CN112890279A - Cooling film for heating non-combustion cigarette filter tip, cooling filter tip and preparation method - Google Patents
Cooling film for heating non-combustion cigarette filter tip, cooling filter tip and preparation method Download PDFInfo
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- CN112890279A CN112890279A CN202110083804.2A CN202110083804A CN112890279A CN 112890279 A CN112890279 A CN 112890279A CN 202110083804 A CN202110083804 A CN 202110083804A CN 112890279 A CN112890279 A CN 112890279A
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- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 79
- 238000001816 cooling Methods 0.000 title claims abstract description 79
- 238000010438 heat treatment Methods 0.000 title claims abstract description 50
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 12
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 134
- 239000002184 metal Substances 0.000 claims abstract description 134
- 239000000463 material Substances 0.000 claims abstract description 24
- 238000010521 absorption reaction Methods 0.000 claims abstract description 20
- JVTAAEKCZFNVCJ-UWTATZPHSA-N D-lactic acid Chemical compound C[C@@H](O)C(O)=O JVTAAEKCZFNVCJ-UWTATZPHSA-N 0.000 claims abstract description 5
- 229920000954 Polyglycolide Polymers 0.000 claims abstract description 5
- 229940022769 d- lactic acid Drugs 0.000 claims abstract description 5
- 229920001432 poly(L-lactide) Polymers 0.000 claims abstract description 5
- 229920001610 polycaprolactone Polymers 0.000 claims abstract description 5
- 239000004632 polycaprolactone Substances 0.000 claims abstract description 5
- 239000004633 polyglycolic acid Substances 0.000 claims abstract description 5
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 4
- 229920000117 poly(dioxanone) Polymers 0.000 claims abstract description 4
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 23
- 238000004049 embossing Methods 0.000 claims description 22
- 238000007731 hot pressing Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 239000000779 smoke Substances 0.000 abstract description 14
- 230000000391 smoking effect Effects 0.000 abstract description 8
- 239000002861 polymer material Substances 0.000 abstract description 5
- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
- 238000012546 transfer Methods 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 description 20
- 230000000694 effects Effects 0.000 description 8
- 239000012528 membrane Substances 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 210000000214 mouth Anatomy 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 229920002463 poly(p-dioxanone) polymer Polymers 0.000 description 1
- 239000004626 polylactic acid Substances 0.000 description 1
- 229920006381 polylactic acid film Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/04—Tobacco smoke filters characterised by their shape or structure
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
The invention discloses a cooling film for a heating non-combustible cigarette, a cooling filter tip and a preparation method thereof, wherein the cooling film for the heating non-combustible cigarette filter tip comprises a first metal layer, a heat absorption layer and a second metal layer; the heat absorption layer is positioned between the first metal layer and the second metal layer and is at least one of poly-L-lactic acid, poly-D-lactic acid, polyglycolic acid, poly-p-dioxanone, polycaprolactone and polyethylene glycol; the materials of the first metal layer and the second metal layer are the same or different. The cooling film for the heating non-combustion cigarette filter adopts a sandwich structure, the metal layer can efficiently and rapidly transfer heat to the heat-absorbing layer, and the crystalline polymer material in the middle absorbs heat through melting, so that the cooling efficiency of smoke is effectively improved. Moreover, the upper and lower metal layers of the cooling film with the sandwich structure can effectively reduce the sticky flow of the middle heat absorbing layer after being heated and melted, thereby improving the problem of increased smoking resistance.
Description
Technical Field
The invention relates to the field of cigarette manufacturing, in particular to a cooling film for a cigarette filter which is not combusted by heating, a cooling filter and a preparation method thereof.
Background
The problem of higher smoke temperature still exists in the smoke temperature of the cigarette which is not burnt when being heated, harmful substances in the smoke are greatly reduced, and the smoke temperature is still far higher than the temperature which can be endured by the oral cavity. The cooling filter tip can greatly reduce the temperature of the smoke to the degree that the mouth feels comfortable, which has important influence on the smoking experience of heating the non-burning cigarette.
The existing smoke cooling technology for heating non-combustible cigarettes generally adopts special materials to manufacture a cooling filter tip, and the materials comprise polylactic acid films, polylactic acid fiber braided bundles and the like. However, the existing cooling filter tip has the problems of limited cooling effect and increased smoking resistance after being heated. The increase of smoking resistance of the temperature-reducing filter after being heated is mainly caused by the fact that certain components in the filter flow after phase change.
