Laminating is to bond the plastic film coated with the adhesive to the paper print after heating and pressing to form a paper-plastic product. It is one of the common post-printing processes of paper prints. The printed product after the film is covered with a thin and transparent plastic film, the surface is smoother and brighter, which not only improves the gloss and fastness of the printed product, but also extends the service life of the printed product. At the same time, the plastic film is waterproof and Antifouling, abrasion resistance, folding resistance, chemical corrosion resistance and other protection. If a transparent bright film coating is used, the printed graphics of the coated product are more vivid and full of three-dimensional sense, which is especially suitable for the packaging of green food and other commodities, which can arouse people's appetite and consumption desire. If the matte thin film is used, the coated product will give consumers a noble and elegant feeling. Therefore, the packaged printed matter after film coating can significantly improve the grade and added value of the product packaging. At present, common film packaging products include cartons, cartons, handbags, fertilizer bags, seed bags, stickers, etc.

According to the coating process of paper prints, the coating process can be divided into three categories: dry coating method, wet coating method and pre-coating film method.

The dry laminating method is currently the most commonly used laminating method in China. It is to coat a layer of adhesive on the plastic film, then evaporate and remove the solvent in the adhesive through the drying oven of the laminating machine to dry, and then heat Under pressure, it will be bonded with paper print to form a film product.

The wet lamination method is to coat a layer of adhesive on the surface of the plastic film. When the adhesive is not dry, the lamination product is bonded to the paper printed matter through the pressing roller. Since the advent of the water-based laminating machine, the water-based laminating process has been promoted and applied, which is simple in operation with the wet laminating process, the amount of adhesive is small, does not contain organic solvents that damage the environment, and the laminated printed matter has high strength, High-grade, easy to recycle and other characteristics are inseparable. At present, this laminating process is increasingly favored by domestic packaging manufacturers, and has been widely used in packaging such as gift boxes and handbags.

The pre-coated film method is that the film manufacturer directly purchases the plastic film pre-coated with the adhesive. When the film is required, the film and the paper printed matter are hot pressed on the film coating equipment to complete the film coating process. The process of pre-coating film began in the 1990s. Through special equipment, the hot-melt adhesive or low-temperature resin was quantitatively and uniformly coated on the film substrate according to the design, and the pre-coated film was obtained. The pre-coated film method eliminates the preparation, coating and drying of adhesives. The entire film coating process can be completed in a few seconds, no pollution to the environment, no fire hazard, and no need to clean the coating Glue equipment, etc. At present, the process has been used in the field of medicine and food packaging.

Disposable Fork

Disposable Forks,Disposable Wooden Fork,Disposable Flatware Wooden Fork,Flatware Wooden Fork

Dalian Yongtailong Wood Industry Co.,Ltd , https://www.ytldisposablegoods.com