Static cotton material and preparation method and application thereof

Abstract

The invention provides a static cotton material and a preparation method and application thereof. The static cotton material is composed of a double-component composite filament yarn, the two components are of a parallel structure in the composite filament yarn, wherein the melt index of the component material A is 34-42 g / 10 minutes, the intrinsic viscosity of the component material B is 0.60-0.69 dl / g, and the oxygen index of the component material B is higher than 28.0%. the production process of the static cotton material is completely environmentally friendly, in use, the high-temperatureenvironment filter efficiency is little attenuated, the static cotton material has a bright filament yarn aesthetic cloth cover style, is low in smell and has a flame-retardant effect, and the staticcotton material is used for a high-dust-holding-capacity material in the field of building fresh air systems or vehicular air filtration application.

Description

Technical field [0001] The invention relates to a non-woven fabric material, in particular to an electrostatic cotton material. Background technique [0002] With the country's in-depth promotion of air pollution control and residents' pursuit of a higher quality of life, terminal applications such as home and passenger cars are paying more and more attention to air quality maintenance. Building fresh air system is an inevitable choice for the development of building technology. Building energy conservation cannot do without the fresh air system, and the health of residents cannot do without the fresh air system. The uneven fresh air market will surely usher in greater development after a deep reshuffle. The market share of passenger cars is increasing year by year. Driven by their consumption, the market demand for automotive air-conditioning filters is always at a high level. The strong demand for fresh air and automotive air filters has catalyzed the rapid update of the techn...

AI Technical Summary

Problems solved by technology

[0005] 1. The staple fiber electrostatic cotton is mostly made of polyester staple fiber and electrostatic functional staple fiber blended and then needled and reinforced. The needle marks and holes on the cloth surface are obvious, which reduces the filtration efficiency of the electrostatic cotton;

[0006] 2. The electrostatic properties of short-fiber electrostatic cotton mainly come from electrostatic functional short fibers. The manufacturing process is lengthy and the electrostatic attenuation is obvious in high-temperature environments, which cannot adapt to the high-temperature processing conditions of subsequent filter material compounding and filter material pleating processes;

[0007] 3. The arrangement and orientation of the short-fiber electrostatic cotton fibers are messy, and the appearance color is dark after forming, and the needle-punched consolidation is prone to unstable appearance such as fluffing, and the fabric style is poor in aesthetics;

[0008] If the short-fiber electrostatic cotton meets the flame-retardant requirements of passenger car interior materials, it must be coated or impregnated with a strong-smelling flame-retardant functional additive, and then dried in a tenter. The process is difficult and easy to change color and durability The more critical is that the production process has a strong odor during processing and needs to be matched with a special exhaust gas recovery treatment system. After the product is manufactured, it cannot meet the expected value within level 3 in the odor test VDA270 standard for automotive interior materials.

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