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Special attention must be paid to the design, production and processing of Melt-blown fabric

Special attention must be paid to the design, production and processing of Melt-blown fabric

(Summary description)Melt-blown fabric processing technology is to use high-speed hot air to draw the fine flow of polymer melt extruded from the die orifice, so as to produce ultra-fine fibers which are suspected to be aggregated on the drum, and the die is formed by bonding itself.

Special attention must be paid to the design, production and processing of Melt-blown fabric

(Summary description)Melt-blown fabric processing technology is to use high-speed hot air to draw the fine flow of polymer melt extruded from the die orifice, so as to produce ultra-fine fibers which are suspected to be aggregated on the drum, and the die is formed by bonding itself.

Information

Melt-blown fabric processing technology is to use high-speed hot air to draw the fine flow of polymer melt extruded from the die orifice, so as to produce ultra-fine fibers which are suspected to be aggregated on the drum, and the die is formed by bonding itself. It is the most important part of the meltblown device. The symmetry of the product is closely related to the mold, so the processing accuracy is high.

Melt-blown fabric

1. In the process of designing the mold, the gate design is very important. Runner Tibetan glue is an important problem that causes Melt-blown fabric to turn yellow and become brittle. Whether the mold gate can be smooth or not is related to the smooth production of the mold. The hanger-type gate is the main flow channel of the melt blown cloth mold;

2. The uniformity of the wind knife is also related to the uniformity of the Melt-blown fabric;

3. The assembly form between the mold plates determines whether the mold will have leaking glue;

4. In the process of manufacturing and processing, precision machining must be performed. In particular, the smoothness and flatness of the nozzle should be manufactured and processed in place;

5. Melt-blown fabric polypropylene material is different from PET material, the size of the nozzle must be moderate, without excessive pursuit of small round holes. The hole diameter is too small, it is very easy to block the mold.

Keyword:

How

How the Melt-blown fabric is constructed

The following paragraph of this article will introduce the related production process of Melt-blown fabric. The production process of Melt-blown fabric is mainly divided into three steps: melt extrusion, melt-blown process, and electret treatment. Specifically, Melt-blown fabric uses high-speed hot air flow to draw the extruded polymer melt through the spinneret holes of the die nozzle. From this, microfibers are formed and collected on a condensate screen or drum, and at the same time self-bond to become a Melt-blown fabric.
2023-03-23
Reasons

Reasons why Melt-blown fabric becomes brittle after production

1. If the aspect ratio of the spinneret of Melt-blown fabric is small, the holes are thick and short. After the polymer is sprayed, the fibers are thicker, the gaps are larger, and the water absorption is stronger for a long time , so the Melt-blown fabric is neither soft nor brittle.
2023-03-16
The

The features of BFE 99 masks

BFE in BFE 99 masks means bacterial filtration effect, which refers to the material's resistance to bacterial penetration. The reported results of BFE 99 masks are shown in percentage data, corresponding to the ability of the material to resist bacterial penetration. The higher the value, the better its filtration performance. 
2023-03-09
Chemical

Chemical absorbent pads manufacturers take you to understand absorbent pads

Chemical absorbent pads manufacturers tell you that as we all know, with the rapid development of the modern industrial chain, absorbent pads have been widely used in fresh vegetables and fruits. In the next paragraph of this article, chemical absorbent pads manufacturers will show you how the small absorbent pads are well known to everyone.
2023-03-02

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