JP-2026075745-A - Saggered container with a QR code and method for attaching a QR code to the saggered container.

Abstract

[Problem] The problem addressed by the present invention is to provide a saggar with a two-dimensional code that allows the two-dimensional code to be read, reduces the occurrence of defective products, and facilitates mass production, as well as a method for attaching a two-dimensional code to the saggar. [Solution] The saggar 1 with a two-dimensional code of the present invention has a ceramic label adhesion base material layer 3 formed on a required part of the saggar body 2, and a ceramic label with a two-dimensional code 4 fixed to the surface of the ceramic label adhesion base material layer 3. [Selection Diagram] Figure 1

Inventors

• 永水 廣太
• 五十嵐 広大

Assignees

• 明智セラミックス株式会社

Dates

Publication Date

20260511

Application Date

20241023

Claims (4)

1. A saggar with a two-dimensional code, characterized by having a ceramic label adhesion base layer formed on the required parts of the saggar body, and a ceramic label with a two-dimensional code fixed to the surface of the ceramic label adhesion base layer.
2. The ceramic label adhesion base material constituting the ceramic label adhesion base material layer is formed by adding a binder to a mixed powder containing 5-40% by weight of alumina powder, 5-20% by weight of silica powder, 0-70% by weight of spinel powder, and 5-30% by weight of cordierite powder to form a slurry, as described in claim 1 for the saggar with a two-dimensional code.
3. A method for attaching a two-dimensional code to a saggar, characterized by comprising: a surface preparation step of forming a base material layer for ceramic label adhesion on a required portion of the saggar body; a label application step of attaching a ceramic label with a two-dimensional code to the surface of the ceramic label adhesion base material layer; and a firing step of firing the saggar body to which the ceramic label with the two-dimensional code has been attached to fix the ceramic label with the two-dimensional code to the saggar body.
4. The method for attaching a two-dimensional code to a sagger according to claim 3, wherein the ceramic label adhesion base material constituting the ceramic label adhesion base material layer is formed by adding a binder to a mixed powder containing 5 to 40% by weight of alumina powder, 5 to 20% by weight of silica powder, 0 to 70% by weight of spinel powder, and 5 to 30% by weight of cordierite powder to form a slurry.

Description

This invention relates to a saggar with a two-dimensional code attached, and a method for attaching a two-dimensional code to a saggar. Traditionally, two-dimensional codes (e.g., QR codes®, barcodes, data matrices, etc.) have been attached to products for individual item management. However, these two-dimensional codes have not been used on saggars (containers used for firing ceramic bodies) used at high temperatures because it is difficult to attach them in a readable manner. On the other hand, regarding individual management of saggars, several identification structures have been proposed, including one for firing saggars in which a groove constituting an identification code is formed in a predetermined part of the saggar (Japanese Patent Publication No. 6-94375), and another for firing saggars in which a reaction-preventing undercoat mainly composed of zirconia is formed on at least the label-forming surface of the saggar body made of ceramic, and an identification mark mainly composed of iron oxide powder with a purity of 90% or more is formed on the undercoat. (Japanese Patent Publication No. 6-42884) However, when two-dimensional codes were attached to saggars and fired, as shown in Figure 7, the two-dimensional codes would peel off due to the uneven surface of the saggar body; as shown in Figure 8, insufficient adhesion between the two-dimensional code and the surface of the saggar body would allow air to enter the gaps, causing bubbles to burst; and as shown in Figure 9, the two-dimensional codes would dissolve due to poor penetration into the surface of the saggar body, resulting in a large number of unreadable defective products. Furthermore, the identification structures for firing saggars described in Japanese Patent Publication No. 6-94375 and Japanese Patent Publication No. 6-42884 presented problems in terms of mass production. Japanese Patent Application Publication No. 6-94375Japanese Patent Application Publication No. 6-42884 This is a partial cross-sectional view of one embodiment of a saggar with a two-dimensional code according to the present invention.This is a front view photograph of one embodiment of the two-dimensional code-equipped saggar of the present invention.Figure 2 is a close-up photograph of the two-dimensional code (QR code® registered trademark portion) of the saggar with a two-dimensional code shown.This is a manufacturing process chart for one embodiment of the method for attaching a two-dimensional code to a sagger according to the present invention.This table illustrates the defect rate of the two-dimensional code-equipped saggars in the example.This table explains the defect rate of the comparative example, a saggar with a two-dimensional code.This is a photograph illustrating a defective example of a saggar with a QR code.This is a photograph illustrating another example of a defective saggar with a QR code.This is a photograph illustrating another example of a defective saggar with a QR code. In this invention, the two-dimensional code-attached saggar 1 has a ceramic label adhesion base layer 3 formed on a required part of the saggar body 2, and a two-dimensional code-attached ceramic label 4 fixed to the surface of the ceramic label adhesion base layer 3. This allows the two-dimensional code to be readable, reduces the occurrence of defective products, and facilitates mass production. This invention realizes a two-dimensional code-attached saggar 1 and a method for attaching the two-dimensional code to the saggar. To solve the above problems, a saggar with a two-dimensional code is provided, comprising a ceramic label adhesion base layer formed on a required part of the saggar body, and a ceramic label with a two-dimensional code fixed to the surface of the ceramic label adhesion base layer, wherein the ceramic label adhesion base material constituting the ceramic label adhesion base layer is formed by adding a binder to a mixed powder containing 5 to 40% by weight of alumina powder, 5 to 20% by weight of silica powder, 0 to 70% by weight of spinel powder, and 5 to 30% by weight of cordierite powder to form a slurry (Claim 1). Furthermore, a method for attaching a two-dimensional code to a sagger that solves the above problems is a method for attaching a two-dimensional code to a sagger, comprising a surface treatment step of forming a base material layer for ceramic label adhesion on a required part of the sagger body, a label application step of attaching a ceramic label with a two-dimensional code to the surface of the base material layer for ceramic label adhesion, and a firing step of firing the sagger body to which the ceramic label with the two-dimensional code has been attached to fix the ceramic label with the two-dimensional code to the sagger body, wherein the base material for ceramic label adhesion constituting the base material layer for ceramic label adhesion is formed by adding a binder to a mixed powder containing 5 to 40% by weight of alumina p