KR200289949Y1 - In border home complete history printing done melamine courage - Google Patents

Abstract

The present invention relates to a melamine container transfer-printed in a rim groove, and convex and concave and convex irregularities having a width of 2-5mm in depth of 0.5-1mm are formed on the upper and lower edges of the container mold of the melamine compression molding machine to complete the molded product under preheat compression molding. The transfer paper is placed on the grooved edge and finally the surface coating agent is compressed and finally applied to provide a molded product that does not peel off the pattern even when used for a long time without damage to cleaning and scratching, and that the fine groove is shallow so that no foreign matter or germ propagation occurs. Its purpose is to.

Description

Melamine courage printed on melamine courage {In border home complete history printing done melamine courage}

Melamine containers are cheaper than porcelain containers, and they are often used for business and food service due to their convenience in handling such as being light and not easily broken.

However, melamine containers have problems such as the level of business use, despite their excellent hardness, heat resistance, acid resistance, wear resistance, and simplicity of the manufacturing process itself.

In the field of processing melamine resins as thermosetting resins, the field of molding materials has been passed down to almost regular form.

There are many methods for manufacturing, but the most widely used method is to extract urea by polymerization reaction of ammonia and carbon dioxide and make synthetic pure melamine from urea and ammonia.

Here, melamine and formaldehyde are mixed at 1: 1.4-2 and pulp is synthesized to be used as a molding resin.

Melamine coating agent, a thermosetting coating agent, is powdered resin which is mixed with pure melamine and formaldehyde, alkyd, epoxy, polyester, acrylic resin, etc. by alcohol and alkoxylation reaction for affinity control.

When molded by compression molding, the raw material and coating agent are molded into one.

The process of manufacturing a container using a molding material is as follows.

In general, the method of manufacturing melamine molded products is to put melamine raw material into a preheater by putting an appropriate amount in a preheater into a preheated mold by preheating for 20-50 seconds at 80-110 degrees for 15-60 seconds. Compression molding is carried out for 30-60 seconds at a pressure of 80-350kg / cm2 at a temperature of 130-170 degrees.

Put the inside of the mold and heat-compress it to form a melamine resin main body.If necessary, put the transfer paper with the adhesive layer on the lower side and the printing layer on the upper side, heat-compress and apply the melamine powder coating on the upper side, and then compress the molding. To complete the melamine coating layer formed.

The final remaining task in product development is design, so design is very important in terms of product quality, diversification and differentiation.

Design is an essential means of management and has reached a very important stage in determining the success or failure of a company.

Unlike general convenience products, melamine products are highly interested in product quality, price, and characteristic design before purchase, and they want to compare and evaluate products. It is an industry that needs to maintain high quality because it is a pre-sale.

In general, as a method of forming a design on the surface of the melamine container, transfer paper is most widely used.

In other words, it is divided into a process of manufacturing a transfer paper for producing a cinnabar of the design to be formed on the surface of the container, a design transfer process for forming a design layer in close contact with the surface of the melamine container of the transfer paper, and a process of coating the transferred melamine container.

Looking at the process of manufacturing the transfer paper of the design to be formed on the surface of the container, the original or selected design is color-decomposed by the primary color separation method, and a film is produced for each of the decomposed primary colors and a screen printing plate is produced for each primary color.

However, the work of attaching the transfer paper to the container must be done by positioning it with hands that require considerable skill.

Such a melamine resin container has a printing layer formed under the upper coating layer, and the method of transferring printing inside the container is a problem of the transfer printing of the area in contact with food. There is a problem that the life of the product is shortened because the design of the product is scratched by scratching.

In the resin tableware and its manufacturing method having a home frame, the design forming method of deeply digging the rim of the tableware and injecting color ink into the thermosetting is advantageous in that it is not damaged by general washing and scratching, but there is a foreign material in the fine groove. There is a problem that is pinched or bacteria breed.

In addition, according to the process of injecting ink onto the surface coating agent applied to the molded product in the process and thermosetting, there is a problem that the portion designed by the color ink is easily peeled off when the foreign matter inside the groove is washed.

