An oil-proof tipping paper

Abstract

This invention provides an oil-resistant tipping paper, belonging to the technical field of tipping paper. The oil-resistant tipping paper includes a tipping paper base layer and an aluminum foil separator. The aluminum foil separator is folded in an "S" shape to form open structures at both ends, ensuring that the openings are mutually isolated. One end of the first tipping paper base layer and one end of the second tipping paper base layer are respectively inserted into the two openings, allowing the aluminum foil separator to connect the first and second tipping paper base layers to form an integral structure, meeting the requirements of cigarette manufacturing. Furthermore, the aluminum foil separator achieves complete isolation between the ends of the first and second tipping paper base layers, simultaneously meeting oil resistance and flame retardant requirements, reducing the stacking of functional layers, simplifying the processing technology, and improving processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cork paper technology, specifically to an oil-resistant cork paper. Background Technology

[0002] Tipping paper, as an outer packaging material for cigarettes, can be used for the part that comes into direct contact with the user's lips. It is usually used to wrap the filter of the cigarette holder, serving to connect the tobacco body and the cigarette holder.

[0003] Currently, marketable tipping paper is divided into two types: low-to-mid-grade and high-grade. Low-to-mid-grade tipping paper has a simpler structure with fewer functional layers, consisting only of a basic tipping paper base and a hot stamping layer on top, serving only to connect the tobacco body and the cigarette holder, as well as for decoration. High-grade tipping paper, on the other hand, has more functional layers. For example, the high oil-resistant tipping paper for menthol cigarettes disclosed in patent CN215531549U connects the lower end of its second adhesive layer to the side wall of the cigarette holder with strong adhesive. A flame-retardant layer is fixedly connected to the upper end of the second adhesive layer, a first adhesive layer is fixedly connected to the upper end of the flame-retardant layer, a breathable layer is fixedly connected to the upper end of the first adhesive layer, a heat insulation layer is fixedly connected to the upper end of the breathable layer, an oil-resistant layer is fixedly connected to the upper end of the heat insulation layer, and a waterproof layer is set above the oil-resistant layer, giving it excellent oil and water resistance. At the same time, it also prevents the cigarette butt from continuing to burn, reducing the risk of fire. While the aforementioned high-grade tipping paper can absorb oil, be waterproof, and flame-retardant, this requires the bonding of multiple functional layers. Each layer serves a different purpose, making the process difficult, time-consuming, and inefficient. Furthermore, most of the tar produced during tobacco combustion is filtered out by the filter element in the mouthpiece. However, some tar diffuses through the tipping paper surrounding the filter element to the area in contact with the user's mouth and enters the mouthpiece from the ends of the tipping paper. Although an oil-resistant layer has been disclosed to prevent oil diffusion, it is only an internal layer and cannot completely seal the ends of the tipping paper, resulting in a less than ideal oil-resistant effect. Summary of the Invention

[0004] To address the aforementioned problems in the existing technology, this invention aims to provide an oil-resistant tipping paper. By incorporating an S-shaped folded aluminum foil separator, and connecting the two ends of the aluminum foil separator to two tipping paper base layers respectively, the two tipping paper base layers are connected into a whole. The aluminum foil separator between the two base layers completely blocks the spread of tar from one end of the tipping paper to the other, thus improving the oil-resistant effect and achieving flame retardancy, making it more comprehensive in function.

[0005] The specific technical solution is as follows: An oil- and water-resistant paperboard has the following characteristics: The water-tip paper base layer includes a first water-tip paper base layer and a second water-tip paper base layer. The aluminum foil separator is folded in an "S" shape to form an open structure at both ends, and the two openings are completely isolated from each other. One end of the first water-pressed paper base layer is inserted into the opening at one end of the aluminum foil separator, and one end of the second water-pressed paper base layer is inserted into the opening at the other end of the aluminum foil separator. The other ends of the first water-pressed paper base layer and the other ends of the second water-pressed paper base layer extend towards opposite sides, and the length of the second water-pressed paper base layer is greater than the length of the first water-pressed paper base layer.

[0006] In the aforementioned type of oil-resistant cork paper, the first cork paper base layer, the second cork paper base layer, and the aluminum foil separator are all connected by extrusion.

[0007] In the aforementioned type of oil-resistant cork paper, the ends of the first cork paper base layer and the second cork paper base layer inserted into the opening of the aluminum foil separator are provided with recessed anti-slip holes, and the wall of the opening of the aluminum foil separator is deformed and pressed into the anti-slip holes.

[0008] In the aforementioned type of oil- and water-resistant cork paper, the openings at both ends of the aluminum foil separator are filled with adhesive.

