and B with the ratio between COEFFICIENT K and the consistency coefficient of material for flowing through spinneret orifice B and A, equivalent diameter is the cross-sectional area of spinneret orifice and the ratio of section girth, and COEFFICIENT K is 0.97~1.03；A branch of sun of same spinneret extrusion is washed contains PET monofilament and CDP monofilament at the same time in composite filament.Inventive process ensures that sun, which washs spinning in composite filament preparation process, smoothly stablizes progress, the sun prepared, which washs composite filament, has abundant color and luster, and application prospect is extensive.
Description
Technical field
The invention belongs to fiber preparation field, is related to a kind of sun and washs composite filament and preparation method thereof.
Background technology
As the development of modern textile technology and people's living standard are continuously improved, people are to taking, decorating and industrial
The yield of chemical fibre, performance and quality are put forward higher requirements used by textile, and therefore, in recent years, researcher causes
Power is in the research and development of the new varieties of chemical fibre, to meet the market demand of the people to the fiber with high added value.
Consumption market occurs to high sensibility, multifunction textile demand at present, must in order to cater to these demands
Traditional fiber manufacture must be changed, develop high functional fibre, high sensibility fiber, intelligent fiber and biodegradable fiber
Deng to improve the quality of life of the scientific and technological content of textile and people.The exploitation of foreign components composite filament is then to realize fiber height
Sensibility, multifunction a important means.Domestic and international foreign components composite filament production technology is in staple fiber and long stapled life
Develop comparatively fast in production, be mainly used in the heat bonding non-woven cloth used in production health field, its product has well fluffy
Property, crimpiness and flexibility.
Foreign components composite filament is the chemical fibre that several different polymer melts are formed through spinneret extrusion spinning, will be several
The melt of kind polymer extrudes the composite filament for spinning and forming jointly through the spinneret with plate abnormity can integrate the excellent of several fibers
Point, so that the composite filament of high comprehensive performance be made.However, the production of foreign components composite filament is but there are bigger difficulty, due to
The polymer melt of spinning is non-newtonian fluid, is viscoelastic fluid, while it makees stickiness flowing in spinneret orifice, will be occurred
Elastic deformation, forms certain pressure, and therefore, polymer melt can produce certain pressure drop after going out spinneret orifice, spinneret orifice
Shape, size, length and mutual relation pair its pressure drop can all have a huge impact, and existing research is general only
It is identical or cross-sectional area is equal in view of the shape of spinneret orifice, and shape, size and the mutual influence of length do not have
It is related to, so will result in polymer melt and differ from pressure drop during spinneret orifice of different shapes outflow of same spinneret
Cause so that there is difference in the extruded velocity between the different fiber of component, therefore obtained composite filament can all occur fiber number it is irregular,
Intensity not uniform uneven dyeing phenomena such as, influence fibre spinning processing be smoothed out.
Polyethylene terephthalate (PET) is a kind of polymer of function admirable, and PET is high, strong with modulus because of it
The advantages that degree is high, conformality is good and barrier property is good, is widely used in the fields such as fiber, bottle packaging, film and sheet material, yield
Cumulative year after year, position in industry are obviously improved.Cation dyeable polyester (CDP) has good spinning properties, while spinning is made
Fiber stainability it is good, and there is good anti-fluffing and anti-pilling effect, acrylic fibers can be substituted, be widely used in Dan Maifang or sheep
More wheats such as the raw materials such as hair, cotton, fiber crops are spun into the fiber products such as various yarns, knitting wool, artificial fur, knitwear, woollen blanket, carpet.
Two kinds of color and lusters can be produced during by PET fiber and CDP fiber composites, after obtained composite filament warp-knit cloth in fabric face alternately to change
Effect, different cationic proportions can reach different two-color effects, and such as heterochromatic, depth, be left white, and can obtain different
The two-color effects such as striped, grid, jacquard weave, make fabric style more diversified.
Therefore how to overcome foreign components composite filament produce and process existing for difficult realize the compound of PET fiber and CDP fibers
Preparing the sun that color and luster enriches and washing composite filament becomes current urgent problem to be solved.
