CN115056560A - Preparation process of medicinal high-friction composite membrane - Google Patents
Preparation process of medicinal high-friction composite membrane Download PDFInfo
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- CN115056560A CN115056560A CN202210716621.4A CN202210716621A CN115056560A CN 115056560 A CN115056560 A CN 115056560A CN 202210716621 A CN202210716621 A CN 202210716621A CN 115056560 A CN115056560 A CN 115056560A
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- 239000002131 composite material Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 239000012528 membrane Substances 0.000 title claims abstract description 19
- 239000004698 Polyethylene Substances 0.000 claims abstract description 62
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 52
- -1 polyethylene Polymers 0.000 claims abstract description 52
- 229920000573 polyethylene Polymers 0.000 claims abstract description 52
- 239000011888 foil Substances 0.000 claims abstract description 44
- 229920006267 polyester film Polymers 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 28
- 229920002635 polyurethane Polymers 0.000 claims abstract description 26
- 239000004814 polyurethane Substances 0.000 claims abstract description 26
- 239000003292 glue Substances 0.000 claims abstract description 24
- 238000007639 printing Methods 0.000 claims abstract description 10
- 229920000728 polyester Polymers 0.000 claims abstract description 7
- 238000005096 rolling process Methods 0.000 claims abstract description 5
- 239000010408 film Substances 0.000 claims description 85
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000000428 dust Substances 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 9
- 239000003085 diluting agent Substances 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 239000005030 aluminium foil Substances 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000004026 adhesive bonding Methods 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 49
- 239000003814 drug Substances 0.000 description 5
- 239000005038 ethylene vinyl acetate Substances 0.000 description 5
- 238000004806 packaging method and process Methods 0.000 description 5
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 5
- 239000004831 Hot glue Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Images
Classifications
-
- 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
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal 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
- B32B15/085—Layered products comprising a layer of metal comprising metal 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 comprising polyolefins
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal 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
- B32B15/09—Layered products comprising a layer of metal comprising metal 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 comprising polyesters
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- 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
-
- 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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a preparation process of a medicinal high-friction composite film, wherein a composite film body consists of a polyester film, an aluminum foil and a polyethylene film; the preparation process of the medicinal high-friction composite membrane comprises the following steps: firstly, preparing a polyester material, namely PET; secondly, preparing an aluminum material, namely AL; a: the aluminum material is made into a thin sheet by a rolling mode to form an aluminum foil; and thirdly, preparing a polyethylene material, namely PE. This preparation technology of medicinal high friction type complex film, complex film subdivision structure is five layers altogether, wherein mainly through setting up polyester film, aluminium foil and polyethylene film three-layer, and at first layer polyester film inner face printing ink layer, the printing ink layer is with the polyurethane glue bonding of the one side of second floor aluminium foil, the another side reuse polyurethane glue of aluminium foil is with the polyethylene film bonding, and then form a complex film, polyethylene film is provided with the three-layer membrane of coextruding simultaneously again, just formed the complex film that will use of high friction performance after polyethylene film and the polyester film are compound.
Description
Technical Field
The invention relates to the technical field of composite film preparation, in particular to a preparation process of a medicinal high-friction composite film.
Background
The composite film is a novel film which is prepared by rolling, adhering and compounding double-layer or multi-layer film materials made of different materials, corresponding additives can be added according to different use places and uses of the composite film, meanwhile, the composite film has the advantages of high strength and good extensibility and is commonly used for packaging medicaments, for example, the composite film for medicinal high-friction packaging with the publication number of CN111073542A and the preparation method thereof, wherein the composite film comprises a bottom layer, a middle layer and an outer layer, and the middle layer is positioned between the bottom layer and the outer layer; the EVA hot melt adhesive layer is used as the outer layer, the polyethylene film is used as the bottom layer and the middle layer, the prepared composite film has the effects of high friction, excellent water vapor permeability resistance and good sealing property, is safer and more environment-friendly when being used as medicinal packaging, can effectively prevent the permeation of water vapor and oxygen, and can also effectively avoid the diffusion of contents; the outer layer is designed into an EVA hot melt adhesive layer, the thickness is 20-50 um, the EVA hot melt adhesive is an ethylene-vinyl acetate type hot melt adhesive, 25% of EVA resin is used as a base material, processing aids such as wax, an antioxidant and a filler are added, and the thermoplastic adhesive is prepared after melt blending and has the advantages of good adhesive property, easiness in processing, no pollution, high surface friction coefficient and the like, and has higher practicability. However, the composite film for medicinal high-friction packaging and the preparation method thereof still have the following defects in the actual use process:
traditional complex film often adds various different additives in the original material to this increases the frictional property of complex film self, not only can influence the quality of complex film, still can cause the influence to the medicine when follow-up is packed to the medicine, and the complex film thickness that adds too much material simultaneously also can increase, is unfavorable for batch production, to above-mentioned problem, urgently needs to carry out the innovative design on the basis of the preparation technology of original complex film.
