CN110761111A - Oyster paper and its making method - Google Patents
Oyster paper and its making method Download PDFInfo
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- CN110761111A CN110761111A CN201810851085.2A CN201810851085A CN110761111A CN 110761111 A CN110761111 A CN 110761111A CN 201810851085 A CN201810851085 A CN 201810851085A CN 110761111 A CN110761111 A CN 110761111A
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/675—Oxides, hydroxides or carbonates
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/35—Polyalkenes, e.g. polystyrene
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
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Abstract
An oyster paper and its manufacturing method, the oyster paper is prepared by mixing and pre-melting 60% -70% oyster shell powder, 10% -20% polymer, 15% -17% natural biodegradation inducer and 3% -5% natural biodegradation auxiliary additive according to the proportion, then mixing and granulating to prepare a plurality of oyster paper particles, then blowing the oyster paper particles to form oyster paper finished products with the thickness of 0.05 mm to 0.5 mm by a film blowing step, the oyster paper has texture similar to paper, better toughness and wide application, and, the oyster paper has the effect that 100 percent of waste buried soil microorganisms induce natural degradation into compost nourishing soil after use, so as to form the oyster paper with the functions of recycling marine organism waste shell materials, inducing degradation by natural microorganisms and recycling compost and the manufacturing method thereof.
Description
Technical Field
The present invention relates to oyster paper and its making process, and is especially oyster paper capable of being used as substitute of paper pulp and naturally degraded after being discarded and its making process.
Background
The paper products made of the existing paper pulp are widely used for writing, printing, container containing and other purposes and application occasions, the quantity of paper products required to be consumed every day in the world is quite large, particularly a large quantity of advertisement printed products and products such as paper bags and paper box containers, the main component of the paper products is the paper pulp made of wood materials, a large quantity of native trees are needed to be cut down to be used as a source of the paper pulp materials, so that a large quantity of natural forests and native rainforests are greatly damaged and disappear from maps, the crisis of global ecological damage and green environment elimination is caused, in addition, the existing paper products or paper products cause a large quantity of useless garbage accumulation after being discarded, if a soil burying and discarding mode is adopted, the discarded paper products or paper products cannot be naturally, rapidly and effectively decomposed, a large-area garbage landfill is required, and the economic benefit and the land utilization efficiency are not met, if the waste paper products or paper products are solved by combustion, a large amount of carbon dioxide air pollution is generated, and the environment is polluted secondarily, so that the problem to be solved by the existing paper products and paper products is really solved.
Furthermore, if the conventional paper products are considered to solve the problem of paper waste or paper product waste by recycling, regenerating and reproducing recycled paper or recycled paper, the recycled and reproduced paper pulp has high cost and causes environmental pollution with high water pollution in the process of producing recycled paper pulp, and in countries and regions such as China, Europe, America and the like, the local government has gradually applied strict environmental regulations to limit pollution and reduce the number of paper pulp mills and recycled paper pulp mills, so that the solution is useless, and the problem that the environmental pollution is harmed by the large amount of waste paper or paper products cannot be solved.
In addition, in the related prior patent documents, as disclosed in japanese patent laid-open publication No. 201024501, "stone paper manufacturing technology", patent publication No. 201418545, "environment-friendly paper made of stone and manufacturing method thereof", patent publication No. 201418545, both disclose that stone paper products with paper-like function are manufactured by adding plastic such as non-toxic resin and PE (Polyethylene) to stone powder and nano calcium carbonate, respectively, in order to replace the paper products made of the above-mentioned existing pulp, but since the stone paper of the above-mentioned two patent publications is discarded, the PE plastic cannot be biodegraded, the environmental problem of a large amount of garbage accumulation is still caused, and the stone paper requires a large amount of stone powder and calcium carbonate, and a large amount of natural mountain stones must be chiseled to obtain stones and then crushed, rather, the natural environment ecology, topography and soil ecology are exposed to secondary destruction and hijacking, and has no value for industrial utilization.
