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Corrugated board soft four reasons and improving methods
by：Lisson
2020-11-27
Corrugated board soft four reasons and improving methods of corrugated board soft four reasons and improving methods of
board produced or better hardness, into the warehouse after a day time, cardboard began to become soft. Cardboard boxes soft seriously affect the printing and the physical index, why will appear this kind of circumstance?
cause analysis 1, glue in caustic soda consumption is too large;
2, logoff cardboard overlap stacking too high;
3, dryers, hot plate temperature below 160 ℃ and the speed too fast, low temperature environment cause the appearance of dry, cardboard stacking after rapid soft;
4, cardboard storage environment relative humidity is more than 65%.
to improve the method 1, appropriate decrease of adhesive solution with alkali.
2, USES the well type stacking and stack height less than 1. It is advisable to 5 m, if necessary, use the water vapor from the blower forced ventilation to disperse the board;
3, according to the environment, temperature, and paper mastering the dryer speed, and check the paper quality.
4, to strengthen the cardboard storage environment is ventilated, the ground quick lime powder available moisture absorption. Conversion table packaging printing knowledge
board produced or better hardness, into the warehouse after a day time, cardboard began to become soft. Cardboard boxes soft seriously affect the printing and the physical index, why will appear this kind of circumstance?
cause analysis 1, glue in caustic soda consumption is too large;
2, logoff cardboard overlap stacking too high;
3, dryers, hot plate temperature below 160 ℃ and the speed too fast, low temperature environment cause the appearance of dry, cardboard stacking after rapid soft;
4, cardboard storage environment relative humidity is more than 65%.
to improve the method 1, appropriate decrease of adhesive solution with alkali.
2, USES the well type stacking and stack height less than 1. It is advisable to 5 m, if necessary, use the water vapor from the blower forced ventilation to disperse the board;
3, according to the environment, temperature, and paper mastering the dryer speed, and check the paper quality.
4, to strengthen the cardboard storage environment is ventilated, the ground quick lime powder available moisture absorption. Conversion table packaging printing knowledge
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