CN211968710U - Cigarette inner packaging film - Google Patents
Cigarette inner packaging film Download PDFInfo
- Publication number
- CN211968710U CN211968710U CN201922364992.7U CN201922364992U CN211968710U CN 211968710 U CN211968710 U CN 211968710U CN 201922364992 U CN201922364992 U CN 201922364992U CN 211968710 U CN211968710 U CN 211968710U
- Authority
- CN
- China
- Prior art keywords
- layer
- packaging film
- cigarette
- inner packaging
- adhesive label
- 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
Images
Landscapes
- Laminated Bodies (AREA)
Abstract
The utility model discloses a cigarette inner packaging film, include: the inner packaging film body and the adhesive label layer; the inner packaging film body comprises an outer layer, an inner layer and a middle layer arranged between the outer layer and the inner layer; the outer layer and the inner layer are polypropylene films formed by biaxial stretching; the middle layer is aluminum foil; the self-adhesive label layer is die-cut and adhered to one side of the inner layer far away from the middle layer. The inner packaging film body and the adhesive label layer both comprise an adjusting sheet and a fixing sheet, the adjusting sheet is arranged in the middle of the fixing sheet, and one side of the adjusting sheet is fixedly connected with the fixing sheet; the side length or the diameter of the adjusting sheet on the self-adhesive label layer is smaller than that of the adjusting sheet on the inner packaging film body. Through the mode, the utility model can improve the barrier property of the cigarette inner packaging film, and effectively play the roles of fragrance and moisture protection; through the design of two windows of different sizes, can realize that the inboard pastes the mark outside and open, make things convenient for the consumer to use.
Description
Technical Field
The utility model relates to a packaging film technical field especially relates to a cigarette inner packaging film.
Background
At present, small cigarette envelope and strip envelope in China are developed well, and inner packaging films of small cigarette envelopes are not common. The current cigarette inner package in China adopts lining paper, and the lining paper commonly used comprises aluminized lining paper, coated lining paper and composite aluminum foil lining paper. The aluminized lining paper and the coated lining paper have the advantages that the moisture and oxygen permeability of the package is large because the paper fibers easily absorb water vapor, the composite aluminum foil lining paper is low, but the three lining papers do not have sealing performance during packaging, and the contribution to the moisture retention and aroma retention performance of the cigarette is low. In appearance, the coated lining paper is lack of metal feeling and is not suitable for embossing treatment; the printing adaptability of vacuum direct plating lining paper is poor, and printing and laser processing are rarely carried out; the composite aluminum foil lining paper has the advantages of optimal appearance and printing performance and relatively high cost.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a cigarette inner packaging film, can improve cigarette package's the fragrant performance of keeping moisture to the window is opened in the setting, is convenient for open and gets the cigarette.
In order to achieve the above object, the technical solution of the present invention is:
a cigarette inner wrap film comprising: the inner packaging film body and the adhesive label layer; the inner packaging film body comprises an outer layer, an inner layer and a middle layer arranged between the outer layer and the inner layer; the outer layer and the inner layer are polypropylene films formed by biaxial stretching; the middle layer is an aluminum foil; the self-adhesive label layer is die-cut and adhered to one side of the inner layer, which is far away from the middle layer.
The aluminum foil layer is arranged in the cigarette inner packaging film, so that the barrier property of the cigarette inner packaging film is greatly improved, and the effects of keeping fragrance and preventing moisture can be effectively achieved. The special design is adopted for the opening mode of the inner packaging film, the adhesive sticker label which can be repeatedly opened is placed on the inner side of the film, through the design of two windows with different sizes, the inner side is pasted with the label and the outer side is opened, and the use of consumers is facilitated.
Preferably, the inner packaging film body and the adhesive label layer both comprise an adjusting sheet and a fixing sheet, the adjusting sheet is arranged in the middle of the fixing sheet, and one side of the adjusting sheet is fixedly connected with the fixing sheet; the side length or the diameter of the adjusting sheet on the self-adhesive label layer is smaller than that of the adjusting sheet on the inner packaging film body.
Preferably, the adjusting sheet and the fixing sheet are integrally formed.
Preferably, the outer layer has a coefficient of friction less than the coefficient of friction of the inner layer.
Preferably, the heat sealing strength of the outer layer is more than or equal to 3.0N/15mm, and the friction coefficient of the outer layer is 0.1-0.45.
