US3835510A - Baffle for texturing jet and method - Google Patents

Baffle for texturing jet and method Download PDF

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Publication number
US3835510A
US3835510A US00315563A US31556372A US3835510A US 3835510 A US3835510 A US 3835510A US 00315563 A US00315563 A US 00315563A US 31556372 A US31556372 A US 31556372A US 3835510 A US3835510 A US 3835510A
Authority
US
United States
Prior art keywords
baffle
jet
outlet end
yarn
fluid
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
US00315563A
Other languages
English (en)
Inventor
M Koslowski
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to US00315563A priority Critical patent/US3835510A/en
Priority to IT2985/73A priority patent/IT1013564B/it
Priority to JP48138246A priority patent/JPS5133219B2/ja
Priority to CA188,087A priority patent/CA994996A/en
Priority to IE2256/73A priority patent/IE38639B1/xx
Priority to AU63555/73A priority patent/AU485170B2/en
Priority to IL43811A priority patent/IL43811A/en
Priority to DE2362326A priority patent/DE2362326C3/de
Priority to NL737317201A priority patent/NL148662B/xx
Priority to SE7316929A priority patent/SE402473B/xx
Priority to FR7344891A priority patent/FR2210685B1/fr
Priority to BE138906A priority patent/BE808678A/xx
Priority to CH1758773A priority patent/CH576541A5/xx
Priority to ZA739497A priority patent/ZA739497B/xx
Priority to ES421498A priority patent/ES421498A1/es
Priority to NO4778/73A priority patent/NO135429C/no
Priority to BR9790/73A priority patent/BR7309790D0/pt
Priority to AT1047973A priority patent/AT334510B/de
Priority to AR251513A priority patent/AR200506A1/es
Priority to FI3860/73A priority patent/FI54502C/fi
Priority to GB5807373A priority patent/GB1448100A/en
Application granted granted Critical
Publication of US3835510A publication Critical patent/US3835510A/en
Priority to HK289/81A priority patent/HK28981A/xx
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • D02G1/161—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam yarn crimping air jets

