Friction-resistant composite film for medicine

Abstract

The utility model belongs to the technical field of composite films for medicines, and particularly relates to a friction-resistant composite film for medicines, which comprises a sealing layer, a buffer layer arranged at the upper end of the sealing layer, a fresh-keeping layer arranged at the upper end of the buffer layer, an aluminum foil layer arranged at the upper end of the fresh-keeping layer, and an ultraviolet-proof layer arranged at the upper end of the aluminum foil layer. A wear-resistant layer is arranged at the upper end of the ultraviolet-proof layer, a plurality of convex blocks are arranged at the top of the wear-resistant layer, the wear-resistant layer comprises a plurality of transverse crossed belts and a plurality of longitudinal crossed belts, and the transverse crossed belts and the longitudinal crossed belts are mutually crossed. By arranging the wear-resistant layer, when medicines are packaged, friction between the packaging composite film and the medicine box can be avoided, and meanwhile, the situation that the medicine packaging composite film rubs with the inner wall of a packaging box due to vibration generated in the vehicle running process in the transportation process, and consequently the packaging composite film is scratched or even damaged is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of composite films for medicines, in particular to a friction-resistant composite film for medicines. Background Art

[0002] Pharmaceutical composite film is a material used for pharmaceutical packaging. It is usually a film made of multiple materials and is mainly used to package different drugs into tablets, capsules, granules and other dosage forms. Pharmaceutical composite film can protect the drugs and extend their shelf life. It can be manufactured into composite film materials with high barrier properties according to the packaging requirements of the drugs.

[0003] In the prior art, when the composite film used for drug packaging is packaged, the packaging composite film will rub against the medicine box when the drug is packaged, and the drug packaging composite film will also rub against the inner wall of the packaging box due to the vibration caused by the vehicle during transportation, causing scratches or even damage to the outer wall of the packaging composite film, resulting in loss of drug efficacy and change in properties. Summary of the invention

[0004] The utility model aims to provide a friction-resistant composite film for medicines. A wear-resistant layer is added to the outermost layer to avoid friction between the packaging composite film and the medicine box when the medicines are packaged, and to avoid friction between the packaging composite film and the inner wall of the packaging box caused by vibration during transportation of the vehicle, thereby preventing scratches or even damage to the packaging composite film.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: comprising a sealing layer, a buffer layer is arranged on the upper end of the sealing layer, a fresh-keeping layer is arranged on the upper end of the buffer layer, an aluminum foil layer is arranged on the upper end of the fresh-keeping layer, an anti-ultraviolet layer is arranged on the upper end of the aluminum foil layer, a wear-resistant layer is arranged on the upper end of the anti-ultraviolet layer, a protrusion is arranged on the top of the wear-resistant layer, and the number of protrusions is multiple, the wear-resistant layer comprises transverse cross bands and longitudinal cross bands, and the number of transverse cross bands and longitudinal cross bands are respectively multiple, and the multiple transverse cross bands are respectively intersected with the multiple longitudinal cross bands.

[0006] Optionally, synthetic adhesive layers are provided on both sides of the bottom of the sealing layer, and circular holes are provided at the bottom of the synthetic adhesive layers, and the number of the circular holes is plural.

[0007] Optionally, the buffer layer has upper and lower surfaces each provided with semicircular grooves, and the number of the semicircular grooves is plural, and the anti-ultraviolet layer has upper and lower surfaces each provided with triangular grooves, and the number of the triangular grooves is plural.

[0008] Optionally, the sealing layer is made of polyethylene material, and the buffer layer is made of polyurethane material.

[0009] Optionally, the fresh-keeping layer is made of polyvinylidene chloride material, and the aluminum foil layer is made of annealed aluminum foil material.

