CN107794581A - Composite spinneret - Google Patents
Composite spinneret Download PDFInfo
- Publication number
- CN107794581A CN107794581A CN201711340276.4A CN201711340276A CN107794581A CN 107794581 A CN107794581 A CN 107794581A CN 201711340276 A CN201711340276 A CN 201711340276A CN 107794581 A CN107794581 A CN 107794581A
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- Prior art keywords
- spinneret
- spinneret orifice
- orifice
- composite
- ratio
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/02—Spinnerettes
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The present invention relates to a kind of composite spinneret, two kinds of different spinneret orifice A and B are provided with spinneret simultaneously, product of the ratio between the equivalent diameter of spinneret orifice A and B microcell length ratio 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, COEFFICIENT K is 0.97~1.03, wherein spinneret orifice A or B microcell length is 0.30~2.08mm, and equivalent diameter is 0.15~0.52mm.A kind of composite spinneret of the present invention, by setting microcell length, cross-sectional area and the section girth of two kinds of spinneret orifices and by the size of the two and flowing through the material consistency coefficients of two kinds of spinneret orifices and establish certain contact, it ensure that pressure drop of the polymer melt during by same spinneret difference spinneret orifice is essentially identical, so that melt is basically identical from the extruded velocity in spinneret orifice, spinning can be smoothed out.
Description
Technical field
The invention belongs to spinning instrument field, is related to a kind of composite spinneret.
Background technology
Because general fibre has the defects of a certain degree of aspect of performance mostly, and fiber heteromorphosis technology can improve
The added value of fiber, so as to play a part of improving fibre property, therefore, in recent years, the heteromorphosis technology of fiber is always to grind
Study carefully the study hotspot of personnel.Fiber heteromorphosis technology mainly includes fibre section heteromorphosis, fibre three-dimensional curling and filament contraction
Heteromorphosis etc..The material of fiber influences the performance of fiber with shape facility, and the arrangement of fiber and fiber in the yarn influences yarn
Performance, the arrangement of yarn and yarn in fabric influences the performance of fabric, thus the shape facility of fiber be influence yarn and
The essence of fabric property, the improvement that there is the fiber of different cross section shape to be played for yarn and fabric is different,
Such as the fiber with triangular-section can reach the effect for changing fabric gloss, and the fiber with hollow profile section can
To greatly improve warming effect of fiber assembly etc..
But some difficult and deficiencies in terms of the research of profiled filament class textile also be present, on the one hand with single section shape
The function of the profiled filament of shape is relatively simple, mainly moisture absorbing and sweat releasing, weaving that is warming or fluffy etc., therefore being formed by its weaving
The function of product is also more single, on the other hand because the cross sectional shape of profiled filament is more special, therefore constrains profiled filament
Fine-denier, its filament number is often larger, also further have impact on the lifting of profiled filament class textile quality.In order to solve
Insufficient existing for existing profiled filament, researcher has carried out substantial amounts of research, by take different means this
Situation is improved.
In recent years, it is to solve the insufficient important hand of existing profiled filament with the double profiled filaments of plate or with the more double profiled filaments of plate
Section, the advantages of it can integrate two kinds of profiled filaments, meet people to profiled filament class textile high quality and functional diversities
Demand.Such as be combined the fiber with diesis section and the superfine Denier fibre with circular cross-section, have double ten
The fiber in word section has bigger bending modulus, can assign textile more preferably stiffness and dimensional stability, and has
The superfine Denier fibre of circular cross-section can then play a part of soft and silk and slide wherein, solve by the single fibre of cross sectional shape
Dimension weaves the problem of textile touch formed is poor or fiber easily lodges；By the fiber with hollow section with being cut with circle
The fine count fiber in face is combined, have hollow section fiber can not fine-denier, fiber number is big, and the space between fiber is larger,
Therefore its textile fabric is abundant, and feel is poor, and the fine count fiber with circular cross-section is embedded in the fiber with hollow section
Space between, while its warming effect is improved, also add the function of moisture absorbing and sweat releasing, its textile fabric can be made
Lightweight；Fiber with king's word section is combined with the fine count fiber with circular cross-section, due to the hair between fiber
The increase of thin effect, while the function of moisture absorbing and sweat releasing is improved, can also make its textile fabric lightweight.
