Melt-blown non-woven fabric electret adding device and adding method

A technology of melt-blown non-woven fabrics and adding devices, which is applied in the directions of melt-spinning, non-woven fabrics, textiles and papermaking, etc., can solve the problems of limited filtration efficiency improvement, downtime for maintenance, broken filaments, etc., and achieves good filtration performance stability. , The effect of maintaining lasting static electricity and improving production efficiency
CN111876902APending Publication Date: 2020-11-03ZHEJIANG CHENWEI ENVIRONMENTAL TECH CO LTD
0 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG CHENWEI ENVIRONMENTAL TECH CO LTD
Publication Date
2020-11-03

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a melt-blown non-woven fabric electret adding device and adding method. The melt-blown non-woven fabric electret adding device comprises a spinneret plate and a receiving device, wherein a melt channel is formed in the spinneret plate, a triangular block is arranged on the spinneret plate, the bottom edge of the triangular block is fixedly connected with the spinneret plate, and a spinneret hole is formed in the triangular block and communicates with the melt channel; air knives are arranged on the left side and the right side of the triangular block and distributed ina bilateral symmetry mode with the spinneret orifice as the center, a drafting airflow channel is formed between the top of each air knife and the spinneret plate, one side of each air knife is closeto the triangular block, an air outlet is formed in the side close to the triangular block, and the other side of each air knife is far away from the triangular block; an air gap is formed between oneside close to the triangular block, of each air knife and the side of the triangular block; and one end of the drafting airflow channel communicates with the spinneret orifice through the air gap, anaerosol generator and a hot airflow device are arranged at the other end of the drafting airflow channel, the receiving device is located under the spinneret orifice and the air knives, and the spinneret plate is located over the air knives. The spinneret plate has the beneficial effect that the spinneret hole cannot be blocked.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the related technical field of meltblown nonwoven fabrics, in particular to an electret adding device and method for meltblown nonwoven fabrics. Background technique

[0002] The melt-blown non-woven fabric is a polymer chip with a high melt index MFI, which is heated and melted by an extruder to become a fluid polymer high-temperature melt, and the melt is ejected from the spinneret hole to form a fine spinning stream. There are high-speed hot air flow on both sides to clamp the high-temperature melt stream, and form ultra-fine fiber form after traction and stretching. Gather into a network structure on the receiving device, and use the waste heat of the melt that has not been completely cooled to bond the fibers to each other into a non-woven form.

[0003] Ordinary melt-blown non-woven fabrics have relatively high air resistance. In order to reduce air resistance, the industry adopts electret modification. This kind of mel...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More