US2883259A - Processes and equipments for the continuous treating of yarns - Google Patents

Processes and equipments for the continuous treating of yarns Download PDF

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Publication number
US2883259A
US2883259A US333165A US33316553A US2883259A US 2883259 A US2883259 A US 2883259A US 333165 A US333165 A US 333165A US 33316553 A US33316553 A US 33316553A US 2883259 A US2883259 A US 2883259A
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strands
yarn
main surface
strand
roller
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US333165A
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English (en)
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Severini Goffredo
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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 a process and related equipment for the continuous treating of yarn in general.
  • the invention is particularly suitable for the continuous spinning of viscose rayon, a particular reference to such a process will be made in the following description. However, this is not to be understood as a restriction on the scope of the invention, as the same can be equally well applied to continuous processes other than continuous spinning, and to textile materials other than viscose rayon, e.g. cellulose acetate, casein and synthetic linear polymers.
  • yarn In the continuous treatment of single filaments, groups of filaments and textile yarns, the material which is to be processed, hereinafter termed for convenience as yarn (it being understood that, as the material is often in the form of groups of bundles of filaments or yarns, or tow, each individual group or bundles of filaments will be referred to as a strand of yarn) must be continuously fed while being submitted to chemical treatments, or while being impregnated with suitable processing liquors, or while being submitted to thermal treatments, e.g. drying, cooling, conditioning and the like, or also to mechanical treatments, as stretching and drawing, or finally to any combination of said treatments.
  • thermal treatments e.g. drying, cooling, conditioning and the like
  • the devices designed to continuously feed the yarn in such a manner that a considerable length thereof be stored within a relatively restricted space, and in particular those by which the yarn is caused to travel along a spiral path, are termed feeding and storing devices.
  • the apparatus object of this invention also causes the yarn that is being processed therein to travel along a spiral path while actually differing in many respects from all other apparatus heretofore known. e
  • compact device an apparatus of limited size yet capable of handling a great total length of yarn.
  • This invention provides through very simple means, a device of such kind, having unusually reduced sizes.
  • Fig. 2 is an end view of the device of Fig. l.
  • the treatment according to this invention is characterized in that a plurality of yarns which are to be treated all in the same manner, are caused to travel about two slanted cylindrical surfaces in substantially spiral configurations, one of the two surfaces being the same for all yarns, and that the paths of different strands never cross each other, but are intercalated in a constant succession.
  • the parts of the spiral configurations of the several strands which do not lie on the common cylindrical surface not only have a difierent form of configuration, but moreover do not cross each other, i.e. each of them isincluded within the space encompassed by the other.
  • the different strands are each started according to a preestablished sequence, in the order of increasing distances between the two cylindrical surfaces about which each strand travels.
  • the apparatus according to the invention is characterized in that it comprises one main roller, whereon the treatmentsor at least the main portion thereofare applied, the same roller being suitablyshaped and provided with different auxiliary elements as required by the particular treatment or treatments to be applied, and by the particular textile material to be processed, as well as a number of auxiliary or advancing rollers, arranged with their axes oblique with respect to the axes of the main roller.
  • the auxiliary rollers are arranged and adjusted .in such a mannerthat when one strand of yarn is passed around each of them and all the strands of all of the yarns'are then passed around the main processing rollerand all rollers are driven at the sameperipheral speed, then all yarns will travel along spiral paths all having the same pitch.
  • the advancing rollers arespaced according to characteristics of treatments to be applied, and of the material to be processed? l l
  • the apparatus could consist also of more than one processing roller, provided that each one of such processing rollers is in combination with a plurality of advancing rollers.
