BUNDASMAN TESTER
The Bundasman type apparatus is used for determination of water repellency, resistance to wetting (in term of water absorb) and resistance to penetration (in term of water penetrated) of fabric.
It is made of four specimen holders which hold four specimens of the fabrics under test the specimen holders are rotate at the fixed RPM by means of a worm reduction gear box and an electric motor.
Chat on WhatsApp
Description
Bundasman Tester
The Bundasman Tester is used for determining the water repellency, resistance to wetting and resistance to water penetration of fabrics. The apparatus provides a controlled testing arrangement in which water is applied to fabric specimens while the specimens are held and rotated at a specified speed.
The GTX-BN1 Bundasman Tester is provided with four specimen holders for holding four fabric specimens during testing. The specimen holders are rotated by an electric motor through a worm reduction gear box at the specified rotational speed.
Working Principle of Bundasman Tester
The fabric specimens are placed in the specimen holders provided with the apparatus. The holders rotate at a fixed speed while water is delivered through the mounted jets at a controlled flow rate.
The water falling onto the fabric specimens allows the tester to evaluate the fabric’s response to water exposure. The test can be used to determine:
- Water repellency
- Resistance to wetting
- Water absorption in terms of water absorbed
- Resistance to water penetration
- Water penetration in terms of water penetrated
The controlled rotation of the specimen holders and specified water flow help maintain the test conditions during evaluation.
| Specification | Details |
|---|---|
| Model No. | GTX-BN1 |
| Number of Jets Mounted | 304 |
| Center to Center Distance of Jets | 20 mm |
| Rate of Flow of Water | 65 ± 3 ml/min/cup |
| RPM of Sample Holder | 5 ± 1 rev/min |
| Angle Between Horizontal and Plane of Sample | 10° – 15° |
Construction and Operation
The apparatus consists of four specimen holders designed to hold the fabric specimens under test. The specimen holders are connected to a rotating mechanism operated through a worm reduction gear box and electric motor.
Water is supplied through the mounted jets at a specified flow rate. The jets are arranged with a 20 mm center-to-center distance, providing the required water distribution over the test specimens.
The angle between the horizontal and the plane of the sample is maintained between 10° and 15°, according to the provided technical specification.
Applications of Bundasman Tester
The Bundasman type apparatus is used for fabric testing applications involving water exposure and wetting characteristics. It can be used in textile laboratories and quality-control applications where the water repellency and water penetration behaviour of fabrics need to be evaluated.
Key Features of Bundasman Tester
- Four specimen holders for fabric testing.
- 304 jets mounted in the apparatus.
- Controlled water flow of 65 ± 3 ml/min/cup.
- Sample holder rotation of 5 ± 1 rev/min.
- Jet center-to-center distance of 20 mm.
- Sample angle adjustable/specification of 10°–15°.
- Worm reduction gear box driven by an electric motor.
- Designed for evaluating fabric water repellency and water penetration characteristics.
For more textile laboratory testing solutions, explore our Fabric Testing Equipment range.
https://globetexindustries.com/product-category/fabric-testing-equipments/
Frequently Asked Questions
What is a Bundasman Tester used for?
It is used to determine the water repellency, resistance to wetting and resistance to water penetration of fabrics.
How many fabric specimens can be tested at a time?
The apparatus is provided with four specimen holders, allowing four fabric specimens to be held during the test.
How many jets are mounted on the apparatus?
The specified model has 304 jets mounted.
What is the water flow rate?
The specified rate of water flow is 65 ± 3 ml/min/cup.
What is the rotation speed of the sample holder?
The sample holder rotates at 5 ± 1 rev/min.
What is the angle of the fabric specimen?
The angle between the horizontal and the plane of the sample is specified as 10°–15°.
How are the specimen holders rotated?
The specimen holders are rotated using a worm reduction gear box and electric motor.
What type of materials can be tested?
The apparatus is intended for testing fabric specimens for water repellency, wetting and water penetration characteristics.
What is the model number?
The model number is GTX-BN1.
