A LAMINATE FOR USE IN PACKAGES, A METHOD OF MAKING A RECLOSABLE LAMINATE AND USE THEREOF

摘要

A laminate for use in packages comprising a base layer (3), a welding layer (1), and an adhesive layer (2) sandwiched there between. The adhesive layer (2) is a hot melt or a pressure sensitive adhesive (PSA) having a shear rate of 10-150 minutes at 40 °C using a load of 1000 g at 40 °C in a test area of 12.5 mm x 25 mm. The welding layer (1) comprises a layer of a polyethylene (PE) copolymer, and optionally an additional layer of PET, PE, such as low density polyethylene (LDPE) and/or PP. By the method of making a laminate, it is possible to apply to a base layer (3), an adhesive layer (2) of hot melt/PSA and subsequently a welding layer (1) in one and the same working process in order to form a reclosable laminate (9). This laminate (9) may serve as a reclosable lid on e.g. a package tray (4, 5). The laminate exhibits a reduced risk of formation of cracks or so-called piping in the laminate. Use of the laminate is also disclosed.