US3230972A - Apparatus for spinning filaments - Google Patents

Apparatus for spinning filaments Download PDF

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Publication number
US3230972A
US3230972A US204745A US20474562A US3230972A US 3230972 A US3230972 A US 3230972A US 204745 A US204745 A US 204745A US 20474562 A US20474562 A US 20474562A US 3230972 A US3230972 A US 3230972A
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Prior art keywords
streams
spinning
opening
filaments
grooves
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US204745A
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Jr Walter H Davis
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Monsanto Co
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Monsanto Co
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Priority to NL125329D priority Critical patent/NL125329C/xx
Priority to NL294479D priority patent/NL294479A/xx
Priority to BE634073D priority patent/BE634073A/xx
Priority to US204745A priority patent/US3230972A/en
Application filed by Monsanto Co filed Critical Monsanto Co
Priority to DK299663AA priority patent/DK104751C/en
Priority to GB24994/63A priority patent/GB986246A/en
Priority to FR939203A priority patent/FR1371248A/en
Priority to CH784463A priority patent/CH396295A/en
Priority to DE19631435554 priority patent/DE1435554A1/en
Application granted granted Critical
Publication of US3230972A publication Critical patent/US3230972A/en
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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
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/06—Feeding liquid to the spinning head
    • D01D1/065—Addition and mixing of substances to the spinning solution or to the melt; Homogenising
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
    • B01F25/3141—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit with additional mixing means other than injector mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
    • B01F25/3142—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit the conduit having a plurality of openings in the axial direction or in the circumferential direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
    • B01F25/3142—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit the conduit having a plurality of openings in the axial direction or in the circumferential direction
    • B01F25/31423—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit the conduit having a plurality of openings in the axial direction or in the circumferential direction with a plurality of perforations in the circumferential direction only and covering the whole circumference
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
    • B01F25/4337—Mixers with a diverging-converging cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/44—Mixers in which the components are pressed through slits
    • B01F25/441—Mixers in which the components are pressed through slits characterised by the configuration of the surfaces forming the slits
    • B01F25/4413—Mixers in which the components are pressed through slits characterised by the configuration of the surfaces forming the slits the slits being formed between opposed conical or cylindrical surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/44—Mixers in which the components are pressed through slits
    • B01F25/441—Mixers in which the components are pressed through slits characterised by the configuration of the surfaces forming the slits
    • B01F25/4416—Mixers in which the components are pressed through slits characterised by the configuration of the surfaces forming the slits the opposed surfaces being provided with grooves
    • B01F25/44161—Axial grooves formed on opposed surfaces, e.g. on cylinders or cones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/712—Feed mechanisms for feeding fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/71805—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings
    • 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
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/26—Composite fibers made of two or more materials
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/049—Spinnerette mixer
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/217—Spinnerette forming conjugate, composite or hollow filaments
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87265—Dividing into parallel flow paths with recombining
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87571—Multiple inlet with single outlet
    • Y10T137/87652—With means to promote mixing or combining of plural fluids

