US3308503A - Mixing device for spinnerettes - Google Patents
Mixing device for spinnerettes Download PDFInfo
- Publication number
- US3308503A US3308503A US352465A US35246564A US3308503A US 3308503 A US3308503 A US 3308503A US 352465 A US352465 A US 352465A US 35246564 A US35246564 A US 35246564A US 3308503 A US3308503 A US 3308503A
- Authority
- US
- United States
- Prior art keywords
- discs
- layers
- chambers
- filaments
- succession
- 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
-
- 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
-
- 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
Definitions
- the present invention relates to a device for spinning artificial or synthetic fibres and filaments which comprise two or more juxtaposed constituents distributed substantially identically over the entire length of the fibres and filaments so as to impart to the latter a continuous structural hetero eneity in the longitudinal direction. It is known that filaments and fibres of this type have advantageous properties and they can in particular curl spontaneously or when subsequently treated, for example under the action of heat, stretching, swelling in liquid medium, etc.
- the present invention provides an apparatus for producing more or less concentric and alternate thin layers of two constituents intended to be simultaneously spun.
- the invention is not limited to the specific apparatus shown and it is obvious that it is applicable to any other variant, for example to the spinning of two, three or four constituents in layers of equal or dilferent thickness.
- FiGS. la and 1b are sectional views illustrating the arrangement of the stacking discs
- FIG. 2 is a diagrammatic view illustrating the invention applied to a spinning apparatus
- FIG. 3 is a sectional view on an enlarged scale illustrating the arrangement of the various layers of material as formed by this auaratus; and 7 FIG. 4- is a diagrammatic view illustrating the fibre arrangement in the product.
- the apparatus illustrated in FIGS. 1a and 1b and in FIG. 2 is composed of a stack of thin discs 1 ,1 1 1 separated by annular packings 2 2. 2 2, so that the assembly forms a succession of contiguous circular chamhers 3 3 3 5
- the discs 1 i 1 i each comprise at their centre a circular perforation 4 4 4 4 so that the diameter of the perforation 4 is slightly greater than the diameter of the perforation 4 the diameter of the perforation 4 is slightly greater than the diameter of the perforation 4 the diameter of the perforation 4 is slightly greater than the diameter of the perforation 4 etc.
- the discs 1 comprise in addition a series of peripheral holes 5, 6, and the annular packings 2 disposed between the discs 3; comprise a series of peripheral holes similar to 5, 6, so that the alternate stacking of the discs and the packings forms continuous longitudinal channels 7, 8 parallel to the axis XX'.
- the materials A and B intended to form the concentric layers are fed through these channels 7, 8.
- the contiguous annular chambers 3 communicate laterally with the channels 7, 8 th ough recesses 9, it formed in the packings opposite the channel which it is desired to bring into communication with the chamber.
- PEG. 2 shows that the chamber 3 fed with material A through the recesses it formed in front of the holes 5 in the packing 2 produces an initial column 11 of material A.
- the chamber 3 fed with material B through the recesses 9 formed in front of the holes 6 of the packing 2 thereafter produces an annular layer 11 of material B a ound the initial column 11 of material A.
- the apparatus is particularly advantageous because it permits of preparing upstream of the sninneret, at a great distance from the latter, and by a sim le means an assembly of constituents formed of a very large number of layers of millimetric dimensions. All of the concentric layers thus formed may be caused to travel through the collectors usually employed for the feeding of the spinnerets. The relative arrangement of the constituents is not destroyed by the travel through the collectors, despite the changes of cross-sectional size or direction. The cross-section of the combination of concentric lavers formed is thereafter effectively limited by reducing the diameter of the collector by Way of a conical tube 12. The layers then acquires the micromillimetric dimensions which are compatible with the use of spinnerets formed with 1,000 holes or more to the square centimet e.
- the number of peripheral holes forming the supply channels may also vary within wide limits, and there may be introduced into the apparatus the number of spinnable materials which is considered desirable, and the annular chambers may be fed in a predetermined order.
- the thickness of the Dackings, or the diameter of the central perforations of the discs it is possible to form concentric layers of equal or different thicknesses, and this result may also be obtained by varying the rates of flow of the scinnable materials introduced into the apparatus.
- the central perforations in the discs may have a non-circular cross-section, for example oval, square, rectangular, etc. delivery end of the apparatus layers Whose cross-section has the shape appropriate for the proposed use.
- viscoses may be employed which differ from one another by the caustic soda content, by the degree of xanthation, by the viscosity, by the salt point, by the presence or absence of coagulation retarders, etc.
- the invention is also applicable to the wet spinning and the dry spinning of other materials of high molecular weight, such as, for example, the cellulose esters and ethers, the proteins, the polymers and the conolymers of vinyl chloride, of acrylonitrile or of vinylidene cyanide, polyvinyl alcohol, etc.
- the invention is also applicable to the meet spinning of, for example, polyamides, polyesters, polyurethanes, polyurcas, polyolefins, etc.
