Sappi Fine Paper Europe is launching Algro Guard M and Leine Guard M barrier paper grades at Interpack 2014 .
In a statement Sappi announced that these recyclable packaging materials are designed to address concerns about migration of mineral oil into food from packaging that is manufactured from recycled paper. Developed in partnership with BASF and Eurofins, the Algro Guard M has been designed for gravure printed primary packaging such as pouches, sachets, bags and wrappers, and is available in 90 g/m² to 140 g/m². This grade incorporates a blade coating on the top side for gravure printability with the mineral oil barrier on the reverse side; while the Leine Guard M for inner bags combines Machine Glazed Bleached Kraft (MGBK) paper with the mineral oil barrier on the reverse side. It is available in 80 g/m²  to 120 g/m².
According to Sappi, the Algro Guard M and Leine Guard M protect packaged food from mineral oil compounds that are a complex mixture of saturated hydrocarbons (MOSH) and unsaturated hydrocarbons (MOAH). This new mineral oil barrier functionality protect food for minimum 15 months; and as there is no use of PET or aluminium, it is a sustainable and cost effective material.
“The integrated solution of mineral oil barrier functionality combined with excellent heat sealing properties minimise converting process steps and considerably reduce costs in the supply chain.” Commented René Köhler, product group manager Flexpack Sappi.
Algro Guard M and Leine Guard M have been commercially available since June of 2014.