US2555065A - Method of treating a tow of filaments or threads - Google Patents

Method of treating a tow of filaments or threads Download PDF

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Publication number
US2555065A
US2555065A US2246A US224648A US2555065A US 2555065 A US2555065 A US 2555065A US 2246 A US2246 A US 2246A US 224648 A US224648 A US 224648A US 2555065 A US2555065 A US 2555065A
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US
United States
Prior art keywords
trough
tow
treating
liquid
filaments
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
US2246A
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English (en)
Inventor
Robin H K Thomson
William E Tetlow
Archibald M Mcdonald
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.)
Imperial Chemical Industries Ltd
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Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
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Publication of US2555065A publication Critical patent/US2555065A/en
Anticipated expiration legal-status Critical
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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
    • D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/04—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments
    • 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
    • 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
    • D01D10/0472—Supporting filaments or the like during their treatment while in continuous movement the filaments being supported on endless bands
    • 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
    • D01F4/00—Monocomponent artificial filaments or the like of proteins; Manufacture thereof

Definitions

  • the present invention relates to a method of treating atow of filaments or threads in a limited space.
  • the object of the present invention is to proyidea simple, and eflicient method of treating under non-tensioning conditions a continuous trayelling tow of filaments or threads by immersion in a treating liquid, particularly one having a specific gravity approaching that of said tow, for relatively long periods of time.
  • the method of treating a continuous tow of filaments by immersion in a treating liquid for a relatively long period of time comprises providing a hori- -zohtal ring-trough rotatable about a vertical axis, passing treating liquid in a continuous manner through said ring-trough and rotating, the ring-trough with substantially the same directional speed as the mean circular velocity attained by the said treating liquid in said ringtrough, inducing a vibratory motion substantially radial to the centre of the rotating ring-trough in thetow directly above the treating liquid, per- 1 mitting the thus treated tow to fall into the treating liquid and to form itself therein into, folds on the floor of the rotatingtrough below the region immediately above the 1iquid from which the tow enters the liquid and also regulating the speed of rotation of the ring-trough so that on withdrawing the tow from out of the treating liquid at any desired distance away from the said region measured along the circumference of the ringetrough the said tow has
  • the tow can be given the said vibratory motion by passing it through a guide positioned vertically above the treating liquid and having a reciprocating movement radial to the centre of the rotating ring-trough.
  • the tow undergoing treatment should be of greater density than that of the treating liquid in the rotatingring-trough. It sometimes ,becomes necessary therefore to give the tow a preliminary treatment before it is permitted to enter a particulartreating liquid in a rotating ring-trough to make the tow of greater density than that of the treating liquid.
  • the tow may be immersed in a bath containing a particular treating liquid of a rotating ring-trough before it is allowed to enter the said treating liquid in arotating ring-trough.
  • the tow of filaments or threads can be any suitable material.
  • the rotatable ring-trough has a perforated base and is partly immersed in a larger and static trough which is provided with means for maintaining a constant level of liquid therein.
  • the ring-trough is supplied continuously with treating-liquid delivered at such a rate as to make up for that which leaves it by passing through the perforations at its base.
  • the treating-liquid is delivered from above and preferably close to the inner wall of the ring-trough.
  • the one or more points of delivery of the treating-liquid are not connected with the ring-trough.
  • any tendency towards crystallisation of the treating-liquid is lessened and the possibility of maintaining the treating-liquid at a constant predetermined high temperature throughout the treatment of the tow is increased.
  • the treating-liquid is pumped in and out of the rotating ring-trough at such a rate that the liquid is substantially static i. e. without relative motion, with respect to the rotating ringtrough. It may be desirable to provide one or more baffles between the inlet and outlet devices provided for the treating-liquid in the ringtrough.
  • Fig. 1 is a front elevation of apparatus suitable for carrying out the method of the invention
