How To Test The Strength Of Zipper？--Introduce 6 Testing Methods

2021-07-30

6 Methods

Zippers varying in specifications and types require different strengths suitable for different purposes.

The methods of testing zipper strength are not limited, but the basic strength is usually determined by following inspection methods.

1. Flat pull strong test

The flat tensile strength is the most basic strength indicator. It is used to test the ability of the zipper teeth to resist the lateral force in the interlocked state, which is very similar to the actual state of use.

2. Top stop holding strength

The zipper chain teeth are interlocked, and the slider is pulled to the upper end stop, and the pull head is pulled. At this time, the strength of the top stop of the zipper can be measured. This is a simulation of the zipper in the holding state, the slider crosses the top stop and pulls off. The ability of the top stop to resist external forces when moving from the ribs.

3. Bottom stop Holding Strength

Pull down the slider to the bottom stop and fix the two sides of zipper by gripper. Measure bottom stop holding strength and resistance of the internal components of the slider.

4. Open tail flat pull strong test

Test the resistance of the open-end zipper insert tube and socket against external force damage. Fix the left and right sides of the open end with the upper and lower clamps. When the zipper is closed, start the machine.

5. Strong test of slider lock

The slider is self-locking in the middle of the connecting teeth. The zipper teeth are divided into left and right parts. Stretching the left and right parts of the zipper can test the locking strength and resistance of the internal components of the slider.

6.Crosswise Strength of Separating Unit

The zipper is locked and the two sides of zipper separating unit are fixed by the tester gripper. Stretch the two sides of zipper separating unit to test its resistance to external force damage

GESTER is professionally engaged in Testing Equipment with 20+ years experience, insists on the use of high-quality materials and advanced technology to manufacture textile testing instruments. Gester’s zipper tester can test zippers well.

GESTER

A. Zipper Rotation Test Machine GT-C39B

Zipper Testing Machine is used to do a variety of zipper reciprocating tests, by testing in a continuous back and forth action. The ultimate aim is to test the zipper to create a distance between joints, loose or connector failure, fluff, wear, etc.

B. Slide Fasteners Reciprocating Tester Zipper Testing Machine GT-C39A

C. ASTM D2256 Single Yarn Strength Tester GT-A02A

Electronic Single Yarn Strength Tester is used to test the breaking strength and elongation percentage of various cotton, wool, linen, silk, chemical fiber, core-spun single yarn, pure or blending natural or chemical fiber yarns.