US3680334A - Apparatus having chamber of oval cross-section for heat treating largedenier tow - Google Patents

Apparatus having chamber of oval cross-section for heat treating largedenier tow Download PDF

Info

Publication number
US3680334A
US3680334A US108060A US10806071A US3680334A US 3680334 A US3680334 A US 3680334A US 108060 A US108060 A US 108060A US 10806071 A US10806071 A US 10806071A US 3680334 A US3680334 A US 3680334A
Authority
US
United States
Prior art keywords
chamber
tow
holes
oval
range
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
US108060A
Other languages
English (en)
Inventor
Wayne K Erickson
David R Buchanan
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.)
Phillips Petroleum Co
Original Assignee
Phillips Petroleum Co
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 Phillips Petroleum Co filed Critical Phillips Petroleum Co
Priority to US108060A priority Critical patent/US3680334A/en
Priority to JP10180171A priority patent/JPS4714420A/ja
Priority to CA132,678A priority patent/CA960055A/en
Priority to CA132,679A priority patent/CA957837A/en
Priority to IT19499/72A priority patent/IT946674B/it
Priority to DE19722202502 priority patent/DE2202502A1/de
Priority to GB256372A priority patent/GB1376062A/en
Priority to FR7201790A priority patent/FR2122971A5/fr
Application granted granted Critical
Publication of US3680334A publication Critical patent/US3680334A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C29/00—Finishing or dressing, of textile fabrics, not provided for in the preceding groups
    • 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
    • D01D10/0481—Supporting filaments or the like during their treatment while in continuous movement the filaments passing through a tube

