fabric moisture permeability tester
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Fabric Moisture Permeability Tester
Fabric Moisture Permeability Tester
A Fabric Moisture Permeability Tester, also known as a Water Vapor Permeability Tester, is a laboratory instrument designed to measure the rate at which water vapor passes through textile materials. This measurement is crucial for assessing the breathability and comfort of fabrics, especially those used in active wear, outdoor gear, medical textiles, and protective clothing.
Purpose of Fabric Moisture Permeability Tester
The primary function of this tester is to evaluate a fabric’s ability to allow moisture vapor to pass through it, which directly impacts the wearer’s comfort by facilitating sweat evaporation and thermal regulation. High moisture permeability indicates better breathability, making the fabric suitable for applications where moisture management is essential.
Working Principle of Fabric Moisture Permeability Tester
The tester operates by placing a fabric specimen over a container filled with water. Under controlled temperature and humidity conditions, water vapor passes through the fabric over a specified period. The amount of water vapor transmitted is determined by measuring the weight loss of the container, allowing for the calculation of the Water Vapor Transmission Rate (WVTR).
Common Testing Methods
- Upright Cup Method: The fabric covers a cup containing water, and the assembly is placed upright in a controlled environment. After a set duration, the weight loss is measured to determine the WVTR.
- Inverted Cup Method: The fabric is sealed over a cup, which is then inverted and exposed to a controlled environment. The amount of water vapor absorbed by the fabric is measured over time.
- Sweating Hot Plate Test: Simulates human perspiration by measuring the energy required to maintain a constant temperature on a heated plate covered with the fabric, providing insights into the fabric’s breathability.
Key Specifications of Fabric Moisture Permeability Tester
– Test Cups: Typically 6 to 8 cups, each with a diameter of approximately 83 mm and a depth of 18.5 mm.- Turntable Speed: Approximately 2 revolutions per minute (RPM) to ensure uniform exposure.
– Environmental Conditions: Tests are conducted under controlled temperature (e.g., 23 ± 2°C) and humidity (e.g., 50 ± 5% RH) settings.
– Standards Compliance: Conforms to international standards such as ASTM E96, ISO 15496, BS 7209, and JIS L1099.
✅ Benefits of Fabric Moisture Permeability Tester
– Enhanced Product Development: Provides critical data for designing breathable and comfortable textiles- Quality Assurance: Ensures consistency in fabric performance across different production batches- Regulatory Compliance: Helps manufacturers meet industry standards and certifications.
– Consumer Satisfaction: Contributes to the development of garments that offer better moisture management, leading to increased wearer comfort.
Applications of Fabric Moisture Permeability Tester
– Active wear and Sportswear: Assessing fabrics for athletic performance and comfort.
– Outdoor and Protective Clothing: Ensuring materials provide adequate breathability while offering protection. Medical Textiles: Evaluating materials used in healthcare settings for moisture management.
– Technical and Industrial Textiles: Testing specialized fabrics used in various industrial applications.
Features of fabric moisture permeability tester
- Multi-Cup Design – Typically includes 6 or more test cups for simultaneous testing of multiple samples.
- Rotating Turntable – Ensures uniform air exposure and consistent vapor transmission across all samples.
- Precision Weighing System- Accurate measurement of weight loss to calculate water vapor transmission rate (WVTR).
- Temperature & Humidity Control – Maintains stable environmental conditions (e.g., 23°C, 50% RH) for reliable results.
- Digital Display or Software Interface – Displays real-time data and test status; advanced models offer data logging and export.
- Compliance with Standards – Supports ASTM E96, ISO 15496, BS 7209, JIS L1099 testing methods.
- Sealed Test Chambers- Prevents external air interference, improving accuracy.
- Corrosion-Resistant Construction – Durable materials suitable for long-term use in lab environments.
- Easy Sample Mounting – Quick and secure fabric placement on test cups with sealing rings.
- Low Maintenance Design- Simplified components for easy cleaning and upkeep.
