Button pull tester setup and button production related knowledge

​Button Pull Tester can perform uniform and vertical tension tests on various clothing buttons to detect whether their firmness can meet current safety standards. The standard configuration of the button pull tester includes: tension base, push-pull force meter, two-claw clamp, three-claw clamp, tension clamp, bottom fabric clamp and weights. \'calibration.

Install the fixture, match the test buttons and lock the test sample to the base; Place the fixture, firmly grasp the knobs and pull them upwards. Each set of knobs must be capable of withstanding at least 17 pounds of pulling force (or 7.72 kg) and must hold for 10 seconds without any signs of loosening or damage. A minimum of 20 buttons of each style must be tested at one time to be considered qualified; if one of the buttons is looseed or damaged, or if all buttons need to be tested again after replacement.

Among the buttons we use daily, the materials can be roughly divided into three types: plastic (resin, plastic), metal buttons (copper, iron, alloy) and natural (shell, wood, walnut). coconut, bamboo). Each different material requires different processes to be made into buttons. However, once some buttons are processed and formed, it is difficult to judge the material from appearance alone. How to distinguish these different button materials in actual use?

Among plastic buttons, they are divided into plastic buttons and resin buttons. Among them, plastic buttons are generally made by die-casting, so there is a line on the edge of the button. This line is also called the mold closing line. In order to affect the appearance during milkingHowever, some factories will remove this line during processing. In comparison, it also weighs a little less than resin. The resin is mainly machine carved and then polished, so the surface leaves no marks and is relatively smooth. However, resin buttons will break easily and soften when placed in boiling water.r.

As for metal buttons, they are divided into three types: copper buttons, iron buttons and alloy buttons. It is relatively simple to distinguish copper buttons from iron buttons, just try with a magnet. Another method is to use a hard object to scrape the electroplating layer on the surface. The inside of the copper knob will appear brass, while the iron knob will appear black. Since alloy buttons are made by die-casting and are solid inside, they have e-casting linest are heavier. They are basically ground and polished during casting.

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