Comprehensive analysis of pulp molding work package products

Pulp molding package products are industrial packaging products made of plant fibers or recycled pulp by compression molding technology, which are both environmentally friendly and functional. The following is a systematic introduction of material technology, product classification, core advantages and typical applications:

I. Materials and Manufacturing Technology

Raw material selection

Waste paper pulp (such as waste paper box and white paper) is mainly used to realize the recycling of resources.

Some products are added with rosin, paraffin emulsion and other waterproof and oil-proof agents, or antibacterial agents to enhance functionality.

process flow

Pulping: after the waste paper is broken, the pulp concentration and performance are adjusted, and the waterproof property is improved by sizing process.

Molding: vacuum adsorption, grouting molding and other technologies are used to shape the three-dimensional structure, and the density and strength of the product are controlled by wet pressing/dry pressing process.

Post-treatment: after drying and shaping, trimming and disinfection, some high-end products are subjected to surface calendering or antistatic treatment.

Second, product classification and functional characteristics

Classification by purpose

Cushion packaging: such as shock-proof lining of electronic products and tray of precision instruments, which absorbs impact through honeycomb structure.

Storage and transportation containers: such as egg trays and fruit and vegetable trays, the grooves are designed to fix the goods and are breathable and moisture-proof.

Customized packaging: such as wine gift boxes and cosmetic boxes, can be combined with brand logo to achieve high-end display.

Core performance advantages

Environmental protection: it can be completely degraded (naturally decomposed in 45-90 days), supporting recycling and regeneration, and there is no wastewater discharge during production.

Economy: the cost of raw materials is lower than that of plastic foam, and the storage and transportation volume is small (it can be stacked to save 50% space).

Functionality: It has the characteristics of shockproof, cushioning, air permeability, mildew resistance, antibacterial and bacteriostatic, and is suitable for different industry needs.

Third, typical application scenarios

Electronic product field

Used for anti-static packaging of mobile phones, computers and other precision components to avoid damage caused by friction during transportation.

Case: The cooling bracket of a brand notebook computer is molded with bamboo pulp, which has both buffering and cooling functions.

Food and fresh food field

Antibacterial pulp tray can inhibit microbial growth, extend the shelf life of fresh food and reduce loss.

Case: Strawberry ecological gift box is molded and packaged with sugarcane pulp and lined with degradable corn fiber.

Medical and industrial fields

Disposable medical instrument trays meet aseptic requirements and reduce the risk of cross-infection.

The packaging of heavy mechanical parts is designed by multi-layer structure, and the load-bearing capacity can reach more than 50kg.

Fourth, the development trend

technical innovation

Develop composite functional materials, such as antibacterial, moisture-proof, flame-retardant and high-temperature resistant pulp molding, and expand high-end fields such as aerospace.

Intelligent direction: embedded sensor to realize packaging state monitoring (such as temperature and humidity prompt).

Policy and market

The global plastic ban has promoted pulp molding to replace plastic packaging, and it is estimated that the market scale will increase by over 15% annually in the next five years.

Through the combination of green materials and precision technology, pulp molding package products are gradually becoming the mainstream choice of industrial packaging, and the continuous expansion of its application scenarios will accelerate the iterative upgrading of traditional packaging materials.