The present invention relates to biaxially undulatory single-ply and multi-ply tissues, single-ply and multi-ply towels, single-ply and multi-ply napkins and other personal care and cleaning products as well as novel creping blades and novel processes for the manufacture of such paper products....http://www.google.es/patents/US5685954?utm_source=gb-gplus-sharePatente US5685954 - Biaxially undulatory tissue and creping process using undulatory blade
Biaxially undulatory tissue and creping process using undulatory blade
