High-strength multi-layer composite corrugated paperboard and preparation method thereof

• Main Authors: LIN WEI, XU CHENMING, YU ZHOUTAO, YU JIAFENG, LIN HAIDONG
• Format: Patent
• Language: Chinese; English
• Published: 27.11.2020
• Subjects: IMPREGNATING OR COATING OF PAPER; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNERANALOGOUS TO PAPER; MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN AMANNER ANALOGOUS TO PAPER; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PERFORMING OPERATIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; TEXTILES; TRANSPORTING; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUSTO PAPER

The invention discloses a high-strength multi-layer composite corrugated paperboard and a preparation method thereof. The high-strength multi-layer composite corrugated paperboard comprises an inner paperboard layer and an outer paperboard layer, and a second composite reinforcing layer, a second buffer layer, a first composite reinforcing layer, a first buffer layer and a flame-retardant layer are sequentially bonded from top to bottom from the inner paperboard layer to the outer paperboard layer. According to the invention, two layers of composite reinforcing cores formed by composite weaving of high-strength plant fibers are arranged in an overlapping and seamless manner, so that the overall strength of the corrugated paperboard can be enhanced to the greatest extent; according to the high stability of a triangular shape, the overall strength of the corrugated paperboard can be further enhanced through the multiple reinforcing layers composed of the V-shaped corrugated paper; and sleeve springs are install