US3403422A - Apparatus for spinning multicomponent fibers - Google Patents
Apparatus for spinning multicomponent fibers Download PDFInfo
- Publication number
- US3403422A US3403422A US467509A US46750965A US3403422A US 3403422 A US3403422 A US 3403422A US 467509 A US467509 A US 467509A US 46750965 A US46750965 A US 46750965A US 3403422 A US3403422 A US 3403422A
- Authority
- US
- United States
- Prior art keywords
- slit
- spinning
- fiber
- fibers
- interfacial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
- D01D5/32—Side-by-side structure; Spinnerette packs therefor
-
- 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
- D01D5/22—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/08—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyacrylonitrile as constituent
-
- 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
Definitions
- This invention relates to improvements in the production of multi-component, composite or conjugated fibers. More particularly, this invention relates to apparatus for producing multi-component fibers wherein two or more different components are laminated or conjugated longitudinally of the fibers with a zigzag or wavy interfacial juncture across the fiber to provide a larger area of interfacial junction between the different components forming, the fibers so as to prevent delamination of these different components.
- the known multi-component fibers have drawbacks that the components of the fibers tend to be peeled off or delaminated. This tendency is more pronounced when the physical and chemical properties of the components are more different in order to improve the crimping characteristics. When the fiber components are so peeled off or delaminated the crimping characteristics are lost and the appearance of the final products made of such fibers is adversely affected.
- such a zigzag or wavy interfacial junction can be formed by causing the flows of the different fiber-forming materials through the respective passages which mesh with each other to form a zigzag or wavy interfacial line in cross section, before they flow in laminar flow toward an orifice for being extruded therethrough.
- these materials are merged into a common channel through the respective passages they flow through said channel in laminar flow with the interfacial zigzag juncture between the different materials.
- a spinning apparatus which includes means for separately supplying a plurality of different fiber-forming materials, a narrow channel for receiving each of said materials, said narrow channels merging into a common narrow slit communicating with orifices, characterised by first passages for one material between one narrow channel and the narrow slit and second passages for the other material between next narrow channel and the narrow slit, these first and second passages being so formed and arranged alternately that the different fiber-forming materials from respective channels flow through the respective passages into the common slit in laminar flow with a zigzag interface in cross section.
- FIG. 1 is a longitudinal section of a device embodying the invention
- FIG. 2 is an enlarged view of a part of FIG. 1;
- FIG. 3 is a perspective view of FIG. 2;
- FIG. 4 is a cross section taken on the line A-A' of FIG. 2;
- FIG. 5 is a cross section taken on the line BB of FIG. 2;
- FIG. 6 is an enlarged cross-sectional view, schematically represented, of the fiber obtained by the invention.
- FIGS. 1, 2 and 3 there is illustrated a spinning device for producing bi-component fiber embodying this invention, which comprises a spinnerette plate 2 having orifices 1 arranged in rows spaced from each other.
- the plate 2 is mounted on a guide plate 4 having slits 3, there being the same number of slits as there are rows of orifices 1.
- These plates 2 and 4 are mounted and assembled on a sleeve 5 and at the end of supply tube 8 by means of a cap 6 and nut 7.
- the inlet section of the cylindrical sleeve 5 which is inserted and held in the supply tube 8 is provided with a bafile (not shown) which serves to divide the inlet section into two chambers 9 and 10.
- One spinning solution is supplied to one chamber 9 and the other is supplied to the other chamber 10.
- the outlet section of the cylindrical sleeve 5 is provided with a plurality of narrow channels 12, 12' defined by partition walls 11.
- the arrangement is such that the channels 12 and 12' are connected with the respective chambers 9 and 10 so that alternate channels are supplied one solution and the remaining channels are supplied with the other solution.
- the first spinning solution flows from one chamber 9 to alternate channels 12 and down into the associated slit 3 toward orifices 1.
- the second spinning solution flows from the other chamber 10 to alternate channels 12 and also down into the associated slit 3.
- the two different solutions flow in laminar flow down to the row of orifices 1 into a coagulation bath (not shown) to form composite fibers.
- the important feature of this invention is in the provision of special passages between the channel 12, 12' and the slit 3 so that when one solution from the channel 12 and the other solution from the adjacent channel 12' flow together into the common slit in laminar flow there is formed a zigzag or wavy interfacial junction between the solutions in cross section of the laminar flow.
- a plurality of grooves 15 is formed across the lower edge portion on one side of the partition wall 11 for communication with the channel 12 and the slit 3, while corresponding grooves 15' are formed across the lower edge portion on the other side of the partition wall 11 side for communication with the other channel 12' and the same slit 3.
- grooves 15 and 15' are alternately arranged as shown so that the solutions discharged from these grooves will alternately mesh with one another and flow into the common slit 3 in laminar flow with a zigzag or wavy interfacial junction in cross section as well shown in FIG. 5.
