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Why there are bubbles after the hot melt adhesive melts
Jul 14 , 2023
Bubbles in the melt will affect the adhesive effect. The first type: The glue contains moisture, and the moisture is vaporized at high temperature and mixed into the glue, and because the glue is relatively viscous, it is difficult for the water vapor to float to the surface and release. The second type: Before using the hot melt adhesive, there are other chemical components mixed in. The former r...
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The importance and key points of PUR edge banding
Aug 11 , 2023
The importance and key points of edge banding Edge banding is a point that cannot be ignored in the manufacture of wooden doors. In fact, a good and strict edge banding board not only makes the wooden door good or bad, but also determines the service life of the wooden door, as well as its aesthetics and environmental health. There is another important point, that is, the unavoidable application o...
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Why does hot melt adhesive smoke during use?
Sep 08 , 2023
1. The operating temperature set by the hot melt adhesive machine is too high Usually people think that when using hot melt adhesive, the higher the temperature, the faster the melt adhesive and the faster the gluing speed. Actually, this is a misunderstanding. When the hot-melt adhesive is melting, the velocity and temperature of the hot-melt glue are roughly an attenuating oscillatory function c...
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Why does the pressure of the hot melt adhesive machine become unstable during use
Oct 18 , 2023
Hot glue machines are widely used in various industries, and their unique advantages greatly facilitate production and bring huge profits to enterprises. All hot melt adhesives on the market today comply with national environmental protection requirements. There are many types of hot melt adhesives. Different types of hot melt adhesives are used according to different bonding requirements, and dif...
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Hot melt adhesive used for gluing masks, protective clothing, disposable mattresses and wet wipes covers
Oct 25 , 2023
Hot Glue is a plastic adhesive. Its physical state changes with temperature within a certain temperature range, but its chemical properties remain unchanged. It is non-toxic and odorless, and is an environmentally friendly chemical product. It is favored because the product itself is solid, easy to package, transport, store, solvent-free, non-polluting, and non-toxic; as well as its simple product...
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Why is it not recommended to mix hot melt glue?
Nov 03 , 2023
Each adhesive has specific properties. Even if hot melt adhesives look the same, that doesn't mean they have the same chemical structure. 2 reasons why mixing is not recommended 1. Clogging of hoses and hot melt glue guns Suppose you change from a hot melt adhesive that is used at 150-170°C to one that is used at 130-150°C. What happens if you mix new hot melt glue into the old glue in the glue ta...
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Why does PUR hot melt adhesive appear stringing and bubbles?
Nov 08 , 2023
Cohesive strength of PUR hot melt adhesive machine The law of influence between the cohesive strength of PUR hot melt adhesive colloid and wire drawing is: if the cohesive strength is large, the wire drawing phenomenon will be obvious; on the contrary, if the cohesive strength is small, the wire drawing phenomenon will not occur. PUR hot melt adhesive curing time The curing time of PUR hot melt ad...
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What problems may occur during use of the hot melt glue box sealing machine?
Nov 16 , 2023
Hot melt glue carton sealing machine is an automatic or semi-automatic packaging equipment that is upgraded and transformed on the basis of packaging machine. It can automatically complete glue spraying, ear folding, sealing, etc. The hot melt glue box sealing machine uses an automatic glueing method to glue the folded sides of the carton. It is suitable for gluing a variety of carton sizes. It ha...
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Entering winter, you need to know about these operations of hot melt adhesive machines
Nov 20 , 2023
1.As the temperature gradually drops in winter, some customers have experienced poor adhesion, brittle hot melt adhesive, and degumming when using hot melt adhesive for production. What is the reason? Hot melt adhesive is sensitive to ambient temperature. Due to the cold temperatures in winter, the hot melt adhesive bonding process is cold, resulting in rapid solidification and hardening. Some glu...
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