JPH08183031A - Recycle resin material and molded product, method and apparatus for manufacturing them and product factory - Google Patents

Abstract

PURPOSE: To efficiently and repeatedly reuse a resin material after regeneration by dividing resin materials into a plurality of reducing stages corresponding to the coloring agents and fillers contained therein and adding higher-order coloring agents and fillers fitted to the respective reducing stages to the resin materials on the basis of the physical properties thereof. CONSTITUTION: A reduction judging means 3 judging reducing stages on the basis of the mark displays of reducing stages displayed on resin molded products recovered corresponding to the coloring agents and fillers contained therein to classify the molded products at every reducing stages and a grinding means 4 grinding the recovered resin molded products are provided. Subsequently, the values added of a coloring agent and a filler are imparted to the ground resin material corresponding to the reducing stage by a regenerated material forming means 5 to form a regenerated resin material. The reducing stage concerned is displayed on the regenerated resin material to mold a resin molded product by a molded product means 6.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a recycled resin material and a molded product, a manufacturing method, a manufacturing apparatus and a product factory thereof, which can efficiently and repeatedly reuse a resin material which processes resources such as petroleum and ore into industrial products. It is about.

[0002]

2. Description of the Related Art Resin products, which are processed into resources by processing resources such as petroleum and ore, are easy to process, inexpensive, and have excellent durability.
Electronics products centering on office automation equipment, automobiles,
It is widely used as transportation equipment such as vehicles and elevators, unit products such as kitchens and bathrooms, structures such as houses and buildings, civil engineering parts such as road signs, and exterior housing parts such as daily sundries.

In recent years, it has been necessary to consider resource saving and environmental problems in resin products, and it is obligatory by law to indicate the type of resin material in resin products currently produced. Then, various recycling techniques for collecting and recycling these produced resin products have been proposed.
For example, by adding black soft polyvinyl chloride or carbon black obtained from the waste SD wire jacket to gray soft polyvinyl chloride obtained from the cable jacket inside the disposal office, it becomes the same as the steel cored outdoor wire coating material. It has been proposed to manufacture a material having the same color and the same material properties. Further, there has been proposed one in which crushed waste plastic is mixed with crushed paper or wood at a predetermined mixing ratio. The conventional example is described in JP-A-58-8612,
It is disclosed in the publication of Japanese Patent Laid-Open No. 5-147036.

[0004]

As means for considering the recyclability of conventional plastic materials used for industrial products, etc., consideration must be given to the selection of easily recyclable materials in the life cycle of industrial products and the like. The main technology was material recycling after disassembly. In addition, although the general market trend is to adopt resins that are easy to recycle, in any case, there are many restrictions on physical properties, color tone, cost, etc., as long as they are conditioned for one-time recycling. Is. In particular, with regard to the coloring property that becomes a turbid dark color system, methods such as painting, printing, and heat transfer can be considered, but compatibility with resin materials for reducing properties and secondary processing such as painting, printing, and heat transfer. Equipment for stripping processing is not generalized.
Similarly, the mixing of filler materials such as fibers and fine powder and auxiliary materials including organic and inorganic compounds is also systematized and further regeneration is not considered.

The present invention has been made to solve the above-mentioned problems, and its objects are performance, productivity, marketability,
Provided are a recycled resin manufacturing method, a recycled resin material, a recycled resin molded product, a recycled resin manufacturing apparatus, and a recycled resin product factory, which can efficiently and repeatedly reuse the recycled resin material in consideration of economical efficiency and the like.

[0006]

The present invention provides a resin material,
Depending on the colorants and fillers contained, it is divided into multiple reduction stages, and higher levels of colorants and fillers suitable for each reduction stage are added to these resin materials based on their physical properties. It is a method for producing a recycled resin, which produces a recycled resin corresponding to.

Further, the present invention is a recycled resin material or molded product provided with an identification means that represents a new reduction stage in order to add value to the recycled resin material / molded product.
Further, the present invention, a coloring agent contained, a resin molded article provided with an identification means for displaying the reduction step classified corresponding to the filler, the determination means of the reduction step for classification based on the identification means, A crushing means for crushing the resin molded product classified by the judging means, and a regenerated resin by giving the added value of the colorant / filler to the resin material crushed by the crushing means in correspondence with the reduction step. And a molded resin means for producing a synthetic material, and a molded product means for manufacturing a recycled resin molded product from the recycled resin material, and providing the recycled resin molded product with an identification means representing a new reduction stage of the recycled resin material. It is a recycling resin manufacturing equipment equipped.

