Acetate fiber or cellulose acetate (CA) is the most important synthetic cellulose ester. It was first prepared in 1865 by heating cotton with acetic anhydride. Classified as a chemical fiber textile or semi-synthetic, acetate is sometimes mixed with silk, wool or cotton to make it stronger. Acetate flakes are generated by a reaction of the wood pulp to a variety of acetic acids. The flakes are dissolved in a solvent, and then passed through a spinneret as the solvent evaporates to create the filaments used to construct the acetate fabric.
Distinguishing attributes of acetate: cellulose acetate fiber in which less than 92 %, but at least 74 %, of the hydroxyl groups are acetylated. Acetate fabrics are made with spun filaments of cellulose taken from wood pulp. Acetate is a man-made fibre derived from cellulose. The purified cellulose is obtained from wood pulp, using a chemical reaction with acetic acid and acetic anhydride with sulphuric acid. Acetate fabric has a luxurious feel and appearance, but it's also very delicate and in its pure form it must be hand washed or programs run at lower temperatures.
Example of chemical formula acetate:
Secondary cellulose acetate structure. |
Where X = H or CH3CO and the degree of esterification is at least 2,22 but less than 2,76
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