CN104726942A - Spinning assembly, spinning assembly manufacturing method, and spinning assembly improving method - Google Patents

Spinning assembly, spinning assembly manufacturing method, and spinning assembly improving method Download PDF

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Publication number
CN104726942A
CN104726942A CN201410566500.1A CN201410566500A CN104726942A CN 104726942 A CN104726942 A CN 104726942A CN 201410566500 A CN201410566500 A CN 201410566500A CN 104726942 A CN104726942 A CN 104726942A
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polymer
filter
filament spinning
spinning component
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川本和弘
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TMT Machinery Inc
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TMT Machinery Inc
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Abstract

The invention provides a spinning assembly, a spinning assembly manufacturing method, and a spinning assembly improving method. In a spinning assembly in which a granulous filtering material is replaced by a polygonal-section metallic short fiber filter, the retention of a polymer is suppressed as much as possible. The spinning assembly (4) is provided with a flow path forming body (4) with a polymer filling space (49), a volume reducing body (57) received in the polymer filling space (49), a filter (44) with a first filtering layer (51) formed by sintering the polygonal-section metallic short fiber, and spinning nozzles (41) of multiple nozzles (54) which spin fusion polymers passing through the filter (44).

Description

The manufacture method of filament spinning component, filament spinning component and the remodeling method of filament spinning component
Technical field
The present invention relates to the remodeling method possessing the filament spinning component of the spinning head spinning molten polymer, the manufacture method of filament spinning component and filament spinning component.
Background technology
In the past, we knew the melt spinning device spinning synthetic fiber yarn.General melt spinning device possesses the filament spinning component with spinning head.There is provided molten polymer to filament spinning component, this molten polymer is spun by the multiple nozzles respectively from spinning head and becomes many filaments.
General filament spinning component possesses the filtering material of filtering molten polymer.The filament spinning component with sand grains equigranular filter material is disclosed in patent document 1,2.These filament spinning components have polymer entrance hole, granular filter material, filter, spinning head etc. according to suitable from top.Filament spinning component inside is provided with the space be connected with polymer entrance hole, in this space, is filled with granular filter material.Import molten polymer in above-mentioned space after by granular filter material and filter from polymer entrance hole, spin from multiple nozzles of spinning head.
[patent document 1] Japanese Unexamined Patent Publication 2002-266152 publication
[patent document 2] Japanese Patent Publication 62-1001 publication
The granular filter material that patent document 1,2 etc. use is except the foreign matter that filtering molten polymer, trapping wherein comprise, and what also have refined molten polymer becomes this effect important in addition of gelatinous part.Form slightly pointed acute angle part of tool outside it such as the sand grains of granular filter material, metal sand.At molten polymer by when granular filter material, the gelation part of molten polymer is split by the above-mentioned acute angle part of granular filter material.Because gelatinous part is the foreign matter having high viscosity, lose the solid shape of mobility, if therefore insufficient seizure, refinement carrying out this gelatinous part, gelatinous part residual large from the spun molten polymer of nozzle, becomes the great reason that yarn qualities declines, filament (single thread) ruptures.
But there is following various problem in the filament spinning component employing granular filter material.First, granular filter material under the pressure of provided molten polymer partly mesh open or be have compressed partly.Thus, the voidage of filter material changes partly, and strainability changes.When voidage increases, strainability declines.Further, when voidage reduces, because filtration pressure rises, the needs changing assembly in advance are therefore produced.Therefore, generally, the lifetime of assembly in the filament spinning component of granular filter material is employed.Further, in filter material when mesh joint open, decrement imbalance, voidage produces deviation, at granular filter material interpolymer imperfect flow.As a result, uneven from the spun amount of polymers of multiple nozzle respectively, between filament, the physical property such as thickness (fiber number) dissimilates.And due to granular filter material spended time labour when recycling, therefore in most cases change filament spinning component and all discarded by filter material, therefore shortly with the life-span of assembly combine, the quantitative change of discarded object is many at every turn.
Therefore, the present application person has carried out the exploitation not using the filament spinning component of granular filter material.Be specially, the filter (hereinafter referred to as " polygonal cross-section broken-staple metal fibre filter ") using the broken-staple metal fibre of sintering polygonal cross-section to be formed replaces granular filter material.Polygonal cross-section broken-staple metal fibre filter has such as filter disclosed in Japanese Unexamined Patent Publication 5-253418, Japanese Unexamined Patent Publication 2005-256197 publication etc.When molten polymer is by when polygonal cross-section broken-staple metal fibre filter, the gelatinous part in polymer is had the acute angle portion chopping Ground Split of the broken-staple metal fibre of polygonal cross-section.That is, polygonal cross-section broken-staple metal fibre filter is same with granular filter material, has the function of the gelatinous part in refined molten polymer.
But, replace in the filament spinning component of granular filter material at the above-mentioned polygonal cross-section broken-staple metal fibre filter that employs, likely adopt modular construction diverse with the filament spinning component employing granular filter material in the past completely newly.But, if the inside only changing the filament spinning component used a little just can use as new filament spinning component, then can be cost-saving, concerning ideal the user of melt spinning device.Further, if the size of components of filament spinning component in the past and new filament spinning component differs greatly, then the position etc. that it readjusts each device of melt spinning device must be catered to.Such as, if the change in size up and down of filament spinning component, then from spinning head spin polymer position and install filament spinning component device (heating compartment embodiment is below equivalent to this) lower surface between distance change.Therefore necessity of the position of the filament spinning component installing component of change said apparatus, adjustment spinning head is had.For this point, if filament spinning component in the past and new filament spinning component make the main parts size such as the parts being formed with polymer stream general, the size of new filament spinning component can be made identical with filament spinning component in the past, even if use new filament spinning component also can make to spin invariant position.Further, by making the main parts size of filament spinning component in the past and new filament spinning component general, the manufacturing cost of new filament spinning component can also be reduced.
