Disposable edible thermoplastic starch full-degradable tableware

Abstract

The invention discloses disposable edible thermoplastic starch full-degradable tableware, which is prepared from the following raw materials in parts by weight: 40 to 60 parts of corn starch; 100 to 120 parts of a reinforcing material; 0-3 parts of gluten fortifying flour; 1-5 parts of food-grade gum; 2-4 parts of dietary fiber; 55 to 80 parts of water; according to the scheme, the formula components do not contain plastic components, and natural products are mainly used as raw material components, so that the formula belongs to a virtuous circle and is environment-friendly; besides, all the components in the formula of the scheme are degradable components and mainly edible components, so that the prepared product can be conveniently degraded and recycled after being used, and can also be eaten by microorganisms in compost without polluting the environment; the method has a good market application prospect.

Description

Technical Field

[0001] The present invention relates to the technical field of degradable tableware, and particularly to a disposable edible thermoplastic starch fully degradable tableware. Background Art

[0002] The development of tableware reflects the level of human science and technology and the degree of civilization, and it is more an indication of the progress of materials science. With the diversified development of dining scenarios, the demand for disposable tableware is increasing day by day. Currently, most disposable tableware is made of plastic. After being used and discarded, there are technical problems in difficult degradation. At the same time, after the plastic tableware is used, there are conditions such as oil stains and food residues on it, which increase the difficulty of handling plastic tableware; in addition, for tableware discarded outdoors, if not recycled well, the plastic material characteristics will make it difficult to degrade naturally and pose a risk of environmental pollution; and how to prepare tableware from degradable materials is a popular research topic at present. Some researchers search for suitable raw materials from natural biological materials such as plants and trees for auxiliary processing into degradable tableware, such as lunch boxes, straws, etc.; however, most of them have defects such as water seepage, poor structural strength, and strong dependence on chemical synthesis processing aids; therefore, how to provide a formulation system solution and its supporting processing method that are reliable in degradation, free of plastic components, and have a wide range of raw material sources while ensuring the normal use performance of tableware is a very meaningful research topic with positive practical significance. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a disposable edible thermoplastic starch fully degradable tableware that is reliable in degradation, low in cost, wide in raw material source, and stable in the structural performance of the finished product.

[0004] In order to achieve the above technical purpose, the technical solution adopted by the present invention is as follows:

[0005] A disposable edible thermoplastic starch fully degradable tableware, the raw materials of which include the following components in parts by weight:

[0006]

[0007]

[0008] As an example of a possible implementation, further, the reinforcing material in this solution is talcum powder with a particle size of 600 mesh.

[0009] As an example of a possible implementation, further, the food-grade glue in this solution includes 1 - 3 parts of kelp glue and / or 1 - 3 parts of gelatin.

[0010] As an example of a possible implementation, further, the raw materials of this solution also include 0 - 1.5 parts of a demolding agent.

[0011] As a preferred example of an implementation scheme, preferably, the raw materials of this scheme include the following components in parts by weight:

[0012]

[0013] Among them, the food-grade glue is kelp glue and gelatin, and their addition amounts are both 1.8 - 2.2 parts.

[0014] As a more preferred example of an implementation scheme, preferably, the raw materials of this scheme include the following components in parts by weight:

[0015]

[0016]

[0017] Among them, the food-grade glue is kelp glue and gelatin, and their addition amounts are both 2 parts.

[0018] Based on the above, this scheme also provides a degradable lunch box, and its raw materials include the raw material components of the above-mentioned disposable edible thermoplastic starch fully degradable food utensils.

[0019] Based on the above, this scheme also provides a processing method for disposable edible thermoplastic starch fully degradable food utensils, which is used for the processing of the above-mentioned disposable edible thermoplastic starch fully degradable food utensils or the processing of the above-mentioned degradable lunch box, and it includes the following steps:

[0020] Step 1: Put corn starch into a stirring device, then add reinforcing materials, gluten powder, food-grade glue, mold release agent and dietary fiber, and then carry out stirring treatment. Water is added during the stirring process to make the mixed material form into granules to obtain a mixed material;

[0021] Step 2: Send the mixed material into a processing device, heat the forming mold of the processing device to 240 - 250 °C, and then inject the mixed material into the forming mold so that the mixed material is formed into a preset food utensil shape in the cavity of the forming mold;

[0022] Step 3: After cooling the forming mold, demold to obtain the completely formed food utensils.

