KR100980689B1 - Vessel having multi-tone - Google Patents

Abstract

The present invention relates to a multi-tone container, which according to the present invention has a main resin layer constituting the container body and a continuous or cascaded color tone gradient colored layer of right and left color tone, or At least one transparent layer or monochromatic pigmentation which has, independently or subordinately to, the above-mentioned main resin layer and a continuous up-and-down gradient coloration layer, or optionally independently or subordinately to them longitudinally and / or spirally Multicolored vessels having layers or having continuous or cascaded color tone gradient colored layers of different shades are provided, and the multicolored vessels according to the present invention can significantly increase the design freedom of the containers themselves produced by blow molding. In addition, as the color of the resin itself, which forms the exterior of the container, expresses beautiful high quality taste as a multi-color tone, demand increases. In addition, after the container itself is manufactured, it is possible to minimize separate post-processing surface treatment processes such as thermal transfer or printing or coating work using a separate device, and optionally, when forming a transparent layer or transparent part, It is possible to visually check the contents contained directly without opening the container, and can easily check the degree of consumption of the contents even when used.

Multi-tone, vessel, continuous, cascade, helix, transparent, blow

Description

Multi-tone container {VESSEL HAVING MULTI-TONE}

The present invention relates to a multi-tone container, and more particularly has a main resin layer constituting the container body and a continuous or cascade color gradient gradient layer of left and right color tone, Optionally, independently or subordinately, to the above-described main resin layer and the continuous up-and-down gradient color layer, or at least one transparent layer in the longitudinal and / or spiral direction independently or dependently thereof or the above-described continuous or casing A multicolor vessel having a different continuous or cascaded color tone gradient color layer or at least one monochromatic color layer in a color tone different from the color tone of the cascade gradient.

Conventional multicolored vessels require a separate post-processing surface treatment process, such as thermal transfer or printing or coating operations using a separate device after the production of a monochromatic vessel made of resin, in order to express multicolored colors on its outer surface. It has been considered essential for production.

Although a gradation container having a hue gradient has been conventionally proposed for the purpose of improving the monotony of the conventional monochromatic resin container, they have a hue gradient only in the vertical direction in the vertical direction, and have a hue gradient in the lateral direction. The polychromatic tones further comprising at least one transparent portion in the longitudinal direction or in the form of a spiral and / or at least one colored layer of a monochromatic tone different from the hue of the continuous longitudinal gradient described above could never be expressed. There are still significant constraints on color design freedom.

In the related art, international publication pamphlet WO 2006/118067 (2006.11.09.) And Japanese Patent Publication No. 2006-306470 (2006.11.09) relating to injection molding methods for bottles and preforms having a gradient pattern. .), Korea Patent Registration No. 58776 (2006.06.05.) For a container manufacturing apparatus having a gradation effect, and Korea Patent Registration No. 552,097 (2006.02.07.) For a multi-layer blow molding machine for producing a container of a gradient color have.

The above-mentioned international publication pamphlet WO 2006/118067 (2006.11.09.) And Japanese Patent Laid-Open No. 2006-306470 (2006.11.09.) Primarily form a preform by injection molding and then biaxially stretch blow molding the same. The present invention relates to a polyethylene terephthalate container and a preform manufactured therein, wherein a colored resin intermediate layer having a different color from the main material resin layer is gradually penetrated in a state in which the thickness thereof is reduced, and a bottle having a gradation effect in the vertical direction in the vertical direction and a preform for manufacturing the same. Discloses.

On the other hand, Korean Patent Registration No. 588776 (2006.06.05.) By some applicants of the present invention proposes a molding apparatus having one main extruder and auxiliary injection machines on both the left and right sides thereof, and is extruded by the main extruder. It is precisely controlled through an auxiliary injection molding machine on the outer surface of the main material resin, and the biaxially oriented blow molding of a parison in which a colored resin layer is injected at a gradually increasing or decreasing amount and speed is carried out in the vertical direction. A container exhibiting a gradation effect is disclosed.

And Korea Patent Registration No. 552,097 (2006.02.07.) Proposes a multi-layer blow molding apparatus using three extruders, gradually increasing the thickness of the outermost layer resin of the container formed in three layers in the axial direction (vertical vertical direction) A container showing a gradation effect in the vertical direction is disclosed by biaxially drawing blow molding of a parison thinned or thickened.

Typically, a hollow container in the form of a bottle is manufactured by blow molding by a blow molding machine, and a general blow molding machine is composed of a hydraulic screw type extruder unit, a mold unit, a die head portion, and a blowing unit, and the mold unit is formed by left and right molds. The blow air pressure is about 7kg / ㎠ and is only about 1/50 of the mold pressure at the time of injection molding. The direction of the extruded molten resin is changed by 90 ° to form a hollow parison downward, and the blowing portion blows air into the parison to inflate the parison to make the mold surface the outer surface boundary. This is a part for injecting inert gas such as air or nitrogen for forming into a container shape and the blowing method is upper, lower, and overwind. Although divided into 吹) typically is sangchwi or hachwi is mainly used.

Today the blow molding process is widely applied to the molding of hollow containers, especially hollow bottles containing liquid products.

In order to help the understanding of the gradation container structure having a conventional hue gradient in the longitudinal direction, the above-described Korean Patent Registration No. 552,097 as a conventional technique is described in detail together with the blow molding apparatus and the blow molding method used for its manufacture. Let's look at it.

First, the conventional blow molding apparatus for forming a gradient container shown in Figs. 1A to 1C is a molding machine composed of three extruders 12 ', 13' and 14 '.

In the blow molding apparatus shown in Figs. 1A and 1B, three extruders 12 ', 13', 14 'are mounted on the top of the frame 1', and the three extruders 12 '( 13 'and 14' are respectively connected to die head 6 ', and mold 7' is located below die head 6 '.

The resin grains supplied through the hoppers 3 'installed in the three extruders 12', 13 'and 14' are heated and melted by a heater 4 'outside the cylinder 5'. Next, it is extruded into the die head 6 'by the extrusion screw 19' inside the cylinder 5 ', and each extruder 12' (13 ') 14' by the die head 6 '. A parison 29 '(see FIG. 3A), in which three layers of synthetic resin layers extruded from the tube, are extruded, and the parison 29' extruded from the die head 6 'is air or When expanded in volume by injection of an inert gas such as nitrogen, it is shaped by a mold 7 'into a constant container form (see FIGS. 3A-3C).

In the figure, reference numeral 2 'is a motor for driving the extrusion screw 19'.

FIG. 1C is a cross-sectional view taken along the line A-A of FIG. 1B, and is a cross-sectional view of the die head 6 'in the conventional blow molding apparatus.

In the illustrated conventional die head 6 'structure, the first, second and third fasteners 9', 10 ', 11' are provided with a mandrel 18 'inside the body 8'. The first extruder 12 'is a structure sequentially mounted to the center, and the first extruder 22' is melted through a flow path 16 'formed between the first fastener 9' and the second fastener 10 '. (See FIG. 2), and the second extruder 13 'is melted through the flow path 16' formed between the second fastener 10 'and the third fastener 11'. ′ (See FIG. 2), and the third extruder 14 ′ is melted through the flow path 16 ′ formed between the body 8 ′ and the third fixture 11 ′. ) (See FIG. 2).

In the figure, reference numeral 15 'denotes an annular flow path, 5' denotes a cylinder, and 19 'denotes an extrusion screw.

FIG. 2 is a schematic view showing the laminated state of the synthetic resin layer extruded from the extrusion die head 6 'of the conventional molding apparatus of FIG. 1, wherein the first resin 22' extruded from the first extruder 12 ' 1st resin 9 'and the 2nd resin 23' extruded from the 2nd extruder 13 'by forming the downward flow as an innermost layer through the flow path 16' formed between the 2nd fixture 9 'and the 2nd fixture 10'. ) Forms a downward flow as an intermediate layer through a flow path 16 'formed between the second fastener 10' and the third fastener 11 ', and the third resin extruded from the third extruder 14'. 24 'forms a downward flow as the outermost layer through the flow path 16' formed between the body 8 'and the third fastener 11'. Therefore, the first resin 22 ', the second resin 23', and the third resin 24 'form a tube-shaped parison 29' (see Fig. 2A) sequentially stacked.

Here, as shown in FIG. 3A, the third resin 24 ′ forming the outermost layer of the parison 29 ′ is extruded from the die head 6 ′ by the third extruder 14 ′. 21 ') to gradually increase or decrease its extrusion amount, thereby gradually decreasing or gradually decreasing the thickness t of the outermost layer (not shown) formed by the third resin 24'. It is thickened, whereby the tint of the container is gradually thickened or lightened along the longitudinal direction.

The control of the extrusion amount by the controller 21 'is usually possible by controlling the rotational speed of the extrusion screw 19' or by controlling the extrusion opening area of the third extruder 14 ', As the extrusion pressure of the extruder is relatively low compared to the injection molding machine, it is a form suitable for maintaining a constant constant extrusion pressure, so that precise control of the extrusion pressure is not easy, and thus, it is difficult to ensure homogeneity in the manufacture of the longitudinal gradient container.

3A to 3C illustrate a process of molding a parison 29 'of a laminated plastic structure extruded from the die head 6' of the conventional molding apparatus of FIG. 1 into a hollow container by blow molding. As shown in FIG. 3A, when the parison 29 'is extruded from the die head 6' as shown in FIG. 3A, the cutter 25 'cuts the parison 29' to a predetermined length, and FIG. 3B. As the mold 7 'seals the cut parison 29' as described above, and the air nozzle 27 'of the blowing portion blows air into the parison 29', the parison 29 'is expanded. The inner surface of the mold 7 'is pressed to form a hollow container 28'. As shown in FIG. 3C, the mold 7 'is separated and the excess flash 30' formed in the hollow container 28 'is removed. To form a complete hollow container 28 '. The cutting by the cutter 25 'may be made after the step shown in FIG. 3B.

