At a glance
- Code
- SD
- Line
- Slow dry, TEA
- Description
- Triethanolamine-stabilised acrylic concentrates. The low-volatility amine keeps the ink open on fine anilox rolls and gravure cylinders, reducing drying-in and dot loss in fine screens and long runs. Water and block resistance develop more slowly; test blocking before rewinding or stacking.
Available colours
| Code | Colour | C.I. | Pigment % | Note |
|---|---|---|---|---|
| Y14 | Yellow, process | PY 14 | 35–40 | Standard process yellow |
| Y13 | Yellow, mid | PY 13 | 35–40 | Diarylide; stronger and slightly redder than PY 14 |
| Y74 | Yellow, greenish | PY 74 | 35–40 | Monoazo; clean greenish yellow |
| Y83 | Yellow, reddish transparent | PY 83 | 33–38 | Transparent; good fastness |
| O13 | Orange | PO 13 | 35–40 | Disazopyrazolone; bright yellowish orange |
| O34 | Orange, reddish | PO 34 | 35–40 | Disazopyrazolone; redder orange than PO 13 |
| R57 | Rubine, process magenta | PR 57:1 | 30–35 | Calcium lake; process magenta; limited alkali and soap resistance |
| R48 | Red, bluish | PR 48:2 | 30–35 | Calcium lake; bright bluish red for spot colours |
| R146 | Red, carmine | PR 146 | 30–35 | Naphthol red; good alkali resistance |
| R170 | Red, mid | PR 170 | 30–35 | Naphthol red; good light fastness |
| R122 | Magenta, quinacridone | PR 122 | 25–30 | High-fastness magenta |
| R184 | Rubine, bluish | PR 184 | 30–35 | Naphthol AS rubine; alkali-resistant, for pinks and cool reds |
| V23 | Violet | PV 23 | 20–25 | Strong dioxazine (carbazole) violet; also for shading |
| B153 | Blue, process cyan | PB 15:3 | 35–40 | Standard process cyan |
| B154 | Blue, flocculation-resistant | PB 15:4 | 35–40 | Cyan for high gloss and let-down stability |
| B151 | Blue, reddish | PB 15:1 | 35–40 | Reddish phthalocyanine blue |
| G7 | Green, bluish | PG 7 | 35–40 | Phthalocyanine green |
| G36 | Green, yellowish | PG 36 | 30–35 | Brominated phthalocyanine green |
| K7 | Black | PBk 7 | 35–40 | Furnace carbon black, ink grade; neutral tone |
| W6 | White | PW 6 | 65–70 | Rutile titanium dioxide, opaque white |
About FLYRON
FLYRON concentrates carry a high load of finely dispersed pigment in a styrene-acrylic resin solution. Ink makers let them down with water-based varnishes, emulsions and additives to make flexo and gravure inks for paper, board, corrugated, film and foil.
The three lines differ in the amine that neutralises the resin. The amine sets how fast the ink dries on press, its odour and its re-solubility, so the ink maker can choose the line that suits the press speed, the anilox or cylinder and the substrate.
