CN201971936U - Special spinneret plate for spandexes - Google Patents
Special spinneret plate for spandexes Download PDFInfo
- Publication number
- CN201971936U CN201971936U CN2011200370301U CN201120037030U CN201971936U CN 201971936 U CN201971936 U CN 201971936U CN 2011200370301 U CN2011200370301 U CN 2011200370301U CN 201120037030 U CN201120037030 U CN 201120037030U CN 201971936 U CN201971936 U CN 201971936U
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- spandex
- section
- arc surface
- cross
- raw liquid
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Abstract
A special spinneret plate for spandex is characterized in that the cross section of a filament outlet hole of the spinneret plate is an arc surface, and triangular arc lines or concave arc lines and convex arc lines are connected alternately to form the arc surface. The cross section of an existing spinneret plate with concentric outlets is designed into an isosceles triangle, the length of each side of the isosceles triangle is larger than that of the bottom side of the isosceles triangle, or the cross section of the existing spinneret plate is designed into the arc surface, the concave arc lines of the arc surface are longer than the convex arc lines of the arc surface, accordingly contact area of thin flow of raw liquid with hot air is increased, faster convective mass transfer of the outer surface of the raw liquid to the peripheral hot air is realized, outward diffusion of solvent inside the thin flow of the raw liquid is accelerated, harmful solvent in the thin flow of raw liquid is assuredly sufficiently volatilized, and residual solvent in the spandex yarns is reduced. Simultaneously, characteristic that expansion degree of the thin flow of raw liquid on a windward side is larger than that on a lee side is utilized, roundness of section of each spandex yarn is corrected, content of the harmful solvent in the spandex yarns is reduced, physical indexes and follow-up process of the spandex yarns are improved, storage life of the spandex yarns is prolonged, and accordingly the requirement of environmental protection is met.
Description
Technical field:
The utility model the utility model is used for spandex high polymer spinning moulding field, specifically a kind of spandex special spinning jet.
Background technology:
At present, the spandex silk stock solution is extruded from spinnerets circular hole filament mouth and is entered the spinning lateral blowing path, by thermal air current effect in the lateral blowing path, make that hazardous solvent volatilizees fast in the stoste thread, the viscosity of stoste thread reaches a certain critical value and realizes solidifying formation spandex silk, and the hazardous solvent that evaporates is taken away by thermal air current.
And in production practices, stoste thread outer surface solvent reduces the outer surface solvent strength by evaporation, and stoste thread internal solvent is poor by inside and outside solvent strength, and Blang's operation diffuses to outer surface and volatilizees; But because 250 ℃ of high temperature air streams of spinning shaft lateral blowing, make the inner hazardous solvent of stoste thread in the time of external diffusion, stoste thread outer surface just begins to occur solidifying phenomenon, hinder inner hazardous solvent to external diffusion, cause the inner hazardous solvent of stoste thread can't maximize volatilization, make that the spandex silk solvent of producing is higher, Practical Performance descends; Owing to the lateral blowing reason, make stoste thread windward side degrees of expansion simultaneously, cause stoste to solidify spandex silk cross section, back and become different shapes such as ellipse greater than the lee face degrees of expansion.This all brings some adverse effects to spandex silk physical index, postchannel process, storage cycle, environmental protection etc.
The utility model content:
For overcoming above-mentioned technical problem, the utility model provides a kind of spandex special spinning jet, and its concrete technical scheme is as follows:
A kind of spandex special spinning jet is characterized in that: the alternate arc surface that is formed by connecting of the cross section triangularity in the wire vent hole of spinnerets or bump arc.
Preferably, described cross section is leg-of-mutton wire vent hole, and its cross section is an isosceles triangle, and its waist is grown up in bottom side length.
Preferably, described cross section is the wire vent hole of arc surface, and its concave arc line length is greater than the convex arc line length.
Spandex special spinning jet of the present utility model, with the Cross-section Design of the spinnerets of former concentric outlet is that waist is grown up in the isosceles triangle of bottom side length, perhaps be designed to the arc surface of concave arc line length greater than the convex arc line length, thereby stoste thread and hot-air contact area have been increased, make the stoste outer surface faster convective mass transfer of hot-air work towards periphery, accelerate stoste thread internal solvent to external diffusion, guarantee before stoste thread outer surface solidifies, hazardous solvent is fully volatilized in the stoste thread, thereby has reduced spandex silk internal solvent residual volume; Meanwhile, utilize stoste thread windward side degrees of expansion, pass through die swelling greater than lee face degrees of expansion characteristics, revise spandex silk cross section circularity, reduced hazardous solvent content in the spandex silk, improve spandex silk physical index and postchannel process, prolong memory time, thereby reach environmental requirement.
