Direct Gravure Coater
Direct Reverse Gravure Coater

The method here involves, with a gravure roll having a finely processed surface and a backup roll for transferring coating liquid to a base material, scraping away excess coating liquid adhering to the raised areas of the gravure roll to decrease the amount of coating liquid remaining in the recessed areas, and transferring the coating liquid to the base material. Coating thickness control depends on the type and depth of engraving on the gravure roll surface. A change in the coating thickness requires you to have several types of gravure rolls with different engraving configurations.

Features

  1. Can be used for both direct and reverse coating.
  2. The coating thickness is easily controllable simply by changing the types of rolls.
  3. Compatible with a variety of base materials
  4. The coating thickness ranges from 3 to 50 µm (wet).

  • Roll Layout

    Direct Gravure Coater

    Direct Reverse Gravure Coater

  • Demonstration Machine

Available Engravings

Oblique

This can be used when the coating liquid is highly viscous and more transferring is required. A doctor blade can be used together.

Cells/Inch Depth（μ） Cell Volume in cm3/m2
35 250 124
42 190 94.2
60 180 89
70 114 56.2
70 150 74
80 130 64
90 90 44.2
100 77 37.7
100 60 29.4
120 80 39
130 69 33.6
130 55 26.8
150 55 26.7
150 50 23.5
180 49 22.7
200 35 16.8
230 20 9.5

Trapezoidal

Mainly used in coating with a doctor blade, and has the larger transferred amount than the pyramid type with the same depth.

Cells/Inch Depth（μ） Cell Volume in cm3/m2
45 125 56
65 120 62
85 95 46
102 61 31
120 64 31
150 49 22
165 39 19
185 52 22
200 39 15
220 31 12

Pyramid

Mainly used in flexographic printing and suitable for small amount transferring.

Cells/Inch Depth（μ） Cell Volume in cm3/m2
45 254 78.5
65 104 31
75 98 30
93 88 25
102 74 21
120 53 14.5
150 55 13.5
165 38 8.6
200 29 6

Cell Volume

Volume accuracy of 3% or less is achieved.