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Photovoltaic back glass high reflective oily screen printing ink NF ‐ 5201

Glass flux is an important component of ink, mainly composed of a variety of inorganic non-metallic minerals and chemical raw materials, which are fully mixed in a certain proportion. It is melted at high temperature in a converter, then cooled by water quenching, and finally ground into fine powder. The main function of glass flux is to form a coating through the tempering process, adhere functional whitening powder to the glass surface, and have a certain adhesion. The composition of glass flux has an important impact on the glossiness, reflectivity, and corrosion resistance of the ink. The melting temperature of glass flux affects the addition and adhesion of functional whitening powder, and its expansion coefficient affects the impact resistance of tempered back glass. Our company has carefully formulated the composition of flux to ensure that the ink has high reflectivity, optimal barbecue temperature, excellent corrosion resistance, and suitable expansion coefficient, and the flux does not contain heavy metals such as lead.

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Product description

01  Glass flux

Glass flux is an important component of ink, mainly composed of a variety of inorganic non-metallic minerals and chemical raw materials, which are fully mixed in a certain proportion. It is melted at high temperature in a converter, then cooled by water quenching, and finally ground into fine powder. The main function of glass flux is to form a coating through the tempering process, adhere functional whitening powder to the glass surface, and have a certain adhesion. The composition of glass flux has an important impact on the glossiness, reflectivity, and corrosion resistance of the ink. The melting temperature of glass flux affects the addition and adhesion of functional whitening powder, and its expansion coefficient affects the impact resistance of tempered back glass. Our company has carefully formulated the composition of flux to ensure that the ink has high reflectivity, optimal barbecue temperature, excellent corrosion resistance, and suitable expansion coefficient, and the flux does not contain heavy metals such as lead.

 

02  Functional whitening powder

Functional whitening powder usually uses titanium dioxide as the main raw material. Solar photovoltaic modules require a 25-year service life under harsh outdoor environments. Therefore, our company has selected titanium dioxide with excellent reflectivity, covering power, and weather resistance as raw materials through repeated tests.

 

03  Oily inking ink (Thinner: Ink)

Water-based inking oil is composed of polymer resins and solvents, and additives include dispersants, defoaming agents, leveling agents, thickeners, and curing agents. Our company uses water-soluble environmentally friendly resins, and enables ink to have good printing performance and good adhesion.

 

 

NF-5201 (Water Soluble Oily Ink) High Reflective Ink Performance Indicators
Reflectivity 80±2%
Adhesive force EVA adhesive strength>45N
Adhesion (white grid knife test) Level 0
Pencil hardness >9H
Color and glossiness (X-rite densitometer) white
Chemical properties Excellent acid and weather resistance
Glaze fineness (QXD scraper fineness meter) ≤10μm
Expansion coefficient (PREISER FRS-41000A4) 85-90*10⁻⁷/℃
Viscosity (VT-04F Viscometer, 25 ℃) The viscosity of 450 ± 50dpa. s product is slightly higher than the viscosity required for printing, and customers can add a small amount of diluent if necessary
Screen screen 120-200 mesh
Screen printing temperature/humidity 20-25℃/40-60℃
Screen printing thickness 20-30μm
Drying parameters 180℃-220℃/3-5min
Tempering parameters 650℃-720℃/80-160S
Shelf life (normal temperature, dry/month) twelve

 

 

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