Label film for wrap-around labels

B - Operations – Transporting – 32 – B

Patent

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Details

B32B 27/32 (2006.01) B32B 5/18 (2006.01) B32B 27/08 (2006.01) B32B 27/20 (2006.01) G09F 3/10 (2006.01)

Patent

CA 2703573

The invention relates to a multi-layer, opaque, biaxially-oriented polyolefin film with a thickness of at least 40 µm of a vacuole-containing base layer B and intermediate layers Z applied on both sides thereof of at least 70 % by weight of a propylene homopolymer, and with a thickness of at least 3 µm and a covering layer D on both sides thereof of a mixture of incompatible polymers and respectively a surface roughness Rz of at least 2.5 µm (with a cut--off of 0.25 mm). The invention also relates to the use of this film as a wrap-around label.

L'invention concerne une feuille polyoléfinique biorientée, opaque, multicouche, d'une épaisseur d'au moins 40µm, comprenant une couche de base (B) contenant des vacuoles, des couches intermédiaires (Z) appliquées sur les deux faces de la couche de base, composées d'au moins 70% en poids d'un homopolymère de propylène et présentant une épaisseur d'au moins 3µm, et des couches de surface (D) recouvrant les deux faces, composées d'un mélange de polymères incompatibles et présentant chacune une rugosité de surface (Rz) d'au moins 2,5µm (cut-off de 0,25mm). L'invention porte également sur l'utilisation de cette feuille comme étiquette enveloppante.

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