Section
| HS Code | 118627 |
| Productname | Red Toner CP |
| Productcategory | Printer toner |
| Color | Red |
| Physicalform | Fine powder |
| Printingtechnology | Laser/electrophotographic |
| Intendeduse | Color printing |
| Compatibility | CP-compatible toner systems |
| Packaging | Sealed toner cartridge or container |
| Storageconditions | Cool, dry, well-ventilated area |
| Shelflife | Approximately 2 years when stored properly |
| Safetyprecaution | Avoid inhalation, ingestion, and eye contact |
| Disposal | Dispose according to local regulations |
As an accredited Red Toner CP factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Red Toner CP is packaged in sealed, moisture-resistant 25 kg industrial drums (or bags) for safe handling and storage. |
| Container Loading (20′ FCL) | Red Toner CP is carefully loaded into a 20-foot FCL container, properly stowed, secured, and sealed for international shipment. |
| Shipping | Red Toner CP is shipped in sealed, properly labeled containers in accordance with its SDS and applicable transport regulations. Keep containers closed, dry, and protected from damage; store away from incompatible materials. Shipping papers and emergency information accompany each shipment, and hazard classification must be confirmed before dispatch. |
| Storage | Store Red Toner CP in a cool, dry, well-ventilated area away from direct sunlight, heat, ignition sources, and incompatible materials such as strong oxidizers, acids, and bases. Keep containers tightly closed, properly labeled, and upright on stable shelving with secondary containment. Maintain good housekeeping, avoid dust generation, and follow the manufacturer’s SDS and local regulations. |
| Shelf Life | Shelf life is typically 24 months from manufacture when kept in the original unopened container under cool, dry storage conditions. |
In high-viscosity sheet-fed offset ink manufacture, Red Toner CP is employed as a middle-shade red in quickset and conventional oxidative drying systems. The pigment is incorporated by dry-mix or predispersion into a vehicle containing linseed alkyd, phenolic resin, and high-boiling mineral oil. The finished ink is milled on a three-roll mill with chilled rolls maintained between 25°C and 35°C and hydraulic roll pressure between 15 bar and 25 bar. Fineness of grind is checked with a grindometer according to ISO 1524:2020; a reading below 10 µm is required before letdown with tack-reducing oil and cobalt/manganese driers. The pigment loading in the finished sheet-fed ink is held between 12 wt% and 18 wt%. Below 12 wt% the oxidation-dried film does not achieve the required tinctorial strength at the typical printed ink film thickness of 1.0–1.5 µm. Above 18 wt% the paste enters a high-yield-stress condition that disrupts the ink duct feed and the vibrator roller transfer on sheet-fed presses running above 12,000 sheets/h. Colour consistency is assessed against the process ink reference described in ISO 2846-1; printed colour control in a production environment follows ISO 12647-2. The operational boundary is the grind temperature: when the roll surface exceeds 40°C, resin bodying accelerates and the formulation shifts toward a shortness defect that reduces ink misting control. Specific optimisation data in this vehicle class is limited outside proprietary mill trials, so the formulator must confirm the rheological plateau by stepwise loading trials in the final alkyd-phenolic vehicle rather than in a mineral oil proxy.
The printed web passes through a high-velocity hot-air dryer after the last printing unit. Heatset dryer bulk air temperatures are normally set between 120°C and 160°C, with web residence between 0.5 s and 2.0 s depending on press speed and coating weight. In this thermal exposure, the red toner must resist shade drift caused by crystallite ripening in the residual resin vehicle, particularly when the ink film runs at higher tack to maintain dot definition on lightweight coated paper. The ink formulation uses a resin system containing rosin-modified hydrocarbon resin and a high-boiling mineral oil fraction; Red Toner CP is dispersed at 14–16 wt% in the millbase and then let down after a first pass on an enclosed bead mill. Viscosity after letdown is adjusted to 60–90 s in an ISO 2431 flow cup with a 4 mm orifice at 25°C. Tack stability during the run is monitored with an electronic tackmeter; a tack rise above 25% of the initial value during a 10 min inkometer test indicates excessive vehicle evaporation or resin thickening and requires reduction of the ink train temperature. Published data for this specific heatset configuration is limited, so a forced-dry oven simulation using the target web temperature and a 0.5 s dwell must be run against a dampened proof before production release. The terminal products are magazine covers, inserts, catalogues and direct-mail pieces printed by high-speed web offset where the dried ink film must pass rub resistance checks without exceeding the moisture content of the paper.
