CN113549257B - Developable traceable one-dimensional password material and preparation method and application thereof - Google Patents
Developable traceable one-dimensional password material and preparation method and application thereof Download PDFInfo
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- CN113549257B CN113549257B CN202110950862.0A CN202110950862A CN113549257B CN 113549257 B CN113549257 B CN 113549257B CN 202110950862 A CN202110950862 A CN 202110950862A CN 113549257 B CN113549257 B CN 113549257B
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- 239000000463 material Substances 0.000 title claims abstract description 54
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Inorganic materials [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 118
- 239000002131 composite material Substances 0.000 claims abstract description 58
- 229920000642 polymer Polymers 0.000 claims abstract description 36
- 238000007639 printing Methods 0.000 claims description 25
- -1 polyethylene Polymers 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 7
- 229920001155 polypropylene Polymers 0.000 claims description 7
- 238000010146 3D printing Methods 0.000 claims description 6
- 238000004659 sterilization and disinfection Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 230000001954 sterilising effect Effects 0.000 claims description 5
- 238000009966 trimming Methods 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 229920002943 EPDM rubber Polymers 0.000 claims description 2
- 239000004677 Nylon Substances 0.000 claims description 2
- 238000005469 granulation Methods 0.000 claims description 2
- 230000003179 granulation Effects 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 2
- 229920001610 polycaprolactone Polymers 0.000 claims description 2
- 239000004632 polycaprolactone Substances 0.000 claims description 2
- 239000004626 polylactic acid Substances 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 2
- 238000009941 weaving Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 3
- 229920002292 Nylon 6 Polymers 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000001124 body fluid Anatomy 0.000 description 2
- 239000010839 body fluid Substances 0.000 description 2
- 238000009740 moulding (composite fabrication) Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000023597 hemostasis Effects 0.000 description 1
- 230000002439 hemostatic effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
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- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/18—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing inorganic materials
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/14—Printing or colouring
- B32B38/145—Printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
- B33Y70/10—Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
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- 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
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Abstract
The invention relates to the technical field of X-ray developing materials, in particular to a developable traceable one-dimensional cipher material and a preparation method and application thereof, wherein the developable traceable one-dimensional cipher material comprises a sandwich structure with a polymer layer-barium sulfate composite developing layer-polymer layer, the information coding principle of the developable traceable one-dimensional cipher material is to realize information coding according to the dynamic arrangement combination of barium sulfate composite developing wires in the barium sulfate composite developing layer, and the key coding parameters comprise: the width of the barium sulfate composite developing wire, the length of the undeveloped part and the length of the developed part. According to the invention, through the arrangement and combination of the composite materials of the developing layer, the developing material has information coding and storage capacity, the prepared developing traceable one-dimensional password material is woven into medical consumables such as gauze, and the gauze remained in a body can be easily found by X-ray detection equipment after operation, so that medical disputes are reduced.
Description
Technical Field
The invention relates to the technical field of X-ray developing materials, in particular to a developable traceable one-dimensional password material and a preparation method and application thereof.
Background
Medical gauze, hemostatic gauze, blood-sucking towel, etc. are used in surgical operations for hemostasis, blood or body fluid absorption, or for protecting human tissues. During the use process, the gauze is soaked in body fluid or blood, and shows a color similar to that of a tissue structure, so that the gauze is extremely difficult to find and is left in a human body. The wound is difficult to detect after closure unless the wound is reopened. If the gauze left in the human body cannot be checked and cleaned in time, the condition of the patient can be aggravated, and the patient can die in serious cases. By implanting X-ray developing materials into the gauze, the gauze remained in the body can be easily found by utilizing X-ray detection equipment after operation, thereby avoiding serious medical accidents and relieving the pain of patients.
Nevertheless, similar medical accidents still occur at times. Once a medical accident occurs, the source of the left-over object cannot be traced, the responsibility subject is difficult to determine, doctor-patient disputes are caused, and the difficulty of maintaining the right of the patient is increased. However, the materials that can be used for developing medical gauze currently only have a developing function, and cannot encode and store other information used in hospitals, departments, and the like. Therefore, the medical gauze with the information code needs to be developed, and the tracing of the medical gauze from the production to the whole use process is realized.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a developable traceable one-dimensional password material, a preparation method and application thereof.
In order to achieve the purpose, the invention adopts the following technical scheme: a developable traceable one-dimensional password material comprises a sandwich structure with a polymer layer, a barium sulfate composite development layer and a polymer layer, wherein the information coding principle of the developable traceable one-dimensional password material is to realize information coding according to the dynamic arrangement and combination of barium sulfate composite development wires in the barium sulfate composite development layer, and key coding parameters comprise: the width of the barium sulfate composite developing wire, the length of the undeveloped part and the length of the developed part.
