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US2728629A - Process for the treatment of synthetic threads - Google Patents

Process for the treatment of synthetic threads Download PDF

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Publication number
US2728629A
US2728629A US196689A US19668950A US2728629A US 2728629 A US2728629 A US 2728629A US 196689 A US196689 A US 196689A US 19668950 A US19668950 A US 19668950A US 2728629 A US2728629 A US 2728629A
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United States
Prior art keywords
threads
liquid
sheet
receptacle
bath
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
US196689A
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English (en)
Inventor
Blomberg Barend Jan
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.)
Akzona Inc
Original Assignee
American Enka Corp
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 American Enka Corp filed Critical American Enka Corp
Application granted granted Critical
Publication of US2728629A publication Critical patent/US2728629A/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/08—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating from outlets being in, or almost in, contact with the textile material
    • 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
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/04—Supporting filaments or the like during their treatment
    • D01D10/0436—Supporting filaments or the like during their treatment while in continuous movement
    • D01D10/0463—Supporting filaments or the like during their treatment while in continuous movement the filaments being maintained parallel

Definitions

  • PROCESS FOR THE TREATMENT OF SYNTHETIC THREADS Filed NOV. 20, 1950 INVENTOR ATTORNEY 2,728,629 Patented Dec. 27, 1955 PROCESS FOR THE TREATMENT OF SYNTHETIC THREADS Barend Jan Blomberg, Velp, Netherlands, assignor to American Enka Corporation, Enka, N. C., a corporation of Delaware Application November 20, 1950, Serial No. 196,689
  • This invention relates to an improved process for the treatment of synthetic threads, and more particularly to a continuous liquid treatment of a linearly moving sheet of spaced parallel threads within an open receptacle.
  • a viscose solution is forced through a plurality of spinnerets into a common coagulating bath and the thus freshly formed threads are conducted to aftertreatment baths for further regeneration, purification, finishing and drying, all as one continuous operation.
  • One of the most practical and economical methods of effecting these aftertreatments is to pass the threads in parallel, in what is commonly referred to as sheets, through open troughs or receptacles, containing the required treating liquids.
  • the spacing between successive threads is usually kept to an absolute minimum, while the sheet of threads is usually guided immediately underneath the level, and near the surface of the liquid in the treating receptacle in order to reduce to a minimum the number of changes of thread direction and facilitate the threading-up and maintenance operations.
  • This wave motion is undesirable, especially in the manufacture of viscose rayon threads, for several reasons.
  • the waves produce variations in the thread tension and stretch, thereby introducing a non-uniformity of treating conditions.
  • a non-uniform mixing of treating liquids is produced, especially with counter-current flow, which gives rise to a further non-uniformity of treating conditions.
  • liquid is admitted or removed at the ends of the receptacles, a regular rate of supply and discharge is rendered impossible.
  • lt is contemplated, according to this invention, to add to the open receptacle a wave damping material of such a shape that it possesses a large surface area relative to its volume but also has suicient openings to permit the ready although tortuous flow of liquid therethrough.
  • Another object of this invention is to treat a plurality of moving spaced parallel threads in an open receptacle containing a liquid whose surface is less turbulent and freer from wave motion than heretofore has been possible.
  • lt is a still further object of this invention to provide an improved method for the continuous liquid after-treatment of a plurality of spaced parallel freshly spun viscose rayon threads moving in a horizontal direction near the surface of the liquid within an open receptacle.
  • Figure l is a longitudinal view in vertical section of one open receptacle constructed in accordance with this invention.
  • Figure 2 is a view in transverse section taken on line 2-2 of Figure l.
  • a at sheet of parallel threads 10 is shown passing linearly in a horizontal direction through an open receptacle gen- However, with a sheet of threads travelling just under erally indicated at 11.
  • This receptacle 11 is composed of two side walls 12, a front end wall 13, a rear end wall 14 and a bottom 15.
  • the receptacle 11 is open at its top to permit free access at both sides thereof.
  • a series of guiding rods it? and l? are removablyl attached to the side walis i2 or receptacle 11 so that they extend in a direction transverse to the direction of thread travel.
  • the guiding rods 1*? function to support the threads it) in a horizontal manner and preventY them from sagging and coming ,in Contact with a wave damping material 2d to be hereinafter more fully described.
  • the guiding rods 18 act to press therthreads into contact with the bath 17 at, or just below, the surface thereof.
  • Rear end wall i4 is rounded and polished on its top edge 21 in the same manner as the top edge 16 of front end wall 13.
