DE353131C - Process for neutralizing mineral tanned leathers - Google Patents
Process for neutralizing mineral tanned leathersInfo
- Publication number
- DE353131C DE353131C DE1919353131D DE353131DD DE353131C DE 353131 C DE353131 C DE 353131C DE 1919353131 D DE1919353131 D DE 1919353131D DE 353131D D DE353131D D DE 353131DD DE 353131 C DE353131 C DE 353131C
- Authority
- DE
- Germany
- Prior art keywords
- leather
- neutralizing
- tanned leathers
- tanned
- water
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
- C14C3/04—Mineral tanning
- C14C3/06—Mineral tanning using chromium compounds
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
- C14C3/04—Mineral tanning
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Description
Verfahren zum Neutralisieren von mineralisch gegerbten Ledern. Das Hauptpatent betrifft ein Verfahren zum Neutralisieren von Chromleder, also eines mineralisch gegerbten Leders mit Soda oder anderen kohlensauren Salzen der Alkalien .oder alkalischen Erden. Das Verfahren ist dadurch gekennzeichnet, daß man beim Neutralisieren mit den genannten Stoffen gleichzeitig Formaldehyd oder niedere fettsaure oder oxyfettsaure Salze der Alkalien oder alkalischen Erden mitbenutzt. Dadurch wird die Wirkung von Borax, dem bisher besten NeutralisierungsmIttel, nicht nur erreicht, sondern noch übertroffen.Process for neutralizing mineral tanned leather. That The main patent relates to a process for neutralizing chrome leather, that is to say one mineral-tanned leather with soda or other carbonic acid salts of alkalis .or alkaline earths. The method is characterized in that when Neutralize formaldehyde or lower fatty acid at the same time as the substances mentioned or oxy-fatty acid salts of alkalis or alkaline earths are also used. Through this the effect of borax, the best neutralizing agent to date, is not only achieved, but exceeded.
Nach dem Verfahren Ües, i. Zusatzpatentes 353130 haben auch Al'kal'i- unid Erdalkalisalze anderer :schwacher anorganischer Säuren als der Kohlensäure, wie z. B. Natriumsulfit, neben den Alkali- oder Erdalkalikarbonaten eine ähnliche Wirkung wie die obengenannten organischen Verbindungen, so @daß sie auch mit Vorteil an Stelle jener beim Neutralisieren mitverwendet werden können.According to the procedure Ües, i. Additional patent 353130 also have Al'kal'i- unid alkaline earth salts of other: weak inorganic acids than carbonic acid, such as B. sodium sulfite, in addition to the alkali or alkaline earth carbonates, a similar one Effect like the organic compounds mentioned above, so that they are also beneficial can be used in place of those when neutralizing.
Es wunde nun weiter gefunden, daß Idas angegebene Neutralisierungsverfahren des Hauptpatentes also mit Alkalikarbonaten oder Erdalkalikarbonaten unrter Mitverwendunb von Formalidehyid oder niederen fettsauren oder oxyfettsauren Salzen "der Alkalien .oder alkalischen Erden einer allgemeinen Anwendung bei beliebigen Mineralgerbungen fähig ist. Mit denselben Mitteln können also, nicht nur Chromleder, sondern auch Eisen- und Alaunleder vorteilhaft neutralisiert werden.It was now further found that Ida's stated neutralization process of the main patent, i.e. with alkali carbonates or alkaline earth carbonates, unrestricted co-use of formaldehyde or lower fatty acid or oxyfatty acid salts "of the alkalis . or alkaline earths of general use for any mineral tanning is capable. So with the same means, not only chrome leather, but also Iron and alum leather are advantageously neutralized.
Schließlich ist ebenso, wie für Chromleider auch für beliebige mineralisch gegerbte Leder, Eisen- und Alaunleder, der Ersatz der genannten organischen Mittel durch Alkali-und Erdalkalisalze schwacher anorganischer Säuren,, wie z. B. Natriumsulfit, anwendbar. Beispiel i.Finally, just as for chrome, it is also mineral for any tanned leather, iron and alum leather, the substitute for the organic means mentioned by alkali and alkaline earth salts of weak inorganic acids, such as. B. sodium sulfite, applicable. Example i.
ioo kg Blößen werden mit einer oder bekannten Eisengerbbrühen gegerbt und dann in einem Bad von Zoo 1 Wasser, 4. kg Kreide und i kg Natriiunazetat bewegt, b-is die Neutralisierung eingetreten isst, und @dann .mit Wasser :ausgewaschen.100 kg of pelts are tanned with one of the known iron tanning liquors and then moved 1 water, 4 kg of chalk and 1 kg of sodium acetate in a bath at Zoo, until neutralization has occurred, and then .with water: washed out.
