AT162948B - Process for the production of agents for improving the wet fastness properties of directly dyed cellulose fibers - Google Patents
Process for the production of agents for improving the wet fastness properties of directly dyed cellulose fibersInfo
- Publication number
- AT162948B AT162948B AT162948DA AT162948B AT 162948 B AT162948 B AT 162948B AT 162948D A AT162948D A AT 162948DA AT 162948 B AT162948 B AT 162948B
- Authority
- AT
- Austria
- Prior art keywords
- agents
- improving
- cellulose fibers
- production
- fastness properties
- Prior art date
Links
- 229920003043 Cellulose fiber Polymers 0.000 title claims description 4
- 239000003795 chemical substances by application Substances 0.000 title claims description 3
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 238000000034 method Methods 0.000 title claims description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 17
- 150000003863 ammonium salts Chemical class 0.000 claims description 4
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 150000007513 acids Chemical class 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 239000000047 product Substances 0.000 description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 239000007859 condensation product Substances 0.000 description 3
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 238000009967 direct dyeing Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Coloring (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Herstellung von Mitteln zur Verbesserung der Nassechtheiten direkt gefärbter
Cellulosefasern
Es ist z. B. aus der britischen Patentschrift Nr. 576562 und der amerikanischen Patentschrift Nr. 2214067 bekannt, dass man durch Kondensation von Dicyandiamid mit Formaldehyd zu Erzeugnissen gelangt, welche die Nassechtheiten von Direktfärbungen zu verbessern vermögen. Diese Kondensationsprodukte haben jedoch den Nachteil, dass sie flüssig stark klebrig sind und in fester Form infolge ihrer Hygroskopizität zum Zusammenbacken neigen, was ihre Verwendung erschwert ; zudem sind sie unbeständig gegen Sulfationen.
Es wurde nun gefunden, dass durch Nachkondensation dieser Dicyandiamid-FormaldehydKondensationsprodukte mit Ammonsalzen von Mineralsäuren und Weiterkondensation mit Formaldehyd, nicht hygroskopische Produkte von hoher Wirksamkeit und Beständigkeit gegen Sulfationen erhalten werden. Wird dagegen Dicyandiamid allein, an Stelle des DicyandiamidFormaldehyd-Kondensationsproduktes, mit Ammonsalzen umgesetzt und anschliessend mit Formaldehyd kondensiert, so werden hygroskopische Erzeugnisse erhalten, die durch Sulfationen gefällt werden.
EMI1.1
Rückfluss gekocht, 54 Teile Ammonchlorid zugesetzt, weitere 4 Stunden gekocht und schliesslich mit 200-300 Teilen Formaldehyd (30% ig) in 4 Stunden bei 80 fertigkondensiert.
Nach dem Eindampfen wird ein nicht hygroskopisches Harz erhalten. 0-3 dieses Produktes pro Liter Behandlungsflotte machen direkt gefärbte Cellulose- fasern wasserecht und verbessern die Waschechtheit deutlich.
Die Mengenverhältnisse dieses Beispiels können variiert werden, so kann z. B. die Menge des bei der ersten Kondensation verwendeten Formaldehyds auf das l-5fache oder höher vermehrt werden. Wenn statt Ammonchlorid ein anderes anorganisches Ammonsalz wie Ammonsulfat oder - phosphat verwendet wird, so kommt man zu Produkten mit ähnlichen Eigenschaften.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the production of agents for improving the wet fastness properties of directly dyed
Cellulose fibers
It is Z. B. from British Patent No. 576562 and American Patent No. 2214067 it is known that the condensation of dicyandiamide with formaldehyde leads to products which are able to improve the wet fastness properties of direct dyeings. However, these condensation products have the disadvantage that they are very sticky in liquid form and tend to stick together in solid form due to their hygroscopicity, which makes their use difficult; they are also not resistant to sulfate ions.
It has now been found that by post-condensing these dicyandiamide-formaldehyde condensation products with ammonium salts of mineral acids and further condensation with formaldehyde, non-hygroscopic products of high effectiveness and resistance to sulfate ions are obtained. If, on the other hand, dicyandiamide alone, instead of the dicyandiamide-formaldehyde condensation product, is reacted with ammonium salts and then condensed with formaldehyde, hygroscopic products are obtained which are precipitated by sulfate ions.
EMI1.1
Boiled reflux, added 54 parts of ammonium chloride, boiled for a further 4 hours and finally condensed with 200-300 parts of formaldehyde (30%) in 4 hours at 80.
After evaporation, a non-hygroscopic resin is obtained. 0-3 of this product per liter of treatment liquor make directly dyed cellulose fibers waterfast and significantly improve the wash fastness.
The proportions of this example can be varied; B. the amount of formaldehyde used in the first condensation can be increased to 1-5 times or more. If, instead of ammonium chloride, another inorganic ammonium salt such as ammonium sulfate or phosphate is used, products with similar properties are obtained.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH162948X | 1944-03-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT162948B true AT162948B (en) | 1949-04-25 |
Family
ID=4416059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT162948D AT162948B (en) | 1944-03-14 | 1947-12-01 | Process for the production of agents for improving the wet fastness properties of directly dyed cellulose fibers |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT162948B (en) |
-
1947
- 1947-12-01 AT AT162948D patent/AT162948B/en active
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