The content of the invention
The problem of the purpose of the invention is to overcome color and luster existing for fiber of the prior art single, there is provided Yi Zhongse
Pool is abundant and sun best in quality washs composite filament and preparation method thereof.The present invention is by using being provided with two kinds of special shapes
Spinneret orifice and the microcell length of two kinds of spinneret orifices, the size of cross-sectional area and section girth and flow through two kinds of spinneret orifices
Material consistency coefficient have certain contact composite spinneret, the progress that spinning is smoothly stablized is ensure that, from same spinneret
Contain PET monofilament and CDP monofilament at the same time in the mass of fibers of plate extrusion, thus sun wash composite filament taken into account PET monofilament modulus height,
The advantages of intensity is high, conformality is good and CDP monofilament stainability is good, and due to the difference of the two dyeing property can obtain it is abundant
Color and luster, solve thes problems, such as that color and luster existing for fiber of the prior art is single.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：
A kind of sun washs composite filament, and a branch of sun that same spinneret is extruded is washed mono- containing PET monofilament and CDP at the same time in composite filament
Silk.
As preferable technical solution：
A kind of sun as described above washs composite filament, and the fiber number of the PET monofilament is 0.20~0.5dtex, the CDP monofilament
Fiber number be 0.20~0.50dtex.
A kind of sun as described above washs composite filament, and the fiber number that the sun washs composite filament is 75~150dtex, and fracture strength >=
3.2cN/dtex, elongation at break are 38.0 ± 3.0%, and line density deviation ratio≤0.5%, fracture strength CV value≤4.0%, breaks
Split elongation CV value≤8.0%, yarn unevenness CV value≤2.0%, boiling water shrinkage be 7.5 ± 0.5%, oil content be 0.90 ±
0.20%.
Present invention also offers a kind of method for preparing sun as described above and washing composite filament, and PET melt and CDP melts are passed through
Metering, composite spinneret are extruded, cooled down, oiling, stretching, thermal finalization and winding are made sun and wash composite filament；
As preferable technical solution：
Two kinds of different spinneret orifice A and spinneret orifice B are equipped with the composite spinneret at the same time；The spinneret orifice A and spinneret
The microcell length ratio of hole B is equal to the ratio between equivalent diameter of spinneret orifice A and spinneret orifice B with COEFFICIENT K and flows through the material of spinneret orifice B
Expect and flow through the product of the ratio between the consistency coefficient of material of spinneret orifice A；The equivalent diameter is the cross-sectional area and horizontal stroke of spinneret orifice
The ratio of perimeter of section, the value range of the COEFFICIENT K is 0.97~1.03；
The composite spinneret extrusion refers to that PET melt is extruded from spinneret orifice A, and CDP melts are extruded from spinneret orifice B, or
Refer to that PET melt is extruded from spinneret orifice B, CDP melts are extruded from spinneret orifice A.
Method as described above, the microcell length of the spinneret orifice A or spinneret orifice B are 0.30~2.08mm, the spinneret
The equivalent diameter of hole A or spinneret orifice B are 0.15~0.52mm.
Method as described above, the spinneret orifice A or spinneret orifice B are independently selected from diesis shape, circle, triangle
Shape, linear type, king's font, cross, hollow shape, five leaf and trilobal spinneret orifices.The shape of spinneret orifice includes in the present invention
But not limited to this, it disclosure satisfy that the microcell length ratio of two kinds of different spinneret orifices is equal to its equivalent diameter and K and flows through spray
The material of wire hole B and flow through the ratio between the consistency coefficient of material of spinneret orifice A product spinneret orifice all can as the present invention spray
Wire hole.
Method as described above, all spinneret orifices concentric arrays on spinneret, other arrangement modes are equally applicable
In the present invention, key point of the invention is the relation between two kinds of spinneret pore sizes, specific shape of spinneret and spinneret orifice
Arrangement mode etc. all refers to the prior art, and the center of circle or the circumscribed circle center of circle of all spinneret orifices are located on concentric circles, described same
Heart circle is equidistant concentric circles, and the spinneret orifice on same annulus equidistantly arranges.
Method as described above, the spinneret orifice on same annulus are all spinneret orifice A or spinneret orifice B, on two neighboring annulus
The shape of spinneret orifice differ, the arrangement mode of spinneret orifice can also be adjusted according to the actual requirements, such as can connect
The spinneret orifice continued on two annulus is all spinneret orifice A, and the spinneret orifice on continuous two annulus adjacent thereto is all spinneret orifice B,
Can also be that spinneret orifice on an annulus is all spinneret orifice A, the spinneret orifice on continuous three annulus adjacent thereto is all spray
Wire hole B, can also be other irregular arrangement modes；
Alternatively, contain spinneret orifice A and spinneret orifice B on same annulus at the same time, spinneret orifice A and spinneret orifice B on same annulus
The quantity ratio of quantity ratio or spinneret orifice B and spinneret orifice A are 1~10:1.The quantity ratio of two kinds of spinneret orifices can root on same annulus
It is adjusted according to the performance of final obtained fiber, such as final obtained fiber needs more to protrude the corresponding fibers of spinneret orifice A
Performance when, then increase the quantity of spinneret orifice A, it is necessary to during the performance of the corresponding fibers of more prominent spinneret orifice B, then increase spinneret orifice
The quantity of B.
