Production of fine corrugated board and corrugated roller

Fine enamel (referring to E, F, G, N, O, and finer pods) is becoming more and more widely used in food, toys, small items, handicrafts, gifts, textiles, medicines, daily chemical products, and medical supplies. Equipment, electronics, digital products, communications, software, and other industries packaging products and buffer lining and for the production of advertising display racks and posters and other materials.
Since the fine corrugated cardboard has high compressive strength and uses recyclable corrugated base materials, it can obtain printing effects like cardboard. G-shaped and finer micro-corrugated cardboard can also be directly subjected to exquisite offset printing, obtaining the same Mechanical strength but better elasticity and shock-absorbing performance than cardboard, and excellent characteristics such as lighter weight, lower transportation cost, lower application cost, and more environmental protection, are being rapidly developed and applied in the world today. Especially in developed countries that attach special importance to environmental protection.
The production line of micro-corrugated cardboard is not much in our country. Some imported quick-change corrugating rolls are equipped with E and F corrugating rollers on the production line, such as BHS' five-layer production line and Agnati's seven-layer production line. The domestic production line has a small number of three-layer E corrugated cardboard production lines, most of which are E-lay single-faced units and a small number of F-corrugated single-faced units and a few of the modified G-wail single-side units. With China's accession to the WTO, the economy has maintained a sustained growth year after year, foreign capital continues to enter, China is becoming a processing center in the world, which will surely promote the domestic packaging industry to obtain greater development and technological progress. In the future production and application of micro-corrugated cardboard, we will certainly face a rich cake.
The production of micro-corrugated board is a systematic project, from the design of the crucible, the structure and accuracy of the corrugating roller, the form of the single-sided machine, the running accuracy of all the equipment of the production line, the selection of the paper, and the matching of the running speed with the ideal speed. Tension control, temperature and humidity control, glue modulation and glue control, paperboard quality control, etc., have different specific requirements from conventional corrugated board such as A, C, and B.
First, the design of the fine corrugated file and the structure of the corrugating roller A feature of the fine corrugated fiber is that it has many turns and the corrugated base paper has light weight and low strength. Taking the number of turns per 300 mm as an example: G-type is 185±12, N-type is 200±15, O-type is 267, and B-type is 50±2. With a pair of corrugated rollers of the same diameter, the number of turns of the fine corrugated medium is increased by 3 to 5 times that of the B type corrugated type. It can be seen that the tension during paper feeding and molding has doubled. Therefore, the 楞-type design must ensure that the 楞-type package angle value is within the strength of the corrugated base paper, and the selection of the dome-shaped arc should make the corrugated base paper's entry resistance smaller, smoother and smoother. At the same time, the crucible type angle should make the corrugated structure satisfy the sufficient rigidity and mechanical strength of the micro-corrugated cardboard. The corrugated surface of the micro-corrugated corrugating roller needs a higher roughness requirement, and must be finely ground and polished in order to ensure high-speed molding of corrugated base paper with low light weight and high strength.


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