Gakushin Tester JIS L0849

This Gakushin Type Rubbing Tester is a standard testing machine of the Type II rubbing tester (GAKUSIN TYPE) specified in JIS L0849 Test Method of Rubbing Fastness in JIS Textile-Tests For Color Fastness. It is applied to determine the color resistance of dyed or printed textiles to rubbing thus providing evidence for textile products R&D and acceptance inspection.

It is reported that this tester is stricter than the ordinary horizontal reciprocation rubbing color fastness tester whose evaluating results are worse with the same specimen tests. Textiles exported to Japan should present test results by this device. 50mm rub heads and auxiliary weights are equipped for cardboard rubbing resistance tests.

Gakushin Tester Features

1. By changing optional accessories, it is versatile for a variety of specimens tests such as flocking resistance test for flocking, color fastness for artificial leather, rubbing resistance for cardboard, fastness for printing ink and coating, etc.; horizontal reciprocation rubbing color fastness test can be carried out by changing the test bed.

2. Test cycles can be set (electronic), automatic counting; start buzzing after counting finished.

Optional parts

238D1: Planar rub heads

238D2: Planar test bed

238D3: R50mm rub test (JIS P8136)

238D4: R1.5mm rub test(JIS P8136-flocking strength)

SZ320: #320abrasive paper

ZS: Grey scale (staining)-ISO/BS standard

23807: Grey scale (staining)-AATCC standard

FAQ

(1)What is a Gakushin Tester used for?

A Gakushin Tester is used to evaluate the abrasion resistance of printed surfaces, coatings, labels, and decorative finishes. It simulates repeated rubbing to check whether surface materials maintain their appearance and adhesion.

(2)What materials can be tested with a Gakushin Abrasion Tester?

It is commonly used for printed packaging, electronic panels, plastic housings, coatings, labels, leather products, and decorative surfaces where wear resistance needs to be evaluated.

(3)What factors affect Gakushin abrasion test results?

Important factors include test load, rubbing material, stroke length, rubbing speed, number of cycles, and specimen surface condition. Consistent test conditions are required for repeatable results.

(4)Which industries commonly use Gakushin testing?

Gakushin testing is widely used in printing, electronics, packaging, automotive interior, coating, and consumer product industries for evaluating surface durability.

(5)How to choose a suitable Gakushin Tester?

Selection should consider rubbing load range, stroke control, cycle setting, fixture design, test standard requirements, and compatibility with the materials being evaluated.