Furthermore, the present invention provides a resin selection means for selecting a resin molded product from the recovered waste, and a step means displayed on the recovered resin molded product corresponding to the contained colorant and filler. The reduction step is determined based on the reduction step, the reduction step determination means for sorting each reduction step, the crushing means for crushing the recovered resin molded product, and the reduction step for the crushed resin material And adding a coloring agent / filler to produce a recycled resin material, a molded product means for molding the resin molded product by displaying a corresponding reduction step of the recycled resin material, and the recycled resin molding It is a recycled resin product factory equipped with a product assembly means for assembling products and various parts to assemble the products and send the products to the market.

[0009]

According to the present invention, the resin material is subjected to a plurality of reduction steps corresponding to the colorants and fillers to be mixed therein, for example, the first step mainly using the initial resin material and the higher order coloring. By dividing into the second stage where the agent is mainly mixed, the third stage where the filling material is mainly mixed, and the fourth stage where the auxiliary materials including organic and inorganic compounds are mainly mixed, The resin material having the above physical properties can be classified according to the physical property stages from the initial stage to the disposal stage. The classified resin materials are colored in higher order suitable for each reduction step based on physical properties, for example, light-colored resin materials are colored in dark colors, or additives to be mixed are classified into a plurality of colors. By determining the filling material and the sub-material, the number of times of regeneration can be increased without impairing the physical properties.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments according to the present invention will be described below with reference to FIGS.
This will be described in detail with reference to FIG. However, the present invention is not limited to these examples. In the following embodiments, members of the same type, parts, arrows and the like are designated by the same reference numerals, and duplicate explanations are omitted.

[Embodiment 1] FIGS. 1 to 7 show a recycling plant showing an embodiment of the present invention. FIG. 1 is a conceptual diagram of a process of the recycling plant, FIG. 2 is an explanatory diagram of a reduction stage, and FIG. Third
Example of resin molding by inclusion of additives, individual binders and the like in the step 4 and step 4, FIG. 4 is an explanatory view of the identifying means, FIG. 5 is a second step determination flow chart, FIG. Figure, Figure 7
[Fig. 3] is a third-stage physical property determination flowchart.

First, referring to FIG. 1, an outline of the recycling plant of this embodiment will be described. In the figure, reference numeral 1 indicates a recycling plant as a whole, which recycles various resin molded products discarded and collected from the market to manufacture various resin molded products using recycled resin materials. It reuses various products and supplies them to the market again. The recycling factory 1 has a material selection means 2 for selecting resin molded products from the collected waste, and a mark display of the reduction stage displayed on the recovered resin molded products corresponding to the contained coloring agent and filler. The reduction stage is determined based on the above, and the reduction determination unit 3 that sorts each reduction stage, the crushing unit 4 that crushes the recovered resin molded product, and the crushed resin material correspond to the reduction stage. And a recycled material forming means 5 for generating a recycled resin material by adding added value to the colorant / filler,
Molded product means 6 for molding the resin molded product by displaying the applicable reduction stage of the recycled resin material, and product assembly means 7 for assembling the recycled resin molded product and various parts to assemble the product and send the product to the market. Composed of and.

Here, it is preferable that the identification means for selection includes at least one of a reduction stage identification means, an identification means indicating the number of recycles in the reduction step, and a resin material identification means. The identification means is performed by displaying with a number stamp or a bar code. As a result, it is possible to facilitate the sorting of the reduction stage at the time of recovery. Furthermore, by displaying an identification means that represents a new reduction stage determined by adding added value to the recycled resin material / molded product, sorting at the time of further recycling can be facilitated. Further, the identification means may be provided near the member symbol of the recycled resin molded product. The resin member symbol is defined by law. For example, polyethylene is PE and polypropylene is P.
P, acrylonitrile butadiene styrene is AB
S and styrene are PS.

The recycling plant 1 shown in FIG. 1 mainly represents the process from waste resin material to recycled resin product, and the material such as metal material and glass material constituting the product, electrical equipment, circuit element. Each step such as is omitted. The recycling plant 1 divides the collected waste resin material into a plurality of reduction stages according to the contained coloring agent and filler.
Considering the further recycling of the recycled resin material, the resin material after recycling is added by adding higher-order colorants and fillers suitable for each stage based on the physical properties of the classified waste resin material. It is designed to be reused efficiently and repeatedly.

