TWM649834U - Bacteria coloring patch - Google Patents

Abstract

A bacterial color patch is used to solve the problem of time and space limitations in conventional bacterial detection methods. The system includes: a base layer with a lower surface and an upper surface; a color-developing layer that is combined with and separated from the upper surface of the base layer; the color-developing layer is mixed with an acid-base indicator and a carrier material Made of; and a protective layer, combined with the base layer, and covering the upper surface of the color layer. This can achieve the effect of convenient use and improve users' hygiene awareness.

Description

Bacteria color patch

This creation is about a patch, specifically a bacterial color patch that detects bacteria and displays color.

After the COVID-19 epidemic slowed down, the demand for masks and disinfectant alcohol decreased, and people's concern about health protection also declined. However, there are still many pathogenic bacteria that pose a threat to the human body in daily life. These pathogenic bacteria may remain on surfaces that are frequently touched in public places (such as elevator buttons, door handles, etc.). When humans come into contact with these When pathogenic bacteria are not properly disinfected, you may suffer from bacterial infections.

The conventional bacterial detection method mainly detects the growth of bacteria through culture and analysis in a laboratory environment. However, the use of this detection method is limited by time and space. Currently, it is not available at any time. A detection method to detect the distribution or growth of bacteria on the surface of any object anywhere.

In view of this, there is still a need to improve conventional bacterial detection methods.

In order to solve the above problems, the purpose of this invention is to provide a bacterial color patch that can display the distribution of bacterial colonies through color changes.

The second purpose of this invention is to provide a bacterial color patch that can be easily adhered to the surface of an object to detect bacteria.

The directionality or similar terms mentioned throughout this creation, such as "front", "back", "left", "right", "top (top)", "bottom (bottom)", "inside", "outside" , "side", etc. mainly refer to the directions of the attached drawings. Each directionality or similar terms are only used to assist in explaining and understanding the various embodiments of the present invention, and are not used to limit the present invention.

The use of the quantifier "a" or "one" in the components and components recorded in the entire text of this creation is only for convenience of use and to provide the usual meaning of the scope of this creation; in this creation, it should be interpreted as including one or at least one, and single The concept of also includes the plural unless it is obvious that something else is meant.

Approximate terms such as "combination", "combination" or "assembly" mentioned throughout this article mainly include forms that can be separated without damaging the components after being connected, or components that are inseparable after being connected. They are based on common knowledge in this field. You can choose according to the material of the components to be connected or the assembly requirements.

The bacterial color-developing patch of this invention includes: a base layer with a lower surface and an upper surface; a color-developing layer that is combined with and separated from the upper surface of the base layer; the color-developing layer is composed of an acid The alkali indicator is mixed with a carrier material; and a protective layer is combined with the base layer and covers the upper surface of the color layer.

According to this, the bacterial color-developing patch of the present invention can be adhered to a flat surface through the carrier material of the color-developing layer, so as to detect the formation of bacterial colonies on the flat surface, thereby achieving convenient use and regardless of the location of the space used. The efficacy of restrictions. In addition, the acid-base indicator in the color-developing layer can cause obvious color changes in the distribution of bacterial colonies, allowing users to easily identify the formation of bacterial colonies and achieving the effect of improving users' hygiene awareness.

Wherein, the base layer can be a release paper or a release film. In this way, the color-developing layer can be easily separated from the bonding surface, which has the effect of improving convenience of use.

Wherein, the color-developing layer can be coated on the bonding surface by spin coating. In this way, the color layer can be evenly distributed on the bonding surface, which has the effect of improving detection uniformity.

Wherein, the thickness of the color layer can be between 1.0 and 1.5 mm. In this way, the color-developing layer can contain enough acid-base indicator to maintain the color-developing effect.

Wherein, the discoloration range of the acid-base indicator can be between pH 4 and 6. In this way, the bacterial color patch can produce color changes when exposed to metabolites of E. coli, thereby improving the accuracy of E. coli detection.

Wherein, the initial pH value of the acid-base indicator can be greater than 6. In this way, the color-developing layer presents an alkaline color before use, which has the effect of improving color contrast.

