At present, paper-plastic paper tray products are mainly used in the following aspects: disposable tableware, cushioning packaging of industrial products, disposable tableware, fresh packaging, medical supplies and cosmetics packaging, etc.

The production process

Paper-plastic paper holder is a fiber (wood pulp, bamboo pulp, bagasse pulp, reed pulp, etc.) or secondary fiber as raw material, through the papermaking technology, on the private network mold for compression molding of packaging paper products, compared with traditional foaming plastics, paper plastic molding with raw material sources, the environmental pollution is small, renewable, anti-static, etc.

With the improving of the people consumption concept and the environmental protection idea, packaging industry growing demand for paper plastic molding products, eggs, fruits and other agricultural and sideline products from the beginning of packaging, gradually extended to the electronic products, household appliances, instruments and other high-end product packaging, at first, paper plastic primary color and white is the main color of paper holder paper-plastic products, however, in recent years, People’s requirements for packaging materials are becoming higher and higher, not only reflected in the quality of packaging materials, but also have new requirements for the appearance of color, and has become an important technical index. 1 piano black with its elegant, atmospheric, solemn visual effect, is favored in the packaging of electronic products.

Currently paper-plastic paper holder main USES is within the pulp dyeing, dyeing to join a percentage of dye after the beating, make the fiber with a certain color, then forming, pressing, drying and so on a series of operations, so as to produce paper plastic molding products, with a particular colour but, because of the large products at high, thickness uneven dyeing add dye when contact with the slurry, And the beating degree of pulp can not be too high dyeing uniformity and color saturation usually can not meet the requirements, so the paper study using the method of paper, explore the influence of dye and fiber co-grinding on the dyeing effect and strength properties of dyeing products, and put forward to improve the process.