When using PP yarn, the following aspects need to be paid attention to to ensure its stable performance, safe use, and extend its service life:

1. Storage environment

Temperature and humidity: PP yarn should be stored in a cool, dry, ventilated place, avoid direct sunlight and high temperature. It is recommended that the storage temperature be controlled at 10-30 ° C and the humidity be controlled at 50%-75%.

Packaging seal:PP yarn should always be placed under the packaging seal before use to prevent moisture or contamination.

2. Safe use

Personal protection: When handling PP yarn, it is recommended to wear protective equipment such as gloves and masks to avoid direct contact with the skin or inhalation of dust that may be generated.

Operating environment: Ensure that the operating environment is dry, dust-free and pollution-free, and avoid using PP yarn in wet or harsh environments, so as not to affect its performance and service life.

Third, processing

Spinning process: PP yarn is mainly produced by melt spinning process. During spinning process, the diameter of spinneret, extrusion speed, drawing multiple and other parameters will affect the quality and performance of PP yarn. For non-professionals, there is no need to pay attention to this step, but it is important to understand that PP yarn produced by different processes may have different performance characteristics.

Dyeing and post-treatment: PP yarn itself is difficult to dye, but it can be dyed by special methods such as carrier dyeing, high temperature and high pressure dyeing. In addition, in order to improve some properties of PP yarn, post-treatment such as antistatic treatment and antibacterial treatment can also be carried out. For users, it is necessary to pay attention to whether the purchased PP yarn has gone through the necessary post-processing to meet the specific needs of use.

Fourth, shrinkage problem

Shrinkage phenomenon: PP yarn (polypropylene yarn) due to the molecular structure of polypropylene, there is shrinkage phenomenon. The level of textile technology of different manufacturers is different, resulting in different shrinkage rates. International standards stipulate that boiling water shrinkage between 1% and 3% belongs to the normal range.

Note: When using PP yarn to make products, it is necessary to take into account the shrinkage problem and reserve an appropriate size margin to ensure that the size of the final product meets the requirements.