JP6857382B2 - Manufacturing method of molded product with notch pattern and molded product with notch pattern obtained by it - Google Patents

Description

The present invention relates to a method for producing a molded product with a notch pattern that gives a unique impression, and a molded product with a notch pattern obtained thereby.

Compact containers and lipstick containers that contain cosmetics are required not only to have functionality, but also to have a good-looking design that reflects the product image. As a technique for meeting such a demand, for example, a technique for integrating a decorative film into a lid of a compact container without using an adhesive is disclosed (see Patent Document 1 and the like).

Recently, in order to give a more complicated pattern, a part of the decorative film is removed by laser irradiation, and the ground part of the container is exposed from the removed part to form a character or a pattern. Further, as a method of imparting a more impressive pattern, a colored layer is formed on the surface of the molded body, a coating layer is further formed on the colored layer, and then a through hole portion is formed in the coating layer by laser irradiation. A method of forming and exposing the colored layer from the portion has also been proposed (see Patent Document 2 and the like).

However, as in Patent Document 1, the one using a decorative film has a problem that the decorative film portion is deteriorated, worn or damaged over time, resulting in poor appearance. Further, in the method of exposing the ground portion of the container to give a color pattern as in Patent Document 2, the color of the character or pattern pattern portion is limited to the background color of the container. There is a problem that the impression is weakened.

Therefore, the applicant has developed a method for imparting a color pattern that can be maintained beautifully for a long period of time to the surface of a resin molded product at low cost, and has already obtained a patent (see Patent Document 3).

Japanese Unexamined Patent Publication No. 2001-292827 Japanese Unexamined Patent Publication No. 2002-127691 Japanese Patent No. 5628516

That is, in Patent Document 3, a colored undercoat layer containing a colorant, a vapor-deposited layer, and a topcoat layer are formed in this order on the molded surface of the resin molded product, and other than the colored undercoat layer. The layer is partially removed by laser irradiation, and the colored undercoat layer is partially exposed from the removal traces so that a color pattern appears. According to this method, since the undercoat layer also serves as a colored layer, the overall layer thickness can be set to be extremely thin. Moreover, the color pattern has the advantages of being excellent in durability and maintaining a beautiful state for a long period of time.

However, since the above color pattern appears by comparing the metallic luster color of the vapor-deposited layer with the color of the colored undercoat layer exposed from the removal trace by laser irradiation, it is clear and sharp without any ambiguity. Gives an impression. Therefore, for example, it is difficult to provide a design with a calm impression with shadows. On the other hand, there is a strong demand for compact containers and the like containing cosmetics that have not only a clear and sharp impression but also an appearance with a unique impression that has never been seen before.

The present invention has been made in view of such circumstances, and a method for producing a molded product with a notch pattern that gives a completely new impression, which has a unique shadow in the metallic luster color, and a notch obtained by the method. The purpose is to provide patterned molded products.

In order to achieve the above object, the present invention presents a step of preparing a patterned molded product to which a shade pattern P in which dark colors and light colors are mixed is imparted, and a colorant in at least a part of the patterned molded product. There forming a transparent base layer that is perforated colored transparency with undercoating transparent resin composition dispersed contained, and forming a deposited layer on the transparent base layer, the vapor deposition layer A step of forming a top coat layer directly or via another layer on the above, and a layer other than the transparent base layer among the plurality of layers formed in the above-mentioned patterned molded product is partially subjected to laser irradiation . It is a manufacturing method of a molded product with a notch pattern , which comprises a step of forming a notch pattern R by removing it into dots or lines having a width of 0.1 to 2 mm.
In shading pattern P of the textured moldings, the thinnest color lightness (L ^{* 1),} the difference between the darkest color lightness ^{(L * 2) (L *} 1 -L * 2), at 50-10 Yes,
The first gist is a method for producing a molded product with a notch pattern, wherein the thin-film deposition layer is a half-deposited layer having a light transmittance of 20 to 90%.

Further, the present invention comprises a step of preparing a patterned molded product having a shaded pattern P in which a dark color and a light color are mixed, and an undercoat in which a colorant is dispersed and contained in at least a part of the patterned molded product. forming a transparent base layer that is perforated colored transparency with a coating for transparent resin composition, forming the other layers and do deposited layer to form a deposited layer on the transparent base layer in this order A step of forming a notch pattern R by partially removing the vapor-deposited layer or the vapor-deposited layer and another layer into dots or lines having a width of 0.1 to 2 mm by laser irradiation, and the above-mentioned cutting. A method for producing a notched patterned molded product, which comprises a step of forming a top coat layer directly or via another layer on the surface of the patterned molded product on which the notched pattern R is formed, wherein the molded product has the above-mentioned pattern. in shading pattern P of the molded article, the thinnest color lightness (L ^{* 1),} the difference between the darkest color lightness ^{(L * 2) (L *} 1 -L * 2) is a 50-10, the The second gist is a method for producing a molded product with a notch pattern in which the vapor-deposited layer is a half-deposited layer having a light transmittance of 20 to 90%.

