DE602273C - Process for tanning pickled hide skin with chromium salts - Google Patents
Process for tanning pickled hide skin with chromium saltsInfo
- Publication number
- DE602273C DE602273C DEU11843D DEU0011843D DE602273C DE 602273 C DE602273 C DE 602273C DE U11843 D DEU11843 D DE U11843D DE U0011843 D DEU0011843 D DE U0011843D DE 602273 C DE602273 C DE 602273C
- Authority
- DE
- Germany
- Prior art keywords
- tanning
- chromium salts
- hide skin
- pelts
- chromium
- 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
- 150000001844 chromium Chemical class 0.000 title claims description 9
- 238000000034 method Methods 0.000 title claims description 6
- 239000011148 porous material Substances 0.000 claims 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 235000002639 sodium chloride Nutrition 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- JHWIEAWILPSRMU-UHFFFAOYSA-N 2-methyl-3-pyrimidin-4-ylpropanoic acid Chemical compound OC(=O)C(C)CC1=CC=NC=N1 JHWIEAWILPSRMU-UHFFFAOYSA-N 0.000 description 1
- 240000005979 Hordeum vulgare Species 0.000 description 1
- 235000007340 Hordeum vulgare Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 206010000496 acne Diseases 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000009963 fulling Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 235000015099 wheat brans Nutrition 0.000 description 1
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
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 Gerben von gepickelten Hautblößen mit Chromsalzen Die Gerbung von Fellen und Häuten wurde bisher stets unter Anwendung größerer Flüssigkeitsmengen ausgeführt. Man glaubte von dieser- Arbeitsweise auch nicht bei der Gerbung mit Chromsalzen abweichen zu können. Selbst eines der neuesten Verfahren zeigt nur den Fortschritt, daß die angewandten Chromgerbstoffe in möglichst geringer Flottenmenge zum Gerben verwendet wurden. Bei diesem Verfahren ist die Anwendung eines Walkfasses sowie eines Elektromotors; der es eine gewisse Zeit im Umlauf erhält, notwendig. Dazu kommt der von dem Antriebsmotor verbrauchte elektrische Strom.Process for tanning pecked skin with chromium salts Die Tanning of hides and skins has always been done with the use of larger amounts of liquid executed. One did not believe in this way of working with the tanning either Chromium salts to differ. Even one of the latest methods only shows that Progress that the applied chrome tanning agents in the smallest possible amount of liquor were used for tanning. This process involves the use of a fulling barrel as well as an electric motor; which keeps it in circulation for a certain period of time, is necessary. In addition, there is the electrical current consumed by the drive motor.
Es wurde nun gefunden, daß man die Gerbung ohne die Anwendung eines Walkfasses ausführen kann. Hierzu werden die gepickelten Blößen erfindungsgemäß auf einer oder beiden 'Seiten lediglich mit einem basischen Chromsalz in trockener Form bestreut und dann einfach aufeinandergelegt. Die in den Blößen enthaltene Feuchtigkeit genügt vollkommen für die Aufsaugung des Chromsalzes bzw. die vollkommene Durchgerbung der Blößen. Die für die Gerbung erforderliche Zeit beträgt je nach der Dicke der Häute oder Felle z bis 3 Stunden. Durch diese Behandlung tritt gegenüber der bekannten Gerbung mit Chromsalzen in größeren oder kleineren Flottenmengen keine Lockerung des Narbcns oder der ganzen Blöße ein, da eine gleichzeitige mechanische Behandlung bei der Gerbung vermieden wird.It has now been found that the tanning can be done without the use of a Can run full barrel. For this purpose, the pecked pelts are used according to the invention on one or both 'sides only with a basic chromium salt in drier Form sprinkled and then simply placed on top of each other. The moisture contained in the pelts is completely sufficient for the absorption of the chrome salt or the complete tanning the nakedness. The time required for tanning is depending on the thickness of the Hides or skins for up to 3 hours. This treatment occurs over against the known Tanning with chromium salts in larger or smaller quantities of liquor does not loosen of the scar or the whole nakedness, since a simultaneous mechanical treatment is avoided during tanning.
Nach der so erfolgten Gerbung werden die Blößen in üblicher Weise im Faß etwa i Stunde lang neutralisiert. Nach der Neutralisierung werden die Leder auf Böcken gelagert, bis sie der üblichen weiteren Bearbeitung unterworfen werden.After the tanning has taken place in this way, the pelts are made in the usual way neutralized in the barrel for about an hour. After neutralization, the leathers stored on trestles until they are subjected to the usual further processing.