Therefore, how to provide a technical problem which can effectively improve the cooling effect and prevent the suction resistance of the filter tip from being greatly changed after being heated becomes an urgent need to be solved in the field.
Disclosure of Invention
The invention aims to provide a new technical scheme of a cooling film for heating a non-burning cigarette filter, which can effectively improve the cooling effect and keep the suction resistance after heating.
According to a first aspect of the present invention, there is provided a cooling film for heating a non-burning cigarette filter.
The cooling film for the cigarette filter with the non-combustion heating function comprises a first metal layer, a heat absorption layer and a second metal layer; wherein,
the heat absorption layer is positioned between the first metal layer and the second metal layer and is at least one of poly-L-lactic acid, poly-D-lactic acid, polyglycolic acid, poly-p-dioxanone, polycaprolactone and polyethylene glycol;
the materials of the first metal layer and the second metal layer are the same or different.
Optionally, the materials of the first metal layer and the second metal layer are different, and the thermal conductivity of the first metal layer is greater than that of the second metal layer.
Optionally, the first metal layer is made of copper, and the second metal layer is made of aluminum.
Optionally, the thicknesses of the first metal layer and the second metal layer are 10 μm to 100 μm, and the thicknesses of the first metal layer and the second metal layer are different;
the thickness of the heat absorbing layer is 50-200 μm.
According to a second aspect of the present invention, there is provided a heated unfired cigarette cooling filter.
The non-burning heating cigarette filter comprises forming paper and the cooling film for the non-burning heating cigarette filter; wherein,
the forming paper wraps the cooling film for the cigarette filter which is not burnt when being heated.
According to a third aspect of the invention, a preparation method of the cooling film for the non-combustion heating cigarette filter is provided.
The cooling film for the cigarette filter with the non-combustion function comprises the following steps:
(1) stacking the first metal layer, the heat absorption layer and the second metal layer in sequence;
(2) and carrying out hot-pressing treatment on the first metal layer, the heat absorbing layer and the second metal layer which are stacked together to obtain the cooling film for the cigarette filter which is heated and does not burn.
Optionally, the hot pressing conditions in step (2) are as follows:
the pressing temperature is 30-225 ℃, the pressing time is 0.1-2 h, and the pressing pressure is 0.1kg/cm2-1kg/cm2。
According to a fourth aspect of the invention, a preparation method of the cigarette cooling filter tip without burning is provided.
The preparation method of the cigarette filter tip capable of cooling without burning comprises the following steps:
(1) stacking the first metal layer, the heat absorption layer and the second metal layer in sequence;
(2) carrying out hot-pressing treatment on the first metal layer, the heat absorption layer and the second metal layer which are stacked together to obtain a cooling film for heating the non-combustible cigarette filter;
(3) embossing the temperature-reducing film for burning the cigarette filter tip after heating to obtain an embossed film;
(4) gathering the embossed film to obtain an embossed film column;
(5) and (3) wrapping the embossing film column by using forming paper to obtain the cigarette cooling filter tip which is heated and does not burn.
Optionally, the hot pressing conditions in step (2) are as follows:
the pressing temperature is 30-225 ℃, the pressing time is 0.1-2 h, and the pressing pressure is 0.1kg/cm2-1kg/cm2。
Optionally, the embossing width of the embossing film in the step (3) is 1mm-5 mm.
The utility model discloses a heating is cooling film for non-burning cigarette filter adopts metal/macromolecular material/metal three-layer sandwich structure, and first metal level and second metal level can transmit the heat rapidly for the heat-sink shell with the heat high-efficiently, and the crystalline macromolecular material that is located in the middle absorbs heat through the melting in a large number, has effectively promoted the cooling efficiency to the flue gas. Moreover, the upper and lower metal layers of the cooling film with the sandwich structure can effectively reduce the sticky flow of the middle heat absorbing layer after being heated and melted, thereby improving the problem of increased smoking resistance.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic structural diagram of an embodiment of a cooling film for heating a non-burning cigarette filter according to the present disclosure.
FIG. 2 is a schematic structural diagram of an embossed film obtained after embossing treatment in an embodiment of the cooling film for a non-burning cigarette filter.
