CN113185772A - Special synthetic paper for new crown detection box and manufacturing method thereof - Google Patents
Special synthetic paper for new crown detection box and manufacturing method thereof Download PDFInfo
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- CN113185772A CN113185772A CN202110410217.XA CN202110410217A CN113185772A CN 113185772 A CN113185772 A CN 113185772A CN 202110410217 A CN202110410217 A CN 202110410217A CN 113185772 A CN113185772 A CN 113185772A
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- 238000001514 detection method Methods 0.000 title claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 66
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 54
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 33
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 33
- 239000004743 Polypropylene Substances 0.000 claims abstract description 27
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 27
- -1 polypropylene Polymers 0.000 claims abstract description 27
- 229920001155 polypropylene Polymers 0.000 claims abstract description 27
- 229920002635 polyurethane Polymers 0.000 claims abstract description 27
- 239000004814 polyurethane Substances 0.000 claims abstract description 27
- 229920005989 resin Polymers 0.000 claims abstract description 27
- 239000011347 resin Substances 0.000 claims abstract description 27
- 239000002270 dispersing agent Substances 0.000 claims abstract description 21
- 239000004094 surface-active agent Substances 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims description 45
- 239000000203 mixture Substances 0.000 claims description 28
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 15
- 238000001125 extrusion Methods 0.000 claims description 13
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000003490 calendering Methods 0.000 claims description 5
- 239000000314 lubricant Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 238000010923 batch production Methods 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 abstract description 2
- 241000711573 Coronaviridae Species 0.000 description 9
- 238000001035 drying Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 208000000059 Dyspnea Diseases 0.000 description 2
- 206010013975 Dyspnoeas Diseases 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241001678559 COVID-19 virus Species 0.000 description 1
- 206010011224 Cough Diseases 0.000 description 1
- 206010035664 Pneumonia Diseases 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 208000001647 Renal Insufficiency Diseases 0.000 description 1
- 201000003176 Severe Acute Respiratory Syndrome Diseases 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 201000006370 kidney failure Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Paper (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
The invention discloses special synthetic paper for a new crown detection box, which is prepared from 70-80 parts by mass of polypropylene resin, 2-3 parts by mass of surfactant, 10-15 parts by mass of calcium carbonate, 4-6 parts by mass of dispersant, 10-15 parts by mass of polyurethane and 6-8 parts by mass of silicon dioxide. The synthetic paper manufacturing method adopted by the invention is simple and easy to obtain, and is convenient for large-batch production, the calcium carbonate added in the manufacturing material can save the adding amount of polypropylene resin and polyurethane, the production cost is saved to a certain extent, and the silicon dioxide added in the manufacturing material can enable the synthetic paper to have certain self-cleaning capability, and the toughness of the product is improved to a certain extent.
Description
Technical Field
The invention relates to the technical field of synthetic paper processing, in particular to synthetic paper special for a new crown detection box and a manufacturing method thereof.
Background
Synthetic paper (synthetic paper) is made of chemical raw materials such as olefin and additives, has the advantages of soft texture, strong tensile resistance, high water resistance, light and cold resistance, chemical substance corrosion resistance, no environmental pollution and good air permeability, and is widely used for printing high-grade artworks, maps, paintings and books, high-grade books and periodicals and the like.
2019 the new coronavirus was discovered, 2.11.2020, the international committee on viral classification formally named the new coronavirus as Severe acute respiratory syndrome coronavirus 2, and people infected with the new coronavirus often had symptoms such as dyspnea, fever, cough and breathlessness. In more severe cases, the infection can lead to pneumonia, severe acute respiratory syndrome, renal failure, and even death.
The existing new coronavirus detection box has accurate detection test paper which can detect the existing coronavirus in the detection process, the test paper is small in size, a special containing box is required to contain the existing coronavirus, most of the existing containing box does not have the function of blocking impurities and foreign solutions, and once the existing coronavirus is polluted, the test paper in the existing coronavirus is extremely easy to pollute, so that the detection accuracy of the new coronavirus is influenced.
Disclosure of Invention
The invention aims to provide special synthetic paper for a new crown detection box and a manufacturing method thereof, and aims to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the synthetic paper special for the new crown detection box is made of, by mass, 70-80 parts of polypropylene resin, 2-3 parts of surfactant, 10-15 parts of calcium carbonate, 4-6 parts of dispersant, 10-15 parts of polyurethane and 6-8 parts of silicon dioxide.