Further, as disclosed in the invention of Taiwan patent publication No. I507296, "Green paper and method for manufacturing the same", plastic paper made of polymer material, inorganic material, organic material and foaming agent is disclosed as an alternative to the conventional paper products made of pulp, but the inorganic material in the patent publication is selected from calcium carbonate (Calcimum carbonate), kaolin and titanium dioxide (TiO)2) At least one ore powder is still like the two stone paper patents, a large amount of natural mountain stones or ores must be mined, and the natural environment ecology, landform and state ecology are still damaged, and the ore powder has no industrial utilization value.
In addition, as disclosed in U.S. patent No. 5,919,574, "Biodegradable laminated film from and packaging and chitosan (Biodegradable laminated film made of pectin and chitosan), it is not suitable as a substitute for paper products made of pulp due to insufficient strength and toughness, and especially, starch (starch) is added to the patent, which makes the whole film structure weaker.
The paper products made of the existing paper pulp and the prior proposals of the patents have the problems and the disadvantages that natural trees need to be cut down in a large quantity, water pollution is caused in the paper pulp making process, stone paper needs to exploit ore and raw stone resources in a large quantity, the natural ecology and the national soil conservation are damaged, the natural degradation cannot be realized, and the film products are not strong enough and can generate atomization, so that the film products cannot be applied to replace paper products made of the paper pulp.
Disclosure of Invention
The main technical problem to be solved by the present invention is to overcome the above defects in the prior art and provide an oyster paper and a manufacturing method thereof, wherein a paper pulp raw paper substitute material is applied, and the oyster paper contains marine waste oyster shells and a natural biodegradation inducer, so as to prepare the oyster paper which can replace paper pulp paper and can be naturally degraded after being discarded.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the oyster paper is characterized in that oyster shell powder accounting for 60-70% of the volume ratio, polymer accounting for 10-20% of the volume ratio, natural biodegradation inducer accounting for 15-17% of the volume ratio and natural biodegradation auxiliary additive accounting for 3-5% of the volume ratio are mixed and pre-melted respectively according to the ratio, then are mixed and granulated to prepare a plurality of oyster paper particles, and then are subjected to film blowing treatment to form an oyster paper finished product with the thickness of 0.05-0.5 mm.
Further, the oyster paper of the present invention is characterized in that the oyster shell powder is selected from oyster shell powders calcined at 600 to 800 ℃, having 2000 mesh size and having a powder particle size of less than 6.5 micrometers (μm).
The oyster paper according to the present invention is characterized in that the polymer is one or a combination of polyethylene and polypropylene.
The oyster paper according to the present invention is characterized in that the polyethylene group of the polymer is composed of linear low density polyethylene, high density polyethylene, low density polyethylene, and medium density polyethylene.
The oyster paper according to the present invention is characterized in that the natural biodegradation inducing agent is selected from Chitosan (Chitosan).
The oyster paper according to the present invention is characterized in that the chitosan of the natural biodegradation inducer is a deacetylation product of chitin.
The oyster paper according to the present invention is characterized in that the natural biodegradation auxiliary additive is any one or a combination of guar gum (guar gum) and vegetable and fruit ferment.
The oyster paper according to the present invention is characterized in that the vegetable and fruit ferment of the natural biodegradation auxiliary additive is selected from any one of soybean, okra, and pineapple (pineapple) or a combination of at least any two of the soybean, okra, and pineapple.
The invention relates to a manufacturing method of oyster paper, which is characterized by comprising the following steps:
(A) mixing and pre-melting materials, namely mixing and pre-melting 60 to 70 percent of oyster shell powder, 10 to 20 percent of polymer, 15 to 17 percent of natural biodegradation inducer and 3 to 5 percent of natural biodegradation auxiliary additive according to the volume ratio respectively;
(B) mixing and granulating to prepare oyster paper particles, mixing and granulating the mixed and pre-melted material obtained in the step (A) at the temperature of 110-150 ℃ to prepare a plurality of oyster paper particles;
(C) performing film blowing treatment, namely performing film blowing treatment on the oyster paper particles prepared in the step (B) at the temperature of 110-150 ℃; and
(D) and (C) forming the oyster paper, and forming into a finished oyster paper product with the thickness of 0.05-0.5 mm after the film blowing treatment in the step (C).
