subject: Tips On Water Based Adhesives For Mailers [print this page] Presently, short term re-moistened glue and adhesive jobs are probable as a consequence of current high-quality yields through products which have good production rates. This was out of the question until the 1990"s, and it can make marketing merchandise by means of direct mail promotions considerably more lucrative.
There's two kinds of adhesives employed as remoistenable glue. You will find the older technologies, that's water soluble remoistenable glue that goes thru a cold application. It operates by transferring epoxy to paper by use of either a wheel or a blanket. There initially were two advantages to this specialized adhesives property: Initially it is not triggered by heat, this made it laser appropriate in downstream uses. Second, there are many sizes of glue application pads that could run in a range of directions. This provides for efficient processing of complex product.
Cold applied glue does continue to have some essential negative aspects. It needs to be run through hot dryers following application. This tends to often make the paper to curl and split. For one more, cold glues have a tendency to be fuller at the start of the glue strip. This solid build up can take longer to dry, which in turn causes the operators to select from semi-wet remoistenable glue that can potentially stick to other sheets, or dried brittle paper. Ultimately, leaving the cardstock inside the oven for long periods can be a fire hazard. In general, it is a lot more risk and variables than are acceptable in a short run item.
Holt melt extruded glue is the alternative option for using remoistenable glue. Providers have more control of glue placement, along with the physical appearance with the glue strips as they are currently being applied. It's done this way by computer operated solenoids which will precisly start and stop the movement of your glue when necessary.
Water-soluble glue which is applied to a pattern gluer can perform that. But because pattern gluers trust in timed entry, rather than motion sensors such as computer controlled solenoids of hot melt extrusion, the application is not as accurate. Additionally, there is the fact that hot melt extrusion glue infrequently curls the paper, and possesses a specialist physical appearance. Cold application glue will probably look duller, and have torn edges that curl simply because moisture will be added to one side of the sheet. If you were looking for a drawback for extrusion machines, one would be they can only apply remoistenable glue in concurrent lines. Should you have a pattern that needs to be laid down in the shape of a "U" you'll have to either do two passes, or have a pair of machines running at right angles to each other.
Other binding processes will most likely be performed simultaneously as remoistenable glue applications. A bindery can put remoistenable glue, perforate the sheet after that, then apply a glue seem to form a pocket, fold the paper to complete that pocket, employ clip seals, place on any patterns with ink, whilst keeping the work order all in one line. Such a machine tremendously lowers turn-around times, and value. With regards to glues and adhesives for the direct mail campaign project, this could be a better solution.
