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China woven sacks manufacturers,pp woven sacks manufacturers,pp woven sacks,hdpe woven sacks,fibc manufacturers,ton bags wholesale suppliers.small ball into equilibrium, based on the position of the fiber suspension, the 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:
