CN100507097C - Spinneret for wet-spinning acrylic sheath-core compound fiber - Google Patents
Spinneret for wet-spinning acrylic sheath-core compound fiber Download PDFInfo
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- CN100507097C CN100507097C CNB2005800066667A CN200580006666A CN100507097C CN 100507097 C CN100507097 C CN 100507097C CN B2005800066667 A CNB2005800066667 A CN B2005800066667A CN 200580006666 A CN200580006666 A CN 200580006666A CN 100507097 C CN100507097 C CN 100507097C
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/34—Core-skin structure; Spinnerette packs therefor
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- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Multicomponent Fibers (AREA)
Abstract
A spinneret for wet-spinning capable of stably wet-spinning, with high productivity, an acrylic sheath-core compound fiber excellent in the uniformity of a sheath-core compound structure. The spinneret comprises a distribution board distributing core components and sheath components, an upper spinneret board which is partitioned in square blocks in which core component supply holes are arranged parallel with each other in multiple rows, a hole density is 100 to 150 holes/cm<2> and the number of holes is 100 to 500/block, a plurality of block comprise the core component supply holes of 5000 to 30,000 in total disposed in vertical and parallel rows, and sheath component supply holes are disposed at the intersections of the partitions of the blocks for the core component supply holes, a lower spinneret board in which composite flow discharge holes are disposed, in the form of blocks, at hole positions corresponding to the core component supply holes of the upper spinneret board and having sheath component in-flow grooves surrounding the blocks of the composite flow discharge holes and sheath component lead-in grooves leading sheath components between composite flow discharge hole rows, and a spacer forming, between the upper spinneret board and the lower spinneret board, a clearance for flowing the sheath components into the composite flow discharge holes.
Description
Technical field
The present invention relates to be used to make the improvement wet spinning spinning head of propylene core skin composite fibre.
Background technology
As core skin composite spinning spinning head, proposed by the existing spinning nozzle that constitutes with lower member (with reference to patent documentation 1: the spy opens flat 9-No. 21015 communiques): distribution plate with core composition dispensing orifice and outer shell component dispensing orifice; Have the outer shell component supply hole that is communicated with outer shell component dispensing orifice and be communicated with and cut apart the top spinnerets of a plurality of core composition supply holes that the multiple row of supply core composition is arranged in parallel with core composition dispensing orifice; Have in the axial direction and combined-flow orifice of spinneret that the core composition supply hole of top spinnerets is integrated and have around combined-flow orifice of spinneret group and between the combined-flow orifice of spinneret row outside the bottom spinnerets of shell component lead-in groove; Between top spinnerets and bottom spinnerets, form the gap and be used to make the slip gauge of outer shell component from outer shell component lead-in groove inflow combined-flow orifice of spinneret.This spinning nozzle hole density is 50/cm
2And can realize the porous of spinning hole count more than 3000, and textural at spinning head, in the making of this spinning head, use known method (for example, with reference to patent documentation 2: the spy opens flat 11-No. 350241 communiques) and its to make easily.
But, in this spinning nozzle, though with polyester fiber, the core skin of polyamide fiber etc. is compound to carry out under the situation of melt spinning and the propylene core skin composite fibre that the single fiber dimension is less carries out not having special problem under the situation of wet spinning, but in the wet spinning of and the propylene core skin composite fibre that the single fiber dimension is Duoed above 5000 single fiber dimension slower than melt spinning at spinning speed, though need to use spinning hole count spinning head how, but when become shunting from the core of core composition supply hole around, making outer shell component interflow and formation combined-flow, if a plurality of significantly row of change long core composition supply hole how of hole count that dispose abreast, then be difficult to make outer shell component to import equably in each combined-flow orifice of spinneret, and the core skin than change or core off-centre and filament between produce the core skin composite fibre that there is fluctuation in the core leather structure.
Summary of the invention
The present invention improves the problem of the above-mentioned spinning nozzle that exemplifies, but the object of the invention provides the fluctuation of the core skin compound structure that can eliminate between filament and high production rate and the propylene core skin composite fibre of wet spinning core skin compound structure excellent in uniform stably, and simple structure, making are easily, and have the wet spinning spinning head of the propylene core skin composite fibre of the spinning hole count more than 5000.
