KR20060037452A - Method of preparing printed or daubed image and printed or daubed image element by it - Google Patents

Abstract

A method of preparing a printed or daubed image characterized by comprising the first step of printing or daubing a specified printed or daubed image on the surface of a printing or daubing matter by a printing ink or a liquid mixture formed by mixing a specified powder into a paint, the second step of pressurizing and/or polishing at least the printed or daubed image under a specified condition, and the third step of further plating on the surface of the pressurized and/or polished printed or daubed image; or the first step of performing a specified printing or daubing on the surface of a printing or daubing matter by a printing ink or a paint, the second step of spraying a specified powder onto the printed or daubed surface before it is cured, the third step of pressurizing and compressing the printed or daubed image surface, the fourth step of drying and fixing the printed or daubed image surface, the fifth step of polishing the printed or daubed image surface under a specified condition, and the sixth step of further plating on the surface of the polished printed or daubed image; and a product image-prepared by the methods.

Description

TECHNICAL FIELD OF PREPARING PRINTED OR DAUBED IMAGE AND PRINTED OR DAUBED IMAGE ELEMENT BY IT

This invention relates to the printing or application | coating image creation method and the printing or application | coating image body by it.

Plastics are now being used a great deal in all areas of the world, and are expected to replace metals as a more versatile material in the future. In addition, most of the plastic products such as IC devices such as mobile phones, personal computers, TVs and digital cameras, and consumer products such as tableware and stationery, display product marks, maker marks, and various shapes. In particular, the display mark by the printing method or the plating method is different from that of the attached label or the like, and there is no discomfort with the main body, which is more preferable.

In particular, display marks and patterns made of metal plating such as gold and silver can improve the value of the product by giving a sense of calmness and a gorgeous sense, and can also be said to be particularly in accordance with the taste of young people. .

However, it is difficult to perform metal electroplating on plastics, and instead of this, special conductive plastic materials such as polyacetylene with a dopant of AsF ₅ or the like as a material, or by a vapor deposition method, or electroless Although there is also a solution plating method, heat is used at a temperature of 80 ° C. or higher, so that the material is limited, which is expensive and inevitably complicated.

In addition, many products are composed of a combination of curved surfaces due to aesthetics, and plating on these curved surfaces is not necessarily impossible, but requires a highly sophisticated technique as a method and is expensive in terms of manufacturing cost. It was supposed to be. In addition, there was a tendency that the contours of the formed display marks and patterns did not necessarily become clear.

Moreover, in the case of a computer apparatus, an electronic image display screen, etc., in addition to displaying a beautiful display mark or an image, the effect which shields electromagnetic waves in a required part is anticipated in many cases. Conventionally, the electromagnetic wave shielding means is often a means which coat | covers the whole case with the electromagnetic wave shielding material by the vapor deposition method, etc., and was not satisfied in terms of cost.

In recent years, direct drawing by an electron beam has been used in fine electric circuits such as IC devices. Moreover, the method of directly constructing an electric circuit with electroconductive printing ink is also examined. However, the conductive powder for imparting conductivity, for example, the content of Ag powder, should not be impaired in print characteristics as printing ink other than the function of retaining good conductivity which is an original function. The opposite conditions must be met.

In order not to impair this printing characteristic, content of electroconductive powder becomes a limit only 20-30%, and this is not necessarily a condition which acquires favorable electroconductivity. Furthermore, when the printing line width is less than 10 µm, the absolute value of the powder particle density itself becomes small, and good conductivity cannot be expected. Therefore, an electric circuit having good conductivity by the printing method is highly desired.

As described above, it is highly desirable to attach a display mark or an image by various plating or the like on the surface of a printed object or a coated article using a printing method at a relatively low cost. There is also a great demand for a means of imparting an electromagnetic shielding effect at a low cost to a required portion. In addition, in terms of cost, formation of a fine electric circuit having good conductivity by a preferable printing method is highly desired.

SUMMARY OF THE INVENTION In view of the above demands, the present invention has an object of providing a plating or a fine electric circuit such as an image reliably and inexpensively on a surface of a printed or coated object using a printing method. Another object is to provide a means for imparting an electromagnetic wave shielding effect at a relatively low cost to a required portion.

