TW411372B - Bio-degradable disposable food container and its production process - Google Patents

Abstract

A bio-degradable disposable food container and its production process is described. It is a container primarily based on natural ingredients through forming process. Powdery base materials obtained from grain bran, filler (calcium carbonate), binder (PVA, polyvinyl alcohol) and mold release agent are mixed in an adequate ratio using water as a medium, which results in a plastic mixture due to the binding effect of the binder with powdery base material, filler and mold release agent. The mixture is further processed through press molding to produce containers which are environment-friendly and can be used as fertilizer or animal feed after disposal.

Description

411372 V. Description of the invention α) [Application of the invention The process of the present invention, in particular, 1.1 v? T / σM- ^ device. [Inventive phase uses natural containers (such as: China Minsheng Tableware and its scope of application] It is a kind of disposable container made of Tiangong's suitable for natural degradable food and its organic materials as raw materials. It is non-toxic! It is made of 5 kinds of skills-忒 Food two-level technology] However, the material is made of paper cups and bowls) Manufacturing method of national patent application "Case No. 8-2040-9 No. 0-9) , And "disposable bowls and dew-related technologies for making disposable plates and bowls. Food manufacturing techniques that are used as raw materials to achieve environmental protection goals have long been well known, for example, No. 710438026" Jianwei (hereinafter referred to as the case No. 826) has been disclosed in patent applications such as "Method for Making Environmentally Friendly Dinner Plates" (hereinafter referred to as "Method for making trays" in US Patent No. 550000). The technology disclosed in the case No. 826 'is based on the original grains of grains and plant matter (or powder of tree shrews), blended with water, steamed for a period of time, and #cooled to a certain temperature. , Then High pressure is applied into the mold and then formed into tableware; although the raw materials used for this tableware are mainly natural, they must be formed through high temperature and high pressure processes (such as Luo place) in the process of making utensils. The required processing conditions are relatively strict, and the contained plant matter or cassava (starch) ingredients will make the cutlery made apparently poor in the humidity and humidity resistance, especially the starch is easily susceptible to moisture. Mold and deterioration, and these phenomena are no different for eating utensils with high safety standards

C: \ Program Files \ Patent \ p-0157tw.ptd Page 4 411372 5. Invention Description (2) is a fatal flaw. The technology disclosed in the 〇-9 case and the US Patent No. 5 0 0 889, the material used in the organic respect is a natural plant with a clear stripe beam. Vitamin 蛊 脔 忒 short fiber male .1 怍 is beaten, and then mixed with starch as an adhesive, then fully stirred and gelatinized into a gelatinous mixture, which is compressed and dried using a fine mesh breathable mold. After that, it is processed into a tableware and other utensils through a mold-setting process of heating and pressurizing molds, and finally can be completed after drying and solidification. Therefore, its process is obviously far more complicated than the aforementioned case No. 826. 'Because starch is used as an adhesive, there are still many problems such as resistance to water and moisture', and even mildew. As for the use of natural short fibers as the substrate, not only the steps for obtaining materials are complicated, but the structure formed by short fibers Moreover, the texture of the product will be porous and loose, and its ability to prevent leakage and water will be tested. As for the traditional technique of making paper cups or paper plates and tableware from paper, raw materials for papermaking must be obtained from wood, and the acquisition of wood will also have an impact on the ecology ’and consume precious natural resources. On the other hand, 'the above two known technologies must use a large amount of water in the production process'. Relatively, a lot of wastewater will be a threat to T-guarantee, and the treatment of wastewater will cause production costs. [Summary and Purpose of the Invention] The main purpose of the present invention is to provide an environmentally friendly disposable container for food that can be naturally decomposed and can even be used as fertilizer or feed. Thanks to this

