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China plastic bag manufacturers.Custom printed plastic vest bags, punching bags,opp bags,carrier tote bags,ziplock bags,food bags,garbage bags,wholesale suppliers in china.measured fiber density .4, fluorescence method: using ultraviolet fluorescent light non-woven fibers, depending on the nature of different kinds of non-woven fiber luminous, non-woven fibers, fluorescence method: Victoria fluorescent colors to identify the different characteristics of various non-woven fibrous nonwoven fiber fluorescence color specific display: (a), cotton, wool fibers: light yellow (2), mercerized cotton fibers: light red (3), jute (raw) fiber: purple, brown (4), jute, silk, nylon fibers: light blue (5), viscose fiber: white purple shadow (6), bright viscose fibers: light yellow purple shadow (7), polyester fiber: Baiguang Qing sky is very bright (8), polyvinyl alcohol fiber light: yellow purple shadow .5, combustion method: Depending on the chemical composition of non-woven fibers, combustion characteristics are different, so the rough distinguish non-woven fibers, combustion: combustion characteristics of several common categories of non-woven fibers
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