Composite yarn and its manufacture
AssigneeJ. & P. Coats Limited
InventorsKevin HELMS, Steven Todd POOL
Life of this patent
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Abstract
A method of manufacturing comingled yarn of carbon and thermofusible fibres comprises the steps of: feeding a tow of thermofusible fibres from a spool to a blending roller and between the spool and the blending roller, spreading the thermofusible tow; feeding a tow of carbon fibres from a spool to the blending roller; spreading the carbon fibre tow between the spool and the blending roller by applying a flow of air over the tow to urge the tow against a supporting surface over which the carbon fibres pass on their way to the blending roller; combining the thermofusible and carbon fibre tows at the blending roller.
Claims14
A method of manufacturing comingled yarn of reinforcing and thermofusible fibres comprising the steps of:
- feeding a tow of thermofusible fibres from a spool to a blending roller and between the spool and the blending roller, spreading the thermofusible tow;
- feeding a tow of reinforcing fibres from a spool to the blending roller;
- spreading the reinforcing fibre tow between the spool and the blending roller by applying a flow of air over the tow to urge the tow against first and second supporting surfaces over
- which the reinforcing fibres pass on their way to the blending roller;
- combining the thermofusible and reinforcing fibre tows at the blending roller.
Dependencies are inferred from the claim text.