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General paper at 38 °C above, its strength will be significantly reduced. In order to better ensure the quality of paper, paper storage environment, the relative temperature of the best can be controlled at about 75%. If the temperature of the indoor (paper storehouse) reaches 39°C, ventilation cooling measures should be taken to prevent embrittlement and deterioration of the paper. Paper is also susceptible to decay by termites and other insects. Therefore, it should be checked carefully. Paper that has been stored for a long time should be flipped in due course. It should be replaced immediately after the floor is damaged by termites.
Usually, the storage period of paper should not exceed one year. Even if the conditions for storing paper are better, if the paper is stored for too long, it will be discolored and deteriorated. If the paper storage time is two years later, the coated paper will be yellowed and decolorized; the newsprint will turn yellow and become brittle; the packaging paper will have discoloration and strength; the yellow board and linerboard will be mildewed and so on. Therefore, all kinds of papers must be kept in the first-in, first-out principle when they are stored, so as to avoid long-term storage and deterioration.
Correct storage of paper
Paper has a strong temperature-absorbing property. When the paper is damp, it will undergo elongation and deformation, and it will produce moldy spots and affect product quality. Therefore, the stack of paper must be clean and dry and well ventilated. When stacking the paper, apply a wooden stand up to 20mm from the ground, and do not get too close to the wall. Paper can not be put together with easily deliquesce items, otherwise it will easily absorb moisture and deteriorate. For papers that are not sized, such as newsprint, strawboard, and cardboard, we should pay more attention to moisture prevention during the rainy season. In addition, if the paper is exposed to light, white paper will turn yellow, colored paper will fade, and the paper will become brittle, and it will be prone to cracking. Therefore, it is necessary to prevent exposure when storing paper.