US3231934A - Apparatus for the wet treatment of viscose yarns - Google Patents

Apparatus for the wet treatment of viscose yarns Download PDF

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Publication number
US3231934A
US3231934A US291387A US29138763A US3231934A US 3231934 A US3231934 A US 3231934A US 291387 A US291387 A US 291387A US 29138763 A US29138763 A US 29138763A US 3231934 A US3231934 A US 3231934A
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Prior art keywords
processing
roller
zones
yarns
zone
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US291387A
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English (en)
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Diotti Giacinto
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    • 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
    • D01D10/0445—Supporting filaments or the like during their treatment while in continuous movement using rollers with mutually inclined axes

Definitions

  • This invention relates to an improved spinning plant -In particular, the spinning plant according to this invention, allows all the treatments with liquids, as usually required for producing-a wholly processed and finished rayon viscose yarn: such as fixing, desulphurization, bleaching, a
  • the invention relates to spinning plants wherein a filament is continuously advanced, and undergoes a given number of processing steps by means of processing liquors.
  • aneconomical requirement that cannotbe deviated from isthe recovery of the processing liquors, that must be keptsuitably separated from one another, the more so as some of them would exert a mutually destructive action upon one another if mixed together.
  • the filaments are continuously advanced along substantially helical paths on devices ofdifferent type and are sprinkled with From the viewpoint of the adthis invention pertains to so called skew roller type,i.e.
  • the filaments are caused to travel along a helical path on the revolving rollers, with the pitch of the helix depending mainly on by the roller axesan-d on the roller spac-
  • the filaments are usually sprinkled with the processingliquors while they are 1 running around the main roller, ,i.e. the roller having .the
  • Thespinning plant which will be de- A spinning plant consisting of a main roller, and of one advancing roller onlywill be firstly described; however, 1t inust be understood that more than one advancing roller could be provided, in order to have as many filaments advancedat the same time on the same device.
  • a spinning plant having a plurality of ad vancing rollers, e.g. four, whereon as many filaments are advanced is disclosedin the U.S.Patent No. 2, 883,259.
  • the verysame principle canbe plant according to this invention;
  • n will usually consist of parallelarranged units, with one or more filaments advanced oneachfiunit.
  • filament it is meant here a tow made of a plurality of individual filaments that are being advanced parallely, and that may have been extruded all from the same spinneret, or from more spinnerets.
  • Each unit comprises a processing roller, and one or more advancing rollers, as well as members for guiding, and possibly the separation of filaments, when more than is conveyed by the filament.
  • a processing roller which consists of a plurality of zones, that follow axially one another along the roller, and that are designed at least partly, for a processing with a liquid.
  • Such zones may typically comprise three main processing areas with liquors, i.e. fixing, desulphuration, bleaching, each followed by a wash, and possibly a further treatment with a liquor, known as the finish.
  • a drying zone may be provided, which is not to be considered as a zone of processing with a liquid.
  • each zone wherein the filament is processed with a liquor is sprinkled with a corresponding bath or liquor, and a portion of each liquor is recovered by gravity in a container, or in a section of a collecting container, which will be called hereinafterthe trough.
  • a portion of each liquor flows toward the end of its zone, either owing to creeping and adhesion to the processing roller, or because it The liquor is collected at both ends of each zone so that not even a small fraction thereof may pass to adjacent zones, through openings in the roller walls, to which a suction as applied, so that the liquor is sucked and collected into pockets inside of the roller, and corresponding to each zone, means are provided for conveying the liquor from each zone to a suitable collecting channel.
  • the latter means preferably consists of a central cylindrical portion of the processing roller, which is subdivided into as many angular sectors as the liquors to be kept apart, and by which, together with the peripheral wall of the processing roller, an annular, cylin- -drical chamber is defined, and the partition walls, that extend radially across said annular chamber, by which the liquor sucked from each zone is conveyed, while the processing roller is revolving, toward an opening in the aforestated central cylindrical section of the roller, that leads into the sector of said section wherein the particular liquormust be collected.
  • the liquor is drained from its sector by a suction duct, and can be conveniently added to that portion of the wound spirally around said perforated surface.
  • helical is to be construed only as an approximate, not strictly geometric meaning, i.e. to design a path consisting of a succession of uniformly spaced turns, and a filament is routed on each helical path.