Further, the manufacturing method of the special synthetic paper for the new crown detection box comprises the following steps:
the method comprises the following steps: firstly, weighing the polypropylene resin, the surfactant, the calcium carbonate, the dispersant, the polyurethane and the silicon dioxide in corresponding parts by weight for later use;
step two: mixing and granulating the polypropylene resin, the calcium carbonate and the polyurethane weighed in the step one at a high temperature of 190-210 ℃, continuously stirring and mixing the polypropylene resin, the calcium carbonate and the polyurethane in the heating process at a stirring speed of 20-30r/min, adding 1-2 parts of a lubricant into the mixture, keeping the heating time for 20-30min, and enabling the mixture of the polypropylene resin, the calcium carbonate and the polyurethane to be in a viscous flowing state, and then extruding and cooling the mixture to obtain a manufactured master batch;
step three: placing the manufactured master batch obtained in the step into an extrusion interior, placing the rest surfactant, dispersant and silicon dioxide into an extruder for mixing, then heating the mixture, setting the heating temperature to be 120-130 ℃, and extruding the mixture through an extrusion port;
step four: performing calendering treatment on the synthetic paper extruded in the step three, then stretching the synthetic paper, cooling the synthetic paper by a cooling roller, and cooling and forming the synthetic paper;
step five: and then the special synthetic paper for the new crown detection box is obtained through traction, corona and rolling.
Furthermore, the synthetic paper manufacturing material special for the new crown detection box comprises, by mass, 75 parts of polypropylene resin, 2.5 parts of a surfactant, 3 parts of calcium carbonate, 5 parts of a dispersant, 13 parts of polyurethane and 7 parts of silicon dioxide.
Furthermore, the cooling roller adopts water cooling, and the temperature of the cooling roller is set to be 20-25 ℃.
Further, the silicon dioxide needs to be crushed before use, and is screened out through a screen mesh, and the particle size of the crushed silicon dioxide is 20-40 um.
Further, before the synthetic paper is cooled by a cooling roller, a layer of ethanol solution needs to be coated on the surface of the synthetic paper, and after the synthetic paper is cooled by the cooling roller, the synthetic paper is cooled and air-dried by a fan, so that evaporation and drying of the coated ethanol are guaranteed before rolling.
Further, the special synthetic paper for the new crown detection box needs to be placed in a dry and sealed environment for storage in the storage process.
The synthetic paper manufacturing method adopted by the invention is simple and easy to obtain, and is convenient for large-batch production, the calcium carbonate added in the manufacturing material can save the adding amount of polypropylene resin and polyurethane, the production cost is saved to a certain extent, and the silicon dioxide added in the manufacturing material can enable the synthetic paper to have certain self-cleaning capability, and the toughness of the product is improved to a certain extent.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
The first embodiment is as follows:
the special synthetic paper for the new crown detection box is made of, by mass, 70 parts of polypropylene resin, 2 parts of surfactant, 10 parts of calcium carbonate, 4 parts of dispersant, 10 parts of polyurethane and 6 parts of silicon dioxide.
Further, the manufacturing method of the special synthetic paper for the new crown detection box comprises the following steps:
the method comprises the following steps: firstly, weighing the polypropylene resin, the surfactant, the calcium carbonate, the dispersant, the polyurethane and the silicon dioxide in corresponding parts by weight for later use;
step two: mixing and granulating the polypropylene resin, the calcium carbonate and the polyurethane weighed in the step one at a high temperature of 190 ℃, continuously stirring and mixing the mixture in a heating process at a stirring speed of 20r/min, adding 1 part of lubricant into the mixture, keeping the heating time for 20min, enabling the mixture of the two to be in a viscous flowing state, and then extruding and cooling the mixture to obtain the manufactured master batch;
step three: placing the manufactured master batch obtained in the step into an extrusion machine, placing the rest surfactant, dispersant and silicon dioxide into the extrusion machine for mixing, then heating the mixture, setting the heating temperature to be 120 ℃, and extruding the mixture through an extrusion port;
step four: performing calendering treatment on the synthetic paper extruded in the step three, then stretching the synthetic paper, cooling the synthetic paper by a cooling roller, and cooling and forming the synthetic paper;
step five: and then the special synthetic paper for the new crown detection box is obtained through traction, corona and rolling.
Furthermore, the synthetic paper manufacturing material special for the new crown detection box comprises, by mass, 75 parts of polypropylene resin, 2.5 parts of a surfactant, 3 parts of calcium carbonate, 5 parts of a dispersant, 13 parts of polyurethane and 7 parts of silicon dioxide.
Furthermore, the cooling roller adopts water cooling, and the temperature of the cooling roller is set to be 20 ℃.
Further, the silicon dioxide needs to be crushed before use, and is screened out through a screen mesh, and the particle size of the crushed silicon dioxide is 20 um.
Further, before the synthetic paper is cooled by a cooling roller, a layer of ethanol solution needs to be coated on the surface of the synthetic paper, and after the synthetic paper is cooled by the cooling roller, the synthetic paper is cooled and air-dried by a fan, so that evaporation and drying of the coated ethanol are guaranteed before rolling.
