Lesson4CorrugatedFiberboardBoxes第4课瓦楞纸板箱.pptVIP

Lesson 4 Corrugated Fiberboard Boxes 第4课 瓦楞纸板箱 Historical perspective Corrugated Board Properties and Tests Corrugated Boxes Carrier Rules Stacking and Compression 一. Historical perspective 1. Appearance of corrugated paper and the development First patents for making were recorded in England in 1856. First patents in US were granted to A.L.Jones in 1871 Unlined corrugated sheetpacking lamp chimneys and fragile objects. The first user double-lined corrugated boxes was a cereal manufacturer (obtained acceptance in 1903) Figures reversed from 20% to 80% between the world War I and II 2. The specialized produce Sheet plants buy combined board only printing and cutting. About 770 plants produce more than 17.3 billion worth in America 3. Rules for constructing corrugated containers To enhance the quality Rule of UFC and NMFC 二. Corrugated Board 1. Construction : linerboard and medium Material :heavy paper containerboard Facingskraft linerboard Mediumone-ply sheet, hardwood or recycled fiber 二. Corrugated Board 2 Four types combined board 二. Corrugated Board 二. Corrugated Board 二. Corrugated Board Combined board Different flute profiles combined in one board one layer of medium might be A-flute while the other C-flute Manipulate the compression and cushioning strength, total thickness of the board. 二. Corrugated Board 4 . Fiberboard Grades : Weight ; Thickness ; Material 二. Corrugated Board 二. Corrugated Board 5. Corrugating Adhesive 二. Corrugated Board 二. Corrugated Board 二. Corrugated Board Manufacture: Adhesive On the other side of the medium to glue outer linerboard. Final heating and cooling section Between two long , flat belts. Trimming edges Slit board to required width and length and stack Balanced construction Outer and inner have identical grammage. Upgrading only one liner may gain performance. Unbalan