JP6653908B1 - Petri dish marking method for marking petri dishes - Google Patents

Abstract

An object of the present invention is to provide a marking of a size that can be easily visually recognized and distinguished while taking into consideration the prevention of contamination of microorganisms from the outside, so-called contamination, when culturing an organism. A marking is provided on the surface of an upper plate, the upper plate is tightly sealed to a lower plate, and the upper plate is moved upward by an external force to move the upper plate upward, so that the lower end of the upper plate is located above the lower plate. Is formed, a non-wrapped enlarged area surface is formed on the side surface of the lower plate with the formation of the wrapped state, and the enlarged area surface is marked. [Selection diagram] FIG.

Description

  The present invention relates to a petri dish marking method for marking a petri dish, a marked petri dish, and a method for managing a cultured culture using the markings applied to the petri dish as management data for the cultured culture.

  Petri dishes are also called petri dishes, and are glass flat dishes used in microbial culture experiments.

  The Petri dish consists of two very shallow cylindrical containers with slightly different diameters so that they can be nested. Recently, square or other shaped petri dishes are available.

  The upper plate is slightly larger and shallower, and the lower plate is slightly smaller and deeper. Since the edges of the upper plate and the lower plate are cut so as to be parallel to the bottom surface, the upper plate and the lower plate are brought into close contact with each other by their own weight when they are allowed to stand, and are appropriately sealed.

  Although the size of a petri dish varies, a petri dish having a diameter of about 10 cm is often used at present. The standard height is about 1 cm to 2 cm, but some are several cm or more tall and are called waist high petri dishes.

  Petri dishes are originally made of glass, but must be sterilized when culturing microorganisms, and heat-resistant materials are used. Recently, plastics that have been sterilized in the manufacturing process are commercially available at lower cost than glass.

  The lower dish is provided with an agar medium serving as a culture tank at a deep portion inside. The agar medium is poured into the lower dish to form a thin solid medium where the microorganisms are cultured. When culturing microorganisms, consideration must be given to avoid contamination of microorganisms from outside, so-called contamination. When performing a series of operations, the petri dish is designed in a shape that is easy to handle while preventing contamination of various bacteria.

  Petri dishes are often used in large numbers at the same time in relation to usage. For this purpose, marking is performed on the surface of the upper plate of the petri dish, that is, on the upper surface or side surface, for distinguishing the microorganisms to be cultured or for distinguishing the culture experiment method. That is, user management information such as the type of bacteria, dilution concentration, and management attribute of the culture contents is classified according to the type of marking.

  Patent Document 1 describes that marking is performed by printing with fluorescent ink on the bottom surface of a petri dish containing a culture medium.

JP 2006-129713 A

  In order to identify a petri dish, it is required to mark the petri dish. To this end, markings have been made on the outer surface of the upper plate of the dish or on the bottom of the dish as described above. The upper plate and the lower plate may be separated for the sake of experiment. In such a case, there is a risk of erroneous recognition only by marking on the upper plate. In the marking on the bottom of the petri dish body, an operation of lifting the petri dish body for confirmation is required.

  In view of the above, the present invention makes it possible to apply markings of a size that can be easily visually recognized and distinguished, while taking into account the avoidance of microbial contamination from the outside, so-called contamination, when culturing the cultured bacteria. That is the task.

  FIG. 1 is a diagram showing a configuration of a petri dish 100.

  In the case of the present example, the petri dish 100 is a set of two cylindrical transparent containers, one of which is a bottom plate 1 with a lower plate 1, a bottom 3 at the deep bottom, an upper end 4 at the top, and an outer surface at the side. 5 and the culture medium is formed on the bottom surface of the upper bottom part at the bottom.

  The other is a lid that serves as the upper plate 2 and has an upper surface 6 at the upper portion, an outer surface 7 at the side surface, and a lower end 8 at the lower portion. This is a culture container that can be put on the lower plate 1. The lower plate 1 provided with a culture medium may be called a petri dish main body. The lower plate 1 provided with a culture medium may be called a culture container part.

