KR101029290B1 - Manufacturing method for soft resin product using coloring by impregnation - Google Patents

Abstract

PURPOSE: A method for manufacturing flexible resin forming matter used for impregnation coloring is provided to ensure excellent moldability and color durability due to clear color and surface process. CONSTITUTION: A method for manufacturing flexible resin forming matter used for impregnation coloring comprises the steps of: laminating a resin sheet, a release agent layer(12) and a color transfer layer(13) in order from the lower part to the upper part to prepare a printing layer having predetermined pattern and colors; pouring a thermosetting soft resin(20) into the upper part of the printing layer; and curing the soft resin so that the pattern and color of printing layer is impregnated in the soft resin.

Description

Manufacturing method for soft resin product using coloring by impregnation}

The present invention relates to a method of manufacturing a flexible resin molding using impregnated coloring, and more particularly, to a printing layer is prepared by applying a release agent between the resin sheet and the color transfer layer, and the pattern and color of the printing layer toward the soft resin. By impregnating coloring, it is related with the manufacturing method of the soft resin molding which is excellent in moldability and excellent color sustainability by surface treatment.

In general, various resin materials are light in weight and have excellent moldability, and are applied to various household articles, decorative articles, building materials, and electronic materials.

In particular, various attempts have been made to have various colors while the resin has a predetermined form in order to increase the visual effect according to the use.

Existing three-dimensional moldings are made of wood or gypsum in a certain shape having a three-dimensional shape, and then poured into a patterned rubber mold to cure the resin and then separated from the rubber mold, a fluid pigment having a plurality of colors. The method of giving the visibility by painting the parts by hand manually was used. Since the three-dimensional moldings draw colors manually on the resin surface, manufacturing time and processes are difficult, and there is a high possibility of peeling off the painting by external pressure.

Accordingly, the present inventors have proposed an economically three-dimensional molded article manufacturing method by enhancing the color persistence and simplifying the manufacturing process by impregnating the color of the printing layer with a resin (Korean Patent No. 10-0383028, Korean Patent Registration). No. 10-0256848). However, in both cases, the present invention relates to a solid formed from a hard resin, and the soft resin has a strong adhesive force, making it difficult to separate from the print layer, thereby making it impossible to color by impregnation.

An object of the present invention is to solve the above problems, by applying a release agent between the resin sheet and the color transfer layer to prepare a printed layer and by impregnating and coloring the pattern and color of the printed layer with a soft resin through a curing process, It is an object of the present invention to provide a method for producing a flexible resin molded article having excellent colorability and color persistence, and easy separation of a printed layer from a soft resin after curing, thereby providing a clean surface treatment.

Another object of the present invention is to provide a soft resin molded product molded by the above production method.

The present invention comprises the steps of (a) laminating the resin sheet, the release agent layer and the color transfer layer in order from the bottom to the top to produce a printed layer having a predetermined pattern and color; (b) pouring a thermosetting soft resin on an upper surface of the printed layer; And (c) curing the soft resin such that the pattern and color of the print layer are impregnated with the soft resin.

In the manufacturing method of the present invention, when the soft resin molded article has a three-dimensional structure, in the step (a), the intaglio or embossed mold matching the pattern and color of the printing layer is molded, and the printed layer is compressed to form a three-dimensional structure. The mold can be produced and used.

In the present invention, the thermosetting soft resin may be a silicone resin, an epoxy resin, or a urethane resin. Particularly, in the present invention, when the soft resin is a silicone resin, in the step (a), a printing primer layer may be further laminated on the color transfer layer to further laminate an adhesive primer layer for improving adhesion between the print layer and the soft resin. Can be.

In the present invention, the resin sheet constituting the printed layer may be a PVC resin sheet.

In the present invention, the release agent may include a wax, an acrylate compound and a ketone compound, for example, polyethylene wax 1 to 10% by weight, acrylate oligomer 40 to 60% by weight, acrylate monomer 20 to 40% by weight And it may include 5 to 20% by weight of phenyl ketone.

In the present invention, the adhesive primer layer may include a siloxane compound, a silicate compound, and a titanate compound. For example, 60 to 95% by weight of octamethyltrisiloxane, tetrapropyl orthosilicate 1 15 wt%, butoxybutyl orthosilicate 1-15 wt% and tetrabutyl titanate (Tetrabutyl titanate) may be included in 1-10 wt%.

In the manufacturing method of the present invention, after the step (b), a method of further stacking a molding base layer on the flexible resin may be manufactured by grafting the resin with the base layer of various materials.

In another aspect, the present invention relates to a flexible resin molded article molded by the above production method.

