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1. What can I do with the photoluminescent pigment?
2. How much Photoluminescent pigment does it take?
3. How to make photoluminescent printing ink
4. Using for Luminous Printing Ink
5. How to make photoluminescent plastic
6. Master Batch Manufacturing
7. Concocting Illuminating Paints
8. Others a variety of luminous products
9. UV phosphors specification and security printing
10.  Reflective powder screen printing and reflective film
11. Contrast of strontium aluminate phosphorescent powder and zinc sulfide pigment
12. About organic photoluminescence
13. How to distinguish luminous powder and fluorescent pigment
14. About Phosphorescent Emergency
15. How to use luminous powder to achieve the best results?
16. Photoluminescent pigments application success case


1. What can I do with the photoluminescent pigment?



2. How much Photoluminescent pigment does it take?

This universal question has one answer. It is up to you. The amount of photoluminescent pigment to medium will depend on how much glow desired, cost effectiveness, type of application method etc. The Basic Guidelines dictate from 10% to 50% by weight. If you are producing a low cost item, then a lower percentage would work best for you. If you are screen printing shirts and want to make only one pass, a higher percentage would work better. Please also consider the particle size of the powder and the color of the surface to which the medium is going to be applied. Experimentation will be the best method of determining ratios after following the guidelines found on this paper. Do not hesitate to call us for further help or to answer any other question you might have. We look forward to working with you! As to the Photoluminescent film , you can silk screen printing any safety symbols or pictures on the surface, for safety purpose or just for decoration .The screen printing ink you use is not luminous, the bottom is luminous, so you can see it in the dark! You can also digital carving it into any shapes. Imagining that you stick the moon or star images to the kid's ceiling, they would feel very safe at night.


3. How to make photoluminescent printing ink:

1） The choice of resin.
(1)  Apply neutral transparent resin   ( Use transparent inks with pH levels around 7). We’d better to choose the resin for uncolored or transparent.
(2)  Choose different transparent oil to mix into printing ink according to different materials. For instance, to print on metal, the mixed oil for metal should be chosen; print on PVC materials, the mixed oil for PVC material should be chosen.　
2） The choice of pigment.
Regarding the particle size of pigment, your better choice is 300grid/cm2(our specification of RBBx02,RBG x02). Because the pigment should be pass the silk-screen. Furthermore, bigger particle size will result in the more rough surface.

3） The dosage of PL pigment.
Generally speaking， 20%-50% by weight is the best ratio for mixing photoluminescent pigment to a vehicle. The percentage depends on how much glow is desired, how many passes you want to make, the screen mesh size, etc. If the base is a other color than white， you may need to add more pigments to achieve desired results. If the printing ink contains more luminous powder, the radiation degree will be higher and glow time will be longer.
4）  The technics of confect.
(1) Due to the nature of the photoluminescent pigment, an anti-settling agent may be required. photoluminescent pigment is heavier than most vehicles and settling does occur. Therefore use a viscous vehicle or an anti-settling agent,  always stir before printing.
(2) Do not use heavy metal compound as additive.
(3) Do not grind the photoluminescent pigment. If there is deposit, use containers with ceramic or glass inner and stir it with high speed.
(4)  Due to the nature of the photolumienscent pigment, it can deposit after long time storage. Just stir it while using, the deposit will not effect the luminosity.
(1) The photoluminescent pigment will be dissolved in water somewhat and decomposed in acid liquid, so it can not be used in water-solubility and acidity solution(except for specially remarked).　　　　　　　　　
(2) The storehouse should be ventilated and dry, and the photoluminescent pigment should avoid to be affected with damp. It should be kept airproof if the photoluminescent pigment is not used totally.

(3) The afterglow brightness of photoluminescent pigment will diminish if photoluminescent pigment is gritted on the surface of the metal, so it can not touch metal.


