Novel paper as well as preparation method and application thereof

Abstract

A filler of the novel paper comprises an insoluble organic acid calcium salt and calcium carbonate, and the amount of the insoluble organic acid calcium salt is 0-30 wt% of the total mass of the calcium carbonate and the insoluble organic acid calcium salt, and is not 0. The invention further discloses a preparation method and application of the novel paper. Insoluble organic acid calcium salt is added in the paper manufacturing process, the particle size distribution of the insoluble organic acid calcium salt is required to be the same as that of calcium carbonate, and the insoluble organic acid calcium salt replaces a part of calcium carbonate to serve as a filler. The ash coagulation index can be obviously reduced, and smoke components and sensory quality are not obviously changed. On the premise of not changing other design parameters, the cigarette paper can be directly used instead of conventional cigarette paper.

Description

Technical Field

[0001] The invention belongs to the technical field of cigarettes, and specifically relates to a new type of paper, a preparation method and use thereof Background Art

[0002] Twenty years ago, cigarette paper only played a major role in packaging tobacco, which was rolled on a 5000-6000 cigarette / min cigarette machine to make a solid and flawless cigarette rod. The core indicators of traditional cigarette paper are weight and air permeability, but nowadays cigarette paper must meet multiple functions, such as satisfying the taste requirements while also providing exquisite appearance support for the brand image; it can be seen that cigarette paper is no longer just a role of wrapping tobacco and making cigarettes cylindrical, but carries more functional roles.

[0003] In recent years, as consumers have been pursuing a higher quality of cigarettes, designers have added more elements to cigarette paper, and the ash-setting performance of cigarettes is one of them. Ash-setting performance refers to the columnar ash after burning cigarettes, including the ability of the external cigarette paper ash and the internal tobacco ash to maintain their cylindrical appearance without producing fly ash. Cigarettes with better ash-setting performance often give consumers a sense of superior quality, and can also reduce the probability of fires caused by residual sparks in the ash falling to the ground. Therefore, it has become one of the goals of major cigarette companies to improve their cigarette products.

[0004] At present, the common methods for improving the ash-setting property of cigarettes from the perspective of cigarette paper are: first, increasing the weight of cigarette paper, that is, increasing the amount of filler calcium carbonate, but this will bring about changes in the properties of cigarette paper such as air permeability, and ultimately affect various indicators of cigarettes. The most affected is the tar release of cigarettes. The increase of calcium carbonate will also increase the tar release of cigarettes; in addition, the actual retention rate of calcium carbonate on cigarette paper is also subject to many restrictions. When the amount is too large, it may also cause problems such as uneven dispersion of calcium carbonate. Second, increase the amount of sodium citrate in cigarette paper. As a common combustion regulator for cigarette paper, sodium citrate mainly functions to reduce the burning rate of cigarette paper and match the burning rate of cigarette paper with tobacco, thereby improving the ash-wrapping effect. The disadvantage of increasing the amount of sodium citrate is that it increases the number of puffs of cigarettes, which significantly increases the tar content. Third, add phosphate as an ash-setting agent. The effect of this method is the most significant, and the disadvantage is that the sensory quality of cigarette products will be greatly affected, and the whiteness of the cigarette ash column will be greatly reduced. In addition, the inventors have previously tried to improve the whiteness of the cigarette ash column by adding calcium acetate, see patent CN 2020113549686; however, this method has no obvious effect on improving the ash coagulation of cigarettes, and requires changes to the production process and equipment, resulting in a high investment cost.

[0005] In order to solve the above problems, the present invention is proposed. Summary of the invention

[0006] The present invention reduces the instability of cigarette paper products caused by differences in physical parameters by replacing part of the calcium carbonate used as cigarette paper filler with insoluble organic acid calcium salt and controlling the particle sizes thereof to be similar.

[0007] The ash condensation index described in the present invention uniformly refers to the value obtained by multiplying the ratio of the area of ​​the ash split mark part to the overall area of ​​the cigarette paper by 100. For example, if the area of ​​the ash split mark part accounts for 5.0% of the overall area, the ash condensation index is 5.0. In other words, the higher the ash condensation index, the worse the ash wrapping performance of the cigarette paper.