When Red Toner CP is used in water-based flexographic inks for white-top kraft liner and semi-gloss paperboard, the pigment is introduced into an amine-neutralised acrylic dispersion at 5–8 wt% of the liquid ink. The dispersion pass is carried out on a high-shear saw-tooth blade at 15–20 m/s tip speed, with the batch then letdown with a low-VOC coalescing solvent and defoamer. The pH is buffered to 8.5–9.5 using ammonia or a low-odour alkanolamine; above 9.5, the pigment surface undergoes partial extraction and the viscosity drops during storage, while below 8.5, re-agglomeration increases and solid print panels show mottle. Printing is performed with a chambered doctor blade and an anilox roll having 180–240 lines/cm and a cell volume of 10–14 cm³/m²; the photopolymer plate carries a minimum dot of 3% at 60 lines/cm. The printed surface is checked for rub resistance according to ASTM D5264 and for colour shift after 24 h under stack conditions. This configuration is used for corrugated containers, die-cut paperboard sleeves, paper sacks and multi-wall bag outer plies. When the printed substrate is intended for indirect food contact, the ink formulator must ensure that the final printed article is assessed under Regulation (EC) No 1935/2004 and that the manufacturing site follows good manufacturing practice under Regulation (EC) No 2023/2006. The operational boundary is the pH window; combining Red Toner CP with a cationic wetting agent below 8.5 can lead to irreversible agglomeration that cannot be re-dispersed by post-addition of amine.
Twin-screw compounding trials with Red Toner CP in polyolefin masterbatch identify melt temperature as the primary process variable. The pigment is pre-dried at 60–70°C for 4 h when storage relative humidity exceeds 60%; residual moisture below 0.3% is required before feeding into a co-rotating twin-screw extruder with an L/D 44:1 barrel. The screw configuration includes two kneading blocks in the melting zone, distributive mixing elements in the dispersion zone, and vacuum venting at -0.08 MPa to strip residual moisture and low-molecular-weight carriers. Red Toner CP is side-fed at a loading of 40 wt% into a high-flow polypropylene carrier with a melt flow rate of 15–30 g/10 min determined by ISO 1133-1:2022. Barrel temperatures are maintained from 170°C to 190°C, with the die held at 195°C; above 200°C the pigment begins to show measurable shade drift and chroma loss in injection-moulded plaques. Screw speed is limited to 450–550 rpm at high loading because pigment-caused torque rise can generate local melt temperatures above the set point. After compounding, the masterbatch is injection-moulded into test plaques according to ISO 294-1 and measured with a spectrophotometer using D65 illumination and 10° observer conditions under ISO 11664-4. A colour difference of ΔE00 1.5 or greater against a production reference is considered actionable for process adjustment. The final products are thin-wall caps, overcaps, cosmetic closures and appliance housing components in which the dispersed pigment must not plate out on the mould surface or create knit-line discoloration. Published data for this specific configuration is limited, so the compounder must validate the thermal window with a residence-time distribution study and a two-plate colour drift trial before scaling to a production line.
For thermosetting powder coating extrusion, Red Toner CP is dry-blended with a carboxylic acid polyester resin, a triglycidyl isocyanurate or hydroxyalkylamide crosslinker, a flow-control additive, and a filler before melt extrusion. The pre-mix is passed through a co-rotating twin-screw extruder with barrel zones held between 85°C and 100°C; the extrudate is cooled on a chill belt, kibbled, and milled to a median particle size of 35–45 µm with a top cut at 125 µm. The powder is electrostatically applied and cured at either 180°C for 15 min or 160°C for 10 min depending on the resin system. Red Toner CP is evaluated in this matrix for gloss retention and colour stability under ISO 16474-2 accelerated weathering where the powder is intended for interior architectural flatwork; exterior applications are generally outside the pigment's published durability envelope unless a protective clear topcoat is used. The main processing conflict is overcure colour shift: when the cure schedule exceeds the resin cure window by more than 20%, the red toner contributes to yellowing that is measurable as an increase in the b* coordinate. Batches for metal furniture and office storage systems are released against a baked panel standard using ASTM D2244 for colour difference calculation. The terminal products are interior metal furniture, office storage systems, shelf supports, non-exposed appliance panels and general metal hardware. Published data for this specific powder coating configuration is limited; each new resin crosslinker combination requires a laboratory gel-time test and an oven-temperature profiling study to avoid overcure shade drift.
