Intelligent temperature-adjusting nonwoven fabric, intelligent temperature-adjusting coating and intelligent temperature-adjusting disposable sanitary article

Abstract

The invention discloses an intelligent temperature-adjusting nonwoven fabric, wherein the surface of the nonwoven fabric is sprayed with an intelligent temperature-adjusting coating. The intelligent temperature-adjusting coating is prepared according to the following methods: 1) preparing modified infrared radiation powder; 2) dispersing that modified infrared radiation power into isopropanol to obtain a mixed solution; 3) adding organic silicon flexible long-chain polymer raw materials into that mixed solution to obtain an infrared radiation powder composite precursor; 4) spraying that precursor of the composite onto the non-woven fabric. The invention adopts organic silicon flexible long-chain polymer, the infrared emissivity of infrared radiation powder heat is adjusted; the temperatureis higher, the polymer segments rotate more freer, the conformations are more, the flexibility of the polymer chains is better, and the molecules are curled-up more, which is equivalent to forming anopen door between fibers and cooperating with the infrared radiation powder, the infrared emissivity is high, and the heat is rapidly dissipated to achieve the cooling effect. On the contrary, the lower the temperature, the more the polymer chain stretches, which is equivalent to forming a closed door between the fibers. The infrared emissivity is low, and the heat cannot be dissipated, thus playing a role in heat preservation. Since the temperature adjustment mechanism is based on the curling or stretching of the chain, long-term temperature adjustment can be realized.

Description

technical field [0001] The invention relates to an intelligent temperature-regulating disposable sanitary product (sanitary napkin, paper diaper) Background technique [0002] Conventional intelligent temperature-regulating fibers often add phase-change materials to the fibers. When the external temperature is high, the phase-change core material changes from solid to liquid to absorb external heat, so that users will not feel stuffy. When the temperature is low, the phase change core material changes from liquid to solid and releases heat, thereby increasing the surrounding heat, and the user will not feel cold, so that the surrounding temperature can be kept in a relatively balanced range to meet the expectations of sanitary napkins. temperature adjustment effect. At a specific temperature, a phase transition occurs, heat absorption / release, and thus cooling / heating. However, the heat absorbed / released by the phase change material depends on the enthalpy change and the a...

AI Technical Summary

Problems solved by technology

However, the heat absorbed / released by the phase change material depends on the enthalpy and the amount of the phase change material, and it cannot achieve long-term temperature regulation.

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