Lesson 3 The technics of nonwovens fabrics

3.3.1Preparationforwebforming3.3.1.1ProceduresbeforewebformingThefiberswithcertainlengthandlineardensitycanbeformedwebbycarding.Butinordertoachievefavorablecardingeffect,therawmaterialsmustbetreatedbyaseriesofprocessingbeforecarding.Theprocessbeforewebfor ......      (共20764字)     [閱讀本文]>>



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