CN115707410A - Plant fiber environment-friendly disposable tableware and preparation method thereof - Google Patents
Plant fiber environment-friendly disposable tableware and preparation method thereof Download PDFInfo
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- CN115707410A CN115707410A CN202211707192.0A CN202211707192A CN115707410A CN 115707410 A CN115707410 A CN 115707410A CN 202211707192 A CN202211707192 A CN 202211707192A CN 115707410 A CN115707410 A CN 115707410A
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Abstract
The invention relates to the technical field of environment-friendly tableware, and discloses environment-friendly disposable plant fiber tableware and a preparation method thereof, wherein the environment-friendly disposable plant fiber tableware comprises the following raw materials in parts by weight: 12-25 parts of dry rice straw, 8-13 parts of soybean straw, 10-18 parts of wheat straw, 10-20 parts of rice hull, 2-5 parts of starch, 1-4 parts of gelatin, 1-2 parts of calcium powder, 8-15 parts of adhesive, 3-7 parts of processing aid and 20-40 parts of water. The invention adopts dry straw, soybean straw, wheat straw and rice hull as main plant fiber raw materials, improves the strength and toughness of the disposable tableware after mixing and compatibility, greatly improves the plasticity of the materials after adding starch, gelatin, calcium powder, water and adhesive, ensures that the surface of the product is smooth and wear-resistant, meets the use requirements of people, simultaneously recycles crop straw, saves resources, avoids environmental pollution, solves the problems that the mechanical strength and plasticity of the existing degradable material are poor, simultaneously has high production cost and cannot meet the use requirements, and further cannot be widely popularized and applied.
Description
Technical Field
The invention relates to the technical field of environment-friendly tableware, in particular to environment-friendly disposable tableware made of plant fibers and a preparation method thereof.
Background
At present, with the development of fast food and take-out industries, the using amount of disposable tableware is increased year by year, the disposable tableware on the market comprises snack boxes, chopsticks, spoons and the like, the snack boxes mainly comprise high molecular compounds such as polystyrene, ethylene and the like, and the disposable tableware has the characteristics of difficult decomposition, toxicity, no degradation after being buried in soil for one hundred years and the like. It is difficult to degrade and therefore causes new pollution to the environment. It is white pollution, can emit a large amount of toxic gas when burning, and does not rot for two hundred years, causing serious harm to the environment. The results of foreign research show that if the polystyrene polymer is not completely polymerized in the synthesis process, the polystyrene polymer can be combined into styrene monomer, dimer and trimer to be dissolved out, and the styrene monomer, dimer and trimer can be used for packaging food, so that the health hazard is great. Especially when the food is filled with hot food, harmful substances in the food can be sucked out and coagulated on the food, and when people eat the food, not only the liver and the kidney are damaged, but also the function of the food can be changed. These disposable foamed plastic tableware are difficult to recycle after being used up; is not easy to rot and degrade in the environment; the foaming agent used in the production of some enterprises is butane (namely the gas of a lighter), so that the foaming agent is easy to catch fire and is unsafe. The snack box can generate toxin and carcinogen dioxin harmful to human bodies at the high temperature of more than 65 ℃, the dioxin is a toxic chlorine-containing compound which is known in the world to have the strongest poisoning property and extremely strong carcinogenicity, can cause serious skin diseases and injuries to fetuses and is also possible to be female; the direct and indirect treatment cost of one ton of disposable snack box garbage is more than 10 times of the original production value. Therefore, these "white contaminations" not only waste resources, increase the state and people's unproductive economic pressures, but also leave a big problem for offspring. While the chopsticks in the disposable tableware are generally made of trees or bamboos, and the wood chopsticks cause a great deal of forest lands to be damaged; and the inferior chopsticks are not clean and are a sanitary illusion.
Although some starch-based degradable materials appearing in recent years solve the problem of white pollution caused by foamed plastics, the degradable materials have poor mechanical strength and plasticity, and meanwhile, the production cost is high, the product quality cannot meet the use requirement, and further cannot be widely popularized and applied.
Disclosure of Invention
The invention aims to provide an environment-friendly disposable tableware made of plant fibers and a preparation method thereof, which have the advantages of high mechanical strength and plasticity and low cost and good quality, and solve the problems that the existing degradable material has poor mechanical strength and plasticity, and meanwhile, the production cost is high, the product quality cannot meet the use requirement, and further cannot be widely popularized and applied.
In order to achieve the purpose, the invention provides the following technical scheme: an environment-friendly disposable tableware made of plant fiber comprises the following raw materials in parts by weight:
12-25 parts of dry rice straw, 8-13 parts of soybean straw, 10-18 parts of wheat straw, 10-20 parts of rice hull, 2-5 parts of starch, 1-4 parts of gelatin, 1-2 parts of calcium powder, 8-15 parts of adhesive, 3-7 parts of processing aid and 20-40 parts of water.