It is fine although thering is document and patent to carry out correlative study to the double profiled filaments of same plate or with the more double profiled filaments of plate
Dimension is difficult in actual production.It is viscoelastic fluid, it is in spinneret orifice because polymer melt is non-newtonian fluid
While making stickiness flowing, elastic deformation will occur, form certain pressure, therefore, polymer melt can produce after going out spinneret orifice
Raw certain pressure drop, the shape of spinneret orifice, size, length and mutual relation pair its pressure drop can all produce very big
Influence, the shape that existing research is general to only take into account spinneret orifice is identical or cross-sectional area is equal, and shape, size and length
Mutual influence is spent but without reference to so will result in of different shapes spinneret of the polymer melt from same spinneret
Pressure drop when hole is flowed out is inconsistent so that difference, therefore either POY occurs in the extruded velocity between the different fiber in section
Silk or FDY silks can all occur fiber number is irregular, intensity not uniform uneven dyeing phenomena such as, influence smoothly entering for fibre spinning processing
OK.
Therefore, research is a kind of can ensure the double profiled filaments of same plate or the filator with the more double smooth spinning of profiled filament of plate
Tool tool is of great significance.
The content of the invention
The purpose of the present invention is to overcome prior art existing with double profiled filaments of plate and can not with the more double profiled filaments of plate
The problem of smooth spinning processing, there is provided one kind can ensure the double profiled filaments of same plate and add with the more double smooth spinning of profiled filament of plate
The composite spinneret of work.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：
Composite spinneret, two kinds of different spinneret orifice A and spinneret orifice B are provided with simultaneously on spinneret；
The spinneret orifice A and spinneret orifice B microcell length ratio is equal to the ratio between spinneret orifice A and spinneret orifice B equivalent diameter
With COEFFICIENT K and flow through spinneret orifice B material and flow through the product of the ratio between the spinneret orifice A consistency coefficient of material；
The equivalent diameter for spinneret orifice cross-sectional area and section girth ratio, the value model of the COEFFICIENT K
Enclose for 0.97~1.03.
As preferable technical scheme：
Composite spinneret as described above, the microcell length of the spinneret orifice A or spinneret orifice B are 0.30~2.08mm, institute
The equivalent diameter for stating spinneret orifice A or spinneret orifice B is 0.15~0.52mm.
Composite spinneret as described above, the spinneret orifice A or spinneret orifice B are independently selected from diesis shape, circle
Shape, triangle, in-line, king's font, cross, hollow shape, five leaf and trilobal spinneret orifices.The shape of spinneret orifice in the present invention
Shape includes but is not limited to this, disclosure satisfy that two kinds of different spinneret orifices microcell length ratio be equal to its equivalent diameter and K and
The spinneret orifice for flowing through spinneret orifice B material and flowing through the product of the ratio between the spinneret orifice A consistency coefficient of material can all be used as this hair
Bright spinneret orifice.
Composite spinneret as described above, all spinneret orifices concentric arrays on spinneret, other arrangement modes are same
Sample is applied to the present invention, and key point of the invention is the relation between two kinds of spinneret orifice sizes, specific shape of spinneret and
Spinneret orifice arrangement mode etc. all refers to prior art.
Composite spinneret as described above, the center of circle or the circumscribed circle center of circle of all spinneret orifices are located on concentric circles, described
Concentric circles is equidistant concentric circles.
Composite spinneret as described above, the spinneret orifice on same annulus equidistantly arranges, i.e., adjacent two on same annulus
The distance between the center of circle or the circumscribed circle center of circle of individual spinneret orifice are equal.
Composite spinneret as described above, spinneret orifice on same annulus is all spinneret orifice A or spinneret orifice B, two neighboring
The shape of spinneret orifice on annulus differs.The arrangement mode of spinneret orifice can also be adjusted according to the actual requirements, such as can
Be spinneret orifice on continuous two annulus all for spinneret orifice A, the spinneret orifice on continuous two annulus adjacent thereto is all spray
Spinneret orifice on silk hole B or an annulus is all spinneret orifice A, the spinneret orifice on continuous three annulus adjacent thereto
All it is spinneret orifice B, can also be other irregular arrangement modes.
