膠版印刷紙

Technical data of woodfree offset paper(技術指標 - 膠板紙)

指標名稱 Item 單位 Units                 標準 Standard
定量 Basis weight g/m² 60.0 70.0 80.0 90.0 100.0
定量橫幅差                        CD difference of basis weight g/m² ±2.0 ±2.0 ±2.0 ±3.0 ±3.0
厚度 Thickness µm ≥77 ≥89.5 ≥102 ≥115 ≥128
厚度橫幅差 CD difference of Thickness % ±6.0 ±6.0 ±6.0 ±7.0 ±7.0
松厚度 Bulk cm³/g ≥1.28 ≥1.28 ≥1.28 ≥1.28 ≥1.28
表面吸收重量  COBB g/m²        ≤38
平滑度 Bekk smoothness S ≥30 ≥30 ≥28 ≥26 ≥26
平滑度兩面差                      Bekk difference of both sides %        ≤20
CIE白度 Whiteness %    30–40
白度 ISO Brightness %                                    71–73
縱斷長MD Break Length Km                                  ≥4.2
不透明度 Opacity % ≥87 ≥90 ≥91 ≥92 ≥92
表面強度 Surface strength m/s  ≥2.5
橫向耐折度                       Folding strength CD time ≥10 ≥8
勻度 Formation % ≥15
水份 Moisture %                                 5.0-8.0
塵埃度 Dust degree pc/m²    ( 0.2-0.5mm²) ≤40,  >  (0.5-1.5mm²)≤4 ,  > 1.5mm² : 0
色相 Color shade                                       L: ≥94,               a:  -0.7±0.2,             b:  12±1