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Common Problems and Solutions in the Use of UV Varnish

Common Problems and Solutions in the Use of UV Varnish

UV varnishes pose two main challenges for packaging and printing plants: First, they are sensitive to operating conditions during seasons with high temperatures and humidity; second, they are vulnerable to excessive moisture content in the substrate. Under these workshop conditions and given the nature of the substrates, the ink or adhesive films applied during printing or varnishing are highly likely to peel off when initially inspected using adhesive tape, leading to product returns by customers. In addition, there are numerous common issues associated with the use of UV varnishes. What are the primary causes behind these problems? What are their direct manifestations? And what are the effective solutions?

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