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A pouch laminator uses a lamination pouch that is usually sealed on one side. The inside of the lamination pouch is coated with a heat-activated film that adheres to the product being laminated as it runs through the laminator. The substrate side of the board contains a heat-activated adhesive that bonds the print to the substrate.
This can be any of a number of board products or another sheet of laminate. The pouch containing the print, laminate, and substrate is passed through a set of heated rollers under pressure, ensuring that all adhesive layers bond to one another.
Pouch laminators are designed for moderate use in the office or home. For continuous, large-volume lamination projects, a roll laminator performs more efficiently.
Pouches can be bought with different thicknesses in micrometres. Standard home or office machines normally use 80–250 micrometre pouches, depending on the quality of the machine. The thicker the pouch, the higher the cost. Pouches can also measured in mil, which equals one thousandth of an inch