CN114631644A - Double-layer filter stick, composite filter stick, cigarette and cigarette preparation method - Google Patents

Abstract

The invention relates to the technical field of tobacco, in particular to a double-layer filter rod, a composite filter rod, a cigarette and a preparation method of the cigarette. The double-layer filter rod is used for preparing cigarettes, and includes an inner-layer filter element and an outer-layer filter element. The outer filter element is tubular, the inner filter element is arranged in the lumen of the outer filter element, and the axis of the inner filter element and the axis of the outer filter element are parallel. Grooves are provided on the outer surface of the inner-layer filter element, and/or through-holes are arranged axially through the inner-layer filter element. The composite filter rod includes forming paper, acetate filter rod and the above-mentioned double-layer filter rod. The shaped paper is wrapped on the outside of the acetate fiber filter rod and the double-layer filter rod, and the acetate fiber filter rod and the double-layer filter rod are coaxially spliced and arranged. The cigarette includes the above-mentioned composite filter rod, and the preparation method for preparing the above-mentioned cigarette comprises the following steps: using a first filter rod forming device to prepare an inner layer filter rod, using a second filter rod forming device to prepare an outer layer filter rod, and preparing the inner layer filter rod and The outer filter rod is compounded, and then the compounded filter rod is cut to obtain a double-layer filter rod.

Description

A kind of double-layer filter rod, composite filter rod, cigarette and preparation method of cigarette

technical field

The invention relates to the technical field of cigarette rolling, in particular to a double-layer filter rod, a composite filter rod, a cigarette and a preparation method of the cigarette.

Background technique

Hollow filter cigarettes are gradually favored by the market due to their novel appearance and relaxed and comfortable smoking experience, and consumers' demand for hollow filter rods has gradually diversified. With the gradual maturity of the manufacturing process of hollow filter rods, special-shaped hollow filter rods with grooves or other irregular shapes on the surface also appear one after another. If the surface collapses, it needs to be wrapped with high basis weight forming paper. However, the high-quantity forming paper has large thickness, high strength, and is difficult to form, and the forming paper is prone to bursting at the lap.

Therefore, there is an urgent need for a double-layer filter rod, a composite filter rod, a cigarette and a method for preparing the cigarette to solve the above problems.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a double-layer filter rod, the outer surface of which is not easy to collapse, and does not require high quantitative forming paper for wrapping, which can effectively prevent the occurrence of bursting at the overlap of the forming paper.

For this purpose, the present invention adopts the following technical solutions:

A double-layer filter rod for preparing cigarettes, the double-layer filter rod comprises an inner-layer filter element and an outer-layer filter element, the outer-layer filter element is tubular, and the inner-layer filter element is arranged in the lumen of the outer-layer filter element Inside, the axis of the inner layer filter element is parallel to the axis of the outer layer filter element, the outer surface of the inner layer filter element is provided with a groove, and/or, the inner layer filter element is provided with a through-hole along the axial direction. hole.

As a preferred solution of a double-layer filter rod, the inner-layer filter element and the outer-layer filter element are arranged coaxially.

As a preferred solution of a double-layer filter rod, the outer wall of the inner filter element and the inner wall of the outer filter element are in an interference fit.

As a preferred solution of a double-layer filter rod, the grooves are provided with a plurality of grooves, and a plurality of the grooves are evenly arranged at intervals along the circumferential direction of the inner-layer filter element (11).

As a preferred solution of a double-layer filter rod, the value range of the outer diameter of the inner layer filter element is 5mm-6mm, the value range of the outer diameter of the outer layer filter element is 7mm-8mm, and the outer layer filter element The value range of the wall thickness is 1mm-2mm.

Another object of the present invention is to provide a composite filter rod, the outer surface of which is not easily collapsed, and can effectively prevent the bursting phenomenon at the overlap of the forming paper.

For this purpose, the present invention adopts the following technical solutions:

A composite filter rod, comprising shaping paper, an acetate filter rod and the above-mentioned double-layer filter rod, the shaping paper is wrapped on the outside of the acetate fiber filter rod and the double-layer filter rod, and the acetate fiber filter rod is It is coaxially spliced with the double-layer filter rod.

Another object of the present invention is to provide a cigarette, the composite filter rod is not easy to collapse, and the forming paper overlap is not easy to burst.

For this purpose, the present invention adopts the following technical solutions:

A cigarette, comprising the above-mentioned composite filter rod.

Yet another object of the present invention is to provide a preparation method, in which the composite filter rod of the prepared cigarette is not easily collapsed, and the overlapped portion of the forming paper is not easily burst.

For this purpose, the present invention adopts the following technical solutions:

A preparation method for preparing the above-mentioned cigarette, the preparation method comprising the following steps:

The first filter rod forming device is used to prepare the inner layer filter rod, the second filter rod forming device is used to prepare the outer layer filter rod, the inner layer filter rod and the outer layer filter rod are compounded, and then the compounded filter rod is compounded. Slitting is performed to obtain a double-layer filter rod.

