DE541236C - Process for preparing fish skins for quick tanning - Google Patents
Process for preparing fish skins for quick tanningInfo
- Publication number
- DE541236C DE541236C DEE31220A DEE0031220A DE541236C DE 541236 C DE541236 C DE 541236C DE E31220 A DEE31220 A DE E31220A DE E0031220 A DEE0031220 A DE E0031220A DE 541236 C DE541236 C DE 541236C
- Authority
- DE
- Germany
- Prior art keywords
- tanning
- skins
- treatment
- preparing fish
- fish skins
- 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
- 241000251468 Actinopterygii Species 0.000 title claims description 5
- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000002253 acid Substances 0.000 claims description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 6
- 102000004190 Enzymes Human genes 0.000 claims description 4
- 108090000790 Enzymes Proteins 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 235000014655 lactic acid Nutrition 0.000 claims description 3
- 150000007524 organic acids Chemical class 0.000 claims description 3
- 239000000834 fixative Substances 0.000 claims description 2
- 239000004310 lactic acid Substances 0.000 claims description 2
- 235000005985 organic acids Nutrition 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 6
- 235000011941 Tilia x europaea Nutrition 0.000 description 6
- 239000004571 lime Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- 241001552704 Centrophorus Species 0.000 description 1
- 241000251730 Chondrichthyes Species 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 235000017343 Quebracho blanco Nutrition 0.000 description 1
- 241000208225 Rhus Species 0.000 description 1
- 235000014220 Rhus chinensis Nutrition 0.000 description 1
- 241000065615 Schinopsis balansae Species 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- -1 milk or Acetic acid Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C14C1/00—Chemical treatment prior to tanning
- C14C1/08—Deliming; Bating; Pickling; Degreasing
-
- 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 zur Vorbereitung von Fischhäuten für die Schnellgerbung Die vorliegende Erfindung betrifft ein Verfahren zur Vorbereitung von Fischhäuten für die Schnellgerbung durch Behandlung mit organischen Säuren, wie Milch- oder Essigsäure, bei etwa 3o° nach der Weiche und eventueller Kalkbehandlung, ein Verfahren, welches im wesentlichen sich dadurch kennzeichnet, daß die Behandlung mit einer wenigstens o,5prozentigen Säurelösung und in Gegenwart bekannter Enzymbeizmittel erfolgt.Process for preparing fish skins for rapid tanning The present invention relates to a method for preparing fish skins for quick tanning by treatment with organic acids such as milk or Acetic acid, at about 30 ° after soaking and possible lime treatment, a process which is essentially characterized in that the treatment with a at least 0.5 percent acid solution and in the presence of known enzyme pickling agents he follows.
Die Behandlung der Häute in diesem Bad bewirkt. daß der gesamte Gerbprozeß im Laufe einer außerordentlich kurzen Zeit durchgeführt werden kann.Treating the skins in this bath is effective. that the whole tanning process can be carried out in an extremely short period of time.
Es. ist bereits bekannt, Häute, welche schon gekälkt sind, mittels eines eine organische Säure enthaltenden Bades zu neutralisieren. Diese Neutralisierung in einem Säurebad wird sowohl für gewöhnliche Häute als auch für Fischhäute angewendet. Jedoch hat man in diesem Falle wesentlich schwächere Säurelösungen benutzt, in denen man normalerweise die Häute nur so lange behandelte, bis der Kalk gerade neutralisiert war. Bei der vorliegenden Erfindung wird jedoch eine viel konzentriertere Säurelösung verwendet,` wodurch erreicht wird, daß die Säure immer im Lberschuß über etwaige noch in den Häuten vorhandene Kalkmengen zugegen ist. Es ist also für die vorliegende Erfindung an und für sich gleichgültig, ob eine Kalkbehandlung vorgenommen wird oder nicht. Überdies enthält das gemäß der vorliegenden Erfindung verwendete Säurebad noch eine bekannte Enzymbeize, was neu ist.It. is already known to use hides that have already been limed a bath containing an organic acid. This neutralization in an acid bath is used for both ordinary skins and fish skins. However, in this case, much weaker acid solutions were used in which normally the hides were only treated until the lime had just been neutralized was. However, the present invention uses a much more concentrated acid solution used, whereby it is achieved that the acid is always in excess of any amounts of lime still present in the skins are present. So it is for the present Invention in and of itself does not matter whether a lime treatment is carried out or not. In addition, the acid bath used according to the present invention contains another well-known enzyme pickle, which is new.