  • combs may be used in lieu of the thread guiding edges 16 and 21. Polished edge 21 permits the threads if' to leave the bath with a minimum of friction and be in readiness for further aftertreatments in similarly constructed receptacles or for drying and collecting.
  • a spillway 22 is provided adjacent and parallel to rear end wallV 14.
  • the top edge 23 of this spillway 22 is about even with the horizontal plane formed between guiding rods 1S and 19. This maintains a liquid level of the bath 17 just above the horizontal path of threads it).
  • Bath 17 is continuously circulated by pumping the same into conduit 24 and withdrawing it through conduit 25 as it overflows spillway 22.
  • the adit and exit conduits can be reversed.
  • the receptacle 11 is substantially iilled with a wave damping material 20 mentioned above which can consist of a variety of substances as long as they are suiciently corrosion resistant. Moreover, they should have a large surface area in proportion to the volume they occupy while readily permitting the tortuous liow of liquid through the mass of particles. Filling materials that fultill these qualifications and are particularly well suited for the purpose of inhibiting or damping waves or turbulence at the surface of the liquid are balls with or without holes, and Raschig rings, manufactured from porcelain, ceramic substances, glass or even lead, and having diameters approXimatei-y 5, l0, l or 2O mm.
  • the receptacle can be filled with a great number of these particles, coils, rods, sieves, and the like, and yet contain a large quantity of treating liquid whichV can be heated if Vdesired and flow readily in the longitudinal direction of the receptacle even when the receptacle is substantially filled with the wave damping material.
  • the material does restrain the movement of the liquid so strongly that it does not form waves as a result of the rapid movement of the threads through the bath.
  • the sheet of threads is passed from one end of the container to the other in a substantially horizontal direction under a minimum of friction and with only a slight deiiection in a horizontal plane at the time the sheet enters the receptacle and aty the timeit leaves it.
  • the arrangement of the guiding bars may be varied to a wide degree as long as they act to maintain the sheet of threads in a straight line, i. e., without sagging, slightly below the surface of the bath liquid and slightly above the level of damping material.
  • the bars may be used as stripping guides which will accelerate and improve the aftertreatrnents, particularly with respect to the washing operation.
  • the lower set acting as the sheet support may be put in position first and after the machine consisting of several similar receptacles has been initially threaded-up, the upper ⁇ set of bars may be fastened in place to gently urge the sheet of threads into the liquid at the surface thereof.
  • Fresh treating liquid is continuously admitted at the left of the receptacle and removed atthe right. T he frictional effect of the moving threads carries treating liquid to the right at the top of the receptacle, but no surface waves are encountered because the particles allow a steady return flow from right to left and damp out any uneven fluctuation in the rate of flow. A high degree of uniformity of treating conditions is thereby obtained.
  • the essential part of this invention resides in the elimination of surface waves from the receptacle by means of the material within the receptacle.
  • the associated equipment of the thread treating system therefore, does not affect the manner in which this invention improves the treating conditions except in the way in which they tend to produce wave motion.
  • receptacles can be used that are approximately l meter in width and 4 to 5 meters in length.
  • the spacing between the thread may vary from 5 mm., for tine denier threads, to l5 mm. for the heavier deiner threads used for tire production.
  • a process for the liquid after-treatment of a sheet of spacedv separate parallel synthetic threads that comprises, establishing a liquid treating bath having a substantial depth of liquid therein, passing said sheet of threads linearly and substantially horizontally through said bath immediately below the upper surface of the bath and immediately above the upper surface of a layer of substantial thickness of a wave damping material comprising a large number of inert solid bodies disposed in the liquid bath below the path of travel of said sheet of threads, thereby damping the surface wave formation that would otherwise occur as a result of the movement of the sheet of threads through the liquid bath.
  • a process for the continuous liquid treatment of a sheet of moving spaced separate parallel synthetic threads that comprises, passing the sheet linearly and substantially horizontally through a liquid treating bath of substantial depth While supporting the sheet at spaced areas, maintaining the moving sheet in a substantially horizontal plane just below the upper surface of the bath and just above the upper surface. of a mass of substantial thick- 5 ness of a wave damping material comprising a large number of inert solid bodies disposed in the liquid bath and extending upwardly to within a few millimeters of the moving sheet of threads, thereby damping the surface wave formation that would otherwise occur as a result of the movement of the sheet of threads through the liquid bath.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
US196689A 1949-12-13 1950-11-20 Process for the treatment of synthetic threads Expired - Lifetime US2728629A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL292034X 1949-12-13

