CN112852124B

CN112852124B - Cooling piece

Info

Publication number: CN112852124B
Application number: CN202110174647.6A
Authority: CN
Inventors: 刘润昌; 张建波; 范云常; 邹由; 高朝; 田力; 马涛; 徐潇潇; 湛关靖
Original assignee: Yunnan Changyi Technology Co ltd
Current assignee: Yunnan Changyi Technology Co ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2022-11-29
Anticipated expiration: 2041-02-07
Also published as: CN112852124A

Abstract

The invention provides a cooling piece, which belongs to the technical field of suction products and is prepared from 3-30 parts of a first polymer, 50-80 parts of a second polymer and 3-7 parts of a filler, wherein the first polymer is prepared by mixing polybutylene adipate and polyethylene glycol according to the mass ratio of (9-10): 0-1; the second polymer is formed by mixing master batches prepared by the waste acetate fiber filter stick and a thermoplastic material according to the mass ratio of (1-2): 2-1. The master batch prepared from the waste acetate fiber filter stick with good ductility and the polybutylene adipate with good heat absorption performance are adopted, and the proportion of the polybutylene adipate in the raw materials of the cooling piece is limited, so that the product has good processing performance and cooling performance, and the problem of low yield caused by poor processing performance of the conventional cooling piece is solved.

Description

Cooling piece

Technical Field

The invention belongs to the technical field of smoking products, and particularly relates to a cooling piece of a smoking product.

Background

The cooling element is an important component of a traditional ignition type or a novel heating type smoking product. The heated smoking article delivers aerosol with a 90% or greater reduction in harmful components compared to conventional smoking articles and thus has a lower hazard. The aerosol desired by the consumer is obtained by heating an smoking article comprising an aerosol generating material using a heating means. The heating appliance temperature is typically between 240 c and 340 c, which can result in a high temperature aerosol being delivered to the consumer's mouth, causing discomfort, and typically the optimum temperature to reach the mouth should be below 48 c. Accordingly, heated smoking articles generally comprise a piece of aerosol-generating material and a cooling member connected to the piece of aerosol-generating material. To ensure that the amount of smoke delivered to the mouth by the heated smoking article is sufficient, the cooling element generally needs to have two functions, one being cooling performance and the other being low resistance to smoke entrapment.

Cooling parts on the market are various, generally, whether the cooling effect of cooling parts can make aerial fog possess suitable temperature when reaching the oral cavity is investigated, the processability of cooling parts is less researched, the processability refers to cutting performance, resilience performance and extensibility performance presented when preparing suction products, the cooling parts on the market at present have the problem of brittle fracture or too strong toughness, and no resilience performance is caused by too large brittleness. The brittle fracture or the over-strong toughness can cause poor cutting performance of the cooling part, and the cutting machine is easy to stop; the cooling piece has low rebound resilience, which is not beneficial to combining with other functional sections (such as a smoke generation section or a filtering section); if the ductility of the cooling part is not high, an ideal cooling part shape is difficult to manufacture, and the yield of the cooling part is not high due to cracking caused by excessive hardness.

Disclosure of Invention

In order to improve the processability of the cooling piece, the invention provides the cooling piece, so that the cooling piece has good cooling effect and processability.

The invention is realized by the following technical scheme: a cooling part is prepared from the following raw materials in parts by mass:

3-30 parts of a first polymer, 50-80 parts of a second polymer and 3-7 parts of a filler;

the first polymer is formed by mixing the following components in percentage by mass:

polybutylene adipate (PBA) = (9-10) = (0-1);

the second polymer is prepared by mixing the following components in percentage by mass:

preparing master batches of the waste cellulose acetate filter rod, namely thermoplastic material (1-2) and (2-1);

the filler is one or more of talcum powder, calcium carbonate and calcium stearate.

The polyethylene glycol is one or more of polyethylene glycols with molecular weight of more than 2000.

The thermoplastic material is one or more of poly (butylene adipate-terephthalate) (PBAT), poly (butylene succinate) (PBS), poly (butylene terephthalate) (PBT), poly (butylene terephthalate) (PFT) and polylactic acid (PLA).