Definitions

  • This invention relates to a method and apparatus for treating a yarn with high velocity fluid to increase the bulk of said yarn. More particularly, it concerns texturing yarn while maintaining a baffle in closely spaced relation to the exit of a fluid jet device by a balance of fluid forces.
  • Certain fluid jet processes for bulking or texturing yarn have employed plates positioned at various distances from the jet exit and at various angles to the yarn path to deflect the yarn and fluid from a straight path. Such a plate may be useful for separating the air from the yarn, for reducing the tension on the yarn while it is in the turbulent jet to improve the bulking action and to control the uniformity of the yarn product. These plates normally are in a fixed position relative to the jet during operation.
  • the present invention provides a method and apparatus to automatically adjust for such small variations in initial settings and thus hold to a minimum variations in operability and texturing from position-to-position.
  • yarn 1 enters a jet device 2 through yarn entrance passage 3.
  • Compressed air or other fluid at room temperature enters jet device 2 through pipe 4 and impinges on yarn l at the entrance to treatment channel 5 where the yarn and high velocity fluid travel together to the exit 6 of the treatment channel which has a cross-sectional area 14.
  • baffle plate 8 which in this instance is pivoted to swing freely about hinge point 9.
  • Surrounding exit 6 is end surface 7 of jet device 2.
  • FIG. 2 shows the exit end of a jet device in greater detail.
  • the yarn l and the texturing fluid impinge on baffle plate 8, they exert a certain force F tending to push baffle plate 8 away from the jet exit.
  • the fluid divides and flows away from exit 6 through the space between end surface 7 and baffle plate 8.
  • the velocity of this fluid flow will depend chiefly upon the flow rate of the fluid, the distance between the baffle plate and end surface 7 and the cross-sectional area of the flow path. Due to its velocity, the exiting fluid will have a dynamic pressure lower than atmospheric, in compliance with the Bernouilli Principle.
  • area 13 is very small, force F acting over area 14 will predominate and will push the baffle plate away from the jet. However, it has been found that if area 13 exceeds area 14, the algebraic sum of F and F will usually be lower than the force F exerted by atmospheric pressure on the outer side of the baffle plate, and F will move the baffle plate toward the jet until it reaches a position of equilibrium.
  • area 13 should be more than twice area 14 to'maintain a substantial excess of force holding the baffle near the jet, so that the baffle is not likely to be knocked away from the jet accidently.
  • transparent circular baffle 8 is smaller than outlet end surface 7 of the jet.
  • area 13 mutually shared by end surface 7 and bafile 8 over which the reduced pressure acts, is seen to be appreciably larger than the cross-sectional area 14 of the yarn treatment channel or passage exit 6.
  • FIG. 4 shows an alternate position of baffle plate 8.
  • the baffle when in the equilibrium position may unduly restrict the passage of the yarn.
  • hinge point 9 may be moved closer to jet device 2 so that baffle plate 8 contacts jet device 2 at point 10, thus providing a means for limiting the travel of baffle plate 8 toward the outlet end of the jet and providing a wedge shaped space for yarn and air to exit.
  • the included angle a between the baffle and outlet end of the jet should not exceed 7.
  • the alternate ways of limiting the travel of baffle plate 8toward jet device 2, such as bending the baffle or inserting a stop screw in jet device 2 are readily apparent.
  • FIG. 2 shows a baffle plate considerably larger than the end surface 7 of jet device 2.
  • the end surface 7 of jet device 2 may be very large and the area of the baffle plate adjacent to the exit area may be re-- Jerusalem to adjust the position of equilibrium as in FIG. 3.
  • the position of equilibrium may be varied by varying such factors as the fluid flow rate, the yarn mass, the yarn velocity, area 14 of passage exit 6, the end surface 7 of jet device 2, the area of the baffle plate 8 and the angle between the baffle plate and the end surface of the jet device.
  • the jet device has a small projection 11 surrounding exit 6 of treatment channel 5.
  • the fluid force F in this instance will be the sum of a first force due to the flow of fluid between the end of projection 11, a very small area and the baffle plate and a second force due to the flow of fluid through the wider gap of much larger area between surface 12 and the baffle plate.
  • the equilibrium position usually varies to some extent during operation as the fluid forces and particularly the impact of the yarn on the baffle plate 8 vary, causing some oscillation of the baffle plate. Such oscillation may be damped, if desired, by such means as increasing the mass of baffle plate 8 or other usual engineering means for avoiding resonant conditions.
  • the baffle plate may, for example, be a disc free to float toward and away from jet device 2, subject only to caging or similar restraint to restrict its movement to the desired operating range.
  • the baffle may be an object other than a flat plate, for example, a sphere of sufficient diameter to form a narrow gap with the end of the jet device and of sufficient mutual area 13 at the gap to produce an adequate low pressure zone for maintaining an equilibrium condition.
  • the outlet end surface of the jet may be of shapes other than flat to obtain desired fluid flow conditions in the gap and to control the movement of yarn through the gap.
  • the jet device may also be operated in any position provided that area 13 be adjusted to compensate for the force of gravity on baffle object 8, or that counterdesigned so that the sphere may float freely and maintain position by aerodynamic forces alone without a mechanical restraint.
  • End surface 7 is usually perpendicular to the axis of treatment channel 5, but other angles may be employed.
  • the invention has improved the texturing of other materials such as glass, polyamide, polyester and rayon yarns in single end, parallel and core (differential feed rate) texturing in a wide range of deniers using either dry or wet feed yarns.
  • invention has been disclosed using fluid at room temperature, fluid at elevated temperatures may also be used.
  • a yarn treating apparatus including a jet having inlet and outlet ends connected by a passage through which yarn together with fluid passes for treatment, the improvement comprising: a baffle mounted adjacent to said outlet end for free movement toward and away from said outlet end, said baffle having a surface facing said outlet end, said baffle surface defining with said outlet end a mutually shared area greater in area than the cross-sectional area of the passage at said outlet end.
  • balancing be provided when a hinge point 9 is em- 0 jet at a location of equilibrium for the baffle at said ployed.
  • the jet exit may be

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (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)
US00315563A 1972-12-15 1972-12-15 Baffle for texturing jet and method Expired - Lifetime US3835510A (en)

Priority Applications (22)

