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Composite non-woven fabric for filtering dust and manufacturing process thereof

A manufacturing process and technology of non-woven fabrics, applied in the field of composite non-woven fabrics and its manufacturing process, can solve the problems that the precision and air permeability of non-woven fabrics cannot be satisfied at the same time, achieve excellent dust filtration performance, guarantee service life, and improve filtration performance effect

Pending Publication Date: 2018-05-15
ZHEJIANG YUBANG FILTER MATERIAL TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problem that the existing non-woven fabric cannot satisfy the accuracy and air permeability when filtering dust, and to provide a composite non-woven fabric for dust filtering and its manufacturing process

Method used

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
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  • Composite non-woven fabric for filtering dust and manufacturing process thereof
  • Composite non-woven fabric for filtering dust and manufacturing process thereof
  • Composite non-woven fabric for filtering dust and manufacturing process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] In the present embodiment, the composite non-woven fabric manufacturing process is as follows:

[0053] 1. The polyester fiber with a fineness of 1.7dtx and a length of 38mm enters the cotton feeding machine after being loosened and weighed. The cotton feeding machine is adjusted to 2500 grams per minute according to the required gram weight. The carding machine combs the fed fiber into Gram weight is 50g / m 2 Cotton net, then superimposed into 500g / m by net lapper 2 The cotton net layer with a width of 2.5 meters enters the needle punching machine, and after 8 passes of needle punching at a speed of 5m / min, it is made into a needle punched non-woven fabric and enters the laminating machine.

[0054] 2. Dilute the polyester fiber with a fineness of 0.3dtx and a length of 4mm with water to a mixed solution with a concentration of 3%, and send the mixed solution to the fourdrinier former with a metering pump, and the feeding amount is 150g / min, and the fourdrinier former ...

Embodiment 2

[0067] In the present embodiment, the composite non-woven fabric manufacturing process is as follows:

[0068] 1. The polyester fiber with a fineness of 2.2dtx and a length of 42mm is fed into the cotton feeding machine after being loosened and weighed. The cotton feeding machine is adjusted to 4500g per minute according to the weight of the product. The carding machine combs the fed fiber into a grammage of 30g / m 2 Cotton net, laid into 300g / m by net lapper 2 The cotton net layer with a width of 2.5 meters is sent to the needle loom. After 10 passes at a speed of 10M / min, it is made into a needle-punched non-woven fabric and then enters the laminating machine.

[0069] 2. After the aramid fibers with a fineness of 1.0dtx and a length of 3mm are dispersed by water, they are made into a mixed solution with a concentration of 2%, and the mixed solution is sent to the inclined wire former with a metering pump at a concentration of 3%. The feed rate is 400g / min, the speed of th...

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
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Abstract

The invention discloses a composite non-woven fabric for filtering dust and a manufacturing process thereof, which belong to the field of non-woven fabric weaving. A needle punched non-woven fabric base layer is formed on the bottom part of the composite non-woven fabric; a layer of chopped fiber is densely distributed above the needle punched non-woven fabric base layer, is partially embedded into the needle punched non-woven fabric base layer and fills in needle punched holes on the needle punched non-woven fabric, so that a layer of composite layer is formed on an upper surface of the needle punched non-woven fabric base layer. According to the composite material provided by the invention, not only can the filter precision requirement meeting 99.99 percent (up to 99.999 percent) be ensured, but also the permeation volume, the dust holding capacity and the service life are well ensured, the energy consumption during use is greatly reduced, and the normal production is fully guaranteed.

Description

technical field [0001] The invention belongs to the field of non-woven fabric weaving, and in particular relates to a composite non-woven fabric for filtering dust and a manufacturing process thereof. Background technique [0002] Conventional dust filtration requires that the material not only have high air permeability, high filtration accuracy, and high dust holding capacity, but also must have sufficient tensile strength to withstand the impact of airflow above 1800pc. At present, needle-punched non-woven fabrics are generally used as materials for dust filtration, but the biggest disadvantages of ordinary needle-punched non-woven fabrics are large pore size, low filtration accuracy, and uneven air permeability. In order to improve this defect, methods such as surface ironing and singeing are used to improve the surface layer, and the surface layer is used to filter, and the air-permeable membrane with high precision is bonded with needle-punched cloth glue to improve th...

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
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Application Information

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IPC IPC(8): B01D39/08B01D46/00D04H1/46D04H13/00B32B27/36B32B27/02B32B27/06B32B27/12B32B37/10
CPCB01D39/083B01D46/00D04H1/46D04H13/00B32B5/022B32B5/028B32B5/06B32B5/26B32B27/08B32B27/12B32B27/36B32B37/1009B32B2262/0284B32B2250/20B01D2239/06B01D2239/065B01D2275/10
Inventor 何忠孙志钜
Owner ZHEJIANG YUBANG FILTER MATERIAL TECH CO LTD
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