Method and apparatus for opening continuous filaments
AssigneeUni-Charm Corporation
InventorsHiroo Hayashi, Kodai Furuya
Life of this patent
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Abstract
A method and an apparatus for opening continuous filaments provide stable quality of fibrous layer after opening crimped TOW. The TOW is transported by means of a plurality of rolls. While transported, the TOW is applied a resistance on one side of the TOW by slidingly contacting a sliding body onto the TOW at between rolls. As a result, continuous filaments stacked in a thickness direction of the TOW are caused to sift in a transporting direction of the TOW. Thus, the TOW is opened and the continuous filaments are spread in a width direction of the TOW.
Claims7
An opening method for continuous filaments, comprising the steps of:
- transporting crimped tow by means of a plurality of rolls;
- and
- applying a resistance on at least one side of said tow by slidingly contacting a plurality of sliding bodies onto said tow at a position between said rolls, whereby continuous filaments stacked in a thickness direction of said tow are caused to shift in a transporting direction of said tow to open said tow and to spread said continuous filaments in a latitudinal direction of said tow, wherein
- each side of said tow is slidingly contacted by at least one of said sliding bodies, and each sliding body is adjustable about a tilt angle relative to a line perpendicular to a transporting path of said tow and a penetration amount into the transporting path of said tow.
An opening apparatus for continuous filaments, comprising:
- a transporting roll group for transporting crimped tow of continuous filaments;
- a plurality of sliding bodies arranged between rolls of said transporting roll group so that each side of said tow is slidingly contacted by at least one of said sliding bodies;
- detecting means for detecting a width of spread continuous filaments after slidingly contacting with said sliding bodies;
- adjusting means for adjusting a tilt angle of each sliding body relative to a line perpendicular to a transporting path of said tow and a penetration amount of each sliding body into the transporting path of said tow;
- and
- control means for controlling said adjusting means for varying said tilt angle and said penetration amount of each sliding body based on a value detected by said detecting means.
Dependencies are inferred from the claim text.