Preferably, the heat sealing strength of the inner layer is more than or equal to 3.0N/15mm, and the friction coefficient of the inner layer is 0.15-0.45.
Preferably, the thickness of the outer layer and the thickness of the inner layer are both 12-30 μm.
Drawings
Fig. 1 is a schematic structural view of the cigarette inner packaging film of the present invention.
Fig. 2 is a schematic structural view of the inner packaging film body in the cigarette inner packaging film of the present invention.
Fig. 3 is a schematic structural diagram of the cigarette inner packaging film of the present invention applied to a cigarette case.
Description of reference numerals: the inner packaging film comprises an inner packaging film body 1, an outer layer 11, a middle layer 12, an inner layer 13, a heat sealing layer 131, a core layer 132, a printing layer 133, a self-adhesive label layer 2, an adjusting sheet 21 and a fixing sheet 22.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to the drawings, a cigarette inner wrap film comprises: an inner packaging film body 1 and a self-adhesive label layer 2. The inner packaging film body 1 includes an outer layer 11, an inner layer 13, and an intermediate layer 12 disposed between the outer layer 11 and the inner layer 13. The outer layer 11 and the inner layer 13 are biaxially oriented polypropylene films. The middle layer 12 is an aluminum foil, the thickness of the aluminum foil can be adjusted according to actual needs, and the cigarette inner packaging film has good separation performance through the middle layer 12, so that the effects of fragrance preservation and moisture prevention are achieved. The adhesive label layer 2 with the die-cut small window is adhered to one side of the inner layer 13, which is far away from the middle layer 12, the material of the adhesive label layer 2 is adhesive and thin film, and the adhesive label layer 2 can be opened for many times, which is similar to the opening mode of wet tissues.
The outer layer 11 and the inner layer 13 are printable biaxially oriented polypropylene films, have good heat sealing performance and can meet the packaging requirements of cigarette packaging machines. The thickness of the outer layer 11 and the inner layer 13 is 12-30 mu m, the outer layer 11 and the inner layer 13 are of a three-layer co-extrusion structure, and the main components are polypropylene homopolymer, polypropylene copolymer, anti-blocking agent and slipping agent.
Inner packaging film body 1 and non-setting adhesive label layer 2 all include adjustment sheet and stationary blade, and adjustment sheet 21 sets up the intermediate position at stationary blade 22, one side and stationary blade 22 fixed connection of adjustment sheet 21. The adjusting sheet 21 and the fixing sheet 22 are integrally formed. Namely, a cigarette taking window is formed on the inner packaging film body 1 and the adhesive label layer 2 through the adjusting sheet and the fixing sheet. The utility model discloses do not restrict the concrete shape of adjustment sheet, can be square, circular, triangle-shaped etc. and the shape of getting cigarette window can be "コ", ">", etc..
The side length or the diameter of the adjusting sheet on the self-adhesive label layer 2 is smaller than that of the adjusting sheet on the inner packaging film body 1, namely the size of the cigarette taking window formed on the self-adhesive label layer 2 is smaller than that of the cigarette taking window formed on the inner packaging film body 1, so that two windows with different sizes are formed, and the function of opening the label at the inner side and the outer side of the inner packaging film is realized. The adjusting sheet 21 on the self-adhesive label layer 2 is used for sticking and labeling, and the part of the adjusting sheet on the inner packaging film body 1, which is more than the adjusting sheet 21 on the self-adhesive label layer 2, is used for opening.
The outer layer 11 and the inner layer 13 have good heat sealing performance, the heat sealing strength of the outer layer 11 is more than or equal to 3.0N/15mm, the heat sealing temperature of the outer layer 11 is 90-120 ℃, and the friction coefficient of the outer layer 11 is 0.1-0.45. The heat sealing strength of the inner layer 13 is more than or equal to 3.0N/15mm, the heat sealing temperature of the inner layer 13 is 90-120 ℃, and the friction coefficient of the inner layer 13 is 0.15-0.45. The friction coefficient of the outer layer 11 is smaller than that of the inner layer 13, so that the rapid packaging requirement of the cigarette packaging machine is met.
