黄山汉邦树脂颜料有限公司

Lots of problem will occuer In plastic injection using fluorescent pigment, it is so difficult if we neglect some details. Followed by normal problems we have met from our customers.

Problem	Possible Reasons		recommended solutions
Color Change	1	Injection Temp Variation	Check injection temperature
	2	Injection Time Variation	Check injection time and period
	3	Poor Mixing	Check mixing
	4	Fomula Changed	Check fomula
	5	Raw Material Variation	Check plastic, filler, catalyst and pigment Check lot number of above material Contrast testing if necessary
Poor Brightness	1	High Injection Temp	Check injection temperature
	2	Long Injection Time	Check injection time and period
	3	Dirty Screw	Clean screw
	4	Poor Mixing	Check mixing
	5	Fomula Changed	Check fomula
	6	Raw Material Variation	Check plastic, filler, catalyst and pigment Check lot number of above material Contrast testing if necessary
Poor Dispersion	1	Low Injection Temperture	Check injection temperature
	1	Poor Dispersion	Check dispersion in extruder
	3	Poor Mixing	Check mixing
Plate-out	1	Dirty Screw	Clean screw
Plate-out	2	Fluorescent Pigment	Check fluorescent pigment by testing, Change fluorescent pigment
Color Transmission	1	Plasticizer	Check plasticizer by testing, Change plasticizer
	2	Catalyst	Check catalyst by testing, Change catalyst
	3	Too Many Filler	Reduce filler content
	4	Fluorescent Pigment	Check fluorescent pigment by testing, Change fluorescent pigment
Superstandard Lead or heavy-metal content	1	Plasticizer	Check plasticizer by testing, Change plasticizer
	2	Catalyst	Check catalyst by testing, Change catalyst
	3	Other Pigments	Check other pigments by testing, Change other pigments
	4	Fluorescent Pigment	Check fluorescent pigment by testing, Change fluorescent pigment