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Other tests - Leather wear resistance test

Leather abrasion resistance test is a testing method used to evaluate the durability and wear resistance of leather materials under friction. By simulating the friction conditions in actual use, detect whether the leather surface is prone to wear, peeling or damage, and evaluate its quality and applicability.

 

Purpose of Leather Wear Test

Evaluate durability:

Test the wear resistance of leather during long-term use.

Quality Control:

As an important testing item in the production process of leather products such as shoes, bags, sofas, etc., to ensure that the products meet quality standards.

Material selection:

Assist manufacturers in selecting leather materials suitable for specific purposes.

The principle of leather abrasion resistance test

Apply a certain amount of pressure and friction frequency to the leather surface through a friction device to simulate the wear situation in actual use. After testing, observe the degree of wear on the leather surface and evaluate its wear resistance.

 

Common Leather Wear Resistance Testing Methods

Martindale Method:

This is the most commonly used leather abrasion testing method, applicable to various leather materials.

Testing principle: Fix the leather sample on the tester, rub it with standard abrasive under a certain pressure, and record the number of times the sample is worn or damaged.

Testing standards: such as ISO 12947, ASTM D4966, etc.

Taber Abrasion Test:

Suitable for thicker leather materials such as shoe soles, belts, etc.

Test principle: Use a rotating grinding wheel to rub against the leather surface and record the amount of wear or number of frictions.

Testing standards: such as ASTM D3884, ISO 5470, etc.

Reciprocating friction method (reciprocating wear resistance test):

Suitable for simulating reciprocating friction situations in actual use, such as sofas, car seats, etc.

Testing principle: Friction is applied to the leather surface through a reciprocating friction head, and the wear condition is recorded.

Testing standards: such as GB/T 21196, ISO 5470, etc.

 

Steps for Leather Wear Test

Sample preparation:

Cut a sample of a specified size (usually circular or square) from leather material.

Ensure that the sample surface is clean and free of defects.

Installation sample:

Fix the sample on the sample stage of the tester, ensuring it is flat and wrinkle free.

Choose abrasive and pressure:

Select appropriate abrasives (such as wool felt, sandpaper, etc.) and applied pressure according to testing standards.

Start testing:

Start the tester and conduct the test according to the specified friction frequency or time.

Observation and recording:

After the test is completed, observe the wear on the surface of the sample and record the degree of wear or friction frequency.

Result evaluation:

Evaluate the wear resistance of samples according to testing standards, usually expressed in terms of wear amount, friction frequency, or visual rating.

 

Parameters for Leather Wear Resistance Testing

Friction frequency:

The total number of times friction occurs during testing, usually measured in thousands.

Apply pressure:

The pressure applied to the sample during testing is usually measured in kPa or N.

Abrasive type:

Choose materials such as wool felt, sandpaper, fabric, etc. according to testing standards.

Wear amount:

The reduction in weight or change in thickness of the sample after testing.

 

Application of Leather Wear Resistance Testing

Footwear:

Test the wear resistance of the shoe upper and sole to ensure the durability of the shoes.

luggage and bags:

Evaluate the wear resistance of luggage materials and improve the product's service life.

furniture

Test the wear resistance of leather used for furniture such as sofas and seats to ensure their suitability for long-term use.

Automotive interior:

Evaluate the durability of leather materials such as car seats and steering wheels.

Clothing:

Test the wear resistance of leather clothing to ensure its suitability for daily wear.

 

Instrument for Leather Wear Resistance Testing

Common leather abrasion testing instruments include:

Martindale Wear Tester:

Suitable for Martindale method testing, multiple samples can be tested simultaneously.

Taber Wear Tester:

Suitable for Taber method testing, equipped with a rotating grinding wheel and pressure control system.

Reciprocating Wear Tester:

Suitable for reciprocating friction testing, simulating reciprocating friction in actual use.

 

Precautions for Leather Wear Test

Sample selection:

The sample should be representative and avoid selecting areas with defects or unevenness.

Test conditions:

The testing environment should maintain a constant temperature and humidity to avoid affecting the test results.

Abrasive selection:

Select appropriate abrasives according to testing standards to ensure comparability of test results.

Result evaluation:

Adopt unified evaluation criteria to avoid subjective judgments affecting the results.

 

summary

Leather abrasion resistance testing is an important method for evaluating the durability and wear resistance of leather materials. By simulating the friction conditions in actual use, the wear condition of the leather surface is detected. It has a wide range of applications in the fields of footwear, luggage, furniture, and automotive interiors, and is a key testing item to ensure product quality and performance.

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