In view of above-mentioned this point, the present application person is studied using the part parts identical with using the filament spinning component in the past of granular filter material to form new filament spinning component.Be specially, in the parts (stream organizator) being formed with polymer stream, in the polymer-filled space formed therein, do not fill granular filter material, but installation polygonal cross-section broken-staple metal fibre filter replaces this granular filter material.But, in this case find to produce following such problem.
Filament spinning component is in the past owing to containing granular filter material in polymer-filled space, and correspondingly in polymer-filled space, actual space of filling molten polymer diminishes.But new filament spinning component is not owing to using granular filter material, and be therefore filled with a large amount of molten polymers in polymer-filled space, the time of polymer retention is elongated.Thus, it is rotten that polymer produces that heat ageing causes, and becomes the main cause that broken yarn, yarn qualities are uneven.
Summary of the invention
Object of the present invention is exactly will replace employing polygonal cross-section broken-staple metal fibre filter the delay as far as possible suppressing assembly interpolymer in the filament spinning component of granular filter material.
The feature of inventing the filament spinning component of the 1st scheme is to possess: stream organizator, has the introduction part importing molten polymer and the polymer-filled space being connected, filling above-mentioned molten polymer with above-mentioned introduction part; Subtract appearance body, be housed at least lower space in the above-mentioned polymer-filled space of above-mentioned stream organizator; Filter, is configured in above-mentioned in above-mentioned stream organizator subtracting on the position that holds on the downside of body, and has sintering and have the broken-staple metal fibre of polygonal cross-section and the 1st filter course that formed; And spinning head, be configured in the downside of above-mentioned stream organizator, be formed with the multiple nozzles spinning the above-mentioned molten polymer that have passed above-mentioned filter respectively.
The present invention uses has that sintering has the broken-staple metal fibre of polygonal cross-section and the filter of the 1st filter course that formed replaces the granular filter material of filling in the polymer-filled space of stream organizator.With the gelatinous part in the 1st filter course of filter positively refined molten polymer.Further, if do not fill granular filter material in the lower space in the polymer-filled space of stream organizator, then in polymer-filled space, actual volume of filling the actual packing space of molten polymer becomes large corresponding amount, and the time of polymer retention is elongated.This point, the present invention contains and subtracts appearance body in the lower space in polymer-filled space, and volume reducing and this of polymer-filled space, above-mentioned actual packing space subtract the equal amount of the volume that holds body.Therefore, in polymer-filled space, the holdup time of molten polymer shortens, molten polymer by heat ageing cause rotten suppressed.
The feature of inventing the filament spinning component of the 2nd scheme is, in above-mentioned 1st scheme, above-mentioned subtract hold body in above-mentioned polymer-filled space occupy that volume is the whole volume in above-mentioned polymer-filled space 60% ~ 90%.And the feature of inventing the filament spinning component of the 3rd scheme is, in above-mentioned 2nd scheme, above-mentioned subtract hold body above-mentioned polymer-filled space in occupy that volume is the whole volume in above-mentioned polymer-filled space 75% ~ 90%.
Subtract hold body in polymer-filled space to occupy volume little, then the effect step-down that shortens of holdup time.On the other hand, if subtract hold body to occupy volume excessive, then space in polymer-filled space, actual filled polymer becomes too small, and flow resistance becomes large, on the contrary, easily produces the delay of polymer.Therefore, subtract and hold body occupy volume preferably in the scope of 60% ~ 90% in polymer-filled space, and, better in the scope of 75% ~ 90%.
The feature of inventing the filament spinning component of the 4th scheme is, in the either a program in above-mentioned 1st ~ 3rd scheme, the above-mentioned gap subtracted between the lower end of appearance body and the upper surface of above-mentioned filter is 1 ~ 3mm.
If subtract the excesssive gap between lower end and the upper surface of filter holding body, then elongated by the time of molten polymer delay before filter.On the other hand, if above-mentioned gap is too small, then polymer flow in the gap when flow resistance become large, on the contrary, easily produce the delay of polymer.Therefore, subtract and hold gap between the lower end of body and the upper surface of filter preferably in the scope of 1 ~ 3mm.
The feature of inventing the filament spinning component of the 5th scheme is, in either a program in above-mentioned 1st ~ 4th scheme, above-mentioned filter also has the downside, the sintering that are configured in above-mentioned 1st filter course and has the broken-staple metal fibre of circular cross-section and the 2nd filter course that formed, and the grade of filtration of above-mentioned 2nd filter course is less than the grade of filtration of above-mentioned 1st filter course.
With the 1st filter course while the gelatinous part of refined molten polymer, the foreign matter that the size comprised in trapping molten polymer is larger.On the other hand, with the foreign matter that the 2nd filter course removing the 1st filter course that grade of filtration is little does not trap.