Wherein, the carrier material can be polyvinyl alcohol. In this way, the carrier material can have polarity and high adhesion properties, which can not only dissolve the acid-base indicator, but also have the effect of improving the adhesion effect of the bacterial color patch.

Wherein, the acid-base indicator can be dissolved in the carrier material at a weight percentage of 5 to 15%. In this way, the acid-base indicator and the carrier material can be uniformly mixed to form the color layer, which has the effect of improving detection accuracy and uniformity.

The protective layer may be a transparent release paper or a transparent release film. In this way, the color developing layer can be easily separated from the protective layer, which has the effect of improving convenience of use.

Wherein, there are a plurality of color-developing layers between the protective layer and the base layer, and the plurality of color-developing layers have a tearing line between the base layer and the protective layer. In this way, the plurality of color-developing layers can be used individually or in combination, which has the effect of increasing the detection area range and making it easy to carry.

In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following is a preferred embodiment of the present invention and a detailed description with accompanying drawings; in addition, the same symbols are marked in different drawings. are considered to be the same and their description will be omitted.

Please refer to Figure 1, which is the first embodiment of the bacterial color-developing patch of the present invention. It includes a base layer 1, a color-developing layer 2 and a protective layer 3. The base layer 1 and the protective layer 3 can be connected. In combination, the color developing layer 2 can be sandwiched between the base layer 1 and the protective layer 3 .

The base layer 1 has a lower surface 11 and an upper surface 12. The upper surface 12 can be used to combine and facilitate the separation of the color layer 2. The base layer 1 can be a release paper or a release film.

The color developing layer 2 can be combined with the upper surface 12 of the base layer 1, and the color developing layer 2 can be easily separated from the upper surface 12. The color developing layer 2 can be combined by various conventional combination methods. On the upper surface 12 of the base layer 1, preferably, the color layer 2 can be coated on the bonding surface 11 by spin coating, so that the color layer 2 can be evenly combined with the bonding surface 11 . The coating thickness of the color-developing layer 2 can be between 1.0 and 1.5 mm, so that the color-developing layer 2 has a better color-developing effect.

The color developing layer 2 can be made by mixing an acid-base indicator and a carrier material, and the acid-base indicator is preferably dissolved in the carrier material. In this embodiment, the carrier material is polyvinyl alcohol (PVA), and the acid-base indicator is dissolved in PVA at a weight percentage of 5 to 15% to form the color layer 2 . The acid-base indicator can be a general chemical acid-base indicator or a natural acid-base indicator made from plants with acid-base discoloration ability (such as purple cabbage, red dragon fruit, butterfly pea flower). This invention does not allow limit. Since the pH value of the metabolites produced by E. coli is approximately between 5 and 6, the discoloration range of the acid-base indicator is preferably between pH 4 and 6, and the initial pH value of the acid-base indicator is greater than 6. Specifically, the initial state of the acid-base indicator is in the alkaline form, and the color layer 2 presents an alkaline color; when the color layer 2 comes into contact with metabolites produced by E. coli, due to the pH of the metabolites The value is less than 6, so the acid-base indicator will change into an acid form, and the color of the color layer 2 will also change into an acid color. In this embodiment, the acid-base indicator is methyl red (the color change range is between pH 4.2 and 6.2), the base color is yellow, and the acid color is red.

The protective layer 3 can be combined with the base layer 1. Preferably, the protective layer 3 and the base layer 1 are formed in corresponding shapes, and the protective layer 3 covers the upper surface of the color layer 2. The protective layer 3 can be a release paper or a release film, especially a transparent release paper or a release film, so that the protective layer 3 can be easily separated from the color developing layer 2 and the color can be easily understood. Whether the color layer 2 is contaminated before use.

