CN109822980B - Dialysate bag and preparation method thereof - Google Patents
Dialysate bag and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a dialysate bag and a preparation method thereof, wherein the dialysate bag comprises an inner layer and an outer layer, and the inner layer comprises the following raw materials in parts by weight: 100-120 parts of high-polymerization-degree polyvinyl chloride, 50-70 parts of EVA (ethylene vinyl acetate), 5-10 parts of nano-silver antibacterial agent, 3-5 parts of dioctyl sebacate, 5-15 parts of antioxidant, 1-20 parts of plasticizer and 0.5-1.5 parts of heat stabilizer, wherein the outer layer comprises the following raw materials in parts by weight: 50-80 parts of polytetrafluoroethylene, 80-100 parts of modified polypropylene and 0.5-1.5 parts of heat stabilizer. The dialysate bag provided by the invention has the advantages of impact resistance, high temperature resistance, low temperature resistance, high stability, better protection on dialysate, reduction of the probability of deterioration of medicines, increase of the quality guarantee period of the medicines and guarantee of the medication safety of patients.
Description
Technical Field
The invention relates to the technical field of dialysis bags, in particular to a dialysate bag and a preparation method thereof.
Background
Dialysis (dialysis) is a separation and purification technique that separates small molecules from biological macromolecules by the principle of diffusion of small molecules through a semi-permeable membrane into water (or buffer).
Dialysis therapy is a treatment method in which components (solute or moisture) in body fluid are discharged to the outside of the body through a semipermeable membrane, and is generally classified into hemodialysis and peritoneal dialysis, and during peritoneal dialysis, it is necessary to sterilize the medicinal liquid in a dialysis bag with steam.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a dialysate bag and a preparation method thereof.
The dialysate bag comprises an inner layer and an outer layer, wherein the inner layer comprises the following raw materials in parts by weight: 100-120 parts of high-polymerization-degree polyvinyl chloride, 50-70 parts of EVA (ethylene vinyl acetate), 5-10 parts of nano-silver antibacterial agent, 3-5 parts of dioctyl sebacate, 5-15 parts of antioxidant, 1-20 parts of plasticizer and 0.5-1.5 parts of heat stabilizer, wherein the outer layer comprises the following raw materials in parts by weight: 50-80 parts of polytetrafluoroethylene, 80-100 parts of modified polypropylene and 0.5-1.5 parts of heat stabilizer.
Preferably, the nano silver antibacterial agent in the inner layer is nano silver powder taking inorganic superfine powder as a carrier, and the inorganic superfine powder is a mixture of anatase type nano titanium dioxide, nano silicon dioxide and zeolite.
Preferably, the polyvinyl chloride with high polymerization degree in the inner layer is a resin with high polymerization degree, and the average polymerization degree is more than 1500.
Preferably, the melt flow index of the modified polypropylene (PP) in the outer layer is 10-20 g/10min under the conditions of 230 ℃ and 2.16kPa, the melting point is 150-170 ℃, and the density is 0.87-0.91 g/cm 3.
Preferably, the outer layer further comprises the following raw materials in parts by weight: 0.5-1 part of ultraviolet resistant agent, wherein the ultraviolet resistant agent is 2-hydroxy-4-n-octoxy benzophenone.
Preferably, a silk screen layer is arranged between the outer layer and the inner layer.
Preferably, the silk screen layer is a metal screen layer or a plastic screen layer.
A method of making a dialysate bag comprising the steps of:
s1, preparing materials: the inner layer material is prepared by weighing the raw materials of all components according to the parts by weight, wherein the raw materials comprise 120 parts of high-polymerization-degree polyvinyl chloride 100-one, 50-70 parts of EVA, 5-10 parts of nano-silver antibacterial agent, 3-5 parts of dioctyl sebacate, 5-15 parts of antioxidant, 1-20 parts of plasticizer and 0.5-1.5 parts of heat stabilizer;
weighing raw materials of each component according to the weight part ratio, wherein the raw materials comprise 50-80 parts of polytetrafluoroethylene, 80-100 parts of modified polypropylene and 0.5-1.5 parts of heat stabilizer;
s2, preparing the inner and outer layers:
the preparation method of the inner layer comprises the following steps: adding the inner layer raw materials into a container according to S1, mixing, fully mixing to obtain a premix, putting the premix into a bin of a granulator for granulation, screening the prepared granules, putting the granules into a bolt extruder for film blowing, and rolling to obtain a plastic film;
the preparation method of the outer layer is the same as that of the inner layer, and the outer layer can be obtained according to the preparation method of the inner layer;
s3, placing the outer layer, the inner layer and the silk screen layer prepared in the S2 into a Co60 irradiation chamber or an electron ray chamber for radiation crosslinking, wherein the radiation dose is 5-15 Mard, the gel content is 35-65%, and a dialysis bag film is obtained;
s4, carrying out hot-pressing sealing on the two layers of dialysis bag films to form U-shaped impressions on the dialysis bag films, then cutting the dialysis bag films into block-shaped soft bag bodies by using a cutter, conveying the soft bag bodies to an interface insertion station, and positioning the cutter falling position between two adjacent impressions on the long material of the soft bag.