Composite spinneret as described above, contain spinneret orifice A and spinneret orifice B simultaneously on same annulus.
Composite spinneret as described above, spinneret orifice A and spinneret orifice B quantity ratio is 1 on same annulus:1.
Composite spinneret as described above, spinneret orifice A and spinneret orifice B quantity ratio or spinneret orifice B and spray on same annulus
Silk hole A quantity ratio is 3~10:1.On same annulus the quantity of two kinds of spinneret orifices than can the fiber according to made from final property
It can be adjusted, such as when final obtained fiber needs more to protrude the performance of fiber corresponding to spinneret orifice A, then increase spinneret orifice
A quantity then increases spinneret orifice B quantity, it is necessary to corresponding to more prominent spinneret orifice B during the performance of fiber.
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 drop in exit and expanded,
So as to ensure that melt spinning is smoothly stably carried 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 polymer melt by spinneret orifice A and spinneret orifice B different on same spinneret, to make melt from difference
The speed extruded in spinneret orifice is consistent or difference is smaller, it is necessary to assure its pressure drop phase during by different spinneret orifices
Together or differ within the specific limits, i.e. Δ PA=K Δs PB, therefore wherein COEFFICIENT K=0.97~1.03, can derive different spinnerets
The microcell length in hole and the girth and spinneret orifice cross-sectional area and the material for flowing through two kinds of spinneret orifices of its spinneret orifice cross section
The relation of consistency coefficient, 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 spinneret orifice A material, λBTo flow through the consistency coefficient of spinneret orifice B material.
Beneficial effect：
A kind of composite spinneret of the present invention, by setting the microcell length of two kinds of spinneret orifices on same spinneret, transversal
Face area and section girth simultaneously by the size of two kinds of spinneret orifices and flow through the material consistency coefficients of two kinds of spinneret orifices and establish one
It fixed contact, ensure that pressure drop of the polymer melt during by different spinneret orifices is essentially identical, and then cause molten
Body is basically identical from the extruded velocity in spinneret orifice, so as to ensure that its spinning is smoothly stably carried 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 should be understood that these embodiments are merely to illustrate this hair
Bright rather than limitation the scope of the present invention.In addition, it is to be understood that after the content of the invention lectured has been read, art technology
Personnel can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Fixed scope.
Embodiment 1
A kind of composite spinneret, be provided with two kinds of different spinneret orifice A and spinneret orifice B on spinneret simultaneously, spinneret orifice A is with spraying
Silk hole B microcell length ratio is equal to the ratio between spinneret orifice A and spinneret orifice B equivalent diameter and COEFFICIENT K and flows through spinneret orifice B's
Material and the product for flowing through the ratio between the spinneret orifice A consistency coefficient of material, equivalent diameter are the cross-sectional area and horizontal stroke of spinneret orifice
The span of the ratio of perimeter of section, wherein COEFFICIENT K is 0.97~1.03, and spinneret orifice A or spinneret orifice B microcell length are
0.30~2.08mm, spinneret orifice A or spinneret orifice B equivalent diameter are 0.15~0.52mm.Spinneret orifice A and spinneret orifice B are in spinneret
Concentric arrays on plate, and the spinneret orifice A and spinneret orifice B center of circle or the circumscribed circle center of circle are located on equidistant concentric circles, it is same
Spinneret orifice on annulus equidistantly arranges, i.e., on same annulus between the center of circle or the circumscribed circle center of circle of two neighboring spinneret orifice away from
From equal, the specific arrangement mode schematic diagram of its spinneret orifice is as shown in figure 1, shape of spinneret all same on same annulus, i.e.,
All it is spinneret orifice A or spinneret orifice B, the shape of the spinneret orifice on two neighboring annulus differs, and being shaped as wherein spinneret orifice A is double
Cross, spinneret orifice B's is shaped as king's font.