  • FIG. 1 is a perspective view of a cross-sectioned spinning unit according to the invention, fitted with one advancing roller only.
  • FIG. 2 is an axial longitudinal section of a processing roller as shown in the FIG. 1, together with a number of devices associated therewith.
  • FIG. 3 shows on a larger scaie a portion of the cylindrical shell of the processing roller, as shown in the FIG. 2.
  • FIG. 4 is a section taken on the line 4-4 of FIG. 2, i.e. in correspondence of a zone wherein the filament is processed with a liquor, of the processing roller only.
  • FIG. 5 is another section, taken on the line 55 of FIG. 2, i.e. in correspondence of the zone wherein the processing liquor is collected.
  • FIGS. 6 and 7 are sections similar to those of FIGS. 4 and 5, respectively taken on the lines 6-6 and 7-7 of PEG. 2, and corresponding to another processing liquor, and in particular to a wash.
  • FIG. 8 is a cross-sectional view of the drying zone.
  • FIG. 9 is a perspective view of a similar spinning unit, which is however fitted with a plurality (i.e. four) of advancing rollers 11a, 11b, 11c and 11d, whereon as many filaments are being advanced.
  • FIG. 10 is a cross-sectional view of the spinning unit as shown in the FIG. 9.
  • 10 is the processing roller and 11 is the corresponding advancing roller, while 12 is the filament.
  • the processing roller consists, when viewed from the periphery to the center, of an outer cylindrical shell 13, whereon the filaments rest, and of a cylindrical core 14, which is somewhat longer than the shell 13.
  • a number of partition walls 15a, 15b, 15c, 15d, 15c, 15 are located, perpendicularly to the roller axis, between the cylindrical core 14 and the shell 13.
  • the ends of the roller section whereon the filament is processed with liquors, are closed by two further partition walls 16 and 16'.
  • the drying zone is defined by the partition wall 16' and by the end wall 17. It follows that there are 7 zones wherein the filament is processed with liquor, and a drying zone, such zones being designated as follows:
  • the fixing zone 21 is the zone wherein the filament is washed after the fixing or setting 22 is the desulphurisation zone 23 is a washing zone after the desulphurisation 24 is the bleaching zone 25 is the washing zone after the bleaching 26 is the finishing zone 27 is the drying zone
  • a processing bath e.g. for convenience, of the desulphurisation liquor, which is applied to the zone 22.
  • a portion of such liquor is collected by gravity in the underlying zone of a trough 30 which is fitted with partition walls that are located substantially below the middlelines of the partition walls 15, and which is also equipped with a series of collecting pipes, as described in more detail later.
  • the small annular chambers 33 and 34 are outwardly defined by the partition walls 38 and 39, by which the desulphurisation liquor is prevented from flowing into the chambers 40 and 41, that correspond to the adjacent Washing zones 21 and 23.
  • the chamber 37 is subdivided into many sections by partition walls 42, 43, 44, 45 that are curved in the manner of a vane and that extend in an approximately radial direction.
  • the partition walls 42, 43 and 44 are respectively formed with the orifices while the partition wall 45 is solid. Then, the liquid which has entered the chamber 37, into any one of the spaces as defined by two adjacent partition walls, is lifted when the processing roller is revolving (in a clockwise direction, as in the FIG.
  • each partition wall 42, 43 and 44 by each partition wall 42, 43 and 44, and on attaining the corresponding orifice, it will fall down into the underlying sector, to be then engaged by the subsequent partition wall, and so on, until it comes into contact with the partition wall 45, wherein no orifice is present.
  • an orifice 49 is formed on the central core, near said partition wall 45.
  • the liquid When the top position is attained by said opening 49 during the rotation of same device, the liquid will flow through said opening into the corresponding sector 62 of the central cylindrical core 14.
  • Such sector extends longitudinally along the central cylindrical core 14, and the liquor will flow therealong to the leftwhen viewed as in FIG. 2-as an effect of the sucking action, that is applied as explained in more detail later, until a zone of core 14 that extends like a bracket outwardly of the outer shell 13, is encountered.
  • the sector 50 is formed with an orifice 52 opposite to said bracket like section 51 (see FIG. 5). The liquor is thus discharged through the orifice 52, and falls down into a compartment 53 of an outer cylindrical container 61.
  • the cylindrical container 61 is also fitted with a sucking duct 55.
  • the suction is adjusted in such a manner that the liquor cannot be forced into the orifice 55, but merely flows by gravity into the pipe 54.
  • the pipe 54 is connected with a further liquor recovery pipe (not shown) that is in turn connected with the piping 56 of the trough 30.
  • Each zone of processing with a liquid is fitted with a similar assembly, and one of the sectors 62, 63, 64, 65 of the central core 14 is assigned to each liquor which is to be kept separated from all others.
  • FIG. 8 IS a cross-sectional view of the drying zone 27, that comprises a perforated section 57, through which hot air is blown through a duct 58 and a cylindrical slide valve. Then, the air is discharged through the duct 60, together with the water vapour evolved from the filament which is being dried.
