Thermosensitive cooling patch

Abstract

The utility model discloses a thermosensitive cooling patch. The thermosensitive cooling patch sequentially comprises a first breathable film layer, a gel layer, a second breathable film layer, a low-temperature viscosity-reducing adhesive layer and a release paper layer from top to bottom. The utility model has the advantage that the failure can be automatically prompted in use.

Description

Technical Field

[0001] This utility model belongs to the technical field of human body physical cooling and cold compress therapy devices, and particularly relates to a cooling patch. Background Technology

[0002] Cooling patches, also known as heat dissipation patches or cold compresses, work by transferring heat from the skin to a polymer gel layer. The water and other substances contained in the polymer gel layer evaporate and carry away the heat, thus lowering body temperature. As a physical cooling product, it is widely used for fever and other conditions.

[0003] Existing cooling patches generally consist of two structures: a polymer gel layer and a non-woven fabric backing. Some products have an additional protective membrane structure for the polymer gel layer, resulting in a simple overall structure. However, typical gel layer protection only addresses the prevention of gel layer contamination, which is not conducive to heat dissipation. The overall fixing device of the cooling patch is an external wearing structure, which is relatively cumbersome to use and requires constant attention to replace it when the cooling effect fails. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a heat-sensitive cooling patch that automatically prompts failure during use, so as to overcome the shortcomings of the existing technology.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A heat-sensitive cooling patch, characterized in that, from top to bottom, comprises a first breathable film layer, a gel layer, a second breathable film layer, a low-temperature anti-adhesion adhesive layer, and a release paper layer.

[0007] In this invention, the first breathable membrane layer and the second breathable membrane layer are polyethylene breathable membranes, polypropylene breathable membranes, or polylactic acid breathable membranes.

[0008] In this invention, the basis weight of the first breathable membrane layer and the second breathable membrane layer is 13-15 g / m³. 2 .

[0009] In this invention, the four edges of the first breathable membrane layer and the four edges of the second breathable membrane layer are heat-sealed together to seal the gel layer.

[0010] In this invention, the vapor permeability of the first and second breathable membrane layers is ≥3000 g / (m³). 2 •24h).

[0011] Using the above technical solution, the cooling patch of this utility model utilizes a low-temperature adhesive to be applied to the skin. As the skin temperature at the application site decreases, the adhesive strength of the low-temperature adhesive gradually decreases. If the cooling patch also becomes ineffective after use (i.e., when the moisture in the gel layer evaporates and dries out, losing its heat-conducting effect), the adhesive strength essentially disappears, and it can automatically detach, eliminating the need for the user to constantly monitor whether the cooling patch has become ineffective. When it is inconvenient for the user to constantly monitor whether the cooling patch has become ineffective, they can be notified by the loss of adhesive strength or the fact that the patch is about to fall off, thus providing the advantage of automatic failure warning.

[0012] The first and second breathable membrane layers, made of low-weight, high-permeability membranes, protect the gel from contamination and reduce the loss of moisture from the gel layer by airflow. Only the moisture in the adhesive layer passes through as vapor, thus improving heat absorption and cooling efficiency. The soft, low-weight, high-permeability membrane allows for close adhesion to both flat and uneven surfaces, enhancing the cooling effect. Attached Figure Description

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0014] Figure 1 This is a cross-sectional view of the utility model. Detailed Implementation

[0015] like Figure 1 As shown, the heat-sensitive cooling patch of this utility model consists of, from top to bottom, a first breathable film layer 100, a gel layer 200, a second breathable film layer 300, a low-temperature anti-adhesion adhesive layer 400, and a release paper layer 500.

[0016] The first breathable membrane layer 100 and the second breathable membrane layer 300 have heat-sealing properties, and their four edges are heat-sealed together to seal the gel layer 300.

[0017] Both the first breathable membrane layer 100 and the second breathable membrane layer 300 are made of low-basis-weight polyethylene breathable membrane, polypropylene breathable membrane, or polylactic acid breathable membrane, with a basis weight of 13-15 g / m³. 2 Steam transmission rate ≥3000g / (m 2 •24h).

Claims

1. A heat-sensitive cooling patch, characterized in that, From top to bottom, the layers are: the first breathable membrane layer, the gel layer, the second breathable membrane layer, the low-temperature anti-tack adhesive layer, and the release paper layer.

2. The thermal cooling patch according to claim 1, characterized in that, The first breathable membrane layer and the second breathable membrane layer are breathable membranes of polyethylene breathable membrane, polypropylene breathable membrane, or polylactic acid breathable membrane.

3. The thermal cooling patch according to claim 1, characterized in that, The first and second breathable film layers have a grammage of 13-15 g / m 2 .

4. The heat-sensitive cooling patch according to claim 1, characterized in that, The edges of the first breathable membrane layer and the edges of the second breathable membrane layer are heat-sealed together to seal the gel layer.

5. The thermosensitive cooling patch according to claim 1, wherein The vapor permeability of the first and second breathable membrane layers is ≥3000 g / (m³). 2 •24h).

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