US3492692A - Apparatus for spinning composite fibers - Google Patents

Apparatus for spinning composite fibers Download PDF

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US3492692A
US3492692A US3492692DA US3492692A US 3492692 A US3492692 A US 3492692A US 3492692D A US3492692D A US 3492692DA US 3492692 A US3492692 A US 3492692A
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Prior art keywords
spinning
plates
component
side
orifices
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Expired - Lifetime
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Keiichi Soda
Nobuyuki Kishimoto
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Japan Exlan Co Ltd
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Japan Exlan Co Ltd
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    • DTEXTILES; PAPER
    • D01NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D4/00Spinnerette packs; Cleaning thereof
    • D01D4/02Spinnerettes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C47/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C47/0009Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the articles
    • B29C47/003Articles having cross-sectional irregularities, i.e. being non-flat or having cylindrical cross-sections perpendicular to the extrusion direction
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C47/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C47/04Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor of multilayered or multi-component, e.g. co-extruded layers or components or multicoloured articles or coloured articles
    • B29C47/06Multilayered articles or multi-component articles
    • DTEXTILES; PAPER
    • D01NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/253Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • DTEXTILES; PAPER
    • D01NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/28Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30Conjugate filaments; Spinnerette packs therefor
    • D01D5/32Side-by-side structure; Spinnerette packs therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C47/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C47/0009Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the articles
    • B29C47/0014Filamentary-shaped articles, e.g. strands
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/26Composite fibers made of two or more materials

Description

' Feb. 3, 1970 KEIICHI Song ETAL 3 39 2 APPARATUS- FOR srmnme courosrm mar-ms v Filed Feb. 7, 196a V g l s Shepts-Sheet 1 Killer" son A uonuvulu msmuo'ro I nnnlm By U) Q W Allomfy'I Feb 3, 1970 KEIICHI soDA ET'AL 3,492,592

APPARATUS FOR SPINNING courosmn mamas Filed Feb. 7. 1968 3 Sheets-Sheet 2 I. b k. I Fill/11 7,1142

AND

KEHOHI SODA- NOBUYUKI K \SH IMDTO Invenlors Attorney:

Feb. 3, 1970 KEIICHI SODA ET L 3,492,692

APPARATUS FOR SPINNING COMPOSITE FIBERS 3 Sheets-Sheet 5 Filed Feb. 7. 1968 KEHCH! SODA A." NDBUYUKI msmmoro Inventors ByWlMll/M; I AM!) PM.

.4 am e ys United States Patent Ofifice 3,492,692 Patented Feb. 3, 1970 3,492,692 APPARATUS FOR SPINNING COMPOSITIQI IBERS Keiichi Soda and Nobuyuki Kishimoto, Saidar i, Japan, assignors to Japan Exlan Company Lumted, Osaka, Ja an p Filed Feb. 7, 1968, Ser. No. 703,642 Claims priority, application Japan, Feb. 2, 1967, 42/ 10,325 Int. Cl. Dtlld 3/00 U.S. Cl. 188 3 Claims ABSTRACT OF THE DISCLOSURE A composite fiber spinning apparatus for extruding two different spinning solutions through common orifices to form conjugated or composite fibers is made up essentially of a series of plates clamped together to form a laminated structure. The two end plates function as front and rear closure plates. Each of the intermediate plates disposed between the end plates is provided with a pair of spaced bores extending therethrough in mutual alignment and in alignment with one of the two feed supply bores in the front closure plate, for feeding the two diiferent spinning solutions. Each intermediate plate is also provided on one side thereof with a recess which is closed by the adjacent uninterrupted side of the adjacent plate. The recess of the first plate is in communication with one of the conduits formed by the two bores; the recess of the .second plate is in communication with the other of the said bores. Each recess is also in communication with a back-side recess formed on its plate, through a flow through portion provided in each plate for this purpose. Each backside recess leads to nozzles formed at the top of the respective plates.

The present invention relates to a composite fiber spinning apparatus for extruding two different spinning solutions through common orifices to form so-called conjugated or composite fibers, each comprising the different components laminated along the entire length of the fiber and arranged in an eccentric relationship over the crosssection of the fiber.

