භාවිතයට පෙර සහ පසු හෝ භාවිතයේදී පවා උණුසුම් උණුකරන මැලියම්වල අපද්රව්ය මතු විය හැකිය. ඇයි මේ? එමනිසා, උණුසුම් දියවන මැලියම්වල විවිධ තත්වයන්ට අනුව අපද්රව්ය සෑදීම අධ්යයනය කිරීම අවශ්ය වන අතර පසුව විසඳුමක් සොයා ගත යුතුය.
ගොඩනැගීමඋණුසුම් දියවන මැලියම් is the result of the joint action of a variety of chemical
substances. Which substance is impure, or which two substances produce foreign
bodies when reacting, these are the categories to be considered in the
formation of impurities. Let me talk about impure raw materials first. The raw
materials are used in the production of උණුසුම් දියවන මැලියම්s. Regardless of the
color, initial viscosity, and yellowing resistance of the උණුසුම් දියවන මැලියම්,
the role of the raw materials is irreplaceable. However, if the raw materials
are impure or the physical properties are unstable, the possibility of
impurities will be greatly increased when used in the production of hot melt
adhesive products. But sometimes උණුසුම් දියවන මැලියම්s may have black spots and
uneven colors, which may be caused by uneven mixing of raw materials or
conflicts in physical properties between various raw materials during the
production of උණුසුම් දියවන මැලියම්s.
Clean the glue
pot, improve the glue application environment, and make the hot melt glue
impurities disappear. Hot melt adhesive needs a melting process before use.
Other impurities may be mixed in the whole process. For example, when gluing a
book, paper scraps and dust may fall into the glue pot; there are more or less
carbides deposited over the years in the furnace, which may be mixed with the
newly melted glue, and so on. Perhaps a little dust will not have much
influence on the use and performance of උණුසුම් දියවන මැලියම්s, but what if the
adhesive itself must match the appearance of the product? This requires special
attention from glue users.
In order to
avoid impurities in උණුසුම් දියවන මැලියම්s, manufacturers and users of hot melt
adhesives must know the reasons for their formation. As a hot-melt adhesive
manufacturer, you need to be responsible for the quality of the hot-melt
adhesive and have requirements for the quality of the raw materials used, which
provides a basis for producing high-quality products without impurities. As a
hot melt glue user, the glue application equipment also needs to be in good
working condition like hot melt glue, and it can be cleaned regularly according
to the residual degree of the glue tank and glue gun.