US3426554A - Apparatus for bleaching - Google Patents
Apparatus for bleaching Download PDFInfo
- Publication number
- US3426554A US3426554A US439194A US3426554DA US3426554A US 3426554 A US3426554 A US 3426554A US 439194 A US439194 A US 439194A US 3426554D A US3426554D A US 3426554DA US 3426554 A US3426554 A US 3426554A
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- Prior art keywords
- bleaching
- air
- fabric
- goods
- whirling
- Prior art date
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- Expired - Lifetime
Links
- 238000004061 bleaching Methods 0.000 title description 26
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 22
- 239000004155 Chlorine dioxide Substances 0.000 claims description 11
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 11
- 239000004744 fabric Substances 0.000 description 22
- 239000007789 gas Substances 0.000 description 15
- 239000000463 material Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000007788 liquid Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000000460 chlorine Substances 0.000 description 5
- 239000012670 alkaline solution Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- IRCMYGHHKLLGHV-UHFFFAOYSA-N 2-ethoxy-3,3-dimethyl-2,3-dihydro-1-benzofuran-5-yl methanesulfonate Chemical compound C1=C(OS(C)(=O)=O)C=C2C(C)(C)C(OCC)OC2=C1 IRCMYGHHKLLGHV-UHFFFAOYSA-N 0.000 description 1
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical class [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000000337 buffer salt Substances 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 235000015220 hamburgers Nutrition 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 239000005418 vegetable material 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
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/20—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen
- D06L4/22—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents
- D06L4/24—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents using chlorites or chlorine dioxide
-
- 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
- D06B3/12—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics in zig-zag manner over series of guiding means
Definitions
- the invention has for its object a continuous process for bleaching fabrics or yarns.
- fabric to be bleached is first treated with an alkaline solution, and then, soaked in a Weaker alkaline solution, is treated with gaseous chlorine. After removal of a part of the absorbed chlorine, the fabric is conducted into a warm alkaline bath, and thereafter-should it be necessary, after an intermediate rinsing and a second impregnation with an alkaline solutionthe material which has been wetted with the alkaline reagent is again treated with gaseous chlorine and undergoes an additional chlorination.
- the fabric is once more given a short treatment with an alkaline solution, whereby hypochlorite is formed, so that a higher degree of whiteness is attained.
- the fabric which is impregnated with the alkaline solution is drawn through a chamber with chlorine gas, in which it is exposed to the action of the chlorine gas (DPS 813.024).
- the fabric carriage must be drenched with a bleaching medium which has first received its bleaching effect through a catalyzer.
- the invention has for an object a rapid bleaching of textile materials in a continuous process with a gaseous bleaching medium.
- air-dry or dampened fabric web materials are conducted in extended condition through treatment chambers and beaten with circulating whirling gas from blowers, in particular, air currents to which flowing C10 gas is admixed. Because of this flowing admixture, the degree of concentration actually desired 3,426,554 Patented Feb. 11, 1969 ice is maintained during the treatment.
- the C10 air mixture because of the blowing from the blowers, is brought into intensive contact with the goods carriage, forcing itself into the heart of the same.
- the goods are not already wet when they arrive from the foregoing simple treatment, then it is recommended that the goods t-rain be moistened lbefore entrance into the treatment chamber, for example, with water to which has been added a standard acid moistening medium and a buffer salt, but, in order to achieve a possibly lasting concentration of C10 in the moisture content of the goods with a small C10 concentration in the air, too high a degree of wetness should not be selected.
- the rapid leveling off of the concentration in the moisture brought about by the blowing up in the ClO -air mixture out of the blowers provides for a uniform bleaching effect throughout the entire material carriage cross-section.
- the percentage of C10 in the circulating air current is thereby held considerably under the explosion danger safety limit, which, at room temperature, lies somewhat above 10% by volume. In the use of higher temperatures, it is necessary to operate with a correspondingly low percentage. On the other hand, it is advantageous to operate at higher temperatures, for example to about 50 C., as the rapidity of the bleaching effect of the C10 increases with the rise in temperature.
- the production of C10 in the generator or developer is adapted to suit the consumption by adjustment of the pressure control prevailing in the developer, which controls the feeding in of the outgoing chemicals.