The invention provides a dialysate bag and a preparation method thereof, wherein the inner layer of the dialysate bag is provided with polyvinyl chloride with high polymerization degree, so that the bag body has excellent flexibility, elasticity and strength, the inner wall of the bag body is not easy to adhere after being heated by adding EVA and a heat stabilizer, and the bag body has good antibacterial property and cold resistance by arranging a nano-silver antibacterial agent and dioctyl sebacate;
the polytetrafluoroethylene modified polypropylene and the heat stabilizer are arranged on the outer layer of the heat-resistant polypropylene composite material, so that the heat-resistant polypropylene composite material has very good heat resistance and is not easy to damage after being heated by steam.
The dialysate bag manufactured by the invention has the advantages of impact resistance, high temperature resistance, low temperature resistance, high stability, better protection on dialysate, reduction of the probability of deterioration of medicines, increase of the quality guarantee period of the medicines and guarantee of the medication safety of patients.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
Example one
The invention provides a dialysate bag, which comprises an inner layer and an outer layer, wherein the inner layer comprises the following raw materials in parts by weight: 100 parts of high-polymerization-degree polyvinyl chloride, 50 parts of EVA (ethylene vinyl acetate), 5 parts of nano-silver antibacterial agent, 3 parts of dioctyl sebacate, 5 parts of antioxidant, 1 part of plasticizer and 0.5 part of heat stabilizer, wherein the outer layer comprises the following raw materials in parts by weight: 50 parts of polytetrafluoroethylene, 80 parts of modified polypropylene and 0.5 part of heat stabilizer.
The nano silver antibacterial agent in the inner layer is nano silver powder taking inorganic superfine powder as a carrier, and the inorganic superfine powder is a mixture of anatase type nano titanium dioxide, nano silicon dioxide and zeolite.
The polyvinyl chloride with high polymerization degree in the inner layer is resin with high polymerization degree, and the average polymerization degree is more than 1500.
The melt flow index of the modified polypropylene (PP) in the outer layer is 10g/10min under the conditions of 230 ℃ and 2.16kPa, the melting point is 150 ℃, and the density is 0.87g/cm 3.
The outer layer also comprises the following raw materials in parts by weight: 0.5 part of ultraviolet resistant agent, wherein the ultraviolet resistant agent is 2-hydroxy-4-n-octoxy benzophenone.
And a wire mesh layer is arranged between the outer layer and the inner layer and is a metal mesh layer.
A method of making a dialysate bag comprising the steps of:
s1, preparing materials: the inner layer material is prepared by weighing the raw materials of all components according to the parts by weight, wherein the raw materials comprise 100 parts of high-polymerization-degree polyvinyl chloride, 50 parts of EVA, 5 parts of nano-silver antibacterial agent, 3 parts of dioctyl sebacate, 5 parts of antioxidant, 1 part of plasticizer and 0.5 part of heat stabilizer;
weighing raw materials of all components of the outer layer according to the weight part ratio, wherein the raw materials comprise 50 parts of polytetrafluoroethylene, 80 parts of modified polypropylene and 0.5 part of heat stabilizer;
s2, preparing the inner and outer layers:
the preparation method of the inner layer comprises the following steps: adding the inner layer raw materials into a container according to S1, mixing, fully mixing to obtain a premix, putting the premix into a bin of a granulator for granulation, screening the prepared granules, putting the granules into a bolt extruder for film blowing, and rolling to obtain a plastic film;
the preparation method of the outer layer is the same as that of the inner layer, and the outer layer can be obtained according to the preparation method of the inner layer;
s3, placing the outer layer, the inner layer and the silk screen layer prepared in the S2 into a Co60 irradiation chamber or an electron ray chamber for radiation crosslinking, wherein the radiation dose is 5-15 Mard, the gel content is 35-65%, and a dialysis bag film is obtained;
s4, carrying out hot-pressing sealing on the two layers of dialysis bag films to form U-shaped impressions on the dialysis bag films, then cutting the dialysis bag films into block-shaped soft bag bodies by using a cutter, conveying the soft bag bodies to an interface insertion station, and positioning the cutter falling position between two adjacent impressions on the long material of the soft bag.