Definitions

  • conjugate spinnerettes are expensive and difficult to manufacture. It is also known that conventional conjugate spinnerettes are, because of construction, limited to a fairly low number of spinning orifices. With this in mind, one of the objects of this invention is to provide novel and improved apparatus for combining two streams of fluid.
  • Another object of this invention is to provide a device for combining a plurality of spinning solutions for producing conjugate filaments from a conventional spinnerette.
  • a further object of this invention is to provide a device for combining two polymer streams wherein a large stream of a first polymer is broken down into smaller streams and streams of a second polymer are combined with the small streams of the first polymer.
  • Still another object of this invention is to provide a device for injecting small streams of one spinning solution into small streams of another spinning solution for conjugate spinning from a conventional spinnerette.
  • One embodiment of the present invention contemplates a device for combining two spinning solutions wherein an enlarged insert positioned in a large stream ⁇ of a first spinning solution is provided with a plurality of longitudinal grooves through which the first solution flows, thereby separating the large stream into a plurality of smaller streams.
  • a manifold extends around the insert and is provided with a plurality of orifices aligned with the grooves in the insert for feeding small streams of a second spinning solution into the small streams of the first.
  • the combined small streams are brought together to form a large stream which is fed to a conventional spinnerette. Because of the high viscosity and low flow rate of the spinning solutions the combined streams flow in a laminar manner to the spinnerette.
  • FIGURE l is a cross sectional view of one embodiment of the invention showing the general arrangement of the various elements of the device
  • FIGURE 2 is .a cross sectional view taken on line 2-2 of FIGURE 1 showing the construction of a manifold which injects streams of one spinning solution into streams of another,
  • FIGURE 3 is a perspective view of the insert which separates a large stream of spinning solution into a plu rality of smaller streams
  • FIGURE 4 is an enlarged cross sectional View taken on line 4 4 of FIGURE 1 showing the combined streams of spinning solution.
  • a housing 11 having an opening or chamber 12 extending therethrough is shown connected by a pipe 13 to a first source 14 of spinning solution, the pipe 13 communicating with the chamber 12.
  • the opening or chamber 12 has a cylinice drical central portion and frustoconical end portions for receiving an insert 18 of similar configuration.
  • the insert 18, which has a cylindrical central portion and conical end portions, is provided with a plurality of longitudinal flanges 19 which extend from one end of the insert to the other, the flanges 19 defining grooves 20 through which the spinning solution from the source 14 flows.
  • the flanges 19 separate the large stream of spinning solution flowing from the pipe 13 into a plurality of much smaller lstreams, these smaller streams flowing through the grooves 20 defined by the flanges 19.
  • a second spinning solution is fed from a source 24 through an inlet port 25 to a circular manifold 28 mounted in the housing 11 and encircling the cylindrical central portion of the insert 18.
  • the manifold is provided with a plurality of orifices 29, each of which is aligned with one of the grooves 2l) in the insert 18 for injecting thereint-o streams of spinning solution from the source 24.
  • FIGURE 4 shows the cross 'sectional configurations of the combined streams, the area 30 being spinning solution from the first source 14 and the area lvbeing spinning solution from the source 24.
  • the line 32 is the line of demarcation between the two spinning solutions.
  • the combined small streams flowing through the grooves 20 are combined into a larger stream at the right end (FIGURE l) of the insert 18 and are fed through a pipe 35 to a spinnerette 36 of a well known type having a large number of spinning orifices (not shown). While the areas 30 and 3l and the line 32 may change configurations slightly during the transition from the chamber 12 to the pipe 35, there will be substantially no mixing of the two spinning solutions.
  • the combined streams reach the spinnerette 36 and pass through the orifices therein to form filaments.
  • the area 30 passes through the spinnerette orifices to form filaments of one composition, while the area 31 passes through the spinnerette orifices to form filaments of another composition.
  • Conjugate filaments will be formed from the spinnerette orifices intersected by the line 32, since some of each spinning solution will be flowing through each of these orifices.
  • the bundle of filaments found at the spinnerette will have three types of filaments; filaments of the first spinning composition, filaments of the second spinning composition, and conjugate filaments of both compositions. If the two spinning compositions have different shrinkage characteristics, a subsequent annealing operation will crimp or curl the conjugate filaments. When the conjugate filaments take on a curled or wavy configuration the remaining filaments in the bundle will be deflected from their normal linear configurations by the curls in the conjugate filaments. These crimps or curls in the conjugate filaments also serve to hold the remaining filaments together in the bundle. Thus, a relatively small number of conjugate filaments, when annealed, serve to maintain the integrity and appearance of the bundle of filaments. This is extremely important, since tow which splits or separates usually causes difiiculties in subsequent processing.
  • the device of the present invention can be used in conjugate spinning operations, it can also be used to inject a pigment into a spinning solution.
  • the pigment is injected into the spinning solution through the orifices 29 in the manifold 28 and the combined streams are fed to a mixer (not shown) which disperses the pigment in the spinning solution.
  • a mixer not shown
  • the advantage of 3 this device over conventional pigment injectors is that a number of small streams of pigment, rather than one large stream, are injected into the spinning composition. This insures a better dispersion in the subsequent mixing operation.
  • a device for combining a plurality of iiuid streams comprising a housing having an opening therethrough for the passage of a first fluid, an element mounted in said opening in contact with the wall of said opening and having in the surface there-of a plurality of grooves through which said first fluid ows, and a manifold mounted in the housing and extending around the element, said manifold having therein a plurality of orifices aligned with said grooves for discharging a second fluid thereinto.
  • A. device for combining -a plurality of fiuid streams comprising a housing having therein ,an elongated opening for the flow of a first fluid, an elongated element mounted in the opening and having thereon a plurality of longitudinal flanges dening grooves through which the 4first fluid flows, said longitudinal iianges extending to and being in contact with the wall of the opening, and a manifold mounted on the housing and encircling the element, said manifold having therein a plurality of orifice's aligned with said grooves for discharging streams of a second fiuid thereinto.
  • a device for combining a plurality of fluid streams comprising a housing having therein an opening f-or the passage of a first fluid, an element mounted in said opening in Contact with the Wall of said opening and having therein a plurality of openings through which said first fluid flows, a first fiui-d supply connected to said opening, a manifold mounted on the housing and having therein a plurality of passageways communicating with the openings in the element, and a second fluid supply connected to the manifold.
  • a device for combining a plurality of fluid streams comprising a housing having therein an elongated opening for the passage of a first fluid', an element mounted in said opening, said element having a cylindrical central portion and conical ends,y said element also having thereon ⁇ a plurality of longitudinal flanges defining grooves through which said first fiuid flows, said flanges extending to and being in contact with the Wall of the opening, and a circular manifold mounted on the housing iu a positionV encircling the cylindrical portion of the element, lsaid manifold having therein -a plurality of orifices communicating with the grooves in the element for discharging streams -of a second iiuid into said grooves.
  • a device for combining a plurality of iiuid streams comprising a housing having an opening therein for the passage of a first fluid, said opening having a cylindrical central portion and tapered end portions, an element mounted in said opening and having thereon a plurality of longitudinal flanges extending to Walls formed by said openings, :said fianges defining grooves through which said first iiuid ows, and a circular manifold mounted around the cylindrical portion of said opening and having therein a plurality of orifices communicating with the grooves in the element for discharging streams of a second iiuid into said grooves.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Description

