CN110509643B - PE (polyethylene) temperature difference film and medical header bag prepared by adopting same - Google Patents
PE (polyethylene) temperature difference film and medical header bag prepared by adopting same Download PDFInfo
- Publication number
- CN110509643B CN110509643B CN201910797960.8A CN201910797960A CN110509643B CN 110509643 B CN110509643 B CN 110509643B CN 201910797960 A CN201910797960 A CN 201910797960A CN 110509643 B CN110509643 B CN 110509643B
- Authority
- CN
- China
- Prior art keywords
- bag body
- layer
- temperature difference
- thickness
- zone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004698 Polyethylene Substances 0.000 title abstract description 37
- -1 polyethylene Polymers 0.000 title abstract description 6
- 229920000573 polyethylene Polymers 0.000 title abstract description 6
- 239000004775 Tyvek Substances 0.000 claims abstract description 23
- 229920000690 Tyvek Polymers 0.000 claims abstract description 23
- 239000003292 glue Substances 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims description 15
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 abstract description 2
- 239000011521 glass Substances 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000010073 coating (rubber) Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 229940127554 medical product Drugs 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000005021 flexible packaging material Substances 0.000 description 1
- 230000002439 hemostatic effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B42/00—Surgical gloves; Finger-stalls specially adapted for surgery; Devices for handling or treatment thereof
- A61B42/40—Packages or dispensers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/00051—Accessories for dressings
- A61F13/00072—Packaging of dressings
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- 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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
-
- 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
- B32B27/08—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 of synthetic resin
-
- 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
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgery (AREA)
- Vascular Medicine (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Bag Frames (AREA)
- Laminated Bodies (AREA)
- Materials For Medical Uses (AREA)
Abstract
The invention discloses a PE (polyethylene) temperature difference film and a medical header bag prepared by the same, wherein the PE temperature difference film comprises an outer layer, a supporting middle layer and an inner layer, the outer layer is higher than the inner layer in temperature tolerance by 15-20 ℃, the thickness of the PE temperature difference film is 60-90 mu m, the thickness of the outer layer accounts for 27-30% of the thickness of the supporting middle layer, the thickness of the inner layer accounts for 36-40% of the thickness of the supporting middle layer, and the thickness of the inner layer accounts for 27-30% of the thickness of the film. The top bag comprises an upper bag body, a lower bag body and tyvek strong gummed paper, wherein the upper bag body and the lower bag body are prepared from PE (polyethylene) temperature difference films, the two sides of the upper bag body and the two sides of the lower bag body and the bottom end part of the lower bag body are aligned and then are in lap joint through edge sealing, and the tyvek strong gummed paper is connected with the upper bag body and the lower bag body through edge sealing and bottom sealing. The temperature difference of 15-20 ℃ exists between the inner layer and the outer layer of the temperature difference film, so that the flatness and the firmness of the edge seal are ensured; the head bag prepared by the temperature difference film realizes no paper scrap fiber falling off during the process of preparing the Tyvek gummed paper glass, the glue layer is transferred uniformly, and the requirement of safe opening is met.
Description
Technical Field
The invention belongs to the technical field of packaging materials, and particularly relates to a PE (polyethylene) temperature difference film and a medical header bag prepared by the PE temperature difference film.
Background
The plastic flexible packaging material generally refers to and is formed by plastics or plastic composite, soft texture usually, the packing to commodity is realized to modes such as accessible system bag, parcel, current difference in temperature membrane, the difference in temperature that its inside and outside layer is durable is less, therefore, in the heat-seal in-process, when the heat-seal temperature is high appears very easily, the department of sealing warp and the roughness is relatively poor, when the heat-seal temperature is low, seal and level, but very easily appear not firm and virtual seal the phenomenon, therefore, research and development design a difference in temperature's difference in temperature membrane to it is necessary very much to improve system bag in-process heat-seal's roughness and fastness.
The tip bag is used for packaging medical products, such as medical gloves, hemostatic gauze, surgical gown protective clothing and the like, the existing tip bag is provided with a peeling opening which is opened safely and is scalded with a bag body by adopting a Tyvek material, the existing tip bag is provided with tiny transparent lines and transparent points which are not uniformly transferred by a picture glue layer in the Tyvek peeling process, or the tyvek glue layer is damaged in the peeling process due to overhigh sealing strength, paper scraps are left on the glue layer after the peeling, the pollution of the medical products is easily caused, and therefore the tip bag is designed, the coating of the Tyvek glue layer is ensured to be uniformly transferred, and the surface is smooth and has no rough edge phenomenon.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a PE (polyethylene) temperature difference film and a medical header bag prepared by adopting the PE temperature difference film.