Further, the method for manufacturing the oyster paper according to the present invention is characterized in that the oyster shell powder in the step (a) is selected from oyster shell powders which have been calcined at 600 to 800 ℃, have a mesh size of 2000 meshes, and have a particle size of less than 6.5 μm.
The method for manufacturing the oyster paper according to the present invention is characterized in that the polymer in the step (a) is one selected from the group consisting of polyethylenes, polypropylenes, and combinations thereof.
The method for producing an oyster paper according to the present invention is characterized in that the polyethylene group of the polymer in the step (a) is composed of linear low density polyethylene, high density polyethylene, low density polyethylene, and medium density polyethylene.
The method for manufacturing oyster paper according to the present invention is characterized in that the natural biodegradation inducing agent of the step (a) is selected from chitosan.
The above method for manufacturing oyster paper according to the present invention is characterized in that the chitosan of the natural biodegradation inducing agent of the step (a) is composed of a deacetylation product of chitin.
The method for manufacturing oyster paper according to the present invention is characterized in that the natural biodegradation auxiliary additive in step (a) is selected from any one of guar gum, vegetable and fruit ferment, or a combination thereof.
The method for manufacturing oyster paper according to the present invention is characterized in that the vegetable and fruit ferment of the natural biodegradation auxiliary additive of step (a) is selected from any one of soybean, okra and pineapple or a combination of at least any two of the soybean, okra and pineapple.
The above-mentioned oyster paper manufacturing method of the invention is characterized in that the oyster shell powder preparation step of step (a) comprises:
(A1) cleaning oyster shells, and cleaning the surfaces and the interiors of the waste oyster shells;
(A2) desalting, namely desalting the oyster shells cleaned in the step (A1);
(A3) crushing, namely putting the oyster shells subjected to the desalting treatment in the step (A2) into a crusher to be crushed into a plurality of oyster shell fragments;
(A4) calcining and sterilizing, namely calcining and sterilizing the oyster shell fragments formed by crushing in the step (A3) in a high-temperature rotary calcining furnace at the temperature of 600-800 ℃;
(A5) grinding, namely putting the oyster shell fragments subjected to the calcination sterilization treatment in the step (A4) into a grinder to be ground into oyster shell particles; and
(A6) and (4) filtering and forming, namely filtering the oyster shell powder particles formed by grinding in the step (A5) by using a screen with the mesh of 2000 meshes to obtain the oyster shell powder finished product with the mesh number of 2000 meshes and the powder particle size of less than 6.5 microns.
The method for manufacturing the oyster paper is characterized in that in the step (B), a plastic internal mixer is used for mixing and granulating.
The above-mentioned method for producing an oyster paper according to the present invention is characterized in that in the step (B), a screw mixer is used for kneading and granulation.
The method for manufacturing the oyster paper is characterized in that in the step (C), a plastic single-layer or multi-layer co-extrusion film blowing machine is used for performing film blowing treatment on the oyster paper particles.
The oyster paper and the manufacturing method of the invention have the effects that the oyster shell is used as the main raw material, and the polymer, the natural biodegradation inducer and the natural biodegradation auxiliary additive are mixed, pre-melted, mixed, granulated and blown to process the raw material to form the oyster paper which has the recycling of waste resources and the toughness and texture of paper products made of paper pulp, so as to provide the application effects of fast food restaurant paper bags, various shopping paper bags, advertisement board viewing paper, sea newspaper, civil and industrial packaging paper bags, envelope bag paper, printed matters and the like, and the oyster paper can provide the waterproof and nontoxic characteristics, can be recycled and reused to be made into secondary cycle materials after being used, and can completely eliminate the problems and disadvantages that the prior paper pulp and paper product technologies need to cut down a large amount of trees, and the natural stone material is mined to destroy the native environment and pollute the environment, most importantly, the oyster paper has the advantages that the oyster paper is buried in the soil in a waste mode, microorganisms in the soil can be directly induced to be directly biodegraded, and the main components of the oyster shell powder containing the organic calcium carbonate return to the ground after complete degradation to form natural organic compost to further nourish the soil, so that the multiple green environment-friendly sustainable recycling (sustainable) utilization effect of the oyster paper can be achieved.
