Efficient low-resistance spunbonded nonwoven filter material, production equipment and manufacturing method thereof

A technology of production equipment and manufacturing method, applied in the field of non-woven fabric production, can solve problems such as the decrease of filtration precision, and achieve the effects of improved filtration precision, good air permeability and good filtration precision

Active Publication Date: 2014-03-19
FOSHAN S L P SPECIAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the fineness of monofilament is increased, the air permeability of the product will be improved, but the filtration accuracy will decrease

Method used

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  • Efficient low-resistance spunbonded nonwoven filter material, production equipment and manufacturing method thereof
  • Efficient low-resistance spunbonded nonwoven filter material, production equipment and manufacturing method thereof
  • Efficient low-resistance spunbonded nonwoven filter material, production equipment and manufacturing method thereof

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Embodiment Construction

[0044] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0045] The production process of high-efficiency and low-resistance spunbond nonwoven filter materials is as follows:

[0046] Polymer slicing—air conveying—precrystallization—drying—melt spinning—slow cooling and heating—air drafting—spinning into a web—strengthening into cloth—slitting and winding.

[0047] refer to figure 1 , the present invention adopts the airflow conveying on slice conveying, and slice throws into material bucket, after impurity is screened out by vibrating screen, the pulse airflow produced by Roots blower is conveyed to the storage tank 1 on the roof. The wet slices in the storage tank 1 are conveyed by the rotary valve and fall into the pr...

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Abstract

The invention relates to an efficient low-resistance spunbonded nonwoven filter material which comprises at least four rows of silks, including first to fourth rows of silks, sequentially arranged from top to bottom, wherein the first row of silks has a rough filtration function, and the fineness is 2.5-3.5dtex; the second row of silks has a fine filtration function, and the fineness is 0.5-1.5dtex; the third row of silks has the effect of a framework and a stiffening function, and the fineness is 10-15dtex; the fourth row of silks has a ventilating function and a good adhesive effect, and the fineness is 5-7dtex. The finenesses of all rows of silks in the non-woven fabric are agilely adjusted, so that the filter material is high in air permeability, small in filter resistance and long in filter period while achieving high filter efficiency. Compared with conventional spunbonded nonwoven filter materials, the efficient low-resistance spunbonded nonwoven filter material has the advantages that the finenesses of the layers of the product are different, so that the filter material has a good gradient filter effect. The filter material is excellent in air permeability, small in filter resistance and long in filter period while achieving good filter efficiency.

Description

technical field [0001] The invention belongs to the technical field of nonwoven fabric production, and in particular relates to a high-efficiency and low-resistance spunbonded nonwoven filter material, production equipment and a production method thereof. Background technique [0002] The spunbonding method, also known as the spinning method, is the most important and widely used method in nonwovens. It uses the principle of chemical fiber spinning to lay continuous filament fibers into a web during the polymer spinning process, and the web is reinforced by mechanical, chemical or thermal methods to form a nonwoven fabric. The specific process is as follows: [0003] After the polymer slices are put into the hopper, they are fed into the screw extruder. The screw has a heating function. The slices are melted and extruded in the screw. The filtered melt is transported to the spinning assembly by the metering pump according to a certain flow rate. The filament assembly is eq...

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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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/14B01D39/16
Inventor 李杰周思远杨薇吕大鹏陈让军
Owner FOSHAN S L P SPECIAL MATERIALS
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