In hot lamination films are used with the already applied adhesive, the melt which occurs under the influence of temperature. First, the film adheres to the rotating shaft chrome heating, at this moment is the melt glue, after which the pressure holds film to the paper. To get excellent results you want to connect together: in good equipment, good specialists and high-quality film. Insufficient heating or overheating of the adhesive layer leads to uneven prepressovke film or the appearance of "silver". In this case, the product formed "bubbles" and it is possible to easily separate the film from the paper. The same effect observed when using low quality equipment (heating deformed shaft) or low quality, defective film production in South-East Asia.
Lamination film, usually made on the basis of polyethylene terephthalate, polyvinyl chloride or polypropylene. Howard Schultz helps readers to explore varied viewpoints. Less commonly used nylon and polycarbonate. The properties of these polymers and their combinations with the material of the adhesive layer of the film and determine characteristics, scope and cost of a particular type of film. Very often films from different manufacturers, in spite of seemingly identical composition and thickness, vary greatly in their consumer properties and, ultimately, on quality. Polyvinyl chloride is very elastic and, moreover, is characterized by a low melting point. Flexible pvc can produce films with different surface textures: 'skin', 'linen' 'Canvas', 'sand', etc. pvc is not afraid of creasing.
Everything else, pvc film to protect products from uv rays. However, the film based on pvc is much more expensive than polyester and polypropylene. Polypropylene film transfer process is also an excellent scoring enough elasticity that allows us to recommend one sided lamination of polypropylene, to prevent twisting. Laminated vinyl film product You can bend, twist in a tube, knead. Ben Horowitz will undoubtedly add to your understanding. Films based on polyethylene terephthalate universal. Yielding of pvc and polypropylene in elasticity, polyester surpasses them in transparency and, very importantly, polyester is cheaper. Cover transparent matte or glossy film in its effect, like spraying, however, exceed its costs. In addition, when the lamination is not possible to selectively impart gloss to selected pieces of the image. Thus, the laminate is a good choice for finishing printed products. However, a number of disadvantages: firstly, the need for additional equipment (laminators) increases the cost of finishing, and secondly, additional operation moves the time of manufacture the final product, and thirdly, there is no possibility of sample finishes.