Functional cigarette filter stick

Abstract

The invention belongs to the technical field of cigarette filter sticks, and particularly relates to a functional cigarette filter stick which comprises a functional element formed by rolling a non-woven fabric, in all layers forming the non-woven fabric, the proportions of all raw materials are not completely the same, and the pulling force borne by the raw materials of all the layers in the non-woven fabric is not completely the same. According to the technical scheme, the functional filter stick is formed by rolling the specific non-woven fabric, the proportions of all the raw materials in all the laying layers of the non-woven fabric are not all the same, and the tensile force borne by the raw materials of all the laying layers is not all the same, so that the overall tensile force on the non-woven fabric is not uniform, tiny wrinkles are formed, the surface area of the filter stick is increased, and the adsorption effect is improved; and in the smoking process, smoke heats the non-woven fabric, so that the tension of each fiber in the non-woven fabric is changed, the deformation of the internal structure of the non-woven fabric is caused, and the degradation rate of the filter stick is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of cigarette filter rods, and in particular relates to a functional cigarette filter rod. Background Art

[0002] At present, the commonly used filter rods on the market generally use acetate fiber tow as the main filter material. It has good elasticity and thermal stability, and can effectively intercept harmful components such as tar and nicotine in smoke. It is an excellent filter material for cigarettes. However, the wood pulp raw material for producing acetate fiber tow mainly relies on imports, and the production cost is relatively high, so there is a huge space for substitution. In addition, the biodegradation time of acetate fiber tow is long, resulting in the main treatment methods for discarded filter rods being incineration and landfill, which causes great environmental pollution.

[0003] In order to achieve tar reduction and harm reduction while having a degradable function, paper filter rods have been studied at home and abroad. Paper filter rods are made of sheets made of natural plant fibers that are rolled up by wrinkling. They have strong biodegradability and low raw material costs, which are more in line with the industry's "saving, clean, and green" development concept. At the same time, paper filter rods have more significant filtering performance for harmful substances such as tar in flue gas, giving them greater advantages in the field of tar reduction and harm reduction. However, due to its high interception rate for various components in flue gas, it also brings problems such as lighter smoke, insufficient aroma, and heavier paper smell. Summary of the invention

[0004] The purpose of the present invention is to provide a functional cigarette filter rod to solve the problems existing in the above-mentioned background technology.

[0005] To achieve the above objectives, this application is implemented through the following technical solutions:

[0006] A functional cigarette filter rod comprises a functional element made of nonwoven fabric. The proportions of various raw materials in various layers of the nonwoven fabric are not completely the same, and the tensions on the raw materials of various layers in the nonwoven fabric are not completely the same.

[0007] Furthermore, the nonwoven fabric is folded and cut and embossed before being rolled into a functional element.

[0008] Furthermore, the density of nonwoven fabric is 20-100g / m 2 , breaking strength is 5-100N, thickness is 100um-1000um.

[0009] Furthermore, the wrinkle embossing adopts a wrinkle embossing process, and the embossing width is 0.5mm-5mm, preferably, the embossing width is 0.8-2mm.

[0010] Furthermore, the cutting embossing adopts a cutting embossing process with a cutting width of 0.5 mm to 4 mm, and is cut into completely separated strips or strips that are neither broken nor not broken. Preferably, the embossing width is 0.8 to 2 mm.

[0011] Furthermore, after the nonwoven fabric is wrinkled and embossed and cut and embossed, the fragrance is sprayed or injected onto the surface of the nonwoven fabric.

[0012] Furthermore, the raw material of the nonwoven fabric at least includes lyocell fiber, preferably modified lyocell fiber.

[0013] Furthermore, the raw materials of the nonwoven fabric also include one or more of polylactic acid fiber, viscose fiber, bamboo pulp fiber, cotton pulp fiber, mahjong fiber, and wood pulp fiber.

[0014] Furthermore, the nonwoven fabric includes a hydrophobically modified solvent, and the hydrophobically modified solvent includes one or more of silicon dioxide, zinc oxide polystyrene, calcium carbonate, polytetrafluoroethylene, polydimethylsiloxane, polyvinylidene fluoride, polypropylene, polyethylene, and polyacrylonitrile.

[0015] Furthermore, the nonwoven fabric includes a flame retardant, and the flame retardant is one or more of metal hydroxides, antimony-based flame retardants, and halogen-based flame retardants.

[0016] The beneficial effects of the present invention are:

[0017] The functional filter rod in the present technical solution is made of a specific non-woven fabric. The proportions of the raw materials in each layer of the non-woven fabric are not the same, and the tension applied to the raw materials of each layer is not the same, so that the overall tension on the non-woven fabric is uneven, forming tiny wrinkles, increasing the surface area of ​​the filter rod and improving the adsorption effect. During the suction process, the smoke heats the non-woven fabric, causing the tension of the fibers in the non-woven fabric to change, causing the internal structure of the non-woven fabric to deform, thereby increasing the degradation rate of the filter rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the functional filter rod of the present invention.

[0019] Description of reference numerals:

[0020] 1. Functional element; 2. Functional cigarette filter rod; 3. Forming paper; 4. Nonwoven fabric. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, but cannot be construed as limiting the technical solution of the present invention.

[0022] See also Figure 1 As shown, the present application provides a functional cigarette filter rod, including a functional element 1 made of non-woven fabric, wherein the proportions of various raw materials in various layers constituting the non-woven fabric are not all the same, and the tensions to which the raw materials of various layers in the non-woven fabric are subjected are not all the same.

[0023] The functional cigarette filter rod 2 of the present application can be a functional element completely rolled from non-woven fabric, or can be rolled from multiple functional elements, but at least one of the multiple functional elements is rolled from the non-woven fabric of the present application.