- the material may be dried at a low moisture content at the same time that it passes through the bleaching layout.
- the moistening means must contain so much lye that, during the drying, the pH value in the moisture residue does not fall below an amount which could lead to damage to the material.
- the material dried out thus far may be stored in one of the airing chambers annexed to the bleaching layout.
- the material during its prograss through the bleaching layout, will be held to its moisture content while saturated or nearly saturated air is whirled about. If necessary, the moisture-content desired at any given moment may be attained through the blowing of steam into the bleaching chamber. After leaving the bleaching chamber, the material may be conducted through a washing apparatus with squeezers for neutralization and removal of chlorates and following that through an annexed drying chamber for drying.
- a layout which, besides a moistening apparatus, possesses a closed treatment chamber in which an air take-off creates a constant pressure control, and a part of the circulating, whirled-about air is sucked back through one of the conduits attached to the treatment chamber and leading to the developer and cause to flow over the surface of the liquid in the generator, and, after enrichment with C10 is again led back to the sucking end of this or that air whirler.
- the sucked-off air flows through a washing tower, in which the C10 is washed out before the exhaust air enters the open air.
- the wash water, with small C10 content can be used as moistening water for the incoming goods. In this case, the moistening apparatus will be drawn along into the pressure control area.
- FIG. 1 shows a perpendicular lengthwise section an FIG. 2 a horizontal section on the line 11-11 of FIG. 1 through a bleaching layout.
- the material 1 is led in over a moistening apparatus 2 with connected squeezing rollers 3 for the adjustment of the moisture and thereafter over guide rollers 4 into a treatment chamber 5 consisting of two sections set to gether.
- the treatment chamber may also be constructed of more than two sections.
- a larger stock of goods may be taken up at one time over the extended length of a plurality of superimposed treatment sections and added to the other goods in the last section and treated with a current of gas consisting of practically exhausted Clo -gas.
- the sections are divided from one another by partitions.
- Through a ventilator 9 at the end of the treatment chamber exhaust gases practically completely free of C10 are led off.
- the ventilator 9 is so constructed that a constant pressure control prevails in all sections, whereby a going out of ClO enriched gas in the work room is prevented.
- blowers 10, 11 project alternately from below and above, and are attached to lead-in canals 12, 13.
- the canals 12, 13 are fed with whirling air currents 14, 15. These again suck in the gas mixture which, for the most part, has been sucked off from the blowers 10, 11, after the unrolling of the goods 5, for a renewed unrolling.
- the Cl0 enriched gas mixture is constantly led into the whirling air currents 14, 15, through conduits 1-6, 17, 18.
- a branch current of the gas current whirled around in the last section of the treatment chamber is sucked out of the return canal 28 (FIG.
- the moisture content of the fabric 1 when treated with the whirling currents or jets should be in excess of 20% and the percentage of chlorine dioxide in the whirling air currents should be between 0.5 to 7% by volume and the goods may be moistened with dilute lye or caustic alkali.
- the partitions on both sides of the fabric in the chamber between the guide rollers will direct the blasts onto both sides of the fabric.
- An apparatus for bleaching an extended textile web with whirling currents and jets of air containing chlorine dioxide comprising an elongated closed treatment chamber having an inlet side and an outlet side and top and bottom walls, the inlet side having an inlet slot for the extended web at one end and the outlet side having an outlet slot for the web at the other end, a carrier arrangement for conducting the extended web in sinuous zig-zag fashion extending from adjacent the top wall to adjacent the bottom wall from the inlet side to the outlet side, generators positioned along the walls of the elongated vessel for generating whirling currents and jets of air containing chlorine dioxide, directing means from directing said currents forcibly upon both sides of the extended web, an exhaust system for removing the air containing residual chlorine dioxide from the chamber, a washer for washing said removed air with wash water to remove chlorine dioxide, a closed vessel through which the web passes before passing through the inlet slot serving as a moistener containing means to moisten the fabric entering the treatment chamber, a return line from the washer to conduct wash
- conduits between the directing means positioned alongside the sides of the treatment chamber.
