English
中文简体Injection molding process
Injection molding is one of the most widely used processes in the production of plastic disposable tableware. Its basic principle is to heat and melt the plastic particles, inject them into the mold cavity under high pressure, and then cool and solidify them into shape.
The injection molding process is suitable for the production of tableware with complex structures and various shapes, such as plastic knives and forks, spoons and spoons. The injection molding equipment has a high degree of automation, high production efficiency, high precision of finished products, and a smooth surface, which can meet the needs of a large number of standardized production.
Different plastic materials (such as polypropylene PP and polystyrene PS) can be processed by injection molding to meet the heat resistance and strength requirements of different usage scenarios. The injection molding process performs well in saving materials and reducing waste, and it is easy to achieve multi-color and multi-style designs.
Hot pressing molding process
Hot pressing molding is mainly used to produce paper and plant fiber disposable tableware, such as paper plates, paper bowls, bamboo pulp tableware, etc. This process places pre-processed pulp or fiber materials in a mold, and forms and dries the materials by heating and pressure.
The hot pressing process has a fast molding speed and is suitable for mass production. The finished product has a tough texture and can be treated with an oil-proof and waterproof coating on the surface to meet different catering needs. The hot pressing molded paper tableware has good environmental performance and is easy to degrade and recycle.
This process is particularly popular in the environmentally friendly tableware market. With the promotion of bio-based materials, hot pressing molding technology continues to innovate to improve the durability and aesthetics of the product.
Extrusion molding process
Extrusion molding is mostly used in the production of disposable straws and some film tableware. The process flow is that the plastic particles are heated and melted in the extruder, continuously extruded and molded, and then cooled and shaped.
The extrusion process is suitable for the production of tubular and long tableware parts, with extremely high production efficiency, low equipment investment, and easy to achieve automation and continuous production. This process can accurately control the size and wall thickness of the product to ensure the performance of products such as straws.
With the improvement of environmental protection requirements, the application of biodegradable materials such as PLA in the extrusion process has gradually increased, providing a sustainable development solution for products such as disposable straws.
Die-cutting process
Die-cutting is mainly used for the production of paper disposable tableware, such as paper cup lids, paper trays and other flat or simple curved products. The cardboard material is cut and indented according to the mold contour by a die-cutting machine to facilitate subsequent folding or assembly.
The die-cutting process is simple and efficient, suitable for materials such as thin cardboard and corrugated paper, and can achieve rapid mass production. The edges of the die-cut products are neat and the dimensions are precise, ensuring the sealing and bearing capacity of the products.
This process is usually combined with hot pressing or gluing processes to improve the stability and performance of the finished products, and is an important part of the manufacture of paper disposable tableware.
Biodegradable material molding process
With the improvement of environmental awareness, biodegradable disposable tableware has become a new market trend. Such products mostly use bio-based materials such as PLA (polylactic acid), PHA (polyhydroxyalkanoate), and starch-based materials.
The production process of biodegradable materials combines traditional processes such as injection molding, extrusion and hot pressing, and optimizes the material properties. For example, the PLA injection molding process requires control of temperature and cooling rate to prevent material degradation from affecting product quality.
The molding process of biodegradable tableware emphasizes the balance between the environmental performance and mechanical properties of the material, ensuring the stability of the product during use and its environmental friendliness after degradation.