Jan. 25, 1966 W. H. DAVIS, JR
Filed June 25, 1962 INVENTOR WALTER H. DAVIS, Jr.
United States Patent O 3,230,972 APPARATUS FR SPINNING FILAMENTS Walter H. Davis, Jr., Decatur, Ala., assiguor to Monsanto Company, a corporation of Delaware Filed .lune 25, 1962, Ser. No. 204,745 Claims. (Cl. 137-604) This invention relates to apparatus for spinning filaments and more particularly to apparatus for combining two spinning solutions to obtain conjugate laments from conventional spinnerettes.
It is Well lrnown that conjugate spinnerettes are expensive and difficult to manufacture. It is also known that conventional conjugate spinnerettes are, because of construction, limited to a fairly low number of spinning orifices. With this in mind, one of the objects of this invention is to provide novel and improved apparatus for combining two streams of fluid.
Another object of this invention is to provide a device for combining a plurality of spinning solutions for producing conjugate filaments from a conventional spinnerette.
A further object of this invention is to provide a device for combining two polymer streams wherein a large stream of a first polymer is broken down into smaller streams and streams of a second polymer are combined with the small streams of the first polymer.
Still another object of this invention is to provide a device for injecting small streams of one spinning solution into small streams of another spinning solution for conjugate spinning from a conventional spinnerette.
One embodiment of the present invention contemplates a device for combining two spinning solutions wherein an enlarged insert positioned in a large stream `of a first spinning solution is provided with a plurality of longitudinal grooves through which the first solution flows, thereby separating the large stream into a plurality of smaller streams. A manifold extends around the insert and is provided with a plurality of orifices aligned with the grooves in the insert for feeding small streams of a second spinning solution into the small streams of the first. The combined small streams are brought together to form a large stream which is fed to a conventional spinnerette. Because of the high viscosity and low flow rate of the spinning solutions the combined streams flow in a laminar manner to the spinnerette. Some of the filaments formed by the spinnerette are of one composition, others are of the other composition and the remainder are conjugate.
Other objects and advantages of the present invention will become apparent when the following detailed description is read in conjunction with the appended drawing, in which FIGURE l is a cross sectional view of one embodiment of the invention showing the general arrangement of the various elements of the device,
FIGURE 2 is .a cross sectional view taken on line 2-2 of FIGURE 1 showing the construction of a manifold which injects streams of one spinning solution into streams of another,
FIGURE 3 is a perspective view of the insert which separates a large stream of spinning solution into a plu rality of smaller streams, and
FIGURE 4 is an enlarged cross sectional View taken on line 4 4 of FIGURE 1 showing the combined streams of spinning solution.
Referring now in detail to the drawing, a housing 11 having an opening or chamber 12 extending therethrough is shown connected by a pipe 13 to a first source 14 of spinning solution, the pipe 13 communicating with the chamber 12. The opening or chamber 12 has a cylinice drical central portion and frustoconical end portions for receiving an insert 18 of similar configuration.
The insert 18, which has a cylindrical central portion and conical end portions, is provided with a plurality of longitudinal flanges 19 which extend from one end of the insert to the other, the flanges 19 defining grooves 20 through which the spinning solution from the source 14 flows. The flanges 19 separate the large stream of spinning solution flowing from the pipe 13 into a plurality of much smaller lstreams, these smaller streams flowing through the grooves 20 defined by the flanges 19.
A second spinning solution is fed from a source 24 through an inlet port 25 to a circular manifold 28 mounted in the housing 11 and encircling the cylindrical central portion of the insert 18. The manifold is provided with a plurality of orifices 29, each of which is aligned with one of the grooves 2l) in the insert 18 for injecting thereint-o streams of spinning solution from the source 24.
Because of the very high viscosities and the very low rate of flow of the spinning solutions, the fiow of the v combined streams is laminar. In other words, the streams join each other an-d flow together but do not mix. FIGURE 4 shows the cross 'sectional configurations of the combined streams, the area 30 being spinning solution from the first source 14 and the area lvbeing spinning solution from the source 24. The line 32 is the line of demarcation between the two spinning solutions.
The combined small streams flowing through the grooves 20 are combined into a larger stream at the right end (FIGURE l) of the insert 18 and are fed through a pipe 35 to a spinnerette 36 of a well known type having a large number of spinning orifices (not shown). While the areas 30 and 3l and the line 32 may change configurations slightly during the transition from the chamber 12 to the pipe 35, there will be substantially no mixing of the two spinning solutions.
