A non-destructive method for invalidating the sealing of film-coated hard paper double-sided adhesive

Abstract

The invention discloses a method for non-destructively invalidating the seal of the film-coated hard paper double-sided adhesive. Step 1, preheating the action area of ​​the electromagnetic wave radiation device to above 100°C; Step 2, disposing the seal in an electromagnetic wave radiation environment, Ensure that the area outside the parting area is not affected by the radiation area; step 3, heat radiation is performed at the place near the glue, and the temperature at the place far away from the glue does not exceed 60% of the irradiation temperature; step 4, the wavelength of electromagnetic radiation is 4 to 18 microns, The output power is 200‑900W, the clamping temperature of the radiation device is 100°C‑150°C, and it acts for a certain time B. After the electromagnetic wave radiation is removed, the seal is lifted. The method of the invention effectively simplifies the failure method of the film-coated hard paper double-sided adhesive seal, shortens the operation time, and improves the controllability of the process.

Description

technical field [0001] The invention relates to a method for invalidating a paper glue seal, in particular to a method for nondestructively invalidating a film-coated hard paper double-sided adhesive seal. Background technique [0002] At present, the methods to invalidate paper glue include using special component solution to invalidate specific curing glue, ultra-low temperature to invalidate glue, and external heating steam to invalidate glue. In practical applications, paper adhesives with different components often appear, and targeted configuration Solutions of specific components means complex. Ultra-low temperature is difficult to achieve partial sealing to make the glue invalid, and ultra-low temperature is rare. Externally heated steam is difficult to control the standard parameters, and the high humidity of the steam can easily cause excessive deformation of the local seal. The operability and safety of the steam is also the weakness of this method. [0003] At ...

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Problems solved by technology

[0002] At present, the methods to invalidate paper glue include using special component solution to invalidate specific curing glue, ultra-low temperature to invalidate glue, and external heating steam to invalidate glue. In practical applications, paper adhesives with different components often appear, and targeted configuration Solutions of specific components means complex

Ultra-low temperature is difficult to achieve for local sealing to make the glue invalid, and ultra-low temperature is rare

Externally heated steam is difficult to control the standard parameters, and the high humidity of the steam can easily cause excessive deformation of the local seal. The operability and safety of the steam is also the weakness of this method

[0003] At present, the method of making the double-sided adhesive tape of coated hard paper invalid is to use ultra-low temperature to make the glue invalid, and the electric hot shovel shovels the seal to destroy the sealing adhesive layer. In practical applications, the electric hot shovel cannot achieve non-destructive peeling of the double-sided adhesive layer.

It is difficult to achieve ultra-low temperature to make the glue invalid for local sealing, and the ultra-low temperature method is not common

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