US2742667A - Spinnerets - Google Patents

Spinnerets Download PDF

Info

Publication number
US2742667A
US2742667A US274266A US27426652A US2742667A US 2742667 A US2742667 A US 2742667A US 274266 A US274266 A US 274266A US 27426652 A US27426652 A US 27426652A US 2742667 A US2742667 A US 2742667A
Authority
US
United States
Prior art keywords
spinnerets
orifices
diameter
spinneret
truncated conical
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
US274266A
Other languages
English (en)
Inventor
Clouzeau Claude
Etienne Jean
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.)
Rhodiaceta SA
Original Assignee
Rhodiaceta SA
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
Application filed by Rhodiaceta SA filed Critical Rhodiaceta SA
Application granted granted Critical
Publication of US2742667A publication Critical patent/US2742667A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes
    • D01D4/022—Processes or materials for the preparation of spinnerettes
    • 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

Definitions

  • a spinneret according to the invention is characterised in that each of the orifices in the spinneret comprises a. cylindrical part extending from the out-side face of the spinneret and a coaxial inverted truncated conical part whose large base is situated in the inside face of the spinneret, the height of the cylindrical part being less than 7 of the thickness of the spinneret, and the truncated conical part having an angle between the sides within the range of 15 to 60.
  • the cylindrical part can be either directly connected to the conical part or indirectly through an intermediate part formed by a figure of coaxial revolution, for example, a truncated cone whose height is less than 7 of the total thickness of the spinneret which can be as much as, or greater than, mm.
  • the orifices of the spinnerets according to the invention are of a form which is particularly suited to obtaining a highly polished, practically glazed, surface condition over the whole extent of their walls.
  • these walls can be given any other desired characteristic and in particular they can comprise, hollowed or in relief, any figure or any design.
  • the spinnerets according to this invention are easier to start spinning with than the spinnerets previously known, they are favourable to very steady spinning of the materialbeing spun, and can be used longer whilst continuing to give products of excellent quality. They are, moreover, very simple to clean with the agents generally used.
  • the spinnerets according to the invention can be in the form of discs or of cups and comprise any number of orifices. They can be made of any metal, for example, nickel, or chromium steel containing practically no nickel, but preferably they are made from a steel containing chromium and nickel, for example 18% chromium and 8% nickel. Such steel has excellent resistance, both to the abrasion produced in the course of spinning and to chemical attack occasioned either by the products spun or by the acids, for example, concentrated hot nitric or sulphuric acid, generally used for cleaning spinnerets. In particular, this resistance is better than that of chromium steel containing no nickel or very little.
  • steel containing chromium, possibly nickel, and in addition one or more other ingredients normally employed in the composition of steels called special such as for example, manganese, titanium, molybdenum, vanadium, copper or tungsten, may be used for the manufacture of these spinnerets.
  • the spinnerets forming the subject of the present invention can be utilised for the manufacture of all filaments, threads, horse-hairs etc. whether artificial or synthetic, particularly for those having a base of: cellulose esters (especially cellulose acetate), polyvinyl derivatives (especially polyvinylchloride, vinylchloride-vinyl acetate copolymer, polyvinylcyanide), superpolycondensates (especially superpolyamides, superpolyurethanes and superpolyesters).
  • cellulose esters especially cellulose acetate
  • polyvinyl derivatives especially polyvinylchloride, vinylchloride-vinyl acetate copolymer, polyvinylcyanide
  • superpolycondensates especially superpolyamides, superpolyurethanes and superpolyesters.
  • Fig. 1A is a sectional view of a spinneret with a multiplicity of orifices according to Fig. 1;
  • Fig. 1B is a plan view of Fig. 1A;
  • Fig. 2 shows a second form of one orifice.
  • Fig. 2A is a sectional view of a spinneret with a multiplicity of orifices according to Fig. 2;
  • Fig. 2B is a plan view of Fig. 2A.
  • Example 1.32 orifices (one of which is shown in Fig. 1) spaced at regular intervals over a circumference of 30 mm. of diameter are pierced in a cup-shaped piece 1 of rustless steel containing 18% chromium and 8% nickel, of 2 mm. thickness.
  • the piercing is done in such a way that each of these orifices has the form represented in Fig. 1, i. c. it is composed of a cylindrical part2 united directly to a coaxial truncated conical part 3 intended for reception of the product to be spun.
  • the cylindrical part 2 having a diameter of 0.08 is 0.06 mm. in height.
  • the angle between the sides of the truncated conical part 3 is 35 These spinnerets are particularly well suited to spinning a solution of cellulose acetate in acetone.
  • Example 2.-l8 orifices (one of which is shown in Fig. 2) spaced at regular intervals over a circumference of 32 mm. diameter are pierced in a disc 1* of special steel containing 21% chromium, 7% nickel and 0.4% titanium, of 6 mm. thickness.
  • This piercing is done in such a way that each of these orifices has the form shown in Fig. 2, i. c. it comprises a cylindrical part 2 joined through the intermediary of a coaxial truncated conical part 4 to a truncated conical part 3 having the same axis, intended for the reception of the product to be spun.
  • the cylindrical part 2 of a diameter of 0.18 mm. is 0.15 mm. in height.
  • the truncated conical part 3 whose entry base diameter is 3.3 mm. has an angle between the sides of 25.
  • the truncated conical part 4 joining the cylindrical part 2 to the truncated conical part 3- is 0.40 mm. in height.
  • a spinneret of the character described comprising a disk having flat and unobstructed inner and outer surfaces disposed parallel to each other, the said disk being of a uniform thickness throughout its area greater than 1.5 mm. and beingbored with a multiplicity of orifices extending entirely throughthe said disk and spaced' from each other, the said orifices being of duplicate formation and each consisting of a short cylindrical outer end portion of small diameter leading from the outer surfaceof the disk and the height of which is less than A of the thickness of the disk, 21 main portion of inverted truncated conical formation extending downwardly from the said inner surface in concentric relation to the said cylindrical outer end portion for more than of the thickness of the said disk and at its lower end being of appreciably greater diameter than the diameter of the cylindrical outer end portion, the angle between the sides of said main portion being between about 15 and 60 and the length of said main portion being greater than its largest diameter, and another inverted conical portion connecting said main portion with the inner end of the cylindrical portion the length of which is greater than that of 3 the

