The role of inner tray in gift box packaging is extremely vital. It can not only play the role of fixing and protecting products, but also make the whole package more attractive. The following is the custom gift boxes factory to introduce the difference between the three kinds of inner tray materials commonly used by high-end gift box customization manufacturers.
The first: Pearl Cotton, EPE (Expandable Polyethylene), is hair polyethylene. Non-crosslinked obturator structure, it is low-density polyethylene (LDPE) as the main raw material extrusion generated by high foam polyethylene products, it is composed of low-density polyethylene fatty through physical foaming to produce numerous independent bubbles. It overcomes the defects of fragile, deformation and poor recovery of ordinary foamed glue. It has numerous advantages, such as waterproof, moisture proof, shock proof, sound insulation, heat preservation, excellent plasticity, strong toughness, recycling, environmental protection, strong collision resistance and so on. In gift box manufacturers, pearl cotton can be matched with various colors of flannelette together, so that the gift box is more colorful.
The second kind: sponge, mostly by polyisocyanate and polyol as raw materials to synthesize. The basic reaction is polyol and polyisocyanate production of polyurethane reaction, commonly used sponge science called polyurethane soft foam rubber, polyurethane is a common polymer material in life, widely used in the production of various "sponge" products. Because of its excellent resilience, sponges are commonly used in toy gift boxes and electronic product packaging.
The third kind: EVA, is made by ethylene (E) and ethylene acetate (VA) copolymerization, abbreviated as EVA. EVA is characterized by excellent softness, rubber-like elasticity, excellent flexibility at -50℃, excellent transparency and surface gloss, excellent chemical stability, excellent aging resistance and ozone resistance, and no toxicity. At present, the price of EVA is relatively high among the three. In gift box customization manufacturers, most customers choose pearl cotton.
The differences among pearl cotton, sponge and EVA are mainly as follows:
1. You can tell the difference with the naked eye. Sponges are highly elastic and relatively lighter than these three. EVA is a bit tough, mostly black, and is the heavier of the three. EPE pearl cotton is normally white and black, and it is extremely easy to distinguish with sponge, sponge no matter how you press will be restored to the original state, and EPE pearl cotton has no resilience, if you press tough to press the place will be concave state.
2. EPE pearl cotton has a wavy pattern, looks like a lot of foam sticks together, extremely light. EVA is solid, it depends on what the concentration is, and it's heavier than that.