Casein Fiber - Casein Fiber

Japanese: カゼイン繊維 - カゼインセンイ
Casein Fiber - Casein Fiber

A fiber made from milk casein. Only milk casein fiber has been industrialized. It was first successfully produced in Italy in 1935, and industrialized by Snia Viscosa under the name Lanital, with production reaching 1200 tons/year in 1937. After World War II, it was renamed Merinova. In the UK, Coutaulas produced milk casein fiber Fibrolane. In the US, Aralac was produced for a time, but was replaced by Vicara, which used zein, a corn protein. Milk casein obtained by precipitation with acid from skimmed milk is dissolved in a sodium hydroxide solution, and the spherical molecules are linearized by aging. Spinning is carried out in a spinning bath containing salts and insolubilizing agents such as formaldehyde. After tensioning and insolubilization treatment, the fiber is washed with water, dried, cut, and used as staples. It generally has low strength and high elongation. It is not dyeable. Currently, fibers are also produced by copolymerizing casein with acrylonitrile.

Source: Morikita Publishing "Chemical Dictionary (2nd Edition)" Information about the Chemical Dictionary 2nd Edition

Japanese:

牛乳カゼインより作製された繊維.工業化されたのは牛乳カゼイン繊維のみである.イタリアで1935年にはじめて製造に成功し,Lanitalと名づけてSnia Viscosaが工業化し,1937年には生産高1200 t/年に達した.第二次世界大戦後はMerinovaと改称されている.イギリスではCoutaulasが牛乳カゼイン繊維Fibrolaneを生産していた.アメリカではAralacが一時つくられたが,トウモロコシタンパクのゼインを利用したVicaraにとってかわった.脱脂牛乳から酸により沈殿して得た牛乳カゼインを水酸化ナトリウム溶液に溶かし,熟成により,球状分子を線状化する.紡糸は塩類およびホルムアルデヒドなどの不溶化剤を含む紡糸浴中で行う.緊張,不溶化処理したのちに,水洗,乾燥後,切断してステープルとして利用する.一般に強度が低く,伸度が大きい.染色性はない.現在ではカゼインをアクリロニトリルと共重合した繊維もつくられている.

出典 森北出版「化学辞典(第2版)」化学辞典 第2版について 情報

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