[0009] In the aforementioned type of oil-resistant cork paper, a pattern is provided on the outer surface of the wall that forms a corresponding opening at the end of the aluminum foil separator that mates with the first cork paper base layer.

[0010] In the aforementioned oil-resistant cork paper, a heat-insulating layer is covered on the surfaces of the first cork paper base layer and the second cork paper base layer, both located on the same side.

[0011] The aforementioned oil-resistant cork paper further includes a filling layer, which is disposed on the side of the second cork paper base layer away from the heat insulation layer.

[0012] In the aforementioned type of oil-resistant cork paper, the filling layer is one of the following: cork paper base layer, base paper layer, and breathable layer.

[0013] In the aforementioned type of oil-proof and water-resistant cork paper, a waterproof layer is also provided on the first cork paper base layer and the second cork paper base layer, on the side opposite to where the heat insulation layer is provided.

[0014] In the aforementioned type of oil-proof and water-resistant cork paper, the first cork paper base layer, on the side with a heat-insulating layer, is wrapped around the outer side of the outer wrapping paper of the tobacco body.

[0015] The positive effects of the above technical solution are: The aforementioned oil-resistant tipping paper consists of two separate tipping paper layers: a first tipping paper base layer and a second tipping paper base layer. An aluminum foil separator is placed between the two layers. The aluminum foil separator is folded into an "S" shape to form a structure with openings at both ends. One end of the first tipping paper base layer and one end of the second tipping paper base layer are inserted into the two openings respectively. The aluminum foil separator connects the first and second tipping paper base layers to form an integral structure that meets the requirements of cigarette manufacturing. At the same time, the aluminum foil separator also completely isolates the ends of the first and second tipping paper base layers, thus meeting both oil resistance and flame retardancy requirements. Furthermore, it eliminates the need for additional multi-layer functional layers, making the processing technology simple, easy to implement, more efficient, and faster. Attached Figure Description

[0016] Figure 1 This is a structural diagram of an embodiment of the oil- and water-resistant paper of this utility model; Figure 2 This is a cross-sectional view of an oil- and water-resistant paper used in this invention to form cigarettes.

[0017] In the attached diagram: 1. Tipping paper base layer; 11. First tipping paper base layer; 12. Second tipping paper base layer; 111. Anti-slip hole; 2. Aluminum foil separator; 21. Opening; 3. Adhesive; 4. Pattern; 5. Heat insulation layer; 6. Filling layer; 7. Waterproof layer; 8. Tobacco body; 81. Outer wrapping paper; 9. Filter element. Detailed Implementation

[0018] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following embodiments are provided in conjunction with the appendix. Figure 1 To be continued Figure 2 The technical solution provided by this utility model is described in detail, but the following content is not intended to limit this utility model.

[0019] Figure 1 This is a structural diagram of an embodiment of the oil- and water-resistant paperboard of this utility model. Figure 1 As shown, the oil-resistant cork paper provided in this embodiment includes: cork paper base layer 1 and aluminum foil separator 2.

[0020] Specifically, the tipping paper base layer 1 includes a first tipping paper base layer 11 and a second tipping paper base layer 12, which provides the conditions for subsequent splicing to form tipping paper of a certain length to wrap the filter core 9 and connect the tobacco body 8.

[0021] Specifically, the aluminum foil separator 2 is folded in an "S" shape to form a structure with openings 21 at both ends, and the openings 21 at both ends are completely isolated from each other, ensuring that the openings 21 at both ends of the aluminum foil separator 2 are independent of each other and arranged in two completely opposite directions. Simultaneously, one end of the first tipping paper base layer 11 is inserted into the opening 21 at one end of the aluminum foil separator 2, and one end of the second tipping paper base layer 12 is inserted into the opening 21 at the other end of the aluminum foil separator 2. Furthermore, the other ends of the first tipping paper base layer 11 and the second tipping paper base layer 12 extend towards opposite sides, respectively. That is, the aluminum foil separator 2 can connect the first tipping paper base layer 11 and the second tipping paper base layer 12 to form an integral structure that meets the requirements of cigarettes. At the same time, it can also completely isolate the ends of the first tipping paper base layer 11 and the second tipping paper base layer 12, preventing tar from spreading from one end of the tipping paper to the other end, resulting in better oil resistance. That is, while ensuring high oil resistance, there is no need to set an oil resistance layer. In addition, when the tobacco burns to the filter tip, the aluminum foil separator 2 can form a barrier to achieve the purpose of flame retardancy at the filter tip, eliminating the need for a separate flame retardant layer. This reduces the stacking of functional layers of tipping paper, simplifies the processing technology, improves processing efficiency, and shortens processing time.

