Textiles: spinning – twisting – and twining – Strand structure – Covered or wrapped
Patent
1981-09-23
1984-02-28
Petrakes, John
Textiles: spinning, twisting, and twining
Strand structure
Covered or wrapped
57 6, 57 7, 57 32, 57234, 57235, 57907, D02G 306, D02G 336, D02G 340, D02G 344
Patent
active
044335369
ABSTRACT:
An improved synthetic twine and method of manufacturing same are disclosed. The synthetic twine comprises at least one longitudinally extending oriented synthetic ribbon which has been fibrillated to provide a net-like structure having fine fibril stems connected by finer fibril branches, and a synthetic binder in thin band form made of a material compatible with the synthetic ribbon. The synthetic binder is spirally wrapped around and fused to the synthetic ribbon. The method of making a twine comprises the steps of providing at least one longitudinally extending ribbon, orienting the synthetic ribbon and fibrillating the synthetic ribbon to provide a net-like structure having fine fibril stems connected by finer fibril branches. Thereafter, a synthetic binder in thin bank form is spirally wrapped and fused around the synthetic ribbon which has been oriented and fibrillated. Such a twine is more economical to produce, yet exhibits comparable characteristics to conventional synthetic twines, particularly in terms of knotting strength.
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Dexter R. A.
Exxon Research & Engineering Co.
Graham R. L.
Petrakes John
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