  • main roller 10 must be mounted on suitable bearings, and it must be equipped with a suitable drive, which however will be neither described nor shown in the drawing, since it is a matter of already well known components, with which all persons skilled in the art are throughly familiar and that does not form a part of the invention.
  • the advancing roller 11 is mounted on suitable bearings, which must be adjustable, to allow the roller to be located at the required distance from the main roller, and under the required inclination with respect thereto.
  • the advancing roller may be not directly driven, i.e. it could be caused to turn by the high count
  • FIG. 9 A further embodiment of the invention, wherein one main roller, having a design similar to that of the first embodiment, is associated with four advancing rollers 11a, 11b, 11c, and 11d, is shown in the FIG. 9, in a manner similar to that of FIG. 1.
  • Four filaments, which are all wound on the main roller, and respectively on one of advancing rollers, are processed at the same time on this device.
  • a spinning plant will consist of a number of units as shown in FIGS. 1 to 8 inclusive, or in FIG. '9, and that are parallel connected as shown in FIG. 10.
  • the means for producing the filaments that consist in a number of spinuerets, each provided with the means by which the viscose solution is supplied, and with a suitable coagulating bath, as well as with the godet wheel, nor the funnel and spinning bucket, wherein the processed filaments are collected in the form of a cake, and that might be of any suitable type areshown in the drawing.
  • a processing roller comprising an outer shell defining said outer surface and an inner cylindrical space, an inner shell coaxial to and extending along the axis of said outer shell through a pl-urality of said zones defining a core space, a plurality of circumferentially spaced partitions radially arranged in said inner shell to define a plurality of passages parallel to said axis in said core space, said outer shell having pairs of rows of orifices circumfercntia-lly arranged adjacent to the borders between said processing zones, transverse partitions lengthwise spaced between said outer and inner shells in the planes defined by said borders to define individual fluid collecting chambers about said inner
  • a processing roller comprising an outer cylindrical shell outwardly forming a processing surface including said zones in the length thereof, an inner shell co-axial to and forming a hollow cylindrical interspace with said outer shell, transverse partition walls in said intersp'ace in the planes including the borders between said zones to form individual collecting chambers circumferentially extended in said interspace and each located to correspond to an individual processing zone, said outer shell having circumferentially arranged rows A sashes;
  • a processing roller as defined in claim 2, wherein vane partitions are provided in said collecting chambers extending between said outer and inner shells for raising fluids collected in the lower portions of said chamber at the level of said orifices upon rotation of said roller for causing said fluids to progress from said chambers into said passages in said core space.
  • said processing roller comprises an inner shell axially extended outside an end portion of said roller, and axially and circumferentially spaced outlet openings in the extended part of said inner shell for selective exhaustion of individual fluids flowing from said individual passages into spaced individual collecting and recovery troughs located below said axially spaced outlet openings.
  • a processing roller comprising inner and outer co-axial shells defining a hollow cylindrical interspace thenebetween, said inner shell extetnding outside of said outer shell, said surface being formed by the outer face of said outer shell and a core space formed within said inner shell, transverse partitions located in said planes in said interspace to divide said interpace into individual collecting chambers each corresponding to one of said zones, said outer shell having rows of openings circumferentially arranged adjacent to said planes for communication of each zone with its corresponding chamber adjacent to
  • processing roller as defined in claim 6, wherein said processing zones and washing zones are alternately located lengthwise of said surface, and a plurality of passages formed in said inner shell leading to one passage therein and all chambers corresponding to all washing zones.
  • a drying zone is formed on said surface adjacent one end of said roller, opposite to the end outside of which said passages extend outside said roller, wherein said outer shell is perforated in said Zone, and wherein a transverse partition is arranged in the plane between said zone and the adjacent processing zone to separate the space inside said shell in said zone from the interspace and core space inside said adjacent zone, whereby a hot fluid supplied into said space inside said drying zone is caused to contact and act on yarns helically progressed from said adjacent zone about and along said drying zone.
  • a duct connected to a source of hot fluid is located at one end of said roller for supplying hot fluid into said space inside said drying zone.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US291387A 1962-07-12 1963-06-28 Apparatus for the wet treatment of viscose yarns Expired - Lifetime US3231934A (en)