[0022] Figure 2 This is a cross-sectional view of the oil- and water-resistant paper used in this invention during cigarette making. Figure 1 and Figure 2 As shown, the length of the second tipping paper base layer 12 is greater than the length of the first tipping paper base layer 11. When making cigarettes, the first tipping paper base layer 11 is wrapped around the outer side of the outer wrapping paper 81 of the tobacco body 8, while the second tipping paper base layer 12 is wrapped around the outer side of the filter element 9. This not only achieves the connection with the tobacco body 8, but also forms a filter tip with the filter element 9. At this time, the distance between the aluminum foil separator 2 and the tobacco body 8 is closer, and the distance between it and the user's mouth is farther, providing a larger contact area for the user's mouth and making it more convenient to smoke.

[0023] More specifically, the first water-pressed paper base layer 11, the second water-pressed paper base layer 12, and the aluminum foil separator 2 are all connected by extrusion. That is, when the first water-pressed paper base layer 11 and the second water-pressed paper base layer 12 are respectively inserted into the openings 21 at both ends of the aluminum foil separator 2, a pressure roller rolls over the aluminum foil separator 2. The pressure roller presses the two openings 21 of the aluminum foil separator 2 together with the first water-pressed paper base layer 11 and the second water-pressed paper base layer 12 respectively, ensuring that the three can be stably connected. In addition, it can also prevent the problem of excessive thickness at the aluminum foil separator 2 after the three are combined, making the structural design more reasonable.

[0024] More specifically, the ends of the first cork paper base layer 11 and the second cork paper base layer 12 that are inserted into the opening 21 of the aluminum foil separator 2 are provided with recessed anti-slip holes 111. After the wall of the opening 21 of the aluminum foil separator 2 is deformed, it is pressed into the anti-slip holes 111. This makes the connection between the first cork paper base layer 11 and the aluminum foil separator 2, as well as the connection between the second cork paper base layer 12 and the aluminum foil separator 2, more secure during the mutual compression process. This prevents the ends of the first cork paper base layer 11 and the second cork paper base layer 12 from being pulled out of the aluminum foil separator 2 in the opposite direction, thus ensuring a more stable cork paper structure.

[0025] More specifically, the openings 21 at both ends of the aluminum foil separator 2 are filled with adhesive 3. This ensures that after the first tipping paper base layer 11 and the second tipping paper base layer 12 are inserted into their respective openings 21, adhesive 3 adheres to the inserted portions. The adhesive 3 further enhances the connection strength between the first and second tipping paper base layers 11 and the aluminum foil separator 2, resulting in better overall stability after connection. It is worth noting that since existing tipping papers also have multiple functional layers, and adhesive 3 is used to connect adjacent functional layers, the use of adhesive 3 is quite common in tipping paper manufacturing and can be purchased directly. Therefore, the selection of adhesive 3 will not be elaborated upon here.

[0026] More specifically, the aluminum foil separator 2 has a pattern on the outer surface of the wall that forms the corresponding opening 21 at the end that mates with the first tipping paper base 11. This allows the aluminum foil separator 2 to not only connect and separate the first tipping paper base 11 and the second tipping paper base 12, but also to serve as a hot stamping layer for the produced tipping paper. This means that no further hot stamping is required, which can enhance the product's aesthetics and improve its grade.

[0027] More specifically, a heat insulation layer 5 is covered on the surfaces of the first tipping paper base layer 11 and the second tipping paper base layer 12, both located on the same side. This heat insulation layer 5 blocks the heat generated during combustion when smoking, preventing the cigarette filter from overheating and burning the user's mouth, thus improving the user experience. It is worth noting that since the heat insulation layer 5 is a commonly used functional layer in commercially available tipping paper and belongs to existing technology, its material selection will not be elaborated upon here.

[0028] More specifically, a filling layer 6 is provided on the side of the second cork paper base layer 12 away from the heat insulation layer 5, so that the height difference space formed on the aluminum foil separator 2 due to the arrangement of the first cork paper base layer 11 can be filled by the filling layer 6, thereby ensuring that the outer surface of the cork paper can remain flat and the overall integrity is better.

[0029] More specifically, the filling layer 6 can be one of the following: the tipping paper base layer 1, the base paper layer, or the breathable layer. That is, the filling layer 6 can be made of the same material as the first tipping paper base layer 11 and the second tipping paper base layer 12, or it can be made of the same material as the base paper. Alternatively, it can be a breathable layer available on the market. The appropriate filling layer 6 can be selected based on processing costs and usage requirements. It is worth noting that the breathable layer is a commonly used functional layer in commercially available tipping paper and is widely used in the industry; therefore, its specific material selection will not be elaborated upon here.