This invention is a printing or application | coating image creation method,

1) A method for creating a printed or coated image on the surface of a printed or coated article, comprising: printing or applying a predetermined printed or coated image with a mixed liquid in which a predetermined powder is mixed with a printing ink or a paint on the surface of a printed or coated article. And a second step of pressurizing and / or polishing at least the printed or coated image surface thereof printed or painted according to predetermined conditions, and the surface of the pressurized and / or polished printed or coated image. It includes a third step of performing plating.

2) A method for creating a printed or coated image on the surface of a printed or coated object, the first step of performing predetermined printing or coating on the surface of the printed or coated object with printing ink or paint, and curing of the printed or coated surface. (2) the second step of spraying the predetermined powder before the third step, the third step of pressing and compressing the printed or coated image surface, and the fourth step of dry fixing the printed or coated image surface And a fifth step of polishing the printed or coated image surface according to predetermined conditions, and a sixth step of further plating the surface of the polished printed or coated image.

3) The predetermined powder in 1) or 2) above is composed of at least one kind of conductive powder, magnetic powder, light emitting powder or pearl powder.

4) The predetermined powder in 1) or 2) above is at least one selected from the group of Ti, Cu, Fe, Ni, Mg, C, Pd, Ag or Au, or a group of each compound thereof. The average particle size is 0.5 to 10 µm.

5) The plating in 1) to 4) is electrolytic plating or electroless plating and electrolytic plating.

6) The plating in 1), 2) and 4) above is at least one plating selected from Au, Ag, Ni, Pd, Cu or their alloys, and the plating thickness is 0.2 to 50 µm. .

7) The predetermined conditions of grinding | polishing in said 1) -6) are sponge, felt, cotton cloth, or leather, and are 20-100 g / cm <^{2> of} surface pressures, and the polishing average speed 5 Polishing is performed as many as the number of times surface gloss occurs at -20 m / min.

8) The to-be-printed or coated object in 1) to 7) is made of any one of plastics, ceramics, semiconductors, fibers and paper.

In addition, the present invention,

9) The printed or coated image formed by printing or coated image according to any one of 1) to 8) above is a plastic product,

10) The printed or coated image created by printing or coated image according to any one of 1) to 8) above is a case or an electronic image display screen of a computer device,

11) The printed or coated image created by printing or coated image according to any one of 1) to 8) above is a spectacle frame,

12) The printed or coated image produced by the printing or coated image according to any one of 1) to 8) above is an ornament,

13) A print or coated image body, wherein the printed or coated image body formed by printing or coated image according to any one of 1) to 8) above is a toy.

In addition, the present invention,

14) The printed or coated image created by printing or coated image according to any one of 1) to 8) above is an IC (integrated circuit) device,

15) The printed or coated image formed by printing or coated image according to any one of 1) to 8) above is a glass product,

16) The printed or coated image produced by the printing or coated image according to any one of 1) to 8) above is a textile cloth product,

17) A printed or coated image body, wherein the printed or coated image body created by printing or coated image according to any one of 1) to 8) above is a paper sheet product.

BRIEF DESCRIPTION OF THE DRAWINGS The process flowchart which shows Embodiment 1 of the printing or application | coating image creation method to the plastics of this invention.

Fig. 2 is a process flowchart showing Embodiment 2 of the method for producing a printed or coated image on the plastic of the present invention.

Fig. 3 is a process flowchart showing Embodiment 3 of the method for producing a printed or coated image on the plastic of the present invention.

Fig. 4 is a process flowchart showing Embodiment 4 of the method for producing a printed or coated image on the plastic of the present invention.

Fig. 5 is a process flowchart showing Embodiment 5 of the method for producing a printed or coated image on the plastic of the present invention.

Fig. 6 is a process flowchart showing Embodiment 6 of the method for producing a printed or coated image on the plastic of the present invention.

Fig. 7 is a schematic diagram of a notebook personal computer on which a printed or coated image implemented by Embodiment 1 of the present invention is displayed on the surface.