  1A, the upper plate 2 is formed so that the lower end 8 of the upper plate 2 is located above the lower end 3 of the lower plate 1 when the upper plate 2 is in close contact with the lower plate 1 and is covered with a seal. 1 shows a petri dish 100 for culturing cultures. FIG. 1B shows a culture bacterium formed such that the lower end 8 of the upper plate 2 coincides with the lower end 3 of the lower plate 1 when the upper plate 2 is in close contact with the lower plate 1 and is sealed and covered. 1 shows a petri dish 100 for culture.

  The petri dish 100 usually has the shape shown in FIG. 1A, and the petri dish shown in FIG. 1A will be described below as an example.

In FIG. 1A, if the width from the upper end 4 of the lower plate 1 to the lower end on the bottom surface of the upper deep bottom is H ₁ , and the width from the bottom surface of the deep bottom to the lower end 8 of the upper plate 2 is H ₂ , H ₂ <a _{H 1.} In the example of FIG. 1B, H _{2 =} H ₁ .

FIG. 2 is a diagram illustrating a problem that arises when an operation of marking the outer surface 5 of the lower plate 1 is performed in the case of the example of FIG. a h ₀ = _{H 1} -H _2. When performing an operation of markings on the outer surface 5 of the lower tray 1, it must be carried out within the width of the h _0. The width of h ₀ is very narrow, decorated with markings become extremely small, or can not be determined, it is difficult to determine. In the example shown in FIG. 2 (b), the width of h ₀ is, for very narrow, upper tray 2 can not be subjected to marking is an obstacle.

As described above, conventionally, a petri dish having a marking only on the upper plate has been used.

  FIG. 3 is a diagram showing a means for solving the problem.

In FIG. 3, a petri dish 100 marked for culture of cultivation has a width H _{1 in the} height direction of the outer surface 5 of the lower plate 1, and a deep depth from the bottom surface 3 to the lower end 8 at the deep bottom of the upper plate 2. When the height is H ₂ , the difference between the two is H ₁ −H ₂ = h ₀ (h ₀ includes zero), and the upper plate is displaced with respect to the lower plate while leaving the wrap width h. In this state, the non-wrap width (H ₂ -h) is represented by H _1- (h ₀ + h).

  Here, regarding the outer surface 5 of the lower plate, assuming that the non-wrap width portion before the shift movement is 5A, the wrap width portion is 5B, the non-wrap width portion after the shift movement is 5a, and the wrap width portion is 5b, 5A + 5B. = 5a + 5b, 5a> 5A, 5b <5B. In the case of FIG. 1B, 5A is zero.

Accordingly, in the present invention, the petri dish 100 has the upper plate 2 having a marking provided on the surface of the upper plate 2 and the outer surface of the non-wrap width H _1- (h ₀ + h), and is visible on the outer surface. And a lower plate 1 having markings applied to the lower plate 1.

  According to the present invention, in the state where contamination by germs is prevented in the medium of the lower dish, what was conventionally one type of marking applied to the upper dish is formed by forming the two types of markings described above. The present invention provides a petri dish 100 comprising: an upper plate having a marking provided on an upper outer surface and / or an outer surface;

The non-wrap width H _1- (h ₀ + h) occupies most of the outer surface 5 and has an upper plate having a marking applied to the surface, and a marking provided on the upper plate having a culture bacterium incorporated therein. And a lower dish provided with a marking having the same portion on the outer surface thereof.

  FIG. 4 is a diagram illustrating a method for implementing the present invention.

  There are various materials and shapes of the petri dish, and an optimal marking method is adopted according to the various petri dishes. For this purpose, a marking device 110 is prepared, and the petri dish is marked.

  FIG. 4A shows a marking method employing a laser method for the marking device 110. An existing laser marking device 111 is prepared. The laser type marking device 111 has a laser oscillator 121 and performs surface treatment using a laser beam 122 to peel off the surface, shaving the material itself, or changing the material composition to form a color by marking. Apply.

  In FIG. 4B, a marking method employing an ink jet method is adopted for the marking device 110. An existing inkjet marking device 112 is prepared. The ink jet type marking device 112 has an ultrasonic head 123 and a deflector 124, and performs marking processing by printing on the surface using ink droplets 125.

