US3520068A - Process and apparatus for the treatment of textile materials subjected to a longitudinal stress - Google Patents

Process and apparatus for the treatment of textile materials subjected to a longitudinal stress Download PDF

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Publication number
US3520068A
US3520068A US737916A US3520068DA US3520068A US 3520068 A US3520068 A US 3520068A US 737916 A US737916 A US 737916A US 3520068D A US3520068D A US 3520068DA US 3520068 A US3520068 A US 3520068A
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Prior art keywords
sieve drum
treatment
holding
subjected
textile materials
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Expired - Lifetime
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US737916A
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English (en)
Inventor
Heinz Fleissner
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Vepa AG
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Vepa AG
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Publication date
Priority claimed from DE1635353A external-priority patent/DE1635353C3/de
Application filed by Vepa AG filed Critical Vepa AG
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B7/00—Mercerising, e.g. lustring by mercerising
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
    • D06B3/20—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics with means to improve the circulation of the treating material on the surface of the fabric
    • D06B3/201—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics with means to improve the circulation of the treating material on the surface of the fabric the treating material being forced through the textile material
    • D06B3/203—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics with means to improve the circulation of the treating material on the surface of the fabric the treating material being forced through the textile material by suction, e.g. by means of perforated drums

Definitions

  • the present disclosure is directed to an apparatus for the treatment of textile materials which comprises a first holding and drawing system and a second holding and drawing system, each of said systems containing several roller means, and at least one permeable heating-up and conveying means subjected to an excess pressure or a suction draft disposed between said first and second holding and drawing systems.
  • the present disclosure is also directed to the process for the treatment of textile materials subjected to a longitudinal stress using the above-described apparatus.
  • the present invention relates to a process and apparatus for the treatment of textile materials subjected to a lengthwise or longitudinal stress, for example for drawing tow of synthetic fibers or for mercerizing yarn or cotton fabric, whereby the textile material is conveyed under a tensile stress on at least one holding and drawing system and on a sieve drum means subjected to a suction draft or a positive pressure.
  • the tows are passed freely hanging through heating ducts in which they are jetted with steam or heated by means of infrared radiation.
  • heating ducts it is important, especially if several tows are arranged side by side so that working widths of about 600 to 1000 mm., for example, are obtained, that the tows are heated up uniformly during the entire treatment process.
  • the known heating ducts it has been attempted to ensure the uniform heating-up of the tows by providing the heating duets with a double jacket housing which is heated by means of a liquid heat carrier, for example diphyl.
  • Heating ducts are also well known in which the material is heated-up by contact with a stationary, heated, usually bent surface usually called an iron, or by drawing the material over several stationary heated tubes.
  • a stationary, heated, usually bent surface usually called an iron
  • these devices incorporate the disadvantages that the outer fibers of the tow are heated up to a greater extent and can be more readily drawn than the inner fibers and thus the fiber properties are influenced differently.
  • the heating ducts have the disadvantage that they must be of considerable length in order to obtain a good material quality. Thus, the heated ducts frequently have lengths of up to about meters.
  • the tows are drawn in a liquid.
  • very long bowls are required.
  • the last or the last two godets of the first drawing system are heated to obtain a quicker heating-up of the material.
  • the running speed can be increased, the heating-up of the material substantially varies, that is, the threads which come into direct contact with the heated godet are heated-up to higher temperatures than the overlying threads or threads which do not contact with the heated godet.
  • An object of thepresent invention is to avoid the prior art disadvantages in the treatment of textile materials subjected to a lengthwise stress.
  • Another object of the present invention is to provide an improved process and apparatus for the treatment of textile materials wherein both the outer and inner fibers of the material being treated are effectively heated-up thereby producing uniform fiber properties.
  • a further object of the present invention is to provide an improved process and apparatus for the treatment of textile materials wherein large and expensive treatment devices are substantially avoided.
  • Still another object of the present invention is to provide an improved process and apparatus for the treatment of textile materials wherein a completely uniform and extremely rapid heating-up or wetting-out of the textile material is effected so that the treatment is considerably equalized and substantially shorter.
  • Such a device may, for example, comprise two holding or drawing systems, each system containing several rollers, with at least one permeable, heating-up and/or conveying element, for example, a sieve drum which is arranged between the drawing systems, and/or instead of at last one godet of the first drawing system.
  • a device which passes the treatment medium flow through the conveying element and the textile material disposed thereon is associated with the permeable conveying element.
  • the treatment medium may include steam, heated air or a liquid. It is advantageous if the permeable conveying element, for example the sieve drum, is accommodated in a treatment chamber and if the holding and drawing sys;
  • tems are arranged outside the treatment chamber at the inlet and at the discharge end of said chamber, in order to draw the textile material over the sieve drum means.
  • the sieve drum means may be subjected to a suction draft or to an excess pressure (blowing effect) and may be supported as rotating or stationary.
  • a godet of a drawing system is designed as a perforated roller as well as when a perforated sieve drum is provided between the holding and drawing systems, it is advantageous to arrange the holding and drawing systems in a treatment chamber. It is thereby possible to expose the holding and drawing systems to the recirculating treat ment medium atmosphere. However, in some cases it is more expedient to separate the treatment chamber with the recirculated treatment medium from the holding and drawing systems by means of partitions.