- Example 2 A viscose A containing 9% of cellulose and 4.8% of caustic soda, having a viscosity of poises and a salt point of 4, is prepared, and then a viscose B containing 8% of cellulose and 7% of caustic soda, and having a viscosity of 40' poises and a salt point of 5.25. Viscose B also contains small quantities of coagulation There are then obtained at the sulphuric acid.
- retarders such as, for example, amines or polyamines, polyoxyalkylenes, condensation products of amines and alkylene oxides, etc., in a proportion of from 0.1% to (calculated on the alpha-cellulose).
- This device comprises 125 discs, of which the central perforations have a diameter increasing by 0.2 mm. from one disc to the next, whereby it is possible to obtain layers whose uniform thickness is 0.1 mm.
- the discs (and the corresponding packings) each have six peripheral perforations forming six longitudinal channels which are fed respectively in groups of three by the viscose A and by the viscose B, which arrive separately through the nozzles 13 and 14. It is arranged that the viscose A and the viscose B penetrate in turns into the consecutive chambers formed by the packings and the discs, so as to form 125 regularly alternating layers of viscose A and viscose B, the combination of which appears at the delivery end of the apparatus in the form of a cylinder with a radius equal to 125 0.1 mm., i.e. 12.5 mm., and consequently with a diameter equal to 25 mm. P16.
- FIG. 3 illustrates a partial cross-section through the cylinder of concentric layers of the two viscoses A and B (differently pigmented as required). This section shows the already very satisfactory regularity of the thickness of the concentric layers formed.
- the diameter of the said cylinder of concentric layers is thereafter reduced to 15 mm. by passing it through an intermediate frustoconical tube and the structure of concentric layers is supplied to a nozzle having 7,500 holes, which is usual in the artificial staple fibre industry.
- the holes in the nozzle which have a diameter of ,4 mm, are equidistant and distributed over a useful surface of 45 mm. diameter.
- the spinneret comprises a normal metal filter, but this does not substantially affect the width and the regularity of the arrangement of the thin layers, which merely acquire a slightly sawtoothed profile.
- the filaments formed are coagulated in a first bath at 64 C. containing 95 g. of sulphuric acid, 120 g. of sodium sulphate and 75 g. of zinc sulphate per litre, and also products having an appropriate surface activity.
- the filaments formed travel 90 cm. through the first bath, Whereafter they are stretched by 90% in a second boiling aqueous bath containing small quantities (10 g./l.) of
- the bundle of filaments, optionally previously relaxed, or the cut filaments, are immersed in boiling water to develop the crimp.
- the filaments or fibres are thereafter subjected to the deacidifying, desulphurizing, washing, dressing, opening and drying operations.
- Crimp (undulations/cm.) 14-16 The crimp obtained is very pronounced, and it is stable under washing treatments.
- FIG. 4 shows that the fibre sections obtained all have a mixed structure, formed of the two constituents juxtaposed in two or even three, four or five alternate layers.
- Apparatus for spinning crimped artificial or synthetic fibres and filaments comprising two or more juxtaposed constituents which are identically distributed over the entire length of the fibres and filaments so as to impart thereto a continuously heterogeneous structure in the longitudinal direction, said apparatus comprising a stack of thin discs formed with circular central perforations of increasing diameter, said discs being separated from one another by annular packings so that the assembly forms a succession of chambers, and means feeding each of said chambers with a predetermined material to be spun, the said chambers discharging in succession through said center perforations so as to form a column of said material consisting of a succession of thin annular layers adapted to be fed to a spinneret.
