CN201241207Y - Spinning die for producing coarse denier nylon industry filament - Google Patents
Spinning die for producing coarse denier nylon industry filament Download PDFInfo
- Publication number
- CN201241207Y CN201241207Y CNU2008201513762U CN200820151376U CN201241207Y CN 201241207 Y CN201241207 Y CN 201241207Y CN U2008201513762 U CNU2008201513762 U CN U2008201513762U CN 200820151376 U CN200820151376 U CN 200820151376U CN 201241207 Y CN201241207 Y CN 201241207Y
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- spinnerets
- spinneret
- polyamide fibre
- silk
- spinneret orifice
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Abstract
The utility model relates to a Spinneret plate for producing industrial yarns, in particular to a spinneret plate for producing chinlon industrial yarns with heavy denier. Filament number obtained by the spinneret plate can achieve the chinlon industrial yarn with heavy denier from 6.0.p.f to 20.0d.p.f, so that the filament number is greatly improved on the original basis. The aim of the utility model is achieved by changing the slenderness ratio and the aperture of a conventional spinneret, and has the specific scheme that the main body of the Spinneret plate for producing industrial yarns can be in a rectangular shape or a circular shape, the spinneret is composed of a lead hole and a spinneret micropore, the lead hole has the function for continuously and smoothly introducing fused mass into the spinneret micropore, and the cross section of the spinneret micropore is circular.
Description
Technical field
The utility model relates to a kind of spinnerets of manufacture silk usefulness, particularly produces the spinnerets of thick dawn polyamide fibre industry silk usefulness, belongs to the synthetic fiber production technical field.
Background technology
Polyamide fibre claims nylon, polyamide fiber again, is the synthetic fiber that carry out suitability for industrialized production the earliest, and principal item has polyamide fibre 6, polyamide fibre 66.Because the polyamide fibre heavy denier yarn is in intensity, the advantage of mechanical property aspects such as ABRASION RESISTANCE, the framework material of Chang Zuowei tire, hawser, conveyer belt etc. extensively are used in industrial.
Along with hastening towards saturation continuous development and conventional polyamide fibre industry silk day of production technology, some special kinds then arise at the historic moment, as the better high intensity low shrinkage polyamide fibre industry silk of quality, High Modulus And Low Shrinkage polyamide fibre industry silk, the industrial silk of improvement in functionality polyamide fibre.In addition, existing conventional thick relatively dawn polyamide fibre industry silk (filament number is smaller or equal to 6d.p.f), (filament number is places such as the tyre framework material that can be applicable to high strength more and require of 8d.p.f～20d.p.f), tent, canvas to the thick dawn polyamide fibre industry silk that fiber number is bigger.
The method of common production heavy denier yarn has:
(1) technological parameter adjustment.Under the condition that does not change spinnerets, increase pump for amount or reduce spinning speed, filament number that can increased fiber.Wherein reduce spinning speed and make tensile fiber insufficient, intensity is not high, and production efficiency decline, can not satisfy the requirement that the industry silk is produced; Increasing pump makes the rotating speed of measuring pump increase for amount, the security performance of the affected by high complete equipment that produces, occur leaking glue, float the phenomenon that silk increases,, aggravates melt simultaneously because of causing temperature to raise with the friction of measuring pump high-speed gear, increase the possibility of high polymer segment degraded, influenced the stability of spinning.
(2) change of spinnerets structure.The micropore size that increases spinnerets is the method for the most common acquisition heavy denier yarn, but often because of pressure before the plate of aperture increase causing spinnerets reduces, stability of spinning process is descended, and denier irregularity raises, thereby the total quality of heavy denier yarn is descended.
