Product description
FLYRON HP dispersions are binder-based, medium-dry pigment dispersions in an acrylic resin solution neutralised with monoethanolamine (MEA). High-quality pigments are nano-milled to a narrow particle-size distribution, giving high chroma, colour strength and transparency with long-term stability.
The acrylic binder and performance additives make the dispersions compatible with the main water-based ink and coating systems without affecting final properties, so ink makers can build flexo and gravure inks for paper, board and film from one dispersion range.
Features and benefits
Excellent pigment wetting and dispersion; high colour strength, chroma and transparency.
Good printability on high-speed flexo and gravure presses; low foam generation.
Good alkaline stability and broad compatibility; suitable for paper and film substrates.
APEO-free and formaldehyde-free.
Product range
| Code | C.I. | Colour | Pigment % | Heat stability °C | Light fastness, full shade | Light fastness, tint |
|---|---|---|---|---|---|---|
| WHP-PY13 | PY 13 | Yellow, mid (diarylide) | 45 | 200 | 4 | 3 |
| WHP-PY14 | PY 14 | Yellow, process (diarylide) | 45 | 200 | 4 | 3 |
| WHP-PY74 | PY 74 | Yellow, greenish (monoazo) | 45 | 140 | 6 | 4 |
| WHP-PY83 | PY 83 | Yellow, reddish transparent (diarylide) | 30 | 200 | 6 | 5 |
| WHP-PO34 | PO 34 | Orange (disazopyrazolone) | 44 | 150 | 5 | 4 |
| WHP-PR2 | PR 2 | Red, yellowish (naphthol AS) | 40 | 180 | 5 | 4 |
| WHP-PR48:3 | PR 48:3 | Red, scarlet (strontium lake) | 40 | 180 | 5 | 4 |
| WHP-PR57:1 | PR 57:1 | Rubine, process magenta (calcium lake) | 44 | 175 | 4 | 3 |
| WHP-PR112 | PR 112 | Red, bright (naphthol AS) | 43 | 177 | 6 | 5 |
| WHP-PR122 | PR 122 | Magenta (quinacridone) | 32 | 200 | 7 | 5 |
| WHP-PR184 | PR 184 | Rubine, bluish (naphthol AS) | 35 | — | 5 | 4 |
| WHP-PR254 | PR 254 | Red, high performance (DPP) | 35 | 200 | 8 | 8 |
| WHP-PB15:3 | PB 15:3 | Blue, process cyan (phthalocyanine) | 40 | 260 | 8 | 8 |
| WHP-PV23 | PV 23 | Violet (dioxazine) | 25 | 260 | 8 | 8 |
| WHP-PG7 | PG 7 | Green, bluish (phthalocyanine) | 44 | 260 | 8 | 8 |
| WHP-PW6 | PW 6 | White, opaque (rutile titanium dioxide) | 60 | — | — | — |
| WHP-PBlk-7 | PBk 7 | Black (carbon black) | 35 | 260 | 8 | 8 |
| WHP-PBlk-7HS | PBk 7 | Black, high strength (carbon black) | 40 | 260 | 8 | 8 |
Light fastness on the blue wool scale (1 = very poor, 8 = outstanding), full shade and tint, for the pigment in a water-based print. Heat stability is that of the pigment and matters only for prints heated during conversion. Special shades and strengths are made to order.
Typical properties
| Property | Typical value | Method |
|---|---|---|
| Appearance | Smooth, homogeneous liquid; colour according to grade | Visual |
| Binder | Styrene-acrylic solution resin, neutralised with monoethanolamine (MEA) | — |
| Non-volatile content | 40–60 % by grade (white about 72 %) | ISO 3251, 1 g, 1 h at 125 °C |
| pH at 25 °C | 8.0–9.0 | pH meter |
| Viscosity at 25 °C | 300–1,500 mPa·s (grade dependent) | Brookfield |
| Particle size | D50 100–200 nm | Laser diffraction |
| Density | Colours 1.10–1.35 g/cm³; white about 1.85 g/cm³ | ISO 2811-1 |
| VOC content | About 50–60 g/L (white about 80 g/L) | EU 2004/42/EC definition, product as supplied |
| Formaldehyde; APEO | Free (no formaldehyde donors; APEO-free raw materials) | Formulation |
| Colour strength; shade | 100 ± 5 % and ΔE00 ≤ 1.0 against standard | Drawdown at fixed let-down |
Compatibility and use
- Compatible with
- Acrylic emulsions; styrene-acrylic resins; water-based polyurethane dispersions; common water-based ink additives
- Recommended dosage
- 10–30 % in the finished ink formulation, according to colour strength required
- Processing
- Stir well before use. Add to the stirred let-down vehicle under moderate agitation. Keep the ink at pH 8.0–9.0, adjusting with MEA. Use suitable wax, defoamer and wetting additives
- Compatibility check
- Test each new let-down vehicle at the intended ratio for shock, seeding and viscosity rise; avoid acids, cationic additives and salts
- Cleaning
- Clean equipment with water and a mild alkaline cleaner before the ink dries
Storage and packing
- Storage
- Tightly sealed containers between 5 and 30 °C. Avoid freezing and prolonged exposure to air
- Shelf life
- 24 months from date of manufacture in original sealed packaging
- Packing
- 5 kg, 20 kg and 200 kg HDPE containers
Regulatory and safety
All grades: Warning; Skin Irrit. 2, H315 and Eye Irrit. 2, H319 (monoethanolamine); EUH208, contains 1,2-benzisothiazol-3(2H)-one (BIT). Wear safety goggles and nitrile gloves. Not regulated as dangerous goods for transport.
VOC about 50–60 g/L (white about 80 g/L) as supplied, from propylene glycol and MEA. APEO-free; no formaldehyde donors. No lead, cadmium, mercury or hexavalent-chromium pigments.
Diarylide pigments (PY 13, PY 14, PY 83) can release 3,3′-dichlorobenzidine above about 200 °C: do not use these grades in inks heated above 200 °C in processing or use.
Food packaging: the manufacturer of the finished product and the packer are legally responsible for the suitability of the food packaging for its intended use. Validation of the printed packaging by a certified institute is recommended; both materials and the manufacturing process affect conformity.
Values are typical and do not form a specification. Each delivery is released against its certificate of analysis. Test the product under your own conditions before commercial use.