The present invention is a kind of with the wet spinning spinning head of at least one side in core composition and the outer shell component as the propylene core skin composite fibre of acrylonitrile polymerization body, it is characterized in that, by constituting with lower member: distribution plate, it has core composition dispensing orifice and outer shell component dispensing orifice; The top spinnerets, it is divided into hole density is 100～150/cm
2, hole count is that the square block of 100～500/block and be arranged in parallel therein multiple row and core composition dispensing orifice are communicated with and cut apart the core composition supply hole of supplying with the core composition, and total hole count that a plurality of blocks have file and a side by side configuration is 5000～30000 a core composition supply hole, and the outer shell component supply hole that will be communicated with outer shell component dispensing orifice is configured on the division intersection point of core composition supply hole block; The bottom spinnerets, as a plurality of blocks with each corresponding hole site of core composition supply hole of top spinnerets on the configuration entrance hole diameter combined-flow orifice of spinneret bigger than the outlet aperture of core composition supply hole, and have the outer shell component that surrounds combined-flow orifice of spinneret block flow into groove and with should outer shell component flow into groove and be communicated with and make the outer shell component lead-in groove of outer shell component importing combined-flow orifice of spinneret between being listed as; Slip gauge, it makes the inlet alignment of the combined-flow orifice of spinneret of the outlet of core composition supply hole of top spinnerets and bottom spinnerets, simultaneously, forms and makes outer shell component use the gap to the runner of combined-flow orifice of spinneret inflow.
According to the present invention, the core skin composite spinning spinning head of high density holes porous can be provided, to form the single fiber dimension be 5000～30000 the more propylene core skin composite fibre of single fiber dimension by increasing spinning hole count, so-called porous, simultaneously, can eliminate the fluctuation of the core skin compound structure between filament and can stablize and the propylene core skin composite fibre of high production rate ground spinning excellent in uniform, and can corresponding spinning condition on a large scale, and simple structure, make easily with respect to various core compositions, outer shell component.
Description of drawings
Fig. 1 is the nozzle stereogram (partial sectional view) of spinning nozzle of the present invention.
Fig. 2 is the local amplification view of the major part of expression spinning nozzle of the present invention.
Fig. 3 is the vertical view of expression embodiment computer capacity and expression embodiment result's chart.Among the figure:
1-outer shell component supply hole, 2-core composition supply hole, 3-top spinnerets,
4-combined-flow orifice of spinneret, 5-outer shell component flows into groove, 6-outer shell component lead-in groove,
7-bottom spinnerets, 8-slip gauge
The specific embodiment
Embodiments of the present invention are described with reference to the accompanying drawings.
Spinning nozzle of the present invention is an employed spinning head when making propylene core skin composite fibre with wet spinning, and especially in the formation of spinning head, the top spinnerets and the bottom spinnerets that dispose by slip gauge have the constructional feature of knot.Fig. 1 is the nozzle stereogram (partial sectional view) of spinning nozzle of the present invention, and Fig. 2 is the local amplification view of the major part of expression spinning nozzle of the present invention.Among the figure, mark 1 is outer shell component supply hole, and mark 2 is core composition supply holes, mark 3 is that top spinnerets, mark 4 are combined-flow orifice of spinnerets, and mark 5 is that outer shell component flows into groove, and mark 6 is outer shell component lead-in grooves, mark 7 is bottom spinneretss, mark 8 expression slip gauges.
On the spinnerets of top with block counts be 20～60 and with 25～40 for disposing the block of core composition supply hole best, and to be provided with total hole count be 5000～30000, is preferably 6000～10000 core composition supply hole.Though the block that disposed of expectation is the combination of the block of identical hole count, can make up with different hole count blocks according to the shape of spinnerets, mounting means etc.In the block of a core composition supply hole, though the columns of the core composition supply hole that is arranged in parallel is not particularly limited, a row hole count of expectation core composition supply hole is 10～20 aspect the uniform core skin combined-flow forming.In addition, becoming shunting to spue as the core from the stable wire of core composition supply hole to supply with aspect the core composition, its entrance hole diameter of core composition supply hole of expectation top spinnerets is 300～500 μ m, and the outlet aperture is 0～90 μ m.