Fig. 8 is a schematic diagram of a spectacle frame in which a print or coated image implemented by Embodiment 2 of the present invention is displayed on the surface.

Fig. 9 is a schematic diagram of a bracelet in which a printed or coated image implemented by Embodiment 3 of the present invention is displayed on the surface.

Fig. 10 is a schematic diagram of a cellular phone in which a print or coated image implemented by Embodiment 4 of the present invention is displayed on the front side of the upper side;

Fig. 11 is an explanatory diagram of (a) a sample upper surface on which a print image is displayed in Example 5 of the present invention, and (b) a partially enlarged explanatory diagram of the print image.

EMBODIMENT OF THE INVENTION In order to demonstrate this invention further in detail, this is demonstrated according to attached drawing. 1 is a process flowchart showing Embodiment 1 of the printing or coated image creating method of the present invention.

That is, 1st process (OP1-1) prints a display mark, a pattern, etc. by the convex printing method, the screen method, etc., using the previously created pattern as a raw material in the predetermined location of the plastic molded object shape | molded with normal molding raw material. It is a process. The printing surface is not necessarily flat, but may be a curved surface. In this case, the curved surface printing method by Japanese Patent Laid-Open No. 2-239972, "Printing method and apparatus for curved surface", etc. filed by the applicant of the present invention can be applied.

The printing ink or paint to be used is what is normally used, The thing which mixed electroconductive powder, mainly metal powder into this, and used as the liquid mixture is used. The conductive powder is at least one member selected from the group of Ti, Cu, Fe, Ni, Mg, C, Pd, Ag or Au, and the average particle size is preferably 0.5 to 10 m. It is important that the amount of the conductive powder mixed into the printing ink or the paint is mixed with about 30 to 70 vol% with respect to 100 vol% of the printing ink or the paint, and then sufficiently stirred and dispersed.

If the content of the conductive powder is less than 30 vol%, the metal plating in the next step becomes impossible, and if it exceeds 70 vol%, the printing performance of the mixed printing ink is extremely inferior, which is not preferable. In addition, the average particle size of the conductive powder is preferably 0.5 to 10 µm, and the conductivity is improved as the average particle size is smaller, but it is difficult to form the conductive powder at 0.5 µm or less, and at 10 µm or more, the printing performance, in particular, fine wire The accuracy of printing deteriorates, which is not preferable.

The powder is not necessarily limited to metal powder, but metal powder is preferable from the viewpoint of conductivity performance and availability. In particular, by using a mixture of Ag and Pd powder, preferable conductivity in subsequent steps can be easily obtained. When using Cu and Fe powder, in order to avoid the fall of the electroconductivity by the oxide layer of powder, it is preferable to implement surface activation by adding additives, such as an organic acid.

As described above, in the second step (OP1-2), printing on the flat or curved surface of the plastic molded body is carried out by pressing and compressing the surface of the printed image with a roller made of PTFE or the like. By this process, the contact rate between electroconductive particles improves and electroconductivity improves. Although the pressurization compression conditions are suitably set according to the average particle size and the mixing ratio, it is preferable that the compression load is largely selected within a range that does not disturb the printed image.

Completion of the pressurization compression process performs the drying process step OP1-3 of the 3rd process, and fixes a printed image. Drying is performed by normal warm air drying, UV drying or the like.

The next 4th process OP1-4 is a process made into the summary of this invention, and is a process of polishing the said printed image surface according to predetermined conditions.

The purpose of this polishing is to improve the surface roughness without lowering the contact rate between the conductive particles as the unplated, in order to obtain a good gloss surface of the plating surface in the case of metal plating on a printed printed image. It is in doing it. Therefore, it is not a processing method for generating any wear powder on the powder to be processed, such as polishing or buffing the printed image surface, but only improving surface roughness without generating wear powder on the powder. Unlike the case on the metal surface, there is a point that the object is a soft printed image plane. By grinding, the virgin surface of the powder appears on the surface, thereby improving the catalyst function and surface conductivity and facilitating plating.

