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The difference between hot melt adhesive and self adhesive:
　　First, the difference in viscosity

　　Hot melt adhesive belongs to the heating adhesive glue type, glue only in the melting with viscous, in the cooling is cured, not with viscous, similar to plastic. Different types of hot melt adhesive, its melting point, soluble finger and performance are different. The melting point of low in about 70 ℃, usually in 110 ℃, higher can reach 180 ℃.

　　Self-adhesive adhesive is also self-adhesive, as the name suggests, is also at room temperature with viscous, relatively low melting point, high soluble finger, generally only 40 ℃ melting point, usually the lower the melting point of its viscosity after cooling is also lower, which is why self-adhesive adhesive composite is very easy to tear, while the hot-melt adhesive is very difficult to tear the reason.

　　Second, the difference between environmental protection

　　Hot melt adhesive belongs to a class of plastics, colorless, tasteless, transparent, in the processing of any odor and pollution, cooling is also colorless and tasteless, in line with the export of Europe and the United States of America's goods with the type of glue.

　　Self-adhesive glue, although lower cost, but in the processing of serious pollution, a radius of 300 meters can smell the smell, the smell is also present in the cooling, can only become a low-end shoe glue type, usually shopping malls, in the sale of shoes on the shoe rack to smell the smell is self-adhesive glue emitting odors, which is why cheap shoes in the box will be asked to open the obvious pungent odor, while the good shoes do not have this smell.

　　Third, the different ways of applying glue and lead to different performance

　　As the hot melt adhesive in the cooling into a solid state, the existence of the form can be a lot: powder, block, or made of adhesive film, mesh film, etc. can be, gluing method is also a lot of common powder point, powder, adhesive film (mesh film) to fit three kinds. Among them, powder point, powder and mesh film coating type is breathable.

　　Self-adhesive adhesive melting point is low, into a liquid state, it is difficult to make other shapes, in the application of glue is also mainly used "brush" on the way, the disadvantage of this way is that the glue is easy to block the fine holes in the fabric, resulting in breathable, if made into a shoe shaping cloth, the moisture inside the shoe is difficult to discharge, which will lead to foot odor and other phenomena.