Embodiment 2
A kind of composite spinneret, basic structure is with embodiment 1, and difference is, its shape of spinneret and arrangement mode
Difference, schematic diagram on spinneret as shown in Fig. 2 contain spinneret orifice A and spinneret orifice B, wherein spinneret orifice A simultaneously on same annulus
Quantity ratio with spinneret orifice B is 1:1, spinneret orifice A's is shaped as triangle, and spinneret orifice B's is shaped as in-line.
Embodiment 3
A kind of composite spinneret, basic structure is with embodiment 2, and difference is, its shape of spinneret and arrangement mode
Difference, schematic diagram on spinneret as shown in figure 3, contain spinneret orifice A and spinneret orifice B, wherein spinneret orifice A simultaneously on same annulus
Quantity ratio with spinneret orifice B is 3:Being shaped as 1, spinneret orifice A is five leaf, and spinneret orifice B's is shaped as circle.
Embodiment 4
A kind of composite spinneret, basic structure is with embodiment 2, and difference is, the shape of its spinneret orifice and arrangement side
Formula is different, contains spinneret orifice A and spinneret orifice B, wherein spinneret orifice A and spinneret orifice B number on same annulus simultaneously on spinneret
Amount is than being 6:1, spinneret orifice A's is shaped as hollow shape, and spinneret orifice B's is shaped as cross.
Embodiment 5
A kind of composite spinneret, basic structure is with embodiment 2, and difference is, the shape of its spinneret orifice and arrangement side
Formula is different, contains spinneret orifice A and spinneret orifice B, wherein spinneret orifice A and spinneret orifice B number on same annulus simultaneously on spinneret
Amount is than being 10:1, spinneret orifice A's is shaped as trilobal, spinneret orifice B to be shaped as five leaf.
Claims (10)
1. composite spinneret, it is characterized in that：Two kinds of different spinneret orifice A and spinneret orifice B are provided with spinneret simultaneously；
The spinneret orifice A and spinneret orifice B microcell length ratio is equal to the ratio between spinneret orifice A and spinneret orifice B equivalent diameter with being
Count K and flow through spinneret orifice B material and flow through the product of the ratio between the spinneret orifice A consistency coefficient of material；
The equivalent diameter is the cross-sectional area of spinneret orifice and the ratio of section girth, and the span of the COEFFICIENT K is
0.97~1.03.
2. composite spinneret according to claim 1, it is characterised in that the microcell length of the spinneret orifice A or spinneret orifice B
For 0.30~2.08mm, the equivalent diameter of the spinneret orifice A or spinneret orifice B are 0.15~0.52mm.
3. composite spinneret according to claim 2, it is characterised in that the spinneret orifice A or spinneret orifice B are independently of one another
Selected from diesis shape, circle, triangle, in-line, king's font, cross, hollow shape, five leaf and trilobal spinneret orifices.
4. according to the composite spinneret described in any one of claims 1 to 3, it is characterised in that all spinneret orifices are in spinneret
Upper concentric arrays.
5. composite spinneret according to claim 4, it is characterised in that the center of circle or the circumscribed circle center of circle of all spinneret orifices
On concentric circles, the concentric circles is equidistant concentric circles.
6. composite spinneret according to claim 5, it is characterised in that the spinneret orifice on same annulus equidistantly arranges.
7. composite spinneret according to claim 6, it is characterised in that the spinneret orifice on same annulus is all spinneret orifice A
Or spinneret orifice B, the shape of the spinneret orifice on two neighboring annulus differ.
8. composite spinneret according to claim 6, it is characterised in that contain spinneret orifice A and spray on same annulus simultaneously
Silk hole B.
9. composite spinneret according to claim 8, it is characterised in that spinneret orifice A and spinneret orifice B number on same annulus
Amount is than being 1:1.
