发明名称 |
PROCESSO DE FABRICAÇÃO DE UM MATERIAL EM FOLHA, DOCUMENTO DE SEGURANÇA E MATERIAL EM FOLHA. |
摘要 |
<p>A process for manufacturing a sheet material comprising at least two fibrous plies juxtaposed one on top of the other, including the following steps: a first paper ply is produced by filtration of an aqueous suspension of fibers on the wire of a cylinder mould or of a former, a partly transparent element being inserted into the ply during the formation of the ply, and such that the transparent element is placed in the elongate region of zero thickness; a second paper ply is produced on the wire of a second cylinder mould so as to form at least one recess in the second ply; the two plies are joined together so that at least one recess in the second ply is located facing the elongate region of zero thickness of the first ply; and the structure thus obtained is dried.</p> |
申请公布号 |
BRPI0813542(A2) |
申请公布日期 |
2014.12.23 |
申请号 |
BR2008PI13542 |
申请日期 |
2008.07.11 |
申请人 |
ARJOWIGGINS SECURITY |
发明人 |
MICHEL CAMUS;PIERRE DOUBLET |
分类号 |
D21H27/30;D21F11/08;D21H21/42;D21H21/44;D21H27/32 |
主分类号 |
D21H27/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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