Production of high-contraction copolyester flock
A high-shrinkage copolyester staple is prepared by combination of chemical modification with physical modification. During the polymerization of polyester chips the isophthalic acid is added. In the spinning and draft procedure, lower spinning, drafting and shape fixing temp and high draft factor ar...
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Zusammenfassung: | A high-shrinkage copolyester staple is prepared by combination of chemical modification with physical modification. During the polymerization of polyester chips the isophthalic acid is added. In the spinning and draft procedure, lower spinning, drafting and shape fixing temp and high draft factor are used. Its advnatages are high shrinkage (more than 35%) and high shrinking stability. |
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