FLUORESCENT PIGMENT
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Z PIGMENTS FOR PLASTICS

 PIGMENT COLOR GUIDE

ZQ PIGMENTS

 

T & GT PIGMENTS

 

HMT-SERIES THERMOSET BASES

 

STARFIRE BASE

 

 

 


Z PIGMENTS FOR PLASTICS

Z-Pigments, pecause of their good heat stability, are recommended for application in plastics.  They also offer good tinctorial strength and bright shades.

Additives:

Certain metal ions and nucleated polymers are known to cause color changes and loss of brightness with fluorescent colorants.  Studies have shown that plastic processing additives containint "free" zinc, magnesium, calcium and iron will cause deleterious color effects when used in conjunction with Z-Pigment.

Heat Stability:

The heat stability of Z-Pigment was tested on a four ounce injection molding machine.  The masimum recommended processing temperature of Z-Pigment is 575℉(300℃).

Physical Properties:

Minimum Processing Temperature 370℉(190℃)
Heat Stability 575℉(300℃
Softening Point 280℉-310℉(138℃-155℃)
Specific Gravity 1.14
Grind 4.0 Min Hegman Gage
Average Particle Size 10-12 Microns

Applications:

Polyethylene + PA (Nylon) +-
Polypropylene +- Polycarbonate +-
Polystyrene + PMMA (Polyacrylic) +-
ABS +- Rigid PVC +-
Ionomer +- Urethane +-
+ Recommended.       +- Recommended, but should be tested in individual resins.

ZQ PIGMENTS

ZQ-Pigments are an improved version of Z-Pigments.  They offer lower mold plateout, increased plastic compatibility, are mostly stronger, require lower processing temperatures, and have larger size to reduce dusting.

Chemical Nature & Dispersion Properties:

ZQ-Pigments are solid solution of fluorescent dyes in a thermoplastic modified polyamide resin.

To ensure complete color development when incorporating ZQ-Pigments into plastic resins, it is essential the minimum processing temperature of 350℉ (175℃) is reached in order to completely melt and evenly distribute the pigment throughout the plastic.

Additives:

Certain metal ions and nucleated polymers are known to cause color changes and loss of brightness with fluorescent colorants.  Studies have shown that plastic processing additites containing zinc, magnesium, calcium and iron will cause deleterious color effects when used in a plastic resin system containing ZQ-Pigment.

Heat Stabiltiy:

ZQ-Pigments offer excellent heat stability in injeciton molded plastics when compared to other thermoplastic fluorescent pigments commercially available.  The maximum recommended processing temperature is 575℉.

Typical Physical Properties:

Minimum Processing Temperature 350℉(175℃)
Heat Stability 575℉(300℃)
Melting Point 248℉-275℉ (120℃-135℃)
  ZQ-17, ZQ-18, ZQ-19 280℉-310℉ (138℃-155℃)
Specific Gravity 1.20
Particle Size 20-60 Microns

Applications:

Polyethylene + PA (Nylon) +-
Polypropylene +- Polycarbonate +-
Polystyrene + Acrylic +-
ABS +- Rigid PVC +-
Ionomer +- Urethane +-
+ Recommended.    +- Recommended, but should be tested in individual resins.

T & GT PIGMENTS

T- and GT-Pigments are based on a thermoset resin.  They are useful in applications where solvent resistance is required.  GT-Pigments have higher color strength than T-Pigments.  Both are insoluble in a greater number of solvents than are A- and AX-Thermoplastic Pigments.  T-and GT-Pigments are designed to be used in formulations and coatings where strong solvents are used and where softening by heat and pressure may be a problem.  They are also suitable for use in water based latex systems, where long term shelf stability is required.

Typical Physical Properties:

Specific Gravity: 1.37
Grind: 5.0 Min Hegman Gage
Average Particle Size: 4.5-5.0 Microns (by volume)
Decomposition Point: Approximately 195℃(383℉)
Oil Absorption (Raw X Linseed Oil): 51Lb. Oil/100 Lbs.
Bulking Value: 0.0875 Gals./Lb.
General Solubility: Insoluble in water, hydrocarbons, and many common solvents

Dispersion & Use:

T- and GT-Pigments are based on a thermoset resin permits them to be used in various coatings or inks made with nitrocellulose, polyvinyl chloride-acetate, polyamide, acrylic, chlorinated rubber and other resins which require strong oxygenated types of solvents such as aromatics, alcohols, esters or ketones.  Combinations of these solvents should be evaluated before use.

