Meltblown non-woven fabrics are used as medical and sanitary fabrics, and are mainly used to manufacture protective clothing,

surgical gowns, masks, diapers, sterilization wraps, sanitary napkins and other products. The main raw material for the production

of meltblown fabrics is polypropylene meltblown materials. Choosing a good melt-blown material has a great influence on

improving the yield and quality of melt-blown fabrics. Today, Qingdao Sainuo editors take you to understand the selection method

of melt blowing material.

1. Melt flow index(MFI)

First consider the melt flow index. The improvement of polypropylene MFI can reduce the working temperature of the screw

extruder, increase the melt flow rate, help reduce the formation of excessively degraded polymers, extend the life of the melt blown

die head, and reduce energy consumption. Generally, melt-blown material with a melt index of 1500 ± 100g / min is selected, and

the melt viscosity is lower, which is more suitable for the weak drafting effect of the melt-blown processThe molecular weight

distribution.

2. The molecular weight distribution of the polypropylene melt-blown material is an important factor affecting the performance of

the melt-blown process and the melt-blown nonwoven fabric. For the meltblown process, it is generally believed that the low

molecular weight and narrow molecular weight distribution of the polymer raw materials are beneficial to the uniformity of the

meltblown web.

3. Ash content of melt-blown material

The ash content needs to be determined with the manufacturer. The diameter of the spinneret hole of the die used in the melt-

blowing process is small. If the ash content of the melt-blown material is too large and the impurities are too large, the spinneret

hole is easily blocked. Choosing a low-ash melt-blown material can effectively extend the melt-blown die head replacement cycle,

reduce energy consumption, and reduce product production costs.

Qingdao Sainuo polypropylene melt-blown special materials

The batch of polypropylene melt-blown special materials produced by Sainuo is stable, with a melt index of 1500 ± 100, narrow

molecular weight distribution, small ash content, and low odor. It can effectively improve the output and quality of meltblown

fabrics. For more than ten years, Sainuo has been focusing on production research and development. Upgraded special melt-blown

special materials are now available without any additional additives. The melt-blown fabrics production line with a height of more

than 1.2 meters has a filtration efficiency of 95 to 99%.

Qingdao Sainuo Chemical Co.,Ltd.  We are manufacturer for PE wax, PP wax, OPE wax, EVA wax, PEMA, EBS, Zinc / Calcium

Stearate…… Our products have passed the REACH, ROHS,PAHS, FDA testing.

Sainuo rest assured wax, welcome your inquiry

Website：https://www.sanowax.com

E-mail：sales@qdsainuo.com

               sales1@qdsainuo.com

Adress：Room 2702,Block B, Suning Building, Jingkou Road, Licang District, Qingdao, China