[0010] Optionally, the anti-ultraviolet layer is made of zinc oxide material, and the wear-resistant layer is made of polyethylene terephthalate.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. Set a wear-resistant layer on the outermost layer. The wear-resistant layer is made of polyethylene terephthalate, which has excellent physical and mechanical properties in a wide temperature range. The long-term use temperature can reach ℃, and the electrical insulation is excellent. Even under high temperature and high frequency, its electrical properties are still good, but the corona resistance is poor. The creep resistance, fatigue resistance, friction resistance, and dimensional stability are all very good. In addition, the wear-resistant layer has multiple transverse cross-bands and multiple longitudinal cross-bands that intersect each other, which increase the ductility of the wear-resistant layer and improve the strength of the wear-resistant layer. It can avoid the friction between the packaging composite film and the medicine box when the medicine is packaged, and at the same time avoid the vibration of the drug packaging composite film during transportation due to the driving of the vehicle and the packaging The friction on the inner wall of the box causes scratches or even damage to the packaging composite film. In the prior art, the composite film used for drug packaging will rub against the medicine box when the drug is packaged, and the composite film for drug packaging will also rub against the inner wall of the packaging box due to the vibration caused by the vehicle during transportation, causing scratches or even damage to the outer wall of the packaging composite film, resulting in loss of drug efficacy and change in properties. The composite film can prevent the packaging composite film from rubbing against the medicine box when the drug is packaged, and at the same time prevent the packaging composite film from rubbing against the inner wall of the packaging box due to the vibration caused by the vehicle during transportation, causing scratches or even damage to the packaging composite film.

[0013] 2. Synthetic adhesive layers are arranged on both sides of the bottom of the sealing layer, and multiple circular holes are opened at the bottom of the synthetic adhesive layer, so that it is more labor-saving and convenient to tear the packaging composite film. At the same time, multiple semicircular grooves are opened on the upper and lower sides of the buffer layer. When the packaging composite film is subjected to external force, it can play a certain buffering and protective role. At the same time, an anti-ultraviolet layer is arranged to prevent certain components in the medicine from chemically reacting under ultraviolet radiation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1This is a schematic diagram of the three-dimensional structure of the utility model from a first viewing angle;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the wear-resistant layer of the utility model;

[0017] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the utility model from a second viewing angle.

[0019] In the figure: 1. Sealing layer; 2. Buffer layer; 3. Fresh-keeping layer; 4. Aluminum foil layer; 5. UV protection layer; 6. Wear-resistant layer; 7. Bump; 8. Horizontal cross belt; 9. Longitudinal cross belt; 10. Synthetic rubber layer; 11. Round hole; 12. Semicircular groove; 13. Triangular groove. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0022] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] Reference Figure 1-4Now, a friction-resistant composite film for medicine provided by an embodiment of the utility model is described. A friction-resistant composite film for medicine comprises a sealing layer 1, a buffer layer 2 is arranged on the upper end of the sealing layer 1, a fresh-keeping layer 3 is arranged on the upper end of the buffer layer 2, an aluminum foil layer 4 is arranged on the upper end of the fresh-keeping layer 3, an anti-ultraviolet layer 5 is arranged on the upper end of the aluminum foil layer 4, a wear-resistant layer 6 is arranged on the upper end of the anti-ultraviolet layer 5, a protrusion 7 is arranged on the top of the wear-resistant layer 6, and the number of the protrusions 7 is multiple, the wear-resistant layer 6 comprises a transverse cross band 8 and a longitudinal cross band 9, and the number of the transverse cross band 8 and the number of the longitudinal cross band 9 are multiple, and the multiple transverse cross bands 8 are mutually crossed with the multiple longitudinal cross bands 9.

[0025] A wear-resistant layer 6 is arranged on the outermost layer. The wear-resistant layer 6 is made of polyethylene terephthalate and has excellent physical and mechanical properties in a wide temperature range. The long-term use temperature can reach 120°C. The electrical insulation is excellent. Even under high temperature and high frequency, its electrical properties are still good, but the corona resistance is poor. The creep resistance, fatigue resistance, friction resistance and dimensional stability are all very good. In addition, the wear-resistant layer 6 is provided with a plurality of transverse cross bands 8 and a plurality of longitudinal cross bands 9 which intersect with each other, so as to increase the ductility of the wear-resistant layer 6 and improve the strength of the wear-resistant layer 6. This can avoid the friction between the packaging composite film and the medicine box when the medicine is packaged, and at the same time avoid the friction between the drug packaging composite film and the inner wall of the packaging box caused by the vibration of the vehicle during transportation, which may cause scratches or even damage to the packaging composite film.

