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非织布无纺布的定义标准

发布时间:2012-04-29

非织布无纺布的定义标准

(一)国家标准(GB/T5709-1997)


  定向或随机排列的纤维通过摩擦、抱合或粘合或者这些方法的组合而相互结合制成的片状物、纤网或絮垫(不包括纸、机织物、簇绒织物,带有缝编纱线的缝编织物以及湿法缩绒的毡制品)。所用纤维可以是天然纤维或化学纤维;可以是短纤维、长丝或当场形成的纤维状物。

  为了区别湿法非织造材料和纸,还规定了在其纤维成分中长径比大于300的纤维占全部质量的50%以上, 或长径比大于300的纤维虽只占全部质量的30%以上但其密度小于0.4g/cm3的,属于非织造材料,反之为纸。

(二)ISO9002 赋予的定义


   ISO9002赋予非织造材料的定义如下(用原文表示):

  A manufactured sheet, web or batt of directionally or randomly orientated fibers, bonded by friction, and/or cohesion and/or adhesion, excluding paper (see note) and products which are woven, knitted, tufted, stitch-bonded incorporating binding yarns or filaments, or felted by wet-milling, whether or not additionally needled.

  The fibers may be of natural or man-made origin. They may be staple or continuous filaments or be formed in site.

 

(三)INDA赋予的定义

  INDA (International Nonwovens and Disposable Association) 赋予非织造材料的定义如下(用原文表示):

  Nonwoven fabrics are broadly defined as sheet or web structures bonded together by entangling fiber or filaments (and by perforating films) mechanically, thermally or chemically. They are flat, porous sheets that are made directly from separate fibers or from molten plastic or plastic film. They are not made by weaving or knitting and do not require converting the fibers to yarn.

 

(四)ASTM赋予的定义

  ASTM赋予非织造材料的定义如下(用原文表达):

  A structure produced by bonding of mechanical, chemical, thermal, or solvent means and the comination thereof. The term does not include paper or fabrics that are woven, knitted, tufted or those made by wool or other felting processes.