According to the characters of opened waste yarn and requirements of the quality of yarn, it designs a practical technology parameter on each stage of process.

根据原料纤维的杂质少、纤维短、短绒多、整齐度差等特点和纱线质量要求设计了转杯纺生产工艺流程，并对加工中各道工序的工艺参数进行调整。

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Waste is waste hemp yarn hemp can be woven sack cloth, canvas, carpet and other fabrics.

废麻纺是用废麻纺纱，可织麻包布、粗帆布、地毯布等。

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Early opening and later weft insertion were adopted in weaving, adjusting of leno selvage and waste selvage yarn can reduce weaving defects and make weaving efficiency reach above 82%.

织造过程中采用早开口，迟引纬，调整绞边及废边纱穿法，有效解决了织造疵点，使织造效率达到82%以上。

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Unifi, for example, developed its own brand of yarn called REPREVE, which is made from industrial waste and clear plastic water bottles, and is used primarily by apparel manufacturers.

FORBES: Ford's Global Ambitions Include Turning The World's Plastic Bottles Into Car Parts