By Process

►Injection molding
Extansively used in thermoplastic resin processing: Pellets are melted by heat through cylinder/screw and then injected by nozzle to molds to solidify after cooling down.
　

►Extrusion molding
Similarly with different screws, molding can be categorized into: blown film (by O-die), casting film (by T-die), extrusion sheet and laminating.

Co-extrusion:
Multi-layers can be achieved by multiple screws. For example, ABA, ABCBA, ABCDE and etc.
Note: Thickness less than 0.25mm (1/100 inch) is classified as “film”. Others “sheet”.
　

►Compounding:
Mix primary and supplementary ingredients, filler and additives to produce processed materials; can be categorized into: “alloy”, “PP/filler”, “GF-PA”, and “conductive”. There are “thermoplastic elastomer compounding” and “engineering plastic compounding”, depending on the hardness of plastic.

►Fiber Woven by different materials. There are “staple fiber” and “filament fiber”.

Additives applied in each process:

Additives	Injection molding	Extrusion molding	Compounding	Fiber
Anti-oxidant agent			ü
Anti-static agent	ü	ü	ü	ü
Coupling agent)	ü	ü	ü	ü
Impact modifier	ü	ü	ü	ü
Nucleating agent	ü		ü
Anti-scratching agent	ü	ü	ü	ü
Mold releasing agent	ü	ü	ü
Flow modifier	ü	ü	ü	ü
Dispersion agent	ü		ü	ü
Foaming agent	ü	ü
Anti-shrinking agent	ü	ü	ü
Slip agent	ü	ü	ü
Flame retardant	ü		ü
Lubricant	ü	ü	ü
Surface modifier	ü	ü	ü	ü
Anti-microbial/anti-fungi agent	ü	ü	ü	ü
Anti-fogging agent	ü	ü
Anti-blocking agent	ü	ü
Adhesive agent		ü
Matting agent		ü
Diffusion agent	ü	ü	ü
Softening modifier				ü
Color masterbatch				ü