CN110592995A - Hollow double-layer cigarette paper and preparation method thereof - Google Patents

Abstract

The invention discloses a hollowed-out double-layer cigarette paper and a preparation method thereof. According to different cutting specifications and requirements of cigarette paper, a designed pattern is input into a paper laser hollowing machine, and after the hollowed-out position and margin are determined, the The prepared cigarette paper outer layer base paper is laser hollowed out to obtain a hollowed out cigarette paper outer layer paper, and then the inner layer paper of the cigarette paper is coated with glue on a paper compounding machine and then compounded with the hollowed out cigarette paper outer layer paper to obtain a hollowed out double layer cigarette paper; The present invention utilizes laser hollowing technology and paper composite technology to realize hollow double-layer cigarette paper with special appearance, which can not only carry special graphics and text patterns, endow cigarettes with a strong humanistic atmosphere, but also improve the anti-counterfeiting performance of cigarettes, and at the same time, cigarette companies do not need to change equipment , To facilitate the processing and production of cigarette enterprises.

Description

Hollow-out double-layer cigarette paper and preparation method thereof

technical field

The invention belongs to the technical field of cigarette paper, in particular to a hollowed-out double-layer cigarette paper and a preparation method thereof.

Background technique

Cigarette paper is used as an auxiliary material for cigarettes. Although its weight only accounts for 5% of the weight of the whole cigarette, it bears more than 70% of the appearance of the cigarette. It is also one of the essential raw materials in the cigarette manufacturing process. In the tobacco industry occupies a more important position.

With the continuous development of the cigarette market, consumers are increasingly dissatisfied with the appearance of cigarettes in the form of ordinary horizontal and vertical ribs. Therefore, the design of cigarette paper with novel appearance and characteristics can not only attract consumers, but also carry the corporate image of the company. and culture, and at the same time have anti-counterfeiting functions. Therefore, cigarette paper with special appearance has been paid more and more attention in the cigarette industry.

There are many implementations of cigarette paper with special appearance. For example, the preparation method of cigarette paper with special appearance is currently used, such as the authorized patent ZL200910094465.7, which adopts the method of dyeing cigarette paper by adding smoke cream in the sizing section. This method can prepare colored cigarette paper, but the cigarette paper with pictures and texts cannot be prepared by using this method.

Another example is the authorized patent ZL201310142147.X, which adopts the method of embossing grid-like graphics and text on cigarette paper in the papermaking press section on the grid-shaped engraving roller. The preparation method can only be applied to the preparation of grid-shaped cigarette paper. It is simple, and its processing method is embossing in the pressing section. Due to the influence of the tension of the dryer cylinder of the paper machine, the pattern will be deformed to a certain extent. Using this embossing method in the pressing section, only cigarette paper with simple patterns can be produced.

Another example is patent application 201510181951.8, a cigarette paper conveying device that simultaneously transports double-layer cigarette paper and double-layer cigarette paper cigarettes prepared therefrom. This method requires the customer to modify the equipment, which is not conducive to the promotion of the product.

At present, there is no report on realizing hollow-out double-layer cigarette paper under the condition of facilitating popularization and ensuring the performance of cigarette paper at the same time.

Contents of the invention

Aiming at the deficiencies in the prior art, the present invention provides a hollowed-out double-layer cigarette paper and its preparation method; the present invention can prepare hollowed-out cigarette paper as an outer layer and compound it with other cigarette papers to form a hollowed-out double-layer cigarette paper; the present invention does not Customers need to modify the equipment to produce double-layer cigarette paper with hollow features.

The purpose of the present invention is achieved through the following technical solutions.

The preparation method of the hollowed out double-layer cigarette paper of the present invention is to prepare the base paper of the outer layer of the cigarette paper and the inner layer of the cigarette paper according to the conventional process, and input the designed pattern in the paper laser hollowing machine according to the different cutting specifications and requirements of the cigarette paper, After determining the hollow position and margin, laser hollow out the outer base paper of the prepared cigarette paper to obtain the outer paper of the hollowed cigarette paper, and then glue the inner paper of the cigarette paper on the paper compound machine and combine it with the outer paper of the hollowed cigarette paper Compounding is carried out to obtain a hollowed-out double-layer cigarette paper.

