Food Grade Native Wood Pulp Die-casting Technology For French Fry Boxes: Locking In Crispness And Ensuring Safety

Food grade native wood pulp die-casting technology for french fry boxes: locking in crispness and ensuring safety

In the field of fast food packaging, the material and craftsmanship of the french fry box directly affect the taste and safety of the food. In recent years, food grade native wood pulp die-casting technology has become the core process of high-end french fry boxes due to its environmental friendliness and functionality, bringing consumers a dual experience of "crispy and fresh" and "safe and worry free".

Technical core: Purity and toughness of native wood pulp

This technology uses natural virgin wood pulp as raw material, breaks down wood fibers into a uniform slurry through a hydraulic pulper, and then forms it through high-temperature and high-pressure die-casting. Compared to recycled pulp, native wood pulp has no residual harmful substances such as heavy metals and fluorescent agents, and meets the GB 4806.8 standard for food contact materials. During the die-casting process, the high temperature of 230 ℃ and the pressure of 15 tons tightly bond the fibers, forming a high-strength, hydrophobic and oil resistant box structure, effectively blocking the penetration of oil and avoiding the problem of French fries getting damp caused by traditional paper boxes becoming soft due to oil absorption.

Functional breakthrough: balance between crispy texture and safety protection

Hot air diffusion design: The die-casting process can accurately control the thickness of the box and the structure of the breathable holes, allowing the hot air of the French fries to quickly diffuse and prevent water vapor condensation. For example, a patented French fry box combines a top curved opening with a bottom point cut breathable groove, reducing the humidity inside the box by 40% and increasing the crispness of the fries by 30%.

Construction of safety barrier: The natural antibacterial properties of native wood pulp can inhibit microbial growth, and when combined with the dense fiber layer formed by die-casting, it can effectively block external pollution. A laboratory test showed that the potato chip box produced by this technology, when stored at room temperature for 2 hours, has only 1/5 of the total bacterial count of a regular paper box.

Environmental Value: Sustainable throughout the entire chain from source to end

Native wood pulp is sourced from sustainable forestry resources, and each ton of wood pulp can replace 3 tons of plastic packaging, reducing carbon emissions by 80%. The die-casting process has no chemical adhesives, and the waste box can be 100% biodegradable, returning to natural circulation. After adopting this technology, a fast food brand reduced plastic usage by 200 tons annually, equivalent to protecting 12000 adult trees.

The food grade native wood pulp die-casting technology is based on "natural purity" and achieves the unity of functionality and environmental protection through physical die-casting, becoming a new benchmark for high-end fast food packaging.

Zhejiang Dongou Printing Industry Co.,Ltd, the expert in French fried box production