The invention has the advantages that the paper pulp raw paper substitute material is applied, and the marine waste oyster shell and the natural biodegradation inducer are contained to prepare the paper pulp paper which can replace paper pulp paper and can be naturally degraded after being discarded.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a flow chart of the manufacturing method of the oyster paper according to the present invention;
FIG. 2 is a flow chart of oyster shell powder preparation in the method for manufacturing an oyster paper according to the present invention;
FIG. 3 is a magnified photograph of the surface of the oyster paper of the present invention under an electron microscope;
FIG. 4 is an enlarged cross-sectional photograph of the oyster paper according to the present invention under an electron microscope;
FIG. 5 is a photograph of an environmentally biodegradable representation of an oyster paper product of the present invention;
FIG. 6 is a photograph of an oyster paper product of the present invention biodegraded in an environmental soil over 150 days;
FIG. 7 is a photograph of a real object of the oyster paper product of the present invention biodegraded in an environmental soil over 300 days;
FIG. 8 is a graph of the percent biodegradation rate of the oyster paper product of the present invention;
fig. 9 is a graph of percent carbon dioxide release from biodegradation of oyster paper products of the present invention.
The reference numbers in the figures illustrate:
10 mixing, pre-melting and 20 mixing the materials, and granulating to prepare the oyster paper particles
30 film blowing treatment and 40 oyster paper forming
11 cleaning oyster shell 12 desalting treatment
13 crushing treatment and 14 calcining and sterilizing treatment
15 grinding treatment and 16 screen forming
Detailed Description
The oyster paper is prepared by mixing and pre-melting oyster shell powder 60-70%, polymer 10-20%, natural biodegradation inducer 15-17% and natural biodegradation auxiliary additive 3-5% in volume ratio, mixing and granulating to prepare a plurality of oyster paper particles, and then blowing the oyster paper particles to form an oyster paper finished product with the thickness of 0.05-0.5 mm.
The oyster shell powder is selected from oyster shell powder which is calcined at 600-800 ℃, has 2000 meshes and has the powder particle size of less than 6.5 microns, the polymer is selected from one or the combination of polyethylene and polypropylene, and the polyethylene of the polymer is composed of linear low-density polyethylene, high-density polyethylene, low-density polyethylene and medium-density polyethylene.
The natural biodegradation inducer is selected from chitosan, wherein the chitosan of the natural biodegradation inducer is formed by deacetylation products of chitin, also called soluble chitin, chitin and chitosan, and is a natural biopolymer.
The above-mentioned natural biodegradation auxiliary additive is selected from any one of guar gum, vegetable and fruit ferment or a combination thereof, and the vegetable and fruit ferment of the natural biodegradation auxiliary additive is selected from any one of soybean, okra and pineapple or a combination of at least any two of the soybean, the guar gum and the vegetable and fruit ferment are natural biodegradation agents, which can assist the above-mentioned natural biodegradation inducer to accelerate the speed and efficiency of inducing the soil to be biodegraded by microorganisms.
Referring to fig. 1, a flow chart of a method for manufacturing oyster paper according to the present invention is shown, the method includes steps 10-40, wherein:
(10) mixing and pre-melting materials, namely mixing and pre-melting 60 to 70 percent of oyster shell powder, 10 to 20 percent of polymer, 15 to 17 percent of natural biodegradation inducer and 3 to 5 percent of natural biodegradation auxiliary additive according to the volume ratio respectively;
(20) mixing and granulating to prepare oyster paper particles, putting the mixed and pre-melted material obtained in the step (10) into a plastic internal mixer or a screw mixer, and mixing and granulating at the temperature of 110-150 ℃ to prepare a plurality of oyster paper particles;
(30) performing film blowing treatment, namely performing film blowing treatment on the oyster paper particles prepared in the step (20) by using a plastic single-layer or multi-layer co-extrusion film blowing machine at the temperature of 110-150 ℃; and
(40) and (5) forming the oyster paper, and forming into a finished oyster paper product with the thickness of 0.05-0.5 mm after the film blowing treatment in the step (30).
