How to check the lamination before operation of the laminating machine
1. Tear off one corner of the laminated proof sheet in the width direction, hold down the paper, and cover the entire width direction. After tearing, after tearing off all of them, if the prints on the surface of the printed matter are transferred to the film along with the adhesive layer and the fibers of the paper, it means that the printed matter and the film are well bonded, and it is a qualified product.
2. Put the coated samples into the drying tunnel, bake at 60~65 degrees Celsius for about 30 minutes, if there is no foaming, no delamination, no wrinkles, it is a qualified product. After baking, the peeling film should not be separated from the paper perfectly.
3. Soak the sample in cold water for 1 hour and then take it out. If the plastic film does not separate from the printed matter, it is a qualified product.
4. Put the sample on the indenter to apply pressure, if the concave and convex parts extruded do not delaminate, it is a qualified product. After the coated samples pass one or more inspection methods and meet the requirements, they can be put into mass production. If it does not meet the requirements and the sample is unqualified, the process must be adjusted and re-tested until it passes the inspection.
Operation process of laminating machine equipment
Laminating machine lamination is divided into two categories according to different equipment and processes, one is “instant coating” Film”, the other is “pre-coating film”, which is divided into two kinds of film and sub-film. The lamination process refers to the whole process of laminating pictures, papers, photos, etc. The lamination products have high anti-corrosion, waterproof, dust-proof, anti-wrinkle and anti-ultraviolet corrosion properties, which can produce a strong three-dimensional sense and artistic appeal. . Let’s take a look at the operation process of the laminating machine equipment:
1. The coating laminating machine
The coating is a kind of utilization That is, the film coating machine immediately sticks the film with the glue to carry out the paper-plastic composite process. It is mainly produced by the coating film processing factory or processing workshop. According to the needs, the roll plastic film is coated with adhesive, then dried (slightly) compounded, and the paper film is adhered together to form a film-coated product after being pressed. That is, there are two types of coating equipment, automatic and semi-automatic. The basic working principle is the same. The process flow mainly includes unwinding → gluing coating → drying → compounding → slitting → finished product accumulation.
2. Pre-coating laminating machine
Pre-coating is a kind of pre-coated plastic film, which is pre-rolled with adhesive film cloth, and then processed with The process of compounding paper prints. The pre-coating film is made by the pre-coating film processing factory according to the different specifications and formats used, and the glue is first coated and rewinded for the user to choose, and then compounded with the printed paper. There are three types of pre-coating films: instant film, pressure-sensitive film and special film. The process flow is mainly pre-gluing→rolling→gluing coating (hanging cheap type)→curing and cooling→rewinding→slitting→recovery Roll → finished packaging. Pre-coating machine: temperature adjustment → winding → paper feeding → heating → compounding → slitting → automatic stacking → finished product.
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