US3357047A - Nozzle for spinning fibers and method of making such nozzles - Google Patents

Nozzle for spinning fibers and method of making such nozzles Download PDF

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Publication number
US3357047A
US3357047A US481371A US48137165A US3357047A US 3357047 A US3357047 A US 3357047A US 481371 A US481371 A US 481371A US 48137165 A US48137165 A US 48137165A US 3357047 A US3357047 A US 3357047A
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US
United States
Prior art keywords
nozzle
spinning
nozzles
bottom portion
plastic
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
Application number
US481371A
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English (en)
Inventor
Keil Alfred
Bitterfeld Kreis
Mally Heinz
Gruhl Hans
Wolfl Adolf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SACHSISCHES KUNSTSEIDENWERK SI
VEB SACHSISCHES KUNSTSEIDENWERK SIEGFRIED RADEL
Original Assignee
SACHSISCHES KUNSTSEIDENWERK SI
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to NL99254D priority Critical patent/NL99254C/xx
Application filed by SACHSISCHES KUNSTSEIDENWERK SI filed Critical SACHSISCHES KUNSTSEIDENWERK SI
Priority to US481371A priority patent/US3357047A/en
Priority to US671172A priority patent/US3491181A/en
Application granted granted Critical
Publication of US3357047A publication Critical patent/US3357047A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
    • B60C11/14—Anti-skid inserts, e.g. vulcanised into the tread band
    • B60C11/18—Anti-skid inserts, e.g. vulcanised into the tread band of strip form, e.g. metallic combs, rubber strips of different wear resistance
    • 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
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes
    • D01D4/022—Processes or materials for the preparation of spinnerettes
    • 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
    • Y10S425/055—Polytetrafluoroethylene, i.e. PTFE

