JPH0513734U - Synthetic resin plate - Google Patents

Abstract

(57) [Summary] [Purpose] Easily identify differences in the part numbers of synthetic resin plates and scrap materials, and sort and collect scraps and scrap materials of the same part number for easy recycling. [Structure] Over the entire area of the plate surface of the synthetic resin plate body 1,
Indications 2 such as symbols and patterns corresponding to the product number of the synthetic resin plate body 1 are scattered. Even if a scrap material or a scrap material comes out, there is a display 2 corresponding to the product number on the surface of the scrap material or the scrap material. Therefore, it is possible to judge the difference between the product numbers by distinguishing the display.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a synthetic resin plate, more specifically, a synthetic resin plate capable of easily identifying the product type, product number, and the like.

[0002]

[Prior Art]

 Recently, the treatment of the remaining scraps that have been used for the necessary parts of synthetic resin plates and the waste materials of used synthetic resin plates has become a major social issue. For example, incineration of scraps and waste materials made of synthetic resin has the disadvantages that the service life of the incinerator is shortened due to the high heat during combustion, and that the toxic gas generated by combustion must be detoxified. In addition, since the above scrap materials and waste materials are difficult to decompose, even if they are buried underground, they are not a fundamental solution.

On the other hand, since the synthetic resin plate is a recyclable material, it is recommended to collect the scraps and waste materials and recycle them. Further, promoting this recycling also has an advantage that it leads to a reduction in the amount of scrap materials and waste materials that are subjected to the above-mentioned incineration and the like.

By the way, taking a hard vinyl chloride resin plate (hereinafter referred to as a hard vinyl chloride plate), which is one of the most widely used synthetic resin plates, as an example, Different raw materials and compositions, different mechanical strengths such as impact strength, and various properties such as heat distortion temperature, and various types and product numbers of currently known rigid PVC plates are available. As for hard PVC plates, the kneadability and moldability of each composition differ depending on the product number.Therefore, when attempting to plasticize a mixture of hard PVC plates with different product numbers and recycle them, the plasticization temperature will not be sufficient. The plasticized material is scattered and the strength is extremely reduced. Therefore, it is not preferable to handle a mixture of different product numbers for proper recycling, and it is a good idea to collect and re-plasticize the products with the same product number and use them for recycling. One of the effective countermeasures is to be able to accurately distinguish whether the scraps and scraps have the same product number.

Conventionally, it has been said that hard PVC plates of different product numbers have different colors for a long time, but in recent years, many hard PVC plates of the same color have appeared on different product numbers. It is difficult to judge the difference in product number. In addition, determining whether different product numbers are the same based on whether they are transparent or opaque is problematic to use because there is a high possibility that different product numbers will be mixed.

Further, conventionally, it is possible to mask the surface of a hard vinyl chloride board and to specify the product number by displaying the product number, marking or sticking a label on the masking. There is a problem that if the masking is peeled off, the product number of the hard vinyl chloride plate cannot be specified, and with small pieces such as scraps, the product number cannot be displayed because it cannot be seen.

[0007]

[Problems to be solved by the device]

 The present invention has been made in view of the above circumstances, and it is possible to easily discriminate between different types of waste materials and waste materials and differences in product numbers, and in particular, even if there are small pieces of waste materials or waste materials It is an object of the present invention to provide a synthetic resin plate that is devised so that it is possible to easily distinguish the difference in product number and product number.

[0008]

[Means for Solving the Problems]

 The synthetic resin plate of the invention of claim 1 is such that the product number of the synthetic resin plate body, a symbol corresponding to the product number, a pattern, or the like is provided over the entire area of the plate surface of the synthetic resin plate body. ..

The synthetic resin plate of the invention of claim 2 has a different color from that of the synthetic resin plate body over the entire plate surface of the synthetic resin plate body or the entire resin layer, and It is made by laminating synthetic resin thin layers having a corresponding color and having substantially the same composition as the synthetic resin body.

[0010]

[Action]

 According to the invention of claim 1, even if the end material or the waste material of the synthetic resin plate is small, there is an indication such as a symbol or a pattern on the surface of the small end material or the waste material. Since the labeling corresponds to the type and product number of the synthetic resin body, the scraps and scraps with the same label are the same sort and product number, and the scraps and scraps with different labels are different sorts. Or the product number.