[0023] As a possible example of an implementation scheme, further, in the processing method of this scheme, after adding water during the stirring process, the mixed material is stirred into granules and does not adhere to each other.

[0024] As a possible example of an implementation scheme, further, in the processing method of this scheme, the mixed material is formed into a preset food utensil shape under a holding pressure of 0.48 - 0.52 Mpa in the cavity of the forming mold; the holding time is 18 - 22 seconds.

[0025] Adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] 1. The formula components of the tableware of this solution do not contain plastic components. It is mainly made of natural materials as raw material components, belonging to a benign cycle and being environmentally friendly;

[0027] 2. The formulated components proposed in this solution are all degradable components. After the tableware made therefrom is discarded, it has the effects of fast degradation time and good degradation degree;

[0028] 3. The formula of the tableware of this solution is mainly edible components. After the products made therefrom are used, they can be recycled as feed for livestock and fish, or eaten by microorganisms in compost without polluting the environment;

[0029] 4. The cost of the tableware formula of this solution is low, and the material sources are extensive. Some components are naturally milky white in appearance, so that when the products are processed, no whitening agent needs to be added, making it easy for users to accept;

[0030] 5. The tableware made from this solution has the effects of long storage time and stable properties;

[0031] 6. After the tableware made from this solution is used, it can be put into a household kitchenware crusher for crushing and then discarded as waste. It is easy to break and can be broken into powder in about ten seconds during the crushing process. This characteristic enables it to be crushed by the waste crusher on the transport equipment when used in transport equipment such as aircraft, bullet trains, and ships, while traditional plastic products cannot be processed in this way;

[0032] 7. The tableware made from this solution can also be appropriately heated in a microwave oven when containing food. Description of the Drawings

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0034] Figure 1 It is the image of the tableware made in Examples 1-4 and Comparative Examples 1-2 of this solution. Among them, the tableware made in Examples 1 to 4, Comparative Document 1 and Comparative Document 2 are successively as Figure 1 shown by the reference numerals 1-6 in the figure. Detailed Embodiments

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be specifically noted that the following embodiments are only used to illustrate the present invention, but do not limit the scope of the present invention. Similarly, the following embodiments are only partial embodiments of the present invention rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0036] Embodiment 1

[0037] A disposable edible thermoplastic starch fully degradable tableware in this embodiment, the raw materials of which include the following components in parts by weight:

[0038]

[0039] Among them, the particle size of talcum powder is 600 mesh, both the kelp gum and gelatin are food-grade gums, and the gluten powder is used as the gluten powder.

[0040] The solution of this embodiment also provides a processing method, which is used for the processing of the above-mentioned disposable edible thermoplastic starch fully degradable tableware or the processing of the above-mentioned degradable lunch box, and includes the following steps:

[0041] Step 1: Put corn starch into a stirring device, then add talcum powder, gluten powder, kelp gum, gelatin, mold release agent and dietary fiber, and then carry out stirring treatment. During the stirring process, water is slowly added to make the mixture be stirred into granular and non-sticky, and a mixture is obtained;

[0042] Step 2: Feed the mixture into a processing device, heat the forming die of the processing device to 245 °C, and then inject the mixture into the forming die, so that the mixture is formed into a preset tableware shape under a holding pressure of 0.5 Mpa in the cavity of the forming die; among them, the holding time is 20 seconds;

[0043] Step 3: After cooling the forming die, demold to obtain the completely formed tableware.

[0044] Embodiment 2

[0045] A disposable edible thermoplastic starch fully degradable tableware in this embodiment, the raw materials of which include the following components in parts by weight:

[0046]

[0047]

[0048] Among them, the particle size of talcum powder is 600 mesh, both the kelp gum and gelatin are food-grade gums, and the gluten powder is used as the gluten powder.

[0049] This embodiment also provides a processing method, which is used for the processing of the above-mentioned disposable edible thermoplastic starch fully degradable tableware or the processing of the above-mentioned degradable lunch box, and includes the following steps:

[0050] Step 1: Put corn starch into a stirring device, then add talcum powder, gluten powder, kelp gum, gelatin, mold release agent and dietary fiber, and then carry out stirring treatment. Slowly add water during the stirring process to make the mixture be stirred into granular and non-adhesive, and obtain the mixture;

[0051] Step 2: Feed the mixture into a processing device, heat the forming die of the processing device to 245 °C, and then inject the mixture into the forming die, so that the mixture is formed into a preset tableware shape under a holding pressure of 0.5 Mpa in the cavity of the forming die; among them, the holding time is 20 seconds;

[0052] Step 3: After cooling the forming die, demold to obtain the completely formed tableware.

