Method and apparatus for preparing release paper rolls of adhesive insulation material and release paper rolls of adhesive insulation material which are stackable and non-adherent to each other

Abstract

A method and apparatus is disclosed for preparing release paper rolls of adhesive duct insulation material which are stackable and non-adherent to each other. The adhesive insulation material contemplated is the type used for sealing crevices and spaces in air cooling and leaking systems generally referred to as “Heating, Ventilation and Cooling” systems, or “HVAC”. The apparatus and method disclosed dispenses strips ( 16 ) of the adhesive insulation material onto release paper ( 20 ) generally silicone coated on at least one side, leaving a marginal tab ( 30 ) which is then bent upwardly to contact each alternate side face ( 32 ) of the insulation strips ( 16 ) to protect them from adhering to each other when placed in a shipping container. This system thus avoids the need for inserting a sheet of interface paper between the rolls to prevent them from sticking to each other.

1 . A method for preparing release paper rolls of adhesive insulation material, which comprises:
 a) dispensing a sheet of release paper having a release coating on at least one side;   b) simultaneously dispensing a plurality of strips of a relatively soft pliable adhesive duct sealant material onto said release paper;   c) cutting said release paper immediately below and along the same corresponding side of each alternate strip of duct sealant, so as to produce a marginal tab of excess release paper attached to one side of each said adhesive strips;   d) rolling said strips of combined insulation material and release paper into roll form; and   e) cutting said combined strips of insulation material and release paper at a predetermined length so as to produce a roll of predetermined size, while said marginal tabs of release paper become folded to provide an interface for the side surface of each said roll of insulation material; and   f) bringing said rolls of combined insulation material and release paper together so as to contact each other, with each said marginal tab of release paper providing an interface between adjacent rolls of insulation material.   
     
     
         2 . The method according to  claim 1 , further comprising depositing said combined rolls of insulation material and release paper into a container for shipment for use by an end user. 
     
     
         3 . A roll of strips of insulation material on release paper, including a marginal tab of release paper folded upwardly to provide a protective interface for one side surface of said roll of insulation material, such that a plurality of such rolls may be placed in face-to-face contacting relation without fear of said rolls becoming stuck to each other, due to the protective effect of said marginal tab of release paper between adjacent rolls. 
     
     
         4 . Apparatus for producing a roll of combined strips of insulation material and release paper, which comprises:
 a) a dispensing roll for dispensing a continuous sheet of release paper coated on at least one side;   b) a dispensing roll for simultaneously depositing strips of durable insulation material onto said release paper;   c) a plurality of cutting devices for cutting said release paper immediately adjacent each said strip of insulation material to form a marginal tab of release paper associated with each said strip;   d) a guide for folding said marginal tab of each said strip upwardly to contact the same corresponding side surface of each said strip;   e) a device for rolling said combined strips of insulation material and release paper into a roll form; and   f) a device for bringing said combined strips of insulation material and release paper together with an axial direction and for depositing said combined roll into a shipping container.   
     
     
         5 . A roll of strips of insulation material on release paper, each said strip having a marginal tab of release paper folded upwardly on one side to protect said strip from sticking to a next adjacent strip when packaged in a shipping container.