WO2020000585A1

WO2020000585A1 - Degradable odor-generating component for non-burned cigarette and cigarette product

Info

Publication number: WO2020000585A1
Application number: PCT/CN2018/099159
Authority: WO
Inventors: 胡睿青; 王蕾
Original assignee: 常州龙途新材料科技有限公司
Priority date: 2018-06-27
Filing date: 2018-08-07
Publication date: 2020-01-02
Also published as: CN108685192A

Abstract

Disclosed is a degradable odor-generating component for non-burned cigarette. The odor-generating component is made of a biodegradable polylactic acid monofilament material, and the odor-generating component is manufactured by forming several pieces of the polylactic acid monofilament material into a rope-like or knitted structure by means of one or more processes from among weaving, knitting and twisting, and subsequently cutting same. The odor-generating component further comprises polylactic monofilaments, to which no fragrance is attached, and polylactic monofilaments, to the surface of which a fragrance is attached by means of a treatment. The original flavor of cigarette gas and the generation of a volatile aroma are respectively maintained as a hot air stream passes through a longitudinally extending passage defined by the polylactic monofilaments.

Description

Degradable odor generating element for non-burning smoke and cigarette product

Technical field

The present invention relates to a degradable odor generating element for non-burning smoke and a cigarette product.

Background technique

It is an indisputable fact that smoking is harmful to health. It has been reported that smoking is directly or indirectly linked to chronic obstructive pulmonary disease, cardiovascular disease, stroke, stomach ulcers, cataracts, and at least 12 tumors (especially lung cancer). )Associated. China is a large country in tobacco production and consumption. Epidemiological surveys show that the smoking rate in China is 35.8% and the smoking rate in men is 66.8%. It is estimated that 350 million smokers aged 15-69 years have been passively smoked. Reaching 540 million, according to the 2007 Ministry of Health report on smoking control in China, nearly one million people die of smoking-related diseases in China each year, of which 100,000 die of passive smoking-related diseases. In particular, the incidence of respiratory diseases and respiratory tumors is more closely related to cigarettes.

With the continuous development of technology in the tobacco industry and people's pursuit of "healthy" tobacco products, heated non-burning cigarettes have gradually entered everyone's field of vision. Compared with traditional burning cigarettes, non-burning cigarettes due to the content of harmful substances Fewer features have long been well received in the tobacco industry. In heated non-burning cigarettes, the tobacco is heated to about 350 degrees Celsius by electronic devices, which is much lower than the 800 degrees Celsius that traditional cigarettes burn. At lower temperatures, volatile substances such as nicotine and spices evaporate. While allowing smokers to smoke, it effectively reduces the generation of harmful substances such as smoke particles, tar and carbon monoxide, and there is no sidestream smoke, which greatly reduces the harm of second-hand smoke.

Tobacco flavors and fragrances are additives for tobacco products which are specially used for flavoring various tobacco products to make them produce a good smoke effect during smoking. With the development of society, people are more and more pursuing personalization, smokers have begun to pursue more flavored cigarette products, and the demand for heated non-burning cigarettes with various flavors is increasing.

Philip Morris Manufacturing Company applied for a cigarette product application number: CN104270970B, application date: December 28, 2012, an aerosol-generating product, including an aerosol-generating substrate, a volatile flavor-generating component, and a cigarette holder filter. The patented volatile aroma generating component concentrates the fragrance substance in the center portion of the low-resistance support web. The company has another patent application number: CN107072291A, application date: November 2, 2015, a method and equipment for manufacturing curled webs for aerosol-generating products, which uses special equipment to make webs.

For the above-mentioned non-burning cigarettes, when smoking, the fragrance substance is too concentrated, the volatilization area is small, and during the smoking process, the support web shrinks and deforms during the passage of high-temperature smoke, which brings smoke intensity changes to smokers. It feels that the production of supporting webs requires special equipment.

Summary of the invention

The invention proposes a degradable odor generating element and a cigarette product for non-burning smoke. The invention has a simple process and high production efficiency. The polymer material polylactic acid is used as biodegradable, which is more environmentally friendly.

The technical solution of the present invention is implemented as follows:

A degradable odor generating element for non-burning smoke, the odor generating element includes polylactic acid monofilament, and preferably, the diameter of the polylactic acid monofilament is 0.05 mm to 0.5 mm.

Preferably, the odor-generating element comprises a plurality of polylactic acid monofilaments arranged in parallel alignment with respect to a mainstream smoke direction.

