Hot-melt adhesives are commonly known as EVA (ethylene-vinyl acetate copolymers). The formulations vary slightly depending on the industry in which they are used. However, hot-melt adhesives for printing should also be differentiated according to different applications. Sizzling- melt adhesives are popularly known as EVA( ethylene- vinyl acetate copolymers). Thepreparations vary slightly based on the industry through which they are used. However, hot- melt creams for printing additionally needs to be differentiated based on numerous applications.
you. Should several types of stuff be studied for binding different paperwork?
For example , binding plain paper or coated paper? Copperplate paper should can be found in of copper plate stuff, the highest - mounted glue weed wireless glue machine or the underside- mounted glue weed wireless glue machine? The stuff pot at the very top - mounted stuff pot should make use of the stuff with firm opening time.
( Note: The open moments of the melt adhesive describes plenty of time if the glue solution condenses. This time around is usually 6- 13 seconds.)
2. Just how long when the finished books and magazines be positioned before cutting?
Should really be cut in the- melt adhesive cooling hardening stereotypes, now should generally be guaranteed in significantly more than three minutes, otherwise you will see book spine deformation, plastic gross knife along with other issues.
( Note: The cooling and hardening moments of EVA hot melt glue is usually significantly more than 4 minutes)
3, plastic pot temp should really be how to boost?
First, in line with the technological specifications given by the maker of hot- melt creams being a reference, too much or low wil dramatically reduce the bond strength and ultimate ultimate tensile strength, and so the temp of the new- burn adhesive must certanly be managed within a particular range so that you can own best Bonding effect.
During addition, based upon the texture of the paper, the glue temp should also be different. For example , the inorganic content of layered paper is all about 10x more than regarding offset daily news and writing paper, plus the inorganic material has good arctic conductivity. It's going to accelerate the cooling of the new burn adhesive. Curing speed, so this situation should slightly boost the temperature of the plastic weed.
4. What requirements will the EVA hot melt adhesive have on the employment environment?
During general, the temperature is taken care of at a continuous temperature of 20- 25° C, and the humidity is maintained at about 50% so that the presenting effect can be optimized.
5. The length of time if the completed glued books be delivered for proper use?
Generally, it is provided immediately at the digital quick printing shop. Naturally, there is no problem as an common use, but it is not possible to read it at this time because the developing a result of EVA hot melt adhesive is most beneficial after twenty four hours .
6. What are the reasons behind a page drop in the user 's use?
In addition to the problems mentioned above, most commonly it is necessary to pay attention to whether the equipment debugging is appropriate and whether the procedure technique is correct. One more problem that is definitely pushed aside is that many plastic obstructions are added at one time during the operation. However, scheduled to the little bit of work performed every time, the EVA hot melt adhesive is repeatedly heated and melted, which destroys the macromolecular chain framework and reduces heat. Melt viscosity. This situation is more common in digital printing shops.
