Hot Melt Adhesive For Air Filter Element

The air filter element generally uses Hot Melt adhesive as an adhesive, and its main function is the hemming and shaping of the filter paper, the adhesion of the filter frame and the filter paper, the filling and sealing of the border and other process needs. At the same time, Binding Agent is widely used in the filter industry because of its environmental protection, safety, temperature resistance, fast curing speed, high production efficiency, easy gluing operation and many other characteristics.

Taking the manufacture of PU type automobile air filter as an example, the first step is to install the whole roll of filter paper on the origami machine, and the width of the origami paper is set according to the size specifications of the filter product; When the filter paper is folded and formed, the hot melt adhesive wire is sprayed evenly on both sides of the filter paper, and the hot melt adhesive is quickly cured and bonded, so that the folded filter paper is kept even and straight and does not pop open, and plays the role of sealing and fixing. Then according to the specifications of the filter cut into a specific size, into the mold, and then PU foam bonding and filling.

Hot melt adhesive for origami: the folded filter paper is quickly bonded and fixed by hot melt adhesive, where the filter paper after hot melt adhesive is not displaced and deformed. There are certain requirements for softening point, opening and curing time, bonding strength and thin consistency of hot melt adhesive.

Hot melt adhesive for breaking glue: For some models of filters, the breaking glue is required to ensure the firmness of the filter paper. The hot melt adhesive here needs good hardness and thermal stability to prevent the strip from brittle breakage at high or low temperatures.

Hot melt adhesive for seams: Usually, the seams on both sides of the filter paper are bonded with metal clamps and hot melt adhesive, which requires very good high temperature and medium resistance.

Hot melt adhesive for end cover bonding: The bonding between the filter element and the metal or plastic end cover is generally made of PU adhesive, but there are also cases of hot melt adhesive, where the hot melt adhesive requires a certain thin consistency, bonding strength and thermal stability.

- Highlight the performance requirements for Air Filter Hot Melt Adhesive:
Softening point, opening and curing time, thin consistency, bonding strength, aging and thermal stability, etc.

Hot Melt Adhesive For Filter

In summary, the choice of high-quality hot melt adhesive is particularly important for the quality of the filter. Shenzhen Tongde New Material Technology Co., Ltd. uses PO high temperature resistant hot melt adhesive, with good thermal stability, thin consistency, bonding strength and suitable opening time, can adapt to four seasons temperature and automatic or manual operation.