Disclosure of Invention
The invention aims to provide a preparation process of a medicinal high-friction composite film, and aims to solve the problems that the prior composite film is provided with various additives added into original materials to increase the self-friction property of the composite film, the quality of the composite film is influenced, medicines are influenced in subsequent medicine packaging, and the thickness of the composite film added with excessive materials is increased to be not beneficial to batch production.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of medicinal high-friction composite membrane comprises forming a composite membrane body from polyester film, aluminum foil and polyethylene film;
the preparation process of the medicinal high-friction composite membrane comprises the following steps:
firstly, preparing a polyester material, namely PET;
a: extruding the polyester material to form a thick sheet, and then stretching the thick sheet to prepare a polyester film;
b: removing impurities such as dust and the like on the surface of the polyester film to ensure the surface cleanness of the polyester film, printing an ink layer on the inner surface of the manufactured polyester film to ensure the distribution uniformity of the ink layer on the polyester film, and drying the ink layer to quickly solidify the ink layer;
secondly, preparing an aluminum material, namely AL;
a: the aluminum material is made into a thin sheet by a rolling mode to form an aluminum foil;
b: removing impurities such as dust and the like on the surface of the aluminum foil to ensure the surface cleanness of the aluminum foil, and then coating polyurethane glue on one surface of the manufactured aluminum foil close to the polyester film to ensure that the ink layer and the aluminum foil can be bonded through the polyurethane glue and the polyurethane glue is coated on the aluminum foil more uniformly;
c: then coating polyurethane glue on the surface of the manufactured aluminum foil, which is far away from the polyester film, so that the upper surface and the lower surface of the aluminum foil are both provided with the polyurethane glue, and the type of the glue is AD 919;
thirdly, preparing a polyethylene material, namely PE;
a: heating and melting PE particles, blowing the PE particles into a thin film to prepare a polyethylene film, removing impurities such as dust and the like on the surface of the polyethylene film to ensure the surface of the polyethylene film to be clean, adhering the polyethylene film with the aluminum foil through polyurethane glue on the surface of the aluminum foil, pressing the polyester film, the aluminum foil and the polyethylene film with proper sizes through equipment to form a composite film, and cutting the composite film body with the uneven edge part through a cutting machine;
b: the polyethylene film has high friction properties, and the polyethylene film is divided into three layers.
Preferably, the polyester film is disposed at the outermost layer, the aluminum foil is disposed between the polyester film and the polyethylene film, and the polyethylene film is disposed at the innermost layer, and the polyester film, the aluminum foil, and the polyethylene film are bonded to form the composite film.
Preferably, the ink layer in the first step is polyurethane high-temperature resistant ink, a diluent is added during ink printing, and the main agent: curing agent: the proportion of the thinner is 1: 0.2: 1.2, and the ink layer can be adhered to the aluminum foil through polyurethane glue.
Preferably, the diluent is three of ethyl acetate, n-propyl ester and isopropanol, and is prepared according to different requirements.
Preferably, the polyethylene film in the third step is a three-layer co-extrusion film, and the co-extrusion film is divided into an upper layer, a middle layer and a lower layer.
Preferably, the three-layer co-extrusion film is made of polyethylene material without opening smoothness, the friction force of the made film reaches more than 0.6, and the friction property of the composite film is improved.
Compared with the prior art, the invention has the beneficial effects that: this preparation technology of medicinal high friction type complex film, complex film subdivision structure is five layers altogether, wherein mainly through setting up polyester film, aluminium foil and polyethylene film three-layer, and at first layer polyester film inner face printing ink layer, the printing ink layer is with the polyurethane glue bonding of the one side of second floor aluminium foil, the another side reuse polyurethane glue of aluminium foil is with the polyethylene film bonding, and then form a complex film, polyethylene film is provided with the three-layer membrane of coextruding simultaneously again, just formed the complex film that will use of high friction performance after polyethylene film and the polyester film are compound.
Drawings
FIG. 1 is a schematic view of the decomposition structure of the composite membrane of the present invention.