The specific content of above-mentioned preparation method is as follows:

(1) After mixing the fibers with water, disintegrate and beat in turn to obtain fiber pulp;

(2) After mixing the fiber slurry and the filler, papermaking is carried out to obtain the mixed slurry;

(3) The mixed pulp is formed, dehydrated, embossed and dried for the first time in sequence to obtain the first dry paper web;

(4) Surface sizing and second drying of the first dried paper web in sequence to obtain the base paper for the outer layer of cigarette paper;

(5) After mixing the fibers with water, disintegrate and beat in sequence to obtain fiber pulp;

(6) After mixing the fiber slurry and the filler, papermaking is carried out to obtain the mixed slurry;

(7) The mixed slurry is formed, dehydrated, embossed and dried for the first time in sequence to obtain the first dry paper web;

(8) Surface sizing and second drying of the first dried paper web in sequence to obtain the inner layer paper of cigarette paper;

(9) Input the designed pattern into the paper laser hollowing machine according to different cutting specifications and requirements, and design the hollowing position and margin at the same time, and carry out laser hollowing on the outer base paper of the hollowed cigarette paper to obtain the outer paper of the hollowed cigarette paper ;

(10) Glue the inner layer paper of the hollowed out cigarette paper on the paper laminating machine and compound it with the outer layer paper of the hollowed out cigarette paper to obtain a hollowed out double layered cigarette paper;

The beating degree of the fiber slurry in the step (1) or step (5) is 60-100°;

The fibers are wood pulp fibers and/or hemp pulp fibers; including long fibers and short fibers.

The filler is one or more of calcium carbonate, talcum powder and diatomaceous earth; the particle size of the filler is 2-20 μm.

The starting temperature of the first drying is 60-70°C, and the ending temperature is 100-110°C; the starting temperature of the second drying is 40-50°C, and the ending temperature is 70-80°C.

The sizing agent used for the surface sizing includes 95.5-98% of water, 2-4.5% of a combustion aid, wherein the combustion aid is one of citrate, malate, tartrate, lactate or any ratio of several kind.

The surface sizing method is double-side spraying, single-side coating, gravure coating, comma roll coating or nip extrusion coating.

In the process of the above-mentioned production method, first select the appropriate slurry, select different beating degrees according to the different requirements of the inner and outer layers of the hollowed-out double-layer cigarette paper, and then set the online process parameters of the paper sheet forming section, and carry out the paper Page copied. During the papermaking process, attention is paid to the evenness effect of the paper, the amount of combustion enhancer added, and the control of the tensile strength, and finally a hollowed-out double-layer cigarette paper product with inner and outer layers of cigarette paper that meets all indicators is formed.

In the step (10), the inner layer of the hollowed-out double-layered cigarette paper is glued in a rhombus-shaped manner, and white latex is used to ensure that the hollowed-out double-layered cigarette paper will not fall off.

Another object of the present invention is to provide the hollowed-out double-layer cigarette paper prepared by the above method; the hollowed-out double-layer cigarette paper comprises the following components by mass: 65-85 parts of fiber, 15-40 parts of filler, 4.5-5 parts of moisture, Combustion enhancer 0.5 to 2 parts.

The invention provides a method for preparing a hollowed-out double-layer cigarette paper. The invention firstly prepares the base paper of the inner and outer layers of the hollowed-out double-layer cigarette paper. The steps are to disintegrate and beat the fibers in sequence to obtain a fiber slurry; After the fiber slurry is mixed with the filler, papermaking is carried out to obtain a mixed slurry; the mixed slurry is sequentially subjected to wire forming, press dehydration, embossing and first drying to obtain a first dry paper web; the first drying The paper web is subjected to surface sizing and second drying in sequence, and through process technology control, the base paper of the inner and outer layers of the hollowed out double-layer cigarette paper is obtained. Hollowing out the base paper of the outer layer of the hollowed double-layer cigarette paper through a paper laser hollowing machine to obtain the outer layer paper of the hollowed out cigarette paper. Using a composite machine, the inner layer paper of the hollowed out cigarette paper is coated with white latex in a diamond shape, and then compounded and dried with the outer layer of the hollowed out double layered cigarette paper to obtain the hollowed out double layered cigarette paper. The present invention utilizes laser hollowing technology and paper composite technology to realize hollow double-layer cigarette paper with a special appearance, which can not only carry special graphics and text patterns, endow cigarettes with a strong humanistic atmosphere, but also improve the anti-counterfeiting performance of cigarettes, and at the same time, cigarette companies do not need to change equipment , To facilitate the processing and production of cigarette enterprises.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is a schematic diagram of the preparation process of the present invention;

