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 PDFInfo
- 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
Links
- 239000004744 fabric Substances 0.000 title claims description 33
- 239000003513 alkali Substances 0.000 title claims description 11
- 229920000728 polyester Polymers 0.000 title claims description 8
- 239000000835 fiber Substances 0.000 title claims description 6
- 238000005406 washing Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 230000007062 hydrolysis Effects 0.000 claims description 2
- 238000006460 hydrolysis reaction Methods 0.000 claims description 2
- 230000003301 hydrolyzing effect Effects 0.000 claims description 2
- 230000001737 promoting effect Effects 0.000 claims description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 239000000463 material Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000004753 textile Substances 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Images
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.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Description
- 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.
-
- 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.
- 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. Asteamer chamber 3 accommodatesindirect steamer pipes 4 for preventing the formation of dew on the ceiling,direct steamer pipes 5 for adjusting the temperature, and large andsmall feed rolls 6 for conveying the fabric when it is spread out. In thesteamer 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 thesteamer chamber 3 and the weight of which is reduced with alkali, is then introduced into avessel 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 thevessel 7, andholder rollers 10 are disposed on thefeed rolls 8 to squeeze the fabric by nipping. The fabric, coming from thevessel 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).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP100499/81 | 1981-06-30 | ||
| JP56100499A JPS584866A (en) | 1981-06-30 | 1981-06-30 | Continuous alkali weight reducing apparatus |
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)
| 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)
| 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 |
-
1981
- 1981-06-30 JP JP56100499A patent/JPS584866A/en active Pending
-
1982
- 1982-02-09 KR KR8200541A patent/KR850001863B1/en active
- 1982-02-11 EP EP82300691A patent/EP0069436B1/en not_active Expired
- 1982-02-11 DE DE8282300691T patent/DE3271229D1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| KR830009302A (en) | 1983-12-19 |
| JPS584866A (en) | 1983-01-12 |
| EP0069436A1 (en) | 1983-01-12 |
| DE3271229D1 (en) | 1986-06-26 |
| KR850001863B1 (en) | 1985-12-28 |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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