DE353130C - Process for neutralizing chrome leather - Google Patents
Process for neutralizing chrome leatherInfo
- Publication number
- DE353130C DE353130C DE1919353130D DE353130DD DE353130C DE 353130 C DE353130 C DE 353130C DE 1919353130 D DE1919353130 D DE 1919353130D DE 353130D D DE353130D D DE 353130DD DE 353130 C DE353130 C DE 353130C
- Authority
- DE
- Germany
- Prior art keywords
- neutralizing
- chrome leather
- alkalis
- alkaline earths
- chrome
- 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 Chromleder. Das Hauptpatent betrifft ein Verfahren zum Neutralisieren von Chromleder 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, nichtnur erreicht, sondern noch übertroffen.Process for neutralizing chrome leather. The main patent concerns a method of neutralizing chrome leather with soda or other carbonates Salts of alkalis or alkaline earths. The procedure is characterized by that when neutralizing with the substances mentioned, formaldehyde or at the same time lower fatty acid or oxy fatty acid salts of alkalis or alkaline earths are also used. This will not only reduce the effect of borax, the best neutralizing agent to date achieved, but exceeded.
Es wurde nun gefunden, daß auch Alkali-und Erdalkalisalze anderer schwacher anorganischer Säuren als der Kohlensäure, wie z. B. Sulfite, Thiosulfate, Phosphite, Arsenite, Arsenate, neben den Alkali- oder Erdalkalikarbonaten eine ähnliche 'Wirkung zeigen wie die oben genannten organischen Verbindungen. Es können also jene anorganischen Salze gleichfalls mit Vorteil beim Neutralisieren von Chromleder mitverwendet werden. B eispiel.It has now been found that alkali and alkaline earth salts of others weaker inorganic acids than carbonic acid, such as B. sulfites, thiosulfates, Phosphites, arsenites, arsenates, in addition to the alkali or alkaline earth carbonates, a similar one 'Show the same effect as the organic compounds mentioned above. So it can those inorganic salts also have an advantage in neutralizing chrome leather can also be used. Example.
ioo kg Blößen werden mit einer der bekannten Chromgerbbrühen gegerbt, mit Nasser gewaschen, dann in einem Bad von 1501 Wasser mit 8oo g Kalziumkarbonat und Zoo g Natriumsulfit bewegt, bis die Neutralisierung eingetreten ist, und dann nochmals mit Wasser ausgewaschen.100 kg of pelts are tanned with one of the well-known chrome tanning liquors, Washed with water, then in a bath of 150 liters of water with 800 g of calcium carbonate and zoo g sodium sulfite agitated until neutralization has occurred, and then washed out again with water.
Claims (1)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE516951X | 1916-11-17 | ||
DE352285T | 1916-11-18 | ||
DE353131T | 1919-12-02 | ||
DE353130T | 1919-12-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE353130C true DE353130C (en) | 1922-05-20 |
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 |
DE1919353131D Expired DE353131C (en) | 1916-11-17 | 1919-12-02 | Process for neutralizing mineral tanned leathers |
DE1919353130D Expired DE353130C (en) | 1916-11-17 | 1919-12-02 | Process for neutralizing chrome leather |
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 |
DE1919353131D Expired DE353131C (en) | 1916-11-17 | 1919-12-02 | Process for neutralizing mineral tanned leathers |
Country Status (2)
Country | Link |
---|---|
DE (3) | DE352285C (en) |
FR (1) | FR516951A (en) |
Cited By (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 |
Families Citing this family (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 |
DE8418939U1 (en) * | 1984-06-23 | 1984-09-20 | Paul Hettich GmbH & Co, 4983 Kirchlengern | MOUNTING PLATE FOR A HIGH-ADJUSTABLE FURNITURE HINGE |
-
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 DE1919353131D patent/DE353131C/en not_active Expired
- 1919-12-02 DE DE1919353130D patent/DE353130C/en not_active Expired
Cited By (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 |
Also Published As
Publication number | Publication date |
---|---|
DE352285C (en) | 1922-04-22 |
DE353131C (en) | 1922-05-12 |
FR516951A (en) | 1921-04-28 |
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