hot melt adhesive for filter
Air filters are components used to purify the air. Filters are generally used in farms, laboratories, sterile rooms, car engines, car air conditioners, household air conditioners, household air purifiers, etc.
1. Hot melt adhesive for flat filter
Generally, the common filter element is a high-efficiency filter in glass fiber. We also call it a flat filter or flat filter. The bonding part is the part of the glue line in the middle, which is usually called the folding line glue. The glue in this part is glued automatically by the machine. This type of hot-melt adhesive pellets generally use EVA type quick-drying hot-melt adhesive pellets or APAO type quick-drying polyolefin hot-melt adhesive pellets. It is required that the bonded filter element has toughness and the glue line in the middle cannot be broken and cannot be bonded. The black part on the outside is sponge or plastic, which is glued with a hot melt glue stick.
2. Hot melt adhesive for activated carbon filter
Activated carbon filter, this filter needs to be glued to the black plastic shell + sponge, and hot melt adhesive with general viscosity can be used, there is no special requirement.
3. Hot melt adhesive for cylindrical filter
This cylindrical filter is almost the same as the flat filter, which needs to be folded and rolled into a cylindrical shape, which requires high tension properties of the hot melt adhesive. Generally, sizing is performed after nitrogen foaming, which can greatly reduce the amount of glue used. It is generally APAO polyolefin type hot melt rubber particles.
Some cylindrical filters are edge-sealed with black non-woven fabrics, which can be directly used with ordinary hot-melt glue sticks or hot-melt glue pellets, and some are edge-sealed with plastic covers, which are generally made of ABS material or PP material cover. This requires polyolefin type hot melt glue sticks or hot melt glue pellets with good viscosity. But the temperature should not be too high to avoid burning the plastic cover.
4. Hot melt adhesive for filter without folding line
This type of filter is generally very sticky. It is possible to use ordinary hot-melt glue sticks or ordinary types of hot-melt glue pellets for hand glue guns.
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