.Ausführungsbeispiele Das zur Gerbung verwendete Chromsalz kann z. B. in folgender Weise gewonnen werden..Executive examples The chromium salt used for tanning can, for. B. can be obtained in the following manner.
Es wird zunächst eine Chrombriihe aus Zoo Teilen Wasser, 5o Teilen Natriumbichromat, 5o Teilen Schwefelsäure (6o° Be), 2o Teilen Zucker, io Teilen Kochsalz; io Teilen calc. Soda hergestellt. Diese Brühe wird auf 2i bis 25'B6 eingedickt und schließlich in einem geeigneten Apparat bis zur Pulverform getrocknet. Diesem Pulver werden 15 % Mehl oder Gersten- oder Weizenkleie beigefügt. Die fertige Mischung dient zum' Bestreuen der zu _ gerbenden Blößen.First, a chromium broth of zoo parts of water, 50 parts of sodium dichromate, 50 parts of sulfuric acid (60 ° Be), 20 parts of sugar, 10 parts of table salt; io share calc. Soda made. This broth is thickened to 2i to 25'B6 and finally dried in a suitable apparatus until it is powdery. 1 5 % flour or barley or wheat bran are added to this powder. The finished mixture is used to sprinkle the pelts to be tanned.
Das Verfahren wird in der Weise ausgeführt, daß die gebeizten Blößen vor dem Gerben mit einer wäßrigen Lösung von 7° B6 3 Stunden lang gepickelt werden. Dazu verwendet man auf i oo kg Blöße i kg Schwefelsäure, i o kg Kochsalz und 4. kg schwefelsaure Tonerde. Nach dem Pickeln . werden die Blößen erfindungsgemäß mit Chromsalz behandelt, wobei letzteres mit Kochsalz gestreckt sein kann. Die Blößen werden auf beiden Seiten bestreut und so aufeinandergeschichtet, daß sich die Fleischseite unten und die Narbenseite oben befindet. Am folgenden Tage werden die Blößen im Faß oder Haspel mittels einer iprozentigen Lösung von calc. Soda oder Natriumbicarbonat etwa i Stunde entsäuert und darauf 1o Minuten lang kalt gewaschen.The process is carried out in such a way that the pickled pelts before tanning are peeled with an aqueous solution of 7 ° B6 for 3 hours. For this purpose, 1 kg of sulfuric acid, 10 kg of table salt and 4 are used on 100 kg of pelt. kg of sulfuric clay. After pimples. the pelts are according to the invention with Treated chromium salt, the latter can be stretched with table salt. The nakedness are sprinkled on both sides and stacked so that the meat side is at the bottom and the grain side at the top. On the following day, the nakedness in the Barrel or reel by means of an 1 percent solution of calc. soda or Sodium bicarbonate deacidified for about an hour and then washed cold for 10 minutes.
Ein zweites Beispiel ist das folgende: i oo kg gepickelte Blößen werden mit 15 kg Chromgerbstoff bestreut, welches 15 % Cr. 0,3 enthält und mit i o kg Kochsalz gut vermischt ist. Ist der Chromgerbstoff konzentrischer, wird dessen Menge vermindert. ' -A second example is the following: 100 kg of pecked pelts are sprinkled with 15 kg of chrome tanning material, which contains 15% Cr. 0.3 and is well mixed with 10 kg of table salt. If the chrome tanning agent is more concentric, its amount is reduced. '-
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEU11843D DE602273C (en) | 1932-07-24 | 1932-07-24 | Process for tanning pickled hide skin with chromium salts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEU11843D DE602273C (en) | 1932-07-24 | 1932-07-24 | Process for tanning pickled hide skin with chromium salts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE602273C true DE602273C (en) | 1934-09-05 |
Family
ID=7567766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEU11843D Expired DE602273C (en) | 1932-07-24 | 1932-07-24 | Process for tanning pickled hide skin with chromium salts |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE602273C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1244332B (en) * | 1961-07-19 | 1967-07-13 | Bayer Ag | Process for the rapid tanning of medium or heavy leathers |
| DE1273119B (en) * | 1961-08-03 | 1968-07-18 | Bayer Ag | Process for the rapid tanning of medium or heavy skin |
-
1932
- 1932-07-24 DE DEU11843D patent/DE602273C/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1244332B (en) * | 1961-07-19 | 1967-07-13 | Bayer Ag | Process for the rapid tanning of medium or heavy leathers |
| DE1273119B (en) * | 1961-08-03 | 1968-07-18 | Bayer Ag | Process for the rapid tanning of medium or heavy skin |
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