DE1083221B - Process for bleaching natural or synthetic fibers and textiles as well as cellulose and wood pulp with aqueous treatment baths containing peroxide - Google Patents
Process for bleaching natural or synthetic fibers and textiles as well as cellulose and wood pulp with aqueous treatment baths containing peroxideInfo
- Publication number
- DE1083221B DE1083221B DED28208A DED0028208A DE1083221B DE 1083221 B DE1083221 B DE 1083221B DE D28208 A DED28208 A DE D28208A DE D0028208 A DED0028208 A DE D0028208A DE 1083221 B DE1083221 B DE 1083221B
- Authority
- DE
- Germany
- Prior art keywords
- textiles
- synthetic fibers
- treatment baths
- well
- cellulose
- 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 8
- 238000000034 method Methods 0.000 title claims description 7
- 150000002978 peroxides Chemical class 0.000 title claims description 5
- 229920002994 synthetic fiber Polymers 0.000 title claims description 5
- 239000012209 synthetic fiber Substances 0.000 title claims description 3
- 239000004758 synthetic textile Substances 0.000 title claims 2
- 229920001131 Pulp (paper) Polymers 0.000 title description 2
- 229920002678 cellulose Polymers 0.000 title 1
- 239000001913 cellulose Substances 0.000 title 1
- 150000003839 salts Chemical class 0.000 claims description 4
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical class O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims 1
- 150000001342 alkaline earth metals Chemical class 0.000 claims 1
- 239000002023 wood Substances 0.000 claims 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 8
- 239000000835 fiber Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 6
- 239000003381 stabilizer Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- 229910001385 heavy metal Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- -1 alkali metal salts Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 3
- 235000019341 magnesium sulphate Nutrition 0.000 description 3
- 235000019353 potassium silicate Nutrition 0.000 description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 3
- JSECNWXDEZOMPD-UHFFFAOYSA-N tetrakis(2-methoxyethyl) silicate Chemical compound COCCO[Si](OCCOC)(OCCOC)OCCOC JSECNWXDEZOMPD-UHFFFAOYSA-N 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 150000003377 silicon compounds Chemical class 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229910004009 SiCy Inorganic materials 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- OVZRXWSZIKLJRC-UHFFFAOYSA-N bis(2-methoxyethoxy)-dimethylsilane Chemical compound COCCO[Si](C)(C)OCCOC OVZRXWSZIKLJRC-UHFFFAOYSA-N 0.000 description 1
- 239000000337 buffer salt Substances 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 235000012241 calcium silicate Nutrition 0.000 description 1
- MMCOUVMKNAHQOY-UHFFFAOYSA-N carbonoperoxoic acid Chemical class OOC(O)=O MMCOUVMKNAHQOY-UHFFFAOYSA-N 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- IJKVHSBPTUYDLN-UHFFFAOYSA-N dihydroxy(oxo)silane Chemical group O[Si](O)=O IJKVHSBPTUYDLN-UHFFFAOYSA-N 0.000 description 1
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical class CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 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
- 238000010438 heat treatment Methods 0.000 description 1
- PEYVWSJAZONVQK-UHFFFAOYSA-N hydroperoxy(oxo)borane Chemical class OOB=O PEYVWSJAZONVQK-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 235000012243 magnesium silicates Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- OLTVTFUBQOLTND-UHFFFAOYSA-N tris(2-methoxyethoxy)-methylsilane Chemical compound COCCO[Si](C)(OCCOC)OCCOC OLTVTFUBQOLTND-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
-
- 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
- D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
- D06L4/12—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen combined with specific additives
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Detergent Compositions (AREA)
Description
DEUTSCHESGERMAN
Es ist schon seit langem bekannt, Fasern und Textilmaterialien mit wäßrigen Lösungen oder Dispersionen von aktiven Sauerstoff abspaltenden peroxydischen Verbindungen zu behandeln. Derartige Verbindungen sind beispielsweise Wasserstoffperoxyd, Natriumperoxyd und die Salze der Perborsäure, Perkohlensäure, Perphosphorsäure und dergleichen. Zur Stabilisierung dieser Lösungen oder Dispersionen verwendet man häufig ein Alkalisilikat in Verbindung mit löslichen Magnesium- oder Calciumsalzen. Der Zusatz dieser Stabilisatoren verhindert die zu schnelle Zersetzung der Perverbindungen. Die entstehenden Magnesium- oder Calciumsilikate haben sich für diesen Zweck gut bewährt. Ihre Anwendung bringt aber dennoch Nachteile mit sich, da sie besonders beim Erkalten des Bades Trübungen hervorrufen und kieselsäurehaltige Ablagerungen auf der Faser verursachen.It has long been known to mix fibers and textile materials with aqueous solutions or dispersions to treat active oxygen-releasing peroxidic compounds. Such connections are for example hydrogen peroxide, sodium peroxide and the salts of perboric acid, percarbonic acid, perphosphoric acid and the same. An alkali silicate is often used to stabilize these solutions or dispersions in connection with soluble magnesium or calcium salts. The addition of these stabilizers prevents that too rapid decomposition of the per compounds. The resulting magnesium or calcium silicates have become Well proven for this purpose. However, their use still has disadvantages, since it is particularly useful for If the bath cools down, it will cause clouding and silica-based deposits on the fibers.