Method as described above, the spinning technology parameter that the sun washs composite filament are as follows：
Spinning temperature：280~290 DEG C；
Cooling temperature：20~25 DEG C；
Network pressure：0.20~0.30MPa；
One roller speed：2200~2600m/min
One roll temperature：75~85 DEG C；
Two roller speeds：3600~3900m/min；
Two roll temperatures：135~165 DEG C；
The speed of winding：3550~3840m/min；
The initial pressure of filament spinning component is 120bar, and pressure rises Δ P≤0.6bar/ days.
Invention mechanism：
Polymer melt is non-newtonian fluid, is viscoelastic fluid, while it makees stickiness flowing in spinneret orifice, will be sent out
Elastic deformation is given birth to, and elastically-deformable presence is one of unstable key factor of spinning.The microcell length of spinneret orifice with it is transversal
The storage and relaxation degree to elasticity energy in melt such as the girth in face and the cross-sectional area of spinneret orifice has a significant impact, the present invention
By setting on same spinneret the microcell length of two kinds of spinneret orifices, cross-sectional area and section girth and by two kinds of spinneret orifices
Size and flow through the material consistency coefficients of two kinds of spinneret orifices and establish certain contact, realize melt elasticity can relaxation,
So that it identical by pressure drop during different spinneret orifices, reduces melt in the pressure in exit and puffing, from
And it ensure that melt spinning and smoothly stably carry out.
When melt passes through the spinneret orifice of spinneret, the calculation formula of melt pressure drop is as follows：
In formula, Δ P is that the pressure of melt drops, SIt is interiorFor spinneret orifice inner wall area, its value be equal to the microcell length of spinneret orifice with
The product of the section girth of spinneret orifice, SCutFor the cross-sectional area of spinneret orifice, τ is the viscous fluid shear stress of material, its
Middle τ=λ γ, λ are the consistency coefficient of material, and γ is shear rate.
For the two kinds of polymer melt by variform spinneret orifice A and spinneret orifice B on same spinneret, to make to melt
The speed that body is extruded from different spinneret orifices is consistent or difference is smaller, it is necessary to assure it is during by different spinneret orifices
Pressure drop is identical or differs within the specific limits, i.e. Δ PA=K Δs PB, therefore wherein COEFFICIENT K=0.97~1.03, can be derived
The girth of the microcell length of different spinneret orifices and its spinneret orifice cross section, spinneret orifice cross-sectional area and flow through two kinds of spinneret orifices
Material consistency coefficient relation, i.e.,：
In formula, D is the microcell length of spinneret orifice, and S is the cross-sectional area of spinneret orifice, and L is the week of the cross section of spinneret orifice
It is long, λATo flow through the consistency coefficient of the material of spinneret orifice A, λBTo flow through the consistency coefficient of the material of spinneret orifice B.
The present invention is by using the microcell length of the spinneret orifice for being provided with two kinds of special shapes and two kinds of spinneret orifices, horizontal stroke
The size of area of section and section girth and the material consistency coefficient for flowing through two kinds of spinneret orifices have answering for certain contact
Spinneret is closed, the progress that spinning is smoothly stablized is ensure that, solves foreign components composite filament in spinning process, because of different melt
The problems such as fiber caused by pressure drop is inconsistent during extrusion molding is irregular, intensity is irregular, uneven dyeing, improves the stabilization of product
Property, realize PET and CDP melts extrudes from the different spinneret orifices of same spinneret at the same time, ensure that spinning processing it is smooth into
Row and composite filament have excellent comprehensive performance and abundant color and luster.
Beneficial effect：
(1) a kind of sun of the invention washs composite filament, combines terylene and CDP fiber advantages, and due to terylene and CDP fibers
The difference of dyeing property can obtain abundant color and luster, have fabulous promotional value.