Color bleed may be a problem in some instances, usually with the red colors.  It can occur even though the pigment resin matrix is thermoset and insoluble, and the fluorescent dye is in solid solution throughout the pigment particles and not merely absorbed on the surface.  Some solvents leach enough dye from the insoluble particles so that color transfer may be noticeable when the coating surface involved contains significant amounts of plasticizers.

T- and GT-Pigments are suitable for paper coating applications, either solvent or water latex base.  Since the pigments are not softened by heat or pressure, the coated paper can be calendered without glazing or sticking to the rolls.


HMT-SERIES THERMOSET BASES

HMT-Series contain approximately 50% of a submicron-sized thermoset (crosslinked) fluorescent dyed polymer "pigment" that gives optimum heat, solvent and product resistance to the finished ink.  They contain only "clean" non-hazardous ink oils.  Inks made from these special thermoset bases are used extensively on well known publications.  They are ideally suited of ruse in advertising, newspaper supplements, circulars and other high volume direct mail pieces.  In addition, high quality sheetfed offset inks with good heat, solvent and product resistance can be formulated from these bases.  When formulating special inks for top-lacquer, these special thermoset bases are recommended.  Avoid using any cobalt drier if the inks will be subjected to any heat since this may severely darken fluorescent colrs.  This product is significantly stronger than the previous MT-Series.  This will allow the printer to achieve the desired color without pushing the ink and achieve higher press speeds.

Specifications:

Grind 6.5+Hegman Gage
Laray Viscosity 75-105 Sec @90℉(32℃), 900 GR.Wt. (Over 10cm)
Pigment 50%+/-2% Thermoset Dyed Polymer
Vehicle Type Hydrocarbon Resin Modified Alkyd
Volatile 21%+/-2% 527-578℉(275-303℃) Distillation Range
Weight/Gallon 9.4 Pounds
V.O.C. 1.66 Lb./Gal. or 198 g/l

 Attitives:

City-Country special thermoset bases contain a built-in water fighting additive that has proven very effective on-press.  In properly formulated inks, there should be no need for additional anti-emulsification additives.

If a tougher ink film is needed, it may be helpful to add a small amount of drier to the ink.  For this purpose, 6% Cerium Octoate drier is recommended.  Do not use Cobalt drier, since this will cause severe color changes in conjunction with heat.


STARFIRE BASE

STARFIRE Bases are a unique combination of ultra-fine, high strength fluorescentpigment dispersed in a rheologically controlled vehicle system.  This yields maximum color density and excellent printability.

Color Strength, Brightness & Finish:

Innovative vehicle technology has given City-Country the ability to disperse a high loading of submicron fluorescent pigment particles in the STARFIRE Bases, and yet maintain a workable rheology.

Fluorescent Color:

The increased color strength from the STARFIRE Base has not reduced the color brightness.  In fact, an increase in color brightness and color stability is possible with the recommended formulations.

Low Odor:

The STARFIRE Bases contain only severely hydrotreated ink oils.  They have been formulated to produce low odor on the press, even when using infra-red lamps as a drying assist.  The STARFIRE Bases can be used to formulate low odor inks for napkins, tablecloths and other items.

Press Performance:

Sheetfed offset inks made from the STARFIRE Bases have been run on high speed sheetfed presses at 8,000-10,000 impressions per hour and are capable of much higher press speeds with excellent performance characteristics.  Excellent tack stability, anti-emulsification properties, faster setting and excellent thorough drying characteristics are to be expected from inks formulated from STARFIRE Bases.

Typical Physical Properties:

Grind 6.5+ Hegman Gage
Laray Viscosity 75-105 Sec @90℉(900 Gr.Wt.)(Over 10cm)
Pigment Concentration/Type >50%/Thermoplastic Dyed Polymer
Vehicle/Type Proprietary/Resin Modified Alkyd
Weight Per Gallon 9.2-9.4 Lbs./Gal.
Volatile Organic Compounds 1.4-1.5 Lbs./Gal. (167.9-179.9 g/l)