As a preferred solution of the preparation method, when preparing the inner layer filter rod, the first filter rod forming device adopts a steam inner jacket with a diameter of 5mm-6mm and a cooling inner jacket, and the diacetate fiber containing triacetin is used. The tow is rapidly formed under the action of a high temperature of 120°C-170°C and a high pressure of 0.1MPa-0.2MPa to obtain the inner layer filter rod, and the inner layer filter rod is prepared by using a single-strand monofilament with a linear density of 5 denier- 7 denier, the total density of the tow is 20,000 denier-40,000 denier diacetate fiber tow, and the added triacetin accounts for 15%-30% of the mass of the diacetate fiber tow;

When preparing the outer layer filter rod, the second filter rod forming device adopts a steam inner jacket with a diameter of 7mm-8mm and a cooling inner jacket, and the diacetate fiber tow containing triacetin is heated at 120°C-170°C. The outer layer filter rod is obtained by rapid prototyping under the action of high temperature and 0.1MPa-0.2MPa high-pressure steam, and the double-strand monofilament linear density is 5 denier-7 denier for preparing the outer layer filter rod, and the total density of the tow is Diacetate fiber tow of 20,000 denier-40,000 denier, or two monofilaments with a linear density of 5-7 denier and a total tow density of 40,000-80,000 denier In the acetate fiber tow, the added triacetin accounts for 15%-30% of the mass of the diacetate fiber tow.

As a preferred solution of the preparation method, after the double-layer filter rod is obtained, it is necessary to use forming paper to compound the acetate filter rod and the double-layer filter rod to make a composite filter rod, and then the composite filter rod needs to be combined. Combining with cigarettes to obtain cigarettes.

Beneficial effects of the present invention:

The invention provides a double-layer filter rod for preparing cigarettes. The double-layer filter rod comprises an inner-layer filter element and an outer-layer filter element. The outer filter element is tubular, the inner filter element is arranged in the lumen of the outer filter element, and the axis of the inner filter element is parallel to the axis of the outer filter element. Grooves are provided on the outer surface of the inner-layer filter element, and/or through-holes are arranged axially through the inner-layer filter element. When grooves are provided on the outer surface of the inner filter element, or through holes are provided in the interior along the axial direction, or the inner filter element is simultaneously provided with grooves on the outer surface, and the interior is provided axially through the filter element. When there are through holes, the inner filter element is prone to collapse. However, because the double-layer filter rod is provided with an outer filter element outside the inner filter element, the outer filter element has a supporting function, which can prevent collapse, and does not require high quantitative forming paper for wrapping, which can effectively prevent the overlapping of the forming paper. A burst phenomenon occurs.

The present invention also provides a composite filter rod, including forming paper, an acetate filter rod and the above-mentioned double-layer filter rod. The shaped paper is wrapped on the outside of the acetate fiber filter rod and the double-layer filter rod. Coaxial splice settings. Since the outer surface of the double-layer filter rod is not easily collapsed, that is, the outer surface of the composite filter rod itself is not easily collapsed, and high quantitative forming paper is not required, it can effectively prevent the occurrence of bursting at the overlap of the forming paper.

The present invention also provides a cigarette, comprising the above-mentioned composite filter rod, wherein the composite filter rod is not easily collapsed, and the overlapping portion of the forming paper is not easily burst.

The present invention also provides a preparation method for preparing the above-mentioned cigarette, the preparation method comprising the following steps: using a first filter rod forming device to prepare an inner layer filter rod, using a second filter rod forming device to prepare an outer layer filter rod, The inner layer filter rod and the outer layer filter rod are combined, and then the combined filter rod is cut to obtain a double layer filter rod. The cigarette prepared by using the preparation method is not easy to collapse at the composite filter rod, and is not easy to burst at the overlap of the forming paper.

Description of drawings

1 is a cross-sectional view of a double-layer filter rod provided by an embodiment of the present invention;

FIG. 2 is a partial structural schematic diagram of a cigarette provided by an embodiment of the present invention.

In the picture:

1. Double layer filter rod; 11. Inner filter element; 111, groove; 112, through hole; 12, outer filter element;

2, acetate filter rod;

3. Cigarettes.

Detailed ways

The technical solutions of the present invention are further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the accompanying drawings only show some but not all of the parts related to the present invention.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

With the gradual maturity of the manufacturing process of hollow filter rods, special-shaped hollow filter rods with grooves or other irregular shapes on the surface also appear one after another. If the surface collapses, it needs to be wrapped with high basis weight forming paper. However, the high-quantity forming paper has large thickness, high strength, and is difficult to form, and the forming paper is prone to bursting at the lap.