The outer layer 11 and the inner layer 13 are of a three-layer co-extrusion structure, and the outer layer 11 and the inner layer 13 sequentially comprise a heat sealing layer 131, a core layer 132 and a printing layer 133 from the direction far away from the middle layer 12 to the direction close to the middle layer 12. The heat sealing layer 131 comprises a polypropylene copolymer, an anti-blocking agent and a slipping agent, and the thickness of the heat sealing layer 131 is 0.2-2.0 mu m; the core layer 132 is polypropylene homopolymer, and the thickness of the core layer 132 is 10-26 μm; the printing layer 133 comprises polypropylene homopolymer, polypropylene copolymer, anti-blocking agent and slipping agent, and the thickness of the printing layer 133 is 0.2-2.0 μm. The anti-blocking agent is one or more of synthetic silica or hydrated silicate.
The heat sealing layer 131 provides heat sealing performance and has low heat sealing temperature, and meanwhile, the friction coefficient is kept low, so that the heat sealing layer has very good heat sealing performance and is suitable for a rapid packaging machine; the thickness of the core layer 132 can be adjusted as desired; the inner surface is a printed layer 133, so that the outer layer 11 and the inner layer 13 have printability, and a user can print corresponding patterns according to the needs of the user. The difference between the film and the common printing BOPP is that the outer surface has good heat sealing performance and the friction coefficient is lower than that of the common printing film.
The preparation method of the cigarette inner packaging film comprises the following steps:
respectively mixing the raw materials of the heat-sealing layer, the core layer and the printing layer, and respectively stirring uniformly;
respectively conveying the mixed raw materials to three melt extruders, wherein the temperature of the extruders is 200-250 ℃, making into a thick sheet through a three-layer co-extrusion die head, and cooling by a chill roll and cooling water to form a first semi-finished product;
conveying the first semi-finished product to a longitudinal stretcher, preheating and longitudinally stretching the first semi-finished product by a preheating roller at the temperature of 90-105 ℃, wherein the stretching multiple of the longitudinal stretching is 6-8, and forming the second semi-finished product by a shaping roller;
conveying the second semi-finished product to a transverse stretcher, preheating at 135-150 ℃, transversely stretching at 115-135 ℃ after preheating, wherein the stretching multiple of transverse stretching is 5-6, and shaping at 120-130 ℃ after transverse stretching to form a third semi-finished product;
carrying out single-side corona treatment on the third semi-finished product by corona equipment, and then rolling to form an outer layer and an inner layer;
the outer layer and the inner layer are compounded with the middle layer of the aluminum foil twice, the compounding mode adopts solvent-free compounding or dry compounding, the compound glue adopts one or more of polyurethane adhesives, vinyl acetate adhesives and vinyl acetate copolymer adhesives, the curing time is 24-48 hours, and the curing temperature is 40-50 ℃. Forming an inner packaging film body after compounding, wherein the peeling strength of the inner packaging film body can reach more than 0.8N/15 mm;
and die-cutting an adjusting sheet and a fixing sheet on the adhesive label layer to form a small window. The self-adhesive label layer with the die-cut small window is adhered to the inner layer of the inner packaging film body, the inner packaging film body and the self-adhesive label layer are die-cut to form the large window, the size of the large window is larger than that of the small window, the large window can be die-cut according to the shapes of コ, F, G and the like, and the large window and the small window form an outer opening window.
The utility model discloses a according to the utility model provides a three group's experiments have been made to raw materials and preparation method, are embodiment one, embodiment two and embodiment three respectively, and its main index is shown as table 1, and the raw materials component of outer layer and inlayer is shown as table 2 in embodiment one, embodiment two and embodiment three.
TABLE 1 Main indices of three groups of examples
TABLE 2 raw material composition of outer and inner layers in the inner packaging film body
The three above-mentioned group of embodiment films all can regard as the outer or inlayer use of inner packaging film body, pass through the film of above-mentioned embodiment one, embodiment two and embodiment three respectively with the intermediate level aluminium foil the utility model discloses a preparation method makes cigarette inner packaging film body, wholly detects its coefficient of friction, heat-seal temperature, heat-seal strength, separation nature, and wherein, separation nature is verified through oxygen transmission rate and water vapor transmission rate, and the testing result that obtains is shown as table 3, table 4 and table 5 respectively.
The three groups of examples were prepared as follows:
the first embodiment is as follows:
93 wt% of polypropylene copolymer with melt index of 5.0-5.7, 5 wt% of silicon dioxide and 2 wt% of silicone oil are mixed and stirred uniformly to be used as raw materials of a printing layer and a heat sealing layer, and polypropylene homopolymer with melt index of 3.0-3.8 is stirred uniformly to be used as raw materials of a core layer.