  • Fig. 2 is a side elevation in direction of arrow A in Fig. 1
  • Fig. 3 is a plan
  • Fig. 4 is a section of that part of the apparatus in which the tow is treated in the first ring-trough
  • Fig. 5 is a section of that part of the apparatus in which the tow is treated in the second ringtrough.
  • Example A matured caustic soda solution of groundnut globulin prepared from a solution containing 25 parts peanut globulin, 1.25 parts sodium hydroxide, 1.0'part sodium sulphite and 72.75 parts water is extruded into a coagulating bath containing 200 gm./1 sodium sulphate and 20 gm./1 sulphuric acid.
  • the resulting tow of filaments is taken up on godets having a peripheral speed of 30 metres per minute and stretched by passing on to godets having a peripheral speed of 45 metres per minute.
  • the tow I is then led under tension to a godet 2 situated vertically above the'centre line of the trough of a ring-trough 3, through a reciprocating spacing device 4 at least 3 feet above the surface of the liquor in the trough 3, and so into the trough in which the fibre is deposited in a zig-zag manner.
  • This ring-trough 3 consists of a solid centre section 2 feet in diameter with a trough 6 inches wide and 3 inches deep outside but integrally joined to it and is made of mild steel.
  • This unit has a base of wire gauze 5 and revolves in a circular trough 6 3 feet 4 inches external diameter, 1 foot 7 inches internal diameter and 6 inches deep, also of mild steel fitted with an adjustable weir I so that the height of liquor in the trough may be varied at will.
  • a solution of sodium sulphate, saturated at C. is run through a pipe 8 to the centre of the centre section of the ring-trough at 15 C.
  • the tow sinks on to the wire gauze base 5 of the trough and is carried round with the trough which revolves once every 7 minutes.
  • the time of immersion of the tow in the treating-liquid can be 7% minutes.
  • the tow is taken up not less than 3 inches from the fibre inlet and then stretched between two godets (9 and I0) Whose peripheral speeds are 35 and 52 metres per minute respectively.
  • the tow passes over a godet II placed vertically above the centre line of the outer trough of a ring-trough consisting of two concentric troughs (I2 and I3), each 6 inches wide by 4 inches deep.
  • the outside diameter of the outer trough I2 is 4 feet and the inside diameter of the inside trough I3 is 2 feet.
  • This ringtrough is made of mild steel and is lead lined.
  • the tow enters the outer trough I2 in a zig-zag manner through a reciprocating spacing device I4 placed at least 3 feet above the liquid level in the trough.
  • the treating liquor at 50 C., which consists of a solution of sodium sulphate saturated at 60 C.
  • containing 1%% formaldehyde at pH 5 enters the outer trough I2 through a distributing pipe I5 5 /2 inches long which is arranged along a diameter of the trough and at least 6 inches from the fibre inlet, and is removed by a constant level automatic syphon I6 drawing from the space between the fibre inlet and outlet.
  • the rate of rotation of the ringtrough is once in ten minutes and hence the time of immersion in the treating-liquid can be 10 minutes.
  • the tow is picked up over a godet l'I arranged so that the fibre line coincides with a diameter of the trough and that the distance between the fibre inlet and take up is at least 8 inches.
  • the tow is stretched 50 per cent between the two godets (I1 and I8) whose peripheral speeds are 43 and 62 metres/minute, while the tow is immersed in a small rectangular trough I9 2 feet long, 9 inches deep, 3 inches wide.
  • the liquor used in the trough I9 is the same as that used in the inner trough I3 and. is at 90 C.
  • the tow enters the inner trough I3 in a zig-zag manner over the godet I8 placed over the centre line of the inner trough I3 and through a reciprocating spacing device 20 at least 3 feet above the liquid level in the trough.
  • is by means of four pipes at right angles feeding to the inner wall of the trough I3.
  • the treating-liquor sodium sulphate saturated at C., containing 1 formaldehyde and 20% sulphuric acid by volume, is removed by a constant level automatic syphon 22 drawing from the space between the fibre inlet and take up.
  • the temperature of the treating-liquor is 70 C.
  • the tow is taken up over a godet 23 at least 8 inches from the inlet and washed and dried by any known method.
  • a method for treating without tangling a continuous tow of artificial wet spun protein filaments by immersion thereof in a treating liquid for a relatively long period of time comprising the steps of continuously flowing the treating liquid through the trough portion of a horizontally disposed, rotatable ring trough, rotating said trough in a horizontal plane about its central axis at substantially the same velocity as the mean circular velocity attained by said treating liquid so that said treating liquid and trough are substantially free from velocity gradients with respect to each other, depositing said tow in said ring trough radially thereof 5 6 and in a zig-zag manner, and withdrawing the thus treated tow after the desired period of REFERENCES CITED treatment h s e p
  • the following references are of record in the 2. The method of clalm 1 wherein said art1- fil of this t t;