  FIG. 4C shows that the marking device 110 employs a marking method employing an affixing method. An existing sticking type marking device 113 is prepared. The sticking type marking device 113 has a sealing material holding means 126 and sticks a seal on the outer surface 5 to perform marking.

  The laser type marking device 111, the ink jet type marking device 112, and the sticking type marking device 113 may be used as one device to perform marking by performing a selection operation according to various types of petri dishes.

According to the present invention, the dish can be visually recognized on the outer surface having the outer surface of the non-wrap width H _1- (h ₀ + h) in the shifted state with the wrap width h being left with respect to the lower dish. The lower plate 1 having a special marking can be configured.

  According to this, at the time of culturing the cultured bacteria, marking of a size that can be easily visually recognized and discriminated can be performed while taking into consideration the prevention of contamination of various germs from the outside, so-called contamination with microorganisms.

Diagram showing the configuration of a petri dish Diagram explaining problems that arise when performing the operation of marking the side of the lower plate Diagram showing the means for solving the problem Diagram for explaining a method for carrying out the present invention FIG. 2 is a diagram showing a configuration of an embodiment of the present invention. Diagram showing a state where three types of markings are applied FIG. 7 is a diagram showing a configuration of another embodiment of the present invention. FIG. 7 is a diagram showing a configuration of another embodiment of the present invention. Shows a Sharema over King method of applying a marking Petri dish which is an embodiment of the present invention

Before describing the configuration of an embodiment of the present invention, terms used in the present embodiment will be described.
<Chalet> The dish was described in the section of the background art, and is incorporated herein.
<Chalet material> Disposable (disposable) plastic (polystyrene), glass, metal, aluminum, and stainless steel are available. It is recommended that it be formed of a transparent container made of plastic or glass.
<Chalet shape> Available in round, square, shallow dishes, and deep dishes.
<Surface of upper plate> There is the upper surface of the upper portion of the upper plate or the outer surface of the upper plate. Both may be used.
<Formed wrap> The upper plate is pulled up relatively to the lower plate and moved, so that the width portion overlaps between the upper plate and the lower plate after the movement. There is an overlapping width portion between the upper plate and the lower plate even before being pulled up and moved, but it is not said here that the wrap is formed. The overlapping width portions do not need to be in contact with each other, but have a gap between both, and are overlapping when viewed from the side.

<The surface of the enlarged area in the non-wrapped state> Pull up and move up the upper plate and the lower plate before moving, and the upper plate and the lower plate. Area represented by the sum of the non-overlapping widths formed in
<Marking> There are three types of marking methods. Laser marking, marking by printing, and marking by sticking. Normally, black and white marking is used for marking, but color marking may be used in some cases.
<Deep Depth> The upper plate and the lower plate each have a dish-like cup shape with a bottom, and have a space therein, and refer to the width from the bottom surface of the space to the open end of each plate.
<Displacement movement> When the upper plate is moved relative to the lower plate or the lower plate relative to the upper plate, the upper plate is displaced and moved without eliminating the wrapped state where the upper plate is covered by the lower plate. The remaining wrapped state <Marking having the same part as the marking> Both markings have the same part in the main part of the characters and figures forming the marking, or both are completely the same. It is a figure showing composition of an example of an invention.

In this example, a marking method employing a laser method is executed in the marking device 110 shown in FIG. The marking device 110 includes a laser marker head 11, a vertically movable plate 12, a plate holding means 13, and a motor 14. The laser marker head 11 includes a downward fθ lens device 11A having an fθ lens and a horizontal fθ lens device 11B having an fθ lens for irradiating a laser controlled by a laser oscillator. The plate holding means 13 moves the vertically movable plate 12 up and down, and shifts the upper plate 2 with respect to the lower plate 1 during upward movement. The motor 14 rotates the lower plate 1.

  The marking 21 is formed on the upper surface 6 of the upper plate 2 by the downwardly directed fθ lens device 11A. The horizontal fθ lens device 11B can apply a marking 22 (see FIG. 6) to the outer surface 7 of the upper plate 2.

  A non-wrap width portion 5a, which is an enlarged area surface in a non-wrap state, is formed.

  The non-lap width portion 5a is marked with the marking 23 by the lateral fθ lens device 11B.

