DE1085491B - Process for bleaching textiles using aqueous solutions of alkali or alkaline earth chlorites - Google Patents
Process for bleaching textiles using aqueous solutions of alkali or alkaline earth chloritesInfo
- Publication number
- DE1085491B DE1085491B DED29791A DED0029791A DE1085491B DE 1085491 B DE1085491 B DE 1085491B DE D29791 A DED29791 A DE D29791A DE D0029791 A DED0029791 A DE D0029791A DE 1085491 B DE1085491 B DE 1085491B
- Authority
- DE
- Germany
- Prior art keywords
- bleaching
- alkali
- alkaline earth
- aqueous solutions
- solutions
- 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.)
- Pending
Links
- 238000004061 bleaching Methods 0.000 title claims description 17
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical class OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 title claims description 10
- 239000007864 aqueous solution Substances 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 5
- 239000003513 alkali Substances 0.000 title claims description 4
- 239000004753 textile Substances 0.000 title claims description 3
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims description 14
- 239000000243 solution Substances 0.000 claims description 10
- 229910001919 chlorite Inorganic materials 0.000 claims description 8
- 229910052619 chlorite group Inorganic materials 0.000 claims description 8
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims description 7
- 239000004312 hexamethylene tetramine Substances 0.000 claims description 7
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 4
- 239000012190 activator Substances 0.000 claims description 3
- -1 alkaline earth metal chlorites Chemical class 0.000 claims description 2
- 239000004744 fabric Substances 0.000 description 8
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical group O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- 239000004155 Chlorine dioxide Substances 0.000 description 3
- 235000019398 chlorine dioxide Nutrition 0.000 description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000080 wetting agent Substances 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 241000219422 Urtica Species 0.000 description 2
- 235000009108 Urtica dioica Nutrition 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Classifications
-
- 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
- D06L4/26—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 combined with specific additives
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Detergent Compositions (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Description
DEUTSCHESGERMAN
Es ist bekannt, wäßrige Lösungen von Alkali- oder Erdalkalichloriten zum Bleichen verschiedener Stoffe, insbesondere von Baumwolle oder Baumwollwaren, zu verwenden. Hierbei werden diese Lösungen in der Regel durch Zusatz von Säuren aktiviert. Dieser Zusatz hat aber den Nachteil, daß schon in der Kälte Chlordioxyd frei wird. Das sich bildende Chlordioxyd wirkt einerseits physiologisch sehr unangenehm, andererseits verursacht es Korrosionen.It is known to use aqueous solutions of alkali or alkaline earth metal chlorites for bleaching various substances, especially of cotton or cotton goods. This is where these solutions are usually activated by adding acids. However, this addition has the disadvantage that even in the cold it is chlorine dioxide becomes free. The chlorine dioxide that forms has a physiologically very unpleasant effect on the one hand, and causes on the other there corrosion.
Es ist ferner bekannt, verschiedene Stoffe als Aktivatoren für Chloritlösungen zu verwenden.It is also known to use various substances as activators to be used for chlorite solutions.
Es ist schließlich bekannt, beim Bleichen von Cellulosematerial mit chlorhaltigen wäßrigen Lösungen stickstoffhaltige Verbindungen aus der Gruppe Ammoniak, monosubstituiertes und disubstituiertes Ammoniak sowie deren Salze zuzusetzen (deutsche Patentschrift 870 082).Finally, it is known to use nitrogenous solutions when bleaching cellulose material with chlorine-containing aqueous solutions Compounds from the group of ammonia, monosubstituted and disubstituted ammonia and add their salts (German patent 870 082).
Es wurde nun gefunden, daß Chloritlösungen in ausgezeichneter Weise aktiviert werden können, wenn man ihnen Hexamethylentetramin zusetzt. Chloritlösungen, die mit Hexamethylentetramin versetzt sind, entwickeln in der Kälte kein Chlordioxyd. Erst bei höheren Temperaturen, insbesondere bei Temperaturen von etwa 50°C und darüber, findet in Gegenwart der zu bleichenden Stoffe, insbesondere von zellulosehaltigen Stoffen, ein Bleichen statt.It has now been found that chlorite solutions can be activated in an excellent manner if one adds hexamethylenetetramine to them. Chlorite solutions to which hexamethylenetetramine has been added, do not develop chlorine dioxide in the cold. Only at higher temperatures, especially at temperatures of about 50 ° C and above, takes place in the presence of the substances to be bleached, especially those containing cellulose Fabrics, a bleaching instead.