Prior art normally combines above-mentioned two kinds of methods and implements to produce heavy denier yarn, promptly increases pump simultaneously for amount and spray silk micropore size.This combination method of adjustment can effectively improve the fiber number of fiber, obtains heavy denier yarn, but does not solve the flow stability problem that " entry-end effect " that melt extrudes in the duct, large aperture causes." entry-end effect " is meant the influence owing to melt viscosity, and melt convergence occurs at inlet and flows, and makes pressure fall the phenomenon of unexpected increase, makes that the flow stability of melt is poor.Melt viscosity is big, micropore size this greatly " entry-end effect " is more obvious.By prolonging the length of spinneret orifice, promptly increase the draw ratio of spinneret orifice, guarantee that melt has enough length of flow to eliminate the phenomenon of the stable difference that flows that causes because of " entry-end effect " in micropore.
(number of patent application: 02139654.X) adopt relative viscosity is 3.5～3.6 high viscosity PA 6 section to patent " a kind of thick dawn high-strength nylon 6 full stretching industrial silk production technologies ", has prepared fiber number and be high strength (the polyamide fibre industry of fracture strength 〉=8.6cN/dtex) thread of 2100dtex/316f (the about 6d.p.f of filament number).Usually, the draw ratio of the spinnerets of spinning polyamide fibre industry silk (filament number is less than 6d.p.f) is 1.5～2, and the aperture is about 0.4mm, and this draw ratio can't satisfy the steady production of the thick dawn polyamide fibre industry silk of bigger fiber number.
Document " the thick leaf production technology discussion that light PA6 FDY is arranged of dawn five " (" synthetic fiber industry ", 2006,29 (5): mention a kind of production technology of producing thick denier polyamide fiber 6 58-60), by increasing the spinnerets diameter, adopting five leaf spinneret orifices to obtain thick dawn of 233 dtex/18f (the about 12d.p.f of filament number) five leafly has light PA6 FDY, but the PA6 that adopts section relative viscosity is 2.85 only, and fracture strength is low, only be 4.0cN/dtex, can not be as the industry silk.
In the prior art, the spinning fine denier filament particularly during superfine denier fiber, usually adopts high length-diameter ratio (3～4) spinneret orifice, and melt high shear in micropore is flowed, and reduces melt and extrudes the aperture bulking effect to discharge elastic energy.Because melt viscosity aperture low, spinneret orifice is little during the conventional fine denier filament of spinning, its " entry-end effect " is very little, can ignore substantially.(filament number is for the polyamide fibre of 8d.p.f～20d.p.f) the industry silk and for the thick dawn, the spinneret orifice of employing high length-diameter ratio be the more important thing is and reduced melt by " entry-end effect " of guide hole to micropore, guarantee the preceding extrusion pressure of certain spinnerets simultaneously, remedy because pressure decline before the spinnerets that hole diameter enlargement causes improves the stability of spinning.
Summary of the invention
The purpose of this utility model, provide a kind of spinnerets of manufacture silk usefulness, the special spinnerets of producing thick dawn polyamide fibre industry silk usefulness, the filament number that this spinnerets can obtain reaches 6.0d.p.f～20.0d.p.f polyamide fibre of thick dawn industry silk, makes filament number obtain bigger raising on original basis.
The purpose of this utility model is to realize by the draw ratio that changes conventional spinneret orifice, aperture, be specially: a kind of spinnerets of polyamide fibre industry of thick dawn of suitable production silk, wherein the spinnerets body can be rectangle or circle, spinneret orifice is by guide hole and the phase composition of spray silk micropore two parts, the effect of guide hole is entering in the spray silk micropore of guiding melt continuously smooth, and the cross section of spray silk micropore is circular.Wherein:
(1) the spinneret orifice draw ratio can be 3～6, suitably reduces guide hole length, compares with spinnerets with conventional polyamide fibre industry silk, is remaining unchanged substantially on the spinnerets thickness;
(2) spinneret orifice diameter can be 0.4mm～0.8mm;
(3) being distributed as in length and breadth of spinneret orifice distributes to equidistant rhombus on the spinnerets, also can be according to the distribution of how much adjusting accordingly of the number of perforations on the spinnerets.
