US3184529A - Process for the continuous processing of synthetic yarns - Google Patents

Process for the continuous processing of synthetic yarns Download PDF

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Publication number
US3184529A
US3184529A US151769A US15176961A US3184529A US 3184529 A US3184529 A US 3184529A US 151769 A US151769 A US 151769A US 15176961 A US15176961 A US 15176961A US 3184529 A US3184529 A US 3184529A
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United States
Prior art keywords
individual
threads
thread
main surface
strands
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Expired - Lifetime
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US151769A
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English (en)
Inventor
Diotti Giacinto
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Studi E Brevetti Applicazioni Tessili
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Studi E Brevetti Applicazioni Tessili
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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
    • 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
    • D01D11/00—Other features of manufacture
    • D01D11/04—Fixed guides

Definitions

  • thread means the group of filaments originating in a single spinnerette or nozzle.
  • Synthetic yarns in particular, viscose rayon, must be subjected to a set of wet processes which are carried out in collection and feed devices which can have different structures depending on the case. For .a long time it had been impossible to spin continuously and simultaneously on the same device a plurality of threads because the d-iiferent threads came to stick to one another, especially because during part of the process they were in a semi-plastic or plastic state.
  • This invention has as its object a further improvement in said continuous spinning process. It has been found that the spinning can be further improved by causing a plurality of threads to travel through a helical path such that the successive turns of each thread will be maintained at a distance apart from one another, even if the turns of different threads are allowed to touch one another and, in fact, they may very well touch during part of their travel.
  • the spacing between the successive turns of each thread is achieved by giving the device a plurality of thread guides and by placing said thread guides in such a spatial relationship to the path through which the threads travel that one and one only turn of each thread and, in general, all the threads being processed, will pass through each interspace between any two adjacent thread guides.
  • the number of turns passing through each interspace could be further reduced but by doing so would lead to :a useless multiplication of the number of thread guides.
  • FIG. 1 is a device embodying the invention, shown in perspective, only a few of the turns of the various threads being shown;
  • FIG. 2 shows the same device seen from above
  • FIG. 3 shows the same device along a section taken perpendicular to the axis of the main roller
  • FIG. 4 shows an enlarged detail taken from FIG. 3;
  • FIGS. 5a and 5b are transverse sections of the thread guide group in two positions.
  • the main roller or processing roller is indicated by it).
  • the feed rollers are shown at 11a and 11b. Naturally, all the rollers are mounted on a frame which is neither described nor shown.
  • the threads are designated by 12, accompanied, where necessary, by the small letter corresponding to the feed roller on which the particular thread rests.
  • Thread guides of this type are alsoto be found in spinning machines of types already known and are used to allow the threads to pass over the separating flanges dealt with further on.
  • the processing areas of the main roller are indicated by the numbers 15 to 21, inclusive, and the adjacent areas are separated from one another by sets of flanges each set being indicated by a number from 22 to 27, inclusive. A single flange is to be found at the beginning of the processing roller, designated by the number 28.
  • the processing fluids are fed to the roller in a manner already known, by way of lines 29, of which only one is shown diagrammatically in FIG. 3.
  • the number 30 indicates, generally, the thread guides which are used to separate the successive turns of each thread from one another.
  • said thread guides are divided up among various groups, each corresponding to a single processing area, while the thread guides 13 serve as guides in a way which is rendered particularly obvious by FIG. 2, for the passage of the various threads from one processing area to another, passing above the separating flanges.
  • This spinning machine is, of course, rendered complete by a reservoir to hold the various fluids, divided by partitions which penetrate into the interspaces between the flanges of each set from 21 to 27, inelusive.
  • the paths through which the threads travel are thus determined in relation to thread guides 39, in such a way that one turn of each thread 12a, 12b, will pass through the interspace between the two successive thread guides 30 and that a thread guide 30 will be located between each set of turns and the set which follows of the same thread.
  • FIGS. 1 and 2. In FIG. 1 only a few turns of thread have been shown. It will be seen how the corresponding turns of the various threads, which in this particular case are two in number, but which, naturally, in other cases could be of even a considerable number, are practically in contact with one another, to such an extent that in FIG.
  • FIG. 1 they are shown by a single line and that they separate from one another on passing to their respective feed rollers as is clearly shown in FIG. 1, remaining almost on the same vertical plane as shown by FIG. 2, excepting where the threads pass from one processing area to the next.
  • FIG. 2 it is very clearly shown in FIG. 2 how the adjacent turns of each thread are separated, passing through the various interspaces created by the group of thread guides 30, which, taken all together, go to make up what We will call the comb 31.
  • Thread guides 13 are mounted on a longitudinal stem 32 and each is held by an arc-shaped piece 33.
  • Thread guides 30 (only two of whichare shown in FIG. 5) are mounted on (or incorporated in) a plate 34, fixed to a hollow cylinder 35,
  • the thread guides 13 can be assembled through the slots 36 and 37 and mounted using washers 38 on pieces 33.
  • a process for the continuous processing of yarns comprising looping a plurality of individual strands of yarn along essentially helical paths including a predetermined number of loops of each strand about a common cylindrical main surface, looping each individual strand about a separate individual cylindrical auxiliary surface associated with said cylindrical main surface, the several auxiliary surfaces each being 'at a different location in respect to said main surface causing all of said strands to progress continuously in their looped individual config urations, continuously applying treatments thereto while they are so progressing, causing said plurality of individual strands of yarn to guidedly loopabout said common main surface in loops through guide passages including a pre determined number of guide passages, all said individual strands being in groups wherein the grouped strands are in mutual contacting relationship in each one of said guide passages.
  • each in dividual strand of yarn contacts other strands in said plurality in individual loop portions about said main surface between the diameters of the rollers, cylindrical support is to turn in a counterclockwise direction using the knobs 39 and the thread guides 30 return to the position shown in FIG. 5a, in which position they engage with the threads in the manner shown in FIGS. 1 and 2.
  • the interval between the various thread guides is determined in such a way as will correspond to the pitch between turns of the threads.
  • the thread guides be tapered in such a way as will aid the threads to enter the interspaces between thern.
  • FIG. 4 in this respect, shows the relationship between the two positions of the thread guide 30 and that of the threads, the inactive position of the thread guides being that shown in dotted or broken lines.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US151769A 1960-11-12 1961-11-13 Process for the continuous processing of synthetic yarns Expired - Lifetime US3184529A (en)