- Apparatus as set forth in claim 1 including a spinneret having rows of holes therein in which the thickness of the layers of material is less than one-half the distance between the centers of adjacent holes in said spinneret.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR928925A FR1359880A (fr) | 1963-03-22 | 1963-03-22 | Nouveau dispositif pour la fabrication de fibres frisées |
Publications (1)
Publication Number | Publication Date |
---|---|
US3308503A true US3308503A (en) | 1967-03-14 |
Family
ID=8799867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US352465A Expired - Lifetime US3308503A (en) | 1963-03-22 | 1964-03-17 | Mixing device for spinnerettes |
Country Status (7)
Country | Link |
---|---|
US (1) | US3308503A (xx) |
AT (1) | AT253105B (xx) |
BE (1) | BE645240A (xx) |
CH (1) | CH416930A (xx) |
FR (1) | FR1359880A (xx) |
GB (1) | GB1019052A (xx) |
NL (1) | NL6402515A (xx) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3403422A (en) * | 1964-07-02 | 1968-10-01 | Japan Exlan Co Ltd | Apparatus for spinning multicomponent fibers |
US3406427A (en) * | 1965-11-04 | 1968-10-22 | Japan Exlan Co Ltd | Apparatus for spinning composite fibers |
US3457342A (en) * | 1965-12-16 | 1969-07-22 | Ici Ltd | Method and apparatus for spinning heterofilaments |
US3498873A (en) * | 1965-10-29 | 1970-03-03 | Dow Chemical Co | Net structures of multicomponent filaments |
US3546739A (en) * | 1968-11-18 | 1970-12-15 | Dow Badische Co | Bicomponent manifold |
US3814561A (en) * | 1970-04-07 | 1974-06-04 | Kanagafuchi Boseki Kk | Spinnerets for producing multi-segment filaments |
CN105133052A (zh) * | 2015-08-31 | 2015-12-09 | 烟台森森环保科技有限公司 | 一种无针式静电纺丝设备 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3382534A (en) * | 1965-08-19 | 1968-05-14 | Monsanto Co | Plate type fluid mixer |
EP0330766B1 (en) * | 1988-02-29 | 1993-06-02 | Toray Industries, Inc. | Multi-layered conjugated acrylic fibers and the method for their production |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2031387A (en) * | 1934-08-22 | 1936-02-18 | Schwarz Arthur | Nozzle |
US2820249A (en) * | 1952-10-08 | 1958-01-21 | Lavorazione Mat Plastiche Sas | Apparatus for coating articles with multi-layer linings |
US2879547A (en) * | 1956-10-16 | 1959-03-31 | Kendall & Co | Method of making fused film laminates |
US2952043A (en) * | 1953-12-24 | 1960-09-13 | Phillips Petroleum Co | Production of films from carboxylic acid containing conjugated diene polymer and an amine containing conjugated diene polymer |
US3039524A (en) * | 1958-11-03 | 1962-06-19 | Du Pont | Filaments having improved crimp characteristics and products containing same |
US3117906A (en) * | 1961-06-20 | 1964-01-14 | Du Pont | Composite filament |
US3123858A (en) * | 1964-03-10 | Heated | ||
US3131427A (en) * | 1958-10-17 | 1964-05-05 | Celanese Corp | Spinnerette |
US3176345A (en) * | 1962-06-25 | 1965-04-06 | Monsanto Co | Spinnerette |
-
1963
- 1963-03-22 FR FR928925A patent/FR1359880A/fr not_active Expired
-
1964
- 1964-03-11 NL NL6402515A patent/NL6402515A/xx unknown
- 1964-03-11 GB GB10347/64A patent/GB1019052A/en not_active Expired
- 1964-03-16 BE BE645240D patent/BE645240A/xx unknown
- 1964-03-17 US US352465A patent/US3308503A/en not_active Expired - Lifetime
- 1964-03-20 AT AT246264A patent/AT253105B/de active
- 1964-03-20 CH CH370264A patent/CH416930A/fr unknown
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3123858A (en) * | 1964-03-10 | Heated | ||
US2031387A (en) * | 1934-08-22 | 1936-02-18 | Schwarz Arthur | Nozzle |
US2820249A (en) * | 1952-10-08 | 1958-01-21 | Lavorazione Mat Plastiche Sas | Apparatus for coating articles with multi-layer linings |
US2952043A (en) * | 1953-12-24 | 1960-09-13 | Phillips Petroleum Co | Production of films from carboxylic acid containing conjugated diene polymer and an amine containing conjugated diene polymer |
US2879547A (en) * | 1956-10-16 | 1959-03-31 | Kendall & Co | Method of making fused film laminates |
US3131427A (en) * | 1958-10-17 | 1964-05-05 | Celanese Corp | Spinnerette |
US3039524A (en) * | 1958-11-03 | 1962-06-19 | Du Pont | Filaments having improved crimp characteristics and products containing same |
US3117906A (en) * | 1961-06-20 | 1964-01-14 | Du Pont | Composite filament |
US3176345A (en) * | 1962-06-25 | 1965-04-06 | Monsanto Co | Spinnerette |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3403422A (en) * | 1964-07-02 | 1968-10-01 | Japan Exlan Co Ltd | Apparatus for spinning multicomponent fibers |
US3498873A (en) * | 1965-10-29 | 1970-03-03 | Dow Chemical Co | Net structures of multicomponent filaments |
US3406427A (en) * | 1965-11-04 | 1968-10-22 | Japan Exlan Co Ltd | Apparatus for spinning composite fibers |
US3457342A (en) * | 1965-12-16 | 1969-07-22 | Ici Ltd | Method and apparatus for spinning heterofilaments |
US3546739A (en) * | 1968-11-18 | 1970-12-15 | Dow Badische Co | Bicomponent manifold |
US3814561A (en) * | 1970-04-07 | 1974-06-04 | Kanagafuchi Boseki Kk | Spinnerets for producing multi-segment filaments |
CN105133052A (zh) * | 2015-08-31 | 2015-12-09 | 烟台森森环保科技有限公司 | 一种无针式静电纺丝设备 |
Also Published As
Publication number | Publication date |
---|---|
BE645240A (xx) | 1964-09-16 |
NL6402515A (xx) | 1964-09-23 |
CH416930A (fr) | 1966-07-15 |
AT253105B (de) | 1967-03-28 |
GB1019052A (en) | 1966-02-02 |
FR1359880A (fr) | 1964-04-30 |
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