JPH0245817Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to a judgment plate, and more specifically, to a test plate formed on the surface of the judgment plate, a specimen such as urine or blood and a latex aggregation liquid are dropped, and the The present invention relates to a disposable evaluation board suitable for inspecting the condition of a subject by visually confirming the presence or absence of cloudiness.

<Conventional technology> A disposable evaluation board, which consists of a closed-loop silk screen printing on the surface of a hydrophilic film with hydrophobic ink to form a bank, and the inside of which is used as an inspection area, was developed in the early 1990s.
It is described in Japanese Patent Publication No. 54-154792, Japanese Patent Publication No. 51-28690, Japanese Patent Application Laid-open No. 100863/1982, or Utility Application No. 49542/1989 and Japanese Utility Model Application No. 93121/1989 filed by the applicant. And the above 2 by the applicant
In the application in question, since the testing area is black and hydrophilic, the dropped sample and flocculating liquid spread well on the inside of the testing area and do not flow out from the bank, and the presence or absence of cloudiness is unknown. It had the characteristic that it was easy to see because it was black.

<Problem to be solved by the invention> However, in both of these applications, the hydrophilic film has a gloss, but because of this, when exposed to strong light such as direct sunlight from the outside, reflection occurs on the entire surface. However, even though the back was black, it was difficult to see.

Therefore, an object of the present invention is to provide a judgment board that is easy to see and discriminate even when exposed to strong light.

<Means for Solving the Problems> In order to solve the above-mentioned object, the present invention applies thick printing in the form of a closed loop with hydrophobic ink to the surface of a glossy hydrophilic film to form a bank, and the inside thereof is used as an inspection area. To provide a judgment board characterized in that only the outside of the closed-loop bank is matted.

<Function> In the present invention, the hydrophilic film is exposed in the testing area, allowing the subject to be examined to spread well. During observation, the outside of the bank is treated with pine so that no light is reflected and does not interfere with observation. In addition, in the inspection section, the light passes through the subject, is reflected on the surface of the hydrophilic film, and then passes through the subject again and bends to the eye.
The presence or absence of cloudiness can be clearly observed.

<Example> In the present invention, the glossy hydrophilic film is, for example, polyvinyl alcohol or a film obtained by crosslinking polyvinyl alcohol by an appropriate method. There is a stretched polyvinyl alcohol film known under the trade name (manufactured by ).

Further, as another hydrophilic film, a plastic film such as a polyester film or a stretched polypropylene film may be made hydrophilic by forming a silicon dioxide vapor deposited layer thereon.

These films may be used by laminating them with other films or papers. A preferred laminated material is one in which the back surface of a polyvinyl alcohol film is printed entirely with black ink, and cardboard and stretched polypropylene film are successively laminated to this printed surface.

Hydrophobic inks use polyester or polyvinyl chloride as a binder, and also contain pigments, waxes, and other additives. Preferably, the ink contains wax in an amount of 0.5 to 10 wt% of the total ink. This is because the analyte and the flocculation liquid are effectively prevented from flowing out of the testing section. The ink is thickly printed in a closed loop to a thickness of 5 to 10 μm.

The outside of the bank formed by this thickly printed ink is matted. The matte treatment is to eliminate surface gloss, and may be carried out by any method, but it is convenient to print with matte ink containing calcium carbonate or the like, for example.

The judgment plate thus obtained is as shown in the plan view of FIG. 1 and the cross-sectional view of FIG. 2, where A indicates the inspection area, B indicates the bank made of hydrophobic ink, and C indicates the outside of the bank. 1 is a stretched polypropylene film, 2
is cardboard, 3 is polyvinyl alcohol film, 4 is
is a hydrophobic ink. Note that the inspection area A has the original luster of a polyvinyl alcohol film, and the outer side C of the bank has been matte treated with matte ink 5 to reduce its luster.

<Effects of the invention> The present invention is as described above, but since the outside of the bank is not glossy, it does not reflect light and does not interfere with viewing the inspection results, and the inspection part is glossy. The light passes through the subject and is partially reflected, and this reflected light passes through the subject and is visible to the eye, making it extremely easy to see whether or not the subject is cloudy.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a plan view of a determination plate, and FIG. 2 is a sectional view thereof. A... Inspection section, B... Bank, 1... Stretched polypropylene film, 2... Cardboard, 3... Polyvinyl alcohol film, 4... Hydrophobic ink.

Claims (1)

[Scope of utility model registration request] The surface of the glossy hydrophilic film is printed with thick, closed-loop patterns using hydrophobic ink to form a bank, and the inside of the bank is used as an inspection area. Only the outside of the closed-loop bank is treated with matte. A judgment board characterized by: