Carbonless cardstock uses a chemical reaction in between two diverse contacting coatings to transfer an image when stress is applied. A cardstock which is most often employed for multiple part forms, it contains a chemical coating on the front side (designated as CF) or around the back side (designated as CB), or on both sides (designated as CFB). When a handwritten or machine impression occurs about the first sheet of multiple parts, the impression transfers from 1 page or ply for the next as a result of the bursting of tiny microcapsules in the chemical coating utilized to release a darkened copy with the impression occurring on the initial sheet.
A approach and apparatus are provided for creating a foam wrapped package for protecting a roll of pressure-sensitive carbonless copy paper. Interleaved foam and film are wrapped under tension around the outer periphery of the roll of carbonless paper by selectively rotating the roll and separately feeding packaging foam and stretch film toward the rotating roll.
The present invention relates to some process for producing a foam wrap package, and, a lot more particularly, to some method for wrapping and guarding a roll of pressure-sensitive carbonless copy paper by simultaneously wrapping interleaved layers of stretch film and packaging foam onto the roll of carbonless paper.
Heretofore, stretch wrapping machinery manufacturers have marketed equipment which combines spiral wrapping of stretch film with limited non-spiral wrapping of your single face corrugated medium or perhaps a kraft wrap. Traditionally, machines have been developed which offer foam wrap in 1 operation and then kraft wrap in a second operation, and have necessary a substantial quantity with the wrapping method to be performed by hand.
Problems have occurred inside the prior art with the existing foam/kraft packages. Specifically, these packages utilizing kraft wrap cannot apply foam more than the edge of your roll of pressure-sensitive carbonless cardstock without creating a bulky edge that makes roll stacking hard. The absence of foam above the edge from the roll of carbonless paper leaves the roll subject to edge damage. Prior to this time a sufficient wrapping procedure or a final wrapped package has not been achieved within the art which would require only a relatively limited capital price and generate a resultant packaged item which is effortless to handle.