Preferably, the width of the developable traceable one-dimensional password material is 0.4-2.7mm, the thickness of the polymer layers on the two sides is 0.05mm, the thickness of the middle barium sulfate composite development layer is 0.2mm, and the total thickness of the developable traceable one-dimensional password material is 0.3 mm.
Preferably, the barium sulfate composite developing layer is composed of a polymer/barium sulfate composite material, a matrix of the polymer/barium sulfate composite material is the same as that of the polymer layer, and the barium sulfate composite developing layer is 15-40% by mass of barium sulfate.
Preferably, the polymer layer is a medical grade polymer, and the medical grade polymer comprises medical grade polyethylene, medical grade polypropylene, medical grade nylon, medical grade thermoplastic elastomer, medical grade ethylene propylene diene monomer, medical grade polylactic acid and medical grade polycaprolactone.
The invention also provides a preparation method of the developable traceable one-dimensional password material, which comprises the following steps:
step one, barium sulfate and a medical grade polymer are mixed according to the weight ratio (15-40): (85-60) uniformly mixing, blending and extruding by a double-screw extruder, and preparing the barium sulfate composite material by traction, cooling and granulation, wherein the extrusion temperature is determined according to the selected polymer;
extruding the medical grade polymer and the barium sulfate composite material prepared in the step one through a single-screw extruder, and preparing a polymer 3D printing wire through traction, cooling and shaping and winding, wherein the extrusion temperature is determined according to the selected polymer;
and step three, respectively loading the medical-grade polymer printing wire and the barium sulfate composite material printing wire into a 3D printer, and performing composite printing molding, cooling, trimming and rolling to obtain the developable traceable one-dimensional password material with the barium sulfate composite developing wire as the identification.
Preferably, in the first step, the particle size of barium sulfate is 50 nanometers to 5 micrometers; the diameter of the polymer 3D printing wire prepared in the second step is 0.4-2.7mm, and the diameter of the barium sulfate composite material printing wire is 0.2-2.5 mm.
Preferably, in the developable traceable one-dimensional password material prepared in the third step, the width of the barium sulfate composite developing wire is 0.2-2.5mm, the length of the undeveloped part of the barium sulfate composite developing wire is 1-30mm, and the length of the developed part of the barium sulfate composite developing wire is 1-50 mm.
Preferably, in the third step, the 3D printer includes 3 print heads, which are closely arranged in a straight line along the direction of the material collecting movement, wherein the print heads on both sides are loaded with polymer print filaments, the print head in the middle is loaded with barium sulfate composite print filaments, and the control and construction of the specific arrangement of the development filaments in the barium sulfate composite development layer are realized by dynamically adjusting the filament feeding time, the interval time and the diameter of the print filaments of the middle die head.
The invention also provides application of the developable traceable one-dimensional password material in preparation of medical gauze, the developable traceable one-dimensional password material is implanted into the medical gauze through spinning to prepare the developable traceable gauze, and information such as manufacturers and using units of the traceable medical gauze is utilized by an X-ray machine.
Preferably, the developable traceable gauze is sterilized at high temperature and high pressure according to different developable traceable one-dimensional password materials,60Co irradiation sterilization or electron accelerator irradiation sterilization.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, on the traditional one-dimensional developing material, the developing material has information coding and storing capabilities through the arrangement and combination of the developing layer composite materials.
2. The prepared developable traceable one-dimensional password material is woven into medical consumables such as gauze, on one hand, the gauze remained in the body can be easily found by X-ray detection equipment after operation; on the other hand, if serious medical accidents are caused by the fact that gauze remains in the body after operation, the gauze use information can be inquired through X-ray development of the gauze, so that units and departments involved in the gauze use process can be traced, the responsibility main body of the medical accidents is determined, and medical disputes are reduced.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below so that those skilled in the art can better understand the advantages and features of the present invention, and thus the scope of the present invention will be more clearly defined. The embodiments described herein are only a few embodiments of the present invention, rather than all embodiments, and all other embodiments that can be derived by one of ordinary skill in the art without inventive faculty based on the embodiments described herein are intended to fall within the scope of the present invention.
A developable traceable one-dimensional password material comprises a sandwich structure with a polymer layer, a barium sulfate composite developing layer and a polymer layer, the information coding principle of the developable traceable one-dimensional password material is to realize information coding according to the dynamic arrangement combination of barium sulfate composite developing wires in the barium sulfate composite developing layer, and the key coding parameters comprise: the width of the barium sulfate composite developing wire, the length of the undeveloped part and the length of the developed part.
