Method for producing high-absorptive melt-blown non-woven fabric

TECHNICAL FIELD The present invention relates to a non-woven fabric, in particular to a production method of a melt-blown non-woven fabric that can efficiently adsorb formaldehyde and other harmful substances. 2. Description of the Related Art Non-woven fabrics, also known as non-woven fabrics, non-woven fabrics, are composed of directional or random fibers. They 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 other characteristics. For example, polyacrylonitrile, polypropylene (PP material) and other pellets are mostly used as raw materials, which are produced by continuous one-step method of high-temperature melting, spinning, laying, and hot-pressing. It is called cloth because of its appearance and certain properties. Non-woven fabric is a kind of fabric that does not need to be spun and weaves, but only oriented or randomly braided textile short fibers or filaments to form a fiber network structure, and then reinforced by mechanical, thermal bonding or chemical methods. . Non-woven fabric breaks through the traditional textile principles, and has the characteristics of short process flow, fast production rate, high output, low cost, wide use, and multiple sources of raw materials. The absorbent non-woven fabric 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. Due to the adhesive method Or the hot-melt method will further increase the filter resistance of the non-woven fabric and 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 non-woven fabric' discloses an activated carbon non-woven fabric, including a non-woven fabric layer, the non-woven fabric layer includes an inner layer and an inner layer, the non-woven fabric layer An activated carbon layer composed of powdered structural 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 the patent puts the activated carbon layer between the non-woven fabric layers, it is connected by viscose. The viscose layer will not only increase the filtration resistance of the non-woven fabric, but also block the voids of the activated carbon, thereby affecting the filtration of the non-woven fabric. Capacity and the adsorption capacity of activated carbon, so its structure needs to be further improved. In addition, activated carbon often removes harmful gases through physical adsorption, and the harmful gases in activated carbon tend to overflow again at high temperatures, causing secondary pollution. SUMMARY OF THE INVENTION The purpose of the present invention is to overcome the shortcomings of the prior art and provide a method for producing high-absorptive meltblown non-woven fabrics. The non-woven fabrics produced by this method have extremely high adsorption performance for formaldehyde and other harmful substances. In order to achieve the above objectives, the present invention is achieved through the following technical solutions: A method for producing high-absorptive meltblown non-woven fabrics, including the following production steps: (1) The mass percentage of formaldehyde particles and activated carbon particles is (25%~ 75%): (75%~25%) Stir and mix uniformly to obtain additive materials; (2) Mix the polymer pellets and additives for non-woven fabrics with a weight ratio of 25: (0.4~1.6) Stir uniformly, and then melt-spun it by melt-blown method, and after it is evenly mixed with the additive materials in step (1) before web formation, airflow or mechanical web formation is used to obtain the high-absorptive melt-blown non-woven fabric cloth. Preferably: the mass ratio of the particles in addition to formaldehyde is 1:(0.01~0.05):(0.5~1.0):(1~2):(0.3~0.8): (1~3) It is composed of potassium permanganate, platinum powder, manganese acetate, sodium hydroxide, activated alumina and titanium dioxide. [0010] Preferably: the activated carbon particles are coconut shell activated carbon particles. Preferably, in terms of mass percentage, the ratio of the polymer pellets in the step (2) to the additive materials in the step (1) is 25: (0.4 to 1.6). Preferably, the polymer pellets described in step (2) are one or more of polypropylene, polyester, viscose fiber, polyethylene, and acrylic fiber. Preferably: the auxiliary agent in step (2) is stearic acid, penetrant T, sodium dodecylbenzene sulfonate, Tween83, Tween80, Tween65, emulsifier OP10, fatty alcohol polyoxyethylene ether sulfuric acid One or more of sodium and propylene glycol alginate. The beneficial effect of the present invention is that during the diffusion process of the target molecule, the formaldehyde-removing particles in the non-woven fabric of the present invention can capture the target molecule and contact the active ingredient in the non-woven fabric filter material to cause a chemical adsorption reaction. When the chemical adsorption reaction occurs, a chemical bond stronger than van der Waals force will be formed between the target molecule and the non-woven filter material, thereby avoiding desorption and eliminating the possibility of secondary pollution. In addition, the rich microporous structure and highly reactive active ingredients in the non-woven fabric ensure the purification efficiency and adsorption capacity of the non-woven fabric. DETAILED DESCRIPTION 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 method for producing high-absorption melt-blown non-woven fabrics, according to the production process of melt-blown non-woven fabrics, including the following production steps: (1) Stir and mix the formaldehyde particles and activated carbon particles uniformly to obtain additive materials; (2) The polymer pellets and auxiliaries for non-woven fabrics are mixed and stirred uniformly, and then melt-spun through the melt-blown method, and after they are uniformly mixed with the additive materials in step (1) before forming the web, use airflow or mechanical The high-absorption melt-blown non-woven fabric of the present invention is obtained by forming a net.