Ultraviolet (UV) heat-activated laminating adhesive for an inkjet printing process
Apparatus, compositions, and systems for ultraviolet (UV) heat-activated laminating adhesives applied via an inkjet printing process are disclosed. A system includes a first inkjet mechanism configured to deposit ink in a particular pattern onto a surface of a rigid medium. A second inkjet mechanism is configured to deposit a laminating adhesive onto the particular pattern printed on the surface of the rigid medium. A pair of stainless steel plates is configured to receive an overlay film layer and the laminating adhesive deposited onto the particular pattern printed on the surface of the rigid medium. The overlay film layer is positioned such that a surface of the overlay film layer faces the laminating adhesive. Pressure and heat are applied to the overlay film layer and the laminating adhesive to laminate the particular pattern printed on the surface of the rigid medium.
1. A method comprising:
disposing, by an inkjet mechanism of a laminating system, a laminating adhesive onto a particular pattern printed on a surface of a rigid medium;
curing, by an ultraviolet (UV) light source of the laminating system, the laminating adhesive;
positioning, by the laminating system, an overlay film layer such that a surface of the overlay film layer faces the laminating adhesive;
applying, by a pair of stainless steel plates of the laminating system, heat to the laminating adhesive; and
applying, by the pair of stainless steel plates of the laminating system, pressure to the overlay film layer, the laminating adhesive, and the rigid medium to laminate the overlay film layer onto the particular pattern printed on the surface of the rigid medium.
2. The method of claim 1 , wherein the pressure is in a range from 1000 to 1800 pound-force (lbf), and wherein the pressure is applied for two to four minutes.
3. The method of claim 1 , further comprising cooling, by the laminating system, the rigid medium for twenty-four to thirty-six hours after applying the pressure.
4. The method of claim 1 , further comprising creating, by the laminating system, a bond between the overlay film layer and the rigid medium using the laminating adhesive, the bond having a peel strength greater than 7 lbf or 31.1376 newtons (n).
5. The method of claim 1 , wherein curing the laminating adhesive comprises radiating the laminating adhesive using UV radiation of subtype A (UVA) having a wavelength in a range of 320 to 400 nanometers (nm), wherein the laminating adhesive comprises Norrish Type 1.
6. The method of claim 1 , wherein the laminating adhesive comprises at least one of a polymer, a C9 hydrocarbon resin, or a triblock co-polymer based on styrene ethylene butylene (SEB).