Es hat sich ferner als vorteilhaft erwiesen, je Mol Chlorit 0,01 bis 0,5 Mol des Aktivators zuzusetzen.It has also proven advantageous to add 0.01 to 0.5 mol of the activator per mole of chlorite.
Entschlichtetes Nesselgewebe wird mit einer wäßrigen Lösung, die je Liter 12 g NaClO2, 1,2 g Hexamethylentetramin und 1,0 g eines Netzmittels enthält, imprägniert und dann 3 Stunden lang bei 78° C in einem geschlossenen Gefäß gehalten. Der pH-Wert der Bleichlösung beträgt beim Ansetzen 9,2, nach dem Bleichen 4,6. Der Weißgrad des Gewebes ist von 60,3 auf 85,6% gestiegen. In 100 Gewichtsteilen des Gewebes ist nach dem Bleichen nur noch 0,1 Teil unverbrauchtes Chlorit enthalten.Desized nettle fabric is impregnated with an aqueous solution containing 12 g of NaClO 2 , 1.2 g of hexamethylenetetramine and 1.0 g of a wetting agent per liter and then kept in a closed vessel at 78 ° C. for 3 hours. The pH value of the bleaching solution is 9.2 during preparation, after bleaching 4,6. The whiteness of the fabric has increased from 60.3 to 85.6%. After bleaching, 100 parts by weight of the fabric only contain 0.1 part of unused chlorite.
Verfahren zum Bleichen von TextilgutProcess for bleaching textile goods
mittels wäßriger Lösungen
von Alkali- oder Erdalkalichloritenby means of aqueous solutions
of alkali or alkaline earth chlorites
Anmelder:Applicant:
Deutsche Gold- und Silber-ScheideanstaltGerman gold and silver refinery
vormals Roessler,
Frankfurt/M., Weißfrauenstr. 9formerly Roessler,
Frankfurt / M., Weißfrauenstr. 9
Alfred Lehn, Frankfurt/M.,
ist als Erfinder genannt wordenAlfred Lehn, Frankfurt / M.,
has been named as the inventor
Entschlichtetes schalenhaltiges Grobnesselgewebe wird mit einer wäßrigen Lösung, die je Liter 16 g NaClO2, 1 g Hexamethylentetramin und 1 g eines Netzmittels enthält, imprägniert und dann 2 Stunden lang bei 93° C in einem geschlossenen Gefäß gehalten. Der pH-Wert der Bleichlösung beträgt beim Ansetzen 9,2, nach dem Bleichen 4,6. Der Weißgrad des Gewebes ist von 55,5 auf 84,6 % gestiegen. In 100 Gewichtsteilen des Gewebes sind nach dem Bleichen nur noch 0,2 Teile unverbrauchtes Chlorit enthalten.Desized peeled nettle tissue is impregnated with an aqueous solution containing 16 g of NaClO 2 , 1 g of hexamethylenetetramine and 1 g of a wetting agent per liter and then kept in a closed vessel at 93 ° C. for 2 hours. The pH value of the bleaching solution is 9.2 during preparation, after bleaching 4,6. The whiteness of the fabric has increased from 55.5 to 84.6%. After bleaching, 100 parts by weight of the fabric only contain 0.2 parts of unused chlorite.
