Several methods to increase the folding resistance of corrugated carton

Under the premise of guaranteeing the adhesive strength of the board, the steam pressure should be reduced as much as possible, and the steam pressure can be reduced from the usual 9~11kgf/cm2 to 7~8kgf/cm2. In this way, the surface temperature of the heating element such as the preheating cylinder can be reduced, the water loss of the corrugated cardboard during the production process can be reduced, and the folding resistance of the cardboard can be improved.


Reduce the heating of the board during the production process. For a single-sided unit, the intake valve of the preheated cylinder and the preheated cylinder on the single-sided machine can be properly closed according to the specific conditions of the base paper to reduce the intake air amount. For a double-sided machine, the intake valve of part of the hot plate may be closed or the amount of intake air of the hot plate may be reduced, and the height of the gravity roller of the hot plate of the double-sided machine may also be appropriately increased.


In the case of ensuring the normal adhesion of single-sided corrugated cardboard, the sizing amount of the single-sided machine and the steam spray of the core paper should be appropriately increased.


Increasing the running speed of the double-sided machine and reducing the running time of the cardboard in the double-sided machine can also reduce the heating amount of the cardboard, reduce the loss of moisture, and improve the folding-resistant degree of the cardboard.


Spraying: Spraying device is installed between triple preheater and double-sided machine to spray single-sided corrugated board to increase water content. At the same time, it is also possible to install a spray device at the slitting press line to cause the paperboard to dry before pressurizing due to the shutdown of the double sided machine, so as to increase the moisture content of the paperboard so that the paperboard will not break easily when the paper is pressed.


Pressure line: try to deepen the depth of the pressure line, so that the cardboard does not break to the limit, so that the cardboard "to crack not cracked" to ensure that the cardboard is pressed through, compacted, corrugated must be collapsed, this can significantly improve the carton flap The degree of folding.


Reducing the viscosity of the glue and increasing the water content of the glue can increase the water content of the board. The viscosity of the glue is recommended to be controlled between 30 seconds and 35 seconds.

Doing the above points will have a significant effect on improving the folding resistance of the board.

Ultra-thin corrugated cardboard
The ultra-thin corrugated cardboard includes E corrugated, F corrugated, and G corrugated, and it has become a revolutionary product of the corrugated cardboard 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 Corrugated will replace 10% of the market for cardboard (such as ash-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 sets of G-type corrugating rollers in Europe and 25 sets 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 guides of German E&L 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 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 follow the width of the paper and

The production speed is automatically adjusted.

(b) Cooling zone: pressure plate type.


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


Base paper:

(a) Lightweight heavy paper with 80~135g/m2 facial paper

(b) Average moisture control and base paper thickness control


How to prevent cardboard from bending back

(a) Tension

(b) Heating control

(c) glue control

Dining Patio Table Set

Patio dining table set creates an immensely striking, comfortable and durable place to relax and dine. The rattan weaving finish of the all-weather wicker is complemented by a hidden rust-resistant, powder-coated aluminum frame. A thick layer of tempered glass protects and reflects on the intricate weave below.

-Part of the Hyde Park Collection.

-Modern, clean lines and a fresh, squared shape

-Richly different color fibers

-Handwoven premium resin wicker

-Rust-resistant powder-coated frame

-If you want,can add umbrella hole with cap

Patio dining table set has many options. Round table, Square table and rectangle Patio Dining Set, You can be free collocation by yourself with armchair or armless chair.

Dining Patio Table Set Dining Patio Table Set


Dining Patio Table Set Dining Patio Table Set

About us:

1.our factory is more than 20000 square meter big.

2. Our showroom is about 800 square meters.

3. we have professional sale team and more than 200 workers.

4. The capacity of our factory is 60 containers/month.

5. we attended CIFF furniture fair and canton fair.

Welcome your further inquiry for further discussion, also welcome to visit our factory to talk face to face.


Dining Patio Table Set,Rattan Dining Table Set,Wicker Dining Table Set,Outdoor Dining Table Set

Golden Eagle Outdoor Furniture Co., LTD. , https://www.geoutdoor.com