1. Pulping-pulping-pulping
Using reeds, straw husks, sugarcane, wheat straw, bamboo, wood, and recycled paper as raw materials, after crushing, grinding and other processes, they become fibers suspended in water. According to the characteristics of the final product, the fiber length and concentration of the original pulp can be controlled during the pulping process. Add functional additives (brightening agents, waterproofing agents, etc.) and dyes, and perform a series of auxiliary operations to form pulp that meets the production needs.
Equipment: pulper, slurry tank, slurry tank, etc.
2. Molding process
The molding process of pulp molded products is mainly through a series of methods such as vacuum molding and grouting molding, so that the raw pulp fibers are formed into the shape designed by the mold, and the vacuum molding is the most commonly used and the most effective one.
Equipment: Forming machine
3. Drying process
The drying process mainly uses fuel, oil, gas, electricity or steam, heat transfer oil or other media as a heat source, heating air, drying the molded pulp molded products in the hot air, and extracting evaporated water from the products through a fan. Accelerate the drying effect.
Equipment: Dryer
4. Shaping and trimming process
After the pulp product is shaped and dried, it is basically shaped, and then the heating plate is heated with an electric heating plate or other heat medium (such as heat transfer oil) to make the pulp product mold have a higher temperature (150-250°C), and then use air pressure or hydraulic pressure The paper support product is pressed under high temperature and high pressure to make the product appearance neat and beautiful, achieve better toughness, and make it have better shockproof performance.
Equipment: shaping and trimming machine
5. Packing
Finally, the products produced through a series of processes will be inspected, packaged and stored. According to the characteristics of different products, manual packaging or automatic packaging machines can be used for counting and packaging.