- said directing means having partitions extending along both sides of the fabric for directing upon both sides of the fabric whirling blasts of air containing 0.5 to 7% by volume of chlorine dioxide gas.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Treatment Of Fiber Materials (AREA)
Description
xx 3,42m554 I APPARATUS FOR BLEACHING Filed March 12, 1965 Sheet INVENTOR ,4 Lys S/MONS ATT RNEY Feb. 11, 1969 1 o 3,426,554
APPARATUS FOR BLEACHING Filed March 12. 1965 Sheet 3 of 2 INVENTOR ALoys SIM IS ATTORNEY United States Patent K 52,366 US. (:1. 68-9 Int. Cl. D06c 1/10; D061 3/08 7 Claims The applicant claims the benefit of German application Ser. No. K 52,366, filed Mar. 13, 1964.
It is known to treat fabric or vegetable materials with gaseous C10 or with an aqueous solution of C10 According to the known process, the fabric is washed in the usual way and is then disposed in a water-filled receptacle. Thereupon, C10 is conducted into the water in the receptacle to the amount of 60 to 80 g. to 1 kg. of goods. The water thus enriched with C10 is then heated moderately, and the fabric is subjected for several hours, under frequent agitation, to the action of the aqueous solution (DPS 413.228).
Working in a similar manner with gaseous C10 which is conducted into one of the fabric-containing gastight chambers, then one would likewise need a lengthy action of the gaseous C10 for bleaching, as the C10 concentration in the gaseous mixture constantly takes off.
In contrast to such a non-continuous bleaching process with gaseous ClO or an aqueous solution of C10 the invention has for its object a continuous process for bleaching fabrics or yarns.
The bleaching of fabric in continuous process is known of itself. According to that process, fabric to be bleached is first treated with an alkaline solution, and then, soaked in a Weaker alkaline solution, is treated with gaseous chlorine. After removal of a part of the absorbed chlorine, the fabric is conducted into a warm alkaline bath, and thereafter-should it be necessary, after an intermediate rinsing and a second impregnation with an alkaline solutionthe material which has been wetted with the alkaline reagent is again treated with gaseous chlorine and undergoes an additional chlorination.
Finally, the fabric is once more given a short treatment with an alkaline solution, whereby hypochlorite is formed, so that a higher degree of whiteness is attained. In this process the fabric which is impregnated with the alkaline solution is drawn through a chamber with chlorine gas, in which it is exposed to the action of the chlorine gas (DPS 813.024).
Other continuous bleaching processes set forth the impregnation of the fabric with a suitable chemical solution and exposing it in a warm and moist atmosphere to the action of a suitable liquid, such, for example, as a reaction medium, a catalyzer, a heat carrier, or the like, while that is slung against the surface of the products to be handled in the form of concentrated and recovered single jets, whose penetrating strength is so great that the desired effect immediately appears in the depth as well as on the surface of the goods (DPS 808.825).
In this process, the fabric carriage must be drenched with a bleaching medium which has first received its bleaching effect through a catalyzer.
In contrast to such a bleaching process with fluid bleaching mediums, the invention has for an object a rapid bleaching of textile materials in a continuous process with a gaseous bleaching medium. According to the process of the invention, air-dry or dampened fabric web materials are conducted in extended condition through treatment chambers and beaten with circulating whirling gas from blowers, in particular, air currents to which flowing C10 gas is admixed. Because of this flowing admixture, the degree of concentration actually desired 3,426,554 Patented Feb. 11, 1969 ice is maintained during the treatment. Moreover, the C10 air mixture, because of the blowing from the blowers, is brought into intensive contact with the goods carriage, forcing itself into the heart of the same.
If the goods are not already wet when they arrive from the foregoing simple treatment, then it is recommended that the goods t-rain be moistened lbefore entrance into the treatment chamber, for example, with water to which has been added a standard acid moistening medium and a buffer salt, but, in order to achieve a possibly lasting concentration of C10 in the moisture content of the goods with a small C10 concentration in the air, too high a degree of wetness should not be selected. The rapid leveling off of the concentration in the moisture brought about by the blowing up in the ClO -air mixture out of the blowers provides for a uniform bleaching effect throughout the entire material carriage cross-section.