Preferably, the plant fiber environment-friendly disposable tableware comprises the following raw materials in parts by weight:
18 parts of dry straw, 10 parts of soybean straw, 15 parts of wheat straw, 15 parts of rice hull, 3 parts of starch, 3 parts of gelatin, 2 parts of calcium powder, 7 parts of adhesive, 5 parts of processing aid and 30 parts of water.
Preferably, the adhesive is protein powder, shellac, dextrin, calcium lignosulfonate in a weight ratio of 1.5:1:0.5:1.2 of the composition.
Preferably, the processing aid is calcium stearate, gallic acid, titanium dioxide and zinc borate according to a weight ratio of 2:0.5:1.2:1.3 of the composition.
The invention also provides a preparation method of the plant fiber environment-friendly disposable tableware, which comprises the following steps:
s1: collecting dry rice straw, soybean straw, wheat straw and rice hull, cleaning, sterilizing, and drying to remove water;
s2: weighing and preparing raw materials of each component according to requirements;
s3: feeding the standby dry rice straws, soybean straws, wheat straws and rice husks into a pulverizer to be pulverized to 40-85 meshes, uniformly mixing, and then feeding into a high-temperature disinfection chamber to be disinfected for 3-5 minutes at the temperature of 150-220 ℃ to obtain a mixed plant fiber raw material A;
s4: dissolving gelatin in water, adding starch, calcium powder and adhesive, adding into a high-speed stirrer, stirring at 50-70 deg.C for 12-25 min at a rotation speed of 330-450r/min, adding the mixed plant fiber material A prepared in S3 and processing aid, and stirring for 15-25 min to obtain a mixture B;
s5: and (5) adding the mixture B prepared in the step (S4) into a hot-pressing forming machine, carrying out extrusion forming at high temperature and high pressure, wherein the extrusion temperature is 350-400 ℃, polishing and trimming the formed tableware, sending the tableware into an ultraviolet ray disinfection machine, fully disinfecting, and carrying out aseptic packaging to obtain the plant fiber environment-friendly disposable tableware.
Preferably, the preparation method of the plant fiber environment-friendly disposable tableware comprises the following steps:
s1: collecting dry rice straw, soybean straw, wheat straw and rice hull, cleaning, sterilizing, and oven drying;
s2: weighing and preparing raw materials of each component according to requirements;
s3: sending the standby dry straw, soybean straw, wheat straw and rice hull into a pulverizer to be pulverized to 70 meshes, uniformly mixing, and then sending into a high-temperature disinfection chamber to be disinfected for 4 minutes at the temperature of 200 ℃ to obtain a mixed plant fiber raw material A;
s4: dissolving gelatin in water, adding starch, calcium powder and adhesive, adding into a high-speed stirrer, stirring at 60 deg.C for 18 min at a rotation speed of 420r/min, adding the mixed plant fiber raw material A prepared by S3 and processing aid, and stirring for 19 min to obtain a mixture B;
s5: and (5) adding the mixture B prepared in the step (S4) into a hot-pressing forming machine, carrying out extrusion forming at high temperature and high pressure, wherein the extrusion temperature is 390 ℃, polishing and trimming the formed tableware, sending the tableware into an ultraviolet disinfection machine, fully disinfecting, and carrying out aseptic packaging to obtain the plant fiber environment-friendly disposable tableware.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention adopts dry straw, soybean straw, wheat straw and rice hull as main plant fiber raw materials, improves the strength and toughness of the disposable tableware after mixing and compatibility, greatly improves the plasticity of the materials after adding starch, gelatin, calcium powder, water and adhesive, ensures that the surface of the product is smooth and wear-resistant, meets the use requirements of people, simultaneously recycles crop straw, saves resources and avoids environmental pollution.
2. The invention can sterilize for many times in the preparation process, thereby ensuring the safety of tableware and protecting the health of human body.
3. The product of the invention is green and environment-friendly, can be degraded, has low cost, is safe and convenient, has good application prospect, and is beneficial to market popularization.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
An environment-friendly disposable tableware made of plant fiber comprises the following raw materials in parts by weight:
12 parts of dry straw, 8 parts of soybean straw, 10 parts of wheat straw, 10 parts of rice hull, 2 parts of starch, 1 part of gelatin, 1 part of calcium powder, 8 parts of adhesive, 3 parts of processing aid and 20 parts of water.
The adhesive is protein powder, shellac, dextrin and calcium lignosulphonate in a weight ratio of 1.5:1:0.5:1.2 of the composition.
The processing aid is calcium stearate, gallic acid, titanium dioxide and zinc borate according to a weight ratio of 2:0.5:1.2:1.3 of the composition.
