Button Tension Test Procedures

A snap button is a pair of interlock discs made mainly by metal which is used as an alternative of a button. The main objectives of using a snap button in our cloth are given stylish look and fasten the wearing of cloth. Various types of snap button use in Garments. Snap machine pinch settings following snap manufacturer technical data sheet (recommendations), garments manufacturer check daily. Snap button pinch setting is very important for every apparel manufacturing industry because of setting snap button into cloth in a right process. Pinch setting is very sensitive and included in technical requirement checklist for every garments buyer. It is one of the safety issues of garments.

 

Pinch setting is checked by Digital Vernier Caliper Machine. Basic pinch is what two components of snap button measure when they come together without fabric between them. Compressed Foundation Thickness (CFT) is the minimum and maximum compressed fabric thickness where the snap will be located. These limits vary according to snap size and type. Setting pinch is the total height of attached snap fasteners on fabric as measured on the specified locations. (CFT) Compressed Foundation thickness can be measured by Torque Micro Meter. Snap button supplier data sheet can be collected by sending a mockup to the supplier, they will send data sheet after an experiment.

 

For setting Pinch following formula is used. It is a simple formula to use. Hope example of pinch setting will help you to understand easily.

Setting Pinch = Basic Pinch+ Compressed Foundation thickness (CFT)

 

Pull test of a snap button is required to check the setting pinch for two or three times daily as per customer required strength. For garments item, you need to use supplier dies and machines for ensuring perfect attachment.