US2334288A - Apparatus for the treatment of artificial materials - Google Patents

Apparatus for the treatment of artificial materials Download PDF

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Publication number
US2334288A
US2334288A US452749A US45274942A US2334288A US 2334288 A US2334288 A US 2334288A US 452749 A US452749 A US 452749A US 45274942 A US45274942 A US 45274942A US 2334288 A US2334288 A US 2334288A
Authority
US
United States
Prior art keywords
thread
chamber
roll
stretching
softening
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
US452749A
Other languages
English (en)
Inventor
Raymond D Reel
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.)
Celanese Corp
Original Assignee
Celanese 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
Priority to BE476574D priority Critical patent/BE476574A/xx
Priority to FR955702D priority patent/FR955702A/fr
Application filed by Celanese Corp filed Critical Celanese Corp
Priority to US452749A priority patent/US2334288A/en
Priority to US462921A priority patent/US2398856A/en
Priority to GB12224/43A priority patent/GB569669A/en
Priority to GB5448/45A priority patent/GB570646A/en
Application granted granted Critical
Publication of US2334288A publication Critical patent/US2334288A/en
Priority to GB9591/44A priority patent/GB595360A/en
Priority to FR952702D priority patent/FR952702A/fr
Priority to DEP25351A priority patent/DE842523C/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/74—Applying photosensitive compositions to the base; Drying processes therefor
    • 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
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/12—Stretch-spinning methods
    • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
    • 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
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
    • D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/222—Stretching in a gaseous atmosphere or in a fluid bed
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/225—Mechanical characteristics of stretching apparatus
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/227—Control of the stretching tension; Localisation of the stretching neck; Draw-pins