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IT1395462 1962-07-12

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US3231934A true US3231934A (en) 1966-02-01

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US (1) US3231934A (xx)
AT (1) AT249248B (xx)
BE (1) BE634478A (xx)
CH (1) CH405595A (xx)
ES (1) ES289878A1 (xx)
GB (1) GB1044174A (xx)
NL (1) NL295198A (xx)
SE (1) SE304347B (xx)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4447941A (en) * 1981-05-11 1984-05-15 Escher Wyss Gmbh Dewatering roll of a wire press
US4607420A (en) * 1983-02-07 1986-08-26 Schwabische Huttenwerke Gmbh Roller for a machine for manufacturing endless tape material
US11970788B2 (en) * 2013-10-29 2024-04-30 Braskem America, Inc. System and method of dosing a polymer mixture with a first solvent, device, system and method of extracting solvent from at least one polymeric yarn, system and method of mechanical pre-recovery of at least one liquid in at least one polymeric yarn, and continuous system and method for producing at least one polymeric yarn

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1223245A (en) * 1916-01-17 1917-04-17 Charles Biesel Dehydrator.
US2521748A (en) * 1947-12-26 1950-09-12 Ind Rayon Corp Method for the manufacture of regenerated cellulose materials
US2521724A (en) * 1946-09-25 1950-09-12 American Can Co Counter mechanism for can covers
US2539980A (en) * 1947-04-12 1951-01-30 American Enka Corp Process for the intensive aftertreatment of synthetic threads
US2696309A (en) * 1950-06-22 1954-12-07 Bultman Laurence Rotary drum filter
US2744633A (en) * 1951-10-02 1956-05-08 Georgia Kaolin Co Filters
DE1016891B (de) * 1952-04-05 1957-10-03 Studi E Brevetti Applic Tessil Vorrichtung zur fortlaufenden Behandlung von Textilfaeden und Garnen, insbesondere frischgesponnenen Kunstseidefaeden
US2889931A (en) * 1954-12-27 1959-06-09 Phillips Petroleum Co Continuous rotary filter
US3024493A (en) * 1958-01-30 1962-03-13 Phrix Werke Ag Adjustably shielded suction drum for circulating bath liquid
US3125514A (en) * 1964-03-17 Filters for dewatering suspensions

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125514A (en) * 1964-03-17 Filters for dewatering suspensions
US1223245A (en) * 1916-01-17 1917-04-17 Charles Biesel Dehydrator.
US2521724A (en) * 1946-09-25 1950-09-12 American Can Co Counter mechanism for can covers
US2539980A (en) * 1947-04-12 1951-01-30 American Enka Corp Process for the intensive aftertreatment of synthetic threads
US2521748A (en) * 1947-12-26 1950-09-12 Ind Rayon Corp Method for the manufacture of regenerated cellulose materials
US2696309A (en) * 1950-06-22 1954-12-07 Bultman Laurence Rotary drum filter
US2744633A (en) * 1951-10-02 1956-05-08 Georgia Kaolin Co Filters
DE1016891B (de) * 1952-04-05 1957-10-03 Studi E Brevetti Applic Tessil Vorrichtung zur fortlaufenden Behandlung von Textilfaeden und Garnen, insbesondere frischgesponnenen Kunstseidefaeden
US2889931A (en) * 1954-12-27 1959-06-09 Phillips Petroleum Co Continuous rotary filter
US3024493A (en) * 1958-01-30 1962-03-13 Phrix Werke Ag Adjustably shielded suction drum for circulating bath liquid

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4447941A (en) * 1981-05-11 1984-05-15 Escher Wyss Gmbh Dewatering roll of a wire press
US4607420A (en) * 1983-02-07 1986-08-26 Schwabische Huttenwerke Gmbh Roller for a machine for manufacturing endless tape material
US11970788B2 (en) * 2013-10-29 2024-04-30 Braskem America, Inc. System and method of dosing a polymer mixture with a first solvent, device, system and method of extracting solvent from at least one polymeric yarn, system and method of mechanical pre-recovery of at least one liquid in at least one polymeric yarn, and continuous system and method for producing at least one polymeric yarn

Also Published As

Publication number Publication date
SE304347B (xx) 1968-09-23
BE634478A (xx)
CH405595A (it) 1966-01-15
ES289878A1 (es) 1963-11-01
GB1044174A (en) 1966-09-28
NL295198A (xx)
AT249248B (de) 1966-09-12

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