According to the invention of claim 2, even if the end material or the waste material of the synthetic resin plate is small, the end surface of the small end material or the waste material is the end surface of the synthetic resin thin layer different in color from the main body of the synthetic resin plate. Since it is always exposed, it is possible to judge whether the end material or waste material has the same product number or different product number by looking at the color of the synthetic resin thin layer. Also, since the synthetic resin thin layer has the same composition as the synthetic resin main body, the situation in which the composition is different does not occur even if both are replasticized.

[0012]

【Example】

 FIG. 1 is a perspective view illustrating a synthetic resin plate A according to an embodiment of the present invention. This synthetic resin plate A is provided with a display 2 corresponding to the type and product number of the synthetic resin plate body 1 over the entire area of one plate surface of the synthetic resin plate body 1.

The synthetic resin plate body 1 is, for example, a hard vinyl chloride plate, and is mainly made of polyvinyl chloride resin, and contains tin-based and lead-based stabilizers, MBS-based processing aids for improving impact resistance, etc. Additives are included in the prescribed mixing ratio. As the main polyvinyl chloride resin, straight vinyl chloride resin and chlorinated vinyl chloride resin for improving heat distortion temperature are used.

The product number of the synthetic resin plate body 1 is determined by the raw material and the composition of composition, and those that are the same or are set within a certain allowable same range are the same product number, and the other products are different product numbers. Is.

As the display 2, identifiable ones such as symbols, marks, patterns (including both continuous or discontinuous), pictorial patterns, and coloring are used, and the same display 2 is attached to the same part number. .. Indicating 2 on the entire plate surface of the synthetic resin plate body 1 means that the symbols 2 and marks are individually or independently displayed on the entire plate surface in a regular or random manner. In the case of a continuous pattern, the pattern is to be formed on the entire plate surface. When the display 2 is scattered, the scattered density should be such that when the synthetic resin plate A becomes a scrap material or a scrap material, the scrap material and the scrap material can be collected and reused. Should be so dense that it always exists on the surface of the scraps and scraps. For example, when collecting scraps having a width of 2 cm, it is necessary to make the display 2 exist at least every 2 cm. The display 2 is applied to the plate surface of the synthetic resin main body 1 by printing, displaying unevenness, or sticking a paper or film on which the display 2 is printed on the plate surface of the synthetic resin main body 1. be able to. In the case of printing, if the type of printing ink is properly selected so that it can be easily erased with a solvent such as water or alcohol, the display 2 is erased and the synthetic resin plate A is used. It becomes possible to do. In this case, since the indication 2 remains on the scraps and waste materials other than the used portion, it is possible to judge the product number by looking at the indication 2. The uneven display of the display 2 has an advantage that the display 2 is hard to disappear even if the plate surface is rubbed against something. Further, when the display 2 is used for an application or purpose that causes inconvenience, it is preferable to use the plate surface without the display 2 as the front surface. In the case where the paper or the film on which the display 2 is printed is attached, the display 2 corresponding to the product number can be provided only by changing the paper or the film. Further, when the synthetic resin plate body 1 is a transparent body, it is preferable to use paper or a film on which the display 2 is printed so as not to impair the transparency. The display 2 may be provided on both the front and back surfaces of the synthetic resin plate body 1 or only on one surface.

The display 2 may be made to correspond to the kind of the synthetic resin plate A. In this case, the raw materials and composition should be the same for each product type, or within the allowable range. Further, when the element other than the product type or the product number, for example, the manufacturing time or the manufacturing location corresponds to the product number, the manufacturing time or the manufacturing location may be identified by the display 2.

2 to 5 show a synthetic resin plate B according to an embodiment of the present invention. The synthetic resin plate B has a color different from that of the synthetic resin plate body 1 over the entire plate surface of the synthetic resin plate body 1 or the entire area of the resin layer, and has a color corresponding to the product number of the synthetic resin plate 1. Further, the synthetic resin thin layer 3 having the same composition as the synthetic resin main body 1 is laminated and integrated.

The synthetic resin thin layer 3 may be laminated anywhere on the synthetic resin plate body 1. In FIG. 2, a synthetic resin thin layer 3 is laminated and integrated in the center of the resin layer of the synthetic resin plate main body 1. In FIG. 3, a portion of the synthetic resin plate main body 1 near the plate surface on one side in the resin layer is shown. A synthetic resin thin layer 3 is laminated and integrated. In FIG. 4, two synthetic resin thin layers 3 are formed in the central portion of the resin layer of the synthetic resin plate main body 1 and at a portion near the plate surface on one side. FIG. 5 shows a laminated and integrated body of synthetic resin, and FIG. 5 shows a laminated body of a synthetic resin thin plate 3 on one side of the synthetic resin plate body 1.