The present invention is to solve the problems as described above to form convex and concave and convex concave and convex irregularities of 2-5mm depth 0.5-1mm in the upper and lower edges of the container mold of the melamine compression molding machine to complete the molded product under the preheat compression molding The transfer paper is coated on this fine edge and finally the surface coating agent is compressed and coated to provide a molded product that does not peel off even after long-term use without damage to cleaning and scratching, and that the fine groove is shallow so that no foreign matter or bacteria propagation. There is a purpose.

Figure 1 (a) is a flow chart illustrating a transfer printing forming process in the rim groove of the present invention melamine container Figure 1 (b) is a schematic cross-sectional view of the present invention melanin mold

Figure 2 is a perspective view of the surface-coated melamine container transfer-printed in the rim groove of the present invention

Figure 3 is a cross-sectional view of the surface coating by transfer printing to the edge groove of the present invention

[Explanation of symbols on the main parts of the drawings]

100: border groove 200: transfer printing layer

300: surface coating layer 400: container

The method of forming a transfer print on the melamine container rim groove according to the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 (a), (b) is a flow chart and a cross-sectional view showing the process of forming the transfer printing formed in the rim groove of the melamine container of the present invention 2 to 5mm wide in the upper and lower edges of the container mold (3) of the melamine compression molding machine Concave and convex portions of the convex shape 1 and the concave shape 2 of 0.5-1 mm are formed to transfer the molding material 10 to the preheated 20 compression molding 30 to complete the molded product and transfer printing to the grooved edge portion 100. It is a flowchart and a cross-sectional view of a mold, characterized in that the molded article 60 is completed by laying the paper 40 and finally compressing and applying the surface coating agent 50.

Figure 2 is a perspective view of the melamine container surface coated with a transfer printing paper attached to the rim groove according to the present invention

Figure 3 is a cross-sectional view of the surface coating by transfer printing to the edge groove of the present invention

The surface coating agent 50 used in the present invention is a transparent coating agent, and the pure melamine is mixed with a filler and a crosslinking agent in terms of the material properties of the melamine molding material 10 and the material properties of the coating material.

In other words, the adhesion between the material and the coating is separated by impact, scratching, and abrasion, so that it does not peel off or fall off.

Compression molding 30 is a method of separating the irregularities of the two-part mold and filling the molding powder in the cavity in the preheated mold.

When the mold is closed, the U and the recess are engaged with each other and pressure is applied thereto.

Normal pressure is applied at 80-350kgf / cm2.

Molding is performed using a compression device consisting of a hydraulically adjustable cylinder and a ram in the cylinder.

The upper and lower molds 3 are manufactured by installing a concave-convex part that can be matched with a convex shape (1) and a concave shape (2) to form a groove along the edge portion by making a mold so that a slight groove can be formed on the edge of the molded product. do.

The overall process is as follows.

1. Set the desired mold in the compression molding machine into one set of U part and ∩ part, and set the press temperature to the desired temperature (usually around 200 degrees).

2. When the temperature of press reaches the set temperature, put the resin powder which is preheated and soft like rice cake in U placed on one side of press.

3. Close the wheels, insert them between presses, and compress for 30-60 seconds at 80-350kgf / cm2.

4. Then spread the transfer paper on the molded rim groove.

The transfer printing paper sticks easily due to the heat of the molded product.

5. Place a small amount of powdery surface coating on the U side, close the lid and compress it for 10-30 seconds to 80-350kgf / cm2 to complete the final molded product.

From the above description, those skilled in the art can realize that various changes and modifications can be made without departing from the technology of the present invention.

As described above, the present invention lays down the transfer paper on the grooved rim, and then heat-adheses the surface coating agent by compressing and coating the surface coating agent without peeling off the pattern even after long-term use without damaging the cleaning and scratching. It is effective to provide molded products that are not prone to foreign substances or bacteria.

Claims (1)

Convex and concave and convex irregularities of 2-5mm in depth and 0.5-1mm in depth are formed on the upper and lower edges of the melamine compression molding machine, and the molding material is completed under preheat compression molding, and the transfer paper is laid on the grooved edge. Melamine container transfer-printed in the rim groove, characterized in that the coating coating compression.