4 is a partially cutaway perspective view showing a hollow container 28 'having a conventional longitudinal tint gradient having an up-and-down continuous tint gradient formed by the conventional molding apparatus of FIG. 1, the body being a first resin ( 22 '), the second resin 23' and the third resin 24 'are sequentially laminated, and the thickness t of the layer made of the third resin 24' is the hollow container 28 '. Since the hollow container 28 'is gradually thickened or gradually thinned along the axial direction (longitudinal) of the gradient in the longitudinal direction, gradually fading or thickening along the axial direction (longitudinal), The tone effect will appear.

However, all mentioned prior arts, including the above-mentioned prior art, suggest a gradation container in which all have only a gradation gradient only in the vertical direction in all of them, as described above, and are continuous or cascade in the horizontal and horizontal directions. Multicolored vessels with a hue gradient are not implied or suggested at all, and furthermore, at least one transparent portion in the longitudinal or helical direction and / or in a monochromatic tone different from the hue of the continuous or cascaded gradient described above. There is also no known multicolor crude container with at least one colored layer.

Accordingly, a first object of the present invention is to provide a new type of multicolor container with increased design freedom by giving the blow molded container itself a continuous color gradient in the transverse direction (ie container left and right directions).

It is a second object of the present invention to provide a new type of multicolor container with increased design freedom by the blow molded container itself imparting a cascaded color tone gradient in the transverse direction (ie container left and right direction). will be.

A third object of the invention is that the blow molded container itself has at least two shades left and right and each of said at least two shades provides a continuous shade gradient in the longitudinal direction (i.e., the up and down (length) direction of the vessel). Eggplant is to provide a new type of multicolor container with increased design freedom.

The fourth object of the present invention is to provide a transparent layer for checking the contents or consumption in use at least at one point while the blow-molded container itself has a continuous tone gradient in the longitudinal direction (ie, the vertical direction of the container). To provide a new type of multicolor container with increased design freedom imparted in the longitudinal direction.

The fifth object of the present invention is to ensure that the blow molded container itself has a continuous tone gradient in the longitudinal direction (i.e., the up and down (length) direction) of the container, and at least one of the contents to check the contents or consumption during use. To provide a new type of multicolor container with increased design freedom in which the transparent layer is formed in the longitudinal direction and further imparted a longitudinal monotone color layer (colored portion) having a color tone different from that of the above-described continuous gradient. It is for.

A sixth object of the present invention is that the blow molded container itself has a continuous color tone gradient in the longitudinal direction (ie, the up and down (length) direction of the container), and a plurality of color tone different from the color tone having the continuous gradient described above. It is to provide a new type of multicolor container with increased design degrees of freedom in which monochromatic striped color layers of are further imparted at equal intervals along the longitudinal direction.

A seventh object of the present invention is a plurality of stripe shapes in which the blow molded container itself has a continuous tone gradient in the longitudinal direction (ie, the vertical direction of the container), and is formed at equal intervals along the longitudinal direction. It is to provide a new type of multicolor container with an increased degree of design freedom imparted with a transparent layer of.

An eighth object of the present invention is that the blow molded container itself has a continuous or cascaded color tone gradient in the transverse direction (i.e., the container left and right direction) in at least some areas, and at least in some areas in the longitudinal direction (i.e. A continuous translucent gradient in the vertical direction of the vessel, the longitudinal transmissive layer for checking the contents or consumption at the time of use and / or the continuous or cascaded gradient in the transverse direction as described above To provide a new type of multicolor container with increased design freedom further imparted to at least one longitudinal monotone color layer having a color tone different from a color tone having a color tone or a color tone having a continuous gradient in the longitudinal direction described above. .

The ninth object of the present invention is that the blow-shaped container itself or independently of the above-mentioned objects may be formed in a spiral transparent layer or in a spiral direction and may have a continuous tone gradient in the longitudinal or transverse direction. It is to provide a multicolor container with increased design freedom imparted with a colored layer.

The tenth object of the present invention is to provide a multi-color container that can minimize the separate post-processing surface treatment process such as thermal transfer or printing or coating work using a separate device and the resulting cost in connection with the above-described object. will be.

According to a preferred aspect of the present invention for smoothly achieving the first object of the present invention described above, a color tone different from the color tone of the monochromatic color main resin layer forming the container body and the color tone of the main resin layer described above is provided. It is provided with a multicolor tone container formed of a continuous left and right color tone gradient color layer that is laminated to at least a portion of the outer periphery of the main resin layer and gradually reduced or increased in thickness to exhibit a color tone gradient due to the thickness difference.

According to one preferred aspect of the present invention for smoothly achieving the second object of the present invention, a main resin layer forming a container body and having a posterior leaf portion and a leaf leaf portion, At least two monochromatic color layers having different color tones and different color tones different from the main resin layer along the thin leaf portion of the main resin layer are formed as cascaded left and right color tone gradient colored layers formed in parallel in the longitudinal direction. Tint container is provided.

According to another preferred aspect of the present invention for smoothly achieving the second object of the present invention, having a leaf portion having a container body and having a step thickness difference with the rear lobe; Cascaded left and right hue gradients in which the monochromatic colored layers of different shades from the main resin layer are arranged in parallel in the longitudinal direction along the thickness of the main resin layer and the thin leaf portion of the main resin layer. There is provided a multicolor container formed from a colored layer.

According to a preferred aspect of the present invention for smoothly achieving the third object of the present invention, the main resin layer forming the container body, and formed in most of the outer periphery of the main resin layer described above, It is formed of a vertically continuous tone gradient colored layer having a thickness difference gradually, and a longitudinal monochromatic striped colored layer formed in the remaining partial region of the outer circumference of the main resin layer and having a different color tone from the above-mentioned continuous vertical tone gradient colored layer. A multicolor container is provided.

According to another preferred aspect of the present invention for smoothly achieving the third object of the present invention, a semi-circular region on the left and right sides forming a main resin layer forming the container body and half of the outer periphery of the main resin layer is formed. There is provided a multicolored container which is formed of two up and down successive tonal gradient color layers of mutually different tones each formed and having a thickness difference toward the bottom of the container body.

According to a preferred aspect of the present invention for smoothly achieving the fourth object of the present invention described above, a transparent main resin layer forming a container body, a basic colored resin layer laminated on the outer periphery of the transparent main resin layer; The transparent main layer is laminated on the outer periphery of the basic colored resin layer and penetrates through the upper and lower continuous color tone gradient color layers having a thickness difference toward the lower side of the container body, and the basic colored resin layer and the vertical color gradient layer continuously up and down. A multicolored vessel having at least one longitudinal transparent layer connected to a resin layer is provided.

According to another preferred aspect of the present invention for smoothly achieving the fourth object of the present invention, an opaque or semitransparent main resin layer forming a container body, and a container body laminated on the outer periphery of the main resin layer There is provided a multicolor tone container having a vertically continuous color tone gradient colored layer having a thickness difference downward, and at least one longitudinal transparent layer penetrating the above-mentioned vertical color tone gradient colored layer and the main resin layer.

According to one preferred aspect of the present invention for smoothly achieving the fifth object of the present invention, a transparent main resin layer forming a container body, and a basic colored resin layer laminated on a part of the outer periphery of the transparent main resin layer. And a transparent layer formed on the outer circumferential edge of the basic colored resin layer and penetrating the upper and lower continuous color tone gradient color layers having a thickness difference toward the lower side of the container body, and through the basic color resin layer and the vertical color tone gradient color layer. At least one longitudinal transparent layer connected to the main resin layer, and the above-described continuous continuous color gradient coloring in the remaining regions except for the regions in which the upper and lower continuous color tone gradient color layers and the at least one longitudinal layer are formed in the outer periphery of the transparent main resin layer. Monochromatic tone in vertical and vertical directions having a different color tone from the layer or the same color tone as the basic colored resin layer The multi-tone vessel chromatographic are formed is provided.

According to a preferred aspect of the present invention for smoothly achieving the sixth object of the present invention described above, the main resin layer forming the container body and the same interval in the longitudinal direction along the outer periphery of the main resin layer The main resin layer is formed of a plurality of stripe shapes and formed of a continuous color tone gradient coloring layer having a thickness difference toward the bottom of the container body, and is exposed between the plurality of stripe shape vertical successive gradient color layers. A multicolored vessel is provided which forms a plurality of longitudinally monotone striped color layers of mutually equal spacing.

According to a preferred aspect of the present invention for smoothly achieving the seventh object of the present invention described above, the transparent main resin layer forming the container body and the same intervals in the longitudinal direction along the outer periphery of the transparent main resin layer A base colored resin layer laminated in a plurality of stripe shapes of the upper and lower layers formed on the outer surface of the base colored resin layer described above and formed in a plurality of stripe shapes of equal intervals in the longitudinal direction having a thickness difference toward the bottom of the container main body. There is provided a multicolored container in which a plurality of transparent layers are formed between the continuous color tone gradient color layer and the above-described basic colored resin layer and wherein the plurality of stripe-shaped up and down continuous color tone gradient color layers are formed.

According to a preferred aspect of the present invention for smoothly achieving the eighth object of the present invention, a color tone different from the main resin layer along a part of the outer periphery of the main resin layer and the main resin layer forming the container body. And a cascaded left and right color tone gradient colored layer formed by arranging at least two monochromatic color layers having different color tones different from each other in the longitudinal direction, and the above-described main resin layer and the cascaded left and right color tone gradient colored layers; Is a different color tone, which is laminated on a part of the outer periphery of the main resin layer, and is formed of a continuous color tone gradient colored layer having a thickness difference toward the bottom of the container body, and a transparent layer formed on the remaining part of the outer periphery of the main resin layer. A multicolor container is provided.

According to another preferred aspect of the present invention for smoothly achieving the eighth object of the present invention described above, the main resin layer forming the container body is different from the main resin layer along a part of the outer periphery of the main resin layer. Cascaded left and right color tone gradient colored layer formed by arranging at least two monochromatic color layers having different color tones different from each other as color tones in the longitudinal direction, and the above-described main resin layer and cascaded left and right color tone gradient colored layers The color tone is different from the above, and is laminated on a part of the outer periphery of the main resin layer and formed on the upper and lower continuous color tone gradient colored layers having a thickness difference toward the bottom of the container body, and the remaining part of the outer periphery of the main resin layer. Longitudinal monotone stripe complexion with different hue than the left and right gradation color gradient layer The multi-tone container is formed in a layer are provided.

