KR20030008063A - Transfer Process for Aluminum Case - Google Patents

Abstract

PURPOSE: A method for transferring an aluminum container is provided to simply and easily transfer coat various patterns on the surface of aluminum and obtain a transfer layer having beautiful appearance and superior durability by transferring letters, patterns and colors on the surface of the container before finishing it at a certain temperature. CONSTITUTION: In a pretreatment process for coloring a certain portion of the aluminum container by impregnating the body of an aluminum container into a coloring tank, the method for transferring the aluminum container comprises transfer process of firstly baking the colored surface of the aluminum container in a conveyor furnace at a temperature of 120 to 155 deg.C for 15 to 20 minutes after adhering a certain transfer paper onto the colored surface of the aluminum container obtained from the pretreatment process; washing process of washing impurities remaining in the transfer region by the transfer process using water; a special coating film forming process of secondly baking the washed aluminum container in the conveyor furnace at a temperature of 145 to 155 deg.C for 15 to 20 minutes after the washing process so that the transfer paper is adhered onto a product; and an outer surface coating process of baking the coating layer formed product at a temperature of 200 to 220 deg.C after forming a coating layer on the transfer paper adhered product by spraying a special resin onto the transfer paper adhered product after the special coating film forming process.

Description

Transfer Process for Aluminum Containers {Transfer Process for Aluminum Case}

The present invention relates to a method of transferring to the surface of the aluminum container, and more particularly, to the aluminum surface by transferring the letters, patterns, colors, etc. on the colored surface of the aluminum container, kitchenware or kitchen utensils and finishing at a predetermined temperature. The present invention relates to a transfer method of an aluminum container that forms a character, a pattern color, and the like, to obtain a colored layer in which beauty and weather resistance are cultivated.

In general, various methods have been performed to form letters, patterns, and colors on metal products. That is, a method of coating and drying an organic pigment such as an epoxy pigment or a so-called metal ink pigment on the metal itself, and degreasing the metal surface to remove the oxide film on the surface and forming a pattern, color, etc. with the organic pigment. It consists of.

The former method is easily broken by a physical force such as an impact, and cannot be maintained in the initial treatment state by a chemical reaction by moisture, chemicals or the like. In addition, the latter method has a problem that it is difficult to remove the oxide film and to prevent the oxide film from occurring again.

Also, the method of using transfer paper was successful in ceramics but not very satisfactory in metals. Moreover, a method of transferring a letter, pattern, color, etc. using a transfer paper on the surface of a conventional stainless steel material and a stainless steel product has not been attempted. The only attempt was to form shapes using organic pigments on the stainless steel surface, but the adhered organic pigments did not peel off easily or adhere satisfactorily during silk printing, resulting in color or shape deformation and change over time. There is an issue that easily occurs.

The present invention has been made in order to solve such a conventional problem, by transferring a letter, pattern, color, etc. to the colored surface of the aluminum container kitchenware or kitchen utensils and finish at a predetermined temperature in various colors on the aluminum surface It is to provide a transfer method of an aluminum container that can be easily and easily transfer-coated invariant pattern shape, and obtain a transfer layer having a beautiful appearance and durability.

The present invention for achieving the above object is a pre-treatment step of impregnating the body of the aluminum container in the coloring tank to color a predetermined portion, after attaching a predetermined transfer paper to the colored surface of the aluminum container obtained by the pretreatment step, the conveyor Transfer process for primary firing (heat treatment) for 15 to 20 minutes at 120 ° C. to 155 ° C. in the furnace, washing process for cleaning impurities remaining in the transfer area by the transfer process, and 145 in a conveyor furnace after the washing step. Secondary firing at 15 ° C. to 155 ° C. for 15-20 minutes to form the coating layer by spraying the special resin after the special film forming process and the special film forming process to deposit the transfer paper on the product. The secondary firing involves a surface coating process.

Here, a predetermined pad printing process is performed on the colored surface of the aluminum container obtained by the pretreatment step, followed by a washing step, followed by a special film forming step and an outer surface coating step. The transfer process may be directly performed on the surface of the container, followed by a washing process followed by a special film forming process, followed by electrodeposition to form a color, and a surface coating process.

1 is a process chart according to the present invention,

2 is another process diagram of the present invention.

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

1 shows a process sequence according to the present invention.