Generally, a composite fiber spinning apparatus is adapted to cause two different spinning solutions to laminarily flow together just in front of orifices and then to be extruded through the orifices concurrently. A conventional spinning apparatus of this type is constituted by a spinning solution introducing part for guiding two different solutions to the vicinity of each orifice separately so as not to allow the solutions to be mixed together and then causing them to flow together just in front of the orifices, and a spinnerette part formed with orifices in positions corresponding to the junctions of the flows. With the apparatus of such structure, unless the junction of flows of two spinning solutions at the spinning solution introducing part is exactly aligned with the position of each orifice of the spinning head, this will result in a difference in the proportions of the spinning solutions, and therefor a uniform composite fiber cannot be obtained.

As a result, there arise various problems in manufacture and operation since the apparatus becomes complicated as compared with the ordinary single component spinning apparatus; for example, a high degree of working precision is required to establish alignment between the disposition of the spinning solution introducing part (at the junction of flows) and the disposition of the orifices of the spinnerette and positioning procedure for aligning the spinning solution introducing part with the spinnerette at the time of use is required.

It is known that like the ordinary single component fiber, by providing the composite fiber with irregular crosssectional shape different from circle, such as, for example, rectangle and triangle, the composite fiber can be caused to possess special hand (touch) not obtainable with circular cross-sectional fiber. Irregular cross-sectional orifices, however, are extremely difiicult to work as they require special working technique as compared with circular orifices, and a spinnerette having thousands of or tens of thousands of such irregular orifices used for wet spinning system will involve an enormous cost, so that in practice such irregular orifice spinnerettes are rarely employed at present.

There have been made some proposals that plates are stacked one upon another to form a spinning solution introducing part and orifices. However, they have various difficulties in that the plates are difficult to manufacture and the shape of the orifices is limited.

Therefore, it is an object of this invention to provide a novel spinning head for spinning composite fibers which does not contain any parts requiring special manufacturing technique as mentioned above but is constituted by parts capable of being easily produced with the usual technique and which is simple in structure from a viewpoint of mechanism.

The invention will be described in more detail with reference to the drawings, wherein FIG. 1 is an exploded perspective view of the main portion of the apparatus embodying this invention; FIG. 2 is a back view of one of the component plates constituting of the apparatus of FIG. 1; FIG. 3 is a fragmentary enlarged perspective view of portions of component plates adjacent orifices; FIGS. 4, 5 and 6 are perspective views similar to FIG. 3, but showing other forms of orifices of the spinning apparatus; FIG. 7A, 7B, 7C and 7D are cross-sections of com posite fibers obtained by means of the orifices shown in FIGS. 3, 4, 5 and 6, respectively; FIG. 8 is a fragmental enlarged perspective view of portions adjacent orifices, showing an example in which orifices of various crosssections are formed by using a single spinning head according to the present invention; FIG. 9 shows the crosssections of composite fibers obtained by means of the spinning head shown in FIG. 8; and FIGS. 10A and 10B are fragmentary enlarged cross-sections of component plates showing embodiments of various shapes of backside recesses and partitions.

Referring to the drawings, particularly FIG. 1, the composite spinning head of the invention is constructed by stacking a number of component plates 1 and 1' alter nately, which are clamped together in parallel relationship and uniformly between shutter plates 10 and 11 by means of clamping bolts 9 in order to prevent liquid from leaking through clearances between the stacked component plates. The component plates 1 and 1' have cut-outs 2, 3 and 2, 3', respectively. Each component plate 1 has on its front side a front-side recess 4 leading to the cut-out 2, and similarly each component plate 1' has on the front side a front-side recess 4' leading to the cut-out 3. FIG. 2 is a view of such component plate 1 as seen from the backside thereof. As shown in FIG. 3, the component plates 1 and 1' have back-side recesses 6 and 6' on their back-side and grooves 8 and 8 leading to the outer periphery. The front side recesses 4, 4' and the back-side recesses 6, 6 are connected with each other at locally portions, and at said connecting portions there are formed flow-through portions 7, 7' passing through the component plates. When the component plates 1 and 1 are stacked and assembled, the cut-outs 2, 3 and 2', 3' define introduction passages for spinning solutions, the frontside recesses 4, 4' and back-side recesses 6, 6' define spinnmg solution branch fiow passages, and the intermediate portions serve as partitions 5 and 5'. Grooves 8 and '8 are engaged with plane surfaces of adjacent component plates or with such grooves formed at opposed positions, thereby forming orifices.

