Micro mesh is a fiber fabric with high accuracy consists of polyester monofilament yarn. It has water repellency and develops into receiver unit, microphones of earphone, etc.
Features
Mesh material for a speaker with superior sound permeability, dustproof and water repellency.
Sound permeability (air-permeability)
Water repellency
Dustproof
Environmental comformable (Halogen-Free)
Specifications/Data
Below specifications are common to IEC(International electrotechnical Commision) 61249-2-21, US IPC(Institute for Intercooecting and Packaging Electronic Circuit(Standard)) 4101B, and JPCA(Japan Electronics Packaging and CircuitsAssosiation) ES01-2003.
- Chlorine percentage of a constituent : 0.09wt% (900ppm) or less
- Bromine percentage of a constituent : 0.09wt% (900ppm) or less
- Chlorine Total percentage of a constituent : 0.15wt% (1500ppm) or less
HF-420BH
| Mesh Count (How many yarns/inch) | 420 |
|---|---|
| Yarn Diameter (μm) | 31 |
| Opening (μm) | 29 |
| Opening Area (％) | 23 |
| Thickness (μm) | 49 |
| Air permeability (cc/cm2/秒) | 130 |
| Specific air flow resistance MKS rayls (pa・s/m) |
115 |
| Water Repellency (級) | 5 |
HF-380BH
| Mesh Count (How many yarns/inch) | 380 |
|---|---|
| Yarn Diameter (μm) | 31 |
| Opening (μm) | 33 |
| Opening Area (％) | 26 |
| Thickness (μm) | 45 |
| Air permeability (cc/cm2/秒) | 185 |
| Specific air flow resistance MKS rayls (pa・s/m) |
80 |
| Water Repellency (級) | 5 |
HF-300BH
| Mesh Count (How many yarns/inch) | 300 |
|---|---|
| Yarn Diameter (μm) | 34 |
| Opening (μm) | 47 |
| Opening Area (％) | 33 |
| Thickness (μm) | 53 |
| Air permeability (cc/cm2/秒) | 330 |
| Specific air flow resistance MKS rayls (pa・s/m) |
32 |
| Water Repellency (級) | 5 |
HF-280BH
| Mesh Count (How many yarns/inch) | 280 |
|---|---|
| Yarn Diameter (μm) | 34 |
| Opening (μm) | 55 |
| Opening Area (％) | 38 |
| Thickness (μm) | 55 |
| Air permeability (cc/cm2/秒) | 420 |
| Specific air flow resistance MKS rayls (pa・s/m) |
22 |
| Water Repellency (級) | 5 |
●Air permeability: measurement method JIS L 1096: Frajour type test
●Water repellency: measurement method JIS L 1092: Spray method test
◇There might be some other micro mesh products. If you have any request, feel free to contact us.
※These data is reference value, not guaranteed value.
Definitions
Mesh Count
The number of yarns in 1inch.
Yarn Diameter
How thick is one yarn
Opening
The distance between two adjacent yarns in one mesh.
Opening Area
The proportion of the opening area to all the micro mesh
Thickness
The thickness of the micro mesh
Air permiability
the amount of the ventilation in 1cm² per second.
Specific air flow resistance
pressure difference when air flow throgh the micro mesh.
Water repellency
water drop repellency
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