产品介绍
卷筒玻璃纸
卷筒玻璃纸按基本用途分为两类：一类是下机卷筒纸，即在玻璃纸生产线切边后直接卷取下机。另一类是用于印刷复合的高档卷筒玻璃纸，除具有平板玻璃纸的功能外，卷筒玻璃纸的显著特点是幅间差小，厚度更加均匀，表面经过特殊处理，更加适用于印刷和复合。
ROLL CELLOPHANE
Roll
cellophane we produced is divided into two types in terms of use purposes:
one type is the mill-roll cellophane, which is directly wound into roll
after being cut off the edges of film at the end of production machine;
the other is the roll cellophane for printing and laminating. Besides the
basic properties of PT-cellophane in sheet, the most important properties
of the latter kind of roll cellophane are that its thickness is much more
even than sheet cellophane along the whole width direction because of the
little difference between the max. thickness and the min. thickness of the
film; and that it is more suitable for printing and laminating because of
the special surface treated by special
processes.
|
ITEM 指标名称 |
UNIT 单位 |
SPECIFICATION 规定 | |
|
FINE QUALITY ROLL 优质卷筒 |
MILL-ROLL 下机卷筒 | ||
|
SUBSTANCE 定量 |
g/m² |
29±1.0 30±1.0 |
28±1.5 30±2.0 |
|
THICKNESS VARIATION LESS THAN ALONG WIDTH DIRECTION 不大于 厚度幅间差 |
μm | 1.5 | 2.0 |
|
TEARING INDEX IN MORE THAN MD 不低于 纵向撕裂指数 |
mN.m²/g | 1.6 | 1.1 |
|
ELONGATION 伸长率 MD 纵向 MORE THAN TD 横向 不低于 |
% |
10 20 |
10 20 |
|
TENSIILE STRENTH 抗张强度 MD 纵向 MORE THAN TD 横向 不低于 |
N/15mm |
38 20 |
35 18 |
|
SULPHUR CONTENT LESS THAN 含硫量 不高于 |
% | 0.03 | 0.03 |
|
AUTI-BLOCKING PROPERTY MORE THAN 抗粘性 不低于 |
%r.h | 75 | 70 |
| PH | 6.0-8.0 | 6.0-8.0 | |
|
MOISTURE 水分 |
% | 6.5-8.5 | 7-9 |