CN-122013601-A - High-resistant Wen Juanyan wrapping sheet and preparation method and application thereof

CN122013601ACN 122013601 ACN122013601 ACN 122013601ACN-122013601-A

Abstract

The invention relates to a high-temperature-resistant Wen Juanyan wrapping sheet, a preparation method and application thereof, wherein the wrapping sheet for high-temperature-resistant cigarettes comprises an aramid fiber layer and a plant fiber layer which are arranged in a stacked manner, the preparation raw materials of the aramid fiber layer comprise meta-aramid chopped fibers, aramid pulp and chemical additives, and the preparation raw materials of the plant fiber layer comprise plant fibers and chemical additives. The invention adopts the aramid fiber to prepare the high temperature resistant layer, the aramid fiber layer takes the aramid chopped fiber as a framework, the aramid pulp is used as a filler and a binder to be subjected to physical interweaving forming, and the aramid pulp and the binder are matched with each other, so that the tensile index of the sheet can be improved, the porosity is obviously reduced, a compact heat barrier is formed, and the aramid fiber layer is compounded with the plant fiber layer, so that carbonization can be effectively resisted, and peculiar smell can be reduced after heating and sucking.

Inventors

WANG PENGFEI
LI CHAOJIAN
ZHOU CHENGXI
Zhu yuanyang
YANG GE
YUAN GUANGXIANG
GE JINGJING
TANG WEI

Assignees

南通烟滤嘴有限责任公司

Dates

Publication Date: 20260512
Application Date: 20260402

Claims (10)

1. The high-temperature resistant Wen Juanyan wrapping sheet is characterized by comprising an aramid fiber layer and a plant fiber layer which are arranged in a stacked manner; The preparation raw materials of the aramid fiber layer comprise meta-aramid chopped fibers, aramid pulp and chemical additives; The plant fiber layer is prepared from plant fibers and chemical additives.
2. The wrapping sheet for high temperature resistant cigarettes according to claim 1, wherein the aramid fiber layer is prepared from 3-15 parts by weight of meta-aramid chopped fibers, 15-30 parts by weight of aramid pulp and 0.5-5 parts by weight of chemical auxiliary agents; the plant fiber layer is prepared from 40-60 parts of plant fibers and 0.5-5 parts of chemical auxiliary agents in parts by weight; Preferably, the aramid fiber layer and the plant fiber layer of the wrapping sheet for the high-temperature resistant cigarette also independently comprise 1-10 parts of inorganic filler.
3. The wrapping sheet for high temperature resistant cigarettes according to claim 2, wherein the inorganic filler is selected from any one or a combination of at least two of titanium dioxide, calcium carbonate, kaolin, talc, wollastonite, diatomaceous earth, bentonite, and barium sulfate; Preferably, the inorganic filler is selected from the group consisting of titanium dioxide, calcium carbonate.
4. A wrapping sheet for high temperature resistant cigarettes according to any one of claims 1 to 3, wherein the aramid pulp is selected from para-aramid pulp and/or meta-aramid pulp.
5. The wrapping sheet for high temperature resistant cigarettes according to any one of claims 1 to 4, wherein the plant fiber is selected from any one or a combination of at least two of softwood pulp, hardwood pulp, cotton pulp, grass pulp, hemp pulp, bamboo pulp, bagasse pulp; preferably, the plant fiber is selected from the group consisting of softwood pulp, hemp pulp, bagasse pulp; preferably, the mass ratio of the softwood pulp, the hemp pulp and the bagasse pulp is 1 (0.5-3) to 0.5-3.
6. The wrapping sheet for high temperature resistant cigarettes according to any one of claims 1 to 5, wherein the chemical auxiliary agents of the aramid fiber layer and the plant fiber layer are each independently selected from any one or a combination of at least two of cationic starch, polyacrylamide, polyethyleneimine, polyethylene oxide, alkyl ketene dimer, alkenyl succinic anhydride, rosin gum, modified starch, polyvinyl alcohol, urea-formaldehyde resin, melamine formaldehyde resin, cetyl trimethylammonium chloride, dodecyl trimethylammonium chloride, and silicone; Preferably, the chemical auxiliary agents of the aramid fiber layer and the plant fiber layer are respectively and independently selected from the combination of cationic starch and polyethylene oxide; Preferably, the mass ratio of the cationic starch to the polyethylene oxide is 1 (0.5-3) independently of each other.
7. A method of producing the wrapping sheet for high temperature resistant cigarettes according to any one of claims 1 to 6, wherein the method comprises: (1) Mixing meta-aramid chopped fibers, aramid pulp and water to prepare slurry, and then mixing the slurry with chemical auxiliary agents to obtain aramid fiber layer slurry; mixing plant fiber with water to prepare slurry, and then mixing the slurry with chemical auxiliary agents to obtain plant fiber layer slurry; (2) And (3) respectively forming and compounding the aramid fiber layer slurry and the plant fiber layer slurry by adopting a mode of overlapped net papermaking, squeezing, drying, high-temperature calendaring and slitting to obtain the wrapping sheet for the high-temperature-resistant Wen Juanyan.
8. The method of claim 7, wherein the temperature of the mixing of step (1) is each independently selected from 20-30 ℃; Preferably, the total mass of the aramid chopped fiber and the aramid pulp in the middle position of the aramid fiber layer slurry in the step (1) accounts for 0.3-0.8% of the mass of water; Preferably, the total mass of plant fibers in the plant fiber layer slurry in the step (1) accounts for 0.3-0.8% of the mass of water; preferably, the step (1) further comprises the step of mixing the meta-aramid chopped fiber, the aramid pulp and water to prepare slurry, and then mixing the slurry with an inorganic filler; Preferably, the step (1) further comprises the step of mixing the vegetable fibers with inorganic filler after the vegetable fibers are mixed with water to prepare slurry.
9. The method according to any one of claims 7 or 8, wherein the drying in step (2) is performed by using two sets of drying cylinders, wherein the pressure of the inner carrier roller of the drying cylinder in the first set of drying cylinders is 80-100 kg/cm, the temperature of the drying cylinder is 110-130 ℃, and the drying time is 10-20 min; The pressure of the carrier roller in the drying cylinder of the second group of drying cylinders is 40-60 kg/cm, the drying cylinder temperature of the second group of drying cylinders is 80-100 ℃, and the drying time of the second group of drying cylinders is 20-30 min.
10. Use of a wrapping sheet for high temperature resistant cigarettes according to any one of claims 1 to 6 in the preparation of a high temperature resistant wrapper product.