Description of drawings:
Fig. 1 is the structural representation of isosceles triangle for spandex special spinning jet wire vent hole cross section;
Fig. 2 is the structural representation of arc surface for spandex special spinning jet wire vent hole cross section;
Among the figure: the 1-spinnerets; 2-isosceles triangle wire vent hole; 3-arc surface wire vent hole.
The specific embodiment:
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1:
As Fig. 1, a kind of spandex special spinning jet, the wire vent hole of spinnerets 1 is isosceles triangle wire vent hole 2, its waist is grown up in bottom side length.
Embodiment 2:
As Fig. 2, a kind of spandex special spinning jet, the wire vent hole of spinnerets 1 is the alternate arc surface wire vent hole 3 that is formed by connecting of bump arc, the concave arc line length of described arc surface is greater than the convex arc line length.
With the Cross-section Design of the spinnerets 1 of former concentric outlet is that waist is grown up in the isosceles triangle of bottom side length, perhaps be designed to the arc surface of concave arc line length greater than the convex arc line length, thereby guarantee under the constant situation of stoste exit area, increase the perimeter of section of stoste thread, stoste thread and hot-air contact area have also just been increased, make the stoste outer surface faster convective mass transfer of hot-air work towards periphery, it is poor to have increased the inside and outside solvent strength of stoste thread, improved Brownian movement, accelerate stoste thread internal solvent to external diffusion, thereby guarantee before stoste thread outer surface solidifies, hazardous solvent is fully volatilized in the stoste thread, thereby has reduced spandex silk internal solvent residual volume; Meanwhile, utilize stoste thread windward side degrees of expansion, remedy windward side length of side length, the short structure of the lee face length of side,, revise spandex silk cross section circularity by die swelling greater than lee face degrees of expansion characteristics.
Specific embodiment described herein only is that the utility model is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (3)
1. a spandex special spinning jet is characterized in that: the alternate arc surface that is formed by connecting of the cross section triangularity in the wire vent hole of spinnerets or bump arc.
2. spandex special spinning jet according to claim 1 is characterized in that: described cross section is leg-of-mutton wire vent hole, and its cross section is an isosceles triangle, and its waist is grown up in bottom side length.
3. spandex special spinning jet according to claim 1 is characterized in that: described cross section is the wire vent hole of arc surface, and its concave arc line length is greater than the convex arc line length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200370301U CN201971936U (en) | 2011-02-12 | 2011-02-12 | Special spinneret plate for spandexes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200370301U CN201971936U (en) | 2011-02-12 | 2011-02-12 | Special spinneret plate for spandexes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201971936U true CN201971936U (en) | 2011-09-14 |
Family
ID=44577043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200370301U Expired - Lifetime CN201971936U (en) | 2011-02-12 | 2011-02-12 | Special spinneret plate for spandexes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201971936U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017200900A1 (en) | 2016-05-20 | 2017-11-23 | Invista North America S.A R.L. | Non-round solution spun spandex filaments and methods and devices for production thereof |
| CN114516169A (en) * | 2021-12-30 | 2022-05-20 | 盐城工学院 | Design method of polygon-like filament outlet hole of nozzle of FDM-3D printer |
-
2011
- 2011-02-12 CN CN2011200370301U patent/CN201971936U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017200900A1 (en) | 2016-05-20 | 2017-11-23 | Invista North America S.A R.L. | Non-round solution spun spandex filaments and methods and devices for production thereof |
| CN109563643A (en) * | 2016-05-20 | 2019-04-02 | 服饰与高级纺织英国有限公司 | Non-circular solution spins spandex filament and its production method and device |
| JP2019516877A (en) * | 2016-05-20 | 2019-06-20 | エイアンドエイティー ユーケー リミテッド | Non-circular solution spun spandex filaments and methods and apparatus for making the same |
| JP2022031796A (en) * | 2016-05-20 | 2022-02-22 | ザ ライクラ カンパニー ユーケー リミテッド | Non-round solution-spun spandex filaments and methods and devices for producing the same |
| JP7216177B2 (en) | 2016-05-20 | 2023-01-31 | ザ ライクラ カンパニー ユーケー リミテッド | Non-circular solution-spun spandex filaments and method and apparatus for making same |
| CN114516169A (en) * | 2021-12-30 | 2022-05-20 | 盐城工学院 | Design method of polygon-like filament outlet hole of nozzle of FDM-3D printer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325206 Zhejiang Ruian Xincheng Industrial Park, Wenzhou City, Zhejiang Province Patentee after: Huafeng Chemical Co.,Ltd. Address before: 325206 Zhejiang Ruian Xincheng Industrial Park, Wenzhou City, Zhejiang Province Patentee before: ZHEJIANG HUAFENG SPANDEX Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110914 |
|
| CX01 | Expiry of patent term |