Definitions

  • FIG. 2d
  • the present invention relates to a nozzle for spinning synthetic fibers and to a method for manufacturing such a nozzle.
  • the nozzle according to the invention is particularly suited for spinning fibers of regenerated cellulose.
  • spinning nozzles consisting of non-metallic materials, such as polyamide, polyvinyl chloride, porcelain, glass, and the like. These nozzles,
  • these spinning nozzles especially those made from the non-metallic materials mentioned above, are damaged and decompose during the necessary cleaning process with Warm chlorosulfuric acid.
  • the channels of the nozzle aperture of the plastic nozzles are especially unsatisfactory as far as their mechanical resistance is concerned.
  • the channels are heavily damaged within a short period of time so that the nozzles have to be removed.
  • the known nozzles have shortcomings in other respects, too. For example, the manufacture of porcelain and glass nozzles is very costly. For the above mentioned reasons, many attempts have been made to eliminate the difficulties caused by plastic, porcelain and other non-metallic nozzles.
  • One attempt consisted in providing a combined nozzle in which the body that had previously been made of a noble metal, Was made from one of theabove mentioned non-metallic materials, and the nozzle bottom carrying the nozzle aperture channels (spinning apertures) was made of a noble metal alloy of a known composition e.g. of gold/platinum, platinum/rhodium, or the like.
  • the nozzle bottom after completion of the nozzle body, is pressed into and/or glued into a ring groove applied to the nozzle body.
  • the nozzles made is this manner were not satisfactory in the spinning of synthetic fibers due to the lack of a firm connection between the nozzle bottom and the nozzle body.
  • the object of this invention to provide a spinning nozzle in which the nozzle body comprises a plastic material or a plastic containing an additive, and a nozzle bottom comprising a noble metal which is resistant to chemical and mechanical influences present during the spinning process of synthetic fibers, particularly those from regenerated cellulose.
  • the nozzle according to the invention consists of a composite body and bottom portion, the body being made of an especially suited plastic material and the apertured bottom portion being made of a noble metal or noble It is yet another object of the invention to provide a metal alloy, said portions being firmly connected to one another in a manner which permits them to be subjected to any pressure obtaining during the spinning process and to the cleaning of the nozzle, without damaging the connection between the component nozzle parts.
  • polychloro-fluoro-ethylene derivatives are especially suitable as plastic material in the manufacture of the spinning nozzles of this invention. These compounds may be represented by the formula wherein X is partly substituted by fluorine and partly by chlorine. Polyethylene, on the other hand, does not meet with the chemical requirements. The most suitable material for this die extrusion method is polymonochlorotrifluoroethylene.
  • a firm connection between the nozzle body consisting of polychloro-fiuoroethylene derivatives, and the nozzle bottom consisting of a noble metal is obtained by mounting the nozzle bottom into the body during the manufacture of the body.
  • thechannels in the perforations are bored into the nozzle bottom prior to inserting itinto the nozzle body.
  • the channels are filled with a temperature-resistant mass which is chemically removed after the manufacture of the nozzle has been completed.
  • the temperature-resistant mass is enamel, which can be removed by means of an acid or an alkaline solution.
  • the required positioning or seating of the nozzle bottom into the nozzle body may be achieved in various ways.
  • the nozzle bottom may, for instance, ha e a flat surface for contact with the body portion; or the bottom portion of the nozzle may be of a shape with the rim pulled up, bent at right angles or flanged.
  • the edge of the bottom is preferably provided with holes of various shapes to improve the positioning or fseating.
  • FIG. la shows a complete nozzle with a nozzle body of cylindrical shape anda nozzle bottom inserted therein;
  • FIG. lb shows another nozzle body of conical shape Without the nozzle bottom attached.
  • FIGS. 2a to d show cross-sectional views of various examples of nozzle bottoms
  • FIG. 3 is a top view of a nozzle bottom with four oles.
  • FIGS. 1a and 1b illustrate two diiferent shapes of the body portion of the nozzle according to the invention.
  • FIG. 1a shows a cylindrical body 10 with a straight wall portion 12 to be connected with a bottom, and a flange 14 for connection with the spinning device (not shown).
  • the bottom portion is shown at 16; it has a flat perforated plate 18 which serves as nozzle proper for the extrusion of the spinning solution, and a bent-back portion 20 with crimped edge for engagement with the end of wall 12 of the nozzle body.
  • FIG. 1b illustrates a different shape of a nozzle body 22, which is conical.
  • one end of the nozzle wall 24 is flanged, the other is flat for receiving a flat bottom, as shown, for. instance in FIG. 20.
  • FIGS. 2a to 2d show different shapes of nozzle bottoms.
  • FIG. 2a illustrates, as mentioned above, a flat, plateshaped bottom 24, with a plurality of perforations 2.6a.
  • FIG. 2b is a cup-shaped nozzle bottom 28 with perforations 26b.
  • FIG. 20 is a bottom in the shape of a flanged cup '30, likewise having perforations 26c and
  • FIG. 2d illustrates a bottom portion 32 similar to the one shown in FIG. 1a in assembled position; the bottom portion has perforations 26d.
  • FIG. *3 is a top view of the bottom portion which is designated by 34, having a rim '36 which is provided with holes 38. During the process of manufacturing the nozzle, these holes are filled with plastic which serves for the connection of the body and the bottom portion in the finished nozzle, as later described. While the holes shown in FIG. 3 are circular, it should be understood that they could have any desired shape, e.g. square, triangular or oval.
  • the nozzle body is given an appropriate shape in a thermo-plastic process under high pressure, with a nozzle bottom being positioned in a suitable manner in the body, or attached thereto, respectively.
  • a nozzle bottom being positioned in a suitable manner in the body, or attached thereto, respectively.
  • flowing of the plastic material' will not occur at temperatures slightly below the melting point despite high pressure. It is important to provide the nozzle bottom with the no'zzle apertures 26a to d and to polish the bottom prior to its insertion into or attachment tothe nozzle body.
  • the mass with which the channels of the nozzle perforations 26a-26d are filled during the polishing process is applied to the nozzle bottom at a high temperature, which would damage the plastic material of the *nozzle body.
  • the filling substance is removed chemically fr'o'rnthe nozzle apertures by acid or caustic alkalion'ly after'the completion of the nozzle so that the channels cannot be clogged with melted plastic materialduring the injection or pressing in of the nozzle bottom into the nozzle body.
  • the rigid connection of the nozzle body and the nozzle bottom is improved by the arrangement of holes 38 at the rim of the nozzle bottom whichmay have various shapes as mentioned.
  • the plastic material flows into these :holes during the Tthermo-p'la'stlc process and thus provides a firmconnectionbetween-nozzle body andnozzle bottom.
  • the nozzle body consisting of polychloro-fluoro-ethylene, particu larly polymonochloro trifluoro ethylene, has considerable advantages over that consisting of polyamides, polyvinyl chloride, and the like, which have been used up to now and especially with respect to the chemical requirements during the spinning process.
  • the plastic mentioned is resistant to spinning bath temperatures up to 70 C., sulphuric acid, carbon sulphide and warm chloro-sulphuric acid. It has not been possible to detach or loosen the nozzle bottom inserted into the nozzle body according to this invention at pressures far exceeding 11 atmospheres so that the advantage of the nozzle made according to the present invention is obvious in view of its resistance to chemical attack and the high durability.
  • plastic may be used very successfully, which contains additives of materials conventional in this art. Such materials are for instance, metallic oxides.
  • a composite nozzle for spinning synthetic fibers comprising a bottom portion made of a metallic material selected from the group consisting of noble metals and noble metal alloys, and a body portion consisting of a polymer material having the general formula poly-mon'ochloro trifuoro-ethylene and is several times the size of the bottom 'portion.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US481371A 1965-08-20 1965-08-20 Nozzle for spinning fibers and method of making such nozzles Expired - Lifetime US3357047A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL99254D NL99254C (enrdf_load_stackoverflow) 1965-08-20
US481371A US3357047A (en) 1965-08-20 1965-08-20 Nozzle for spinning fibers and method of making such nozzles
US671172A US3491181A (en) 1965-08-20 1967-07-20 Method of making nozzles for spinning fibers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US481371A US3357047A (en) 1965-08-20 1965-08-20 Nozzle for spinning fibers and method of making such nozzles
US67117267A 1967-07-20 1967-07-20

