Partially Opaque-Partially Clear Laminate Tubes and Methods

Abstract

The present relates a laminate comprising: an outer polyethylene (PE) layer; a first adhesive layer; a substrate layer with one side selectively vacuum metalized or selectively reverse printed and said printed or metalized side is toward first adhesive layer; a second adhesive layer; an ethylene vinyl alcohol (EVOH) polymer barrier film layer; an linear density polyethylene (LDPE) extrusion layer; and an inner polyethylene (PE) layer. The present disclosure further relates to tubes made of the partially opaque and partially clear laminate. The present disclosure also relates to a process of manufacturing of tubes using the said laminate.

What is claimed: 
     
         1 . A tube or laminate tube comprising a laminate of an outer polyethylene layer wherein the outer polyethylene layer is a three layer film comprising: 48.0%-48.5% metallocene linear low density polyethylene (LLDPE); 48.0%-48.5% low density polyethylene (LDPE); and 3.0%-4% of a clarifier; a first adhesive layer; a substrate layer with one side selectively vacuum metalized or selectively reverse printed and said printed or metalized side faces toward the adhesive layer; a second adhesive layer; and ethylene vinyl alcohol (EVOH) polymer barrier film layer; a low density polyethylene (LDPE) extrusion layer and an inner polyethylene (PE) layer. 
     
     
         2 . A process of manufacturing the laminate tube as claimed in  claim 1 , said process comprising:
 providing the substrate layer;   selectively gravure printing or vacuum metalized to the substrate layer using a suitable ink;   applying adhesive lamination on both sides of the substrate layer;   coating the substrate layer with ethylene vinyl alcohol (EVOH) barrier film;   coating print side of the substrate layer with polyethylene (PE) film;   extruding polyethylene (PE) film by extrusion lamination;   coating the product facing side with polyethylene (PE) film;   forming a partially opaque and a partially clear laminate;   slitting rolls of partially opaque and a partially clear laminate by slitting process; printing of the rolls; and   forming a partially opaque and a partially clear laminated tubes by tubing process.   
     
     
         3 . The process as claimed in  claim 2 , wherein the substrate layer is selected from polyethylene terephthalate polymer (PET), nylon, biaxially oriented film (BOPP) or Polyethylene (PE). 
     
     
         4 . The process as claimed in  claim 2  wherein the polyethylene (PE) film that forms the outer layer is surface printed.