That is, in this invention, sponge, felt, cotton cloth, or leather is used as a polisher. In particular, it is more preferable to use a sponge. As the polishing conditions, the polishing surface pressure was 20 to 100 g / cm ² and the polishing average speed was 5 to 20 m / min. Degree is the limit of use. More preferably, the polishing surface pressure 20~50g / cm ^2, the average polishing rate 10~20m / min, most preferably polished surface pressure 30~40g / cm ^2, the average polishing rate 10~15m / min.

Although the grinding | polishing conditions are suitably selected according to the conditions (average particle size, mixing ratio, hardness, adhesive force) of the printed image to be polished naturally, it is necessary to grind until the grinding | polishing surface shows a blurry gloss surface anyway. The surface roughness (Hmax) of the printed image surface after polishing is preferably about 0.5 to 2 탆.

In addition, although the process of performing a grinding | polishing process after a pressurization process was demonstrated above, powder particle conditions (average particle diameter, material, filling amount, etc.), printing ink, or paint conditions (material, a viscosity, wettability, etc.) According to this, either the pressurization treatment or the polishing treatment may be omitted.

5th process OP1-5 is a plating process which expresses a display mark or a pattern substantially.

The electroplating of the material selected from the group of Au, Ag, Ni, Pd, Cu, or their respective alloys is performed mainly on the printed image which has finished the polishing step. Normal plating conditions can be applied using the printed image surface as a cathode. The plating surface acquired by this is different from a normal plating surface, and becomes a plating surface which has moderate glossiness.

FIG. 2 is a process flowchart showing Embodiment 2 of the printing or coated image creating method of the present invention. FIG.

The difference from the process of FIG. 1 is OP2-1 to OP2-4 process. First, printing or coating of a display mark or an image on the printed or coated image body in the first step OP2-1 is performed with ordinary standard printing ink or paint. However, unlike printing or coating with the mixed liquid in FIG. 1, since the printing ink or the paint itself is required to act as an adhesive, printing depending on the powder amount of the mixed liquid mixed with the conductive powder described above. Regardless of whether the sex is good or not, there is an advantage that better printing can be achieved.

In the second step (OP2-2), the conductive powder as the second step (OP2-2) is used in a state in which the printed or applied print or coated image is in a semi-dry (less dry) state, that is, in a state where adhesive force remains. It spreads uniformly on the said printing or application | coating image surface by a sifter method or a spraying method.

The electroconductive powder to be sprayed is basically the same standard as the electroconductive powder mixed into the printing ink or paint in the OP1-1 step, but the powder distribution amount to be sprayed and fixed on the printing or coated image surface is the step of the previous embodiment. It can be made considerably larger than (Fig. 1).

In the third step (OP2-3), the compression or compression process is performed on the printing or coated image surface with a roller made of PTFE or the like. Although pressurization compression conditions are suitably set according to average particle size and mixing ratio, it is preferable to select a compression load large in the range which does not disperse a printed or apply | coated image. This is the same as the case of embodiment described above. By this process, the contact rate between electroconductive particle improves and electroconductivity improves significantly.

The heat-drying treatment is performed on the printing or coated image surface subjected to the pressure compression treatment in the fourth step (OP2-4). By this step, the conductive powder is sufficiently fixed to the printed or coated image body. Drying is performed by normal warm air drying, UV drying or the like.

In the fifth step (OP2-5), polishing is performed on the printed or coated image surface. Since the surface distribution density of the conductive powder is higher than in the previous embodiment, it is preferable that the polisher use felt or leather rather than a sponge.

The polishing conditions are appropriately selected according to the conditions (average particle size, mixing ratio, hardness, adhesive strength) of the printed or coated image to be polished as described above, but in any case, it is necessary to polish until the polished surface exhibits a blurred glossy surface. .

The surface roughness (Hmax) of the printed or coated image surface after polishing is preferably about 0.5 to 2 mu m.

Subsequently, according to the sixth step (OP2-6), by performing metal electrolytic plating on the surface of the print or coated image, the display mark or the image can be displayed as a glossy plating surface.

The type of metal plating is selected from the plating of Au, Ag, Ni, Pd or Cu alloys according to the color and design specification of the printed or coated image body. Metal electroplating thickness is about 0.5-30 micrometers.