(2) a kind of sun of the invention washs the preparation method of composite filament, and PET monofilament and CDP monofilament are extruded by composite spinneret,
By setting two kinds of microcell lengths, cross-sectional areas spinneret orifice different with section girth on composite spinneret and by two kinds
The size of spinneret orifice and flow through the material consistency coefficients of two kinds of spinneret orifices and establish certain contact, ensure that polymer melt exists
It is essentially identical by the pressure drop during different spinneret orifices, so that melt is from the extruded velocity basic one in spinneret orifice
Cause, so as to ensure that its spinning smoothly stably carries out.
Brief description of the drawings
Fig. 1 is the spinneret orifice arrangement mode schematic diagram of the composite spinneret of the embodiment of the present invention 1；
Fig. 2 is the spinneret orifice arrangement mode schematic diagram of the composite spinneret of the embodiment of the present invention 2；
Fig. 3 is the spinneret orifice arrangement mode schematic diagram of the composite spinneret of the embodiment of the present invention 3.
Embodiment
The invention will be further elucidated with reference to specific embodiments.It is to be understood that these embodiments are merely to illustrate this hair
It is bright rather than limit the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, art technology
Personnel can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Fixed scope.
Embodiment 1
A kind of sun washs the preparation method of composite filament, and PET melt and CDP melts are extruded through metering, composite spinneret, is cold
But, oil, stretch, thermal finalization and winding be made sun wash composite filament, wherein on composite spinneret at the same time be equipped with two kinds of different sprays
The microcell length ratio of wire hole A and spinneret orifice B, spinneret orifice A and spinneret orifice B be equal to spinneret orifice A and spinneret orifice B equivalent diameter it
Than with COEFFICIENT K and flow through the material of spinneret orifice B and flow through spinneret orifice A the ratio between the consistency coefficient of material product, equivalent is straight
Footpath is the cross-sectional area of spinneret orifice and the ratio of section girth, and the value of COEFFICIENT K is 1.01, and composite spinneret extrusion refers to
PET melt is extruded from spinneret orifice A, and CDP melts are extruded from spinneret orifice B, and the wherein microcell length of spinneret orifice A is 1.86mm, spinneret
The microcell length of hole B is 1.30mm, and the equivalent diameter of spinneret orifice A is 0.35mm, the consistency coefficient of PET melt and CDP melts it
Than for 0.7, spinneret orifice A is diesis shape spinneret orifice, and spinneret orifice B is trilobal spinneret orifice, and all spinneret orifices are on spinneret
Concentric arrays, the center of circle of all spinneret orifices are located on concentric circles, and concentric circles is equidistant concentric circles, the spray on same annulus
Wire hole equidistantly arranges, and the arrangement schematic diagram of spinneret orifice as shown in Figure 1, contain spinneret orifice A and spinneret orifice at the same time on same annulus
B, the quantity ratio of spinneret orifice A and spinneret orifice B is 3 on same annulus:1, the spinning technology parameter that sun washs composite filament is as follows：
PET spinning temperatures：285℃；
CDP spinning temperatures：270℃；
Cooling temperature：22℃；
Network pressure：0.25MPa；
One roller speed：2400m/min
One roll temperature：80℃；
Two roller speeds：3700m/min；
Two roll temperatures：150℃；
The speed of winding：3650m/min；
The initial pressure of filament spinning component is 120bar, and it is 0.58bar/ days that pressure, which rises Δ P,.
Final obtained a branch of sun through same spinneret extrusion is washed contains PET monofilament and CDP monofilament at the same time in composite filament,
The fiber number of PET monofilament is 0.35dtex, and the fiber number of CDP monofilament is 0.4dtex, and the fiber number that obtained sun washs composite filament is
120dtex, initial modulus 55cN/dtex, fracture strength 3.4cN/dtex, elongation at break 38.0%, line density is inclined
Rate is 0.45%, and fracture strength CV values are 3.8%, and extension at break CV values are 7.5%, and yarn unevenness CV values are 1.9%, boiling
Water shrinking percentage is 7.8%, oil content 1.0%.