The figures are labeled as follows:
the solar cell comprises a first metal layer-1, a heat absorption layer-2, a second metal layer-3 and an embossed film-4.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
As shown in fig. 1, the cooling film for a heated non-burning cigarette filter of the present disclosure includes a first metal layer 1, a heat absorbing layer 2, and a second metal layer 3.
The heat sink layer 2 is located between the first metal layer 1 and the second metal layer 3. The heat absorption layer 2 is at least one of poly-L-lactic acid, poly-D-lactic acid, polyglycolic acid, poly-p-dioxanone, polycaprolactone and polyethylene glycol. The skilled person can select a suitable material for the heat absorbing layer 2 according to practical requirements.
The materials of the first metal layer 1 and the second metal layer 3 are the same or different. The materials of the first metal layer 1 and the second metal layer 3 can be flexibly selected according to actual requirements. For example, the first metal layer 1 and the second metal layer 3 are both copper, or the first metal layer 1 and the second metal layer 3 are both aluminum, or the first metal layer 1 and the second metal layer 3 are copper and aluminum, respectively.
The utility model discloses a heating is cooling membrane for non-burning cigarette filter adopts metal/macromolecular material/metal three-layer sandwich structure, and first metal level 1 and second metal level 3 can transmit the heat rapidly for heat-sink shell 2 high-efficiently, and the crystalline macromolecular material that is located the centre absorbs heat through the melting in a large number, has effectively promoted the cooling efficiency to the flue gas. Moreover, the upper and lower metal layers of the cooling film with the sandwich structure can effectively reduce the sticky flow of the middle heat absorbing layer after being heated and melted, thereby improving the problem of increased smoking resistance.
In an embodiment of the cooling film for heating a non-burning cigarette filter, the materials of the first metal layer 1 and the second metal layer 3 are different, and the thermal conductivity of the first metal layer 1 is greater than that of the second metal layer 3.
By arranging the materials of the first metal layer 1 and the second metal layer 3 to be different, and selecting the thermal conductivity of the first metal layer 1 to be larger than that of the second metal layer 3, the difference in heat transfer between different side surfaces of the heat absorbing layer 2 is facilitated, and therefore, the tacky flow of the heat absorbing layer in the middle after being heated and melted is effectively avoided.
Further, the material of the first metal layer 1 is copper, and the material of the second metal layer 3 is aluminum.
In one embodiment of the cooling film for a non-burning cigarette filter, the thickness of the first metal layer 1 and the second metal layer 3 is 10-100 μm, and the thickness of the first metal layer 1 is different from that of the second metal layer 3. In particular, the thickness of the layer with the higher thermal conductivity of the first metal layer 1 and the second metal layer 3 may be set to be thinner to increase the difference in heat transfer between the different side surfaces of the heat absorbing layer 2. The thickness of the heat absorbing layer is 50-200 μm.
In order to improve the cooling efficiency and reduce the sticky flow of the middle heat absorbing layer after being heated and melted, the thickness ratio of the first metal layer 1, the heat absorbing layer 2 and the second metal layer 3 can be 1 (1-4) to (1-2).
The present disclosure also provides a cigarette cooling filter tip without burning by heating, comprising the forming paper and the cooling film for the cigarette filter tip without burning by heating of the present disclosure. The forming paper wraps the cooling film for the non-combustion cigarette filter.
The temperature-reducing film wrapped by the forming paper and used for the cigarette filter which is not burnt by heating can be formed in a rolling or laminating mode. The forming paper may be of the type well known in the art and is not further limited by this disclosure.
The heating of this open heating does not burn cigarette cooling filter is not burning for cigarette filter cooling membrane adopt metal/macromolecular material metal three-layer sandwich structure, and first metal level 1 and second metal level 3 can transmit the heat rapidly for heat-sink shell 2 high-efficiently, and the crystalline macromolecular material that is located the centre passes through a large amount of endotherms of melting, has effectively promoted the cooling efficiency of filter to the flue gas. Moreover, the upper and lower metal layers of the cooling film with the sandwich structure can effectively reduce the sticky flow of the middle heat absorbing layer after being heated and melted, thereby improving the problem of increased smoking resistance of the filter tip.
The present disclosure also provides a method for preparing the cooling film for a cigarette filter with non-burning heating, comprising the following steps:
step (1): the first metal layer, the heat absorbing layer and the second metal layer are stacked together in sequence.
