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US 12,330,342 B2Granted
Method for removing adhesives and/or interlaminar inks on laminated plastic material
AssigneeUniversidad de Alicante
InventorAndrés Fullana Font
Life of this patent
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Abstract
The present invention relates to a method for removing interlaminar adhesives and/or inks on laminated plastic material, which comprises the following steps: a) microperforating the laminated plastic material with at least one microperforation per cm2, b) removing the ink and/or adhesive by adding a washing solution to the microperforated plastic resulting from step a), c) separating the plastic material and the aqueous material.
Claims15
A method for removing interlaminar adhesives and/or inks on laminated plastic material, comprising the steps of:
- a) microperforating the laminated plastic material with at least one microperforation per cm2,
- b) removing the ink and/or adhesive by adding a washing solution to the microperforated plastic resulting from step a), and
- c) separating the laminated plastic material and the washing solution;
- and
- a step of conditioning and grinding the laminated plastic material to be treated prior to step a).
2 more elements
A microperforation device for laminated plastic material, comprising:
- a mill for grinding the laminated plastic material,
- a hopper for receiving the laminated plastic material from above,
- a pair of double rollers, rotating in opposite directions and arranged in the lower portion of the hopper, for receiving the laminated plastic material from the hopper due to the effect of gravity, and
- microneedles located on the rollers to perforate the laminated plastic material as it passes between the rollers,
- wherein the microperforation device is used to remove interlaminar adhesives and/or inks on laminated plastic material, comprising the steps of:
- a) microperforating the laminated plastic material with at least one microperforation per cm2,
- b) removing the ink and/or adhesive by adding a washing solution to the microperforated plastic resulting from step a), and
- c) separating the laminated plastic material and the washing solution;
- and
- a step of conditioning and grinding the laminated plastic material to be treated prior to step a).
7 more elements
Dependencies are inferred from the claim text.