Therefore, before describing the details of the recycling plant 1, the reduction step, which is a feature of the recycling plant 1, will be described with reference to FIG. In FIG. 2, the horizontal axis shows each step of the reduction step, and the vertical axis shows the elements of each step. Referring to FIG. 2, in the recycling plant 1, the recovered resin product is mainly composed of an initial resin material, a first step, a high-level coloring agent, and a filling material. It is divided into four reduction stages, which are the third stage mixed in with and the fourth stage mixed with by-products including organic and inorganic compounds mainly, and the following colored substances and contaminants are added to each reduction stage. It It should be noted that, if necessary, it can be divided into any two or more reduction stages out of the above four reduction stages.

In the first stage, which is the first stage of using the plastic, the base resin is used as an initial material (virgin material), and in this stage, a pigment or dye as a colorant and a filling material as an auxiliary material are basically used. Does not mix. Therefore, the color tone is based on the natural color in order to express the virgin sensation as a feature and further facilitate the reducing property. For example, PP resin is translucent milky white, GPP
S resin is transparent, HIPS resin is opaque milky white, AB
The S resin is opaque milky yellow or milky white, and the virgin material that uses these natural colors as a unified expression condition is used as the component material that is formed in the first stage. However, the grades differ by product component in most cases, and UV absorption and antistatic properties are provided by supplementing the minimum additive materials and stabilizers such as calcium carbonate, talc, barium sulfate, mica, etc. as physical properties. , To secure ozone deterioration prevention. As a compounding means for these, the cost can be reduced by using a masterbatch method in which a polymer and an auxiliary material (additive, compounding agent reinforcing material, etc.) can be freely mixed during molding. The resin material collected in this first stage is suitable for product materials with a natural product image that impresses a clean, fresh, and innocent sensation as a natural image. Interior items, cookware, washing machine exterior items, medical equipment, kitchen / bathroom items, etc. are desirable.

In the second step, a crushed material of the recycled resin product belonging to the first step is used as a base resin, and a coloring agent such as a pigment or a dye is mainly added to this base resin. When this colorant is added, a higher order (higher dimension) colorant having a color tone that is superior to the color tone of the raw material when the colorant is added is added. Higher colorants are pigments and dyes having a color tone superior to that of the raw materials when added, and specific examples thereof include titanium oxide, carbon, iron oxide, ultramarine blue, pearl, aluminum powder, monozoa, etc. be able to. For example, a virgin material using a transparent and milky white natural color is colored in a light color, and a recycled resin having a light color tone is colored in a dark color. Examples of the light-colored coloring agent include titanium oxide, pearl, aluminum powder and phthalocyanene, and examples of the dark-colored coloring agent include carbon, iron oxide, ultramarine blue and monozoa.

At this stage, solid color (single color) is used as a basic tone in consideration of further recycling. By adding a coloring agent in this way, it is possible to secure a color tone with high lightness and saturation, maintain the appearance quality as a conventional high-quality plastic part material, facilitate further recycling, and increase the number of times of recycling. You can If the master batch is used in the process after recycling and crushing, the coloring will be even cheaper than the manufacturer colored.
As for physical properties, some deterioration of physical properties in the initial material is supplemented with some sub-materials, but the base polymer is a recycled plastic used in the first stage, so there is a large positive factor in terms of color tone cost. . This second-stage resin material is a product material with the above-mentioned natural product image,
It is conventionally positioned as a future application as a step product group of product materials with a product image of a sense of harmony.

In the third step, the crushed material of the recycled resin product, which is difficult to recycle in the second step in terms of physical properties, is used as the base resin, and the filler material is mainly mixed into this base resin. The solid color (single color) recycled material used in the second step is a composite resin containing a filler (filler) mixed for the purpose of improving the appearance design effect at the same time as reducing the physical properties and color tone and supplementing at this step. , Multicolor mixed resin (marble tone with two or more different colors). In consideration of the next generation recycling, it is desirable that the filler is a material which is as fine as possible and has compatibility with recycled plastic. Generally, cellulosic fibers, alumina fine powder, glass fine powder, mica, etc. are considered. Subsequent reductions at this stage will be regenerated many times unless the gross quality of the base resin deteriorates. Therefore, at this stage, in order to facilitate further recycling, it is divided into a plurality of types according to the type of filling material, for example, specific gravity, and the filling material having a light specific gravity is mixed first, and the filling material having a heavy specific gravity is further mixed in the further recycling. mixing. In addition to this, the same effect can be obtained by dividing the filling material according to its size.