Advantage of the present utility model is:
(1) spinnerets of use technical solutions of the utility model processing and fabricating, the uniformity of the filament number of spinning is better, can reach the purpose of steady production, the deficiency when having avoided simple increase pump to produce heavy denier yarn for the aperture size of amount and spinnerets;
(2) spinnerets of use technical solutions of the utility model processing and fabricating, the filament number scope of the fiber of spinning is wide, can obtain fiber number at 6.0d.p.f～20.0d.p.f;
(3) spinnerets of use technical solutions of the utility model processing and fabricating, the ABRASION RESISTANCE of the monofilament of the fiber of spinning obviously improves.
Description of drawings
Fig. 1 is that the spinneret orifice of the utility model embodiment 1 is arranged schematic diagram
Fig. 2 is that the spinneret orifice of the utility model embodiment 2 is arranged schematic diagram
The specific embodiment
Below in conjunction with the specific embodiment, further set forth the present invention.
Embodiment 1
When producing 1120dtex/185f (the about 6.0d.p.f of filament number) polyamide fibre of thick dawn industry silk, the concrete size of its spinnerets is as follows:
The rectangle spinnerets, long is 360mm, and wide is 140mm, and thick is 34mm
Spinneret orifice diameter is 0.4mm
Spinneret orifice draw ratio 3
The equidistant diamond array of spinneret orifice totally 9 is arranged (5 rows, 21 holes, 4 rows, 20 holes replace mutually), as shown in Figure 1.
Embodiment 2
When producing 400dtex/18f (the about 20.0d.p.f of filament number) polyamide fibre of thick dawn industry silk, the concrete size of its spinnerets is as follows:
Circular spinnerets, the spinnerets diameter is 80mm, thick is 34mm
Spinneret orifice diameter is 0.8mm
Spinneret orifice draw ratio 4.5
The equidistant diamond array of spinneret orifice 5 is arranged totally, and every round number is respectively 3,4,4,4,3, as shown in Figure 2.
Claims (4)
1. spinnerets that is used to produce thick dawn polyamide fibre industry silk, it is characterized in that: the spinneret orifice draw ratio is 3～6.
2. a kind of spinnerets that is used to produce thick dawn polyamide fibre industry silk as claimed in claim 1 is characterized in that described spinneret orifice diameter is 0.4mm～0.8mm.
3. a kind of spinnerets that is used to produce thick dawn polyamide fibre industry silk as claimed in claim 1 is characterized in that described spinneret orifice being distributed as in length and breadth on spinnerets distributes to equidistant rhombus.
4. a kind of spinnerets that is used to produce thick dawn polyamide fibre industry silk as claimed in claim 1 is characterized in that described spinnerets is rectangle or circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201513762U CN201241207Y (en) | 2008-07-29 | 2008-07-29 | Spinning die for producing coarse denier nylon industry filament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201513762U CN201241207Y (en) | 2008-07-29 | 2008-07-29 | Spinning die for producing coarse denier nylon industry filament |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201241207Y true CN201241207Y (en) | 2009-05-20 |
Family
ID=40714502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201513762U Expired - Lifetime CN201241207Y (en) | 2008-07-29 | 2008-07-29 | Spinning die for producing coarse denier nylon industry filament |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201241207Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880927A (en) * | 2010-04-23 | 2010-11-10 | 江苏开利地毯股份有限公司 | Method for producing fine denier terylene BCF filaments and spinning plate |
| CN101962814B (en) * | 2009-07-23 | 2014-05-07 | 上海启鹏工程材料科技有限公司 | Method for preparing heavy denier EVOH fiber for reinforcing concrete |
-
2008
- 2008-07-29 CN CNU2008201513762U patent/CN201241207Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962814B (en) * | 2009-07-23 | 2014-05-07 | 上海启鹏工程材料科技有限公司 | Method for preparing heavy denier EVOH fiber for reinforcing concrete |
| CN101880927A (en) * | 2010-04-23 | 2010-11-10 | 江苏开利地毯股份有限公司 | Method for producing fine denier terylene BCF filaments and spinning plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090520 |
|
| CX01 | Expiry of patent term |