Multilayer composite liquid filtering material

A filter material, multi-layer composite technology, applied in the direction of filtration separation, lamination, layered products, etc., can solve the problems of filtration efficiency and production environment impact, and achieve the effect of reducing the bonding contact area

Pending Publication Date: 2022-07-19
杭州诗蓝过滤科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to overcome the problem that the multi-layer material composite method in the prior art will affect the filtration efficiency of the liquid filter material and the production environment, and provides a multi-layer composite liquid filter material. Layers of non-woven materials are hot-pressed and composited to produce a liquid filter material with high porosity. The composite process is environmentally friendly and efficient, and will not have a great impact on the filtration efficiency of the material

Method used

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  • Multilayer composite liquid filtering material
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  • Multilayer composite liquid filtering material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A multi-layer composite filter material, the weight of 5 layers is 40g / m 2 , and the melt-blown non-woven fabric with a thickness of 0.2mm is composited by hot pressing with a pressing roller.

[0031] The pressing roller 1 is provided with bullet-shaped bumps evenly distributed along the roller surface, the diameter and height of the bumps are respectively 0.30mm, and the distance between adjacent bumps is 5mm. The temperature during hot-pressing compounding was 150°C and the pressure was 50MPa.

[0032] The preparation method of the melt-blown non-woven fabric is as follows: the homopolypropylene (purchased from Kingfa Technology, with a melt index of 1500g / 10min) is sent to a spinning assembly for spinning to obtain fiber filaments; Meltblown non-woven fabric.

Embodiment 2

[0034] A multi-layer composite filter material, the weight of 5 layers is 40g / m 2 , and the melt-blown non-woven fabric with a thickness of 0.2mm is composited by hot pressing with a pressing roller.

[0035] The pressing roller 1 is provided with bullet-shaped bumps evenly distributed along the roller surface, the diameter and height of the bumps are respectively 0.30mm, and the distance between adjacent bumps is 5mm. The temperature during hot-pressing compounding was 150°C and the pressure was 50MPa.

[0036] The preparation method of the melt-blown non-woven fabric is as follows: homopolymer polypropylene (purchased from Kingfa Technology, melt index 1500g / 10min) and hydrophilic masterbatch are mixed in a mass ratio of 90:10, then extruded and melted, and sent to a spinneret assembly for Spinning to obtain fiber filaments; the melt-blown non-woven fabric is obtained after the fiber filaments are formed into a net and wound.

[0037]Wherein, the components of the hydrophi...

Embodiment 3

[0039] A multi-layer composite filter material, the weight of 5 layers is 40g / m 2 , and the melt-blown non-woven fabric with a thickness of 0.1mm is composited by hot pressing with a pressing roller.

[0040] The pressing roller 1 is provided with bullet-shaped bumps evenly distributed along the roller surface, the diameter and height of the bumps are respectively 0.20mm, and the distance between adjacent bumps is 2mm. The temperature during hot pressing and compounding was 200°C.

[0041] The preparation method of the melt-blown non-woven fabric is as follows: the homopolypropylene (purchased from Kingfa Technology, melt index 1500g / 10min) and the hydrophilic masterbatch are mixed in a mass ratio of 95:5, then extruded and melted, and sent to a spinning assembly for Spinning to obtain fiber filaments; the melt-blown non-woven fabric is obtained after the fiber filaments are formed into a net and wound.

[0042] Wherein, the components of the hydrophilic master batch include...

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Abstract

The invention relates to the technical field of filter materials, and discloses a multi-layer composite liquid filter material which is formed by hot-pressing and compounding a plurality of layers of non-woven materials through a compression roller, and salient points are arranged on the roller surface of the compression roller; the salient points are bullet-shaped; the diameter and the height of each salient point are 0.20-0.50 mm, and the distance between every two adjacent salient points is 2-10 mm. According to the invention, a plurality of layers of non-woven materials are hot-pressed and compounded to prepare the liquid filtering material by adopting the compression roller with the convex points on the roller surface, the compounding process is environment-friendly and efficient, the bonding contact area between layers is reduced, and the filtering efficiency of the material is not greatly influenced.

Description

technical field [0001] The invention relates to the technical field of filter materials, in particular to a multi-layer composite liquid filter material. Background technique [0002] Liquid filtration uses the special structure of the filter medium to remove impurities in the liquid by being trapped on the surface or inside of the medium when the liquid flows through the pores in the medium. With the development of society and the continuous improvement of people's living standards, liquid filtration has been involved in all aspects of life such as water purifiers, swimming pool filtration, sewage treatment, etc. Its important role is self-evident, and the development of liquid filtration materials has also been widely used. focus on. Non-woven materials are mostly three-dimensional structures with small pores and tortuous pore size. When the liquid flows through the non-woven materials, the dispersion effect is strengthened, which increases the chance of the collision and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/08D04H1/4291D04H1/56D04H3/16D04H1/46B32B27/32B32B27/02B32B27/12B32B37/10B32B37/06B32B27/18
CPCB01D39/083D04H1/4291D04H1/56D04H3/16D04H1/46B32B5/022B32B5/26B32B37/06B32B37/10B01D2239/065B01D2239/1208B32B2250/20B32B2262/0253B32B2307/728
Inventor 李昌稳杨峰海张静
Owner 杭州诗蓝过滤科技有限公司
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