CN201873785U - Oblate hollow fiber and spinneret plate - Google Patents
Oblate hollow fiber and spinneret plate Download PDFInfo
- Publication number
- CN201873785U CN201873785U CN2010205779461U CN201020577946U CN201873785U CN 201873785 U CN201873785 U CN 201873785U CN 2010205779461 U CN2010205779461 U CN 2010205779461U CN 201020577946 U CN201020577946 U CN 201020577946U CN 201873785 U CN201873785 U CN 201873785U
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- oblate
- circular arc
- doughnut
- spinnerets
- fiber
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Abstract
The utility model relates to oblate hollow fiber, the cross section of which is oblate, and the interior is hollow. The utility model further relates to a spinneret plate for the oblate hollow fiber, a spinning micro-pore of the spinneret plate consists of two sections of arc narrow slits which are symmetrical and arched outwards, and the distance between the adjacent ends of the two sections of arc narrow slits is 0.04-0.10mm. The utility model also relates to another spinneret plate for the oblate hollow fiber, a spinning micro-pore of the spinneret plate consists of four sections of arc narrow slits which are axisymmetrical and arched outwards, and the distance between the adjacent ends of the two sections of arc narrow slits is 0.04-0.10mm. With the oblate hollow fiber, the bulkiness of fiber under heavy load is improved really, the original shape of the fiber can be kept in high load, and the phenomenon that a fiber sheet becomes a felt after long-time use is restrained under the intertwisting function of the bulking fiber.
Description
Technical field
The utility model belongs to the synthetic fiber field that produces in the textile industry, relates to a kind of oblate doughnut and spinnerets.
Background technology
Cross sectional shape that the general fibre cross section is rounded, solid and structure, lack good suction, moisture pick-up properties, regain only is 0.4%, about fracture strength 5.0cN/dtex, extension at break 20～30%, initial modulus reaches 110cN/dtex, demonstrate the wet comfortableness of relatively poor heat, in high humidity, the condition of high temperature, can make the people that feeling of oppression and heat is arranged by this twice-laid clothes, mood is had the fidgets; Lack good sense of touch comfortableness, skin-friendly is relatively poor.
Cotton fiber not only has a large amount of hydrophilic radicals, and have the cross sectional shape of " kidney " shape and the cross section structure of hollow, degree of hollowness is 10%, regain reaches about 8.5%, the fineness and the length of cotton fiber are respectively: 1.5～2.0dtex and 25～35mm, fracture strength 2.0～2.5cN/dtex, extension at break 3～7%, initial modulus 26.5～62cN/dtex.This shows that cotton fiber and general fibre all exist than big-difference from the mechanical property and the moisture pick-up properties of macroscopical form and structure, fiber.
The emulation mode that manufacturing has with the special-shaped doughnut in the close cross section of natural fabric is widely adopted.This is because odd-shaped cross section makes appearance profile be irregular, makes polyester textile that fluffy sense be arranged, and has improved gloss effect and feel, has improved fabric breathability, pilling resistance.Hollow structure has reduced quality of fiber, has improved the heat-insulation warm keeping of fabric.Compare with single round doughnut, profiled filament and to have more superiority, fabric with this fiber making, its bulkiness is big by 15%～20% than common fabric, and anti-wear performance is higher 2 times than circular fiber, because of its structure special, also have excellent elastic recovery and latent dirty performance, so can be widely used as the fiberfill of carpet fiber, bed clothes and mat class and integrate the fiber of taking of warming, moisture absorption.
Summary of the invention
The purpose of this utility model provides a kind of fiber of imitative cotton knot structure and makes the spinnerets that this fiber is used, and a kind of oblate doughnut and spinnerets just are provided.
A kind of oblate doughnut of the present utility model, its cross-sectional profile are the oblate and inner cavity that is, described oblate lateral length is 1.7～4.0: 1 with the ratio of vertical width.
As optimized technical scheme:
Wherein, aforesaid a kind of oblate doughnut, described oblate doughnut cross-sectional profile is oval, its major axis is 1.7～4.0: 1 with the ratio of minor axis.
Aforesaid a kind of oblate doughnut, the degree of hollowness of described oblate doughnut is 15～22%.
Aforesaid a kind of oblate doughnut, the fiber number of described oblate doughnut is 0.8～3.0dtex.
The utility model also provides a kind of oblate doughnut spinnerets, the spray silk micropore of described spinnerets is made of two sections circular arc narrow slits of symmetry, the central angle of the external arc of described circular arc narrow slit is 50～120 °, the ratio of the chord length a of the external arc of described circular arc narrow slit and action (b/2) is 3.4～8.0: 1, the diameter of the external arc of described circular arc narrow slit is 0.22～0.36mm, described circular arc slit width δ is 0.04～0.10mm, described two sections circular arc narrow slits all outwards arch upward, and the spacing c of the abutting end of described two sections circular arc narrow slits is 0.04～0.10mm.
