C.I.PY139 1333 SuperFast Yellow K2R

1333 SuperFast Yellow K2R  C.I.NO.:PY139 Pigment Yellow 139 for plastics

P.Y.139 is a reddish yellow pigment, used in plastics, paints, and printing inks. The commercial types exhibit a wide variety of particle size distributions and accordingly demonstrate very different coloristic properties, which is especially true for the hiding power. The opaque version is considerably redder. Incorporated in a paint, it is less viscous, which makes it possible to to increase the pigment concentration without affecting the gloss of the product.

P.Y.139 shows average tinctorial strength in plastics. Approximately 1% pigment is required to produce 1/3 SD samples in plasticized PVC containing 5% TiO2. 1/3 SD HDPE specimens containing 1% TiO2 are made from 0.2% pigment. Comparative values are listed for various other pigments. P.Y.139 is bleed resistant in plasticized PVC. It is often used in combination with inorganic and organic pigments, both in plasticized PVC and in PE. HDPE systems containing P.Y.139 in its transparent form (0.1%) and in white reductions (0.1%c0.5% TiO2) equal step 7–8 on the Blue Scale for lightfastness. Full shades darken considerably. P.Y.139 is not durable enough to satisfy more stringent requirements. 1/3 SD HDPE samples withstand exposure to 250°C, while 1/25 SD specimens are heat stable up to 260°C. The color becomes duller at higher temperatures, which is a result of pigment decomposition. P.Y.139 is an equally suitable candidate for PP spin dyeing. It is also found in PUR and in unsaturated polyester