BE416251A - PROCESS FOR TANNING GREEN LEATHERS AND SKINS - Google Patents
PROCESS FOR TANNING GREEN LEATHERS AND SKINSInfo
- Publication number
- BE416251A BE416251A BE416251DA BE416251A BE 416251 A BE416251 A BE 416251A BE 416251D A BE416251D A BE 416251DA BE 416251 A BE416251 A BE 416251A
- Authority
- BE
- Belgium
- Prior art keywords
- skins
- tanning
- parts
- leathers
- green
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 150000002506 iron compounds Chemical class 0.000 claims description 3
- 239000000243 solution Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 7
- HQWKKEIVHQXCPI-UHFFFAOYSA-L disodium;phthalate Chemical compound [Na+].[Na+].[O-]C(=O)C1=CC=CC=C1C([O-])=O HQWKKEIVHQXCPI-UHFFFAOYSA-L 0.000 description 5
- 239000010985 leather Substances 0.000 description 5
- 244000309466 calf Species 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- 229910021653 sulphate ion Inorganic materials 0.000 description 3
- 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 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- UJMDYLWCYJJYMO-UHFFFAOYSA-N benzene-1,2,3-tricarboxylic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1C(O)=O UJMDYLWCYJJYMO-UHFFFAOYSA-N 0.000 description 2
- 239000007859 condensation product Substances 0.000 description 2
- 235000021323 fish oil Nutrition 0.000 description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 2
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- YDSWCNNOKPMOTP-UHFFFAOYSA-N mellitic acid Chemical compound OC(=O)C1=C(C(O)=O)C(C(O)=O)=C(C(O)=O)C(C(O)=O)=C1C(O)=O YDSWCNNOKPMOTP-UHFFFAOYSA-N 0.000 description 2
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 235000002639 sodium chloride Nutrition 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 1
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 159000000014 iron salts Chemical class 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 235000013311 vegetables 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S530/00—Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof
- Y10S530/827—Proteins from mammals or birds
- Y10S530/842—Skin; hair; nails; sebaceous glands; cerumen
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S530/00—Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof
- Y10S530/859—Waste, waste material, refuse or sludge, e.g. effluents, fecal matter
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
<Desc/Clms Page number 1>
Procédé pour tanner les cuirs verts et les peaux.
On a trouvé qu'on peut tanner d'une manière excellente les cuirs verts et les peaux en employant des agents tannants contenant du fer soluble, et plus particulièrement des composés ferriques, et des substances carboxyliques dont la molécule renferme au moins une double liaison, c'est-àdire ces acides eux-mêmes ou leurs sels. Les dits agents tannants peuvent être constitués par des mélanges ou des produits de réaction de composés du fer et des dites substances carboxyliques. Comme substances carboxyliques convenables on peut citer par exemple l'acide maléique, l'acide phtalique, l'acide mellitique et l'acide hémi-mellitique. Des acides
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dicarboxyliques particulièrement convenables sont ceux dans la molécule desquels les deux groupes carboxyliques sont fixés aux deux atomes de carbone unis par une double liaison.
Il est avantageux d'employer des acides ne donnant pas de colora- tions intenses avec les sels du fer. Les composés du fer et les dites substances carboxyliques peuvent être tout d'abord mis en présence les uns des autres et l'on peut employer pour le tannage les produits ainsi obtenus, ou bien on peut faire agir successivement les divers constituants sur les pro- duits à tanner. L'opération de tannage peut également être combinée avec d'autres procédés de tannage quelconques, comme par exemple ceux où il fait usage d'agents tannants végétaux, synthétiques ou miné:baux.
Les cuirs et peaux tannés au moyen des dits agents tannants se distinguent par une excellente plénitude. Ils se conservent bien au stockage et ne sont en général que faiblement colorés.
Les exemples ci-après mettront mieux en lumière la nature de la présente invention sans que celle-ci y soit pour cela limitée. Les parties sont en poids.
Exemple 1 :- Dissoudre 1480 parties d'anhydride phta- lique dans 800 parties de soude caustique, diluer le tout à 12.000 parties et ajouter lentement et tout en agitant une solution de 510 parties de chlorure ferrique anhydre dans 5000 parties d'eau.Introduire 5000 parties de peaux de veau pelanées dans cette solution et les y fouler jusqu'à ce qu' elles soient tannées complètement et à fond. Rincer soigneu- sement le cuir, le graisser au moyen d'une émulsion d'huile de poissons et le finir en cuir chromé. On obtient un cuir possédant une magnifique plénitude, un grain lisse et une couleur plutôt pâle.