Es ist ferner bekannt, organische Stabilisatoren zu verwenden, die Calcium oder Magnesium, gebunden an organische Salzbildner oder Komplexe, enthalten. Auch hierdurch können die Flotten ausreichend stabilisiert werden. Die organischen Stabilisatoren haben aber den Nachteil, daß ihre Wirkung durch geringe Mengen auf den Fasern enthaltender Schwermetalle oder Schwermetallverbindungen verhindert wird. An diesen Stellen wird der Zerfall des Peroxyds katalytisch beschleunigt, und es tritt an ihnen leicht eine lokale Überbleiche und eine damit verbundene Schädigung der Fasern auf. Es kann sogar der Fall eintreten, daß die organischen Stabilisatoren, die auch dispergierend wirken, die Schwermetallverunreinigungen, die häufig punktförmig an einzelnen Stellen zu finden sind, breit auf der Faser verteilen. An Stelle von punktförmigen Zerstörungen können dann größere Teile durch die katalytisch gesteigerte Oxydation geschädigt werden.It is also known to use organic stabilizers containing calcium or magnesium bound to organic salt formers or complexes. This also allows the liquors to be adequately stabilized will. The organic stabilizers have the disadvantage that their effect is limited by small amounts the fibers containing heavy metals or heavy metal compounds is prevented. In these places the disintegration of the peroxide is accelerated catalytically, and local bleaching and bleaching easily occurs on them associated damage to the fibers. It can even happen that the organic Stabilizers, which also have a dispersing effect, the heavy metal impurities, which are often punctiform can be found in individual places, distribute them widely on the fiber. Instead of punctiform destruction larger parts can then be damaged by the catalytically increased oxidation.
Man hat auch schon versucht, die Schwermetallverunreinigungen mit Hilfe verschiedener lösender Mittel herauszulösen. Eine vollständige Entfernung der Schwermetalle ist aber bisher nicht gelungen.Attempts have also been made to remove heavy metal contamination with the help of various solvents to detach. A complete removal of the heavy metals has so far not been successful.
Es wurde nun gefunden, daß es möglich ist, diese Nachteile zu vermeiden, wenn man den peroxydischen Flotten als Stabilisator Kieselsäureester oder Alkylalkoxysilane, die wenigstens zum Teil in Wasser löslich sind, zusetzt. Hierbei wird die Siliciumverbindung langsam zu Kieselsäure zersetzt, so daß immer genügend Stabilisator vorhanden ist, um die zu schnelle Zersetzung der peroxydischen Verbindung zu verhindern. Durch die langsame Spaltung der Süiciumverbindung wird aber eine Trübung der Flotte vermieden, ebenso wie eine Ablagerung von Silikat auf den Fasern oder Geweben.It has now been found that it is possible to avoid these disadvantages by using the peroxidic Liquors as stabilizers silicic acid esters or alkylalkoxysilanes, which are at least partially soluble in water, clogs. The silicon compound is slowly decomposed to silica, so that there is always enough stabilizer is present to prevent the peroxidic compound from decomposing too quickly. By the slow Cleavage of the Siiciumverbindungen but a turbidity of the liquor is avoided, as well as a deposition of Silicate on the fibers or fabrics.
