Rotating Flat Cards

Japanese: 回転フラットカード - かいてんふらっとかーど
Rotating Flat Cards

…In the past, thread was spun directly from a mass of fibers, but in the 18th century, cotton was placed on a board with needles and combed with a similar board, which developed into the modern card. Figure 1 shows a schematic diagram of a rotating flat card for cotton spinning. A is a wrap of fibers gathered in a strip shape, which is unwound and moves to the right, where the fibers are shaved off by the sawtooth garnet wire of the taker-in B. …

From [Spinning Machinery]

...In both cases, dust is removed by centrifugal force and air flow. (2) Rotary flat card The fiber mass or wrap opened by the blowing machine is torn apart by a sawtooth garnet wire and the fibers are sent to a cylinder, where they are combed between the sawtooth metallic wire on the surface of the cylinder and the flat card clothing to separate the fibers one by one (impurities and short fibers tend to move to the flat side). The fibers are then transferred onto the metallic wire of the doffer and stripped into a film-like shape by a doffer comb, and squeezed to make a sliver.

*Some of the terminology that refers to "rotating flat cards" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…昔は繊維塊から直接糸を紡いでいたが,18世紀になると針を植えた板に綿花を載せて,同様な板でくし削るようになり,これが現在のカードへと発展した。図1に綿紡用の回転フラットカードの模式図を示す。Aは帯状に繊維を集めたラップで,ほどかれて右へ移動し,テーカーインBののこぎり歯状ガーネットワイヤで繊維は削り取られる。…

【紡績機械】より

…いずれも遠心力,空気流により除塵する。(2)回転フラットカード 混打綿機で開繊された繊維塊あるいはラップを鋸歯状のガーネットワイヤで引き裂いてシリンダーに繊維を送り,シリンダー表面の鋸歯状メタリックワイヤとフラットの針布との間でくしけずって繊維1本1本に分離する(夾雑(きようざつ)物,短繊維はフラット側に移りやすい)。ついでドッファーのメタリックワイヤ上に繊維を移してドッファーコームで膜状にはぎとり,かつ絞ってスライバーを作る。…

※「回転フラットカード」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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