El Greco Iconography Pigment - Blue Milori - 100gr

• No.
  120
• Manufacturer
  El Greco
• Product Type
  Dry Pigments
• Barcode
  5212016643705
• Color Family
  Blue
• Paco code
  8311366
• Color Name
  Blue Milori
• SKU
  ELGREC-400.100-120
• Size
  100gr
• Description
  Dry Pigment

Πληροφορίες Χρωστικής

• Pigment Name
  PB15:3-Phthalo Blue
• Pigment type
  organic
• Chemical Name
  beta copper phthalocyanine
• Chemical Formula
  C32H16CuN8
• Properties

  Phthalo Blue PB15:3 is a structural variant of Phthalo Blue PB15 that produces more greenish tones.

• Permanence

  Phthalo Blues are completely lightfast and stable and are permanent for all paint uses. They are currently used in inks, coatings, and many plastics due to their stability and are considered a standard pigment in printing ink and the packaging industry.

• Toxicity

  Phthalo Blues have no significant hazards, although those made before 1982 contained some PCBs (polychlorinated biphenyls).

• History

  Developed by chemists using the trade name Monastral Blue, the organic blue dyestuff now known as Phthalo Blue was presented as a pigment in November 1935 in London. Its discovery was accidental. The dark color was observed in a kettle where a dye was being made from a British dyestuff plant. The demand for such a pigment came from commercial printers who wanted a cyan to replace Prussian Blue.

• Pigment Name
  PV23-Dioxazine Violet
• Pigment type
  organic
• Chemical Name
  carbazole dioxazine
• Chemical Formula
  C34H22Cl2N4O2
• Properties

  Dioxazine Violet is transparent and has very high tinting strength. It is a staining pigment, very dark valued when it is used at full strength. Concentrated, it paints out nearly black, but it mixes with Titanium White to form bright, opaque tints of purple. PV23 produces slightly redder shades than PV37. Because the hue can vary with the conditions of preparation and grinding, it may be offered in red shade, blue shade, and so forth.

• Permanence

  Dioxazine Violet has good lightfastness. There may be some concern about it fading or shifting in color in tints and washes. Some artists have reported that PV37, a molecular variant, is more lightfast than PV23.

• Toxicity

  
  

• History

  Two molecular variants of Dioxazine Violet, PV23 and PV37, are available. They have similar properties, but mix slightly differently.

• Pigment Name
  PR170-Naphthol Red
• Pigment type
  organic, naphthol AS
• Chemical Name
  -
• Chemical Formula
  C26H22N4O4
• Properties

  Pigment PR170 is a bright deep red with bluish undertones. It has an average drying time. It has two crystaline forms that differ significantly in opacity. The more transparent form (F5RK) tends to be more bluish and is less lightfast.

• Permanence

  The lightfastness and weatherfastness of Pigment PR170 varies, depending on the application and the crystaline form. The opaque form (F3RK) has very good lightfastness, and is more weather resistant. The transparent form (F5RK) has lightfastness that is considered acceptable in pure applications, but it fades more in tints. Neither form is considered suitable for exterior use.

• Toxicity

  -

• History

  Naphthol pigments are actually dyes that are laked to form pigments. First developed by the German chemical company Hoechst A.G. before World War I, their use in artist paints began in the 1920s. Pigment Red PR170 is a Naphthol AS pigment, chemically related to the diarylide yellow pigments. The Naphthol AS pigments comprise a range of reds. They are used in plastics, textiles, and printing inks.

No files available