Examples of developable traceable one-dimensional cryptographic material information encoding are as follows:
example 1:
the method comprises the following steps: uniformly mixing barium sulfate with the average particle size of 200 nanometers and medical-grade polyethylene according to the mass ratio of 20:80, blending and extruding by using a double-screw extruder at the extrusion temperature of 140-;
step two: and (3) respectively extruding medical-grade polyethylene and the polyethylene/barium sulfate composite material prepared in the step one through a single-screw extruder to prepare the 3D printing wire, wherein the extrusion temperature is 140-.
Step three: respectively loading a polyethylene printing wire and a polyethylene/barium sulfate composite material printing wire into a 3D printer, selecting printing heads with die openings of 0.8mm and 0.5mm and corresponding wire feeders, wherein the wire feeding speed is 2mm/s, adjusting the speed of the middle wire feeder to be 10s pause for 2s, setting the temperature of the printing heads to be 190 ℃, continuously performing composite printing and forming, trimming and winding to obtain the developable traceable one-dimensional password material, wherein the developing part is a non-continuous developing wire with the developing length of 20mm, the non-developing length of 4mm and the developing width of 0.5 mm.
The developable traceable one-dimensional code material is coded into medical gauze and then the medical gauze is processed60Co ray sterilization is carried out to obtain the developable traceable medical gauze, and the coding information of the gauze is as follows: f-20-4-0.5.
Example 2:
the method comprises the following steps: uniformly mixing barium sulfate powder with the average particle size of 1 micron and medical-grade nylon 6 according to the mass ratio of 40:60, uniformly mixing, then blending and extruding by using a double-screw extruder, wherein the temperature of the extruder is 160-250 ℃, and then drawing, cooling and granulating to obtain a nylon 6/barium sulfate composite material;
step two: and (3) respectively extruding the medical grade nylon 6 and the nylon 6/barium sulfate composite material prepared in the step one through a single-screw extruder to prepare the 3D printing wire, wherein the temperature of the extruder is 220-.
Step three: respectively loading the nylon 6 printing wire and the nylon 6/barium sulfate composite material printing wire into a 3D printer, selecting printing heads with die openings of 3.0mm and 2.0mm and corresponding wire feeders, wherein the wire feeding speed is 2mm/s, the temperature of the printing heads is set to be 270 ℃, adjusting the speed of the middle wire feeder to be 5s pause for 1s, and carrying out continuous composite printing molding, trimming and rolling to obtain the developable traceable one-dimensional password material. The developing part is a non-continuous developing wire with a developing length of 10mm, a non-developing length of 2mm and a developing width of 2.0 mm.
The developable traceability one-dimensional code material is coded into medical gauze, and the developable traceability medical gauze is obtained through high-temperature and high-pressure disinfection, wherein the code information of the gauze is as follows: f-10-2-2.0.
Example 3:
the method comprises the following steps: uniformly mixing barium sulfate with the average particle size of 50 nanometers and medical-grade polypropylene according to the mass ratio of 15:85, blending and extruding by using a double-screw extruder after uniform mixing, setting the temperature of the extruder at 140-;
step two: and (3) respectively extruding the medical-grade polypropylene and the polypropylene/barium sulfate composite material prepared in the step one through a single-screw extruder to prepare the 3D printing wire, wherein the temperature of the extruder is set to 180-.
Step three: respectively loading a polypropylene printing wire and a polypropylene/barium sulfate composite material printing wire into a 3D printer, selecting printing heads with the diameters of 0.4mm and 0.2mm and corresponding wire feeders, wherein the wire feeding speed is 2mm/s, the temperature of the printing heads is set to be 220 ℃, adjusting the speed of the middle wire feeder to be 20s interval and pause for 0.5s, continuously performing composite printing and forming, trimming and winding to obtain the developable traceable one-dimensional password material, wherein the developing part is a non-continuous developing wire with the developing length of 40mm, the non-developing length of 1mm and the developing width of 0.2 mm.
The developable traceability one-dimensional code material is coded into medical gauze, and is irradiated and disinfected by an electron accelerator to obtain the developable traceability medical gauze, wherein the information code of the gauze is as follows: f-40-1-0.2.
TABLE 1
The description and practice of the disclosure herein will be readily apparent to those skilled in the art from consideration of the specification and understanding, and may be modified and modified without departing from the principles of the disclosure. Therefore, modifications or improvements made without departing from the spirit of the invention should also be considered as the protection scope of the invention.