The combined streams reach the spinnerette 36 and pass through the orifices therein to form filaments. The area 30 passes through the spinnerette orifices to form filaments of one composition, while the area 31 passes through the spinnerette orifices to form filaments of another composition. Conjugate filaments will be formed from the spinnerette orifices intersected by the line 32, since some of each spinning solution will be flowing through each of these orifices.
Thus, the bundle of filaments found at the spinnerette will have three types of filaments; filaments of the first spinning composition, filaments of the second spinning composition, and conjugate filaments of both compositions. If the two spinning compositions have different shrinkage characteristics, a subsequent annealing operation will crimp or curl the conjugate filaments. When the conjugate filaments take on a curled or wavy configuration the remaining filaments in the bundle will be deflected from their normal linear configurations by the curls in the conjugate filaments. These crimps or curls in the conjugate filaments also serve to hold the remaining filaments together in the bundle. Thus, a relatively small number of conjugate filaments, when annealed, serve to maintain the integrity and appearance of the bundle of filaments. This is extremely important, since tow which splits or separates usually causes difiiculties in subsequent processing.
While the device of the present invention can be used in conjugate spinning operations, it can also be used to inject a pigment into a spinning solution. The pigment is injected into the spinning solution through the orifices 29 in the manifold 28 and the combined streams are fed to a mixer (not shown) which disperses the pigment in the spinning solution. The advantage of 3 this device over conventional pigment injectors is that a number of small streams of pigment, rather than one large stream, are injected into the spinning composition. This insures a better dispersion in the subsequent mixing operation.
It is to be understood that the embodiment disclosed herein is merely illustrative land that this embodiment can be altered or amended and that numerous other embodiments can be contemplated Without departing from the spirit and scope of the invention.
What is claimed is:
1. A device for combining a plurality of iiuid streams, comprising a housing having an opening therethrough for the passage of a first fluid, an element mounted in said opening in contact with the wall of said opening and having in the surface there-of a plurality of grooves through which said first fluid ows, and a manifold mounted in the housing and extending around the element, said manifold having therein a plurality of orifices aligned with said grooves for discharging a second fluid thereinto.
2. A. device for combining -a plurality of fiuid streams, comprising a housing having therein ,an elongated opening for the flow of a first fluid, an elongated element mounted in the opening and having thereon a plurality of longitudinal flanges dening grooves through which the 4first fluid flows, said longitudinal iianges extending to and being in contact with the wall of the opening, and a manifold mounted on the housing and encircling the element, said manifold having therein a plurality of orifice's aligned with said grooves for discharging streams of a second fiuid thereinto.
3. A device for combining a plurality of fluid streams, comprising a housing having therein an opening f-or the passage of a first fluid, an element mounted in said opening in Contact with the Wall of said opening and having therein a plurality of openings through which said first fluid flows, a first fiui-d supply connected to said opening, a manifold mounted on the housing and having therein a plurality of passageways communicating with the openings in the element, and a second fluid supply connected to the manifold.
4. A device for combining a plurality of fluid streams, comprising a housing having therein an elongated opening for the passage of a first fluid', an element mounted in said opening, said element having a cylindrical central portion and conical ends,y said element also having thereon `a plurality of longitudinal flanges defining grooves through which said first fiuid flows, said flanges extending to and being in contact with the Wall of the opening, and a circular manifold mounted on the housing iu a positionV encircling the cylindrical portion of the element, lsaid manifold having therein -a plurality of orifices communicating with the grooves in the element for discharging streams -of a second iiuid into said grooves.
5. A device for combining a plurality of iiuid streams, comprising a housing having an opening therein for the passage of a first fluid, said opening having a cylindrical central portion and tapered end portions, an element mounted in said opening and having thereon a plurality of longitudinal flanges extending to Walls formed by said openings, :said fianges defining grooves through which said first iiuid ows, and a circular manifold mounted around the cylindrical portion of said opening and having therein a plurality of orifices communicating with the grooves in the element for discharging streams of a second iiuid into said grooves.
References Cited by the Examiner UNITED STATES PATENTS Kunz 239-502 X ISADOR WEIL, Primary Examiner. WILLIAM I. ,STEPI-IENSON, Examiner.