Fig. 2 is a schematic diagram of a longitudinal sectional structure of the present invention;

Fig. 3 is a schematic diagram of the outer layer structure of the hollow cigarette paper of the present invention;

Fig. 4 is a structural schematic diagram of the inner layer (left picture) and outer layer (right picture) of the present invention.

In the figure: 1- the inner layer of double-layer cigarette paper; 2- the outer layer of double-layer cigarette paper; a- the position of the hollow out of the outer layer of cigarette paper; b- the distance from the hollowed out part to the top edge; c- the distance from the hollowed out part to the bottom edge; d- the hollowed out cigarette Paper length; e-the distance between the hollowed-out part and the left and right margins; f-the glue coating method of the inner layer of the hollowed-out cigarette paper; g-the width of the hollowed-out cigarette paper.

Detailed ways

The present invention will be described in further detail below through examples, but the scope of protection of the present invention is not limited to the content.

Embodiment 1: As shown in Figure 1, the preparation method of this hollowed-out double-layer cigarette paper is as follows:

(1) After mixing wood pulp fibers with water, disintegrate and beat in sequence to obtain fiber pulp, wherein the beating degree of fiber pulp is 60°;

(2) After mixing the fiber slurry and filler (calcium carbonate, particle size, 10-15 μm), papermaking is carried out to obtain a mixed slurry;

(3) The mixed pulp is sequentially subjected to wire forming, press dehydration, embossing and first drying to obtain the first dry paper web, wherein the drying start temperature is 60°C and the end temperature is 100°C;

(4) The first dried paper web is subjected to surface sizing and second drying in sequence to obtain base paper for the outer layer of cigarette paper, wherein the starting temperature of drying is 40°C, the ending temperature is 70°C, and the sizing agent is determined by mass The percentage is 95.5% water and the mass percentage is 4.5% combustion enhancer (sodium citrate), and the glue is applied by one-sided coating;

(5) After mixing wood pulp fibers with water, disintegrate and beat in sequence to obtain fiber pulp, wherein the beating degree of fiber pulp is 60°;

(6) After mixing the fiber slurry with (calcium carbonate, particle size, 10-15 μm), papermaking is carried out to obtain a mixed slurry;

(7) The mixed pulp is sequentially subjected to wire forming, press dehydration, embossing and first drying to obtain the first dry paper web, wherein the starting temperature of drying is 60°C, and the ending temperature is 100°C;

(8) The first dried paper web is subjected to surface sizing and second drying in sequence to obtain base paper for the outer layer of cigarette paper, wherein the starting temperature of drying is 40°C, the ending temperature is 70°C, and the sizing agent is determined by mass Composed of 95.5% water and 4.5% by mass of combustion accelerant (potassium citrate), sizing by single-sided coating;

(9) As shown in Figure 2-4, first determine that a is the hollowed out position of the outer base paper of the cigarette paper, b is the distance from the hollowed out part to the upper side; c is the distance from the hollowed out part to the lower side, d is the length of the hollowed out cigarette paper, and e is the distance from the left and right margins of the hollowed out part, and g is the width of the hollowed out cigarette paper; input the designed pattern into the paper laser hollowing machine, and carry out laser hollowing out on the outer layer base paper 2 of the hollowed out cigarette paper to obtain the outer layer paper of the hollowed out cigarette paper;

(10) Apply white latex to the inner layer 1 of the hollowed out cigarette paper on the paper laminating machine by diamond-shaped gluing method, and compound it with the outer layer paper of the hollowed out cigarette paper to obtain a hollowed out double-layered cigarette paper; each hollowed out double-layered cigarette paper 65g of fiber, 30g of filler, 4.5g of moisture, and 2g of combustion enhancer.