Step (2): and carrying out hot-pressing treatment on the first metal layer, the heat absorbing layer and the second metal layer which are stacked together to obtain the cooling film for the cigarette filter which is heated and does not burn.
According to the preparation method of the cooling film for the heating non-combustion cigarette filter, the first metal layer, the heat absorption layer and the second metal layer which are stacked together are subjected to hot pressing, so that the crystallinity of the heat absorption layer in the middle is improved, the heat of smoke absorbed by the cooling film for the heating non-combustion cigarette filter can be effectively improved, and the cooling effect is improved.
In one embodiment of the method for preparing a cooling film for a non-burning cigarette filter, the hot pressing conditions in step (2) are as follows:
the pressing temperature is 30-225 ℃, the pressing time is 0.1-2 h, and the pressing pressure is 0.1kg/cm2-1kg/cm2。
The hot pressing effect of the hot pressing treatment according to the hot pressing treatment conditions is good, and the crystallinity of the heat absorption layer positioned in the middle is favorably further improved.
The present disclosure also provides a method for preparing a cigarette filter tip capable of cooling without burning, comprising the following steps:
step (1): the first metal layer, the heat absorbing layer and the second metal layer are stacked together in sequence.
Step (2): and carrying out hot-pressing treatment on the first metal layer, the heat absorbing layer and the second metal layer which are stacked together to obtain the cooling film for the heating non-combustion cigarette filter.
And (3): the temperature-lowering film for cigarette filters heated for combustion is subjected to embossing treatment to obtain an embossed film (shown as an embossed film 4 in fig. 2). The embossing pressure may be 0.2kg to 1 kg.
And (4): and gathering the embossed film to obtain the embossed film column. The gathering process may be, for example, rolling embossed films together. In a specific implementation, the layer with the larger thermal conductivity coefficient of the first metal layer and the second metal layer may be located on one side, close to the central axis, of the embossed film column, and the layer with the smaller thermal conductivity coefficient of the first metal layer and the second metal layer may be located on one side, far away from the central axis, of the embossed film column. The embossed film column with the structure is more beneficial to reducing the tacky flow of the middle heat absorbing layer after being heated and melted.
And (5): and (3) wrapping the embossing film column by using forming paper to obtain the cigarette cooling filter tip which is heated and does not burn.
According to the preparation method of the cigarette filter tip capable of heating and not burning, the first metal layer, the heat absorption layer and the second metal layer which are stacked together are subjected to hot pressing, so that the crystallinity of the heat absorption layer in the middle is improved, the smoke heat absorbed by the cooling film for heating and not burning the cigarette filter tip can be effectively improved, and the cooling effect is improved. Moreover, the cooling film for the heating non-combustible cigarette filter is subjected to embossing treatment and then is gathered, so that the ventilation rate of the cooling filter can be controlled more conveniently, and the smoking effect is ensured.
In one embodiment of the method for preparing a temperature-reducing filter tip of a non-burning cigarette, the hot-pressing conditions in the step (2) are as follows:
the pressing temperature is 30-225 ℃, the pressing time is 0.1-2 h, and the pressing pressure is 0.1kg/cm2-1kg/cm2。
The hot pressing effect of the hot pressing treatment according to the hot pressing treatment conditions is good, and the crystallinity of the heat absorption layer positioned in the middle is favorably further improved.
In one embodiment of the method for preparing the cigarette filter tip with the function of heating and cooling the non-burning cigarette, the embossing width of the embossing film in the step (3) is 1mm-5 mm.
The embossing film with the embossing width has a good cooling effect.
The experimental procedures used in the examples below are conventional unless otherwise specified, the materials and reagents used therein are commercially available, and the equipment used in the experiments are well known to those skilled in the art without otherwise specified.
Example 1
(1) Stacking a poly-L-lactic acid film and a copper metal film together to form a metal/high polymer material/metal three-layer sandwich structure;
(2) the sandwich structure was heated at 120 ℃ and 1kg/cm2Pressing for 2 hours under pressure to obtain a composite membrane with a compact structure;
(3) and embossing the composite film to the width of 1mm, gathering and wrapping the composite film by using forming paper, and cutting the composite film into sections to obtain the non-burning cigarette heating and cooling filter tip S1.