Claims (10)
1. The developable traceable one-dimensional password material is characterized by comprising a sandwich structure with a polymer layer, a barium sulfate composite developing layer and a polymer layer, wherein the information coding principle of the developable traceable one-dimensional password material is to realize information coding according to the dynamic arrangement and combination of barium sulfate composite developing wires in the barium sulfate composite developing layer, and key coding parameters comprise: the width of the barium sulfate composite developing wire, the length of the undeveloped part and the length of the developed part.
2. The developable traceable one-dimensional password material according to claim 1, wherein the width of the developable traceable one-dimensional password material is 0.4-2.7mm, the thickness of the polymer layers on the two sides is 0.05mm, the thickness of the barium sulfate composite developing layer in the middle is 0.2mm, and the total thickness of the developable traceable one-dimensional password material is 0.3 mm.
3. The developable traceable one-dimensional password material according to claim 1, wherein the barium sulfate composite developing layer is composed of a polymer/barium sulfate composite material, the matrix of the polymer/barium sulfate composite material is the same as that of the polymer layer, and the barium sulfate composite developing layer has a mass percentage of 15-40% of barium sulfate.
4. The developable traceable one-dimensional password material according to claim 1, wherein the polymer layer is a medical grade polymer, and the medical grade polymer comprises medical grade polyethylene, medical grade polypropylene, medical grade nylon, medical grade thermoplastic elastomer, medical grade ethylene propylene diene monomer, medical grade polylactic acid and medical grade polycaprolactone.
5. The method for preparing the developable traceable one-dimensional cryptographic material according to any one of claims 1 to 4, comprising the following steps:
step one, barium sulfate and a medical grade polymer are mixed according to the weight ratio (15-40): (85-60), mixing uniformly, co-blending and extruding by a double-screw extruder, and preparing the barium sulfate composite material by traction, cooling and granulation;
extruding the medical-grade polymer and the barium sulfate composite material prepared in the step one through a single-screw extruder, and preparing a medical-grade polymer/barium sulfate composite material printing wire through traction, cooling and shaping and winding;
and step three, respectively loading the medical-grade polymer printing wire and the medical-grade polymer/barium sulfate composite material printing wire into a 3D printer, and performing composite printing molding, cooling, trimming and rolling to obtain the developable traceable one-dimensional password material with the barium sulfate composite developing wire as the identifier.
6. The method for preparing the developable traceable one-dimensional cipher material according to claim 5, wherein in the first step, the particle size of barium sulfate is 50 nanometers to 5 micrometers; the diameter of the polymer 3D printing wire prepared in the second step is 0.4-2.7mm, and the diameter of the barium sulfate composite material printing wire is 0.2-2.5 mm.
7. The method for preparing the developable tracing one-dimensional code material according to claim 5, wherein the developable tracing one-dimensional code material prepared in the third step has a width of 0.2-2.5mm, a length of a non-developable part of the barium sulfate composite developing wire of 1-30mm, and a length of a developable part of the barium sulfate composite developing wire of 1-50 mm.
8. The method for preparing the developable traceable one-dimensional password material according to claim 5, wherein in the third step, the 3D printer comprises 3 printing heads which are closely arranged in a straight line along the collection movement direction of the material.
9. The use of the developable tracing one-dimensional code material according to any one of claims 1 to 4 in the preparation of medical gauze, characterized in that the developable tracing one-dimensional code material is implanted into the medical gauze through weaving to prepare the developable tracing gauze.
10. The use of the developable traceable one-dimensional code material in the preparation of medical gauze according to claim 9, wherein the developable traceable gauze is sterilized at high temperature and high pressure according to the characteristics of the developable traceable one-dimensional code material,60Co irradiation sterilization or electron accelerator irradiation sterilization。
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| CN205019264U (en) * | 2015-09-15 | 2016-02-10 | 稳健医疗用品股份有限公司 | Identification code label gauze and check out test set thereof |
| CN110522954B (en) * | 2019-09-17 | 2021-12-10 | 南通大学 | Barium sulfate-containing developable composite biological patch and preparation method thereof |
| CN111979599A (en) * | 2020-08-06 | 2020-11-24 | 南通大学 | Preparation method of barium-containing developable functional polypropylene fiber |
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Application publication date: 20211026 Assignee: NANTONG EGENS BIOTECHNOLOGY Co.,Ltd. Assignor: NANTONG University Contract record no.: X2023980046726 Denomination of invention: A One Dimensional Cryptographic Material with Developmental Traceability and Its Preparation Method and Application Granted publication date: 20220412 License type: Common License Record date: 20231114 |
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