Manufactured fibers are obtained by processing what?

Manufactured fibers are indeed obtained by processing chemical substances. These fibers are created through a chemical process that transforms synthetic materials, like polymers, into usable textile fibers. This includes materials such as nylon, polyester, and acrylic, which are not naturally occurring but are instead synthesized in a laboratory setting.

The chemical process typically involves the polymerization of small molecule units (monomers) into long chains (polymers), which are then extruded through a spinneret to form threads or fibers. This method allows for a wide variety of fiber properties to be engineered, giving manufacturers the ability to create textiles with specific characteristics desired for various applications.

In contrast, natural fibers like those derived from plants (vegetable fibers) or animals (animal products) do not undergo this chemical transformation; they are harvested and processed in more traditional ways. Raw materials could encompass both natural and synthetic sources, but it is the chemical processing of substances that defines the manufactured fibers specifically.