The manufacture method of inventing the filament spinning component of the 6th scheme is the method using stream organizator to manufacture the 2nd filament spinning component, above-mentioned stream organizator has the introduction part importing molten polymer and the polymer-filled space being connected, filling above-mentioned molten polymer with above-mentioned introduction part, is accommodated in above-mentioned polymer-filled space by granular filter material and forms the 1st filament spinning component; Above-mentioned 2nd filament spinning component does not use above-mentioned granular filter material, the feature of this manufacture method is, by be used for the actual packing space reducing the above-mentioned molten polymer of actual filling volume subtract hold body accommodate the above-mentioned polymer-filled space of above-mentioned stream organizator, accommodate in the space of above-mentioned granular filter material in above-mentioned 1st filament spinning component, sintering will be had and there is the broken-staple metal fibre of polygonal cross-section and the filter of the 1st filter course that formed be installed to above-mentioned in above-mentioned stream organizator subtracting on the position that holds on the downside of body.
According to the present invention, due to the 2nd filament spinning component using the stream organizator manufacture identical with using the 1st filament spinning component of granular filter material not use granular filter material, therefore 2 kinds of filament spinning components can common flow path organizator.And, now do not use the 2nd filament spinning component of granular filter material by holding body and accommodate by subtracting and accommodate in the space of granular filter material in the 1st filament spinning component in polymer-filled space, thus the actual packing space of molten polymer can be reduced, the delay of molten polymer in polymer-filled space can be suppressed.
The remodeling method inventing the filament spinning component of the 7th scheme is the method the 1st filament spinning component being transformed into the 2nd filament spinning component not using granular filter material, and described 1st filament spinning component possesses: the stream organizator with the introduction part importing molten polymer and the polymer-filled space being connected, filling above-mentioned molten polymer with above-mentioned introduction part, be housed in the granular filter material in the above-mentioned polymer-filled space of above-mentioned stream organizator, be configured in the transformation front filter of the downside of above-mentioned granular filter material in above-mentioned stream organizator, and be configured in the downside of above-mentioned stream organizator, be formed with the spinning head of the multiple nozzles spinning the above-mentioned molten polymer that have passed above-mentioned transformation front filter respectively, the method is characterized in that, remove the above-mentioned granular filter material in the above-mentioned polymer-filled space of above-mentioned stream organizator, and from above-mentioned stream organizator, take out above-mentioned transformation front filter, by be used for the actual packing space reducing the above-mentioned molten polymer of actual filling volume subtract hold body accommodate in the space of the above-mentioned granular filter material of collecting in above-mentioned polymer-filled space, above-mentioned stream organizator is installed to by having the filter of the 1st filter course that broken-staple metal fibre that sintering has polygonal cross-section formed, on the above-mentioned position subtracted on the downside of appearance body.
The present invention can will use the 1st filament spinning component of granular filter material to be transformed into the 2nd filament spinning component not using granular filter material simply.And, when the 2nd filament spinning component transformation, by accommodating subtracting appearance body in the space of the granular filter material of collecting in polymer-filled space, the actual packing space of molten polymer can be made to reduce, the delay of molten polymer in polymer-filled space can be suppressed.
Accompanying drawing explanation
Fig. 1 is the melt spinning device of this embodiment and the summary construction diagram of spinning hauling machine;
Fig. 2 is the sectional view of the assembly installation portion of filament spinning component and heating compartment;
Fig. 3 is the sectional view of filter;
The outline amplification view in the B portion that the outline amplification view in the A portion that (a) of Fig. 4 is Fig. 3, (b) are Fig. 3;
Fig. 5 uses the filament spinning component of granular filter material and the sectional view of assembly installation portion;
Fig. 6 is that other changes the filament spinning component of form and the sectional view of assembly installation portion.
In figure, 4-filament spinning component (the 2nd filament spinning component); 40-stream organizator; 41-spinning head; 44-filter; 47-introduction part; 49-polymer-filled space; 51-the 1st filter course; 52-the 2nd filter course; 57-subtracts appearance body; 100-filament spinning component (the 1st filament spinning component); The granular filter material of 102-; 103-filter (transformation front filter)
Detailed description of the invention
Then embodiment of the present invention is described.Fig. 1 is the melt spinning device 1 of this embodiment and reels from the summary construction diagram of the spinning hauling machine 2 of the spun yarns Y of this melt spinning device 1.In addition, the above-below direction of Fig. 1 is defined as the above-below direction of melt spinning device 1 and spinning hauling machine 2.First the schematic configuration of melt spinning device 1 and spinning hauling machine 2 is described.
Melt spinning device 1 possesses heating compartment 3, can be installed on multiple filament spinning components 4 of this heating compartment 3 respectively with unloading.Multiple filament spinning component 4 is arranged side by side along the direction vertical with the drawing of Fig. 1.The yarns Y be made up of many filament f spins below from each filament spinning component 4.For comprise filament spinning component 4 melt spinning device 1 structure after describe in detail.
Spinning hauling machine 2 possesses finish guide 10, guide reel 11,5 cord rollers 12 ~ 16, guide reel 17 and coiler devices 18.Spin the threads Y of below respectively after being paid finish by finish guide 10 from multiple filament spinning components 4 of melt spinning device 1, directed roller 11 is carried to 5 cord rollers 12 ~ 16.
5 cord rollers 12 ~ 16 are respectively the warm-up mill in inside with heater, are housed in incubator 19.3 cord rollers 12 ~ 14 of downside are for being used for the warm-up mill of preheating threads Y before stretching.And 2 of upside cord rollers 15,16 for be used for HEAT SETTING stretch after the warm-up mill of threads Y.Further, the yarn transporting velocity being positioned at 2 cord rollers 15,16 of yarn conveyance direction downstream side is than 3 cord rollers 12 ~ 14 fast being positioned at yarn throughput direction upstream side.