3 is a process flowchart showing Embodiment 3 of the printing or coated image creating method of the present invention.

As for the characteristic of this process, the plating process is abbreviate | omitted in the process of FIG.

The powder sprayed in the powder spreading step (OP3-2) is a powder which maintains the final aesthetic form, and is Au powder, Ag powder, Ni powder, Pd powder, Cu alloy powder, pearl powder or light emitting powder. . Here, pearl-like powder means lame-like powders, such as a pearl powder, shell endothelial powder, and the epidermal powder of fish (so-called sparkling thing). In addition, Zn or sulfides of alkaline earth metal are used for the light emitting powder.

In the polishing step OP3-5 in this step, the previous polishing step in the previous embodiment (FIGS. 1 and 2) is a base treatment for allowing the metal plating to be performed later to be polished as it is. On the other hand, it is going to obtain the gloss which improves a commodity value in the powder itself sprayed by this grinding | polishing process.

Therefore, the polishing conditions for taking out the gloss of powder as a final product are required. The polishing surface pressure is set to a sufficiently low value (30 to 50% surface pressure) as compared with the surface pressure of the previous polishing step, and the polishing rate is large (about 1.5 times or more).

In addition, the conditions in OP3-1, 3-3, 3-4 process are substantially the same as the conditions of the corresponding process in previous embodiment.

4 is a process flowchart showing Embodiment 4 of the printing or coated image creating method of the present invention.

This process omits the grinding | polishing process further at the process of Embodiment 3 (FIG. 3). This process is applied to the goods which require the reflected light by scattering of powder particle, without requiring gloss.

Moreover, it is suitable also when applying this invention to not only a display mark or a shape, but the whole surface or a specific large area part for requesting the electromagnetic wave shielding effect which is the 2nd objective of this invention. By the pressurization and compression process, the distribution density between particles becomes high and the electromagnetic wave blocking effect is improved. In this case, of course, conductive powder or magnetic powder is used for the powder.

Fig. 5 is a process flowchart showing Embodiment 5 of the printing or coated image creating method of the present invention.

The characteristic of this process is that the pressure compression process and the polishing process are omitted for the above-described process, and the surface roughness is thereby improved by performing thick electroless plating in place of it, and subsequent electrolytic plating is polished. It is to be. That is, as electroless plating due to a difference in ionization tendency or the like, electroless plating with Cu, in particular, has extremely good uniform electrodeposition property, and it is possible to coat the coating even in a condition where the conductivity is relatively insufficient. It is preferable to obtain a relatively thick plating thickness.

In electroless plating of Pd, Pd is usually attached as an aqueous solution of palladium chloride and tin chloride. In addition, adhesion can be improved by lightly etching the surface before electroless plating.

By setting plating thickness to 0.5-50 micrometers, the roughness of the surface matte shape by electroconductive powder improves to 2 micrometers or less (Hmax). In 0.5 micrometer or less, roughness improvement is not enough, and 50 micrometers is an economical limit by electroless plating.

In order to perform electroless plating, the electroconductive powder which forms a printing or coating image needs to be the powder of the element which has the ionization tendency larger than the electroless plating element fundamentally.

In addition, electrolytic plating of Au, Ag, Ni, Pd, and Cu alloys can be easily performed through Cu, Ni, or Pd electroless plating. In addition, the surface roughness by this electroplating can obtain an acceptable gloss even without a grinding | polishing process. Of course, the gloss can be further improved by performing a polishing step after electroplating.

In this process, the printing or application | coating process (OP5-1) and dry fixation process (OP5-2) of a printing or application | coating image correspond to the process in previous embodiment.

6 is a process flowchart showing Embodiment 6 of the printing or coated image creating method of the present invention.

The characteristic of this process is that it prints with printing ink or paint instead of the mixed liquid in the printing or application | coating process (OP5-1) of the printing or application | coating image of FIG. 5, The printing or application ink or coating is semi-dry The conductive powder is applied in a state (less dry state). Of course, it is the same as that of FIG. 5 that the electroconductive powder is powder by the element which has the tendency of ionization larger than the electroless plating element.