Preferably, the polylactic acid monofilament includes a hollow monofilament, a monofilament having a circular cross-section, an monofilament having a cross-section in an oval shape, and a monofilament having a cross-section in a triangle shape, and a profiled monofilament having a cross-section of another geometry One or more of the silk.

Preferably, the odor generating element has a length of 5 mm to 40 mm and an outer diameter of 5 mm to 12 mm.

Preferably, the odor-generating element has a porosity of 40% to 80% in a direction parallel to the smoke, and a total surface area of 200-800mm2 per millimeter of length.

Preferably, the odor-generating element is a cylinder made by cutting a polylactic acid monofilament with no perfume attached, including one or more processes of weaving, knitting, and twisting to form a rope or knitted fabric structure, followed by cutting. Shaped elements, and the cylindrical elements are arranged in parallel alignment with respect to the mainstream smoke direction, and the original flavor of the smoke is maintained when the hot air flows through the longitudinally extending channel defined by the polylactic acid monofilament.

Preferably, the odor-generating element is made of polylactic acid monofilament and perfumed silk after being twisted or coated.

Preferably, the odor-generating element is processed from polylactic acid monofilament by impregnating a polylactic acid dilute solution containing a flavor additive.

Preferably, the odor-generating element is formed into a rope or a knit by a plurality of polylactic acid monofilaments impregnated with a polylactic acid dilute solution containing a fragrance additive, including one or more processes including weaving, knitting, and twisting. The cylindrical element is cut after the object structure, and the cylindrical element is arranged in parallel alignment with the mainstream smoke direction.

Preferably, the mass fraction of polylactic acid contained in the dilute solution of polylactic acid is 1-5%, and the mass ratio of polylactic acid to perfume additives is (1 to 5): 1.

Preferably, the flavor in the flavor additive and the flavor thread is one or more of menthol, eugenol, green mint, peppermint oil, cocoa powder, vanilla, cinnamon, fruit flavor and licorice.

A cigarette product includes the cigarette odor generating element.

Compared with the prior art, the beneficial effects of the present invention are:

(1) The polylactic acid material used in the present invention has good thermal stability, is used in non-combustion smoke, does not undergo thermal deformation, and can maintain good supporting performance in tobacco products, and can be used as an odor generating element in cigarettes. At the same time, when it is used with tobacco products, the odor generating element is added to lengthen the passage of smoke, which can reduce the temperature of the smoke and reduce the thermal stimulation of the smoker's respiratory tract when the smoke passes.

(2) The surface of the polylactic acid monofilament has been impregnated with a dilute solution of polylactic acid containing flavors, forming a layer of polylactic acid film containing flavors, which is woven, knitted or twisted into a rope or knitted fabric structure, compared with the existing odor In terms of the resulting structure, the specific surface area of the support is large, and the specific surface area of the film on the surface of the polylactic acid monofilament is also large, which increases the area of fragrance volatilization during use, ensuring that the fragrance can volatilize uniformly, lasting and mellow when used. Increased usability.

(3) Since the surface of the polylactic acid monofilament is covered with a polylactic acid film containing fragrance, the volatilization of the fragrance can be effectively controlled, and unnecessary volatilization of the fragrance before use is reduced.

(4) Due to the crystalline properties of the polylactic acid material, it can reduce the temperature of the smoke when the smoke passes, and the polylactic acid is not easily contracted by heat. The porosity formed by the rope or knitted fabric structure of the polylactic acid material is compared with other filling forms. In terms of porosity, it is not easy to shrink and deform to block the passage of smoke.

(5) The polylactic acid material used in the present invention has good biodegradability, is derived from renewable plant resources, and can be completely degraded into carbon dioxide and water by microorganisms after use. It is green and environmentally friendly, and is a recognized environmentally friendly material.

(6) The present invention adopts one or more of the processes of weaving, knitting and twisting, the production process is simple, the efficiency is high, and it is suitable for large-scale production.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative labor.

Figure 1 is a structure diagram of 8-ply braided network cable and 1-ply and 1-ply pressure.

Fig. 2 is an odor generating element composed of a twisted rope of a plurality of monofilaments.

Fig. 3 (1) is a structure diagram of a closed-knitted chain structure of a warp-knitted fabric; Fig. 3 (2) is a physical diagram of a knit-chain.

detailed description

In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described in combination with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

A degradable odor-generating element for non-burning smoke, the odor-generating element includes polylactic acid monofilament, the diameter of the polylactic acid monofilament is 0.05 mm to 0.5 mm, the outer diameter of the odor generation element is 5-12 mm, and the length It is 5-40mm.

