PROCESS FOR MANUFACTURING A SHEET MATERIAL

专利名称：PROCESS FOR MANUFACTURING A SHEET

MATERIAL

发明人：CAMUS, MICHEL,DOUBLET, PIERRE申请号：EP08827561.5申请日：20080711公开号：EP21762B1公开日：20110914

摘要：The present invention relates to a process for manufacturing a sheet materialcomprising at least two fibrous plies juxtaposed one on top of the other, said processcomprising the following steps: a first paper ply, which includes at least one elongateregion of zero thickness, is produced by filtration of an aqueous suspension of fibres onthe wire of a first cylinder mould or of a former; a second paper ply is produced on thewire of a second cylinder mould so as to form at least one recess in the second ply; atleast one at least partially transparent element is placed between the two plies that arestill wet; and the two plies are joined together so that said at least one recess of thesecond ply, said at least one at least partially transparent element and said at least oneelongate region of zero thickness of the first ply are situated facing one another; and thestructure thus obtained is dried.

申请人：ARJOWIGGINS SECURITY,ARJOWIGGINS SECURITY,ARJOWIGGINS SECURITY

地址：FR

国籍：FR

代理机构：Tanty, François

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