The present invention, among them, in particular, when forming the transparent underlying layer which is above Symbol colored, to produce a color density by applying an undercoating transparent resin composition nonuniformly The third gist is the manufacturing method of the molded product with the notch pattern.

Further, the present invention comprises a step of preparing a patterned molded product having a shaded pattern P in which a dark color and a light color are mixed, a transparent base layer made of a transparent adhesive composition containing a colorant dispersedly contained, and a transparent base layer. A step of preparing a transfer foil in which a vapor-deposited layer or a vapor-deposited layer, another layer, a top coat layer, and a base material layer are provided in this order, and the transfer foil is applied to at least a part of the patterned molded product. The transfer foil is attached to the transparent base layer side of the above, and the base coat layer is removed from the attached transfer foil to expose the top coat layer, and the transfer foil attached to the above-mentioned patterned molded product. A step of forming a notch pattern R by partially removing a layer other than the transparent base layer from a plurality of derived layers into dots or lines having a width of 0.1 to 2 mm by laser irradiation is provided. It is a manufacturing method of a molded product with a notch pattern, and in the shade pattern P of the molded product with a notch, the difference (L) between ^{the lightness of the lightest color (L * 1} ) and the lightness of the darkest color (L ^{* 2). * 1} −L ^{* 2} ) is 50 to 10, and the method for producing a molded product with a notch pattern, in which the vapor deposition layer in the transfer foil is a half vapor deposition layer having a light transmittance of 20 to 90%, is the fourth gist. To do.

The present invention has a notch pattern in which either a YAG laser, a YVO4 laser, or a semiconductor laser is used as the laser, in particular, in the step of forming the notch pattern R by the laser irradiation. The fifth gist is the manufacturing method of the molded product.

Further, the present invention includes a dark on at least a portion of the color and light color is gray pattern P miscible is granted textured moldings, have a transparency transparent underlayer colored by the dispersion containing the colorant, The vapor-deposited layer is formed in this order, and a top coat layer is formed on the vapor-deposited layer directly or via another layer, and a layer other than the transparent underlayer is partially formed with a width of 0.1 to 2 mm. It is a molded product with a notch pattern in which the notch pattern R is formed by being removed in a dot shape or a linear shape, and ^{the lightness (L * 1} ) of the lightest color in the shade pattern P of the above-mentioned patterned molded product. The difference (L ^{* 1} −L ^{* 2} ) in the lightness (L ^{* 2} ) of the darkest color is 50 to 10, and the vapor deposition layer is a half vapor deposition layer having a light transmittance of 20 to 90%. The attached molded product is the sixth gist.

Furthermore, the present invention includes a dark on at least a portion of the color and light color is gray pattern P miscible is granted textured moldings, have a transparency transparent underlayer colored by the dispersion containing the colorant, The vapor-deposited layer or the vapor-deposited layer and the other layer are provided in this order, and the vapor-deposited layer or the vapor-deposited layer and the other layer are partially removed in a dot or linear shape having a width of 0.1 to 2 mm. A molded product with a notch pattern in which a notch pattern R is formed and a top coat layer is provided on the surface of the patterned molded product on which the notch pattern R is formed, either directly or via another layer. in shading pattern P of the textured moldings, the thinnest color lightness (L ^{* 1),} the difference between the darkest color lightness ^{(L * 2) (L *} 1 -L * 2), at 50-10 The seventh gist is a molded product with a notch pattern in which the vapor-deposited layer is a half-deposited layer having a light transmittance of 20 to 90%.

The present invention, among them, in particular, a transparent base layer that is above Symbol colored, to those in which the notch textured molded article having a color intensity and gist of the eighth.

That is, the manufacturing method of the present invention is based on a patterned molded product (so-called marble-like molded product) to which a light and shade pattern P is imparted, and a transparent base layer having transparency is formed on at least a part thereof, and further on the transparent base layer. The vapor deposition layer and the topcoat layer are formed in this order, or the topcoat layer is formed last, and the layer above the transparent base layer (only the vapor deposition layer or the vapor deposition layer and the topcoat layer, Alternatively, if another layer is formed on the thin-film deposition layer, the other layer is also partially removed by laser irradiation to form a notch pattern R. Further, in another production method of the present invention, the laminated portion of the transparent base layer, the thin-film deposition layer (or the vapor-film deposition layer and another layer), and the top coat layer is obtained by using a transfer foil, and other than that. Is designed to form a notch pattern R in the same manner as in the above manufacturing method.

