Title:
ALUMINUM FOIL WITH DOUBLE DARK SIDES AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/148679
Kind Code:
A1
Abstract:
An aluminum foil with double dark sides, wherein the glossiness of the front side of the aluminum foil is as follows: measuring glossiness GZ 20 <50Gu at an angle of 20 degrees, measuring glossiness GZ 60 <150Gu at an angle of 60 degrees, and measuring glossiness GZ 85 <100Gu at an angle of 85 degrees; the glossiness of the back side of the aluminum foil is as follows: measuring glossiness GF 20 <50Gu at an angle of 20 degrees, measuring glossiness GF 60 <150Gu at an angle of 60 degrees, measuring glossiness GF 85 <100Gu at an angle of 85 degrees, wherein the glossiness is measured according to the ASTM D523 standard. The preparation method for thealuminum foil with double dark sides comprises: stacking N layers of aluminum foils up and rolling them together, where N≥3, those aluminum foils which are not in contact with the surface of a roll during the rolling process are aluminum foils with double dark sides.
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Inventors:
WANG ZHIHUI (CN)
XU WEI (CN)
XU WEI (CN)
Application Number:
PCT/CN2018/085122
Publication Date:
August 08, 2019
Filing Date:
April 28, 2018
Export Citation:
Assignee:
BEIJING XINDA SHENG PACKAGING MAT CO LTD (CN)
International Classes:
B21B1/40; B21B1/38; B21D33/00; H01M4/139
Foreign References:
| CN102899531A | 2013-01-30 | |||
| CN102284483A | 2011-12-21 | |||
| CN103695723A | 2014-04-02 | |||
| CN102921730A | 2013-02-13 | |||
| JPH057903A | 1993-01-19 |
Attorney, Agent or Firm:
BEIJING LINGZHUAN INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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