  The rotating operation of the lower plate 1 is performed when the marking 23 is applied to the non-wrap width portion 5a formed on the outer surface 5 over a wide range, and not when the marking 22 is applied over a small range.

  FIG. 6 is a diagram showing a state where three types of markings are given. A marking 21 is formed on the upper surface 6 of the upper plate 2, a marking 22 is formed on the outer surface 7 of the upper plate 2, and a marking 23 is formed on the non-wrap width portion 5a.

  FIG. 7 is a diagram showing the configuration of another embodiment of the present invention.

  In this example, a marking method employing an ink jet method is executed in the marking device 110 shown in FIG. The marking device 110 includes an inkjet head 31, a vertically movable plate member 32, a plate member holding unit 33, and a motor. The ink jet head 31 includes a downward ink droplet projecting device 31A and a lateral ink droplet irradiating device 31B, and projects an ink droplet controlled by an ink jet oscillator. The plate holding means 33 moves the vertically movable plate 32 up and down, and shifts the upper plate 2 with respect to the lower plate 1 during upward movement. The motor 34 rotates the lower plate 1.

  The marking 41 is made on the upper surface 6 of the upper plate 2 by the ink droplet irradiation device 31A facing downward. The lateral ink droplet irradiation device 31B can apply a marking 42 (corresponding to the marking 22 in FIG. 6) on the outer surface 7 of the upper plate 2.

  A non-wrap width portion 5a, which is an enlarged area surface in a non-wrap state, is formed.

  A marking 43 is applied to the non-wrap width portion 5a by the laterally oriented ink droplet irradiation device 31B.

  The rotating operation of the lower plate 1 is performed when the marking 43 is applied to the non-lap width portion 5a formed on the outer surface 5 over a wide range in the circumferential direction, but not when the marking 43 is applied over a small range.

  Also in the example shown in FIG. 7, three types of markings are provided as shown in FIG. The marking 21 is replaced with the marking 41, the marking 22 is replaced with the marking 42, and the marking 23 is replaced with the marking 43.

  FIG. 8 is a diagram showing a configuration of another embodiment of the present invention.

  In this example, a marking method employing the sticking method is executed on the marking device 110 shown in FIG. The marking device 110 includes a sticking device 51, a vertically moving plate 52, a plate holding means 53, and a motor 54.

  The sticking device 51 includes a top surface sticking device 51A and a horizontal surface sticking device 51B.

  The upper surface attaching device 51A includes a seal removing head 51AA and a seal 51AB, and the seal removing head 51AA is reciprocated by a reciprocating drive device (not shown) that reciprocates in a horizontal direction and a vertical direction. By performing the sticking operation, which is a reciprocating operation, the seal 51AB can be pressed against the upper surface 6 of the upper plate by the seal removing head 51AA.

  The lateral surface attaching device 51B includes a seal removing head 51BA, a seal 51BB, and a seal removing head rotating device 51BC. The seal removing head 51BA is connected to a seal removing head rotating device 51BC, and reciprocatingly operated by a reciprocating drive device (not shown) that reciprocates in the lateral direction. The seal removing head rotating device 51BC is rotated. It is rotated by a device (not shown) to rotate the seal removing head 51BA to a horizontal position. The seal removing head 51BA can press the seal 51BB against the outer surface 7 of the upper plate and the outer surface 5 of the lower plate.

  The marking 61 is made on the upper surface 6 of the upper plate 2 by the upper surface attaching device 51A. The lateral sticking device 51B can apply a marking 62 (corresponding to the marking 22 in FIG. 6) on the outer surface 7 of the upper plate 2.

  A non-wrap width portion 5a, which is an enlarged area surface in a non-wrap state, is formed.

  The non-wrap width portion 5a is marked with a marking 63 by the lateral sticking device 51B.

  The motor 54 is used at the time of sticking the seal.

  In the example shown in FIG. 8 as well, three types of markings are made as shown in FIG. The marking 21 is replaced with the marking 61, the marking 22 is replaced with the marking 62, and the marking 23 is replaced with the marking 63.

9 Sharema markings on Petri dish which is an embodiment of the present invention - is a diagram illustrating a King method.

9, Sharema over King method of applying a marking Petri dish 100 may be configured by a step S1 S7.

