Know-how
Glossary
A
Aperture size
Distance between neighbouring warp or weft wires
Absolta
Five layer sintered product for filtration
B
Betamesh-PLUS
A woven wire mesh for highest separation performance at lowest power consumption
C
Calendering
Milling
Chromatography
Separation of mixed particles into individual components
D
Differential pressure
Pressure ratio upstream and downstream from the filter
Distribution curve
Graphical presentation of the results from a sieve analysis
Drawing
Passing the warp wire through the heddle
Drawing die
Component with a diamond embedded which determines the wire diameter when drawing wire
Drop
Releasing the screen printing mesh from the printed surface
Dry screening
Screening powdered materials without liquid
Duplex
Mesh offering high flow rates at increased mechanical loadings
E
Elastic limit
Tensioning up to which a material by uniaxial tensile load shows no plastic deformation
Eu (Eulerzahl)
Absolute figure measuring the relationship between pressure and inertia
F
Fabrication
Processing the mesh into finished and semi finished goods
G
Geometric pore size
Diameter of the largest spherical bead capable of passing through the mesh
L
Laminate
Multi layer bonded mesh
M
Mesh analysis
Separation of a bulk material sample and analysis of particle siz
Mesh counter
Optical device used to establish mesh count
Mesh fineness
Number of wires per inch (Imperial measure)
Mesh thickness
Calculated according to wire diameter and mesh type
O
Open area
Sum of the apertures across the total mesh area
P
Perforated plate
Plates/metal discs with regularly spaced holes, often used as support for mesh
Pressure drop/fall off
Difference in pressure caused by filter resistance
Poreflo
Plate-like two or three layer laminate produced using offset layered twilled meshes
Poremet
Plate-like filter medium produced using five different mesh layers
R
REACH
European Union regulation concerning the Registration, Evaluation, Authorisation and registration of Chemicals
Registration
Layering of individual colours in full colour printing
Robusta (armoured weave)
Meshes with greater porosity and very high flow rates, extremely robust
Roll card
The ‘identity card’ for each roll of mesh
S
Screen printing meshes
Precision woven meshes specially developed for screen printing applications
Service life
Operational life of a screen/mesh until it requires replacement
Sieve plate
Wire mesh or perforated plate with identical, regularly spaced openings
Smooth weave
Type of mesh with textured surface for high flow rates
Square weave mesh
Mesh woven with wires spaced at a distance, giving open apertures
Squeegee (screen printing)
Spatula-style component that presses the ink through openings in the mesh onto the printing surface
T
Theoretical ink deposit
Volume of open area calculated against the area of the substrate
Twilled weave
Mesh type giving small filter pores with monofilaments
TETKOmat
Branded tension meter for measuring screen tension
Topmesh
Two or three layer combination of filter and support meshes
W
Warp/warp wire
Wires running in a longitudinal direction
Warping
Transferring the wire from the warp wire reel to the warp beam
Weft/weft wire
Wires running at right angles to the warp wire
Wire diameter
Diameter of wires used in mesh production
Wire mesh
Different types of mesh produced from metals
