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Merriam-Webster defines ''Cuprammonium rayon'' as "a rayon made from cellulose dissolved in cuprammonium solution".〔(【引用サイトリンク】 title=cuprammonium rayon )〕 It is produced by making cellulose a soluble compound by combining it with copper and ammonia. The solution of this material in caustic soda is passed through the spinneret and the cellulose is regenerated in the hardening baths that remove the copper and ammonia and neutralize the caustic soda. Cuprammonium rayon is usually made in fine filaments that are used in lightweight summer dresses and blouses, sometimes in combination with cotton to make textured fabrics with slubbed, uneven surfaces.〔(【引用サイトリンク】 title=Rayon Fiber )〕 The fabric is commonly known by the trade name "Bemberg", owned by the J.P. Bemberg company. The fabric may also be known as "cupro" or "cupra". ==Properties== There are many properties of cuprammonium rayon 〔(【引用サイトリンク】 title=Properties of Cuprammonium Rayon )〕 * Very fine * Produce a soft silk like handle *Has same properties as cotton except the average DP is lower, and a larger part of this fibre is occupied by amorphous region. * It burns rapidly and chars at 180 deg C. * On ignition, it leaves behind ash containing copper. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Cuprammonium rayon」の詳細全文を読む スポンサード リンク
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