Claims (1)

1. A DEVICE FOR COMBINING A PLURALITY OF FLUID STREAMS, COMPRISING A HOUSING HAVING AN OPENING THERETHROUGH FOR THE PASSAGE OF A FIRST FLUID, AN ELEMENT MOUNTED IN SAID OPENING IN CONTACT WITH THE WALL OF SAID OPENING AND HAVING IN THE SURFACE THEREOF A PLURALITY OF GROOVES THROUGH WHICH SAID FIRST FLUID FLOWS, AND A MANIFOLD MOUNTED IN THE HOUSING AND EXTENDING AROUND THE ELEMENT, SAID MANIFOLD HAVING THEREIN A PLURALITY OF ORIFICES ALIGNED WITH SAID GROOVES FOR DISCHARGING A SECOND FLUID THEREINTO.
US204745A 1962-06-25 1962-06-25 Apparatus for spinning filaments Expired - Lifetime US3230972A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
NL125329D NL125329C (en) 1962-06-25
NL294479D NL294479A (en) 1962-06-25
BE634073D BE634073A (en) 1962-06-25
US204745A US3230972A (en) 1962-06-25 1962-06-25 Apparatus for spinning filaments
DK299663AA DK104751C (en) 1962-06-25 1963-06-24 Spinner.
GB24994/63A GB986246A (en) 1962-06-25 1963-06-24 A device for combining a plurality of fluid streams, particularly streams of spinning compositions in a spinning apparatus
FR939203A FR1371248A (en) 1962-06-25 1963-06-25 Device for spinning filaments
CH784463A CH396295A (en) 1962-06-25 1963-06-25 Device for combining several streams of materials
DE19631435554 DE1435554A1 (en) 1962-06-25 1963-06-25 Device for combining several means of flow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US204745A US3230972A (en) 1962-06-25 1962-06-25 Apparatus for spinning filaments

