EP0069436B1 - Apparatus for continuously reducing the weight of fabrics of polyester fibers with alkali - Google Patents

Apparatus for continuously reducing the weight of fabrics of polyester fibers with alkali Download PDF

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Publication number
EP0069436B1
EP0069436B1 EP82300691A EP82300691A EP0069436B1 EP 0069436 B1 EP0069436 B1 EP 0069436B1 EP 82300691 A EP82300691 A EP 82300691A EP 82300691 A EP82300691 A EP 82300691A EP 0069436 B1 EP0069436 B1 EP 0069436B1
Authority
EP
European Patent Office
Prior art keywords
fabric
steamer
chamber
weight
vessel
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
Application number
EP82300691A
Other languages
German (de)
French (fr)
Other versions
EP0069436A1 (en
Inventor
Masahiro Arashi
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.)
Komatsu Seiren Co Ltd
Onomori Iron Works Co Ltd
Original Assignee
Komatsu Seiren Co Ltd
Onomori Iron Works Co Ltd
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 Komatsu Seiren Co Ltd, Onomori Iron Works Co Ltd filed Critical Komatsu Seiren Co Ltd
Publication of EP0069436A1 publication Critical patent/EP0069436A1/en
Application granted granted Critical
Publication of EP0069436B1 publication Critical patent/EP0069436B1/en
Expired legal-status Critical Current

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Classifications

    • 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
    • D06B21/00—Successive treatments of textile materials by liquids, gases or vapours
    • 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
    • D06B19/00—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00

Definitions

  • the present invention relates to an apparatus for continuously reducing the weight of knitted and woven fabrics of polyester fibers.
  • This is effected by applying, by for example a padder, to the fabric or textile material an aqueous solution of 70 to 90% by weight based on the weight of the textile material and containing D.5 to 2.5% by weight of sodium hydroxide, subjecting the padded textile material to steam, using for example a J-box steam chamber, while maintaining the moisture content thereof to at least 35% by weight of the weight of the textile material so as to remove 0.4 to 2.5% by weight of the polyester, and thereafter washing the textile material, using for example a three-zone washer, to remove unreacted sodium hydroxide.
  • apparatus for continuously reducing with alkali the weight of fabric made of polyester fibers, comprising, in series a padder for uniformly applying an alkali solution, that serves as a hydrolyzing agent, to the fabric; a steamer chamber, operating at a temperature of 100°C to 125°C, for promoting the hydrolysis of fabric impregnated with the alkali solution, said steamer chamber being provided with a ceiling and, in an upper portion of the chamber, with indirect steamer pipes for preventing condensation on the ceiling of said steamer chamber, and also being provided with direct steamer pipes for controlling the temperature of said steamer chamber; means for washing the fabric with water in order to remove hydrolyzed products from the fabric, said washing means comprising a plurality of superimposed stages of which at least one comprises a vessel containing water, feed rolls in said vessel for transporting the fabric, squeezing guide bars over which the fabric runs, and holder rolls cooperating with said feed rolls to squeeze the fabric; and a device for drying the fabric.
  • Fig. 1 is a plan view schematically illustrating the apparatus according to an embodiment of the present invention
  • Fig. 2 is a side view showing the apparatus of Fig. 1.
  • reference numeral 1 denotes a vessel, containing an alkali solution, into which fabrics are dipped
  • 2 denotes nip rolls made of a rubber.
  • the fabric to be treated is immersed in the alkali solution in the vessel 1, and is nipped through the rolls 2 so that it is impregnated with the alkali solution at a desired pick-up.
  • a steamer chamber 3 accommodates indirect steamer pipes 4 for preventing the formation of dew on the ceiling, direct steamer pipes 5 for adjusting the temperature, and large and small feed rolls 6 for conveying the fabric when it is spread out.
  • the temperature can be suitably adjusted over a range of 100°C to 125°C.
  • the fabric which is hydrolyzed as it goes through the steamer chamber 3 and the weight of which is reduced with alkali, is then introduced into a vessel 7 containing water for washing the fabric, wherein the hydrolyzed products contained in the fabric are removed in a plurality of stages by washing the fabric with water.
  • Feed rolls 8 and squeezing guide bars 9 are provided in the vessel 7, and holder rollers 10 are disposed on the feed rolls 8 to squeeze the fabric by nipping.
  • the fabric, coming from the vessel 7, is then dried as it goes through an ordinary drying machine 11 made up of cylinders.