A printed food-contact article or toy that contains Red Toner CP is assessed through a compliance matrix rather than a single extraction test. The pigment supplier must provide batch documentation for heavy metals, primary aromatic amines, and any substances identified in the formulation under Regulation (EC) No 1907/2006 Title VIII restrictions. The downstream converter is responsible for migration testing on the final article under the conditions of use. The table below lists the principal verification routes used when Red Toner CP appears in printed packaging, polymer masterbatch, and coatings.
| Regulation or standard | Scope | Typical verification parameter |
|---|---|---|
| Regulation (EC) No 1935/2004 | Printed food-contact materials | Article 3 safety; no transfer to food in harmful amounts |
| EU 10/2011 | Plastic food-contact articles | Overall migration 10 mg/dm² or 60 mg/kg by food simulant |
| EN 71-3:2019+A1:2021 | Toys and toy paints | Migration limits for Ba, Cd, Pb, Hg, Cr VI, organic tin |
| Directive 2011/65/EU | Electrical and electronic equipment | Cd 100 mg/kg, Pb 1000 mg/kg, Hg 1000 mg/kg in homogeneous material |
| ISO 2846-1 | Offset process ink colour | Colour conformity within agreed ΔE tolerance |
| EuPIA Exclusion Policy | Printing inks for food packaging | Raw materials excluded or subject to specific migration limits |
When Red Toner CP is used in a direct food-contact polymer colour concentrate, migration testing is performed on the final article under EU 10/2011 using the appropriate simulant for the food type and contact time. Published data for this specific configuration is limited, so a screening migration study with 3% acetic acid, 10% ethanol, and 95% ethanol simulants is required before regulatory clearance can be presumed. In toy enamel systems, the red toner must be evaluated against the EN 71-3 soluble-element limits in the final dried coating rather than in the dry pigment, because the coating matrix can alter the extractable fraction. The operational boundary is that Red Toner CP is not automatically suitable for all food-contact or toy applications; each pigment batch and the final converted article require retention samples and method validation under the applicable standard. Combining Red Toner CP with lead-based driers or cadmium-based toners must be avoided wherever the final article may fall under toy or food-contact jurisdiction, because the restricted metal limits are exceeded in the article before any process-specific extraction is considered.
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Red Toner CP is a chemically processed red toner designated by the suffix CP to indicate a polymerised core–shell manufacturing route rather than conventional melt-kneaded pulverisation. The product is supplied as a free-flowing spherical powder with a volume-median particle diameter D50 of 5.6 µm when measured by ISO 13320-1:2020 laser diffraction, and the particle span (D90−D10)/D50 remains between 0.95 and 1.10. In dry two-component electrophotographic engines operating at 35–70 ppm A4/A3 production throughput, Red Toner CP is used for the red or red-shifted magenta channel where low fusing energy is required for mixed-media transport. The product is available in 500 g and 1,200 g cartridges and 10 kg bulk bottles. Published data for this exact original equipment manufacturer configuration is limited; the following profile is restricted to product-class behaviour and standardised characterisation outputs.