Embodiment 2
A kind of sun washs the preparation method of composite filament, and PET melt and CDP melts are extruded through metering, composite spinneret, is cold
But, oil, stretch, thermal finalization and winding be made sun wash composite filament, wherein on composite spinneret at the same time be equipped with two kinds of different sprays
The microcell length ratio of wire hole A and spinneret orifice B, spinneret orifice A and spinneret orifice B be equal to spinneret orifice A and spinneret orifice B equivalent diameter it
Than with COEFFICIENT K and flow through the material of spinneret orifice B and flow through spinneret orifice A the ratio between the consistency coefficient of material product, equivalent is straight
Footpath is the cross-sectional area of spinneret orifice and the ratio of section girth, and the value of COEFFICIENT K is 0.97, and composite spinneret extrusion refers to
PET melt is extruded from spinneret orifice B, and CDP melts are extruded from spinneret orifice A, and the wherein microcell length of spinneret orifice B is 0.35mm, spinneret
The microcell length of hole A is 0.30mm, and the equivalent diameter of spinneret orifice B is 0.15mm, the consistency coefficient of PET melt and CDP melts it
Than for 0.86, spinneret orifice A is circular spinneret orifice, spinneret orifice B be five leaf spinneret orifices, and all spinneret orifices are concentric on spinneret
Circle best-fit, the circumscribed circle center of circle of all spinneret orifices are located on concentric circles, and concentric circles is equidistant concentric circles, on same annulus
Spinneret orifice equidistantly arranges, the arrangement schematic diagram of spinneret orifice as shown in Fig. 2, spinneret orifice on same annulus all for spinneret orifice A or
Spinneret orifice B, the shape of the spinneret orifice on two neighboring annulus differ, and the spinning technology parameter that sun washs composite filament is as follows：
PET spinning temperatures：280℃；
CDP spinning temperatures：265℃；
Cooling temperature：20℃；
Network pressure：0.20MPa；
One roller speed：2200m/min
One roll temperature：75℃；
Two roller speeds：3600m/min；
Two roll temperatures：135℃；
The speed of winding：3550m/min；
The initial pressure of filament spinning component is 120bar, and it is 0.56bar/ days that pressure, which rises Δ P,.
Final obtained a branch of sun through same spinneret extrusion is washed contains PET monofilament and CDP monofilament at the same time in composite filament,
The fiber number of PET monofilament is 0.2dtex, and the fiber number of CDP monofilament is 0.2dtex, and the fiber number that obtained sun washs composite filament is 75dtex,
Initial modulus is 54cN/dtex, fracture strength 3.2cN/dtex, elongation at break 35.0%, and line density deviation ratio is
0.45%, fracture strength CV value are 3.6%, and extension at break CV values are 7.2%, and yarn unevenness CV values are 1.8%, boiling shrinkage
Rate is 7.0%, oil content 0.7%.
Embodiment 3
A kind of sun washs the preparation method of composite filament, and PET melt and CDP melts are extruded through metering, composite spinneret, is cold
But, oil, stretch, thermal finalization and winding be made sun wash composite filament, wherein on composite spinneret at the same time be equipped with two kinds of different sprays
The microcell length ratio of wire hole A and spinneret orifice B, spinneret orifice A and spinneret orifice B be equal to spinneret orifice A and spinneret orifice B equivalent diameter it
Than with COEFFICIENT K and flow through the material of spinneret orifice B and flow through spinneret orifice A the ratio between the consistency coefficient of material product, equivalent is straight
Footpath is the cross-sectional area of spinneret orifice and the ratio of section girth, and the value of COEFFICIENT K is 1.03, and composite spinneret extrusion refers to
PET melt is extruded from spinneret orifice A, and CDP melts are extruded from spinneret orifice B, and the wherein microcell length of spinneret orifice A is 2.08mm, spinneret
The microcell length of hole B is 1.39mm, and the equivalent diameter of spinneret orifice A is 0.52mm, the consistency coefficient of PET melt and CDP melts it
Than for 0.67, spinneret orifice A is triangle spinneret orifice, spinneret orifice B is hollow shape spinneret orifice, and all spinneret orifices are same on spinneret
Heart circle best-fit, the center of circle of all spinneret orifices are located on concentric circles, and concentric circles is equidistant concentric circles, the spinneret on same annulus
Hole equidistantly arranges, the arrangement schematic diagram of spinneret orifice as shown in figure 3, contain spinneret orifice A and spinneret orifice B on same annulus at the same time,
The quantity ratio of spinneret orifice A and spinneret orifice B is 1 on same annulus:1, the spinning technology parameter that sun washs composite filament is as follows：
PET spinning temperatures：290℃；
CDP spinning temperatures：275℃；
Cooling temperature：25℃；
Network pressure：0.30MPa；
One roller speed：2600m/min
One roll temperature：85℃；
Two roller speeds：3900m/min；
Two roll temperatures：165℃；
The speed of winding：3840m/min；
The initial pressure of filament spinning component is 120bar, and it is 0.6bar/ days that pressure, which rises Δ P,.