[0024] The nonwoven fabric 4 of the present application is different from the nonwoven fabric of the prior art in that it can be actually used in filter rods, and the nonwoven fabric of the present application will not produce odor to the smoke. The key to the nonwoven fabric of the present application is that it is based on the conventional preparation process of nonwoven fabrics. It is prepared by multiple layers through processes such as laying, reinforcement, and drying. The raw material proportions of each layer are not all the same. The raw material types of each layer here are the same, and in the laying process, the tension on the raw materials of each layer is not all the same. This difference in tension will result in different tension on the entire nonwoven fabric after the final reinforcement and drying processes, that is, the raw material fibers with large laying tension have a greater contraction force than the raw material fibers with small tension. The difference in these contraction forces causes tiny wrinkles to form on the surface of the nonwoven fabric, so that the surface area of ​​the nonwoven fabric is increased compared to the surface area of ​​conventional nonwoven fabrics.

[0025] The density of the nonwoven fabric in this application is 20-100g / m 2 , breaking strength is 5-100N, thickness is 100um-1000um. Specifically, the composition of raw materials is different, resulting in different density and breaking strength of nonwoven fabrics, and the thickness is different due to different layers.

[0026] In the present application, the nonwoven fabric is embossed with wrinkles and cut, and then rolled into functional elements by a smoke gun. The equipment and process for rolling the functional elements are all prior art. Those skilled in the art can carry out the rolling operation of the functional elements by adjusting the corresponding parameters according to actual production needs.

[0027] In the present application, the wrinkle embossing adopts the wrinkle embossing process, and the embossing width is 0.5mm-5mm, preferably, the embossing width is 0.8-2mm. The cutting embossing adopts the cutting embossing process, and the cutting width is 0.5mm-4mm, and the strips are cut into completely separated strips or strips that are not broken. Preferably, the embossing width is 0.8-2mm. The wrinkle embossing process and the cutting embossing process of the present application are both conventional technologies, and those skilled in the art can select the corresponding technology according to actual needs.

[0028] In the present application, after the nonwoven fabric is wrinkled and cut, it is sprayed or injected with fragrance to achieve fragrance on the surface of the nonwoven fabric, further providing functions such as rich fragrance, fragrance enhancement and moisturizing.

[0029] In the present application, the raw material of the nonwoven fabric includes at least lyocell fiber, preferably modified lyocell fiber, more preferably hydrophobically modified lyocell fiber, and may also include one or more of polylactic acid fiber, viscose fiber, bamboo pulp fiber, cotton pulp fiber, mahjong fiber, and wood pulp fiber.

[0030] In the present application, during the preparation process of the nonwoven fabric, hydrophobic modification can be performed, such as adding silica, zinc oxide polystyrene, calcium carbonate, polytetrafluoroethylene (PTFE), polydimethylsiloxane (PDMS), polyvinylidene fluoride (PVDF), polypropylene (PP), polyethylene (PE), polyacrylonitrile (PAN), etc., to improve the excessive adsorption of tar and nicotine in smoke.

[0031] During the preparation of the nonwoven fabric, flame retardants such as metal hydroxides, antimony-based flame retardants, halogen-based flame retardants, etc. may be added.

[0032] Although the present invention is described herein with reference to the illustrative embodiments of the present invention, it should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in the present application. More specifically, within the scope disclosed in the present application, multiple variations and improvements can be made to the components and / or layout of the subject combination layout. In addition to the variations and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A functional cigarette filter rod, characterized in that: Including functional elements made of non-woven fabrics, the proportions of various raw materials in various layers of the non-woven fabrics are not all the same, and the tensions on the raw materials of various layers in the non-woven fabrics are not all the same.

2. The functional cigarette filter rod according to claim 1, characterized in that: Nonwoven fabric density is 20-100g / m 2 , breaking strength is 5-100N, thickness is 100um-1000um.

3. The functional cigarette filter rod according to claim 1, characterized in that: The nonwoven fabric is embossed by pleating and cutting and then rolled into functional components.

4. The functional cigarette filter rod according to claim 3, characterized in that: The wrinkle embossing adopts the wrinkle embossing process, and the embossing width is 0.5mm-5mm.

5. The functional cigarette filter rod according to claim 3, characterized in that: Cutting embossing adopts cutting embossing technology, with a cutting width of 0.5mm-4mm, cutting into completely separated strips or strips that are neither broken nor not broken.

6. The functional cigarette filter rod according to claim 3, characterized in that: After the nonwoven fabric is wrinkled and cut, it is sprayed or injected with fragrance to achieve fragrance on the surface of the nonwoven fabric.

7. The functional cigarette filter rod according to claim 1, characterized in that: The raw material of the nonwoven fabric at least includes lyocell fiber.

8. The functional cigarette filter rod according to claim 1, characterized in that: The raw materials of the nonwoven fabric also include one or more of polylactic acid fiber, viscose fiber, bamboo pulp fiber, cotton pulp fiber, mahjong fiber, and wood pulp fiber.

9. The functional cigarette filter rod according to claim 1, characterized in that: The nonwoven fabric includes a hydrophobically modified solvent, and the hydrophobically modified solvent includes one or more of silicon dioxide, zinc oxide polystyrene, calcium carbonate, polytetrafluoroethylene, polydimethylsiloxane, polyvinylidene fluoride, polypropylene, polyethylene, and polyacrylonitrile.

10. The functional cigarette filter rod according to claim 1, characterized in that: The nonwoven fabric includes a flame retardant, and the flame retardant is one or more of metal hydroxides, antimony-based flame retardants, and halogen-based flame retardants.

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