GB156079A - New or improved process for the depilation, neutralization and bating of hides and skins - Google Patents
New or improved process for the depilation, neutralization and bating of hides and skinsInfo
- Publication number
- GB156079A GB156079A GB28904/20A GB2890420A GB156079A GB 156079 A GB156079 A GB 156079A GB 28904/20 A GB28904/20 A GB 28904/20A GB 2890420 A GB2890420 A GB 2890420A GB 156079 A GB156079 A GB 156079A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sodium
- hides
- depilation
- sulphate
- preliminary
- 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
- 230000035617 depilation Effects 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 3
- 238000006386 neutralization reaction Methods 0.000 title abstract 2
- PMZURENOXWZQFD-UHFFFAOYSA-L sodium sulphate Substances [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 6
- 102000004190 Enzymes Human genes 0.000 abstract 4
- 108090000790 Enzymes Proteins 0.000 abstract 4
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract 4
- 235000011152 sodium sulphate Nutrition 0.000 abstract 4
- 239000012670 alkaline solution Substances 0.000 abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 2
- 239000003513 alkali Substances 0.000 abstract 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 abstract 2
- 229910052921 ammonium sulfate Inorganic materials 0.000 abstract 2
- 239000001166 ammonium sulphate Substances 0.000 abstract 2
- 235000011130 ammonium sulphate Nutrition 0.000 abstract 2
- 239000003518 caustics Substances 0.000 abstract 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 abstract 2
- 150000003839 salts Chemical class 0.000 abstract 2
- 235000011121 sodium hydroxide Nutrition 0.000 abstract 2
- PQMFVUNERGGBPG-UHFFFAOYSA-N (6-bromopyridin-2-yl)hydrazine Chemical compound NNC1=CC=CC(Br)=N1 PQMFVUNERGGBPG-UHFFFAOYSA-N 0.000 abstract 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 abstract 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 abstract 1
- 150000001447 alkali salts Chemical class 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 235000019270 ammonium chloride Nutrition 0.000 abstract 1
- 229910052788 barium Inorganic materials 0.000 abstract 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 abstract 1
- 239000004327 boric acid Substances 0.000 abstract 1
- -1 boric or lactic acid Chemical class 0.000 abstract 1
- 239000011575 calcium Substances 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 150000001805 chlorine compounds Chemical class 0.000 abstract 1
- 239000012634 fragment Substances 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- 239000004310 lactic acid Substances 0.000 abstract 1
- 235000014655 lactic acid Nutrition 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000010422 painting Methods 0.000 abstract 1
- 229940062190 pancreas extract Drugs 0.000 abstract 1
- 239000011591 potassium Substances 0.000 abstract 1
- 229910052700 potassium Inorganic materials 0.000 abstract 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 abstract 1
- 229910052939 potassium sulfate Inorganic materials 0.000 abstract 1
- 239000001120 potassium sulphate Substances 0.000 abstract 1
- 235000011151 potassium sulphates Nutrition 0.000 abstract 1
- 238000002791 soaking Methods 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 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
- C14C1/06—Facilitating unhairing, e.g. by painting, by liming
- C14C1/065—Enzymatic unhairing
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Cosmetics (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
156,079. R÷hm, O. Dec. 31, 1919, [Convention date]. Treatment preliminary to tanning.-Relates to processes for the depilation, neutralization and bating or hides and skins by means of pancreatic enzymes after a short preliminary treatment with an alkaline solution .and consists in adding a salt of an alkali or alkaline earth to the alkaline solution in order to obviate stiffness and overplumping. The alkaline solution may contain caustic alkalis, alkaline earths or ammonia, the salts of alkalis to be added thereto comprising sodium or potassium sulphate or chlorides of sodium, potassium, calcium, barium, &c. After the preliminary treatment, in order to neutralize the caustic alkali, sodium bi-carbonate or other suitable agent such as ammonium sulphate or chloride or weak acids such as boric or lactic acid, may be added together with the pancreatic enzymes. The preliminary treatment with, for example, caustic soda and sodium sulphate may be intensified to effect depilation before treatment with enzymes. The mixture of caustic soda and sodium sulphate may be used as a bath or by painting it on to the flesh side. Preferably the alkalis and alkali salts are mixed together in the solid state, being fused and reduced to the form of small tablets or fragments. The enzyme liquor remaining after depilation or bating may be used again for the preliminary soaking of hides, &c. The Specification as open to inspection under Sect. 91 (3) (a), comprises also a process in which hides are bated in a liquor comprising 100 litres of water; 100 grams of pancreas extract; 150 grams of ammonium sulphate; and 250 grams of sodium sulphate. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DER47862A DE386017C (en) | 1919-06-28 | 1919-06-28 | Process for depilating, neutralizing and pickling hides and pelts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB156079A true GB156079A (en) | 1922-01-12 |
Family
ID=89507640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28904/20A Expired GB156079A (en) | 1919-06-28 | 1920-10-12 | New or improved process for the depilation, neutralization and bating of hides and skins |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH92142A (en) |
| DE (1) | DE386017C (en) |
| FR (1) | FR527286A (en) |
| GB (1) | GB156079A (en) |
-
1919
- 1919-06-28 DE DER47862A patent/DE386017C/en not_active Expired
-
1920
- 1920-10-12 GB GB28904/20A patent/GB156079A/en not_active Expired
- 1920-10-29 CH CH92142D patent/CH92142A/en unknown
- 1920-11-16 FR FR527286A patent/FR527286A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE386017C (en) | 1923-12-01 |
| CH92142A (en) | 1921-12-16 |
| FR527286A (en) | 1921-10-22 |
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