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A factory that exports precision instruments used BOPP tape to fix honeycomb cardboard liners. However, due to rough shipping, the liners shifted and instrument edges were damaged, resulting in a high return rate. Later, it was changed toHot melt adhesive particles are glued and fixedLet’s break down this set of tactics and talk about it.
Honeycomb cardboard is lightweight and has good cushioning, butLow surface energy and numerous poresThe tape will peel off when compressed for a long time; And the tape is prone to aging in high temperature and high humidity cargo holds. What the factory needs is a bonding method that combines instant positioning and long-lasting adhesion.
| indicator | Before changing the adhesive (tape) | After changing the adhesive (hot melt adhesive particles) |
|---|---|---|
| Transport damage rate | About 4.2% | Reduced to 0.6% |
| Single box auxiliary material cost | middle | Slightly reduced (glue points save material) |
| Line Takt Time | Slow tape pasting | Glue dispensing is faster |
honeycomb cardboardCannot use high-temperature adhesiveOtherwise, it will shrink and deform due to hot pressing; The adhesive point should be applied to the “solid contact area” rather than the honeycomb hole, otherwise it will be sticky. Guangzhou Sunlife Trading will help the factory solidify the rubber particle model into the BOM, and the workers who change jobs can reproduce it according to the parameters.
Q1: Can ordinary sealing rubber particles be used for honeycomb cardboard?
Yes, but the initial adhesion should be sufficient and the melting point should not exceed 90 ℃ to avoid damaging the paper surface.
Q2: How to determine the dispensing amount?
According to the contact area, generally every 10cm ², there is a 0.5-0.8g adhesive point, and the sample is tested first before calibration.
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