CN2511693Y - Spinneret for circular four-hole hollow long fibers - Google Patents
Spinneret for circular four-hole hollow long fibers Download PDFInfo
- Publication number
- CN2511693Y CN2511693Y CN 01263466 CN01263466U CN2511693Y CN 2511693 Y CN2511693 Y CN 2511693Y CN 01263466 CN01263466 CN 01263466 CN 01263466 U CN01263466 U CN 01263466U CN 2511693 Y CN2511693 Y CN 2511693Y
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- China
- Prior art keywords
- circular
- spinneret
- circular arc
- slit
- cross
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- Expired - Lifetime
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Abstract
The utility model relates to a spinneret for hollow fibers, in particular to a spinneret for circular four-hole hollow long fibers, wherein, the spinneret holes of the spinneret are distributed like a ring or a diamond or other shapes; the spinneret holes consist of a lead hole and a spinneret pore, the section shape of the spinneret pore consists of four sections of circular arc slits and cross-shaped slits; the four endpoints of the cross-shaped slits are connected with the midpoints of the four sections of the circular arc slits respectively. With the spinneret, the hollow long fibers have the advantages of moderate hollowness, good orderliness of fiber threads, and high hollowness ratio after texturing processing.
Description
Relate to the field:
The utility model relates to a kind of spinnerets that spins doughnut, is in particular the circular four hole tubular filament spinneretss of a kind of spinning.
Background technology:
In the prior art, the doughnut speed of production of producing with conventional spinning method is low, and the scope of application is restricted, and general road, the work back DT silk that is fit to is produced, and tubular filament is second-rate, and production efficiency is lower, and production cost is higher.
Summary of the invention:
The purpose of this utility model is to provide employing High-speed Spinning Production explained hereafter four hole tubular filament fiber spinneretss.
The purpose of this utility model realizes by following technical solution:
The circular four hole tubular filament fiber spinneretss of a kind of spinning, spinneret orifice on the spinnerets distributes in the form of a ring or rhombus distributes or other distribution forms, spinneret orifice is made up of guide hole and spray silk pore, the cross sectional shape of described spray silk pore is that four arcs slit and cross slits are formed, and four end points of cross slits are connected with the mid point of the camber concave surface of four arcs slit respectively.
The purpose of this utility model also can further realize by following technical measures:
The circular four hole tubular filament fiber spinneretss of aforesaid a kind of spinning, the transversal face width B of wherein said spray silk pore each section circular arc slit is 0.06-0.12mm, cross slit width b is 0.07-0.10mm, and gap L is 0.06-0.10mm between two sections adjacent circular arc slits.
The circular four hole tubular filament fiber spinneretss of aforesaid a kind of spinning, wherein said each circular arc slit two ends are arc, circular arc slit two ends circular arc R is 0.03-0.06mm.
The circular four hole tubular filament fiber spinneretss of aforesaid spinning, the height h of wherein said spray silk pore is 0.4-0.9mm.
The utility model is compared with existing long filament production technology, spinneret orifice is formed by the guide hole of circle with by pore two parts that circular arc slit and cross slits are formed, the effect of guide hole is to enter micropore with guiding the melt continuously smooth, the high polymer molten that is viscous state is by behind the circular arc slit, because the elastic force of high polymer molten, the high polymer molten of extruding from the circular arc slit can closed adhesion form blind bore between adjacent circular arc slit, change melt thread into hollow section, drawn, cooling, processes such as curing become doughnut, form the POY spinning cake through reeling; Or directly drawing-off forms the FDY product.Use the spinnerets of this shape pass to have that melt flowability is good, the expanded phenomenon of spinneret orifice exit melt normal, be difficult for melt fracture, advantages such as the doughnut degree of hollowness of producing is moderate, hollow dimensionally stable.Add man-hour through the DTY production technology, can keep higher degree of hollowness.This tubular filament cross section is the four hole tubular filaments that are provided with cross skeleton in the circular hollow shape, is suitable for deformation processing.Because the circular hollow wall of cross skeleton has stronger supporting role, therefore, through the distortion false twisting, this long filament still can make the distortion of hollow space reduce to and minimize, and can improve the hollow conservation rate of fiber, the processing of very suitable knitted fabric.Conventional circle tubular filament is after false twist texturing processing, the hollow conservation rate of long filament is generally understood step-down, the about 20%-30% of the common initial hollow rate ratio of the sectional area of silk (area of hollow space with), but after false twist texturing, its the hollow conservation rate 30%-40% that then can descend by comparison, is aided with the four hole tubular filaments that suitable production technology is produced with this spinnerets, after false twist texturing processing, the hollow conservation rate is about 80%.As seen, the hollow rate of this long filament is apparently higher than the hollow rate of conventional doughnut.General conventional doughnut is not made the false twisting deformation processing, and this long filament is fit to various false twist texturings and handles, and demonstrates good processing characteristics, thereby is particularly suitable as and knittingly is processed to various knitted fabrics with long filament.Also be fit to do ATY processing.Because the degree of hollowness of this fiber is higher after the false twist texturing, its actual weight is generally than outward appearance 15-25% in light weight, because there is a certain amount of air the inside of silk, thereby can effectively control the temperature in the clothes, prevent that human body temperature from descending rapidly, thereby have good heat insulation effect.