[0008] The technical solution of the present invention is as follows:

[0009] The first aspect of the present invention discloses a novel paper, wherein the filler comprises insoluble organic acid calcium salt and calcium carbonate, wherein the amount of the insoluble organic acid calcium salt is 0-30wt% of the total mass of the calcium carbonate and the insoluble organic acid calcium salt, and is not zero.

[0010] Preferably, the insoluble organic acid calcium salt is one or more of calcium citrate, calcium tartrate and calcium malate.

[0011] Preferably, based on mass percentage, the amount of the insoluble organic acid calcium salt is 10-20 wt % of the total mass of the calcium carbonate and the insoluble organic acid calcium salt.

[0012] Preferably, the particle size distribution of the insoluble organic acid calcium salt is the same as the particle size distribution of the calcium carbonate.

[0013] The second aspect of the present invention discloses a method for preparing the novel paper, comprising the following steps:

[0014] (1) firstly mixing the fiber and the insoluble organic acid calcium salt to obtain a mixture;

[0015] (2) during the pulping process of paper, adding 15-25 wt% of the total amount of the mixture in step (1);

[0016] (3) After stirring for 5-15 minutes, add calcium carbonate and the remaining mixture;

[0017] (4) Carry out the subsequent paper preparation process to obtain the novel paper.

[0018] The third aspect of the present invention discloses the use of the novel paper as cigarette paper.

[0019] Preferably, the cigarette paper is used to improve the ash-setting property of the cigarette.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The new paper of the present invention is used for cigarettes, and the ash index is significantly improved. The ash index is tested according to the standard method, and it is found that the ash index can generally be reduced by 4-9 units.

[0022] 2. The novel paper of the present invention is used for cigarettes, and the physical indicators of the cigarette paper and the cigarettes do not change significantly: since the amount of insoluble organic acid calcium added is small, the physical indicators of the cigarette paper and the cigarettes produced do not change significantly, and they can be directly replaced in industrial products.

[0023] 3. The new paper of the present invention is used for cigarettes, and the smoke composition and sensory quality of the cigarettes are basically unchanged. After standard method testing and sensory evaluation, it was found that the new paper of the present invention did not cause significant changes in smoke composition and sensory quality of cigarettes, and the test data were basically within the allowable error range. This shows that the existing cigarette paper can be directly replaced without the need to adjust other design parameters. The present invention adds insoluble organic acid calcium salts during the paper manufacturing process to replace part of the calcium carbonate as a filler, ensuring that the total mass of the insoluble organic acid calcium salts and calcium carbonate remains unchanged, so as to control the parameters such as the grammage and air permeability of the cigarette paper; at the same time, the particle size distribution of the insoluble organic acid calcium salts is required to be basically the same as the particle size distribution of the calcium carbonate, so as to ensure that the physical indicators and smoke composition of the cigarettes using the cigarette paper will not be significantly offset. The specific replacement amount can be adjusted according to the actual cigarette design needs.

[0024] 4. The preparation method of the paper of the present invention only adds a two-step feeding process in the first step of manufacturing, which has no impact on the production of calcium carbonate and the subsequent cigarette paper production process. It is simple and easy to implement with low investment cost. Among them, insoluble organic acid calcium must be added before ordinary calcium carbonate. Since insoluble organic acid calcium has the dual characteristics of organic groups and inorganic ions, it can establish a stronger affinity between fiber and calcium carbonate, thereby improving the retention rate of calcium carbonate. When the paper of the present invention is used in cigarettes, under the same other conditions, the ash index of cigarettes using ordinary calcium carbonate cigarette paper can be reduced by 4-9 units, and the sensory quality and smoke component release amount are not affected. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below through specific embodiments, but this should not be construed as limiting the scope of the present invention to the following examples. Various substitutions and changes made according to common technical knowledge and customary means in the art without departing from the above-mentioned method concept of the present invention should be included in the scope of the present invention.

[0026] The tar release amounts in the examples are values ​​obtained using standard testing methods in the tobacco industry.

[0027] The novel paper of the present invention has fillers comprising insoluble organic acid calcium salt and calcium carbonate, wherein the amount of the insoluble organic acid calcium salt is 10-20wt% of the total mass of the calcium carbonate and the insoluble organic acid calcium salt.

[0028] Wherein, the insoluble organic acid calcium salt is one or more of calcium citrate, calcium tartrate and calcium malate.