Definitions

  • ABSTRACT Fibers of propylene polymers and the like are passed rapidly through an elongated oval chamber by means of a pair of tensioning means wherein they are subjected to saturated steam to give a soil resistant resilient product.
  • FIG. 1 is a side view partially in section of an apparatus in accordance with the invention
  • FIG. 2 is a cross-section along lines 2-2 of FIG. 1;
  • FIG. 4 is a cross-section of an apparatus in accordance with an alternative embodiment of the invention.
  • the apparatus of this invention can be relatively short and still provide the required treatment while moving the tow at a commercially acceptable rate.
  • the length of the treating section will be within the range of l to 10, preferably 2 to 5 feet.
  • the aspect ratio or ratio of the major to minor axis of a cross-section of the elongated oval chamber will generally be in the range of 2:1 to 200:1, preferably 25:1 to 200:1.
  • the apparatus can be made of a conventional construction material as for instance steelor aluminum.
  • Any conventional tow handling means can be utilized for transporting the tow through the treating chamber under tension.
  • a preferred means which is readily adapted to commercial use is simply a set of three rollers at each end over which the yarn passes.
  • Means can be provided to vary the relative speed of the first and second rolling zones so that the tension on the fibers may be sufficient to prevent any shrinkage or may be only sufficient to prevent undue shrinkage. Generally, the tension will be such that the final length of a section of the fiber after treating is -100 percent, preferably -100 percent of the original length.
  • This invention allows effective treatment of large denier tow at line speeds of to 250, preferably to 150, meters per minute.
  • saturated steam as opposed to superheated steam is introduced into the annulus between the elongated oval treating chamber and the jacket (or into separate enclosures around the flat sides of the treating chamber).
  • the steam at this point is under a pressure of about 55-90, preferably 70-80 psig.
  • the time as well as steam temperature and pressure must be correlated so that no substantial melting of the tow results.
  • the tow will be heated to a temperature of 10 to 35 C. below the melting point of the polymer constituting the tow.
  • the preferred temperature to which the tow will be heated is within the range of to 160 C.
  • the fibers treated utilizing the apparatus of this invention have improved resilience due to reordering of the crystal structure.
  • Polypropylene fibers as normally spun and drawn are characterized by imperfect crystals of length in the fiber axis direction of less than 100A, typically in the range of 85-l00A.
  • the fibers treated in the apparatus of the instant invention exhibit crystal size of l25200A, preferably -160A with a corresponding improvement in resiliency.
  • the same apparent crystal structure can be obtained by heating in an air oven for 30- 60-minutes but the resulting polymer has an increased tendency to soil whereas the fibers treated with the apparatus of this invention does not.
  • This apparatus is of particular utility in the treatment of fibers made "from propylene polymers including homopolymers and copolymers having a small amount of a monomer other than propylene and also in the treatment of fibers made of blends wherein a propylene polymer is amajor constituent.
  • propylene polymers including homopolymers and copolymers having a small amount of a monomer other than propylene
  • a propylene polymer is amajor constituent.
  • conventional additives such as stabilizers, pigments, and the like can be present.
  • a tow comprising a large number of individual fibers or filaments.
  • the oval cross-sectional shape allows large denier tow to be treated rapidly and uniformly so as to achieve the improvement infresilience without harm to'the soiling characteristics. further the treatment is more uniform since "the flattened tow is penetrated and contacted by the steam.
  • the tow will have a denier of greater than"l00,000, preferably 250,000 to 750,000 denier.
  • the tow expands to essentially fillthe oval treating chamber. This makes possible efficient use of the steam without the need forseals at each end of the elongated oval chamber which further facilitates treatment at commercially feasible rates.
  • FIG. 1 An apparatus for conditioning tow in accordance with the invention.
  • a continuous length of tow is fed through a first tensioning means comprising rollers l2, l4 and 16, which in combination with a second tensioning means made up of rollers 18, and 22, serve as a tensioning means to maintain tension on the tow as it passes through a treating zone.
  • the tow passes through oval chamber 24 which has-a flared forward end 26.
  • Chamber 24 has a second open end 28.
  • Surrounding oval chamber 24 is jacket 30 which is sealed around each end thereof to oval chamber 24.
  • Jacket 30 contains steam introduction means 32. The steam exhausts both at end 26 and with the tow at the second end 28.
  • tube 24' has an oval cross-section with opposed generally flat walls 36 at each end of a major axis thereof and generally flat walls 38 at opposite ends of a minor axis thereof.
  • FIG. 3 it is shown a longitudinal section of jacket 30 showing holes 40 and oval chamber 24.
  • steam enters through inlets 32 and into the annular space between jacket 30 and oval chamber 24 and thence through holes 40 into contact with tow 10.
  • This contact of steam with tow 10 causes the tow to flufi out as can be seen from FIG. 1 to substantially fill the space within the tube 24.
  • Saturated steam was used as the treating fluid at a temperature of 157 C. and a pressure of psig Residence time for treating tow in the apparatus was 0.5 seconds. Both treated and untreated samples were made. Samples were cut into staple 1% inches long. One gram samples were taken from the prepared staple'and hand carded. The samples were placed in a 1-inch diameter die and compressed at 10,000 psi for 1 minute. Measurements of returned plug height were taken after 30 seconds and 24 hours. Crystal lengths of both samples were measured by small angle X-ray diffraction. The treated samples, had a longer crystal length and exhibited a higher degree of resilience by plug height measurement as shown in Table l and was a satisfactory product for carpet yarn.
  • an elongated oval chamber having a tow receiving opening at a first end thereof and an exit opening at a second end thereof, said chamber having a ratio of the major axis to minor axis of from 2:l to 200:1, said chamber having a plurality of holes therein;
  • Apparatus according to claim 1 wherein said means for transporting said tow through said oval chamber comprises a first set of three rolls at the forward end of said oval chamber and a second set of three rolls at the exit end thereof.
  • said means for transporting said tow through said chamber comprises a first set of three rolls that the forward end of said chamber and a second set of three rolls at the exit end thereof;
  • holes are arranged in a generally spiral configuration on said chamber and are spaced axially apart a distance of 0.5 to 0.7 inches and have a diameter within the range of 15-50 mils;
  • said chamber has a length in the range of 2 to 5 feet.
  • Apparatus according to claim 9 wherein said means for transporting said tow through said oval chamber comprises a first set of three rolls at the forward end of said oval chamber and a second set of three rolls at the exit end thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US108060A 1971-01-20 1971-01-20 Apparatus having chamber of oval cross-section for heat treating largedenier tow Expired - Lifetime US3680334A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US108060A US3680334A (en) 1971-01-20 1971-01-20 Apparatus having chamber of oval cross-section for heat treating largedenier tow
JP10180171A JPS4714420A (de) 1971-01-20 1971-12-15
CA132,679A CA957837A (en) 1971-01-20 1972-01-18 Production of resilient fiber of propylene polymer
IT19499/72A IT946674B (it) 1971-01-20 1972-01-18 Processo e apparecchio per la produzione di fibre resilienti di polimero propilenico
CA132,678A CA960055A (en) 1971-01-20 1972-01-18 Apparatus having chamber of oval cross-section for heat treating large denier tow
DE19722202502 DE2202502A1 (de) 1971-01-20 1972-01-19 Verfahren und Vorrichtung zur Herstellung elastischer Fasern aus Propylenpolymerisaten
GB256372A GB1376062A (en) 1971-01-20 1972-01-19 Process and apparatus for production of resilient fibre of propylene polymer
FR7201790A FR2122971A5 (de) 1971-01-20 1972-01-19

