摘要:
A liquid smoke tanning method uses liquid smoke as a tanning agent for tanning an animal skin, such as a hide or fur. The liquid smoke is used a natural source of aldehydes, which are commonly used in the tanning process and known to introduce toxicity into the animal skin. After the skin is prepared and cleaned for tanning, it is tanned in a liquid smoke solution, which may also include alum in an alternative embodiment. The liquid smoke is efficacious for crosslinking collagen proteins in the animal skin during the tanning process. The liquid smoke provides substantially the same collagen crosslinking capacity of aldehydes such as glutaraldehyde, formaldehyde, or glyoxol. The liquid smoke is, however, organic and does not contain the level of toxins found in chemically produced aldehydes. After the tanning, the skin is dried through known means for production as an organic, nontoxic leather.
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:
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 C6 heteroaryl 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, hydroxyl, C1-4-alkyl or C1-4-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:
The invention provides a surface active ingredient composition, which includes a base liquid including water which has dispersed therein in percentages by volume: Sodium Chloride1 to 3% Magnesium1 to 2% Calcium1 to 2% Potassium1 to 2% Sulphate1 to 2% Carbon0.5 to 1% Nitrate1 to 2% and Phosphate1 to 2% sodium chloride dissolved in the base liquid; and sodium alkyl ether sulphate dissolved in the base liquid, with the portion of the base liquid to sodium chloride and sodium alkyl ether sulphate being between 1:1:1.5 and 1:1:5. The invention further provides a process for producing same and uses thereof.
摘要:
Process for hydrophobing a leather tanned with organic tanning agents, characterized in that the leather is treated with a preparation containing at least one alkylalkoxysilane of the formula I R1R2 Si(OR3)(OR4) (I),in which R1 represents a C1-C30-hydrocarbon radical, in particular an aliphatic, preferably an aliphatic, saturated C6-C20-radical, particularly preferably hexadecyl or octadecyl, R3 and R4, independently of one another, represent a C1-C10-hydrocarbon radical, in particular an aliphatic C1-C10-radical, preferably saturated, particularly preferably a C1-C4-radical, methyl, ethyl, propyl or isopropyl being preferred, and R2, independently of R1, has the meaning of R1 or represents OR3 or OR4.
摘要:
An aloe vera re-tanned leather for use in a glove, garment, sandal or shoe. The leather includes tanned leather having an internal fiber matrix. An aloe vera powder of aloe vera particles in a gel carrier is in the tanned leather in a retanning process so that the aloe vera particles in the gel carrier penetrate the internal fiber matrix and are temporarily trapped within the internal fiber matrix. The trapped aloe vera particles in the tanned leather gradually emerge from the inside surface of the leather to be in contact with, lubricate and treat the skin of a wearer of the glove, garment, sandals or shoes, whereby the aloe vera lubricated leather is particularly suitable for use in gloves, garments, sandals or shoes which come in contact with a wearer's skin. The process of retanning the leather to include the aloe vera in the leather and the gloves, garments, sandals and shoes incorporating the aloe vera retaining leather is also described.
摘要:
Described are a composition and process for the enzymatic tanning of hides utilizing one or more transglutaminases for crosslinking the collagen in the hide.
摘要:
A process for the production of mineral tanned or/and re-tanned or/and after-treated leather or pelt, wherein before the mineral tanning, directly after the mineral tanning, directly before the mineral re-tanning, after the mineral re-tanning or/and with the after-treatment of a fatliquoring with a polyvalent metal cation, the substrate is treated with (A) a polymeric carboxylic acid containing .alpha.-hydroxyacrylic acid units, optionally in salt form, as constituent units of the polymer, by which a high exhaustion of mineral (re)tanning agent, an excellent distribution of the tanning agent and very pleasant soft handle of the (re)tanned leather resp. an outstanding water resistance of mineral after-treated fat-liquored leather can be achieved.
摘要:
Abstract of the Disclosure: A process for tanning leather comprises using for this purpose compounds of the general formula I ##STR1## where m is 0 or 1, and the radicalsR are independently of each other C.sub.1 -C.sub.18 -alkyl, which may be substituted by hydroxyl or carboxyl and/or interrupted by oxygen atoms, or else one of the radicals R is a radical of the formula ##STR2## where R.sup.1 is alkylene, which may be substituted by hydroxyl and/or interrupted by oxygen atoms.