[0030] More specifically, a waterproof layer 7 is also provided on the first tipping paper base layer 11 and the second tipping paper base layer 12, on the side opposite to where the heat insulation layer 5 is located. The waterproof layer 7 reduces the risk of the subsequently produced cigarettes getting damp and effectively prevents the filter from sticking to the user's lips, thus affecting the user experience. The structural design is more reasonable. It is worth noting that when a filling layer 6 is provided on the second tipping paper base layer 12, the waterproof layer 7 is located on the side of the filling layer 6 opposite to the second tipping paper base layer 12, ensuring that the waterproof layer 7 is always located on the outermost surface of the tipping paper, ensuring an anti-sticking effect on the user's lips.

[0031] More specifically, the side of the first tipping paper base layer 11 with the heat insulation layer 5 is wrapped around the outside of the outer wrapping paper 81 of the tobacco body 8, so that the outer wrapping paper 81 of the tobacco body 8 can act as a filling layer 6 on the aluminum foil separator 2 corresponding to the height difference space on the side of the first tipping paper base layer 11. This makes full use of the structure of the tobacco body 8 itself, ensuring that the surface of the cigarette filter made of the tipping paper is smooth and flat, and has a better appearance.

[0032] More specifically, the aluminum foil separator 2 can also be replaced with tin material. That is, the industry can use separators of different materials according to actual market requirements, and is not limited to the aluminum foil material mentioned in this embodiment, as long as the requirements are met.

[0033] The oil-resistant tipping paper provided in this embodiment includes a tipping paper base layer 1 and an aluminum foil separator 2. The aluminum foil separator 2 is folded in an "S" shape to form openings 21 at both ends, and the openings 21 at both ends are isolated from each other. One end of the first tipping paper base layer 11 and one end of the second tipping paper base layer 12 in the tipping paper base layer 1 are respectively inserted into the two openings 21, so that the aluminum foil separator 2 connects the first tipping paper base layer 11 and the second tipping paper base layer 12 to form an integral structure, which meets the requirements of cigarette manufacturing. The aluminum foil separator 2 achieves complete isolation between the ends of the first tipping paper base layer 11 and the second tipping paper base layer 12, while meeting the requirements of oil resistance and flame retardancy. It reduces the stacking of functional layers, simplifies the processing technology, and improves processing efficiency.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An oil-proof tipping paper, characterized by, include: The water-tip paper base layer includes a first water-tip paper base layer and a second water-tip paper base layer; An aluminum foil separator is formed by folding the aluminum foil separator in an "S" shape to create an opening at both ends, and the openings at both ends are completely isolated. One end of the first tipping paper base layer is inserted into the opening at one end of the aluminum foil separator, and one end of the second tipping paper base layer is inserted into the opening at the other end of the aluminum foil separator. The other ends of the first tipping paper base layer and the other ends of the second tipping paper base layer extend toward opposite sides, and the length of the second tipping paper base layer is greater than the length of the first tipping paper base layer.

2. The oil-proof tipping paper according to claim 1, characterized in that, The first cork paper base layer, the second cork paper base layer, and the aluminum foil separator are all connected by extrusion.

3. The oil-resistant and moisture-proof paper according to claim 1, characterized in that, The first and second cork paper base layers are provided with recessed anti-slip holes at the ends of the aluminum foil separators that are inserted into the opening. After the wall of the opening of the aluminum foil separator is deformed, it is pressed into the anti-slip holes.

4. The oil-resistant and water-resistant paper according to claim 1, characterized in that, The openings at both ends of the aluminum foil separator are filled with adhesive.

5. The oil-resistant and water-resistant paper according to claim 1, characterized in that, A pattern is provided on the outer surface of the wall corresponding to the opening at the end of the aluminum foil separator that mates with the first cork paper base.

6. The oil-resistant and water-resistant paper according to claim 1, characterized in that, Both the first and second cork paper base layers are covered with a heat insulation layer on the same side of their surfaces.

7. The oil-resistant and moisture-proof paper according to claim 6, characterized in that, It also includes a filler layer disposed on the side of the second cork paper base layer away from the heat insulation layer.

8. The oil-resistant and water-resistant paper according to claim 7, characterized in that, The filling layer is one of the following: cork paper base layer, base paper layer, and breathable layer.

9. The oil-resistant and water-resistant paper according to claim 7, characterized in that, A waterproof layer is also provided on the first and second cork paper base layers, on the side opposite to where the heat insulation layer is provided.

10. The oil-resistant and water-resistant paper according to claim 6, characterized in that, The first water-retaining paper base layer, on the side where the heat insulation layer is provided, is wrapped around the outside of the outer wrapping paper of the tobacco body.

Images