411372 V. Description of the invention (3) The disposable disclosed in the Ming Dynasty is made of organic raw materials made of natural coriander skin, combined with non-toxic and naturally decomposable adhesives and fillers, so it can be used in a natural environment. Medium decomposition 'can even be used as fertilizer or feed, and 容 再 33 之 玟 3' can be divided or re-used in the loss of 柰; for fertilizer, or feed, it is a kind of environmental protection and has a very high Disposable containers for disposable foods of great value. A secondary object of the present invention is to provide a manufacturing technology of a disposable container for food, which is easy to manufacture, has low raw material price, easy to obtain raw materials, and meets environmental protection requirements. According to the disclosure, the “process for making a disposable container for food that can be naturally decomposed” is mainly a powdery substrate made of cereal rind, a filler (calcium carbonate; Ca 1 ci um Carbonate), and an adhesive. Agent (polyvinyl alcohol; PVA 'Polyvinyl Alcohol), and the release agent are mixed uniformly in the proper proportion' and then mixed with water as the medium, so that the powdery substrate and the filler are bonded into a kind by the bonding effect of the adhesive. A plastic mixture, which is then formed into a food-free disposable container by pressure molding (such as hydraulic molding), and then subjected to a simple drying and waterproof treatment, which can be made into a fine-grained and environmentally-friendly Food-free disposable containers. ^ Fa, the main raw material used is cereal rind. Because the output of cereals is extremely high, the relative value of cereal rind after taking out grains is also relatively great = quantity. Generally speaking, it is treated as waste, even if it is used for other purposes. , Its pot grid is also very cheap, and the acquisition of raw materials is not difficult; on the other hand, most of the so-called environmentally friendly tableware are mostly made of wood or paper.

C: \ Program Files \ Patent \ p-0157tw. Ptd

41J372

V. Description of the invention (4) Because it is not easy to obtain wood, it is also necessary to cut down forest trees to obtain 'so its cost is relatively high', which is inferior to the economics of the present invention. For the purpose of obtaining material tree stumps, it is a natural source of data. Increasingly precious and dwindling environmental words today are more difficult to use. This is in addition to indirectly affecting the ecological development and even causing major problems of soil and water conservation. It is another object of the present invention to provide a fine-texture leave-on content for food. 'As the present invention uses a powdery cereal rind, and then uses CAC03' Calcium Carbonate 'as a filler' for filling food The gap in the weaving group of the disposable container makes it possible to obtain a disposable disposable container for high-quality food, which is not as loose as a fibrous texture. ^ The disposable container disclosed in the invention only uses a small amount of water during the production process, and all of this water is used to prepare a slightly viscous composite material. Therefore, during the production process, There will not be a large amount of waste water, which is of great help to% guarantee and cost reduction. [Explanation of the drawings] = 1, according to the structure sectional view of the disposable container for food of the present invention. Fig. 2 is a production flow chart of the present invention. Fig. 3 is an external view of the first embodiment of the disposable container for food of the present invention. FIG. 4 is an external appearance view of a finished product of the second embodiment of the + σ gen-free disposable grain state of the present invention. j Take [Detailed description of the embodiment] Please refer to "Fig. 1", Tailu fipi a + * Wooden clam mouth "Food-free disposable container disclosed in the present invention

411372 structure and a composite material layer 20 for solids; and a Gou 0 η ^… ten π ^ ^ ^ U Younian) or vinyl 3 0 is distributed and in contact with the food layer 2 〇 not It is decomposed; but the other composite material layer is exempted for food use, then the food-free disposable container is not applied), and there is no waterproof layer for a long period of 30 years (one-year food-degraded food-free disposable book) The general use is more than the material layer 10, and the powder made from the skin is used to fill the composite to use the substrate, including: The water-free food-resistant contact-free food that constitutes the food-free disposable container 10. On the other hand, it is possible to wash the container 1 and the water layer 3 0 1 for 20. ◦ It is not completely unsuitable for food.) It affects the food container 10. Its basic end-like base material layer 1 and filler V. Description of the invention (5) 0, the solution is impregnated from its cross-section resins waterproof laminated food composite material, and the remaining surface is of course food (such as biscuits, etc.) Class 0; but regardless of whether it is unsuitable to be used as the main body of the exemption, it is said that the disposable cleaner disclosed in the present invention has been discarded. The above-mentioned compound a. Outside the cereal b. Filler, c. Adhesive, together. It is formed by liquid medicine. This washing container 10 is used to hold 100%, which is used to protect water or other ingredients, so that after the natural material 4 is discarded, it is naturally divided into 0 and not in contact with food. It is used to contain water. Food needs to form a waterproof layer. 3 Disposable containers 1 0. All packaging containers are used to clean things. That is, it is best to use common composition materials including: »0 gaps; and bonding by bonding.