Further, in the third step, it is possible to manufacture a resin molded product which can obtain various surface treatment sensations by selecting a filler to be mixed. FIG. 3A shows an example of the resin molded product at the third stage. For example, 2 fillers of different colors of the same or different materials
It is possible to produce a resin molded product having a surface treatment feeling of marble / marble expression by mixing the recycled resin with a color / multicolor mixed molding method. Alternatively, a resin molded product having a feeling of surface treatment of wood expression can be manufactured by mixing an additive of ultrafine wood powder at a content rate of 40 to 50% by a method of mixing and molding a filler. The third-stage resin material using the blended composite resin is desirably applied to a product material having a product image with a sense of harmony, for example, indoor fashion products such as audio equipment, beauty equipment, air conditioners, and OA equipment.

In the fourth step, the crushed material of the recycled resin product, which is difficult to recycle in the third step in terms of physical properties, is used as the base resin, and the auxiliary material is mainly mixed into this base resin. For resin materials that have undergone several cycle experiences, quality deterioration cannot be denied, and at this stage, the final reduction technology will be a part structure that also considers lowering the quality of the material, and the next reduction will be incinerated and landfilled. Therefore, as secondary materials, industrial wastes such as waste plastics, waste tires, organic compounds such as rocks and wood chips, and inorganic compounds are mixed, so that the finish on appearance and quality effects are formed as rough expressions. Resin molding in which these sub-materials are mixed can be manufactured by injection molding or extrusion molding. FIG. 3B shows an example of a molding method depending on the kind of the additive which is the auxiliary material. For example, when a waste tire is used as an additive, it can be manufactured by a particle / powder processing molding method. Examples of these products in the fourth stage include products with a heavy use feeling (heavy) such as heavyness and robustness, such as building equipment parts, furniture equipment parts such as racks and tables, and outdoor equipment products such as electric tools. Is recommended.

As described above, in the present recycling plant 1, the waste resin material is recovered and regenerated on the basis of the reduction step, so that the base resin suitable for repeated use can be easily selected, and only once. A product system that takes into consideration high-quality resin reducing properties is constructed, which is not limited to recycling, and that multiple times of repeated reuse leads to an appearance design of a product (product) suitable for each usage stage. The above explanation is
This is an example of performing all of the reduction stages of the first to fourth stages, but the division of the reduction stages of the first stage and the fourth stage,
It may be performed by dividing the reduction stage into the second stage and the third stage.

[Embodiment 2] In this embodiment, the recycling plant 1 will be described in detail with reference to FIGS. 1 and 4 to 7. First, the resin molded product of the product provided from the recycling factory 1 to the market is provided with an identification means (mark display) 100 indicating which stage of the reduction step the resin molded product belongs to, which is described in FIG. To be done. As shown in FIG. 4, this identifying means 100 is composed of a resin material identifying means 101, a reduction stage identifying means 102, a recycling number identifying means 103, a color tone identifying means 104, a filling material identifying means 105, and an auxiliary material identifying means 106. To be done. The resin material identification means 101
This indicates the type of resin material. P, P
Marked with abbreviations such as S and ABS. The redemption stage identification means 102 indicates the stage of the redemption stage. For example, the first stage is marked with 1 and the second stage is marked with 2. The recycle number identifying means 103 indicates the number of recycles at each reduction step, and serves as a guideline for the physical properties of the resin material, and the number of recycles is marked with 1 or 2. The number of times of recycling in the first stage should be originally displayed as 0, but here, in order to express it as the number of times in each reducing stage, the number of times of recycling of the initial resin material is marked with 1 representing the first time. To do. The color tone identifying means 104 indicates the color tone of the material. For example, the transparent color is 1, the natural color is 2, the light color is 3, and the dark color is 4. In the mark display of the color tone identification means 104, the higher the mark display, the higher the color tone. The filler identifying means 105 and the auxiliary material identifying means 106 indicate the types of fillers or auxiliary materials to be mixed. For each means, 0 means no filler or auxiliary material mixed, or 0 If the auxiliary material has a light specific gravity, it is marked with 1, and if it has a heavy specific gravity, it is marked with 2.

Now, the identification means 1 configured as described above
00, for example, if the material is P. In P, when the reduction step is the second step, the number of times of recycling in the second step is the first time, the color tone is a light-colored color, and the filler and the sub-material are not mixed, "-" is given between the respective identification means. Put "P.P-2-1-3
The six signs of "-0-0" can represent the reduction stage and physical properties of the resin product. In this embodiment, the mark display of the identification means 100 is displayed in numerical form and the mark display in which the mark display is replaced with a bar code is additionally printed on a sticker, and the sticker is attached to the back surface of the resin product. Or, the bar code itself is engraved on the back surface of the resin product. In the present embodiment, the mark display is represented by a numerical value and a bar code, but it may be displayed by a color, various codes, alpha-bed, or the like. Further, the mark display may be displayed in characters, or the character display and the barcode may be written together.

