Composite corrugated cardboard
A corrugated cardboard and corrugated technology, applied in the direction of paper/cardboard layered products, chemical instruments and methods, layered products, etc., can solve the problems of affecting the safety of packaging, reducing the overall strength of corrugated cardboard, poor structural strength of cardboard, etc.
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[0028] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0029] A composite corrugated cardboard, such as figure 1 and figure 2 Said comprises a face paper layer 1, a corrugated core layer 2 and an inner paper layer 3, the inner paper layer 3 is located inside the corrugated core layer 2, the face paper layer 1 is located outside the corrugated core layer 2, and the corrugated core layer 2 includes a plurality of glue The support paper block 4 glued between the inner paper layer 3 and the surface paper layer 1, the area between the support paper blocks 4 is formed with a supplementary channel 5, and the supplementary channel 5 is in the form of a net between the surface paper layer 1 and the inner paper layer 3 lattice. A slidable supplementary paper block 6 is placed in the supplementary channel 5 , and the supplementary paper block 6 fills the area between the supporting paper blocks 4 .
[0030] The ...
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