How to Use Fabric Moisture Permeability Tester (Cup Method):
- Prepare the Test Solution – Fill each test cup with a set amount of water (e.g., 50 ml), or a desiccant if using inverted method.
- Mount the Fabric – Cut the fabric into circular pieces matching the cup size.
– Securely seal each fabric over the cup opening with a gasket and ring to prevent leakage.
- Weigh the Cups – Record the initial weight of each cup with the fabric mounted.
- Place on Turntable – Position all cups on the rotating tray inside the controlled chamber.
- Set Conditions – Close the chamber and maintain temperature (e.g., 23°C) and relative humidity (e.g., 50%) as per test standard.
- Start the Test – Begin rotation (usually ~2 RPM) and let it run for the specified time (often 24 hours).
- Weigh the Cups Again- After the test duration, reweigh the cups to determine weight loss due to moisture vapor passing through the fabric. Calculate WVTR – Use the formula: WVTR = (Weight Loss in grams × 24) / (Test Area in m² × Time in hours) Expressed in g/m²/24h.Clean and Store – Clean cups and components for future use.
fabric moisture permeability tester
Scope of application
It is used to determine the moisture permeability of various fabrics
(including moisture permeable coated fabrics)
and nonwovens such as batting cotton and space cotton.
[Related standards] GB/T12704 ASTM E90 JIS L1099A BS 7209 JIS L1099B (custom) etc.
Instrument characteristics
1. Integrated structure of baking oven and constant temperature and humidity box.
2. Microcomputer control, color touch screen Chinese menu operation.
3. Circulating air velocity 0.2-3m/s digital setting.
4. Imported high-precision temperature and humidity sensor, imported motor drive, ceramic
heating tube heating.
Technical parameters
1.Work mode: Microcomputer control, color touch screen Chinese menu operation, test environment monitoring.
2. Sample box control temperature:15 ~ 40 C, accuracy 0.1 + C, resolution 0.01 C
3. Heat dissipation mode:Air cooling
4. Sample box control humidity:30 ~ 95%, precision + 2%, resolution 0.01%
5. Test chamber humidification:≥300ml/h
6. Accompany oven control temperature: Room temperature to 200 c
7. Test time:1min~999h59min
8. The rate of circulating steam flow:0. 2-3m/s digital setting resolution 0.01m/s
9. Moisture permeability area:2827㎜2(∮60㎜GB)
Optional 3848, 2 (70 70 ASTM)
10. The number of moisture permeable cups.6 (GB) can be replaced by 6 (US standard).
11. Internal dimensions of drying oven:490×400×215mm
12. Power supply:Ac220V 50Hz 6kw
13. Size:930×820×1700mm
14. Weight:350kg
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VeriVide Colour Assessment Cabinets
VeriVide Colour Assessment Cabinets
VeriVide offers high-quality Colour Assessment Cabinets (CACs) such as the CAC 60-4, CAC 60-5, and CAC 120-4&5. These cabinets, originating from the UK, are reliable tools for visual evaluation in quality assurance, meeting national, international, and retailer standards. They effectively mitigate issues related to color assessment.VeriVide Colour Assessment Cabinets
High-quality visual evaluation tool for quality assurance. Adhering to national, international and retailer standards.Colour Assessment Cabinet's (CACs) reduce problems associated with assessing products or samples in different environments,be though geological or seasonal, offering a cost-effective method to ensure visual accuracy and product quality.
Color Light Box Enhance color precision with VeriVide's cutting-edge Colour Assessment
Cabinets. These cabinets are meticulously designed to ensure accurate color evaluation in various industries. Invest in VeriVide Colour Assessment Cabinets to elevate your color assessment process.
Enhance Color Precision with VeriVide's Cutting-Edge Assessment Cabinets, which meet or surpass ISO 3664 and BS 950 Part 1 international standards. The cabinets are adaptable to user requirements, with lamp options to choose different light sources. Available in 60, 120, and 150cm widths, VeriVide Colour Assessment Cabinets provide a flexible solution for accurate color assessment.