According to a preferred aspect of the present invention for smoothly achieving the ninth object of the present invention described above, in the above-described aspect, the cascade-type left-right tonal gradient color layer, the longitudinal monotone striped color layer, or the transparent layer is There is provided a multicolor container with increased design freedom formed in a helical direction.

The tenth object of the present invention described above can be smoothly achieved by a multicolor container having increased design freedom according to the above-described aspects.

The multicolored container according to the present invention has a main resin layer constituting the container body and a continuous or cascade color tone gradient colored layer of left and right tones, or optionally independently or dependently described above. At least one transparent layer in the longitudinal and / or helical direction or independently or dependently of the resin layer and the continuous up-down color tone gradient color layer, or in a color tone different from that of the continuous or cascaded gradient described above. It can be formed with other continuous or cascaded color tone gradient colored layer or at least one monochromatic colored layer, so that the degree of freedom of design of the container itself produced by blow molding can be significantly increased, and the resin forming the outer appearance of the container can be formed. Since its own color tone is multicolored and expresses beautiful high quality taste, demand can be increased. In addition, after the production of the container itself, it is possible to minimize the separate post-processing surface treatment process such as thermal transfer or printing or coating work using a separate device, and if the transparent layer or transparent portion is selectively formed, the contents contained in the container at the product sales stage. It is possible to check the naked eye directly without opening the container and can easily check the degree of consumption of the contents even when purchasing and using it.

Hereinafter, the present invention will be described in detail.

The multicolored container according to the present invention is produced by blow molding (or blow molding), the main resin layer, the continuous or cascaded left and right color tone gradient colored layer, the longitudinal monotone striped coloring The formation of the layer or transparent layer is made by using a screw extruder of L / D 20 or more for uniform and sufficient plasticization, and the formation of continuous color tone gradient colored layers is performed by using an injection machine that is easy to control pressure precisely. The homogeneous color tone gradient expression of the up and down continuous color tone gradient color layer by control is aimed at, and it manufactures using the die head of a unique structure as mentioned later.

In addition, as a typical type of resin applicable to the production of the multicolor tank container according to the present invention, polyacetal resin (compression ratio: 3.1-3.5), ionomer (compression ratio: 3.4-4.0), polycarbonate (compression ratio) : 2.0-3.0), high density polyethylene (compression ratio: 3.2-3.6), low density polyethylene (compression ratio: 3.2-3.8), polyvinyl chloride (compression ratio: 2.0-3.0), polypropylene (compression ratio: 3.5-4.0), and the like. have.

Meanwhile, in the case of polyethylene terephthalate, which is widely used as a food packaging container because of its transparency, durability, heat resistance, reproducibility, non-toxicity, and chemical resistance, it is injection molded into a preform in which a bottleneck is formed in advance, and then PET-G (glycol modified polyethylene terephthalate: softening point about 83 ° C, heat deformation temperature about 70 ~ 74 ° C, Rockwell hardness about 115, specific gravity of about 1.27, light transmittance of about 90%) can be preferably applied because it can be manufactured as a hollow container by direct blow molding without the need to mold the preform.

Subsequently, the term 'vessel or container' as used throughout the specification of the present invention is usually meant to refer to a hollow bottle made by blow molding, but must The present invention is not limited thereto, and is defined as including all of the arbitrary forms that are manufactured in a hollow form by blow molding.

On the other hand, the term 'tone' is dark or light in color, and is approached from three perspectives of hue, lightness, and saturation. Brightness is defined as meaning associated with saturation, indicating the degree of purity of the hue.

Thus, the term 'multicolored container' means that the container itself produced by blow molding is multicolored, the same color varying in brightness only, the same color varying in saturation only, or a surface in which they are mixed. It is defined as a container having.

In addition, the term 'gradation of tone', unless specifically defined otherwise, is characterized by a gradual cascade in which the color tone of the outer surface of the container changes naturally continuously up and down or left and right or is intermittent from side to side. It is defined as changing.

As used throughout this specification, the term 'left and right hue gradient colored layer' is orthogonal thereto from any vertical line connecting the top and bottom of the container passing through that point at any point on its outer circumferential surface in the upright state of the container. Continuous or cascaded from side to side along the outer circumference along the outer circumference in the region between any vertical line connecting the upper and lower ends of the vessel passing through that point at any other point on the outer circumference that has moved an arbitrary distance along the outer circumference in the direction A hue gradient of is formed and the hue at all points on any of the same vertical lines described above is defined by the same colored layer.

As used herein, the term 'cascade left and right hue gradient colored layer' refers to a different hue difference, preferably a similar series of colors in the upright state of the container, or a brightness difference as the same color , Or left to right, in which at least two, preferably three or more stepwise monochromatic colored layers having different chromas as the same color, or arbitrarily combined thereof, are formed arranged side by side in the longitudinal direction in the form of stripes parallel to each other. It is defined as the colored layer which shows a typical color tone difference.

In addition, the term 'top and bottom gradient gradient colored layer' as used throughout this specification is defined by the term 'left and right gradient gradient colored layer' from the bottom to the top of any same vertical line connecting the top and bottom of the container. While a continuous color tone gradient is formed up and down, the color tone at the same height is defined as the same colored layer in the region between any one vertical line and any other vertical line described above.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

5 is a perspective view showing an example of a molding apparatus 100 that can be applied to the production of a multi-color container according to the present invention, showing an example in which one main extruder 110 and two auxiliary injectors 200 are applied. If necessary, one main extruder 110, one to four auxiliary extruders 110a, and one auxiliary extruder 200 may be used as shown in FIG. 6, which is the multicolor container of the present invention to be manufactured. The specific die head 300 can be selected and appropriately selected and used according to the color tone expression aspect of the present invention.

The molding apparatus 100 of FIG. 5 includes a main extruder 110 configured to melt-extrude the main resin layer forming resin forming the inner side of the container through the main hopper 111 and to form a color gradient gradient layer forming the outer side of the container. It consists of an auxiliary injection machine 200 for injecting the resin resin to the variable injection amount precisely controlled through the injection speed control valve 220, the die head 300 and the blow mold 130 of a specific configuration, and reference numerals in the drawings 120 is a blow cylinder.

FIG. 6 is a schematic top plan view of another example of the molding apparatus 100 of FIG. 5, in which a main extruder 110, four auxiliary extruders 110a, and one auxiliary extruder 200 are attached to the die head 300. In the drawings, reference numeral 111 denotes a main extruder hopper, 111a denotes an auxiliary extruder hopper, 112a denotes an extrusion speed control valve, 210 denotes an auxiliary injection machine hopper, and 220 denotes an injection speed control valve.

7A to 7D are front views of the multicolor container 1a, 1b, 1c, 1d respectively having a continuous left and right color tone gradient according to the first embodiment of the present invention, and the multicolor container 1a, 1b of the present invention shown. , 1c, 1d consists of the container body 2 and the neck portion 3, and the surfaces of the body 2 and the neck portion 3 have a dark color tint layer 4, a middle color tint layer 5, and And a continuous left and right color tone gradient color layer 7 composed of a light color tone color layer 6.

FIG. 8 is a cross sectional view of a Parison 10 immediately before blow molding into a multicolor vessel 1a, 1b, 1c, 1d having a continuous left and right color tone gradient of FIGS. 7A-7D, extruded from the main extruder. Extruded by the main resin portion 11 and the auxiliary extruder of the same thickness is laminated on the outer peripheral surface of the main resin portion 11 and composed of continuous left and right color tone gradient coloring portion 15 having a gradually increased or decreased thickness do.

The thickness of the continuous right and left hue gradient coloring portion 15 is in the order of t1 > t2 > t3, the portion adjacent to the thickest thickness t1 is the dark hue coloring portion 12, and the portion adjacent to the middle thickness t2 is the middle tone coloring. The portion 13 adjacent to the thinnest thickness t3 forms the pale tint colored portion 14.

Thus, in the illustrated example, the peak portion where the I and IV quadrants meet is the dark tint colored portion 12, the horizontal portion where the I and II quadrants meet the III and IV quadrants is the middle tone colored portion 13, and II and Near the lowest point where the III quadrants meet, a pale tint colored portion 14 is formed.

Alternatively, the part of the outer peripheral surface of the main resin part 11 may be extruded in a state in which the continuous left and right color tone gradient coloring parts 15 are not laminated. In this case, the continuous left and right color tone gradient coloring parts 15 are not laminated. The portion of the main resin portion 11 is exposed to the outside, and this exposed portion represents the monochromatic tone of the main resin portion 11 itself.

As a result, the multicolored container 1a, 1b, 1c, 1d of the present invention shown in FIGS. 7A to 7D produced by blow molding of the Ferrison 10 shown in FIG. 8 forms the container body 2. 7A to 7D, and the color tone of the main resin layer, which is different from the color tone of the main resin layer, is gradually reduced or increased along at least a portion of the outer periphery of the main resin layer. It is formed of successive left and right color tone gradient colored layers 7 which are stacked in thickness and exhibit a color tone gradient due to the thickness difference.

As described above, the continuous left and right hue gradient coloring layer 7 may be prevented from being laminated on a part of the outer circumference of the monochromatic bath main resin layer, and in this case, the hue of the monochromatic bath main resin layer is expressed externally in the form of vertical stripes. Will be.

The thickness of the main resin layer in the above-described multicolored vessels 1a, 1b, 1c, 1d and other multicolored vessels described below is about 500 to 2000 µm, preferably 800 to 1200 µm, and is continuous. Alternatively, the thickness of the cascaded left and right color tone gradient colored layer or the vertical continuous color tone gradient colored layer may be in the range of 0 to 1000 μm, preferably 0.1 to 1000 μm, and specifically 200 to 600 μm.

