EP0554216B1 - Verfahren zum Pickeln und Vorgerben von Hautblössen - Google Patents
Verfahren zum Pickeln und Vorgerben von Hautblössen Download PDFInfo
- Publication number
- EP0554216B1 EP0554216B1 EP93810030A EP93810030A EP0554216B1 EP 0554216 B1 EP0554216 B1 EP 0554216B1 EP 93810030 A EP93810030 A EP 93810030A EP 93810030 A EP93810030 A EP 93810030A EP 0554216 B1 EP0554216 B1 EP 0554216B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- process according
- weight
- component
- phenol
- pickling
- 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.)
- Revoked
Links
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000005554 pickling Methods 0.000 title claims abstract description 15
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000000203 mixture Substances 0.000 claims abstract description 26
- 229920002245 Dextrose equivalent Polymers 0.000 claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- 150000003839 salts Chemical class 0.000 claims abstract description 8
- ZNZYKNKBJPZETN-WELNAUFTSA-N Dialdehyde 11678 Chemical compound N1C2=CC=CC=C2C2=C1[C@H](C[C@H](/C(=C/O)C(=O)OC)[C@@H](C=C)C=O)NCC2 ZNZYKNKBJPZETN-WELNAUFTSA-N 0.000 claims abstract description 6
- 150000001720 carbohydrates Chemical class 0.000 claims abstract description 6
- 230000002829 reductive effect Effects 0.000 claims abstract description 5
- 125000001931 aliphatic group Chemical group 0.000 claims abstract description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 3
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 18
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 claims description 13
- 239000007795 chemical reaction product Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 150000002772 monosaccharides Chemical class 0.000 claims description 10
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 7
- 150000002016 disaccharides Chemical class 0.000 claims description 7
- 235000019253 formic acid Nutrition 0.000 claims description 7
- 238000009472 formulation Methods 0.000 claims description 6
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 5
- 239000008103 glucose Substances 0.000 claims description 4
- 239000013011 aqueous formulation Substances 0.000 claims 1
- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000007935 neutral effect Effects 0.000 abstract description 5
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 206010000496 acne Diseases 0.000 description 13
- 239000010985 leather Substances 0.000 description 12
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 5
- 229960001031 glucose Drugs 0.000 description 5
- 235000021110 pickles Nutrition 0.000 description 5
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 235000010755 mineral Nutrition 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- UMHJEEQLYBKSAN-UHFFFAOYSA-N Adipaldehyde Chemical compound O=CCCCCC=O UMHJEEQLYBKSAN-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- PCSMJKASWLYICJ-UHFFFAOYSA-N Succinic aldehyde Chemical compound O=CCCC=O PCSMJKASWLYICJ-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000001323 aldoses Chemical class 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 229940015043 glyoxal Drugs 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 description 2
- 150000003460 sulfonic acids Chemical class 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- WHOZNOZYMBRCBL-OUKQBFOZSA-N (2E)-2-Tetradecenal Chemical compound CCCCCCCCCCC\C=C\C=O WHOZNOZYMBRCBL-OUKQBFOZSA-N 0.000 description 1
- OWEGMIWEEQEYGQ-UHFFFAOYSA-N 100676-05-9 Natural products OC1C(O)C(O)C(CO)OC1OCC1C(O)C(O)C(O)C(OC2C(OC(O)C(O)C2O)CO)O1 OWEGMIWEEQEYGQ-UHFFFAOYSA-N 0.000 description 1
- GUBGYTABKSRVRQ-XLOQQCSPSA-N Alpha-Lactose Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@H](O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-XLOQQCSPSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical class [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 102000008186 Collagen Human genes 0.000 description 1
- 108010035532 Collagen Proteins 0.000 description 1
- WQZGKKKJIJFFOK-QTVWNMPRSA-N D-mannopyranose Chemical compound OC[C@H]1OC(O)[C@@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-QTVWNMPRSA-N 0.000 description 1
- HMFHBZSHGGEWLO-SOOFDHNKSA-N D-ribofuranose Chemical compound OC[C@H]1OC(O)[C@H](O)[C@@H]1O HMFHBZSHGGEWLO-SOOFDHNKSA-N 0.000 description 1