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10805971A 1971-01-20 1971-01-20
US108060A US3680334A (en) 1971-01-20 1971-01-20 Apparatus having chamber of oval cross-section for heat treating largedenier tow

Publications (1)

Publication Number Publication Date
US3680334A true US3680334A (en) 1972-08-01

Family

ID=26805478

Family Applications (1)

Application Number Title Priority Date Filing Date
US108060A Expired - Lifetime US3680334A (en) 1971-01-20 1971-01-20 Apparatus having chamber of oval cross-section for heat treating largedenier tow

Country Status (7)

Country Link
US (1) US3680334A (de)
JP (1) JPS4714420A (de)
CA (2) CA957837A (de)
DE (1) DE2202502A1 (de)
FR (1) FR2122971A5 (de)
GB (1) GB1376062A (de)
IT (1) IT946674B (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3761977A (en) * 1971-09-17 1973-10-02 S Rappoport Process and apparatus for treatment of textile materials
DE2414445A1 (de) * 1973-03-26 1974-10-10 Usinor Vorrichtung zum khlen von blechen
US3911539A (en) * 1972-12-29 1975-10-14 Phillips Petroleum Co Method for crimping synthetic thermoplastic fibers
US4136535A (en) * 1974-04-08 1979-01-30 Audas Francis G Padding apparatus for goods in web-form
US4258457A (en) * 1972-12-29 1981-03-31 Phillips Petroleum Company Method for coating and crimping synthetic thermoplastic
US5479792A (en) * 1991-11-06 1996-01-02 Sunds Defibrator Industries Aktiebolag Heating arrangement
US5945215A (en) * 1996-09-16 1999-08-31 Bp Amoco Corporation Propylene polymer fibers and yarns
US6716511B2 (en) 1996-09-16 2004-04-06 Bp Corporation North America Inc. Propylene polymer fibers and yarns
US20050260380A1 (en) * 2004-05-20 2005-11-24 Moon Richard C Tuftable carpet backings and carpets with enhanced tuft holding properties
WO2009155758A1 (zh) * 2008-06-23 2009-12-30 武汉科技学院 一种可减少纱线毛羽的纺纱装置
CN102051718A (zh) * 2010-11-08 2011-05-11 武汉纺织大学 一种对须条进行湿热熨烫处理的纺纱方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3534786A1 (de) * 1984-10-03 1986-04-17 S.V.Z. S.n.c., Agliana, Pistoia Vorrichtung zum kontinuierlichen behandeln mit dampf eines bandes von textilfasern
JP2584718Y2 (ja) * 1992-09-14 1998-11-05 積水化成品工業株式会社 運搬用台車
CN1160492C (zh) 1998-03-31 2004-08-04 宇部日东化成株式会社 拉伸方法和拉伸产物

