Corrugated board and manufacturing method thereof
A manufacturing method and technology of corrugated board, applied in the direction of fire retardant addition, paper, mechanical processing/deformation, etc., can solve the problems of lack of flame retardant performance, fire hazards, economic losses, etc.
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[0015] The specific preparation process of the flame-retardant corrugated cardboard mentioned in the present invention is as follows:
[0016] 1) Prepare the upper surface layer and the lower surface layer. The preparation process of the upper surface layer and the lower surface layer includes: selecting raw materials, preparing pulp, papermaking, and finishing;
[0017] The pulp preparation process is as follows: First, pour the slurry into the mixing tank, add 7.5 times the volume of the slurry in water, and stir evenly. The temperature of the mixing tank is controlled at 25°C-38°C; Auxiliary, the interval time is about 12 minutes, keep the temperature of the mixing bucket and continue to stir; then, the temperature of the mixing bucket is raised to 35°C-48°C, and stir fully; finally, pour in a certain amount of water, stir well, and the temperature of the mixing barrel is maintained at 30 ℃, the prepared pulp concentration is about 0.8%-0.85%;
[0018] The papermaking oper...
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