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Publication numberUS3176345 A
Publication typeGrant
Publication dateApr 6, 1965
Filing dateJun 25, 1962
Priority dateJun 25, 1962
Publication numberUS 3176345 A, US 3176345A, US-A-3176345, US3176345 A, US3176345A
InventorsFred B Powell
Original AssigneeMonsanto Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Spinnerette
US 3176345 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

April 6, 1965 F. B. POWELL 3,176,345

SPINNERETTE Filed June 25, 1962 INVENTOR. FRED B. POWEL L Kiwi. 73W

ATToRNd? United States Patent 3,176,345 SPINNERETTE Fred B. Powell, Decatur, Ala, assignor to Monsanto (lumpany, a corporation of Delaware Filed June 25, 1962, Ser. No. 204,746 2 Claims. {(ll. 18-8) This invention relates to spinnerettes and more particularly to spinnerettes for forming conjugate filaments.

In the manufacturing of conventional conjugate spinnerettes great expense and diificulty are encountered. The holes in the spinnerette must be precisely formed and of a precise size. If one of the holes is ruined during the manufacturing operation, the cost of the spinnereite to that point may be a loss. Also, when one of the holes in the conventional spinnere-tte Wears oversize the spinnerette must be discarded. The extreme dimensional accuracy required in a conventional :spinnerette makes the cost of the spinnerette very high. With this in mind, one of the objects of this invention is to provide a novel and improved spinnerette.

Another object of this invention is to provide a conjugate spinnerette which is laminated in construction.

Still another object of this invention is to provide a conjugate spinnerette which i inexpensive and easy to fabricate.

A still further object of this invention is to provide a spinnerette wherein the spinning orifices are slots in a lamination.

Yet another object of this invention is to provide a conjugate spinnerette wherein the amounts of each spinning solution going to form the filament can be very precisely controlled.

Another object of this invention is to provide a conjugate spinnerette wherein manifolds positioned on opposite sides of a sheet feed different spinning solutions into a slot leading to the edge of the sheet to define a spinning orifice.

One embodiment of the present invention contemplates a conjugate spinnerette wherein a sheet or lamination sandwiched between a pair of manifolds is provided with slotwhich extend to the edge of the sheet to form spinning orifices. Different spinning solutions fed into the slots from the manifolds travel through and exit from these slots as conjugate filaments.

Other objects and advantages of the invention will become apparent when the following detailed description is read in conjunction with the appended drawing, in which the single figure is a partially exploded perspective view showing the construction of one embodiment of the invention.

Referring now in detail to the drawing, a plurality of fiat manifolds or plates 11 and 12 are shown interleaved with a plurality of sheets or laminations 13, these elements being stacked against each other in the order 11-13-12- 13-11-13-12 to form a spinnerette l6. Bolts 17 hold the stacked elements together.

The sheets or lamination 13, which are each sandwiched between a plate 11 and a plate 12, are provided with a plurality of slots 29 extending from the edge of the sheet. These slots 20 form the spinning orifices or nozzles of the spinnerette 1'6. For the sake of clarity, the sheets 13 are shown in the drawing having a substantial thicknes and the slots 20 are shown having a substantial width. In actual practice, the sheets 13 are very thin and the slots 29 are very narrow. Since the size of each of the filaments formed by the spinnerette 16 will be determined by the cross sectional area of the slots 20, the sheets 13 must be thin and the slots 2% narrow.

Each of the plates or manifolds 11 and 12 serves as a manifold for feeding spinning solutions into the slots 20 ice in the sheet 13, the manifold 11 feeding one spinning solution into one side of the slots 20 and the manifold 12 feeding another spinning solution into the other side of the slots 2%. These solutions or compositions fiow through the slots 2i? and exit from the spinnerette as conjugate filaments. The paths of these filaments leaving the spinnerctte are designated :by numeral 21.

The plates 11 are each provided with L-shaped manifold openings 24 which overlap the inner ends of the slots 29 so that a spinning solution flowing into the opening 24 will flow into and through the slots 29. The manifold openings 24 are connected through aligned apertures 25 and 26 in the plates 13 and sheets 11, respectively, to a lower manifold 39 connected to a first source 31 of spinning solution or composition. Thus, spinning solution from the source 31 will flow through the passageways defined by the apertures 25 and 26 to the manifold openings 24, and will flow from the openings 24 through the slots 26.