Definitions

  • This invention relates'to improvements in the stretching of filamentary materials, and relates more particularly to improved apparatus for stretching filaments, yarns and threads hereinafter referred to as threads, while they are travelling and while they are under the influence of a softening medium, in order to enhance the textile properties thereof such as, for example,-
  • the apparatus of the present invention is particularly applicable to the production of I threads, having a basis of cellulose acetate, or other cellulose ester or ethers,
  • a further object of this invention is the provision of a thread stretching device having thread softening means comprising two interconnecting chambers in one of which is contained water and in the other a thread softening medium, the water being maintained at 5 or more pounds of higher gauge pressure than the pressure in the chamber containing the softening means.
  • Another object of this invention is the provision of a thread stretching device having automatic tension control on the thread taking-up means, thus making for more accurate control of stretch and lowering the requirements of operative skill necessary to operate the device efilciently.
  • Still another object of this invention is to provide a thread stretching device which produces stretched thread at a much greater speed than heretofore possible.
  • Figure 1 is a side view, partially in cross-section and more or less diagrammatic, of the improved device of my invention
  • the thread be kept moving, since otherwise it would not withstand the continued action of the softening medium and breakage would result.
  • An important object of this invention is the provision of a novel and efllcient device for stretching a single end of thread wherein said single end is passed througha small tubehaving two interconnected chambers into one of which 'is fed a medium for softening said thread.
  • Figure'2 is an enlarged top plan view of the .takeup feed roll and automatic guides cooperating therewith in the position of starting up the device
  • Figure 3 is an enlarged view similar to Figure 2 with the automatic guides in operative position to eflect the maximum stretching or taking-up eflect on the yarn
  • Figure 4 is a detail view of the guide arm pivot and tension member.
  • the degree of stretch eflected is changed, for starting the operation or terminating it, by placing the ratio of the length of thread fed to the length of thread drawn from the device under the control of the tension in the material as the material becomes softened.
  • the degree of stretching of each end of thread is made a function of the increasing softness of that particular end of thread as the supply of softening medium is turned on at the starting up of the operation, so that the degree of stretch is made to follow automatically the softening of the yarn in a smooth and economic manner.
  • the degree of stretch is automatically reduced preventing waste resulting from broken ends.
  • my device is provided with conical stretching roller with movable guides responsive to the tension on the thread for governing the path of the thread with respect to the roller as will hereinafter be described more fully.
  • the reference numeral l indicates a single end of thread drawn from a bobbin 2 and passes through a pigtail guide 2' into a trough 3 containing a liquid 3' for washing out or removing any undesired substances on or in the thread, such as, for example, residual solvent.
  • the source of supply is here shown as a bobbin, it is to be understood that any other thread package may be employed, or the thread may come directly from the metier.
  • Rollers-4 are provided toguide the thread I below-the surface of the liquid 3' in trough 3.
  • drying frame mounteded on or above trough 3 is a drying frame generally indicated by reference numeral 5, which drying frame comprises suitable uprights or supports 6 on which are rotatably I is caused to travel through a circuitous path of a length suflicient to dry the thread or to serve as an air path for assisting to remove residual solvent.
  • the thread I passes from frame over guide roller 8 and may be led into a trough 9 thereon, for admitting the steam thereto.
  • a drain i9 may be provided for withdrawing condensate and fluid entering from the adjoining auxiliary chamber 2
  • is positioned inject or assist in carrying the travelling thread through the orifice 24 into the chamber l1.
  • An orifice 25 is provided at the entrance end of the fluid chamber 2i and an orifice 26 at the exit end of the steam chamber H for the passage of the thread through the treating device, the
  • orifices all being of small dimension to maintain the pressures in chambers i1 and 2i.
  • a stationary guide 21 is provided to direct the thread I coming from the steam chamber I! on as cap twlsters, Topham mounted guide rollers I over,which the thread containing water or other conditioning liquid II,
  • trough 9 being provided with rollers" for guiding the thread beneath the stance of the liquid therein.
  • the water is used to remove or counteract the effect of residual solvent in the supply yarn, to prevent counter-flow of softening medium into the water chamber, to inject yarn pass ing through the water chamber into the other chamber and to providemoisture in said other chamber.
  • the thread I leaves the trough 9 over a guide roller l2 and passes through a pigtail guide l3 and then between rollers l4 and I, either or both of which may be positively driven, which rollers are adapted to feed the thread to a thread treating device, generally indicated by'- reference numeral l6, where the thread is subjected to a softening medium.
  • Thetreating device it shown in Figure 1 cm- Dloys steam to soften the thread.
  • the device It is provided with a steam chamber I! having means It, such as fa pipe which may have a control valve (not shown) to a stretching or taking-up device shown at 28 in Figure 1 and in greater detail in Figures 2, 3 and 4.
  • Guides 28 and 30 are provided to direct the stretched thread by means of a ring 3
  • the means for the automatic handling or drawing the thread under uniform tension and feeding it to the take-up or packaging device at lineal rates varying from zero to the maximum capacity of the device' is shown in detail in Figures 2. 3 and 4.
  • This means comprises a conical roll 34 mounted on a shaft 35 that is positively.
  • An auxiliary collar 36 is provided on the smaller end of the roll 34 to prevent thread from running of! the roll on to the shaft 35 and bearings thereof (not shown).
  • the conical roll 34 is provided with a cylindrical portion 31 adjacent to the base thereof.
  • Means are provided for directing the thread I on to conical roll 34, said means comprising a pair of guides which are movable in response to the tension on the thread.
  • a bracket 33 having an arm 4
  • Mounted on an ear 44 of the arm 43 is a member 45 bent to form 43, at the opposite end from the member 45, is attached a contractile spring 43 having a connecting link 43 which passes through a stop ii mounted on a bracket 52.
  • the connecting link 49 is threaded as indicated at 33 and is provided with a thumb screw 34 that abuts against the stop 5! so that the tension on the spring 48 may be adiusted.
  • a front guide is formed on one end. of a rod 33 that is carried on a pivot 31 iournaled in a bracket II.
  • the rod 54 extends beyond the pivot approximately half way around guides 46 and 41.
  • the feed rolls l4 and i5 arejdriven at a constant speed equal to or lower than, the peripheral speed of the smallest part of the -roll 3.4 and the application of the softening niediumisstarted in the chamber ll.
  • the thread at'the starting point has little stretch the tension of the yarn pulls the pivoted arm 43 to the narrow end of the cone so that the output is substantially that of the input.
  • the thread begins to stretch allowing the tension of the spring 48' on the pivoted arm 43 to swing the arm toward a larger part of the conical roll 34.
  • the front guide follows the rearguides 46 and 47, carried on the arm 34, toward the larger part of the conical roll due to the tension of the spring 59 holding the rod 56 against the arm 34.
  • This invention is applicable to the stretching of thermoplastic threads or threads capable of being softened by solvent vapors and/or liquids such as those made of or containing derivatives of cellulose.
  • derivatives of cellulose are the organic acid esters of cellulose such as cellulose acetate, cellulose formate, cellulose butyrate.
  • cellulose propionate and cellulose acetatepropionate the cellulose ethers such as ethyl cellulose, methy .cellulose and benzyl cellulose; the partial or completely saponified esters of cellulose; regenerated or reconstituted cellulose; and the linear polymers of high molecular weight such as the linear condensation product of a polyamide, condensation products of dicarboxylic compounds with diamine compounds and condensation products of diketenes with compounds containing two reactive hydrogens as diamines, glycols, etc. plurality of filaments grouped together either with or without twist to form a thread.
  • the threads may be mcnofils or a v of the thread for engaging the thread and to direct its path on said drawing means for changing the speed of the thread drawn from'said chamber.
  • an apparatus for stretching a single end of thread the combination with a chamber for the application of a softening medium to a travelling thread, means for feeding the thread at a constaht speed into said chamber and means for drawing the thread out of said chamber including a roll having a conical surface, of means including guides on opposite sides of said roll responsive to the degree of softness of the thread for engaging the thread and for directing its path on said roll for changing the speed of the thread drawn from said chamber.
  • an apparatus for stretching a single end of thread the combination with a chamber for the application of a softening medium to a travelling thread, means for positively feeding the thread into said chamber and means for positively drawing the thread out of said chamber including a roll having a conical surface, said roll being driven at a uniform speed and in timed relation to the speed of said feedin means, of means including a pivoted arm, an adjustable tension urging said arm to swing toward the larger end of said roll, a back guide carried by said arm, a pivoted rod, a front guide on said rod, and an extension on said rod for engaging said pivoted arm to effect correlated movement of said back guide and front guide whereby the saidmeans is responsive to the degree of softness of the thread for engaging the thread and directing its path on said drawing means for changing the speed of the thread drawn from said chamber.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
US452749A 1942-07-29 1942-07-29 Apparatus for the treatment of artificial materials Expired - Lifetime US2334288A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
BE476574D BE476574A (xx) 1942-07-29
FR955702D FR955702A (xx) 1942-07-29
US452749A US2334288A (en) 1942-07-29 1942-07-29 Apparatus for the treatment of artificial materials
US462921A US2398856A (en) 1942-07-29 1942-10-22 Apparatus for the treatment of artificial materials
GB12224/43A GB569669A (en) 1942-07-29 1943-07-27 Improvements relating to apparatus for the stretching of textile filaments or threads
GB5448/45A GB570646A (en) 1942-07-29 1943-07-27 Improvements in or relating to the stretching of textile filaments and threads
GB9591/44A GB595360A (en) 1942-07-29 1944-05-18 Improvements in photographic materials
FR952702D FR952702A (fr) 1942-07-29 1947-08-07 Appareil d'étirage de filaments ou fils textiles
DEP25351A DE842523C (de) 1942-07-29 1948-12-18 Einrichtung zum Ziehen und Befoerdern eines laufenden Fadens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US452749A US2334288A (en) 1942-07-29 1942-07-29 Apparatus for the treatment of artificial materials