Then, in these manufacturing methods, the shade pattern P imparted to the base molded product has a specific lightness difference, and the vapor-deposited layer on the vapor-deposited layer is a half-deposited layer having a specific light transmittance. Therefore, the metallic luster color of the half-deposited layer can be seen through the shade pattern P of the molded product from below, thereby giving a sense of depth due to the unique shading. On the other hand, in the notch pattern R formed by laser irradiation, the color of the notch portion is a color tone having a delicate shade in which the transparent base layer is overlapped on the shade pattern P of the molded product. , The design is in harmony with the glossy color with a unique shade. Moreover, although the notch pattern R has a delicate shade in the color tone of the notch portion, the contour shape is a clear shape formed by laser irradiation without any ambiguity. Therefore, it is as if the notch pattern R having a clear outline shape is on the front side and the glossy background having a unique shadow spreads on the back side of the notch pattern R with a spatial gap. It gives a mysterious impression and is rich in fun.

Further, according to the production method of the present invention, the type of the light and shade pattern P of the patterned molded product, the degree of light transmittance of the vapor-deposited layer, the design of the notch pattern R by laser irradiation, and the like are appropriately selected and combined. , It is possible to easily obtain a resin molded product having a wide variety of appearances in which a shaded glossy color and a clear notch pattern R are combined. Therefore, it is possible to provide a molded product having an impression appearance that meets the needs of the customer in a short delivery time, and the practical value is high.

In the production method of the present invention, there are cases where a topcoat layer is formed on a vapor-deposited layer or the like and then removed by laser irradiation, and cases where the vapor-deposited layer or the like is formed and then the vapor-deposited layer or the like is irradiated with a laser. As described above, a resin molded product having a wide variety of appearances can be easily obtained in both the case of removal and the case of using the transfer foil, and an excellent effect is exhibited. However, when another layer is formed on the vapor-deposited layer, the other layer must be a transparent layer that does not impair the light transmission of the vapor-deposited layer.

Then, in the present invention , in particular, in the step of forming the notch pattern R, the notch pattern R is removed by irradiating the layer to be removed into dots or lines having a width of 0.1 to 2 mm. to form a becomes a delicate pattern cutout pattern R, compared with the shadow glossy color as a background is Ru clearer such Ttei.

Moreover, in the present invention, in particular, in the step of forming the transparent underlying layer, since the colorant with undercoating transparent resin composition contained dispersed, to form a colored transparent base layer, and more notch pattern with a molded article of colors is Ru obtained.

Incidentally, among the present invention, especially those which, when forming the transparent underlying layer which is the colored, and to produce a color density by unevenly applying the undercoating transparent resin composition, It is suitable because it is easy to control the shade of color according to the final design.

Further, among the present inventions, in particular, in the step of forming the notch pattern R by the above laser irradiation, a laser in which either a YAG laser, a YVO4 laser or a semiconductor laser is used as the laser is the surface of the molded product. It is preferable that the layer above the transparent base layer formed in the above can be partially removed so as to obtain an efficient and beautiful finish.

As described above, the molded product with a notch pattern obtained by each of the manufacturing methods of the present invention has a notch pattern R having a clear outline and shades of color, and a glossy color having a unique shadow as a background thereof. The contrast with is giving a very interesting impression, so it is a product with a high eye-catching effect. Moreover, the pattern is durable and can be maintained in a beautiful state for a long period of time.

The notch textured molded article of the present invention, in particular, since the cutout pattern R is formed by point or linear notch portion of the width of 0.1 to 2 mm, gloss background in shades what color and coupled with, Ru Do as providing a more delicate impression Ttei.

Further, the upper Symbol transparent underlayer, is transparent underlayer colored by the dispersion containing the colorant, the color of the coloring agent, the color of the deposited layer and the notch pattern R is, it is assumed a more colorful Ttei Ru.

Further, among the present inventions, in particular, when the transparent base layer has shades of color, the vapor deposition layer and the notch pattern R have a more complicated color, and the shadow of the metallic luster color of the background is also delicate. It is suitable because it becomes a thing.

It is an external perspective view which shows one Embodiment of this invention. It is a partially enlarged vertical sectional view of the said embodiment. (A) is a perspective view of the patterned molded product used for the lid portion of the above embodiment, (b) is a plan view of (a), and (c) is a transparent base layer formed on the surface of the patterned molded product. It is a top view which shows the state which was done. It is explanatory drawing of the manufacturing method of the said embodiment, (a) is a partially enlarged vertical sectional view which shows the state which formed the vapor deposition layer and the top coat layer on the transparent base layer, (b) is transparent by laser irradiation. It is a partially enlarged vertical sectional view which shows the state which the two layers above the base layer were removed. (A) is a plan view showing the lid portion after the laser irradiation, (b) is a partially enlarged view of the notch pattern R formed on the lid portion, and (c) is a portion showing a modified example of the notch pattern R. It is an enlarged view. (A) and (b) are both explanatory views of other manufacturing methods of the present invention. (A) and (b) are both explanatory views of still another manufacturing method of the present invention. (A) and (b) are both explanatory views of other manufacturing methods of the present invention.

Next, embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the following embodiments.