  A cylindrical transparent container is a set of two plates, one is a lower plate and has a bottom surface, the other is a lid to be an upper plate, and a culture container in which a medium is formed on the deep bottom surface of the lower plate. The upper plate is in close contact with the lower plate and can be sealed and put on the lower plate, and when the upper plate is in close contact with the lower plate and covered with the seal, the lower end of the upper plate is placed in the lower position. A petri dish 100 for culturing cultures, which is formed so as to match the lower end of the dish or to be located above the lower end, is prepared (S1).

A marking 21, 41 or 61 is provided on the surface of the upper plate 2.
The surface of the upper plate 2 has an upper upper surface 6 and an outer surface 7, and either or both are selected. Both may be selected. When the upper surface 6 is selected, the upper surface is marked 21, 41 or 61 (S 2). When the outer side surface 7 is selected, the outer side surface 7 is marked 22, 42 or 62 (S 3).

  The upper plate 2 is tightly attached to the lower plate 1 and is sealed and covered. (S4).

  The upper plate 2 is shifted upward by an external force 70, that is, the upper and lower moving plates 12, 32 or 52 and the plate holding means 13, 33 or 53 so that the lower end of the upper plate 2 is moved to the upper end of the lower plate 1. A state of wrapping around the part is formed.

  With the formation of the shift movement, a non-wrap width portion 5a, which is a non-wrapped enlarged area surface, is formed on the outer surface of the lower plate 1 (S5).

  At the time of the shifting movement, a wrap width portion 5b having a width sufficient to prevent contamination due to contamination of various bacteria is formed.

  When the upper plate is tightly sealed to the lower plate, the lower end of the upper plate 2 is positioned above the lower end of the lower plate 1 from the lower end. The upper plate is shifted upward by an external force to relatively shift the lower plate 1 downward, and the wrap width portion 5B, which is a reduced large-area surface, from the wrap width portion 5B before the shift movement, and the non-wrap width portion before the shift movement. A non-wrap width portion 5a, which is an enlarged area surface, is formed from 5A.

  The lower plate 1 may be displaced downward by an external force, and the upper plate 2 may be displaced upward relatively to form the non-wrap width portion 5a that is the surface of the enlarged area.

  The operation by the application of the external force is not limited to the vertically moving plate material 12, 32 or 52 and the plate material holding means 13, 33 or 53, and other appropriate external force operation means can be adopted.

  Since the petri dish 100 has various materials and shapes, the petri dish 100 is shifted in accordance with the various petri dishes so as not to cause contamination by germs and printing can be performed with an optimum power.

  The markings 23, 43, and 63 are applied to the non-wrap width portion 5a that is the surface of the enlarged area (S6).

  The marking method includes a marking method using a laser, a marking method using a printing method, and a marking method using a sticking method, and any method may be used.

  In FIG. 9, step S2 or step S3 is described next to step 1, but these steps may be performed after the markings 23, 43, 63 of step 6 are applied.

  When the marking is performed (S6), the upper plate 2 is returned to the lower plate 1 by shifting and returning to the state before the marking (S7). When the lower plate 1 is made of a transparent material, the markings can be easily visually recognized and distinguished from the outside.

Thus, Sharema over King method of applying a marking Petri dish 100 is completed.

A method of making a petri dish by marking the upper surface 6 and / or the outer surface 7 of the upper surface of the upper plate 2 with a marking 21, 41 or 61, or 22, 42, 62;
After the upper plate 2 is tightly sealed to the lower plate 1, that is, after being allowed to stand, the upper plate 2 is shifted upward by an external force 70, and the lower end of the upper plate 2 is moved after the lower plate 2 is moved. Wrapping only above, that is, forming the wrap width portion 5b,
With the formation of the state of wrapping only above, a non-wrap width portion 5a, which is a non-wrapped enlarged area surface, is formed on the outer surface 5 of the lower plate 1, and the marking 23, 43 or 63 is formed on the non-wrap width portion 5a. Is formed.

