C.I.PY93 1357 SuperFast Yellow 3GP

1357 SuperFast Yellow 3GP  C.I.NO.:PY93 Pigment yellow 93

P.Y.93 affords a light greenish to medium yellow shade which is similar to that of P.Y.16.

The pigment is primarily used to color plastics, including PP spin dyeing. Incorporated in plasticized PVC, P.Y.93 shows good to average tinctorial strength and good bleed resistance. Approximately 0.85% pigment is required to formulate a 1/3 SD samples with 5% TiO2. P.Y.93 demonstrates very good lightfastness. In PVC, it is as lightfast as P.Y.94 and in this respect even slightly superior to P.Y.95, but it is less stable to light than the greener P.Y.128.

1/3 SD pigment formulations in rigid PVC and in PVC plastisols which are intended for coil coating lose weatherfastness much more rapidly as more TiO2 is added than do P.Y.94 and 128. There is no difference in the response of the respective pigmented systems to weather, as long as they contain only 1% TiO2, while a TiO2 content of 5% renders the P.Y.93 system considerably less durable than its counterparts.

1/3 SD P.Y.93 formulations in HDPE (1% TiO2) withstand exposure to up to 290°C for one minute or up to 270°C for 5 minutes. The pigment causes distortion at processing temperatures between 220 and 280°C. This effect, however, is so minor as to be tolerable for most purposes. Distortion phenomena therefore rarely restrict the extent of pigment application. In terms of lightfastness, 1/3 to 1/25 SD samples (1% TiO2) equal step 7 on the Blue Scale. Good heat fastness makes P.Y.93 a suitable candidate for polypropylene spin dyeing. The pigment is also very lightfast in this medium. P.Y.93 shows good to excellent textile fastnesses in textile printing.