Why does phosphorescent tape glow?

There are two principles of luminescence in the phosphorescent tape:
One is that the phosphorescent tape USES a natural mineral that can store light. When the outside world darkens, it releases some of the stored light naturally, creating a luminous effect.
The other is that the phosphorescent tape USES non-woven fabric as the raw material. After being irradiated by the uv lamp, it produces the effect of starting light.
Usually what we call the luminous principle is the first kind.
The fluorescence materials used today are mainly white powders of zinc sulfide or copper sulfide. When they are exposed to light, they absorb a small amount of energy, and when they leave the light, they emit a faint glow that is green.
Very little activator is often added to the fluorescene: 1 parts per million of cupric chloride and cupric nitrate increase brightness; Adding materials such as manganese chloride or silver nitrate can produce different colors of light.

Temperature change ink is also used in the Teapot

 Since ancient times " need a good pot of tea ," said one , photochromic masterbatch is a teapot for the top grade of tea utensils . Teapot territory of China , is the origin of the best Yixing . The Teapot culture, but also Chinese traditional culture can not be an integral part . Teapot is a practical daily life utensils for tea and tea drinking . Teapot in Yixing, Jiangsu origin , also known as Yixing teapot . Teapot making its long history and ancient and beautiful art form become a kind highly collectible collectibles and appreciate the value of art - ink temperature change .
Teapot , Jiangsu Yixing most prestigious. Began in the Northern photochromic sheets, flourished in the Ming and Qing dynasties , a modern prosperous during the peak period is unique in the history of purple , diversification celebrity men , technology and styling , more so purple added a mystery. Now Yixing purple clay teapot , purple crafts , purple discoloration Cicada , color kettle , purple vase , purple mural , purple flower pots , purple sculpture , purple and purple decorations tea sea . Have developed a unique style features complete .

Features luminous quality , non-toxic harmless

It is because of the characteristics of high-quality non-toxic luminous powder makes the whole process does not require any other chemical raw materials, the real environmental pollution . Through the luminous technology to optimize the process , luminous masterbatch process is also very simple, usually twenty-three hours to master all the processes. As an innovative product , moonlight ice painting to fill a number of gaps in the industry , the rapid spread of a new generation of environmentally friendly applications.
Other eye-catching and luminous products due to too affected by the wavelength of the night waking unintentional glance , it is no longer difficult to sleep. The light emitted by luminous products like moonlight , soft eye-catching but not stimulate human vision, so as to avoid this situation. Compared to other masterbatch glow in dark, products with luminous at night not only to indicate the text , but can also display images. Instructions to identify more humane , and thus greatly increase the scope of use . Not only for business and home office spaces , but also can be widely used hotel , KTV and other entertainment fields . Not only functional, but also more grades .

Identification of the invoice with the temperature change ink

Temperature change ink ! As the name suggests , the ink temperature change as the temperature changes that will produce a color change , because it is this characteristic , it is used in a number of special items above anti-counterfeiting technology , powdered paint pigments version of the invoice at the Inland Revenue Department in Guangdong it is applied to the temperature change ink !
It was reported that "Guangdong Local Taxation generic fixed invoices " using a special ink temperature change IRD printing "LT" this pattern . At room temperature, this pattern was emerald green , but if you rub with your fingers jammed after heating , driveway stone will change to yellow , then drop back to room temperature, the temperature , but also color changes back to the original emerald green . Due to some kind of temperature change ink IRD -specific, so the move can effectively identify the authenticity of the invoice !

Adding as little as possible

​Long afterglow luminous use:
1 . Injection : press the proportion that good luminous body , adding an appropriate amount of paraffin oil ( diffusion oil can ) , into a paste, then pour weighed glow in the dark film compound can be produced . There can be injection molded material : pp, pe, pvc, pu, ps, abs, tpr, eva, pmma, nylon. The more transparent plastic  material , light the better , as far as possible with fluorescent toner toner , adding as little as possible ,
2 tone ink : that good luminous materials, transparent varnish, related auxiliaries stir evenly ( What varnish, what additives are different ) .
Use long-lasting afterglow luminous powder ratio:
1 . Injection : It is recommended 4-10 % , often 5-6 % , glow in the dark dye according to customer requirements .
8% brightness with good meal , the proportion of low concentration powder brightness.
2 . Transfer ink: recommended 40-60 % , often 50%.       

What are the characteristics of temperature change ink

Temperature change ink known as thermochromic ink , showing temperature sensitive ink or ink . Temperature change ink into three categories: the display a specific color temperature , the color disappears upon heating becomes colorless glow in the dark immediately restore the original color , because reversible change process , referred to as " inversion variable message color ink " ; Show colorless at room temperature, after heating into another color , then restore the original cooling colorless , photoluminescent films the change process reversible , referred to as" inversion hair color ink " ; ink display color at room temperature , after heating into another color , because the reversible change process referred to as " inversion variable color ink transfer ". 

