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.
Ethylene vinyl acetate, also known as EVA, is an elastic polymer material that is similar to rubber. EVA usually contains no more than 40 percent vinyl acetate by weight, with the rest of the polymer being ethylene. It is resistant to cracks and ultraviolet radiation. Continue Reading.