Hard Oxidation Aluminum Bearing Fascia Roller

The fineness of the roll products is a measure of quality. Fine roll printing, ink is the key!

In general, the criteria that should be followed for ink: the field, the line, the text, etc. require a large amount of ink, and the number of selected mesh lines is lower; the color network pattern requires a small amount of ink, and the number of selected lines is higher; The requirements of the ink, the number of lines of the anilox roller will be subject to a certain degree of restriction!

On the printing plate, if the dot size is determined, if a lower number of anilox rolls are used, the area of each cell will be larger than the area of some dots on the plate, so that when printing, the dots have no partition wall. Support, the dots will be immersed in the cells.

Not only the surface of the dot is inked, but also the sidewalls are inked, resulting in an increase in dots. For example, a patch of 80% dot size will cause a paste to be printed, which will be printed on the ground and cause edge ghosting.

The dry compounding method is a method in which a binder is applied to a surface of a substrate by a laminating machine to heat the aluminum guide rolls to be adhered to other films.

This method is applicable to almost all substrates, and many layers can be compounded, and has been widely used in various fields of packaging materials. The equipment cost is cheaper than the extrusion compound machine.

While reducing costs, it also brings more conveniences.
1. No solvent, reduce environmental pollution.
2. There is no danger of fire and explosion.
3, the need for solvent drying process can save energy and equipment footprint.
4. There is no solvent to etch the printing ink.
5. There is no need to invest in recycling solvent equipment.
6. The cost is reduced due to the increase in production speed.

Soft calendering has the following advantages over hard calendering:

1. The pressed paper has the same tightness, and the calender roll with higher elastic modulus is generally 50 times to 500 times softer than the steel roll. When the elastic roll is pressed to the hard roll or the chilled cast iron roll with a certain line. The nip width becomes much wider than when the steel-steel rolls are in contact. The peak pressure decreases with the reciprocal of the width of the nip, the contact surface is no longer a flat surface, and along the radius of curvature of the steel roll, the total radial compression set of the steel roll is small (0.2% to 2%).

In the steel nip, if there are uneven plaques on the paper, the pressure will be uneven. When the paper entering the nip has too many thick plaques or flocculations, the pressure will be the highest and the surrounding area will be lower. The overall result is that the high fiber density zone of the web will appear in the low fiber density zone of the same sheet thickness, which is subjected to a lower nip pressure impact. When the paper sheet is pressed in the calender roll of the elastic surface layer, the depth of the depression of the hard roll into the surface layer is large enough that the change in the thickness of the sheet does not change the peak pressure (peak pressure, ie, the center line of the nip) The highest pressure).

2. Even if the paper is not well formed, its opacity can be improved and the stain can be eliminated. Since the soft roll surface material rebounds, the roll surface can be adapted to any undesirable formation and quantitative changes of the paper sheet. The thinner area of the paper is in contact with the hot roll, and at the same time, the thickness is not greatly reduced for the thick area, and such thick areas can increase the fineness of the smoothness and eliminate the stain.

3. The printing ink has good absorbability, because the paper sheet is tight and the thickness is not greatly reduced, so the extruded paper has good and uniform film properties.

Application

Packing

Order Details