Problems and solutions of melt blown cloth becoming hard and brittleMany friends of meltblown fabric manufacturers may have encountered this problem: the meltblown fabric is brittle and hard overnight after production. Should Poe be used to toughen or softener to solve this problem? How to quickly and effectively solve the problem of melt blown cloth becoming hard and brittle is to use Zhejiang Dajin New Material Co., Ltd.
The brittleness in the production process of melt blown fabric may be as follows:
1. The melt index of pp1500 melt blown material is higher or lower. If the melting finger is too high, the material has little strength. If the melt finger is too low, PP will be denatured and no longer PP.
2. If the material is melted and blown, the material will melt and melt in short time, which will make the material brittle.
The causes of melt blown fabric embrittlement after production may be as follows:
1. If the long diameter of spinneret is relatively small and the hole is thick and short, the fiber ejected from polymer is thick, the gap is large, the time is long, and the water absorption is more, which directly leads to the melt blown cloth becoming brittle.
2. If the winding device is too short, waste heat will be generated in the winding process. In addition, if there is no rapid cooling down, PP material will be brittle after crystallization.
3. If the packaging is not a sealing tape winding film, then the cloth in the subsequent absorption of more moisture, it will become brittle.
Kwangju meltblown fabric, Korea,한국 광주 용출 직물
In view of this phenomenon, we concentrated on tackling key problems and launched a20546rp / RS, a special toughening and anti embrittlement masterbatch for meltblown cloth. The anti embrittlement masterbatch has the characteristics of low odor, high fat dissolving, good toughening effect and high elongation at break. It has good compatibility with melt blown PP, and the addition ratio depends on the situation. It can effectively solve the problems of brittleness and hardening of melt blown cloth, make the surface of melt blown cloth more smooth and flexible, and improve the tensile strength and tear strength.