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.
It is highly recommended to keep acetate fabrics away from perfumes, nail polish removers, alcohol based deodorants, and other organic solvents. These liquids will create stains which are difficult, and sometimes impossible, to remove. Acetate is a thin, synthetic fabric with the luxurious look of silk.