The block of core composition supply hole must as far as possible evenly be configured on the spinnerets, in file and dispose a plurality of blocks side by side equably and make aspect the hole count increase, and the needs of with good grounds again perforation processing, the expectation spinnerets be square.In addition, being positioned at of this top spinnerets 3 have on the position as each bight of quadrangle of the division intersection point of the quadrangle block of core composition supply hole with outside the outer shell component supply hole 1 that is communicated with of shell component dispensing orifice.Aspect the shell component, the aperture of the outer shell component supply hole 1 of expectation top spinnerets 3 is 2.0～4.0mm outside evenly supplying with apace.
The combined-flow orifice of spinneret 4 of bottom spinnerets 7 is holes of the combined-flow of formation and spue core composition and outer shell component, aspect spuing as stable core skin combined-flow, expects that its entrance hole diameter is at least 300～500 μ m, the outlet aperture is 50～90 μ m.In addition, forming aspect the stable core skin combined-flow, outer shell component inflow groove 5 its groove widths that the block of combined-flow orifice of spinneret 4 is surrounded in expectation are 2.0～5.0mm, make outer shell component lead-in groove 6 its groove widths 0.3～1.0mm between the combined-flow orifice of spinneret row in the outer shell component Lead-In Area piece.Should also can be arranged on the appropriate location that the combined-flow orifice of spinneret is listed as orthogonally by outer shell component lead-in groove 6 with the hole row.
In spinning nozzle shown in Figure 1, each core composition supply hole 2 that the core composition disposes as the core composition supply hole block of top spinnerets 3 from the core composition dispensing orifice of distribution plate guiding, and supply with to the inlet portion of combined-flow orifice of spinneret 4 from the export department of core composition supply hole 2 as the wire stream that spues.Outer shell component supplies to the outer shell component inflow groove 5 of combined-flow orifice of spinneret 4 blocks that surround bottom spinnerets 7 by the outer shell component supply hole 1 of top spinnerets 3 from the outer shell component dispensing orifice of distribution plate, and shell component flows into groove 5 and directs into outer shell component lead-in groove 6 between combined-flow orifice of spinneret row in each block outside this, and mainly overflow from outer shell component lead-in groove 6, again by being guided between top spinnerets 3 and the bottom spinnerets 7 in the folded gap and bearing the pressure loss and, thereby supply with to each combined-flow orifice of spinneret 4 equably by rectification.Rectified outer shell component stream from around encase the core of supplying with as the export department of stream that spue and become shunting by core composition supply hole 2, simultaneously, inflow combined-flow orifice of spinneret 4 also becomes core skin combined-flow and is then spued by the export department of combined-flow orifice of spinneret 7.Gap between top spinnerets 3 and the bottom spinnerets 7 is set at any width by slip gauge 8 and forms.
Of the present invention first is characterised in that, by blockization core composition supply hole and combined-flow orifice of spinneret be set, can to conduct spue stream supply with evenly import in each combined-flow orifice of spinneret of core composition outside shell component, and form uniform core skin combined-flow.
Make propylene core skin composite fibre in order to utilize wet spinning high production rate ground, though need increase the hole count of the combined-flow orifice of spinneret of the core skin combined-flow that spues is so-called porous, but between the core skin combined-flow that utilizes each combined-flow orifice of spinneret to form, produce fluctuation and the fluctuation that is easy to produce the core skin compound structure between filament along with porous.But, according to the present invention, by blockization core composition supply hole and combined-flow orifice of spinneret blockization be set, when forming uniform core skin combined-flow, can realize the porous of the wet spinning core skin composite spinning spinning head of 5000～30000 of spinning hole counts.
Of the present invention second is characterised in that, on the spinnerets of top on the hole count of set core composition supply hole and the bottom spinnerets hole count of set combined-flow orifice of spinneret be respectively 5000～30000, and can obtain being beneficial to the spinning nozzle of economy.In spinning nozzle, for boosting productivity, it is important that easy and economy reaches the making that obtains spinning head at an easy rate.Usually the wet spinning spinning head of fiber is because the pressure when weaving silk is lower, so the perforation handling ease in the thin thickness of spinnerets and the hole that spues.On the other hand, at composite fibre, particularly in the wet spinning spinning head of core skin composite fibre, owing to bearing the very big pressure loss by close clearance the time, the spinning solution by outer shell component carries out rectification, so spinnerets need bear the thickness of this pressure, therefore, increase the perforation processing charges in the hole that spues.