Publications (1)

Publication Number Publication Date
US2728629A true US2728629A (en) 1955-12-27

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US196689A Expired - Lifetime US2728629A (en) 1949-12-13 1950-11-20 Process for the treatment of synthetic threads

Country Status (7)

Country Link
US (1) US2728629A (de)
BE (1) BE498121A (de)
CH (1) CH292034A (de)
DE (1) DE919600C (de)
FR (1) FR1028125A (de)
GB (1) GB691204A (de)
NL (1) NL68127C (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3048504A (en) * 1958-01-23 1962-08-07 Nat Steel Corp Method and apparatus for treating strip material
US3058332A (en) * 1958-09-09 1962-10-16 Phrix Werke Ag Fa Apparatus for the wet-treatment of fibers and the like
US3066006A (en) * 1960-04-29 1962-11-27 American Cyanamid Co Method of processing a tow
US3100306A (en) * 1958-05-28 1963-08-13 Dow Chemical Co Liquid application to running lengths of fibers in superimposed baths
US6306214B1 (en) * 1999-02-03 2001-10-23 The I.C.E. Group Molten metal immersion bath for wire fabrication

Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US338096A (en) * 1886-03-16 Island
US388078A (en) * 1888-08-21 Machine for tempering metal wires and strips
US443464A (en) * 1890-12-23 Process of manufacturing steel-coated wire
US452501A (en) * 1891-05-19 Machine for washing wool or similar fibers
US499170A (en) * 1893-06-06 Emanuel keuser
US608194A (en) * 1898-08-02 Liam bault
US663452A (en) * 1900-04-14 1900-12-11 Emile Maertens Machine for washing, rinsing, or chemically treating wool.
FR319342A (fr) * 1902-03-10 1902-11-10 Cadgene Procédé de décoration des tissus écrus légers de soie pure ou mélangée, et de coton pur et mélangé
US1875984A (en) * 1926-06-28 1932-09-06 Norton Co Ltd Sir James Farmer Mercerizing machine
US1893197A (en) * 1930-05-31 1933-01-03 Samcoe Holding Corp Method of and apparatus for treating tubular textile fabrics
US2041338A (en) * 1936-05-19 Continuous rayon spinning and processing machine
US2045755A (en) * 1932-03-17 1936-06-30 Samcoe Holding Corp Method of treating fabrics
US2209950A (en) * 1936-03-27 1940-08-06 Chatillon Italiana Fibre Apparatus for treating artificial yarns
US2251931A (en) * 1938-01-28 1941-08-12 Walter J Gundelfinger Method of and apparatus for continuous processing of rayon threads
US2369809A (en) * 1943-07-30 1945-02-20 American Viscose Corp Filamentary guide
US2516268A (en) * 1944-09-07 1950-07-25 American Viscose Corp Apparatus for the treatment of filaments in continuous bundles with liquid
US2520594A (en) * 1947-03-13 1950-08-29 Oscar Kohorn & Co Ltd Apparatus for the liquid treatment of thread
US2533167A (en) * 1947-06-27 1950-12-05 American Reenforced Paper Co Method and apparatus for applying adhesive to fibrous webs
US2555065A (en) * 1947-03-10 1951-05-29 Ici Ltd Method of treating a tow of filaments or threads
US2587619A (en) * 1946-04-23 1952-03-04 Beaunit Mills Inc Process and apparatus for the production of synthetic thread