Typical properties of the range
| Property | Typical value | Method |
|---|---|---|
| Pigment content | Organic colours 20–40 %; black 35–40 %; white 65–70 % (per shade) | Formulation |
| Binder | Styrene-acrylic solution resin; APEO-free; no formaldehyde donors | — |
| Other components | Polymeric dispersant; propylene glycol as humectant (about 3 %); defoamer; BIT preservative | Formulation |
| Non-volatile content | Colours 35–60 % (by shade and line; highest in SD); white 74–80 % | ISO 3251, 1 g, 1 h at 125 °C |
| pH at 25 °C | FD and MD 8.5–9.5; SD 8.0–9.0 | pH meter |
| Viscosity at 25 °C | 500–3,000 mPa·s (shade dependent) | Brookfield |
| Density | Colours 1.10–1.35 g/cm³; white 2.0–2.2 g/cm³ | ISO 2811-1 |
| Fineness of grind | ≤ 5 µm | Grindometer, ISO 1524 |
| Colour strength | Colours 100 ± 5 % (tinting strength); white 100 ± 5 % (scattering power), against standard | Drawdown at fixed let-down; K/S evaluation |
| Shade | ΔE00 ≤ 1.0 against standard | CIEDE2000 on the strength drawdown, D50/2° |
| Storage stability | No hard settling; viscosity within ± 20 % of initial after 4 weeks at 40 °C | Oven ageing; Brookfield |
Resistance guidance by pigment class. Ratings are qualitative and typical of the pigment in water-based packaging prints; the finished print depends on the let-down vehicle, film weight and substrate. Test light fastness by ISO 12040 and resistance to alkali, soap, fats and water by ISO 2836 on the final print.
| Pigment class | Shades | Light fastness | Alkali and soap | Notes |
|---|---|---|---|---|
| Diarylide yellows and oranges | Y13, Y14, Y83, O13, O34 | Moderate; Y83 good | Good | Not for packaging heated above 200 °C (section 7) |
| Monoazo yellow | Y74 | Good in full shade, lower in tints | Good | Lower heat and solvent resistance than diarylides |
| Lake reds | R48, R57 | Moderate | Poor | Avoid for soap, detergent and alkaline products |
| Naphthol reds | R146, R170, R184 | Moderate to good; R170 good | Good | — |
| Quinacridone and carbazole violet | R122, V23 | Very good | Very good | High-fastness shades and shading |
| Phthalocyanines | B151, B153, B154, G7, G36 | Excellent | Excellent | — |
| Carbon black and titanium dioxide | K7, W6 | Excellent | Excellent | — |
Values for the FLYRON range; the certificate of analysis for SD gives the release values.
How to use
- Let-down
- Typically 30–50 % concentrate (white 50–70 %) in the finished ink with water-based varnish or acrylic emulsion, plus wax, defoamer and water as needed. Add the concentrate to the stirred varnish at matching pH to avoid pigment shock
- Choosing the line
- FD for fast presses, corrugated and absorbent papers and where early water resistance is needed; MD for lower odour and longer open time; SD for fine anilox, gravure, long runs and hot pressrooms
- Compatibility
- Use with acrylic and styrene-acrylic emulsions and solution varnishes; test each new let-down vehicle for shock, seeding and viscosity rise. Avoid acids, cationic additives and salts; do not mix with solvent-based or UV inks. Build each ink from one line and adjust pH with the same amine
- Adjusting drying
- To slow an FD or MD ink in hot, dry pressrooms, blend in the SD ink of the same shade in small steps; an ink containing SD is outside the food-packaging declaration
- On press
- Check pH and viscosity regularly and correct pH before adding water. Ammonia (FD) is lost from open ducts and needs topping up; a falling pH raises viscosity and causes drying-in on the anilox. Ammonia solution and neat MEA are corrosive: wear goggles and gloves when adjusting pH
- Food packaging
- Use FD or MD for inks printed on the non-food-contact surface of food packaging; formulate the finished ink with raw materials suitable for food packaging, manufacture it under good manufacturing practice (EuPIA) and confirm compliance of the final ink and package, including odour, taint and migration
- Cleaning
- Clean presses with water and a mild alkaline cleaner before the ink dries; collect wash water for treatment and do not discharge it to drains
Storage, packing and supply
- Storage
- Closed original containers, 5–35 °C; avoid heat above 40 °C; protect from frost, which destroys the dispersion. Stir gently before use; keep FD containers closed, as ammonia loss thickens the concentrate
- Shelf life
- 12 months from date of manufacture in unopened original containers
- Packing
- 25 kg HDPE pails, 200 kg drums, 1,000 L IBC
Values are typical and do not form a specification. Test the product under your own conditions before commercial use.