Further, the special synthetic paper for the new crown detection box needs to be placed in a dry and sealed environment for storage in the storage process.
Example two:
the synthetic paper special for the new crown detection box is made of 80 parts by mass of polypropylene resin, 3 parts by mass of surfactant, 15 parts by mass of calcium carbonate, 6 parts by mass of dispersant, 15 parts by mass of polyurethane and 8 parts by mass of silicon dioxide.
Further, the manufacturing method of the special synthetic paper for the new crown detection box comprises the following steps:
the method comprises the following steps: firstly, weighing the polypropylene resin, the surfactant, the calcium carbonate, the dispersant, the polyurethane and the silicon dioxide in corresponding parts by weight for later use;
step two: mixing and granulating the polypropylene resin, the calcium carbonate and the polyurethane weighed in the step one at a high temperature of 210 ℃, continuously stirring and mixing the mixture in a heating process at a stirring speed of 30r/min, adding 2 parts of a lubricant into the mixture, keeping the heating time for 30min, enabling the mixture of the two to be in a viscous flowing state, and then extruding and cooling the mixture to obtain the manufactured master batch;
step three: placing the manufactured master batch obtained in the step into an extrusion machine, placing the rest surfactant, dispersant and silicon dioxide into the extrusion machine for mixing, then heating the mixture, setting the heating temperature to be 130 ℃, and extruding the mixture through an extrusion port;
step four: performing calendering treatment on the synthetic paper extruded in the step three, then stretching the synthetic paper, cooling the synthetic paper by a cooling roller, and cooling and forming the synthetic paper;
step five: and then the special synthetic paper for the new crown detection box is obtained through traction, corona and rolling.
Furthermore, the synthetic paper manufacturing material special for the new crown detection box comprises, by mass, 75 parts of polypropylene resin, 2.5 parts of a surfactant, 3 parts of calcium carbonate, 5 parts of a dispersant, 13 parts of polyurethane and 7 parts of silicon dioxide.
Furthermore, the cooling roller adopts water cooling, and the cooling roller temperature sets up to 25 ℃.
Further, the silicon dioxide needs to be crushed before use, and is screened out through a screen mesh, and the particle size of the crushed silicon dioxide is 40 um.
Further, before the synthetic paper is cooled by a cooling roller, a layer of ethanol solution needs to be coated on the surface of the synthetic paper, and after the synthetic paper is cooled by the cooling roller, the synthetic paper is cooled and air-dried by a fan, so that evaporation and drying of the coated ethanol are guaranteed before rolling.
Further, the special synthetic paper for the new crown detection box needs to be placed in a dry and sealed environment for storage in the storage process.
Example three:
the synthetic paper special for the new crown detection box is made of 75 parts by mass of polypropylene resin, 2.5 parts by mass of surfactant, 3 parts by mass of calcium carbonate, 5 parts by mass of dispersant, 13 parts by mass of polyurethane and 7 parts by mass of silicon dioxide.
Further, the manufacturing method of the special synthetic paper for the new crown detection box comprises the following steps:
the method comprises the following steps: firstly, weighing the polypropylene resin, the surfactant, the calcium carbonate, the dispersant, the polyurethane and the silicon dioxide in corresponding parts by weight for later use;
step two: mixing and granulating the polypropylene resin, the calcium carbonate and the polyurethane weighed in the step one at a high temperature of 200 ℃, continuously stirring and mixing the mixture in a heating process at a stirring speed of 25r/min, adding 1.5 parts of a lubricant into the mixture, keeping the heating time for 25min, enabling the mixture of the two to be in a viscous flowing state, and then extruding and cooling the mixture to obtain the manufactured master batch;
step three: placing the manufactured master batch obtained in the step into an extrusion machine, placing the rest surfactant, dispersant and silicon dioxide into the extrusion machine for mixing, then heating the mixture, setting the heating temperature to be 125 ℃, and extruding the mixture through an extrusion port;
step four: performing calendering treatment on the synthetic paper extruded in the step three, then stretching the synthetic paper, cooling the synthetic paper by a cooling roller, and cooling and forming the synthetic paper;
step five: and then the special synthetic paper for the new crown detection box is obtained through traction, corona and rolling.
Furthermore, the synthetic paper manufacturing material special for the new crown detection box comprises, by mass, 75 parts of polypropylene resin, 2.5 parts of a surfactant, 3 parts of calcium carbonate, 5 parts of a dispersant, 13 parts of polyurethane and 7 parts of silicon dioxide.
Furthermore, the cooling roller adopts water cooling, and the temperature of the cooling roller is set to 23 ℃.