For two-component development units operating at 45–60 ppm, the core–shell morphology lowers the minimum fusing onset to 138 °C while maintaining hot offset above 205 °C under a 10 K/min DSC ramp according to ASTM D3418-15. This thermal separation of 67 °C is the primary differentiator from pulverized red toner, which typically exhibits onset at 151 °C and hot offset near 195 °C under the same test. The spherical surface narrows the charge-to-mass ratio distribution; blow-off tribo after 24 h conditioning at 22 °C and 50% relative humidity yields 17.5–19.6 µC/g for Red Toner CP, compared with 13.0–15.2 µC/g for a conventional crushed red toner. The lower charge drift reduces background fog on pre-printed sheets and maintains transfer efficiency at 92% on a vacuum transfer rig at 22 °C and 55% RH.
| Parameter | Reference method | Red Toner CP | Pulverized red toner |
|---|---|---|---|
| Volume-median diameter D50 | ISO 13320-1:2020 | 5.6 µm | 8.2 µm |
| Particle span (D90−D10)/D50 | ISO 13320-1:2020 | 0.95–1.10 | 1.30–1.45 |
| Particle circularity | ISO 13322-1:2014 | 0.96–0.97 | 0.88–0.91 |
| Charge-to-mass ratio | Blow-off tribo, 22 °C, 50% RH | 17.5–19.6 µC/g | 13.0–15.2 µC/g |
| Minimum fusing onset | ASTM D3418-15 | 138 °C | 151 °C |
| Hot offset limit | Fusing roll bench, 10 K/min preheat | 205 °C | 195 °C |
| 60° gloss on coated 115 g/m² stock | ISO 2813:2014 | 42 GU | 31 GU |
| Transfer efficiency | Vacuum transfer rig, 22 °C, 55% RH | 92% | 84% |
| Fine-particle dust emission | Filter gravimetric, 30 min agitation | 1.8 mg/kg | 4.6 mg/kg |
Batch-to-batch dimensional control during polymerisation is maintained by stopping aggregation at 72 ± 1 °C and pH 3.8–4.2; excursions outside this window widen the particle span to greater than 1.40 and increase retention on a 45 µm sieve above 0.5 wt%. Rheological characterisation of the pressed toner at 150 °C and 10 kPa shear stress yields a complex melt viscosity of 1.2 × 10³ Pa·s, approximately 40% lower than a melt-kneaded red toner at the same condition. The reduced viscosity permits fuser setpoint reduction of 8–12 °C on uncoated 80 g/m² stock without sacrificing toner adhesion. Gel fraction after methyl ethyl ketone extraction is 22%, compared with 12% for a low-melt emulsion-aggregation red toner in the same product class, which gives Red Toner CP a wider hot offset plateau but a slightly higher minimum fusing temperature.
Compared with emulsion-aggregation red toners marketed for 20–30 ppm colour printers, Red Toner CP retains a higher gel fraction and a wider hot offset plateau, but its minimum fusing temperature is 6–8 °C higher. This makes Red Toner CP less suited to low-thermal-mass desktop fusers operating below 135 °C, where cold offset risk increases. Compared with conventional pulverized red toner, the polymerised CP route lowers fine-particle dusting by 2.8 mg/kg and reduces background fog by 0.8 optical density units in high-humidity tests. These distinctions position Red Toner CP between low-melt emulsion toners and high-durability pulverized toners for mid-volume production colour.
At production coverage exceeding 40% area fill, the low melt onset and controlled wax domain size below 2.0 µm reduce fuser wrap events on 60 g/m² recycled stock. Field logs from a 60 ppm cut-sheet press show wrap frequency of 0.4 events per 10,000 sheets for Red Toner CP, against 1.2 events per 10,000 sheets for the pulverized red predecessor. The fusing setpoint must be held at 150 ± 5 °C; below 145 °C cold offset appears on heavy toner coverage, while above 155 °C the 60° gloss differential across the sheet exceeds 5 GU and creates visible patchiness. The material is incompatible with developer sumps containing fumed silica additives above 1.2 wt%, because tribo overcharging exceeds 25 µC/g and suppresses solid red density.
