Method for producing bonded non-wovens from at least partially microfine continuous fibres and non-wovens thereby produced
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United States of America Patent
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Issued Date -
Nov 11, 2004
app pub date -
May 25, 2004
filing date -
Jun 7, 2001
priority date (Note) -
Abandoned
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Abstract
Non-wovens from water-entangled continuous split fibres and such fibres produced by the meltblown method are known per se. Split fibres are composed of several polymers and are expensive to produce. The drawing air which must be heated to high temperatures in the meltblown method impairs the resistance of the fibres, which are often tom forming staple fibres. The non-wovens or parts of the non-wovens are preferably made from continuous fibres, which burst in a longitudinal direction during production due to high hydrostatic pressure inside the fibre, forming monofilaments with a diameter of approximately 2 .mu.m, whereby fine, resistant continuous filaments are produced. Non-wovens produced using said thin fibres are bonded using hydrodynamic needling in order to obtain abrasion-resistant wipe non-wovens.
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