A kind of production method of highly absorbent melt-blown non-woven fabric

Abstract

The invention discloses a method for producing a high-adsorption melt-blown non-woven fabric. The production steps include: 1) removing formaldehyde particles and activated carbon particles by mass percentage into (25%-75%): (75%-25%) ) Stir and mix evenly to obtain additive materials; 2) Mix and stir evenly the polymer pellets and additives for non-woven fabrics with a weight ratio of 25: (0.4 to 1.6), and then melt-spin them by melt-blowing method. After being evenly mixed with the additive materials in step 1) before forming a network, the high-adsorption melt-blown non-woven fabric is obtained by air flow or mechanical network forming; wherein, the mass ratio of the formaldehyde-removing particles is 1:(0.01 ~0.05): (0.5~1.0): (1~2): (0.3~0.8): (1~3) of potassium permanganate, platinum powder, manganese acetate, sodium hydroxide, activated alumina and titanium dioxide . The formaldehyde-removing particles in the non-woven fabric of the present invention can capture target molecules and contact the active components in the non-woven fabric to undergo chemical adsorption reaction, and have extremely high formaldehyde removal rate.

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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