FIG. 1 shows an embodiment in which the present invention is applied to a compact container for accommodating cosmetics. This compact container is composed of a main body 1 for accommodating cosmetics and a lid 2 for covering the main body, and a simple notch line (large and small flowers and petals) is formed on the upper surface of the lid 2. The line width D = 0.8 mm, and the notch pattern R of the design drawn in FIG. 5 [b]) is added. The portion other than the notch pattern R is given a metallic luster color having a unique shadow due to the thin-film deposition layer 5 on both the upper surface of the lid portion 2 and the front, rear, left and right side surfaces. The surface of the vapor deposition layer 5 is covered with a transparent top coat layer 6. The main body 1 and the lid 2 are hinged at their rear ends so that the lid 2 opens upward with respect to the main body 1.

More specifically, the lid portion 2 has a transparent base layer 4 and a metallic luster on the surface of the base body 3 made of a resin molded product, as shown in FIG. 2, which is a partially enlarged vertical sectional view thereof. The vapor-deposited layer 5 and the colorless and transparent top coat layer 6 are laminated and formed in this order. Then, the vapor deposition layer 5 and the top coat layer 6 above the transparent base layer 4 are partially removed to form a notch pattern R.

The lid portion 2 can be obtained, for example, as follows. That is, first, as shown in FIG. 3A, a resin molded product shaped into the shape of the lid 2 is prepared as the base body 3. The base body 3 needs to be provided with a so-called marble-like shade pattern P in which a dark color (brown in this example) and a light color (white in this example) are mixed.

In order to obtain a molded product having such a shade pattern P, for example, a method of mixing and injecting two or more kinds of resin materials having different colors (so-called "marble-like molding") is preferably used (for example, Japanese Patent Application Laid-Open No. 2009). -Refer to Japanese Patent No. 137192, Japanese Patent No. 5651741 and the like).

As the resin material, various thermoplastic resins are usually used. For example, polyester resins such as polyethylene terephthalate (PET) and polybutylene terephthalate (PBT), polystyrene (PS), acrylic nitrile / styrene copolymer (AS), acrylic nitrile / butadiene / styrene copolymer (ABS), polyethylene (PE). , Polypropylene (PP), polymethyl methacrylate (PMMA) and the like, and among them, ABS resin is preferable.

Further, the molded product to be the base body 3 does not need to be provided with the light and shade pattern P as a whole, and printing, transfer, and coloring are performed only on the surface on which the vapor deposition layer 5 and the notch pattern R are to be formed. It is also possible to use a film to which a light and shade pattern P is added by sticking a film or the like.

The shade pattern P given to the base body 3 is the difference (L ^{* 1} −L ^{) between the lightest color lightness (L * 1} ) and the darkest color lightness (L ^{* 2) among the patterns. * 2} ) needs to be 50 to 10. That is, when the difference in brightness is out of the above range, it is difficult to visually recognize that there is a shading in the notch portion of the notch pattern R in the finally obtained molded product with the notch pattern, and the vapor deposition layer around it. It is not possible to impart a deep shadow, which is a feature of the present invention, to the metallic luster color derived from 5. The difference in brightness is more preferably 35 to 15 in terms of effect.

In the present invention, the brightness (L ^* ) is standardized by the CIE of the International Commission on Illumination and JIS.
It refers to the brightness (quantified with white as 100 and black as 0) quantified by the "L ^* a ^* b ^{* color system" defined in Z8729.} Then, the brightness of the portion to which the shade pattern P is added is divided into unit areas and all are measured with a colorimeter (manufactured by Nippon Denshoku Kogyo Co., Ltd., spectroscopic color difference meter SE6000), and the highest brightness value L ^{* 1} ( The lightest color value) and the lightest lightness value L ^{* 2} (darkest color value) can be obtained.

Next, the transparent base layer 4 is formed on the upper surface of the base body 3 and the front, rear, left, and right side surfaces. The transparent base layer 4 has a composition in which a colorant (red dye in this example) for imparting a desired color tone to various undercoat compositions conventionally used for forming the transparent base layer is dispersed and contained. It can be formed using an object.

Examples of such a transparent resin composition for undercoating include a transparent resin composition containing various transparent resins for undercoating as a main component, such as an acrylic resin, an organopolysiloxane resin, and a urethane resin. Among them, a composition containing an acrylic resin as a main component is preferably used in terms of hardness, transparency, dispersibility of a colorant, and the like.

As the colorant dispersed and contained in the transparent resin composition for undercoating, various dyes, pigments and the like can be appropriately selected. However, it is preferable that the color of the colorant is different from both the "dark color" and the "light color" used in the shade pattern P given to the base body 3. That is, when the color of the colorant overlaps with the color used for the shade pattern P, the shade of the shade pattern P of the base body 3 that can be seen through the colored transparent base layer 4 is weakened and becomes monotonous, giving an impression. Is weakened.

