Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

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Agents which inhibit the build up of foam, or which reduce foam or entrapped air by causing the bubbles to burst, thus releasing the air. Most commercial defoamers are mixtures of surface-active agents, hydro-carbons, alcohols, polymers, etc., to increase their effectiveness in multiple applications. Defoamers are used in papermaking operations. Also called "anti-foam agents. " (17 )

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