Spinning solutions are supplied by a spinning solution supply part 12, which supplies them at positions corresponding to the cut-outs 2, 2' and 3, 3. One spinning solution a is passed through the spinning solution introducing passage defined by the cut-outs 2, 2' of the component plates 1, 1', and through the spinning solution branch flow passages defined by the front-side recesses 4, to reach the flow-through portions 7, 7, and are divided into two streams entering the back-side recesses 6, 6'. Correspondingly, the other spinning solution b is passed through the spinning solution introducing passage defined by the cut-outs 3, 3' of the component plates, and through the spinning solution branch flow passages defined by the front-side recesses 4, to reach the flow-through portions, and are divided into two streams as in the case of the spinning solution a. Thus the spinning solutions a and b join together in overlapped or back to back relation when flowing through the flow-together passages de fined by the back-side recesses 6, 6', and are finally discharged through the orifices.

The cross-section of the orifices may be rectangular, circular, :\-shaped, and triangular shapes shown in FIGS. 3, 4, 5 and 6, respectively, or may be of any other shape by suitably selecting the shape and size of the grooves 8, 8' of the component plates 1, 1.

While the back-side recesses 6, 6' are shown as having sectional shapes out at right angles to the component plates as shown in FIGS. 3 to 6 and FIG. 7, they may be cut obliquely with respect to the component plates as shown in FIG. 10, or alternatively they may be of inverted Y-shape by obliquely cutting the partitions 5, 5' corresponding to the back-side recesses 6, 6, thereby to reduce the spinning back-pressure.

FIGS. 7A, B, C and D respectively show the cross-sectional shapes of the composite fibers spun by means of the orifices having shapes shown in FIGS. 3, 4, 5 and 6.

While the component plates may be formed of any desired materials, the use of synthetic resin having a low thermal conductivity, preferably less than 5 10 cal.- cm.- -sec.- 'deg. has advantages in that the low thermal conductivity thereof makes it unnecessary to use heat insulator and excludes the possibilities of causing irregularities in the temperature of the spinning solutions and of causing stagnation of the solutions, thereby assuring smoothness and uniformity of spinning operation. Further, if the composite plates are to be articles made of synthetic resin, the formation of only two metal molds allows massproduction and hence reduces the cost of manufacture greatly.

While the synthetic resins useful as the material of the component plates include polyamide resin, polycarbonate resin, polyether resin, heat-resistant polyvinyl chloride resin, phenol resin, epoxy resin, unsaturated polyester resin, etc., preferable ones are polycarbonate resin, polyether resin and epoxy resin, which are excellent in heat resistant, pressureresistant and chemical-resistant properties. Any of the many commercially available resin materials-e.g. hexan, Zytel42, Derlin, Epikote 1031, etc.- can be employed.

As mentioned above, the apparatus of the present invention is simple structure and easy to produce, Moreover, irregular orifices can be obtained as easily as circular orifices, and as the characteristics of the stack system, the alteration of the number of the orifices can be easily attained by simply changing the number of the component plates. Further, owing to the integral structure of the spinning head main part and spinnerette, all the needs of the working technique for aligning the junction of flows at the spinning solution introducing part of the orifices of the spinnerette, of positioning at the time of use, and of the provision of attachment means and seals, are eliminated.

Further, as shown in FIGS. 8 and 9, there are various features that when it is desired to produce composite fibers of various cross-sectional shapes and are as in various proportions of the products by using a single spinning head, this object can be attained by altering the combination of the component plates.

What we claim is:

1. An apparatus for spinning composite fibers, which comprises component plates (1) having cut-outs (2) and (3), front-side recesses (4) leading to said cut-outs (2), back-side recesses (6) communicating with said front-side recesses (4) locally at flow-through sections (7), and spinning grooves (8) leading from said back-side recesses to the outer periphery, and component plates (1') having cut-outs (2) and (3'), front-side recesses (4') leading to said cut-outs (3), back-side recesses (6) communicating with said front-side recesses locally at flow-through sections (7'), and spinning grooves (8) leading from said back-side recesses to the outer periphery, said component plates (1), (1') are stacked alternately so that p ssages defined by the front-side recesses (4) of the component plates (1) and the plane surfaces of the adjacent component plates (1) communicate at flow-through portions (7) and (7) with passages defined by the front-side recesses (4') of the component plates (1') and the plane surfaces of the component plates (1), and orifices are defined by the spinning grooves (8) and (8') leading to passages defined by the back-side recesses (6) and (6') of the component plates (1) and (1) and the adjacent component plates (1) and (1').

