Fabric Drape Tester
Fabric Drape Tester
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    Fabric drape tester

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    Fabric Drape Tester
    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:

    1. Quantifies Fabric Flow – Measures drape behavior accurately, crucial for garments and furnishings.
    2. Supports Design Decisions – Helps designers select fabrics that match the intended look and movement of a product.
    3. Improves Garment Fit and Comfort – Ensures fabrics behave naturally on the body, enhancing wear ability.

     

    1. Enhances Product Aesthetics – Prevents stiff or limp fabric choices in fashion, interior, or technical textiles.
    2. Standardized Evaluation – Enables comparison across fabrics using drape coefficient, based on standards (e.g., BS 5058).
    3. Supports R&D – Useful in developing new fabrics or finishes to improve drape quality.

     

    1. Non-Destructive Testing – Tests fabric without damaging it, allowing for further analysis.
    2. Boosts Quality Control – Identifies batch inconsistencies or performance issues early in production.

     

    Features of Fabric Drape Tester:

    1. Rotating Support Disc – Holds the fabric sample over a smaller disc to create natural drape.
    2. Standard Sample Size Support – Designed for circular fabric samples, usually 30 cm in diameter.
    3. Light Projection System – Projects the draped fabric’s shadow onto a screen or recording surface.

     

    1. Drape Coefficient Calculation – Measures the shadow area to compute the drape coefficient (percentage of unsupported area covered by the shadow).
    2. Digital or Manual Options – Available in models with digital image processing or manual plan meter tracing.
    3. Stable Base and Structure – Ensures consistent and vibration-free testing conditions.

     

    1. Sample Templates Provided – For cutting precise, standard-sized fabric specimens.
    2. User-Friendly Interface – Simple controls for rotation and light alignment.
    3. Compact and Lab-Ready Design – Fits easily on lab benches and in testing environments.
    4. Compliance with Testing Standards – Supports BS 5058 and other relevant drape measurement methods.

     

    How to Use Fabric Drape Tester:

    1. Prepare the Fabric Sample – Cut a circular fabric sample, typically 30 cm in diameter, using the provided template.
    2. Place the Fabric – Center the fabric sample over the smaller support disc (usually 18 cm diameter) on the tester.
    3. Turn on the Light Source – Illuminate the fabric from above so it casts a shadow onto the recording surface or paper below.

     

    1. Capture the Shadow Outline – Trace the shadow manually on paper or capture it digitally, depending on the model.
    2. Measure the Shadow Area – Use a plan meter (manual) or software (digital) to determine the shadow’s area.
    3. Calculate Drape Coefficient (DC) – Use the formula:

    DC (%) = (Shadow Area – Support Disc Area) / (Full Fabric Area – Support Disc Area) × 100

     

    1. Record the Result – Log the drape coefficient to evaluate how stiff or flexible the fabric is.
    2. Repeat for Accuracy – Test multiple samples and average the results for consistency.

     

     

    fabric drape tester

    Scope of application

    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

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      1. Temperature & Humidity Control - Maintains stable environmental conditions (e.g., 23°C, 50% RH) for reliable results.
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      1. Sealed Test Chambers- Prevents external air interference, improving accuracy.
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      3. Easy Sample Mounting - Quick and secure fabric placement on test cups with sealing rings.
      4. Low Maintenance Design- Simplified components for easy cleaning and upkeep.
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      1. 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.
      2. Mount the Fabric - Cut the fabric into circular pieces matching the cup size.
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      1. Weigh the Cups - Record the initial weight of each cup with the fabric mounted.
       
      1. Place on Turntable - Position all cups on the rotating tray inside the controlled chamber.
      2. Set Conditions - Close the chamber and maintain temperature (e.g., 23°C) and relative humidity (e.g., 50%) as per test standard.
      3. Start the Test - Begin rotation (usually ~2 RPM) and let it run for the specified time (often 24 hours).
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      3. Heavy-Duty Construction - Built with robust metal frame for long-term lab or industrial use.
       
      1. Sharp Stainless Steel Blades - Durable and replaceable blades ensure smooth, precise cuts.
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      3. Simple Lever or Button Operation - Easy to use with minimal training required.
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      5. Supports Various Fabric Types
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      2. Position the Fabric - Place the fabric sample flat and smooth on the cutting pad.
      3. Align the Cutter - Position the GSM cutter die over the desired area of the fabric.
      4. Activate Hydraulic Press - Pull the lever or press the button to apply hydraulic pressure and cut the sample.
       