Aforesaid a kind of oblate doughnut spinnerets, the end of described circular arc narrow slit is a circular arc, its diameter equals described circular arc slit width δ.
The utility model provides a kind of oblate doughnut spinnerets again, the length a of the spinnerets micropore of described spinnerets is 1.7～4.0: 1 with the ratio of width b, the spray silk micropore of described spinnerets is made of axisymmetric four arcs narrow slit, the central angle of the external arc of described circular arc narrow slit is 25～60 °, the chord length of the external arc of described circular arc narrow slit is 7.4～16.2: 1 with the ratio of action, the diameter of the external arc of described circular arc narrow slit is 0.22～0.36mm, described circular arc slit width δ is 0.04～0.10mm, described four arcs narrow slit all outwards arches upward, and the spacing c of the abutting end of described two sections circular arc narrow slits is 0.04～0.10mm.
Aforesaid a kind of oblate doughnut spinnerets, the end of described circular arc narrow slit is a circular arc, its diameter equals described circular arc slit width δ.
Beneficial effect
The utility model has the advantages that fiber cross section is oblate hollow structure, not only hollow structure has increased the fiber gap rate, and the space between the fiber has also increased, so just improved the bulkiness of fiber under heavy load, make fiber under high load capacity, still can keep its original shape, simultaneously under mutual entanglement effect between fibrous lofted, suppressed fiber web becomes felt after long-time use the phenomenon, also just because of the bulk performance of its excellence, the fiber gap rate is big, thereby has improved fibroreticulate suction, performance discharges water; Can alleviate the weight of fiber simultaneously owing to oblate hollow structure, and the corresponding attenuate in its reflecting layer, there is internal reflection simultaneously again, superficial reflex and internal reflection comprehensive, can strengthen catoptrical intensity, so the profiled filament of hollow type, its gloss effect is better; The fabric of profiled fibre, because the surface area of fiber increases, particularly the coefficient of friction of fiber changes along with the variation of fibre section, fiber is quiet, the corresponding increase of the difference of the coefficient of kinetic friction, thereby has changed and the wax shape sense of the fabric that circular fiber is made.Interfibrous cohesive force increases, and fiber head is difficult to skid off from fabric, and the ABRASION RESISTANCE of profiled filament is poor than circular fiber in addition, and the fiber head that skids off cloth cover comes off from fabric easily, so the pilling performance of fabric also improves to some extent.
Description of drawings
Fig. 1 is the schematic cross-section of a kind of oblate doughnut of the present utility model
Fig. 2 is the spray silk micropore schematic diagram of a kind of oblate doughnut of the present utility model with spinnerets
Fig. 3 is the spray silk micropore schematic diagram of the oblate doughnut of another kind of the present utility model with spinnerets
The specific embodiment
The PTA monomer, EG monomer and catalyst etc. are according to a certain ratio, methods by modification by copolymerization etc. obtain the PET section, and performances such as the dyeing of regulating and control fiber by the difference and the inorganic additive of comonomer, feel are improved the moisture absorption of fiber, antistatic, pilling performance; 165/175 ℃ of the pre-crystallization/drying of cutting into slices, 90 ℃ of chargings, the boiling situation is good, fondant filter is controlled at 262 ℃, pump is 38Hz for amount, and spinning temperature is 293 ℃, and cooling condition relaxes, wind-warm syndrome is mentioned 23 ℃, and the technological process of production is: chip drying → screw rod extrusion molten → spinning → reel → traverse → boundling → drawing-off → nervous HEAT SETTING → curl → loose HEAT SETTING → cut-out → packing → finished fiber dispatches from the factory.
The oblate doughnut that production obtains is a kind of oblate doughnut of the present utility model as shown in Figure 1, and its cross-sectional profile is the oblate and inner cavity that is, described oblate lateral length is 1.7～4.0: 1 with the ratio of vertical width.
Wherein, described oblate doughnut cross-sectional profile is oval, and its major axis is 1.7～4.0: 1 with the ratio of minor axis.
The degree of hollowness of described oblate doughnut is 15～22%.
The fiber number of described oblate doughnut is 0.8～3.0dtex.
The utility model also provides a kind of oblate doughnut spinnerets, as shown in Figure 2, the spray silk micropore of described spinnerets is made of two sections circular arc narrow slits of symmetry, the central angle of the external arc of described circular arc narrow slit is 50～120 °, the ratio of the chord length a of the external arc of described circular arc narrow slit and action (b/2) is 3.4～8.0: 1, the diameter of the external arc of described circular arc narrow slit is 0.22～0.36mm, described circular arc slit width δ is 0.04～0.10mm, described two sections circular arc narrow slits all outwards arch upward, and the spacing c of the abutting end of described two sections circular arc narrow slits is 0.04～0.10mm.The end of described circular arc narrow slit is a circular arc, and its diameter equals described circular arc slit width δ.
