CS273449B1 - Method of leathers and furs degreasing - Google Patents
Method of leathers and furs degreasing Download PDFInfo
- Publication number
- CS273449B1 CS273449B1 CS52389A CS52389A CS273449B1 CS 273449 B1 CS273449 B1 CS 273449B1 CS 52389 A CS52389 A CS 52389A CS 52389 A CS52389 A CS 52389A CS 273449 B1 CS273449 B1 CS 273449B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- weight
- ethoxylated
- defatting
- nonylphenol
- fur
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 7
- 238000005238 degreasing Methods 0.000 title abstract 2
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical class CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004094 surface-active agent Substances 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 7
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 229920000847 nonoxynol Polymers 0.000 claims abstract description 6
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 claims abstract description 6
- 150000002191 fatty alcohols Chemical class 0.000 claims abstract description 5
- 241001494479 Pecora Species 0.000 claims description 6
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 claims description 6
- 229940048086 sodium pyrophosphate Drugs 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 235000019818 tetrasodium diphosphate Nutrition 0.000 claims description 5
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 5
- 241000283707 Capra Species 0.000 claims description 4
- 239000002960 lipid emulsion Substances 0.000 claims description 3
- 239000010985 leather Substances 0.000 abstract description 3
- 238000005554 pickling Methods 0.000 abstract description 2
- -1 ethoxyl groups Chemical group 0.000 abstract 2
- 239000000839 emulsion Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 241000282887 Suidae Species 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000012632 extractable Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920000151 polyglycol Polymers 0.000 description 2
- 239000010695 polyglycol Substances 0.000 description 2
- 235000015277 pork Nutrition 0.000 description 2
- YKYIFUROKBDHCY-ONEGZZNKSA-N (e)-4-ethoxy-1,1,1-trifluorobut-3-en-2-one Chemical group CCO\C=C\C(=O)C(F)(F)F YKYIFUROKBDHCY-ONEGZZNKSA-N 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Detergent Compositions (AREA)
Abstract
Description
(57) Riešenia spadajúca do^odboru kožiarskaho priemyslu sa týká sposobu odtučňovania koži a kožušln,' zv^ášt ovčin a kozin v piklovanom stave posobením povrchovoaktivnych látok. Podstata riešenia spočívá v tom, že ako povrchovoaktívna látka slúži zmes etoxylovaných nonylfenolov s obsahom 12 až 15 etoxylových skupin na mol nonylfenolu a etoxyklovaných mastných alkoholov a 3 až 5 etoxylovými skupinami v pomere 1:10 až 1:20 v množstve 0,1 až 5 % hmot. vztlahnuté na hmotnoef suroviny, vzniknutá emulzia prirodného tuku sa v naaledujúcom kroku vypiera roztokom a obsahom 0,01 až 10 % hmot. difosforečnanu sodného.(57) The solution of the leather industry relates to the method of defatting skins and fur, especially sheep and goats in the polluted state by impregnating surfactants. The principle of the solution is that a surfactant is a mixture of ethoxylated nonylphenols containing 12 to 15 ethoxy groups per mole of nonylphenol and ethoxylated fatty alcohols and 3 to 5 ethoxy groups in a ratio of 1:10 to 1:20 in an amount of 0.1 to 5 % wt. based on the weight of the raw material, the resulting natural fat emulsion is washed in a next step with a solution containing from 0.01 to 10% by weight. sodium pyrophosphate.
CS 273449 BlCS 273449 Bl
CS 273 449 BlCS 273 449 Bl
Vynález ea týká spSsobu odtučňovania koži a kožušín, najma ovčin a kozin v piklovanom stave.The present invention relates to a method of defatting hides and skins, in particular sheep and goats, in the polished state.
V koželužnaj a kožušníckej technologii sa často spracovávajú kože a kožusiny v piklovanom stave, ktoré sa valmi tažko otučňujú. Pre odtučňovanie v kyslom prostředí sa volia rožne odtučňovacie prostriedky, ako napr. acylpolyglykolathery, alkylpolyglykoletharsulfáty at3. Uvedené typy povrchovo aktívnych látok sa musia používat v kyslom prostředí s vysokou iontovou silou, čo je spojené s potiažami pri odstraňovaní prírodných tukov, to znamená že pri bežne známých technológiach odtučňovania zostáva napr. až 5 % extrahovatelných látok v materiále, čo vyvolává potiaže v nadvazujúcich technologických operáciach. Obdobná situácia Je i pri odtučňovaní kozin a bravčovín. Či už v pilovaném stave alebo v roznych fázach rozpracovania.In tannery and fur technology, hides and skins are often processed in a spiked state, which are difficult to rotate by the walls. For defatting in an acidic environment, various defatting agents, such as e.g. acyl polyglycol ethers, alkyl polyglycol ethanesulfates and the like. Said types of surfactants have to be used in an acidic environment with high ionic strength, which is associated with difficulties in removing natural fats, i.e., in the case of conventional defatting technologies, e.g. up to 5% of extractables in the material, causing difficulties in downstream technological operations. A similar situation is also in defatting goats and pork. Whether in a sawmill or in various stages of processing.
