A low grammage paper-based fruit cushion material and a method of making the same

By using precise humidity conditioning and gradient pressing processes with low-grammage paper-based materials, a paper-based fruit cushioning pad with excellent folding strength and cushioning performance was prepared. This solved the problems of environmental protection and automation adaptation in existing technologies, and achieved low-cost and high-efficiency cushioning.

CN122425932APending Publication Date: 2026-07-21HOHHOT ZHONGSHIDA PACKAGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HOHHOT ZHONGSHIDA PACKAGING CO LTD
Filing Date
2026-06-01
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing fruit packaging cushioning materials suffer from environmental pollution, high raw material costs, high production energy consumption, unstable cushioning effect, and difficulty in adapting to automated equipment.

Method used

Using low-grammage paper-based materials, a composite paper blank is formed through precise humidity control and gradient pressing processes. After molding and shaping, it is naturally dried to prepare a paper-based fruit cushioning pad with a concave-convex cushioning structure.

Benefits of technology

It significantly improves the folding strength and cushioning performance of paper-based materials, reduces raw material costs, enhances product stability and automation adaptability, and meets environmental protection requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the processing technology field of fresh food packaging, in particular to a low-grammage paper-based fruit cushion material and a preparation method thereof. The preparation method comprises the following steps: taking a plurality of low-grammage papers, coating the papers with food-grade adhesive, and then preliminarily pressing to obtain a composite paper blank; the paper blank is subjected to moisture conditioning treatment to control the water content at 12%-15%; the paper blank after moisture conditioning is subjected to multiple pressing in sequence, and the pressing pressure is distributed in a gradient distribution mode of first increasing and then decreasing; the paper blank after pressing is placed in a concave-convex mold for mold pressing and shaping; the blank is cut and naturally dried, and the water content of the finished product is maintained at 6%-8%. Through the synergistic effect of precise water content regulation and gradient pressing process, the folding strength of the product is increased by 25%-50% compared with the original paper, and the product can be used as an environmentally-friendly alternative packaging piece of foamed plastic net cover.
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