Method for manufacturing deodorant or deodorizing paper

Abstract

To provide a method for manufacturing a deodorant and a deodorizing paper that exhibit excellent deodorizing effects against an acetic acid, which is a pungent odor such as sweat odor, excrement odor, or tobacco odor; ammonia, which is a pungent odor such as the odors of toilets and urine; and formaldehyde, which causes the pungent odor associated with a sick building syndrome.SOLUTION: In the present invention, we have decided to manufacture a deodorant by heating and carbonizing coffee beans that have been roasted and then crushed, in the production method of a deodorant. Moreover, in the present invention, we have decided to manufacture a deodorizing paper by heating and carbonizing coffee beans that have been roasted and then crushed, and incorporating this material into the paper pulp before forming the deodorizing paper. Moreover, in the present invention, we have decided to dry the residue obtained after extracting coffee components using water following the crushing step, to grind it further into a finer powder, and subsequently to carbonize it by heating. Furthermore, in the present invention, we have decided to carbonize by heating at a temperature higher than that of the roasting.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a method for producing a deodorizer or deodorizing paper. [Background technology]

[0002] Coffee-containing beverages (coffee beverages) are produced in large quantities and consumed daily. These coffee beverages are produced in factories by extracting coffee components from roasted and crushed coffee beans.

[0003] At coffee beverage manufacturing plants, coffee grounds, the residue from which the coffee components are extracted, are generated in large quantities as waste.

[0004] Coffee grounds have been effectively used not only as biomass fuel but also as a deodorizing component in biomass fertilizers and the like (see, for example, Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-3280 [Patent Document 2] Japanese Patent Application Publication No. 2022-29391 Summary of the Invention [Problem to be solved by the invention]

[0006] However, after extensive research, the inventors found that using coffee grounds as a deodorizer as is, as in the past, does not have a good deodorizing effect on acetic acid, which has irritating odors such as sweat odor, excrement odor, and cigarette odor, ammonia, which has irritating odors such as toilet odor and urination odor, and formaldehyde, which has an irritating odor that causes sick building syndrome. [Means for solving the problem]

[0007] Therefore, in the present invention according to claim 1, in the method for manufacturing a deodorizer, coffee beans are roasted and then crushed, and then heated to carbonize them to manufacture the deodorizer.

[0008] In addition, in the present invention according to claim 2, in the method for manufacturing deodorizing paper, coffee beans are roasted and then crushed, which are then heated and carbonized, and this is mixed with the raw materials for paper and paper-made to produce deodorizing paper.

[0009] Furthermore, in the present invention according to claim 3, in the present invention according to claim 2, the residue obtained by extracting the coffee components using water after the crushing is dried, further finely ground, and then heated and carbonized.

[0010] In addition, in the present invention according to claim 4, in the present invention according to claim 2 or claim 3, the carbonization is carried out by heating at a temperature higher than the roasting temperature. [Effects of the Invention]

[0011] According to the present invention, it is possible to produce a deodorizer or deodorizing paper that exhibits a good deodorizing effect against acetic acid, which is an irritating odor such as sweat odor, excretion odor, or cigarette odor, ammonia, which is an irritating odor such as toilet odor or urination odor, and formaldehyde, which is an irritating odor that causes sick building syndrome. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is an explanatory diagram showing a method for producing a deodorant (deodorizing paper) according to the present invention. [Figure 2] Graph showing the change in acetic acid concentration over time. [Figure 3] Graph showing the change in ammonia concentration over time. [Figure 4] Graph showing the change in formaldehyde concentration over time. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, a specific configuration of the method for producing a deodorant (deodorant paper) according to the present invention will be described with reference to the drawings.

[0014] As shown in Figure 1, the deodorizer is first made from raw coffee beans, which are heated at a predetermined temperature (e.g., 200°C) for a predetermined time (e.g., 30 minutes) and roasted carefully to avoid carbonization.

[0015] The roasted coffee beans are then crushed using a coffee mill into small particles or powder (for example, 1 mm) to produce coffee granules.

[0016] The coffee grounds are then placed on a filter, and hot water (e.g., 90°C) is poured over them to extract the coffee components. The extracted coffee components can be effectively used as a coffee-containing beverage (coffee drink). Meanwhile, the residue after the coffee components have been extracted can be effectively used as coffee grounds, a biomass fuel, and a deodorizing ingredient in biomass fertilizers and other products. However, as will be described later, it has been found that even if coffee grounds at this stage are used as a deodorizer, they do not provide a satisfactory deodorizing effect against acetic acid, which is a pungent odor associated with sweat, excrement, and tobacco, ammonia, which is a pungent odor associated with toilet and urination, and formaldehyde, which is a pungent odor that can cause sick building syndrome.

[0017] Therefore, in the present invention, the following treatment is carried out on the coffee grounds.

[0018] First, the coffee grounds are dried (either naturally or by forced drying) to reduce the moisture content (for example, to a moisture content of 10% or less).

[0019] The dried coffee grounds are then crushed into a powder (for example, 0.5 mm) that is even finer than coffee granules, to produce coffee powder.

