CN104856219A - Extrusion forming preparation method of tobacco - Google Patents

Abstract

The invention provides a method for preparing tobacco products by extrusion molding. The tobacco leaf raw material is sliced after additional treatment, and then heated and wetted by steam. Finally, a certain pressure is applied in the mold to form a tobacco stick and packaged into a finished cigarette. The preparation method is convenient and efficient, reduces harmful auxiliary materials, and at the same time, the produced cigarette burns sufficiently and is not easy to generate harmful components.

Description

A kind of extrusion molding preparation method of tobacco products

technical field

The invention belongs to the technical field of tobacco leaves, and specifically refers to a process for producing cigarette products by extrusion molding.

Background technique

The current manufacturing method of machine-made cigarettes is to drop shredded tobacco into the tobacco trough and wrap cigarette papers conveyed by belts. This technology has matured and the manufacturing speed is very fast. It is a common method for domestic cigarette factories to prepare cigarette products.

The biggest feature of the tobacco rod prepared by this method is that the shredded tobacco must be wrapped with cigarette paper, and the cigarette paper must be bonded with an adhesive. In order to pursue high production efficiency, this type of method requires high precision and processing speed of machinery and equipment, and cigarette paper and adhesives must be specially made to meet the speed requirements of cigarettes. These requirements undoubtedly increase the difficulty and cost of manufacturing; at the same time These special cigarette papers and adhesives have a certain influence on the smoke. For example, the increased strength of the cigarette paper brings a certain miscellaneous and woody smell. The chemical composition brings health and safety problems to consumers after cigarettes are burned and smoked.

Another feature of the smoke stick prepared by this method is that the smoke stick is solid. The biggest problem in the combustion process of the solid smoke stick is that the oxygen consumed can only be provided from the surface of the burning smoke cone, and the surface area of the burning smoke cone is limited. The cone has a certain height and width, and the soot after combustion also hinders the supply of oxygen in the air to the smoke cone. These factors make the combustion of the tobacco stick a combustion with insufficient oxygen, and the CO content in the generated smoke is relatively large.

At present, the tobacco products prepared by pressure mainly include reconstituted tobacco leaves by rolling method, and reconstituted shredded tobacco prepared by extrusion method. Rolling reconstituted tobacco is one of the two main methods of domestic reconstituted tobacco production. The production method is to roll tobacco powder and adhesive into paper form, and then cut it into shredded tobacco with a shredder. There is a patent CN1097116A (one-time extrusion molding reconstituted tobacco production process and its screw extrusion molding machine) for preparing reconstituted tobacco by extrusion method, which is characterized in that tobacco residue powder, thin paste binder and acid, alcohol, hygroscopic The liquid materials of agent and water are respectively fed into the screw extrusion molding machine, mixed and stirred evenly, extruded into thin strips of regenerated shredded tobacco blanks, cut off after drying.

Rolling reconstituted tobacco leaves and cut tobacco extruded by extrusion are essentially the auxiliary materials of the cigarette leaf group. Finally, they are processed into cigarettes together with the shredded tobacco through the cigarette rolling machine of the tobacco factory. The raw material must be tobacco powder. This is essentially different from this patent. The tobacco rod prepared by this patent can be directly burned or smoked or only needs to be wrapped with cigarette paper and connected with a mouthpiece to form a finished cigarette. The raw material is shredded tobacco or tobacco leaf fragments. In order to comply with the existing cigarette smoking habits, there are certain physical and chemical requirements for the tobacco stick, such as the requirement for the draw resistance, which must be close to the draw resistance of the existing cigarette machine rolling tobacco stick, and the diameter of the circumference is 7.5mm. These technical characteristics are that the roll Pressed reconstituted tobacco leaves and extruded reconstituted tobacco are not available.

Contents of the invention

The purpose of the present invention is to overcome the shortcomings of the above-mentioned existing background technology, and provide a method for preparing a cigarette rod through steam heating and die extrusion.

The object of the present invention is achieved through the following technical scheme: a tobacco product extrusion molding preparation method, comprising the following steps:

Raw material processing: when the raw material is sheet tobacco, add spices according to the existing method of flavoring and adding materials in tobacco factories. After processing, arrange them into piles and cut them into small pieces at intervals of 2 to 4 cm. The shredded tobacco is treated with spices according to the flavoring method of the tobacco factory.

The treated shredded tobacco or sheet tobacco is heated and moistened by steam, so that the moisture content of the raw material reaches 50% to 80%, and the temperature is 60°C to 80°C.

Put the raw material in the designed mold while it is hot, pressurize it into a cigarette stick, the pressure is specified at 2-6 kg pressure, and the specified pressure helps the formed cigarette stick have a suitable suction resistance.

The prepared cigarette sticks are placed in an oven at 60° C. and dried with hot air until the water content reaches 12% (±3%), and then they can be packaged into finished cigarettes.

