Processing technique for high-strength corrugated board

Abstract

The invention discloses a processing technique for a high-strength corrugated board. A corrugated board produced through the processing technique comprises at least five layers of structures; and a high-strength corrugated board with seven layers as well as a higher-strength corrugated board with more layers can be processed very reliably through the processing technique. The processing technique comprises the following steps: (1) mounting winding drums for lining paper, surface paper and corrugating medium on an automatic paper feeding rack; (2) preheating the lining paper, surface paper and corrugating medium through a preheater; (3) corrugating the corrugating medium through a single-side machine and gluing the corrugating medium to each group of surface paper to form single-side corrugated paper; (4) feeding the single-side corrugated paper into an overbridge conveyer and conveying the lining paper and the single-side corrugated paper to a multigang preheater; (5) preheating the lining paper again, then arranging the lining paper and the single-side corrugated paper to form at least five layers of corrugated paper, meanwhile feeding the corrugated paper into a glue spreader to spread glue on corrugation tops, and gluing the multiple layers of corrugated paper; (6) drying the multilayer corrugated paper on a hot plate; and (7) shaping the multilayer corrugated paper by cooling to obtain the high-strength corrugated board.

Description

technical field [0001] The invention relates to a processing technology of cardboard, in particular to a processing technology of high-strength multi-layer corrugated cardboard. Background technique [0002] Under the consensus of the international community to protect forest resources and protect the ecological environment, wood substitute packaging will become an inevitable trend in the development of the packaging industry at home and abroad; in wood substitute packaging, due to the high strength, light weight, and foldable packaging boxes of heavy corrugated cardboard, Save storage space; the volume is reduced by 20% compared with wooden boxes; fumigation-free, convenient for export, low cost and other advantages; therefore, the use and development prospects of heavy-duty corrugated cardboard packaging are very broad; [0003] In order to achieve the high-strength performance of heavy-duty corrugated cardboard, many methods are currently used; for example, adding load-be...

AI Technical Summary

Problems solved by technology

[0003] In order to achieve the high-strength performance of heavy-duty corrugated cardboard, many methods are currently used; for example, adding load-bearing objects to the carton structure; but the recognized and effective way to enhance the strength of corrugated cardboard is to increase the number of layers of corrugated cardboard; Most of the processing methods of multi-layer corrugated cardboard follow the method of traditional multi-layer cartons; with the increase of the number of corrugated cardboard layers and its own weight, the processing method cannot guarantee the quality of corrugated cardboard; therefore, a complete set of suitable for production is designed. The processing technology of multi-layer high-light corrugated cardboard is very necessary

Images