10. composite spinneret according to claim 8, it is characterised in that spinneret orifice A and spinneret orifice B on same annulus
Quantity ratio or spinneret orifice B and spinneret orifice A quantity ratio are 3~10:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711340276.4A CN107794581A (en) | 2017-12-14 | 2017-12-14 | Composite spinneret |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711340276.4A CN107794581A (en) | 2017-12-14 | 2017-12-14 | Composite spinneret |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107794581A true CN107794581A (en) | 2018-03-13 |
Family
ID=61537828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711340276.4A Withdrawn CN107794581A (en) | 2017-12-14 | 2017-12-14 | Composite spinneret |
Country Status (1)
| Country | Link |
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| CN (1) | CN107794581A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820060A (en) * | 2019-12-18 | 2020-02-21 | 太仓荣文合成纤维有限公司 | Special-shaped spinneret plate and manufacturing method thereof |
| CN111000289A (en) * | 2019-12-31 | 2020-04-14 | 深圳市宏翔新材料发展有限公司 | Preparation method of filter material |
| CN111101257A (en) * | 2019-12-29 | 2020-05-05 | 江苏恒力化纤股份有限公司 | Thermal fabric and preparation method thereof |
| CN111118632A (en) * | 2019-12-29 | 2020-05-08 | 江苏恒力化纤股份有限公司 | Rabbit hair-imitated PBT fiber and preparation method thereof |
| CN112575397A (en) * | 2020-12-08 | 2021-03-30 | 广东宝泓新材料股份有限公司 | Spinneret plate, equipment and method for manufacturing high-gram-weight spun-bonded hot-rolled non-woven fabric |
| WO2021128750A1 (en) * | 2019-12-24 | 2021-07-01 | 江苏恒力化纤股份有限公司 | One-step cdp/pet two-component composite filament and preparation method therefor |
| WO2021128754A1 (en) * | 2019-12-24 | 2021-07-01 | 江苏恒力化纤股份有限公司 | Parallel self-crimped elastic fiber and preparation method therefor |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820060A (en) * | 2019-12-18 | 2020-02-21 | 太仓荣文合成纤维有限公司 | Special-shaped spinneret plate and manufacturing method thereof |
| WO2021128750A1 (en) * | 2019-12-24 | 2021-07-01 | 江苏恒力化纤股份有限公司 | One-step cdp/pet two-component composite filament and preparation method therefor |
| WO2021128754A1 (en) * | 2019-12-24 | 2021-07-01 | 江苏恒力化纤股份有限公司 | Parallel self-crimped elastic fiber and preparation method therefor |
| JP2022550637A (en) * | 2019-12-24 | 2022-12-02 | 江蘇恒力化繊股▲ふん▼有限公司 | CDP/PET bicomponent composite fiber by direct drawing method and its production method |
| JP7255029B2 (en) | 2019-12-24 | 2023-04-10 | 江蘇恒力化繊股▲ふん▼有限公司 | Method for producing CDP/PET bicomponent side-by-side composite fiber by direct drawing method |
| CN111101257A (en) * | 2019-12-29 | 2020-05-05 | 江苏恒力化纤股份有限公司 | Thermal fabric and preparation method thereof |
| CN111118632A (en) * | 2019-12-29 | 2020-05-08 | 江苏恒力化纤股份有限公司 | Rabbit hair-imitated PBT fiber and preparation method thereof |
| CN111118632B (en) * | 2019-12-29 | 2021-12-17 | 江苏恒力化纤股份有限公司 | Rabbit hair-imitated PBT fiber and preparation method thereof |
| CN111101257B (en) * | 2019-12-29 | 2021-12-21 | 江苏恒力化纤股份有限公司 | Thermal fabric and preparation method thereof |
| CN111000289A (en) * | 2019-12-31 | 2020-04-14 | 深圳市宏翔新材料发展有限公司 | Preparation method of filter material |
| CN112575397A (en) * | 2020-12-08 | 2021-03-30 | 广东宝泓新材料股份有限公司 | Spinneret plate, equipment and method for manufacturing high-gram-weight spun-bonded hot-rolled non-woven fabric |
| CN112575397B (en) * | 2020-12-08 | 2022-02-08 | 广东宝泓新材料股份有限公司 | Spinneret plate, equipment and method for manufacturing high-gram-weight spun-bonded hot-rolled non-woven fabric |
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