Example 1:

Printed or Coated Imaging Body: Notebook Personal Computer (Material ABS)

Mark: Print character ("SHUHO", line width 3mm, text size 10 x 8mm)

           Printing method; Screen printing

           Mixed printing ink (B: 20vol%)

Printing ink (A); Standard Ink for Screens

Conductive powder (B); Ti powder, Ag powder (vol ratio 30/70)

Average particle size about 2㎛

Pressurized compression treatment: Pressurized by PTFE roller (load approximately 1 Kg 3 rec.)

Polishing treatment: polisher; Urethane sponge

Polishing surface pressure; About 50g / cm ²

           Polishing average speed; About 10m / min.

           Round-trip number; 20rec.

Metal plating: Au electroplating (plating thickness 1 μm)

Start count: 5

7 is a schematic diagram of a notebook personal computer on which a printed or coated image implemented in Example 1 is displayed on its surface.

The letter printed image SHUHO after the final metal plating was slightly perceived as a slight missing part at the boundary line, but was actually displayed as a glossy plating that could be sufficiently satisfied as a product value. In addition, it was judged that the adhesion of plating was also sufficient.

Example 2:

Printed or Coated Imaging Body: Glasses Frame (Material ABS)

Mark: Print shape (indeterminate print on frame surface, minimum line width 0.5mm)

           Printing method; Surface printing by pad printing method

           Printing ink; Standard Ink for Offsets

Spraying conductive powder: Spraying Ag powder (average particle size about 1 µm) by natural dropping with a sieve immediately after printing

Pressurized compression treatment: Pressing the printed part with the PTFE plate R side (load about 5 Kg, 3 rec.) And removing excess powder from the printed part by air.

Heat drying treatment: 60 ℃, 1hr, settling in a hot stove

Polishing treatment: polisher; Urethane Sponge Use

Polishing surface pressure; About 50g / cm ²

           Polishing average speed; About 10m / min.

           Round-trip number; 20rec.

Metal plating: Au electroplating (plating thickness about 1 μm)

Starts: 10

8 is a schematic diagram of a spectacle frame in which the printed image implemented in Example 2 is displayed on the surface.

Although three defects (defects) of plating were recognized in the minimum line width part in three out of ten prototypes, it was judged that it had sufficient commodity value as the whole shape of the plating which has a gloss overall.

However, it was judged that it is more preferable to press load compression process to make load conditions slightly low.

Example 3:

Mark: Print Shape (Star Shape Mark)

           Printing method; Surface printing by pad method

           Printing ink; Standard Ink for Offsets

Spraying powder: Spray Au powder (average particle size about 1㎛) uniformly by natural dropping by sieve immediately after printing

Pressurized compression treatment: Pressed printing part is pressurized with PTFE plate R side (load about 5Kg, 3rec.) And excess powder is removed from the printing part by air.

Heat drying treatment: 60 ° C., 1 hr, settling in a hot stove

Polishing treatment: polisher; Urethane Sponge Use

Polishing surface pressure; About 20g / cm ²

           Polishing average speed; About 20m / min.

           Round-trip number; 30rec.

Starts: 10

Fig. 9 is a schematic diagram of a bracelet in which a printed image (star mark) implemented in Example 3 is displayed on the surface.

The polishing surface pressure was lowered to about 20 g / cm ² and the polishing rate was approximately twice that of the previous example. As a result, the gold pattern by gloss gold powder appeared vividly only in the star mark part, and it was judged that it was sufficient as a commodity value. In addition, there was no sagging or the like and the shape border was clear.

Example 4:

Printed or Coated Image: Mobile Phone Case (Material ABS)

Mark: Painted shape (top side)

           Painting method; Spraying

           varnish; Acrylic paint

Spray powder: Spray Ag powder (average particle size about 1㎛) by natural dropping by sieve immediately after painting

Pressurized compression treatment: The entire surface is pressurized with PTFE plate R surface (approximately 5 kg load), and excess powder is removed with air.

