Recycled yarns from textile waste and the manufacturing process therefor
AssigneeEco Fibre Canada Inc.
InventorDavid S. Heifetz
Life of this patent
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Abstract
The subject invention provides a new method for manufacturing yarns using recycled cotton waste and a new type of recycled cotton yarn. Various types of cotton waste materials such as manufacturing by-products and post-consumer material are used in conjunction with virgin yarns to produce recycled yarns of sufficient quality to be used for garment manufacture.
Claims14
A method of processing a combination of virgin cotton fibres and fibrous, woven or spun textile waste as source material, to produce a high quality recycled twisted yarn therefrom, said method comprising the steps of:
- (a) providing said source material having a minimum content of recycled cotton waste of not less than 10% of the total source material;
- (b) processing said source material using standard blending, carding and drafting equipment;
- (c) further processing said material by open end spinning, said spinning operation imparting a minimum of an additional 10% more twists to the processed fibres than in standard spinning processes and producing a twisted yarn having a minimum 10 count size,
- where prior to blending the woven or spun textile waste said material is pre-processed by a method comprising the steps of:
- (a) manual sorting of the waste materials;
- (b) preparing said waste by removal of all buttons, zippers, heavy seams and hard fasteners;
- (c) garnetting said material at a significantly reduced processing rate of approximately 1,000 to 2,500 pounds of material per hour;
- and
- (d) carding said material extensively with the flats set at least 35% closer together than would be used for fibrous waste such as gin motes.
A method of spinning normally unspinnable combination of at least 50% waste material consisting of at least one of uncombed, blended, drafted and carded fibrous, woven or spun textile waste, said method involving spinning said material by an open end spinning operation imparting a minimum of an additional 10% more twists than in standard spinning processes to form an even high quality recycled twisted yarn with a minimum 10 count size suitable for garment manufacture.
A method of processing a combination of virgin cotton fibres and fibrous, woven or spun textile waste as source material, to produce a high quality recycled twisted yarn therefrom, said method comprising the steps of:
- (a) providing said source material having a minimum content of recycled cotton waste of not less than 50% of the total source material;
- (b) processing said source material using standard blending, carding and drafting equipment;
- (c) further processing said material by open end spinning, said spinning operation imparting a minimum of an additional 10% more twists to the processed fibres than in standard spinning processes and producing a twisted yarn having a minimum 10 count size.
A method of spinning normally unspinnable combination of at least 95% waste material consisting of at least one of uncombed, blended, drafted and carded fibrous, woven or spun textile waste, said method involving spinning said material by an open end spinning operation imparting a minimum of an additional 10% more twists than in standard spinning processes to form an even high quality recycled twisted yarn with a minimum 10 count size suitable for garment manufacture.
Dependencies are inferred from the claim text.