[0053] Embodiment 3

[0054] For a disposable edible thermoplastic starch fully degradable tableware in this embodiment, its raw materials include the following components in parts by weight:

[0055]

[0056]

[0057] Among them, the particle size of the talcum powder is 600 mesh, both the kelp gum and the gelatin are food-grade gums, and the gluten powder is the gluten powder.

[0058] This embodiment also provides a processing method, which is used for the processing of the above-mentioned disposable edible thermoplastic starch fully degradable tableware or the processing of the above-mentioned degradable lunch box, and includes the following steps:

[0059] Step 1: Put corn starch into a stirring device, then add talcum powder, gluten powder, kelp gum, gelatin, mold release agent and dietary fiber, and then carry out stirring treatment. Slowly add water during the stirring process to make the mixture be stirred into granular and non-adhesive, and obtain the mixture;

[0060] Step 2: Feed the mixture into a processing device, heat the forming die of the processing device to 245 °C, and then inject the mixture into the forming die, so that the mixture is formed into a preset tableware shape under a holding pressure of 0.50 Mpa in the cavity of the forming die; among them, the holding time is 20 seconds;

[0061] Step 3: After cooling the forming die, demold to obtain the completely formed tableware.

[0062] Example 4

[0063] In this example, a disposable edible thermoplastic starch fully degradable tableware, the raw materials of which include the following components in parts by weight:

[0064]

[0065] Among them, the particle size of the talcum powder is 600 mesh, both the kelp glue and the gelatin are food-grade glues, and the gluten powder is the gluten powder.

[0066] The solution of this example also provides a processing method, which is used for the processing of the above-mentioned disposable edible thermoplastic starch fully degradable tableware or the processing of the above-mentioned degradable lunch box, and includes the following steps:

[0067] Step 1: Put the corn starch into a stirring device, then add talcum powder, gluten powder, kelp glue, gelatin, mold release agent and dietary fiber, and then carry out stirring treatment. During the stirring process, slowly add water to make the mixture be stirred into granular and non-sticky, and obtain a mixture;

[0068] Step 2: Send the mixture into a processing device, heat the forming die of the processing device to 245°C, and then inject the mixture into the forming die, so that the mixture is formed into a preset tableware shape under a holding pressure of 0.50 Mpa in the cavity of the forming die; among them, the holding time is 20 seconds;

[0069] Step 3: After cooling the forming die, demold to obtain the finally formed tableware.

[0070] Comparative Example 1

[0071] In this example, a disposable edible thermoplastic starch fully degradable tableware, the raw materials of which include the following components in parts by weight:

[0072]

[0073] Among them, the particle size of the talcum powder is 600 mesh, both the kelp glue and the gelatin are food-grade glues.

[0074] The solution of this example also provides a processing method, which is used for the processing of the above-mentioned disposable edible thermoplastic starch fully degradable tableware or the processing of the above-mentioned degradable lunch box, and includes the following steps:

[0075] Step 1: Put the corn starch into a stirring device, then add talcum powder, gelatin, mold release agent and dietary fiber, and then carry out stirring treatment. During the stirring process, slowly add water to make the mixture be stirred into granular and non-sticky, and obtain a mixture;

[0076] Step 2: Feed the mixture into the processing equipment, heat the forming die of the processing equipment to 245°C, and then inject the mixture into the forming die so that the mixture is formed into a preset catering utensil shape in the cavity of the forming die under a holding pressure of 0.50 Mpa; wherein, the holding time is 20 seconds;

[0077] Step 3: After cooling the forming die, demold to obtain the completely formed catering utensil.

[0078] Comparative Example 2

[0079] For a disposable edible thermoplastic starch fully degradable catering utensil in this embodiment, its raw materials include the following components in parts by weight:

[0080]

[0081] Among them, the particle size of the talcum powder is 600 mesh, both the kelp gum and the gelatin are food-grade gums, and the gluten powder is used as the gluten powder.

