Title: Process for continuously bonding staple fibers into an essentially non-twisted yarn

Abstract: A process for continuously bonding staple fibers into an essentially non-twisted yarn comprising the steps of introducing into a fiber arrangement composed of staple fibers an excess of a liquid containing an adhesive in distributed form, squeezing excess liquid out of the fiber arrangement, compacting the fiber arrangement by applying pressure to form a moist slubbing, and for setting the adhesive and transforming the slubbing into a bonded yarn bringing into contact as by feeding the slubbing into a condensing vapor atmosphere. The yarn produced according to the aforementioned process, compared to a yarn set in dry air with the same quantity of adhesive, possesses a higher breaking length and rupture or break elongation and a smoother surface.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Naegeli, Werner (Winterthur, CH)

Application Number: 263935
Filing Date: 1972-06-19
Publication_date: 1977-03-01
Assignee: Pavena AG (Basel, CH)
Primary Class(es): 156/296 19/66R, 28/116, 427/335, 427/365, 427/389.9, 428/361, 428/378
Other Classes:
US Patent Ref:

2689813	Sep, 1954	Lawrence	161/176.
2834704	May, 1958	Lawrence	156/180.
3426389	Feb, 1969	Naegeli	19/66.
3432889	Mar, 1969	Naegeli	19/66.
3512232	May, 1970	Bolinger	161/176.

Other Refs:
Primary Examiner: Van Horn, Charles E.
Assistant Examiner: Ball, Michael W.
Attorney: Kleeman; Werner W.