阅读说明：本技术 一种异形烟草颗粒及其制备方法、烟草制品及其制备方法 (Special-shaped tobacco particles and preparation method thereof, tobacco product and preparation method thereof ) 是由 金勇� 陈潜 李克 喻赛波 范红梅 谭海风 王诗太 谭超 刘琦 于 2019-02-20 设计创作，主要内容包括：一种异形烟草颗粒,包括烟草颗粒本体和附着于烟草颗粒本体表面的包衣层,包衣层内含有胶黏剂,异形烟草颗粒的表面具有若干凹槽和/或凸条,和/或者,异形烟草颗粒内具有通孔。异形烟草颗粒的表面凹槽可作为烟草颗粒间粘结固化成型后的烟气通道,使全颗粒烟草制品内部透气性大幅提高,降低烟支吸阻,提高其燃烧性的同时使烟草原料使用量降低。此外还公开了该异形烟草颗粒的制备方法、包括该异形烟草颗粒的烟草制品及其制备方法。(The utility model provides a dysmorphism tobacco particles, includes tobacco particles body and attaches to the coating layer on tobacco particles body surface, contains the gluing agent in the coating layer, and the surface of dysmorphism tobacco particles has a plurality of recesses and/or sand grip, and/or, has the through-hole in the dysmorphism tobacco particles. The surface grooves of the special-shaped tobacco particles can be used as smoke channels formed by bonding, curing and molding the tobacco particles, so that the internal air permeability of the full-particle tobacco product is greatly improved, the smoking resistance of cigarettes is reduced, the combustibility of the cigarette is improved, and the usage amount of tobacco raw materials is reduced. In addition, a preparation method of the special-shaped tobacco particles, a tobacco product comprising the special-shaped tobacco particles and a preparation method of the special-shaped tobacco particles are also disclosed.)

The special-shaped tobacco particles are characterized by comprising a tobacco particle body and a coating layer attached to the surface of the tobacco particle body, wherein the coating layer contains an adhesive; the surface of the special-shaped tobacco particles is provided with a plurality of grooves and/or raised lines, and/or the special-shaped tobacco particles are internally provided with through holes.

The shaped tobacco particle of claim 1, wherein the groove has a width of 40-120 μ ι η; the width of the convex strips is 50-150 mu m.

The shaped tobacco particle of claim 1, wherein the tobacco particle body is at least one of cylindrical, sheet-like, and spherical.

The shaped tobacco particle of claim 1, wherein the tobacco particle body comprises, by weight, 100 parts of a tobacco raw material, 1-15 parts of a tobacco extract, 5-30 parts of a nebulizing agent, and 0-100 parts of a first adjunct; the first auxiliary material comprises at least one of microcrystalline cellulose, modified starch, dextrin, cellulose, powdered sugar, calcium carbonate and carbon powder.

The shaped tobacco particle of claim 1, wherein the tobacco particle body comprises, by weight, 90-99 parts of a tobacco raw material, 0.01-1 part of a flavoring, 0.1-5 parts of a humectant, and 0-5 parts of a second adjuvant; the second auxiliary material comprises at least one of sandalwood, agilawood and tea.

The shaped tobacco particle of any one of claims 1-5, wherein the coating layer comprises one or more of hydroxypropyl methylcellulose, hydroxypropyl cellulose, povidone, sodium carboxymethyl cellulose, polyethylene glycol, polyvinyl alcohol, starch, dextrin.

Shaped tobacco particles according to any of claims 1 to 5, wherein the shaped tobacco particles have a bulk density of 0.2 to 0.8g/cm³。

A preparation method of special-shaped tobacco particles is characterized by comprising the following steps:

s1, selecting or designing a mouth mold according to the shape of the tobacco particle body, and installing the mouth mold on an extrusion molding machine;

s2, injecting the raw materials into a feed inlet of the extrusion molding machine, carrying out extrusion molding, cutting and drying to obtain a tobacco particle body;

s3, coating the tobacco particle body to obtain the special-shaped tobacco particles.

The method of claim 8, comprising the steps of:

s1, crushing 100 parts of tobacco raw materials into tobacco powder with the particle size smaller than 60 meshes, adding 0-100 parts of first auxiliary materials, and uniformly stirring to obtain a mixture;

uniformly mixing 1-15 parts of tobacco extract, 5-30 parts of atomizing agent and 10-50 parts of 40-90 vol% ethanol solution, spraying the mixture, and uniformly stirring to obtain a raw material;

selecting or designing an opening die according to the shape of the tobacco particle body and related parameters, and installing the opening die on an extrusion molding machine;

s2, injecting the raw material obtained in the step S1 into a feed inlet of the extrusion molding machine, carrying out extrusion molding, cutting and drying to obtain a tobacco particle body;

s3, coating the tobacco particle body to obtain the special-shaped tobacco particles.

The method of claim 8, comprising the steps of:

s1, crushing 90-99 parts of tobacco raw materials into tobacco powder with the particle size smaller than 60 meshes, adding 0-5 parts of second auxiliary materials, and uniformly stirring to obtain a mixture;

uniformly mixing 0.01-1 part of spice, 0.1-5 parts of humectant and 10-50 parts of 30-90 vol% ethanol solution, spraying the mixture, and uniformly stirring to obtain a raw material;

selecting or designing an opening die according to the shape of the tobacco particle body and related parameters, and installing the opening die on an extrusion molding machine;

s2, injecting the raw material obtained in the step S1 into a feed inlet of the extrusion molding machine, carrying out extrusion molding, cutting and drying to obtain a tobacco particle body;

s3, coating the tobacco particle body to obtain the special-shaped tobacco particles.

A smoking article formed primarily from tobacco particles comprising shaped tobacco particles according to any one of claims 1 to 7 or shaped tobacco particles produced by the method of manufacture according to any one of claims 8 to 10.

A smoking article according to claim 11, wherein said smoking article is in the form of a solid rod, a cake or a hollow cylinder, preferably said smoking article has a density of 0.3-1.2g/cm³。

A method of manufacturing a smoking article according to claim 11 or 12, comprising the steps of:

(1) heating and humidifying the special-shaped tobacco particles by using damp and hot air to activate the adhesive property of a coating layer on the surfaces of the special-shaped tobacco particles to obtain damp and hot special-shaped tobacco particles;

wherein the temperature of the hot and humid air is 90-150 ℃, and the humidity is 95-100%;

(2) curing and molding the wet and hot special-shaped tobacco particles serving as raw materials, and removing redundant moisture to obtain a tobacco product blank;

(3) wrapping cigarette paper, tipping filter tips and cutting to obtain the finished product of the tobacco product.