A type of paper intended to resemble ancient parchment (which had actually been made from the split skins of sheep). Vegetable parchment (in contrast to imitation parchment) is produced by passing the paper through a tub of sulfuric acid, which fuses the paper fibers into an undifferentiated mass. It has high wet strength and is greaseproof. Vegetable parchment has a distinctive appearance, and is used for greeting cards, reproductions of ancient documents, and greaseproof package enclosures. Vegetable parchment, having a greaseproof surface, needs to be printed using special inks.
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