First the threads Y be imported in incubator 19 is preheating to the temperature that can stretch during being carried by 3 cord rollers 12 ~ 14 of downside.Then, the threads Y be preheated is stretched by the yarn transporting velocity difference between 2 cord rollers 14,15.Further, threads Y is heated to high temperature, the state that HEAT SETTING is stretched during by the conveying of 2 cord rollers 15,16 of upside.The directed roller 17 of threads Y that 5 cord rollers 12 ~ 16 in insulation case 19 stretch is transported to coiler device 18.
Coiler device 18 possesses coil holder 20 and contacts roller 21 etc.Coil holder 20 has the elongate in shape that the drawing vertical direction along Fig. 1 extends, by not shown motor rotary actuation.This coil holder 20 is axially provided with multiple bobbin 22 side by side along it.The threads Y sent here by guide reel 17 is wound up on multiple bobbin 22 by making coil holder 20 rotate by coiler device 18 simultaneously, forms multiple wound package 23.Contact roller 21 and the surface contact of multiple wound package 23 pay the contact of regulation, the shape of combing wound package 23.
Then, melt spinning device 1 is described in detail.Fig. 2 is the sectional view of the assembly installation portion 31 of filament spinning component 4 and heating compartment 3.In addition, the assembly installation portion 31 in Fig. 2 only in heating compartment 3 is indicated by the solid line, and part in addition represents with double dot dash line.
First, the heating compartment 3 installing filament spinning component 4 is described.Heating compartment 3 is by molten polymer distribution, the parts being supplied to multiple filament spinning component 4.This embodiment is used for the molten polymer such as polyester of below the viscosity 300Pas producing apparel yarn line.The inside of this heating compartment 3 is filled up by the heating agent steam that never illustrated boiler provides, and keeps high temperature (such as about 300 DEG C).Thus, be maintained in certain suitable temperature range by the molten polymer in heating compartment 3.Heating compartment 3 has multiple accommodating recess 30 at its lower surface.Each accommodating recess 30 has cylinder hole shape, is provided with assembly installation portion 31 at the end face of each accommodating recess 30.Filament spinning component 4 is also by maintaining high temperature in the accommodating recess 30 of the heating compartment 3 of insertion high temperature.
The axle portion 33 that assembly installation portion 31 has discoideus fixed part 32 and extends immediately below the substantially central portion edge below this fixed part 32, for cross section is approximate T-shaped parts.Assembly installation portion 31 is formed from fixed part 32 to the lower end in axle portion 33, runs through the polymer stream 34 of this assembly installation portion 31 along the vertical direction.On the end face of fixed part 32 with the not shown accommodating recess 30 being bolted to heating compartment 3.Now, the upper end of polymer stream 34 is connected with the polymer stream of not shown in heating compartment 3.Further, external thread part 33a is formed with at the outer surface in axle portion 33.
Then filament spinning component 4 is described.Filament spinning component 4 inserts the accommodating recess 30 of heating compartment 3, can removably be installed on assembly installation portion 31.Filament spinning component 4 has stream organizator 40, spinning head 41, housing parts 42 and block ring 43 etc.Stream organizator 40 has approximate columned shape.Housing parts 42 has drum, and stream organizator 40 and spinning head 41 are by collecting to this housing parts 42.Further, the multiple nozzles 54 be arranged on spinning head 41 lower surface are exposed in the lower ending opening 42a of housing parts 42.Block ring 43 is arranged on the top of housing parts 42, prevents stream organizator 40 from coming off from housing parts 42.
(stream organizator)
Flow path organizator 40 is described.Stream organizator 40 is the structure of polymer stream being formed with aftermentioned polymer-filled space 49 grade, molten polymer flowing in inside.As shown in Figure 2, stream organizator 40 is formed according to along the 1st channel member 40a, the 2nd channel member 40b that configure and the 3rd channel member 40c by from top.3 channel member 40a ~ 40c are formed with metal respectively.
The cylinder portion 46 having end shape is formed on the top of the 1st channel member 40a.The inner peripheral surface in this portion 46 is formed internal thread part 46a.Further, the introduction part 47 for being imported by molten polymer in filament spinning component 4 is formed in the bottom in cylinder portion 46.When making rotation limit, filament spinning component 4 limit be inserted into the accommodating recess 30 of heating compartment 3, be threaded with the internal thread part 46a in the cylinder portion 46 of the 1st channel member 40a by the external thread part 33a in the axle portion 33 of assembly installation portion 31, filament spinning component 4 is installed on assembly installation portion 31.In addition, assembly installation portion 31 is provided with for preventing filament spinning component 4 from rotating the limiting part 35 of more than predetermined angular relative to assembly installation portion 31.When filament spinning component 4 is installed on assembly installation portion 31, the lower surface ejection in the axle portion 33 of assembly installation portion 31 is on the bottom in the cylinder portion 46 of the 1st channel member 40a, and the polymer stream 34 of assembly installation portion 31 side is connected with the introduction part 47 of the 1st channel member 40a.In addition, clamp between the axle portion 33 of assembly installation portion 31 and the cylinder portion 46 of the 1st stream material 43 for the sealing gasket 48 of sealed polymer stream 34 with the coupling part of introduction part 47.