Typically, a lighter color tone is used for the main resin layer, and a darker color tone is used for the color tone gradient colored resin layer. For example, a milky white color may be generally used for the main resin layer.

9 is a cross-sectional view of an extrusion die head 300 of a molding apparatus according to the present invention for producing a multicolor container 1a, 1b, 1c, 1d having a continuous left and right color tone gradient as shown in FIGS. 7A-7D. As a structure of the die head 300, the first and second fasteners 302 and 303 are sequentially mounted around the mandrel 350, and the main extruder 110 is disposed inside the body 301. Extrudes the molten main resin through the first flow path 311 via the first annular flow path 310 formed between the first fastener 302 and the second fastener 303, the auxiliary extruder (110a) The molten colored resin is extruded through the second flow path 321 via the second annular flow path 320 formed between the 301 and the second fastener 303.

The lower end of the mandrel 350 is formed of an eccentric head 352 to guide the molten colored resin passing through the second flow path 321 to have a thickness difference as shown in FIG.

Specifically, the main resin extruded from the main extruder 110 is led to the main resin layer (inner layer) constituting the container body, and the colored resin extruded from the auxiliary extruder 110a is laminated on the outer circumferential surface of the main resin layer. To a continuous left and right hue gradient colored layer (see 7 in FIGS. 7A-7D).

At this time, the continuous left and right color tone gradient coloring layer has the thickness of the continuous left and right color tone gradient coloring portion 15 in the order t1 > t2 > t3 as shown in FIG. 8 by the eccentric head 352 of the mandrel 350. Extruded in the form of Ferrison.

FIG. 10 is a front view of a multicolor container 1e having a cascaded left and right color tone gradient according to a second embodiment of the present invention, in which the multicolor container 1e of the present invention is shown as a container body 2; ) And the neck portion 3, and the surfaces of the main body 2 and the neck portion 3 are composed of a dark color tint layer 4, a middle color tint layer 5, and a light color tint layer 6. It consists of the cascaded left-right color tone gradient coloring layer 7a.

11A and 11B are cross-sectional views of the Ferison 10 immediately before blow molding into the multicolor container 1e having the cascaded left and right color tone gradients of FIG. 10, respectively.

The ferry 10 shown in Fig. 11A is colored in different shades from the main resin portion 11 having the posterior lobe 11a and the thin leaf 11b extruded from the main extruder. It is extruded by three auxiliary extruders which extrude resin, is laminated | stacked on the outer peripheral surface of the thin leaf part 11b of the said main resin part 11, and is formed as the cascade type left-right color tone gradient coloring part 15a.

In the illustrated example, the cascaded left and right hue gradient coloring sections 15a have the same thickness and consist of a dark hue coloring section 12, a middle hue coloring section 13, and a light hue coloring section 14, but a cascade. At least two or more auxiliary extruders constituting the left-right color tone gradient coloring part 15a may be sufficient, and preferably three or more, and as the number of auxiliary extruders increases, the cascaded left and right color tone The number of tones forming the gradient coloring section 15a also increases by that amount.

Therefore, in the illustrated example, the area indicated by the upward double arrow indicates the color tone of the main resin part 10 itself, and the area indicated by the downward double arrow indicates the cascaded left and right tone gradient.

As a result, the structure of the multicolored container 1e of the present invention shown in FIG. 10 manufactured by blow molding of the Ferryson 10 shown in FIG. 11A forms the container body 2 and the rear lobe portion. ) Hue difference which is different from the main resin layer (not shown) which has 11a and the leaf part 11b, and a color tone different from a main resin layer along the said leaf part 11b of said main resin layer. Cascade-type left and right color tone gradient color layer in which the dark color tone coloring part 12, the intermediate color tone coloring part 13, and the light color tone coloring part 14 as the monochromatic color layer having the same color are arranged in parallel in the longitudinal direction. 7a).

Optionally, the ferrison 10 shown in Fig. 11B has a main resin portion 11 having a thin leaf portion 11b having a stepwise thickness difference from the rear leaf portion 11a extruded from the main extruder, It is formed by a cascade-type left and right color tone gradient colored portion 15a which is extruded by only one auxiliary extruder for extruding the colored resin and laminated so as to have a stepwise thickness difference on the outer circumferential surface of the thin leaf portion 11b.

In the illustrated example, the thickness of the cascaded left and right tonal gradient colored portions 15a is cascaded, and the large portion forms the dark shaded portion 12 and the middle portion is medium. The portion having a small thickness, which forms the color tone coloring portion 13, forms a light color tone coloring portion 14.

As a result, the other structure of the multicolor container 1e of the present invention as shown in Fig. 10 produced by blow molding of the Ferryson 10 shown in Fig. 11b forms the container body 2, Stepwise thickness difference between the main resin layer having the thin leaf portion having a step thickness difference and the monochromatic color layer of the color tone different from the above main resin layer along the outer peripheral edge of the thin leaf portion having the step thickness difference of the main resin layer described above. And a cascaded left and right hue gradient coloring layer 7a arranged in parallel in the longitudinal direction to form a dark hue coloring portion 12, a middle hue coloring portion 13, and a light hue coloring portion 14. The boundary between the color tone coloring portion 12, the medium color tone coloring portion 13, and the light color tone coloring portion 14 is not clearly distinguished and exhibits a cascaded left and right tone gradient in a somewhat ambiguous pattern.

FIG. 12A shows a molding apparatus for extruding the Ferrison 10 as shown in FIG. 11A for producing the multicolored container 1e according to the present invention having a cascaded left and right color tone gradient as shown in FIG. 10. As a cross-sectional view of the extrusion die head 300, the structure of the die head 300 is the first and second fasteners 302,303 inside the body 301 is sequentially mounted around the mandrel 350 (mandrel) As a structure, the main extruder 110 extrudes the molten main resin through the first flow passage 311 via the first annular flow passage 310 formed between the first fixture 302 and the second fixture 303. , Three auxiliary extruders 110a are formed between the body 301 and the second fastener 303, respectively, and are separated by a partition (not shown), the second left annular flow path 320a and the second central annular flow path. 320b, the second left flow passage 321a, the second center flow passage 321b, and the second right flow passage (via the second right annular flow passage 320c). The melted colored resin is extruded through 321c).

Here, the second left annular flow passage 320a and the second left flow passage 321a communicate with each other, and the second central annular flow passage 320b and the second central flow passage 321b separated by the partition wall also communicate with each other. In addition, the second right annular flow passage 320c and the second right flow passage 321c separated by the partition wall also communicate with each other.

On the other hand, the lower end of the mandrel 350 is formed of an uneccentric circular head 351.

FIG. 12B is a cross-sectional view taken along line BB of FIG. 12A, wherein a first fastener 302 is positioned at an outer circumference of the mandrel 350 in the center, and is formed between the first fastener 302 and the second fastener 303. The flow path 311 is formed by the annular protrusion 303a on the inner surface of the second fastener, so that the thin leaf portion 11b of the main resin portion 11 of the ferrison 10 as shown in FIG. It can be formed by). On the other hand, on the outer circumferential surface corresponding to the inner circumferential surface portion where the annular protrusion 303a of the second fastener 303 is formed, the second left flow passage 321a, the second central flow passage 321b, Two right flow passages 321c are formed, whereby the cascaded left and right tonal gradient coloring portions 15a of the Ferison 10 as shown in FIG. 11A are formed by the three auxiliary extruders 110a in FIG. 12A. Can be formed.

FIG. 12C is a view similar to the cross-sectional view taken along line BB of FIG. 12A showing the die head structure for manufacturing the Ferrison 10 shown in FIG. 11B, wherein the first fastener 302 is formed at the outer circumference of the central mandrel 350. The first flow path 311 positioned and formed between the first fastener 302 and the second fastener 303 includes a first step portion 303b and a second step, in which the protruding height of the second fastener inner surface is increased stepwise. By the part 303c and the 3rd step part 303c, the main resin part 11 of the ferrison 10 as shown in FIG. 11B can be formed by the main extruder 110 as shown in FIG. 12A. . On the other hand, the second left flow passage communicating with each other on the outer circumferential surface corresponding to the inner circumferential surface portion where the first step portion 303b, the second step portion 303c, and the third step portion 303c of the second fastener 303 are formed. 321a, a second central flow passage 321b, and a second right flow passage 321c are formed, whereby the cascaded left-right hue gradient coloring portion 15a of the Ferison 10 as shown in FIG. 11B is formed. It can be formed with only one auxiliary extruder (as opposed to using three auxiliary extruders 110a in FIG. 12A).

13A to 13E are front views of the multicolor container 1f, 1g, 1h, 1i, 1j, respectively, having a vertical gradation tonal gradient according to a third embodiment of the present invention and formed in right and left dichroism, respectively. Among the multicolored vessels 1f, 1g, 1h, 1i, and 1j, the multicolored vessels 1f, 1g and 1h of the present invention have a dark tint colored layer 4 under the container body 2, and a middle tint colored layer in the middle. (5), the upper part and the neck part 3 are the species which have a different color tone from the up-and-down continuous color tone gradient coloring layer 8 which consists of the light color tone coloring layer 6, and the above-mentioned up-and-down continuous color tone gradient coloring layer 8. The multicolored vessels 1i, 1j of the present invention are formed of a directional monochromatic striped colored layer 9, and two upper and lower continuous color tone gradient colored layers having mutually different tones separated into semicircular halves of the container body 2. Each of the upper and lower consecutive color tone gradient colored layers 8 is formed of (8), and the lower part of the container body 2 is a dark color tone colored layer 4, Halftoning unit coloring layer 5, the upper portion and the neck portion (3) is made of a light tone color layer (6).

14A and 14B show left and right bicolor multicolor tone vessels 1f, 1g and 1h having the up and down continuous color tone gradients of FIGS. 13A to 13C, respectively, and left and right dichroic colors having the up and down continuous color tone gradients of FIGS. 13D and 13E. Fig. 1 is a cross sectional view of the Ferison 10 immediately before being blue-wooled into the color tone containers 1i and 1j.