But, in spinning nozzle of the present invention, the top spinnerets is will be above it and following as tabular surface and only utilize core composition supply hole and the perforation of outer shell component supply hole processing and making, the bottom spinnerets be with below it as tabular surface and utilize the perforation processing of combined-flow orifice of spinneret and straight line grooving processing that the outer shell component on the plate face flows into the outer shell component lead-in groove between groove, combined-flow orifice of spinneret row in and making.Therefore, especially when core composition supply hole and combined-flow orifice of spinneret shape are identical, the grooving of implementing the perforation processing of outer shell component supply hole on can one in two spinneretss of same perforations processing and implement outer shell component inflow groove, outer shell component lead-in groove on another top spinnerets is processed and can be made the bottom spinnerets, the cheaper economy of its production costs of the making of spinning head of the present invention.In addition, in spinning nozzle of the present invention, top spinnerets and bottom spinnerets can be distinguished thin plateization to 5mm according to aperture, hole count, supply pressure testing, material etc., and not only make the spinning head lightweight also can be convenient to washing and cleaning operation.
The of the present invention the 3rd is characterised in that, the gap that forms between top spinnerets and bottom spinnerets can change arbitrarily by there being the different slip gauge of thickness.When core skin composite spinning, the gap between common top spinnerets and the bottom spinnerets must be that the viscosity of outer shell component also diminishes, and viscosity uprises and also becomes big.In addition, this interval is set at only value according to kind and combination, concentration, discharge-amount, the discharge-amount of core composition and outer shell component than various spinning conditions such as (core skin ratio), spinning temperatures.In spinning head of the present invention, only can just can easily change above-mentioned interval by the cheap slip gauge of making that has 0.03～0.5mm thickness usually at 30～500 μ m by changing, and just can corresponding spinning condition on a large scale with a spinning head, thereby economy be splendid.
Spinning nozzle of the present invention when utilizing wet spinning to make the both sides of core composition and outer shell component or a side as the propylene core skin composite fibre of acrylonitrile polymerization body spinning head and use.In addition, thereby but spinning nozzle of the present invention by core composition and outer shell component combination and the propylene core skin composite fibre porous high production rate by will having added various functions, performance make.Core composition and outer shell component are under the situation of acrylonitrile polymerization body, become different combinations such as rerum natura, function.Beyond the acrylonitrile polymerization body as core composition or the employed condensate of outer shell component so long as can carry out the condensate of wet spinning and get final product, for example, can enumerate ethlyene dichloride condensate, cellulose condensate etc.
(embodiment)
Spinning-nozzle and the spinning-nozzle that is divided into the quadrangle block of 750/block of hole count for the quadrangle block that is divided into 280/block of hole count, under the conditions shown in Table 1, the discharge-amount that calculates the spinning solution that spues from the combined-flow orifice of spinneret with following formula distribute (supposition apart from outside the discharge-amount in shell component supply hole hole farthest).
Have, calculating is to implement in 1/4 scope with block of shell component supply hole outside (Fig. 3 bend part) again.Fig. 3 ecbatic, table 2 expression CV value.
Pipe runner difference pressuring loss formula △ P=128 η QL/d
4π
Rectangularl runner difference pressuring loss formula △ P=64 η ab
3x
Parallel cylinder stream pressure loss formula △ P=6 η QL
n(r
2/ r
1)/h
3π
Wherein,
△ P: the pressure loss (kg/m
3)
η: viscosity (kg second/m
3)
Q: discharge-amount (m
3/ second)
L: length (m)
D: bore (m)
A: the long limit (m) of rectangle
B: rectangle minor face (m)
X: coefficient
H: parallel cylinder distance (m)
r
2: plectane outer radius (m)
r
1: plectane inside radius (m)
Table 1
D in the table (C), GH, D (S), DL (S), FH, FD, SH, SD and FL represent following length.
Table 2
| The hole count CV value of each block |
| 1.1% nozzle, 2 750 holes 4.3%, nozzle 1280 holes |
Can clearly draw from the result of table 2, the spinning-nozzle in being divided in the quadrangle block that hole count is 280 a/block and being divided in the spinning-nozzle in the quadrangle block that hole count is 750 a/block, the former its fluctuation that spues is less.The fluctuation of this discharge-amount constitutes the fluctuation of the fibrousness (rugosity) of the fiber that forms, and when this fluctuates when big, becomes problem aspect feel when making fiber product and the outward appearance.
