Multifunctional film capable of adjusting temperature automatically and application of multifunctional film

Abstract

The invention discloses a multifunctional film capable of adjusting temperature automatically. The multifunctional film at least comprises a functional material carrier layer and a heat-preservation layer close to the skin from outside to inside, the functional material carrier layer is a sealed cavity structure composed of water-impervious flexible materials, at least refrigerating or heating chemical raw materials are arranged in a sealed cavity, and the heat-preservation layer is composed of waterproof and heat-preservation materials. If the heating chemical raw materials are contained in the sealed cavity, heat radiated from the functional material carrier layer can be uniformly and stably transferred to the skin through the heat-preservation layer, the heat transmitted to the skin cannot be dissipated quickly, the risk of low-temperature scalding caused by original high temperature is avoided, and the skin keeps in a stable and proper temperature effectively; if the refrigerating chemical raw materials are contained in the sealed cavity, heat of the skin cannot be absorbed instantly by the functional material carrier layer due to the heat-preservation layer, and accordingly the situation that a part of the skin is frostbitten is avoided, heat exchange is uniformly carried out between the functional material carrier layer and the skin and the cold insulation time is obviously prolonged.

Description

Technical field [0001] The present invention relates to a multifunctional film that spontaneously adjusts temperature and its application, and in particular to a film that can generate heat, cool, or both heat and cool in one, and its application. Background technique [0002] Hot compress can expand blood vessels, improve local blood circulation, and promote local metabolism, which is beneficial to the recovery of diseases. The hot compress itself can also relieve muscle spasms and promote the elimination of inflammation and blood stasis. The hot compress can also allow the drug to be absorbed locally and reach the hospital directly, making the treatment more direct and effective. [0003] Cold compress can constrict blood vessels, reduce local congestion, inhibit sensory nerves, reduce pain, relieve symptoms, and have the effects of cooling, hemostasis, analgesia and swelling. [0004] In the hot and then cold compress method, the hot temperature causes the blood vessels ...

AI Technical Summary

Problems solved by technology

[0005] Existing non-exogenous chemical hot compress bags have the following disadvantages: 1) the initial temperature is too high, which easily causes low-temperature burns, and tissue damage occurs at the application site due to warming; 2) heating is uneven, and the local temperature is too high; 3) heat Dissipate too quickly, the duration of fever is short

[0006] The disadvantages of the existing non-exogenous chemical refrigeration type ice packs are: 1) the cooling time is short; 2) the effect of cold compress is uneven, which easily causes local frostbite; 3) the accumulation of local condensed water causes the place of cold compress to be wet, which cannot fit the local tissue of the human body

[0007] More importantly, the existing non-exogenous chemical hot packs or cold packs are difficult to achieve automatic temperature adjustment, and cannot meet the different needs of different consumers for temperature

[0008] Moreover, the existing products that can achieve hot compress first and then cold compress have complicated structure, high cost and cumbersome operation. For example, they need to be connected to an external power source and use a semiconductor cold control chip, such as the Chinese utility model patent with patent number 00252623.9 and application number 02159757 .X’s Chinese Invention Patent Publication

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