What is the difference between cold lamination and hot lamination ?
2022-10-24
These two options relate to how the application of plastic to a document is done by the laminating machine. A cold laminator secures documents between sheets of plastic by applying pressure and an adhesive. Some users prefer these machines over hot laminators because they deliver superior quality documents without the hassle of using the heating elements.
Some noteworthy advantages of cold laminators include
.Requires less maintenance and set-up time, inexpensive, and easier to use.
.Solves the problem of unsightly bubbles by the application of pressure.
.The quality and colour of the laminated documents is better in general.
.Excellent option for adhesive decorations and decals because only one side of a graphic can be laminated.
Hot laminators, on the other hand, make use of heat to activate or melt an adhesive material. This type of lamination is generally faster, and provides more durable protection.
Some key points about hot laminators include
.Additional laminating applications including a variety of heat settings.
.Makes use of materials that are less expensive compared to the ones for cold lamination.
.The high heat generated by a hot laminator can damage some materials, inks, and colours. To protect documents from the impact of heat, special plastic laminates can be used.
.It may take some time and experience to master the skill of using a hot laminator successfully. If the users are not careful, the heating elements can cause serious danger to them.
The adhesive on a “hot” laminating film activates when the printed graphic is run through a hot-roll laminator at temperatures between 210 and 240 degrees. Because these high levels of heat can damage some types of inkjet graphics, “low-melt” or “heat-assist” films are also used. “Low melt” films have heat-activated adhesives that can applied at 185 to 195 degrees. “Heat assist” films have pressure-sensitive adhesives (PSAs) and liners and are applied with hot-roll laminators at 185 to 195 degrees.
“Cold” laminating films have a more aggressive adhesive that can be applied with pressure, instead of heat. A release liner protects the adhesive until it ready to applied, typically on a cold-roll laminator. Cold laminating films typically cost more than hot laminating films, but they can be applied using less costly, easier-to-operate non-heated laminators.
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