The invention is realized by the following technical scheme:
the PE temperature difference film is characterized by comprising an outer layer with a high melting point, a supporting middle layer and an inner layer with a low melting point, wherein the outer layer is higher than the inner layer in temperature tolerance by 15-20 ℃, the thickness of the PE temperature difference film is 60-90 mu m, the thickness of the outer layer accounts for 27-30% of the thickness of the film, the thickness of the supporting middle layer accounts for 36-40% of the thickness of the film, and the thickness of the inner layer accounts for 27-30% of the thickness of the film.
The PE temperature difference film is characterized in that the outer layer is composed of the following raw materials, by weight, 50% of Dow 2036, 25% of Mitsui chemical 2320H and 25% of Yangba 2426H.
The PE temperature difference film is characterized in that the supporting middle layer is composed of the following raw materials in parts by weight, 50% of Yangba 2420H and 50% of Dow 5401G.
The PE temperature difference film is characterized in that the inner layer is composed of the following raw materials, by weight, 25% of Dow 1881G, 50% of Mitsui chemical SP1520 and 25% of Yangba 2426H.
The PE temperature difference film is characterized in that the maximum tolerance temperature of the outer layer is 125 ℃.
The PE temperature difference film is characterized by being prepared by the following steps:
1) respectively selecting raw materials of each layer specified by the process, and premixing the raw materials by a high-speed mixer to obtain premix of each layer;
2) respectively sucking the premix of each layer into a storage hopper of each layer of extruder, setting different temperatures for feeding, and preheating, plasticizing and mixing to obtain a viscous liquid state;
3) after the mixed viscous liquid state enters a die and is converged, compressed air is filled into the co-extrusion die head to blow according to the size requirement of a product in a high-elastic state, and the co-extrusion die head is cooled and shaped by an air ring to finally form a film;
4) and finally, rolling and packaging the paper by a guide roller.
The PE temperature difference film is characterized in that the temperature of each layer of extruder in the step 2) is set in a segmented mode, specifically, the temperature of each segment is set as a preheating segment in a 1-2 area, a melting segment or a plasticizing segment in a 3-4 area and a mixing segment in a 5-6 area:
outer layer: zone 1 165 ℃, zone 2 175 ℃, zone 3-4, 185 ℃, zone 5-6, 180 ℃;
middle layer: 160 ℃ in a region 1, 165 ℃ in a region 2, 175 ℃ in a region 3-4 and 170 ℃ in a region 5-6;
inner layer: zone 1 150 ℃, zone 2 160 ℃, zone 3-4, 165 ℃ and zone 5-6 at 160 ℃.
The medical top bag prepared from the PE temperature difference film is characterized by comprising an upper bag body, a lower bag body and tyvek strong gummed paper, wherein the upper bag body and the lower bag body are prepared from the PE temperature difference film, the two sides and the bottom end part of the upper bag body and the lower bag body are aligned and then are in lap joint through edge sealing, and the tyvek strong gummed paper is connected with the upper bag body and the lower bag body through edge sealing and bottom sealing.
The medical top bag prepared by the PE temperature difference film is characterized in that the upper bag body and the lower bag body are respectively composed of an inner layer, a supporting middle layer and an outer layer, and the inner layer of the upper bag body is in contact with the inner layer of the lower bag body.
The medical top bag prepared by the PE temperature difference film is characterized in that the length of the lower bag body at one end bonded with the Tyvek glue coating paper is longer than that of the upper bag body, the Tyvek glue coating paper is connected with the lower bag body through the inner layer bottom seal, and the Tyvek glue coating paper is connected with the upper bag body through the outer layer bottom seal.
The medical top bag prepared by the PE temperature difference film is characterized in that the heat sealing pulling force of the inner bottom seal and the outer bottom seal is 3.5-4N/15 mm.
Compared with the prior art, the invention has the following beneficial effects:
1) the temperature difference of 15-20 ℃ exists between the inner layer and the outer layer of the temperature difference film, so that the flatness and the firmness of the edge seal are ensured;
2) the head bag prepared by the temperature difference film realizes no paper scrap fiber falling off during the process of preparing the Tyvek gummed paper glass, the glue layer is transferred uniformly, and the requirement of safe opening is met.