- 229930091371 Fructose Natural products 0.000 description 1
- 239000005715 Fructose Substances 0.000 description 1
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 description 1
- 208000007976 Ketosis Diseases 0.000 description 1
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 1
- WSMYVTOQOOLQHP-UHFFFAOYSA-N Malondialdehyde Chemical compound O=CCC=O WSMYVTOQOOLQHP-UHFFFAOYSA-N 0.000 description 1
- GUBGYTABKSRVRQ-PICCSMPSSA-N Maltose Natural products O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@@H](CO)OC(O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-PICCSMPSSA-N 0.000 description 1
- PYMYPHUHKUWMLA-LMVFSUKVSA-N Ribose Natural products OC[C@@H](O)[C@@H](O)[C@@H](O)C=O PYMYPHUHKUWMLA-LMVFSUKVSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- HMFHBZSHGGEWLO-UHFFFAOYSA-N alpha-D-Furanose-Ribose Natural products OCC1OC(O)C(O)C1O HMFHBZSHGGEWLO-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- PYMYPHUHKUWMLA-WDCZJNDASA-N arabinose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)C=O PYMYPHUHKUWMLA-WDCZJNDASA-N 0.000 description 1
- PYMYPHUHKUWMLA-UHFFFAOYSA-N arabinose Natural products OCC(O)C(O)C(O)C=O PYMYPHUHKUWMLA-UHFFFAOYSA-N 0.000 description 1
- SRBFZHDQGSBBOR-UHFFFAOYSA-N beta-D-Pyranose-Lyxose Natural products OC1COC(O)C(O)C1O SRBFZHDQGSBBOR-UHFFFAOYSA-N 0.000 description 1
- GUBGYTABKSRVRQ-QUYVBRFLSA-N beta-maltose Chemical compound OC[C@H]1O[C@H](O[C@H]2[C@H](O)[C@@H](O)[C@H](O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@@H]1O GUBGYTABKSRVRQ-QUYVBRFLSA-N 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 229920001436 collagen Polymers 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 150000001896 cresols Chemical class 0.000 description 1
- 239000008121 dextrose Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 150000002440 hydroxy compounds Chemical class 0.000 description 1
- 150000002584 ketoses Chemical class 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229940118019 malondialdehyde Drugs 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000002482 oligosaccharides Polymers 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229940044654 phenolsulfonic acid Drugs 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 description 1
- 229910000342 sodium bisulfate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 238000006277 sulfonation reaction Methods 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 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
- C14C3/08—Chemical tanning by organic agents
Definitions
- the present invention relates to a method for pickling and pre-tanning skin bumps and the leather material produced by the present method.
- a decalcified and pickled pale must first be subjected to a pimple treatment.
- This treatment is used to adjust the bare skin to a pH of approx. 3-4, at which the common tanning agents show their best effect.
- Sulfuric, hydrochloric or formic acid is generally used for the picking process, with the addition of a neutral salt such as e.g. Sodium chloride or sodium sulfate is required.
- neutral salts prevent damaging acidic swelling of the collagen ("acid swelling") caused by the acids.
- the pre-tanning that follows the pimple process is usually carried out in liquors containing heavy metals, e.g. highly basic aluminum or zirconium, and preferably chrome salt baths.
- heavy metals e.g. highly basic aluminum or zirconium, and preferably chrome salt baths.
- DE-A-3 811 267 discloses a process for the production of semi-finished leather products by pretanning, in which a mixture of a dialdehyde and a specific hydroxy compound is used as the tanning agent formulation.
- DE-A-190 702 describes a process for decalcifying skins, in which the skins are soaked in a bath of sulfur and a carbohydrate which is in alcoholic fermentation.
- DE-A-85 933 relates to a method for decalcifying (pickling) and swelling everyone Types of skins and skins by treating them with sulfonic acids of phenol and cresols in aqueous solution.
- a combined pimple-pretanning process has now been found, which surprisingly makes it possible to carry out the pimple and tanning process in a one-bath process, in which mineral and neutral salts can be dispensed with and with which good pimple and tanning results are achieved.
