The machine adopts steam preheating, preshrinking, drying design, make , the prepolycondensation cloth softer and smooth.

本机采用蒸汽预热、预缩、烘干设计，使预缩过的布料更加柔和、平整。

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Furthermore, the effect of preshrinking, pre-setting and de-weighting in de-weighting process of hard-twisted PET woven fabrics was investigated especially.

并着重研究了预缩、预定形和减量工序在涤纶机织物强捻产品减量过程中所起的作用。

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Finally, it was pointed out that computer control in dye machines during the preshrinking and de-weighting process is crucial to ensure the quality of products.

最后指出，染缸内预缩和减量加工过程中采用的电脑程序集中控制是稳定产品质量的关键。

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