And respectively conveying the mixed raw materials to three melt extruders, wherein the temperature of the extruders is 210 ℃, making the raw materials into thick sheets through a three-layer co-extrusion die head, and cooling the thick sheets through a chill roll and cooling water to form a first semi-finished product.
Conveying the first semi-finished product to a longitudinal stretcher, preheating and longitudinally stretching the first semi-finished product by a preheating roller at the temperature of 95 ℃, wherein the stretching multiple of the longitudinal stretching is 6, and forming the first semi-finished product by a shaping roller;
and (3) conveying the second semi-finished product to a transverse stretcher, preheating at 135 ℃, transversely stretching at 120 ℃ after preheating, wherein the stretching multiple of the transverse stretching is 5, and shaping at 120 ℃ after transverse stretching to form a third semi-finished product.
And carrying out single-side corona treatment on the third semi-finished product by corona equipment, and then rolling to form an outer layer and an inner layer.
The outer layer and the inner layer are compounded with the middle layer of the aluminum foil twice, the compounding mode adopts solvent-free compounding or dry compounding, the compound glue adopts one or more of polyurethane adhesives, vinyl acetate adhesives and vinyl acetate copolymer adhesives, the curing time is 24 hours, and the curing temperature is 40 ℃. The inner packaging film body is formed after compounding, and the peeling strength of the inner packaging film body can reach more than 0.8N/15 mm.
And die-cutting an adjusting sheet and a fixing sheet on the adhesive label layer to form a small window. The self-adhesive label layer with the die-cut small window is adhered to the inner layer of the inner packaging film body, the inner packaging film body and the self-adhesive label layer are die-cut to form the large window, the size of the large window is larger than that of the small window, the large window can be die-cut according to the shape of コ, and the large window and the small window form an outer opening window.
Example two:
mixing and uniformly stirring 80 wt% of polypropylene copolymer with melt index of 5.0-5.7, 13 wt% of polypropylene terpolymer, 13 wt% of silicon dioxide and 2 wt% of silicone oil to obtain a raw material of a printing layer, mixing and uniformly stirring 93 wt% of polypropylene copolymer with melt index of 5.0-5.7, 5 wt% of silicon dioxide and 2 wt% of silicone oil to obtain a raw material of a heat sealing layer, and uniformly stirring 3.0-3.8 wt% of polypropylene homopolymer to obtain a raw material of a core layer.
And respectively conveying the mixed raw materials to three melt extruders, wherein the temperature of the extruders is 220 ℃, making into a thick sheet through a three-layer co-extrusion die head, and cooling by a chill roll and cooling water to form a first semi-finished product.
And (3) conveying the first semi-finished product to a longitudinal stretcher, preheating and longitudinally stretching the first semi-finished product by a preheating roller at the temperature of 100 ℃, wherein the stretching multiple of the longitudinal stretching is 7, and forming the second semi-finished product by a shaping roller.
And (3) conveying the second semi-finished product to a transverse stretcher, preheating at 140 ℃, transversely stretching at 125 ℃ after preheating, wherein the stretching ratio of transverse stretching is 6, and shaping at 125 ℃ after transverse stretching to form a third semi-finished product.
And carrying out single-side corona treatment on the third semi-finished product by corona equipment, and then rolling to form an outer layer and an inner layer.
The outer layer and the inner layer are compounded with the middle layer of the aluminum foil twice, the compounding mode adopts solvent-free compounding or dry compounding, the compound glue adopts one or more of polyurethane adhesives, vinyl acetate adhesives and vinyl acetate copolymer adhesives, the curing time is 36 hours, and the curing temperature is 45 ℃. The inner packaging film body is formed after compounding, and the peeling strength of the inner packaging film body can reach more than 0.8N/15 mm.
And die-cutting an adjusting sheet and a fixing sheet on the adhesive label layer to form a small window. And (3) sticking the adhesive label layer with the die-cut small window on the inner layer of the inner packaging film body, carrying out die cutting on the inner packaging film body and the adhesive label layer to form a large window, wherein the size of the large window is larger than that of the small window, the large window can be die-cut according to the shape of', and the large window and the small window form an outer opening window.
Example three:
mixing and uniformly stirring 80 wt% of polypropylene copolymer, 10 wt% of polypropylene terpolymer, 5 wt% of silicon dioxide and 5 wt% of silicone oil to obtain a raw material of a printing layer, mixing and uniformly stirring 93 wt% of polypropylene copolymer, 5.0-5.7 wt% of silicon dioxide and 2 wt% of silicone oil to obtain a raw material of a heat sealing layer, and uniformly stirring 3.0-3.8 wt% of polypropylene homopolymer to obtain a raw material of a core layer.