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2353615A (en) * 1939-03-29 1944-07-11 Buffalo Electro Chem Co Method of heating goods
US3137152A (en) * 1962-12-26 1964-06-16 Du Pont Apparatus for the treatment of filamentary material
US3240037A (en) * 1963-10-03 1966-03-15 Monsanto Co Continuous annealer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2353615A (en) * 1939-03-29 1944-07-11 Buffalo Electro Chem Co Method of heating goods
US3137152A (en) * 1962-12-26 1964-06-16 Du Pont Apparatus for the treatment of filamentary material
US3240037A (en) * 1963-10-03 1966-03-15 Monsanto Co Continuous annealer

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3761977A (en) * 1971-09-17 1973-10-02 S Rappoport Process and apparatus for treatment of textile materials
US3911539A (en) * 1972-12-29 1975-10-14 Phillips Petroleum Co Method for crimping synthetic thermoplastic fibers
US4258457A (en) * 1972-12-29 1981-03-31 Phillips Petroleum Company Method for coating and crimping synthetic thermoplastic
DE2414445A1 (de) * 1973-03-26 1974-10-10 Usinor Vorrichtung zum khlen von blechen
US4136535A (en) * 1974-04-08 1979-01-30 Audas Francis G Padding apparatus for goods in web-form
US5479792A (en) * 1991-11-06 1996-01-02 Sunds Defibrator Industries Aktiebolag Heating arrangement
US5945215A (en) * 1996-09-16 1999-08-31 Bp Amoco Corporation Propylene polymer fibers and yarns
WO2000009787A1 (en) * 1996-09-16 2000-02-24 Bp Amoco Corporation Propylene polymer fibers and yarns
US6716511B2 (en) 1996-09-16 2004-04-06 Bp Corporation North America Inc. Propylene polymer fibers and yarns
US20050260380A1 (en) * 2004-05-20 2005-11-24 Moon Richard C Tuftable carpet backings and carpets with enhanced tuft holding properties
WO2009155758A1 (zh) * 2008-06-23 2009-12-30 武汉科技学院 一种可减少纱线毛羽的纺纱装置
CN102051718A (zh) * 2010-11-08 2011-05-11 武汉纺织大学 一种对须条进行湿热熨烫处理的纺纱方法

Also Published As

Publication number Publication date
CA957837A (en) 1974-11-19
JPS4714420A (de) 1972-08-09
IT946674B (it) 1973-05-21
GB1376062A (en) 1974-12-04
CA960055A (en) 1974-12-31
DE2202502A1 (de) 1972-08-10
FR2122971A5 (de) 1972-09-01

Similar Documents

Publication Publication Date Title
US3680334A (en) Apparatus having chamber of oval cross-section for heat treating largedenier tow
US3069836A (en) Yarn relaxation process using fluid jets
US3470685A (en) Synthetic textile yarn
US3714686A (en) Process and apparatus for texturing filaments
US2296394A (en) Manufacture of novelty artificial yarn
GB900009A (en) Melt spinning process
US3781949A (en) Process and apparatus for jet-texturing yarn at high speed
US3346932A (en) Methods for relaxing synthetic fiber filaments
US3559965A (en) Apparatus for heating synthetic filaments
GB1121871A (en) Treatment of oriented crystalline polyester filaments
US3438101A (en) Process and apparatus for texturizing yarn
US3364294A (en) Filament orientation process
US3287784A (en) Crimping method and apparatus
US3650001A (en) Yarn texturing apparatus
CA2096049A1 (en) Gasketing and sealing material
US4242862A (en) Multifilament yarn having novel configuration and a method for producing the same
US3523345A (en) Yarn texturing method
US2495053A (en) Drying of yarns and the like
US3394429A (en) Apparatus for stretching thermoplastic synthetic fibers
US3073002A (en) Non-distorting polypropylene fibers
US3421194A (en) Process for treating a filamentary strand
US3707745A (en) Yarn texturing
US3209467A (en) Strand annealers
IT1078457B (it) Procedimento e dispositivo per il trattamento termico di fili tessili
US3421193A (en) Process for crimping multifilament yarn