Halogen-free high-pressure-resistant cushion pad paper and preparation method thereof

By combining phosphorus-containing reinforcing adhesive, tannin elastic adhesive, and inorganic support pulp, the problem of insufficient compression resistance and cushioning performance of existing high-compression-strength cushioning paperboard is solved, achieving better structural integrity and long-term support retention.

CN122446570APending Publication Date: 2026-07-24JIANTAO FOGANG INSULATION MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANTAO FOGANG INSULATION MATERIAL CO LTD
Filing Date
2026-06-15
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing high-compression-strength cushioning paperboards have shortcomings in balancing compression resistance and cushioning performance, especially in high-load packaging applications where structural integrity and long-term support retention are not ideal. Existing solutions are difficult to effectively improve fiber bonding and the synergy of inorganic fillers.

Method used

The composite formulation of phosphorus-containing reinforcing adhesive, tannin elastic adhesive and inorganic support paste is adopted. Through Schiff base bonding, ion association and hydrogen bonding, stable connection is formed inside the fiber network, which enhances the bonding force between fibers and the dispersion support of inorganic phase, providing a continuous load-bearing foundation and local deformation coordination.

Benefits of technology

It improves the compressive strength and cushioning performance of the paper, making it easier for the material to maintain its complete outline and continuous support after being compressed, bent, and hot-pressed. It also suppresses local collapse and edge instability, enhancing the overall integrity and structural stability of the material.

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Abstract

The application discloses a halogen-free high-pressure-resistant cushion pad paper and a preparation method thereof, and belongs to the technical field of pad paper preparation, and is used for solving the technical problem that the pressure resistance and the cushion performance in the prior art need to be further improved; the halogen-free cushion pad paper is constructed by using phosphorus-containing reinforced glue liquid, tannin elastic glue liquid and inorganic support pulp in cooperation, wherein the phosphorus-containing reinforced glue liquid improves the combination between fibers and the overall reinforcing effect, the tannin elastic glue liquid improves the deformation coordination and the elastic and tough response of the material, and the inorganic support pulp strengthens the space support and the structural stability of the paper sheet, so that a composite system with the functions of reinforcing, cushioning and supporting is formed, and the overall structural integrity, the stress coordination and the use stability of the halogen-free cushion pad paper are improved.
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