And respectively conveying the mixed raw materials to three melt extruders, wherein the temperature of the extruders is 240 ℃, making the mixture into a thick sheet through a three-layer co-extrusion die head, and cooling the thick sheet through a chill roll and cooling water to form a first semi-finished product.
And (3) conveying the first semi-finished product to a longitudinal stretcher, preheating and longitudinally stretching the first semi-finished product at 105 ℃ by a preheating roller, wherein the stretching multiple of the longitudinal stretching is 8, and forming the second semi-finished product by a shaping roller.
And (3) conveying the second semi-finished product to a transverse stretcher, preheating at 150 ℃, transversely stretching at 135 ℃ after preheating, wherein the stretching ratio of transverse stretching is 6, and shaping at 130 ℃ after transverse stretching to form a third semi-finished product.
And carrying out single-side corona treatment on the third semi-finished product by corona equipment, and then rolling to form an outer layer and an inner layer.
The outer layer and the inner layer are compounded with the middle layer of the aluminum foil twice, the compounding mode adopts solvent-free compounding or dry compounding, the compound glue adopts one or more of polyurethane adhesives, vinyl acetate adhesives and vinyl acetate copolymer adhesives, the curing time is 48 hours, and the curing temperature is 50 ℃. The inner packaging film body is formed after compounding, and the peeling strength of the inner packaging film body can reach more than 0.8N/15 mm.
And die-cutting an adjusting sheet and a fixing sheet on the adhesive label layer to form a small window. And (3) sticking the self-adhesive label layer with the die-cut small window on the inner layer of the inner packaging film body, carrying out die cutting on the inner packaging film body and the self-adhesive label layer to form a large window, wherein the size of the large window is larger than that of the small window, the large window can be die-cut according to the shape of the large window, and the large window and the small window form an outer opening window.
Table 3 inspection results of the inner wrap film obtained in example one
Table 4 test results of the inner wrap film obtained in example two
Table 5 examination results of the inner wrap film obtained in example III
The body films made of films with different properties in the three groups of embodiments have different friction coefficients and heat sealing temperatures so as to adapt to cigarette film packaging machines with different speeds. The packaging film is smoother in appearance, can adapt to various processing technologies such as laser and gold stamping due to the fact that the packaging film is made of thin film materials, and is richer in appearance patterns.
And simultaneously testing and evaluating the barrier property of the body film, and comparing the barrier property with the barrier property of the conventional cigarette inner wrapping paper. The oxygen transmission rate of the conventional cigarette inner packaging paper is more than 500, the water vapor transmission rate is more than 1000, and along with the prolonging of the shelf life, the paper absorbs water vapor in the air, and the barrier property is rapidly reduced, so that the quality guarantee and the taste of the cigarette are influenced. The composite film with the three body structures has oxygen transmission rate and water vapor transmission rate below 0.1 and stable barrier property, so that the shelf life of the cigarette can be prolonged and the cigarette is not affected by regions.
The body film is formed by compounding the three types of films with different properties, the self-adhesive label with the small die-cut window is adhered to the inner layer of the body, the die-cut is carried out on the outer layer of the body at the corresponding position to form the large outer opening window, so that the opening window of the cigarette inner packaging film is formed, and after the cigarette is taken out, the inner side of the window can be adhered and closed due to the existence of the self-adhesive, so that the sealing effect is realized.
The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (7)
1. A cigarette inner wrap film, comprising: the inner packaging film body and the adhesive label layer; the inner packaging film body comprises an outer layer, an inner layer and a middle layer arranged between the outer layer and the inner layer; the outer layer and the inner layer are polypropylene films formed by biaxial stretching; the middle layer is an aluminum foil; the self-adhesive label layer is die-cut and adhered to one side of the inner layer, which is far away from the middle layer.
2. A cigarette inner wrap film according to claim 1, wherein: the inner packaging film body and the adhesive label layer respectively comprise an adjusting sheet and a fixing sheet, the adjusting sheet is arranged in the middle of the fixing sheet, and one side of the adjusting sheet is fixedly connected with the fixing sheet; the side length or the diameter of the adjusting sheet on the self-adhesive label layer is smaller than that of the adjusting sheet on the inner packaging film body.
