The cause of the aging of the blanket
1. In the daily production of rubber blankets, due to prolonged contact with fountain solution, ink, gasoline, and kerosene, it will become hard, the elasticity will decrease, and the surface will age and glow.
2. Fixed for a long time, tightened on the roller, and after being rolled by the roller, the blanket is stiff and loses balance and high elasticity.
3. The influence of external environmental conditions, such as the effects of air, light, and heat, destroys the chemical structure of the blanket, changes its physical properties, and reduces its mechanical properties. It becomes hard, brittle, and cracks or hair can occur in severe cases. Soft and sticky.
Ways to prevent blanket aging
1. Every time when the machine is shut down for a long time, the ink of the blanket should be washed off and dried, leaving no traces, to prevent the surface rubber from being too smooth and hardening, and improving aging. When there are many impurities such as paper wool, powder and filler on the surface of the leather cloth, it is necessary to wash the blanket frequently and keep the surface of the blanket clean to prevent the accumulation of impurities from being too thick and harden into a solid. Press the blanket to make The rubber partially loses its elasticity.
2. After washing the blanket, you can shoot some talcum powder on the blanket to restore the elasticity of the blanket.
3. When printing for a long time without printing, the blanket should be relaxed to restore its original elasticity. The replacement blanket should be cleaned, patted with talc powder, and wrapped in opaque paper and placed in a cool place.
4. The organic solvent with fast volatility and strong solubility is used as the detergent for the blanket. Our factory often uses light oil as the detergent, while the volatile kerosene is easy to make the blanket swell. In addition, pay attention to the printing pressure when printing. The printing paper should be kept well. It should not contain sand and other debris. Do not use wrinkled, sticky, or torn paper. At the same time, the blanket must be protected from high or low temperatures, away from electromagnetics, strong light, and chemicals.
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