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A kind of production method of high adsorption melt-blown non-woven fabric
Technical field The present invention relates to a kind of non-woven fabric, be specifically related to a kind of production method of the melt-blown non-woven fabric that can efficiently adsorb formaldehyde and other harmful substances. BACKGROUND OF THE INVENTION Non-woven fabrics, also known as non-woven fabrics and non-woven fabrics, are composed of directional or random fibers and are a new generation of environmentally friendly materials. They are moisture-proof, breathable, flexible, light in weight, non-combustible, easy to decompose, non-toxic and non-irritating. , rich colors, low price, recyclable and so on. For example, polyacrylonitrile, polypropylene (PP material) and other pellets are used as raw materials, and are produced by a continuous one-step method of high temperature melting, spinning, laying, and hot pressing and coiling. It is called cloth because of its appearance and certain properties. Non-woven fabric is a kind of fabric that does not require spinning or weaving. It is only formed by orienting or randomly arranging textile staple fibers or filaments to form a web structure, which is then reinforced by mechanical, thermal bonding or chemical methods. . Nonwovens break through the traditional textile principles, and have the characteristics of short process flow, fast production rate, high output, low cost, wide use, and many sources of raw materials. The non-woven fabric with adsorption is mainly activated carbon non-woven fabric. The process is mainly to sprinkle activated carbon powder on the non-woven fabric, and then use glue or hot-melt composite method to combine the activated carbon and non-woven fabric. Or the hot-melt method will further increase the filtration resistance of the non-woven fabric, reduce the filtration efficiency of the non-woven fabric, and the production process is complicated and the process is many. For example, the patent number is 201220180536. 2. The patent named 'Activated Carbon Nonwoven' discloses a kind of activated carbon nonwoven, comprising a nonwoven layer, and the nonwoven layer comprises an inner layer and an inner layer, and the described nonwoven layer An activated carbon layer composed of powder-like structured particles is also adsorbed and fused between the inner layer and the outer layer, and the non-woven fabric layer and the activated carbon layer are connected by viscose. Although this patent puts the activated carbon layer between the non-woven layers, it is connected by the method of 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. capacity and adsorption capacity of activated carbon, so its structure needs to be further improved. Moreover, activated carbon often removes harmful gases through physical adsorption, and the harmful gases in activated carbon often overflow again at high temperatures, causing secondary pollution. SUMMARY OF THE INVENTION The object of the present invention is to overcome the deficiencies of the prior art, provide a kind of production method of high-adsorption melt-blown non-woven fabric, and the non-woven fabric produced by this method has extremely high adsorption performance to formaldehyde and other harmful substances. For achieving the above object, the present invention realizes through the following technical solutions: a kind of production method of high-adsorption melt-blown nonwoven fabric, comprising the following production steps: (1) by mass percentage of removing formaldehyde particles, activated carbon particles are (25% ~ 75%): (75%～25%) stir and mix to obtain additive material; (2) by weight ratio is 25: (0.4～1.6) non-woven macromolecule pellets, auxiliary agent are mixed Stir evenly, then melt-spin it by the melt-blown method, and mix it with the additive material in step (1) before forming the web, utilize air flow or mechanical web-forming to obtain the high-adsorption melt-blown nonwoven cloth. Preferably: the described formaldehyde removal particles are 1:(0.01~0.05):(0.5~1.0):(1~2):(0.3~0.8) by mass ratio: (1~3) potassium permanganate, platinum powder, manganese acetate, sodium hydroxide, activated alumina and titanium dioxide. Preferably: described activated carbon particle is coconut shell activated carbon particle. Preferably: by mass percentage, the consumption ratio of the polymer pellets in the step (2) and the additive material in the step (1) is: 25: (0.4～1.6). Preferably: the macromolecular pellet described in the step (2) is one or more of polypropylene, polyester, viscose fiber, polyethylene, acrylic fiber. Preferably: the auxiliary agent described in the step (2) is stearic acid, penetrant T, sodium dodecylbenzenesulfonate, Tween83, Tween80, Tween65, emulsifier OP10, fatty alcohol polyoxyethylene ether sulfuric acid One or more of sodium and propylene alginate. The beneficial effect of the present invention is that during the diffusion process of the target molecules, the formaldehyde-removing particles in the non-woven fabric of the present invention can capture the target molecules, and contact the active components in the non-woven filter material, and chemical adsorption reaction occurs. The chemical adsorption reaction occurs, and a chemical bond stronger than the van der Waals force will be formed between the target molecule and the non-woven filter material, so as to avoid desorption, thus eliminating the possibility of secondary pollution. In addition, the abundant microporous structure and highly reactive active ingredients inside the non-woven fabric ensure the purification efficiency and adsorption capacity of the non-woven fabric. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The specific embodiments of the present invention will be further described below in conjunction with specific embodiments, but the present invention is not limited to the following embodiments. A kind of production method of high-adsorption melt-blown non-woven fabric, according to the production technology of melt-blown non-woven fabric,It includes the following production steps: (1) stirring and mixing the formaldehyde removal particles and activated carbon particles uniformly to obtain additive materials; (2) uniformly mixing and stirring the macromolecular pellets and additives for non-woven fabrics, and then, by melt-blown method. Melt spinning, and after mixing with the additive material in the step (1) before forming a network, utilize air flow or mechanical network forming to obtain the high-adsorption melt-blown nonwoven fabric of the present invention.
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