刘晓庆门照艳全集|免费看美女直播软件|精东传媒VS天美传媒在线|双腿打开点就可以吃到扇贝了视频|欧美va电影|欧美手机在线观看|国产午夜精品

What is the impact of continuous environmental upgrading on polypropylene BCF yarn?

As we all know, East China is the main production area of non-woven fabrics and chemical fiber, including varieties of trampoline, webbing, polypropylene filament, polypropylene BCF yarn, eucalyptus and composite short fiber. The production process of these products is the environmental protection inspection team. The focus of the review object.

Polypropylene BCF yarn process:

1. One-step method: continuous spinning, stretching, deformation, winding process

2, two-step method: spinning and drawing combined → wire deformation or spinning winding → wire drawing deformation

3, three-step method: spinning doffing → wire drawing → deformation

Polypropylene BCF yarn is a relatively environmentally friendly chemical fiber with few production steps, so even if the environmental protection continues to upgrade, the impact on polypropylene BCF yarn is negligible.