4. Using for Luminous Printing Ink:

(1) Viscosity of ink should be about 3000-5000 micro-poises. During printing, viscosity should be adjusted by using a diluting agent based on printing speed.
(2) In order to get ideal printing pattern, we can choose meshwork with less 200 grid/cm2 to make plate. If we use the meshwork of less mesh, the ink layer will be print more thick, then we can get more bright pattern. So the meshwork with 80-120 grid/cm2 is ideal.
(3) Apply a white background coat under the luminous material layer to improve afterglow. Having the glow on top of any other color will diminish the glow strength.
(4) Regarding the thickness of printing ink layer, 100 um film thickness is required to achieve the best results. If you want the maximum luminous effect use 130-150 um thickness. Sometimes more than one pass will be necessary to obtain the level of glow required, the second or more pass should wait until the last layer has dried.
(5) If screen printing clothes try to use white fabric, any other color will decrease the glow. If using a non-white fabric, place a white layer below the luminous layer for the best glowing effect.

(6) One kilogram of dry photoluminescent pigment can cover an area roughly 3.3 square meters or 12 square feet with a 150 um thick film. One gram covers approximately 25 square centimeters.


5.How to make photoluminescent plastic

These are the guidelines for using Photoluminescent pigment in Plastic. You can use our photoluminescent plastic pellets or Master Batch instead saving you time and money. See how to use photoluminescent plastic granule or master batch for details.
1. You can mix photoluminescent pigment in with acrylic, polyester, polypropylene, epoxy, PVC, polyethylene (HDPE, LDPE etc) polymers.
2. You can extrude, mold, dip and cast this material.
3. Use less photoluminescent pigment than other ZnS:CU luminous pigments.
4. Keep the temperature low as possible while extruding.
5. Master Batches of photoluminescent material must be completely dried up before usage.


6. Master Batch Manufacturing

1. Clean the interior of the extruder before manufacturing with the plastic master batch.
2. Keep the resin and pigment dry before the extruding process is started.
3. It is recommended to use a machine with twin hoppers and a distributive screw design. Use one of the hoppers to feed the resin and additives and the second for the photoluminescent pigment. Doing so will decrease the abrasion to the extruder surfaces.
4. Do not stir for a long time because this might darken the pigment/resin.
5. Keep the processing temperature 10 degrees higher than a normal run of plastic.
6. Clean the extruder again by running clear resin through until clear resin can be seen coming out of the extruder.
7. Use ceramic, glass or hard metal containers because the photoluminescent pigment will react to heavy metals causing discoloration.
8. Mix the photoluminescent pigment with liquid paraffin. Ratio of the liquid paraffin to the plastic particle is 1 -1.5% of the plastic particle.
9. Using the white mine oil makes the photoluminescent pigment stick evenly with the plastic.


7.Concocting Illuminating Paints

Illuminating paints are made of photoluminescent pigment, organic resin, organic solution and auxiliary agents. The components determine the functions of the paints

1) Select resin and varnish
a) The absorbing functions are determined by the size of pellets. So preferably select the resin and varnish of without color or good transparency.
b) As the pigment is a substance with low alkalinity, it is recommended to select the resin with neutral or mild acidity.
c) Preferably select the resin or varnish; epoxy resin, polyurethane resin, amino varnish, polyster resin, acrylic acid resin, etc.

2) Select photoluminescent Pigment
The size of the pellets of the pigment for paints should be smaller in size, so preferably choose the pigments of type RBB-603, RBB-403,RBB-203,RBG-203,RBG-303 etc.

3) Select Agent　  
The agents used for photoluminescent paints are mainly dispersing agents and sediment-free agents.
Dispersing agents: Methyl xylene solution with 1% of density
Sediment-free agents: Silica

4) Dosage of photoluminescent Pigment
Decide dosage in accordance with the desired brightness and emitting duration. It is recommended to make the portion 15%-50%. The optimal match should be 30%.

5) Concocting Illuminating Paints
a) Select Receptacle: Glassware, pottery, interlining of enamel, plastic recepticle.
b) Technics of Crafts: Preferably use the high-speed mixer to formulate illuminating ink. The procedure is: put resin inside receptacle and add agent before stirring. Then add in sequence the sediment-free agent, photoluminescent pigment and begin to increase spinning pac

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