[0082] The solution of this embodiment also provides a processing method, which is used for the processing of the above-mentioned disposable edible thermoplastic starch fully degradable catering utensil or the processing of the above-mentioned degradable lunch box, and includes the following steps:

[0083] Step 1: Put the corn starch into the stirring equipment, then add talcum powder, gluten powder, food-grade gum, mold release agent and dietary fiber, and then carry out stirring treatment. During the stirring process, slowly add water to make the mixture stirred into granular and non-adhesive to obtain a mixture;

[0084] Step 2: Feed the mixture into the processing equipment, heat the forming die of the processing equipment to 245°C, and then inject the mixture into the forming die so that the mixture is formed into a preset catering utensil shape in the cavity of the forming die under a holding pressure of 0.50 Mpa; wherein, the holding time is 20 seconds;

[0085] Step 3: After cooling the forming die, demold to obtain the completely formed catering utensil.

[0086] Comparative Test

[0087] In the solution of this embodiment, for the catering utensils prepared in Examples 1 to 4, Comparative Document 1 and Comparative Document 2, image acquisition is carried out, as Figure 1 shown, the catering utensils prepared in Examples 1 to 4, Comparative Document 1 and Comparative Document 2 are successively as Figure 1 indicated by the reference numerals 1-6 in

[0088] According to the national mandatory standard GB 18006.1-2009 "General Technical Requirements for Disposable Plastic Tableware", the tableware prepared in Examples 1 to 4 of this solution, Comparative Document 1 and Comparative Document 2 were tested, and some of the test results are compared as follows:

[0089]

[0090]

[0091] From the above test comparison, it can be known that the formula structure of Example 3 of this solution is the most optimal in terms of comprehensiveness; based on the examples and comparative examples, it can be known that kelp gum and gluten powder have a better improvement on the physical properties of the tableware in the formula structure.

[0092] Compared with the traditional plastic fast food boxes, the formula of this solution has a lower cost, and there are no waste products and scraps in the production process. Compared with the prices of 48,000 yuan / T for the granular materials and 85,000 yuan / T for the powder materials of the existing commercially available raw materials PLA and PHA, the raw material components of the products of this solution have obvious advantages in terms of cost. At the same time, the degradation performance of the products processed from PLA and PHA materials is questionable. Therefore, this solution has a good market application prospect.

[0093] The above are only some embodiments of the present invention, and thus do not limit the protection scope of the present invention. Any equivalent device or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A disposable edible thermoplastic starch fully degradable food container, characterized in that, Its raw materials include the following components in parts by weight:

2. The disposable edible thermoplastic starch fully degradable food container according to claim 1, characterized in that, The reinforcing material is talcum powder with a particle size of 600 mesh.

3. The disposable edible thermoplastic starch fully degradable food container according to claim 1, characterized in that, The food-grade glue includes 1-3 parts of kelp glue and / or 1-3 parts of gelatin.

4. The disposable edible thermoplastic starch fully degradable catering utensils according to claim 1, characterized in that, The raw materials also include 0-1.5 parts of a release agent.

5. The disposable edible thermoplastic starch fully degradable food container according to any one of claims 1 to 4, characterized in that, Its raw materials include the following components in parts by weight: The food-grade glue is kelp glue and gelatin, and their addition amounts are both 1.8-2.2 parts.

6. The disposable edible thermoplastic starch fully degradable food container according to claim 5, characterized in that, Its raw materials include the following components in parts by weight: The food-grade glue is kelp glue and gelatin, and their addition amounts are both 2 parts.

7. A degradable lunch box, characterized in that, Its raw materials include the raw material components of the disposable edible thermoplastic starch fully degradable tableware according to any one of claims 1 to 6.

8. A processing method of a disposable edible thermoplastic starch fully degradable food container, which is used for the processing of the disposable edible thermoplastic starch fully degradable food container described in any one of claims 1 to 6 or the processing of the degradable lunch box described in claim 7, characterized in that, It includes: Put corn starch into a stirring device, then add the reinforcing material, gluten powder, food-grade glue, release agent and dietary fiber, and then carry out stirring treatment. Water is added during the stirring process to make the mixed material form particles to obtain a mixed material; Send the mixed material into a processing device, heat the forming die of the processing device to 240-250 °C, and then inject the mixed material into the forming die so that the mixed material is formed into a preset tableware shape in the cavity of the forming die; After cooling the forming die, demold to obtain the completely formed tableware.

9. The processing method of the disposable edible thermoplastic starch fully degradable food container according to claim 8, characterized in that, After adding water during the stirring process, the mixed material is stirred into particles and does not stick to each other.

10. The processing method of the disposable edible thermoplastic starch fully degradable catering utensils according to claim 8, characterized in that, The mixed material is formed into a preset tableware shape under a holding pressure of 0.48-0.52 Mpa in the cavity of the forming die; the holding time is 18-22 seconds.

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