2. An apparatus as claimed in claim 1 wherein each component plate is made of a synthetic resin having a thermal conductivity less than 5 X 10- cal.-cm. -sec.- deg- 3. An apparatus as claimed in claim 2 wherein the synthetic resin is selected from polycarbonate, polyether, polyamide, phenolic resins, epoxy resins, thermally stable polyvinyl chloride and unsaturated polyester resins.

References Cited UNITED STATES PATENTS 2,031,387 2/1936 Schwarz. 3,176,345 4/ 1965 Powell. 3,192,562 7 1965 Powell. 3,192,563 7/ 1965 Crompton. 3,204,290 9/1965 Crompton. 3,403,422 10/ 1968 Nakagawa et al.

I SPENCER OVERHOLSER, Primary Examiner M. O. SUTTON, Assistant Examiner

US3492692A 1967-02-07 1968-02-07 Apparatus for spinning composite fibers Expired - Lifetime US3492692A (en)

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Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3676540A (en) * 1971-03-15 1972-07-11 American Cyanamid Co Wet-spinning shaped fibers
US3760053A (en) * 1971-12-06 1973-09-18 American Cyanamid Co Wet-spinning process for {37 dog-bone{38 {0 shaped acrylonitrile polymer fibers
US3807917A (en) * 1971-05-04 1974-04-30 Exlan Co Ltd Apparatus for spinning sheath-core type composite fibers
US3852013A (en) * 1972-09-19 1974-12-03 H Upmeier Extruder for plastics material, particularly thermoplastic or non-cross-linked elastomeric materials
US3864068A (en) * 1973-02-09 1975-02-04 Gen Mills Inc Hot melt extrusion apparatus
US3923444A (en) * 1974-05-03 1975-12-02 Ford Motor Co Extrusion die
US4002795A (en) * 1974-03-25 1977-01-11 Rhone-Poulenc-Textile Crimped yarns and method for making them
EP0046035A1 (en) * 1980-07-29 1982-02-17 Teijin Limited Composite fiber assembly and process and apparatus for production thereof
US4457685A (en) * 1982-01-04 1984-07-03 Mobil Oil Corporation Extrusion die for shaped extrudate
US4521364A (en) * 1979-03-27 1985-06-04 Teijin Limited Filament-like fibers and bundles thereof, and novel process and apparatus for production thereof
US4918017A (en) * 1989-02-03 1990-04-17 Bridgestone/Firestone, Inc. Screen assembly for screening elastomeric material
US5017116A (en) * 1988-12-29 1991-05-21 Monsanto Company Spinning pack for wet spinning bicomponent filaments
US5162074A (en) * 1987-10-02 1992-11-10 Basf Corporation Method of making plural component fibers
US5234650A (en) * 1992-03-30 1993-08-10 Basf Corporation Method for spinning multiple colored yarn
US5551588A (en) * 1987-10-02 1996-09-03 Basf Corporation Profiled multi-component fiber flow plate method
US5628736A (en) * 1994-04-29 1997-05-13 The Procter & Gamble Company Resilient fluid transporting network for use in absorbent articles
US5679379A (en) * 1995-01-09 1997-10-21 Fabbricante; Anthony S. Disposable extrusion apparatus with pressure balancing modular die units for the production of nonwoven webs
WO1998027253A1 (en) * 1996-12-18 1998-06-25 Barmag Ag Spin-die manifold
EP0893517A2 (en) * 1997-07-23 1999-01-27 Anthony Fabbricante Micro-denier nonwoven materials made using modular die units
US5882573A (en) * 1997-09-29 1999-03-16 Illinois Tool Works Inc. Adhesive dispensing nozzles for producing partial spray patterns and method therefor
US5902540A (en) * 1996-10-08 1999-05-11 Illinois Tool Works Inc. Meltblowing method and apparatus
US5904298A (en) * 1996-10-08 1999-05-18 Illinois Tool Works Inc. Meltblowing method and system
US6051180A (en) * 1998-08-13 2000-04-18 Illinois Tool Works Inc. Extruding nozzle for producing non-wovens and method therefor
US6197406B1 (en) 1998-08-31 2001-03-06 Illinois Tool Works Inc. Omega spray pattern
US6375099B1 (en) * 2000-06-21 2002-04-23 Illinois Tool Works Inc. Split output adhesive nozzle assembly
US6602554B1 (en) 2000-01-14 2003-08-05 Illinois Tool Works Inc. Liquid atomization method and system
US6680021B1 (en) 1996-07-16 2004-01-20 Illinois Toolworks Inc. Meltblowing method and system
US20080145530A1 (en) * 2006-12-13 2008-06-19 Nordson Corporation Multi-plate nozzle and method for dispensing random pattern of adhesive filaments
US20090057944A1 (en) * 2006-11-01 2009-03-05 Palo Alto Research Center Incorporated Micro-Extrusion Printhead Nozzle With Tapered Cross-Section
US20110062622A1 (en) * 2006-11-01 2011-03-17 Palo Alto Research Center Incorporated Extruded Structure With Equilibrium Shape
US8074902B2 (en) 2008-04-14 2011-12-13 Nordson Corporation Nozzle and method for dispensing random pattern of adhesive filaments
WO2014015843A1 (en) * 2012-07-27 2014-01-30 Contipro Biotech S.R.O. Spinning nozzle for producing nanofibrous and microfibrous materials composed of fibres having a coaxial structure
US20160263591A1 (en) * 2015-03-10 2016-09-15 Bum Je WOO Purge gas injection plate and manufacturing method thereof