Die in Wasser löslichen Alkoxysilane haben eine ausgezeichnete Stabilisierwirkung. Besonders geeignet sind z. B. Tetrakis-(2-methoxyäthoxy)-silan, Methyl-tris-(2 - methoxyäthoxy) - silan, Dimethyl - bis - (2 - methoxyäthoxy)-silan. The water-soluble alkoxysilanes have an excellent stabilizing effect. Are particularly suitable z. B. tetrakis (2-methoxyethoxy) silane, methyl tris (2 - methoxyethoxy) silane, dimethyl bis (2 - methoxyethoxy) silane.
Verfahren zum Bleichen von natürlichen oder synthetischen FasernProcess for bleaching natural or synthetic fibers
und Textilienand textiles
sowie Zellstoff und Holzschliff mit wäßrigen peroxydhaltigenas well as pulp and wood pulp with aqueous peroxide-containing
BehandlungsbädernTreatment baths
Anmelder: Deutsche Gold- und Silber-ScheideanstaltApplicant: German gold and silver refinery
vormals Roessler, Frankfurt/M., Weißfrauenstr. 9formerly Roessler, Frankfurt / M., Weißfrauenstr. 9
Dr. Karl Dithmar, Frankfurt/M., ist als Erfinder genannt wordenDr. Karl Dithmar, Frankfurt / M., Has been named as the inventor
Die stabilisierende Wirkung der erfindungsgemäß zu verwendenden Siliciumverbindung kann verstärkt werden, wenn man den Lösungen außerdem wasserlösliche Alkalisalze oder insbesondere Erdalkalisalze, wie Salze des Magnesiums oder des Calciums, zusetzt.The stabilizing effect of the silicon compound to be used according to the invention can be increased, if you also add water-soluble alkali metal salts or, in particular, alkaline earth metal salts, such as salts of the Magnesium or calcium.
Das erfindungsgemäße Verfahren wird vorteilhaft in einem alkalischen Medium durchgeführt. Zur Einstellung des gewünschten pH-Wertes kann man an sich bekannte Puffersalze, wie Phosphate und dergleichen, verwenden.The process according to the invention is advantageously carried out in an alkaline medium. To set the desired p H -value can be a known buffer salts such as phosphates and the like use.
Besonders gute Erfolge werden erzielt, wenn man das Bleichen bei Temperaturen über 6O0C durchführt.Particularly good results are obtained when carrying out the bleaching at temperatures above 6O 0 C.
Der Flotte können außerdem an sich bekannte Textilhilfsmittel zugesetzt werden.Textile auxiliaries known per se can also be added to the liquor.
Zum Vergleich der Stabilisierwirkung eines Silans wurde diese mit der stabilisierenden Wirkung von Natronwasserglas verglichen. In der nachstehenden Tabelle ist der Gehalt an Aktivsauerstoff einer Bleichlösung bei 60° C nach verschieden langer Erwärmung wiedergegeben. Alle Lösungen enthielten ursprünglich so viel Wasserstoffperoxyd, daß der Gehalt an Aktivsauerstoff 1,8g je Liter betrug.To compare the stabilizing effect of a silane, this was compared with the stabilizing effect of Soda water glass compared. The table below shows the active oxygen content of a bleach solution reproduced at 60 ° C after heating for different lengths of time. All solutions originally contained this a lot of hydrogen peroxide so that the active oxygen content was 1.8 g per liter.
