Tip wrappers for aerosol products

Abstract

The present invention relates to a tip wrapper for an aerosol product, the tip wrapper having a base layer with a porosity of less than 1.5 CU, the base layer containing at least one filler material, the tip wrapper further comprising a side colored with a color component containing CaCO3 and at least a second component functioning as a non-burning filler, the color component having a basis weight of at least 2.0 gsm, and the colored side having a surface smoothness of at least 400 seconds. The present invention also relates to a method of manufacturing a tip wrapper for cigarettes, the method comprising the steps of: a) providing a base layer of a tip wrapper; and b) coating the base layer with a solution containing a filler component, the coated base layer being pressed and heated at a predetermined temperature greater than 100°C.

Description

[Technical field]

[0001] The present invention is directed to aerosol product articles, such as, for example, cigarettes. The present application is particularly directed to tip wrappers for aerosol product articles, such as, for example, cigarettes. Cigarettes known from the state of the art typically comprise several components, such as, for example, a filter, a cigarette body, and a so-called tip wrapper, which is typically at least partially wrapped around the filter. [Background technology]

[0002] In the current state of the art, the tip wrapper, often also referred to in the art as "tipping paper", has the function of connecting the mouthpiece rod and the tobacco rod, but it is also known from the current state of the art that decorations such as printing, foil stamping, embossing, etc. are added to the tip wrapper. One of the decorations of the tip wrapper is a glossy appearance (especially a high gloss), so the tip wrapper is expected to increase the appeal of the product.

[0003] A technique known in the art is to print with silver ink to achieve such a glossy appearance, but this requires an additional printing process.

[0004] Furthermore, papers containing 10% or more kaolin can be calendered to give them a glossy appearance, but this can cause problems with ink peeling from the paper surface after printing.

[0005] In contrast, the tip wrapper is the connection between the mouthpiece and the tobacco rod and therefore must be non-combustible (smolder-resistant). To ensure sufficient non-combustibility, some non-combustible tip wrappers have been developed that contain a certain amount of non-combustible filler.

[0006] Titanium dioxide has been widely used as such a filler. This material has the advantages of high opacity (bringing high opacity to the paper) and non-flammability. However, in some countries, this material is banned due to health concerns.

[0007] In addition, the tip wrapper should have a good lip feel during smoking. Consumers generally prefer a better lip release feel. This means that the tobacco should not stick to the lips after smoking the cigarette. For this reason, it is common to add a lip release varnish to the surface of the tip wrapper to prevent the tip wrapper from sticking to the consumer's mouth.

[0008] However, the addition of lip release varnish is still evident, especially in dry climates. Therefore, one of the objects of the present invention is to provide a tip wrapper that provides an improved lip release feel. Another object of the present invention is to provide a tip wrapper that provides a glossy appearance, especially without an additional printing step or even the use of titanium dioxide (TiO2). An improved lip release feel should also be provided. Summary of the Invention [Means for solving the problem]

[0009] The above mentioned objects are met by the objects of the independent claims. Advantageous embodiments are the object of the dependent claims.

[0010] A tip wrapper according to the present invention for an aerosol product, e.g., for a cigarette, has a base layer having a porosity of less than 1.5 CU, the base layer including at least one filler material, the tip wrapper further comprising a pigmented surface, the pigmented surface being pigmented with, inter alia, a pigment component including CaCO3 and at least a second component functioning as a non-burning filler, the pigment component having a basis weight of at least 2.0 gsm, and the pigmented surface having a surface smoothness of at least 400 seconds.

[0011] Preferably, the tip wrapper is a tip paper. Preferably, the material of the tip wrapper is paper. The tip wrapper described herein meets the requirements of a typical tip wrapper, such as sufficient ink fixation, non-flammability, and machine runnability. Furthermore, the tip wrapper according to the present invention has a glossy appearance and improved lip feel. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] In a highly preferred embodiment, the filler material is selected from the group of materials including kaolin, CaCO3, talc, and Al(OH)3 (aluminum hydroxide).

[0013] Thus, one, two, some or all of these materials may be included in the filler material, as well as any combination of materials, such as kaolin and talc, or CaCO3 and Al(OH)3.

[0014] The smoothness is preferably measured by the Beck method. The Beck smoothness test is a useful technique for determining the smoothness of a sample. Smoothness or roughness is a substantial surface property of paper, carton or cardboard, coated sheets, etc. The quality of the surface structure has a large impact on printability and all forms of coating.

[0015] The Beck smoothness measurement is an established method in the paper industry that is based on air flow. The slower the air flow between the paper surface and an ideal flat surface, the smoother the paper will be, measured in seconds of Beck smoothness. The preferred method uses a 10 cm 2 Representative papers can be tested using the Beck method.

[0016] The gloss mentioned above refers to the specular gloss of paper. The specular gloss test is a useful method to judge the gloss of a sample. Gloss is a substantial surface property of paper, carton or cardboard, coated or laminated sheets, etc. The quality of the surface gloss has a great impact on the appearance.