Further, the silicon dioxide needs to be crushed before use, and is screened out through a screen mesh, and the particle size of the crushed silicon dioxide is 30 um.
Further, before the synthetic paper is cooled by a cooling roller, a layer of ethanol solution needs to be coated on the surface of the synthetic paper, and after the synthetic paper is cooled by the cooling roller, the synthetic paper is cooled and air-dried by a fan, so that evaporation and drying of the coated ethanol are guaranteed before rolling.
Further, the special synthetic paper for the new crown detection box needs to be placed in a dry and sealed environment for storage in the storage process.
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 (7)
1. The special synthetic paper for the new crown detection box is characterized in that: the manufacturing material of the synthetic paper special for the new crown detection box comprises, by mass, 70-80 parts of polypropylene resin, 2-3 parts of surfactant, 10-15 parts of calcium carbonate, 4-6 parts of dispersant, 10-15 parts of polyurethane and 6-8 parts of silicon dioxide.
2. A method for manufacturing the synthetic paper special for the new crown detection box according to claim 1, which is characterized in that: the manufacturing method of the special synthetic paper for the new crown detection box comprises the following steps:
the method comprises the following steps: firstly, weighing the polypropylene resin, the surfactant, the calcium carbonate, the dispersant, the polyurethane and the silicon dioxide in corresponding parts by weight for later use;
step two: mixing and granulating the polypropylene resin, the calcium carbonate and the polyurethane weighed in the step one at a high temperature of 190-210 ℃, continuously stirring and mixing the polypropylene resin, the calcium carbonate and the polyurethane in the heating process at a stirring speed of 20-30r/min, adding 1-2 parts of a lubricant into the mixture, keeping the heating time for 20-30min, and enabling the mixture of the polypropylene resin, the calcium carbonate and the polyurethane to be in a viscous flowing state, and then extruding and cooling the mixture to obtain a manufactured master batch;
step three: placing the manufactured master batch obtained in the step into an extrusion interior, placing the rest surfactant, dispersant and silicon dioxide into an extruder for mixing, then heating the mixture, setting the heating temperature to be 120-130 ℃, and extruding the mixture through an extrusion port;
step four: performing calendering treatment on the synthetic paper extruded in the step three, then stretching the synthetic paper, cooling the synthetic paper by a cooling roller, and cooling and forming the synthetic paper;
step five: and then the special synthetic paper for the new crown detection box is obtained through traction, corona and rolling.
3. The synthetic paper special for the new crown detection box according to claim 1, wherein the synthetic paper comprises: the special synthetic paper for the new crown detection box is prepared from 75 parts by mass of polypropylene resin, 2.5 parts by mass of surfactant, 3 parts by mass of calcium carbonate, 5 parts by mass of dispersant, 13 parts by mass of polyurethane and 7 parts by mass of silicon dioxide.
4. The method for manufacturing the synthetic paper special for the new crown detection box according to claim 2, wherein the method comprises the following steps: the cooling roller is cooled by water cooling, and the temperature of the cooling roller is set to be 20-25 ℃.
5. The method for manufacturing the synthetic paper special for the new crown detection box according to claim 2, wherein the method comprises the following steps: the silicon dioxide is required to be crushed before use, and is screened out through a screen mesh, and the particle size of the crushed silicon dioxide is 20-40 um.
6. The method for manufacturing the synthetic paper special for the new crown detection box according to claim 2, wherein the method comprises the following steps: the surface of the synthetic paper is coated with a layer of ethanol solution before the synthetic paper is cooled by a cooling roller, and the synthetic paper is cooled and air-dried by a fan after being cooled by the cooling roller, so that the coated ethanol is ensured to be evaporated and dried before being rolled.
7. The synthetic paper special for the new crown detection box according to claim 1, wherein the synthetic paper comprises: the special synthetic paper for the new crown detection box needs to be placed in a dry and sealed environment for storage in the storage process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110410217.XA CN113185772A (en) | 2021-04-16 | 2021-04-16 | Special synthetic paper for new crown detection box and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110410217.XA CN113185772A (en) | 2021-04-16 | 2021-04-16 | Special synthetic paper for new crown detection box and manufacturing method thereof |
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|---|---|
| CN113185772A true CN113185772A (en) | 2021-07-30 |
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| CN202110410217.XA Pending CN113185772A (en) | 2021-04-16 | 2021-04-16 | Special synthetic paper for new crown detection box and manufacturing method thereof |
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-
2021
- 2021-04-16 CN CN202110410217.XA patent/CN113185772A/en active Pending
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| CN1415656A (en) * | 2002-10-16 | 2003-05-07 | 广东华业包装材料有限公司 | Synthetic paper capable of being coated and preparation process thereof |
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Application publication date: 20210730 |