Referring to fig. 2 again, the step of preparing oyster shell powder in step (10) of the method for manufacturing oyster paper according to the present invention shown in fig. 1 includes steps 11 to 16, wherein:
(11) cleaning oyster shells, and cleaning the surfaces and the interiors of the waste oyster shells;
(12) desalting, namely desalting the oyster shells cleaned in the step (11);
(13) crushing, namely putting the oyster shells subjected to the desalting treatment in the step (12) into a crusher to be crushed into a plurality of oyster shell fragments;
(14) calcining and sterilizing, namely putting the oyster shell fragments formed by crushing in the step (13) into a high-temperature rotary calcining furnace, and calcining and sterilizing at the temperature of 600-800 ℃;
(15) grinding, namely putting the oyster shell fragments subjected to the calcination sterilization treatment in the step (14) into a grinder to be ground into oyster shell particles; and
(16) and (4) forming by a filter screen, namely filtering the oyster shell powder particles formed by grinding in the step (15) by using a screen with the mesh of 2000 meshes to prepare an oyster shell powder finished product with the mesh number of 2000 meshes and the particle size of the powder of less than 6.5 microns.
Referring to fig. 3 and 4, the surface and the cut surface of the oyster paper product obtained through the steps 10 to 40 of the method for manufacturing oyster paper shown in fig. 1 can be seen as a cloud-flake structure according to the photograph of the surface and the cut surface of the oyster paper product actually magnified by one hundred times under an electron microscope, showing that the oyster paper of the present invention has a tougher characteristic than the existing paper products made of pulp, and the applicant also requests the national fudi printing enterprise company limited to use the electronic broke of brilliant No.205-D type in CTTThe split strength machine respectively tests the oyster paper products with the thickness of 0.1 mm and 0.05 mm prepared by the method of the invention and the prior paper pulp made common paper with the thickness of 0.1 mm of the comparison group, so that the oyster paper of the invention can bear 5.88Kg/cm2And 6.11Kg/cm2The breaking strength of (a); the existing common paper made of paper pulp of the contrast group can only bear 2.70Kg/cm2The oyster paper can be cut or bonded with proper size, and can be widely applied to the fields of fast food restaurant paper bags, various shopping paper bags, advertisement and version paper, newspapers, civil and industrial packaging paper bags, envelope paper, printed matters and the like.
In addition, the present invention provides the oyster paper with non-toxic properties, and the applicant also commissions SGS taiwan examination science and technology limited company to perform non-toxic tests on heavy metals such as Cadmium (cadnium, Cd), lead (Plumbum, Pb), mercury (Hydrargyrum, Hg), Hexavalent Chromium (Hexavalent Chromium, Cr6+), Polybrominated biphenyls (PBBs), Polybrominated Diphenyl Ethers (PBDEs), and halogens (Halogen) (test report No. CE/2015/C4552) with non-toxic results, and further commissions the taiwan industry research institute to perform a combustion test of the content of toxic gases of the present invention oyster paper (test report No. 10354C02920-1-1-01), and also proves that the present invention does not generate toxic gases in a combustion state, so that the present invention is used in the actual treatment of oyster paper or waste industrial waste disposal, can not harm human health and environmental air quality.