Tl e plates 12 are each provided with reverse L-shaped manifold openings 34 which overlap the inner ends of the slots 20 so that a spinning solution flowing into the openings 34 will flow into and through the slots 20 along with the solution flowing from the manifold openings 24 in the plates 11. The manifold openings 34 are connected through aligned apertures 35 and 36 in the plates Ill and sheets 13, rsepectively, to an upper manifold connected to a second source 41 of spinning solution or composition. Thus, spinning solution from the source 41 will flow through the passageways defined by the aligned apertures 35 and 36 to the manifold openings 34, and Wiil then flow from the openings 34 through the slots 26 In operation of the spinnerette, the first spinning solution is pumped from the source 31 through the lower manifold to the manifold openings 24 in the plates 11. From the manifold openings 2d the spinning solution flows into and through the slots 26 in the sheets 13. Spinning solution from the source 41 is pumped through the upper manifold openings 34 in the plates 12, from which it flows into the slots 2d to join the solution from the source 31. The two compositions exit from the slots 29 as conjugate filaments.

It can readily he seen that this spinnerette is inexpensive and easy to manufacture. The only critical dimensions are the thickness of the sheet 13 and the width of the slot 29. Should some of the spinning orifice become defective during operation of the spinnerette, the sheet 13 in which the defective opening appears is merely replaced. Thus, it is not necessary to discard the whole spinnerette. Also, since the two spinning streams do not meet until just before leaving the spinnerette, the amounts of each solution going into the filaments can be very precisely controlled.

It is to be understood that the embodiment disclosed herein is merely illustrative and that this embodiment can be altered or amended and that numerous other embodiments can be contemplated which will fall within the spirit and scope of the invention.

hat is claimed is:

1. A spinning system, comprising a plurality of first and second plates arranged in alternated relationship, a plurality of sheets interleaved between the plates so that adjacent plates are separated by one of the sheets, each of said sheets having therein a plurality of slots extending inwardly from an edge of said sheet, said slots defining spinnerette orifices, each of said plates having therein manifold openings communicating with said slots, said plates and sheets having therein aligned apertunes defining a first passageway leading to the openings in the first plates, said plates and sheets also having therein aligned apertures defining a second passageway to the openings in the second plates, means for forcing a first spinning solution into 'said first passagewa y and means for fo rcing a second spinning solution into the second passageway.