As shown in Figure 1, the transfer method of the aluminum container of the present invention, the pre-treatment step of washing the surface of the body for coloring the aluminum container, impregnated in the coloring tank to color a predetermined portion, and the pre-treated aluminum container Transfer process to transfer to the colored surface of the surface, washing process to remove impurities from the transfer site after the transfer process, special film forming process to deposit the transfer site after the cleaning process, and coating the special resin on the special film forming site It is made by surface coating process.

The pretreatment step is a pretreatment step in which a foreign material on the surface of an aluminum container is removed by a known degreasing, etching, and neutralization method, and the aluminum container is impregnated into a coloring tank to color only a predetermined part. It is a preparatory step to carry out.

The transfer process attaches a predetermined transfer paper to the colored surface of the aluminum container obtained by the pretreatment process, and then calcinates the transfer paper first at 120 ° C. to 155 ° C. for 15 to 20 minutes in a conveyor furnace to attach the transfer paper to the film paper. When symbols, letters, figures, etc. are expressed in various colors, release paper is attached to the film as an adhesive layer for protection of patterns while facilitating handling and storage. Here, the release paper is removed and transferred.

When the transfer process is performed at 120 ° C. or lower, the transfer machine may peel off, and at 155 ° C. or higher, the transfer paper may be discolored or pressed.

In the washing process, impurities, such as adhesives and foreign substances, which remain in the transfer region by the transfer process are sprayed with washing water. This cleans the transfer part to achieve a beautiful state.

The special film forming process is to improve the adhesiveness of the transfer paper, and after the washing process, secondary firing is performed at 145 ° C to 155 ° C for 15 to 20 minutes in the conveyor furnace.

In the special film forming process, if the drying of the coating film is less than 145 ° C., sufficient drying is not achieved. If the coating film is 155 ° C. or higher, yellowing of the transfer paper causes yellowing and the ground color of the pattern is changed, thereby making it impossible to obtain a good finished product.

The surface coating process is a process of coating a special resin to protect the transfer site, and after the special film forming process by spraying the special resin to form a coating layer and the third firing at 200 ~ 220 ℃.

In the final step, the surface coating process is dried at 200-220 ° C. for 5-10 minutes to induce a protective film of the transfer paper.

The aluminum air that has passed through the surface coating process as described above has completed the intended transfer of the present invention.

On the other hand, in carrying out the present invention, a predetermined pad printing step is performed on the colored surface of the aluminum container obtained by the pretreatment step, followed by a washing step, followed by a special film forming step and an outer surface coating step. In this case, it is possible to obtain an excellent work process compared to the method of using a transfer paper.

In carrying out the present invention, the transfer process is immediately performed on the surface of the non-colored aluminum container as shown in FIG. 2, followed by the washing process and the special film forming process, followed by the formation of color by electrodeposition and the surface coating process. In this case, since the electrodeposition state obtained in the coloring process should be made so that the transferred pattern appears, the workability is lowered, but the durability is excellent.

The aluminum container made by the above-described method can simply and easily color the pattern of the desired color on the surface of the aluminum container of kitchenware or kitchen utensils and household goods, and has excellent decorative effect and enables the production of various patterns. .

As described above, the present invention provides an effect of easily and easily coloring various colored patterns by using transfer paper or pad printing on the surface of the aluminum container to obtain a coloring and protective layer having excellent aesthetics and weather resistance of the container.

Claims (3)

In the pretreatment step of impregnating the body of the aluminum container in the coloring tank to color a predetermined portion, A transfer step of attaching a predetermined transfer paper to the colored surface of the aluminum container obtained by the pretreatment step, and then first firing at 120 ° C. to 155 ° C. for 15 to 20 minutes in a conveyor furnace; A washing step of washing the impurities remaining in the transfer area by the transfer step with water; A special film forming process of secondary baking at 145 ° C. to 155 ° C. for 15 to 20 minutes in the conveyor furnace after the washing step to deposit the transfer paper on the product; After the special film forming process by spraying a special resin to form a coating layer and the surface coating process of firing at 200 ~ 220 ℃ characterized in that the transfer method of the aluminum container. The method of claim 1, A predetermined pad printing step is performed on the colored surface of the aluminum container obtained by the pretreatment step, followed by a washing step, followed by a special film forming step and an outer surface coating step. Way. The method of claim 1, A transfer process is performed immediately on the surface of an uncolored aluminum container, followed by a washing process followed by a special film forming process, followed by forming a color by electrodeposition and carrying out an outer surface coating process. .