Embodiment 2: The preparation method of this hollowed-out double-layer cigarette paper is as follows:

(1) After mixing hemp pulp fibers with water, disintegrate and beat in sequence to obtain fiber pulp, wherein the degree of knocking of the fiber pulp is 80°;

(2) After mixing the fiber slurry and filler (talc powder, particle size 5-10 μm), papermaking is carried out to obtain a mixed slurry;

(3) The mixed pulp is sequentially subjected to wire forming, press dehydration, embossing and first drying to obtain the first dry paper web, wherein the drying start temperature is 70°C and the end temperature is 110°C;

(4) The first dried paper web is subjected to surface sizing and second drying in sequence to obtain base paper for the outer layer of cigarette paper, wherein the starting temperature of drying is 50°C, the ending temperature is 80°C, and the sizing agent is determined by mass It is composed of 96% water and 4% combustion accelerant (sodium malate and potassium malate, 1:3) by mass, and is sizing by spraying on both sides;

(5) After mixing hemp pulp fibers with water, disintegrate and beat in sequence to obtain fiber pulp, wherein the beating degree of fiber pulp is 80°;

(6) After mixing the fiber slurry with (talcum powder, particle size 5-10 μm), papermaking is carried out to obtain a mixed slurry;

(7) The mixed pulp is sequentially subjected to wire forming, press dehydration, embossing and first drying to obtain the first dry paper web, wherein the drying start temperature is 70°C and the end temperature is 110°C;

(8) The first dried paper web is subjected to surface sizing and second drying in sequence to obtain the inner layer paper of cigarette paper, wherein the starting temperature of drying is 50°C, the ending temperature is 80°C, and the sizing agent is prepared by Composition of 96% water by mass and 4% combustion accelerant (sodium malate and potassium malate, 1:3) by mass, sizing by spraying on both sides;

(9) As shown in Figure 2-4, first determine that a is the hollowed out position of the outer base paper of the cigarette paper, b is the distance from the hollowed out part to the upper side; c is the distance from the hollowed out part to the lower side, d is the length of the hollowed out cigarette paper, and e is the distance from the left and right margins of the hollowed out part, and g is the width of the hollowed out cigarette paper; input the designed pattern into the paper laser hollowing machine, and laser hollow out the outer base paper of the hollowed out cigarette paper to obtain the outer paper of the hollowed out cigarette paper;

(10) Apply white latex to the inner layer paper of the hollowed out cigarette paper on the paper laminating machine by diamond-shaped gluing method, and compound it with the outer layer paper of the hollowed out cigarette paper to obtain the hollowed out double layered cigarette paper; the fibers in each hollowed out double layered cigarette paper 75g, filler 20g, moisture 5g, combustion enhancer 1g.

Embodiment 3: As shown in Figure 1, the preparation method of this hollowed-out double-layer cigarette paper is as follows:

(1) Mix the fibers (wood pulp fiber and hemp pulp fiber, 1:2) with water, then disintegrate and beat in sequence to obtain fiber pulp, wherein the degree of knocking of fiber pulp is 100°;

(2) Mix the fiber slurry with filler (diatomaceous earth and talcum powder, 1:3, particle size 2-5 μm) and then make paper to obtain a mixed slurry;

(3) The mixed pulp is sequentially subjected to wire forming, press dehydration, embossing and first drying to obtain the first dry paper web, wherein the drying start temperature is 65°C and the end temperature is 105°C;

(4) The first dried paper web is subjected to surface sizing and second drying in sequence to obtain base paper for the outer layer of cigarette paper, wherein the starting temperature of drying is 40°C, the ending temperature is 75°C, and the sizing agent is determined by mass It is composed of 98% water and 2% by mass of combustion accelerant (potassium malate, sodium tartrate, potassium lactate, 1:1:1), and is sizing by sandwich extrusion;

(5) After mixing wood pulp fibers with water, disintegrate and beat in sequence to obtain fiber pulp, wherein the beating degree of fiber pulp is 95°;

(6) Mix the fiber slurry with (calcium carbonate, talcum powder, 1:1, particle size, 15-20 μm) and then make paper to obtain the mixed slurry;

(7) The mixed pulp is sequentially subjected to wire forming, press dehydration, embossing and first drying to obtain the first dry paper web, wherein the drying start temperature is 65°C and the end temperature is 110°C;

