What are the surface treatment processes for disposable paddy fiber cutlery

Mechanical polishing technology is widely used to improve the flatness of disposable paddy fiber cutlery surfaces and effectively remove tiny burrs generated during the molding process. This process uses a high-speed rotating grinding wheel or polishing cloth to rub the disposable paddy fiber cutlery surface to significantly improve the surface smoothness and make the disposable paddy fiber cutlery color more uniform. In this way, the risk of cutting users' hands by tiny edges and corners can be effectively reduced. However, the control of processing intensity is crucial, and excessive processing may lead to the weakening of the overall strength of the disposable paddy fiber cutlery or the destruction of the natural texture.

As an advanced secondary molding process, hot pressing and shaping promotes the closure of surface pores and the improvement of compaction by flattening and re-pressing the disposable paddy fiber cutlery at a specific temperature. This process not only enhances the density of the disposable paddy fiber cutlery, but also improves the visual uniformity, which is especially suitable for application scenarios with high requirements for high-end visual texture. The implementation of hot pressing and shaping technology requires high-precision equipment to ensure accurate control of temperature and pressure to achieve the best processing effect.

The natural polishing process is mainly used in the manual optimization stage of mid-to-high-end disposable paddy fiber cutlerys. This process uses fine abrasives to evenly act on the surface of the disposable paddy fiber cutlery at a low speed, aiming to preserve the natural texture of the rice husk, while removing the mottled spots and local color differences on the surface, and enhancing the original appearance of the disposable paddy fiber cutlery. In the context of further improvement in disposable paddy fiber cutlery functionality, spray coating technology has gradually become an important means to improve the disposable paddy fiber cutlery's water resistance, oil resistance, heat resistance and antibacterial ability. The coating materials used are mainly natural sources, such as plant wax, chitosan and polylactic acid micro-coatings, which are not only biodegradable, but also meet food contact safety standards. The coating process is usually covered with a thin layer through an automated spraying system to ensure uniform coating and rapid drying without affecting the disposable paddy fiber cutlery's degradable properties. For customized or small batch orders, some manufacturers also use manual spraying, although the disposable paddy fiber cutleryion efficiency is relatively low.

Film lamination technology is a surface treatment method that efficiently improves the functionality and aesthetics of disposable paddy fiber cutlerys. This technology mainly forms a dense protective layer by thermally laminating PLA film or other bio-based films to the surface of the disposable paddy fiber cutlery, giving the disposable paddy fiber cutlery excellent permeability resistance and heat sealing properties, while improving gloss and color uniformity. This process requires high precision of the equipment and precise control of temperature, pressure and film tension to prevent quality problems such as blistering, delamination or slippage.