scraper coating is made by wiping the scraper to achieve the uniform application of pressure sensitive adhesive on the surface of the substrate.
the substrate (medical nonwoven fabric) of the medical permeable adhesive tape is compacted with the anti sticky substrate (medical silicon paper) coated with pressure-sensitive adhesive (medical silicone paper) in advance to transfer the pressure sensitive adhesive powder from the surface of medical silicone paper to the nonwoven fabric.
gravure printing uses uniform or regularly arranged gravure pits on the surface of the circular cylinder to transfer the small viscosity liquid adhesive onto the substrate of the medical breathable adhesive tape.
extrusion coating uses pressure to squeeze pressure sensitive adhesive from the gap and smear it on the surface of medical breathable adhesive tape.
in fact, the medical permeable adhesive tape is basically a transfer coating. first, the medical hot melt adhesive or the medical solvent glue is first coated on the medical silicone paper, then the silicone oil paper surface adhesive is transferred to the medical nonwoven fabric through pressure compound, and then the medical air permeable adhesive tape is processed. the adhesive is mainly coated with scrapers and gravure coating.
hangzhou xin hao medical science and technology co., ltd. specializes in infusion paste, medical permeable tape and medical self adhesive dressing, and warmly welcomes new and old customers to come to purchase and negotiate.