Soft resin molding according to the production method of the present invention is characterized by excellent colorability and excellent surface formability because of the clear color and surface treatment. In addition, the production process is easy and mass production is possible, there is an economic advantage.

Therefore, it can be usefully applied in the manufacture of various interior decoration products, household goods, building materials.

1 shows a printed layer structure according to the present invention.
Figure 2 shows a printed layer and a flexible resin laminate structure according to the present invention.
Figure 3 shows a model in which the soft resin molding is separated from the printed layer according to the present invention.
FIG. 4 illustrates a flexible resin molding having a molded base layer, a flexible resin, a laminated structure of a printed layer, and a molded base layer separated from the printed layer when the molded base layer according to the present invention is applied.

The method of manufacturing a flexible molded article of the present invention comprises the steps of: (a) stacking a resin sheet, a release agent layer and a color transfer layer in order from the bottom to the top to prepare a printing layer having a predetermined pattern and color; (b) pouring a thermosetting soft resin on an upper surface of the printed layer; And (c) curing the soft resin such that the pattern and color of the print layer are impregnated with the soft resin.

Hereinafter, the configuration of the present invention will be described step by step with the drawings.

Step (a): Printed layer  Manufacturing steps

The step (a) is a step of stacking the resin sheet 11, the release agent layer 12 and the color transfer layer 13 in order from the bottom to the top to produce a printed layer 10 having a predetermined pattern and color. , Preparing a printing layer for impregnating and landing with a soft resin (see FIG. 1).

In the present invention, the printed layer is prepared by printing a resin sheet capable of color printing, by applying a release agent on the upper surface of the resin sheet to form a release agent layer, by printing a predetermined pattern and color on it to form a color transfer layer, a resin sheet -Release agent layer-It can be produced to have a laminated structure of the color transfer layer.

In addition, when the soft molded article has a three-dimensional structure, an intaglio or embossed mold matching the pattern and color of the printed layer may be molded, and the printed layer may be compressed to produce a three-dimensional mold. The three-dimensional mold, for example, may be used to form a curved portion that matches a predetermined pattern and color formed on the printing layer by using a metallic mold, and the printing layer may be formed on the curved portion using a bonding and adsorption technique. It can be left in a compressed state.

As the resin sheet usable in the present invention, various kinds of resin sheets known in the art may be used, and for example, PVC (Polyvinyl chloride) resin sheets may be used. In addition, the resin sheet may be manufactured and used in a mold form so as to fill the soft resin, or a separate container may be prepared and used to mount the resin sheet.

In the present invention, the release agent layer is characterized by containing a wax component. Unlike conventional hard resins, the soft resins have strong adhesive strength, and thus, the print layers are not properly separated after contacting and curing the print layer. Therefore, in the step, by applying a release agent containing a wax between the resin sheet and the color transfer layer at the time of manufacturing the printed layer, it is easy to separate the printed layer from the soft resin after the curing process.

In this case, the release agent component may include a wax, an acrylate compound and a ketone compound, and may include, for example, polyethylene wax, an acrylate oligomer, an acrylate monomer and a phenyl ketone, and a preferred content of each component. Silver polyethylene wax may be 1 to 10% by weight, acrylate oligomer 40 to 60% by weight, acrylate monomer 20 to 40% by weight and phenyl ketone 5 to 20% by weight. Within this component and content range, after the impregnation of the printing layer to the resin and the separation of the printing layer, the color and pattern colored in the resin are clear and the surface treatment is clean, thereby ensuring excellent moldability.

In the present invention, the color transfer layer may be formed by printing a predetermined pattern and color on the upper surface of the release agent layer. In this case, the printing method is preferably coloring the color using the offset method. The pattern and color of the color transfer layer are impregnated and transferred to the soft resin during the soft resin curing process.

In the present invention, when the soft resin is a silicone resin, the printing layer may be manufactured by further laminating an adhesive primer layer on the color transfer layer to improve adhesion between the printing layer and the soft resin. At this time, the adhesive primer layer may be laminated by applying an adhesive primer on the upper surface of the color transfer layer.

In this case, the adhesive primer component may include a siloxane compound, a silicate compound, and a titanate compound, for example, octamethyltrisiloxane, tetrapropyl orthosilicate, butoxy ethyl orthosilicate (Butoxy ethyl orthosilicate) and Tetrabutyl titanate, the preferred content of each component is 60 to 95% by weight of octamethyltrisiloxane, 1 to 15% by weight of tetrapropyl orthosilicate, butoxy ethyl ortho Silicate 1-15% by weight and tetrabutyl titanate 1-10% by weight.