Publications (1)

Publication Number Publication Date
US2334288A true US2334288A (en) 1943-11-16

Family

ID=23797771

Family Applications (1)

Application Number Title Priority Date Filing Date
US452749A Expired - Lifetime US2334288A (en) 1942-07-29 1942-07-29 Apparatus for the treatment of artificial materials

Country Status (5)

Country Link
US (1) US2334288A (xx)
BE (1) BE476574A (xx)
DE (1) DE842523C (xx)
FR (2) FR952702A (xx)
GB (3) GB570646A (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456384A (en) * 1946-06-04 1948-12-14 Du Pont Thermal-stretching apparatus for yarn

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL95582C (xx) * 1953-08-06
BE544185A (xx) * 1955-02-23
DE1156535B (de) * 1958-08-30 1963-10-31 Barmag Barmer Maschf Abzugseinrichtung fuer eine aus Stauchkammer und Foerderwalzenpaaren bestehende Kraeuselvorrichtung fuer Kunstfaeden
CN114457484B (zh) * 2022-02-22 2023-11-17 罗浩 一种基于偏心转动的纺织用拉伸装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456384A (en) * 1946-06-04 1948-12-14 Du Pont Thermal-stretching apparatus for yarn

Also Published As

Publication number Publication date
GB569669A (en) 1945-06-04
DE842523C (de) 1952-06-26
BE476574A (xx)
GB595360A (en) 1947-12-03
FR955702A (xx) 1950-01-19
FR952702A (fr) 1949-11-23
GB570646A (en) 1945-07-16

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