3. A cigarette inner wrap film according to claim 2, wherein: the adjusting sheet and the fixing sheet are integrally formed.
4. A cigarette inner wrap film according to claim 1, wherein: the outer layer has a coefficient of friction less than the coefficient of friction of the inner layer.
5. A cigarette inner wrap film according to claim 1, wherein: the heat seal strength of the outer layer is more than or equal to 3.0N/15mm, and the friction coefficient of the outer layer is 0.1-0.45.
6. A cigarette inner wrap film according to claim 1, wherein: the heat seal strength of the inner layer is more than or equal to 3.0N/15mm, and the friction coefficient of the inner layer is 0.15-0.45.
7. A cigarette inner wrap film according to claim 1, wherein: the thickness of the outer layer and the inner layer is 12-30 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922364992.7U CN211968710U (en) | 2019-12-25 | 2019-12-25 | Cigarette inner packaging film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922364992.7U CN211968710U (en) | 2019-12-25 | 2019-12-25 | Cigarette inner packaging film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211968710U true CN211968710U (en) | 2020-11-20 |
Family
ID=73378309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922364992.7U Active CN211968710U (en) | 2019-12-25 | 2019-12-25 | Cigarette inner packaging film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211968710U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111002666A (en) * | 2019-12-25 | 2020-04-14 | 苏州昆岭薄膜工业有限公司 | Cigarette inner packaging film and preparation method thereof |
| CN113148426A (en) * | 2021-03-24 | 2021-07-23 | 丝艾（合肥）包装材料有限公司 | Sealing sheet for tobacco packaging and processing method thereof |
| CN113148436A (en) * | 2021-03-24 | 2021-07-23 | 丝艾（合肥）包装材料有限公司 | Manual easy-to-open lining film for tobacco package and processing method thereof |
-
2019
- 2019-12-25 CN CN201922364992.7U patent/CN211968710U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111002666A (en) * | 2019-12-25 | 2020-04-14 | 苏州昆岭薄膜工业有限公司 | Cigarette inner packaging film and preparation method thereof |
| CN113148426A (en) * | 2021-03-24 | 2021-07-23 | 丝艾（合肥）包装材料有限公司 | Sealing sheet for tobacco packaging and processing method thereof |
| CN113148436A (en) * | 2021-03-24 | 2021-07-23 | 丝艾（合肥）包装材料有限公司 | Manual easy-to-open lining film for tobacco package and processing method thereof |
| CN113148436B (en) * | 2021-03-24 | 2022-07-29 | 丝艾（合肥）包装材料有限公司 | Manual easy-to-open lining film for tobacco package and processing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211968710U (en) | Cigarette inner packaging film | |
| CN111002666A (en) | Cigarette inner packaging film and preparation method thereof | |
| CA2556466C (en) | Cohesive coating for snack food packaging | |
| US4048736A (en) | Laminated composite sheet packaging material | |
| EP0299520B1 (en) | Packaging materials | |
| CA1313935C (en) | Monoaxial shrink film | |
| CN109263211B (en) | High-transparency high-barrier easy-to-tear-off cover film and production process thereof | |
| CN102514329B (en) | Polyethylene film with resealing function and preparation method thereof | |
| CN104015443B (en) | A kind of flexible color printing compound package material and production technology thereof | |
| CN111703170B (en) | Self-supporting bag packaging material capable of being torn and opened linearly and preparation method thereof | |
| CA2438280A1 (en) | Failure-resistant receptacle and method of manufacture | |
| CA2226770C (en) | Polymeric films | |
| WO2019067005A1 (en) | Packaging material with matte and glossy appearance, and cold seal adhesive | |
| JP2004122374A (en) | Tape | |
| JP5055673B2 (en) | Heat shrinkable adhesive film | |
| CN114132640B (en) | Label type lining for cigarette box and preparation method thereof | |
| JPS5822134A (en) | Easily adherent polypropylene film | |
| CN113427839A (en) | Composite film bag and preparation method thereof | |
| CN114311903A (en) | Label type lining film for cigarette box packaging and preparation method and application thereof | |
| CN220430960U (en) | Low-odor packaging bag | |
| JP2010208684A (en) | Package | |
| JP4472800B2 (en) | Cheese packaging film | |
| CN205705611U (en) | A kind of solvent-free embossing vacuum bag and the volume bag of making thereof | |
| CN114889266B (en) | PETG curtain coating membrane | |
| JPS6259037A (en) | Heat-shrinkable laminated packaging material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |