sign on, 1  to employ; hire. 2  to bind oneself to work, as by signing a contract: He signed on as a pitcher with a major-league team. 3  to start radio or television broadcasting, especially at the beginning of the day. 4  Computers. log1 (def 17a).
FROM FIBER TO FABRIC: ACETATE INTRODUCTION Initially invented in Europe as a varnish for airplane wings, acetate was first produced in the United States in 1924 making it the second oldest manufactured fiber.
The Food and Drug Administration (FDA) includes Ethyl Acetate on its list of substances considered Generally Recognized As Safe (GRAS) for use as a synthetic flavoring substance and adjuvant.It is also permitted to be used as a secondary food additive as a solvent, lubricant or release agent.DA allows Butyl Acetate to be added to food as a synthetic flavoring substance and adjuvant. The safety of Ethyl Acetate and Butyl Acetate has been assessed by the Cosmetic Ingredient Review (CIR) Expert Panel.