Application Number Priority Date Filing Date Title
US00315563A US3835510A (en) 1972-12-15 1972-12-15 Baffle for texturing jet and method
IT2985/73A IT1013564B (it) 1972-12-15 1973-12-12 Deflettore per getto di fluido di trattamenti di filati per regolare piccole variazioni nella portata di flusso del getto onde mantene re uniforme il volume di detto fi lato
CA188,087A CA994996A (en) 1972-12-15 1973-12-13 Baffle for texturing jet and method
IE2256/73A IE38639B1 (en) 1972-12-15 1973-12-13 Method and apparatus for texturing yarns
AU63555/73A AU485170B2 (en) 1972-12-15 1973-12-13 Baffle for texturing jet and method
IL43811A IL43811A (en) 1972-12-15 1973-12-13 Method and apparatus for increasing the bulk of yarn by means of a high velocity fluid
JP48138246A JPS5133219B2 (it) 1972-12-15 1973-12-13
BR9790/73A BR7309790D0 (pt) 1972-12-15 1973-12-14 Aparelho para tratamento de fio e processo respectivo
SE7316929A SE402473B (sv) 1972-12-15 1973-12-14 Sett och anordning for texturering av garn
FR7344891A FR2210685B1 (it) 1972-12-15 1973-12-14
DE2362326A DE2362326C3 (de) 1972-12-15 1973-12-14 Garnbehandlungsvorrichtung
CH1758773A CH576541A5 (it) 1972-12-15 1973-12-14
ZA739497A ZA739497B (en) 1972-12-15 1973-12-14 Method and apparatus to automatically adjust baffle setting
ES421498A ES421498A1 (es) 1972-12-15 1973-12-14 Un aparato para el tratamiento de hilos.
NO4778/73A NO135429C (it) 1972-12-15 1973-12-14
NL737317201A NL148662B (nl) 1972-12-15 1973-12-14 Inrichting voor het behandelen van een garen, omvattende een straallichaam met een kanaal waardoor garen samen met medium kan passeren.
AT1047973A AT334510B (de) 1972-12-15 1973-12-14 Garnbehandlungsvorrichtung
AR251513A AR200506A1 (es) 1972-12-15 1973-12-14 Aparato para texturizar hilo con fluido de velocidad elevada para aumentar el volumen de dicho hilo
FI3860/73A FI54502C (fi) 1972-12-15 1973-12-14 Garntextureringsanordning
GB5807373A GB1448100A (en) 1972-12-15 1973-12-14 Method and apparatus for texturing yarns
BE138906A BE808678A (fr) 1972-12-15 1973-12-14 Perfectionnement a la texturation d'un fil au moyen d'un jet de fluide
HK289/81A HK28981A (en) 1972-12-15 1981-06-25 Method and apparatus for texturing yarns

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00315563A US3835510A (en) 1972-12-15 1972-12-15 Baffle for texturing jet and method

Publications (1)

Publication Number Publication Date
US3835510A true US3835510A (en) 1974-09-17

Family

ID=23225006

Family Applications (1)

Application Number Title Priority Date Filing Date
US00315563A Expired - Lifetime US3835510A (en) 1972-12-15 1972-12-15 Baffle for texturing jet and method

Country Status (21)

Country Link
US (1) US3835510A (it)
JP (1) JPS5133219B2 (it)
AR (1) AR200506A1 (it)
AT (1) AT334510B (it)
BE (1) BE808678A (it)
BR (1) BR7309790D0 (it)
CA (1) CA994996A (it)
CH (1) CH576541A5 (it)
DE (1) DE2362326C3 (it)
ES (1) ES421498A1 (it)
FI (1) FI54502C (it)
FR (1) FR2210685B1 (it)
GB (1) GB1448100A (it)
HK (1) HK28981A (it)
IE (1) IE38639B1 (it)
IL (1) IL43811A (it)
IT (1) IT1013564B (it)
NL (1) NL148662B (it)
NO (1) NO135429C (it)
SE (1) SE402473B (it)
ZA (1) ZA739497B (it)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881232A (en) * 1974-06-26 1975-05-06 Enterprise Machine & Dev Resonant baffle for yarn texturing air jet
US3979805A (en) * 1975-03-20 1976-09-14 Enterprise Machine And Development Corporation Resiliently supported baffle for yarn texturing air jet
DE2633264A1 (de) * 1975-07-24 1977-02-17 Du Pont Texturiervorrichtung
US4041583A (en) * 1976-05-20 1977-08-16 E. I. Du Pont De Nemours And Company Yarn texturing jet
US4097975A (en) * 1976-07-29 1978-07-04 Heberlein Maschinenfabrik Ag Nozzle assembly for texturing synthetic filaments
DE2755841A1 (de) * 1977-06-24 1979-01-18 Toray Industries Garn-texturiervorrichtung
US4861535A (en) * 1985-06-14 1989-08-29 Hoechst Aktiengesellschaft Process for preparing formable sheet structures
US4922593A (en) * 1988-04-07 1990-05-08 E. I. Du Pont De Nemours And Company System for preparing highly coherent air jet textured yarn
US4945618A (en) * 1988-04-07 1990-08-07 E. I. Du Pont De Nemours And Company Air texturing jet
US5020199A (en) * 1988-04-07 1991-06-04 E. I. Du Pont De Nemours And Company Air texturing jet
US5174936A (en) * 1985-06-14 1992-12-29 Hoechst Aktiengesellschaft Process for preparing yarn component suitable for use in formable sheet structures
DE19543631A1 (de) * 1995-09-20 1997-04-10 Heberlein & Co Ag Verfahren und Vorrichtung zum Texturieren
US6170302B1 (en) 1998-09-30 2001-01-09 Ethicon, Inc. Method and apparatus for continuously cleaning yarn fibers