411372 V. Description of the invention (6) In addition to the above three constituent substances, 'depending on the actual production process, an appropriate amount of release agent (such as boric acid core 03) is added to become a component of the composite material layer 10. First, and in principle, it is better to add eight in the form of liquid butterfly water; otherwise, it can also be applied directly on the surface of the cavity of the molded disposable container 10 Food-grade release agents such as grease and water to help release molds from disposable containers. The powdery substrate is obtained from the outer skin of cereals (such as rice and wheat), and the outer skin is ground into a very fine powder by a grinding device. In principle, this powdery substrate is It is better to pass more than 80 mesh. Filler is CaCo3; Calcium Carbonate is used to fill the gaps of the composite material to increase the compactness of the composite material. Polyvinyl Alcohol (PVA) can pass water as a lubricant, so that a mixture of these three basic constituents can form a slightly viscous composite material by bonding to facilitate the process. Forming and processing into utensils, please refer to "Table 1" for standing characteristics. Eight, please refer to "Figure 2", the process of the environmentally-friendly food container disclosed in the present invention includes: < Πσ (1) synthesize a composite material with microviscosity; (2) by pressure forming method (Such as oil pressure molding) 'press the aforementioned slightly viscous composite material into a preform of a disposable container for food 丨 〇; °

C: \ ProgramFiles \ Patent \ p-0157tw.ptd Page 9 411372 V. Description of the invention (7) (3) Drying and setting of the initial cleansing container 10 for food; and (4) forming a waterproof layer on the food Use a disposable container 10 for contact with food. The steps (1) and (2) include the following steps: (b. 1) Grind the cereal grains from the ground to a powdery substrate with a mesh size of about 100 mesh; (1-2) The powdery substrate , Filler and adhesive are stirred into a homogeneous mixture, and the weight ratio of these three is about 5: 2.8: 2.2, and the allowable variation of any one of the constituent materials is about ± 0.5; and ( 1-3) Mix the water and the mixture completed in step 2 with a weight ratio of approximately 1: 2.5 (and the allowable variation of the two is also about ± 5%), and stir into a little Viscous composite material. In the pressure forming method in step (2), the micro-adhesive composite material containing a small amount of water and in the form of a powder mass is directly formed by hydraulic pressure using a mold having a cavity shape of a disposable container 10. The method is to use the preforms of oil-free food container 10 in the mold. Of course, at the beginning of the preform of food food disposable container 10, if the raw material has unnecessary burrs, it can still have plasticity. It is easier to trim and cut. In the drying step of step (3), the hot air can be used to dry to a fixed shape without exceeding 200 ° C. The required time depends on the actual moisture content of the molded disposable food container 10 and the temperature of the hot air. set. The above step (4) includes the following steps:

C: \ Program Files \ Patent \ p-0157tw. Ptd page 10 411372 V. Description of the invention (8) '--- (4-1) Coating such as epoxy resin (ep〇xy ^ to ") or vinyl Water-based water repellent (oil-based water repellent can also be used) on food-free disposable containers q Contact surface of food; and aluminum can be fixed on the surface of disposable containers 10 Of course, after making the food-free disposable container 10, general sterilization treatment (such as ultraviolet sterilization) should be applied to ensure the hygiene and safety of the food-free disposable container.