[0029] Wherein, the particle size distribution of the insoluble organic acid calcium salt is the same as the particle size distribution of the calcium carbonate.

[0030] The method for preparing the novel paper of the present invention comprises the following steps:

[0031] (1) firstly mixing the fiber and the insoluble organic acid calcium salt to obtain a mixture;

[0032] (2) during the pulping process of paper, adding 15-25 wt% of the total amount of the mixture in step (1);

[0033] (3) After stirring for 5-15 minutes, add calcium carbonate and the remaining mixture;

[0034] (4) Carry out the subsequent paper preparation process to obtain the novel paper.

[0035] The novel paper of the invention is used for cigarette paper to improve the ash-binding property of cigarettes.

[0036] Example 1: Preparation of a novel paper and its use as cigarette paper.

[0037] The insoluble organic acid calcium salt used in the paper roll manufacturing process is calcium citrate, and the added amount is 10wt% of the total mass of calcium carbonate and calcium citrate. The paper pulping process is as follows: firstly, the fiber and calcium citrate are mixed and 20wt% of the total amount of the mixture is added; after stirring for 10 minutes, conventional calcium carbonate and the remaining amount of the mixture are added; the subsequent normal process flow of paper preparation is carried out without changing the normal process conditions and sequence, but no calcining agent is added; the final produced paper is 32g / m 2 , 70CU.

[0038] Replaces regular 32g / m 2 , 70CU cigarette paper products were made into cigarettes (2#) and compared with the original cigarettes (1#). The results are as follows:

[0039] Sample No. tuff index Tar release (mg) 1# 8.1 11.0 2# 3.7 11.0

[0040] As can be seen from the table above, compared with the original cigarette sample, the ash index of the same standard cigarette paper (weight and air permeability) produced by this method is significantly improved, and the smoke release is basically unchanged. According to sensory evaluation, there is no significant difference in the sensory quality of the smoke of the two cigarettes, and they can be directly replaced.

[0041] Example 2: Preparation of a novel paper and its use as cigarette paper.

[0042] The insoluble organic acid calcium salt used in the paper manufacturing process is calcium tartrate, and the added amount is 20wt% of the total mass of calcium carbonate and calcium tartrate. The pulping process of paper is as follows: firstly, the fiber and calcium tartrate are mixed and 20wt% of the total mixture is added, and after stirring for 10 minutes, conventional calcium carbonate and the remaining mixture are added, and the subsequent normal process flow of paper preparation is carried out without changing the normal process conditions and sequence, but no calcining agent is added; the final produced paper is 30g / m 2 , 60CU.

[0043] Replaces regular 30g / m 2 , 60CU cigarette paper products were made into cigarettes (2#) and compared with the original cigarettes (1#). The results are as follows:

[0044] Sample No. tuff index Tar release (mg) 1# 10.6 10.0 2# 2.5 10.0

[0045] As can be seen from the table above, compared with the original cigarette sample, the ash index of the same standard cigarette paper (weight and air permeability) produced by this method is significantly improved, and the smoke release is basically unchanged. According to sensory evaluation, there is no significant difference in the sensory quality of the smoke of the two cigarettes, and they can be directly replaced.

[0046] Example 3: Preparation of a novel paper and its use as cigarette paper.

[0047] The insoluble organic acid calcium salt used in the paper manufacturing process is calcium malate, and the amount added is 15% of the total mass of calcium carbonate and calcium malate. The pulping process of paper is as follows: first, the fiber and calcium malate are mixed and 20% of the total mixture is added, and after stirring for 10 minutes, conventional calcium carbonate and the remaining mixture are added, and the subsequent normal process flow of paper preparation is carried out without changing the normal process conditions and sequence, but no calcining agent is added; the final produced paper is 38g / m 2 , 50CU.

[0048] Replaces regular 38g / m 2 , 50CU cigarette paper products were made into cigarettes (2#) and compared with the original cigarettes (1#). The results are as follows:

[0049] Sample No. tuff index Tar release (mg) 1# 9.8 11.0 2# 3.9 11.0

[0050] As can be seen from the table above, compared with the original cigarette sample, the ash index of the same standard cigarette paper (weight and air permeability) produced by this method is significantly improved, and the smoke release is basically unchanged. According to sensory evaluation, there is no significant difference in the sensory quality of the smoke of the two cigarettes, and they can be directly replaced.