In this embodiment, the odor-generating element includes a plurality of polylactic acid monofilaments arranged in parallel alignment with respect to the mainstream smoke direction. Preferably, the polylactic acid monofilament includes a hollow monofilament, a monofilament having a circular cross section, an monofilament having an oval cross section, a monofilament having a triangular cross section, and a shaped monofilament having a cross section of other geometric shapes. One or more of the silk.

The odor generating element has a porosity of 40% to 80% in a direction parallel to the smoke, and has a total surface area of 200-800mm2 per millimeter of length.

By designing a plurality of polylactic acid monofilaments to be arranged in the mainstream smoke direction, when the smoke passes through the element, on the one hand, the existing structure is simpler and easier to produce than the filter elements in the prior art, and on the other hand, it is increased. The contact area between the smoke and the polylactic acid monofilament improves the smoke absorption efficiency. At the same time, due to the use of polylactic acid material, it is not easily affected by the temperature of the flue gas and will not cause deformation and blockage.

The odor-generating element is a cylindrical element made of polylactic acid monofilament with no perfume attached, including one or more processes of weaving, knitting, and twisting, formed into a rope or knitted fabric structure, and then cut. The shaped elements are arranged in parallel with respect to the mainstream smoke direction, maintaining the original flavor of the smoke as the hot air flows through the longitudinally extending channel defined by the polylactic acid monofilament.

The odor-generating element is made by twisting or coating a polylactic acid monofilament and a spice filament.

The odor-generating element is processed from a polylactic acid monofilament by impregnating a dilute polylactic acid solution containing a fragrance additive.

The odor-generating element is composed of a plurality of polylactic acid monofilaments impregnated with a polylactic acid dilute solution containing a fragrance additive, and is formed into a rope or knitted fabric structure by one or more processes including weaving, knitting, and twisting, and then cut. The produced cylindrical element is arranged in parallel alignment with respect to the mainstream smoke direction.

When the odor-generating element is made of a polylactic acid monofilament attached with a perfume filament, a volatile odor of the perfume filament is generated when a hot air flow passes through a longitudinally extending channel defined by the polylactic acid monofilament.

The formed odor-generating element has a large specific surface area, a cylindrical element made by cutting a rope or knitted fabric structure, and a large porosity, good ventilation, and does not affect the feeling of use. In tobacco products, adding the odor generating element increases the passage of smoke, reduces the temperature of the smoke and reduces the irritation of the respiratory tract; on the other hand, it does not cause thermal deformation and maintains good support performance.

The polylactic acid monofilament is processed by impregnating a polylactic acid dilute solution containing a flavor additive. The polylactic acid contained in the dilute polylactic acid solution has a mass fraction of 1-5%, and the mass ratio of the polylactic acid to the flavor additive is (1 to 5). :1. Preferably, the flavor in the flavor additive or flavor thread is one or more of menthol, eugenol, green mint, mint oil, cocoa powder, vanilla, cinnamon, fruit flavor and licorice. In tobacco products, the surface of the fragrance is covered with polylactic acid during use, which can effectively control the volatilization of the fragrance and reduce unnecessary fragrance volatilization before use. At the same time, the polylactic acid material has good thermal stability during use, and is not prone to heat polycondensation. The unobstructed smoke channel does not affect the feeling of use.

In the present invention, the odor-generating element can be used for a heated non-burning cigarette product. When applied to heated non-combustion cigarette products, the passage through which the smoke passes is lengthened. When the smoke passes, the temperature of the smoke can be reduced, and the irritation of the smoker's respiratory tract can be reduced.

The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall be included in the present invention. Within the scope of protection.

Example 1:

Use a 0.15mm diameter polylactic acid monofilament with a circular cross-section, use 8 braided network cables, wear a structure of 1 strand and 1 strand, and each strand contains 1 monofilament arranged in parallel with each other using a braiding machine to weave a rope , 45 ropes are arranged in parallel to form an odor generating element. The polylactic acid monofilament is processed by impregnating a polylactic acid dilute solution containing a flavor additive, wherein the polylactic acid dilute solution has a polylactic acid mass fraction of 5%, a flavor mass fraction of 2%, and a flavor additive of menthol. The overall odor generating element has an outer diameter of 7 mm and a length of 15 mm. The structure diagram is shown in Figure 1;

Example 2:

Use a 0.2mm diameter polylactic acid monofilament with an oval cross-section, and use 3 monofilaments to twist in the Z direction and a twist of 300 to form a strand 1, and then twist the 3 strands 1 in the S direction. A twist of 220 is twisted into 9 monofilaments to form a ZS twisted strand, and 36 strands are arranged in parallel to form an odor generating element. The polylactic acid monofilament does not need to be treated by soaking a dilute polylactic acid solution containing a fragrance additive. The overall odor generating element has an outer diameter of 7 mm and a length of 17 mm. The structure diagram is shown in Figure 2;

Example 3:

Use a 0.5mm diameter polylactic acid monofilament with a triangular cross-section, so that the yarn carried by each guide needle is always padded on the same knitting needle to form a loop structure knitted fabric. With one guide needle, One monofilament is knitted with a warp knitting machine in the knitting field to form a closed-chain knitting structure, and 50 ropes are arranged in parallel to form an odor generating element. The polylactic acid monofilament is processed by impregnating a polylactic acid dilute solution containing a flavor additive. The polylactic acid dilute solution has a polylactic acid mass fraction of 1%, a flavor mass fraction of 1%, and a flavor additive of menthol. The overall odor generating element has an outer diameter of 7 mm and a length of 20 mm. The structure diagram is shown in Figure 3:

Example 4:

Use a three-leaf-shaped 0.3mm diameter polylactic acid monofilament. Two monofilaments are first twisted in the Z direction with a twist of 200 to form a strand 1, and then 3 strands 1 are twisted in the S direction. The twist is 160, and twisted into 6 monofilaments to form ZS twisted strands. 30 ropes are arranged in parallel to form an odor generating element. The polylactic acid monofilament is processed by impregnating a polylactic acid dilute solution containing a flavor additive. The polylactic acid dilute solution has a polylactic acid mass fraction of 1%, a flavor mass fraction of 0.2%, and a flavor additive of menthol. The overall odor generating element has an outer diameter of 7 mm and a length of 15 mm.

Example 5:

Use two polylactic acid monofilaments with a diameter of 0.05 mm and one scented silk with a diameter of 0.05 mm. Twist into S strand 1 with a twist of 300 and then twist 3 strands. Thread 1 is twisted in the Z twist direction with a twist of 220 to form 9 SZ twisted strands, and 80 ropes are arranged in parallel to form an odor generating element. The polylactic acid monofilament is processed by impregnating a polylactic acid dilute solution containing a flavor additive, wherein the polylactic acid dilute solution has a polylactic acid mass fraction of 2%, a flavor mass fraction of 0.5%, and the flavor additive is a fruit flavor. The overall odor generating element has an outer diameter of 12 mm and a length of 40 mm.

Example 6:

Use a 0.5mm diameter polylactic acid monofilament with a circular hollow cross-section, use 8 braided mesh wires, wear a structure of 1 strand and 1 strand, and each strand contains 1 monofilament arranged in parallel with each other using a braiding machine. The rope, 23 ropes are arranged in parallel to form an odor generating element. The polylactic acid monofilament does not need to be treated by soaking a dilute polylactic acid solution containing a fragrance additive. The overall odor generating element has an outer diameter of 7 mm and a length of 10 mm.

Example 7:

Use a 0.4mm diameter polylactic acid monofilament with a cross-shaped cross-section, so that the yarn carried by each yarn guide needle is always padded on the same needle to form a loop structure knitted fabric, using 2 pieces The yarn guide needles and two single warp knitting machines in the knitting field are used to weave closed-mouth re-knitted chain structures to form braided chain ropes. 44 ropes are arranged in parallel to form an odor generating element. The polylactic acid monofilament is processed by impregnating a polylactic acid dilute solution containing a flavor additive. The polylactic acid dilute solution has a polylactic acid mass fraction of 2%, a flavor mass fraction of 0.5%, and a fragrance additive is eugenol. The overall odor generating element has an outer diameter of 7 mm and a length of 12 mm.

Example 8:

Use a polylactic acid monofilament with a diameter of 0.1mm and a cross-section of 16 strands of braided network cable. The structure consists of 2 strands and 2 strands. Each strand contains 2 filaments arranged in parallel with each other. , 20 ropes are arranged in parallel to form an odor generating element. The polylactic acid monofilament is processed by impregnating a polylactic acid dilute solution containing a flavor additive. The polylactic acid dilute solution has a polylactic acid mass fraction of 4%, a flavor mass fraction of 1%, and a flavor additive is a fruit flavor. The overall odor generating element has an outer diameter of 5 mm and a length of 10 mm.