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5911700B2 (ja) * 1976-11-05 1984-03-17 東レ株式会社 糸処理方法
CN104480602A (zh) * 2014-11-27 2015-04-01 青海喜马拉雅地毯有限公司 一种生产膨化变形长丝的膨化变形管

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2638146A (en) * 1949-01-07 1953-05-12 Glas Kraft Inc Reinforced paper and method and apparatus for the manufacture thereof
US2874444A (en) * 1954-02-17 1959-02-24 Du Pont Production of curly yarn
US2932935A (en) * 1956-06-22 1960-04-19 British Celanese Apparatus for the treatment of yarns
US3217482A (en) * 1963-08-30 1965-11-16 Monsanto Co Apparatus for texturizing yarn

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2638146A (en) * 1949-01-07 1953-05-12 Glas Kraft Inc Reinforced paper and method and apparatus for the manufacture thereof
US2874444A (en) * 1954-02-17 1959-02-24 Du Pont Production of curly yarn
US2932935A (en) * 1956-06-22 1960-04-19 British Celanese Apparatus for the treatment of yarns
US3217482A (en) * 1963-08-30 1965-11-16 Monsanto Co Apparatus for texturizing yarn

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881232A (en) * 1974-06-26 1975-05-06 Enterprise Machine & Dev Resonant baffle for yarn texturing air jet
US3979805A (en) * 1975-03-20 1976-09-14 Enterprise Machine And Development Corporation Resiliently supported baffle for yarn texturing air jet
DE2633264A1 (de) * 1975-07-24 1977-02-17 Du Pont Texturiervorrichtung
US4041583A (en) * 1976-05-20 1977-08-16 E. I. Du Pont De Nemours And Company Yarn texturing jet
US4097975A (en) * 1976-07-29 1978-07-04 Heberlein Maschinenfabrik Ag Nozzle assembly for texturing synthetic filaments
DE2755841A1 (de) * 1977-06-24 1979-01-18 Toray Industries Garn-texturiervorrichtung
US4861535A (en) * 1985-06-14 1989-08-29 Hoechst Aktiengesellschaft Process for preparing formable sheet structures
US5174936A (en) * 1985-06-14 1992-12-29 Hoechst Aktiengesellschaft Process for preparing yarn component suitable for use in formable sheet structures
US4945618A (en) * 1988-04-07 1990-08-07 E. I. Du Pont De Nemours And Company Air texturing jet
US5020199A (en) * 1988-04-07 1991-06-04 E. I. Du Pont De Nemours And Company Air texturing jet
US4922593A (en) * 1988-04-07 1990-05-08 E. I. Du Pont De Nemours And Company System for preparing highly coherent air jet textured yarn
DE19543631A1 (de) * 1995-09-20 1997-04-10 Heberlein & Co Ag Verfahren und Vorrichtung zum Texturieren
DE19543631C2 (de) * 1995-09-20 1998-01-22 Heberlein Fasertech Ag Verfahren und Vorrichtung zum Texturieren
US6148490A (en) * 1995-09-20 2000-11-21 Heberlein Fibertechnology, Inc. Process and device for texturing at least one endless filament yarn
US6170302B1 (en) 1998-09-30 2001-01-09 Ethicon, Inc. Method and apparatus for continuously cleaning yarn fibers
US6383229B2 (en) 1998-09-30 2002-05-07 Ethicon, Inc. Method and apparatus for continuously cleaning yarn fibers

Also Published As

Publication number Publication date
AT334510B (de) 1976-01-25
BE808678A (fr) 1974-06-14
AR200506A1 (es) 1974-11-15
NL148662B (nl) 1976-02-16
CA994996A (en) 1976-08-17
CH576541A5 (it) 1976-06-15
IE38639L (en) 1974-06-15
ATA1047973A (de) 1976-05-15
AU6355573A (en) 1975-06-19
DE2362326C3 (de) 1981-01-29
ZA739497B (en) 1974-11-27
FR2210685A1 (it) 1974-07-12
ES421498A1 (es) 1976-07-16
GB1448100A (en) 1976-09-02
SE402473B (sv) 1978-07-03
IT1013564B (it) 1977-03-30
IL43811A (en) 1976-08-31
FI54502B (fi) 1978-08-31
FI54502C (fi) 1978-12-11
HK28981A (en) 1981-07-03
JPS4987845A (it) 1974-08-22
DE2362326B2 (de) 1975-08-21
DE2362326A1 (de) 1974-07-04
NL7317201A (it) 1974-06-18
IE38639B1 (en) 1978-04-26
IL43811A0 (en) 1974-03-14
BR7309790D0 (pt) 1974-09-24
NO135429C (it) 1977-04-05
NO135429B (it) 1976-12-27
JPS5133219B2 (it) 1976-09-18
FR2210685B1 (it) 1978-03-03

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