DE342096C - - Google Patents
Info
- Publication number
- DE342096C DE342096C DENDAT342096D DE342096DA DE342096C DE 342096 C DE342096 C DE 342096C DE NDAT342096 D DENDAT342096 D DE NDAT342096D DE 342096D A DE342096D A DE 342096DA DE 342096 C DE342096 C DE 342096C
- Authority
- DE
- Germany
- Prior art keywords
- tanning
- iron
- leather
- aldehyde
- same time
- 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.)
- Active
Links
- 239000010985 leather Substances 0.000 claims description 7
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims description 5
- 159000000014 iron salts Chemical class 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 230000003472 neutralizing Effects 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000005591 charge neutralization Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 230000001264 neutralization Effects 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Natural products OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920001021 Polysulfide Polymers 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 159000000011 group IA salts Chemical class 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- -1 iron aldehyde Chemical class 0.000 description 1
- 150000004780 naphthols Chemical class 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 230000037390 scarring Effects 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 235000013311 vegetables Nutrition 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
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
- C14C3/28—Multi-step processes
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 mit Eisensalzen. Nach dem Verfahren des Hauptpatents verwendet man Eisensalze zum Gerben von Blößen derart, daß man vorher oder gleichzeitig auch mit Aldehyd, vorzugsweise Formaldehyd, gerbt.Method of tanning with iron salts. According to the procedure of the main patent one uses iron salts for tanning of pelts in such a way that one before or at the same time also tanned with aldehyde, preferably formaldehyde.
Nach Anspruch 2 wird diese Eisenaldehydgerbung noch kombiniert mit einer Behandlung der Blößen mit neutralisierenden"oder eisenfällenden Stoffen wie Ammoniak, Alkalien, alkalischen Salzen oder mit Phenolen, Naphtholen, organischen Karbonsäuren, vegetabilischen Gerbstoffen oder mit Seifen, Sulfiden, Polysulfiden o. dgl.According to claim 2, this iron aldehyde tanning is still combined with a treatment of the pelts with neutralizing or iron-precipitating substances such as Ammonia, alkalis, alkaline salts or with phenols, naphthols, organic Carboxylic acids, vegetable tanning agents or with soaps, sulfides, polysulfides or the like
Es wurde nun gefunden, daß man die Vorteile der mit einer Aldehydgerbung verbundenen Eisengerbung auch erzielt, wenn man die Aldehydgerbung gleichzeitig mit.der nach der Metallgerbung folgenden Neutralisierung des Leders oder auch nachher stattfinden läßt. Wenn man die Aldehydgerbung gleichzeitig mit der Neutralisierung vornimmt, so entsteht dadurch noch der weitere Vorteil, daß das sonst noch eintretende Narbenziehen vermieden, und ein besonders feiner, zarter und sehr zäher Narben erhalten wird.It has now been found that the advantages of an aldehyde tanning associated iron tanning is also achieved if the aldehyde tanning is carried out at the same time mit.der neutralization of the leather after metal tanning or afterwards can take place. If you do the aldehyde tanning at the same time as the neutralization undertakes, then there arises the further advantage that what is otherwise still occurring Scarring is avoided and a particularly fine, delicate and very tough scar is obtained will.
Zur Ausführung des Verfahrens verwendet. man beispielsweise zwei Prozent Formaldehyd gleichzeitig bei dem Neutralisieren mittels ein bis drei Prozent Soda, je nach der mehr oder weniger starken Gerbung.Used to carry out the procedure. for example, two percent Formaldehyde at the same time as neutralizing with one to three percent soda, depending on the more or less strong tanning.
Ferner haben sich Vorteile ergeben, wenn man mit verschiedenen Metallsalzen gerbt. Man erhält dabei Lederarten mit neuen. Eigenschaften; während z. B. gewöhnliches Eisenleder schon in Wasser von etwa 6o° C zusammenschrumpft und ein mit Eisensalz und Aldehyd gegerbtes Leder bei etwa 9o° C schrumpft, gibt eine gemischte Gerburig mit Chrom- und Eisensalzen ein kochbeständiges Leder, das zugleich voller und schwerer ist als gewöhnliches Chromleder.There have also been advantages in using different metal salts tanned. You get leather types with new ones. Properties; while z. B. ordinary Iron leather already shrinks in water of about 60 ° C and one with iron salt and aldehyde-tanned leather shrinks at about 9o ° C, gives a mixed Gerburig with chrome and iron salts, a boil-resistant leather that is fuller and heavier at the same time is than ordinary chrome leather.
Claims (2)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE342096C true DE342096C (en) |
Family
ID=572033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT342096D Active DE342096C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE342096C (en) |
-
0
- DE DENDAT342096D patent/DE342096C/de active Active
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