In the figure: 1. a composite membrane body; 2. a polyester film; 3. aluminum foil; 4. a polyethylene film.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
Referring to fig. 1, the present invention provides a technical solution: a preparation method of a medicinal high-friction composite membrane comprises forming a composite membrane body 1 by a polyester film 2, an aluminum foil 3 and a polyethylene film 4;
the preparation process of the medicinal high-friction composite membrane comprises the following steps:
firstly, preparing a polyester material, namely PET;
a: extruding the polyester material to form a thick sheet, and then stretching the thick sheet to prepare a polyester film 2;
b: removing impurities such as dust and the like on the surface of the polyester film 2 to ensure the cleanness of the surface, printing an ink layer on the inner surface of the manufactured polyester film 2 to ensure the uniformity of the distribution of the ink layer on the polyester film 2, and drying the ink layer to quickly solidify the ink layer;
secondly, preparing an aluminum material, namely AL;
a: forming the aluminum material into a thin sheet by rolling to form an aluminum foil 3;
b: removing impurities such as dust and the like on the surface of the aluminum foil 3 to ensure the surface cleanness of the aluminum foil, and then coating polyurethane glue on one surface of the manufactured aluminum foil 3 close to the polyester film 2 to ensure that the ink layer and the aluminum foil 3 can be bonded through the polyurethane glue and the polyurethane glue is coated on the aluminum foil 3 more uniformly;
c: then coating polyurethane glue on the surface of the manufactured aluminum foil 3 away from the polyester film 2, so that the upper surface and the lower surface of the aluminum foil 3 are both provided with the polyurethane glue, and the type of the glue is AD 919;
thirdly, preparing a polyethylene material, namely PE;
a: heating and melting PE particles, blowing the PE particles into a thin film to prepare a polyethylene film 4, removing impurities such as dust and the like on the surface of the polyethylene film 4 to ensure the surface of the polyethylene film 4 to be clean, then adhering the polyethylene film 4 to the aluminum foil 3 through polyurethane glue on the surface of the aluminum foil 3, pressing the polyester film 2, the aluminum foil 3 and the polyethylene film 4 with proper sizes through equipment to form a composite film, and cutting the composite film body 1 with uneven edges through a cutting machine;
b: the polyethylene film 4 has high friction performance, and the polyethylene film 4 is divided into three layers.
The polyester film 2 is arranged at the outermost layer, the aluminum foil 3 is arranged between the polyester film 2 and the polyethylene film 4, and the polyethylene film 4 is arranged at the innermost layer;
in the first step, the ink layer is made of polyurethane high-temperature-resistant ink, a diluent is added during printing of the ink, and the main agent is as follows: curing agent: the proportion of the diluent is 1: 0.2: 1.2;
the thinner is three of ethyl acetate, n-propyl ester and isopropanol, and is prepared according to different requirements;
the polyethylene film 4 in the third step is a three-layer co-extrusion film which is divided into an upper layer, a middle layer and a lower layer;
the three-layer co-extrusion film adopts polyethylene material without opening smoothness, and the friction force of the manufactured film reaches more than 0.6.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (6)
1. A preparation process of a medicinal high-friction composite film comprises the following steps that a composite film body (1) is composed of a polyester film (2), an aluminum foil (3) and a polyethylene film (4);
the method is characterized in that: the preparation process of the medicinal high-friction composite membrane comprises the following steps:
firstly, preparing a polyester material, namely PET;
a: extruding the polyester material to form a thick sheet, and then stretching the thick sheet to prepare a polyester film (2);
b: removing impurities such as dust and the like on the surface of the polyester film (2) to ensure the cleanness of the surface, printing an ink layer on the inner surface of the manufactured polyester film (2), ensuring the distribution uniformity of the ink layer on the polyester film (2), and drying the ink layer to quickly solidify the ink layer;
secondly, preparing an aluminum material, namely AL;
a: forming the aluminum material into a thin sheet by rolling to form an aluminum foil (3);
b: removing impurities such as dust and the like on the surface of the aluminum foil (3) to ensure the surface cleanness of the aluminum foil, and then coating polyurethane glue on one surface of the manufactured aluminum foil (3) close to the polyester film (2) to ensure that the ink layer and the aluminum foil (3) can be bonded through the polyurethane glue and the polyurethane glue is coated on the aluminum foil (3) more uniformly;
c: then coating polyurethane glue on one surface of the manufactured aluminum foil (3) far away from the polyester film (2), so that the upper surface and the lower surface of the aluminum foil (3) are both provided with the polyurethane glue, and the type of the glue is AD 919;
thirdly, preparing a polyethylene material, namely PE;
a: heating and melting PE particles, blowing the PE particles into a thin film to prepare a polyethylene film (4), removing impurities such as dust and the like on the surface of the polyethylene film (4) to ensure the surface of the polyethylene film to be clean, then adhering the polyethylene film (4) with the aluminum foil (3) through polyurethane glue on the surface of the aluminum foil, pressing the polyester film (2), the aluminum foil (3) and the polyethylene film (4) with proper sizes through equipment to form a composite film, and cutting the composite film body (1) with uneven edges through a cutting machine;
b: the polyethylene film (4) has high friction properties, and the polyethylene film (4) is divided into three layers.