^ Finally, please refer to "Figures 3 and 4", which is the appearance of the embodiment of the disposable container for disposable foods according to the process disclosed in the present invention, which can be 2 such as a cup 10a or It is a container with a deep belly f such as a bowl / pot 1 Ob. 'Because the depth of this type of disposable container for food 10 is large, the release slope of the product is usually very small.' In order to avoid damage to the finished product during demolding, Attention should be paid to the problem of mold release. In addition to the release technology as described above, a release agent (boric acid) is added to the composite material. 'You can also coat food mold grease, water wax and other mold release agents' on the surface of the mold. Successful completion of demolding D Because of the use of food-free disposable containers 〇 in most cases, it is unavoidable to come into contact with $ or liquid. 'At this time, the ability to maintain the capacity of 2 can be maintained without decomposition by the waterproof layer, If it is discarded as garbage after use, it can still be naturally decomposed in a short time by immersion / shell not coated with a waterproof layer 30, and it has the value of fertilizers. 'If it flows into rivers or lakes, it is The main body of natural organic matter is the main component, which can be used by fish Use 'without causing any pollution, it is clearly and Environmental Protection and practicality. Of course, the above embodiments are used to disclose the technical content of the present invention.

CAProgram Files \ Patent \ p-0157tw. Ptd Page 11 411372 V. Description of the invention (9) It is used to limit the scope of the present invention, but after familiarizing with the technical content of the present invention, without departing from the invention = change 'all It should be made clear from the following patent application scope k, 疋 / VV · 入 jj 1. It is environmentally friendly and will not cause the disclosed disposable food containers to be discarded after being discarded. An environmentally friendly food made from raw materials is discarded as garbage, and the value of fertilizer can be prepared in a short period of time. If it flows into rivers or lakes, the main body is composed of organic matter, and it will still be eaten instead of Cause any pollution. 2 · The raw materials are easy to obtain and low cost; the raw materials used to generate this environmentally-friendly container are mainly derived from grain owners. With the great help of grain production, the grain is not difficult, and it has been treated as waste. Except that there is no other obvious use value, another widely used environmentally-friendly raw material (wood) is obtained. [Illustration of the symbols in the figure] 1... Food-free disposable containers 10a. ...... Disposable cups • Disposable bowl / pot contact surface composite material layer waterproof layer. Artists understand any pollution under the technical characteristics; the natural and non-toxic container of the present invention is completely decomposed and used, Obviously, taking the substrate of the outer skin disclosed by the fish as the outer skin as the outer skin is obviously more cost-effective than obtaining feed. 1 Ob 10] 2 0. 3 0

411372 V. Description of the invention (ΙΟ) ~ ^ — The general characteristics of a CCP PVA ---_ ^ 目 3__ΙΓ ^ ^ __ White to pale yellow particles or powder f is really better than Emperor UDM 31. υ. Τ ~ 〇 The cooked text is qualitatively heated for a long time to more than 160 ° C and gradually turns yellow. Above 200 ° C, it quickly discolors and starts to decompose at about 220 ° C, and completely decomposes above 300 ° C. It is called high quality, solvent-resistant, hygroscopic, weak-acid and weak-salt. It is highly stable to animals, vegetable oils, petroleum-based hydrocarbons, esters, ketones, and higher alcohols. It is the best solvent-resistant material. One. It has lower hygroscopicity than other water-soluble polymers and is less affected by humidity. Damin PVA film except H20 is barrier to H2, N2, C02 and other gases. Light resistance: 4ι 04 * ~ '~~~-Quality is not affected by light. Film-forming properties PVA has excellent film-forming properties. Its physical properties such as tensile strength, tear strength, and abrasion resistance are better than other water-soluble resins. Non-toxic Pure PVA is not harmful to the human body; for example, stick drugs are used as adhesives. Now 7 knife β ,. ------- (Table 1) linsn C: \ Program Files \ Patent \ p-〇157tw.ptd page 13

Claims (1)