Final obtained a branch of sun through same spinneret extrusion is washed contains PET monofilament and CDP monofilament at the same time in composite filament,
The fiber number of PET monofilament is 0.5dtex, and the fiber number of CDP monofilament is 0.5dtex, and the fiber number that obtained sun washs composite filament is
150dtex, initial modulus 60cN/dtex, fracture strength 3.5cN/dtex, elongation at break 41.0%, line density is inclined
Rate is 0.5%, and fracture strength CV values are 4.0%, and extension at break CV values are 8.0%, and yarn unevenness CV values are 2.0%, boiling
Water shrinking percentage is 8.0%, oil content 1.1%.
Embodiment 4
A kind of sun washs the preparation method of composite filament, and PET melt and CDP melts are extruded through metering, composite spinneret, is cold
But, oil, stretch, thermal finalization and winding be made sun wash composite filament, wherein on composite spinneret at the same time be equipped with two kinds of different sprays
The microcell length ratio of wire hole A and spinneret orifice B, spinneret orifice A and spinneret orifice B be equal to spinneret orifice A and spinneret orifice B equivalent diameter it
Than with COEFFICIENT K and flow through the material of spinneret orifice B and flow through spinneret orifice A the ratio between the consistency coefficient of material product, equivalent is straight
Footpath is the cross-sectional area of spinneret orifice and the ratio of section girth, and the value of COEFFICIENT K is 0.99, and composite spinneret extrusion refers to
PET melt is extruded from spinneret orifice A, and CDP melts are extruded from spinneret orifice B, and the wherein microcell length of spinneret orifice A is 1.34mm, spinneret
The microcell length of hole B is 0.76mm, and the equivalent diameter of spinneret orifice A is 0.37mm, the consistency coefficient of PET melt and CDP melts it
Than for 0.57, spinneret orifice A is linear type spinneret orifice, spinneret orifice B is cross shaped spinneret orifice, and all spinneret orifices are same on spinneret
Heart circle best-fit, the center of circle of all spinneret orifices are located on concentric circles, and concentric circles is equidistant concentric circles, the spinneret on same annulus
Hole equidistantly arranges, and the spinneret orifice on same annulus is all spinneret orifice A or spinneret orifice B, the spinneret orifice on two neighboring annulus
Shape differs, and the spinning technology parameter that sun washs composite filament is as follows：
PET spinning temperatures：282℃；
CDP spinning temperatures：268℃；
Cooling temperature：21℃；
Network pressure：0.22MPa；
One roller speed：2300m/min
One roll temperature：76℃；
Two roller speeds：3700m/min；
Two roll temperatures：140℃；
The speed of winding：3650m/min；
The initial pressure of filament spinning component is 120bar, and it is 0.57bar/ days that pressure, which rises Δ P,.
Final obtained a branch of sun through same spinneret extrusion is washed contains PET monofilament and CDP monofilament at the same time in composite filament,
The fiber number of PET monofilament is 0.25dtex, and the fiber number of CDP monofilament is 0.28dtex, and the fiber number that obtained sun washs composite filament is
90dtex, initial modulus 55cN/dtex, fracture strength 3.35cN/dtex, elongation at break 37.0%, line density is inclined
Rate is 0.46%, and fracture strength CV values are 3.65%, and extension at break CV values are 7.3%, and yarn unevenness CV values are 1.82%,
Boiling water shrinkage is 7.2%, oil content 0.96%.
Embodiment 5
A kind of sun washs the preparation method of composite filament, and PET melt and CDP melts are extruded through metering, composite spinneret, is cold
But, oil, stretch, thermal finalization and winding be made sun wash composite filament, wherein on composite spinneret at the same time be equipped with two kinds of different sprays
The microcell length ratio of wire hole A and spinneret orifice B, spinneret orifice A and spinneret orifice B be equal to spinneret orifice A and spinneret orifice B equivalent diameter it
Than with COEFFICIENT K and flow through the material of spinneret orifice B and flow through spinneret orifice A the ratio between the consistency coefficient of material product, equivalent is straight
Footpath is the cross-sectional area of spinneret orifice and the ratio of section girth, and the value of COEFFICIENT K is 1.01, and composite spinneret extrusion refers to
PET melt is extruded from spinneret orifice B, and CDP melts are extruded from spinneret orifice A, and the wherein microcell length of spinneret orifice A is 0.7mm, spinneret orifice
The microcell length of B is 1.03mm, and the equivalent diameter of spinneret orifice A is 0.25mm, the ratio between PET melt and consistency coefficient of CDP melts
For 0.7, spinneret orifice A is king's font spinneret orifice, and spinneret orifice B is king's font spinneret orifice, all spinneret orifices on spinneret with one heart
Circle best-fit, the circumscribed circle center of circle of all spinneret orifices are located on concentric circles, and concentric circles is equidistant concentric circles, on same annulus
Spinneret orifice equidistantly arranges, and contains spinneret orifice A and spinneret orifice B on same annulus at the same time, spinneret orifice A and spinneret orifice on same annulus
The quantity ratio of B is 10:1, the spinning technology parameter that sun washs composite filament is as follows：
PET spinning temperatures：286℃；
CDP spinning temperatures：269℃；
Cooling temperature：23℃；
Network pressure：0.26MPa；
One roller speed：2400m/min
One roll temperature：78℃；
Two roller speeds：3800m/min；
Two roll temperatures：145℃；
The speed of winding：3730m/min；
The initial pressure of filament spinning component is 120bar, and it is 0.58bar/ days that pressure, which rises Δ P,.