In FIG. 1, the products disposed of in the market are transported to the recycling plant 1 through the manufacturer's own sales route or by entrusting a recovery company. The collected products are first conveyed to the material selection means 2. The material sorting means 2 is composed of a material sorting means 8 for each part and a sorting means 9 for each material. Material selection means by part 8
Then, disassemble the product and divide into parts. The material-by-material sorting means 9 sorts the parts decomposed by the component-by-material sorting means 8 by material, extracts a resin molded product, and conveys the resin molded product to the reduction determination means 3 for other metal materials, glass, or the like. The other materials are sorted according to the material and transported to the respective recycling processing steps. Here, the description of the recycling process of the plastic material is omitted.

The reduction determination means 3 reads the identification means 100 attached to the resin molded product extracted by the material selection means 2 and sorts into the reduction stages described in FIG. Identification means 1
Since 00 is displayed as a bar code as described above, sorting can be performed easily and mechanically. Moreover, since the identifying means 100 can know the physical properties of the resin molded product at the time of manufacturing, it is possible to further subdivide the resin material belonging to each reduction step into physical properties, so that the resin material is uniform. As a result, it is possible to improve the accuracy of mixing of the colorant, the filler, and the auxiliary material thereafter, and it is possible to further increase the number of times of recycling.

In the recycling factory 1, for example, the reduction determination means 3 identifies a belt conveyor for conveying a resin molded product (not shown), a bar code reader reading device installed on the belt conveyor, and data read by the bar code reading device. And a control unit that outputs an identification signal,
And a sorting device for sorting the resin molded products on the belt conveyor according to the identification signal of the control unit. If the barcode cannot be read, a human will make up for it by the numerical value or the character code written together with the barcode. The control unit of the reduction determination means 3 configured in this way determines according to the determination flow shown in FIG. 5, and sorts the resin molded products.

In FIG. 5, the control section reads the resin material identifying means 101 to identify the material name.
0, step 111 for reading the reduction stage identification means 102 to identify the reduction stage, and recycling number identification means 103
Reading 112 to identify the number of recyclings
And identify in stages. Further, after step 112, in the first step and the second step, the color tone identification means 104 is read to perform step 113 for identifying the color tone of the natural color and the transparent color, or the light color type and the dark color type. In the third stage and the fourth stage, the filler identifying means 105 and the auxiliary material identifying means 10
6 is read, and steps 114 and 115 are performed to distinguish between the lighter and the heavier specific gravity of the industrial waste that is the filler or the auxiliary material. As described above, according to the reduction determination means 3, the resin molded products can be classified and sorted in detail according to physical properties. The steps 112 to 115 may be omitted depending on the type and quantity of the resin molded product to be collected.

Returning to FIG. 1, the resin molded products subdivided by the reduction determination means 3 are conveyed to the crushing means 4 for crushing the resin molded products for each crushed group. The crushing means 4 is composed of a crushing means 10 for crushing the resin molded product, a cleaning means 11 for cleaning the crushed material, and a drying means 12 for drying the crushed material. The resin material crushed by the pulverizing means 4 is conveyed to the regenerated resin forming means 5 which produces a regenerated resin material.

The recycled resin forming means 5 comprises a mixing means 13 for replenishing colorants and additives, and a melting means 14 for kneading and pelletizing. In this recycling plant 1, the initial resin material is also used as a raw material for resin molded products,
The initial resin material is handled as a crushed resin material belonging to the reduction step of the first step by the recycled resin conversion means 5. The compounding unit 13 collects the crushed resin materials in appropriate amounts, extracts a sample from the combined resin materials, and checks the physical property values to check the physical properties, and the checking unit 1 described above.
And a value-adding means 16 for determining and mixing the colorant / filler to be mixed based on the determination result of No. 5. The melting means 14 kneads and melts the crushed resin material to which the added value has been added, and extrudes it into pellets.
The determination flow of the physical property value of the physical property value checking means 15 will be described with reference to FIGS. 6 and 7.