Be formed with the recess 55 of downwardly facing opening in the bottom of the 1st channel member 40a, the top of the 2nd channel member 40b is in its lower section formed with recess 56 towards upper shed.Polymer-filled space 49 is formed with the recess 55 of the 1st channel member 40a and the recess 56 of the 2nd channel member 40b.Polymer-filled space 49 is connected with introduction part 47, is filled in polymer-filled space 49 from introduction part 47 molten polymer imported in filament spinning component 4.
In polymer-filled space 49, do not accommodate widely used granular filter material in the past, replace to contain to subtract and hold body 57.Flow into the molten polymer in polymer-filled space 49 from introduction part 47 and flow to by the inner surface in polymer-filled space 49 and subtracting the gap that holds and formed between the outer surface of body 57 downside subtracting and hold body 57.Body 57 explained later is held for subtracting.
Subtracting on the position that holds on the downside of body 57 in polymer-filled space 49, is configured with filter 44.Filter 44 has 1st filter course 51,2nd filter course 52 and 3rd filter course 53 folded according to concordant from top.Filter 44 traps the foreign matter comprised in molten polymer.Further, as previously touched, although the filament spinning component 4 of this embodiment does not use granular filter material, filter 44 also possesses the effect of the gelatinous part in the refined molten polymer that granular filter material in the past plays.Detailed construction for filter 44 is aftermentioned.The 2nd channel member 40b, the lower portion of filter 44 is formed with multiple through hole 58.Have passed the molten polymer of filter 44 by the rectification of multiple through hole 58.
The allocation space 59 expanded gradually that more past below is wider is formed in the 3rd channel member 40c.Filter 60 is configured with in the downside of allocation space 59.After spreading in the horizontal direction in allocation space from the molten polymer that multiple through hole streams of the 2nd channel member 40b are next, by filter 60.
(spinning head)
Spinning head 41 contacts with the lower surface of filter 60 and configures.Spinning head 41 has multiple nozzle 54.The molten polymer that have passed 2 filters 44,60 spins from multiple nozzle 54 respectively, becomes many filament f.
(subtract and hold body)
Then be described in detail subtracting appearance body 57.Subtract and hold the parts that body 57 is the near cylindrical with metal material formation.But, subtract and hold the bottom of body 57 and become the cone shape that its middle body gives prominence to downward.This subtracts and holds volume that body 57 is actual packing spaces of the actual filling molten polymer in polymer-filled space 49 to reduce to have larger internal capacity, suppresses to arrange for the purpose of the delay of molten polymer in polymer-filled space 49.
As shown in Figure 2, there is annular step 49a in the sectional area ratio lower space of the upper space in polymer-filled space 49 slightly large between upper space and lower space.On the other hand, subtract appearance body 57 and there is spaced multiple leg 57a spaced apart in the circumferential direction at its peripheral part.Subtracting appearance body 57 places on above-mentioned annular step 49a by multiple leg 57a, accommodates in polymer-filled space from the upper end in polymer-filled space 49 up to bottom with the state in the spaced apart narrow and small gap with its inner surface.
(filter)
Then, the structure of filter 44 is described in detail.Fig. 3 is the sectional view of filter 44.As shown in Figure 3, Fig. 4 (a) be the 1st filter course 51, the outline amplification view in A portion in Fig. 3.Further, Fig. 4 (b) be the 2nd filter course 52, the outline amplification view in B portion in Fig. 3.
The layer that 1st filter course 51 is formed for sintering large flow control 1 broken-staple metal fibre 50a.Be that, as shown in Fig. 4 (a), the 1st broken-staple metal fibre 50a forming the 1st filter course 51 has the polygonal cross-section (such as triangular-section) that bight is acute angle more in detail.As the metal material of raw material becoming the 1st filter course 51, the material that the corrosion resistances such as preferred stainless steel are strong.The 1st broken-staple metal fibre 50a with above-mentioned polygonal cross-section generally can use the manufacture of flutter cutting method.Flutter cutting method makes the metal material rotation limit becoming raw material make cutting element generation self-excited vibration (flutter) carry out processing metallic wittingly by limit, thus manufactures superfine staple fibre.The 1st broken-staple metal fibre 50a that the method manufactures produces the polygonal cross-section of acute angle by above-mentioned flutter.The fibre length of the 1st broken-staple metal fibre 50a is 1.0 ~ 3.0mm, and diameter (being scaled circular cross-section) is 30 ~ 100 μm, and the ratio of fibre length/fibre diameter is 10 ~ 100.
The voidage of the 1st filter course 51 is 60% ~ 80%, roughly the same with the voidage of the metal powder that filament spinning component in the past often uses.Further, because the fibre diameter of the 1st broken-staple metal fibre 50a is larger as mentioned above, being therefore difficult to the grade of filtration of the 1st filter course 51 is diminished, such as, is more than 20 μm.In addition, grade of filtration (also referred to as filtering accuracy) is represent that filter can remove the index of great foreign matter, and above-mentioned grade of filtration 20 μm represents the foreign matter of more than 20 μm of removing more than 95%.
But, be supplied to the molten polymer one partial gelation sometimes of filament spinning component 4.This point, because the 1st filter course 51 is the layer that sintering has broken-staple metal fibre 50 formation of polygonal cross-section, even if be therefore supplied to the molten polymer of filament spinning component 4 from heating compartment 3 and there is above-mentioned gelatinous part, this gelation part is shredded Ground Split, refinement by the sharp bight of a large amount of broken-staple metal fibre 50 when passing through the 1st filter course 51.Although the granular filter material that filament spinning component in the past uses also has the function of the gelatinous part in refined molten polymer, replacing granular filter material in the past by arranging the 1st filter course 51, granular filter material can be omitted.