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US274266A 1951-11-08 1952-02-29 Spinnerets Expired - Lifetime US2742667A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1044906T 1951-11-08

Publications (1)

Publication Number Publication Date
US2742667A true US2742667A (en) 1956-04-24

Family

ID=9591343

Family Applications (1)

Application Number Title Priority Date Filing Date
US274266A Expired - Lifetime US2742667A (en) 1951-11-08 1952-02-29 Spinnerets

Country Status (6)

Country Link
US (1) US2742667A (en(2012))
BE (1) BE514770A (en(2012))
CH (1) CH303630A (en(2012))
FR (1) FR1044906A (en(2012))
GB (1) GB731849A (en(2012))
NL (2) NL87168C (en(2012))

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2838365A (en) * 1955-12-21 1958-06-10 Eastman Kodak Co Dry spinning process
US2971219A (en) * 1956-08-14 1961-02-14 Du Pont Mixer distribution plate
US3001230A (en) * 1959-01-29 1961-09-26 Eltherma A G Spinnerette nozzles
US3003846A (en) * 1956-08-23 1961-10-10 British Celanese Manufacture of artificial filamentary material
US3006028A (en) * 1959-05-25 1961-10-31 Du Pont Spinning apparatus
US3017789A (en) * 1958-11-26 1962-01-23 Du Pont Spinneret production
US3075241A (en) * 1955-03-08 1963-01-29 Schiesser Ag Trikotfabriken Multiple hole spinning nozzle and process of manufacture
US3175339A (en) * 1956-08-09 1965-03-30 Fmc Corp Conjugated cellulosic filaments
US3210451A (en) * 1960-12-01 1965-10-05 Celanese Corp Spinnerettes
US3293696A (en) * 1963-07-24 1966-12-27 Snia Viscosa Special spinnerets for obtaining yarns of synthetic linear polymers having high regularity of count and of dyability
US3303530A (en) * 1965-01-13 1967-02-14 Du Pont Spinnerette
US3537135A (en) * 1964-01-09 1970-11-03 Celanese Corp Spinning apparatus
US3596312A (en) * 1970-02-10 1971-08-03 Koei Ohmatsu Apparatus for producing synthetic resin fibers utilizing centrifugal force
US3628140A (en) * 1969-11-06 1971-12-14 Coulter Electronics Scanning element and aperture wafer for electronic particle counting and sizing apparatus
US3925525A (en) * 1973-08-10 1975-12-09 Celanese Corp Spinning method
US4679998A (en) * 1984-11-15 1987-07-14 E. I. Du Pont De Nemours And Company Spinneret having groups of orifices with various interorifice spacing
US5259753A (en) * 1988-11-18 1993-11-09 E. I. Du Pont De Nemours And Company Spinneret capillaries
WO1994012703A1 (en) * 1992-12-03 1994-06-09 The Dow Chemical Company Method for spinning a polybenzazole fiber
US5330348A (en) * 1992-08-05 1994-07-19 E. I. Du Pont De Nemours And Company Spinneret for the production of hollow filaments
WO1997041284A1 (de) * 1996-04-29 1997-11-06 Akzo Nobel N.V. Verfahren zur herstellung cellulosischer formkörper