Therefore, this embodiment provides a double-layer filter rod 1 to solve the above problems.

As shown in FIG. 1 , the double-layer filter rod 1 is used for preparing cigarettes, and the double-layer filter rod 1 includes an inner-layer filter element 11 and an outer-layer filter element 12 . The outer filter element 12 is tubular, the inner filter element 11 is arranged in the lumen of the outer filter element 12 , and the axis of the inner filter element 11 and the axis of the outer filter element 12 are parallel. Grooves 111 are provided on the outer surface of the inner layer filter element 11 , and/or through holes 112 are arranged axially through the inner layer filter element 11 .

When a groove 111 is provided on the outer surface of the inner filter element 11, or a through hole 112 is provided in the inner layer along the axial direction, or the inner filter element 11 is also provided with a groove 111 on the outer surface, and the inner When the through hole 112 is provided in the axial direction, the inner filter element 11 is prone to collapse. However, since the double-layer filter rod 1 is provided with an outer layer filter element 12 outside the inner layer filter element 11, the outer layer filter element 12 has a supporting function, which can prevent collapse, and does not require high quantitative forming paper for wrapping, which can effectively prevent forming There is a burst phenomenon at the paper lap.

Preferably, the inner filter element 11 and the outer filter element 12 are arranged coaxially, and the through hole 112 is arranged at the center of the inner filter element 11 . When the thickness of the outer filter element 12 is the same, the support force of the outer filter element 12 to the inner filter element 11 can be balanced.

Preferably, the outer wall of the inner filter element 11 and the inner wall of the outer filter element 12 are in interference fit to ensure a firm connection between the two.

Preferably, a plurality of grooves 111 are provided on the outer surface of the inner filter element 11, and the plurality of grooves 111 are evenly spaced along the circumferential direction. A plurality of grooves 111 are evenly arranged on the outer surface of the inner filter element 11. Compared with a groove 111 with the same volume in a certain place, the structure of the former is more conducive to preventing collapse, and the support strength of the outer filter element 12 is improved. less demanding.

According to the conventional size of cigarette, preferably, the value range of the outer diameter of the inner layer filter element 11 is 5mm-6mm, the value range of the outer diameter of the outer layer filter element 12 is 7mm-8mm, and the value of the wall thickness of the outer layer filter element 12 is 7mm-8mm. The value range is 1mm-2mm to ensure the support strength of the outer filter element 12 .

The present embodiment also provides a composite filter rod, including forming paper, cellulose acetate filter rod 2 and the above-mentioned double-layer filter rod 1, the forming paper is wrapped around the outside of the cellulose acetate filter rod 2 and the double-layer filter rod 1, and the cellulose acetate filter rod 1 2 and the double-layer filter rod 1 are coaxially spliced and set. Since the outer surface of the above-mentioned double-layer filter rod 1 is not easily collapsed, that is, the outer surface of the composite filter rod itself is not easily collapsed, and high quantitative forming paper is not required, it can effectively prevent the occurrence of bursting at the overlap of the forming paper.

As shown in FIG. 2 , this embodiment also provides a cigarette, which includes a cigarette 3 and the above-mentioned composite filter rod, and the acetate filter rod 2 is spliced with the cigarette 3 . The composite filter rod of the cigarette is not easy to collapse, and the overlap of the forming paper is not easy to burst.

The present embodiment also provides a preparation method for preparing the above-mentioned cigarette, the preparation method comprising the following steps:

Use the first filter rod forming device to prepare the inner layer filter rod, preferably, when preparing the inner layer filter rod, the first filter rod forming device adopts a steam inner jacket with a diameter of 5mm-6mm and a cooling inner jacket, so that the triacetin-containing Diacetate fiber tow is subjected to the action of high temperature of 120°C-170°C and high pressure of 0.1MPa-0.2MPa, and the inner layer filter rod is obtained by rapid molding.

Preferably, the inner layer filter rod is prepared by using a monofilament with a linear density of 5 denier to 7 denier, a diacetate fiber tow with a total density of 20,000 denier to 40,000 denier, and added triacetic acid. The mass proportion of glycerides in the diacetate fiber tow is 15%-30%.

Use the second filter rod forming device to prepare the outer layer filter rod, preferably, when preparing the outer layer filter rod, the second filter rod forming device adopts a steam inner jacket with a diameter of 7mm-8mm and a cooling inner jacket, so that the triacetin-containing The diacetate fiber tow is subjected to the action of steam at a high temperature of 120°C-170°C and a high pressure of 0.1MPa-0.2MPa, and the outer layer filter rod is obtained by rapid molding.