- the preferred sulfonating agent used to prepare component (a) is SO 3 or, above all, oleum.
- Oleum is a solution of SO 3 in concentrated sulfuric acid.
- reaction products of phenol and oleum are particularly suitable, the molar ratio (phenol) :( SO 3 ) being above all (1) :( 1.4-1.8)
- the reaction product of phenol and oleum is known per se.
- GB-A-0,683,084 the production of reaction products from phenol and oleum, which however, e.g. Formaldehyde and urea or thiourea are further implemented and used as tanning agents.
- the reaction product according to the invention is a mixture, the main constituent of which is sulfonated dihydroxydiphenyl sulfones.
- Component (a) is contained in the pickle liquor A in an amount of 1 to 10, preferably 3 to 5% by weight, based on the weight of the pomace.
- a C 1 -C 3 carboxylic acid is added to the pickle liquor A as an optional component (a1), which is present in the pickle liquor in an amount of 0 to 1, preferably 0.1 to 1% by weight.
- carboxylic acids are formic acid, acetic acid or propionic acid.
- Formic acid is preferably used for the picking process
- aldoses or ketoses with a dextrose equivalent of 10 to 100 come into consideration as component (b). They are primarily mono- and disaccharides, but also oligo- and polysaccharides.
- the dextrose equivalent is the amount of saccharide calculated in grams, which corresponds to 100 grams of dextrose in terms of reducing power.
- Mono- or disaccharides are preferably used in the process according to the invention.
- Suitable monosaccharides are, for example, glucose, fructose, mannose, arabinose and ribose.
- Sucrose, maltose or lactose may be mentioned as representatives of the disaccharides.
- Monosaccharides are preferred for the process according to the invention.
- the aldoses are to be mentioned here, the glucose being of very special interest because of its easy accessibility and availability in technical quantities. preferably 40 to 80.
- dialdehydes or mixtures thereof which have 2 to 8 carbons and structurally saturated aliphatic C-C linkages can generally be used as dialdehydes corresponding to component (c).
- dialdehydes corresponding to component (c) examples include glyoxal, malondialdehyde, succindialdehyde, glutaraldehyde, adipindialdehyde, pimeline dialdehyde and dialdehyde derived from suberic acid.
- Preferred representatives are succindialdehyde, glutardialdehyde, adipindialdehyde and glyoxal, of which glutardialdehyde is of primary interest.
- the dialdehydes are usually available as commercially available dialdehydes containing 25 to 50% by weight of water.
- the aqueous composition B is expediently prepared by dissolving component (a) at a temperature between 20 and 60 ° C. and then adding component (b) to the clear solution obtained.
- the aqueous composition thus obtained is liquid and has good storage stability.
- Component (b) is preferably a monosaccharide with a dextrose equivalent of 100 or a disaccharide with a dextrose equivalent of 20-60.
- aqueous compositions B which contain 0.05 to 0.19 mol of component (b) per mole of component (c).
- the decalcified skin is washed with water at room temperature, preferably at a temperature of 20 to 30 ° C for 10 to 20 minutes, and then washed in an aqueous pimple liquor which contains the component ( a) contains, treated for 90 to 180 minutes.
- the pH of the pimple liquor is between 3 and 4.
- the pimple treatment is carried out at room temperature, preferably between 20 and 30, and very particularly between 20 and 25 ° C. If, in a preferred embodiment, the pimple liquor additionally contains the optional component (a1), the procedure is such that the pellets are treated within 15 minutes in the aqueous liquor A which contains half the concentration of component (a) given above.
- component (a) is added to the pickling liquor and component (a1) and further treated as usual. Then you give for the Pre-tanning the pickle liquor with the aqueous composition B.
- the pH is adjusted to a value between 3.5 and 4.5. Treatment is continued for 8 to 14 hours at a temperature between 20 and 30 ° C.
- the entire treatment takes place in the reel or preferably in a rotating barrel.
- the leather treated in this way can be drained very well and therefore also makes it easier to fold to the desired thickness.
- This pre-tanned leather is ideally suited for further processing with all common mineral, vegetable and synthetic tanning agents.