Incorporate user-friendly features like servicing indicator, auto sequence, warm-up, power save and data storage.4 or 5 light source options Versions available for colour fastness testing and particulate testing both adhering to global standardsEnsure that you are using the best equipment available as they provide the best fluorescent D65 daylight simulator, with the highest Colour
Rendering Index (CRI), available. VeriVide Colour Assessment Cabinets products are known as light boxes, viewing booths, colour cabinets and others, depending on which industry or country they are serving in. They are used within a wide array of industry sectors throughout the world including textile and apparel, graphics, automotive, ceramics, cosmetics, pharmacology (CAC Particulate),
food, footwear, packaging and printing.Download the Datasheet below for more information or click 'VeriVide CAC Datasheet Here' to get in touch with colour experts.
VeriVide CAC Datasheet Here Features of VeriVide Colour Assessment Cabinets
• CAC 60, CAC 120 and CAC 150 accommodate 60, 120 and 150cm tubes respectively
- Either 4 or 5 light sources available for each model including D65, D50, 840P15, F and UV - see Lamp Options.• Internal finishes in Munsell N5, Munsell N7 or Grey 5574 • Diffuser and/or dimmer options available Dimensions of VeriVide Colour Assessment Cabinets CAC 60-4 Dimensions (mm) Width Height Depth Overall 710 545 420
Fabric drape tester
Fabric Drape Tester
Fabric Drape Tester is a lab device used to measure the drape ability of fabric—how it hangs under its own weight. It assesses how fabric conforms in folds or waves, which affects garment appearance and comfort. Purpose of Fabric Drape Tester: To evaluate the aesthetic and functional behavior of a fabric when suspended, especially important in apparel and home textiles. Working Principle: A circular fabric specimen is placed over a smaller disc. The unsupported edges drape downward. A light source casts a shadow of the draped shape onto a recording surface or scanner. The area of the shadow is measured to calculate the drape coefficient. Main Components of Fabric Drape Tester: - Rotating Support Disc: Holds the fabric. - Light Source: Projects the drape shadow. - Paper or Digital Scanner: Captures the drape outline. - Template: For cutting fabric to standard test size. - Software or Plan meter: Calculates the drape coefficient. Applications of Fabric Drape Tester: - Fashion and apparel design - Fabric development - Quality control in woven, knitted, or nonwoven fabrics Benefits of Fabric Drape Tester:- Quantifies Fabric Flow - Measures drape behavior accurately, crucial for garments and furnishings.
- Supports Design Decisions - Helps designers select fabrics that match the intended look and movement of a product.
- Improves Garment Fit and Comfort - Ensures fabrics behave naturally on the body, enhancing wear ability.
- Enhances Product Aesthetics - Prevents stiff or limp fabric choices in fashion, interior, or technical textiles.
- Standardized Evaluation - Enables comparison across fabrics using drape coefficient, based on standards (e.g., BS 5058).
- Supports R&D - Useful in developing new fabrics or finishes to improve drape quality.
- Non-Destructive Testing - Tests fabric without damaging it, allowing for further analysis.
- Boosts Quality Control - Identifies batch inconsistencies or performance issues early in production.
- Rotating Support Disc - Holds the fabric sample over a smaller disc to create natural drape.
- Standard Sample Size Support - Designed for circular fabric samples, usually 30 cm in diameter.
- Light Projection System - Projects the draped fabric’s shadow onto a screen or recording surface.
- Drape Coefficient Calculation - Measures the shadow area to compute the drape coefficient (percentage of unsupported area covered by the shadow).
- Digital or Manual Options - Available in models with digital image processing or manual plan meter tracing.
- Stable Base and Structure - Ensures consistent and vibration-free testing conditions.
- Sample Templates Provided - For cutting precise, standard-sized fabric specimens.