The preparation method of the plant fiber environment-friendly disposable tableware comprises the following steps:
s1: collecting dry rice straw, soybean straw, wheat straw and rice hull, cleaning, sterilizing, and oven drying;
s2: weighing and preparing raw materials of each component according to requirements;
s3: sending the standby dry straw, soybean straw, wheat straw and rice hull into a pulverizer to be pulverized to 70 meshes, uniformly mixing, and then sending into a high-temperature disinfection chamber to be disinfected for 4 minutes at the temperature of 200 ℃ to obtain a mixed plant fiber raw material A;
s4: dissolving gelatin in water, adding starch, calcium powder and adhesive, adding into a high-speed stirrer, stirring at 60 deg.C for 18 min at a rotation speed of 420r/min, adding the mixed plant fiber raw material A prepared by S3 and processing aid, and stirring for 19 min to obtain a mixture B;
s5: and (3) adding the mixture B prepared in the step (4) into a hot-press forming machine, carrying out extrusion forming at high temperature and high pressure, wherein the extrusion temperature is 390 ℃, polishing and trimming the formed tableware, then sending the tableware into an ultraviolet disinfection machine, and carrying out sterile packaging after sufficient disinfection to obtain the plant fiber environment-friendly disposable tableware.
Example 2
An environment-friendly disposable tableware made of plant fiber comprises the following raw materials in parts by weight:
25 parts of dry rice straw, 13 parts of soybean straw, 18 parts of wheat straw, 20 parts of rice hull, 5 parts of starch, 4 parts of gelatin, 2 parts of calcium powder, 15 parts of adhesive, 7 parts of processing aid and 40 parts of water.
The adhesive is protein powder, shellac, dextrin and calcium lignosulphonate in a weight ratio of 1.5:1:0.5:1.2 of the composition.
The processing aid is calcium stearate, gallic acid, titanium dioxide and zinc borate according to a weight ratio of 2:0.5:1.2:1.3 of the composition.
The preparation method of the plant fiber environment-friendly disposable tableware comprises the following steps:
s1: collecting dry rice straw, soybean straw, wheat straw and rice hull, cleaning, sterilizing, and oven drying;
s2: weighing and preparing raw materials of each component according to requirements;
s3: sending the standby dry straws, soybean straws, wheat straws and rice husks into a pulverizer to be pulverized to 70 meshes, uniformly mixing, and then sending into a high-temperature disinfection chamber to be disinfected for 4 minutes at the temperature of 200 ℃ to obtain a mixed plant fiber raw material A;
s4: dissolving gelatin in water, adding starch, calcium powder and adhesive, adding into a high-speed stirrer, stirring at 60 deg.C for 18 min at a rotation speed of 420r/min, adding the mixed plant fiber raw material A prepared by S3 and processing aid, and stirring for 19 min to obtain a mixture B;
s5: and (3) adding the mixture B prepared in the step (4) into a hot-press forming machine, carrying out extrusion forming at high temperature and high pressure, wherein the extrusion temperature is 390 ℃, polishing and trimming the formed tableware, then sending the tableware into an ultraviolet disinfection machine, and carrying out sterile packaging after sufficient disinfection to obtain the plant fiber environment-friendly disposable tableware.
Example 3
An environment-friendly disposable tableware made of plant fiber comprises the following raw materials in parts by weight:
18 parts of dry straw, 10 parts of soybean straw, 15 parts of wheat straw, 15 parts of rice hull, 3 parts of starch, 3 parts of gelatin, 2 parts of calcium powder, 7 parts of adhesive, 5 parts of processing aid and 30 parts of water.
The adhesive is protein powder, shellac, dextrin and calcium lignosulphonate in a weight ratio of 1.5:1:0.5:1.2 of the composition.
The processing aid is calcium stearate, gallic acid, titanium dioxide and zinc borate according to a weight ratio of 2:0.5:1.2:1.3 of the composition.
The preparation method of the plant fiber environment-friendly disposable tableware comprises the following steps:
s1: collecting dry rice straw, soybean straw, wheat straw and rice hull, cleaning, sterilizing, and oven drying;
s2: weighing and preparing raw materials of each component according to requirements;
s3: sending the standby dry straws, soybean straws, wheat straws and rice husks into a pulverizer to be pulverized to 70 meshes, uniformly mixing, and then sending into a high-temperature disinfection chamber to be disinfected for 4 minutes at the temperature of 200 ℃ to obtain a mixed plant fiber raw material A;
s4: dissolving gelatin in water, adding starch, calcium powder and adhesive, adding into a high-speed stirrer, stirring at 60 deg.C for 18 min at a stirring speed of 420r/min, adding the mixed plant fiber raw material A prepared in S3 and processing aid, and continuously stirring for 19 min to obtain a mixture B;
s5: and (3) adding the mixture B prepared in the step (4) into a hot-press forming machine, carrying out extrusion forming at high temperature and high pressure, wherein the extrusion temperature is 390 ℃, polishing and trimming the formed tableware, then sending the tableware into an ultraviolet disinfection machine, and carrying out sterile packaging after sufficient disinfection to obtain the plant fiber environment-friendly disposable tableware.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a disposable tableware of plant fiber environmental protection which characterized in that: the feed comprises the following raw materials in parts by weight:
12-25 parts of dry rice straw, 8-13 parts of soybean straw, 10-18 parts of wheat straw, 10-20 parts of rice hull, 2-5 parts of starch, 1-4 parts of gelatin, 1-2 parts of calcium powder, 8-15 parts of adhesive, 3-7 parts of processing aid and 20-40 parts of water.
