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The difference between spraying glue and scraping glue of hot melt glue applicator
Mar 23 , 2023
There are many kinds of glue spraying methods for hot melt glue machines. Some industries need glue spraying effects, and some industries need glue scraping effects. These are all selected according to the customer's process requirements. The hot melt glue guns used for glue spraying and squeegeeing of hot melt glue machine equipment are different, see the picture below: Where is the specific diff...
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Hot melt adhesive carbonization causes and avoidance measures
Mar 30 , 2023
Everyone who uses a hot melt adhesive machine knows that there will be a layer of black material around the glue tank after the hot melt adhesive machine has been used for a long time. These are the carbides of the hot melt adhesive. How are these carbides formed? What should we do to avoid excessive carbides in hot melt adhesives? In fact, the generation of carbide mainly has the following points...
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Hot melt glue machine filter cleaning
Jun 28 , 2023
Cleaning steps of hot melt adhesive machine: 1. It is necessary to set the temperature of the hot melt adhesive machine system to the operating temperature; 2. Remove the filter from the branch seat, and check whether the filter needs to be replaced; 3. If it needs to be replaced, install a new filter, and at the same time use a new sealing ring and apply high-temperature oil; 4. If it does not ne...
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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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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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