The master batch prepared from the waste acetate fiber filter stick is prepared by a method of CN202010636823.9 regeneration method and application of the waste acetate fiber filter stick, and specifically comprises the following steps:

(1) Cutting the waste acetate fiber filter rod into acetate fiber filter rod sections;

(2) Melting and granulating the waste acetate fiber filter rod section: melting and extruding the acetate fiber filter rod section at the temperature of 110-230 ℃, cooling to room temperature, and granulating to prepare acetate fiber master batch.

Further, the inner surface of the cooling part prepared from the raw materials is coated with a first coating and/or the outer wall of the cooling part is coated with a second coating.

The first coating is prepared by mixing a cooling material and a fragrant material, and the mass ratio is as follows: cooling material: aroma material = (90-100): 0-10).

The second coating is prepared by mixing a filler and edible gum, and the mass ratio is as follows: filling material: edible gum = (10-30): 30-100).

The cooling material is polyethylene glycol (PEG) and/or polybutylene adipate (PBA).

The filler is talcum powder and/or calcium carbonate.

The edible gum is one or more of acacia, guar gum and carrageenan.

The aroma material is one or more of conventional aroma substances, such as menthol, menthone, menthol, linalool, beta-damascenone, eugenol, solanaceae plant extract, coffee extract, tea extract, nut extract, tomato extract, blueberry extract, sweet orange extract, dried orange peel extract, hami melon extract, etc.

Preparing raw materials according to the scheme, melting the raw materials, extruding and stretching by a screw, shaping and cutting to obtain the cooling piece, and further adding a coating process step before cutting to enable the required cooling piece to be provided with a first coating and/or a second coating.

The invention has the beneficial effects that:

the master batches prepared from the waste acetate fiber filter stick with good ductility and the polybutylene adipate (PBA) with good heat absorption performance are adopted, the proportion of the PBA in the raw materials of the cooling piece is limited, the prepared cooling piece can enable the temperature of smoke reaching the oral cavity to reach a proper degree, and meanwhile, the prepared cooling piece has certain tensile strength and impact strength so as to ensure that the cooling piece is continuously stretched and moved without breaking when being formed; the prepared cooling piece is moderate in brittle fracture or toughness, can be cut smoothly, has resilience performance, and can ensure smooth combination of the cooling piece and other materials, so that the cooling piece is convenient for continuous industrial processing, and the yield of suction products is improved.

Drawings

FIG. 1 is a TG/DSC plot of PBA;

FIG. 2 is a TG/DSC plot of PBAT;

FIG. 3 is a TG/DSC plot of PLA;

FIG. 4 is a schematic diagram of a smoking article construction;

wherein, 1-smoke generating material, 2-cooling piece and 3-acetate fiber rod.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments and the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

The cooling piece is made of the following raw materials:

30kg of polybutylene adipate (PBA), 25kg of master batch prepared by a waste acetate fiber filter stick, 25kg of polybutylene adipate-terephthalate (PBAT), 2.5kg of talcum powder and 0.5kg of calcium stearate;

the master batch prepared from the waste acetate fiber filter stick is prepared by adopting a method of CN202010636823.9 regeneration method and application of the waste acetate fiber filter stick, and specifically comprises the following steps:

(1) Cutting the waste acetate fiber filter stick containing the molding paper (cellulose, calcium carbonate and auxiliary agent), acetate fiber, glyceryl triacetate and adhesive into acetate fiber filter stick sections with the length of 2 mm;

(2) Melting and granulating the waste acetate fiber filter rod section: melting and extruding the acetate fiber filter rod section by a double-screw extruder at the temperature of 160 ℃, cooling to room temperature, and granulating to prepare the 2mm acetate fiber master batch.

Example 2

The cooling piece is made of the following raw materials:

27kg of polybutylene adipate (PBA), 3kg of polyethylene glycol with the molecular weight of 2000, 25kg of master batch prepared by the waste cellulose acetate filter stick, 25kg of polybutylene adipate-terephthalate (PBAT), 2.5kg of talcum powder and 0.5kg of calcium stearate.

The same procedure as in example 1 was repeated to prepare master batches from the waste cellulose acetate filter rods.

Example 3

The cooling piece is made of the following raw materials:

2.7kg of polybutylene adipate (PBA), 0.3kg of polyethylene glycol with the molecular weight of 4000, 26.7kg of master batch prepared by the waste cellulose acetate filter stick, 50kg of polybutylene adipate-terephthalate (PBAT), 3.3kg of polybutylene succinate (PBS), 5kg of talcum powder and 2kg of calcium carbonate.