  • the sieve drum jacket polishes the sieve drum jacket and to provide it with small perforations, preferably perforations with a hole diameter of less than about mm. Because of the substantial tensile stress, the sieve drum jacket must be very rugged. Thus, sheets with a thickness of 3 mm. must generally be used. However, since with this thickness it is not possible to punch a perforation with a small hole diameter, it is suggested to make the sieve drum with a thick metal jacket with large holes and to arrange over the metal jacket a widemeshed wire mesh fabric or other supporting elements and dispose on the wire mesh and/or the supporting element a thin polished metal jacket with small perforations.
  • Such a drum can be manufactured much more readily and at less expense than a thick-walled drum with small holes, which would have to be drilled.
  • a mercerizing bath generally a pair of squeeze rollers sufiices as a holding system.
  • the apparatus of the present invention comprises a heat-insulated housing 1 containing a drawing system 2 a sieve drum 3 subjected to a suction draft and a second drawing system 4.
  • the textile material 5 to be treated is penetrated on the sieve drum by steam or heated air and is thus heated to the drawing temperature uniformly and shock-like.
  • a baffle 6 is provided at that portion of said sieve drum which is not covered with the material being treated.
  • two rollers 7 are provided for a reinforced support of the sieve drum.
  • a blower 8 is provided for readily detaching the textile material from said drum so that even at very high speeds, breakage of the fibrils of the tows is effectively avoided.
  • this blower By using this blower, the danger of lap formation in case of fibrils and/or tow breakage is also widely eliminated.
  • the sieve drum 3 is subjected to an excess internal pressure (blowing effect), so that the treatment medium, for example air or steam, is blown out of the sieve drums and through the material disposed therein.
  • the treatment medium for example air or steam
  • an additional blower at the discharge side of the sieve drum is not required.
  • the holding and drawing systems 2 and 4 are separated from a treatment chamher 9 through which the steam flows by means of partitions 10 which preferably are arranged at the same level or at a lower level than the baffle, so that a flow of the treatment medium into the space where the drawing systems are disposed is substantially avoided.
  • the apparatus according to FIG. 3 is utilized for wetdrawing. It has no common closed housing for the treatment medium but rather a sieve drum 3- which is immersed in a separate bath 11 is correlated to the drawing systems 2 and 4.
  • bafiies 12 and at least one pump 13 with a motor 14 which is situated outside the liquid are provided in the sieve drum.
  • the pump draws in the treatment liquid in one area and discharges it in another area. It is advantageous if the liquid is drawn in in the inlet area and is discharge in the discharge area of the sieve drum, since in this way proper detachment of the material from the sieve drum is ensured, even at very high speeds, for example at speeds of about to 200 m./ min.
  • a stripper 15 is arranged behind the sieve drum 3 and in front of the drawing system 4. This stripper may be arranged at the outer side as well as the inner side of the material being treated or at both sides if necessary.
  • An apparatus for reducing the elongation and increasing the tensile strength of textile materials which comprises a substantially heat-insulated treatment chamber, a first holding and drawing system and a second holding and drawing system for conveying the material under tension, each of said systems containing a plurality of roller means, and at least one permeable heating-up and conveying means subjected to an excess pressure or a suction draft disposed between said first and second holding and drawing systems, said first and second holding and drawing systems and the permeable heating-up and conveying means being rotatably disposed in said treatment chamber.
  • the conveying means is a sieve drum means subjected to a suction draft and contains a battle means at that portion of the sieve drum means which is not covered with the material being treated, said sieve drum means containing a blower means at the discharge side of the sieve drum means where the baffle means interrupts the suction draft, thereby facilitating the removal of the material being treated from the sieve drum means.
  • roller means of the holding and drawing systems are disposed in two rows, staggered with respect to each other.
  • the conveying means is a sieve drum means subjected to a positive internal pressure and contains a bafile means at that portion of the sieve drum means which is not covered with the material being treated.
  • partition means are provided at the baffle means to separate said housing into an upper treatment chamber and a lower chamber, the surface of the sieve drum means containing the material being treated being disposed in the treatment chamber and the holding and drawing systems being disposed in the lower chamber.
  • roller means of the holding and drawing systems are disposed in two rows, staggered with respect to each other.
  • the conveying means is a sieve drum means disposed in a treatment bath containing a treatment liquor said sieve drum means containing baffle means associated with at least one pump means such that the treatment liquor is drawn into the sieve drum means through the material disposed thereon in one area and discharged from the sieve drum means through the material disposed thereon in another area.
  • roller means are associated with the upper portion of the sieve drum means.
  • roller means of the holding and drawing systems are disposed in two rows, staggered with respect to each other.
  • the sieve drum means comprises a thick metal jacket with large holes said jacket containing a wide-meshed wire mesh cover and provided with a polished metal jacket with small perforations.
  • a process for drawing synthetic fibers and for mercerizing cellulosic fibers which comprises conveying said material under a tensile stress through a heated treatment medium on a first holding and drawing system, drawing said fibers to orient the filament molecules thereby enhancing the chemical and physical properties thereof, conveying said material on a sieve drum means subjected to a suction draft or a positive pressure and conveyning said material on a second holding and drawing system, said materials being penetrated by the treatment medium during said treatment.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
US737916A 1967-06-23 1968-06-18 Process and apparatus for the treatment of textile materials subjected to a longitudinal stress Expired - Lifetime US3520068A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1635353A DE1635353C3 (de) 1967-06-23 1967-06-23 Streckvorrichtung zum Warmverstrecken von insbesondere Kabeln aus Chemiefasern

