One, the moisture resistance of paper and board base paper and corrugated paper, paper especially tile water imbibition is strong;
Paper in moist air exposure over time, add water, the horizontal ring crush strength of paper will drop significantly, in the relative humidity is 85%, the ring crush strength would fall by 60%.
Processing method claims to switch to better waterproof effect of base paper, especially the pit of paper.
Inspection of the base paper waterproof effect, but through a meter test base paper appearance water imbibition, general appearance suction degree in 50 g/m2 (
Waterproof, moistureproof effect is better.
If can't test instrument, directly on the corrugated board paper or corrugated paper sprinkled a few drops of water, wait for 60 seconds after the paper blot, investigate the discoloration after soaked paper appearance, if do not have, prove better waterproof effect.
Generally, waterproof paper mill to improve base paper appearance, progress in papermaking process requirements of waterproof agent in surface sizing starch paste liquid share, because the agent is expensive, waterproof good paper than poor waterproof paper capital more than 50-100 yuan per ton, the lower g capital is higher.
Demand, therefore, a cardboard-box factory and was automatically communicate with carton customers, offer appropriate progress.
Second, corrugated board production process handle carton soft is the main technique of the chosen material, second to see production process.
Carton soft elements of the moisture is absorbed excessive, therefore, in the process of produce carton processing, should try to remove the moisture in the cartons.
Processing method: base paper warehouse and outdoor cutoff as far as possible, must prevent the moist air inside the warehouse arbitrary.
Proper time, in the warehouse equipped with suction wet machine, ensure the relative humidity is below 65%.
Base paper in warehouse will absorb the moisture in wet air, hands-on should step up the base paper dryer in preheating Angle, if the effect is still not good, but neglect the speed, add steam pressure.
Add powder content when making a paste, cut the gluing quantity, can cut the moisture in the carton.
In addition to add borax share will also improve corrugated board feel.
Cut cardboard paper overpass accumulation amount, snub the speed, especially after the corrugated board stack for energetic wet.
Three, storage environment: offline after the cardboard should be without smoke scattered off steam, to prevent temperature condensate phenomenon, cardboard boxes or storage environment ventilated breathe freely, cardboard carton is not directly on the ground, choose plate (
Check the note of the gap between each other, to facilitate ventilation cooling.
Use wooden plate, can absorb moisture, above ground intrusive and fitting for cardboard carton;
Adhere to the storage environment ventilated breathe freely, use outside wrapping film as maintenance, can be useful to decline and blocking phenomenon of climate impact soft.
Now many manufacturers have started to use wet machine, if can ensure warehouse relative humidity is below 65%, the cardboard has significantly improve the hardness.
Dongguan industrial cardboard
composite factory research and development, production and sales of industrial composite board.
The main products: industrial cardboard, composite board, double gray cardboard, whole gray paper
, gray highlights cardboard, coated paper, kraft paper, board, special paper, industrial cardboard, composite board, etc.
Our factory has the abundant technical force and professional production team, has been adhering to the 'do customers suitable products, satisfactory service to clients' spirit of enterprise, won the trust of many customers and support.
We will continue to high-quality products, satisfactory service to meet the various needs of customers.
Warmly welcome new and old customers calls negotiate!
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