  The upper plate 2 having the markings 21, 41 or 61 or / and the markings 22, 42 or 62 provided on the upper outer surface 6 and / or the outer surface 7 and the non-wrap width portion before the shifting movement is 5A, wrapping Assuming that the width portion is 5B, the non-wrap width portion after shifting is 5a, and the wrap width portion is 5b, marking is applied to the non-wrap width portion 5a where 5A + 5B = 5a + 5b, 5a> 5A, 5b <5B. And a lower plate 1 having 23, 43, or 63.

  According to the present embodiment, the above-described two types of markings are formed instead of the one type of marking conventionally applied to the upper plate in a state where contamination by various bacteria is prevented in the medium of the lower plate. And an upper plate 2 having markings 21, 41 or 61 on the upper outer surface 6 or / and outer surface 7, and a lower plate having a built-in culture and having markings 23, 43 or 63 on the outer surface 5 1 is provided.

According to the present embodiment, the above-described two types of markings are formed instead of the one type of marking conventionally applied to the upper plate in a state where contamination by various bacteria is prevented in the medium of the lower plate. In this way, the management information on the culture contents is marked so that it can be easily visually recognized and distinguished in the upper and lower dishes, and the management of the culture contents can proceed smoothly, causing inconsistencies in the confirmation of the cultured bacteria in the culture experiment. Do not let.

  FIG. 10 is a diagram illustrating a state where the petri dishes are stacked in multiple stages.

  The marked petri dishes 100 are usually stacked in multiple stages and used for a culture experiment. FIG. 10 shows an example in which petri dishes 100 are stacked in five stages.

  Petri dish 100 has upper plate 2 having markings 21, 41 or 61 on upper outer surface 6 and / or outer surface 7, and markings 23, 43 or 63 on outer surface 5 with a built-in culture. And a lower plate 1.

  In FIG. 10, each petri dish 100 has a color marking composed of a color band at a right angle in the circumferential direction, in which the two types of markings described above are provided on the lateral side in the circumferential direction.

  A plurality of petri dishes 100 can be stacked in multiple stages, and when they are stacked, individual color markings are aligned in a line in a direction perpendicular to the circumferential direction. In the case of this example, red, red, red, blue and blue color bands 81 to 85 were formed from the uppermost stage to the lowermost stage.

  According to this example, it is possible to easily confirm the arrangement positions of the markings 23, 43, and 63 when they are stacked in multiple stages.

  FIG. 10 shows an example in which the lower plate 1 is made of a transparent material. In this case, the color bands 81 to 85 can be easily visually recognized from the outside.

  The form of the marking can be classified according to the recognition mark including the risk of the culture, the grouping of the culture, and the management identification of the user. The color markings are color-coded by a plurality of colors, and color-specific recognition markers can be formed according to the types of the markings.

According to the present embodiment,
A set of two cylindrical containers is provided, one of which is a lid serving as an upper plate, the other is a lower plate having a bottom surface and a medium formed on the bottom surface, and the upper portion is the lower portion. When the upper plate is covered with the lower plate, the lower end of the upper plate matches the lower end of the lower plate. The method for managing the culture of the culture using the marked petri dish 100 for the culture of the culture, which is formed so as to be located at the position indicated in FIG.

The method for managing the culture of cultured bacteria using this petri dish is based on the difference H ₁ −H ₂ = h ₀ (h) when the height of the lower plate is H ₁ and the depth of the upper plate is H _{2. 0} includes zero), and the upper plate is shifted with respect to the lower plate while leaving the wrap width h, and the non-wrap width (H ₂ -h) is H _1- (h ₀ + h). From the markings provided on the surface of the upper plate and the markings visible on the outer surface having an outer surface with a non-wrap width of H _1- (h ₀ + h), to provide useful management information to the user. It is characterized by forming.

  The method for managing culture of cultured bacteria using a petri dish is characterized in that the management data is a marking including a marking applied to a surface and a marking having the same portion as the marking applied to the upper plate. And

  100: Petri dish, 1: Lower plate, 2: Upper plate, 3: Bottom of lower plate, 4: Upper end of lower plate, 5: Outside surface of lower plate, 6: Upper surface of upper plate, 7: Outside surface of upper plate , 8: lower end of the upper plate, 5A: non-wrap width portion before the shift movement, 5B: wrap width portion before the shift movement, 5a: non-wrap width portion after the shift movement, 5b ... wrap width portion after the shift movement, 21, 41, 61 or 22, 42, 62 ... marking on the upper plate, 23, 43 or 63 ... marking on the lower plate, 70 ... external force, 81 to 85 ... color band, 110 ... marking device, 111 ... Laser marking system, 112: Inkjet marking system, 113: Sticking marking system.