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<Desc/Clms Page number 3>
Les peaux de veau pelanées peuvent aussi, avant d'être soumises à ce traitement, être préalablement traitées au moyen d'une solution renfermant 1 partie de chlorure ferrique et 10 parties de sel ordinaire pour 100 parties d'eau.
Exemple 3:- Passer au tambour des peaux de veau pelanées et picklées en employant une solution de 15% d'acide maléique, 18% de nitrate ferrique et 7,5 % de carbonate de sodium cal- ciné dans 150% d'eau, ces proportions se rapportant au poids de peaux débourrées. Continuer le foulage jusqu'à ce que la tranche soit complètement colorée, puis ajouter en deux jours par petites quantités une solution de 2,2% de carbonate de sodium anhydre.
Laisser le cuir sur le tréteau d'un jour à l'autre et le traiter ensuite pendant 4 heures au moyen de 3% du sel sodique du produit de condensation issu de l'acide naphtalène-sul fonique et de L'aldéhyde formique, préparé suivant le brevet belge N 258.967 du 1er. Août 1913, dans 100% d'eau,, puis le rincer, jusqu'à ce que la section présente une valeur de pH de 5. Graisser ensuite le cuir au moyen d'une huile de pois- sons sulfonée et le finir de la manière habituelle.
Exemple 3 :- Fouler au tambour 2600 parties de peaux pelanées avec une solution de 200 parties de sulfate ferrique anhydre et de 15 parties de phtalate de sodium dans 2000 par- ties d'eau. Introduire goutte à goutte dans le bain, durant environ 20 heures, une solution de 250 parties de phtalate disodique dans environ 600 parties d'eau. Rincer ensuite les peaux, les traiter complémentairement au moyen de 78 parties du sel sodique du produit de condensation issu de l'acide naphtalène-sulfonique et de l'aldéhyde formique dans 2000 parties d'eau, puis le graisser et le finir de la manière habituelle.
<Desc/Clms Page number 4>
Exemple 4 :- Fouler au tambour des peaux de veau pelanées et picklées avec une solution de 9% de sulfate ferrique et de 1% de phtalate de sodium dans 100% d'eau (ces propor- tions se rapportant au poids des peaux) jusqu'à ce que la section de la peau soit uniformément colorée partout. Ajouter au bain durant environ 24 heures 4% de phalate de sodium sous forme d'une solution aqueuse à 3%. Ajouter ensuite lentement 2,2% de carbonate de sodium calciné sous forme d'une solution aqueuse à 5%. Poursuivre le traitement des peaux comme il est dit à l'exemple 2.
Exemple 5:- Fouler au tambour des peaux de veau pelanées et picklées au moyen d'une solution de 9% de sulfate ferrique et de 1% d'un mélange composé de 69 parties de phta- late de sodium et de 31 parties de carbonate de sodium calciné dans 100% d'eau (ces proportions se rapportant au poids des peaux) jusqu'à ce que la tranche soit colorée à fond. Ajouter ensuite au bain à nouveau 6,2% du mélange de phtalate de so- dium et de carbonate de sodium sous forme d'une solution aqueuse à 3%. Poursuivre le traitement des peaux comme il est dit à l'exemple 2.
<Desc / Clms Page number 1>
Process for tanning green leathers and skins.
It has been found that green leathers and skins can be tanned excellently by employing tanning agents containing soluble iron, and more particularly ferric compounds, and carboxylic substances in which the molecule contains at least one double bond, that is, these acids themselves or their salts. Said tanning agents may consist of mixtures or reaction products of iron compounds and said carboxylic substances. As suitable carboxylic substances there may be mentioned, for example, maleic acid, phthalic acid, mellitic acid and hemi-mellitic acid. Acids
<Desc / Clms Page number 2>
Particularly suitable dicarboxylics are those in the molecule of which the two carboxylic groups are attached to the two carbon atoms joined by a double bond.
It is advantageous to use acids which do not give an intense color with the iron salts. The iron compounds and the said carboxylic substances can first of all be brought into contact with each other and the products thus obtained can be used for tanning, or else the various constituents can be made to act successively on the products. tanning products. The tanning operation can also be combined with any other tanning process, such as for example those where it makes use of vegetable, synthetic or mineral tanning agents: leases.
The leathers and skins tanned by means of so-called tanning agents are distinguished by their excellent fullness. They keep well in storage and are generally only weakly colored.