Heat drying treatment: 60 ° C., 1 hr, settling in a hot stove

Start count: 3 (Example 4), 3 (without pressure compression)

Fig. 10 is a schematic diagram of a cellular phone in which a print image implemented in Embodiment 4 of the present invention is displayed on the front side of the upper side.

As a result of comparatively measuring the electrical resistivity (average) on the entire upper side of the upper side, the prototype of Example 4 was greatly improved in that the pressure treatment step was not performed.

Although some nonuniformity was recognized in powder distribution, it showed the blurry silver white as a whole, and was also externally enough.

INDUSTRIAL APPLICABILITY The present invention can provide a toy (for example, various plastic robots, etc.) at low cost by showing a dream mark or shape by applying a glossy plating to a plastic toy.

Moreover, by selecting electroconductive powder and magnetic powder, this invention can provide the product which has not only the effect which can implement | achieve glossy metal plating to a display mark and an image, but also the electromagnetic wave shielding effect and the photocatalytic effect.

As described above, according to the present invention, it is inexpensive to carry out metal electrolytic plating on ordinary plastics such as ABS materials, which are considered to be impossible in the present invention, and furthermore, plating in the form of gloss without using any processing means after plating. It became possible.

Example 5:

FIG. 11 is an explanatory diagram of a fifth embodiment, (a) is an explanatory diagram of a sample upper surface showing a printed image, and (b) is a partially enlarged explanatory diagram of a printed image.

In the figure, 10 is a ceramic plate, 11 is a simulated printed wiring, and 12 is a connector portion. In addition, a sample specification is as follows.

Printed or coated image body: simulated printed wiring device (material Si-based ceramic plate 10 mm x 10 mm x 0.5 mm)

Simulation wiring specification:

        Print content; Offset printing the wiring described in FIG.

        (Wiring width 7 μm × length 7 mm × distance between wires 10 μm × 300 players)

        Printing ink; Standard Ink for Offsets

Spraying powder: Spray Pd powder (average particle size about 1㎛) uniformly by natural dropping by sieve immediately after printing

Pressurized compression treatment: Pressurized treatment (approximately 5 kg, 3 rec. Of load) of the printed part with the PTFE plate R side, and the excess powder is removed by inversion.

Heat drying treatment: 60 ° C., 1 hr, settling in a hot stove

Polishing treatment: polisher; Urethane Sponge Use

Polishing surface pressure; About 20g / cm ²

           Polishing average speed; About 20m / min.

Starting number: 3 (sample of this example), 3 comparative products (printed above standard as a mixed solution containing 30 vol% of Pd powder (average particle size about 1 µm) in standard ink for offset)

Although the conduction was inadequate in all the comparative products, all 3 prototypes of the present Example recognized full conduction. Although the deviation of about +/- 1 micrometer was recognized with respect to the target wiring width of 7 micrometers, it is considered that it actually falls within an allowable range.

To the sample subjected to the polishing treatment, electroless Cu plating (plating thickness of about 3 µm) under normal conditions was further performed. It was confirmed that Cu plating was almost uniformly coated on the wiring. Problems such as bridges due to plating were not recognized.

Example 6:

Coating object: Silk cloth (1000 denier 100mm × 100mm)

Application condition:

varnish; UV Curing Paint

Application method; Full coating by spraying method (approximately 0.03mm of coating thickness)

Sprinkling powder: Pd powder (average particle size: about 1 µm) is sprayed uniformly by natural falling with a sieve immediately after application, and excess powder is removed by reversing. (About 40 micrometers in thickness)

Pressurized treatment: Pressurized by PTFE roller (load 0.5Kg, 3rec.)

Although the surface of the to-be-coated silk fabric of this Example showed the perfect conductive surface, flexibility is largely impaired and it is thought that it is somewhat difficult in practical use. Therefore, it is preferable to apply partial printing by the printing method in the conduction range, not front surface application.

In addition, each said embodiment is described about the basic process, It does not limit to further performing auxiliary process between each process and a process. In addition, each Example is described about one Example in those conditions, and various conditions in an Example are not limited to the range as described in the said Example.