2nd filter course 52 is also the layer sintering the 2nd a large amount of broken-staple metal fibre 50b formations.In addition, the metal forming the 2nd broken-staple metal fibre 50b stretched wire shape of the 2nd filter course 52 obtains.Therefore, as Fig. 4 (b) Suo Shi, the 2nd broken-staple metal fibre 50b has the cross sectional shape of circular in the cross section orthogonal with fibre length.Wherein, " circular cross-section " is not merely positive toroidal completely, also comprises the cross sectional shape of approximate ellipsoidal.Further, the 2nd filter course 52 material that also handy stainless steel etc. corrosion resistance same with the 1st filter course 51 is strong is formed.The fiber length of the 2nd broken-staple metal fibre 50b is 20 ~ 30mm, and fibre diameter is 10 ~ 30 μm.
The voidage of the 2nd filter course 52 is the same with the 1st filter course 51, is such as 60% ~ 80%.Further, the 2nd filter course 52 is the layer less than the 1st filter course 51 grade of filtration.Because the 2nd broken-staple metal fibre 50b forming the 2nd filter course 52 is less than the 1st broken-staple metal fibre 50a fibre diameter, therefore, it is possible to reduce the grade of filtration of the 2nd filter course 52.The grade of filtration of the 2nd filter course 52 also depend on it and the grade of filtration of the 1st filter course 51, be such as 10 ~ 40 μm.With the 2nd filter course 52, the 1st larger for grade of filtration filter course 51 is not trapped most little foreign matter removing.
3rd filter course 53 is metal cloth filter.Kind for wire netting is not particularly limited, and can use the wire netting such as general plain weave wire netting or other twill weave, the braiding of plain weave seat type, the braiding of twill seat type.The main purpose arranging the 3rd filter course 53 formed with wire netting is reinforcement the 1st filter course 51 and the 2nd filter course 52.
In addition, if the hole forming the wire netting of the 3rd filter course 53 is too thin, then the rigidity of the 3rd filter course 53 is low, can not obtain enough stiffening effects.Therefore, the grid number (hereinafter also referred to as " grid number ") of the per inch of the mesh fineness of expression the 3rd filter course 53 is 30 ~ 100 grids.Be laminated on the 1st filter course 51 and the 2nd filter course 52 by above-mentioned 3rd filter course 53, the rigidity of filter 44 uprises, the distortion of the filter 44 suppressing the pressure of molten polymer to cause.
In addition, above-mentioned 3 layers of filter course 51 ~ 53 both can be assembled in stream organizator 40 respectively, also can integration under the state that 3 layers of filter course 51 ~ 53 is stacked in advance.Such as, also can be engaged by spot welding by 3 layers of filter course 51 ~ 53.Or, also can 3 layers of filter course 51 ~ 53 be made fastened to each other by the ring-type fixed part (gasket ring) being arranged on these 3 layers of filter course 51 ~ 53 peripheral parts.In this case, because the gap between 3 layers of filter course 51 ~ 53 peripheral part is blocked by ring-type fixed part, therefore molten polymer spills from above-mentioned gap and is prevented from.Like this, if the integration of 3 layers of filter course 51 ~ 53, then when when filament spinning component 4 is assembled, the installation of filter 44 or filament spinning component 4 decompose, the operation such as taking-up of filter 44 becomes easy.
But as mentioned above, the filament spinning component 4 of this embodiment contains to subtract and holds body 57 in polymer-filled space 49.Remark additionally below its reason.First, the filament spinning component 4 (being equivalent to the 2nd filament spinning component in the present invention) of this embodiment has shared some main parts size (stream organizator 40, spinning head 41, housing parts 42, block ring 43 etc.) with the filament spinning component 100 (being equivalent to the 1st filament spinning component in the present invention) employing granular filter material as shown in Figure 5.
In filament spinning component 100 shown in Fig. 5, distribution member 101 is housed in the upper space in the polymer-filled space 49 formed in stream organizator 40, contains metal sand, sand grains equigranular filter material 102 in lower space.The major function of granular filter material 102 is the gelatinous part in refined molten polymer.Further, filter 103 is configured with in the downside of granular filter material 102.The major function of this filter 103 is trapping foreign matter, for clipping the structure of the sintered filtering layer of metal nonwoven fabric 112 (identical with above-mentioned 2nd filter course 52 in filament spinning component 4) with 2 pieces of metal mesh filter layers 111.Unlike this, the filament spinning component 4 of this embodiment shown in Fig. 2 does not accommodate granular filter material 102 in polymer-filled space 49.And, be provided with the polygonal cross-section broken-staple metal fibre filter i.e. filter 44 of the 1st filter course 51 having and replace granular filter material 102.
But, the filament spinning component 4 of this embodiment owing to not filling granular filter material 102 in the lower space in the polymer-filled space 49 of stream organizator 40, therefore, in polymer-filled space 49, actual volume of filling the actual packing space of molten polymer becomes large like this, and the holdup time of polymer is elongated.Therefore, contain to subtract in the lower space that this filament spinning component 4 accommodates the polymer-filled space 49 of granular filter material 102 in the filament spinning component 100 of Fig. 5 and hold body 57.So volume reducing and this of the actual packing space in polymer-filled space 49 subtract the equal amount of the volume that holds body 57.Therefore, in polymer-filled space 49, the holdup time of molten polymer shortens, molten polymer by heat ageing cause rotten suppressed.