The examples below will better illustrate the nature of the present invention without this being limited thereto. Parts are by weight.
Example 1: Dissolve 1480 parts of phthalic anhydride in 800 parts of caustic soda, dilute the whole to 12,000 parts and add slowly and while stirring a solution of 510 parts of anhydrous ferric chloride in 5000 parts of water. 5000 parts of peeled calfskin in this solution and crush them until they are completely and thoroughly tanned. Rinse the leather thoroughly, grease it with a fish oil emulsion and finish it in chrome leather. The result is a leather with a magnificent fullness, a smooth grain and a rather pale color.
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<Desc / Clms Page number 3>
Peeled calf skins can also, before being subjected to this treatment, be pretreated with a solution containing 1 part of ferric chloride and 10 parts of common salt per 100 parts of water.
Example 3: Druming peeled and pickled calf skins using a solution of 15% maleic acid, 18% ferric nitrate and 7.5% sodium carbonate calcined in 150% water, these proportions relating to the weight of the broken skins. Continue crushing until the slice is completely colored, then add in two days in small quantities a solution of 2.2% anhydrous sodium carbonate.
Leave the leather on the trestle overnight and then treat it for 4 hours with 3% sodium salt of the condensation product from naphthalene sulphonic acid and formaldehyde, prepared according to Belgian patent N 258.967 of the 1st. August 1913, in 100% water, then rinse it, until the section has a pH value of 5. Then grease the leather with sulphonated fish oil and finish it off. usual way.
Example 3: Druming 2600 parts of peeled skins with a solution of 200 parts of anhydrous ferric sulphate and 15 parts of sodium phthalate in 2000 parts of water. Drop into the bath, over approximately 20 hours, a solution of 250 parts of disodium phthalate in approximately 600 parts of water. Then rinse the skins, treat them additionally with 78 parts of the sodium salt of the condensation product from naphthalenesulphonic acid and formic aldehyde in 2000 parts of water, then grease and finish it as usual.
<Desc / Clms Page number 4>
Example 4: - Drum-milling of peeled and pickled calf skins with a solution of 9% ferric sulphate and 1% sodium phthalate in 100% water (these proportions relating to the weight of the hides) to 'that the skin section is uniformly colored throughout. Add to the bath for about 24 hours 4% sodium phalate in the form of a 3% aqueous solution. Then slowly add 2.2% of calcined sodium carbonate as a 5% aqueous solution. Continue the treatment of the skins as described in Example 2.
Example 5: Drum-drum pickled and peeled calf skins using a solution of 9% ferric sulphate and 1% of a mixture composed of 69 parts of sodium phthalate and 31 parts of carbonate of sodium calcined in 100% water (these proportions referring to the weight of the skins) until the slice is thoroughly colored. Then add to the bath again 6.2% of the mixture of sodium phthalate and sodium carbonate in the form of a 3% aqueous solution. Continue the treatment of the skins as described in Example 2.
Claims (1)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE416251X | 1935-06-26 | ||
| DE2141276X | 1935-06-26 | ||
| DEI52640D DE669566C (en) | 1935-06-26 | 1935-06-27 | Process for the production of iron-containing tanning agents |
| DEI52641D DE670537C (en) | 1935-06-26 | 1935-06-27 | Process for the production of iron-containing tanning agents |
| GB23825/35A GB462026A (en) | 1935-06-26 | 1935-08-26 | Improvements in the manufacture and production of tanning agents containing iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE416251A true BE416251A (en) | 1936-07-31 |
Family
ID=60571006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE416251D BE416251A (en) | 1935-06-26 | 1936-06-25 | PROCESS FOR TANNING GREEN LEATHERS AND SKINS |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2141276A (en) |
| BE (1) | BE416251A (en) |
| DE (2) | DE669566C (en) |
| GB (1) | GB462026A (en) |
-
1935
- 1935-06-27 DE DEI52640D patent/DE669566C/en not_active Expired
- 1935-06-27 DE DEI52641D patent/DE670537C/en not_active Expired
- 1935-08-26 GB GB23825/35A patent/GB462026A/en not_active Expired
-
1936
- 1936-06-18 US US85908A patent/US2141276A/en not_active Expired - Lifetime
- 1936-06-25 BE BE416251D patent/BE416251A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US2141276A (en) | 1938-12-27 |
| GB462026A (en) | 1937-02-26 |
| DE670537C (en) | 1939-01-20 |
| DE669566C (en) | 1938-12-29 |
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