JPH0355897Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a light-transmissive test plate for testing the reaction status of a reagent and a specimen in clinical trials and the like.

[Prior Art] Glass slide glasses are currently used in clinical tests and other fields where measurements are made using transmitted light.

Although this slide glass has high permeability and high hydrophilicity, it is expensive (several hundred yen to several thousand yen each).
After use, it is washed and dried for repeated use.
However, since samples such as blood, body fluids, stool, and urine contain pathogenic bacteria, harmful viruses, and antigens, cleaning and sterilization work when reusing instruments may cause secondary infection to workers. It has become dangerous work.

In recent years, the number of tests of this type has been increasing, and the time-consuming work such as cleaning and sterilization is problematic both in terms of labor costs and risks, and inexpensive, disposable test plates are needed. Once it is produced, there are great expectations as it will be very convenient and there will be no need to worry about secondary infections.

[Problems to be Solved by the Invention] The present invention has been made in order to solve the above-mentioned problems in view of the above-mentioned current situation, and its purpose is to provide a disposable test plate.

[Means for solving the problem] The present invention was made for the above purpose,
A test area is punched out on a paperboard with a black surface, and a transparent hydrophilic film is adhered thereon, and the top surface of the hydrophilic film has a hydrophobic ring around the outer periphery of the test area, and the outer periphery is surrounded by a matte layer. It is something.

[Function] The inspection plate of the present invention has the above-mentioned structure, but the hydrophobic ring of the inspection area on the hydrophilic film is made of printing ink of 10μ or more, and its outer periphery is surrounded by a matte layer, The base is made of paperboard and has sufficient strength, and does not allow light to pass through other than the inspection area.
The black layer (black ink layer) on the surface also has this blocking effect, so the hydrophilic film can be made thinner and the amount of light transmitted can be increased. Furthermore, the matte layer on the outer periphery of the ring has the function of preventing the inspection from becoming difficult to see since hydrophilic films generally have a glossy surface and cause diffused reflection.

[Example] The present invention will be explained below with reference to the illustrated example.
FIG. 1 is an explanatory external view showing an example of the inspection plate of the present invention, and FIG. 2 is an explanatory cross-sectional view thereof.

1 is an inspection part, 2 is a hydrophobic ring, and 3 is a base material. The area around the ring 2 of the inspection section 1 is a matte layer e.
It is. The base material 3 has a black ink printing layer b on a paperboard a, and a transparent hydrophilic film d on top of the black ink printing layer b. The lower paperboard of the inspection part 1 is punched out circularly in the figure (punching part c), but it could also be oval. On the other hand, the hydrophilic film d preferably has the required transparency and hydrophilicity of 70 dyne/cm or more, and its material is polyester, polystyrene,
Polyvinyl alcohol and the like are suitable, and physical treatments such as corona treatment and plasma treatment are suitable as the hydrophilic method. On this hydrophilic film d, a hydrophobic ring 2 is provided on the outer periphery of the inspection area above the inspection area punching part c, but this is usually done by silk screen printing, and the height of the ink bulge and the ink Hydrophobicity prevents the test liquid from leaking outside the test area. The height usually needs to be 10μ or more. As the resin for the ink for the hydrophobic ring, polyester, polyvinyl chloride, etc. are used as the ink binder.

Furthermore, since the hydrophilic film d is glossy, it is important to surround the outer periphery of the hydrophobic ring 2 with matte ink, and it is preferable to process the hydrophilic film d in advance.

Next, an actual example will be shown. As a hydrophilic film, the entire surface of a 25 μm thick polyvinyl alcohol film (trade name: Boblon, manufactured by Nippon Film Co., Ltd.) was treated with corona. Separately, after fully black offset printing was performed on the top surface of paperboard A, the above film was dry-laminated on paperboard A (315 g/m ² ) (manufactured by Nihon Shigyo Co., Ltd., trade name: My Best W) that had been punched out in a circular shape in the inspection section 1. (Adhesive f may also be used).

Next, the non-inspection area (outside of the ring) is coated with pine varnish (manufactured by Toyo Ink Co., Ltd.) by silk screen printing.
A matte layer e is formed by printing a matte layer e (SS-16 Matsutomedeum), and a hydrophobic ring 2 is further printed on the outer periphery of the inspection area 1 with a hydrophobic ink (manufactured by Seiko Advice Co., Ltd., trade name Lamigloss) to a thickness of 10μ. was formed.

The inspection plate manufactured in this way has extremely high light transmittance, with the inspection area showing a light transmittance of 85% or more over the entire visible light range, and the film in the inspection area has a good hydrophilicity of 70 dyne/cm or more. It is an extremely easy-to-use test plate that has a wettability that allows the specimen to be spread over the entire test area (inside the ring) without reducing optical sensitivity.

[Effects] The inspection plate of the present invention has the above-mentioned configuration and can reliably place the object to be inspected on the hydrophilic portion.Also, since the inspection portion has a hydrophobic ring thickness of 10μ or more, it is easy to place the object to be inspected. The test object will not spill even when mixing reagents or shaking.

In addition, the test plate of this invention can be manufactured for around 10 to 20 yen each, and because of its low price, it is disposable and can be incinerated, eliminating the risk of secondary infection for medical workers and allowing for quick and easy testing. There are advantages such as being protected.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram of the appearance of the inspection plate of the present invention.
FIG. 2 is an explanatory cross-sectional view of the same. DESCRIPTION OF SYMBOLS 1... Inspection part, 2... Hydrophobic ring, 3... Base material, a... Paperboard, c... Punching part, d... Hydrophilic film, e... Matte layer.

Claims (1)

[Scope of utility model registration request] A test area is punched out from a paperboard with a black surface, and a transparent hydrophilic film is adhered thereon.The top surface of the hydrophilic film has a hydrophobic ring around the outer periphery of the test area and a matte layer surrounding the outer periphery. An inspection plate characterized by: