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A Leather Rubbing Fastness Tester, often referred to as a Veslic or IULTCS rubbing fastness tester, is a laboratory instrument designed to evaluate the durability of leather finishes and their resistance to color transfer (staining) or damage (marring) due to dry or wet rubbing. This testing is crucial for materials used in footwear uppers, linings, and garments, ensuring they withstand normal wear and friction.
Key Features and Capabilities
- Reciprocating Action: The machine simulates wear by moving a small, weighted friction finger (usually 15mm x 15mm) back and forth across the leather sample.
- Dry and Wet Testing: Tests can be performed with dry, wet (distilled water), or solvent-dampened (e.g., alcohol, perspiration) white wool felt pads.
- Standardized Load: The rubbing head typically applies a 500g load, with options to add weights to reach 1000g, according to standards like ISO 11640.
- Digital Control: Modern units feature LCD displays, programmable cycle counts, and auto-stop functions with power-off memory.
- Sample Tension: The tester allows for a 10% tension extension on the leather sample to simulate real-world conditions.
Common Standards
The testers are manufactured to comply with various international standards, including:
- ISO 11640/17700: Leather – Tests for colour fastness.
- VESLIC C4500: Swiss leather testing standard.
- QB/T 2537/2882: Chinese standards for leather testing.
- SATRA TM173/TM177: Methods for color fastness and scuffing resistance.
Evaluation Method
After a specific number of cycles (e.g., 10, 20, 50, 100), the test specimen and the rubbing pad are inspected:
- Staining: The white felt pad is compared against a Grey Scale for Staining to check how much color was transferred.
- Damage: The leather sample is examined for damage, surface cracking, or color change.
Types of Testers
- Single-Head/Station: Suitable for smaller labs, often portable.
- Multi-Head (4-6 stations): Allows for multiple samples to be tested simultaneously, enhancing efficiency.
- Rotary/Circular: Uses a circular motion to test rubbing on uppers and fabrics.
These instruments are vital for Quality Control (QC) in tanneries and footwear factories, with prices ranging from roughly $800 to over $3,000 depending on complexity and station count.
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SATRA STM 421 Rub fastness tester
SATRA
https://www.satra.com › test_equipment › machine
SATRA
https://www.satra.com › test_equipment › machine
This machine is designed to carry out a rub fastness test on the surface of leather to determine the amount of 'marring' of the leather surface or the finish.Read more
Veslic Rub Fastness Tester UI-FT23
Unuo Instruments
https://www.unuo-instruments.com › Products
Unuo Instruments
https://www.unuo-instruments.com › Products
Veslic Rub Fastness Tester is used to test leather rub color fastness by to-and-for rubbing with a wool felt. And it is suitable to test all kinds of leathers.Read more
IULTCS Leather Rubbing Fastness Tester
Haida test equipment
https://www.haidatestequipment.com › iultcs-leather-ru...
Haida test equipment
https://www.haidatestequipment.com › iultcs-leather-ru...
IULTCS Leather Rubbing Fastness Tester. APPLICATION. The machine in the test dyeing uppers, leather lining, after rubbing the extent of damage and ...Read more
IULTCS Veslic Rub Fastness Tester
Amade-Tech
https://www.amade-tech.com › product › iultcs-veslic-r...
Amade-Tech
https://www.amade-tech.com › product › iultcs-veslic-r...
IULTCS & Veslic Rub Fastness tester is used to determine the color fastness of the leather to cycles of to-and-fro rubbing.Read more
Textile & Leather Dry Wet Rubbing Fastness Tester Hand ...
Amazon.com
https://www.amazon.com › Azcabjie-Textile-Fastness-T...
Amazon.com
https://www.amazon.com › Azcabjie-Textile-Fastness-T...
▷【Double Bearing】:The dual bearing design allows for more flexible and convenient rotation of the dry and wet friction fastness tester.Read more
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What is Color Fastness to Rubbing and Test Method
Textile Tester
https://darongtester.com › Knowledge
Textile Tester
https://darongtester.com › Knowledge
May 4, 2023 — A color fastness rubbing tester is a testing equipment used to determine the resistance of colors against rubbing or friction.Read more
Rotary Rubbing Fastness Tester
SATATON
https://www.satatonmall.com › rotary-rubbing-fastness-te...
SATATON
https://www.satatonmall.com › rotary-rubbing-fastness-te...
Leather circular rubbing fastness tester is designed to assess the degree of damage and transfer of a material's surface color during mild dry or wet abrasion.Read more
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People also ask
What is the rub test for leather?
The test consists of rubbing leather specimens. These are rubbed with a dry or wet rubbing cloth attached to a cylindrical finger that is moved back and forth under controlled conditions. Colour transferred to the white rubbing cloth is assessed with the grey scale for staining.Apr 24, 2025
Color fastness to rubbing (dry and wet conditions) - CTC
CTC
https://www.ctcgroupe.com › laboratory-analysis-test › c...
CTC
https://www.ctcgroupe.com › laboratory-analysis-test › c...
How to check rubbing fastness?
How Rubbing Fastness Tests Are Conducted
- First, the fabric sample is conditioned and mounted securely on the test bed.
- A white test cloth is then attached to the rubbing finger of a crockmeter, which is pressed against the fabric under a fixed pressure; usually around 9N (Newton).
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Rubbing Fastness Explained: Tests, Ratings & Solutions - Fineotex
Fineotex
https://fineotex.com › blog-rubbing-fastness-explained-te...
Fineotex
https://fineotex.com › blog-rubbing-fastness-explained-te...
How do you test if a mat is colour fast?
Test for Colourfastness
- Place the swatch of fabric or clip of yarn in a jar with water and the cleaning agent you intend to use.
- Shake the jar to see if the water changes colour and how many suds you get.
- If colour appears, use caution.
Test for Colourfastness - Eucalan
Eucalan
https://eucalan.com › laundry-lessons › test-colourfastness
Eucalan
https://eucalan.com › laundry-lessons › test-colourfastness
What is the difference between rubbing and crocking?
Rubbing fastness is a change in colour of the rubbed textile (by bleeding and fading) and crocking fastness is the migration of colour from the dyed surface to another surface by intense contact (Figure 1). Rubbing can occur under dry and wet conditions.
scrub your Rub Fastness Problems away - Sarex
Sarex
https://www.sarex.com › storage › app › uploads › public
Sarex
https://www.sarex.com › storage › app › uploads › public
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Web results
Best leather rubbing color fastness tester from UTS
UTS International Co., Ltd
https://www.utstesters.com › blog › best-leather-rubbin...
UTS International Co., Ltd
https://www.utstesters.com › blog › best-leather-rubbin...
Oct 25, 2019 — Glass plate size 8cm×5cm, smooth surface.The oven is conventional and can control the temperature (50±2).Leather rubbing color fastness tester: ...Read more
