FIBRESTRESS

Product catalog summary

Overview: The document describes the FIBRESTRESS equipment designed for testing the bending-abrasion and cyclic stress of fibres and yarns. It provides insights into the equipment's functionality, applications, and technical specifications.

1. Bending-Abrasion Test:

This test involves cycling a fibre sample back and forth over a wire or pin under tension and a defined angle (e.g., 90°). The number of cycles until fibre breakage is recorded.
For apparel textiles, a lower cycle number indicates a lower tendency to pilling, as pills are shed quickly.
Carpet fibres require high resistance to bending stresses to avoid premature breakage.
The test is also applicable to staple fibre yarns and can provide insights into processing properties, such as with flax fibres.
In hair care, the test can assess the impact of treatment media on hair characteristics like elasticity or brittleness.

2. Cyclic Stress Test:

This test subjects fibres or yarns to alternating tension and relaxation, measuring the number of cycles until breakage.
It provides valuable information on fibre or yarn properties during processing and performance characteristics.

3. Equipment Types:

FIBRESTRESS Type F: Designed for fibres with a linear density of 0.3 – 20 dtex. It features a clamping strip for testing 25 fibres simultaneously.
FIBRESTRESS Type C: Suitable for fibres with a high linear density and yarn segments of 3 – 300 dtex. It can perform both bending-abrasion and cyclic stress tests.
FIBRESTRESS Type C/H: Similar to Type C but adapted for testing human hair, allowing for treatment with liquid media before testing.

4. Technical Specifications:

Sample holder: Clamping strip with 25 positions, capable of horizontal or vertical movement.
Cycle frequency: 0 – 4 Hz (0 – 240 strokes per minute).
Wrap element: Wire diameter 0.02 – 0.5 mm, adjustable bending angle (90° or 110°).
Tensioning weights: 70 mg – 10 g (Type F), 6 g – 70 g (Type C, C/H).
Test control: PC system for process control and data evaluation.

5. Manufacturer Information:

Textechno Herbert Stein GmbH & Co. KG, located in Mönchengladbach, Germany.
Contact: Tel +49 (0)2161 6599-0, Fax +49 (0)2161 6599-10, Email: [email protected], Website: www.textechno.com

Catalog excerpts

FIBRESTRESS Bending-Abrasion and Cyclic Stress Tester for Fibres and Yarns

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Bending-Abrasion and Cyclic Stress Tester for Fibres and Yarns FIBRESTRESS During the fibre bending-abrasion test, the Finally, in the area of hair care products, conclu- fibre sample is cycled back and forth over a wire or sions can be drawn regarding the influence of the thin pin under given tension and defined angle, treatment media concerning hair characteristics, e.g. 90°. In this test, the number of cycles up to such as elasticity or brittleness, by subjecting the fibre breakage is the measured variable. Concern- treated human hair to the bending-abrasion test ing fibres for apparel textiles,...

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FIBRESTRESS Type F This equipment has been designed for bending- The clamp cycles in a horizontal direction, pulling abrasion tests on fibres with a linear density the fibre backwards and forwards over the wire. within the range of 0.3 – 20 dtex. For the test, A sensor registers the occurrence of fibre break- one of the fibre ends is held by a clamp and the age, and the appropriate cycle number count up other end loaded with a pre-tensioning weight. The to that moment is recorded. The equipment fibre is bent at a 90° or 110° angle around a wire, features a clamping strip with 25 positions for...

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FIBRESTRESS Type C This equipment uses an identical method as the 1 Type F for bending-abrasion tests on fibres with a high linear density and yarn segments within the range of 3 – 300 dtex. Due to the higher sample count, the equipment has heavier pre-tensioning 3 weights that are guided within vertical channels. If necessary, the weights can be secured against any tendency to self-twist. In addition to the bending-abrasion test, the FIBRESTRESS Type C can also be used to carry out cyclic stress tests. Here, the reciprocating The instrument counts the number of cycles until the fibre breaks...

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Technical data Sample holder: Wrap element for the bending-abrasion test: Clamping strip with 25 positions, reciprocating movement, either horizontal or vertical plane other diameters on request. (only Type C and C/ H). Bending angle for the bending-abrasion test: Cycle frequency of clamping strip movement: other angles on request. Tensioning weights: 70 mg – 10 g (Type F), 6 g – 70 g (Type C, C/ H), other weights on request. TESTCONTROL: PC system for controlling the test process and for the evaluation of the measured data, connected via serial interface. Further technical data Dimensions, weight...

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textile testing technology TEXTECHNO Herbert Stein GmbH & Co. KG Dohrweg 65 D-41066 Monchengladbach Germany Tel +49 (0)2161 6599-0 Fax +49 (0)2161 6599-10 [email protected] www.textechno.com

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FIBRESTRESS

FIBRESTRESS

Catalog excerpts

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