As shown in Figure 3, the utility model provides a kind of oblate doughnut spinnerets again, the length a of the spinnerets micropore of described spinnerets is 1.7～4.0: 1 with the ratio of width b, the spray silk micropore of described spinnerets is made of axisymmetric four arcs narrow slit, the central angle of the external arc of described circular arc narrow slit is 25～60 °, the chord length of the external arc of described circular arc narrow slit is 7.4～16.2: 1 with the ratio of action, the diameter of the external arc of described circular arc narrow slit is 0.22～0.36mm, described circular arc slit width δ is 0.04～0.10mm, described four arcs narrow slit all outwards arches upward, and the spacing c of the abutting end of described two sections circular arc narrow slits is 0.04～0.10mm.The end of described circular arc narrow slit is a circular arc, and its diameter equals described circular arc slit width δ.
Through evidence, a kind of oblate doughnut of the present utility model and spinnerets have improved the bulkiness of fiber under heavy load really, make fiber under high load capacity, still can keep its original shape, simultaneously between fibrous lofted mutually under the entanglement effect, suppressed fiber web becomes felt after long-time use phenomenon.
Claims (8)
1. oblate doughnut is characterized in that: described oblate doughnut cross-sectional profile is the oblate and inner cavity that is, described oblate lateral length is 1.7～4.0: 1 with the ratio of vertical width.
2. a kind of oblate doughnut according to claim 1 is characterized in that, described oblate doughnut cross-sectional profile is oval, and its major axis is 1.7～4.0: 1 with the ratio of minor axis.
3. a kind of oblate doughnut according to claim 1 is characterized in that the degree of hollowness of described oblate doughnut is 15～22%.
4. a kind of oblate doughnut according to claim 1 is characterized in that the fiber number of described oblate doughnut is 0.8～3.0dtex.
5. oblate doughnut spinnerets, it is characterized in that: the spray silk micropore of described spinnerets is made of two sections circular arc narrow slits of symmetry, the central angle of the external arc of described circular arc narrow slit is 50～120 °, the chord length of the external arc of described circular arc narrow slit is 3.4～8.0: 1 with the ratio of action, the diameter of the external arc of described circular arc narrow slit is 0.22～0.36mm, described circular arc slit width δ is 0.04～0.10mm, described two sections circular arc narrow slits all outwards arch upward, and the spacing c of the abutting end of described two sections circular arc narrow slits is 0.04～0.10mm.
6. a kind of oblate doughnut spinnerets according to claim 5 is characterized in that the end of described circular arc narrow slit is a circular arc, and its diameter equals described circular arc slit width δ.
7. oblate doughnut spinnerets, it is characterized in that: the length a of the spinnerets micropore of described spinnerets is 1.7～4.0: 1 with the ratio of width b, the spray silk micropore of described spinnerets is made of axisymmetric four arcs narrow slit, the central angle of the external arc of described circular arc narrow slit is 25～60 °, the chord length of the external arc of described circular arc narrow slit is 7.4～16.2: 1 with the ratio of action, the diameter of the external arc of described circular arc narrow slit is 0.22～0.36mm, described circular arc slit width δ is 0.04～0.10mm, described four arcs narrow slit all outwards arches upward, and the spacing c of the abutting end of described two sections circular arc narrow slits is 0.04～0.10mm.
8. a kind of oblate doughnut spinnerets according to claim 7 is characterized in that the end of described circular arc narrow slit is a circular arc, and its diameter equals described circular arc slit width δ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205779461U CN201873785U (en) | 2010-10-26 | 2010-10-26 | Oblate hollow fiber and spinneret plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205779461U CN201873785U (en) | 2010-10-26 | 2010-10-26 | Oblate hollow fiber and spinneret plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201873785U true CN201873785U (en) | 2011-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205779461U Expired - Fee Related CN201873785U (en) | 2010-10-26 | 2010-10-26 | Oblate hollow fiber and spinneret plate |
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| CN (1) | CN201873785U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443861A (en) * | 2011-10-27 | 2012-05-09 | 江苏华亚化纤有限公司 | Intermediate-strength coarse-denier dacron FDY (Fully drawn yarn) and method for producing same |
| WO2018113767A1 (en) * | 2016-12-23 | 2018-06-28 | 东丽纤维研究所（中国）有限公司 | Hollow polyester long fiber and preparation method therefor |
-
2010
- 2010-10-26 CN CN2010205779461U patent/CN201873785U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443861A (en) * | 2011-10-27 | 2012-05-09 | 江苏华亚化纤有限公司 | Intermediate-strength coarse-denier dacron FDY (Fully drawn yarn) and method for producing same |
| WO2018113767A1 (en) * | 2016-12-23 | 2018-06-28 | 东丽纤维研究所（中国）有限公司 | Hollow polyester long fiber and preparation method therefor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20141026 |
|
| EXPY | Termination of patent right or utility model |