411372 Six 'patent scope 1, a kind of natural degradable food-free disposable container, which includes:-a composite material layer, which is used to form the entity of the food-free disposable container, including:-made of cereal outer skin; ^ = Cheng Jiujiaicai;-filler, which is calcium carbonate (Caif0_; Ca 1 cium Carbonate) 'to fill the gap between the materials; and an adhesive, which is polyethenol (PVA Polyvinyl A 1 coho 1) 'water is used as a medium to bond the substrate and the filler by bonding; and-the waterproof layer' is applied by coating such as epoxy resin (ep0Xy resins) or It is formed by vinyl-based oil-based or water-based waterproofing agent, and the waterproof layer is distributed on the food-free disposable container to hold food and the food-contacting surface to protect the composite material layer from moisture or Other ingredients impregnate and decompose. 2. Naturally decomposable food-free disposable containers as described in item 1 of the scope of application for patents. Tenth, the food-free disposable containers are deeper containers. 3. The natural degradable disposable container for food as described in item 2 of the scope of the patent application, wherein the disposable container for food is a cup. 4. The naturally degradable disposable container for food as described in item 2 of the scope of the patent application, wherein the disposable container for food is a bowl or basin. 5 '— A process for the production of a natural degradable disposable container for food, including: (1) synthesizing a slightly viscous composite material; (2) using a pressure forming method to add the slightly viscous composite material Press C: \ ProgramFiles \ Patent \ p-0157tw.ptd Page 14 411372 VI. The initial interest of applying for a patent to form a disposable container for food; (3) Drying and initializing the disposable container for food; and (4) The process of forming a waterproof layer on the food-free disposable container in contact with food6. The process of naturally decomposing a food-free disposable container as described in item 5 of the scope of the patent application, wherein the composite material is water-containing and has a Slightly sticky mass. 7. As described in item 5 of the scope of the patent application, a process of a disposable container for food that is naturally decomposable, wherein step (1) also includes: ^ (1-1) grinding out the grains of solid cereals into powder Into a substrate; U-2) stirring the powdery substrate with calcium carbonate (CaC | 3; Calcium Carbonate) and a polyvinyl alcohol (pVA; Polyvinyl Alcohol) into a homogeneous mixture; and (1-3) The water and the mixture are mixed together and mixed into a slightly viscous composite material. 8. The process for producing a naturally degradable disposable container for food as described in item 7 of the scope of the patent application, wherein the powdery substrate is about 80 to 120 mesh. 9. The process of a naturally degradable food-free disposable grainer as described in item 7 of the scope of the patent application, wherein the powdery substrate, calcium carbonate and the polyvinyl alcohol in step (1-2) are The weight ratio is about 5: 2, 8: 2.2. 1 0 'As described in item 9 of the scope of the patent application, the process of the naturally-degradable food-free disposable grain state, any of the permissible changes in the constituent substances C: \ Program Files \ Patent \ p-〇157tw. Ptd page 15 411372 6. The scope of patent application is about ± 0.5. 1 1. The process of a disposable container for food as described in item 7 of the scope of patent application, wherein the slightly viscous composite material is also added with suitable IT PPQ,. JtZ · -'-― / Vu pi jv ^ x. ii L · w 0 j 1 2 The process of the disposable container for food which can be naturally decomposed as described in item 7 of the scope of patent application, wherein the water and the mixture in step (1-3) are mutually The weight ratio between them is approximately 1: 2.5. 13. The process of a disposable container for food that can be naturally decomposed as described in item 12 of the scope of patent application, wherein the allowable variation of the water and the mixture is about ± 0.5. 14 4. The process of producing a naturally decomposable food-free disposable container as described in item 5 of the scope of patent application *, wherein step (2) is a micro-viscous composite material containing a small amount of water and in the form of a dough, using a preset The mold with cavity shape of the disposable container is directly formed into the preform of the disposable container for food by hydraulic pressure in the mold. 15. The process of a disposable container for food as described in item 5 of the scope of patent application, wherein step (2) further includes the initial chain for trimming the disposable container for food. 16. The process of a disposable container for foods that can be naturally decomposed as described in item 5 of the scope of patent application, wherein step (3) is performed by using hot air at a temperature not exceeding 200 ° C to dry to the final shape. 17 7. The process of the disposable container for food as described in item 5 of the scope of patent application, wherein step (4) includes: (4-1) coating epoxy resins or B Rare C: \ Program Files \ Patent \ p-0157tw.ptd page 16 411372 C: \ Program Files \ Patent \ p-0157tw, ptd page 17