(8) The first dried paper web is subjected to surface sizing and second drying in sequence to obtain the inner layer paper of cigarette paper, wherein the starting temperature of drying is 40°C, the ending temperature is 80°C, and the sizing agent is prepared by It is composed of 98% water by mass and 2% combustion improver (potassium citrate) by mass, and is sizing by comma roller coating;

(9) As shown in Figure 2-4, first determine that a is the hollowed out position of the outer base paper of the cigarette paper, b is the distance from the hollowed out part to the upper side; c is the distance from the hollowed out part to the lower side, d is the length of the hollowed out cigarette paper, and e is the distance from the left and right margins of the hollowed out part, and g is the width of the hollowed out cigarette paper; input the designed pattern into the paper laser hollowing machine, and laser hollow out the outer base paper of the hollowed out cigarette paper to obtain the outer paper of the hollowed out cigarette paper;

(10) Apply white latex to the inner layer paper of the hollowed out cigarette paper on the paper laminating machine by diamond-shaped gluing method, and compound it with the outer layer paper of the hollowed out cigarette paper to obtain the hollowed out double layered cigarette paper; the fibers in each hollowed out double layered cigarette paper 80g, filler 35g, moisture 4.5g, combustion enhancer 0.5g.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments, and what described in the above-mentioned embodiments and the description only illustrates the principles of the present invention, and the present invention will also have other functions without departing from the spirit and scope of the present invention. Variations and improvements all fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. A preparation method of hollowed-out double-layer cigarette paper is characterized in that designed patterns are input into a paper laser hollowing machine according to different cutting specifications and requirements of the cigarette paper, after hollowing positions and side distances are determined, laser hollowing is conducted on prepared cigarette paper outer layer base paper to obtain hollowed-out cigarette paper outer layer paper, then the cigarette paper inner layer paper is glued on a paper compounding machine and then is compounded with the hollowed-out cigarette paper outer layer paper to obtain the hollowed-out double-layer cigarette paper.

2. The preparation method of the hollowed double-layer cigarette paper according to claim 1, which comprises the following specific steps:

(1) mixing fibers with water, and then sequentially performing disintegration and pulping to obtain fiber pulp;

(2) mixing the fiber slurry with a filler, and then making the mixture into paper to obtain mixed slurry;

(3) sequentially molding, dehydrating, embossing and drying the mixed slurry to obtain a dry paper web;

(4) sequentially performing surface sizing and drying on the dried paper web to obtain the outer base paper of the cigarette paper;

(5) preparing inner paper of the cigarette paper by referring to the processes in the steps (1) to (4);

(6) inputting designed patterns into a paper laser hollow-out machine according to different cutting specifications and requirements, designing hollow-out positions and edge distances, and carrying out laser hollow-out on the outer base paper of the cigarette paper to obtain outer paper of the hollow-out cigarette paper;

(7) gluing the inner paper of the cigarette paper on a paper compounding machine, and compounding the inner paper with the outer paper of the hollowed cigarette paper to obtain the hollowed double-layer cigarette paper;

the prepared hollow double-layer cigarette paper comprises the following components in parts by mass: 65-85 parts of fiber, 15-40 parts of filler, 4.5-5 parts of water and 0.5-2 parts of combustion improver.

3. The preparation method of the hollowed double-layer cigarette paper according to claim 2, characterized in that: the fibers are wood pulp fibers and/or hemp pulp fibers.

4. The preparation method of the hollowed double-layer cigarette paper according to claim 2, characterized in that: the filler is one or more of calcium carbonate, talcum powder and diatomite in any ratio; the particle size of the filler is 2-20 μm.

5. The preparation method of the hollowed double-layer cigarette paper according to claim 2, characterized in that: the sizing agent used for surface sizing comprises 95.5-98% of water and 2-4.5% of combustion improver.

6. The preparation method of the hollowed double-layer cigarette paper according to claim 5, characterized in that: the combustion improver is one or more of citrate, malate, tartrate and lactate.

7. The preparation method of the hollowed double-layer cigarette paper according to claim 1, characterized in that: and gluing the inner paper of the cigarette paper by adopting a rhombic gluing mode.

8. The double-layer hollow cigarette paper prepared by the preparation method of the double-layer hollow cigarette paper according to any one of claims 1 to 7.