Drawings
FIG. 1 is a flow chart of a process for preparing a temperature difference film according to the present invention;
FIG. 2 is a schematic view of the construction of a header bag;
FIG. 3 is a layered structure diagram of a PE temperature difference film;
in the figure, 1-outer layer, 2-supporting middle layer, 3-inner layer, 4-upper bag body, 5-lower bag body, 6-Tewei strong gummed paper, 7-edge seal, 8-bottom seal, 9-inner layer bottom seal and 10-outer layer bottom seal.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings, and specific embodiments are given.
Example 1
The PE temperature difference film with the thickness of 60 micrometers comprises an outer layer with a high melting point and a highest tolerance temperature of 125 ℃, a supporting middle layer and an inner layer with a low melting point, the specific structure is shown in figure 3, wherein the thickness of the outer layer is 18 micrometers, the thickness of the supporting middle layer is 24 micrometers, the thickness of the inner layer is 18 micrometers, the tolerance temperature of the outer layer is 15-20 ℃ higher than that of the inner layer, and the outer layer of the PE temperature difference film comprises the following raw materials in parts by weight, namely 50% of Tao 2036, 25% of Mitsui chemical 2320H and 25% of Yangba 2426H; the support middle layer is composed of the following raw materials in parts by weight, 50% of Yangba 2420H and 50% of Dow 5401G; the inner layer is composed of the following raw materials, by weight, 25% of Dow 1881G, 50% of Mitsui chemical SP1520 and 25% of Yangba 2426H.
The specific preparation process of the PE temperature difference film is as follows, the specific process flow is shown in figure 1,
1) respectively selecting raw materials of each layer specified by the process, and premixing the raw materials by a high-speed mixer to obtain premix of each layer; 2) respectively sucking the premix of each layer into a storage hopper of each layer of extruder, setting different temperatures for feeding, and preheating, plasticizing and mixing to obtain a viscous liquid state; 3) after the mixed viscous liquid state enters a die and is converged, compressed air is filled into the co-extrusion die head to blow according to the size requirement of a product in a high-elastic state, and the co-extrusion die head is cooled and shaped by an air ring to finally form a film; 4) and finally, rolling by a guide roller, packaging, putting on a tray, and warehousing. The extruder temperature of each layer is set in sections, specifically, the extruder temperature is set as the following sections in a preheating section of 1-2 zones, a melting section or a plasticizing section of 3-4 zones and a mixing section of 5-6 zones:
outer layer: zone 1 165 ℃, zone 2 175 ℃, zone 3-4, 185 ℃, zone 5-6, 180 ℃;
middle layer: 160 ℃ in a region 1, 165 ℃ in a region 2, 175 ℃ in a region 3-4 and 170 ℃ in a region 5-6;
inner layer: zone 1 150 deg.C, zone 2 160 deg.C, zone 3-4 deg.C, zone 165 deg.C, and zone 5-6 deg.C, 160 deg.C.
Example 2
The PE temperature difference film of this example is different from that of example 1 in that the thickness is 90 μm, the thickness of the outer layer is 24.3 μm, the thickness of the support middle layer is 32.4 μm, and the thickness of the inner layer is 24.3 μm, and the other steps are the same as those of example 1.
Example 3
Adopt the PE thermoelectric film preparation medical top bag of above-mentioned embodiment 1 preparation, concrete structure sees figure 1, including adopting the upper bag body and lower bag body, the strong rubber coating of tyvek, the upper bag body realizes the overlap joint structure through the edge seal after aligning with lower bag body both sides and bottom portion, the strong rubber coating of tyvek passes through edge seal and the end seal and realizes being connected with the upper bag body and lower bag body, the upper bag body and lower bag body by the inlayer, support middle level and skin constitution, and the inlayer of the upper bag body and the inlayer contact setting of the lower bag body, the length of the lower bag body of the one end that bonds with the strong rubber coating of tyvek is longer than the length of the upper bag body, be connected through the inlayer end seal between tyvek and the lower bag body, be connected through the inlayer end seal between tyvek and the upper bag body. The heat-sealing pulling force of the inner bottom seal and the outer bottom seal is 3.5-4N/15 mm.
The performance test data and the detection method of the PE temperature difference film of the embodiment 1 are as follows:
the top bag of above-mentioned structure that adopts this PE thermoelectric film to prepare, its heat-seal pulling force is moderate, has both guaranteed the fastness of bonding, is convenient for again peel off fast safely, is less than the tensile minimum of this heat-seal, then bonds insecurely, easily opens, is greater than the tensile maximum value of this heat-seal, then easily appears the piece when peeling off, pollutes the content.
