Production method of high-adsorptivity melt-blow non-woven fabrics

Abstract

The invention discloses a production method of high-adsorptivity melt-blow non-woven fabrics. The production method comprises the production steps that (1), formaldehyde removal particles and activated carbon particles are stirred and mixed evenly according to the mass percent of (25-75%):(75%-25%) to obtain annexing agent materials; (2), macromolecule granules and an assisting agent of non-woven fabrics with the weight percent being 25:(0.4-1.6) are mixed and stirred evenly, melt spinning is carried out through a melt-blow method, the mixture is evenly mixed with the annexing agent materials in the step (1) before net formation, and the high-adsorptivity melt-blow non-woven fabrics are obtained by the utilization of air currents or mechanical net formation. The formaldehyde removal particles comprise potassium permanganate, platinum powder, manganese acetate, sodium hydroxide, activated aluminum oxide and titanium dioxide all of which the mass percent is 1:(0.01-0.05):(0.5-1.0):(1-2):(0.3-0.8):(1-3). The formaldehyde removal particles in the non-woven fabrics can capture target molecules and make contact with active constituent in the non-woven fabrics to generate the chemical adsorption reaction, and the formaldehyde removal rate is extremely high.

Description

technical field [0001] The invention relates to a non-woven fabric, in particular to a production method of a melt-blown non-woven fabric capable of efficiently absorbing formaldehyde and other harmful substances. Background technique [0002] Non-woven fabrics, also known as non-woven fabrics and non-woven fabrics, are composed of directional or random fibers. Rich, cheap, recyclable and so on. For example, polyacrylonitrile, polypropylene (PP material) and other pellets are mostly used as raw materials, which are produced by continuous one-step process of high-temperature melting, spinning, laying, and hot-pressing coiling. It is called cloth because of its appearance and certain properties. Non-woven fabric is a kind of fabric formed without spinning and weaving. It is just oriented or randomly arranged textile short fibers or filaments to form a web structure, and then reinforced by mechanical, thermal bonding or chemical methods. . Nonwovens have broken through the ...

AI Technical Summary

Problems solved by technology

Although the patent places the activated carbon layer between the non-woven fabric layers, it is connected by viscose. The viscose layer will not only increase the filter resistance of the non-woven fabric, but also block the gaps of the activated carbon, thereby affecting the filtration of the non-woven fabric. ability and the adsorption capacity of activated carbon, so its structure needs to be further improved

Moreover, activated carbon often removes harmful gases through physical adsorption, and harmful gases in activated carbon tend to overflow again at high temperatures, causing secondary pollution

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