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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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Related products
fabric moisture permeability tester
Fabric Moisture Permeability Tester
Fabric Moisture Permeability Tester
Fabric Moisture Permeability Tester
- 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.
- 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.
- 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.
- 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.
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 
Digital Temperature Humidity Meter
Digital Temperature Humidity Meter
Digital Temperature Humidity Meter
Counting Balance-Weighing Scale
Counting Balance-Weighing Scale
Counting Balance-Weighing Scale
Counting Balance-Weighing Scale
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
Fastness Rotary Friction Tester
Fastness Rotary Friction Tester
Fastness Rotary Friction Tester
- Accurate Colorfastness Evaluation- Provides precise assessment of how well fabric resists color loss and staining from rubbing.
- Simulates Real-World Wear - Recreates rotational friction found in actual use (e.g., seat covers, apparel wear points).
- Supports Wet & Dry Testing - Can test under both dry and wet conditions for comprehensive results.
- Standardized Testing - Complies with global standards (AATCC 116, ISO 105 X16), ensuring reliable and comparable results.
- Time-Saving & Efficient - Quick to set up and run, allowing for high-throughput testing in labs.
- Versatile Use- Suitable for textiles, leather, coated fabrics, and printed surfaces.
- Improves Quality Control - Identifies potential durability issues early in the production process.
- Enhances Product Performance - Helps in developing fabrics with better resistance to rubbing and abrasion.
- Rotary Rubbing Mechanism - Simulates 1.125 clockwise and 1.125 counterclockwise turns for realistic friction.
- Standardized Rubbing Head - Fixed diameter (typically 16 mm) with specified pressure (≈1134 g) for consistent results.
- Dry and Wet Testing Capability - Can perform tests using dry or wet rubbing cloths.
- Sample Holder- Secure and easy-to-use fixture for holding fabric samples in place.
- Test Cloth Mounting Arm- Quick attachment for standardized white rubbing cloths.
- Simple Operation - Manual or motorized operation depending on model; easy to handle for lab technicians.
- Compliance with Standards - Follows AATCC 116, ISO 105 X16, and SATRA TM8 protocols.
- Prepare the Sample - Cut a fabric piece (typically 60 × 60 mm) and condition it per standard requirements.
- Mount the Fabric - Secure the fabric sample on the sample holder or base plate of the tester.
- Attach Rubbing Cloth - Place a standard white test cloth (dry or wetted as required) over the rubbing head.
- Apply Pressure - Lower the rubbing head onto the fabric. Standard weight is about 1134 g.
- Start the Test - Operate the tester: the head performs 1.125 turns clockwise, then 1.125 turns counterclockwise.- Number of cycles (typically 10 or 20) is set based on the test standard.
- Remove and Inspect - After testing, remove the rubbing cloth and assess any color transfer using a gray scale.
- Evaluate Fabric Surface - Check the fabric for visible changes, fading, or wear.
- Record Results - Grade both staining and fabric change per standard gray scale ratings.
It is used to change the color fastness of the textile,
printing and dyeing, printing and other products after a specific track friction.
[Related standards]
GB / T29865 AATCC116 ISO105-X16, etc.
[Instrument characteristics]:
1.Single-chip control, speed can be set freely
2.Imported motor, linear guide, low noise, suitable for long time work
3. Liquid crystal display, film panel
4. Freely set the number of friction, can count up and down,
and automatically stop the alarm when the set value is reached
[Technical Parameters]:
1. Friction head diameter: 16mm 25mm
2. Vertical pressure: 11.1N
3. Working mode: 405 ° clockwise and 405 ° counterclockwise
4. Speed range: constant 60 rpm, LCD display, thin mold panel
5. Counting range: 0-99999 times
6. Power supply: AC 220V 50Hz 80W
7. Weight: 20KG
8. Volume: L420mm × W260mm × H430mm 
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 