Referring to fig. 5, 6, 7, 8 and 9, the experiments of field degradation and oyster paper biodegradation conducted by the applicant in accordance with the standards of HJ/T209-2005 and astm d5338-92 by the national plastic quality monitoring and inspection center of china are actually conducted on the oyster paper products of the present invention, wherein, fig. 5, fig. 6 and fig. 7 respectively show the photographs of the oyster paper product of the present invention in the field experiment at the beginning of degradation, degradation on day 150 and degradation on day 300, and fig. 7 shows that after the oyster paper product of the present invention is degraded for 300 days, the oyster paper product of the present invention can achieve a degradation rate of more than 90%, and in addition, the laboratory biodegradation test in fig. 8 shows that, after the oyster paper of the present invention is degraded for 180 days, the degradation rate is as high as 39.9%, which ensures the optimization of soil environment, and as shown in figure 9, the proper amount of carbon dioxide discharge after the degradation reaction of the oyster paper also has a great help to the acceleration of the photosynthesis of the soil planting.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent variations and modifications made to the above embodiment according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.
Claims (20)
1. The oyster paper is characterized in that oyster shell powder accounting for 60-70% of the volume ratio, polymer accounting for 10-20% of the volume ratio, natural biodegradation inducer accounting for 15-17% of the volume ratio and natural biodegradation auxiliary additive accounting for 3-5% of the volume ratio are mixed and pre-melted respectively according to the ratio, then are mixed and granulated to prepare a plurality of oyster paper particles, and then are subjected to film blowing treatment to form an oyster paper finished product with the thickness of 0.05-0.5 mm.
2. The oyster paper according to claim 1, wherein the oyster shell powders are selected from oyster shell powders calcined at 600 ℃ to 800 ℃, having 2000 mesh and having a powder particle size of less than 6.5 μm.
3. The oyster paper according to claim 1, wherein the polymer is selected from one of polyethylene family, polypropylene or a combination thereof.
4. The oyster paper according to claim 3, wherein the polyethylene family of polymers is comprised of linear low density polyethylene, high density polyethylene, low density polyethylene, medium density polyethylene.
5. The oyster paper according to claim 1, wherein the natural biodegradation inducing agent is selected from chitosan.
6. The oyster paper according to claim 5, wherein the chitosan of the natural biodegradation inducing agent is composed of deacetylated products of chitin.
7. The oyster paper according to claim 1, wherein the natural biodegradation assisting additive is selected from any one of guar gum, vegetable and fruit ferment or a combination thereof.
8. The oyster paper according to claim 7, wherein the vegetable and fruit ferment of the natural biodegradation assisting additive is selected from any one of soybean, okra and pineapple or a combination of at least any two of the soybean, okra and pineapple.
9. The manufacturing method of the oyster paper is characterized by comprising the following steps:
(A) mixing and pre-melting materials, namely mixing and pre-melting 60 to 70 percent of oyster shell powder, 10 to 20 percent of polymer, 15 to 17 percent of natural biodegradation inducer and 3 to 5 percent of natural biodegradation auxiliary additive according to the volume ratio respectively;
(B) mixing and granulating to prepare oyster paper particles, mixing and granulating the mixed and pre-melted material obtained in the step (A) at the temperature of 110-150 ℃ to prepare a plurality of oyster paper particles;
(C) performing film blowing treatment, namely performing film blowing treatment on the oyster paper particles prepared in the step (B) at the temperature of 110-150 ℃; and
(D) and (C) forming the oyster paper, and forming into a finished oyster paper product with the thickness of 0.05-0.5 mm after the film blowing treatment in the step (C).
10. The method for manufacturing oyster paper according to claim 9, wherein the oyster shell powder of the step (a) is selected from the group consisting of oyster shell powder calcined at 600 ℃ to 800 ℃, having a mesh size of 2000 mesh and having a powder particle size of less than 6.5 μm.
11. The method for manufacturing oyster paper according to claim 9, wherein the polymer of the step (a) is selected from one of polyethylene group, polypropylene group or combination thereof.
12. The method of manufacturing oyster paper according to claim 11, wherein the polyethylene group of the polymer of the step (a) is composed of linear low density polyethylene, high density polyethylene, low density polyethylene, and medium density polyethylene.
