Perfect detection mechanism, equipped with advanced detection equipment, make the quality more stable!
For a full zip closure. When a force is applied to the zipper sheet and the zipper button part below it, the tension resistance of the zipper button can be measured. In addition to the 90° measurement method shown in the figure on the right, another method is the 45° measurement method.
Fix the bottom end of the zipper, pull the pull button to the top of the zipper, and measure the amount of tension resistance by applying force to the pull button on the top stop of the zipper.
The lower end opening part of the zipper is fixed to the tensile tester (only the lower end opening part as shown in the figure), so that the first zipper tooth at the lower end of the zipper is on a horizontal line with the edge of the clamp, so that its resistance can be measured tension.
Pull the zipper, use the vertical angle of the zipper direction and the force of the fixed speed to act on the zipper to measure the tensile strength.
Pull the zipper to the bottom of the zipper, and two flat chains, one left and one right, can measure the bottom end tension.
The zipper buckle is locked in the middle of the zipper, and the two single zippers that are not engaged are one left and one right, and the zipper strength and zipper resistance can be tested.
Generally, the setting of the machine is detected in 2 hours. Due to the inconsistent setting of various machine parameters, the temperature, pressure, speed, cooling and other aspects of the machine are generally checked to ensure that all the indicators can reach the normal range value, so as to ensure that the product quality of the zipper meets the corresponding standard requirements.
In the process of mass production, visual inspection is continuous, as long as in the production process, workers are in a cycle of visual inspection.
The factory has its own internal laboratory, normal physical performance and washing performance test, the company can carry out comprehensive testing, the company has a professional zipper tester to sample the products of the company every day, usually the products produced by the factory twice a day. Other tests (such as heavy metals and other environmental tests) are generally sent to a third party (SGS, ITS, etc.) for testing, usually once a year under normal circumstances. In addition, if the customer has special requirements, the samples will be sent to a third party for testing according to the customer requirements.
Normally, every sales have samples and will keep for storage.
In general, our company has relatively strict control of color fastness. As long as the customer puts forward requirements for color fastness, our company has tested the outside and inside of the cylinder of each cylinder. In terms of environmental protection, our company takes samples once a year and sends them to a third party for testing.
During producing.zippers will appear natural tolerance.Base on the size of the zippers,the tolerance will be difference caused by the speeds of machinecooperation condition of craft work and tensility of the tape.
Tel : 0086 574 87894622
+86 15314551713
5F, Dongfang Building, No.456 Xingning Road, Yinzhou, Ningbo, 315040, China