Applications Claiming Priority (1)

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IT1949160 1960-11-12

Publications (1)

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US3184529A true US3184529A (en) 1965-05-18

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US151769A Expired - Lifetime US3184529A (en) 1960-11-12 1961-11-13 Process for the continuous processing of synthetic yarns

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US (1) US3184529A (xx)
CH (1) CH371859A (xx)
DK (1) DK106193C (xx)
ES (1) ES272442A1 (xx)
GB (1) GB1007154A (xx)
NL (1) NL271222A (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200270769A1 (en) * 2013-10-29 2020-08-27 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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB583990A (en) * 1944-09-13 1947-01-03 American Viscose Corp Methods and apparatus for the liquid treatment of filamentary material
US2535426A (en) * 1948-06-15 1950-12-26 Celanese Corp Metier
US2883259A (en) * 1952-01-25 1959-04-21 Severini Goffredo Processes and equipments for the continuous treating of yarns

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB583990A (en) * 1944-09-13 1947-01-03 American Viscose Corp Methods and apparatus for the liquid treatment of filamentary material
US2535426A (en) * 1948-06-15 1950-12-26 Celanese Corp Metier
US2883259A (en) * 1952-01-25 1959-04-21 Severini Goffredo Processes and equipments for the continuous treating of yarns

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200270769A1 (en) * 2013-10-29 2020-08-27 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
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
CH371859A (it) 1963-09-15
NL271222A (xx)
ES272442A1 (es) 1962-03-01
DK106193C (da) 1967-01-02
GB1007154A (en) 1965-10-13

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