What are the Standards for PET coated wire

2024.09.12

Author：PET coated wire

The standards for PET coated wire involve multiple aspects, mainly including material selection, coating process, quality control, and safety and environmental protection requirements. The following is a detailed explanation of these standards:

1、 Material selection

Substrate: PET (polyethylene terephthalate) film, as the substrate, needs to have good mechanical properties, heat resistance, and chemical stability.

Coating material: Select appropriate coating materials based on application requirements, such as water-based cationic polymers, to meet specific performance requirements such as adhesion, wear resistance, and scratch resistance.

2、 Coating process

Coating method: common coating methods include scraper coating, roller coating, spray coating, etc., and appropriate coating method shall be selected according to coating materials and product requirements.

Drying process: Control the drying temperature and time to ensure that the solvent in the coating evaporates fully, while avoiding the impact of high temperature on the coating performance. The drying method can be selected from hot air drying, infrared drying, UV drying, etc., depending on the coating characteristics and production conditions.

Coating thickness: Accurately control the coating thickness to ensure uniformity and consistency of the coating. The control of coating thickness involves multiple aspects such as viscosity, coating speed, and liquid supply of the coating liquid.

3、 Quality control

Coating uniformity: Coating uniformity is one of the important indicators for evaluating the quality of coated products, which directly affects the performance and appearance of the product. By adjusting various parameters of the coating machine, such as coating gap, coating speed, and liquid supply pressure, effective control of coating uniformity can be achieved.

Coating adhesion: The adhesion between the coating and the substrate is a key indicator for evaluating the quality of coated products. By optimizing the coating liquid formula, substrate surface treatment method, and coating process parameters, the adhesion of the coating can be improved.

Coating performance testing: Use testing instruments to test the thickness, hardness, adhesion, wear resistance, scratch resistance, and other properties of the coating to ensure that it meets quality requirements.

4、 Safety and Environmental Protection

Environmental requirements: Coating materials should comply with environmental standards such as ROHS to ensure that the product does not cause pollution to the environment during use.

Safety production: During the coating process, it is necessary to strictly comply with safety production regulations, ensure the safety of production equipment and operating environment, and prevent safety accidents such as fires and explosions.

5、 Specific standard examples

Double 85 requirement: In certain applications of optical materials, PET coatings need to meet the Double 85 (temperature of 85 ℃ and humidity of 85%) requirement, and the testing time may be several hundred hours. This requires the coating to have excellent temperature and moisture resistance, as well as long-lasting adhesion.

Optical performance: For optical grade PET coatings, their optical properties such as transparency and haze also need to be considered. Transparency needs to be above 92%, and haze needs to be controlled below 3%.

Qingdao Chenan Machinery Co., Ltd. has the advantage of developing and producing rubber winding equipment, with higher technology than various equipment assembly manufacturers in the industry. For more information about PET coated wire, please contact us.

Company: Qingdao Chenan Machinery Co., Ltd.

Address: Yanjialing Industrial Park, East Chengma Road, Tongji New Economic Zone, Jimo District, Qingdao City, Shandong Province

Email: qdcajx@gmail.com