[0051] Example 4: Preparation of a novel paper and its use as cigarette paper.

[0052] The insoluble organic acid calcium salt used in the paper manufacturing process is calcium citrate, and the added amount is 30wt% of the total mass of calcium carbonate and calcium citrate. The pulping process of the paper is as follows: firstly, the fiber and calcium citrate are mixed and 20wt% of the total mixture is added, and after stirring for 10 minutes, conventional calcium carbonate and the remaining mixture are added, and the subsequent normal process flow of paper preparation is carried out without changing the normal process conditions and sequence, but no ash setting agent is added; the final produced paper is 28g / m 2 , 70CU.

[0053] Replaces regular 28g / m 2 , 70CU cigarette paper products were made into cigarettes (2#) and compared with the original cigarettes (1#). The results are as follows:

[0054] Sample No. tuff index Tar release (mg) 1# 11.2 10.0 2# 4.6 10.0

[0055] As can be seen from the table above, compared with the original cigarette sample, the ash index of the same standard cigarette paper (weight and air permeability) produced by this method is significantly improved, and the smoke release is basically unchanged. According to sensory evaluation, there is no significant difference in the sensory quality of the smoke of the two cigarettes, and they can be directly replaced.

[0056] Example 5: Preparation of a novel paper and its use as cigarette paper.

[0057] The insoluble organic acid calcium salt used in the paper manufacturing process is calcium citrate, and the added amount is 25wt% of the total mass of calcium carbonate and calcium citrate. The pulping process of paper is as follows: first, the fiber and calcium citrate are mixed and 20wt% of the total mixture is added; after stirring for 10 minutes, conventional calcium carbonate and the remaining mixture are added, and the subsequent normal process flow of paper preparation is carried out without changing the normal process conditions and sequence, but no calcining agent is added; the final produced paper is 32g / m 2 , 50CU.

[0058] Replaces regular 32g / m 2 , 50CU cigarette paper products were made into cigarettes (2#) and compared with the original cigarettes (1#). The results are as follows:

[0059] Sample No. tuff index Tar release (mg) 1# 9.4 11.0 2# 3.1 11.0

[0060] As can be seen from the table above, compared with the original cigarette sample, the ash index of the same standard cigarette paper (weight and air permeability) produced by this method is significantly improved, and the smoke release is basically unchanged. According to sensory evaluation, there is no significant difference in the sensory quality of the smoke of the two cigarettes, and they can be directly replaced.

[0061] The above description is only used to introduce the specific implementation methods of the present invention in detail, but the technical solution proposed by the present invention is not limited to the above method. Without departing from the basic principles of the present technology, equivalent modifications and changes made by those skilled in the art to the technology proposed by the present invention should be included in the scope of the claims of the present invention.

Claims

1. A new type of paper, characterized in that: The filler comprises insoluble organic acid calcium salt and calcium carbonate, wherein the amount of the insoluble organic acid calcium salt is 0-30wt% of the total mass of the calcium carbonate and the insoluble organic acid calcium salt, and is not zero.

2. The novel paper according to claim 1, characterized in that: The insoluble organic acid calcium salt is one or more of calcium citrate, calcium tartrate and calcium malate.

3. The novel paper according to claim 1, characterized in that: Based on mass percentage, the amount of the insoluble organic acid calcium salt is 10-20 wt % of the total mass of the calcium carbonate and the insoluble organic acid calcium salt.

4. The novel paper according to claim 1, characterized in that: The particle size distribution of the insoluble organic acid calcium salt is the same as that of the calcium carbonate.

5. The method for preparing the novel paper according to any one of claims 1 to 4, characterized in that: The steps include: (1) firstly mixing the fiber and the insoluble organic acid calcium salt to obtain a mixture; (2) during the pulping process of paper, adding 15-25 wt% of the total amount of the mixture in step (1); (3) After stirring for 5-15 minutes, add calcium carbonate and the remaining mixture; (4) Carry out the subsequent paper preparation process to obtain the novel paper.

6. Use of the novel paper according to any one of claims 1 to 4 as cigarette paper.

7. The use according to claim 6, characterized in that Cigarette paper is used to improve the ash-setting properties of cigarettes.