  • the equipment could be considered as made-up by a number of single units, each provided with only one processing roller, both in the description and in the claims reference will be made to the case of one of such single units, it being understood that this is not to be construed as an undue restric tion of the scope of the invention, and of the protection granted by the Letters Patent.
  • a number of strands of yarns are fed to acommon storing and feeding device, provided with a processing roller common to all yarns, and with a number of advancing rollers, shaped and arranged in such a manner that none of the paths covered by the strands of the different yarns shall wholly coincide with any other path, even in the case of an occasional displacement of any kind.
  • the strands are started according to a pro-established sequence, beginning with the yarn of the roller nearest to processing roller, and then in the order of increasing distance of remaining rollers from the processing roller.
  • Figs. 1 and 2 show, by way of example, a preferred embodiment thereof, as applied to a particular type of yarn. It will be understood that the relative positions and inclinations of the rollers have been exaggerated in order to better illustrate the features of the construction.
  • 20 is a processing roller, whereon a plurality of strands of yarn (only four strands, 21 21 21 are shown by way of exaxes oblique in respect of the main roller.
  • treatment solutions are fed to processing roller 20 by any'convenient means, eg by the tubes 22, as shown in'the figure, and then are collected by any convenient means, e.g. by the basin 23, subdivided into compartments or cells 27, each corresponding to a different solution, and wherefroin the solutions can be conveniently re-circulated.
  • the processing roller 20 is also subdivided into various sections 'by means of the flanges 24, which ensure a positive separation between the different solutions.
  • Yarn guides are also provided, in order to allow the strands to pass over the flanges; in the example as considered, each strand of yarn is engaged by one yarn guide in correspondence to each'flange.
  • the roller 20 is inclined in a direction opposite to that of yarn motion, whereby the film formed by the treatment solution on the surface of each cylinder section, will flow in countercurrent to the direction of movement of the strands.
  • a relatively large diameter, e.g. or more centimeters, is preferably selected for the roller 20.
  • the Figures 1 and 2 are based on the assumption that only four strands are to be processed, but such a number could obviously be varied at will.
  • a plurality of advancing rollers 26 26 26 and 26,; are provided, one to correspond to each strand.
  • a diameter smaller than that of the processing roller should be selected for the advancing rollers, and they are to be arranged with their Under such conditions, each strand wound around one of rollers 26 26 26 and 26 and then around the processing roller 20, will travel along a substantially spiral path, the pitch of which is governed primarily by the inclination at which said rollers are'set orwhen the inclination is equalby the ratio ofroller diameters.
  • the rollers 26 26 26 and 26 are all of the same size, and are arranged parallel to one another, being set at different distances from the processing roller however, as clearly shown by Fig. 2.
  • the spiral paths covered by the different strands accordingly have a different shape, and more precisely they are more stretched out for those yarns which come from the farthest feed rollers.
  • Each turn of yarn has a processing portion in contact with the roller 20, the length of which varies slightly according to the distance at which the advancing roller is set, as clearly apparent. More precisely, the farther the advancing roller in question is from the processing roller, the smaller will be the obtuse angle during which the yarn is in contact with the roller 20 and the shorter will be the processing path of yarn.
  • theportion of the surface of roller 20 which they contact in common is that portion included in the angle Z of Fig. 2.
  • the surfaces of advancing rollers could also be utilized for the processing of yarn; as a matter of fact, when the treatments are applied by means of solutions, an amount of said solutions is always entrained by the yarns, whereby the treatment is extended even beyond the surface of roller 20. But in spite of this, only the roller surface is considered as a treatment surface on the basis of the previously given definitions, because the principal part of the treatment is applied thereon. In each case, as can be readily appreciated, the strands will travel along spiral paths all having the same pitch,'whereby the highest degree of utilization 'of'processing roller surface can be attained, the pitch of spiral paths being purposely selected in accordance with the number and diameters of yarn to attain precisely such a maximum degreeof utilization.
