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Many friends engaged in export packaging have encountered this situation: The cardboard looks thick, but after being vacuum-formed, it curls at the edges and bubbles up, and the plastic shell doesn't stick firmly to the cardboard, and it peels off during transportation due to a slight shake.
In fact, often it's not a manufacturing issue; rather, it's that the cardboard itself is not suitable for vacuum forming. Only a cardboard that is highly compatible can ensure a strong and stable adhesion, prevent deformation, and make the shipping process more convenient.
For thermoforming to be successful, the flatness of the paper surface and the stability of the coating are particularly important. If the paper surface is rough and the coating is uneven, when heated, it is prone to problems such as partial non-adhesion and wrinkling and blistering. This not only affects the appearance but also makes customers feel that the product is poorly made. Especially for products transported by sea or over long distances, if the packaging is not firm, they are likely to be damaged, directly increasing the after-sales costs.
The truly excellent heat-moldable plastic card paper is evenly heated, has a high degree of adhesion with the heat-molded shell, and remains compact and without delamination after pressing, with no edge warping. Even after being handled, squeezed, or moved, it remains stable. It not only provides better protection for the product, but also makes the overall packaging more rigid and textured.
Songhong Paper's blister card paper is a specially designed material for export blister packaging. The paper surface is smooth and fine, with stable coating, excellent heat-press bonding effect, and is resistant to blistering and peeling. It can be used for small accessories, daily necessities, or hardware parts, ensuring both durability and aesthetics. The batch is stable, the machine compatibility is high, the packaging efficiency is higher, and it is particularly suitable for merchants who frequently export goods.
Don't just focus on the thickness and ignore the impact of the plastic film. Choose the right cardstock that is suitable for your product. This will make the packaging more sturdy, maintain a better appearance, and also reduce a lot of unnecessary waste.