13. The method for manufacturing oyster paper according to claim 9, wherein the natural biodegradation inducing agent of the step (a) is selected from chitosan.
14. The method for manufacturing oyster paper according to claim 13, wherein the chitosan of the natural biodegradation inducing agent of the step (a) is composed of deacetylated products of chitin.
15. The method for manufacturing oyster paper according to claim 9, wherein the natural biodegradation auxiliary additive of the step (a) is selected from any one of guar gum, vegetable and fruit ferment or the combination thereof.
16. The method for manufacturing oyster paper according to claim 15, wherein the vegetable and fruit ferment of the natural biodegradation auxiliary additive of the step (a) is selected from any one of soybean, okra and pineapple or a combination of at least any two of the soybean, the okra and the pineapple.
17. The method for manufacturing oyster paper according to claim 9, wherein the oyster shell powder preparing step of the step (a) comprises:
(A1) cleaning oyster shells, and cleaning the surfaces and the interiors of the waste oyster shells;
(A2) desalting, namely desalting the oyster shells cleaned in the step (A1);
(A3) crushing, namely putting the oyster shells subjected to the desalting treatment in the step (A2) into a crusher to be crushed into a plurality of oyster shell fragments;
(A4) calcining and sterilizing, namely calcining and sterilizing the oyster shell fragments formed by crushing in the step (A3) in a high-temperature rotary calcining furnace at the temperature of 600-800 ℃;
(A5) grinding, namely putting the oyster shell fragments subjected to the calcination sterilization treatment in the step (A4) into a grinder to be ground into oyster shell particles; and
(A6) and (4) filtering and forming, namely filtering the oyster shell powder particles formed by grinding in the step (A5) by using a screen with the mesh of 2000 meshes to obtain the oyster shell powder finished product with the mesh number of 2000 meshes and the powder particle size of less than 6.5 microns.
18. The method for manufacturing oyster paper according to claim 9, wherein the step (B) is performed by mixing and granulating with a plastic internal mixer.
19. The method of manufacturing oyster paper according to claim 9, wherein the kneading and granulating in step (B) are carried out by a screw kneader.
20. The method of claim 9, wherein the step (C) is performed by a plastic single-layer or multi-layer co-extrusion film blowing machine to blow the oyster paper particles.
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| CN201810851085.2A CN110761111A (en) | 2018-07-27 | 2018-07-27 | Oyster paper and its making method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11138728A (en) * | 1997-11-11 | 1999-05-25 | Mishima Paper Co Ltd | Biodegradable bag paper |
| CN1223118A (en) * | 1997-11-10 | 1999-07-21 | 李诚忠 | Process for producing biological active calcium |
| CN1229719A (en) * | 1998-03-25 | 1999-09-29 | 香港商龙盟环保纸(集团)有限公司 | Mfg. method for environmental protective paper |
| US6645584B1 (en) * | 1998-07-07 | 2003-11-11 | Enso Oyj | Compostable coated paper or paperboard, a method for manufacturing the same and products obtained thereof |
| TW201211352A (en) * | 2010-09-02 | 2012-03-16 | Jun-Teng Huang | Manufacturing method of recyclable and reusable stone paper |
-
2018
- 2018-07-27 CN CN201810851085.2A patent/CN110761111A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1223118A (en) * | 1997-11-10 | 1999-07-21 | 李诚忠 | Process for producing biological active calcium |
| JPH11138728A (en) * | 1997-11-11 | 1999-05-25 | Mishima Paper Co Ltd | Biodegradable bag paper |
| CN1229719A (en) * | 1998-03-25 | 1999-09-29 | 香港商龙盟环保纸(集团)有限公司 | Mfg. method for environmental protective paper |
| US6645584B1 (en) * | 1998-07-07 | 2003-11-11 | Enso Oyj | Compostable coated paper or paperboard, a method for manufacturing the same and products obtained thereof |
| TW201211352A (en) * | 2010-09-02 | 2012-03-16 | Jun-Teng Huang | Manufacturing method of recyclable and reusable stone paper |
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