阅读说明：本技术 一种降低加热不燃烧专用薄片外加纤维用量的方法 (Method for reducing dosage of extra fiber of special sheet without burning during heating ) 是由 乐喜 危培 刘志昌 童宇星 王子维 舒灏 陈一桢 于 2019-11-15 设计创作，主要内容包括：本发明提供一种降低加热不燃烧专用薄片外加纤维用量的方法,包括以下步骤：将烟粉与胶黏剂混合成粉料；将针叶木纤维、天然海泡石无机纤维、水、雾化剂混合均匀,疏解、分散成液态混合物；将所述粉料与所述液态混合物混合成均质浆料；将所述均质浆料辊压成型、干燥、切丝制成加热不燃烧烟草薄片。本发明采用天然海泡石无机纤维替代部分针叶木纤维,降低了外加针叶木纤维的用量,样品白点个数明显减少,且抗张强度仍在较好水平；此外,降低了外源性木质气与口腔残留,改善了加热不燃烧专用薄片产品的感官质量。(The invention provides a method for reducing the dosage of fibers added to a special sheet which is not burnt during heating, which comprises the following steps: mixing the tobacco powder and the adhesive into powder; uniformly mixing needle-leaved wood fiber, natural sepiolite inorganic fiber, water and an atomizing agent, and defibering and dispersing into a liquid mixture; mixing the powder material and the liquid mixture into homogeneous slurry; and rolling and forming the homogeneous slurry, drying and shredding to prepare the tobacco sheets which are not burnt by heating. The invention adopts natural sepiolite inorganic fiber to replace partial softwood fiber, reduces the dosage of the added softwood fiber, obviously reduces the number of white points of the sample, and has better tensile strength; in addition, the exogenous wood gas and the oral cavity residue are reduced, and the sensory quality of the special slice product which is not combusted by heating is improved.)

1. A method for reducing the dosage of fibers added to a special sheet which is not burnt during heating is characterized by comprising the following steps:

mixing the tobacco powder and the adhesive into powder;

uniformly mixing needle-leaved wood fiber, natural sepiolite inorganic fiber, water and an atomizing agent, and defibering and dispersing into a liquid mixture;

mixing the powder material and the liquid mixture into homogeneous slurry;

and rolling and forming the homogeneous slurry, drying and shredding to prepare the tobacco sheets which are not burnt by heating.

2. The method for reducing the dosage of the extra fiber of the special non-combustible sheet by heating as claimed in claim 1, wherein the homogeneous slurry comprises the following components, by weight, 1 part of tobacco powder, 3 ~ 10 parts of adhesive, 1 ~ 3 parts of softwood fiber, 0.1 ~ 1 parts of natural sepiolite inorganic fiber, 10 ~ 20 parts of water and 20 ~ 40 parts of atomizing agent.

3. The method of claim 2, wherein the inorganic fiber of natural sepiolite comprises 0.1 part 0.1 ~ 0.5.5 parts.

4. The method of claim 2, wherein the softwood fibers comprise 1 ~ 2 parts of additional fibers.

5. The method of claim 1, wherein the defibering temperature is 45 ~ 60 ℃.

6. The method of claim 1 wherein the soot mesh size is greater than 100 mesh.

Technical Field

The invention relates to the technical field of tobacco,

in particular, the invention relates to a method for reducing the dosage of fibers added to a special sheet which is not burnt during heating.

Background

A special sheet for heating and non-combustion by rolling method is an improved technological process based on the rolling method, and is prepared through mixing tobacco raw material with adhesive, pulverizing, mixing with additional softwood fiber, atomizing agent and water, high-speed stirring, eight-stage rolling for shaping, low-temp drying and cutting. In order to ensure the strength of the sheet, the conventional roller pressing method for heating the special non-combustible sheet adopts additional softwood fiber, more wood pulp fiber needs to be dissociated and dispersed for a long time, the special non-combustible sheet is heated to have wood miscellaneous gas, and the special non-combustible sheet is easy to agglomerate in production to cause white spots of the product; reducing the amount of fiber often results in problems of easy breakage, high breakage, low filling value, discontinuous production, etc.

The sepiolite fiber is a natural mineral fiber, is a fibrous variant of sepiolite mineral, in the structural unit of the sepiolite fiber, silicon-oxygen tetrahedron and magnesium-oxygen octahedron are mutually alternated, and has the transition characteristics of layer and chain, and the sepiolite has unique physical and chemical properties, and has high specific surface area (up to 800 ~ 900 m)²The coating has the advantages of high porosity, strong adsorption capacity, good heat resistance, natural decomposition without pollution, and the coating is called as green mineral fiber.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a method for reducing the dosage of fibers added to a special sheet which is not burnt during heating.

In order to solve the problems, the invention adopts the following technical scheme:

a method for reducing the dosage of fibers added to a special sheet which is not burnt by heating comprises the following steps:

mixing the tobacco powder and the adhesive into powder;

uniformly mixing needle-leaved wood fiber, natural sepiolite inorganic fiber, water and an atomizing agent, and defibering and dispersing into a liquid mixture;

mixing the powder material and the liquid mixture into homogeneous slurry;

and rolling and forming the homogeneous slurry, drying and shredding to prepare the tobacco sheets which are not burnt by heating.

Preferably, the homogeneous slurry comprises the following components, by weight, 1 part of tobacco powder, 3 ~ 10 parts of adhesive, 1 ~ 3 parts of softwood fiber, 0.1 ~ 1 parts of natural sepiolite inorganic fiber, 10 ~ 20 parts of water and 20 ~ 40 parts of atomizing agent.

More preferably, the natural sepiolite inorganic fiber is 0.1 ~ 0.5.5 parts.

More preferably, the softwood fibers are 1 ~ 2 parts.

Preferably, the fluffing temperature is 45 ~ 60 ℃.

Preferably, the tobacco powder mesh number is greater than 100 meshes.

Compared with the prior art, the invention has the technical effects that:

according to the invention, the natural sepiolite inorganic fiber with long fiber and good thermal stability is adopted to replace part of softwood fiber, so that the consumption of the added softwood fiber is reduced, the natural sepiolite inorganic fiber and the wood fiber act together, the natural sepiolite inorganic fiber can be uniformly dispersed in a liquid material, and the physical property of the product is improved to a certain extent; the number of white points of the sample is obviously reduced after the dosage of the added fiber is reduced, and the tensile strength is still at a good level; in addition, after the natural sepiolite inorganic fibers replace part of the added fibers, the exogenous wood gas and the oral cavity residue are reduced, and the sensory quality of the special sheet product for heating and non-burning is improved.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The embodiment of the invention provides a method for reducing the dosage of fibers added to a special sheet which is not burnt during heating, which comprises the following steps:

(1) crushing tobacco leaves into tobacco powder with the mesh number larger than 100 meshes;

(2) mixing the tobacco powder with an adhesive which accounts for 3-10% of the weight of the tobacco powder to form powder;

(3) heating needle-leaved wood fiber 1-3 wt% of tobacco powder, natural sepiolite inorganic fiber 0.1-1 wt%, water 10-20 wt% and atomizing agent 20-40 wt% in a reaction kettle to 45 ~ 60 deg.c, high speed stirring and mixing, and defibering and dispersing to form liquid mixture;

(4) mixing the powder material obtained in the step (2) and the liquid mixture obtained in the step (3) into homogeneous slurry;

(5) and (4) forming the homogeneous slurry in the step (4) by using a roller press, drying and shredding to prepare the tobacco sheets which are not combustible by heating.

The following is a further description with reference to specific examples.