Knowde Enhanced TDS
Identification & Functionality
- Pigment Type
- CASE Ingredients Functions
- Plastics & Elastomers Functions
- Technologies
Features & Benefits
- Labeling Claims
- CASE Ingredients Features
- Features & Benefits
Fine particle size: Pigments exhibit excellent dispersability.
Spherical shape: Offers excellent light scattering/opacity.
Bleed resistant: Presents vinyl applications never before possible.
Solvent resistant: Allows for use in wide range of solvents.
Color strength: Achieves strong colors without sacrificing cleanliness.
Broad compatibility: Formulations can be prepared in a wide range of systems.
Applications & Uses
- Applications
- Compatible Polymers & Resins
- Ink & Toner Type
- Plastics & Elastomers Processing Methods
- Applications
- Specialty Coatings/Inks
- Solvent Sensitive Systems
- Plate-out Resistant Plastic Colorants
- Bleed Resistant Vinyl Plastisols
- Colorants for Crayons
- Typical Applications
- Masterbatch
- Molding and Extrusion
- Blow Molding
- Liquid Colorant
- Vinyl Plastisol
- Calendared Film
- Low Density Polyethylene (LDPE)
- High Density Polyethylene (HDPE)
- Polypropylene (PP)
- PVC Calendaring
- Spread and Gel Coat
- Natural and Synthetic Rubber
- Processing Temperatures
MP is recommended for use in plastics encountering process temperatures up to 480oF. However, MP is unlike typical fluorescent colorants which "melt-in," because it remains intact as a pigment. Therefore, higher shear than is typically applied to fluorescent colorants is required to disperse the pigment and develop optimum color. To increase thermal stability of the MP line, the addition of 5% zinc oxide, based on pigment weight, has been found to be beneficial in all cases except those where the chartreuse or green shades are present. Zinc, in combination with either of these two colors, may cause a detrimental color shift.
- Processing Aids
In some instances, the MP series has been found to process easily without dispersion aids. However, if it is determined that processing aids are necessary, zinc-based additives should be avoided in the chartreuse and green shades (e.g. substitute calcium stearate for zinc stearate). The presence of zinc can tend to shift these colors, resulting in perceived "dirtiness".
- Color Brilliance
In both masstone and tint form, MP produces the cleanest and brightest colors available with a degree of opacity that is not present with "melt-in" fluorescent colorants
- Aging and Stability
The degree of colorfastness will be dependent on the following factors: Type of plastic, concentration of colorant, film thickness, type of exposure (outdoor versus indoor) and direction of exposure.
Properties
- Color
- Physical Form
- Insoluble in
- Water, Ethanol, Acetone, Mineral Spirits, Xylene, Ethyl Acetate, Methanol, Toluene, 2-Propanol, Methyl Ethyl Ketone
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Average Particle Size | 3-Feb | microns | — |
| Decomposition Point | 255 +/- 5 | °C | — |
| Hegman Grind | 5.0 + | — | — |
| Processing Range | max. 480 (249) | °F (°C) | — |
| Specific Gravity | 1.3 | — | — |
Regulatory & Compliance
Technical Details & Test Data
- Plate-out
One of the challenges that plastics processors have faced when handling fluorescent colorants is the occurrence of plate-out. This phenomenon occurs when lower molecular weight organic materials, such as oligomeric species or fluorescent dyestuffs, thermally decompose and separate from the compounding mixture. Consequently, these materials deposit on screws, blow-pins, and other metal processing equipment, resulting in what is commonly referred to as plateout.
Due to its thermoset nature, the MP series greatly reduces, and in many cases eliminates, the occurrence of plate-out. Therefore, a simple purge with clear has been found to be a sufficient method of cleaning. This results in less down time for the processor due to extensive equipment clean-up.
Storage & Handling
- Storage
When stored in a cool, dry environment, MP pigments have an indefinite shelf life. Colorant containers should be kept closed to minimize contamination.