专利名称：INFORMATION IDENTIFYING SHEET
electric hoist发明人：MATSUSHITA TOSHIHIKO，松下 壽彦,SAKAI KOUNOSUKE，堺 康之介
申请号：JP特願平4-324365
申请日：19921203
公开号：JP特開平6-171274A
公开日：
19940621
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摘要：PURPOSE:To improve the effect of preventing counterfeiting by a method wherein a specific metal bridged fiber having an IR ray absorbing power is added to pulp slurry, the resulting mixture is subjected to wet sheet making process to form information identifying sheets and a random pattern of the metal bridged fiber is formed in the information identifying sheet. CONSTITUTION:The information identifying sheet is made by a wet sheet making process using a mixed slurry comprising natural or synthetic pulp and a specific metal bridged fiber in such an amount that 0.05-5.0wt.% metal bridged fiber is contained bad on the weight of the pulp. The metal bridged fiber is produced by a method wherein an acrylic resin is arranged into a bridged form, hydrolysis is conducted to produce carboxyl group with the balance amide group and polyvalent metal ions are bridged. The information identifying sheet is irradiated with the IR ray consisting of a wavelength of 500-1500nm to read or record the random pattern of the metal bridged fibers prent in the information identifying sheet. The random pattern is also recorded repeatedly for identification.parachute什么意思
申请人：MITSUBISHI PAPER MILLS LTD，三菱製紙株式会社
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地址：東京都千代田区丸の内3丁目4番2号
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take care国籍：JP
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