Please refer to Figures 2 and 3, which are pictures of the use of the bacterial color-developing patch of this invention. When using the bacterial color-developing patch, first remove the base layer 1 to expose the color-developing layer 2 On the lower surface, the bacterial color-developing patch can be adhered or attached to the surface of an object P to be detected through the lower surface of the color-developing layer 2 . Then the protective layer 3 is peeled off to expose the upper surface of the color developing layer 2 . When a bacterium attaches to the surface of the detection object P, the upper surface of the color layer 2 will contact the bacterium, causing the color layer 2 to change from the basic color to the acid color. This can be achieved by The color change of the color layer 2 reminds the user of the bacterial adhesion situation on the surface of the detection object P, which has the effect of improving the user's hygiene awareness.

Please refer to Figure 4, which is the second embodiment of the bacterial color patch of the present invention. This embodiment is roughly the same as the above-mentioned first embodiment. In this embodiment, the base layer 1 has a larger Length or area, the upper surface 12 of the base layer 1 has a plurality of color developing layers 2, and the protective layer 3 has a length or area corresponding to the base layer 1, by which the protective layer 3 is in contact with the base layer 1 Combined, a plurality of the color-developing layers 2 are sandwiched between the base layer 1 and the protective layer 3, so that the plurality of bacterial color-developing patches can be formed into a continuous strip or a larger area. Preferably, the base layer 1 and the protective layer 3 between the plurality of color-developing layers 2 have a tear line 4 respectively, so that the bacterial color-developing patch can be torn off from the tear line 4 and used alone. In this way, the user can use the plurality of color-developing layers 2 individually or in combination according to different needs of use, which has the effect of increasing the detection area range and making it easy to carry.

In summary, the bacterial color-developing patch of this invention can be adhered to a flat surface through the carrier material of the color-developing layer to detect the formation of bacterial colonies on the flat surface, making it convenient to use and use space. Unlimited efficacy. In addition, the acid-base indicator in the color-developing layer can cause obvious color changes in the distribution of bacterial colonies, allowing users to easily identify the formation of bacterial colonies and achieving the effect of improving users' hygiene awareness.

Although the present invention has been disclosed using the above-mentioned preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make various changes and modifications relative to the above-described embodiments without departing from the spirit and scope of the invention. The technical scope protected by the creation, therefore, the protection scope of the creation shall include all changes within the literal and equivalent scope recorded in the appended patent application scope. Furthermore, when several of the above-mentioned embodiments can be combined, the present invention includes any combination of implementations.

﹝This creation﹞ 1: Grassroots level 11: Lower surface 12: Upper surface 2: Color layer 3: Protective layer 4:Tear line P: Detection object

[Picture 1] A three-dimensional view of the first embodiment of this invention. [Picture 2] Figure 1 of the usage situation of the first embodiment of this invention. [Picture 3] Figure 2 of the usage situation of the first embodiment of this invention. [Picture 4] A three-dimensional view of the second embodiment of this invention.

1: Grassroots level

11: Lower surface

12: Upper surface

2: Color layer

3: Protective layer

Claims (10)

A bacterial color-developing patch containing: A base layer has a lower surface and an upper surface; A color-developing layer, combined with and separated from the upper surface of the base layer, the color-developing layer is made of a mixture of an acid-base indicator and a carrier material; and A protective layer is combined with the base layer and covers the upper surface of the color layer. For example, the bacterial color patch of claim 1, wherein the base layer is a release paper or a release film. The bacterial color-developing patch of claim 1, wherein the color-developing layer is coated on the binding surface by a spin coating method. For example, the bacterial color-developing patch of claim 1, wherein the thickness of the color-developing layer is between 1.0 and 1.5 mm. For example, the bacterial color patch of claim 1, wherein the discoloration range of the acid-base indicator is between pH 4 and 6. For example, the bacterial color patch of claim 1, wherein the initial pH value of the acid-base indicator is greater than 6. The bacterial color-developing patch of claim 1, wherein the carrier material is polyvinyl alcohol. For example, the bacterial color patch of claim 1, wherein the acid-base indicator is dissolved in the carrier material at a weight percentage of 5 to 15%. The bacterial color-developing patch of claim 1, wherein the protective layer is a transparent release paper or a transparent release film. The bacterial color-developing patch of claim 1, wherein there are a plurality of color-developing layers between the protective layer and the base layer, and the plurality of color-developing layers have a tear line between the base layer and the protective layer. .

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