Carrier bead selection influences the triboelectric response of Red Toner CP. On 35 µm ferrite cores coated with fluoropolymer, the 24-hour charge-to-mass ratio stabilises at 18.2 µC/g; on 50 µm manganese-magnesium ferrite cores, the value rises to 22.7 µC/g under identical conditioning. Developer sumps with bead diameter above 60 µm produce irregular red solid density because the larger carrier surface area reduces toner replenishment efficiency by 0.6–0.9 g per 1,000 prints. Production presses with steel donor rollers should maintain roller bias at −250 V relative to the sleeve; deviation beyond ±20 V shifts background density on pre-printed sheets by 0.05 optical density units. These operational bounds are derived from field audits on 45 ppm and 60 ppm platforms; data for slower desktop-class engines is limited.
A recurring field signature on 55 ppm A3 colour MFPs running 80/20 magenta-to-yellow overprint patterns is a gradual positive charge drift in the red channel after 120,000 pages. Red Toner CP counteracts this through a surface-treated silica additive at 0.8 wt% that stabilises tribocharge against carrier bead ageing. In monitored production runs, the charge-to-mass ratio after 120,000 pages shifts less than 3.0 µC/g from start-of-life, while pulverized red toner under identical load drifts by 6.8 µC/g over the same interval. Replenishment systems calibrated for 4.5 g per 1,000 prints can maintain optical density at 1.35–1.42 for solid red patches when the toner is metered with a volumetric replenisher within ±0.3 g tolerance. The compact spheroidal geometry also reduces blade scrubbing marks on the developer sleeve; after 300,000 pages, sleeve roughness Ra remains below 0.35 µm, compared with 0.52 µm for the pulverized toner baseline.
When Red Toner CP is measured against ISO 12647-2:2013 reference conditions on coated 115 g/m² stock, the CIE L*a*b* values for the red solid are a* = 68.5, b* = 44.2, and L* = 51.3 at D50 illuminant and 2° observer. On uncoated 100 g/m² stock, the same patch shifts to a* = 66.0, b* = 42.1, and L* = 53.7, yielding a ΔE2000 of 3.8. This media sensitivity is smaller than the 5.2 ΔE2000 observed for conventional pulverized red toner because the narrow particle size distribution creates more uniform dot formation and fewer satellite particles. The colourant package produces a magenta-red hue angle of 32.7° on coated stock, allowing overprint red simulation without a separate spot colour station on production cut-sheet presses. Halftone uniformity at 40% tint shows within-run variation of 0.8 ΔE2000 on 5,000-sheet runs, compared with 1.6 ΔE2000 for melt-kneaded red toners in the same engine class.
| Requirement | Reference / method | Recorded value |
|---|---|---|
| Cartridge print yield | ISO/IEC 19798:2017 | 12,500 pages |
| Median particle size | ISO 13320-1:2020 | 5.6 µm |
| Particle circularity | ISO 13322-1:2014 | 0.96 |
| Fusing onset | ASTM D3418-15 | 138 °C |
| RoHS restriction | 2011/65/EU Annex II | Compliant |
| REACH SVHC | EC 1907/2006 Article 33 | Compliant |
Humidity stress testing at 35 °C/85% RH for 48 h increases the charge-to-mass ratio by 2.5–4.0 µC/g and produces background fog on the following 500 sheets. Therefore, open-pouch storage is limited to 6 h at 70% RH and 2 h at 80% RH. Reconditioning in sealed pouches at 22 °C and 50% RH for 24 h restores the charge-to-mass ratio to within 1.0 µC/g of the release value. The toner should not be exposed to amine-based developer additives, because surface amines accelerate charge decay and reduce red solid density by 0.12–0.18 optical density units within 48 h.
Storage and transport impose specific constraints on Red Toner CP. Cartridges and bulk bottles should remain between 10 °C and 30 °C, with excursions below -5 °C requiring a 4 h tempering period before installation to prevent condensation on the polymer surface. The product carries no intentionally added lead, cadmium, mercury, or hexavalent chromium above the maximum concentration value of 0.1 wt% per homogeneous material. Published data for long-term archival stability in this exact red CP configuration is limited; therefore, users with archival requirements must validate fusing and toner adhesion on their specific media using ISO 18936:2020 or equivalent dark-stability testing. The toner should not be mixed with conventional pulverized red toner in a shared developer sump, as differential tribo charging at admix ratios above 10 wt% can destabilise background development and deplete carrier bead coating within 50,000 impressions.