- the pre-tanned leather is particularly suitable for the production of wet white leather. It is characterized by a soft, voluminous handle.
- the present process can also be used to produce finished tanned leather.
- Phenolsulfonic acid is also formed as a by-product.
- a clear, light solution is obtained which has a pH of 3.9-4.2.
- the dry content is 50%.
- a decalcified pale is washed with 200% water at 25 ° C for 15 minutes.
- the pH is approximately 3.0.
- a pH of 3.3 to 3.5 is established. It is treated at the same temperature for 150 minutes.
- Example 2 1.5% of the composition according to Example 2 are added to the pickling liquor.
- the pH is adjusted to 4.0 using powdered sodium hydrogen carbonate or sodium hydrogen sulfate. Treatment is continued for 8 to 16 hours at a temperature of 25 ° C.
- the wet white leather produced in this way is dewatered and folded to the desired thickness.
- This pre-tanned leather is ideally suited for further processing with mineral, vegetable or synthetic tanning agents to produce leather free of heavy metals.
- Example 3 If one works as described in Example 3, but instead of using 1.5% of the composition according to Example 2, 1% glutardialdehyde and 0.6% of a 50% glucose syrup with a dextrose equivalent of 60, a wet white is obtained. Leather with a shrinking temperature of approx. 75 ° C.
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)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Detergent Compositions (AREA)
- Cosmetics (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH23992 | 1992-01-28 | ||
CH239/92 | 1992-01-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0554216A1 EP0554216A1 (de) | 1993-08-04 |
EP0554216B1 true EP0554216B1 (de) | 1996-07-10 |
Family
ID=4182461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93810030A Revoked EP0554216B1 (de) | 1992-01-28 | 1993-01-19 | Verfahren zum Pickeln und Vorgerben von Hautblössen |
Country Status (13)
Country | Link |
---|---|
US (1) | US5360453A (es) |
EP (1) | EP0554216B1 (es) |
JP (1) | JPH089720B2 (es) |
KR (1) | KR960001664B1 (es) |
AT (1) | ATE140268T1 (es) |
AU (1) | AU664225B2 (es) |
BR (1) | BR9300294A (es) |
DE (1) | DE59303163D1 (es) |
DK (1) | DK0554216T3 (es) |
ES (1) | ES2089770T3 (es) |
GR (1) | GR3020511T3 (es) |
MX (1) | MX9300458A (es) |
ZA (1) | ZA93579B (es) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AUPM780494A0 (en) * | 1994-09-01 | 1994-09-22 | Commonwealth Scientific And Industrial Research Organisation | Pickling of hides and skins |
AU703154B2 (en) * | 1994-09-01 | 1999-03-18 | Australian Association Of Leather Industries | Pickling of hides and skins |
EP0717114A3 (de) * | 1994-12-15 | 1996-08-21 | Ciba Geigy Ag | Wässrige Zusammensetzung zum Vorgerben von Hautblössen oder Nachgerben von Leder |
DE19930735A1 (de) * | 1999-07-02 | 2000-01-05 | Jozef Sagala | Mittel und Verfahren zur Herstellung von Lederhalbfabrikaten |
CN105238888A (zh) * | 2015-10-27 | 2016-01-13 | 兴业皮革科技股份有限公司 | 一种基于锆铝钛配合物制备白湿革的生产工艺 |
CN114277202A (zh) * | 2021-11-12 | 2022-04-05 | 宁夏西部皮草有限公司 | 一种高密度羊剪绒生产加工工艺 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE85933C (es) * | ||||
US20502A (en) * | 1858-06-08 | Improvement in methods of tanning | ||
DE190702C (es) * | ||||
US30393A (en) * | 1860-10-16 | Improvement in the treatment of tanned leather | ||
FR18041E (fr) * | 1912-05-11 | 1914-01-15 | Basf Ag | Nouveau procédé de tannage, nouveaux produits tannants et procédé pour leur production |