The synthetic resin thin layer 3 has the same composition as the synthetic resin plate body 1 except that the pigment is an additional component, and the other composition is similar to that of the synthetic resin plate body 1. May be In this invention, these compositions are collectively referred to as substantially the same composition. This synthetic resin thin layer 3 is laminated and integrated by a simple and inexpensive method such as superposing an extremely thin resin film or resin thin plate having a thickness of about 0.1 to 0.5 mm on each synthetic resin plate body 1 and hot pressing it. Therefore, the production cost of the synthetic resin plate B does not significantly increase by providing the synthetic resin thin layer 3. Further, when the synthetic resin plate body 1 is extrusion-molded, the synthetic resin thin layer 3 may be provided by coextrusion.

According to this, since the end surface of the synthetic resin thin layer 3 having a color different from that of the synthetic resin plate body 1 is always exposed on the end surface of the end material or waste material, the color of the end surface of the synthetic resin thin layer 3 is exposed. You can easily determine the difference in the product numbers of scraps and scraps by looking at. Then, as shown in FIGS. 2 to 4, when the synthetic resin thin layer 3 is laminated in the resin layer of the synthetic resin plate body 1, even if the surface of the scrap material or waste material is worn, the end surface of the synthetic resin thin layer 3 is It has the advantage that the color of is never erased. In addition, in the synthetic resin plate B of FIG. 5, when the synthetic resin thin layer 3 is used for the purpose or the purpose in which it is inconvenient to see the synthetic resin thin layer 3, it is preferable to use the plate surface on which the synthetic resin thin layer 3 is not laminated as the surface. Further, it is preferable that the synthetic resin plate body 1 used for this is an opaque body, and if it is an opaque body, not the hue of the synthetic resin thin layer 3 but the hue of the synthetic resin plate body 1 can be seen.

The laminated position of the synthetic resin thin layer 3 may be made to correspond to the type of the synthetic resin plate B, the manufacturing time and the manufacturing place. When the synthetic resin plate B has a large thickness, the synthetic resin thin layers 3 are laminated and integrated in the resin layer of the synthetic resin plate body 1 or in the plate surface in multiple layers. If the thickness of 3 is changed or the arrangement order of the synthetic resin thin layers 3 having different thicknesses is changed, the end surface of the synthetic resin thin layer 3 exposed on the end surface of the synthetic resin plate body 1 can be seen. Can serve the same role as the barcodes currently used to identify a wide range of products, not only representing variety but also a great deal of other information.

Since the synthetic resin thin layer 3 has substantially the same composition as the synthetic resin plate body 1, when it is re-plasticized and recycled, the synthetic resin plate B has substantially the same composition as the original synthetic resin plate B. The board can be obtained.

[0023]

[Effect of the device]

 According to the invention of claim 1, the display of the surface of the end material or the waste material is viewed, and according to the invention of the claim 2, the color of the synthetic resin thin layer exposed on the end surface of the end material or the waste material is viewed, This has the effect of making it possible to quickly and easily and accurately determine differences in product numbers and the like. Therefore, when collecting scraps and scraps and using them for recycling, there is an advantage that mix of scraps and scraps of different kinds and product numbers is less likely to occur.

[Brief description of drawings]

FIG. 1 is a perspective view illustrating a synthetic resin plate according to an embodiment of the present invention.

FIG. 2 is a sectional view of a synthetic resin plate according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view of a synthetic resin plate according to another embodiment of the present invention.

FIG. 4 is a sectional view of a synthetic resin plate according to still another embodiment of the present invention.

FIG. 5 is a cross-sectional view of a synthetic resin plate according to still another embodiment of the present invention.

[Explanation of symbols]

 A, B Synthetic resin plate 1 Synthetic resin plate body 2 Display 3 Synthetic resin thin layer

Claims (2)

[Scope of utility model registration request] 1. A synthetic resin plate, wherein symbols, patterns and the like corresponding to the type and product number of the synthetic resin plate body are displayed over the entire area of the surface of the synthetic resin plate body. 2. The synthetic resin plate main body has a color different from that of the synthetic resin plate main body over the entire area of the plate surface or the resin layer, and has a color corresponding to the type and product number of the synthetic resin main body, and the synthetic resin. A synthetic resin plate in which thin synthetic resin layers having substantially the same composition as the main body are laminated and integrated.