Strength test of artificial leather joints

The seam is the intersection line formed by the sewing stitches of artificial leather and synthetic leather. It can also generally refer to the seams of sewing lines, also known as sutures. The artificial leather seam strength test determines the seam strength of artificial leather.
Zhongke Testing Reliability Experiment Center has the capability of reliable performance testing of various artificial leathers and synthetic leathers, and provides professional seam strength testing services for artificial leathers.

1. Classification according to the synthetic resin used: polyvinyl chloride artificial leather, polyamide artificial leather, polyolefin artificial leather, polyurethane artificial leather.
2. Classified by base material: cotton cloth-based artificial leather, synthetic fiber-based artificial leather and fiber-based artificial leather.
3. Classification by production method: direct coating and scraping method artificial leather, transfer coating and scraping method artificial leather, calendering and laminating method artificial leather, extrusion laminating method artificial leather, rotary screen coating method artificial leather, wet method artificial leather.
4. Classification by use: Artificial leather can be divided into two categories: civil use and industrial use.
Civilian leather includes: leather for shoe covers, leather for clothes, leather for boxes, straw for bags, leather for handbags, leather for gloves and carts, straw for furniture, etc. Industrial leather includes: vehicle leather, floor leather, etc.

1. The sample should be conditioned in accordance with regulations at a temperature of (23±2)°C and a relative humidity of (50±10)% for no less than 24 hours, and the test should be conducted under these conditions.
2. While maintaining the load, use a vernier caliper to measure the diameter of all pinholes in each group of seams within 10 minutes, and record all measurement values. If necessary, you can use a magnifying glass to observe and measure the sample test results, and observe changes in pinholes.

QB/T 4872-2015 Test method for artificial leather and synthetic leather Determination of seam strength
GB/T 2918-1998 Plastics Standard environment for specimen condition adjustment and testing
GB/T 4515-2008 Classification and terminology of stitches
GB/T 6836-2007 Sewing thread
QB/T 2034.1-2005 Sewing machine terminology Part 1: Basic terminology
QB/T 2035-1994 Sewing machine needle model compilation rules