[0026] In another embodiment of the present invention, please refer to Figure 4 Synthetic adhesive layers 10 are arranged on both sides of the bottom of the sealing layer 1. Round holes 11 are opened at the bottom of the synthetic adhesive layer 10, and there are multiple round holes 11, which makes it more labor-saving and convenient to tear open the packaging composite film.

[0027] In another embodiment of the present invention, please refer to Figure 1 The upper and lower surfaces of the buffer layer 2 are provided with semicircular grooves 12, and the number of the semicircular grooves 12 is respectively multiple. The upper and lower surfaces of the UV protection layer 5 are provided with triangular grooves 13, and the number of the triangular grooves 13 is respectively multiple. Multiple semicircular grooves 12 are provided on the upper and lower surfaces of the buffer layer 2. When the packaging composite film is subjected to external force, it can play a certain buffering and protective role.

[0028] In another embodiment of the present invention, please refer to Figure 1The sealing layer 1 is made of polyethylene, which is a common soft packaging material with good flexibility and wear resistance. The buffer layer 2 is made of polyurethane, which has excellent mechanical properties and strong plasticity, and can play a role in shock absorption and buffering. The fresh-keeping layer 3 is made of polyvinylidene chloride, which is an ideal packaging material with non-toxic and tasteless, high barrier and high toughness. It also has good heat shrinkage and chemical stability, as well as good printing and heat sealing properties. The aluminum foil layer 4 is made of annealed aluminum foil. Due to the high-temperature annealing treatment during the production process, it has better softness and plasticity, and also has better moisture and oxygen insulation. The anti-ultraviolet layer 5 is made of zinc oxide material, which has extremely high chemical activity and excellent catalytic and photocatalytic activity, and has anti-infrared, ultraviolet radiation and sterilization functions, and prevents certain ingredients in the medicine from chemically reacting under ultraviolet radiation. The wear-resistant layer 6 is made of polyethylene terephthalate. Polyethylene terephthalate has good strength and rigidity. It also has good wear resistance, impact resistance and crack resistance, which makes the products made of PET polyester have high durability. Polyethylene terephthalate can withstand high temperatures and has good thermal stability. Polyethylene terephthalate can withstand the corrosion of many solvents and chemicals.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A friction-resistant composite film for pharmaceuticals, comprising a sealing layer (1), characterized in that: A buffer layer (2) is arranged at the upper end of the sealing layer (1), a fresh-keeping layer (3) is arranged at the upper end of the buffer layer (2), an aluminum foil layer (4) is arranged at the upper end of the fresh-keeping layer (3), an ultraviolet protection layer (5) is arranged at the upper end of the aluminum foil layer (4), a wear-resistant layer (6) is arranged at the upper end of the ultraviolet protection layer (5), a protrusion (7) is arranged at the top of the wear-resistant layer (6), and the number of the protrusions (7) is multiple, the wear-resistant layer (6) includes a transverse cross band (8) and a longitudinal cross band (9), and the number of the transverse cross band (8) and the number of the longitudinal cross band (9) are respectively multiple, and the multiple transverse cross bands (8) are mutually crossed with the multiple longitudinal cross bands (9).

2. The friction-resistant composite film for medicines according to claim 1, characterized in that: Synthetic adhesive layers (10) are provided on both sides of the bottom of the sealing layer (1), and circular holes (11) are provided at the bottom of the synthetic adhesive layer (10), and the number of the circular holes (11) is multiple.

3. The friction-resistant composite film for medicines according to claim 1, characterized in that: The upper and lower surfaces of the buffer layer (2) are both provided with semicircular grooves (12), and the number of the semicircular grooves (12) is respectively plural. The upper and lower surfaces of the anti-ultraviolet layer (5) are both provided with triangular grooves (13), and the number of the triangular grooves (13) is respectively plural.

4. The friction-resistant composite film for medicines according to claim 1, characterized in that: The sealing layer (1) is made of polyethylene material, and the buffer layer (2) is made of polyurethane material.

5. The friction-resistant composite film for medicines according to claim 1, characterized in that: The fresh-keeping layer (3) is made of polyvinylidene chloride material, and the aluminum foil layer (4) is made of annealed aluminum foil material.

6. The friction-resistant composite film for medicines according to claim 5, characterized in that: The anti-ultraviolet layer (5) is made of zinc oxide material, and the wear-resistant layer (6) is made of polyethylene terephthalate.

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