Patent Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2041338A (en) * 1936-05-19 Continuous rayon spinning and processing machine
US388078A (en) * 1888-08-21 Machine for tempering metal wires and strips
US443464A (en) * 1890-12-23 Process of manufacturing steel-coated wire
US452501A (en) * 1891-05-19 Machine for washing wool or similar fibers
US499170A (en) * 1893-06-06 Emanuel keuser
US608194A (en) * 1898-08-02 Liam bault
US338096A (en) * 1886-03-16 Island
US663452A (en) * 1900-04-14 1900-12-11 Emile Maertens Machine for washing, rinsing, or chemically treating wool.
FR319342A (fr) * 1902-03-10 1902-11-10 Cadgene Procédé de décoration des tissus écrus légers de soie pure ou mélangée, et de coton pur et mélangé
US1875984A (en) * 1926-06-28 1932-09-06 Norton Co Ltd Sir James Farmer Mercerizing machine
US1893197A (en) * 1930-05-31 1933-01-03 Samcoe Holding Corp Method of and apparatus for treating tubular textile fabrics
US2045755A (en) * 1932-03-17 1936-06-30 Samcoe Holding Corp Method of treating fabrics
US2209950A (en) * 1936-03-27 1940-08-06 Chatillon Italiana Fibre Apparatus for treating artificial yarns
US2251931A (en) * 1938-01-28 1941-08-12 Walter J Gundelfinger Method of and apparatus for continuous processing of rayon threads
US2369809A (en) * 1943-07-30 1945-02-20 American Viscose Corp Filamentary guide
US2516268A (en) * 1944-09-07 1950-07-25 American Viscose Corp Apparatus for the treatment of filaments in continuous bundles with liquid
US2587619A (en) * 1946-04-23 1952-03-04 Beaunit Mills Inc Process and apparatus for the production of synthetic thread
US2555065A (en) * 1947-03-10 1951-05-29 Ici Ltd Method of treating a tow of filaments or threads
US2520594A (en) * 1947-03-13 1950-08-29 Oscar Kohorn & Co Ltd Apparatus for the liquid treatment of thread
US2533167A (en) * 1947-06-27 1950-12-05 American Reenforced Paper Co Method and apparatus for applying adhesive to fibrous webs

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3048504A (en) * 1958-01-23 1962-08-07 Nat Steel Corp Method and apparatus for treating strip material
US3100306A (en) * 1958-05-28 1963-08-13 Dow Chemical Co Liquid application to running lengths of fibers in superimposed baths
US3058332A (en) * 1958-09-09 1962-10-16 Phrix Werke Ag Fa Apparatus for the wet-treatment of fibers and the like
US3066006A (en) * 1960-04-29 1962-11-27 American Cyanamid Co Method of processing a tow
US6306214B1 (en) * 1999-02-03 2001-10-23 The I.C.E. Group Molten metal immersion bath for wire fabrication

Also Published As

Publication number Publication date
GB691204A (en) 1953-05-06
CH292034A (de) 1953-07-31
BE498121A (de)
FR1028125A (fr) 1953-05-19
NL68127C (de)
DE919600C (de) 1954-10-28

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