16
8月
Application of UV technology
Compared with traditional offset printing, UV printing is characterized by bright colors, special substrate materials, novel products and broad market prospects. It is suitable for high-end business card packaging, high-end business album, special desk calendar, special label printing and other product... 查看详情
05
9月
Powder coatings are one of the most environmentally friendly coatings systems due to their complete absence of organic solvents and low VOC emissions during curing. The so-called coating leveling, that is, coating coating after the construction of the formation of smooth state, leveling surface... 查看详情
19
12月
These are the guidelines to making photoluminescent printing pastes. Your application may require some adjustments to the technical material below. Mix the Photoluminescent pigment into clear vehicles. Any other pigment in the medium will obscure the luminosity. Choose neutral or alkalescent clear/transparent printing paste... 查看详情
18
7月
The thermochromic pigment (microcapsule) is a spherical particle, and the finer the particle, the stronger the scattering effect on light. Therefore, under the same conditions, the pigment with a fine average particle size is lighter in appearance. The thick pigments are brighter in color.... 查看详情
19
12月
I. Basic knowledge of spectrum: ULTRAVIOLET rays are divided into three types according to different bands: UVC for those with a wavelength below 250 nm, UVB for those with a wavelength between 250 and 320 nm, and UVA for those with a wavelength between... 查看详情
19
6月
As a kind of functional coating, it is made up of luminous powder, base material and various auxiliaries. After applying luminous powder, it absorbs light for 10-30 minutes, and can continue to shine in the dark for 12 hours, and the process of light... 查看详情
13
5月
Hole transport model
For this type of material, the earliest model was the hole transport model proposed by Matsuzawa et al. in the SrAl2O4:Eu, Dy system. Based on this model, Matsuzawa believes that in the long afterglow materials SrAl2O4:Eu, Dy, Eu is the electron capture... 查看详情
01
11月
1. Electroluminescence is different from photoluminescence in that electroluminescence refers to electroluminescence and photoluminescence refers to the luminescence of photoluminescence materials. The principles of electroluminescence and photoluminescence are different.
2. Electroluminescence, also known as electric field luminescence, or EL for short, is a physical phenomenon... 查看详情
22
10月
Long afterglow material
Main peak
Time
color
SrAl2O4:Eu,Dy
520nm
>60h
green
CaAl2O4:Eu,Nd
450nm
>20h
blue
Sr4Al14O25:Eu,Dy
486nm
>30h
blue
Sr2MgSi2O7:Eu,Dy
466nm
>20h
blue
Ca2MgSi2O7:Eu,Dy
545nm
>20h
green
MgSiO3:Mn, Eu,Dy
644nm
~4h
red
Cd2Ge7O16:Mn
585nm
>3h
orange
MgSnO4:Mn
499nm
>5h
green
Zn3Ga2Ge2O10:Cr
700nm
>360h
red
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19
11月
One, coating production technology
Coating production process refers to the production of paint raw materials and semi-finished products through the equipment they are processed into a finished product of a material transfer or transformation process, its production process includes: mixing, homogenization, dispersion and other operational... 查看详情