Citations (6)

* Cited by examiner, † Cited by third party
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US2031387A (en) * 1934-08-22 1936-02-18 Schwarz Arthur Nozzle
US3176345A (en) * 1962-06-25 1965-04-06 Monsanto Co Spinnerette
US3192563A (en) * 1962-06-25 1965-07-06 Monsanto Co Laminated spinneret
US3192562A (en) * 1962-06-25 1965-07-06 Monsanto Co Spinnerette
US3204290A (en) * 1962-12-27 1965-09-07 Monsanto Co Laminated spinneret
US3403422A (en) * 1964-07-02 1968-10-01 Japan Exlan Co Ltd Apparatus for spinning multicomponent fibers

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US2031387A (en) * 1934-08-22 1936-02-18 Schwarz Arthur Nozzle
US3176345A (en) * 1962-06-25 1965-04-06 Monsanto Co Spinnerette
US3192563A (en) * 1962-06-25 1965-07-06 Monsanto Co Laminated spinneret
US3192562A (en) * 1962-06-25 1965-07-06 Monsanto Co Spinnerette
US3204290A (en) * 1962-12-27 1965-09-07 Monsanto Co Laminated spinneret
US3403422A (en) * 1964-07-02 1968-10-01 Japan Exlan Co Ltd Apparatus for spinning multicomponent fibers