Step (b): soft resin contact step

In step (b), the thermosetting soft resin 20 is poured onto the upper surface of the printing layer 10 including the PVC resin sheet 11, the release agent layer 12, and the color transfer layer 13 to form a soft resin and a print layer. Contact step (see FIG. 2).

The soft resin usable in the present invention is not particularly limited as long as it is a known thermosetting soft resin, preferably a silicone resin, an epoxy resin, or a urethane resin.

In this step, the soft resin may be used in a liquid form or gel state, and then hardened to a soft soft resin by a curing process. For this purpose, the soft resin preferably contains a conventional curing agent. In addition, since the pattern and color of the printing layer should be impregnated toward the resin after curing, the soft resin preferably has color absorbency due to curing and adhesion to the printing layer.

The soft resin may have a variety of colors according to the use of the molded product to be finally produced or the preferences of consumers, and for this purpose, may be used by adding various pigments, dyes, and other additives.

In the manufacturing method of the present invention, after the step (b), a method of further stacking the molded base layer 30 on the soft resin 20, graft the base layer and the resin of various materials to prepare a molding (See FIG. 4).

At this time, the molding base layer preferably has a planar body structure, it may be a variety of materials such as wood, glass, ceramic, gypsum, cement, rock. In addition, according to the configuration of the product may be a flat body having a variety of shapes, such as square, round, rhombus, may have a variety of shapes and thickness, such as thin plate, thick plate.

Step (c): curing step

Step (c) is a step of curing the soft resin so that the pattern and color of the print layer 10 is impregnated in the soft resin 20.

The reaction conditions of the curing process may be carried out by adjusting known curing conditions according to the type of thermosetting soft resin. During the curing process, when the soft resin is cured, heat is generated by a chemical action while a phase change occurs, so that the pattern and color of the print layer are softened to facilitate the transition, and the color absorbency and adhesive force of the soft resin are used to The patterns and colors can be transferred to the resin and impregnated.

After the curing step, the soft resin is deformed like a soft rubber material, and the predetermined patterns and colors existing in the printed layer 10 are impregnated and transferred toward the upper surface of the soft resin 20. In addition, since the release agent layer is laminated between the color transfer layer and the resin sheet inside the print layer 10, the pattern and color of the color transfer layer are impregnated toward the soft resin 20, and only the resin sheet without color is separated. To be discarded (see FIG. 3). When the printed layer is manufactured and processed into a three-dimensional mold, a flexible resin having a three-dimensional shape molded to conform the curved portion with the pattern and the color may be obtained.

In addition, in the case where the molding base layer 30 is further laminated on the flexible resin 20, the flexible resin 20 and the molding base layer 30 are formed due to heat generation and adhesion during the phase change process of the flexible resin during curing. It is integrated (see FIG. 4).

The production method according to the present invention can reproduce the vivid color and three-dimensional structure as it is while giving the pattern and color to the soft resin by the method of dipping using the impregnation technique. Therefore, it is possible to reduce the labor of painting separately for the production of three-dimensional molding, and the manufacturing process is characterized by easy and mass production.

[ Example ]

Hereinafter, the configuration and operation of the present invention through the preferred embodiment of the present invention will be described in more detail. However, the following examples are provided to aid understanding of the present invention, and the scope of the present invention is not limited to the following examples. Details that are not described herein will be omitted since those skilled in the art can sufficiently infer technically.

Example  1. Manufacturing urethane resin molding

First, after the release agent was applied to the upper surface of the PVC resin sheet in the form of a mold, a predetermined pattern and colors were printed on the offset method to form a color transfer layer to prepare a printed layer. At this time, the release agent was used by containing 3% by weight of polyethylene wax, 52% by weight of acrylate oligomer, 30% by weight of acrylate monomer and 15% by weight of phenyl ketone.

Next, the thermosetting urethane resin in a liquid form in which a curing agent was added to the upper surface of the printing layer was poured to contact the printing layer and the urethane resin, and the urethane resin was cured so that the pattern and color of the printing layer were impregnated with the soft urethane resin.

After the curing process, only the PVC resin sheet of the colorless printing layer was separated and discarded, and finally, the color and surface treatment degree of the soft urethane resin molding impregnated with the finished pattern and color were confirmed.

As a result, the color clarity was excellent, and the resin sheet of the printed layer was easily separated, and the soft resin surface was neatly treated. Since the urethane resin was colored by the impregnation process during the curing process, the color persistence was almost permanent.

