Self-adhesive trademark laminating machine labels are divided into single-sheet paper laminating and roll material laminating according to the printing and processing methods of raw materials. The sheet of paper is laminated on the laminator. The roll material is compounded on the compounding station of the labeling machine or on a special compounding machine.
        1. Sheet paper laminating
        According to the function of the self-adhesive trademark laminating machine and the characteristics of the composite film, there are two laminating methods for single-sheet self-adhesive labels:
        Instant coating and compounding-finished on the self-adhesive trademark laminating machine. The compounding process is: firstly, the adhesive is coated on the surface of the BOPP film on the roll, and the solvent in the adhesive is volatilized by the drying device, and then the single sheet of paper is compounded with the roll film at the compounding station. The two become one under the squeeze of the roller to complete the coating process.
        Pre-coated film composite-The surface of the composite film is pre-coated with adhesive, and there are two types of films, hot melt adhesive and pressure sensitive. The laminating machine is equipped with a heated embossing roller. When laminating, the pre-coated film is in contact with a single sheet of paper. Under the action of the hot pressing roller, the adhesive melts, so that the film and the paper are bonded together. If a pressure-sensitive composite film is used, the heating power can be turned off, and only pressure is used for composite.
        2. Self-adhesive trademark laminating machine roll paper laminating
        According to the different equipment, roll paper film can be divided into:
        Composite film with bottom paper is used for lamination-on the labeling machine, a special composite film with bottom paper is used, and the film is covered under the action of a composite device. This is a traditional way of laminating. In recent years, it has been replaced by the process of using bottomless paper composite film.
        Bottomless paper composite film lamination-carried out on the labeling machine, the principle of lamination is basically the same as the bottom paper composite film lamination process. The bottomless paper film is rewinded to replace the bottom paper by the surface smoothness (surface tension) of its own material. After the adhesive is bonded to its surface, it can be peeled off without leaving any adhesive marks. The material used in the bottomless paper film is a BOPP film with low surface tension. Bottomless paper film has low cost and is currently the most widely used lamination material.
        Self-adhesive trademark laminating machine dry laminating-on laminating machine or gravure printing machine, mainly used for laminating film materials. The dry laminating film of the roll material is suitable for mass label products, with good film quality and low cost. After the roll label is coated, the secondary processing such as die-cutting and waste discharge is usually carried out on the processing machine, such as some battery labels and wine labels.

        UV coating process-the latest foreign technology, mainly used in the unit type rotary label machine with UV drying device. The process principle is: the surface of the film material is first printed with a UV adhesive by a common printing unit, and the adhesive becomes a pressure-sensitive adhesive after being cured by a UV drying device. Then the ordinary BOPP film (the general composite surface has been corona treated) is compounded with the reel material at the laminating station to complete the laminating process. The cost of UV coating is low, the tension of the composite film is small, no special film is needed, and it is suitable for high-speed production. UV coating is a promising process and has been applied in developed countries in Europe and America.