Publications (1)

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US3520068A true US3520068A (en) 1970-07-14

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US737916A Expired - Lifetime US3520068A (en) 1967-06-23 1968-06-18 Process and apparatus for the treatment of textile materials subjected to a longitudinal stress

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US (1) US3520068A (en:Method)
BE (1) BE716929A (en:Method)
FR (1) FR1573355A (en:Method)
GB (1) GB1188052A (en:Method)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1685427A (en) * 1927-08-09 1928-09-25 Otaka Fabric Company Machine and process for drying crinkled paper
US2174744A (en) * 1937-02-03 1939-10-03 Harold S Hill Apparatus for pressing a moving web in paper making machines
US3430352A (en) * 1966-03-02 1969-03-04 Vepa Ag Method and apparatus for the heat-treatment of materials which can be stressed in a longitudinal direction

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1685427A (en) * 1927-08-09 1928-09-25 Otaka Fabric Company Machine and process for drying crinkled paper
US2174744A (en) * 1937-02-03 1939-10-03 Harold S Hill Apparatus for pressing a moving web in paper making machines
US3430352A (en) * 1966-03-02 1969-03-04 Vepa Ag Method and apparatus for the heat-treatment of materials which can be stressed in a longitudinal direction

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Publication number Publication date
BE716929A (en:Method) 1968-12-02
GB1188052A (en) 1970-04-15
FR1573355A (en:Method) 1969-07-04

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