Description

Method and device for online tough less surface tension control ODSTM-1 in DE19543289 by which the fast moving substrate through the measuring gap. It is transmitted with a chromatic beam and spectral selected light source were two optical channels are displaced and polarized by 90 degree to each other. Both optical axles are precise and motor driven shift able in certain angles from 25 up to 65 degree. The spectral light photons, transmission, extinction, absorption grades are detectable by two optical CCD imagine vision devices, integrated into the sensor case on other side of the substrate.

Material condition
At high speed moving substrates means plastic foil, flexible, film, laminate, coating, bonding, labeling, co-extrusion, BOPP, LDPE, LLDPE, HDPE, MDPE, MAS, MOH, MEV, PET, FEP, PP, PE, PS, PO, EVA, PTFE, PVC, PTFE, Vinyl, Polyester, wrapping, self-adhesive tape, high strength, cross laminated, adhesive coated films, reflective or magnetic sheeting, automotive tape products, inkjet, heat sealing, security, pressure sensitive tapes for entertainment or building industry, masking or printable plastic films, polycarbonate, acrylic, extruded or polished cellulose, optical grade polycarbonate, sheets for IR or laser protection, filter sheet, imaging, capacitors, bi-oriented polystyrene sheet, multilayer co-extruded film, PVC, PETG, polyimide, tear tapes for aerospace, inner covering in aircrafts, automotive, medical, bioengineering, renewable, agriculture, marine, household, commercial, domestic, construction, high-porous membranes for uses in alkaline lithium ion batteries, fuel cells, filtration equipment. By gauges 10-500 microns, fabric widths up to 10000 mm and web speeds up to 18 m/s.

Optical properties and quality control
Material specific wavelength selection 1200 up to 1800 nm, material specific finger prints, molecular spectral properties, transmission, optical angle scanning, ultra low level stray scatter light detection, polarization, slot diaphragms, transverse displacements control the light beams along and far from the optical X and Y axes. The results are extreme scattering, diffraction, NIR, IR, stray light photons generation into the layer areas at both sides of the moving substrate.

Their reflected and transmitted light intensities enables the determination by defined formulas and data matrixes the surface tension values in ranges from 28 up to 62 mN/m or dynes which are direct associate and bond to real static values for statistical quality control (SQC).

And this entirely independent of the material specific influences as like surface consistency, thickness, density, weight, opacity, coherence, filling, stretching, shrinkage, structure, co-extrusion, polar grouping, temperature, intrinsic motivation or viscosity, hydrophobia, hydrophilic molecules, hydrogen, moisture, water steam proof, bi-layer, polymer, patterning, nanostructure, irradiation, isotopic, catalyst, coherence, absorption, photo mask effect, radiation, resonance bands, Raman, electron spectroscopy for chemical analysis ASTM or ATR method, property, acoustic photonic liquid effects, pre material treatment as corona, plasma jet, flam treatment.