First, FIG. 14A shows a monochromatic colored portion 17 extruded from the main extruder, the same thickness of the main resin portion 11, a partial extruder extruded by the auxiliary extruder, and laminated on a part of the outer circumferential surface of the main resin portion 11 described above. , The continuous up and down gradient gradient coloring part having a thickness gradually increased or decreased by being injected in a controlled variable amount on the area except the monochromatic color coloring part 17 of the outer circumferential surface of the main resin part 11 by the auxiliary injection machine ( 16).

The injection speed range from initial to boil by the auxiliary injection machine ranges from 10 m / min to 1 mm / min or vice versa from 1 mm / min to 10 m / min. When the initial injection amount is high and the final injection amount is small, the above-described continuous up and down tone gradient coloring unit 16 shows a continuous tone gradient that becomes darker downward and becomes lighter toward the upper side, and when the initial injection amount is low and the boil injection amount is high, the above-described continuous up and down tone gradient The coloring part 16 shows the continuous hue gradient which becomes light downward and becomes thicker upward.

Therefore, the area bounded by the upward double arrow indicates the hue gradient according to the thickness change of the colored layer in the vertical direction of the container body by decreasing or increasing the lamination thickness from the lower side of the container body to the upper side during blow molding. The area bounded by the double-headed arrow will represent monochromatic stripes.

As a result, the structure of the multicolor container 1f, 1g, 1h of the present invention as shown in Figs. 13A, 13B, and 13C produced by blow molding of the Ferrison 10 shown in Fig. 14A is a container body. (2) the main resin layer (not shown), and the upper and lower continuous color tone gradient colored layer (8) which is formed in most of the outer circumferential edges of the main resin layer and has a thickness difference toward the lower side of the container body (2). And the longitudinal monochromatic stripe colored layer 9 which is formed in the remaining partial region of the outer periphery of the main resin layer and has a color tone different from the above-described up and down continuous color tone gradient colored layer 8.

Subsequently, FIG. 14B is a controlled amount in the semi-circular regions on the left and right sides of the outer circumferential surface of the main resin portion 11 described above by the same thickness of the main resin portion 11 extruded from the main extruder and the two auxiliary injectors. It consists of two successive top and bottom gradient gradient colorings 16a, 16b that are injected to have a thickness gradually increasing or decreasing.

Therefore, each of the regions bounded by the upper and lower semi-circular bidirectional arrows has a reduced or increased lamination thickness from the lower side to the upper side of the container body during blow molding, so that the gradient of the color layer in accordance with the thickness change of the colored layer in the vertical direction of the container body is increased. Will be displayed.

As a result, the structure of the multicolor container 1i, 1j of the present invention as shown in Figs. 13D and 13E produced by blow molding of the Ferrison 10 shown in Fig. 14B forms the container body 2. Two upper and lower sides of mutually different tones each formed in a semi-circular region on the left and right sides forming a half of the outer periphery of the main resin layer, and having a thickness difference toward the lower side of the container main body 2. It is formed of the continuous color tone gradient color layer 8, and the color tone of the left half of the container and the right color of the right half are different so that the continuous up and down color tone gradients are displayed.

FIG. 15A is a cross-sectional view of an extrusion die head 300 of a molding apparatus for producing a multicolor container of right and left dichroic colors having the up and down continuous color tone gradients of FIGS. 13A to 13C, and FIG. 15C is a cross-sectional view taken along the line BB in FIG. FIG. 15B is a cross-sectional view of the extrusion die head 300 of the molding apparatus for manufacturing the left and right bicolor multicolored container having the vertical continuous color tone gradients of FIGS. 13D and 13E. FIG. 15D is a cross-sectional view taken along the line BB in FIG. 15B.

First, FIG. 15A shows a method for extruding the ferrison 10 as shown in FIG. 14A for manufacturing the multicolor container 1f, 1g, 1h of the present invention as shown in FIGS. 13A, 13B, and 13C. As a cross-sectional view of the extrusion die head 300 of the molding apparatus, the structure of the die head 300 is a third, first, second fixtures 304, 302, 303 inside the body 301 is a mandrel 350 (mandrel) The main extruder 110 is a first flow path via the first annular flow path 310 formed between the third fastener 304 or the mandrel 350 and the first fastener 302. The molten main resin is extruded through 311 to form the main resin portion 11 in FIG. 14A, and one auxiliary extruder 110a is formed between the first fastener 302 and the second fastener 303. The second flow path 321 via the second annular flow path 320 which is formed along a restricted region where there is no annular blockage (see reference numeral 302a in FIG. 15C). The molten colored resin is extruded through to form the monochromatic colored portion 17 in FIG. 14A, wherein one auxiliary injection machine 200 is formed between the body 301 and the second fastener 303, and the second flow path described above. Melted through the third flow path 331 via the third annular flow path 330 formed along the region where the annular blockage portion (see reference numeral 303e in FIG. 15C) on the side opposite to 321 does not exist. The colored resin is injected in a controlled amount to form the continuous up-and-down gradient coloration 16 in FIG. 14A.

15C is a cross-sectional view taken along the line CC in FIG. 15A. In the illustrated example, the first flow path 311 is formed in an annular shape by the inner mandrel 350 and the inner peripheral surface of the first fastener 302 in the center, and the second flow path. 321 is formed in a short arc by the outer circumferential surface of the first fastener 302 does not exist and the inner circumferential surface of the second fastener 303, the third flow path 331 is a second fastener ( The annular occlusion portion 303e of the 303 is formed in a long arc shape by the outer circumferential surface and the body 301 which are not present, and are alternately positioned with the second flow path 321 alternately.

Fig. 15B is then an extrusion die of a molding apparatus for extruding the ferrison 10 as shown in Fig. 14B for producing the multicolor container 1i, 1j of the present invention as shown in Figs. 13D and 13E. As a cross-sectional view of the head 300, the structure of the die head 300 is a third, first, second fixtures 304, 302, 303 inside the body 301 is sequentially mounted around the mandrel 350 (mandrel) The main extruder 110 has a first flow passage 311 via the first annular flow passage 310 formed between the third fastener 304 or the mandrel 350 and the first fastener 302. The molten main resin is extruded to form the main resin portion 11 in FIG. 14B, and an upper one of the two auxiliary injectors 200 is formed between the first fixture 302 and the second fixture 303. A semicircular second annular flow path 320 formed along an area where no semicircular annular blockage portion (see reference numeral 302a in FIG. 15D) is present is formed. The molten colored resin is injected in a controlled amount through the semicircular second flow path 321 passing through to form a continuous up and down gradient gradient coloring portion 16a in FIG. 14B, and is located at the lower side of the two auxiliary injectors 200. The other is formed between the body 301 and the second fastener 303, and there is no semicircular annular blockage portion (see reference numeral 303e in FIG. 15D) opposite to the second flow path 321 described above. The molten colored resin is injected in a controlled amount through the third flow passage 331 via the third annular flow passage 330 formed along the region to form the continuous up and down gradient gradient coloring portion 16b in FIG. 14B. .

15D is a cross-sectional view taken along the line DD in FIG. 15B. In the illustrated example, the first flow path 311 is formed in an annular shape by the mandrel 350 in the center and the inner circumferential surface of the first fastener 302, and the second flow path. 321 is formed in a semicircular shape by the outer circumferential surface of the first fastener 302 and the inner circumferential surface of the second fastener 303 where the semicircular annular obstruction 302a does not exist, and the third flow path 331 is a second fastener ( The semicircular annular obstruction 303e of 303 is formed in a semicircular shape by the outer circumferential surface and the body 301 which are not present, and are alternately positioned with the second flow path 321 alternately.

16A and 16B are front views of the multicolor container 1k, 1L having the vertical continuous color tone gradient 8 and the transparent layer 9a, respectively, according to the fourth embodiment of the present invention. (1k, 1L) is formed of the container body 2 and the neck portion 3, the lower portion is a dark tint colored layer 4, the middle portion is a middle tint colored layer 5, the upper portion and the neck portion 3 It is formed by the vertical continuous color gradient color layer 8 composed of the pale color tint layer 6 and at least one transparent layer 9a (in the example shown, each having two transparent layers).

17A and 17B are cross-sectional views of a Ferison 10 passing through an extrusion die head just before blow molding into a multicolor vessel (1k, 1L) having the up and down continuous color tone gradients and transparent layers of FIGS. 16A and 16B, respectively; 17A is an example of the case where transparent resin is used as the main resin part 11, and FIG. 17B is an example of the case where opaque resin is used as the main resin part 11.

The ferryson 10 shown in FIG. 17A is provided on a region other than the transparent main resin portion 11 extruded from the main extruder, two transparent portions 17a connected thereto, and the transparent portion 17a. The opaque monochromatic basic colored resin portion 18 extruded by the extruder and the colored resin having the same color tone or different color tones by one or two auxiliary injectors are the basic color number described above with a precisely controlled variable injection amount. It is formed by the continuous up-and-down gradient gradient coloring parts 16a and 16b ejected on the branch part 18. FIG.

The continuous up and down color tone coloring portions 16a and 16b described above have the same continuous up and down color tone gradient by injecting one auxiliary injection machine or injecting colored resins of the same color tone using two auxiliary injection machines, or two auxiliary Injecting colored resins of different tones mutually independently with an injection molding machine can also have different continuous up and down tone gradients.

In the illustrated example, each of the regions bounded by the upward and downward double arrows are reduced or increased in thickness from the lower side of the container body toward the upper side during blow molding, thereby increasing the color tone of the colored layer in the vertical direction of the container body. It will show a gradient.