Claims (4)
- The PE temperature difference film is characterized by comprising an outer layer (1) with a high melting point, a supporting middle layer (2) and an inner layer (3) with a low melting point, wherein the outer layer (1) is higher than the inner layer (3) in temperature by 15-20 ℃, the thickness of the PE temperature difference film is 60-90 mu m, the thickness of the outer layer (1) accounts for 27-30% of the thickness of the film, the thickness of the supporting middle layer (2) accounts for 36-40% of the thickness of the film, the thickness of the inner layer (3) accounts for 27-30% of the thickness of the film, and the outer layer (1) is composed of the following raw materials in parts by weight, 50% of Dow 6, 25% of Mitsui chemistry 2320H and 25% of Yangba 2426H; the supporting middle layer (2) is composed of the following raw materials, by weight, 50% of Yangbuck 2420H and 50% of Dow 5401G; the inner layer (3) is composed of the following raw materials, by weight, 25% of Dow 1881G, 50% of Mitsui chemical SP1520 and 25% of Yangbuck 2426H; the maximum tolerance temperature of the outer layer (1) is 125 ℃;the PE temperature difference film is prepared by the following steps:1) respectively selecting raw materials of each layer specified by the process, and premixing the raw materials by a high-speed mixer to obtain premix of each layer;2) respectively sucking the premix of each layer into a storage hopper of each layer of extruder, setting different temperatures for feeding, and preheating, plasticizing and mixing to obtain a viscous liquid state; the temperature of each layer of extruder is set in sections, specifically a preheating section in a 1-2 zone, a melting section or a plasticizing section in a 3-4 zone and a mixing section in a 5-6 zone, and the temperature of each section is set as follows: outer layer: 165 ℃ in zone 1, 175 ℃ in zone 2, 185 ℃ in zone 3-4 and 180 ℃ in zone 5-6; middle layer: 160 ℃ in a region 1, 165 ℃ in a region 2, 175 ℃ in a region 3-4 and 170 ℃ in a region 5-6; inner layer: zone 1 at 150 ℃, zone 2 at 160 ℃, zone 3-4 at 165 ℃ and zone 5-6 at 160 ℃;3) after the mixed viscous liquid state enters a die and is converged, compressed air is filled into the co-extrusion die head to blow according to the size requirement of a product in a high-elastic state, and the co-extrusion die head is cooled and shaped by an air ring to finally form a film;4) and finally, rolling and packaging the paper by a guide roller.
- 2. The medical header bag prepared by the PE temperature difference film of claim 1 comprises an upper bag body (4) and a lower bag body (5) prepared by the PE temperature difference film, and Tyvek glue-coated paper (6), wherein the upper bag body (4) and the lower bag body (5) are aligned at the two sides and the bottom end parts and then are connected with each other through an edge seal (7) and a bottom seal (8), and the Tyvek glue-coated paper (6) is connected with the upper bag body (4) and the lower bag body (5) through the edge seal (7).
- 3. The medical tip bag made of the PE thermo-differential film according to claim 2, wherein the upper bag body (4) and the lower bag body (5) are composed of an inner layer (3), a supporting middle layer (2) and an outer layer (1), and the inner layer of the upper bag body (4) is disposed in contact with the inner layer of the lower bag body (5).