Cited By (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3676540A (en) * 1971-03-15 1972-07-11 American Cyanamid Co Wet-spinning shaped fibers
US3807917A (en) * 1971-05-04 1974-04-30 Exlan Co Ltd Apparatus for spinning sheath-core type composite fibers
US3760053A (en) * 1971-12-06 1973-09-18 American Cyanamid Co Wet-spinning process for {37 dog-bone{38 {0 shaped acrylonitrile polymer fibers
US3852013A (en) * 1972-09-19 1974-12-03 H Upmeier Extruder for plastics material, particularly thermoplastic or non-cross-linked elastomeric materials
US3864068A (en) * 1973-02-09 1975-02-04 Gen Mills Inc Hot melt extrusion apparatus
US4002795A (en) * 1974-03-25 1977-01-11 Rhone-Poulenc-Textile Crimped yarns and method for making them
US3923444A (en) * 1974-05-03 1975-12-02 Ford Motor Co Extrusion die
US4521364A (en) * 1979-03-27 1985-06-04 Teijin Limited Filament-like fibers and bundles thereof, and novel process and apparatus for production thereof
EP0046035A1 (en) * 1980-07-29 1982-02-17 Teijin Limited Composite fiber assembly and process and apparatus for production thereof
US4457685A (en) * 1982-01-04 1984-07-03 Mobil Oil Corporation Extrusion die for shaped extrudate
US5344297A (en) * 1987-10-02 1994-09-06 Basf Corporation Apparatus for making profiled multi-component yarns
US5551588A (en) * 1987-10-02 1996-09-03 Basf Corporation Profiled multi-component fiber flow plate method
US5562930A (en) * 1987-10-02 1996-10-08 Hills; William H. Distribution plate for spin pack assembly
US5466410A (en) * 1987-10-02 1995-11-14 Basf Corporation Process of making multiple mono-component fiber
US5162074A (en) * 1987-10-02 1992-11-10 Basf Corporation Method of making plural component fibers
US5017116A (en) * 1988-12-29 1991-05-21 Monsanto Company Spinning pack for wet spinning bicomponent filaments
US4918017A (en) * 1989-02-03 1990-04-17 Bridgestone/Firestone, Inc. Screen assembly for screening elastomeric material
US5234650A (en) * 1992-03-30 1993-08-10 Basf Corporation Method for spinning multiple colored yarn
USRE35108E (en) * 1992-03-30 1995-12-05 Basf Corporation Method for spinning multiple colored yarn
US5628736A (en) * 1994-04-29 1997-05-13 The Procter & Gamble Company Resilient fluid transporting network for use in absorbent articles
US5679379A (en) * 1995-01-09 1997-10-21 Fabbricante; Anthony S. Disposable extrusion apparatus with pressure balancing modular die units for the production of nonwoven webs
US6680021B1 (en) 1996-07-16 2004-01-20 Illinois Toolworks Inc. Meltblowing method and system
US6890167B1 (en) 1996-10-08 2005-05-10 Illinois Tool Works Inc. Meltblowing apparatus
US6074597A (en) * 1996-10-08 2000-06-13 Illinois Tool Works Inc. Meltblowing method and apparatus
US5904298A (en) * 1996-10-08 1999-05-18 Illinois Tool Works Inc. Meltblowing method and system
US5902540A (en) * 1996-10-08 1999-05-11 Illinois Tool Works Inc. Meltblowing method and apparatus
US6261080B1 (en) 1996-12-18 2001-07-17 Barmag Ag Spin beam for spinning synthetic filament yarns
WO1998027253A1 (en) * 1996-12-18 1998-06-25 Barmag Ag Spin-die manifold
WO1999004950A1 (en) * 1997-07-23 1999-02-04 Gaunt, Robert, John Novel micro-denier nonwoven materials made using modular die units
EP0893517A2 (en) * 1997-07-23 1999-01-27 Anthony Fabbricante Micro-denier nonwoven materials made using modular die units
EP0893517A3 (en) * 1997-07-23 1999-07-21 Anthony Fabbricante Micro-denier nonwoven materials made using modular die units
US5882573A (en) * 1997-09-29 1999-03-16 Illinois Tool Works Inc. Adhesive dispensing nozzles for producing partial spray patterns and method therefor
US6051180A (en) * 1998-08-13 2000-04-18 Illinois Tool Works Inc. Extruding nozzle for producing non-wovens and method therefor
US6200635B1 (en) 1998-08-31 2001-03-13 Illinois Tool Works Inc. Omega spray pattern and method therefor
US6461430B1 (en) 1998-08-31 2002-10-08 Illinois Tool Works Inc. Omega spray pattern and method therefor
US6197406B1 (en) 1998-08-31 2001-03-06 Illinois Tool Works Inc. Omega spray pattern
US6602554B1 (en) 2000-01-14 2003-08-05 Illinois Tool Works Inc. Liquid atomization method and system
US6375099B1 (en) * 2000-06-21 2002-04-23 Illinois Tool Works Inc. Split output adhesive nozzle assembly
US8557689B2 (en) 2006-11-01 2013-10-15 Solarworld Innovations Gmbh Extruded structure with equilibrium shape
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Also Published As

Publication number Publication date Type
NL6801610A (en) 1968-08-08 application
GB1181483A (en) 1970-02-18 application
DE1710623A1 (en) 1972-04-20 application
ES350209A1 (en) 1969-04-16 application

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