As a result, the structure of the multicolored container 1k, 1L of the present invention as shown in Figs. 16A and 16B manufactured by blow molding of the Ferrison 10 shown in Fig. 17A forms the container body 2. A transparent main resin layer (not shown), a basic colored resin layer (not shown) laminated on the outer periphery of the main resin layer, and a base colored resin layer laminated on the outer periphery of the base colored resin layer At least one longitudinal transparent layer 9a connected to the transparent main resin layer through a vertically continuous color tone gradient colored layer 8 having a difference, and through the above-described basic colored resin layer and vertically continuous color tone gradient colored layer 8. Has

On the other hand, the ferrison 10 shown in Fig. 17b is an opaque or semi-transparent main resin portion 11 extruded from the main extruder, and extruded by two auxiliary extruders, respectively, and penetrates the main resin portion 11 described above. Two or more transparent parts 17a and colored resins having the same color tone or different color tones are injected at a precisely controlled variable injection amount by one or two auxiliary injectors on the region excluding the transparent part 17a. Continuous up and down color tone gradient coloring portions 16a and 16b.

The continuous up and down color tone coloring portions 16a and 16b described above have the same continuous up and down color tone gradients by injecting with one auxiliary injector or by injecting colored resins of the same color with two auxiliary injectors, or with two auxiliary As described above, it is also possible to have different continuous up and down color gradients by injecting colored resins of different tones independently from each other with an injection machine, and in the illustrated example, each of the areas bounded by the up and down double arrows are each The lamination thickness decreases or increases from the lower side of the container main body toward the upper side of the container main body, thereby exhibiting a color tone gradient according to the thickness change of the colored layer in the vertical direction of the container main body.

As a result, another structure of the multicolor container 1k, 1L of the present invention as shown in Figs. 16A and 16B manufactured by blow molding of the Ferrison 10 shown in Fig. 17B is used. An opaque or translucent main resin layer to be formed, an upper and lower continuous color tone gradient color layer 8 which is laminated on the outer periphery of the main resin layer and has a thickness difference toward the lower side of the container body, and the aforementioned upper and lower continuous color tone gradient color layer. At least one longitudinal transparent layer 9a penetrates both (8) and the main resin layer.

18A and 18B are front views of the multicolor container 1m, 1n having the vertical continuous color tone gradient layer 8, the transparent layer 9a, and the monochromatic color layer 9, respectively, according to the fifth embodiment of the present invention; As a perspective view, the multicolored container 1m, 1n of the present invention shown is formed of the container body 2 and the neck portion 3, the lower part of which is a dark tint colored layer 4, and the middle part is a middle tint colored layer 5 ), The upper part and the neck part 3 are the up-and-down continuous color tone gradient color layer 8 which consists of the light color tone layer 6, the monochromatic color layer 9, and the above-mentioned up-and-down continuous color tone gradient color layer 8 And at least one transparent layer 9a (each having two transparent layers in the illustrated example) which partition them between the monochromatic color layer 9.

19A and 19B are extruded immediately before blow molding into a multicolor vessel 1m, 1n having the continuous up and down color gradient layer 8, transparent layer 9a and monochromatic colored layer 9 of FIGS. 18A and 18B, respectively. Cross-sectional view of the Ferryson 10 passing through the die head, in which only one of the two consecutive up-and-down tone gradients 16a and 16b is continuously compared with the cross-sectional view of the Ferryson 10 shown in FIG. 17A. As an example in which the gradient portion 16 is formed and the other portion is formed only of the monochromatic tone colored portion 17 (that is, no continuous vertical tone gradient portion is laminated on the basic colored resin portion), As shown by the double-headed arrow, most of the area is formed by the continuous up and down gradation gradient part 16, and as shown by the downward double-headed arrow, only a part of the area is formed by the monochromatic color tone part 17. Is represented by the upward double arrow, The region of the portion is formed by the monochromatic tinted portion 17, and as shown by the downward double arrows, only a portion of the region is formed by the continuous up and down gradation gradient portion 16, except for the basic configuration described above. Since it is essentially the same as the case of Figure 17a further description thereof will be omitted.

As a result, the structure of the multicolored container 1o of the present invention as shown in Figs. 18A and 18B manufactured by blow molding of the Ferrison 10 shown in Figs. The main body of the container is laminated on the transparent main resin layer (not shown) to be formed, the basic colored resin layer (not shown) laminated on a part of the outer peripheral edge of the transparent main resin layer, and the outer peripheral edge of the basic colored resin layer. 2) at least one connected to the above-mentioned transparent main resin layer through the above-mentioned continuous color tone gradient color layer 8 having a thickness difference toward the lower side, and the above-described basic color resin layer and the above-mentioned layer color gradient 8 above and below The above and below continuous color tone gradients in the remaining regions except for the region in which the vertically transparent layer 9a and the above-mentioned transparent main resin layer are formed in the upper and lower continuous color tone gradients in the outer periphery of the colored layer 8 and at least one longitudinally transparent layer 9a. coloring 8 and is formed of a monochrome colored layer (9) in the vertical longitudinal direction having a different color tone.

Fig. 20 is a front view of the multicolor container 1o in which a plurality of up and down continuous color tone gradients and a plurality of monotone stripes are alternately arranged in accordance with a sixth embodiment of the present invention. Is formed of the container body 2 and the neck portion 3, the lower portion is a dark tint colored layer 4, the middle portion is a middle tint colored layer 5, and the upper portion and the neck portion 3 are light tinted colored layers ( A plurality of up and down continuous color tone gradient colored layers 8 consisting of 6) and a plurality of monochromatic stripe colored layers 9b are alternately arranged.

FIG. 21 is a perspective view of the Ferrison 10 immediately before blow molding into a multi-tone container 1o in which a plurality of vertically continuous color tone gradient layers 8 and a plurality of monotone striped colored layers 9b of FIG. 20 are alternately arranged. As the cross-sectional view, the colored resin is precisely controlled by the main resin part 11 having a plurality of rear lobe parts 11a which are extruded from the main extruder and spaced apart at regular intervals on the outer circumference thereof, and one auxiliary injection machine. A continuous vertical tone gradient colored portion of a plurality of longitudinal stripes, which are injected at variable injection amounts and are stacked between the plurality of posterior leaf portions 11a of the main resin portion 11 and spaced apart at regular equal intervals ( 16).

Here, the outer surfaces of the plurality of posterior leaf portions 11a which are formed to be spaced apart from each other at regular equal intervals on the outer circumference of the main resin portion 11 are mutually formed in the longitudinal direction of the outer surface of the multicolored container 1o by blow molding. The monochromatic stripe colored layers 9b arranged to be spaced apart from each other are formed, and the above-described up and down continuous color tone gradient colored layers 8 are positioned between the plurality of monochromatic stripe colored layers 9b arranged in the longitudinal direction. do.

In the illustrated example, each of the regions bounded by a plurality of bidirectional arrows shows a hue gradient according to a change in thickness of the colored layer in the vertical direction of the container body by decreasing or increasing the lamination thickness from the lower side of the container body to the upper side during blow molding. It is a vertical color continuous gradient layer 8.

As a result, the structure of the multicolored vessel 1o of the present invention as shown in FIG. 20 manufactured by blow molding of the Ferrison 10 shown in FIG. 21 has a main resin layer (which forms the container body 2). In other words, the tinted main resin layer) and a plurality of stripe shapes of equally spaced intervals in the longitudinal direction along the outer circumference of the main resin layer described above are formed, and the vertical successive gradation gradient having a thickness difference toward the lower side of the container body 2. The monochromatic stripe coloring in which the said main resin layer formed between the coloring layers 8 and the said main resin layer exposed between the above-mentioned multiple stripe-shaped up-and-down continuous color-gradation coloring layers 8 in multiple longitudinal directions of equal intervals mutually is mutually spaced. It is formed of layer 9b.

Fig. 22 is a perspective view of the multicolor container 1p having the vertical continuous color gradient and the alternating longitudinal transparent window according to the seventh embodiment of the present invention, wherein the multicolor container 1p of the present invention is shown. Is formed of the container body 2 and the neck portion 3, the lower portion is a dark tint colored layer 4, the middle portion is a middle tint colored layer 5, and the upper portion and the neck portion 3 are light tinted colored layers ( A plurality of up and down continuous color tone gradient colored layers 8 consisting of 6) and a plurality of longitudinal transparent layers 9a are alternately arranged.

FIG. 23 is a cross sectional view of the Ferison 10 immediately before blow molding into a multicolor container 1p having the up and down successive tonal gradients of FIG. 22 and the alternating longitudinal transparent layer, extruded from the main extruder and consistent at its outer periphery; A plurality of basic colorings laminated between the transparent main resin portion 11 having a plurality of rear lobes 11a spaced apart from each other, and a plurality of rear lobes 11a extruded from one auxiliary extruder. A plurality of resins 18 and a plurality of resins that are injected at a variable injection amount precisely controlled by one auxiliary injection machine are laminated on the plurality of basic coloring resin parts 18 and spaced apart at regular intervals. Is formed of continuous vertical tone gradient coloring portions 16 in the longitudinal stripe shape.

Here, the outer surfaces of the plurality of posterior leaf portions 11a which are formed to be spaced apart from each other at regular equal intervals on the outer circumference of the main resin portion 11 are mutually formed in the longitudinal direction of the outer surface of the multicolored container 1o by blow molding. The monochromatic stripe colored layers 9b arranged to be spaced apart from each other are formed, and the above-described up and down continuous color tone gradient colored layers 8 are positioned between the plurality of monochromatic stripe colored layers 9b arranged in the longitudinal direction. do. The posterior part 11a of the said main resin part 11 is the transparent part 17a.

In the illustrated example, each of the regions bounded by a plurality of bidirectional arrows shows a hue gradient according to a change in thickness of the colored layer in the vertical direction of the container body by decreasing or increasing the lamination thickness from the lower side of the container body to the upper side during blow molding. It is led to the continuous color tone gradient colored layer 8 above and below.

As a result, the structure of the multicolored container 1p of the present invention as shown in FIG. 22 manufactured by blow molding of the Ferryson 10 shown in FIG. 23 is a transparent main resin layer (not shown) forming the container body. ), A basic colored resin layer (not shown) laminated in a plurality of stripe shapes at equal intervals in the longitudinal direction along the outer periphery of the transparent main resin layer, and laminated on the outer surface of the basic colored resin layer. Up and down continuous color tone gradient colored layer 8 formed in a plurality of stripe shapes at equal intervals in the longitudinal direction having a thickness difference toward the lower side of the container body 2, and the above-mentioned basic colored resin layer A plurality of transparent layers 9a are formed between the stripe-shaped up and down continuous color tone gradient colored layers 8.

