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Gray Scale
Gray Scale
The Gray Scale is a visual tool used in the textile and dyeing industry to evaluate and grade the color change or staining of a fabric after testing (e.g., washing, rubbing, and light exposure). It helps assess how much a fabric’s color has altered or transferred during durability or fastness tests.
Types of 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.
Rating System :
– Uses a 1 to 5 scale:
– Grade 5: No change or staining (excellent)
– Grade 1: Severe change or heavy staining (poor)
Intermediate grades (like 4–5, 3–4, etc.) are also used for finer evaluation.
Construction :- Each scale includes pairs of gray chips with varying contrast levels to visually match the test results.
Usage Areas:- Textile testing labs- Dyeing and finishing quality control- Standards like ISO, AATCC, and BIS tests
Benefits :
- 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.
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.
- 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.
How to Use :
Select the Right Gray Scale – Use Color Change scale to check fading, or staining scale to check color transfer.
- Place the Samples – Lay the untested (original) and tested fabric side by side (for color change)
– Or place the adjacent white fabric next to the gray scale (for staining).
- 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
– Grade from 1 to 5, where:
– Grade 5 = no change/staining
– Grade 1 = severe change/staining
– Use half-grades like 4–5 if needed.
- 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.
Categories:
- 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).
– Evaluates staining on undyed fabrics.
These two types are essential tools in color fastness testing across textile labs. Want to know which standard tests use each type?
Gray Scale
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Fabric Stiffness Tester
Fabric Stiffness Tester
Fabric Stiffness Tester
- Accurate Measurement of Flexibility - Provides reliable data on fabric stiffness, essential for quality control and product development.
- Improves Product Comfort - Helps assess how soft or rigid a fabric will feel in clothing or furnishings.
- Supports Material Selection - Aids designers and engineers in choosing the right fabric for specific applications based on stiffness.
- Quality Assurance - Detects fabric inconsistencies or defects that affect handling or drape.
- Standards Compliance - Enables testing as per international standards like ASTM D1388 and ISO 9073-7 for global product approval.
- Quick and Simple Operation - Delivers fast results with minimal operator training or preparation.
- Applicable to Multiple Materials - Suitable for woven, nonwoven, knitted fabrics, paper, and films.
- Enhances R&D Accuracy - Supports consistent material testing during product innovation and textile finishing.
- Graduated Measurement Scale - Precise scale to measure overhang length for accurate stiffness calculation.
- Flat Test Platform - Smooth, level surface ensures consistent and reliable fabric movement.
- Standard Deflection Angle Guide - Built-in 41.5° angle reference for consistent stiffness testing (per ASTM/ISO).
- Manual or Motorized Models - Available in both types for simple or automated operation depending on lab needs.
- Compact Design - Space-saving unit ideal for textile labs and quality control rooms.
- Sample Holder or Clamp - Ensures correct alignment and smooth feeding of fabric strips during testing.
- Durable Construction - Made of corrosion-resistant materials like stainless steel or aluminum for long-term use.
- Compliance with Standards - Supports methods like ASTM D1388, ISO 9073-7 for stiffness testing of fabrics.
- Lightweight and Portable - Easy to move and use in various lab settings.
- Low Maintenance - Simple mechanical parts require minimal servicing.
- Prepare the Sample - Cut the fabric into a rectangular strip (e.g., 25 mm × 200 mm), as per standard.
- Place the Sample - Lay the fabric strip flat on the test platform with one end aligned at the zero mark.
- Slide the Fabric - Gently push the fabric forward so it slowly overhangs the platform.
- Watch for Deflection - Stop sliding when the free end of the fabric bends down to the reference angle (typically 41.5°).
- Read the Bending Length - Measure the overhang distance from the scale. This is the bending length (C).
- Calculate Flexural Rigidity
- Repeat for Accuracy - Test both warp and weft directions and average the results for better accuracy.
Scope of application
It is used to measure the stiffness of cotton,
wool, silk, linen, chemical fibers and other woven fabrics,
knitted fabrics, general nonwovens, coated fabrics, etc.
It is also suitable for measuring the stiffness of paper,
leather, film and other flexible materials.
Relevant Standards
GB/T 18318, ASTM D 1388, IS09073-7, BS EN22313 etc.
[Instrument Characteristics]
1. Infrared photoelectric invisible inclined plane
detection system replaces the traditional tangible inclined plane,
realizes non-contact detection, and overcomes the problem that
the measurement accuracy is affected by
the sample torsion lifted by the inclined plane.
2. The inclination adjustable mechanism of instrument
measurement to meet different test requirements.
3. Stepping motor drive, accurate measurement, smooth operation;
4. The color touch screen display can show the extended length,
bending length, bending stiffness of the sample, the warp average,
the weft average and the total average of the above values respectively.
