Screen printing mesh

Stainless steel weave cloth, stainless steel wire mesh, woven wire cloth, woven wire mesh
Screen printing mesh

Screen printing mesh is a weaved cloth stretched over the screen frame. The most common mesh type in integrated circuit manufacturing is stainless steel plain weave cloth made from high performance alloys. Besides screen printing, wire cloth is a very versatile product that has applications in a large number industries, such as electro-magnetic radiation shielding, ultra-precise filtration or sizing and sieving.

We manufacture our screen masks solely with a high quality Japanese meshes and we are able to supply various types of raw mesh for your individual manufacturing requirements.

Screen mesh lineup

Wide range of applications can be satisfied with basic polyester products while fine pattern printing relies on a stainless steel or electroformed mesh. Mesh manufacturers use various names and codes for their products however the common screen meshes can be sorted as follows.

Polyamide-Nylon mesh (PA)
Nylon is used in a monofilament form, it is a strong, flexible and resilient material, having good emulsion adhesion. It is suitable for printing onto uneven surfaces. However it absorbs water and is therefore is affected by changes in humidity.

Polyester mesh (PES)
More stable than nylon, resilient but sufficiently flexible to cope with the normal irregularities of most substrates. In major applications used in its monofilament form. Very good cost performance compared to stainless steel mesh. High modulus polyester provides good dimensional accuracy and excellent stability over time. However reduced mesh opening area does not allow fine pattern printing.

Polyester mesh

Stainless steel mesh (SUS)
The most commonly used mesh in micro-circuit manufacturing todays, uniform wire diameter, consistent mesh thickness and evenly tensioned weaves. Suitable for printing which requires fine pattern printing with high position accuracy. Widely used for various types of high-end applications, available in many alloys with different performances.

Stainless steel mesh

Ultra thin super stainless steel mesh (SS)
Smaller thread diameter and bigger opening area compared to the conventional stainless steel mesh. Features good release of paste, good deposit uniformity, high tensile strength and little elongation. Recommended for highly accurate fine line printing with enchaced edge definition of small features.

SS super fine mesh

Calendered mesh (CAL)
Main stainless steel mesh product used for fine printing is a calendered mesh which is flattened at the highest point in the weave. The calendering process flattens the knuckles of the wires, reducing the overall thickness of the mesh without the mesh openings being altered. Consistent and significantly reduced wet deposit without using finer mesh, lowered squeegee wear.

Calender mesh

One side calender mesh (OSCAL)
One side calender mesh has only top side flattened-calendered which greatly improves the final result of the curved pattern prints. There is no hindering the ink flow on the print side while providing low friction benefit on the squeegee side. New invention for RFID and touch panel applications.

Squeegee side
Emulsion side

Black Screen process (BS)
Chemically processed, surface treated stainless steel mesh with black surface, random reflection of light during the exposure process is reduced. This results in better adhesion of the emulsion, as well as higher resolution patterns and very smooth aperture walls for the best possible paste flow.

black mesh
Black mesh vs. standard

3D mesh for thick deposits
Enables to increase paste thickness without changing mesh number. 3D-Mesh makes it possible to achieve 1.5 times higher printing thickness and remarkable leveling capability. Uniquely constructed weave with large crimps of wire in one direction interwoven with straight wires in the opposite direction.

3D mesh

Polyarylate mesh (V-Screen)
New super fibre excellent at high-strength, low elongation characteristic and elasticity is more than double comparing to stainless steel. Ideal for high viscosity pastes, superior dimensional accuracy for high-precision printing, better chemical resistance, no water absorption.

v-screen mesh
V-screen mesh

Alpha mesh / Beta mesh (electroformed screen)
Flat screen plate made of Nickel deposition by the electroforming method. Unweaved mesh, very smooth, suitable for a thin film layer printing. No mesh mark on printed items as they no bump on mesh intersections. Suitable only for printing of smaller area patterns, very expensive material.

alpha mesh
Alpha mesh (α)
beta mesh
Beta mesh (β)

Screen mesh parameters

When choosing a mesh for your application, the mesh opening must be large enough for at least three of the ink or paste particles to pass through at once, otherwise the mesh will clog. Deposit thickness relates to mesh thickness and open area percentage.

Aperture size (w) describes the distance between to neighbouring warp or weft wires, measured in the centre of the aperture.

Mesh count is calculated upon the number of apertures per English inch (25.4 mm). Wire cloth with square or right angled apertures should be described using aperture size (w) and wire diameter (d).

Open area (Ao) describes the sum of all apertures as a percentage of the entire surface area.

Mesh thickness (D) is based on the wire diameter and the weaving process. Thickness measurement is carried out prior to tensioning.

Theoretical ink deposit (Vth) is an approximate value considering ink cubes forced through the wire cloth, whose volume is determined by the mesh aperture (w) and the cloth thickness (D). The cubes then flow together to form an even wet ink film of theoretical thickness on the substrate.