纤维组织的均匀度

出处:按学科分类—工业技术 中国轻工业出版社《涂布加工纸技术手册》第167页(5362字)

这应该要求其愈均匀愈好,分布差而呈块状的均匀度(俗称“云彩花”)将引起以下情况:

(1)最后涂布成品产生“花斑”(mottle);

(2)虽然涂布上不产生花斑,但由于原纤维组织不均匀引起的涂料的不均一吸收,引起印刷油墨的吸收差异,最后产生印刷成品的“花斑印刷”(mottled print)。

原纸的性质是有协调性的,如要达到好的纤维组织匀度必须不降低纸张强度。如长而强韧的纤维强度好而匀度不好,而短纤维强度低而匀度好,因此用正确的纤维配比是使原纸得到最佳纤维组织的均匀度及达到需要强度的特性的关键。

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