The content ratio of the colorant dispersedly contained in the transparent resin composition for undercoating depends on the type of colorant, but is usually 0.01 to 50 with respect to 100 parts by weight of the transparent resin composition for undercoating. It is preferable to set it in the weight part. That is, if the content ratio of the colorant is too small, the coloring is weak and there is no point in coloring. On the contrary, if the content ratio of the colorant is too large, the final product with a notch pattern is used as a base. The shade pattern P of the body 3 is not preferable because it is difficult to see through the transparent base layer 4 and the vapor deposition layer 5. Further, if the content ratio of the colorant is too large, the adhesion to the molded product (base body 3 in this example) under the transparent base layer 4 and the vapor deposition layer 5 above the transparent base layer 4 may be lowered.

The transparent base layer 4 having shades of color can be obtained by applying a transparent resin composition for undercoating in which the above-mentioned colorant is dispersed and contained on the surface of the base body 3 so as to have a non-uniform thickness. it can. Where the thickness is thin, the color due to the colorant becomes lighter, and where the thickness is thick, the color due to the colorant becomes darker, and the shade of color appears as a whole. In addition to spray coating, brush coating, roll brush coating, airless spray coating, dip coating, flow coating, curtain flow coating, roll coating, etc. are examples of methods for forming layers so that the thickness is non-uniform. Be done. Among them, spray coating is preferably used from the viewpoint of work efficiency and finish.

The thickness of the transparent base layer 4 formed by the transparent resin composition for undercoating in which the colorant is dispersed and contained is set to be about 0.01 to 30 μm at the thinnest point and about 1 to 50 μm at the thickest point. It is preferable to do so. That is, if the thickness of the transparent base layer 4 is too thin even partially, the performance of protecting the base body 3 may not be sufficiently obtained, and conversely, if the thickness is too thick even partially, that portion may not be obtained. The transparency of the transparent base layer 4 may be impaired, which is not preferable.

In the present invention, the transparent base layer 4 does not necessarily have to be shaded, and the entire transparent base layer 4 may be colored with a uniform density. In that case, the thickness of the transparent base layer 4 is uniformly formed as a whole. Further, instead of adding shading, it may be a layer in which a color pattern is formed in which the color differs depending on the partial portion . However, the watermark colored transparent underlying layer 4, because it requires that show the shading pattern P of the base body 3 of the underlying, transparent base layer 4 which are colored may try watermark at least the shading pattern P It needs to be transparent enough to be able to.

FIG. 3 (c) shows a plan view of the base body 3 in which the transparent base layer 4 having shades of color and having transparency, which is the above-described embodiment, is formed. Note that FIG. 3B is a plan view of the base body 3 before the transparent base layer 4 is formed. In these figures, the narrower the hatching interval is, the darker the color of the portion is (lower brightness), and the wider the hatching interval is, the lighter the color of the portion is (higher brightness). However, the boundary line drawn between colors is a virtual line drawn to show the shade of color in an easy-to-understand manner, and in reality, the color gradually becomes darker or lighter and is clear. Boundary lines are hard to appear.

Next, after forming the vapor deposition layer 5 on the transparent base layer 4, the top coat paint is applied and dried on the vapor deposition layer 5 to form the top coat layer 6 [see FIG. 4 (a)].

The material of the vapor deposition layer 5 may be any material such as aluminum, tin, stainless steel, etc., as long as it adheres to the transparent base layer 4. Then, the vapor deposition layer 5 is formed, for example, ^{by heating and evaporating the vapor deposition material in a vacuum (generally 10-2} Pa or less) and precipitating the evaporated particles on a molded product.

However, the thin-film deposition layer 5 must be a half-deposited layer having a light transmittance of 20 to 90% so that the shade pattern P of the base body 3 underneath and the shade of color of the transparent base layer 4 can be seen through. .. That is, if the light transmittance of the vapor-deposited layer 5 is too low, the shade of color on the lower side of the vapor-deposited layer 5 cannot be visually recognized in the finally obtained molded product with a notch pattern. It is not possible to add a shadow with a sense of depth to the metallic luster color of the vapor deposition layer 5. On the other hand, if the light transmittance is too high, the metallic luster color of the vapor-deposited layer 5 becomes almost transparent, the contrast with the notch pattern R becomes unclear, and the impression is weak.

The thickness of the thin-film vapor deposition layer 5 is appropriately adjusted so that the light transmittance of the thin-film deposition layer 5 is within the above range. Then, a hologram forming layer, a pearl tone imparting layer, or the like may be further formed on the vapor deposition layer 5, and in this case, a more complicated metallic luster color tone can be obtained, and the range of design is widened. ..

