The laboratory scraper coater is different from the scraper coater on the production line. It is mainly an automatic equipment specially designed for the preparation of samples with a specified thickness in the laboratory. With wire rod, scraper, vacuum adsorption, heating and other functions, it provides support for laboratory researchers to prepare precise ultra-thin sample films.
Scraper coater is a kind of coating equipment that assists technicians in precise film production. It simulates manual operation to provide a coating environment with more uniform force and more constant speed. It is generally equipped with a preparer and a wire rod to control the film thickness.
The scraper coater itself does not control the film thickness, and the control of the film thickness is determined by the scraper/wire bar of the scraper coater.
Why does the laboratory need a scraper coater?
The laboratory scraper coater is a film-making tool that replaces manual coating. Manual coating, force and speed control are different. Sometimes it is difficult to ensure the consistency and accuracy of the coating film. The automatic scraper coater can solve the problem of constant speed and constant speed. pressure problem
Ultra-thin coating
The film thickness of the scraper coating machine is not determined by the scraper coater, but the film thickness is determined by the wire bar or preparer matched with the scraper coater. Therefore, the accuracy of the wire bar and the Applicator decisively affects the accuracy of the coating film. When preparing an ultra-thin coating film, the accuracy of the wire rod selected is on the one hand, and on the other hand, the constant-speed and constant-pressure proofing of the scraper coater will also reduce the error of the coating film.
Thin Film Substrate Coating
Because the film substrate is relatively soft and thin, it is difficult to keep it flat, which will affect the effect of proofing. On the one hand, it is difficult to fix the flatness of the coating film due to the thin and soft substrate. On the other hand, it is difficult to control the coating film pressure and scrape the material The speed is unevenly controlled, so a vacuum adsorption type automatic scraper coating machine is generally used to ensure the flatness of the film substrate.
Coating material needs to be heated
Some special materials are solid at room temperature and require a certain temperature to maintain a molten state, such as hot melt adhesives. The physical state of hot melt adhesives changes with the change of temperature. During the coating process, it needs to pass Heat to melt the hot melt adhesive to continue coating.
multilayer coating
When preparing multilayer coatings, substrate material, flatness, precision of wire rods, and manual control errors will all affect the final proofing results. All multilayer coatings have high requirements for manual speed, pressure, and flatness. , as long as the preparation of one layer is not good, the follow-up will be scrapped, so it is a good choice to use a scraper coater
What types of scraper coaters are there?
NBCHAO provides a variety of coating machines for different materials and supports customization. Including but not limited to hot melt adhesives, UV, lithium batteries, medical films and polymers, etc., providing targeted automatic ink filling, heating, vacuum adsorption, UV curing and coil coating, etc.