5. Printing of Chinese report forms for thermal printers.
Technical parameters
1. Test methods: The two method (A method: Weft test, B method: Forward and backward test)
2. Measurement angle:41.5 degree, 43 degree and 45 degree adjustable
3. Extend the length range:5-220 mm (special requirements can be made at the time of ordering)
4. Length resolution:0.01mm
5. Measurement accuracy:±0.1mm
6. Specimen specifications:250×25mm
7. Work platform specifications:250×50mm
8. Specification of sample pressing plate:250×25mm
9. Pushing speed of press plate:3 mm/s; 4 mm/s; 5 mm/s
10. Display output: Touch screen display
11. Print Output: Chinese Report
12. Data Processing Volume: A total of 15 groups, each group less than 20 trials
13. Printer: Thermal printer
14, power supply:AC220V 50Hz
15. Host volume:570mm×360mm×490mm
16. Host weight:20kg 
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
Hydraulic GSM Cutter
Hydraulic GSM Cutter
Hydraulic GSM Cutter
- High Cutting Precision - Ensures consistent and accurate fabric sample size for reliable GSM results.
- Effortless Operation- Hydraulic action reduces manual effort and operator fatigue.
- Ideal for Thick or Multi-Layer Fabrics - Cuts through dense or multiple fabric layers cleanly.
- Time-Saving - Speeds up the sample preparation process, especially for high-volume testing.
- Improves Test Accuracy - Uniform samples help eliminate errors in GSM calculation.
- Durable and Long-Lasting - Robust construction ensures stability and extended service life.
- Safety Enhancement - Reduces risk of injury compared to manual rotary cutters.
- Consistent Pressure Application - Hydraulic mechanism maintains steady force for each cut.
- Hydraulic Press Mechanism - Applies consistent and strong pressure for clean, even cuts.
- Standard Cutting Die (100 cm²) - Produces fabric samples suitable for GSM testing with standard area.
- Heavy-Duty Construction - Built with robust metal frame for long-term lab or industrial use.
- Sharp Stainless Steel Blades - Durable and replaceable blades ensure smooth, precise cuts.
- Cutting Pad Included - Comes with a rubber or nylon base to protect blades and ensure clean edges.
- Simple Lever or Button Operation - Easy to use with minimal training required.
- Non-slip Base - Provides stability during operation for safe, accurate cutting.
- Supports Various Fabric Types
- Place the Cutting Pad - Lay the rubber or nylon cutting pad on a flat surface.
- Position the Fabric - Place the fabric sample flat and smooth on the cutting pad.
- Align the Cutter - Position the GSM cutter die over the desired area of the fabric.
- Activate Hydraulic Press - Pull the lever or press the button to apply hydraulic pressure and cut the sample.
- Remove the Sample - Lift the cutter and carefully take out the circular fabric piece (usually 100 cm²).
- Weigh the Sample - Place the cut sample on a precision balance or GSM scale to determine weight.
- Calculate GSM - Multiply the sample weight (in grams) by 100 to get GSM.
Hydraulic GSM Cutter
Laboratory mini stenter Dryer
Laboratory mini stenter Dryer
Automatic fixing Dryer
- Controlled Heating System
- Adjustable Fabric Width
- Variable Speed Conveyor - Allows control over fabric dwell time for drying or heat-setting.
- Compact and Bench-Top Design - Space-saving design ideal for textile labs and R&D units.
- Digital Controls - Easy-to-use digital interface for setting temperature, conveyor speed, and process time.
- Transparent Viewing Window - Allows operators to monitor fabric movement and drying visually.
- Low Energy Consumption - Designed for lab use, consuming less power than industrial models.
- Accurate Simulation of Production - Mimics industrial stenter conditions on a lab scale, ideal for pre-production testing and R&D.
- Cost-Effective Testing - Enables testing and fabric finishing without the high cost or space requirements of full-scale machines.
- Energy Efficient - Consumes less power compared to large stenters, making it economical for small-scale or frequent use.
- Precise Control - Offers accurate control of temperature, speed, and fabric tension, ensuring consistent results.
- Space-Saving Design - Compact and bench-top friendly, perfect for laboratories with limited space.
- Multiple Applications - Useful for drying, heat-setting, shrinkage testing, and evaluating chemical finishes.
- Faster Development Cycles - Speeds up new product development by allowing rapid sample testing and adjustments.
- Improved Fabric Quality - Helps optimize finishing parameters for better dimensional stability, hand feel, and appearance.
- Safe and User-Friendly- Designed with lab safety in mind, including temperature safety controls and easy operation.
- Compact Bench-Top Design - Ideal for laboratory use with limited space requirements.
- Adjustable Temperature Control - Precise heating (usually up to 220–250°C) with digital controllers for accurate processing.
- Variable Conveyor Speed- Allows adjustment of fabric dwell time for different drying or heat-setting needs.
- Width Adjustment Mechanism - Equipped with clips or pins to stretch and fix fabric width-wise, simulating industrial stenter conditions.
- Transparent Viewing Window - Enables visual monitoring of fabric movement and drying inside the chamber.
- Digital Display Panel- Easy-to-use interface for setting and monitoring temperature, speed, and time.
- Stainless Steel Construction- Durable and corrosion-resistant for long-term use at high temperatures.
- Uniform Heat Distribution- Ensures consistent fabric treatment across the width.
- Safety Features- Over-temperature protection and insulated body for operator safety.
- Versatile Applications - Suitable for drying, heat-setting, shrinkage testing, and chemical finish evaluations.
Fabric flame retardant tester
Fabric Flame Retardant Tester
Fabric Flame Retardant Tester
- 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