- User-Friendly Interface - Simple controls for rotation and light alignment.
- Compact and Lab-Ready Design - Fits easily on lab benches and in testing environments.
- Compliance with Testing Standards - Supports BS 5058 and other relevant drape measurement methods.
- Prepare the Fabric Sample - Cut a circular fabric sample, typically 30 cm in diameter, using the provided template.
- Place the Fabric - Center the fabric sample over the smaller support disc (usually 18 cm diameter) on the tester.
- Turn on the Light Source - Illuminate the fabric from above so it casts a shadow onto the recording surface or paper below.
- Capture the Shadow Outline - Trace the shadow manually on paper or capture it digitally, depending on the model.
- Measure the Shadow Area - Use a plan meter (manual) or software (digital) to determine the shadow’s area.
- Calculate Drape Coefficient (DC) - Use the formula:
- Record the Result - Log the drape coefficient to evaluate how stiff or flexible the fabric is.
- Repeat for Accuracy - Test multiple samples and average the results for consistency.
It is used for testing dynamic and static drape properties
(drape coefficient, shape change rate, surface ripple and drape uniformity, etc.)
of various fabrics.
Related standards GB/T23329 FZ/01045 BS5058 etc.
Instrument characteristics
1. CCD imaging, dynamic and static image processing.
2. A variety of charts and data statistics, analysis, storage, output
3. No need to replace background color, can test all kinds of color samples.
4. Work mode:Microcomputer control, CCD imaging, automatic processing of images and data automatically.
Technical parameters
1. Communication interface: RS232, USB
2. Image sensor: CCD sensor.
3. Static (dynamic) state draping coefficient: 0 ~ 100% + 2
4. Drapability uniformity: 0 ~ 100% + 2
5. The rate of morphological change is 0 to 100% + 2.
6. Surface waviness error: + 1 Gray scale
Gray Scale

Gray Scale
- Gray Scale for Color Change - Compares the original and tested sample to measure color fading or alteration.
- Gray Scale for Staining - Compares a white adjacent fabric (before and after testing) to assess color transfer or staining.
- Standardized Evaluation - Provides a consistent and objective way to assess color change or staining.
- Simple and Quick to Use - Enables rapid visual comparison during fabric testing.
- Widely Accepted - Complies with international standards (ISO, AATCC) for color fastness grading.
- Cost-Effective Tool - Inexpensive yet essential for reliable quality control in textiles.
- Enhances Quality Assurance - Helps detect dyeing or printing issues before bulk production.
- Supports Multiple Tests - Used for evaluating wash fastness, rubbing fastness, perspiration, light exposure, and more.
- Portable and Durable - Easy to carry and long-lasting with proper care.
- Dual Type Availability - Comes in two types: for Color Change and for Staining.
- 5-Point Grading System - Grades from 1 (poor) to 5 (excellent), with half-step intervals like 4–5, 3–4.
- Standardized Grey Chips - Includes contrasting grey color pairs to match fabric changes accurately.
- Compact Design - Small, portable card or booklet format for easy lab and field use.
- Durable Material - Made from stable, fade-resistant plastic or cardboard for long-term use.
- Compliance with Standards - Follows ISO 105-A02 (Color Change) and ISO 105-A03 (Staining) norms.
- Easy Visual Comparison - Designed for quick side-by-side assessment of fabric before and after testing.
- Place the Samples - Lay the untested (original) and tested fabric side by side (for color change)
- Match Against Gray Scale Chips - Visually compare the difference between the samples and find the closest matching gray pair on the scale.
- Assign a Grade
- Record the Result - Note the grade in your test report as per the test method (e.g., ISO 105).
- Store Properly - Keep the gray scale away from light and moisture to avoid fading.
- Features :
- Dual Type Availability - Comes in two types: for Color Change and for Staining.
- 5-Point Grading System - Grades from 1 (poor) to 5 (excellent), with half-step intervals like 4–5, 3–4.