[0017] Gloss measurement is based on specular reflection and is a well-established method in the paper industry. Specular gloss is expressed as a percentage of the light flux reflected by a sample surface at a specular angle into a specific aperture, relative to the light flux reflected by a standard specular surface under the same conditions. In the preferred method, light is incident on the specimen surface at an angle of 60 degrees.

[0018] In another preferred embodiment, the second component is selected from the group of components including kaolin, talc, or aluminum hydroxide Al(OH)3. The second component may also include two or more of these components. The second component may also include a specific selection of these components, such as kaolin and talc, or talc, kaolin, and aluminum hydroxide Al(OH)3.

[0019] In another highly preferred embodiment, the base layer is a base paper. The colored side may also be referred to as the printing side. In a preferred embodiment, the colored side is bonded to the base layer.

[0020] The unit CU is the distance between the pressure vessel and the surface of the vessel when a pressure difference of 1 kPa is applied. 2 The volumetric flow rate (cm) of air passing through a substrate sample 3 This is understood as the so-called Coresta unit, which is defined by the formula (in units of / min).

[0021] In another preferred embodiment, two or more of the above components are included. In another preferred embodiment, the colored layer may include printing. In another preferred embodiment, the colored layer serves to improve the brightness of the chip wrapper.

[0022] The smoothness of the pigmented surface is at least 500 seconds (measured by the Bekk method).

[0023] In another preferred embodiment, the base layer and the colored surface form a double layer structure, where for example these two layers can be bonded to each other.

[0024] In another preferred embodiment of the invention, the filler material of the base layer is selected from or comprises a material selected from the group of materials comprising kaolin, CaCO3, talc, and aluminum hydroxide (Al(OH)3), preferably a majority of these materials are included in the filler material of the base layer.

[0025] In another preferred embodiment, the basis weight of the tip wrapper is greater than 40 gsm, preferably greater than 45 gsm. In another preferred embodiment, the basis weight of the tip wrapper is less than 60 gsm, preferably less than 55 gsm. These basis weights have proven to be in the preferred range for machine runnability, particularly on manufacturing machines.

[0026] In another preferred embodiment, the thickness of the chip wrapper is greater than 30 micrometers, preferably greater than 35 micrometers.

[0027] In another preferred embodiment, the thickness of the chip wrapper is less than 55 micrometers, preferably less than 50 micrometers.

[0028] Preferably, the thickness along the tip wrapper surface has a deviation of less than 20%, preferably less than 10%. In another preferred embodiment, the paper density of the tip wrapper is 1.1 g / cm 3 Larger, preferably 1.15 g / cm 3 In another preferred embodiment, the paper density of the tip wrapper is greater than 1.3 g / cm 3 Smaller, preferably 1.25 g / cm 3 Less than.

[0029] This feature also improves machine run capacity on cigarette making machines.

[0030] In another preferred embodiment, the smoothness of the tip wrapper is greater than 500 seconds, preferably greater than 600 seconds, preferably greater than 700 seconds. Preferably, the smoothness of the tip wrapper is less than 2500 seconds, preferably less than 2000 seconds.

[0031] In another preferred embodiment, the gloss of the tip wrapper is greater than 10%, preferably greater than 15%, preferably greater than 20%. Preferably, the gloss of the tip wrapper is less than 35%, preferably less than 30%.

[0032] In another preferred embodiment, the pigment component comprises CaCO3 (calcium carbonate) and kaolin in a ratio of 3:7 to 7:3, preferably 4:6 to 7:3, and most preferably 5:5 to 6:4.

[0033] In another preferred embodiment, the amount of tint is greater than 2 gsm, preferably greater than 3 gsm, preferably greater than 4 gsm, preferably greater than 5 gsm.

[0034] In another preferred embodiment, the tip wrapper does not contain titanium dioxide (TiO2), thus avoiding possible health risks as considered in some countries.

[0035] In another preferred embodiment, the colored surface is based on a coating solution that includes water, a binder component, and a color component, although other components may also be included.

[0036] The present invention is further directed to a cigarette comprising a tipping wrapper according to the above description. Preferably, the cigarette comprises a mouthpiece rod, a tobacco rod and a connector connecting these two elements. Preferably, the tipping wrapper, in particular the tipping wrapper mentioned above, serves to connect the mouthpiece rod and the tobacco rod.

[0037] The present invention is further directed to a method for producing a tip wrapper for an aerosol product, in particular for a cigarette, the method comprising, inter alia, the following steps:

[0038] In a first step, a base layer of the chip wrapper is provided, and in a second step, the base layer is coated with a solution that includes a pigment component that includes CaCO3 and at least a second component that functions as a non-combustible filler.

[0039] In accordance with the present invention, the coated base layer is pressed and heated at a predetermined temperature to form a pigmented surface having a surface smoothness of at least 400 seconds.