      1. Remove the Sample - Lift the cutter and carefully take out the circular fabric piece (usually 100 cm²).
      2. Weigh the Sample - Place the cut sample on a precision balance or GSM scale to determine weight.
      3. Calculate GSM - Multiply the sample weight (in grams) by 100 to get GSM.
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      Digital Elmendorf Tearing Tester

      Digital Elmendorf Tearing Tester

        Digital Elmendorf Tearing Tester is a precision instrument used to measure the tear strength of materials like woven fabrics, paper, plastic films, and nonwovens. It determines how much force is required to continue tearing a pre-slit sample. Key Functions of Digital Elmendorf Tearing Tester: - Measures propagation tear resistance, not initial tear. - Uses a pendulum to apply force; the energy lost during tearing is calculated to determine tear strength. - Equipped with a digital display for direct reading of results in grams or millinewtons. Core Components: - Pendulum Arm: Applies tearing force. - Clamps: Secure the sample before and after the tear. - Cutting Blade: Creates a precise slit at the start of the test. - Digital Display Unit: Shows the tearing force result clearly and instantly. - Counterweights: Optional weights for increasing test range (for stronger materials).   Applications of Digital Elmendorf Tearing Tester: - Testing tear resistance of: - Textile fabrics (especially woven) - Paper and cardboard - Plastic films - Nonwovens - Packaging materials Benefits of Digital Elmendorf Tearing Tester:
      1. Accurate Tear Strength Measurement - Provides precise data on tear resistance, critical for quality control and product performance.
      2. Digital Readout - Easy-to-read display gives instant, reliable results without manual calculations.
      3. High Reproducibility - Ensures consistent test outcomes due to controlled tearing angle and speed.
       
      1. Fast Testing Process - Simple loading and quick test cycle increase lab efficiency.
      2. Suitable for Various Materials - Tests a wide range of flexible materials like textiles, paper, plastic, and packaging.
      3. Customizable Range - Use of optional weights extends the test range for low to high tear strength materials.
      4. Low Sample Waste - Requires small fabric or material samples, reducing waste during testing.
      5. Standards Compliance - Meets international testing standards (e.g., ASTM D1424, ISO 13937) for credibility and uniformity.
      Features of Digital Elmendorf Tearing Tester: Digital Display - Provides accurate and direct reading of tear strength in grams, mN, or cN. Pendulum Mechanism - Uses a swinging pendulum to simulate tear propagation with consistent force. Adjustable Test Range - Includes interchangeable pendulum weights to test various material strengths.
      1. Precision Sample Clamp - Securely holds samples in place to ensure accurate tear initiation.
      2. Pre-Cutting Blade - Integrated knife creates a precise initial slit in the sample before tearing.
      3. User-Friendly Interface - Simple buttons and screen navigation for ease of operation.
      4. Standard Test Compliance - Compatible with ASTM D1424, ISO 1974, ISO 13937, and other tear strength standards.
      1. Sturdy Construction - Made with durable materials for long-lasting performance and stable operation.
      2. Compact Design - Space-efficient footprint ideal for laboratory environments.
      3. Data Output Options- Some models offer USB or printer connectivity for result documentation.
      How to Use a Digital Elmendorf Tearing Tester:
      1. Prepare the Sample - Cut the material (fabric, paper, film, etc.) to standard size (typically 100 × 63 mm for textiles) and slit it with the pre-cutter as required.
      2. Select Pendulum Weight - Choose the appropriate pendulum or add counterweights based on expected tear strength.
      1. Calibrate the Machine - Set the pendulum to its starting position and zero the display.
      2. Clamp the Sample - Fix one half of the sample in the stationary clamp and the other in the moving clamp.
      3. Cut the Initial Slit - Use the integrated blade to make a precise cut at the marked slit area (usually 20 mm).
      1. Release the Pendulum - Trigger the pendulum to swing and tear the sample through the pre-slit.
      2. Read the Result - The digital display will show the tearing force automatically (in g, mN, or cN).
      3. Record or Export Data - Save or print the result if your model supports USB or printer connection.
      4. Reset for Next Test - Reposition the pendulum and prepare a new sample for the next cycle.
      Safety Tip: - Always ensure your hands are clear before releasing the pendulum.   Digital Elmendorf tearing tester Scope of application It is used for the determination of the tear resistance of various woven fabrics (Elmendorf method), and it can also be used for the determination of the tear resistance of thick paper, plastic sheeting, electrical tape, etc. Related standards GB/T 3917.1 FZ/T60006 FZ/T75001 ISO1974/9290 ASTM D1424/5734 etc. Instrument characteristics 1. Maximum 300N test range 2. Microcomputer control, digital decoding, support online communication 3. Color touch screen control, Chinese and English menu operation interface 4. Pneumatic clamping, automatic cutting 5. A variety of measurement units (cN, gf) selection 6. Fully automatic operation with safe operation protection. 7. Automatically increase potential energy [Technical parameter]: 1. Test range: first gear: (0～16)N second gear: (0～32)N third gear: (0～ 64)N fourth gear: (0～128)N fifth gear: (0～300)N 2. Test accuracy: ≤±0.2%F·S 3. Tearing length: 43mm (non-standard 30-60mm can be set) 4. Automatic incision length: (20±0.2)mm 5. Sample size: (100×63)mm 6. Specimen clamping: pneumatic way 7. Sample test: Up to 10 sets per group on the device side, and 30 sets of data can be selected to be saved 8. Power supply: AC220V±10% 50Hz 100W 9. Dimensions: (650×660×680)mm 10. Weight: 50kg [Sample of control interface]:(English version is also available.)
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