Example 4

The cooling piece is made of the following raw materials:

20kg of polybutylene adipate (PBA), 1kg of polyethylene glycol with the molecular weight of 4000, 1kg of polyethylene glycol with the molecular weight of 2000, 60kg of master batch prepared by the waste cellulose acetate filter stick, 4.4kg of polybutylene terephthalate (PFT), 1.6kg of polylactic acid (PLA) and 5kg of calcium stearate.

Example 5

The cooling piece is made of the following raw materials:

3kg of polybutylene adipate (PBA), 33.4kg of master batch prepared by the waste acetate fiber filter stick, 10kg of polybutylene adipate-terephthalate (PBAT), 0.7kg of polybutylene terephthalate (PBT), 1kg of polybutylene succinate (PBS), 5kg of polylactic acid (PLA) and 3kg of talcum powder.

Example 6

Melting, screw extrusion stretching, shaping, coating a coating on the inner surface of the raw material of example 1, and cutting to obtain a cooling piece with a first coating, wherein the first coating is prepared by mixing polyethylene glycol (PEG) and menthol according to a mass ratio of 95.

Example 7

Melting, screw extrusion stretching, shaping, coating the outer wall with a coating and cutting the raw materials in the embodiment 1 to obtain a cooling part with a second coating, wherein the second coating is prepared by mixing talcum powder and Arabic gum according to a mass ratio of 20.

Example 8

Melting, screw extrusion stretching, sizing, coating inner and outer layers and cutting the raw materials of example 1 to obtain a cooling part with a first coating and a second coating, wherein the first coating is prepared by mixing polyethylene glycol (PEG), polybutylene adipate (PBA), coffee extract and linalool, and the cooling material is fragrance emitting material = 90: 10; the second coating layer is prepared by mixing pulvis Talci, acacia and guar gum, wherein the ratio of filler to edible gum is = 10: 100.

Example 9

Melting, screw extrusion stretching, sizing, coating coatings on the inner side and the outer side of the raw materials in the embodiment 1, and cutting to obtain a cooling piece with a first coating and a second coating, wherein the first coating is prepared by mixing polybutylene adipate (PBA), blueberry extract and eugenol, and the ratio of cooling materials to aroma materials is = 100: 1; the second coating layer is prepared by mixing talcum powder, calcium carbonate and carrageenan, and the filler is edible gum = 30: 30.

Comparative example 1

Just like in example 1, polybutylene adipate (PBA) was deleted, i.e. it was not used.

Comparative example 2

Just as in example 1, polybutylene adipate (PBA) was replaced with polybutylene adipate terephthalate (PBAT).

Comparative example 3

Just polybutylene adipate (PBA) in the raw material was replaced with polylactic acid (PLA) as in example 1.

Comparative example 4

In the same manner as in example 1, only the master batch prepared from the waste acetate fiber filter rods was deleted, that is, the master batch prepared from the waste acetate fiber filter rods was not used.

Comparative example 5

Only 25kg of master batch prepared from a waste cellulose acetate filter rod and 25kg of polybutylene adipate terephthalate (PBAT) were replaced with 50kg of polymethyl methacrylate (PMMA) in the same manner as in example 1.

Comparative example 6

Only 25kg of the master batch prepared from the waste filter stick of acetate fiber and 25kg of polybutylene adipate terephthalate (PBAT) were replaced with 34kg of the master batch prepared from the waste filter stick of acetate fiber and 16kg of polybutylene adipate terephthalate (PBAT) in the same manner as in example 1.

Comparative example 7

Only 25kg of the master batch prepared from the waste filter stick of acetate fiber and 25kg of polybutylene adipate terephthalate (PBAT) were replaced with 16kg of the master batch prepared from the waste filter stick of acetate fiber and 34kg of polybutylene adipate terephthalate (PBAT) as in example 1.

Comparative example 8

Only 30kg of polybutylene adipate (PBA), 25kg of master batch prepared from a waste cellulose acetate filter rod, and 25kg of polybutylene adipate-terephthalate (PBAT) were replaced with 30.5kg of polybutylene adipate (PBA), 24.5kg of master batch prepared from a waste cellulose acetate filter rod, and 24.5kg of polybutylene adipate-terephthalate (PBAT) in the same manner as in example 1.

