Application characteristics and principle analysis of pre-coated laminating machine
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The pre-coating laminating machine uses the pre-coated peritoneal process for laminating, without gluing and drying. It has short process, compact structure, simple operation, low cost, high production flexibility, solvent-free odor and no environment. Contamination and good film quality are not only suitable for laminating processing of large-volume printed materials, but also suitable for laminating processing of small batches and scattered printed materials such as automated desktop office systems.
Pre-coated laminating machine consists of pre-coated plastic film unwinding, automatic print input, hot-pressing area compounding, automatic winding, four main parts, as well as mechanical transmission, pre-coated plastic film flattening, vertical and horizontal slitting, computer control system And other auxiliary devices. The automatic conveying mechanism can ensure that the printed matter does not overlap in the transmission and enters the composite part equidistantly. Generally, the pneumatic or frictional method is used to realize the control, and the conveying is accurate and the precision is high. When the composite printing medium is small, the above requirements can also be satisfied.
The pre-coating film is a special one in the laminating process. In addition to the many advantages of the laminating process, it also increases the visibility function of the product in the packaging, and the curve is beautifully embedded in the colorful printing pattern. Viewing the window not only makes the packaging more exquisite, but also plays an important role in promoting and beautifying the goods and revealing the value of the goods, and becomes an effective means to realize and enhance the value of the goods. Its laminating principle is different from that of a general laminating machine:
1. It applies a binder to the surface of the film, and then covers the film on the surface of the printed product, and then presses it into a finished product;
2. The special advantage of the pre-coated film is that it can be automatically sprayed and can be automatically de-powdered by heating the viscous dissolving powder of the glue.
The pre-coating process is easy to operate because it does not require a binder heating and drying system. It can be used with the start-up, has great production flexibility, has no solvent smell, no environmental pollution, and more importantly, can completely avoid bubbles and delamination. When the fault occurs, the finished product is extremely transparent.