Fig. 24 is a perspective view of a multicolor container 1q having a cascaded left and right color tone gradient, a vertical continuous color tone gradient, and a transparent window according to an eighth embodiment of the present invention. ) Is made up of the container body 2 and the neck portion 3, and the surfaces of the body 2 and the neck portion 3 have a dark color tint layer 4, a middle color tint layer 5, and a dark color tint. Cascaded left and right color tone gradient color layer 7a composed of layer 6, continuous color tone gradient consisting of dark color tone layer 4, middle color tone layer 5, and dark color tone layer 6 It consists of the colored layer 8 and the transparent layer 9a.

In the eighth embodiment of the present invention described above, a monochromatic stripe colored layer may be formed instead of the transparent layer 9a.

FIG. 25 is a cross shaving of the Ferison 10 immediately before blow molding into a multi-color vessel 1q having a cascaded left and right color tone gradient, a continuous top and bottom color gradient, and a transparent window of FIG. 24, extruded from the main extruder. The main resin part 11 and the three auxiliary extruders, which are extruded, are laminated on a part of the outer circumferential surface of the main resin part 11, respectively, and the dark color tone part 12, the medium color tone part 13, and a light color tone. Cascade-type left and right color tone gradient coloring part 15a consisting of the coloring part 14 and the colored resin are injected at a variable injection amount precisely controlled by one auxiliary injection machine, and the other part of the main resin part 11 described above. Extruded from the other one auxiliary extruder and the continuous up-and-down gradient gradient coloring part 16 which is laminated | stacked on the outer peripheral surface, and which consists of the dark coloring part 12, the middle coloring part 13, and the light coloring part 14. Became It is formed due to the main resin portion 11 and the upper and lower continuous tone transparent part (17a) passing through the gradient colored portion (16). Here, the transparent part 17a may be replaced with a monotone striped color layer, of course.

In the illustrated example, the thickness of the cascaded left and right color tone gradient coloring portion 15a is the same, and the number of the auxiliary extruders constituting the cascaded left and right color tone gradient coloring portion 15a is preferably at least two or more, preferably It may be three or more, and as the number of auxiliary extruders increases, the number of tones forming the cascaded left and right color tone gradient coloring unit 15a also increases by that amount.

On the other hand, the cascaded left and right color tone gradient coloring portion 15a is stepwise controlled by using only one extruder in a manner substantially similar to that shown in FIG. 11B without using three auxiliary extruders. Substantially the same effect can also be obtained by laminating on the main resin portion 11, which is also within the scope of the present invention.

In the example shown, the area indicated by the double arrow on the top represents the transparent portion 17a, and the area indicated by the double arrow adjacent to both the left and right sides thereof decreases or increases the lamination thickness from the lower side to the upper side of the container body during blow molding. A continuous upper and lower hue gradient colored portion 16 showing a hue gradient according to the thickness change of the colored layer in the up and down direction of the container body is shown, and the area indicated by the downward double arrow indicates the cascaded left and right hue gradient colored portion 15a. Indicates.

As a result, the structure of the multicolored vessel 1q of the present invention as shown in FIG. 24 produced by blow molding of the Ferrison 10 shown in FIG. 25 has a main resin layer forming the container body 2 ( (Not shown) and at least two monochromatic colored layers having different color tone differences as the color tone different from the main resin layer along a part of the outer periphery of the main resin layer are arranged in parallel in the longitudinal direction. The left and right color tone gradient colored layer 7a, and the color tone different from the above-described main resin layer and the cascaded left and right color tone gradient colored layer 7a, are laminated on a part of the other outer periphery of the main resin layer described above, and the container body 2 ) Up and down continuous color tone gradient colored layer 8 having a thickness difference toward the lower side, and a transparent layer 9a formed on the remaining outer peripheral portion of the main resin layer.

In addition, another structure of the multicolored container 1q of the present invention as shown in FIG. 24 produced by blow molding of the Ferrison 10 shown in FIG. 25 is the main resin layer forming the container body 2. (Not shown) and a cascade in which at least two monochromatic color layers having different color tone differences as different color tones from the main resin layer are arranged in parallel in the longitudinal direction along a part of the outer circumference of the main resin layer described above. It is laminated | stacked on the outer peripheral part of the main resin layer mentioned above as a color tone different from the said formula left-right color tone gradient coloring layer 7a, and the said main resin layer and the cascade type left-right color tone gradient coloring layer 7a, and the container main body 2 The upper and lower continuous color tone gradient colored layer 8 having a thickness difference toward the lower side, and the cascade-type left and right color tone gradient colored layer 7a and the vertical continuous color tone, which are formed on the outer peripheral edge of the main resin layer. Gradient coloring It may also be formed from a longitudinal monotone striped colored layer (not shown) having a color tone different from that of the layer 8.

26A to 26D are front views or perspective views of the multi-color container 1r, 1s, 1t, 1u in which the left and right dichroic borders are formed in a helical manner as a ninth embodiment as a modification of the third embodiment; The polychromatic vessels 1r, 1s, 1t, and 1u are formed of the container body 2 and the neck portion 3 and have a spiral colored layer 9c.

However, although not shown in the figure, the spiral color layer 9c described above has a darker color layer below, a middle color layer for the middle part, a middle color layer for the middle part, and the upper portion and the neck portion 3 are formed in a spiral color layer. It may be more preferable to form a colored layer in terms of beautiful multicolor tone expression.

FIG. 27 is a cross-sectional view of an exemplary extrusion die head 300 in a forming apparatus for performing a ninth embodiment, wherein the structure of the die head 300 has a first and a second fastener (inside the body 301). 302 and 303 are sequentially mounted around the mandrel 350, and the main extruder 110 passes through the first annular flow path 310 formed between the first and second fasteners 302 and 303. The molten main resin is extruded through the first flow path 311, and one auxiliary injection machine 200 is connected to the second annular flow path 320 formed between the body 301 and the second fastener 303. The colored resin melted through the flow path 321 is injected at a precisely controlled variable or constant injection amount.

An annular flow forming tip 360 is detachably coupled to the distal end of the die head 300 by screwing or other fixing means, and a spiral convex portion 361 is attached to the nozzle end of the annular flow forming tip 360. ) And a spiral recess 362 are formed.

The precisely controlled variable injection of the injection amount through the auxiliary injection machine 200 forms a spiral up and down continuous color tone gradient colored layer, and the constant injection or constant extrusion by the auxiliary extruder forms a simple spiral monochromatic colored layer.

In blow molding the multicolored vessels 1r, 1s, 1t, and 1u shown in Figs. 26A to 26D, the first flow passage 311 via the first annular flow passage 310 by the main extruder 110 is opened. The molten main resin passing through forms a main resin layer (not shown) which forms the container body 2 in FIGS. 26A to 26D, and is formed through the second annular flow path 320 by the auxiliary injection machine 200. The molten colored resin passing through the two flow paths 321 is laminated on the main resin layer described above and spirally colored layers such as spiral up and down continuous color gradient color layers or spiral monochromatic colored layers via the annular flow forming tip 360. (9c) is formed.

The annular flow forming tip 360 can be mounted to the tip of the die head 300 by suitable fastening means, such as, for example, by screwing, with a spiral convex 361 and a spiral concave 362 at the inner end thereof. Spirally arranged to form a pretzel-shaped spiral, and then blow-molded to produce the multi-color vessels 1r, 1s, 1t, and 1u shown in FIGS. 26A to 26D. Can be. Alternatively, the second flow path 321 may be formed to be inclined in a spiral shape, or the annular flow forming tip 360 may be simply formed with or without the spiral convex portion 361 and the spiral concave portion 362 at the terminal inner side thereof. By rotating, the polychromatic container 1r, 1s, 1t, 1u shown in FIGS. 26A-26D can be manufactured.

On the other hand, in the case of the multicolored vessels 1r, 1s, 1t, and 1u shown in FIGS. 26A to 26D, since the spiral colored layers 9c are two, the second flow paths 321 are not shown. It is formed by two arc-shaped flow paths which branched off.

28A to 28C are front views of the multicolor container 1v, 1w, 1x formed in a spiral shape in which a plurality of longitudinal stripes are spaced apart from each other as a tenth embodiment as a modification of the sixth embodiment, and the present invention shown in FIG. The multicolor container 1v, 1w, 1x is formed of the container body 2 and the neck portion 3 and has a spirally striped colored layer 9d.

However, although not shown, the spirally striped colored layer 9d described above also has a spiral hue continuous color gradient layer composed of a dark hue colored layer below, a middle hue colored layer, and an upper portion and a neck portion formed of a light hue colored layer. It may be more desirable to form in terms of beautiful multitone expression.

As a result, the polychromatic vessels 1r, 1s, 1t, and 1u as shown in Figs. 26A to 26D and the polychromatic vessels 1v, 1w and 1x as shown in Figs. A cascade-type left and right color tone gradient color layer, a continuous top and bottom color gradient color layer, a longitudinal monotone (stripe) color layer, or a transparent layer which are formed by being stacked in a spiral direction on the main resin layer. You can have it.

As mentioned above, although this invention was demonstrated through the preferable specific example, a various change and correction is possible for those skilled in the art, without deviating from the mind and range of this invention, but also this is also within the scope of the present invention.

1A is a perspective view showing an example of a conventional molding apparatus.

FIG. 1B is a schematic plan view of main parts of the conventional molding apparatus of FIG. 1A. FIG.

FIG. 1C is a cross-sectional view taken along the line A-A of FIG. 1B.

FIG. 2 is a schematic view showing the laminated state of the synthetic resin layer extruded from the extrusion die head of the conventional molding apparatus of FIG.

3A to 3C are explanatory diagrams illustrating a process of molding a parison of a structure in which a synthetic resin layer is laminated by blow molding from a extrusion die head of the conventional molding apparatus of FIG. 1 by blow molding; to be.

