Feuille barrière EVOH feuille coextrudée thermoformage pp

Avec l'essor de l'industrie de la vente à emporter, la demande de boîtes repas augmente également, et la demande de boîtes repas est de plus en plus forte.

PP, also known as polypropylene, has certain mechanical and thermal properties and is suitable for food packaging, so food boxes are usually made of polypropylene sheets.However, the insulation performance of the polyethylene sheet itself is weak, and the temperature of the food is easy to change in the long-distance transportation, so the insulation effect is poor.

High Barrier EVOH Co-exturded pp sheet material:Technical realization elements:

In view of the poor insulation effect of existing food box made of polypropylene sheet, the purpose of the utility model is to propose a high-barrier PP multi-layer co-extrusion sheet, with the help of the insulation property of the first PP layer, the first adhesive layer and the insulation layer, to improve the insulation effect of high-barrier PP co-extrusion sheet.

The technical purpose High Barrier Co-exturded pp sheet material: of the utility model is realized through the following technical scheme: a high separation PP multi-layer co-extrusion sheets, including the first PP layer, its characteristics is described in the first layer PP side covered with insulation, thermal insulation layer and the first described PP layer between the first bonding layer, as described in the first PP, the first adhesive layer, the ratio of the thickness of the insulation layer for 2:1:4.

By adopting the above technical scheme, the meal box made of the co-extrusion sheet is placed in the meal box, and the meal is insulated through the insulation layer, the first adhesive layer and the first PP layer.In addition, the first adhesive layer is set between the first PP layer and the insulation layer. Before the first PP layer and the insulation layer are squeezed together by co-extrusion, the staff can bond the first PP layer and the insulation layer together through the first adhesive layer.In this way, it greatly facilitates the production of the co-extrusion profile, improves the tightness of the first PP layer and the insulation layer after the co-extrusion, and improves the insulation effect of the co-extrusion sheet.