Beispiel 2.Example 2.
ioo kg Blößen werden, in einer Lösung von 8 kg Kalialaun, 3 kg Salz in ioo 1 Wasser gegerbt, abtropfen gelassen und in einem Bad aus Zoo 1 Wasser, i kg Natriumsulfit und i kg Soda bewegt, bis. Neutralisierung eingetreten ist, und dann mit Wasser ausgewaschen.100 kg of pelts become 3 kg of salt in a solution of 8 kg of potash alum tanned in 100 1 water, allowed to drain and in a bath of 1 zoo water, i kg of sodium sulfite and i kg of soda moved up. Neutralization has occurred, and then washed out with water.
Man kann die gegerbten Alaun- und Eisenleder auch mit idem Üb erschuß an Gerbbrühe auftrocknen und erst dann den Üiberschuß an Gerbstoff auswaschen und neutralisieren. 'in dit'serri 'Fag braucht man weniger Nei-It;alisierung=sxrittel.The tanned alum and iron leather can also be used with the same excess of tanning broth dry up and only then the excess of tanning agent wash out and neutralize. 'in dit'serri' Fag one needs less Nei-It; alisierung = sxrittel.
Beispiel 3.Example 3.
Ioo -kg..Blößen .werden mit einer der bekannteii °Ehengerbbrühen gegerbt, abtropfen gelassen und bei mäßiger Temperatur getrocknet. Ioo kg trockene Leder werden mit 5001 Wasser im Gerbfaß gewalkt, wobei sie aufweichen, mit mehr Wasser gewaschen und in einer Lösung von 5oo 1 Waliser, o,5 kg Soda und 0,5 kg Natriumazetat neutralisiert.100 kg pods are tanned with one of the well-known marriage tanning broths, drained and dried at a moderate temperature. 100 kg of dry leather are drummed with 500 liters of water in a tanning drum, where they soften, washed with more water and neutralized in a solution of 500 liters of Welsh, 0.5 kg of soda and 0.5 kg of sodium acetate.
Claims (1)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE516951X | 1916-11-17 | ||
DE352285T | 1916-11-18 | ||
DE353130T | 1919-12-02 | ||
DE353131T | 1919-12-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE353131C true DE353131C (en) | 1922-05-12 |
Family
ID=60571012
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1916352285D Expired DE352285C (en) | 1916-11-17 | 1916-11-18 | Process for neutralizing chrome leather |
DE1919353130D Expired DE353130C (en) | 1916-11-17 | 1919-12-02 | Process for neutralizing chrome leather |
DE1919353131D Expired DE353131C (en) | 1916-11-17 | 1919-12-02 | Process for neutralizing mineral tanned leathers |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1916352285D Expired DE352285C (en) | 1916-11-17 | 1916-11-18 | Process for neutralizing chrome leather |
DE1919353130D Expired DE353130C (en) | 1916-11-17 | 1919-12-02 | Process for neutralizing chrome leather |
Country Status (2)
Country | Link |
---|---|
DE (3) | DE352285C (en) |
FR (1) | FR516951A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE750988C (en) * | 1937-01-26 | 1953-03-02 | Ig Farbenindustrie Ag | Process for tanning with tanning agents containing aluminum |
US4712271A (en) * | 1984-06-23 | 1987-12-15 | Paul Hettich Gmbh & Co. | Mounting plate for a furniture hinge which is adjustable in height |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE937371C (en) * | 1944-10-03 | 1956-01-05 | Boehme Fettchemie G M B H | Process for de-acidifying chrome leather |
-
1916
- 1916-11-18 DE DE1916352285D patent/DE352285C/en not_active Expired
-
1918
- 1918-07-12 FR FR516951A patent/FR516951A/en not_active Expired
-
1919
- 1919-12-02 DE DE1919353130D patent/DE353130C/en not_active Expired
- 1919-12-02 DE DE1919353131D patent/DE353131C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE750988C (en) * | 1937-01-26 | 1953-03-02 | Ig Farbenindustrie Ag | Process for tanning with tanning agents containing aluminum |
US4712271A (en) * | 1984-06-23 | 1987-12-15 | Paul Hettich Gmbh & Co. | Mounting plate for a furniture hinge which is adjustable in height |
Also Published As
Publication number | Publication date |
---|---|
FR516951A (en) | 1921-04-28 |
DE353130C (en) | 1922-05-20 |
DE352285C (en) | 1922-04-22 |
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