Description

High-resistant Wen Juanyan wrapping sheet and preparation method and application thereof Technical Field The invention belongs to the field of high-temperature-resistant composite paper, and particularly relates to a high-temperature-resistant Wen Juanyan wrapping sheet, a preparation method and application thereof. Background The peripheral heating cigarette is smoked through the peripheral heating cigarette bullet, and compared with the central heating mode, the peripheral heating cigarette has larger heating area and faster heat transfer. However, this heating mode also presents a unique technical challenge in that heat must penetrate the two-layer structure of the wrapper and forming paper in sequence from the outside to reach the inner tobacco sheet. During this process, the cigarette paper and forming paper are directly exposed to a high temperature environment of 250-300 ℃ (typically rapidly rising temperatures within 10 seconds and maintaining for 3-5 minutes) resulting in the paper itself being baked or even carbonized. The cigarette has obvious paper peculiar smell, and the smoke is mixed to influence the smoking sensory quality, so that the appearance of the cigarette is locally blackened, and the experience of consumers is seriously influenced. The research of the existing high-temperature-resistant paper is mainly focused on the fields of industrial insulating materials, electronic tags, aerospace composite materials and the like, and the technical path of the existing high-temperature-resistant paper is mainly inorganic fibers such as glass fibers, aluminum silicate fibers and carbon fibers, or the high-temperature-resistant paper is coated with high-temperature-resistant paint and adhesive to realize the temperature resistance. In the cigarette field, the prior art only focuses on the printing temperature resistance (about 180 ℃) of tipping paper, while traditional cigarette paper does not face the high temperature resistance requirement in the peripheral heating mode because of participating in combustion or being used only in a central heating mode. Although aramid fiber is widely used in the fields of high temperature resistance such as aerospace, insulating materials and the like, the research applied to cigarette paper is still blank, and the thermal behavior of the aramid fiber under the working condition of heating cigarettes, the influence on smoke components and how to consider the high temperature resistance and the sensory quality are not systematically researched. Therefore, how to develop a cigarette paper with excellent high temperature resistance, low smoke release and good appearance retention so as to meet the special requirements of peripheral heating cigarettes is a technical problem to be solved in the field. Disclosure of Invention Aiming at the defects of the prior art, the invention aims to provide a high-strength Wen Juanyan-resistant wrapping sheet, and a preparation method and application thereof. In order to achieve the purpose, the invention adopts the following technical scheme: The invention provides a high-temperature-resistant Wen Juanyan wrapping sheet for cigarettes, which comprises an aramid fiber layer and a plant fiber layer which are stacked, wherein the preparation raw materials of the aramid fiber layer comprise meta-aramid chopped fibers, aramid pulp and chemical additives, and the preparation raw materials of the plant fiber layer comprise plant fibers and chemical additives. The high-temperature resistant layer is prepared by adopting the aramid fibers, the aramid fiber layer takes the aramid chopped fibers as a framework, and the aramid pulp is used as a filler and a binder for physical interweaving forming, and the aramid pulp and the binder are mutually matched and synergistically synergistic, so that the tensile index of the sheet can be obviously improved, the porosity is obviously reduced, a compact thermal barrier is formed, the high-temperature resistant wrapping sheet is prepared by compounding the aramid fiber layer and the plant fiber layer, a complementary fiber network is better constructed, the paper odor is reduced, and the cost is reduced. Preferably, the aramid fiber layer is prepared from 3-15 parts (for example, 3 parts, 5 parts, 7 parts, 10 parts, 12 parts, 15 parts, etc.), 15-30 parts (for example, 15 parts, 17 parts, 20 parts, 22 parts, 25 parts, 27 parts, 30 parts, etc.), 0.5-5 parts of chemical auxiliary agent (for example, 0.5 part, 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, etc.), and the meta-aramid chopped fiber. The plant fiber layer is prepared from 40-60 parts by weight of plant fibers (for example, 40 parts, 45 parts, 50 parts, 55 parts, 60 parts and the like), and 0.5-5 parts by weight of chemical auxiliary agents (for example, 0.5 parts, 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts and the like). Preferably, the aramid fiber layer