Uvedené nedostatky odstraňuje sposob odtučňovania padla vynálezu, ktorého podstata spočiva v tom; že sa na surovinu pfisobi povr.chovoaktivnou látkou tvořenou zmesou etoxylovaných nonylfenolov s obsahom 12 až 15 etoxylových skupin na mol nonylfenolu a stoxylovými skupinami v pomere 1:10 až 1:20 v množstve 0,1 až 5 % hmot. vztiahnuté na hmotnost suroviny, vzniknutá emulzia prirodného tuku sa v nasledujúcom kroku vypiera roztokom s.obsahom 0,01 až 10 % hmot. difosforečnanu sodného.These deficiencies are eliminated by the defatting process of the invention, which is based on the principle of defatting; % by weight of said feedstock comprising a mixture of ethoxylated nonylphenols containing 12 to 15 ethoxy groups per mole of nonylphenol and stoxyl groups in a ratio of 1:10 to 1:20 in an amount of 0.1 to 5% by weight; based on the weight of the raw material, the resulting natural fat emulsion is washed in a next step with a solution containing 0.01-10% by weight. sodium pyrophosphate.
Sposob odtučňovania koži a kožušín podlá vynálezu je v porovnaní s doteraz používanou technologíou niekolkokrát účinsjší; napr. u ovčin až 10-krát, pričom účinnost odtučňovania s vypočítá zo stanovenia množstva extrahovatelných látok v koži před a po odtučňovaní. Přiklad 1The method of defatting hides and skins according to the invention is several times more effective than the technology used hitherto; e.g. in sheep, up to 10 times, the defatting efficiency s calculated from the determination of the amount of extractable substances in the skin before and after defatting. Example 1
Piklované ovčiny sa opracujú v koželužnej nádobě s I % hmot. povrchovoaktivnej látky, ktorú představuje zmes etoxylovaných nonylfenolov s obsahom 15 etoxylových skupin na mol nonylfenolu a etoxylovaných mastných alkoholov so 4 etoxylovými skupinami v pomere 1:15,The plated sheep are treated in a tanner container with 1% by weight. a surfactant consisting of a mixture of ethoxylated nonylphenols containing 15 ethoxy groups per mole of nonylphenol and ethoxylated fatty alcohols with 4 ethoxy groups in a 1:15 ratio,
Po 30 minútach pohybu sa přidá 250 % obj. vody teplej 30 °C s obsahom 1 % hmot. difosforečnanu sodného na hmotnost piklovaných ovčin. Po 120 minútach pohybu sa kvapalina zleje a surovina preperie vodou.After 30 minutes of movement, 250 vol. water at 30 ° C with a content of 1% by weight sodium pyrophosphate to the weight of pickled sheep. After 120 minutes of movement, the liquid is decanted and the raw material is washed with water.
Obsah zbytkového tuku v koži nepřesahoval 2 % hmot.The residual fat content of the skin did not exceed 2% by weight.
Přiklad 2Example 2
Bravčovice sa v priebehu mořenia opracujú povrchovoaktívnou látkou v množstve 1 % hmot. na hmotnost holiny, pričom povrchovoaktívnu látku představuje zmes etoxylovaných nonylfenolov s obsahom 12 etoxylových skupin na mol nonylfenolu a etoxylovaných mastných alkoholov so 4 etoxylovanými skupinami v pomere 1:20. Po 2 hodinách pohybu sa přidá 250 % obj. vody teplej 35 °C s obsahom 5 % hmot. difosforečnanu sodného na hmotnost piklovaných bravčovíc. Po 30 minútach pohybu sa kvapalina zleje a surovina preperie vodou.Pigs are treated with a surfactant in an amount of 1% by weight during pickling. The surfactant is a mixture of ethoxylated nonylphenols containing 12 ethoxy groups per mole of nonylphenol and ethoxylated fatty alcohols with 4 ethoxylated groups in a ratio of 1:20. After 2 hours of movement, 250 vol. water at 35 ° C with a content of 5% by weight sodium pyrophosphate to the weight of the pork pigs. After 30 minutes of movement, the liquid is decanted and the raw material is washed with water.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS52389A CS273449B1 (en) | 1989-01-26 | 1989-01-26 | Method of leathers and furs degreasing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS52389A CS273449B1 (en) | 1989-01-26 | 1989-01-26 | Method of leathers and furs degreasing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS52389A1 CS52389A1 (en) | 1990-07-12 |
| CS273449B1 true CS273449B1 (en) | 1991-03-12 |
Family
ID=5337463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS52389A CS273449B1 (en) | 1989-01-26 | 1989-01-26 | Method of leathers and furs degreasing |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS273449B1 (en) |
-
1989
- 1989-01-26 CS CS52389A patent/CS273449B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS52389A1 (en) | 1990-07-12 |
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