Publications (1)

Publication Number Publication Date
US3230972A true US3230972A (en) 1966-01-25

Family

ID=22759256

Family Applications (1)

Application Number Title Priority Date Filing Date
US204745A Expired - Lifetime US3230972A (en) 1962-06-25 1962-06-25 Apparatus for spinning filaments

Country Status (7)

Country Link
US (1) US3230972A (en)
BE (1) BE634073A (en)
CH (1) CH396295A (en)
DE (1) DE1435554A1 (en)
DK (1) DK104751C (en)
GB (1) GB986246A (en)
NL (2) NL294479A (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3371139A (en) * 1964-12-22 1968-02-27 Monsanto Co Process and apparatus for producing self-texturing fibers
US3406427A (en) * 1965-11-04 1968-10-22 Japan Exlan Co Ltd Apparatus for spinning composite fibers
US3436448A (en) * 1966-02-03 1969-04-01 American Cyanamid Co Method and apparatus for spinning uniform fibers
US3453688A (en) * 1967-02-28 1969-07-08 Monsanto Co Filament extrusion apparatus
US3554228A (en) * 1968-06-28 1971-01-12 Wellman Lord Inc Fluid mixing apparatus and method
US4013217A (en) * 1975-10-31 1977-03-22 Westinghouse Electric Corporation Double induction air conditioning with fluidic control
US4027858A (en) * 1976-06-29 1977-06-07 The Dow Chemical Company Apparatus for mixing
US4148340A (en) * 1970-08-03 1979-04-10 Process Systems, Inc. Digital fluid flow control system
US4422769A (en) * 1981-03-16 1983-12-27 Metaalwarenfabriek Venlo B.V. Mixing apparatus for two flowing liquids
US4603707A (en) * 1983-08-02 1986-08-05 Motorola, Inc. Purge block for gas systems
US5059375A (en) * 1989-11-13 1991-10-22 Minnesota Mining & Manufacturing Company Apparatus and method for producing kink resistant tubing
EP0468321A1 (en) * 1990-07-27 1992-01-29 Elastogran GmbH Apparatus for the production of multi component resins, especially polyurethane between moving hands
US5230253A (en) * 1990-02-22 1993-07-27 Beckman Instruments, Inc. Fluid mixing device
US6491064B2 (en) * 2000-12-06 2002-12-10 Juergen Kampe Apparatus for charging a liquid medium with a gas
US20090211657A1 (en) * 2004-12-08 2009-08-27 Danfoss A/S Bubble-tolerant micro-mixers
US20150157993A1 (en) * 2013-12-05 2015-06-11 West Virginia University Extensional Flow Mixing System
US20170175061A1 (en) * 2014-03-04 2017-06-22 Reliance Industries Limited An apparatus for mixing multiphase flowing particles, and a method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US596531A (en) * 1898-01-04 mcgowan
US2398729A (en) * 1943-06-29 1946-04-16 American Viscose Corp Filament extrusion device
US2440761A (en) * 1946-07-01 1948-05-04 American Viscose Corp Apparatus for producing artificial filaments
US2684082A (en) * 1950-03-09 1954-07-20 Ralph E Bletcher Surface fitting
US2815532A (en) * 1953-05-25 1957-12-10 American Viscose Corp Spinneret mixing element
US3116018A (en) * 1962-09-10 1963-12-31 Kunz Michael Fog nozzle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US596531A (en) * 1898-01-04 mcgowan
US2398729A (en) * 1943-06-29 1946-04-16 American Viscose Corp Filament extrusion device
US2440761A (en) * 1946-07-01 1948-05-04 American Viscose Corp Apparatus for producing artificial filaments
US2684082A (en) * 1950-03-09 1954-07-20 Ralph E Bletcher Surface fitting
US2815532A (en) * 1953-05-25 1957-12-10 American Viscose Corp Spinneret mixing element
US3116018A (en) * 1962-09-10 1963-12-31 Kunz Michael Fog nozzle

