摘要:
Verfahren zur Entchromung von Chrom-haltigem, kollagenhaltigem Material, bevorzugt Chrom-haltigem Leder, unter Verwendung eines Extraktionsmittels, dadurch gekennzeichnet, dass das Extraktionsmittel eine Verbindung der Formel I oder eine Mischung aus mehreren Verbindungen der Formel I ist:
K + A - Formel I
wobei K + ein Kation ist, welches ausgewählt ist aus der Gruppe bestehend aus Ammonium-, Iminium-, Phosphonium- und Sulfonium-Ion, und A - ein Anion ist, welches ausgewählt ist aus der Gruppe bestehend aus Phosphat-, Phosphonat-, Phosphinat-, Borat-, Sulfat-, Sulfonat-, Amid-, Imid-, Carben-, Carboxylat- und Carbonat-Ion, bevorzugt ausgewählt aus der Gruppe bestehend aus Phosphat-, Phosphonat-, Phosphinat-, Thiophosphat-, Thiophosphonat- und Thiophosphinat-Ion.
摘要:
The present invention relates to a method for the processing of hides or skins into leather, comprising enzymatic treatment of the hide or skin with carbohydrase in the soaking step. The present invention can achieve optimal fiber opening results in a relatively short period of time and at the same time does not cause loose grain, and meanwhile the pollution or impact on the environment is reduced in a maximum way.
摘要:
Verfahren zum einbadigen Färben und Gerben von Fellen oder Pelzen, wobei man diese gegebenenfalls zuvor gefetteten Materialien bei einer Temperatur von 15 bis 45°C, vorzugsweise 38-40°C und in einer auf einen pH-Wert von 1 bis 4 gestellten wässerigen Flotte
(a) mit mindestens einem anionischen Farbstoff färbt und zugleich pickelt und (b) mit mindestens einem Gerbmittel gerbt.
Der Färbevorgang (a) kann vorteilhafterweise in Gegenwart eines mit Wasser nur teilweise mischbaren Lösungsmittels wie z.B. Butanol, Benzylalkohol oder Tributylphosphat durchgeführt werden, dass als farbvertiefende Komponente wirkt.
摘要:
Tanned leather, skin or pelt is produced by non-metal tanning, comprising the step of tanning a bated hide, skin or pelt with a tanning agent (A), the tanning agent (A) being at least one compound of a formula (I), wherein X signifies fluorine or chlorine, and/or (+NR3)0-1, wherein R is a substituted or unsubstituted C1 to C6 alkyl group, a substituted or unsubstituted C6 to C10 aryl or a C5 to C6heteroaryl group, R1 signifies hydrogen, C1-8-alkyl or an alkyleneoxy radical of a formula (Ia), -(—C2-3 alkylene-O—)q—H (Ia), R2 signifies hydrogen or hydroxyl, m, signifies 1, 2 or 3, q is of from 1 to 10, M signifies hydrogen or an alkali metal cation or an ammonium cation, being a protonated tertiary amine or a quaternary ammonium cation, in a tanning bath having a pH of from 6 to 10 at the beginning of tanning step.
摘要:
A process for leather production from a raw animal hide includes the steps of presoaking, soaking, unhairing and liming, re-liming, deliming and bating, pickling and tanning, degreasing, re-tanning, neutralizing, dyeing and fatliquoring, and washing the processed hide. Waste liquid is collected from at least one of the foregoing steps is recycled to at least one of the foregoing steps. The collected waste liquid can be recycled to the same step, to a different step, or to two of more steps in the process.
摘要:
Tanned leather, skin or pelt is produced by non-metal tanning, comprising the step of tanning a bated hide, skin or pelt with a tanning agent (A), the tanning agent (A) being at least one compound of formula (I), wherein Hal signifies chlorine or fluorine, X signifies N or CR, Y signifies hydrogen, C 1-8 -alkyl, C 1-4 -alkyl-carbonyl, C 1-4 -alkyl-sulphonyl or a radical of formula (la), or (lb) R signifies hydrogen or chlorine, q is 1 to 10 and M signifies hydrogen or an alkali metal cation or an ammonium cation, the ammonium cation being a protonated tertiary amine or a quaternary ammonium cation, in a tanning bath, the tanning bath having a pH of from 6 to 10 at the beginning of the tanning step.
摘要:
Tanned leather, skin or pelt is produced by non-metal tanning, comprising the step of tanning a bated hide, skin or pelt with a tanning agent (A), the tanning agent (A) being at least one compound of formula (I), wherein X signifies fluorine or chlorine, and/or ( + NR 3 ) 0.1 , wherein R is a substituted C 1 to C 6 alkyl group or an unsubstituted Ci to C6 alkyl group, an unsubstituted C 6 to C 10 aryl group or a substituted C 6 to C 10 aryl group or a C 5 to C 6 heteroaryl group. R1 signifies hydrogen, C 1.8 -alkyl or an alkyleneoxy radical of formula (la), - (- C 2-3 alkylene - O -) q - H (la) R2 signifies hydrogen, hydroxy, C 1-4 -alkyl or C 1-4 -alkoxy, m signifies 1 or 2, n signifies 0 to 2, q is of from 1 to 10, M signifies hydrogen or an alkali metal cation or an ammonium cation, the ammonium cation being a protonated tertiary amine or a quaternary ammonium cation, in a tanning bath, the tanning bath having a pH of from 6 to 10 at the beginning of tanning step, wherein the bated hide or skin or pelt is subjected to tanning with (A) without previous pickling.
摘要翻译:通过非金属鞣制生产鞣革,皮或毛皮,包括用鞣剂(A)鞣制软皮,皮或毛皮的步骤,鞣剂(A)是至少一种式(I)化合物, ,其中X表示氟或氯,和/或(+ NR 3)0.1,其中R为取代的C 1至C 6烷基或未取代的C 1至C 6烷基,未取代的C 6至C 10芳基或 取代的C 6至C 10芳基或C 5至C 6杂芳基。 R 1表示氢,C 1-8烷基或式(Ia)的亚烷基氧基, - ( - C 2-3亚烷基-O-)q -H(1a)R 2表示氢,羟基,C 1-4 - 烷基或C 1-4-烷氧基,m表示1或2,n表示0-2,q为1-10,M表示氢或碱金属阳离子或铵阳离子,铵阳离子为质子化叔胺或季铵 铵阳离子,在鞣制浴中,鞣制浴在鞣制步骤开始时具有6至10的pH值,其中在没有预先酸洗的情况下用(A)对带皮或皮或毛皮进行鞣制。