Tests show that the smoke reduction temperature of the cigarette which is not combusted by heating S1 is 120-130 ℃.
Example 2
(1) The poly-D-lactic acid film and the aluminum metal film are stacked together to form a metal/high polymer material/metal three-layer sandwich structure;
(2) the sandwich structure was heated at 90 ℃ and 1kg/cm2Pressing for 1 hour under pressure to obtain a composite membrane with a compact structure;
(3) and (3) embossing the composite film to a width of 3mm, gathering and wrapping the composite film by using forming paper, and cutting the composite film into sections to obtain the non-burning cigarette heating and cooling filter tip S2.
Tests show that the smoke reduction temperature of the cigarette which is not burnt by heating S2 is 100-120 ℃.
Example 3
(1) The polyglycolic acid film and the copper metal film are stacked together to form a metal/high molecular material/metal three-layer sandwich structure;
(2) the sandwich structure was heated at 225 ℃ and 0.1kg/cm2Pressing for 0.1 hour under pressure to obtain a composite membrane with a compact structure;
(3) and (3) embossing the composite film to 5mm in width, gathering and wrapping the composite film by using forming paper, and cutting the composite film into sections to obtain the non-burning cigarette heating and cooling filter tip S3.
Tests show that the smoke reduction temperature of the cigarette which is not combusted by heating S3 is 95-110 ℃.
Example 4
(1) Stacking a poly (p-dioxanone) film and an aluminum metal film together to form a metal/high polymer material/metal three-layer sandwich structure;
(2) the sandwich structure was heated at 70 ℃ and 0.5kg/cm2Pressing for 0.5 hour under pressure to obtain a composite membrane with a compact structure;
(3) embossing the composite film with the width of 2mm, gathering and wrapping the composite film by using forming paper, and cutting the composite film into sections to obtain the non-burning cigarette heating and cooling filter tip S4.
Tests show that the smoke reduction temperature of the cigarette which is not burnt by heating S4 is 90-120 ℃.
Example 5
(1) Stacking a polycaprolactone film and a copper metal film together to form a metal/high polymer material/metal three-layer sandwich structure;
(2) the sandwich structure was heated at 30 ℃ and 0.1kg/cm2Pressing for 1.5 hours under pressure to obtain a composite membrane with a compact structure;
(3) and (3) embossing the composite film to 4mm in width, gathering and wrapping the composite film by using forming paper, and cutting the composite film into sections to obtain the non-burning cigarette heating and cooling filter tip S5.
Tests show that the smoke reduction temperature of the cigarette which is not combusted by heating S5 is 80-100 ℃.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. A cooling film for heating a non-burning cigarette filter is characterized by comprising a first metal layer, a heat absorption layer and a second metal layer; wherein,
the heat absorption layer is positioned between the first metal layer and the second metal layer and is at least one of poly-L-lactic acid, poly-D-lactic acid, polyglycolic acid, poly-p-dioxanone, polycaprolactone and polyethylene glycol;
the materials of the first metal layer and the second metal layer are the same or different.
2. The film for reducing temperature for a heated non-combustible cigarette filter according to claim 1, wherein the first metal layer and the second metal layer are made of different materials, and the thermal conductivity of the first metal layer is greater than that of the second metal layer.
3. The film for reducing temperature of a heated nonflammable cigarette filter according to claim 2, wherein the material of the first metal layer is copper and the material of the second metal layer is aluminum.
4. The film for heating a non-combustible cigarette filter according to claim 1, wherein the first metal layer and the second metal layer have a thickness of 10 μm to 100 μm, and the first metal layer and the second metal layer have different thicknesses;
the thickness of the heat absorbing layer is 50-200 μm.
5. A temperature-reducing filter for a non-combustible heated cigarette, which comprises a formed paper and the temperature-reducing film for a non-combustible heated cigarette filter according to any one of claims 1 to 4; wherein,
the forming paper wraps the cooling film for the cigarette filter which is not burnt when being heated.
6. A method for preparing a cooling film for a non-combustible heating cigarette filter according to any one of claims 1 to 4, comprising the steps of:
(1) stacking the first metal layer, the heat absorption layer and the second metal layer in sequence;
(2) and carrying out hot-pressing treatment on the first metal layer, the heat absorbing layer and the second metal layer which are stacked together to obtain the cooling film for the cigarette filter which is heated and does not burn.