- Standardized Grey Chips - Includes contrasting grey color pairs to match fabric changes accurately.
- Compact Design - Small, portable card or booklet format for easy lab and field use.
- Gray Scale for Color Change - Used to evaluate the degree of color fading or change in a fabric after testing (e.g., washing, light exposure). - Assesses how much the original color has altered.
- Gray Scale for Staining - Used to assess the degree of color transfer from a dyed fabric to an adjacent white fabric during testing (e.g., rubbing, washing).

Gray Scale
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Fabric flame retardant tester
Fabric Flame Retardant Tester
A Fabric Flame Retardant Tester is a specialized laboratory instrument designed to evaluate the flammability characteristics of textiles. It assesses how fabrics react to direct flame exposure, measuring parameters such as ignition time, flame spread rate, after-flame duration, and afterglow time. This testing is crucial for ensuring that textiles meet safety standards for various applications, including apparel, home furnishings, and industrial uses. Purpose and Applications The primary purpose of a Fabric Flame Retardant Tester is to determine the flame resistance of textile materials. This is essential for:- Apparel Safety: Ensuring garments, especially children's sleepwear and industrial work wear, meet flammability standards. - Home Textiles: Testing curtains, drapes, upholstery, and bedding for fire safety compliance. - Technical Textiles: Evaluating materials used in tents, protective clothing, and automotive interiors. ⚙️ Key Features Modern Fabric Flame Retardant Testers incorporate several features to ensure accurate and reliable testing:- Adjustable Burner Angles: Allowing tests at various orientations (e.g., 0°, 45°, 90°) to simulate different real-world scenarios. Automated Ignition Systems: Providing consistent flame application and reducing operator variability. - Digital Timing Mechanisms: Accurately recording ignition time, flame spread, after-flame, and afterglow durations. - Transparent Observation Windows: Enabling safe monitoring of the test without exposure to hazards. - Compliance with International Standards: Meeting protocols such as ASTM D6413, ISO 6941, and EN ISO 15025 for standardized testing procedures. Testing Standards Fabric Flame Retardant Testers are designed to comply with various international standards, including: - ASTM D6413: Standard Test Method for Flame Resistance of Textiles (Vertical Test). - ISO 6941: Textiles — burning behavior — Measurement of flame spread properties of vertically oriented specimens. - EN ISO 15025: Protective clothing — Protection against heat and flame — Method of test for limited flame spread. ️ How It Works- Sample Preparation: A fabric specimen is cut to specified dimensions and conditioned as per standard requirements.
- Mounting: The sample is mounted vertically or at a specified angle in the testing chamber.
- Ignition: A controlled flame is applied to the fabric for a predetermined time.
- Observation: The tester records ignition time, flame spread, after-flame time, and afterglow time.
- Evaluation: Results are compared against standard criteria to determine compliance.
- Prepare the Sample
- Mount the Sample
- Set Up the Burner Position the burner at the required angle (usually 90° for vertical tests).
- Ignite the Flame - Apply the flame to the bottom edge of the fabric for 12 seconds.
- Observe and Measure - Start timing when flame is applied.
- Record the Results
- Compare with Standards
burning of flammable textile materials after ignition.
(specific ignition nozzles and sample holders can be customized to meet multiple criteria).
Related standards
GB/T14644 ASTM D1230 CFR1610 etc.
Technical parameters
1. The spread of time:0 ~ 999.9S resolution 0.1S
2. The temperature inside the box shows:Room temperature -99 degrees C resolution 1 c
3. Igniting time:1S
4. Type of igniter:4 1/2 syringe
5. Sample clip size:Outer frame:204mm * 78mm inner frame:152mm×38mm
6. Distance from the top of the igniter to the sample surface:8mm
7. Studio size and outline size
Studio size:370mm×220mm×350mm
Outline size:375mm×245mm×478mm
8. Power supply:AC220V 50Hz 20W
9. Weight:18Kg
Color Matching Cabinet-Light Box
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