FIG. 6 shows a flow of checking physical properties in the second stage. In the figure, in the physical property check, a physical property value is determined for each group of crushed objects classified in step 113 for identifying the color tone of the determination result of the reduction stage shown in FIG. For example, for a crushed product of a dark color, a plate-shaped test piece is prepared, and the moldability 121 such as shrinkage at the time of molding and the physical properties such as specific gravity, transparency, and gloss 12
2, mechanical properties such as hardness, tensile strength, impact resistance 123,
Thermal properties such as heat distortion temperature 124, electrical properties such as inductivity and insulation 125, chemical properties such as weather resistance, chemical resistance 12
An appropriate value (range) is set for each of the six items based on the value of the initial resin material, and the inspection test pieces are set to the above 121 to 126.
It is determined whether or not the physical property item is within the range of the appropriate value. For example, if the above-mentioned physical property items are all within the range of appropriate values for the crushed product of dark color (YES), the recycled resin material of the dark color of the second stage or the third stage It is determined to be the raw material of. (Step 127) On the other hand, when there is an item (NO) in which each physical property item does not fall within the proper value range in the crushed material of dark color, it is determined to be the raw material of the third stage. (Step 128) Similarly, in the case of the crushed product of a light-colored color, if all the physical property items fall within the range of appropriate values (YES), the recycled resin material of a dark-colored color in the second stage is selected. judge. (Step 129) On the other hand, if there is an item (NO) in which each physical property item does not fall within the proper value range in the crushed product of a light color system, the recycled resin material of the second stage dark color system, or , It is determined that the raw material of the third stage. (Step 130)

FIG. 7 shows a flow of checking physical properties in the third stage. In the figure, in the physical property check at this stage, the physical property value is determined for each group of the crushed materials classified by step 115 for identifying the specific gravity of the filler as the determination result of the reduction stage shown in FIG. For example,
In the crushed material filled with the high specific gravity filler, first, the sample is analyzed to determine the type of the filler, and it is discriminated whether the filler is a single filler or a composite filler. (Step 131) As this determination method, for example, the crushed material is pulverized and centrifuged to determine. Next, a plate-shaped test piece is prepared from the sample, and the formability 121, physical properties 122, and mechanical properties 12
3, thermal properties 124, electrical properties 125, chemical properties 1
An appropriate value (range) is set for each of the Nos. 26 based on the value of the initial material, and it is determined whether or not the inspection test piece falls within the appropriate value range for the physical property items 121 to 126. For example, in the crushed material to which the specific gravity filler is added,
If all the physical property items fall within the range of appropriate values (YES), it is determined that the raw material is reused in the third stage. (Step 132) On the other hand, if there is an item (NO) where each of the physical property items does not fall within the range of appropriate values, it is determined to be a raw material of the fourth stage. (Step 133)

Returning to FIG. 1, in the added value adding means 16, the return judging means 3 and the physical property value checking means 15 are provided.
The physical properties of the raw materials are specified based on the judgment result of 1., and a low-order colorant or filler most suitable for the specified physical properties is mixed into each raw material. For example, in FIG.
For those specified from the stage to the second stage, the colorant having a light color of the colorant is added. If it is determined that the light-colored color can be reused from the second stage to the second-stage, a colorant of a dark-colored color higher than the light-colored color is added. Also, regarding the filler and the auxiliary material, in the first stage of each step, the filler and the auxiliary material with a light specific gravity are mixed,
For those with light specific gravity filler and auxiliary materials mixed in,
Filler and auxiliary material with higher specific gravity than light specific gravity are mixed. Further, regarding the third-stage filling material, the filling material to be mixed is determined in consideration of the type 131 of the filling material described in FIG. 7. Regarding the initial resin material, the minimum amount of additives and stabilizers are added as a physical property measure.

The melting means 14 melts and homogenizes the crushed material to which the added value is added, and extrudes it to form pellets. In the present embodiment, the added-value adding means 16 and the melting means 14 are separated from each other, but the recycled resin forming means 5 is used. It may be performed in one step.

The pellets produced by the recycled resin conversion means 5 are conveyed to the molding means 6. The molding unit 6 is composed of a molding processing unit 17 for molding a resin molded product using the pellets as a raw material, and a mark display unit 18 for attaching an identification unit (mark display) 100 to the resin molded product. Forming processing means 17
In accordance with the reduction stage, for example, a molding method as shown in FIG. 3B is selected. As described with reference to FIG. 4, the mark displaying means 18 sticks a seal having both a numerical value and a barcode on the back surface of the resin product. Although the molding processing means 17 and the mark display means 18 are separated in this embodiment, for example, the numerical value or the bar code is directly dug into the molding die, or the part with the numerical value or the bar code is attached. One step may be performed by using a replaceable mold.

In the product assembly means 7, the identification means 100 is used.
A product is assembled by assembling a resin molded product marked with, a member formed of other material, and various electric components. The product is sold to the market through the sales channel of the manufacturer or other sales companies. In this way, the product to which the identifying means 100 is attached is made of a resin material in consideration of performance, productivity, marketability, economical efficiency, etc. by discarding / collecting the product and collecting it again at the recycling plant 1. It is possible to achieve a recycling cycle that enables efficient repeated reuse.