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3371139A (en) * 1964-12-22 1968-02-27 Monsanto Co Process and apparatus for producing self-texturing fibers
US3406427A (en) * 1965-11-04 1968-10-22 Japan Exlan Co Ltd Apparatus for spinning composite fibers
US3436448A (en) * 1966-02-03 1969-04-01 American Cyanamid Co Method and apparatus for spinning uniform fibers
US3453688A (en) * 1967-02-28 1969-07-08 Monsanto Co Filament extrusion apparatus
US3554228A (en) * 1968-06-28 1971-01-12 Wellman Lord Inc Fluid mixing apparatus and method
US4148340A (en) * 1970-08-03 1979-04-10 Process Systems, Inc. Digital fluid flow control system
US4013217A (en) * 1975-10-31 1977-03-22 Westinghouse Electric Corporation Double induction air conditioning with fluidic control
US4027858A (en) * 1976-06-29 1977-06-07 The Dow Chemical Company Apparatus for mixing
US4422769A (en) * 1981-03-16 1983-12-27 Metaalwarenfabriek Venlo B.V. Mixing apparatus for two flowing liquids
US4603707A (en) * 1983-08-02 1986-08-05 Motorola, Inc. Purge block for gas systems
US5059375A (en) * 1989-11-13 1991-10-22 Minnesota Mining & Manufacturing Company Apparatus and method for producing kink resistant tubing
US5230253A (en) * 1990-02-22 1993-07-27 Beckman Instruments, Inc. Fluid mixing device
EP0468321A1 (en) * 1990-07-27 1992-01-29 Elastogran GmbH Apparatus for the production of multi component resins, especially polyurethane between moving hands
US6491064B2 (en) * 2000-12-06 2002-12-10 Juergen Kampe Apparatus for charging a liquid medium with a gas
US20090211657A1 (en) * 2004-12-08 2009-08-27 Danfoss A/S Bubble-tolerant micro-mixers
US20150157993A1 (en) * 2013-12-05 2015-06-11 West Virginia University Extensional Flow Mixing System
US20170175061A1 (en) * 2014-03-04 2017-06-22 Reliance Industries Limited An apparatus for mixing multiphase flowing particles, and a method thereof
US10570358B2 (en) * 2014-03-04 2020-02-25 Reliance Industries Limited Apparatus with a flow diverter and flow elements for mixing multiphase flowing particles, and a method thereof

Also Published As

Publication number Publication date
GB986246A (en) 1965-03-17
DE1435554A1 (en) 1969-03-06
NL125329C (en) 1900-01-01
BE634073A (en) 1963-12-27
CH396295A (en) 1965-07-31
NL294479A (en) 1900-01-01
DK104751C (en) 1966-06-27

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