Example  2. Silicone resin molding manufacture

First, after the release agent was applied to the upper surface of the PVC resin sheet in the form of a mold, a predetermined pattern and colors were printed on the offset method to form a color transfer layer to prepare a printed layer. At this time, the release agent was used by containing 3% by weight of polyethylene wax, 52% by weight of acrylate oligomer, 30% by weight of acrylate monomer and 15% by weight of phenyl ketone. In addition, since the silicone resin is inferior in adhesive strength, an adhesive primer was applied to the upper surface of the color transfer layer to improve adhesion between the printing layer and the silicone resin. At this time, the adhesive primer contained 80 wt% octamethyltrisiloxane, 7 wt% tetrapropyl orthosilicate, 7 wt% butoxy ethyl orthosilicate and 6 wt% tetrabutyl titanate.

Next, the thermosetting silicone resin in a liquid form in which a curing agent was added to the upper surface of the printing layer was poured to contact the printing layer and the silicone resin, and the resin was cured so that the pattern and color of the printing layer were impregnated with the silicone resin.

After the curing process, only the PVC resin sheet of the colorless printing layer was separated and discarded, and finally, the color and surface treatment degree of the soft silicone resin molding impregnated with the finished pattern and color were confirmed.

As a result, the color clarity was excellent, and the resin sheet of the printed layer was easily separated, and the soft resin surface was neatly treated. Since the silicone resin is colored by the impregnation process in the curing process, it was confirmed that the color persistence is almost permanent.

Example  3. Preparation of Urethane Resin Molded Product Having Three-dimensional Structure

First, after the release agent was applied to the upper surface of the PVC resin sheet in the form of a mold, a predetermined pattern and colors were printed on the offset method to form a color transfer layer to prepare a printed layer. At this time, the release agent was used by containing 3% by weight of polyethylene wax, 52% by weight of acrylate oligomer, 30% by weight of acrylate monomer and 15% by weight of phenyl ketone.

In addition, in order to mold a urethane resin having a three-dimensional structure, a metal mold was used to mold an intaglio mold matching the pattern and color of the color transfer layer, and the printed layer was pressed to prepare a three-dimensional mold. .

Next, a liquid thermosetting urethane resin in which a curing agent is added is poured on the upper surface of the printing layer (the surface on which the color transfer layer is laminated), and the printing layer and the urethane resin are brought into contact with each other, and then the pattern and color of the printing layer are soft. The urethane resin was cured to impregnate.

After the curing process, the three-dimensional mold to which the resin sheet of the colorless printing layer is attached is separated, and finally, the flexible urethane resin molded product having the desired three-dimensional structure is formed and the pattern and color are impregnated. Color, surface treatment and degree of three-dimensional moldability were confirmed.

As a result, the color clarity was excellent, and the bent portion on the three-dimensional mold was reproduced as it was, and the separation of the resin sheet of the printing layer was easy, and it was confirmed that the urethane resin surface was neatly treated.

10-printed layer 11-PVC resin sheet
12-Release agent layer 13-Color transfer layer
20-soft resin 30-molding base layer

Claims (10)

(a) stacking a resin sheet, a release agent layer and a color transfer layer in order from bottom to top to prepare a printing layer having a predetermined pattern and color;
(b) pouring a thermosetting soft resin on an upper surface of the printed layer; And
(c) curing the soft resin to impregnate the soft resin with patterns and colors of the printed layer;
The thermosetting soft resin is a silicone resin, an epoxy resin or a urethane resin,
The release agent comprises 1 to 10% by weight of polyethylene wax, 40 to 60% by weight of acrylate oligomer, 20 to 40% by weight of acrylate monomer, and 5 to 20% by weight of phenyl ketone. .
The method of claim 1,
When the soft molding has a three-dimensional structure,
In the step (a), the intaglio or embossed mold to match the pattern and color of the printing layer, and the printing layer is pressed to produce a three-dimensional mold, characterized in that for producing a flexible resin molding.
delete delete The method of claim 1,
The thermosetting soft resin is a silicone resin,
Method of manufacturing a flexible resin molding, characterized in that in the step (a) to further laminate an adhesive primer layer for improving the adhesion between the printing layer and the soft resin on the color transfer layer.
delete The method of claim 5,
The adhesive primer layer comprises a siloxane compound, a silicate compound and a titanate compound, the method of producing a flexible resin molding.
The method of claim 7, wherein
The adhesive primer layer is 60 to 95% by weight of octamethyltrisiloxane, 1 to 15% by weight of tetrapropyl orthosilicate, 1 to 15% by weight of butoxy ethyl orthosilicate and tetrabutyl Titanate (Tetrabutyl titanate) characterized in that it comprises 1 to 10% by weight, a method for producing a flexible resin molding.
The method of claim 1,
After the step (b), characterized in that further laminate the molding base layer on the flexible resin, the method of producing a flexible resin molding.
A flexible resin molded article molded by the manufacturing method of claim 1.

Images