Die auf die Säurebehandlung folgende Gerbung kann mit einem vegetabilischen oder mineralischen Gerbstoff erfolgen und kann zufolge der speziellen Vorbehandlung sehr schnell durchgeführt werden.The tanning following the acid treatment can be done with a vegetable or mineral tanning agent and can be done according to the special pretreatment can be done very quickly.
Die Erfindung soll im folgenden an Hand eines Ausführungsbeispieles unter Verwendung vegetabilischer Gerbstoffe beschrieben werden.In the following, the invention will be based on an exemplary embodiment are described using vegetable tanning agents.
Beispiel Haifischhäute von der Art Centrophorus werden geweicht. Blößengewicht 2o kg. Diese werden mit 2 % Kalk 3 bis ¢ Stunden im Haspel geäschert, hierauf 5 Stunden in fließendem Wasser gewaschen, bis keine alkalische Reaktion mehr festgestellt werden kann. Die so geschwellten und kalkfrei gewaschenen Häute kommen in ein Bad, welches etwa 20"o eines tryptische Ammonsalze enthaltenden Enzympräparates, wie solches '# sich unter im der Handel geschützten befindet, Bezeichnung enthält Oropon und t o'o I# Milchsäure. Die Badtemperatur beträgt 3o° C. Die ganze Behandlung wird in einem Beizhaspel ausgeführt. Dauer i Stunde. Die Häute kommen hierauf nach kurzem Waschen in das Gerbfaß, welches eine konzentrierte Gerbbrühe von etwa 2o0`o Sumach und i o o;'p Quebracho enthält. Nach b Stunden sind die Blößen gar, insbesondere wenn das Gerbfaß je eine halbe Stunde abwechselnd im entgegengesetzten- Sinne läuft. Hierauf wird kurz nachchromiert, wie üblich gefettet und zugerichtet. -Example shark skins of the species Centrophorus are soaked. Pelt weight 2o kg. These are ashed with 2% lime for 3 to ¢ hours in the reel, then 5 Washed for hours in running water until no more alkaline reaction was found can be. The skins, swollen and washed free of lime, are put into a bath. which contains about 20 "o of an enzyme preparation containing tryptic ammonium salts, such as such '# is under protected in trade, the designation contains Oropon and t o'o I # lactic acid. The bath temperature is 30 ° C. The whole treatment is done executed in a pickling reel. Duration i hour. The skins come after a short time Wash in the tanning barrel, which is a concentrated tanning broth of about 2o0`o sumac and i o o; 'p contains quebracho. After b hours the pelts are done, especially when the tanning barrel alternates for half an hour in the opposite Sense runs. This is followed by a short chrome plating, greasing and finishing as usual. -
Claims (1)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR575398D FR575398A (en) | 1923-12-06 | 1923-12-06 | Fast tanning process |
| GB22169/24A GB231084A (en) | 1923-12-06 | 1923-12-18 | A process for quick-tanning fish skins |
| DEE31220A DE541236C (en) | 1923-12-06 | 1923-12-18 | Process for preparing fish skins for quick tanning |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR575398T | 1923-12-06 | ||
| GB22169/24A GB231084A (en) | 1923-12-06 | 1923-12-18 | A process for quick-tanning fish skins |
| DEE31220A DE541236C (en) | 1923-12-06 | 1923-12-18 | Process for preparing fish skins for quick tanning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE541236C true DE541236C (en) | 1932-01-06 |
Family
ID=89428877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEE31220A Expired DE541236C (en) | 1923-12-06 | 1923-12-18 | Process for preparing fish skins for quick tanning |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE541236C (en) |
| FR (1) | FR575398A (en) |
| GB (1) | GB231084A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3634278A1 (en) * | 1986-10-08 | 1988-04-21 | Hoechst Ag | METHOD FOR CHROME SAVING |
-
1923
- 1923-12-06 FR FR575398D patent/FR575398A/en not_active Expired
- 1923-12-18 DE DEE31220A patent/DE541236C/en not_active Expired
- 1923-12-18 GB GB22169/24A patent/GB231084A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB231084A (en) | 1925-03-18 |
| FR575398A (en) | 1924-07-29 |
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