FIG. 4 is a partially cutaway perspective view showing a conventional container having up and down continuous color tone gradients formed by the conventional molding apparatus of FIG. 1.

5 is a perspective view showing an example of a molding apparatus that can be applied to the production of a multicolor container according to the present invention.

6 is a schematic plan view of the main portion of the molding apparatus of FIG.

7A to 7D are front views of multicolored containers, each having a continuous right and left hue gradient according to the first embodiment of the present invention.

FIG. 8 is a cross-sectional view of a ferison just before blow molding into a multicolor vessel with the continuous left and right color tone gradients of FIGS. 7A-7D.

FIG. 9 is a longitudinal cross-sectional view of the extrusion die head of a molding apparatus for producing a multicolor container having a continuous left and right color tone gradient as in FIGS. 7A-7D.

10 is a front view of a multicolor container having a cascaded left and right color tone gradient according to a second embodiment of the present invention.

11A and 11B are cross-sectional views of Ferison immediately before blow molding into a multicolor container with the cascaded left and right tonal gradients of FIGS. 10A and 10B, respectively.

12A is a longitudinal sectional view of an extrusion die head of a molding apparatus for producing a multicolor container having a cascaded left and right tonal gradient as in FIGS. 10A and 10B, and FIGS. 12B and 12C are different forms of each of the different forms of FIG. BB cross section.

13A to 13E are front views of the left and right bicolor multicolored vessels each having a vertical continuous color tone gradient according to the third embodiment of the present invention.

14A and 14B are cross-sectional views of Ferison immediately before being blow molded into bilateral multicolored vessels having left and right continuous color tone gradients of FIGS. 13A-13C and 13D and 13E, respectively.

15A is a longitudinal cross-sectional view of an extrusion die head of a molding apparatus for producing a bicolor container of right and left bicolors having the vertical continuous color tone gradients of FIGS. 13A-13C and FIGS. 13D-13E, and FIG. 15B is a 13-13C FIG. CC line cross-sectional view in FIG. 15A in the case of 13c, and FIG. 15C is DD cross-sectional view in FIG. 15A in the case of FIGS. 13D-1E.

16A and 16B are front views, respectively, of a multicolor container having vertical and continuous color gradients and transparent windows according to a fourth embodiment of the present invention.

17A and 17B are cross-sectional views of Ferison immediately before being blow molded into the multicolor container with the up and down successive tonal gradients and transparent windows of FIGS. 16A and 16B, respectively.

18A and 18B are front and perspective views, respectively, of a multi-color container of left and right dichroic colors having vertical and continuous color tone gradients and transparent windows according to a fifth embodiment of the present invention.

19A and 19B are cross-sectional views of Ferison immediately before blow molding into a bi-color multi-tone container having left and right continuous color tone gradients and transparent windows, respectively, of FIGS. 18A and 18B.

20 is a front view of a multi-color container in which a plurality of up and down continuous color tone gradients and a plurality of monotone stripes are alternately arranged according to a sixth embodiment of the present invention.

FIG. 21 is a cross-sectional view of Ferrison immediately before blow molding into a multi-tone container in which a plurality of top and bottom continuous color gradient layers and a plurality of monotone striped color layers of FIG. 20 are alternately arranged.

Fig. 22 is a perspective view of a multicolor container with vertical continuous color gradient and alternating longitudinal transparent windows according to a seventh embodiment of the present invention.

FIG. 23 is a cross-sectional view of Ferison immediately before blow molding into a multi-tone container having an up and down continuous color tone gradient of FIG. 22 and an alternate longitudinal transparent layer.

24 is a perspective view of a multi-color container having a cascaded left and right color tone gradient, a vertical continuous color tone gradient, and a transparent window according to an eighth embodiment of the present invention.

FIG. 25 is a cross-sectional view of Ferison immediately before being blow molded into a multi-color vessel having a cascaded left and right color tone gradient, a continuous top and bottom color gradient, and a transparent window of FIG.

FIG. 26A to FIG. 26D are front views or perspective views of a multicolored container in which a left and right dichroic boundary is formed in a spiral as a ninth embodiment as a modification of the third embodiment.

27 is a sectional view of an exemplary extrusion die head in a forming apparatus for carrying out a ninth embodiment.

28A to 28C are front views of a multicolor container in which a plurality of longitudinal stripes are formed spirally in a spaced form from each other as a tenth embodiment as a modification of the sixth embodiment.

Explanation of symbols on the main parts of the drawings

1a, 1b, 1c, 1d, 1e, 1f, 1g, 1h, 1i, 1j, 1k, 1l, 1m, 1n, 1o, 1p, 1q, 1r, 1s, 1t, 1u, 1v, 1w, 1x Multi-Color Containers

2: container body 3: neck portion

4: dark tint colored layer 5: middle tint colored layer

6: pale color layer 7: continuous left and right color gradient color layer

7a: cascade type left and right color concentration colored layer

8: continuous up and down color gradient color layer

9: monochromatic color layer 9a: transparent layer

9b: monochromatic stripe colored layer 9c: spiral colored layer

9d: spiral striped colored layer

10: ferris

11: main resin part 11a: posterior lobe part

11b: thin leaf part 12: dark color tone part

13: middle tone coloring 14: light tone coloring

15: continuous left and right color tone gradient coloring section

15a: cascaded left and right color tone gradient coloring part

16,16a, 16b: continuous upper and lower hue gradient coloring

17: monochromatic tinted portion 17a, 18a: transparent portion

17b: monochromatic stripe colored portion 18: basic colored resin portion

100: molding apparatus

110: main extruder 111: main extruder hopper

112 cylinder 113 screw

110a: co-extruder 111a: co-extruder hopper

112a: Cylinder 113a: Screw

120: blow cylinder 130: blow mold

200: auxiliary injection machine

202: cylinder 203: screw

210: auxiliary injection machine hopper 220: injection speed control valve

300 die head

301: body 302: first fixture

302a: annular obstruction 303: second fixture

303a: annular protrusion 303b: first stepped portion

303c: second step part 303d: third step part

303e: annular closure portion 304: third fastener

310: first annular flow path 311: first flow path

320: second annular flow path 321: second flow path

321a: left second flow path 321b: middle second flow path

321c: right second flow path 322: partition wall guide

330: third annular euro 331: third euro

350 mandrel 351 head

352: eccentric head 360: annular flow forming tips

361: spiral convex portion 362: spiral concave portion

Claims (20)

delete delete delete delete delete delete delete A transparent main resin layer forming a container body; A basic colored resin layer laminated on a part of the outer circumference of the transparent main resin layer; An up and down continuous color tone gradient colored layer laminated on the outer periphery of the basic colored resin layer and having a thickness difference toward the lower side of the container body; At least one longitudinal transparent layer connected to the transparent main resin layer through the basic colored resin layer and the vertical color gradient gradient colored layer; The same color tone as the color tone different from the above-mentioned continuous color tone gradient color layer or the same color as the basic color resin layer in the remaining region except for the region where the vertically continuous color tone gradient color layer and the at least one longitudinal transparent layer are formed in the outer periphery of the transparent main resin layer. Monochromatic colored layer formed up and down longitudinal direction Multicolor container. A main resin layer forming a container body; It is formed in the form of a plurality of stripes of equal intervals in the longitudinal direction along the outer periphery of the main resin layer, and is formed as a continuous color gradient gradient layer of vertical thickness having a thickness difference toward the bottom of the container body: The main resin layer exposed between the plurality of stripe-shaped up and down continuous color tone gradient colored layers forms a plurality of longitudinal monotone striped colored layers of equal intervals. Multicolor container. A transparent main resin layer forming a container body; A basic colored resin layer laminated in a plurality of stripe shapes at equal intervals in the longitudinal direction along the outer circumference of the transparent main resin layer; Vertical and continuous color tone gradient colored layers laminated on the outer surface of the basic colored resin layer and formed in a plurality of stripe shapes with equal intervals in the longitudinal direction having a thickness difference toward the bottom of the container main body; A plurality of transparent layers are formed between the above-described basic colored resin layers and between the plurality of stripe-shaped up and down continuous color gradient color layers. Multicolor container. A main resin layer forming a container body; Cascade-type left and right color tone gradient color layers in which at least two monochromatic color layers having different color tones as different color tones from the main resin layer are arranged in parallel in the longitudinal direction along a part of the outer circumference of the main resin layer. and; Up and down continuous color tone gradient color layers laminated on a part of the outer periphery of the main resin layer as different color tones from the main resin layer and the cascaded left and right color tone gradient color layers and having a thickness difference toward the lower side of the container body; It is formed of a transparent layer formed on the remaining outer peripheral portion of the main resin layer Multicolor container. A main resin layer forming a container body; Cascade-type left and right color tone gradient color layers in which at least two monochromatic color layers having different color tones as different color tones from the main resin layer are arranged in parallel in the longitudinal direction along a part of the outer circumference of the main resin layer. and; Up and down continuous color tone gradient color layers laminated on a part of the outer periphery of the main resin layer as different color tones from the main resin layer and the cascaded left and right color tone gradient color layers and having a thickness difference toward the lower side of the container body; It is formed on the remaining outer periphery of the main resin layer and is formed of a longitudinal monotone striped color layer having a color tone different from that of the cascaded left and right color tone gradient color layer and the vertical continuous color tone gradient color layer. Multicolor container. delete delete delete delete delete delete The method of claim 11, wherein the cascaded left and right hue gradient colored layer is a similar series of colors having different hue differences, or has a lightness difference as the same color, or a saturation difference as the same color, Or a multicolored container in which at least two stepwise monochromatic colored layers in which they are arbitrarily combined are formed by being arranged in a longitudinal direction in the form of stripes parallel to each other to exhibit a stepwise difference in color tone from side to side. The thickness of the said main resin layer is 500-2000 micrometers, and the thickness of a continuous or cascade type left-right hue gradient colored layer or an up-down continuous hue gradient colored layer is zero. Multicolor container with ~ 1000 μm.

Images