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US 5,486,436 AGranted
Sealable web or sheet product
AssigneeThe Standard Register Company
InventorA. Dale Lakes
Life of this patent
Estimating the term…
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AssigneeThe Standard Register Company
InventorA. Dale Lakes
Estimating the term…
A web or sheet product is provided which is coated on at least a portion of its surface with a bond-enabling material for adhering toner particles, on the surface of the sheet. The sheet product can be used as a mailer or confidential form which is sealed using toner particles as the adhesive. The bond-enabling material may be a polymer which is coated on the sheet as a liquid and then cured to form a film on the surface of the sheet. The bond-enabling material is resistant to melting or degrading when exposed to temperatures used for fusing toner particles, and additionally may act as a tie coat to enhance the adhesion of toner particles to the surface of the sheet. The bond-enabling material may be coated on the peripheral edges of the sheet, and toner particles are printed over the bond-enabling material on the peripheral edges of the sheet. The sheet is folded and sealed by the application of heat and pressure to the edges of the sheet.
A web or sheet product comprising a substrate having two major surfaces, at least a portion of one or more peripheral edges of one major surface thereof coated with a bond-enabling material for adhering toner particles printed on said one or more peripheral edges on the surface of said sheet, said bond enabling material being resistant to melting or degrading when exposed to temperatures from about 250.degree. F. to above 300.degree. F. used for fusing toner images, and wherein said sheet is folded and sealed along at least one peripheral edge thereof which has been coated with said bond-enabling material and printed with said toner particles.
A web or sheet product comprising a substrate having two major surfaces in which one or more peripheral edges only of one major surface thereof are coated with a bond-enabling material for adhering toner particles printed on said peripheral edges of said sheet, said bond-enabling material being resistant to melting or degrading when exposed to temperatures from about 250.degree. F. to above 300.degree. F. used for fusing toner images.
A web or sheet product comprising a substrate having two major surfaces, at least a portion of one major surface thereof coated with a bond-enabling material for adhering toner particles on the surface of said sheet, said bond enabling material being resistant to melting or degrading when exposed to temperatures from about 250.degree. F. to above 300.degree. F. used for fusing toner images, wherein said bond-enabling material has toner particles printed thereon, and wherein said sheet is sealed to a second sheet having two major surfaces, said second sheet having a coating of said bond-enabling material on at least one portion of one major surface thereof, wherein said second sheet is collated on top of said sheet product such that their respective coated areas are in contact, and wherein said sheets are sealed together at their respective coated areas.
Dependencies are inferred from the claim text.