7. The method for preparing a cooling film for a heated non-combustible cigarette filter according to claim 6, wherein the hot-pressing conditions in the step (2) are as follows:
the pressing temperature is 30-225 ℃, the pressing time is 0.1-2 h, and the pressing pressure is 0.1kg/cm2-1kg/cm2。
8. A method for preparing a filter tip for cooling a cigarette which is not combusted by heat as set forth in claim 5, comprising the steps of:
(1) stacking the first metal layer, the heat absorption layer and the second metal layer in sequence;
(2) carrying out hot-pressing treatment on the first metal layer, the heat absorption layer and the second metal layer which are stacked together to obtain a cooling film for heating the non-combustible cigarette filter;
(3) embossing the temperature-reducing film for burning the cigarette filter tip after heating to obtain an embossed film;
(4) gathering the embossed film to obtain an embossed film column;
(5) and (3) wrapping the embossing film column by using forming paper to obtain the cigarette cooling filter tip which is heated and does not burn.
9. The method for preparing a filter tip of a non-combustible cigarette according to claim 8, wherein the hot pressing conditions in the step (2) are as follows:
the pressing temperature is 30-225 ℃, the pressing time is 0.1-2 h, and the pressing pressure is 0.1kg/cm2-1kg/cm2。
10. The method for preparing a filter tip of a cigarette with no combustion by heating according to claim 8, wherein the embossing width of the embossing film in the step (3) is 1mm to 5 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110083804.2A CN112890279A (en) | 2021-01-21 | 2021-01-21 | Cooling film for heating non-combustion cigarette filter tip, cooling filter tip and preparation method |
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| CN202110083804.2A CN112890279A (en) | 2021-01-21 | 2021-01-21 | Cooling film for heating non-combustion cigarette filter tip, cooling filter tip and preparation method |
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| CN112890279A true CN112890279A (en) | 2021-06-04 |
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| CN202110083804.2A Pending CN112890279A (en) | 2021-01-21 | 2021-01-21 | Cooling film for heating non-combustion cigarette filter tip, cooling filter tip and preparation method |
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| CN (1) | CN112890279A (en) |
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| US5556711A (en) * | 1992-06-29 | 1996-09-17 | Mitsui Toatsu Chemicals, Inc. | Decomposable composite material |
| CN102729486A (en) * | 2012-06-05 | 2012-10-17 | 东华大学 | Preparation method of thermoplastic resin/corn husk composite material |
| CN102786905A (en) * | 2011-08-19 | 2012-11-21 | 苏州赛伍应用技术有限公司 | Polyester adhesive and thin-film laminated body using the same |
| CN107997232A (en) * | 2017-12-21 | 2018-05-08 | 红塔烟草(集团)有限责任公司 | A kind of membranoid substance gathers rod molding machine |
| CN108523220A (en) * | 2018-06-20 | 2018-09-14 | 湖北中烟工业有限责任公司 | A kind of improved cooling filter stick and the low temperature cigarette containing the filter stick |
| CN112205672A (en) * | 2019-07-11 | 2021-01-12 | 湖北中烟工业有限责任公司 | Cooling section material for low-temperature heating non-combustible cigarettes and preparation method thereof |
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- 2021-01-21 CN CN202110083804.2A patent/CN112890279A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5556711A (en) * | 1992-06-29 | 1996-09-17 | Mitsui Toatsu Chemicals, Inc. | Decomposable composite material |
| CN102786905A (en) * | 2011-08-19 | 2012-11-21 | 苏州赛伍应用技术有限公司 | Polyester adhesive and thin-film laminated body using the same |
| CN102729486A (en) * | 2012-06-05 | 2012-10-17 | 东华大学 | Preparation method of thermoplastic resin/corn husk composite material |
| CN107997232A (en) * | 2017-12-21 | 2018-05-08 | 红塔烟草(集团)有限责任公司 | A kind of membranoid substance gathers rod molding machine |
| CN108523220A (en) * | 2018-06-20 | 2018-09-14 | 湖北中烟工业有限责任公司 | A kind of improved cooling filter stick and the low temperature cigarette containing the filter stick |
| CN112205672A (en) * | 2019-07-11 | 2021-01-12 | 湖北中烟工业有限责任公司 | Cooling section material for low-temperature heating non-combustible cigarettes and preparation method thereof |
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