Further, the top coat layer 6 protects the vapor deposition layer 5 to prevent oxidation, corrosion and abrasion, and various top coat paints such as colorless and transparent acrylic paint can be used. .. The top coat layer 6 may be colorless or colored by containing a colorant, but has transparency without impairing the metallic luster of the vapor-deposited layer 5 underneath. What is suitable is suitable. Of course, a matte finish is also suitable to make the metallic luster look soft. Further, it may contain a UV blocking agent, an antibacterial agent, or the like for preventing ultraviolet rays. The thickness of the top coat layer 6 is preferably 10 to 50 μm. That is, if it is less than 10 μm, a sufficient effect may not be exhibited to protect the vapor-deposited layer 5 or the like under it, and if it exceeds 50 μm, the protective effect is sufficient, but the weight of the entire compact container is heavy. This is because there is a risk of increasing and losing lightness.

Next, laser irradiation is applied to a preset partial region (a portion where the notch pattern R is planned to be formed) on the upper surface of the base body 2 on which the transparent base layer 4, the vapor deposition layer 5, and the top coat layer 6 are formed. Then, the thin-film deposition layer 5 and the top coat layer 6 of the irradiated portion are linearly removed, and the transparent base layer 4 is exposed as a notch pattern R from the removal traces (see FIG. 4 [b]).

The laser irradiation can be performed using various laser devices such as a YAG laser, a carbon dioxide laser, a ruby laser, a YVO4 laser, and a semiconductor laser. Among them, it is preferable to use any one of a YAG laser, a YVO4 laser, and a semiconductor laser in terms of controllability and finishability.

As shown in FIG. 5A and FIG. 5B, which is a partially enlarged view of the notch pattern R formed by the laser irradiation, the surface of the transparent base layer 4 is already exposed. As described above, the transparent base layer 4 having a shade of color and having transparency and the shade pattern P of the base body 3 under the transparent base layer 4 have a complex shade of color in which the shade pattern P is overlapped. Then, the periphery of the notch pattern R becomes a metallic luster color having a sense of depth due to a delicate shade, in which the metallic luster color of the thin-film vapor deposition layer 5 having light transmission and the overlapping pattern of shades underneath are overlapped. It gives the impression that the notch pattern R is raised to the front side.

By contrasting this notch pattern R with the unique metallic luster color of the unremoved thin-film deposition layer 5 through which the shades of color can be seen through, it is possible to obtain a lid portion 2 having a beautiful and very impressive appearance. it can. By combining the lid portion 2 with the main body portion 1, the compact container shown in FIG. 1 can be obtained.

According to this method, the unique and impressive design can be applied to the lid 2 which is a resin molded product very efficiently. Moreover, the notch portion of the notch pattern R is protected by the transparent base layer 4, and the surface of the portion where the vapor deposition layer 5 having metallic luster is formed is protected by the top coat layer 6. Therefore, the entire surface of the lid portion 2 is durable, and its beautiful appearance can be maintained for a long period of time. Since the configuration and color of the notch pattern R can be easily changed in design, there is an advantage that a compact container with a wide variety of designs can be supplied in a short delivery time.

The compact container thus obtained gives an interesting impression by combining a metallic luster color with a unique sense of depth due to shading and a notch pattern R by drawing a clear line. Therefore, the product has a high eye-catching effect. And since the beautiful appearance of this compact container is durable, it can be used well for a long period of time.

In the above example, the base body 3 is provided with a shade pattern P in which white and brown are mixed, and a transparent base layer 4 colored with a red dye and having transparency is layered on the base body 3. , However, the combination of these colorings is not particularly limited. Further, as already described, the transparent base layer 4 may have no shading, and may be transparent without containing a colorant. However, from the viewpoint of the effect of comparison with the final notch pattern R, it is better to use a pattern in which the shade pattern P of the base body 3 is overlapped with the shade of the transparent base layer 4 to form a shade pattern. When the thin-film deposition layer 5 having light transmission is laminated on the surface, the shades that can be seen through the surface of the thin-film deposition layer 5 become more complicated and have a sense of depth, which is preferable.

Further, in the above example, the notch pattern R formed by laser irradiation is configured as if the outline of a flower or petal is drawn by the removal trace by laser irradiation, as if drawing a line, but the notch pattern R is , It does not necessarily have to be composed of lines. For example, the notch portion of the point, when is this, or can combine the cutout portion of the linear. For example, as shown in FIG. 5C, dot-shaped notches may be continuously arranged to form the outline of the pattern. In this way, when the notch pattern R is composed of a narrow linear notch and a dot-shaped notch, it gives a more delicate impression in combination with the glossy color of the shaded background. Become .

When the notch pattern R is composed of a linear notch portion or a dot-shaped notch portion, the dot-shaped or linear width D [see FIGS. 5 (b) and 5 (c)] is 0. .. It is necessary to set it to about 1 to 2 mm in order to obtain a better impression.

Further, in the above example, after the vapor deposition layer 5 and the top coat layer 6 were formed, laser irradiation was performed to form a notch pattern R [see FIG. 4 (b)], but the top coat layer 6 was a laser. It may be formed after irradiation. That is, as shown in FIG. 6A, after forming the vapor deposition layer 5 on the transparent base layer 4, laser irradiation is performed to partially remove the vapor deposition layer 5, and the cutout pattern R is formed in the removed portion. To form. Then, as shown in FIG. 6B, the topcoat layer 6 can be formed on the entire surface including the removed portion of the vapor deposition layer 5.