  • Thestrand 21 is firststarted and, after having reached the first flange 24, it stops thereagainst, forming a ring made-up by many turns ofstrand. Then the second yarn 21 is started, and behaves in a like manner; then all other strands are likewise started. All rings or yarn are caused to pass at the same time 'over the flange, whereupon the single strands will disengage from one anotherwhich, as already stated, is a really astonishing result-and go to next flange to form further rings thereagainst, and so on for all other flanges. Finally, after all treatments have been applied, each strand is sent to its own collecting-device.
  • a process for the continuous processing of yarns comprising the steps of looping a plurality of strands of yarn with the same interval between successive loops of each strand about a common cylindrical main surface, looping each strand about a separate cylindrical auxiliary surface associatedwith said cylindrical main surface, the several auxiliary surfaces each being oblique to said main surface and at a different distancethe're from, the loops of each strand 'of yarn circumscribing the loops 'of the other strands that are associated with auxiliary surfaces less distant from said main surface, causing all of said strands to progress continuously in their looped configurations, and continuously applying treatments thereto while they are so progressing.
  • a process for the continuous processing of yarns comprising the steps of threading up a first strand of yarn about a cylindrical main surface and a first cylindrical auxiliary surface oblique to the cylindrical main surface in a substantially helical configuration, subsequently threading up a second strand of yarn about the same main surface and about a second cylindrical auxiliary surface oblique to said main surface and at a greater distance therefrom than said first auxiliary surface, in another substantially helical configuration circumscribing the configuration of the first strand and having the same pitch, subsequently threading up other strands of yarn in succession about the same main surface and about other cylindrical auxiliary surfaces oblique to said main surface and at increasing distances therefrom, in substantially helical configurations all having the same pitch and each circumscribing the configurations of the preceding strands and being circumscribed by the configurations of the following strands, actuating all of said strands to travel continuously in the configurations in which they have been threaded up, and continuously processing said strands by applying treatments thereto
  • Thread advancing device for processing yarns comprising a rotatable processing roller, means for effecting at least a substantial portion of each processing treatment thereon, and a plurality of advancing rollers arranged obliquely to said processing roller, each of them having the same effective length as said processing roller, and all being positioned in a fixed relationship thereto for concurrent cooperation with and for concurrently supporting and advancing a strand of yarn for each advancing roller in a substantially helical configuration having the same pitch for all strands, said advancing rollers being positioned at increasing distances and in substantially the same general direction away from said.
  • Thread advancing device for processing yarns comprising a rotatable processing roller, means for effecting at least a substantial portion of each processing treatment thereon, and a plurality of advancing rollers arranged obliquely to said processing roller each of them having the same eflective length as said processing roller, said advancing rollers being arranged in a succession in which each roller is closer to said processing roller than the advancing rollers that follow it in said succession, and being positioned in a fixed relationship to said processing roller for concurrent cooperation therewith, each advancing roller being positioned within the substantially wedge-shaped space circumscribed by a strand of yarn looped about said processing roller and the advancing roller that follows next in said succession.
  • Thread advancing device according to claim 6 wherein the advancing rollers have substantially smaller diameters than the processing roller.
  • Thread advancing device wherein the processing roller is divided into processing zones corresponding to processing steps including setting, desulphurizing, bleaching, finishing and a plurality of washings, said device further comprising means for effecting each processing step in the corresponding zone of the processing roller.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US333165A 1952-01-25 1953-01-26 Processes and equipments for the continuous treating of yarns Expired - Lifetime US2883259A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT313956X 1952-01-25

