Twine and method of forming same

Details Twine and method of forming same Twine and method of forming same

1976-07-22

1978-05-30

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Elements

57157R, 264DIG47, D02G 306, B29D 714

Patent

active

040916073

ABSTRACT:
There is disclosed a process for making fibrous material which is particularly suitable for the manufacture of baler twine. The material is preferably made from polypropylene and is produced from film which is roll-embossed and fibrillated, the roll-embossing temperature being substantially lower than the conventional roll-embossing temperature. In the case of polypropylene film this is within the range 60.degree. C to 90.degree. C, preferably about 80.degree. C. As a result, the fibrous material has a high proportion of clusters of from 2 to 5 unseparated incipient filaments. Baler twine made from the material is economical to produce and has improved physical characteristics especially good strength combined with good knot retention ability.

REFERENCES:
patent: 3164947 (1965-01-01), Gaston
patent: 3470285 (1969-09-01), Kim et al.
patent: 3470685 (1969-10-01), Hall et al.
patent: 3494522 (1970-02-01), Kim et al.
patent: 3801252 (1974-04-01), Waterhouse
patent: 3851034 (1974-11-01), Harmon et al.
patent: 3864198 (1975-02-01), Jackson
patent: 3884030 (1975-05-01), Baxter et al.
patent: 3906073 (1975-09-01), Kim et al.
patent: 3922329 (1975-11-01), Kim et al.
patent: 3981952 (1976-09-01), Ruddell et al.

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