Disposable hand warmers covered with a coating that has low oxygen and moisture permeability.

Abstract

We offer disposable hand warmers that have a gentler heating temperature and a longer heating time. [Solution] In order to reduce the ratio of oxygen and moisture supply to the heating element, the disposable hand warmer is characterized in that the fibers of the film covering the heating element of the hand warmer are made of fibers 3 that have a lower oxygen and moisture permeability and higher density than conventional materials.

Description

Field of the Invention

[0001] The present invention relates to a covering that covers the heating part of a disposable warmer.

Background Art

[0002] Disposable warmers are currently widely used. The covering is used not only for disposable warmers but also for various items such as pillows, futons, seat cushions, electric cords, etc.

Summary of the Invention

Problems to be Solved by the Invention

[0003] Many conventional disposable warmers reach temperatures of 50 degrees or more and have a duration of around 12 hours. Depending on the area where it is pasted, if it is continuously pasted due to the initial high temperature, the skin may turn black. Also, although the duration is around 12 hours, if it is initially at a high temperature for 6 to 7 hours or more, it gradually cools down.

Means for Solving the Problems

[0004] The present invention changes the cover that covers the heating part of a disposable warmer to a high-density fiber with a low oxygen and moisture permeability rate compared to conventional ones, and instead of generating heat all at once, it generates heat gradually. [[ID=2D]] Improved disposable warmer.

Effects of the Invention

[0005] Controls the heating temperature of the disposable warmer to around 41 degrees to make it gentle. The temperature difference from the beginning to the end becomes gentle.

[0006] Instead of the heating temperature decreasing compared to conventional ones, the heating time extends. It is possible to maintain a gentle warmth for about 24 hours or more, which is effective for continuously warming joints, kidneys, etc. It is also possible to maintain it for 24 hours from after taking a bath the previous day until taking a bath the next day, and it is very comfortable physically.

[0007] There is considerable evidence suggesting that warming weakened parts of the human body can restore them to their original healthy state. Examples include relief from stiff shoulders, hip pain, and the death of cancer cells through heat. Looking ahead, it's possible that warming the kidneys, which are densely packed with capillaries, from the outside could stimulate new capillary formation and help restore weakened kidney function. Furthermore, non-adhesive heat packs could be covered with a low-transparency coating. Combining this with ultrasound or powerful magnets is also a possibility. [Brief explanation of the drawing]

[0008] [Figure 1] A general view of a conventional disposable hand warmer. [Figure 2] The surface covering is made of fibers designed to have an oxygen permeability of approximately 70% of that of the coating of conventional disposable hand warmers. This fiber forms the coating that covers the improved disposable hand warmer. [Modes for carrying out the invention]

[0009] The standard size of a disposable adhesive heat pack is approximately 9cm long and 13cm wide, while the mini size is approximately 6cm long and 10cm wide. One side of the heat pack has an adhesive surface, which is attached to clothing such as underwear and is not visible, so this side is called the back. Conversely, the visible side is called the front. The adhesive surface on the back and the coating covering the front overlap by a width of approximately 8mm around the perimeter of the heat pack, preventing the iron powder inside from leaking out. At the same time, oxygen and moisture are allowed to permeate through the surface coating, generating heat through the oxidation process of the iron powder inside. The outer surface of the disposable hand warmer is covered with fibers that have a structure that reduces the oxygen and moisture permeability to about 70% compared to the conventional outer coating.

[0010] The amount of iron powder inside can be changed depending on the duration and temperature. [Examples]

[0011] An embodiment will be described below with reference to the attached figures. [Figure 1] is an overall view of a conventional disposable hand warmer seen from the front, and [Figure 2] is an overall view of an improved disposable hand warmer seen from the front, in which the outer surface is covered with a denser coating than the conventional one, resulting in an oxygen and moisture permeability of about 70%. [Explanation of Symbols]

[0012] 1. Overall view of a conventional disposable hand warmer from the front. 2. Overall view of the improved disposable hand warmer from the front. 3. Fiber covering the outer surface of the improved disposable hand warmer.

Claims

[Claim 1] A disposable hand warmer characterized in that, in order to reduce the ratio of oxygen and moisture supply to the heating element of the hand warmer, the fibers of the film covering the heating element of the hand warmer are composed of fibers with low oxygen and moisture permeability and high density.

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