KR20130105217A

KR20130105217A - Printed layer formed on the surface of the yellowing / discoloration preventing the evaluating panels, and its manufacturing method

Info

Publication number: KR20130105217A
Application number: KR1020120050697A
Authority: KR
Inventors: 성근배
Original assignee: 성근배
Priority date: 2012-03-15
Filing date: 2012-05-14
Publication date: 2013-09-25

Abstract

The present invention relates to a surface printing method and a product for expressing the texture of wood on a plate material made of wood, such as veneer sheet or plywood and heavy fiber board (MDF), more specifically, natural wood grain on the surface of the plate material The plate-like material which prevents discoloration / discoloration of the print layer formed on the surface to prevent discoloration / discoloration of ultraviolet rays or volatile solvents by stably printing and fixing the printed layer formed to express a pattern, and a manufacturing method thereof It has a purpose to provide.
As a solution of the present invention for achieving the above object, the printing method for forming a printing layer on the surface of the plate-like material is printed by the sublimation transfer method, and the printing ink for the sublimation transfer using a dye, By providing a polyester film to stably form a printing layer on the surface of the plate-like material, the polyester film can achieve the object of the present invention by functioning as a protective film of the printing layer.
As described above, the present invention uses a polyester film to make the sublimation transfer printing dye most stable when the sublimation transfer printing is performed in order to express the grain pattern on the surface of the plate material, and thus the polyester film functions as a protective layer of the printing layer. In addition, it is a useful invention which can prevent discoloration / discoloration by a volatile solvent.

Description

Printed layer formed on the surface of the yellowing / discoloration preventing the evaluating panels, and its manufacturing method

The present invention relates to a surface printing method and a product for expressing the texture of wood on a plate material made of wood, such as veneer sheet, plywood and heavy fiber board (MDF), and more specifically, sublimation transfer technique on the surface of the plate material To prevent the discoloration and discoloration of the printing layer formed on the surface to prevent discoloration and discoloration of organic dye solvents such as ultraviolet (UV) and acetone in printing, and a method of manufacturing the same. It is about.

In general, the plate material made of wood is used veneer sheet, plywood, and heavy fiber board (MDF), the plate material is widely used in general architectural phenomena such as interior finishing materials, desks and doors, and in particular, veneer sheet is used for furniture and It is widely used as a finishing material in indoor interiors.

In other words, in interior decoration, it is finished as a wood grain veneer sheet, so that it has a luxurious atmosphere and a nature-friendly feeling, and in this situation, a veneer sheet or plywood and a heavy fiber board to have a low-cost veneer It is a situation that is used to print a wood grain pattern on the situation and many of these inventions have been applied for.

In addition, as a method of printing on the surface of the plate material can not have a wood grain texture in the general printing method (silk printing, etc.), by using a sublimation transfer printing method on the surface of the plate material to try to show a more natural wood grain pattern It is true.

However, in the printing method of the conventional plate-like material as described above, because the sublimation transfer dye for forming the printing layer is not compatible with the coating layer formed on the surface of the plate-like material and has a heterogeneous feeling, it is necessary to use ultraviolet rays to dry in the final stage of manufacturing. UV) There was a problem that discoloration / discoloration of the printed layer printed on the surface of the plate-like material when passing through the drying apparatus, a natural discoloration / discoloration occurs by sunlight even after shipping the product.

In addition, as shown in FIG. 1, when the surface of the plate material is wiped with a volatile solvent such as acetone, there is a problem of discoloration / discoloration due to the volatile solvent. Forming a layer, but the protective layer has the purpose to prevent the occurrence of gloss (matte, gloss) and scratches on the surface of the plate material, it was not possible to prevent discoloration / discoloration of the print layer due to continuous UV exposure. As a result, there is a problem that cannot be prevented from discoloration / discoloration due to the volatile solvent as it is vulnerable to the volatile solvent.