2. The plant fiber environment-friendly disposable tableware according to claim 1, which is characterized in that: the plant fiber environment-friendly disposable tableware comprises the following raw materials in parts by weight:
18 parts of dry straw, 10 parts of soybean straw, 15 parts of wheat straw, 15 parts of rice hull, 3 parts of starch, 3 parts of gelatin, 2 parts of calcium powder, 7 parts of adhesive, 5 parts of processing aid and 30 parts of water.
3. The plant fiber environment-friendly disposable tableware according to claim 1 or 2, wherein: the adhesive is protein powder, shellac, dextrin and calcium lignosulphonate according to a weight ratio of 1.5:1:0.5:1.2 of the composition.
4. The plant fiber environment-friendly disposable tableware according to claim 1 or 2, wherein: the processing aid is calcium stearate, gallic acid, titanium dioxide and zinc borate according to a weight ratio of 2:0.5:1.2:1.3 of the composition.
5. A method for preparing an environment-friendly disposable tableware of plant fiber according to any one of claims 1 to 4, comprising the steps of: the method comprises the following steps:
s1: collecting dry rice straw, soybean straw, wheat straw and rice hull, cleaning, sterilizing, and oven drying;
s2: weighing and preparing raw materials of each component according to requirements;
s3: feeding the prepared dry rice straw, soybean straw, wheat straw and rice hull into a pulverizer to pulverize to 40-85 meshes, uniformly mixing, and then feeding into a high-temperature disinfection chamber to disinfect at 150-220 ℃ for 3-5 minutes to obtain a mixed plant fiber raw material A;
s4: dissolving gelatin in water, adding starch, calcium powder and adhesive, adding into a high-speed stirrer, stirring at 50-70 deg.C for 12-25 min at a rotation speed of 330-450r/min, adding the mixed plant fiber material A prepared in S3 and processing aid, and stirring for 15-25 min to obtain a mixture B;
s5: and (3) adding the mixture B prepared in the step (4) into a hot-press forming machine, carrying out extrusion forming at high temperature and high pressure, wherein the extrusion temperature is 350-400 ℃, polishing and trimming the formed tableware, then sending the tableware into an ultraviolet disinfection machine, fully disinfecting, and carrying out aseptic packaging to obtain the plant fiber environment-friendly disposable tableware.
6. The method for preparing environment-friendly disposable tableware of plant fiber according to claim 5, wherein the method comprises the following steps: the steps are as follows:
s1: collecting dry rice straw, soybean straw, wheat straw and rice hull, cleaning, sterilizing, and oven drying;
s2: weighing and preparing raw materials of each component according to requirements;
s3: sending the standby dry straw, soybean straw, wheat straw and rice hull into a pulverizer to be pulverized to 70 meshes, uniformly mixing, and then sending into a high-temperature disinfection chamber to be disinfected for 4 minutes at the temperature of 200 ℃ to obtain a mixed plant fiber raw material A;
s4: dissolving gelatin in water, adding starch, calcium powder and adhesive, adding into a high-speed stirrer, stirring at 60 deg.C for 18 min at a rotation speed of 420r/min, adding the mixed plant fiber raw material A prepared by S3 and processing aid, and stirring for 19 min to obtain a mixture B;
s5: and (5) adding the mixture B prepared in the step (S4) into a hot-pressing forming machine, carrying out extrusion forming at high temperature and high pressure, wherein the extrusion temperature is 390 ℃, polishing and trimming the formed tableware, sending the tableware into an ultraviolet disinfection machine, fully disinfecting, and carrying out aseptic packaging to obtain the plant fiber environment-friendly disposable tableware.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211707192.0A CN115707410A (en) | 2022-12-29 | 2022-12-29 | Plant fiber environment-friendly disposable tableware and preparation method thereof |
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| CN202211707192.0A CN115707410A (en) | 2022-12-29 | 2022-12-29 | Plant fiber environment-friendly disposable tableware and preparation method thereof |
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