Example two
The invention provides a dialysate bag, which comprises an inner layer and an outer layer, wherein the inner layer comprises the following raw materials in parts by weight: 110 parts of high-polymerization-degree polyvinyl chloride, 60 parts of EVA (ethylene vinyl acetate), 8 parts of nano-silver antibacterial agent, 4 parts of dioctyl sebacate, 10 parts of antioxidant, 10 parts of plasticizer and 1 part of heat stabilizer, wherein the outer layer comprises the following raw materials in parts by weight: 65 parts of polytetrafluoroethylene, 90 parts of modified polypropylene and 1 part of heat stabilizer.
The nano silver antibacterial agent in the inner layer is nano silver powder taking inorganic superfine powder as a carrier, and the inorganic superfine powder is a mixture of anatase type nano titanium dioxide, nano silicon dioxide and zeolite.
The polyvinyl chloride with high polymerization degree in the inner layer is resin with high polymerization degree, and the average polymerization degree is more than 1500.
The melt flow index of the modified polypropylene (PP) in the outer layer is 15g/10min under the conditions of 230 ℃ and 2.16kPa, the melting point is 160 ℃, and the density is 0.9g/cm 3.
The outer layer also comprises the following raw materials in parts by weight: 0.7 part of ultraviolet resistant agent, 2-hydroxy-4-n-octoxy benzophenone as the ultraviolet resistant agent, and a silk screen layer which is a plastic screen layer is arranged between the outer layer and the inner layer.
A method of making a dialysate bag comprising the steps of:
s1, preparing materials: the inner layer material is prepared by weighing raw materials of all components according to the parts by weight, wherein the raw materials comprise 110 parts of high-polymerization-degree polyvinyl chloride, 50-70 parts of EVA, 8 parts of nano-silver antibacterial agent, 4 parts of dioctyl sebacate, 10 parts of antioxidant, 10 parts of plasticizer and 1 part of heat stabilizer;
weighing raw materials of all components of the outer layer according to the weight part ratio, wherein the raw materials comprise 70 parts of polytetrafluoroethylene, 90 parts of modified polypropylene and 1 part of heat stabilizer;
s2, preparing the inner and outer layers:
the preparation method of the inner layer comprises the following steps: adding the inner layer raw materials into a container according to S1, mixing, fully mixing to obtain a premix, putting the premix into a bin of a granulator for granulation, screening the prepared granules, putting the granules into a bolt extruder for film blowing, and rolling to obtain a plastic film;
the preparation method of the outer layer is the same as that of the inner layer, and the outer layer can be obtained according to the preparation method of the inner layer;
s3, placing the outer layer, the inner layer and the silk screen layer prepared in the S2 into a Co60 irradiation chamber or an electron ray chamber for radiation crosslinking, wherein the radiation dose is 5-15 Mard, the gel content is 35-65%, and a dialysis bag film is obtained;
s4, carrying out hot-pressing sealing on the two layers of dialysis bag films to form U-shaped impressions on the dialysis bag films, then cutting the dialysis bag films into block-shaped soft bag bodies by using a cutter, conveying the soft bag bodies to an interface insertion station, and positioning the cutter falling position between two adjacent impressions on the long material of the soft bag.
EXAMPLE III
The invention provides a dialysate bag, which comprises an inner layer and an outer layer, wherein the inner layer comprises the following raw materials in parts by weight: 120 parts of high-polymerization-degree polyvinyl chloride, 70 parts of EVA (ethylene vinyl acetate), 10 parts of nano-silver antibacterial agent, 5 parts of dioctyl sebacate, 15 parts of antioxidant, 20 parts of plasticizer and 1.5 parts of heat stabilizer, wherein the outer layer comprises the following raw materials in parts by weight: 80 parts of polytetrafluoroethylene, 100 parts of modified polypropylene and 1.5 parts of heat stabilizer.
