What problems will affect the U. S. profile of paper tape sticky last?

often use textured paper tape, if it aside for too long, be affected with damp be affected with damp, it would not be so sticky, can keep the masking tape, sticky so what problems will affect the U. S. profile of paper tape sticky?     1, glued and adhesive electronegativity electronegativity for electrostatic force between the two kinds of material with opposite charge. Acid is generally characterized by the punctual, alkaline is characterized by negative point, based on the principle of plus or minus attract, glued and adhesive between electronegativity, the greater the will glue the more tight.   2, the difference degree of acid and alkali difference degree is mainly refers to the PH PH difference between the two kinds of material's size. If the difference, the greater the bonding situation will become better.   3, high temperature, in general, under the environment of high temperature for a long time, the masking tape items will be along with time, reduced viscosity slowly, is also a will affect the U. S. profile of paper tape for viscous factors.   4, low temperature and cryogenic this tape in low temperature reaches 253 ° C below zero, it reduce the adhesion, it is also a can affect this tape for viscous factors.   5, moisture and flooding moisture is through two ways to affect the bond strength. If the masking tape under hot and humid environment, due to the loss of hydrolysis of strength and hardness, serious when, even will be liquefied. Water will seep into the rubber, will replace the sticky on the surface of the junction adhesive, therefore, when wet, bonding strength declined, could affect the sticky tape.