Alle Lösungen enthielten ferner 0,1 g kristallwasserhaltiges Magnesiumsulfat je Liter. Die Lösung I enthielt keinen weiteren Zusatz, die Lösung II Wasserglas und die Lösung III Tetrakis-(2-methoxyäthoxy)-silan in solchen Mengen, daß der SiCyGehalt 0,334 g/l betrug. Bei allen Versuchen war der pH-Wert auf 9 eingestellt.All solutions also contained 0.1 g of magnesium sulfate containing water of crystallization per liter. Solution I contained no further additive, solution II water glass and solution III tetrakis- (2-methoxyethoxy) -silane in such amounts that the SiCy content was 0.334 g / l. In all tests the pH value was adjusted to 9th
009 530/513009 530/513
' ■ Es ist deutlich zu sehen, daß bei Zusatz des Kieselsäureesters das Wasserstoffperoxyd ebenso stabil war wie bei Zusatz von Wasserglas, wenn beide Verbindungen zusammen mit Magnesiumsulfat verwendet wurden. Das scheinbare Ansteigen des Gehaltes an Aktivsauerstoff ist darauf zurückzuführen, daß bei dem Erwärmen auf 60°C etwa 10% des angewendeten Wassers verdampft sind.It can be clearly seen that when the silicic acid ester is added the hydrogen peroxide was just as stable as when waterglass was added when both compounds used together with magnesium sulfate. The apparent increase in the active oxygen content is due to the fact that when heated to 60 ° C about 10% of the water used has evaporated.
Das Verfahren der Erfindung läßt sich insbesondere für das Bleichen von Zellstoff, natürlichen oder synthetischen Fasern und daraus hergestellten Gespinsten, Geweben, Gewirken verwenden. Die gebleichte Ware hat einen weichen und vollen Griff, und die Netzfähigkeit ist sehr gut.The method of the invention is particularly useful for the bleaching of pulp, natural or synthetic Use fibers and webs, woven and knitted fabrics made from them. The bleached goods have a soft and full handle, and the wetting ability is very good.
lkg eines aus Baumwolle in Kette und Schuß bestehenden Gewebes, welches vorher alkalisch abgekocht War, wird bei einem Flottenverhältnis von 1:12 bei 95° C 2 Stunden in folgendem Peroxydbleichbad behandelt:lkg one made of cotton in warp and weft Tissue that was previously boiled with alkaline is used at a liquor ratio of 1:12 at 95 ° C Treated for 2 hours in the following peroxide bleach bath:
10,0 g Wasserstoffperoxyd von
35 Gewichtsprozent10.0 g of hydrogen peroxide from
35 weight percent
0,1 g Bittersalz (MgSO4 · 7H2O)0.1 g Epsom salt (MgSO 4 7H 2 O)
1,8 g Tetrakis-(2-methoxyäthoxy)-silan1.8 g of tetrakis (2-methoxyethoxy) silane
0,3 g Natriumhydroxyd0.3 g sodium hydroxide
0,3 g oxäthylierter Dodecylalkohol0.3 g of oxethylated dodecyl alcohol
pro Liter
Weichwasser per liter
Soft water
Nach der Behandlung wird in üblicher Weise gespült und getrocknet. Die Spuren von Baumwollschalen, welche immer die Gewebe unansehnlich machen, sind so weit gelöst und gelockert, daß sie beim Spannen des Gewebes herausfallen. Der Weißgrad beträgt 84% einer MgO-Bezugsplatte des Elrepho-Weißgradmessers von Zeiss. Das unbehandelte Gewebe zeigte 54%.After the treatment, it is rinsed and dried in the usual way. The traces of cotton peel, which Always make the tissues unsightly, are loosened and loosened so far that they become when the tissue is stretched fall out. The degree of whiteness is 84% of an MgO reference plate of the Elrepho whiteness meter from Zeiss. The untreated fabric showed 54%.
Der Aktivsauerstoff, welcher zu Anfang der Bleiche 1,8 g/l beträgt, wird durch das Gewebe bis auf 0,89 g/l verbraucht. Der p^-Wert sinkt von anfänglich 9,8 auf 9,2 herab.The active oxygen, which is 1.8 g / l at the beginning of the bleaching process, is reduced to 0.89 g / l through the fabric consumed. The p ^ value drops from an initial 9.8 to 9.2.
Auch ein in Kette und Schuß aus Polyesterfaser bestehendes Gewebe kann unter gleichen Bedingungen gebleicht werden und zeigt einen ebenso guten Weißeffekt. A fabric consisting of polyester fiber in warp and weft can also be used under the same conditions can be bleached and shows an equally good whiteness effect.