The nano silver antibacterial agent in the inner layer is nano silver powder taking inorganic superfine powder as a carrier, and the inorganic superfine powder is a mixture of anatase type nano titanium dioxide, nano silicon dioxide and zeolite.
The polyvinyl chloride with high polymerization degree in the inner layer is resin with high polymerization degree, and the average polymerization degree is more than 1500.
The melt flow index of the modified polypropylene (PP) in the outer layer is 20g/10min under the conditions of 230 ℃ and 2.16kPa, the melting point is 170 ℃, and the density is 0.91g/cm3, and the outer layer also comprises the following raw materials in parts by weight: 1 part of ultraviolet resistant agent, 2-hydroxy-4-n-octoxy benzophenone as the ultraviolet resistant agent, and a silk screen layer is arranged between the outer layer and the inner layer.
A method of making a dialysate bag comprising the steps of:
s1, preparing materials: the inner layer material is prepared by weighing the raw materials of all components according to the parts by weight, wherein the raw materials comprise 120 parts of high-polymerization-degree polyvinyl chloride, 70 parts of EVA, 10 parts of nano-silver antibacterial agent, 5 parts of dioctyl sebacate, 15 parts of antioxidant, 20 parts of plasticizer and 1.5 parts of heat stabilizer;
the outer layer is prepared from 80 parts by weight of polytetrafluoroethylene, 100 parts by weight of modified polypropylene and 1.5 parts by weight of heat stabilizer;
s2, preparing the inner and outer layers:
the preparation method of the inner layer comprises the following steps: adding the inner layer raw materials into a container according to S1, mixing, fully mixing to obtain a premix, putting the premix into a bin of a granulator for granulation, screening the prepared granules, putting the granules into a bolt extruder for film blowing, and rolling to obtain a plastic film;
the preparation method of the outer layer is the same as that of the inner layer, and the outer layer can be obtained according to the preparation method of the inner layer;
s3, placing the outer layer, the inner layer and the silk screen layer prepared in the S2 into a Co60 irradiation chamber or an electron ray chamber for radiation crosslinking, wherein the radiation dose is 5-15 Mard, the gel content is 35-65%, and a dialysis bag film is obtained;
s4, carrying out hot-pressing sealing on the two layers of dialysis bag films to form U-shaped impressions on the dialysis bag films, then cutting the dialysis bag films into block-shaped soft bag bodies by using a cutter, conveying the soft bag bodies to an interface insertion station, and positioning the cutter falling position between two adjacent impressions on the long material of the soft bag.
Report of physical property detection
From the test report, it can be seen that example 2 performed best.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. The dialysate bag is characterized by comprising an inner layer and an outer layer, wherein the inner layer comprises the following raw materials in parts by weight: 100-120 parts of high-polymerization-degree polyvinyl chloride, 50-70 parts of EVA (ethylene vinyl acetate), 5-10 parts of nano-silver antibacterial agent, 3-5 parts of dioctyl sebacate, 5-15 parts of antioxidant, 1-20 parts of plasticizer and 0.5-1.5 parts of heat stabilizer, wherein the outer layer comprises the following raw materials in parts by weight: 50-80 parts of polytetrafluoroethylene, 80-100 parts of modified polypropylene and 0.5-1.5 parts of heat stabilizer, wherein the polyvinyl chloride with high polymerization degree in the inner layer is high polymerization degree resin with average polymerization degree more than 1500, the melt flow index of the modified polypropylene (PP) in the outer layer is 10-20 g/10min under the conditions of 230 ℃ and 2.16kPa, the melting point is 150-170 ℃, and the density is 0.87-0.91 g/cm 3; the nano silver antibacterial agent in the inner layer is nano silver powder taking inorganic superfine powder as a carrier, and the inorganic superfine powder is a mixture of anatase type nano titanium dioxide, nano silicon dioxide and zeolite; the outer layer also comprises the following raw materials in parts by weight: 0.5-1 part of ultraviolet resistant agent, wherein the ultraviolet resistant agent is 2-hydroxy-4-n-octoxy benzophenone.