As described above, according to the present recycling plant 1, the resin material, which has the same physical properties as the coloring material and the filler to be added, is provided from the initial stage to the disposal stage. It can be easily divided into multiple reduction stages that are finely divided for each stage of physical properties, and the most suitable colorant, filler, etc. for each reduction stage can be easily specified for each stage, thus impairing physical properties. Since the number of times of recycling can be increased without any need, efficient and effective utilization of recycled resin material can be achieved.

In the reducing step shown in FIG. 2, for example, the virgin material molded product with the natural color in the first step can be obtained in the physical properties suitable for the product in the next reducing step depending on the years of use and the frequency of use. If not, it can be carried out by combining the reducing means of the fourth stage all at once. Basically, there may be a combination in which the virgin material is used as a basic start from any stage, and similarly, it is possible to start from the second stage or the third stage.

[Embodiment 3] In FIG. 8, each constituent means of the recycling plant 1 described in FIG. 1 is divided into two plants in this embodiment. In this embodiment, a recycling plant 200 including a material selecting means 2, a reduction determining means 3, a pulverizing means 4, a recycled resin forming means 5 and a molded article means 6.
And a product factory 201 equipped with the product assembling means 7.

[Embodiment 4] In FIG. 9, in this embodiment, each component of the recycling factory 1 described in FIG. 1 is divided into three factories. In this embodiment, a recycling factory 202 including a material selecting unit 2, a reduction determining unit 3, a pulverizing unit 4, and a recycled resin forming unit 5, and a molded product unit 6.
And a product factory 201 including the product assembling means 7. Here, the recycled resin pellets shipped from the recycling factory 202 are put in a case or bag in appropriate amounts, and the identifying means 100 is put in the case or the like.
Be attached. Further, the recycling factory 202 is provided with a reading device for reading the identification means 100. Therefore, even if the pellets are delivered to the recycling factory 202, the work process can be smoothly advanced.

[Embodiment 5] Referring to FIG. 10, in this embodiment, each constituent means of the recycling plant 1 described in FIG.
It is divided into two factories. In this embodiment, a recycling processing factory 203 including a material selecting means 2, a reduction determining means 3 and a pulverizing means 4, a recycling factory 204 including a recycled resin converting means 5, and a processing factory including a molded product means 6. 20
3 and a product factory 201 having a product assembling means 7. In this embodiment, the movement of the members between the recycling processing factory 203 and the recycling factory 204, and between the recycling factory 204 and the processing factory 203 is carried out by placing them in a case or bag provided with the identification means 100.
4 and the processing factory 203 are provided with a reading device for reading.

The embodiment shown in FIGS. 8 to 10 is an example of a division example, and the processing factory 203 and the assembly factory 20 are also included.
One may be one factory. Further, in the above examples, the reuse of the resin material has been described in detail, but for example,
Other materials such as metal materials and glass other than the resin material extracted by the material-based sorting means 9 are also classified into a plurality of reduction stages corresponding to the colorant, the filler, etc. added to the material, Higher order colorants and fillers suitable for each reduction step may be added based on the physical properties.

[0043]

As described above, according to the present invention, the resin material having the same physical properties as the colorant and the filler containing the resin material can reach from the initial stage to the disposal stage. Since it can be easily divided into multiple reduction stages that are finely divided for each stage of physical properties, and the most suitable colorant, filler, etc. for each reduction stage can be easily specified for each stage,
Since the number of times of regeneration can be increased without deteriorating the physical properties, efficient and effective utilization of the recycled resin material can be achieved.
In addition, it can greatly contribute to the effective use of product resources and, in the end, the promotion of waste reduction.

[Brief description of drawings]

FIG. 1 is a process conceptual diagram of a recycling factory according to a first embodiment.

FIG. 2 is an explanatory diagram of a reduction stage.

FIG. 3 is a diagram showing an example of resin molding by the inclusion of additives, individual binders and the like in the third and fourth stages.

FIG. 4 is an explanatory view of identification means.

FIG. 5 is a second-stage determination flow chart.

FIG. 6 is a second-stage physical property determination flow chart.

FIG. 7 is a flowchart of physical property determination in the third stage.

FIG. 8 is a process conceptual diagram of a recycling plant of Example 3.

FIG. 9 is a process conceptual diagram of a recycling plant of Example 4.

