Antioxidant, UV Absorber, Pigment, Dye for PA

PA is an abbreviation of polyamide which is a semi-crystalline polymer. There are two types: those made of one basic material (e.g.PA 6) and those made of two basic materials (e.g. PA66). They can occur both naturally (e.g. wool and silk) and synthetically (e.g. nylon).


Antioxidant, UV Absorber and Light Stabilizer (HALS) for PA

Material Application Antioxidants UV Absorber/HALS Remark
Aliphatic PA

Engine blade

Heat sink cover etc.

245/1098+168 234+770 0.2-0.7%


Optical Brightener for PA

Application OBAs Adding Form Typical OBAs Issue to mind
PA Spinning OB-1 /

Organic Pigment for PA

Pigments which are targeted for polyamide spin dyeing, apart from being extremely heat stable, must also be chemically fast to the highly reducing medium of the PA melt. Spinning temperatures are between 250 and 290°C, depending on the type of polyamide. As with polyester extrusion, only very few polycyclic pigments are suitable for this purpose. There are no organic yellow pigments which satisfy the specifications. Pigment preparations are also available for this purpose.

Pigment suited for PA listed as below;

Pigment yellow 110, Pigment yellow 147, Pigment yellow 148, Pigment yellow 150, Pigment yellow 187,  Pigment yellow 192.

Pigment orange 68.

Pigment red 149, Pigment red 177, Pigment red 178, Pigment red 179,  Pigment red 202.

Pigment violet 23, Pigment violet 29.

Pigment blue 60, Pigment blue 15:3.


Dyes for PA

Solvent yellow 21, Solvent Orange 63, Solvent red 122, Solvent red 214, Solvent blue 70, Solvent blue 132 are frequently used in coloring PA.