2. The dialysate bag of claim 1, wherein a mesh layer is provided between the outer and inner layers.
3. The dialysate bag of claim 2, wherein the mesh layer is a metal mesh layer or a plastic mesh layer.
4. The method of claim 1, comprising the steps of:
s1, preparing materials: the inner layer material is prepared by weighing the raw materials of all components according to the parts by weight, wherein the raw materials comprise 120 parts of high-polymerization-degree polyvinyl chloride 100-one, 50-70 parts of EVA (ethylene vinyl acetate), 5-10 parts of nano-silver antibacterial agent, 3-5 parts of dioctyl sebacate, 5-15 parts of antioxidant, 1-20 parts of plasticizer and 0.5-1.5 parts of heat stabilizer;
weighing raw materials of each component according to the weight part ratio, wherein the raw materials comprise 50-80 parts of polytetrafluoroethylene, 80-100 parts of modified polypropylene, 0.5-1.5 parts of heat stabilizer and 0.5-1 part of anti-ultraviolet agent;
s2, preparing the inner and outer layers:
the preparation method of the inner layer comprises the following steps: adding the inner layer raw materials into a container according to S1, mixing, fully mixing to obtain a premix, putting the premix into a bin of a granulator for granulation, screening the prepared granules, putting the granules into a bolt extruder for film blowing, and rolling to obtain a plastic film;
the preparation method of the outer layer is the same as that of the inner layer, and the outer layer can be obtained according to the preparation method of the inner layer;
s3, placing the outer layer, the inner layer and the silk screen layer prepared in the S2 into a Co60 irradiation chamber or an electron ray chamber for radiation crosslinking, wherein the radiation dose is 5-15 Mard, the gel content is 35-65%, and a dialysis bag film is obtained;
s4, carrying out hot-pressing sealing on the two layers of dialysis bag films to form U-shaped impressions on the dialysis bag films, then cutting the dialysis bag films into block-shaped soft bag bodies by using a cutter, conveying the soft bag bodies to an interface insertion station, and positioning the cutter falling position between two adjacent impressions on the long material of the soft bag.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4119267A (en) * | 1976-08-18 | 1978-10-10 | Agis Frank Kydonieus | Blood and intravenous solution bag |
| EP1002512A3 (en) * | 1998-11-19 | 2001-01-24 | Bracco International B.V. | Flexible container for the containment and delivery of fluids |
| CN1126788C (en) * | 1999-11-02 | 2003-11-05 | 海尔科化工程塑料国家工程研究中心有限公司 | Non-toxic polyvinyl chloride composition and its preparing process |
| CN103263707B (en) * | 2013-05-25 | 2015-09-09 | 芜湖道润药业有限责任公司 | The adherence preventing material of doubly-linked PVC medicinal liquid storage bag and operating procedure |
| CN103497446A (en) * | 2013-09-25 | 2014-01-08 | 天津市天塑科技集团有限公司第四塑料制品厂 | Environmental-friendly polyvinyl chloride (PVC) extraction-resistant anti-seepage film and preparation method thereof |
| BR112017022417B1 (en) * | 2015-04-23 | 2022-07-19 | Hemanext Inc | BLOOD STORAGE DEVICE FOR STORING OXYGEN DEPLETED BLOOD AND METHOD FOR REDUCING BLOOD OXYGEN SATURATION DURING STORAGE |
| CN105419058B (en) * | 2015-12-25 | 2018-07-13 | 湖北恒泰橡塑有限公司 | A kind of disposable vein nutrition infusion bag film and preparation method thereof |
| CN108686520A (en) * | 2018-06-12 | 2018-10-23 | 漳州龙文琪睿生物科技有限公司 | A kind of preparation method of hemodialysis membrane raw material |
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Application publication date: 20190531 Assignee: NINGBO WEIFENG NEW MATERIAL Co.,Ltd. Assignor: NINGBO HUAFENG PACKAGE CO.,LTD. Contract record no.: X2021330000736 Denomination of invention: Dialysate bag and preparation method thereof Granted publication date: 20210720 License type: Common License Record date: 20211109 |
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Application publication date: 20190531 Assignee: Ningbo Weifeng Environmental Protection Group Co.,Ltd. Assignor: NINGBO HUAFENG PACKAGE CO.,LTD. Contract record no.: X2023330000442 Denomination of invention: A dialysis solution bag and its preparation method Granted publication date: 20210720 License type: Common License Record date: 20230724 |