Description
Our SMS (Spunbond‑Meltblown‑Spunbond) polypropylene nonwoven fabric is specifically designed for disposable vacuum cleaner dust bags. this material combines three distinct layers into one high‑performance composite – without adhesives.
The middle meltblown layer receives a permanent electret (electrostatic charge) treatment, actively capturing sub‑micron particles. The outer spunbond layers provide mechanical strength and abrasion resistance, while ultrasonic spot‑welding ensures the layers stay bonded even under high‑velocity airflow.
Result: A dust bag fabric that delivers high filtration efficiency, low airflow resistance, and exceptional durability – all at a cost‑effective, disposable price point.
Key Technical Features
| Feature | Specification | Benefit |
|---|---|---|
| Structure | 3‑layer SMS (Spunbond + Meltblown + Spunbond) | Optimised balance of strength, filtration & air permeability |
| Layer Bonding | Ultrasonic spot‑welding pattern | No glue; prevents delamination under high‑speed air flow |
| Middle Layer | Electret‑treated meltblown PP | Electrostatic capture of fine particles without increasing pressure drop |
| Filtration Efficiency | ≥98% for particles ≥0.5 µm | Traps dust, pollen, mould spores & fine allergens |
| Outer Layer | Abrasion‑resistant spunbond | Protects the meltblown core during handling & vacuuming |
| Inner Layer | High‑strength spunbond | Provides structural support for bag shaping & sealing |
| Material | 100% polypropylene (PP) | Chemical‑resistant, moisture‑resistant, lightweight |
Why Choose This SMS Nonwoven Fabric?
1. Superior Filtration without Sacrificing Suction
The electret meltblown layer pulls in particles electrostatically, achieving >98% efficiency at 0.5 μm while keeping air resistance low. Your vacuum cleaner maintains strong suction power longer.
2. Ultrasonic Spot‑Bonding – No Adhesives
Traditional adhesive‑bonded fabrics can weaken over time or emit odours. Our ultrasonic spot‑welding creates permanent, flexible bonds that withstand repeated airflow pulses – no delamination, no leaks.
3. Durable Three‑Layer Construction
-
Top spunbond resists abrasion from coarse dust and bag insertion.
-
Middle meltblown is the high‑efficiency filter.
-
Bottom spunbond adds tear strength for bag manufacturing and handling.
4. Custom Colours Available – Beyond Standard Grey & Blue
While standard stock colours are grey and blue, we can produce this SMS fabric in any custom colour to match your brand identity or product line. Whether you need white, black, green, red, or a specific Pantone shade – just provide your colour code, and we will tailor it for your disposable dust bags.
5. Compatible with Major Vacuum Cleaner Brands
Our SMS nonwoven fabric is designed to work seamlessly with dust bag formats used by Siemens, SANYO, Philips, Panasonic, and many other leading brands. It meets the airflow, filtration, and strength requirements common across these manufacturers, making it a versatile choice for aftermarket bag producers and OEMs alike.
Typical Applications
-
✅ Disposable dust bags for canister, upright, and robotic vacuum cleaners
-
✅ Compatible with Siemens, SANYO, Philips, Panasonic and other major brands
-
✅ HEPA‑type pre‑filters for bagless vacuum cleaners
-
✅ Central vacuum system bags
-
✅ Industrial dust collector bags (light‑duty, disposable)
Technical Data Sheet (Typical Values)
| Parameter | Value |
|---|---|
| Basis weight | 50 – 90 g/m² (customisable) |
| Thickness | 0.35 – 0.65 mm |
| Air permeability | 120 – 250 L/m²·s @ 200 Pa |
| Filtration efficiency | ≥98% @ 0.5 μm (electret treated) |
| Tensile strength (MD) | ≥80 N/5cm |
| Tensile strength (CD) | ≥40 N/5cm |
| Burst strength | ≥250 kPa |
| Max operating temperature | 80 °C (176 °F) |
| Standard colours | Grey, Blue |
| Custom colours | Any (Pantone/RAL code) |
Customisation Options
| Option | Details |
|---|---|
| Colour | Standard: grey, blue. Custom: any colour (minimum order applies) |
| Layer weights | Adjust spunbond / meltblown GSM ratios |
| Spot‑weld pattern | Round, oval, or custom pattern for different flexibility / stiffness |
| Width | 1600 mm or slit to your width |
| Roll length | Up to 1000 m per roll |
| Antimicrobial finish | Optional treatment to inhibit bacterial growth inside the bag |
| Brand‑specific fit | Can be slit and shaped to fit Siemens, SANYO, Philips, Panasonic bag frames |
Frequently Asked Questions (FAQ)
❓ Is this fabric compatible with all vacuum cleaners?
Yes, as long as the dust bag dimensions and mounting card are designed for your machine. Our fabric can be converted into finished bags by bag converters.
❓ Does the electret charge degrade over time?
The electret treatment is permanent under normal storage (dry, room temperature). It remains effective for the intended service life of a disposable dust bag (typically 1‑3 months of use).
❓ Can this fabric be used for reusable (washable) bags?
No – washing will significantly reduce the electrostatic charge and filtration efficiency. This material is optimised for single‑use disposable bags.
❓ What is the minimum order quantity (MOQ)?
MOQ is typically 500 kg for custom colours / patterns, and 1000 kg for standard white fabric. Smaller samples (5‑10 m²) are available for testing.
Order Samples or Request a Quote
Get a free A4‑size sample of our ultrasonic spot‑bonded SMS nonwoven fabric.
Test its filtration efficiency, air permeability, and ultrasonic bond strength in your own vacuum cleaner bag prototype.
Lee –
Great purchase! The fabric’s thickness is consistent throughout, and it has good breathability as described. Works perfectly for vacuum cleaners dust bag production, will definitely reorder soon.