Comparative example 9

Only 30kg of polybutylene adipate (PBA), 25kg of master batch prepared from a waste cellulose acetate filter rod, and 25kg of polybutylene adipate-terephthalate (PBAT) were replaced with 2.9kg of polybutylene adipate (PBA), 40.5kg of master batch prepared from a waste cellulose acetate filter rod, and 40.5kg of polybutylene adipate-terephthalate (PBAT) in the same manner as in example 1.

As shown in figure 4, the temperature reducing members prepared in each of the examples and comparative examples were combined with a conventional acetate rod of 23.85mm x 84mm gauge to produce a composite filter rod of the following repeating unit: a 23mm cooling element +7mm acetate rod, the individual repeat units of which are combined with the smoke producing material to form a smoking article, wherein the cooling element is adjacent the smoke producing material.

Smoking the smoking article with IQOS 3.0DUO smoking set, after heating, smoking program: suction 2s, interval 30s, suction capacity 55ml, and the peak smoke temperature at the 1 st to 8 th lip ends are shown in the following table (unit:. Degree. C.):

	1 st port	No. 2 port	No. 3 port	No. 4	No. 5	6 th port	7 th port	8 th port
									Example 1	44.2	43.1	42.5	41.8	41.2	40.8	40.1	39.0
Example 2	44.0	43.1	42.4	41.9	41.0	40.4	40.0	39.1
									Example 3	47.5	47.0	46.4	45.9	45.2	44.3	43.7	43.2
Example 4	46.2	45.5	45.0	44.6	44.0	43.4	42.7	42.1
									Example 5	46.3	45.5	44.9	44.2	43.7	43.3	42.6	42.0
Example 6	43.3	42.5	42.0	41.3	40.7	40.0	39.2	38.4
									Example 7	44.3	43.3	42.5	41.9	41.2	40.7	40.2	39.3
Example 8	43.0	42.4	41.7	41.1	40.5	40.0	39.3	38.2
									Example 9	43.1	42.1	41.4	40.8	40.0	39.3	38.7	38.0
Comparative example 1	58.8	58.0	57.3	56.4	55.8	55.1	54.2	53.4
									Comparative example 2	59.2	58.3	57.5	56.4	55.8	55.0	54.2	53.5
Comparative example 3	56.4	56.2	55.7	54.9	54.0	53.3	52.8	52.2
									Comparative example 4	43.3	42.3	41.5	40.9	40.2	39.3	38.5	37.9
Comparative example 5	44.6	43.6	42.8	42.0	41.4	40.7	40.0	40.6
									Comparative example 6	44.3	43.2	42.5	41.7	41.0	40.4	39.7	39.1
Comparative example 7	44.9	44.1	43.2	42.3	41.3	40.5	39.9	39.3
									Comparative example 8	49.2	48.8	48.1	47.2	46.5	46.0	45.5	45.3
Comparative example 9	49.5	49.0	48.4	47.3	46.8	46.1	45.5	45.2

As can be seen from the above table, the first polymer of the examples has a significant effect of reducing the temperature of the gas stream, and the temperature of the flue gas at the lip end is lower than 48 ℃; the higher the proportion of the first polymer, the better the cooling effect. Examples 6, 7, 8, 9 show that the first coating has the effect of further reducing the temperature of the flue gas stream. Comparative examples 1, 2, 3, 8 and 9 did not reach a comfortable smoke temperature, above 48 ℃, which is generally considered to be a mouth comfort temperature below 48 ℃.

Comparative examples 4, 5, 6, 7 show that the cooling effect of the cooling element is still significant regardless of the change in the second polymer, as long as the proportion of the first polymer is ensured.

Referring to fig. 1 to 3, polybutylene adipate (PBA) has good absorption performance and can play a role of cooling, for example, in a temperature range of 30 to 300 ℃, the difference of the heat absorption performance of PBA, PBAT and PLA is as follows:

PBA heat sink performance: > 50J/g (> 150J/g);

PBAT heat sink performance: less than 10J/g;

heat absorption performance of PLA: < 25J/g.

The cooling elements made in the examples and comparative examples were combined with conventional acetate sticks of 23.85mm x 84mm gauge to produce composite filter rods of the following repeating units: 23mm cooling piece +7mm acetate fiber rod. Performing a computer-on adaptability test by using 5 ten thousand cooling parts, inspecting the computer-on process, calculating the yield, and recording the result into the following table:

calculation standard of yield: the actual number of composite filter rods/the theoretical number of composite filter rods is multiplied by 100%.