The percentage of C10 in the circulating air current is thereby held considerably under the explosion danger safety limit, which, at room temperature, lies somewhat above 10% by volume. In the use of higher temperatures, it is necessary to operate with a correspondingly low percentage. On the other hand, it is advantageous to operate at higher temperatures, for example to about 50 C., as the rapidity of the bleaching effect of the C10 increases with the rise in temperature.
To keep up the C10 content, percentagewise, in the circulating whirling air current, a part of the air current is conducted over generator for Clo -gas and, after enrichment with C10 is again led to the treatment chamber.
The production of C10 in the generator or developer is adapted to suit the consumption by adjustment of the pressure control prevailing in the developer, which controls the feeding in of the outgoing chemicals.
The material may be dried at a low moisture content at the same time that it passes through the bleaching layout. In this case, the moistening means must contain so much lye that, during the drying, the pH value in the moisture residue does not fall below an amount which could lead to damage to the material. The material dried out thus far may be stored in one of the airing chambers annexed to the bleaching layout.
However, for the purpose in view, the material, during its prograss through the bleaching layout, will be held to its moisture content while saturated or nearly saturated air is whirled about. If necessary, the moisture-content desired at any given moment may be attained through the blowing of steam into the bleaching chamber. After leaving the bleaching chamber, the material may be conducted through a washing apparatus with squeezers for neutralization and removal of chlorates and following that through an annexed drying chamber for drying.
For the purpose of carrying out the bleaching process for material with gaseous C10 according to the invention, a layout is employed which, besides a moistening apparatus, possesses a closed treatment chamber in which an air take-off creates a constant pressure control, and a part of the circulating, whirled-about air is sucked back through one of the conduits attached to the treatment chamber and leading to the developer and cause to flow over the surface of the liquid in the generator, and, after enrichment with C10 is again led back to the sucking end of this or that air whirler. To maintain a small pressure control from the ventilator, the sucked-off air flows through a washing tower, in which the C10 is washed out before the exhaust air enters the open air. The wash water, with small C10 content, can be used as moistening water for the incoming goods. In this case, the moistening apparatus will be drawn along into the pressure control area.
In the drawing, a layout for carrying out the bleaching process for textile material according to the invention is schematically set forth.
FIG. 1 shows a perpendicular lengthwise section an FIG. 2 a horizontal section on the line 11-11 of FIG. 1 through a bleaching layout.
The material 1 is led in over a moistening apparatus 2 with connected squeezing rollers 3 for the adjustment of the moisture and thereafter over guide rollers 4 into a treatment chamber 5 consisting of two sections set to gether.
In the treatment chamber 5, the carriage is carried forward alternately, in zigzag fashion, over upper driven rollers 6 and lower free-running conducting rollers 7. The treatment chamber may also be constructed of more than two sections. A larger stock of goods may be taken up at one time over the extended length of a plurality of superimposed treatment sections and added to the other goods in the last section and treated with a current of gas consisting of practically exhausted Clo -gas. The sections are divided from one another by partitions. Through a ventilator 9 at the end of the treatment chamber exhaust gases practically completely free of C10 are led off. The ventilator 9 is so constructed that a constant pressure control prevails in all sections, whereby a going out of ClO enriched gas in the work room is prevented. For the continual liberation 01": C10 these exhaust gases may flow through a wash tower 26, the water of which, suitably enriched with the C10 residue of the exhaust gases, is led back to the moistening apparatus. In such case, the moistening apparatus will be included with a vent in the developer 21 for the feeding of the pressure control pro= duced by the outgoing goods.
Between the individual goods carriage loops, blowers 10, 11 project alternately from below and above, and are attached to lead-in canals 12, 13. The canals 12, 13 are fed with whirling air currents 14, 15. These again suck in the gas mixture which, for the most part, has been sucked off from the blowers 10, 11, after the unrolling of the goods 5, for a renewed unrolling. To maintain the concentration, the Cl0 enriched gas mixture is constantly led into the whirling air currents 14, 15, through conduits 1-6, 17, 18. For that purpose, a branch current of the gas current whirled around in the last section of the treatment chamber is sucked out of the return canal 28 (FIG. 2) into the whirling air 22, 23, by a conductor 19 from a vent 20 over the surface of the developer liquid in a C10 developer 21, and thereby is enriched with the ClO produced in the developer 21. Instead of leading the entire branch current over the surface of the developer liquid, a smaller portion may be sucked through the developer liquid drop by drop, in order to carry along the self-build ing C10 in the reaction solution and carry it off.