The tobacco product of this patent can be flexibly designed into a mold, such as designing the mold so that the tobacco rod is hollow or has a porous shape like briquettes, so as to increase the oxygen contact area and reduce the filling value of shredded tobacco per unit volume. It is also possible to design convex and concave characters or patterns on the surface of the smoke stick to increase the artistic sense of the smoke stick.

Detailed ways

The specific implementation manners and related technical problems of the present invention will be further described below in conjunction with the examples, but the scope of the present invention is not limited to these examples.

Example 1:

Choose Hubei China Tobacco Soft Box Red Edition Yellow Crane Tower finished tobacco, steam heating and moistening, so that the raw material moisture reaches 50%, and the temperature is 60 °C. Put the raw materials in the designed No. 1 mold while they are still hot, press 2 kg of pressure mechanically to form a cigarette stick, place the prepared cigarette stick in a 60°C oven and dry it with hot air until the moisture content is 12±3%, and roll the cigarette paper and the mouthpiece Connected into finished cigarettes.

Example 2:

Choose Hubei China Tobacco Soft Box Red Edition Yellow Crane Tower finished tobacco, steam heating and moistening, so that the raw material moisture reaches 60%, and the temperature is 70°C. Put the raw material in the designed No. 2 mold while it is hot, and press it into a tobacco rod with 4 kg of pressure mechanically. The prepared tobacco rod is dried in a 60°C oven with hot air until the moisture content is 12±3%, and it is directly coiled with a mouth rod. into finished cigarettes.

Example 3:

Use laminar tobacco (specification: Yunnan Qujing 12-year C2L) as raw material, and carry out the process of adding spices according to the existing flavoring and feeding method in the tobacco factory. The steam is heated and moistened so that the raw material moisture reaches 80%, and the temperature is at 80°C. Put the raw material in the designed No. 3 mold while it is still hot, and press it into a cigarette rod with 6 kg of pressure mechanically. The prepared cigarette rod is dried in a 60°C oven with hot air until the moisture content is 12±3%, and the cigarette paper and the mouthpiece are rolled. Connected into finished cigarettes.

Example 4:

Use laminar tobacco (specification: Yunnan Qujing 12-year C2L) as raw material, and carry out the process of adding spices according to the existing flavoring and feeding method in the tobacco factory. The steam is heated and moistened so that the raw material moisture reaches 50%, and the temperature is at 80°C. Put the raw material in the designed No. 4 mold while it is still hot, and press it into a cigarette stick with 6 kg of pressure mechanically. The prepared cigarette stick is dried in a 60°C oven with hot air until the moisture content is 12±3%, and the cigarette paper and the mouthpiece are rolled. Connected into finished cigarettes.

Example 5:

Use laminar tobacco (specification: Yunnan Qujing 12-year C2L) as raw material, and carry out the process of adding spices according to the existing flavoring and feeding method in the tobacco factory. The steam is heated and moistened so that the raw material moisture reaches 50%, and the temperature is at 60°C. Put the raw material in the designed No. 5 mold while it is still hot, and press it into a cigarette rod with 2 kg of pressure mechanically. The prepared cigarette rod is dried in a 60°C oven with hot air until the moisture content is 12±3%, and the cigarette paper and the mouthpiece are rolled. Connected into finished cigarettes.

The tobacco products produced from the above 5 implementation cases have the characteristics of finished cigarettes in appearance, the draw resistance of hollow sticks is slightly lower than that of conventional cigarettes, and the draw resistance of solid sticks is slightly higher than that of conventional cigarettes, but it does not affect consumers’ burning and smoking . Due to its external features different from conventional cigarettes, it has a certain novelty, which can increase consumers' favor.

The content not described in detail in this specification belongs to the prior art known to those skilled in the art.

Claims (4)

1. A tobacco product extrusion molding preparation method, characterized in that: comprising the following steps: (1) Flavoring and adding materials to the raw sheet tobacco or shredded tobacco. After the treatment is completed, arrange them into stacks and cut them into small pieces at a distance of 2 to 4 cm; (2) At a temperature of 60°C to 80°C, steam heating and wetting is carried out so that the moisture content of the raw material reaches 50% to 80%; (3) Put the raw material in the mold while it is hot, and press it into a smoke stick under pressure; (4) The prepared tobacco rod is placed in an oven at 60° C., dried with hot air until the moisture content is 12%±3%, and then packaged into finished cigarettes. 2. A tobacco product extrusion molding preparation method according to claim 1, characterized in that: the mold in step (3) is hollow or briquette-shaped porous. 3. A tobacco product extrusion molding preparation method according to claim 1, characterized in that: in step (3), the inner surface of the mold has convex and concave characters or patterns. 4. A tobacco product extrusion molding preparation method according to claim 1, characterized in that: the pressure in step (3) is 2-6 kg.