The molded product with a notch pattern thus obtained also has a notch pattern R having a unique impression as in the above example, and is rich in interest. However, in this case, it is desirable that the top coat layer 6 is as colorless and transparent as possible so as not to interfere with the color tone of the notch pattern R and the shadow of the vapor deposition layer 5.

Further, in the above example, the transparent base layer 4, the thin-film deposition layer 5, and the top coat layer 6 are formed one by one on the surface of the base body 3 in this order, and these layers are transferred from the transfer foil. It may be formed by That is, as shown in FIG. 7A, first, a transfer foil in which the transparent base layer 4', the vapor deposition layer 5, the top coat layer 6 and the base material layer 11 are provided in this order is prepared. .. However, the transparent base layer 4'must have transparency and adhesiveness, and may disperse and contain a colorant having a color different from the dark color and the light color in the shade pattern P of the base body 3. It may be colored by.

Then, as shown in FIG. 7B, the adhesive transparent base layer 4'of this transfer foil is applied to the base body 3 to attach the transfer foil, and the base layer 11 is attached to the attached transfer foil. Peel off and remove. In this way, an intermediate in which the transparent base layer 4', the vapor deposition layer 5 and the top coat layer 6 are laminated in this order can be obtained on the surface of the base body 3. Therefore, similarly to the above example, the vapor deposition layer 5 and the top coat layer 6 can be partially removed by laser irradiation to form a notch pattern R [see FIG. 4 (b)].

The molded product with a notch pattern thus obtained also has a notch pattern R having a unique impression as in the above example, and is rich in interest.

Further, a middle coat layer 20 using a semi-hard coat type paint is formed on the surface of the vapor deposition layer 5 as another layer, then a top coat layer 6 is formed, and these layers are partially formed by laser irradiation. It can be removed to form a notch pattern R [see FIG. 8 (a)]. Alternatively, a middle coat layer 20 using a semi-hard coat type paint is formed on the surface of the vapor deposition layer 5, and then these layers are partially removed by laser irradiation to form a notch pattern R. From above, the topcoat layer 6 can be formed on the entire surface including the removed portion by laser irradiation [see FIG. 8B]. By interposing the middle coat layer 20 between the vapor deposition layer 5 and the top coat layer 6 in this way, the durability of the whole is improved, and a beautiful appearance can be maintained for a longer period of time.

Further, when the transfer foil as shown in FIG. 7A is also used, for example, a transfer foil in which the middle coat layer 20 is formed between the vapor deposition layer 5 and the top coat layer 6 can be used.

In the above example, the invention is applied to the lid 2 of the compact container, but the object to which the notch pattern R of the present invention is applied is not limited to the container, but various resin molded products or resin molded products. It can be applied to molded products that combine other members. For example, it can be widely applied to mobile phones, stationery, home appliances, various containers, ornaments, and the like.

[Examples 1 to 6, Reference Example 1 , Comparative Examples 1 to 5]
According to the manufacturing method of the above-described embodiment, the basic configuration is substantially the same as the lid portion 2 shown in FIG. 1, and a part of the configuration is set as shown in Tables 1 to 4 below. Parts were manufactured (Examples 1 to 6, Reference Example 1 , Comparative Examples 1 to 5).

Then, the impression of the surface of each lid obtained was evaluated by five specialized monitors. ◎: The contrast between the notch pattern R and the deep background color is impressive, and it is very interesting. The contrast between the notch pattern R and the deep background color is rich in interest, △: the background color has almost no depth and is not particularly interesting, and ×: there is no special impression. .. The results are also shown in Tables 1 to 4 below. The color brightness L ^{* 1 to} L ^{* 2} was measured with a colorimeter (manufactured by Nippon Denshoku Kogyo Co., Ltd., spectrocolor difference meter SE6000, light source: C light source 2 °).

From the above results, it can be seen that in each of the products of Examples 1 to 6 and the product of Reference Example 1 , the contrast between the notch pattern R and the deep background color is rich in interest. On the other hand, it can be seen that none of the comparative examples 1 to 5 is very interesting.

The present invention can be widely used to provide an interesting molded product with a notch pattern, which has a combination of a notch pattern R and a background color that gives an unprecedented unique impression.