Claims (2)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL97796D NL97796C (en) | 1958-05-29 | ||
| DED28208A DE1083221B (en) | 1958-05-29 | 1958-05-29 | Process for bleaching natural or synthetic fibers and textiles as well as cellulose and wood pulp with aqueous treatment baths containing peroxide |
| GB17002/59A GB890300A (en) | 1958-05-29 | 1959-05-19 | Process for bleaching crude wood pulp, natural or synthetic fibres and textiles produced from or containing such fibres |
| FR795425A FR1225313A (en) | 1958-05-29 | 1959-05-23 | Process for the treatment of cellulose, natural or artificial fibers and articles containing them |
| US816369A US3003910A (en) | 1958-05-29 | 1959-05-28 | Peroxidic bleach containing silicic acid ester |
| CH7325059A CH368463A (en) | 1958-05-29 | 1959-10-01 | Process for bleaching textiles made from artificial and / or natural fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DED28208A DE1083221B (en) | 1958-05-29 | 1958-05-29 | Process for bleaching natural or synthetic fibers and textiles as well as cellulose and wood pulp with aqueous treatment baths containing peroxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1083221B true DE1083221B (en) | 1960-06-15 |
Family
ID=7039567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DED28208A Pending DE1083221B (en) | 1958-05-29 | 1958-05-29 | Process for bleaching natural or synthetic fibers and textiles as well as cellulose and wood pulp with aqueous treatment baths containing peroxide |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3003910A (en) |
| CH (1) | CH368463A (en) |
| DE (1) | DE1083221B (en) |
| FR (1) | FR1225313A (en) |
| GB (1) | GB890300A (en) |
| NL (1) | NL97796C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997023666A1 (en) * | 1995-12-22 | 1997-07-03 | Lenzing Aktiengesellschaft | Cellulose moulded article and method of producing same |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL84209C (en) * | 1952-02-09 | 1900-01-01 | ||
| NL266614A (en) * | 1960-07-07 | |||
| US3156654A (en) * | 1961-06-19 | 1964-11-10 | Shell Oil Co | Bleaching |
| NL282587A (en) * | 1961-08-31 | |||
| DE1297065B (en) * | 1963-07-06 | 1969-06-12 | Degussa | Process for washing and / or bleaching textiles |
| US3462344A (en) * | 1966-05-31 | 1969-08-19 | Fmc Corp | Superbleaching of wood pulps |
| SE355614B (en) * | 1970-05-13 | 1973-04-30 | Mo Och Domsjoe Ab | |
| US3951594A (en) * | 1972-11-27 | 1976-04-20 | Pennwalt Corporation | Hydrogen peroxide bleaching solutions and process |
| FR2557605B1 (en) * | 1983-12-29 | 1987-12-11 | Atochem | PROCESS FOR BLEACHING PAPER PULP BY HYDROGEN PEROXIDE |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US988874A (en) * | 1909-12-02 | 1911-04-04 | Hugo Henkel | Process for removing printers' ink from printed paper by means of bleaching substances having an alkaline action. |
| US2097517A (en) * | 1932-11-23 | 1937-11-02 | Monsanto Chemicals | Soluble hypochlorite composition |
| US2185632A (en) * | 1937-04-12 | 1940-01-02 | Ici Ltd | Bleaching surfaces without immersion |
| US2559342A (en) * | 1949-07-26 | 1951-07-03 | Gen Electric | Organo-silicon compositions |
-
0
- NL NL97796D patent/NL97796C/xx active
-
1958
- 1958-05-29 DE DED28208A patent/DE1083221B/en active Pending
-
1959
- 1959-05-19 GB GB17002/59A patent/GB890300A/en not_active Expired
- 1959-05-23 FR FR795425A patent/FR1225313A/en not_active Expired
- 1959-05-28 US US816369A patent/US3003910A/en not_active Expired - Lifetime
- 1959-10-01 CH CH7325059A patent/CH368463A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997023666A1 (en) * | 1995-12-22 | 1997-07-03 | Lenzing Aktiengesellschaft | Cellulose moulded article and method of producing same |
Also Published As
| Publication number | Publication date |
|---|---|
| CH368463A (en) | 1963-05-31 |
| GB890300A (en) | 1962-02-28 |
| FR1225313A (en) | 1960-06-30 |
| CH7325059A4 (en) | 1962-12-29 |
| NL97796C (en) | |
| US3003910A (en) | 1961-10-10 |
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