Nonwoven Fabric Compressive Water Absorption Tester
The Nonwoven Fabric Compressive Water Absorption Tester is designed to evaluate the liquid absorption performance of nonwoven fabrics under controlled compression. The instrument allows precise comparison of different nonwoven materials’ water absorption properties, without simulating final product usage conditions. It provides highly reproducible and accurate results for research, quality control, and material development.
Applications
(1) Comparison of water absorption performance of nonwoven fabrics.
(2) Material development and quality assessment for hygiene products, medical fabrics, filters, and industrial textiles.
(3) Laboratory testing of nonwoven sheets under controlled pressure conditions.
(4) Evaluation of absorbent capacity for disposable products like wipes, pads, or filters.
(5) R&D in textiles and nonwoven material manufacturing to optimize absorbency properties.
Standards
The instrument conforms to the following standards:
(1) GB/T 24218.12-2012 – Determination of compressive water absorption of nonwoven fabrics.
(2) Applicable ISO and ASTM equivalents may be referenced for comparative testing.
Parameters
| Parameter | Specification |
|---|---|
| Sample Diameter | 55 ± 1 mm |
| Number of Samples | 5 pieces per test |
| Water Column Height | 40 ± 0.5 mm above liquid reservoir |
| Maximum Absorption Mass (Af) | Mass of liquid absorbed at equilibrium, g |
| Compressive Absorption (DAC) | Af divided by sample mass, g/g·s |
| Maximum Absorption Rate (MAR) | Maximum mass change per unit time, g/s |
| Pressure Application | Cylindrical weight with replaceable hydrophobic foam pad |
| Test Temperature | Room temperature (ambient) |
| Data Acquisition | Digital display with automatic storage |
| Calibration | Multi-porous plate flow rate calibration and electronic balance calibration |
Features
(1) Measures liquid absorption under controlled compressive pressure, providing reproducible and accurate data.
(2) Allows automatic recording of maximum absorption mass, compressive absorption, and maximum absorption rate.
(3) Equipped with hydrophobic foam pads for repeated tests and easy replacement.
(4) Digital interface for setting sample ID, mass, absorption type (standard or high absorption), and automatic data storage.
(5) Multi-porous plate design with precise liquid flow control (2.5–3.5 g/s).
(6) Supports frequent calibration to maintain accuracy, including electronic balance and multi-porous plate calibration.
(7) User-friendly software with step-by-step prompts for testing and calibration.
Accessories
(1) Hydrophobic foam pads (replaceable)
(2) Cylindrical compression weights
(3) Multi-porous glass plate and U-shaped tube
(4) Plastic sample holder/clip for controlled water delivery
(5) Digital electronic balance (integrated or external)
(6) Calibration kit for plate flow rate
(7) User manual
Test Procedures
Affix the hydrophobic foam pad to the weight using double-sided adhesive.
Prepare 5 samples from the same material, 55 ± 1 mm in diameter, pre-conditioned as required.
Fill the reservoir and U-shaped tube with water; ensure liquid surface is 40 ± 0.5 mm above reservoir.
Place the sample on the multi-porous glass plate and cover with cylindrical weight.
Power on the instrument and select interface language.
Enter sample ID, mass, and absorption type.
Start the test; the system records data automatically.
Upon test completion, save the data and view results via the display.
Calibrate the instrument every two days, including multi-porous plate flow rate and electronic balance calibration.
Multi-porous plate calibration: deliver 11 mL of deionized water and verify flow rate (2.5–3.5 g/s).
Electronic balance calibration: follow on-screen prompts to complete.
Maintenance Information
(1) Clean the multi-porous plate and U-shaped tube after each test to avoid residue buildup.
(2) Regularly inspect foam pads and replace when worn.
(3) Keep water reservoir clean and free of contamination.
(4) Perform calibration as recommended (every two days or before repeated tests).
(5) Avoid exposing electronic components to excessive moisture or liquids.
FAQ
What is this product?
A laboratory instrument for measuring compressive water absorption of nonwoven fabrics.
What is it used for?
To compare water absorption properties of nonwoven materials under controlled pressure conditions.
Why is it important?
Provides reproducible, accurate data critical for material development, product performance verification, and quality control.
Which industries can use it?
Hygiene products, medical fabrics, filtration materials, industrial textiles, and consumer goods manufacturing.
What types are available?
Standard nonwoven compressive absorption testers with digital interface, integrated balance, and replaceable foam pads.
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