- 4. The medical tip bag made of a PE thermo-film according to claim 2, wherein the length of the lower bag body (5) at the end bonded with the tyvek (6) is longer than the length of the upper bag body (4), the tyvek (6) and the lower bag body (5) are connected by an inner bottom seal (9), the tyvek (6) and the upper bag body (4) are connected by an outer bottom seal (10), and the heat-sealing tension of the inner bottom seal (9) and the outer bottom seal (10) is 3.5 to 4N/15 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910797960.8A CN110509643B (en) | 2019-08-27 | 2019-08-27 | PE (polyethylene) temperature difference film and medical header bag prepared by adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910797960.8A CN110509643B (en) | 2019-08-27 | 2019-08-27 | PE (polyethylene) temperature difference film and medical header bag prepared by adopting same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110509643A CN110509643A (en) | 2019-11-29 |
| CN110509643B true CN110509643B (en) | 2022-06-03 |
Family
ID=68627309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910797960.8A Active CN110509643B (en) | 2019-08-27 | 2019-08-27 | PE (polyethylene) temperature difference film and medical header bag prepared by adopting same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110509643B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105366174A (en) * | 2015-11-30 | 2016-03-02 | 江门市新时代外用制剂有限公司 | Medical sterilizing and packaging header bag |
| CN108068421A (en) * | 2017-12-26 | 2018-05-25 | 常州市华健药用包装材料股份有限公司 | Medicinal high-speed packaging polyethylene film |
| CN208746607U (en) * | 2018-09-07 | 2019-04-16 | 南通富华医用包装有限公司 | A kind of uncoated medical top bag |
-
2019
- 2019-08-27 CN CN201910797960.8A patent/CN110509643B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105366174A (en) * | 2015-11-30 | 2016-03-02 | 江门市新时代外用制剂有限公司 | Medical sterilizing and packaging header bag |
| CN108068421A (en) * | 2017-12-26 | 2018-05-25 | 常州市华健药用包装材料股份有限公司 | Medicinal high-speed packaging polyethylene film |
| CN208746607U (en) * | 2018-09-07 | 2019-04-16 | 南通富华医用包装有限公司 | A kind of uncoated medical top bag |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110509643A (en) | 2019-11-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104553218B (en) | Ultra-low temperature heat sealing bidirectional stretching polypropylene film and manufacture method thereof | |
| CN104582958B (en) | High-temperature molding adiabatic membrane and the vacuum heat insulation materials using this adiabatic membrane and preparation method thereof | |
| KR900003349B1 (en) | Coextruded multilayer and sleeve label made therefrom | |
| KR101011359B1 (en) | Shape-memory laminated polybutylene terephthalate film, production process and use thereof, and process for production of polybutylene terephthalate film | |
| CN101939230B (en) | Porous film for heat-sealable bag-constituting member, heat-sealable bag-constituting member and disposable body warmer | |
| CN104772956B (en) | A kind of light-weight packed film and preparation method thereof | |
| US11745436B2 (en) | Liquid-impermeable stitching method for seam of vapor-permeable virus-barrier fabric | |
| CN108773137A (en) | Automatically it is packed for polyethylene film and preparation method thereof | |
| CN107082927A (en) | A kind of macromolecule member material and its preparation method and application | |
| CN108790352A (en) | A kind of transparent packaging film and preparation method thereof | |
| CN108016013A (en) | One kind easily takes off stretched multi-layer coextrusion casting film and its production method | |
| CA2440324A1 (en) | Hdpe label film | |
| CN110509643B (en) | PE (polyethylene) temperature difference film and medical header bag prepared by adopting same | |
| CN109080968A (en) | Multilayer zipper bubble bags manufacture craft and its product | |
| CN109605881A (en) | A kind of sealed membrane and preparation method thereof for UHT paper plastic-aluminum liquid packaging material | |
| CN108774475A (en) | A kind of hot soarfing is from tearing adhesive tape | |
| GB1536428A (en) | Heat-sealed packages | |
| CN110216904B (en) | Preparation method of environment-friendly automatic coating film | |
| KR20150124246A (en) | Method And Apparatus For Producing Dual Ply Bag | |
| KR101790228B1 (en) | Seam sealing tape and method of using the same | |
| CN115417007A (en) | Novel easy-to-tear dry-wet separation bag, preparation process and heat-sealing layer film | |
| CN108922375A (en) | Heat cross-linked type in-mold label film and preparation method thereof | |
| CN208438837U (en) | A kind of medical blister packaging film of symmetric form two sides envelope | |
| CN110816004A (en) | Ultralow-temperature PE (polyethylene) membrane and raw material process thereof | |
| CN214606386U (en) | High-transparency co-extruded film capable of being embossed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 133, miaohouwang Road, Xixing street, Binjiang District, Hangzhou, Zhejiang 310051 Patentee after: Hangzhou Zhongcheng Material Technology Co.,Ltd. Address before: No. 133, miaohouwang Road, Xixing street, Binjiang District, Hangzhou, Zhejiang 310051 Patentee before: HANGZHOU ZHONGCHENG PLASTIC PACKING CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231222 Address after: 313009 Beixing Road, Shanlian Town, Nanxun District, Huzhou City, Zhejiang Province Patentee after: Zhejiang Desheng New Materials Technology Co.,Ltd. Address before: No. 133, miaohouwang Road, Xixing street, Binjiang District, Hangzhou, Zhejiang 310051 Patentee before: Hangzhou Zhongcheng Material Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |