vegetable tanning การใช้

Historically the actual tanning process used vegetable tanning.
Vegetable tanning uses tannins ( a class of polyphenol astringent chemicals ), which occur naturally in the bark and leaves of many plants.
Gucci, 63, who talked easily of vegetable tanning and decried the chemical leather treatment that dominates the industry now, could not see how Gucci's increased production could preserve quality.
Chrome tanning is faster than vegetable tanning ( less than a day for this part of the process ) and produces a stretchable leather which is excellent for use in handbags and garments.