It is noticed that more and more industries prefer to use hot melt adhesive for adhesion today. Such as automotive filter, purification filter, bookbinding, product assembly, EPE foam, medical, furniture, non-woven fabric, hygiene products etc. Today we’d like to have a short view on the application of hot melt adhesive in packaging, then you will find the answers by yourself.
What is Hot Melt Adhesive?
HMA ( short for Hot Melt Adhesive) is a thermoplastic polymer based adhesive which is applied in the molten state and which functions primarily by mechanical anchorage.
Benefits of Hot Melt Adhesive:
a) Fast Processing
b) Environmentally Friendly
c) Bond Impervious Surfaces
d) Gap filling
f) Cost effectiveness
g) Efficient shipment and storage
With the above advantages, Hot melt adhesive is used more and more widely instead of water based and solvent based adhesives in many fields.
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EVA hot melt adhesive is not the same as usual glue,in terms of its features, you would have to pay attentions during the book binding manufacturing, see as below:
1.Get to know its technical data and types firstly. Different hot melt glue has big difference of the openning time,curing time, especially you have to notice the temperature effect varying from summer to winter.
2.during the usage of hot melt,pls not heat by fire, remember to heated by the help of spacer bush oil, or by the sealed electric heating board.
3.Pre-heat the melting container for nearly 2 hours.
4.make sure that there is suitable glue in the melting container,to avoid that some glue gets aged.
5.Confirm all the bonding process is done,once confronted with fault,take out the book.
6.when the machines stops working,not forget to turn the melting device off.
7.Keep right melting temperature according to hot melt supplier’s advice.
8.Clean the kettle and melting container on time,to protect the melting system from impurity.
EVA hot melt adhesive is one kind of 100% solid fusible polymer that not contain water and no need of solvent. When heated, EVA hot melt adhesive would turn to be fliquid adhesive while under constant temperature it is 100% solid. Its color usually shows light yellow or white and clear white.
As we know, the main componets of hot melt adhesive includes common resin EVA and some tackifier,viscosity adjusting agents,antioxidant etc. Therefore，tongde hot melt adhesive
would have below features:
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