Example 9:

Polylactic acid monofilament with a circular cross-section of 0.15mm in diameter is first twisted with fruit flavor and spice yarn, and then 3 monofilaments are first twisted in the Z direction with a twist of 300, and then 8 strands are used. The braided network cable wears a structure of one strand and one strand. Each strand contains one strand and one strand is arranged in parallel with each other using a weaving machine to weave a rope. 20 ropes are arranged in parallel to form an odor generating element. The overall odor generating element has an outer diameter of 7 mm and a length of 15 mm.

Example 10:

Use a polylactic acid monofilament with a cross section of 0.2mm in diameter and a 0.3mm diameter in cross section. The polylactic acid monofilament with a cross section of 0.2mm in diameter is first twisted in S direction. The twist is 200 is twisted into strands 1, and then the cross section of the triangle is 0.3mm in diameter. The polylactic acid monofilament impregnated with perfume is twisted in the Z direction, and the twist is 160 to twist into strands 2, so that each guide needle brings The knitting fabric of the yarn is always knitted on the same knitting needle to form a knitting chain structure. With 2 guide needles, 1

strand

1, 1 strand 2, the warp knitting machine in the field of knitting is used to close the mouth and re-knit. The chain organization forms a braided rope, and 10 ropes are arranged in parallel to form an odor generating element. The polylactic acid monofilament does not need to be treated by soaking a dilute polylactic acid solution containing a fragrance additive. The overall odor generating element has an outer diameter of 12 mm and a length of 40 mm.

Claims

A degradable odor generating element for non-burning smoke, characterized in that the odor generating element includes polylactic acid monofilament, and the diameter of the polylactic acid monofilament is 0.05 mm to 0.5 mm.
The degradable odor-generating element for non-burning smoke according to claim 1, wherein the odor-generating element comprises a plurality of polylactic acid monofilaments arranged in parallel with respect to a mainstream smoke direction.
The degradable odor generating element for non-burning smoke according to claim 2, wherein the polylactic acid monofilament comprises a hollow monofilament, a monofilament having a circular cross-section, and an oval cross-section. One or more of a monofilament, a monofilament having a triangular cross-section, and a profiled monofilament having a cross-section of another geometry.
The degradable odor generating element for non-burning smoke according to claim 1, wherein the odor generating element has a length of 5 mm to 40 mm and an outer diameter of 5 mm to 12 mm.
The degradable odor-generating element for non-burning smoke according to claim 1, wherein the odor-generating element has a porosity of 40% to 80% in a direction parallel to the flue gas, per millimeter of length Total surface area of 200-800mm2.
The degradable odor-generating element for non-burning smoke according to claim 1, wherein the odor-generating element is made of polylactic acid monofilament with no perfume attached, including weaving, knitting, and twisting. Cylindrical elements made by cutting into a rope or knitted fabric structure by one or more processes, and the cylindrical elements are arranged in parallel alignment with the mainstream smoke direction, and the polylactic acid monofilament passes through the hot air flow The defined longitudinal extension of the channel maintains the original taste of the smoke.
The degradable odor-generating element for non-burning smoke according to claim 1, wherein the odor-generating element is made by twisting or covering polylactic acid monofilament and perfumed silk.
The degradable odor generating element for non-burning smoke according to claim 1, wherein the odor generating element is treated by polylactic acid monofilament by impregnating a polylactic acid dilute solution containing a flavor additive.
The degradable odor-generating element for non-burning smoke according to claim 8, wherein the odor-generating element is composed of a plurality of polylactic acid monofilaments impregnated with a polylactic acid dilute solution containing a flavor additive. One or more of knitting, knitting, and twisting processes are used to form a cylindrical element formed by cutting into a rope or knitted fabric structure, and the cylindrical element is arranged in parallel alignment with respect to the mainstream smoke direction.
The degradable odor generating element for non-burning smoke according to claim 9, characterized in that the polylactic acid contained in the polylactic acid dilute solution has a mass fraction of 1-5%, and the mass ratio of polylactic acid and flavor additives. It is (1 to 5): 1.
The degradable odor generating element for non-burning smoke according to claim 7 or 8, characterized in that the fragrance in the fragrance additive and the fragrance silk is menthol, eugenol, green mint, peppermint oil , One or more of cocoa powder, vanilla, cinnamon, fruit flavors and licorice.
A cigarette product comprising the cigarette odor generating element according to any one of claims 1-11.