In addition, the printing method according to the conventional method is merely printing on a flat surface, and thus cannot be applied to a bent molding molding, and the printing of a flat portion and a curved portion in a furniture such as an interior or a desk is difficult. There was a problem of not having continuity.

The present invention has been invented to solve the above problems, the printing layer formed to express a natural wood grain pattern or various patterns on the surface of the plate material to be stably printed and fixed by ultraviolet or volatile solvents The present invention provides a plate-like material which prevents discoloration / discoloration of a print layer formed on a surface expressing a continuity of a pattern by preventing discoloration / discoloration and printing the curved area by sublimation transfer method. Has a purpose.

As a solution of the present invention for achieving the above object, the printing method for forming a printing layer on the surface of the plate-like material is printed by the sublimation transfer method, and the printing ink for the sublimation transfer using a dye, By providing a polyester film to stably form a printing layer on the surface of the plate-like material, the polyester film can achieve the object of the present invention by functioning as a protective film of the printing layer.

In an embodiment of the present invention, when the sublimation transfer, a polyester film that stably absorbs the sublimation transfer dye is attached to the plate-like material or coated on the surface of the plate-like material with a liquid polyester film and then subjected to sublimation transfer printing. The printing dye used for the sublimation transfer to the polyester film in the state so that the printing dye and the polyester film are integrated, thereby achieving the object of the present invention to prevent discoloration / discoloration due to ultraviolet rays or volatile solvents.

According to another embodiment of the present invention, after printing by sublimation transfer to a polyester film stably absorbing the sublimation transfer dye, the printed polyester film is attached to a plate-like material to prevent discoloration / discoloration of the printing layer To achieve this.

In another embodiment of the present invention, the polyester film stably absorbing the sublimation transfer dye is made to be bent in a separate molding frame and then printed on the polyester film by sublimation transfer and attached to the curved molding to form an uneven shape. It is possible to achieve the object of the present invention to form a printing layer in the molding having a furnace curve and to prevent discoloration / discoloration of the printing layer.

As described above, the present invention uses a polyester film which makes the sublimation transfer printing dye to be the most stable state when the sublimation transfer printing is performed in order to express the wood grain pattern on the surface of the plate material. It is a useful invention which can prevent discoloration / discoloration by ultraviolet rays or volatile solvents, and can also print by sublimation transfer to moldings having irregularities in the form of irregularities.

1 is a test result of testing the volatile solvent of the conventional plate material.
2 is a flowchart showing a manufacturing method of a first embodiment according to the present invention;
3 is a cross-sectional view of the sublimation transfer printing state of the plate-like material of the first embodiment according to the present invention.
4 is a flowchart showing a manufacturing method of a second embodiment according to the present invention;
5 is a flowchart showing a manufacturing method of a third embodiment according to the present invention;

Hereinafter, the present invention will be described in detail with reference to the embodiments carried out with reference to FIGS. 2 to 6.

2 and 3 are a first embodiment according to the present invention, Figure 2 is a flow chart showing a sublimation transfer printing method of the plate material, Figure 3 is a cross-sectional view of the printing state of the plate material, veneer, plywood and heavy fiber board (MDF) A pretreatment process of forming a polyester film 2 layer on the surface of the plate-like material 1 such as;

A printing step of forming a printing layer (3) by sublimation transfer printing on the surface of the polyester film (2) formed on the surface through the pretreatment process to express a grain pattern at a high temperature of 180 ~ 220 ℃;

And a post-treatment step of cooling and drying the printed layer 3 printed on the surface through the printing process.

At this time, as a method of forming the polyester film 2 layer in the pretreatment step, a method of attaching a polyester film 2 formed of a thin film, and a liquid polyester having a constant thickness on the surface of the plate-like material 1 Since the coating method can be performed, it is preferable to attach the polyester film 2 formed of a thin film, in terms of treatment process and facility cost.