Publications (1)

Publication Number Publication Date
US3357047A true US3357047A (en) 1967-12-12

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US481371A Expired - Lifetime US3357047A (en) 1965-08-20 1965-08-20 Nozzle for spinning fibers and method of making such nozzles
US671172A Expired - Lifetime US3491181A (en) 1965-08-20 1967-07-20 Method of making nozzles for spinning fibers

Family Applications After (1)

Application Number Title Priority Date Filing Date
US671172A Expired - Lifetime US3491181A (en) 1965-08-20 1967-07-20 Method of making nozzles for spinning fibers

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NL (1) NL99254C (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD286807S (en) 1983-05-09 1986-11-18 Edward Paige Orifice plate for a radiator valve
US4997113A (en) * 1985-05-17 1991-03-05 The Coca-Cola Company Orifice insertion and removal device for a post-mix beverage valve
CN106573134A (zh) * 2014-06-20 2017-04-19 美德斯普瑞公司 气雾或喷雾装置、喷雾嘴单元及其制造方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3969455A (en) * 1970-05-25 1976-07-13 Continental Can Company, Inc. Method for forming, sealing, capping and pasteurization of beverage in plastic container
US3676540A (en) * 1971-03-15 1972-07-11 American Cyanamid Co Wet-spinning shaped fibers
US4143112A (en) * 1974-05-30 1979-03-06 Johnson & Johnson Method for making probe covers for electronic thermometers
US4194059A (en) * 1976-12-20 1980-03-18 Compagnie Generale Des Etablissements Michelin Assembly for an electrochemical device comprising a plate and a support
US4960554A (en) * 1985-10-07 1990-10-02 American Cyanamid Company Method for making helically wound extrudate particles

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2403476A (en) * 1944-08-08 1946-07-09 Du Pont Extrusion apparatus
US2803851A (en) * 1953-03-13 1957-08-27 American Viscose Corp Spinneret assembly
US2983570A (en) * 1958-02-10 1961-05-09 Pirelli Porous moulds for manufacturing plastic articles
US3044155A (en) * 1957-08-02 1962-07-17 Engelhard Ind Inc Spinnerette

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2403476A (en) * 1944-08-08 1946-07-09 Du Pont Extrusion apparatus
US2803851A (en) * 1953-03-13 1957-08-27 American Viscose Corp Spinneret assembly
US3044155A (en) * 1957-08-02 1962-07-17 Engelhard Ind Inc Spinnerette
US2983570A (en) * 1958-02-10 1961-05-09 Pirelli Porous moulds for manufacturing plastic articles

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD286807S (en) 1983-05-09 1986-11-18 Edward Paige Orifice plate for a radiator valve
US4997113A (en) * 1985-05-17 1991-03-05 The Coca-Cola Company Orifice insertion and removal device for a post-mix beverage valve
CN106573134A (zh) * 2014-06-20 2017-04-19 美德斯普瑞公司 气雾或喷雾装置、喷雾嘴单元及其制造方法
US20170281880A1 (en) * 2014-06-20 2017-10-05 Medspray B.V. Aerosol or spray device, spray nozzle unit and method of manufacturing the same
US10632265B2 (en) * 2014-06-20 2020-04-28 Medspray B.V. Aerosol or spray device, spray nozzle unit and method of manufacturing the same
CN106573134B (zh) * 2014-06-20 2021-04-06 美德斯普瑞公司 喷雾装置和用于制造喷雾装置的方法及相关装置

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Publication number Publication date
NL99254C (enrdf_load_stackoverflow)
US3491181A (en) 1970-01-20

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