FIG. 10 is a process conceptual diagram of a recycling plant of Example 5.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Recycling factory, 2 ... Material selection means, 3 ... Reduction determination means, 4 ... Grinding means, 5 ... Recycled material means, 6 ... Molded article means, 7 ... Product assembly means, 15 ... Checking means, 16
... granting means, 18 ... mark displaying means, 100 ... identifying means

Claims (14)

[Claims] 1. A resin material is divided into a plurality of reduction stages corresponding to the colorants and fillers contained therein, and higher order colorants suitable for each reduction stage based on the physical properties of these resin materials. A method for producing a recycled resin, comprising adding a filler to produce a recycled resin corresponding to each stage. 2. A first step in which a resin material is mainly used as an initial resin material corresponding to a colorant and a filler to be added, and a second step in which a higher-order colorant is mainly mixed. , A third step of mixing the filler material into the main body, and a fourth step of mixing the auxiliary material including the organic and inorganic compounds into the main body, or at least two or more of the above steps,
The method for producing a recycled resin according to claim 1, wherein a higher-grade coloring agent and a filler suitable for each reduction step are added based on the physical properties to produce a recycled resin corresponding to each step. 3. The second step of mixing a high-order colorant into the main body is divided into a step of performing light-colored coloring and a step of performing dark-colored coloring. Or the method for producing recycled resin according to 2. 4. The third step of incorporating the filler material into the main body is
Recycled resin manufacturing method of claims 1 to 3, wherein the being divided into a plurality depending on the type of filler material. 5. A recycled resin material, characterized in that the recycled resin material is provided with identification means for indicating a new reduction step. 6. A recycled resin molded product, characterized in that the recycled resin molded product is provided with identification means for indicating a new reduction stage. 7. A means for identifying a reduction stage is provided in the vicinity of a member symbol of a recycled resin molded product,
The recycled resin molded product according to claim 6. 8. The reduction step is classified according to the colorants and additives contained therein, and mainly comprises a first step in which an initial resin material is mainly used and a higher order colorant. 7. The second step of mixing, the third step of mixing the filler material into the main body, and the fourth step of mixing the auxiliary material including the organic and inorganic compounds into the main body.
Or a recycled resin molded article according to 7. 9. The recycle device according to claim 6, wherein the identifying unit is at least one of a reducing stage identifying unit, an identifying unit indicating the number of times of recycling in the reducing stage, and a resin material identifying unit. Resin molded product. 10. A means for determining a reducing step for classifying a resin molded article based on the identifying means, the resin molded article having an identifying means for displaying a reducing step classified according to a colorant and an additive contained therein, generating a pulverized means for crushing the segmented resin molded article by the determining means, the recycled resin material a resin material which has been crushed by the crushing means performing added pressure of in response to the reduction step colorant filler And a molded product means for producing a recycled resin molded product from the recycled resin material, and providing the recycled resin molded product with an identification means representing a new reduction stage of the recycled resin material. Manufacturing equipment. 11. The identifying means includes a first stage, which is set corresponding to a colorant to be added and an additive material, and which mainly uses an initial resin material, and a first step which mixes a higher-order colorant into the main body. Identification showing the number of recycles in the reduction stage, which comprises two stages, a third stage in which the filling material is mainly mixed, and a fourth stage in which auxiliary materials including organic and inorganic compounds are mainly mixed 11. The recycled resin manufacturing apparatus according to claim 10, further comprising at least one of a means and a resin material identifying means. 12. The recycled resin conversion means comprises means for checking the physical property values of the resin material crushed by the crushing means, and compounding means for adding a colorant / filler corresponding to the reduction step of the resin material. The recycled resin manufacturing apparatus according to claim 11, further comprising: 13. Based on a material selecting means for selecting a resin molded product from the recovered waste, and a step means displayed on the recovered resin molded product corresponding to a coloring agent and an additive material to be added. Judgment of the reduction step, determination means of the reduction step of sorting for each reduction step, crushing means for crushing the recovered resin molded product, and the crushed resin material,
A recycled resin forming means for generating a recycled resin material by adding a colorant / filler corresponding to the reducing step, and a molded article means for molding the resin molded article by displaying the corresponding reducing step of the recycled resin material, A recycled resin product factory, comprising: a product assembly means for assembling the recycled resin molded product and various parts to assemble the product and send the product to the market. 14. A recycling resin product manufacturing system is divided into a plurality of processing factory plants, and identification means representing a reduction step corresponding to a resin material or a resin molded product supplied between the processing factory plants is displayed. 14. The recycled resin product factory according to claim 13.