Ultra-thin corrugated cardboard

The ultra-thin corrugated paperboard includes E corrugated, F corrugated, and G corrugated, which has become a revolutionary product in the corrugated board industry. In 1998, the output value of ultra-thin corrugated board accounted for about 8% of the total output value of corrugated board. It is expected that it will continue to grow in the next five years. In particular, G-Watt will replace 10% of the market for thick cardboard (such as gray-white paper) in the next five years. In particular, cartons exceeding 400 g/m2 will be replaced by ultra-thin corrugated cardboard.

In 1998, there were 30 G-type corrugating rollers in Europe and 25 in the United States. In 1999, another 50 G-type corrugating rollers were installed one after another. When producing ultra-thin corrugated cardboard with a conventional corrugated board production line, the following factors should be taken into account:

Raw paper force control

Stable and high-speed take-up machine

Dual original paper force control system

Glue and glue equipment

(a) The formulation of the glue should be suitable for high speed car ultra-thin corrugated board light weight heavy plate wide web use.

(b) The gap between the corrugating roll and the top roll must be controlled to 0.01 mm. The pressure shoe roll (glue) clearance adjustment system should be considered.

Bridge tension control

(a) It is better to use the flyover guide of German EL Company and the tension control system of BHS.

(b) Low basis weight paper is suitable for production of ultra-thin corrugated cardboard.

Double Tile Machine: Thermal Control #0; BHS Bartrol Double Tile Machine

(a) Heating plate area: The reason for most of the paperboard bending is temperature, and the gravity roller needs to be automatically adjusted according to the paper width and production speed.
(b) Cooling zone: pressure plate type.

Cross cutter: The ability to cut in short sizes, 245mm/min. (500mm long)

Base paper:

(a) light-based heavy paper, face paper 80 ~ 135g/m2;

(b) Average moisture control and base paper thickness control;

How to prevent cardboard from bending back

(a) Tension

(b) Heating control

(c) glue control

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