- the pitch of the grooves 15 and 15' and consequently the pitch of the resulting interfacial undulations in the laminar flow within the slit 3 must be smaller than the root or base diameter of the orifice 1.
- This invention can be applied not only to a wet spinning process but also to a melt spinning process.
- This application is applicable to spinning of any fiber-forming material such as acrylonitrile polymers, polyamides, polyesters, polyvinyl chlorides, polyvinyl alcohols, polyolefins, cellulose acetates, viscose, etc. so far as the production of multi-component fibers is concerned.
- Example Two spinning solutions were prepared respectively from a copolymer A (intrinsic viscosity 1.5 dl/g. in DMF) consisting of 90 parts acrylonitrile and 10 parts methyl acrylate and a copolymer B (intrinsic viscosity 1.5 dl./ g. in DMF) consisting of 87 parts acrylonitrile and 13 parts methyl acrylate, by dissolving each polymer in a 45 aqueous solution of sodium thiocyanate to be a 10% solution.
- a copolymer A Intrinsic viscosity 1.5 dl/g. in DMF
- a copolymer B Intrinsic viscosity 1.5 dl./ g. in DMF
- the dry fibers prepared above were dyed and heat treated so as to allow the dye to diffuse sufiiciently into the fiber structure. Then the cross-section of the -fiber was observed under a microscope. There was observed an undulated inter-facial junction as shown in The fibers were spun into yarns, which were then knit into a fabric. No delamination' of the fiber components was observed during the mechanical processing. When heat treated in a usual manner the yarns developed very satisfactory coily crimps.
- An apparatus for spinning multicomponent fibers from at least two difierent fiber-forming materials which comprises first supply means for supplying the first of the ditferent fiber-forming materials and a second separate supply means for supplying the second of said difierent fiber forming materials, a narrow channel extending from each of said means for supplying the materials, slit defining means defining at least one common narrow slit, a spinnerette plate having a row of orifices therein into which said common narrow slit opens, said apparatus having a plurality of first grooved passages extending between one narrow channel and the narrow slit and spaced from each other along the length of said slit, and said apparatus further having a plurality of second grooved passages extending between the other narrow channel and the narrow slit, said second grooved passages alternating with said first grooved passages, said grooved passages receiving said different fiber-forming materials and causing them to flow in laminar fiow into said narrow slit, the pitch
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3773264 | 1964-07-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3403422A true US3403422A (en) | 1968-10-01 |
Family
ID=12505648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US467509A Expired - Lifetime US3403422A (en) | 1964-07-02 | 1965-06-28 | Apparatus for spinning multicomponent fibers |
Country Status (7)
Country | Link |
---|---|
US (1) | US3403422A (de) |
BE (1) | BE666252A (de) |
DE (1) | DE1660366B1 (de) |
ES (1) | ES314891A1 (de) |
GB (1) | GB1060337A (de) |
LU (1) | LU48975A1 (de) |
NL (1) | NL6508549A (de) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3492692A (en) * | 1967-02-07 | 1970-02-03 | Japan Exlan Co Ltd | Apparatus for spinning composite fibers |
US3540077A (en) * | 1968-12-30 | 1970-11-17 | Japan Exlan Co Ltd | Apparatus for spinning multi-component fibers |
US3814561A (en) * | 1970-04-07 | 1974-06-04 | Kanagafuchi Boseki Kk | Spinnerets for producing multi-segment filaments |
US3981650A (en) * | 1975-01-16 | 1976-09-21 | Beloit Corporation | Melt blowing intermixed filaments of two different polymers |
US4948354A (en) * | 1988-04-27 | 1990-08-14 | Bridgestone/Firestone, Inc. | Extrusion head for producing sheet material reinforced internally with close-packed cords |
US5017116A (en) * | 1988-12-29 | 1991-05-21 | Monsanto Company | Spinning pack for wet spinning bicomponent filaments |
US5511960A (en) * | 1992-03-17 | 1996-04-30 | Chisso Corp. | Spinneret device for conjugate melt-blow spinning |
US5591510A (en) * | 1994-06-14 | 1997-01-07 | Tredegar Industries, Inc. | Layered fabric material having angled capillaries |