[0040] Preferably, the base layer comprises at least one filler material as defined above.

[0041] In preferred embodiments of the method, the predetermined temperature is higher than 100°C, preferably higher than 140°C, preferably higher than 150°C, preferably higher than 170°C, and / or the temperature is lower than 300°C, preferably lower than 250°C, preferably lower than 200°C.

[0042] In a preferred embodiment of the method, the pulp or filler mixture can be pressed into a flat wire, which step allows the mixture to lose water from at least one side, and preferably both the top and bottom sides, allowing the water to be wicked away.

[0043] In a subsequent method step, the sheet can be pressed between elements, in particular between cylinders, in this way more moisture is removed from the paper.

[0044] In another preferred embodiment, the paper is dried, in particular by contacting the paper with a steam-heated cylinder. Preferably, therefore, a cylinder device or cylinder is used to dry the paper, in particular a heated cylinder, most preferably a steam-heated cylinder.

[0045] In another preferred embodiment, a surface coating, especially a coloring unit, is used. In another preferred step, a coating of a solution (preferably containing a filler and a binder) is provided on at least one side of the paper. Preferably, a coating is used, especially a pigment component containing CaCO3 and at least a second component acting as a non-combustible filler. Preferably, the pigment component is provided with a basis weight of at least 2.0 gsm.

[0046] In another preferred embodiment, further drying of the paper is performed, preferably again by a heated cylinder, most preferably by a steam heated cylinder.

[0047] In another preferred embodiment, the above-mentioned calendering step is added. Preferably, the paper passes between the calender rollers, especially at higher temperature and pressure. Thus, the surface of the paper is smooth and glossy. This is especially possible if the amount of filler on the surface of the paper is sufficient.

[0048] In another preferred embodiment, the paper is wound, preferably using a reel.In another preferred embodiment, the physical properties of the paper, such as basis weight, opacity, etc., are measured.

[0049] The product provides an improved glossy appearance and a higher surface or smoothness.

Claims

1. A tip wrapper for an aerosol product, the tip wrapper having a base layer having a porosity of less than 1.5 C.U., the base layer including at least one filler material, the tip wrapper including at least one filler material selected from the group consisting of CaCO ３ and at least a second component functioning as a non-combustible filler, said pigment component having a basis weight of at least 2.0 gsm, and said pigmented surface having a surface smoothness of at least 400 seconds.

2. 10. The chip wrapper of claim 1, wherein said base layer and said colored surface form a dual layer structure.

3. The filler material of the base layer is kaolin, CaCO ３ , talc, and Al(OH) ３ 3. The chip wrapper of claim 1 or 2, characterized in that the material is selected from the group of materials including:

4. The tip wrapper of any one of claims 1 to 3, wherein the basis weight of the tip wrapper is greater than 40 gsm and / or the basis weight of the tip wrapper is less than 60 gsm.

5. The tip wrapper of any one of claims 1 to 4, wherein the thickness of the tip wrapper is greater than 30 micrometers and / or the thickness of the tip wrapper is less than 55 micrometers.

6. The paper density of the tip wrapper is 1.1 g / cm ３ and / or the paper density of the tip wrapper is 1.3 g / cm ３ The chip wrapper of any one of claims 1 to 5, characterized in that it is smaller.

7. The tip wrapper of any one of claims 1 to 6, characterized in that the tip wrapper has a smoothness of greater than 500 seconds.

8. The tip wrapper of any one of claims 1 to 7, characterized in that the tip wrapper has a smoothness of less than 2500 seconds.

9. The tip wrapper of any one of claims 1 to 8, wherein the gloss of the tip wrapper is greater than 10%.

10. 10. The tip wrapper of claim 9, wherein the gloss of the tip wrapper is less than 35%.

11. The pigment component is CaCO ３ A chip wrapper according to any one of claims 1 to 10, characterized in that it contains kaolin in a ratio of 3:7 to 7:

3.

12. The tip wrapper of any one of claims 1 to 11, wherein the amount of pigment component is greater than 5 gsm.

13. The chip wrapper is made of titanium dioxide (TiO ２ 13. The chip wrapper of claim 1, wherein the wrapper is free of any one of the following:

14. The chip wrapper of any one of claims 1 to 13, wherein the colored surface is based on a coating solution that includes water, a binder component, and the colorant component.

15. A cigarette comprising a tipping wrapper according to any one of claims 1 to 14.

16. 1. A method of making a tipping wrapper for a cigarette, the method comprising: providing a base layer of the chip wrapper; The base layer is made of CaCO ３ and at least a second component acting as a non-combustible filler; pressing and heating the coated base layer to form a pigmented surface having a surface smoothness of at least 400 seconds; The method includes:

17. 17. The method of claim 16, characterized in that the coated base layer is pressed and heated at a predetermined temperature, said predetermined temperature being higher than 100°C and / or said predetermined temperature being lower than 300°C.