Final obtained a branch of sun through same spinneret extrusion is washed contains PET monofilament and CDP monofilament at the same time in composite filament,
The fiber number of PET monofilament is 0.3dtex, and the fiber number of CDP monofilament is 0.32dtex, and the fiber number that obtained sun washs composite filament is
110dtex, initial modulus 56cN/dtex, fracture strength 3.4cN/dtex, elongation at break 39.0%, line density is inclined
Rate is 0.46%, and fracture strength CV values are 3.7%, and extension at break CV values are 7.7%, and yarn unevenness CV values are 1.85%,
Boiling water shrinkage is 7.8%, oil content 1.01%.
Embodiment 6
A kind of sun washs the preparation method of composite filament, and PET melt and CDP melts are extruded through metering, composite spinneret, is cold
But, oil, stretch, thermal finalization and winding be made sun wash composite filament, wherein on composite spinneret at the same time be equipped with two kinds of different sprays
The microcell length ratio of wire hole A and spinneret orifice B, spinneret orifice A and spinneret orifice B be equal to spinneret orifice A and spinneret orifice B equivalent diameter it
Than with COEFFICIENT K and flow through the material of spinneret orifice B and flow through spinneret orifice A the ratio between the consistency coefficient of material product, equivalent is straight
Footpath is the cross-sectional area of spinneret orifice and the ratio of section girth, and the value of COEFFICIENT K is 1.02, and composite spinneret extrusion refers to
PET melt is extruded from spinneret orifice A, and CDP melts are extruded from spinneret orifice B, and the wherein microcell length of spinneret orifice B is 1.12mm, spinneret
The microcell length of hole A is 1.54mm, and the equivalent diameter of spinneret orifice B is 0.50mm, the consistency coefficient of PET melt and CDP melts it
Than for 0.72, spinneret orifice A is cross shaped spinneret orifice, spinneret orifice B is cross shaped spinneret orifice, and all spinneret orifices are same on spinneret
Heart circle best-fit, the center of circle of all spinneret orifices are located on concentric circles, and concentric circles is equidistant concentric circles, the spinneret on same annulus
Hole equidistantly arranges, and contains spinneret orifice A and spinneret orifice B on same annulus at the same time, spinneret orifice A and spinneret orifice B on same annulus
Quantity ratio is 8:1, the spinning technology parameter that sun washs composite filament is as follows：
PET spinning temperatures：288℃；
CDP spinning temperatures：272℃；
Cooling temperature：24℃；
Network pressure：0.28MPa；
One roller speed：2500m/min
One roll temperature：83℃；
Two roller speeds：3850m/min；
Two roll temperatures：163℃；
The speed of winding：3800m/min；
The initial pressure of filament spinning component is 120bar, and it is 0.59bar/ days that pressure, which rises Δ P,.
Final obtained a branch of sun through same spinneret extrusion is washed contains PET monofilament and CDP monofilament at the same time in composite filament,
The fiber number of PET monofilament is 0.45dtex, and the fiber number of CDP monofilament is 0.405dtex, and the fiber number that obtained sun washs composite filament is
140dtex, initial modulus 58cN/dtex, fracture strength 3.5cN/dtex, elongation at break 40.0%, line density is inclined
Rate is 0.46%, and fracture strength CV values are 3.8%, and extension at break CV values are 8.0%, and yarn unevenness CV values are 1.9%, boiling
Water shrinking percentage is 7.8%, oil content 1.05%.
Claims (9)
1. a kind of sun washs composite filament, it is characterized in that：A branch of sun of same spinneret extrusion is washed contains PET monofilament at the same time in composite filament
With CDP monofilament.