Description of drawings:
Fig. 1 is the structural representation of a preferred embodiment of the utility model;
Fig. 2 is the A-A cross-sectional view of Fig. 1;
Fig. 3 is that the B of Fig. 2 is to structural representation.
The specific embodiment:
As Figure 1-3, the spinneret orifice 2 on the utility model spinnerets 1 distributes in the form of a ring, also can be rhombus and distributes or other distribution forms, uses flexibility stronger.The number of turns that spinneret orifice is arranged can be set according to the quantity of spinneret orifice, the requirement of production kind dpf number.Spinneret orifice 2 is made up of a guide hole 3 and a spray silk pore 4, and the cross sectional shape of described spray silk pore 4 is four arcs slit 5 and cross slits 6 compositions, and four end points of cross slits 6 are connected with the mid point of the camber concave surface of four arcs slit 5 respectively.Can make the melt of extruding after going out spinnerets, end points is adhered to one another easily, forms circular four hole doughnuts.The transversal face width of spray silk pore 4 each section circular arc slits is B=0.06-0.12mm, cross slit width b=0.07-0.10mm, and the gap is L=0.06-0.10mm between two sections adjacent circular arc slits.Circular arc slit outer diameter D 1=0.60-0.90mm, each circular arc slit two ends is an arc, circular arc slit two ends circular arc R=0.03-0.06mm.The height h of spray silk pore is 0.4-0.9mm.Guide hole diameter D=0.25-0.30mm adopts high-speed spinning long filament production Technology, and winding speed was 3800-4900m/min when the POY winding speed was 2500-3600m/min. production FDY.Adopt high-speed spinning long filament production Technology, adjusting process parameter reasonably, the degree of hollowness that can make fiber is in the 8-30% scope.
Doughnut spinnerets 1 of the present utility model is the core apparatus of production PET Hollow long filament assembly, this spinnerets 1 can be made by metal material, be provided with spinneret orifice 2 on it equably, this spinneret orifice 2 is vertical with spinning plate surface, this spinneret orifice 2 is made up of the guide hole 3 and the spray silk pore 4 of circle, and this guide hole mouth and this spray silk pore aperture are divided into the side, two ends of spray plate body.Adopt this kind spinnerets, advantage such as it is moderate that the hollow long fiber of production has degree of hollowness, and the regular shape property of strand is good, make fabric after, warmth retention property is good, fluffy sense is strong, fabric weight is light, comfortable and easy to wear.
Claims (4)
1. one kind spins circular four hole tubular filament spinneretss, spinneret orifice on the spinnerets distributes in the form of a ring or rhombus distributes, spinneret orifice is made up of guide hole and spray silk pore, it is characterized in that: the cross sectional shape of described spray silk pore is that four arcs slit and cross slits are formed, and four end points of cross slits are connected with the mid point of the camber concave surface of four arcs slit respectively.
2. the circular four hole tubular filament spinneretss of a kind of spinning according to claim 1, it is characterized in that: the transversal face width B of spray silk pore each section circular arc slit is 0.06-0.12mm, cross slit width b is 0.07-0.10mm, and gap L is 0.06-0.10mm between two sections adjacent circular arc slits.
3. the circular four hole tubular filament spinneretss of a kind of spinning according to claim 1 is characterized in that: described each circular arc slit two ends are arc, and circular arc slit two ends circular arc R is 0.03-0.06mm.
4. the circular four hole tubular filament spinneretss of spinning according to claim 1 is characterized in that: the height h of described spray silk pore is 0.4-0.9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01263466 CN2511693Y (en) | 2001-10-29 | 2001-10-29 | Spinneret for circular four-hole hollow long fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01263466 CN2511693Y (en) | 2001-10-29 | 2001-10-29 | Spinneret for circular four-hole hollow long fibers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2511693Y true CN2511693Y (en) | 2002-09-18 |
Family
ID=33671044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01263466 Expired - Lifetime CN2511693Y (en) | 2001-10-29 | 2001-10-29 | Spinneret for circular four-hole hollow long fibers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2511693Y (en) |
-
2001
- 2001-10-29 CN CN 01263466 patent/CN2511693Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20111029 Granted publication date: 20020918 |