What are the formation and solutions of hot melt adhesive impurities


Clean up the glue pot, improve the glueing environment, […]

Clean up the glue pot, improve the glueing environment, and let the thermo-adhesive film glue impurities disappear. The hot melt glue needs a glue melting process before use. During the whole process, other sundries may be mixed in. For example, when a book is glued, some paper scraps and dust may fall into the glue pot. One of the quality standards for making label paper is that it does not leak oil, that is, after the hot melt adhesive is applied to the label paper, it will not spill or leak for a long time.


What should I do if there is oil leakage on the label?Whether the label paper has oil leakage, the composition and stability of the hot melt adhesive play a vital role in it. No matter how strong the public relations ability is, no matter how fine the production equipment is, it depends on the quality of the materials. Hot melt adhesives are responsible for preventing the oil leakage of labels of different qualities.But to be honest, the paper used in some labels is really bad, and you can feel its fragility as soon as you put it on the mold.


A little pulling force is like disconnecting from the waist. The production cost of the label itself is very low. It is recommended to use better paper to make it. If it is broken, the reputation will not be worthwhile. Let's talk about hot melt adhesives. It has been used in the label industry for a long time, and there is no problem in production. On the premise that there is no problem with the craftsmanship and the paper quality, the hot melt adhesive accounts for a large proportion of the overall quality of the label paper.


The pot of molten glue will more or less contain carbides that have been deposited over the years, and it may also be mixed with newly melted glue, and so on. Maybe a little bit of dust will not have much impact on the use and performance of the hot melt adhesive, but what if the glue itself needs to match the appearance of the product? This requires special attention of those who use glue.