Yields below 90% are considered unacceptable industrial levels.

In the conditions of examples 1, 2, 3, 4, 5 and 6, the composite filter stick is prepared by combining the cooling piece and the acetate fiber filter stick, and the finished product is more than 90% of the industrially acceptable level.

Examples 7, 8 and 9 show that the second coating is helpful for further improving the machine adaptability of the combination of the cooling piece and the acetate fiber filter stick, and the yield of the composite filter stick is improved to about 97%.

Comparative examples 1, 2, 3 compared to example 1, the composite filter rod yield decreased below the acceptable industrial quality, indicating that replacement of the first polymer would also affect on-machine suitability.

Compared with the results of the comparative example 4 and the example 1, the discarded acetate fiber master batches in the second polymer are removed, the cooling part is too soft, the on-machine adaptability of the cooling part is seriously influenced, and the yield is far lower than an acceptable level.

By comparing the results of comparative example 5 and example 1, it can be seen that the second polymeric material, which is too brittle (e.g., PMMA), cannot be combined with a heat absorbing material (e.g., PBA) to produce a cooling member suitable for combination with other materials (e.g., acetate filter rods), with yields well below acceptable levels.

By comparing the results of comparative example 6 and example 1, it can be seen that when the ratio of the waste acetate fiber masterbatch to the thermoplastic material in the second polymer is greater than 2:1, the composition produces cooler parts that are stiffer, cut affected, and have less resiliency, and on-machine suitability decreases to an unacceptable level.

By comparing the results of comparative example 7 and example 1, it can be seen that when the ratio of the waste acetate fiber masterbatch to the thermoplastic material in the second polymer is less than 1:2, the cooling part prepared from the composition is soft, has poor resilience, is not smooth in blanking and running, and has unacceptable reduced on-machine adaptability.

Compared with the comparative examples 8 and 9 and the example 1, the first polymer can be obtained to be beneficial to reducing the temperature, and the second polymer can be beneficial to improving the machine-mounting adaptability. When the first polymer is more than 30 parts and the second polymer is less than 50 parts, the on-machine adaptability is influenced, and the yield is reduced to below 90 percent and is an unacceptable level; when the first polymer is less than 3 parts and the second polymer is more than 80 parts, the cooling performance of the cooling part is affected, and the temperature of the smoke at the lip end is higher than an acceptable level of 48 ℃.

Claims

1. A cooling part is characterized by being prepared from the following raw materials in parts by mass:

polybutylene adipate: polyethylene glycol (9-10) = (0-1);

the filler is one or more of talcum powder, calcium carbonate and calcium stearate;

the thermoplastic material is one or more of poly (butylene adipate-terephthalate), poly (butylene succinate), poly (butylene terephthalate) and polylactic acid;

the master batch prepared from the waste acetate fiber filter stick is prepared by the following steps:

(2) Melting and granulating the waste acetate fiber filter rod section: melting and extruding the acetate fiber filter rod section at the temperature of 110-230 ℃, cooling to room temperature, and granulating to prepare acetate fiber master batch;

the inner surface of the cooling piece made of the raw materials is coated with a first coating and/or the outer wall of the cooling piece made of the raw materials is coated with a second coating;

the first coating is prepared by mixing a cooling material and a fragrant material, and the mass ratio is as follows: cooling material: aroma material = (90-100): 0-10); the second coating is prepared by mixing a filler and edible gum, and the mass ratio is as follows: filling material: edible gum = (10-30): 30-100).

2. A cooling member according to claim 1, wherein: the polyethylene glycol is one or more of polyethylene glycols with molecular weight of more than 2000.

3. A cooling member according to claim 1, wherein: the cooling material is polyethylene glycol and/or polybutylene adipate.

4. A cooling member according to claim 1, wherein: the filler is talcum powder and/or calcium carbonate.

5. A cooling member according to claim 1, wherein: the edible gum is one or more of acacia, guar gum and carrageenan.

6. A cooling member according to claim 1, wherein: the fragrant material is one or more of conventional fragrant substances: menthol, menthone, linalool, beta-damascenone, eugenol, solanaceae plant extract, coffee extract, tea extract, nut extract, blueberry extract, sweet orange extract, dried orange peel extract, and Hami melon extract.