The organic photochromic material

Our organic photochromic materials began in the 1980s . Nankai University graduation certificate security seal , is the oldest university diploma gravels for driveway application security is the first application of this technology in the security identification technology. Then the technology have been used in garment decoration , inks , paints, plastics , and other fields , to produce color clothing, color sandals, color plastic , color glasses , etc. ; covert military camouflage material also successfully Photoluminescent pigment, such as gradient color chameleon camouflage applications have mature, discolored material, especially by consumers in the clothing industry .

luminous and phosphor What is the difference

First, the main component of Epica and features luminous powder ;
1 luminous Description Material composition mixture 4SrO.7AL2O3: Eu (Eu as rare earth elements ) .
2 main non-toxic non-radioactive luminous , no burning, no explosion, free of heavy metals or other harmful chemicals .
3 luminous with a very stable gravel for gardens chemical properties , strong adaptability to environment and extremely long service life , luminous effect can be achieved using the longest 20 years . Luminous density ρ ≈ 3.6gcm3 7. Maintain good stability at -60 ℃ -600 ℃ condition .
4 luminous luminescent time is short, high brightness, long afterglow time , rich color varieties , colors and more .
5 can be used as an additive or luminous pigment. glow in the dark dyes in a variety of transparent or translucent medium, such as paint , oil, black, plastic , rubber stamp glass , ceramics, chemical materials , to achieve self-luminous function media should exhibit good low lighting instructions and decorative landscaping effect.

luminous production process

Features : Unlike the luminous phosphors , which non-radioactive , light long short but luminous efficiency , low cost , colorful. Second, the equipment: electric furnace , crucible , ball mill, drying equipment. Third, the formula : red luminous : 55 grams decorative aggregate , 40 g of magnesium sulfate , lithium phosphate, 2 g , 3 g of copper nitrate blue luminous : 63 g of calcium sulfide , sodium sulfate, 5 g , 5 g of potassium sulfate , strontium sulfate 10 g, 6 g of sodium chloride , 1 g of silver nitrate , 10 g magnesium sulfate . Purple luminous powder : 63 g calcium sulfide , magnesium sulfate 26 g , 10 g sodium sulfide , strontium nitrate 1 g . Green luminous powder : 55 g calcium sulfide , potassium sulfide 1 g , 10 g sodium sulfide , barium nitrate 12 g , 13 g of indium nitrate . Luminous yellow : barium sulfide 55 g , 40 g magnesium sulfate , aluminum sulfide 2 g , 3 g of potassium nitrate . Fourth, Crafts: after with a good raw material, the temperature on the crucible furnace heating , raw material in the pot , glow in the dark stone, mix the raw materials directly on the burning furnace , the temperature is 133 degrees , burning 50 minutes after hand -colored pick insufficiency impurities, and then placed in the cooked raw mill ground into fine powder and then soaked in water for precipitation to remove water, the sink in the powder can be placed in the drying oven . Fifth, use : put a colorless transparent plexiglass Two bananas dissolved in water . After adding 72 hours to the amount of luminous paint on watches, clocks , instruments and crafts .

color ink four major characteristics

Color ink Features:
1, the temperature change ( thermochromic ) water-based flexographic printing ink and water-based gravure inks thermal water-based flexographic inks for high-volume packaging production companies, for a variety of different types of flexographic printing presses, we can deploy the corresponding ink. Mainly used in cigarettes, food , beverages, pesticides and powdered paint pigments high-volume packaging printing. Thermochromic ink water-based security on tobacco packaging conform to the current proposed environmental requirements. In line with national policy -oriented , because of its beautiful and easy to detect , welcomed by many tobacco factory , but also for cigarette packaging printing companies dominate the market and lay a good foundation .
2 , solvent- solvent-based gravure ink thermochromic thermal gravure inks for high-volume packaging production companies , printing effect is good, color fast , full color . It can satisfy the plastics and tobacco packaging printing enterprises corresponding printing.
3 , thermochromic offset ink offset ink sensitive material can glow in the dark stone , but overall lighter than ordinary printing color offset printing ink colors , mainly related with the electrochromic material . Offset printing ink we develop a uniform , smooth and complex with fluorescence techniques can be used for notes , packaging, books and other security printing , which has multiple security features.
4 , silk screen printing ink type of security inks 350 mesh can be used to good effect pattern , smooth, full color, material can meet all of the above security printing requirements.

