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Corrugated cardboard structure
2018-05-08

Top paper, also known as surface paper, which is fed by the nearest mill roll stand to second time glue machine on corrugated cardboard machine, is the top surface layer of corrugated cardboard, which weight density is usually from 125~310g/m2;

Core paper, also known as flute paper, which weight density is usually 105~115g/2, 125g/m2, 150g/m2, and on corrugated cardboard machinery, it’s formed into flute wave shape by Single Facer;

Bottom paper, also known as inner paper, which is the bottom layer of cardboard, and for corrugated cardboard machine operator, it’s common to use the same weight of paper as top paper;

Liner paper is the middle layer in the 5 layer cardboard;



 

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