1. www.ustar-duplexboard.com
U&STAR INDUSTRY CO.,LIMITED
STANDARD TYPE
GREY BOARD
MAIN TECHNICAL INDEX
技术指标
Technical Index
单位
Unite
规定合格品
Standard Quality
定量
(Base Weight)
g/㎡ 300--3000
定量偏差
(Base Weight More or Less)
% ≤ -5, ≤+3
规格偏差
Size More or Less
% ≤ ±3
含水率
（Water Content）
% 7, 2% more or less
层间结合力
(Binding Force Between Layers )
J/㎡ ≥120
厚度
(Thickness)
100gsm/
mm
0.165-0.167
(for un-laminated,A grade/
laminated type grey board,AA grade)
0.158-0.162
(for all grey board type,AAA grade)
Customized
尘埃度
(Dirty Count)
dot 3mm, ㎡≤12
Remark:
1.Water abortion index should be adjusted according to different areas, temperature and weather;
2.Above technical date is just for reference , please confirm the quality by samples and final goods;
3.We also have the ability to follow client’s special quality requirement,like gsm/thickness ratio,water
content,surface craft(like smooth surface,white/nominated surface color,round corner,small size than 640mm) etc,
we will confirm our our production department, and offer your special grey board solution plan,thank you.
U&STAR, YOUR PAPER&PAPERBOARD EXPERT