2. A spinning system, comprising a sheet having therein aplurality of slots. extending inwandly from an edge; of a I saidtsheet, said slots defining spinnerette orifices a first manifold positionedon {one side of ,thetshe'et and having therein L-shapedmanifolds communicating with'the slots in the eheet a second nianifold' positioned-ontheother 7 side of the sheet and-heying lthe 'ein revelfsed "L-sheped openmg 1n communication witlhlsaid slots, means for iorcing a"firstt 's'pinning solution into the opening in g References Cited'by the Examiner 1 5 1 UNITED STATES PATENTS 2,031,387 2/36' Schwarz 18'8 2;386,173j "10/45 -;Ku1p et'al 18--8 2,428,046 9/47 Sisson et a1. 18'8 XR 1 MICHAEL V. BRINDISI, Primarj Examiner. WILLIAM J. STEPHENSON, Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2031387 *Nov 30, 1934Feb 18, 1936Schwarz ArthurNozzle
US2386173 *May 13, 1943Oct 2, 1945American Viscose CorpApparatus for the production of artificial filaments
US2428046 *Aug 3, 1943Sep 30, 1947Wayne A SissonArtificial filaments
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3308503 *Mar 17, 1964Mar 14, 1967Textile & Chemical Res CompanyMixing device for spinnerettes
US3484899 *Apr 6, 1967Dec 23, 1969Du PontSpinneret pack for flash extrusion
US3492692 *Feb 7, 1968Feb 3, 1970Japan Exlan Co LtdApparatus for spinning composite fibers
US3864068 *Feb 9, 1973Feb 4, 1975Gen Mills IncHot melt extrusion apparatus
US5017116 *Nov 27, 1989May 21, 1991Monsanto CompanySpinning pack for wet spinning bicomponent filaments
US5147197 *Dec 26, 1990Sep 15, 1992Basf CorporationSealing plate for a spinnerette assembly
US5162074 *Aug 7, 1989Nov 10, 1992Basf CorporationMethod of making plural component fibers
US5344297 *Jun 4, 1992Sep 6, 1994Basf CorporationApparatus for making profiled multi-component yarns
US5466410 *May 11, 1994Nov 14, 1995Basf CorporationProcess of making multiple mono-component fiber
US5551588 *Jun 6, 1995Sep 3, 1996Basf CorporationProfiled multi-component fiber flow plate method
US5562930 *Jun 6, 1995Oct 8, 1996Hills; William H.Distribution plate for spin pack assembly
US5607766 *Jun 6, 1995Mar 4, 1997American Filtrona CorporationPolyethylene terephthalate sheath/thermoplastic polymer core bicomponent fibers, method of making same and products formed therefrom
US5620641 *Jul 29, 1996Apr 15, 1997American Filtrona CorporationPolyethylene terephthalate sheath/thermoplastic polymer core bicomponent fibers, method of making same and products formed therefrom
US5633082 *Jul 29, 1996May 27, 1997American Filtrona CorporationPolyethylene terephthalate sheath/thermoplastic polymer core bicomponent fibers, method of making same and products formed therefrom
US5679379 *Jan 9, 1995Oct 21, 1997Fabbricante; Anthony S.Disposable extrusion apparatus with pressure balancing modular die units for the production of nonwoven webs
US5882573 *Sep 29, 1997Mar 16, 1999Illinois Tool Works Inc.Adhesive dispensing nozzles for producing partial spray patterns and method therefor
US5902540 *Oct 8, 1996May 11, 1999Illinois Tool Works Inc.Meltblowing method and apparatus
US5904298 *Apr 14, 1997May 18, 1999Illinois Tool Works Inc.Meltblowing method and system
US6026819 *Feb 18, 1998Feb 22, 2000Filtrona International LimitedTobacco smoke filter incorporating sheath-core bicomponent fibers and tobacco smoke product made therefrom
US6051180 *Aug 13, 1998Apr 18, 2000Illinois Tool Works Inc.Extruding nozzle for producing non-wovens and method therefor
US6074597 *Feb 20, 1999Jun 13, 2000Illinois Tool Works Inc.Meltblowing method and apparatus
US6174603Aug 25, 1999Jan 16, 2001Filtrona International LimitedSheath-core bicomponent fibers with blended ethylene-vinyl acetate polymer sheath, tobacco smoke filter products incorporating such fibers and tobacco smoke products made therefrom
US6197406Mar 16, 2000Mar 6, 2001Illinois Tool Works Inc.Omega spray pattern
US6200635Aug 31, 1998Mar 13, 2001Illinois Tool Works Inc.Omega spray pattern and method therefor
US6461430Mar 16, 2000Oct 8, 2002Illinois Tool Works Inc.Omega spray pattern and method therefor
US6602554Jan 14, 2000Aug 5, 2003Illinois Tool Works Inc.Liquid atomization method and system
US6680021Oct 20, 2000Jan 20, 2004Illinois Toolworks Inc.Meltblowing method and system
US6890167 *Mar 18, 2000May 10, 2005Illinois Tool Works Inc.Meltblowing apparatus
US7018031Dec 22, 2003Mar 28, 2006Filtrona Richmond, Inc.Porous substrate for ink delivery systems
US7290668Mar 1, 2004Nov 6, 2007Filtrona Richmond, Inc.Bicomponent fiber wick
US7291263Aug 19, 2004Nov 6, 2007Filtrona Richmond, Inc.Polymeric fiber rods for separation applications
US7798434Dec 13, 2006Sep 21, 2010Nordson CorporationMulti-plate nozzle and method for dispensing random pattern of adhesive filaments
US8074902Apr 14, 2008Dec 13, 2011Nordson CorporationNozzle and method for dispensing random pattern of adhesive filaments
US8226391 *Nov 7, 2008Jul 24, 2012Solarworld Innovations GmbhMicro-extrusion printhead nozzle with tapered cross-section
US8435600Nov 3, 2011May 7, 2013Nordson CorporationMethod for dispensing random pattern of adhesive filaments
US8557689Nov 22, 2010Oct 15, 2013Solarworld Innovations GmbhExtruded structure with equilibrium shape
US8985485Jul 12, 2012Mar 24, 2015Illinois Tool Works Inc.Quasi melt blow down system
EP0376911A2 *Dec 21, 1989Jul 4, 1990Monsanto CompanyImproved spinning pack for wet spinning bicomponent filaments
EP1166890A2 *May 17, 2001Jan 2, 2002Illinois Tool Works Inc.Split output adhesive nozzle assembly
WO1996039054A1Jun 4, 1996Dec 12, 1996American Filtrona CorpPolyethylene terephthalate sheath/thermoplastic polymer core bicomponent fibers, method of making same and products formed therefrom
WO2013052429A1 *Oct 2, 2012Apr 11, 2013Illinois Tool Works Inc.Quasi melt blow down system
Classifications
U.S. Classification425/131.5, 425/192.00R, 425/DIG.217
International ClassificationD01D5/32
Cooperative ClassificationD01D5/32, Y10S425/217
European ClassificationD01D5/32