glossy ink Precautions

1 , since the mirror silver ink dilute water, it should choose a high mesh screen , not only that, squeegee hardness should be more rigid .
2 , mirror ink must stir before using it with aluminum powder mixed resin to fully ensure the emergence mirror effect , otherwise , masterbatch glow in dark the produce mirror effect .
3 , printing ink mirror when temperature and humidity are very important, because the ink on the screen easy to dry, so we can not screen in air circulation , otherwise very easy to block network , when the air humidity, mirror effect backward , so in the screen printing to prevent air flow and moisture as possible.
4 , screen tension slightly lower , the net transfer from also nearer, and appropriate pressure reducing scraping blade, otherwise the mirror effect will undermine the formation .
5, printing machinery , which can not be used to back blade with a hard aluminum or stainless steel , while the gum back blade should be used to ensure Photoluminescent Ceramic ink coating uniformity mirror , the mirror effect is the same.
6 , mirror effect mirror the way the ink is drying on the mirror effect in terms of heating and drying naturally dry less good , and note should be consistent with warming temperatures and drying time , otherwise the mirror performance and color saturation will differ.
7 , we must first understand the dilute water mirror ink printing technique is the key, when the printing speed is slow, on the one hand , dilute the ink will leak water shed mirror screen , on the other hand , mirror ink easy to absorb moisture from the air , after printing mirror effect was not good , for at the time of printing, the ink mirror inverted version must be continuous and rapid network printing , printing to complete successfully , that is, the printing side of the workpiece edge to check this rate, will give the effect of impact printing , such as blocking network , printing ink does not go on the screen slagging Orchestra.

About the luminous light-emitting basis

Luminous powder is common to us . So what luminous luminous basis of it, let's take a look .
1 , the light emitting luminous material is carried out according to the principle of photoluminescence , the excitation source is typically daylight and artificial light, it absorbs excitation light and stored , after the excitation light is stopped , then the decorative gravels in the form of slow- light slow release . absorbing light emitting → storage → → re-emitting , the process may be repeated indefinitely repeated , and the discharge cell phone battery charging → → → rechargeable discharge process was repeated using similar .
2 , the light-emitting material in the absence of external light source emits light in a dark environment , which is called the afterglow emission time period . Better performance of the long afterglow luminescent colors and diverse materials such as silicate system afterglow materials ,glow in the dark material activated afterglow characteristics of alkaline earth aluminate is the most superior, can achieve more than 20 hours afterglow - luminous .

A new kind of luminescent films

This luminescent films is a new kind of self-emitting product. It has great storing - emitting energy by absorbing the natural or artificial light such as sunlight; fluorescent light etc. When exciting for 10 - 30 minutes, it can glow for 8 - 12 hours in the dark. The characteristic of it is nontoxic and free from any radioactive and it has effect of repeatedly absorbing-emitting light.The glow products is suitable for any environment, such as high or low temperature, moist, acidity, basicity and need no outside energy.

Photochromic pigments

Photochromic pigments is a reversible chemical reaction, which is an important judgment standard, irreversible reaction occur under the action of light, also can cause the change of the colors, only belong to the category of general photochemical, not belong to the category of photochromic.

What color ink Classification

Color ink is a means of material by means of a special color inks can be used in the security industry, toy industry, gift industry, garment industry, handicraft industries.
Color ink Category:
Temperature change ink, ultraviolet glow in dark sheet light-sensitive color ink, color ink UV fluorescence, infrared excitation color ink, water color inks, chemical color inks, optically variable ink.
 There are three color ink temperature categories, displaying a specific color temperature, color disappears after heating becomes colorless, cooled immediately to restore the original color, its irreversible process of change, referred to as "inversion variable elimination color ink "; Show colorless at room temperature, after heating into another color, then restore the original cooling colorless, because of the change process reversible, referred to as" inversion Hair color ink "; ink display color at room temperature, after heating into another color, because the reversible change process referred to as "inversion Photoluminescent Gravel variable color ink transfer."
 Dreaming ink (daylight color ink): usually encountered sunlight or ultraviolet light exposure from colorless to color, colors are: red, purple, blue, sky blue, green, orange, yellow and other seven colors.

Photoluminescent films

Photoluminescent films is a luminescent film that absorbs light energy in light environment and is able to glow in the light environment. It has a soft, light color of the bottom, on the ground floor is equipped with a light-emitting layer, the performance of pervious to light emitting layer on the outside with a layer of transparent membrane layer, bottom layer with adhesive layer, on the back of paper from the adhesive layer with attached form, the utility model is made of macromolecule material as base material after special craft processing and become the paster, have high luminous intensity, luminous time is long, the characteristics of excellent weatherability, product non-toxic, no radiation, the utility model is mainly used in low-alcohol emergency lighting, fire safety signs and general guidance instructions and identification marks.