US5718928A (en) * | 1994-06-14 | 1998-02-17 | Tredegar Industries, Inc. | Screen for producing a perforated film |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE621433A (de) * | 1962-03-07 | 1900-01-01 | ||
US2815532A (en) * | 1953-05-25 | 1957-12-10 | American Viscose Corp | Spinneret mixing element |
GB823603A (en) * | 1955-12-21 | 1959-11-18 | Rolls Royce | Mouldings of rings and other articles from silicone elastomers and p.t.f.e. |
US2936482A (en) * | 1955-06-30 | 1960-05-17 | Du Pont | Spinneret assembly |
US3182106A (en) * | 1961-07-14 | 1965-05-04 | American Cyanamid Co | Spinning multi-component fibers |
US3188689A (en) * | 1958-05-27 | 1965-06-15 | Du Pont | Spinneret assembly |
US3295552A (en) * | 1962-06-25 | 1967-01-03 | Monsanto Co | Apparatus for combining spinning compositions |
US3308503A (en) * | 1963-03-22 | 1967-03-14 | Textile & Chemical Res Company | Mixing device for spinnerettes |
US3318987A (en) * | 1963-09-09 | 1967-05-09 | Monsanto Co | Method of multi-component spinning |
US3341891A (en) * | 1962-08-06 | 1967-09-19 | Toyo Rayon Co Ltd | Production of a composite filament and a spinneret assembly |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3017686A (en) * | 1957-08-01 | 1962-01-23 | Du Pont | Two component convoluted filaments |
US3039173A (en) * | 1958-02-12 | 1962-06-19 | Du Pont | Crimped textile products |
GB954274A (en) * | 1961-07-14 | 1964-04-02 | Japan Exlan Co Ltd | Apparatus for spinning crimped artificial filaments |
-
1965
- 1965-06-28 US US467509A patent/US3403422A/en not_active Expired - Lifetime
- 1965-07-01 BE BE666252D patent/BE666252A/xx unknown
- 1965-07-02 DE DE19651660366 patent/DE1660366B1/de active Pending
- 1965-07-02 ES ES0314891A patent/ES314891A1/es not_active Expired
- 1965-07-02 LU LU48975A patent/LU48975A1/xx unknown
- 1965-07-02 NL NL6508549A patent/NL6508549A/xx unknown
- 1965-07-02 GB GB28244/65A patent/GB1060337A/en not_active Expired
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2815532A (en) * | 1953-05-25 | 1957-12-10 | American Viscose Corp | Spinneret mixing element |
US2936482A (en) * | 1955-06-30 | 1960-05-17 | Du Pont | Spinneret assembly |
GB823603A (en) * | 1955-12-21 | 1959-11-18 | Rolls Royce | Mouldings of rings and other articles from silicone elastomers and p.t.f.e. |
US3188689A (en) * | 1958-05-27 | 1965-06-15 | Du Pont | Spinneret assembly |
US3182106A (en) * | 1961-07-14 | 1965-05-04 | American Cyanamid Co | Spinning multi-component fibers |
BE621433A (de) * | 1962-03-07 | 1900-01-01 | ||
US3295552A (en) * | 1962-06-25 | 1967-01-03 | Monsanto Co | Apparatus for combining spinning compositions |
US3341891A (en) * | 1962-08-06 | 1967-09-19 | Toyo Rayon Co Ltd | Production of a composite filament and a spinneret assembly |
US3308503A (en) * | 1963-03-22 | 1967-03-14 | Textile & Chemical Res Company | Mixing device for spinnerettes |
US3318987A (en) * | 1963-09-09 | 1967-05-09 | Monsanto Co | Method of multi-component spinning |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3492692A (en) * | 1967-02-07 | 1970-02-03 | Japan Exlan Co Ltd | Apparatus for spinning composite fibers |
US3540077A (en) * | 1968-12-30 | 1970-11-17 | Japan Exlan Co Ltd | Apparatus for spinning multi-component fibers |
US3814561A (en) * | 1970-04-07 | 1974-06-04 | Kanagafuchi Boseki Kk | Spinnerets for producing multi-segment filaments |
US3981650A (en) * | 1975-01-16 | 1976-09-21 | Beloit Corporation | Melt blowing intermixed filaments of two different polymers |
US4948354A (en) * | 1988-04-27 | 1990-08-14 | Bridgestone/Firestone, Inc. | Extrusion head for producing sheet material reinforced internally with close-packed cords |
US5017116A (en) * | 1988-12-29 | 1991-05-21 | Monsanto Company | Spinning pack for wet spinning bicomponent filaments |
US5511960A (en) * | 1992-03-17 | 1996-04-30 | Chisso Corp. | Spinneret device for conjugate melt-blow spinning |
US5591510A (en) * | 1994-06-14 | 1997-01-07 | Tredegar Industries, Inc. | Layered fabric material having angled capillaries |
US5718928A (en) * | 1994-06-14 | 1998-02-17 | Tredegar Industries, Inc. | Screen for producing a perforated film |
Also Published As
Publication number | Publication date |
---|---|
NL6508549A (de) | 1966-01-03 |
ES314891A1 (es) | 1966-04-01 |
DE1660366B1 (de) | 1970-11-19 |
GB1060337A (en) | 1967-03-01 |
BE666252A (de) | 1966-01-03 |
LU48975A1 (de) | 1965-09-02 |
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