2 Lid 3 Base 4 Transparent base layer 5 Deposited layer 6 Top coat layer P Shading pattern R Notch pattern

Claims (8)

A step of preparing a patterned molded product having a shaded pattern P in which a dark color and a light color are mixed, and a transparent resin composition for an undercoat in which a colorant is dispersed and contained in at least a part of the patterned molded product. forming a have a transparent colored transparent base layer with, and forming a deposited layer on the transparent base layer, on the deposited layer, directly or via another layer Of the steps of forming the top coat layer and the plurality of layers formed on the patterned molded product, the layers other than the transparent base layer are partially stipulated or linear with a width of 0.1 to 2 mm by laser irradiation. It is a manufacturing method of a molded product with a notch pattern , which comprises a step of forming a notch pattern R by removing the product.
In shading pattern P of the textured moldings, the thinnest color lightness (L ^{* 1),} the difference between the darkest color lightness ^{(L * 2) (L *} 1 -L * 2), at 50-10 Yes,
A method for producing a molded product with a notch pattern, wherein the thin-film deposition layer is a half-deposited layer having a light transmittance of 20 to 90%. A step of preparing a patterned molded product having a shaded pattern P in which a dark color and a light color are mixed, and a transparent resin composition for an undercoat in which a colorant is dispersed and contained in at least a part of the patterned molded product. forming a step of forming a have a transparent colored transparent underlayer deposition layer and other layers or to form a deposition layer on the transparent base layer in this order by using the above deposition A step of forming a notch pattern R by partially removing the layer or the vapor-deposited layer and another layer into dots or lines having a width of 0.1 to 2 mm by laser irradiation, and the notch pattern R are formed. A method for producing a notched patterned molded product, which comprises a step of forming a top coat layer directly or via another layer on the surface of the patterned molded product.
In shading pattern P of the textured moldings, the thinnest color lightness (L ^{* 1),} the difference between the darkest color lightness ^{(L * 2) (L *} 1 -L * 2), at 50-10 Yes,
A method for producing a molded product with a notch pattern, wherein the thin-film deposition layer is a half-deposited layer having a light transmittance of 20 to 90%. The molded product with a notch pattern according to claim 1 or 2 , wherein when the colored transparent base layer is formed, the transparent resin composition for undercoating is applied non-uniformly to generate shades of color. Manufacturing method. A step of preparing a patterned molded product having a shaded pattern P in which a dark color and a light color are mixed, a transparent base layer composed of a transparent adhesive composition containing a disperse of a colorant, and a vapor deposition layer or another layer. The step of preparing the transfer foil in which the top coat layer and the base material layer are provided in this order, and the transfer by applying the transparent base layer side of the transfer foil to at least a part of the patterned molded product. Of the steps of pasting the foil and removing the base material layer from the pasted transfer foil to expose the top coat layer, and the plurality of layers derived from the transfer foil pasted on the patterned molded product, transparent. A method for producing a molded product with a notch pattern, which comprises a step of partially removing layers other than the base layer into dots or lines having a width of 0.1 to 2 mm by laser irradiation to form a notch pattern R. And
In shading pattern P of the textured moldings, the thinnest color lightness (L ^{* 1),} the difference between the darkest color lightness ^{(L * 2) (L *} 1 -L * 2), at 50-10 Yes,
A method for producing a molded product with a notch pattern, wherein the vapor-deposited layer in the transfer foil is a half-deposited layer having a light transmittance of 20 to 90%. The notch pattern according to any one of claims 1 to 4 , wherein any of a YAG laser, a YVO4 laser, and a semiconductor laser is used as the laser in the step of forming the notch pattern R by the laser irradiation. Manufacturing method of molded products. Dark on at least a portion of the color and light color is gray pattern P miscible is granted textured moldings, and have a transparent transparent underlayer colored by the dispersion containing the colorant, and the deposited layer, this A top coat layer is formed on the top coat layer directly or via another layer, and layers other than the transparent base layer are partially punctate or linear with a width of 0.1 to 2 mm. a notch textured moldings removed notch pattern R is formed in,
In shading pattern P of the textured moldings, the thinnest color lightness (L ^{* 1),} the difference between the darkest color lightness ^{(L * 2) (L *} 1 -L * 2), at 50-10 Yes,
A molded product with a notch pattern, wherein the thin-film deposition layer is a half-deposited layer having a light transmittance of 20 to 90%. At least a portion of the dark and light color shading pattern P miscible is granted textured moldings, a transparent underlayer colored by the dispersion containing the have a transparent colorant, a deposition layer or deposited layer The other layers are provided in this order, and the vapor-deposited layer or the vapor-deposited layer and the other layer are partially removed in a dot or linear shape having a width of 0.1 to 2 mm to form a notch pattern R. , A molded product with a notch pattern in which a top coat layer is provided directly or via another layer on the surface of the patterned molded product on which the notch pattern R is formed.
In shading pattern P of the textured moldings, the thinnest color lightness (L ^{* 1),} the difference between the darkest color lightness ^{(L * 2) (L *} 1 -L * 2), at 50-10 Yes,
A molded product with a notch pattern, wherein the thin-film deposition layer is a half-deposited layer having a light transmittance of 20 to 90%. The molded product with a notch pattern according to claim 6 or 7 , wherein the colored transparent base layer has shades of color.

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