In addition, if subtract hold body 57 in polymer-filled space 49 to occupy volume little, then the effect step-down that shortens of molten polymer holdup time in polymer-filled space 49.On the other hand, if subtract hold body 57 to occupy volume excessive, then in polymer-filled space 49, the space of actual filled polymer too diminishes, and flow resistance becomes large, on the contrary, easily produces the delay of polymer.Therefore, subtract and hold the volume that occupies in polymer-filled space 49 of body 57 preferably in the scope of 60% ~ 90%.And, in order to shorten the holdup time of molten polymer, subtract hold body 57 in polymer-filled space 49 to occupy volume better in the scope of 75% ~ 90%.
Equally, if subtract the excesssive gap between lower end and the upper surface of filter 44 holding body 57, then elongated by the time of molten polymer delay before filter 44.On the other hand, if above-mentioned gap is too small, then polymer flow in the gap when flow resistance become large, on the contrary, easily produce the delay of polymer.Therefore, subtract and hold clearance G between the lower end of body 57 and the upper surface of filter 44 preferably in the scope of 1 ~ 3mm.
As can be understood from above explanation, the filament spinning component 4 of this embodiment can use to be produced with the parts (stream organizator 40, spinning head 41 etc.) using the parts that use in the filament spinning component 100 of granular filter material 102 identical.That is, first, from the upper space in the polymer-filled space 49 of stream organizator 40 until the lower space configuration of accommodating granular filter material 102 when using as filament spinning component 100 subtracts hold body 57.Further, the filter 44 comprising the 1st filter course 51 sintering the 1st broken-staple metal fibre 50a formation with polygonal cross-section is installed in stream organizator 40 on the position subtracting and hold on the downside of body 57.Then, will the above-mentioned stream organizator 40 that subtract and hold body 57 and filter 44 be installed and spinning head 41 is accommodated in housing parts 42, then block ring 43 be installed.
Like this, owing to using the stream organizator 40 identical with using the filament spinning component 100 of granular filter material 102 to manufacture the filament spinning component 4 not using granular filter material 102, therefore 2 kinds of filament spinning components 4,100 can common flow path organizator 40.And, when common flow path organizator 40, by by subtract hold body 57 accommodate accommodate granular filter material 102 in the filament spinning component 100 employing granular filter material 102 space in, can reduce not use the actual packing space of molten polymer in the filament spinning component 4 of granular filter material 102, the delay of molten polymer in polymer-filled space 49 can be suppressed.
Or, also the filament spinning component 100 of granular for the use of Fig. 5 filter material 102 can be transformed into the filament spinning component 4 not using this embodiment of granular filter material 102 of Fig. 2.In this case, first take off block ring 43, from housing parts 42, take out stream organizator 40.Then, the distribution member 101 in the polymer-filled space 49 of stream organizator 40 and granular filter material 102 is removed.Further, filter 103 (being equivalent to the filter before transformation of the present invention) is taken out from stream organizator 40.And, appearance body 57 will be subtracted from the upper space of collecting distribution member 101 up to the lower space of accommodating granular filter material 102 and be configured in polymer-filled space 49.Further, subtracting on the position that holds on the downside of body 57 of stream organizator 40 is installed to by having the filter 44 of the 1st filter course 51 that the 1st broken-staple metal fibre 50a that sintering has polygonal cross-section formed.Then, again accommodating in housing parts 42 by being provided with the above-mentioned stream organizator 40 subtracting appearance body 57 and filter 44, then block ring 43 being installed.
Like this, simply the filament spinning component 100 employing granular filter material 102 can be transformed into the filament spinning component 4 not using granular filter material 102.Wherein, when transforming to filament spinning component 4, by by subtract hold body 57 accommodate polymer-filled space 49, once accommodate in the lower space of granular filter material 102, the actual packing space of molten polymer can be made to reduce, the delay of molten polymer in polymer-filled space 49 can be suppressed.
Then, the change form of being applied with all changes to above-mentioned embodiment is described.But for having part mutually isostructural with above-mentioned embodiment, add identical mark, suitably the description thereof will be omitted.
1) as long as subtract and hold body 57 can to reduce the structure of actual packing space in polymer-filled space 49, that fill molten polymer just passable, its shape is not limited to above-mentioned embodiment.Such as, also can as shown in FIG. 6, subtract that to hold body 57 be its lower surface shape parallel with filter 44.Further, although above-mentioned embodiment subtract hold body 57 be solid parts, subtract appearance body 57 also can be the hollow part therein with airtight blank part.
Further, because above-mentioned embodiment distribution member 101 in the filament spinning component 100 of Fig. 5 is configured on granular filter material 102, therefore subtract in the filament spinning component 4 of Fig. 2 and hold the upper space of body 57 from polymer-filled space 49 until lower space configuration.That is, the first half subtracting appearance body 57 of filament spinning component 4 is the structure with the function identical with the distribution member 101 of filament spinning component 100.Unlike this, in the filament spinning component 100 employing granular filter material 102, different according to conditions such as the viscosity of molten polymer, sometimes can also not want distribution member 101.In this case, subtract appearance body 57 also can only be configured in the lower space of the granular filter material 102 of collecting in polymer-filled space 49.