Claims (7)

A set of two cylindrical containers, one is a lower plate, the lower plate has a bottom surface and an outer surface , and the other is a lid, which is an upper plate, and a medium is formed on the deep bottom surface of the lower plate. A culture vessel, wherein the upper plate is tightly sealed to the lower plate and can be covered, and when the upper plate is tightly sealed to the lower plate , the lower end of the upper plate In a Petri dish for culture cultivation cultivation formed so as to match or be located above the lower end of the outer surface of the lower plate of the lower plate, in a Petri dish marking method of performing marking with a marking device,
Applying an upper plate outer surface marking on the surface of the upper plate,
The upper plate is tightly sealed to the lower plate at a position where the lower end of the upper plate coincides with the lower end of the outer surface of the lower plate or above the lower end, and a wrap state remains between the upper plate and the lower plate. The upper plate is displaced upward by an external force, and the lower end of the upper plate is displaced and moved by an amount corresponding to the amount of movement, so that the upper plate and the lower plate are moved upward from the tightly sealed position. non-lap between, shifting expanded to non-wrapped state at the position of the mobile component upward, the outer surface of the lower dish with non-wrapped expanded state of the Petri dish, characterized in that applying Shitasara outer surface marking Petri dish marking method for marking. In a petri dish marking method for marking a petri dish according to claim 1,
The upper plate is tightly sealed to the lower plate at a position where the lower end of the upper plate is above the lower end of the outer surface of the lower plate, the wrapped state remains between the upper plate and the lower plate, and the upper plate is subjected to an external force. The upper plate is displaced upward by the operation means, and the lower end of the upper plate is displaced and moved by an amount corresponding to the displaced movement to a position above the tightly sealed position. state, shifting to expand to a non-lap at a position of the mobile component upward, markings on Petri dish, characterized in that markings on Shitasara outer surface to the outer surface of the lower dish with non-wrapped expanded state of Petri dish marking method. In a petri dish marking method for marking a petri dish according to claim 1,
A method for marking on a petri dish, wherein the petri dish can be switched between laser marking, marking by a printing method, and marking by sticking. In a petri dish marking method for marking a petri dish according to claim 1,
The lower dish outer surface markings, the back height of the lower tray H _1, deep depth of upper tray when the H _2, the difference of both _{H 1 -H 2 = h 0 (} h 0 contains zero ), The upper plate is displaced upward with respect to the lower plate, and when the wrap width of the wrap state between the upper plate and the lower plate is h, the non-wrap between the upper plate and the lower plate The non-wrap width (H ₂ -h) in the state is represented by H _1- (h ₀ + h), and the non-wrap width in the non-wrap state between the upper plate and the lower plate is H _1- ( h ₀ + h) is a Petri dish Petri dish marking method of applying a marking, characterized in that applied to the outer surface of the lower dish. In a petri dish marking method for marking a petri dish according to claim 4,
Petri dish marking method of applying a marking Petri dish, characterized in that applying Shitasara outer surface markings having a portion to be the same as the Precision outer surface marking the outer surface of the lower dish. A method for marking a petri dish according to claim 4 or 5,
Each petri dish has color markings formed of color bands at right angles in the circumferential direction, which are provided on the lateral side in the circumferential direction of the marking, and a plurality of the petri dishes are stacked in multiple stages, and the individual color markings are A petri dish marking method for marking petri dishes, wherein the petri dishes are aligned in a line at right angles to the circumferential direction. In a petri dish marking method for marking a petri dish according to claim 6,
Corresponding to the recognition level including the risk of the cultured bacteria, the grouping of the cultured bacteria and the management identification of the user, classifying the form of the marking, classifying the color marking into a plurality of colors, and corresponding to the type of the marking. A petri dish marking method for marking a petri dish, characterized by forming a color recognition sign.

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