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How to choose environmentally friendly hot melt adhesive? At present, the functions and applications of hot melt adhesive have received widespread attention, but the environmental issues of hot melt adhesive are often overlooked. Has environmental protection become a bottleneck for the further development of adhesives? Solving the problem of environmental pollution has become an urgent task nowadays.
Hot melt adhesive is mainly made of EVA, rubber, polyolefin, polyamide and other materials, supplemented by high molecular weight materials such as tackifiers and softeners. Solvent free and non-volatile. Compared to solvent based, oil-based, and water-based adhesives, hot melt adhesive is more environmentally friendly.
However, the layers in environmentally friendly hot melt adhesive are different. From the environmental requirements of the European Union and the United States, many hot melt adhesives currently on the market do not meet the standards. Many hot melt adhesive companies, in order to reduce costs, extensively use environmentally unfriendly and inexpensive materials, and classify their produced hot melt adhesives as non environmentally friendly products.
How can we determine if the hot melt adhesive we purchase is environmentally friendly? At present, international environmental protection hot melt adhesive testing projects include ROSH standards, formaldehyde testing, determination of 18 types of polycyclic aromatic hydrocarbons, halogen fluorine, chlorine, bromine, iodine content, determination of total octane yellow compounds (PFOS) content, determination of nonylphenol formaldehyde polyvinyl chloride ether (NDEOS) content, and REACH84 testing. Medical hot melt adhesive also undergoes skin insensitivity testing.
First of all, the conclusion is that the powder on gold and silver cardboards is mostly due to “surface coating not being treated properly” or “glue temperature not being pressed down” Gold and silver cardstock is coated with a layer of gold and silver foil or PET aluminum plated film on the surface of the […]
For most terminal packaging operations, adhesive carbonization is usually the main cause of most downtime events. Once EVA hot melt adhesive carbonization occurs, it will be difficult to clean thoroughly without taking extreme measures. Even after flushing, charcoal may still stick to narrow corners and continue to cause issues that affect normal operating time and […]
What creates high-performance book and magazine edge glue? When dealing with difficult paper, medium to medium curing adhesives can provide better adhesive penetration between pages and on the cover. When the paper quality is easier to adhere, fast curing products are usually used in high-speed magazine production lines. The viscosity of the adhesive you choose […]
Direct answer: FormalHot melt adhesive pelletsThe free sample sending process of manufacturers is usually “proposing requirements → explaining working conditions parameters → confirming sample model and quantity → sending for free (usually SF Express collect or free shipping for the first time) → customer testing on the machine → feedback results before adjustment”. The entire […]