Cordgewebe wird mit einer wäßrigen Lösung, die je Liter 14,4 g NaClO2, 1,4 g Hexamethylentetramin und 1,0 g eines Netzmittels enthält, imprägniert und dann 3 Stunden lang bei 78° C in einem geschlossenen Gefäß gehalten. Der pH-Wert der Bleichlösung beträgt beim Ansetzen 9,2, nach dem Bleichen 4,3. Der Weißgrad der Rückseite stieg von 48,8 auf 78,1 %. In 100 Gewichtsteilen des Gewebes sind nach dem Bleichen nur noch 0,12 Teile unverbrauchtes Chlorit enthalten.Cord fabric is impregnated with an aqueous solution containing 14.4 g of NaClO 2 , 1.4 g of hexamethylenetetramine and 1.0 g of a wetting agent per liter and then kept in a closed vessel at 78 ° C. for 3 hours. The pH value of the bleaching solution is 9.2 during preparation, after bleaching 4.3. The whiteness of the back increased from 48.8 to 78.1%. After bleaching, 100 parts by weight of the fabric only contain 0.12 parts of unused chlorite.
Claims (3)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL109027D NL109027C (en) | 1959-01-17 | ||
| BE586581D BE586581A (en) | 1959-01-17 | ||
| DED29791A DE1085491B (en) | 1959-01-17 | 1959-01-17 | Process for bleaching textiles using aqueous solutions of alkali or alkaline earth chlorites |
| FR812497A FR1242167A (en) | 1959-01-17 | 1959-12-09 | Bleaching process using aqueous solutions of alkaline or alkaline earth chlorites |
| CH8241059A CH370045A (en) | 1959-01-17 | 1959-12-28 | Process for bleaching textiles with aqueous solutions of alkali or alkaline earth chlorites |
| GB1436/60A GB912062A (en) | 1959-01-17 | 1960-01-14 | Bleaching process using aqueous solutions of alkali or alkaline earth metal chlorites |
| US2340A US3050359A (en) | 1959-01-17 | 1960-01-14 | Hexamethylene tetramine activated chlorite bleach |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DED29791A DE1085491B (en) | 1959-01-17 | 1959-01-17 | Process for bleaching textiles using aqueous solutions of alkali or alkaline earth chlorites |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1085491B true DE1085491B (en) | 1960-07-21 |
Family
ID=7040229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DED29791A Pending DE1085491B (en) | 1959-01-17 | 1959-01-17 | Process for bleaching textiles using aqueous solutions of alkali or alkaline earth chlorites |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3050359A (en) |
| BE (1) | BE586581A (en) |
| CH (1) | CH370045A (en) |
| DE (1) | DE1085491B (en) |
| FR (1) | FR1242167A (en) |
| GB (1) | GB912062A (en) |
| NL (1) | NL109027C (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1719168A (en) * | 1927-01-11 | 1929-07-02 | Vanderbilt Co R T | Pickling of metals, etc. |
| US2153416A (en) * | 1936-05-22 | 1939-04-04 | Hatters Fur Exchange Inc | Treatment of animal and vegetable fibers |
| US2194956A (en) * | 1939-01-10 | 1940-03-26 | Mathieson Alkali Works Inc | Bleaching pulp |
| BE465974A (en) * | 1943-01-11 | 1900-01-01 | ||
| US2810717A (en) * | 1955-02-07 | 1957-10-22 | Hercules Powder Co Ltd | Chlorite bleaching in the presence of a nitrogen compound employed as a corrosion inhibitor |
-
0
- BE BE586581D patent/BE586581A/xx unknown
- NL NL109027D patent/NL109027C/xx active
-
1959
- 1959-01-17 DE DED29791A patent/DE1085491B/en active Pending
- 1959-12-09 FR FR812497A patent/FR1242167A/en not_active Expired
- 1959-12-28 CH CH8241059A patent/CH370045A/en unknown
-
1960
- 1960-01-14 GB GB1436/60A patent/GB912062A/en not_active Expired
- 1960-01-14 US US2340A patent/US3050359A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3050359A (en) | 1962-08-21 |
| GB912062A (en) | 1962-12-05 |
| CH8241059A4 (en) | 1963-03-15 |
| NL109027C (en) | 1900-01-01 |
| FR1242167A (en) | 1960-09-23 |
| BE586581A (en) | 1900-01-01 |
| CH370045A (en) | 1963-08-15 |
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