Through the ingress and egress slits 24, 25, of the goods carriage 1, the part of the exhaust led oif into the open air through the ventilator 9 is replaced with fresh air.
Through the dividing up of the layout into a plurality of sections, it is possible to treat the goods carriage 1 in the superimposed sections with a gas mixture of constantly decreasing Cl0 concentration and to use up prac= tically constantly the C10 content, so that losses of C10 in the exhaust are very small.
It may be recommended to provide a heat register in the return-conductor 28 of the gas mixture, in order to strengthen the bleaching etfect of the C10 In view of the danger of explosion with increase in temperature, it is advantageous to work with higher tempera tures in the superimposed sections, so that the danger of explosion will decrease when the C10 content lowers.
In the preferred procedure the moisture content of the fabric 1, when treated with the whirling currents or jets should be in excess of 20% and the percentage of chlorine dioxide in the whirling air currents should be between 0.5 to 7% by volume and the goods may be moistened with dilute lye or caustic alkali. The partitions on both sides of the fabric in the chamber between the guide rollers will direct the blasts onto both sides of the fabric.
I claim:
1. An apparatus for bleaching an extended textile web with whirling currents and jets of air containing chlorine dioxide comprising an elongated closed treatment chamber having an inlet side and an outlet side and top and bottom walls, the inlet side having an inlet slot for the extended web at one end and the outlet side having an outlet slot for the web at the other end, a carrier arrangement for conducting the extended web in sinuous zig-zag fashion extending from adjacent the top wall to adjacent the bottom wall from the inlet side to the outlet side, generators positioned along the walls of the elongated vessel for generating whirling currents and jets of air containing chlorine dioxide, directing means from directing said currents forcibly upon both sides of the extended web, an exhaust system for removing the air containing residual chlorine dioxide from the chamber, a washer for washing said removed air with wash water to remove chlorine dioxide, a closed vessel through which the web passes before passing through the inlet slot serving as a moistener containing means to moisten the fabric entering the treatment chamber, a return line from the washer to conduct wash water containing removed chlorine dioxide to the moistener to provide in said moistener wash water to moisten the fabric passing therethrough, a producer having a liquid body to generate chlorine dioxide, a gaseous conduit to conduct air containing chlorine dioxide from within the treatment chamber to the producer to enrich the air with additional chlorine dioxide and additional gaseous conduits to conduct the enriched air from the producer to the generators.
2. The apparatus of claim 1, said return line being connected to opposite sides of the treatment chamber adjacent the outlet side and extending along each side of the chamber toward the inlet side.
3. The apparatus of claim 1, conduits between the directing means positioned alongside the sides of the treatment chamber.
4. The apparatus of claim 1, said moistener having a series of rollers, first to moisten the fabric and then to squeeze out the excess moisture from the fabric.
5. The apparatus of claim 1, in which air current generators are positioned at the opposite corners of the chamber for creating said whirling currents of air.
6. The apparatus of claim 1, in which two chambers are placed in series and succession, each provided with blowers at opposite corners thereof serving as said generators for creating whirling currents of air.
7. The apparatus of claim 1, said directing means having partitions extending along both sides of the fabric for directing upon both sides of the fabric whirling blasts of air containing 0.5 to 7% by volume of chlorine dioxide gas.
References Cited UNITED STATES PATENTS 2,199,233 4/ 1940 Williams 8149.1 X 1,580,136 4/ 1926 Hamburger et al 8108 3,291,559 12/1966 Robson et al 8108 FOREIGN PATENTS 337,305 10/ 1930 Great Britain.
MAYER WEINBLATT, Primary Examiner.
US. Cl. X.R.