2) although the filament spinning component 4 of above-mentioned embodiment is for spinning the assembly of the 1 one thread Y be made up of many filament f, the filament spinning component spinning the yarns Y of more than 2 also can use the present invention.Further, the filament spinning component of the introduction part 47 of the importing molten polymer with more than 2 can also be used for.In these forms, also can with from the radical of the spun yarns Y of spinning head 41 or the quantity of introduction part 47 is corresponding arranges multiple polymer-filled space 49.In this case, in multiple polymer-filled space 49, configuration subtracts appearance body 57 respectively.
3) although above-mentioned embodiment middle filtrator 44 is the structure of having folded 3 layers of filter course 51,52,53 from top according to concordant, as long as but the filter that filter 44 at least possesses the 1st filter course 51 of polygonal cross-section broken-staple metal fibre sintered filter is just passable, is not limited to the structure of above-mentioned embodiment.Such as, also can in the upside of the 1st filter course 51 stacked the 3rd filter course 53 be made up of wire netting.Or, otherwise also can omit the 3rd filter course 53, filter 44 is only made up of the 1st filter course 51 and the 2nd filter course 52 these 2 layers.Further, the 2nd filter course 52 that grade of filtration is little also can be formed with the wire netting (such as about 400 grids) that mesh is thin.

Claims (7)

1. a filament spinning component, is characterized in that, possesses:
Stream organizator, has the introduction part importing molten polymer and the polymer-filled space being connected, filling above-mentioned molten polymer with above-mentioned introduction part;
Subtract appearance body, be housed at least lower space in the above-mentioned polymer-filled space of above-mentioned stream organizator;
Filter, is configured in above-mentioned in above-mentioned stream organizator subtracting on the position that holds on the downside of body, and has sintering and have the broken-staple metal fibre of polygonal cross-section and the 1st filter course that formed; And
Spinning head, is configured in the downside of above-mentioned stream organizator, is formed with the multiple nozzles spinning the above-mentioned molten polymer that have passed above-mentioned filter respectively.
2. filament spinning component as claimed in claim 1, is characterized in that, above-mentioned subtract hold body in above-mentioned polymer-filled space occupy that volume is the whole volume in above-mentioned polymer-filled space 60% ~ 90%.
3. filament spinning component as claimed in claim 2, is characterized in that, above-mentioned subtract hold body in above-mentioned polymer-filled space occupy that volume is the whole volume in above-mentioned polymer-filled space 75% ~ 90%.
4. the filament spinning component as described in any one in claims 1 to 3, is characterized in that, the above-mentioned gap subtracted between the lower end of appearance body and the upper surface of above-mentioned filter is 1 ~ 3mm.
5. the filament spinning component as described in any one in Claims 1 to 4, is characterized in that,
Above-mentioned filter also has the downside, the sintering that are configured in above-mentioned 1st filter course and has the broken-staple metal fibre of circular cross-section and the 2nd filter course that formed,
The grade of filtration of above-mentioned 2nd filter course is less than the grade of filtration of above-mentioned 1st filter course.
6. the manufacture method of a filament spinning component, stream organizator is used to manufacture the 2nd filament spinning component, above-mentioned stream organizator has the introduction part importing molten polymer and the polymer-filled space being connected, filling above-mentioned molten polymer with above-mentioned introduction part, is accommodated in above-mentioned polymer-filled space by granular filter material and forms the 1st filament spinning component; Above-mentioned 2nd filament spinning component does not use above-mentioned granular filter material, and the feature of this manufacture method is,
By be used for the actual packing space reducing the above-mentioned molten polymer of actual filling volume subtract hold body accommodate the above-mentioned polymer-filled space of above-mentioned stream organizator, accommodate in the space of above-mentioned granular filter material in above-mentioned 1st filament spinning component,
Sintering will be had there is the broken-staple metal fibre of polygonal cross-section and the filter of the 1st filter course that formed be installed to above-mentioned in above-mentioned stream organizator subtracting on the position that holds on the downside of body.
7. the 1st filament spinning component is transformed into a method for the 2nd filament spinning component not using granular filter material, described 1st filament spinning component possesses: the stream organizator with the introduction part importing molten polymer and the polymer-filled space being connected, filling above-mentioned molten polymer with above-mentioned introduction part; Be housed in the granular filter material in the above-mentioned polymer-filled space of above-mentioned stream organizator; Be configured in the transformation front filter of the downside of above-mentioned granular filter material in above-mentioned stream organizator; And be configured in the downside of above-mentioned stream organizator, be formed with the spinning head of the multiple nozzles spinning the above-mentioned molten polymer that have passed above-mentioned transformation front filter respectively, the method is characterized in that,
Remove the above-mentioned granular filter material in the above-mentioned polymer-filled space of above-mentioned stream organizator, and take out above-mentioned transformation front filter from above-mentioned stream organizator,
By be used for the actual packing space reducing the above-mentioned molten polymer of actual filling volume subtract hold body accommodate in the space of the above-mentioned granular filter material of collecting in above-mentioned polymer-filled space,
The filter with the 1st filter course sintering the broken-staple metal fibre formation with polygonal cross-section is installed on above-mentioned stream organizator, the above-mentioned position subtracted on the downside of appearance body.
CN201410566500.1A 2013-12-19 2014-10-22 Spinning assembly, spinning assembly manufacturing method, and spinning assembly improving method Pending CN104726942A (en)

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