Method for making retroreflective elements having enhanced...

B - Operations – Transporting – 29 – D

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B29D 11/00 (2006.01) G02B 5/128 (2006.01)

Patent

CA 2346305

Retroreflective elements comprising exposed-lens optical elements can be made by: (a) providing at least one retroreflective article comprising a monolayer of exposed-lens optical elements (12); a spacing layer (14); and a reflective layer (16); (b) forming a core layer (18); (c) attaching said retroreflective article onto said core layer yielding a retroreflective composite; and (d) dividing said composite into retroreflective elements. The retroreflective elements can be retroreflective under dry and/or wet conditions, and can be placed on selected surfaces.

L'invention concerne des éléments rétroréfléchissants comprenant des éléments optiques à lentilles exposées. Le procédé de fabrication de ces éléments consiste a) à fournir au moins un article rétroréfléchissant comprenant une monocouche d'éléments optiques (12) à lentilles exposées; une couche intercalaire (14) et une couche réfléchissante (16); b) à former une couche centrale (18); c) à fixer cet article rétroréfléchissant sur ladite couche centrale produisant ainsi un composite rétroréfléchissant et d) à diviser ce composite en éléments rétroréfléchissants. Ces éléments peuvent être rétroréfléchissants dans des conditions humides et/ou sèches et peuvent être placés sur des surfaces sélectionnées.

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