Publications (1)

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US2883259A true US2883259A (en) 1959-04-21

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US333165A Expired - Lifetime US2883259A (en) 1952-01-25 1953-01-26 Processes and equipments for the continuous treating of yarns

Country Status (6)

Country Link
US (1) US2883259A (de)
BE (1) BE517153A (de)
CH (1) CH313956A (de)
DE (1) DE1062386B (de)
FR (1) FR1079808A (de)
NL (2) NL99812C (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3063279A (en) * 1958-04-09 1962-11-13 Fleissner & Sohn G M B H & Co Wet treatment plant for textiles
US3184529A (en) * 1960-11-12 1965-05-18 Studi E Brevetti Applic Tessil Process for the continuous processing of synthetic yarns
DE3415703A1 (de) * 1983-05-02 1984-11-08 Asahi Kasei Kogyo K.K., Osaka Verfahren und vorrichtung zum kontinuierlichen nassspinnen von filamenten
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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1129651B (it) * 1980-01-09 1986-06-11 Snia Viscosa Procedimento perfezionato per la filatura in continuo di rayon viscosa
IT1129652B (it) * 1980-01-09 1986-06-11 Snia Viscosa Procedimento perfezionato per la filatura in continuo di rayon viscosa

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1983221A (en) * 1931-01-15 1934-12-04 Furness Corp Continuous process and apparatus for making rayon
US2020057A (en) * 1932-03-05 1935-11-05 American Bemberg Corp Process and apparatus for the treatment of artificial silk
GB448774A (en) * 1934-09-11 1936-06-11 Lustrafil Ltd Improvements in or relating to the treatment of artificial silk or other textile filaments
US2254251A (en) * 1934-02-05 1941-09-02 Uytenbogaart Johannes Device for use in the aftertreatment of artificial silk
US2294871A (en) * 1939-07-19 1942-09-01 American Bemberg Corp Method and apparatus for the continuous spinning of artificial silk
US2416535A (en) * 1942-07-14 1947-02-25 North American Rayon Corp Apparatus for wet treatment and drying of a moving wet spun synthetic thread strand
US2533103A (en) * 1948-05-07 1950-12-05 Courtaulds Ltd Apparatus for the liquid treatment of threads
US2539980A (en) * 1947-04-12 1951-01-30 American Enka Corp Process for the intensive aftertreatment of synthetic threads
US2596520A (en) * 1943-01-04 1952-05-13 Lustrafil Ltd Thread guiding apparatus
DE857571C (de) * 1943-01-07 1952-12-01 Glanzstoff Ag Abzugvorrichtung an Kunstseidetopfspinnmaschinen
US2621390A (en) * 1947-04-14 1952-12-16 Ici Ltd Roll system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE710926C (de) * 1932-03-05 1941-09-23 I P Bemberg A G Verfahren zur ununterbrochenen Herstellung und Nachbehandlung von Kunstseidefaeden
NL35876C (de) * 1932-03-05

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1983221A (en) * 1931-01-15 1934-12-04 Furness Corp Continuous process and apparatus for making rayon
US2020057A (en) * 1932-03-05 1935-11-05 American Bemberg Corp Process and apparatus for the treatment of artificial silk
US2254251A (en) * 1934-02-05 1941-09-02 Uytenbogaart Johannes Device for use in the aftertreatment of artificial silk
GB448774A (en) * 1934-09-11 1936-06-11 Lustrafil Ltd Improvements in or relating to the treatment of artificial silk or other textile filaments
US2294871A (en) * 1939-07-19 1942-09-01 American Bemberg Corp Method and apparatus for the continuous spinning of artificial silk
US2416535A (en) * 1942-07-14 1947-02-25 North American Rayon Corp Apparatus for wet treatment and drying of a moving wet spun synthetic thread strand
US2596520A (en) * 1943-01-04 1952-05-13 Lustrafil Ltd Thread guiding apparatus
DE857571C (de) * 1943-01-07 1952-12-01 Glanzstoff Ag Abzugvorrichtung an Kunstseidetopfspinnmaschinen
US2539980A (en) * 1947-04-12 1951-01-30 American Enka Corp Process for the intensive aftertreatment of synthetic threads
US2621390A (en) * 1947-04-14 1952-12-16 Ici Ltd Roll system
US2533103A (en) * 1948-05-07 1950-12-05 Courtaulds Ltd Apparatus for the liquid treatment of threads

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3063279A (en) * 1958-04-09 1962-11-13 Fleissner & Sohn G M B H & Co Wet treatment plant for textiles
US3184529A (en) * 1960-11-12 1965-05-18 Studi E Brevetti Applic Tessil Process for the continuous processing of synthetic yarns
DE3415703A1 (de) * 1983-05-02 1984-11-08 Asahi Kasei Kogyo K.K., Osaka Verfahren und vorrichtung zum kontinuierlichen nassspinnen von filamenten
NL8401373A (nl) * 1983-05-02 1984-12-03 Asahi Chemical Ind Werkwijze en inrichting voor het continu natspinnen van filamenten.
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
NL175547B (nl)
CH313956A (it) 1956-05-31
NL99812C (de)
BE517153A (de)
DE1062386B (de) 1959-07-30
FR1079808A (fr) 1954-12-02

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