GB148126A (en) * | 1916-07-20 | 1921-12-09 | Chemische Fabriken Worms Ag | Manufacture of tanning agents and the application thereof |
GB148898A (en) * | 1916-07-20 | 1922-01-10 | Chemische Fabriken Worms Ag | Manufacture of tanning agents and the application thereof |
GB683084A (en) * | 1949-06-20 | 1952-11-19 | Geigy Ag J R | Manufacture of new condensation products, being more especially improved tanning agents and their application |
US2941859A (en) * | 1959-04-08 | 1960-06-21 | Martin L Fein | Tanning with glutaraldehyde |
AR196921A1 (es) * | 1972-04-01 | 1974-02-28 | Basf Ag | Procedimiento para la obtencion de formulaciones curtientes |
DE3001301A1 (de) * | 1980-01-16 | 1981-07-23 | Basf Ag, 6700 Ludwigshafen | Verfahren zum vorbereiten von anionisch gegerbtem oder nachgegerbtem leder |
DE3308087A1 (de) * | 1983-03-08 | 1984-09-27 | Röhm GmbH, 6100 Darmstadt | Verfahren zur chromgerbung von bloessen |
US4830632A (en) * | 1986-05-05 | 1989-05-16 | Ciba-Geigy Corporation | Aqueous composition from a sulfonated phenol, an amine and a tanning salt, process for the production thereof and use thereof as a tanning agent |
FR2610643B1 (fr) * | 1987-02-11 | 1989-05-12 | Centre Tech Cuir Chaussure | Peaux biologiquement stabilisees et non tannees et procede d'obtention de ces peaux |
DE3731810A1 (de) * | 1987-09-22 | 1989-03-30 | Basf Ag | Kondensationsprodukte des bis-(4-hydroxyphenyl)-sulfons als gerbereihilfsmittel, deren herstellung und verwendung sowie ein verfahren zum gerben von leder |
DE3811267C1 (es) * | 1988-04-02 | 1989-05-18 | Schill & Seilacher Gmbh & Co, 7030 Boeblingen, De | |
DE4102545A1 (de) * | 1991-01-29 | 1992-07-30 | Basf Ag | Verfahren zum alleingerben, vorgerben und mitgerben von bloessen und fellbloessen und zum nachgerben von leder und fell |
-
1993
- 1993-01-19 ES ES93810030T patent/ES2089770T3/es not_active Expired - Lifetime
- 1993-01-19 DK DK93810030.2T patent/DK0554216T3/da active
- 1993-01-19 EP EP93810030A patent/EP0554216B1/de not_active Revoked
- 1993-01-19 AT AT93810030T patent/ATE140268T1/de not_active IP Right Cessation
- 1993-01-19 DE DE59303163T patent/DE59303163D1/de not_active Revoked
- 1993-01-22 US US08/007,421 patent/US5360453A/en not_active Expired - Lifetime
- 1993-01-27 BR BR9300294A patent/BR9300294A/pt not_active Application Discontinuation
- 1993-01-27 ZA ZA93579A patent/ZA93579B/xx unknown
- 1993-01-27 KR KR1019930000970A patent/KR960001664B1/ko not_active IP Right Cessation
- 1993-01-27 AU AU32070/93A patent/AU664225B2/en not_active Expired
- 1993-01-28 MX MX9300458A patent/MX9300458A/es not_active IP Right Cessation
- 1993-01-28 JP JP5012086A patent/JPH089720B2/ja not_active Expired - Fee Related
-
1996
- 1996-07-11 GR GR960401599T patent/GR3020511T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
US5360453A (en) | 1994-11-01 |
DE59303163D1 (de) | 1996-08-14 |
GR3020511T3 (en) | 1996-10-31 |
ES2089770T3 (es) | 1996-10-01 |
ZA93579B (en) | 1993-07-28 |
AU3207093A (en) | 1993-07-29 |
ATE140268T1 (de) | 1996-07-15 |
JPH05247498A (ja) | 1993-09-24 |
KR930016547A (ko) | 1993-08-26 |
DK0554216T3 (da) | 1996-08-19 |
MX9300458A (es) | 1993-07-01 |
JPH089720B2 (ja) | 1996-01-31 |
KR960001664B1 (ko) | 1996-02-03 |
AU664225B2 (en) | 1995-11-09 |
BR9300294A (pt) | 1993-08-03 |
EP0554216A1 (de) | 1993-08-04 |
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