Preferably, the outer layer filter rod is prepared by using a double-strand monofilament with a linear density of 5 denier-7 denier and a total density of the tow of 20,000 denier-40,000 denier diacetate fiber tow, or using a single strand The monofilament linear density is 5 denier-7 denier, the total density of the tow is 40000 denier-80000 denier diacetate fiber tow, the added triacetin accounts for the mass ratio of the diacetate fiber tow 15%-30%.

The prepared inner layer filter rod and outer layer filter rod are compounded, so that the two are coaxially sleeved, and the outer wall of the inner layer filter rod and the inner wall of the outer layer filter rod are in an interference fit. Then, the composite filter rods are cut according to size requirements to obtain a plurality of double-layer filter rods 1 .

After the double-layer filter rod 1 is obtained, it is necessary to compound the acetate filter rod 2 and the double-layer filter rod 1 by using forming paper to make a composite filter rod. Among them, the acetate filter rod 2 and the double-layer filter rod 1 are coaxially spliced along the length direction. Finally, the composite filter rod is composited with the cigarette 3 to obtain a cigarette.

The preparation method has the advantages of simple process and high production efficiency, and the composite filter rod of the cigarette prepared by the above preparation method is not easily collapsed, and the overlapping portion of the forming paper is not easily burst, which can effectively ensure the quality of the product.

Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the embodiments of the present invention. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims (10)

1. The utility model provides a double-deck filter rod, its characterized in that for preparing the cigarette, double-deck filter rod (1) includes inlayer filter core (11) and outer filter core (12), outer filter core (12) are the tubulose, inlayer filter core (11) set up in the lumen of outer filter core (12), the axis of inlayer filter core (11) with the axis of outer filter core (12) is parallel, be provided with recess (111) on the surface of inlayer filter core (11), and/or, it is provided with through-hole (112) to run through along the axial in inlayer filter core (11).

2. A double layer filter rod according to claim 1 wherein the inner filter element (11) and the outer filter element (12) are coaxially arranged.

3. A double layer filter rod according to claim 1 wherein the outer wall of the inner filter element (11) and the inner wall of the outer filter element (12) are an interference fit.

4. A double-layer filter rod according to claim 1, wherein the grooves (111) are provided in plurality, and the grooves (111) are uniformly arranged at intervals along the circumferential direction of the inner filter element (11).

5. The double-layer filter stick according to claim 1, wherein the outer diameter of the inner filter element (11) ranges from 5mm to 6mm, the outer diameter of the outer filter element (12) ranges from 7mm to 8mm, and the wall thickness of the outer filter element (12) ranges from 1mm to 2 mm.

6. A composite filter stick, characterized by comprising a forming paper, an acetate fiber filter stick (2) and a double-layer filter stick according to any one of claims 1 to 5, wherein the forming paper is wrapped on the outer sides of the acetate fiber filter stick (2) and the double-layer filter stick (1), and the acetate fiber filter stick (2) and the double-layer filter stick (1) are coaxially spliced.

7. A cigarette comprising the composite filter rod of claim 6.

8. A method of making the cigarette of claim 7, comprising the steps of:

preparing an inner layer filter stick by using a first filter stick forming device, preparing an outer layer filter stick by using a second filter stick forming device, compounding the inner layer filter stick and the outer layer filter stick, and slitting the compounded filter stick to obtain a double-layer filter stick (1).

9. The preparation method according to claim 8, wherein in the preparation of the inner filter rod, the first filter rod forming device adopts a steam inner sleeve and a cooling inner sleeve with the diameter of 5mm-6mm, and diacetic acid fiber tows containing triacetin are subjected to rapid forming under the action of steam with the high temperature of 120-170 ℃ and the high pressure of 0.1-0.2 MPa to obtain the inner filter rod, the single-strand diacetate fiber tows with the filament density of 5-7 denier and the tow total density of 20000-40000 denier are adopted for preparing the inner filter rod, and the added triacetin accounts for 15-30% of the mass of the diacetic acid fiber tows;

when the outer layer filter stick is prepared, the second filter stick forming device adopts the steam inner sleeve and the cooling inner sleeve with the diameters of 7-8 mm, the diacetic fiber tows containing the glyceryl triacetate are quickly formed under the action of steam with the high temperature of 120-170 ℃ and the high pressure of 0.1-0.2 MPa to obtain the outer layer filter stick, the prepared outer layer filter stick adopts the diacetic fiber tows with the density of two strands of single threads of 5-7 deniers and the total density of the tows of 20000-40000 deniers, or the density of the single strands of 5-7 deniers and the total density of the tows of 40000-80000 deniers, and the added glyceryl triacetate accounts for 15-30% of the mass of the diacetic fiber tows.

10. The preparation method according to claim 8, wherein after the double-layer filter stick (1) is obtained, a forming paper is used for compounding the acetate fiber filter stick (2) and the double-layer filter stick (1) to prepare a composite filter stick, and then the composite filter stick is compounded with the cigarette (3) to obtain the cigarette.

Images