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US 3,945,186 AGranted
Method of manufacturing twistless yarn and the product thereof
AssigneeHollandse Signaalapparaten B.V.
InventorJacobus Maurits Van Dort
Life of this patent
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Abstract
In the manufacture of twistless yarn a potentially adhesive continuous filament yarn is added to an assembly of staple fibres. The fibre mixture so obtained is supplied with a solvent which, brings the potentially adhesive filament yarn into a plastic state and, enables wet drafting of the staple fibre component. After the drafting process the staple fibres are bonded.
Claims7
A method of manufacturing twistless yarn from a staple fibre material and a continuous filament yarn which is potentially adhesive upon application at least of moisture, including the sequential steps of:
- combining the continuous filament yarn with the staple fibre material to obtain a mixed fibre ribbon,
- activating said continuous filament yarn to bring it at least into a plastic state,
- drafting the mixed fibre ribbon in a wet condition to form a thinner fibre ribbon, and
- bonding said thinner fibre ribbon.
1 more element
Dependencies are inferred from the claim text.