China 75g A4 Copy Printing Paper-Print Document

Basic weight: 70, 75, 80G/M2
Whiteness: >98%
Thickness: 103-110um
Surface roughness TSml/min: 75-175
100% pure wood pulp, high whiteness, high texture, suitable for double-sided copying, quality service at a competitive price.
Features and Benefits:
1. Excellent image clarity & contrast.
2. High opacity and thickness.
3. High performance for both side printing/copying.
4. Optimized smoothness on both surface.
5. Uniform toner/ink absorption to provide good print evenness.
6. Paper dimensionally stable.
7. Guaranteed for trouble-free operation.
substance: 70/75/80GSM in weight
Size: A4(210mm* 297mm), A3(420mm*297mm),8.5*11(216*279mm), 8.5*13, (216mm*330mm) ,8.5*14(216*356),11*17(279*432mm)
There are two quality:
1. Mixed wood pulp(ordinary quality, and ordinary brightness)
2.100% wood pulp (Super quality, and super brightness)
further more, their quality also depend on its brightness
98%-102% brightness(super quality, super brightness)
106%-%108 brightness(high super quality, high super brightness)
Factory review:

ItemUnitStandardResultBasic Weightg/m2ISO 53670Thicknessmm/1000ISO 53498Bending stiffness CD/MNISO 2493145/68Surface roughness BSml/minISO 8791-2200CIE Whiteness%ISO 11475166UV Whiteness%ISO 2470113Opacity%ISO 2471Min 90Moisture%ISO 287:19943,8-5,0