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1492594A (en) * 1921-08-26 1924-05-06 American Cellulose & Chemical Spinning jet or nozzle for the manufacture of artificial silk, etc.
US2211946A (en) * 1938-05-12 1940-08-20 Du Pont Spinnerette
US2266363A (en) * 1938-11-10 1941-12-16 Du Pont Apparatus for the production of filaments
FR878935A (en(2012)) * 1940-08-30 1943-02-19
US2341555A (en) * 1939-01-05 1944-02-15 Baker & Co Inc Extrusion device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1492594A (en) * 1921-08-26 1924-05-06 American Cellulose & Chemical Spinning jet or nozzle for the manufacture of artificial silk, etc.
US2211946A (en) * 1938-05-12 1940-08-20 Du Pont Spinnerette
US2266363A (en) * 1938-11-10 1941-12-16 Du Pont Apparatus for the production of filaments
US2341555A (en) * 1939-01-05 1944-02-15 Baker & Co Inc Extrusion device
FR878935A (en(2012)) * 1940-08-30 1943-02-19

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3075241A (en) * 1955-03-08 1963-01-29 Schiesser Ag Trikotfabriken Multiple hole spinning nozzle and process of manufacture
US2838365A (en) * 1955-12-21 1958-06-10 Eastman Kodak Co Dry spinning process
US3175339A (en) * 1956-08-09 1965-03-30 Fmc Corp Conjugated cellulosic filaments
US2971219A (en) * 1956-08-14 1961-02-14 Du Pont Mixer distribution plate
US3003846A (en) * 1956-08-23 1961-10-10 British Celanese Manufacture of artificial filamentary material
US3017789A (en) * 1958-11-26 1962-01-23 Du Pont Spinneret production
US3001230A (en) * 1959-01-29 1961-09-26 Eltherma A G Spinnerette nozzles
US3006028A (en) * 1959-05-25 1961-10-31 Du Pont Spinning apparatus
US3210451A (en) * 1960-12-01 1965-10-05 Celanese Corp Spinnerettes
US3293696A (en) * 1963-07-24 1966-12-27 Snia Viscosa Special spinnerets for obtaining yarns of synthetic linear polymers having high regularity of count and of dyability
US3537135A (en) * 1964-01-09 1970-11-03 Celanese Corp Spinning apparatus
US3303530A (en) * 1965-01-13 1967-02-14 Du Pont Spinnerette
US3628140A (en) * 1969-11-06 1971-12-14 Coulter Electronics Scanning element and aperture wafer for electronic particle counting and sizing apparatus
US3596312A (en) * 1970-02-10 1971-08-03 Koei Ohmatsu Apparatus for producing synthetic resin fibers utilizing centrifugal force
US3925525A (en) * 1973-08-10 1975-12-09 Celanese Corp Spinning method
US4679998A (en) * 1984-11-15 1987-07-14 E. I. Du Pont De Nemours And Company Spinneret having groups of orifices with various interorifice spacing
US5259753A (en) * 1988-11-18 1993-11-09 E. I. Du Pont De Nemours And Company Spinneret capillaries
US5330348A (en) * 1992-08-05 1994-07-19 E. I. Du Pont De Nemours And Company Spinneret for the production of hollow filaments
WO1994012703A1 (en) * 1992-12-03 1994-06-09 The Dow Chemical Company Method for spinning a polybenzazole fiber
WO1997041284A1 (de) * 1996-04-29 1997-11-06 Akzo Nobel N.V. Verfahren zur herstellung cellulosischer formkörper

Also Published As

Publication number Publication date
BE514770A (en(2012))
GB731849A (en) 1955-06-15
FR1044906A (fr) 1953-11-23
NL173016C (nl)
CH303630A (fr) 1954-12-15
NL87168C (en(2012))

Similar Documents

Publication Publication Date Title
US2742667A (en) Spinnerets
US2936482A (en) Spinneret assembly
US3188689A (en) Spinneret assembly
US2737831A (en) Process for making a spinneret
GB318631A (en) Improvements in or relating to process of and apparatus for the manufacture of artificial filaments and the like
US3340571A (en) Spinneret for making hollow filaments
US2341555A (en) Extrusion device
US3303530A (en) Spinnerette
US2677148A (en) Spinneret
US2703433A (en) Spinneret for the manufacture of staple fiber filaments
US2465408A (en) Method and apparatus for spinning artificial fibers
US2387791A (en) Cellulose acetate yarn and process
IE39548B1 (en) Crimped yarns their production
GB709599A (en) Improvements in spinnerets for extruding artificial filamentary materials
US2211946A (en) Spinnerette
US2051861A (en) Spinneret
US2798252A (en) Spinnerette
US3181201A (en) Spinnerette for the production of composite threads
US3579625A (en) Process for forming trilobal yarns
JPS61289110A (ja) 中空糸用紡糸口金
US2914802A (en) Spinning nozzles
US2905968A (en) Viscose spinning device
KR100270441B1 (ko) 중공섬유제조용 방사구금
US2932851A (en) Spinning jet and process of using same
US2362277A (en) Spinnerette