Claims (1)
- 7. THE APPARATUS OF CLAIM 1, SAID DIRECTING MEANS HAVING PARTITIONS EXTENDING ALONG BOTH SIDES OF THE FABRIC FOR DIRECTING UPON BOTH SIDES OF THE FABRIC WHIRLING BLASTS OF AIR CONTAINING 0.5 TO 7% BY VOLUME OF CHLORINE DIOXIDE GAS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK0052366 | 1964-03-13 |
Publications (1)
Publication Number | Publication Date |
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US3426554A true US3426554A (en) | 1969-02-11 |
Family
ID=7226326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US439194A Expired - Lifetime US3426554A (en) | 1964-03-13 | 1965-03-12 | Apparatus for bleaching |
Country Status (3)
Country | Link |
---|---|
US (1) | US3426554A (en) |
DE (1) | DE1460272A1 (en) |
NL (1) | NL6503012A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3808846A (en) * | 1969-06-23 | 1974-05-07 | Vepa Ag | Apparatus for the continuous treatment of natural and synthetic fibers with a solvent |
US3918276A (en) * | 1973-05-04 | 1975-11-11 | Kurt Bruckner | Apparatus for the wet treatment and subsequent drying of a textile fabric web |
US3983723A (en) * | 1972-12-20 | 1976-10-05 | Thies Kg | Apparatus for wet-treating materials |
EP0047911A1 (en) * | 1980-09-11 | 1982-03-24 | BASF Aktiengesellschaft | Method and apparatus for continuously washing textile materials |
US4404699A (en) * | 1980-09-16 | 1983-09-20 | Sando Iron Works Co., Ltd. | Method of continuously wet heat treating a cloth at an elevated temperature |
EP0433228A1 (en) * | 1989-12-15 | 1991-06-19 | Benninger AG | Method and apparatus for continuously washing a textile sheet-like material |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1580136A (en) * | 1923-11-16 | 1926-04-13 | Hamburger Robert | Process for bleaching organic materials |
GB337305A (en) * | 1929-02-10 | 1930-10-30 | Oscar Hoffmann | Process and apparatus for treating textile threads and fabrics |
US2199233A (en) * | 1939-11-24 | 1940-04-30 | Gen Dyestuff Corp | Method of dyeing fabric |
US3291559A (en) * | 1961-10-13 | 1966-12-13 | Olin Mathieson | Process of bleaching cellulose with chlorine dioxide wherein chlorine dioxide is continuously replenished |
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1964
- 1964-03-13 DE DE19641460272 patent/DE1460272A1/en active Pending
-
1965
- 1965-03-09 NL NL6503012A patent/NL6503012A/xx unknown
- 1965-03-12 US US439194A patent/US3426554A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1580136A (en) * | 1923-11-16 | 1926-04-13 | Hamburger Robert | Process for bleaching organic materials |
GB337305A (en) * | 1929-02-10 | 1930-10-30 | Oscar Hoffmann | Process and apparatus for treating textile threads and fabrics |
US2199233A (en) * | 1939-11-24 | 1940-04-30 | Gen Dyestuff Corp | Method of dyeing fabric |
US3291559A (en) * | 1961-10-13 | 1966-12-13 | Olin Mathieson | Process of bleaching cellulose with chlorine dioxide wherein chlorine dioxide is continuously replenished |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3808846A (en) * | 1969-06-23 | 1974-05-07 | Vepa Ag | Apparatus for the continuous treatment of natural and synthetic fibers with a solvent |
US3983723A (en) * | 1972-12-20 | 1976-10-05 | Thies Kg | Apparatus for wet-treating materials |
US3918276A (en) * | 1973-05-04 | 1975-11-11 | Kurt Bruckner | Apparatus for the wet treatment and subsequent drying of a textile fabric web |
EP0047911A1 (en) * | 1980-09-11 | 1982-03-24 | BASF Aktiengesellschaft | Method and apparatus for continuously washing textile materials |
US4404699A (en) * | 1980-09-16 | 1983-09-20 | Sando Iron Works Co., Ltd. | Method of continuously wet heat treating a cloth at an elevated temperature |
EP0433228A1 (en) * | 1989-12-15 | 1991-06-19 | Benninger AG | Method and apparatus for continuously washing a textile sheet-like material |
Also Published As
Publication number | Publication date |
---|---|
NL6503012A (en) | 1965-09-14 |
DE1460272A1 (en) | 1968-12-19 |
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