document.writeln('成本端利空 聚酯链跌幅居前');document.writeln('期市午盘收盘 郑棉跌0.92% 棉纱跌0.85% 短纤跌0.35%');document.writeln('期市早盘收盘 郑棉跌0.99% 短纤跌0.81% 棉纱跌0.61%');document.writeln('5月6日华东PTA现货价格走低');