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Treatment Of Fiber Materials (AREA)
US2246A 1947-03-10 1948-01-14 Method of treating a tow of filaments or threads Expired - Lifetime US2555065A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB269140X 1947-03-10

Publications (1)

Publication Number Publication Date
US2555065A true US2555065A (en) 1951-05-29

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US2246A Expired - Lifetime US2555065A (en) 1947-03-10 1948-01-14 Method of treating a tow of filaments or threads

Country Status (6)

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US (1) US2555065A (en])
BE (1) BE481070A (en])
CH (1) CH269140A (en])
FR (1) FR961371A (en])
GB (1) GB623460A (en])
NL (1) NL70963C (en])

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2695509A (en) * 1950-10-12 1954-11-30 Alexander Smith Inc Apparatus for setting the twist in yarn
US2720443A (en) * 1950-03-21 1955-10-11 Ici Ltd Method and apparatus for treating a tow of filaments or threads in a limited space
US2728629A (en) * 1949-12-13 1955-12-27 American Enka Corp Process for the treatment of synthetic threads
US3064328A (en) * 1960-09-08 1962-11-20 Lees & Sons Co James Yarn feeding and storage apparatus
US4006612A (en) * 1974-12-16 1977-02-08 Alfred Thies Apparatus for the wet processing of textile strands
US4207759A (en) * 1977-06-22 1980-06-17 Barriquand Machine, especially a dyeing machine, for pieces of fabric

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE505443A (en]) * 1950-08-28
ES2012861A6 (es) * 1988-10-14 1990-04-16 Clermont Jose Maria Serracant Maquina para el tratamiento fluidodinamico continuo de materias filiformes agrupadas.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB475350A (en) * 1936-03-05 1937-11-16 Ig Farbenindustrie Ag Improvements in the manufacture of artificial threads, fibres and like materials from cellulose solutions
US2149708A (en) * 1936-02-13 1939-03-07 Ig Farbenindustrie Ag Treatment of bundles of artificial fibers
US2251931A (en) * 1938-01-28 1941-08-12 Walter J Gundelfinger Method of and apparatus for continuous processing of rayon threads

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2149708A (en) * 1936-02-13 1939-03-07 Ig Farbenindustrie Ag Treatment of bundles of artificial fibers
GB475350A (en) * 1936-03-05 1937-11-16 Ig Farbenindustrie Ag Improvements in the manufacture of artificial threads, fibres and like materials from cellulose solutions
US2251931A (en) * 1938-01-28 1941-08-12 Walter J Gundelfinger Method of and apparatus for continuous processing of rayon threads

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2728629A (en) * 1949-12-13 1955-12-27 American Enka Corp Process for the treatment of synthetic threads
US2720443A (en) * 1950-03-21 1955-10-11 Ici Ltd Method and apparatus for treating a tow of filaments or threads in a limited space
US2695509A (en) * 1950-10-12 1954-11-30 Alexander Smith Inc Apparatus for setting the twist in yarn
US3064328A (en) * 1960-09-08 1962-11-20 Lees & Sons Co James Yarn feeding and storage apparatus
US4006612A (en) * 1974-12-16 1977-02-08 Alfred Thies Apparatus for the wet processing of textile strands
US4207759A (en) * 1977-06-22 1980-06-17 Barriquand Machine, especially a dyeing machine, for pieces of fabric

Also Published As

Publication number Publication date
FR961371A (en]) 1950-05-11
NL70963C (en])
GB623460A (en) 1949-05-18
BE481070A (en])
CH269140A (de) 1950-06-30

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