Availability on the industry
Spinning nozzle of the present invention is owing to its spinning hole count is 5000～30000 to be suitable for using when utilizing the industrial manufacturing single fiber of wet spinning dimension to be the more propylene core skin composite fibre of 5000～30000 single fiber dimension, if and at least one party is the acrylonitrile polymerization body in core composition and the outer shell component, thus then by the core composition or outside use various condensates or functional condensate can utilize wet spinning additionally not increase to produce the local propylene core skin composite fibre of making the tacryl characteristic property that can't obtain in the core skin composite fibre of polyester fiber that multiple performance utilizing melt spinning or Fypro in the shell component. Especially, if outer shell component is the acrylonitrile polymerization body, then under the condition that keeps the distinctive distinctiveness of tacryl, the propylene core skin composite fibre that manufacturing is given multiple function according to the core composition becomes possibility.
Claims (1)
1. the wet spinning spinning head of a propylene core skin composite fibre, its with at least one side in core composition and the outer shell component as the acrylonitrile polymerization body,
By constituting with lower member: distribution plate, it has core composition dispensing orifice and outer shell component dispensing orifice;
The top spinnerets;
The bottom spinnerets;
Slip gauge, it makes the inlet alignment of the combined-flow orifice of spinneret of the outlet of core composition supply hole of top spinnerets and bottom spinnerets, and simultaneously, form and make outer shell component use the gap to the runner of combined-flow orifice of spinneret inflow,
It is characterized in that,
It is 100～150/cm that above-mentioned top spinnerets is divided into hole density
2, hole count is that the square block of 100～500/block and be arranged in parallel therein multiple row and core composition dispensing orifice are communicated with and cut apart the core composition supply hole of supplying with the core composition, and total hole count that a plurality of blocks have file and a side by side configuration is 5000～30000 a core composition supply hole, the outer shell component supply hole that will be communicated with outer shell component dispensing orifice is configured on the division intersection point of core composition supply hole block
Above-mentioned bottom spinnerets as a plurality of blocks with each corresponding hole site of core composition supply hole of top spinnerets on the configuration entrance hole diameter combined-flow orifice of spinneret bigger than the outlet aperture of core composition supply hole, and have the outer shell component that surrounds combined-flow orifice of spinneret block flow into groove and with should outer shell component flow into groove and be communicated with and make the outer shell component lead-in groove of outer shell component importing combined-flow orifice of spinneret between being listed as.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004148458 | 2004-05-19 | ||
| JP148458/2004 | 2004-05-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1926267A CN1926267A (en) | 2007-03-07 |
| CN100507097C true CN100507097C (en) | 2009-07-01 |
Family
ID=35394183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800066667A Active CN100507097C (en) | 2004-05-19 | 2005-05-17 | Spinneret for wet-spinning acrylic sheath-core compound fiber |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4498354B2 (en) |
| CN (1) | CN100507097C (en) |
| WO (1) | WO2005111280A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101821937B1 (en) * | 2013-02-26 | 2018-01-24 | 미쯔비시 케미컬 주식회사 | Spinning nozzle, process for producing fibrous mass, fibrous mass, and paper |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0921015A (en) * | 1995-07-03 | 1997-01-21 | Mitsubishi Rayon Co Ltd | Sheath core conjugate spinneret |
| JP3814413B2 (en) * | 1998-06-03 | 2006-08-30 | 三菱レイヨン株式会社 | Die for wet spinning of core-sheath composite fiber |
| JP2004197284A (en) * | 2002-12-20 | 2004-07-15 | Kasen Nozuru Seisakusho:Kk | Spinneret device for island in sea type conjugate fiber and method for producing island in sea type conjugate fiber by using the same |
-
2005
- 2005-05-17 JP JP2006513604A patent/JP4498354B2/en active Active
- 2005-05-17 CN CNB2005800066667A patent/CN100507097C/en active Active
- 2005-05-17 WO PCT/JP2005/008958 patent/WO2005111280A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| JP4498354B2 (en) | 2010-07-07 |
| JPWO2005111280A1 (en) | 2008-03-27 |
| WO2005111280A1 (en) | 2005-11-24 |
| CN1926267A (en) | 2007-03-07 |
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