Therefore, as a method of attaching the polyester film 2 to the surface of the plate-like material 1 as described above, after applying the urethane-based adhesive to the surface of the plate-like material 1 and then positioning the polyester film 2 Dry laminating method of high pressure bonding by press or hot sheet is applied to the surface of plate member 1, and then plate member 1 and polyester film 2 are simultaneously passed through the pressing roll rotating under high pressure / high temperature. In this invention, even if the polyester film 2 is affixed on the surface of the plate-shaped material 1, it does not matter even if it adheres to the surface of the plate-like material 1 using the above method.

In the printing process, as shown in FIG. 3, the printing layer 3 is formed on the plate member 1 having the polyester film 2 attached thereto by sublimation transfer. The environment performs the printing process at a high temperature of 180-220 ° C.

At this time, since the working environment is a high temperature of 180 ~ 220 ℃ the molecular structure of the polyester film (2) attached to the surface of the plate-like material (1) is decomposed at a high temperature, the dye value for the sublimation transfer polyester film ( By penetrating into 2), the printing layer 3 is integrated with the polyester film 2, thereby preventing discoloration / discoloration of the printing dye due to ultraviolet rays or volatile solvents.

That is, the molecules of the polyester film 2 attached to the surface of the plate material 1 in the high temperature state of 180 ~ 220 ℃ during sublimation transfer printing to form a variety of patterns on the surface of the plate material (1) Due to the weakening of the binding force and the printing dye penetrating into the gap, the printing dye is integrated with the polyester film (2), and after cooling in the post-treatment process, the molecular structure of the polyester film (2) is restored to its original state. Due to this, the printing layer 3 is formed inside the polyester film 2.

Therefore, the printing dye due to ultraviolet light is evaporated, but because the printing dye is trapped in the polyester film (2) it is possible to prevent discoloration / discoloration due to evaporation of the printing dye, polyester film (2) is the same as acetone Because it is resistant to volatile solvents, even if you wipe the surface with volatile solvents, the printing dyes constituting the print layer 3 will not be wiped out so that discoloration / discoloration will not occur.

In addition, the latter method of coating the liquid polyester on the surface of the plate material with a constant thickness is applicable to the concave-convex shape with bone and acid on the surface of the plate material. The polyester is sprayed and coated on the surface of the plate member 1 through a sprayer or an applicator so that the polyester has a constant thickness (about 0.2 to 0.4 mm) on the surface of the plate member, and then the plate coated with the polyester When the upper material 1 is cooled, and then the printing layer 3 is formed by sublimation transfer printing on the upper plate 1, the sublimation transfer printing dye is integrated with the polyester as described above.

Accordingly, when the polyester in the liquid state is sprayed on the surface of the plate member 1, a layer of the polyester film 2 is formed along the uneven curves expressed on the surface of the plate member 1, and sublimation transfer thereon. When the printing layer 3 is formed, the printing layer 3 soaks into the polyester film 2 layer as mentioned above, so that the polyester film 2 layer and the printing layer 3 are integrated, and at this time, the printing layer 3 The printed pattern shape represented by the layer 3 is represented by the pattern of the flat part and the curved part.

At this time, according to the method obtained through the first embodiment, the polyester film 2 shrinks and expands when the polyester film 2 is attached to the upper portion of the plate-like material 1 and then sublimed to high temperature. Shrinkage occurs during cooling after printing, and the plate-like material 1 having the polyester film 2 attached thereon shrinks and expands in units smaller than the polyester film 2, resulting in a difference in shrinkage. .

That is, when the present invention is applied to the plate-like material 1 in a thin state such as sheet paper, a phenomenon in which the end portion is curled due to the shrinkage rate occurs. In order to prevent such a phenomenon, as shown in FIG. Suggest.

In the second embodiment, which is another embodiment of the present invention, unlike the first embodiment, the polyester film 2 is printed by sublimation transfer to integrate the polyester film 2 and the print layer 3, and the print layer 3 is The integrated polyester film 2 was attached to the plate-like material 1 to solve the problem arising in the first embodiment.

