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PIGMENT RED 81/ HP RED 2456

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PIGMENT RED 81/ HP RED 2456 - Honor Pigments
PIGMENT RED 81/ HP RED 2456

C.I.NO.: PR81

Advantage:

Main Application Recommended: Water based inks

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Description

Product Description – PR81

HP RED 2456 (PIGMENT RED 81) affords a very clean bluish red shade, The standard magenta on the European Color Scale for letterpress (DIN 16 538) and offset printing (DIN 16 539) is somewhat yellower. For such printing inks, certain high solvent fastness properties are required in order to safely overlacquer the prints. P.R.81 is a strong pigment, which, as with other representatives, is especially true for the PTM types. The pigment commonly darkens noticeably as it is exposed to light. It is recommended used for water based inks.

Recommended Application：

Printing inks: offset inks, water based inks

Technical Data:

Product Information
Chemical Type Rhodamine CAS NO. 12224-98-5
C. I. Name Pigment Red 81 EINECS / ELINCS NO. 235-424-7
C. I. Constitution No. 45160 Chemical Formula C28​H31​N2​O3
Technical Performance
Full Shade Tint
Weather Resistance 4 3 Heat Stability °C 150°C
Light Fastness 6 5
Physical Properties
Physical Form Powder Resistance to Acid 4
Specific Density (g/cm3): 1.80 ± 0.1 Resistance to Alkali4 4
Specific Surface(㎡/g): 35
Oil Absorption 50
pH Value 6.0-8.0
Volatile Matter 1% max
Packaging
25kgs/bag  400kgs/Pallet
Storage Shelf Life 5 years
Should be stored in cool, dry and ventilate place.
TRANSPORTATION
Avoid inversion, sunlight, moisture and crash. Avoid damage the package.
  • Light fastness: Light fastness rating is assessed on 1 to 8 Blue Wool scale where 1 = ‘Poor’ and 8 = ‘Excellent’.
  • Heat Stability : Heat stability values given indicate the maximum temperature at which the pigment can be stoved for 10 min. on the full shade and in reductions without undergoing any significant change in shade.
  • Oil absorption: The oil absorption is determined on the basis of EN ISO 787-5 and given in g linseed oil per 100 gm. pigment.
  • Solvent bleeding: The bleeding in solvents is tested using the powder grades and the visual rating given on 1 to 5 Grey scale
    where 1 = ‘Heavy bleeding’ and 5 = ‘No bleeding”

Disclaimer – The information given in this data sheet is based on the present state of our knowledge & is intended as a general description of our products & their possible applications. Due to the multitude of formulations, production & application conditions, all the above mentioned data have to be adjusted to the circumstances of the processor. No liabilities, including those for patent rights, can be derived from this fact for individual cases. It cannot be ruled out that this product contains particles < 0.1 μm. Any user of this product is responsible for determining the suitability of Honor Pigments’s products for its particular application & to ensure that any proprietary rights & existing laws & legislation are observed.

Why Choose Honor Pigments?

  • 🌍 Global Export Expertise — Trusted by customers in 40+ countries for consistent quality and reliable supply
  • ✅ Strict Quality Control — ISO 9001 certified with batch-to-batch consistency and zero-defect policy
  • 💰 OEM Production Advantage — Competitive pricing without compromising pigment performance
  • 🧪 Technical Support — Free color matching, formulation advice and sample testing before bulk order

📩 Need more details?

Request TDS, SDS, or a free sample for testing.

Related products

Product Description – PR81

HP RED 2456 (PIGMENT RED 81) affords a very clean bluish red shade, The standard magenta on the European Color Scale for letterpress (DIN 16 538) and offset printing (DIN 16 539) is somewhat yellower. For such printing inks, certain high solvent fastness properties are required in order to safely overlacquer the prints. P.R.81 is a strong pigment, which, as with other representatives, is especially true for the PTM types. The pigment commonly darkens noticeably as it is exposed to light. It is recommended used for water based inks.

Recommended Application：

Printing inks: offset inks, water based inks

Technical Data:

Product Information
Chemical Type Rhodamine CAS NO. 12224-98-5
C. I. Name Pigment Red 81 EINECS / ELINCS NO. 235-424-7
C. I. Constitution No. 45160 Chemical Formula C28​H31​N2​O3
Technical Performance
Full Shade Tint
Weather Resistance 4 3 Heat Stability °C 150°C
Light Fastness 6 5
Physical Properties
Physical Form Powder Resistance to Acid 4
Specific Density (g/cm3): 1.80 ± 0.1 Resistance to Alkali4 4
Specific Surface(㎡/g): 35
Oil Absorption 50
pH Value 6.0-8.0
Volatile Matter 1% max
Packaging
25kgs/bag  400kgs/Pallet
Storage Shelf Life 5 years
Should be stored in cool, dry and ventilate place.
TRANSPORTATION
Avoid inversion, sunlight, moisture and crash. Avoid damage the package.
  • Light fastness: Light fastness rating is assessed on 1 to 8 Blue Wool scale where 1 = ‘Poor’ and 8 = ‘Excellent’.
  • Heat Stability : Heat stability values given indicate the maximum temperature at which the pigment can be stoved for 10 min. on the full shade and in reductions without undergoing any significant change in shade.
  • Oil absorption: The oil absorption is determined on the basis of EN ISO 787-5 and given in g linseed oil per 100 gm. pigment.
  • Solvent bleeding: The bleeding in solvents is tested using the powder grades and the visual rating given on 1 to 5 Grey scale
    where 1 = ‘Heavy bleeding’ and 5 = ‘No bleeding”

Disclaimer – The information given in this data sheet is based on the present state of our knowledge & is intended as a general description of our products & their possible applications. Due to the multitude of formulations, production & application conditions, all the above mentioned data have to be adjusted to the circumstances of the processor. No liabilities, including those for patent rights, can be derived from this fact for individual cases. It cannot be ruled out that this product contains particles < 0.1 μm. Any user of this product is responsible for determining the suitability of Honor Pigments’s products for its particular application & to ensure that any proprietary rights & existing laws & legislation are observed.

Why Choose Honor Pigments?

  • 🌍 Global Export Expertise — Trusted by customers in 40+ countries for consistent quality and reliable supply
  • ✅ Strict Quality Control — ISO 9001 certified with batch-to-batch consistency and zero-defect policy
  • 💰 OEM Production Advantage — Competitive pricing without compromising pigment performance
  • 🧪 Technical Support — Free color matching, formulation advice and sample testing before bulk order

📩 Need more details?

Request TDS, SDS, or a free sample for testing.

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