The present invention is a display mark or image having gloss in a plastic product or the like by the first to third processes of claim 1 and the first to sixth processes of claim 2 and by the specific means of claims 3 to 8. Can be formed at low cost, and an effect as a countermeasure against electromagnetic waves can be expected.

In addition, by such a process, various products in which a mark or a shape having a modern image or gloss with a modern image and gloss are reliably inexpensive, and an electromagnetic wave shielding effect can also be expected, and also various products having good conduction by a printing method. Could provide.

As described above, the method for creating a printed or coated image on the surface of the printed or coated object according to the present invention is applicable to products in all fields, and at low cost, modern and glossy display marks and images on the surface. It can be formed, and can respond to a wide range of social demands that expect low-cost electromagnetic wave shielding measures.

Claims (17)

As a method of creating a printed or coated image on the surface of a to-be-printed or coated object, A first step of printing or applying a predetermined print or coated image with a mixed liquid in which predetermined powder is mixed in printing ink or paint on the surface of a printed or coated object; A second step of pressurizing and / or polishing said printed or painted at least said printed or coated image surface according to predetermined conditions; And a third step of further performing plating on the surface of the pressurized and / or polished print or coated image. As a method of creating a printed or coated image on the surface of a printed or coated object, A first step of performing predetermined printing or coating on the surface of the printed or coated object with printing ink or paint, A second step of spraying a predetermined powder before curing of the printing or coating surface; In addition, the third step of pressing and compressing the printed or coated image surface, A fourth step of dry fixing the printed or coated image surface; A fifth step of polishing the printed or coated image surface according to predetermined conditions; And a sixth step of performing plating on the surface of the polished printing or coating image. The printing or coated image creation method according to claim 1 or 2, wherein the predetermined powder is composed of at least one of conductive powder, magnetic powder, light emitting powder or pearl-shaped powder. The said predetermined powder is at least 1 sort (s) selected from the group of Ti, Cu, Fe, Ni, Mg, C, Pd, Ag, or Au, or the group of each compound thereof, An average particle size is 0.5-10 micrometers, The printing or application | coating image creation method characterized by the above-mentioned. The printing or coated image creation method according to any one of claims 1 to 4, wherein the plating is electroplating, or electroless plating and electroplating. The said plating is at least 1 sort (s) of plating chosen from Au, Ag, Ni, Pd, Cu, or each alloy thereof, The plating thickness is 0.2. It is -50 micrometers, The printing or application | coating image creation method characterized by the above-mentioned. The said grinding | polishing predetermined condition is a sponge, a felt, a cotton cloth, or a leather, The surface pressures of any one of Claims 1-6 are 20-100 g / cm <^2> , A printing or coating image creation method, characterized in that polishing is performed by the number of times surface gloss occurs at a polishing average speed of 5 to 20 m / min. The printing or coated image creating method according to any one of claims 1 to 7, wherein the printed or coated object is made of any one of plastics, ceramics, semiconductors, fibers, and paper. A print or coated image body according to any one of claims 1 to 8, wherein the printed or coated image body on which the printed or coated image is created is a plastic product. A printed or coated image body according to any one of claims 1 to 8, wherein the printed or coated image body on which the printed or coated image is created is a case or an electronic image display screen of a computer device. A printed or coated image body according to any one of claims 1 to 8, wherein the printed or coated image body on which the printed or coated image is created is an eyeglass frame. A print or coated image body according to any one of claims 1 to 8, wherein the printed or coated image body on which the printed or coated image is created is a trinket. A printed or coated image body, wherein the printed or coated image body on which the printed or coated image is created according to any one of claims 1 to 8 is a toy. A printed or coated image body according to any one of claims 1 to 8, wherein the printed or coated image body on which the printed or coated image is created is an IC (integrated circuit) device. The printing or coating image body in which the printing or coating image body by which the printing or application image was produced | generated by any one of Claims 1-8 is a glass product. A print or coated image body according to any one of claims 1 to 8, wherein the printed or coated image body on which the printed or coated image is produced is a textile cloth product. A printed or coated image body according to any one of claims 1 to 8, wherein the printed or coated image body on which the printed or coated image is produced is a paper sheet product.

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