vegetable tanning

American  

noun

1. the act or process of tanning hide by the infusion of plant extract.

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Example Sentences

It is tanned by natives according to some method of vegetable tanning not completely known at this time.

From Project Gutenberg

Whereas the evaluation of vegetable tanning matters necessitates determinations of their practical applicability in addition to qualitative and quantitative analyses, the latter two determinations are of practically no value when dealing with synthetic tannins.

From Project Gutenberg

Where the vegetable tanning materials have already been converted into extracts, it is essential to establish the identity of the original material used by the qualitative reactions of the extract in addition to the quantitative estimation of actual tannin contents.

From Project Gutenberg

The determination of the weight and solidity-giving properties is important both for leathers tanned with vegetable tanning extracts and for those treated with synthetic tannins, but the results obtained when using animalised cotton are not directly convertible into figures required for practical purposes.

From Project Gutenberg

Neradol D liquor for about four days; the resultant leather being nearly white and otherwise very similar to a leather tanned with vegetable tanning materials.

From Project Gutenberg