2. The preparation process of the medicinal high-friction composite membrane according to claim 1, wherein the preparation process comprises the following steps: the polyester film (2) is arranged on the outermost layer, the aluminum foil (3) is arranged between the polyester film (2) and the polyethylene film (4), and the polyethylene film (4) is arranged on the innermost layer.
3. The preparation process of the medicinal high-friction composite membrane according to claim 1, wherein the preparation process comprises the following steps: in the first step, the ink layer is made of polyurethane high-temperature-resistant ink, a diluent is added during printing of the ink, and a main agent: curing agent: the ratio of the diluent is 1: 0.2: 1.2.
4. The preparation process of the medicinal high-friction composite membrane according to claim 3, characterized in that: the diluent is three types of ethyl acetate, n-propyl ester and isopropanol, and is prepared according to different requirements.
5. The preparation process of the medicinal high-friction composite membrane according to claim 1, wherein the preparation process comprises the following steps: and in the third step, the polyethylene film (4) is a three-layer co-extrusion film which is divided into an upper layer, a middle layer and a lower layer.
6. The preparation process of the medicinal high-friction composite membrane according to claim 5, wherein the preparation process comprises the following steps: the three-layer co-extrusion film is made of polyethylene without opening smoothness, and the friction force of the made film is more than 0.6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210716621.4A CN115056560A (en) | 2022-06-23 | 2022-06-23 | Preparation process of medicinal high-friction composite membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210716621.4A CN115056560A (en) | 2022-06-23 | 2022-06-23 | Preparation process of medicinal high-friction composite membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115056560A true CN115056560A (en) | 2022-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210716621.4A Pending CN115056560A (en) | 2022-06-23 | 2022-06-23 | Preparation process of medicinal high-friction composite membrane |
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| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04118232A (en) * | 1990-09-03 | 1992-04-20 | Dainippon Printing Co Ltd | Laminated sheet |
| JP2015066724A (en) * | 2013-09-27 | 2015-04-13 | 大日本印刷株式会社 | Packaging laminate tube material and packaging tube employing the same as well as packaging tube laser printed body |
| CN104845445A (en) * | 2015-05-22 | 2015-08-19 | 东昌工业（临海）有限公司 | Special ink for PI (Polyimide) film gravure |
| CN105437662A (en) * | 2015-12-29 | 2016-03-30 | 浙江金石包装有限公司 | Composite film for drug packaging and preparation method of composite film |
| CN105667011A (en) * | 2016-03-02 | 2016-06-15 | 江阴申隆包装材料有限公司 | Composite membrane having stable friction coefficient and capable of being spurted with codes and preparation method of composite membrane |
| CN105965999A (en) * | 2016-05-05 | 2016-09-28 | 永新股份（黄山）包装有限公司 | Composite film for milk powder package |
-
2022
- 2022-06-23 CN CN202210716621.4A patent/CN115056560A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04118232A (en) * | 1990-09-03 | 1992-04-20 | Dainippon Printing Co Ltd | Laminated sheet |
| JP2015066724A (en) * | 2013-09-27 | 2015-04-13 | 大日本印刷株式会社 | Packaging laminate tube material and packaging tube employing the same as well as packaging tube laser printed body |
| CN104845445A (en) * | 2015-05-22 | 2015-08-19 | 东昌工业（临海）有限公司 | Special ink for PI (Polyimide) film gravure |
| CN105437662A (en) * | 2015-12-29 | 2016-03-30 | 浙江金石包装有限公司 | Composite film for drug packaging and preparation method of composite film |
| CN105667011A (en) * | 2016-03-02 | 2016-06-15 | 江阴申隆包装材料有限公司 | Composite membrane having stable friction coefficient and capable of being spurted with codes and preparation method of composite membrane |
| CN105965999A (en) * | 2016-05-05 | 2016-09-28 | 永新股份（黄山）包装有限公司 | Composite film for milk powder package |
Non-Patent Citations (1)
| Title |
|---|
| 陈蕴智等: "《印刷材料学》", 北京：中国轻工业出版社, pages: 206 - 210 * |
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