掌上团酷

彩色短纤维的意思

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彩色短纤维


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拼音字母cai se duan xian wei
拼音首字母csdxw

百科含义

有色防伪纤维又称彩色防伪纤维、可见防伪纤维、彩色短纤维。该纤维是有颜色的(红、蓝、绿等),混入纸浆抄纸后,自然光下观察,彩色纤维随机分布在纸张中,用针可将纤维挑出。Colored fiber: The colored (such as red, green, blue) fibers are usually used to be mixed in the paper pulp to make the security paper. They can be found under the natural light when they are distributed in the paper. ...

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