PP ribbon The wide application of pp leads to higher requirements for pp webbing. The following small knitting will introduce the process characteristics and methods of PP ribbon cutting:
The traditional PP ribbon shearing is based on the principle of cold shearing and hot shearing. The shearing effect includes burrs, loose edges, uneven cuts or yellowing and scorching. In order to improve this situation, we can use the ultrasonic principle to cut the webbing, which can achieve full automatic cutting, ultrasonic sealing, no yellowing and scorching, and achieve the ideal effect.
There are two methods for cutting PP webbing, one is manual cutting, the other is machine cutting. The automatic belt cutter is used for cutting. The belt cutter is divided into hot belt cutter, cold belt cutter and ultrasonic belt cutter. Generally, heating wire cutting or chopper cutting is used manually. These two belt cutting processes have low equipment input but high labor costs. In addition, heating wire cutting will produce a lot of smoke; In addition, scorching marks will be left on the cutting surface of the ribbon. Although there is no trace of smoke and charring when cutting with a chopper. However, if the seal is not effective, it will be loose.
