Too tight a rubber blanket

The blanket must be tight on the blanket cylinder with proper tension. If the blanket is too loose, when the blanket is imprinted, displacement occurs under the action of the pressing force and cannot be reset in time. This can cause ghosting failure. If the blanket is stretched too tightly, there will be many drawbacks:

1. The adhesive layer is thinned and its elasticity is reduced. If the printing pressure is calculated by measuring the thickness obtained by the micrometer in the field state of the blanket, then the printing pressure may be insufficient due to the excessive thinning of the adhesive layer. The thinning of the strand reduces the elasticity of the blanket, and even if the center-to-center distance is decreased to increase the amount of compression, poor ink transfer may occur. If it is an air-cushioned blanket, too tight a stretch may also cause the microbubble sponge layer to fail and lose the good performance that the air-cushion blanket should have.

2. Causes uneven printing pressure. Due to the tightening force, the pulling force of the blanket at different positions in the circumferential direction is not uniform, resulting in a non-uniform thinning of the thickness in the circumferential direction, resulting in uneven printing pressure. The tighter the tension, the more serious this unevenness is. The nonuniformity of the pressure causes inhomogeneity of the ink transfer, so that the background color of the solid or flat net, which should otherwise be uniform, becomes non-uniform and the hue of the color image shifts.

3. Affects the synchronous rolling state. Fine fruit under normal blanket tightness and rubber blanket lining thickness, the three rollers have a good state of synchronization of the rolling area, then in the case of excessive tension, the rubber roller relative to the plate cylinder and the impression roller synchronization The rolling ratio will rise, destroying the state of simultaneous rolling, sliding between the three rollers, affecting the correct transfer of dots, destroying the reduction of levels and colors.

4. Accelerated the creep and aging of the blanket. The tighter the tension, the more likely it is to cause a conformational change in the rubber molecules, which will stiffen the molecular chain and deteriorate the elasticity of the rubber, affecting the printing quality of the product and shortening the service life of the blanket.

Marine Plywood

Item: Film Faced Plywood
Size: 1220*2440mm,1250*2500mm or as requested
Thickness: 2.5-25mm
Core: poplar, combi, hardwood
Film: chinese brown, dynea brown, black, red
Glue: MR, WBP, Melamine
Density: 500-630kgs/cbm
Moisture: 6-14%
Thickness tolerance: +/-0.5mm
Modulus of Rupture: â‰¥30Mpa

Modulus of Elasticity: â‰¥6000Mpa

1.High bending strength

 

2.Strong nail holding

 

3.Moisture-proof and easy work

 

4.Tight construction and high strength

 

5.No ratten or decay

 

6.Low formaldehyde emission

 

7.The productions are suitable for the construction of viaduct and tall frame building

 

8.If put in boiling water for 48 hours,it still glue sticking and still formed

 

9.If used abide by illustration strictly,it can be reuse more than 50 times

 

10.Solve the problem of leaking and rough surface during construction process.Particular suiltable for watering concreat.


Marine Plywood

Marine Plywood,Marine Plywood Sheet,Certified Marine Plywood,Marin Plywood For Construction

Shouguang Bailing Wood Industry Co., LTD. , http://www.bailingfurniture.com