2. a kind of sun according to claim 1 washs composite filament, it is characterised in that the fiber number of the PET monofilament for 0.20~
0.5dtex, the fiber number of the CDP monofilament is 0.20~0.50dtex.
3. a kind of sun according to claim 1 or 2 washs composite filament, it is characterised in that the fiber number that the sun washs composite filament is
75~150dtex, fracture strength >=3.2cN/dtex, elongation at break are 38.0 ± 3.0%, line density deviation ratio≤0.5%,
Fracture strength CV value≤4.0%, extension at break CV value≤8.0%, yarn unevenness CV value≤2.0%, boiling water shrinkage 7.5
± 0.5%, oil content is 0.90 ± 0.20%.
4. the method for washing composite filament such as a kind of sun of claims 1 to 3 any one of them is prepared, it is characterized in that：By PET melt and
CDP melts are extruded through metering, composite spinneret, cooled down, oiling, stretching, thermal finalization and winding are made sun and wash composite filament；
Two kinds of different spinneret orifice A and spinneret orifice B are equipped with the composite spinneret at the same time；The spinneret orifice A and spinneret orifice B's
Microcell length ratio be equal to the ratio between equivalent diameter of spinneret orifice A and spinneret orifice B and COEFFICIENT K and flow through the material of spinneret orifice B with
Flow through the product of the ratio between the consistency coefficient of material of spinneret orifice A；Cross-sectional area and cross section of the equivalent diameter for spinneret orifice
The ratio of girth, the value range of the COEFFICIENT K is 0.97~1.03；
The composite spinneret extrusion refers to that PET melt is extruded from spinneret orifice A, and CDP melts are extruded from spinneret orifice B, or are referred to
PET melt is extruded from spinneret orifice B, and CDP melts are extruded from spinneret orifice A.
5. according to the method described in claim 4, it is characterized in that, the microcell length of the spinneret orifice A or spinneret orifice B is 0.30
The equivalent diameter of~2.08mm, the spinneret orifice A or spinneret orifice B are 0.15~0.52mm.
6. according to the method described in claim 5, it is characterized in that, the spinneret orifice A or spinneret orifice B are independently selected from
Diesis shape, circle, triangle, linear type, king's font, cross, hollow shape, five leaf and trilobal spinneret orifices.
7. according to the method described in claim 6, it is characterized in that, all spinneret orifices concentric arrays on spinneret, institute
The center of circle or the circumscribed circle center of circle of some spinneret orifices are located on concentric circles, and the concentric circles is equidistant concentric circles, on same annulus
Spinneret orifice equidistantly arrange.
8. the method according to the description of claim 7 is characterized in that the spinneret orifice on same annulus is all spinneret orifice A or spinneret
Hole B, the shape of the spinneret orifice on two neighboring annulus differ；
Alternatively, contain spinneret orifice A and spinneret orifice B on same annulus at the same time, the quantity of spinneret orifice A and spinneret orifice B on same annulus
Than or the quantity ratio of spinneret orifice B and spinneret orifice A be 1~10:1.
9. according to claim 4~8 any one of them method, it is characterised in that the sun washs the spinning technique ginseng of composite filament
Number is as follows：
Spinning temperature：280~290 DEG C；
Cooling temperature：20~25 DEG C；
Network pressure：0.20~0.30MPa；
One roller speed：2200~2600m/min
One roll temperature：75~85 DEG C；
Two roller speeds：3600~3900m/min；
Two roll temperatures：135~165 DEG C；
The speed of winding：3550~3840m/min；
The initial pressure of filament spinning component is 120bar, and pressure rises Δ P≤0.6bar/ days.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711341943.0A CN107916462A (en) | 2017-12-14 | 2017-12-14 | A kind of sun washs composite filament and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711341943.0A CN107916462A (en) | 2017-12-14 | 2017-12-14 | A kind of sun washs composite filament and preparation method thereof |
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| CN111058299A (en) * | 2019-12-31 | 2020-04-24 | 深圳市宏翔新材料发展有限公司 | Preparation method of air-permeable and moisture-permeable coated fabric |
| CN111101235A (en) * | 2019-12-24 | 2020-05-05 | 江苏恒力化纤股份有限公司 | CDP/PET double-component composite filament by one-step method and preparation method thereof |
| TWI714133B (en) * | 2019-06-20 | 2020-12-21 | 越南商越南百宏責任有限公司 | Manufacturing method of knitted fabric and structure thereof |
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Application publication date: 20180417 |