离岸价格
获取最新报价0.5 ~ 0.65 / Unit
|Minimum Order
位置:
-
最小订单价格:
最小订单:
5000 Unit
包装细节:
5 Reams per Box
交货时间:
5 to 10 days
供应能力:
100000 Box per Month
付款方式:
T/T, D/A, D/P, Western Union, Money Gram, PayPal
Netherlands
联系人 Marcel
Double A Paper Properties
Double A has *0 million fibers per gram, a unique characteristic that gives Double A its:
• Smooth surface
• High density
• High opacity
• Low ash content
• Good formation
Smoothness
Smoothness is a measure of the flatness of a papers surface and affects how it moves through a printer or copy machine. A smoother surface also has a high-quality feel, is pleasing to the eye, and is particularly well suited to high-speed machines.
Roughness is taken into account when measuring a papers smoothness, and the lower the number the better
the paper. Paper roughness varies from the top of a sheet to the bottom due to gravitational forces.
Bending
Bending strength improves a papers contact with the copy machine and prevents tearing the higher the bending strength the better.
Density
Another property of good paper is density, which refers to its strength, smoothness and opacity the higher
the density, the smoother the surface, but with lower opacity and strength.
Opacity
Opacity is the measure of how much light is prevented from passing through a sheet. High opacity is usually associated with high filler content and results in a high ash reading under test conditions. Double As opacity comes from the unique features of its pulp, giving it high opacity with low ash content.
Ash Content
Ash Content is another key to good paper formation a property that is associated with filler use, high ash content equals high filler content.
Formation
Formation is an indicator of how evenly fibers and fillers are distributed in a paper sheet. Paper with poor formation has an uneven surface with thin spots and thick spots.
Light Fastness
Light fastness is a good indicator of a papers resistance to fading or change of color when exposed to sunlight
the longer the line, the longer a paper will retain color.