That is, when the sublimation computerized printing layer 3 is formed on the polyester film 2, the polyester film 2 completes the contraction and expansion due to the high temperature generated during the sublimation transfer, and then the plate material 1 Attaching to the film prevents the drying phenomenon caused by the shrinkage difference between the polyester film 2 and the plate-like material 1.

In addition, the present invention is applied to a product having a large difference in curved portions, that is, cannot be expressed in the first or second embodiment, and the printed layer 3 is to be formed on the exterior surface of the product by sublimation transfer printing. Invented for application.

As shown in FIG. 5, the third embodiment of the present invention applies the polyester film 2 through the mold 20 so as to have the same shape as the appearance of the product to form the printed layer 3 by sublimation transfer. ) To form a printing layer (3) by sublimation transfer on the surface of the formed polyester pilung (2) and then attach it to the surface of the product (10).

The third embodiment as described above is mainly applicable to products having various bends rather than products in a flat state such as metals, synthetic resins, and stones, and the pattern has an advantage of having continuity.

In addition, in the state where the print layer 3 is formed by sublimation transfer printing as in the above embodiments, a synthetic resin coating layer may be formed to prevent the surface from being polished or polished such as matte or gloss.

One ; Plate Material 2: Polyester Film 3: Printed Layer

Claims

The polyester film (2) is coated on the surface of the plate material (1) such as veneer, plywood, and heavy fiber board (MDF), and then the urethane-based adhesive is applied to the surface of the plate material (1). The plate-like material (1) and the polyester film (2) are simultaneously applied to a dry laminating method of high-pressure pressing with a post press, or a hot roll applied to the surface of the plate-like material (1) and then rotating in a high pressure / high temperature state. A pretreatment step of attaching by pressing while passing;
A printing process of forming a print layer (3) by sublimation transfer printing on the surface of the polyester film (2) attached to the surface through the pretreatment process to express a grain pattern at a high temperature of 180 to 220 ° C;
And a post-treatment step of drying the printed layer (3) printed on the surface through the printing process.

The method of claim 1,
In the pretreatment process, a polyester film in a liquid state is coated on the surface of the plate member 1 in a spray spraying method with a thickness of 0.2 to 0.4 mm to form a polyester film 2 layer on the surface of the plate member 1. A method of manufacturing a plate-like material which prevents discoloration / discoloration of a print layer formed on a surface, characterized by performing a post-printing process and a post-treatment process.

A pretreatment step of attaching the polyester film 2 to the surface of the plate member 1 such as veneer, plywood, and heavy fiber board (MDF);
A printing process of forming a print layer (3) by sublimation transfer printing on the surface of the polyester film (2) attached to the surface through the pretreatment process to express a grain pattern at a high temperature of 180 to 220 ° C;
It is manufactured through a post-treatment process of drying the printing layer (3) printed on the surface through the printing process,
In the printing process, the printing layer 3 is formed by sublimation transfer on top of the plate-like material 1 to which the polyester film 2 is attached, and the dye for sublimation transfers into the polyester film 2, thereby printing dye and poly The plate-shaped material which prevented discoloration / discoloration of the printing layer formed in the surface characterized by the integration of the ester film (2).

Printed on the polyester film 2 by sublimation transfer, the polyester film 2 and the printing layer 3 were integrated, and the polyester film 2 having the printing layer 3 integrated thereon was attached to the plate-like material 1. A plate-like material which prevents discoloration / discoloration of a printing layer formed on the surface.

5. The method of claim 4,
Sublimation transfer is performed by molding the polyester film 2 through the mold 20 so as to have the same shape as the appearance of the product to form the print layer 3 by sublimation transfer. The plate-like material which prevents discoloration / discoloration of the printing layer formed on the surface, characterized in that after forming the printing layer (3) to the surface of the product (10).