Description

    Background of the Invention
  • The present invention relates to an apparatus for continuously reducing the weight of knitted and woven fabrics of polyester fibers.
  • In French Patent Specification No. 2,313,493 there is disclosed the treatment of fabric or textile material containing polyester fibers with sodium hydroxide solution to improve the soil release and wettability properties thereof using a continuous process in which the amount of polyester removed is relatively small and is controlled by the limited amount of sodium hydroxide present on the fibers.
  • This is effected by applying, by for example a padder, to the fabric or textile material an aqueous solution of 70 to 90% by weight based on the weight of the textile material and containing D.5 to 2.5% by weight of sodium hydroxide, subjecting the padded textile material to steam, using for example a J-box steam chamber, while maintaining the moisture content thereof to at least 35% by weight of the weight of the textile material so as to remove 0.4 to 2.5% by weight of the polyester, and thereafter washing the textile material, using for example a three-zone washer, to remove unreacted sodium hydroxide.
  • It is an object of the present invention to provide a specific apparatus for carrying out the process generally disclosed in the aforesaid French Patent Specification and which achieves a very uniform weight reduction of the fabric and which obviates undesirably poor reduction or over reduction of the weight of polyester fabric. According to the present invention, there is provided apparatus, for continuously reducing with alkali the weight of fabric made of polyester fibers, comprising, in series a padder for uniformly applying an alkali solution, that serves as a hydrolyzing agent, to the fabric; a steamer chamber, operating at a temperature of 100°C to 125°C, for promoting the hydrolysis of fabric impregnated with the alkali solution, said steamer chamber being provided with a ceiling and, in an upper portion of the chamber, with indirect steamer pipes for preventing condensation on the ceiling of said steamer chamber, and also being provided with direct steamer pipes for controlling the temperature of said steamer chamber; means for washing the fabric with water in order to remove hydrolyzed products from the fabric, said washing means comprising a plurality of superimposed stages of which at least one comprises a vessel containing water, feed rolls in said vessel for transporting the fabric, squeezing guide bars over which the fabric runs, and holder rolls cooperating with said feed rolls to squeeze the fabric; and a device for drying the fabric.
    • Brief Description of the Drawings
    • Fig. 1 is a plan view schematically illustrating an apparatus according to an embodiment of the present invention; and
    • Fig. 2 is a side view schematically illustrating the apparatus of Fig. 1.
    Description of Preferred Embodiment
  • The invention will be further described below in conjunction with the accompanying drawings.
  • Fig. 1 is a plan view schematically illustrating the apparatus according to an embodiment of the present invention, and Fig. 2 is a side view showing the apparatus of Fig. 1.
  • In the drawings, reference numeral 1 denotes a vessel, containing an alkali solution, into which fabrics are dipped, and 2 denotes nip rolls made of a rubber. The fabric to be treated is immersed in the alkali solution in the vessel 1, and is nipped through the rolls 2 so that it is impregnated with the alkali solution at a desired pick-up. A steamer chamber 3 accommodates indirect steamer pipes 4 for preventing the formation of dew on the ceiling, direct steamer pipes 5 for adjusting the temperature, and large and small feed rolls 6 for conveying the fabric when it is spread out. In the steamer chamber 3, the temperature can be suitably adjusted over a range of 100°C to 125°C. The fabric, which is hydrolyzed as it goes through the steamer chamber 3 and the weight of which is reduced with alkali, is then introduced into a vessel 7 containing water for washing the fabric, wherein the hydrolyzed products contained in the fabric are removed in a plurality of stages by washing the fabric with water. Feed rolls 8 and squeezing guide bars 9 are provided in the vessel 7, and holder rollers 10 are disposed on the feed rolls 8 to squeeze the fabric by nipping. The fabric, coming from the vessel 7, is then dried as it goes through an ordinary drying machine 11 made up of cylinders.

Claims (2)

1. Apparatus, for continuously reducing with alkali the weight of fabric made of polyester fibers, comprising, in series a padder (1, 2) for uniformly applying an alkali solution, that serves as a hydrolyzing agent, to the fabric; a steamer chamber (3), operating at a temperature of 100°C to 125°C, for promoting the hydrolysis of fabric impregnated with the alkali solution, said steamer chamber (3) being provided with a ceiling and, in an upper portion of the chamber, with indirect steamer pipes (4) for preventing condensation on the ceiling of said steamer chamber (3), and also being provided with direct steamer pipes (5) for controlling the temperature of said steamer chamber (3); means for washing the fabric with water in order to remove hydrolyzed products from the fabric, said washing means comprising a plurality of superimposed stages of which at least one comprises a vessel (7) containing water, feed rolls (8) in said vessel (7) for transporting the fabric, squeezing guide bars (9) over which the fabric runs, and holder rolls (10) cooperating with said feed rolls to squeeze the fabric; and a device (11) for drying the fabric.
2. Apparatus according to claim 1, wherein the padder (1, 2) is comprised of a vessel (1), into which fabrics are dipped, and nip rolls (2).
EP82300691A 1981-06-30 1982-02-11 Apparatus for continuously reducing the weight of fabrics of polyester fibers with alkali Expired EP0069436B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP56100499A JPS584866A (en) 1981-06-30 1981-06-30 Continuous alkali weight reducing apparatus
JP100499/81 1981-06-30

Publications (2)

Publication Number Publication Date
EP0069436A1 EP0069436A1 (en) 1983-01-12
EP0069436B1 true EP0069436B1 (en) 1986-05-21

Family

ID=14275618

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82300691A Expired EP0069436B1 (en) 1981-06-30 1982-02-11 Apparatus for continuously reducing the weight of fabrics of polyester fibers with alkali

Country Status (4)

Country Link
EP (1) EP0069436B1 (en)
JP (1) JPS584866A (en)
KR (1) KR850001863B1 (en)
DE (1) DE3271229D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6119860A (en) * 1984-07-02 1986-01-28 株式会社　市金工業社 Continuous alkali weight reduction apparatus
KR101448011B1 (en) * 2013-02-21 2014-10-07 다이텍연구원 Consecutive weight deduction processing device of polyester textile products

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT984050B (en) * 1973-04-20 1974-11-20 Srl Arioli E C PERFECTED EQUIPMENT FOR SELECTIVE TREATMENT WITH VAPO RE SATURATED OR OVERHEATED OF PRINTED TES SUTI
US4008044A (en) * 1975-06-03 1977-02-15 J. P. Stevens & Co., Inc. Treatment of polyester textiles to improve soil release and wettability properties

Also Published As

Publication number Publication date
DE3271229D1 (en) 1986-06-26
KR830009302A (en) 1983-12-19
EP0069436A1 (en) 1983-01-12
KR850001863B1 (en) 1985-12-28
JPS584866A (en) 1983-01-12

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