Inline Decurling Bar Penetration and Water Dampening Mechanics on Lamination Lines
Inline decurling bar penetration forces mechanical yield in paper fibers while reverse dampening restores moisture loss to eliminate single-sided lamination curl.
EN 13430 Repulpability
Recovery Requirement
European performance standards specify the criteria for material recovery through the recycling of used packaging. Testing for en 13430 repulpability ensures that a paper or board product can be broken down into individual fibres during industrial processing. This requirement forms part of the essential health and safety rules for packaging waste in the internal market.
Testing Protocol
Laboratory analysis begins by soaking the sample in water and applying mechanical agitation to simulate the action of a hydrapulper. To satisfy the en 13430 repulpability standard, the material must release its fibres without creating large clumps or plastic fragments that would block the screens. A successful test measures the mass of the dry fibres recovered against the mass of the original sample.
If the sample contains high levels of wax or insoluble adhesives, it will fail the test because these substances clog the machinery. The presence of metallic foils or thick plastic laminates often prevents a material from achieving this certification.
Fibre Yield
Manufacturers use these results to validate their environmental claims for new packaging designs. Because the en 13430 repulpability protocol is recognized globally, it provides a baseline for international trade in paper goods. Finished products must achieve a high percentage of fibre recovery to be considered recyclable.