[0020] The coffee grounds are then heated at a predetermined temperature (for example, 500°C to 600°C) for a predetermined time (for example, one day) to carbonize the coffee grounds into carbonized coffee grounds. When carbonizing the coffee grounds, the temperature is raised from room temperature to a predetermined temperature (for example, 500°C to 600°C) over a period of one day, left at that temperature for one day to carbonize, and then the temperature is lowered from the predetermined temperature (for example, 500°C to 600°C) to room temperature over a period of one day.

[0021] Here, when carbonizing the coffee powder, the coffee powder is heated at a higher temperature and for a longer time than when roasting coffee beans, so as to ensure that all of the coffee powder is carbonized.

[0022] The carbonized coffee grounds produced in this manner exhibit a deodorizing effect and can be used as a deodorizer.

[0023] In the present invention, this deodorant is further mixed into paper raw materials (for example, pulp) and then paper-made to produce a paper-like (sheet-like) deodorizing body (deodorizing paper). The deodorant is mixed into the paper raw materials at a weight ratio of 3% to 5%. If the mixing ratio is less than 3%, the deodorizing effect may be weakened, and if the mixing ratio is more than 5%, the powder deodorant may peel off and fall off from the mixed deodorant paper.

[0024] It has been confirmed that the deodorizing paper (carbonized coffee grounds mixed paper) produced using the above production method has a deodorizing effect on various odors, particularly on acetic acid, which is an irritating odor such as sweat odor, excrement odor, and cigarette odor, ammonia, which is an irritating odor such as toilet odor and urination odor, and formaldehyde, which is an irritating odor that causes sick building syndrome.

[0025] The results are shown in Table 1. Here, the types of gases that are the source of odors were acetic acid, ammonia, and formaldehyde, and the change in gas concentration over time was investigated for normal paper made from paper raw materials, coffee grounds-blended paper made from paper raw materials mixed with coffee grounds, and carbonized coffee grounds-blended paper made by the above manufacturing method.

[0026] [Table 1]

[0027] The results shown in Table 1 are shown in graphs in FIGS.

[0028] As shown in Table 1 and Figure 2, when the odor source is acetic acid, with regular paper, there is almost no change in concentration in the first 30 minutes or so, and even after 6 hours, there is only a 30% decrease in concentration, which shows that the decrease in acetic acid concentration is due to the inherent adsorption by the paper.

[0029] In contrast, with the coffee grounds mixed paper, only a slight change in concentration was observed in the first 30 minutes or so, and the immediate deodorizing effect could not be confirmed, but after 6 hours, the concentration was reduced by about 46%, confirming the reduction in acetic acid concentration (deodorizing effect) due to the coffee grounds.

[0030] Furthermore, in the case of paper containing carbonized coffee grounds, the concentration was reduced by 80%, from 50 ppm to 10 ppm, within the first 30 minutes or so, confirming the immediate effectiveness of the deodorizing effect.Furthermore, after 6 hours, the concentration was reduced by 96%, confirming the remarkable deodorizing effect.

[0031] Furthermore, as shown in Table 1 and Figure 3, when the odor source is ammonia, with regular paper, there is almost no change in concentration in the first 30 minutes or so, and even after 6 hours there is only a 27% decrease in concentration, which shows that the rate of decrease in ammonia concentration due to the paper's inherent adsorption is about 27%.

[0032] In contrast, with the coffee grounds mixed paper, only a slight change in concentration was observed in the first 30 minutes or so, and the immediate deodorizing effect could not be confirmed, but after 6 hours, the concentration was reduced by about 65%, confirming the reduction in ammonia concentration (deodorizing effect) due to the coffee grounds.

[0033] Furthermore, in the case of paper containing carbonized coffee grounds, the concentration was reduced by 85%, from 100 ppm to 15 ppm, within the first 30 minutes or so, confirming the immediate effectiveness of the deodorizing effect.Furthermore, after 6 hours, the concentration was reduced by 98%, confirming the remarkable deodorizing effect.

[0034] Furthermore, as shown in Table 1 and Figure 4, when the odor source is formaldehyde, with regular paper, there is almost no change in concentration in the first 30 minutes or so, and even after 6 hours there is almost no change in concentration, indicating that the reduction in formaldehyde concentration due to the paper's inherent adsorption is approximately 0%.

[0035] In contrast, with the coffee grounds mixed paper, only a slight change in concentration was observed in the first 30 minutes or so, and the immediate deodorizing effect could not be confirmed, but after 6 hours, the concentration was reduced by about 60%, confirming the reduction in formaldehyde concentration (deodorizing effect) due to the coffee grounds.

[0036] Furthermore, in the case of paper containing carbonized coffee grounds, the concentration was reduced by 50%, from 20 ppm to 10 ppm, within the first 30 minutes or so, confirming the immediate effectiveness of the deodorizing effect.Furthermore, after 6 hours, the concentration was reduced by 90%, confirming the remarkable deodorizing effect.

[0037] As explained above, in the present invention, coffee beans are roasted and then crushed, and the crushed beans are heated and carbonized to produce a deodorizer.

[0038] Therefore, the deodorizer produced by the above production method has a better deodorizing effect than coffee grounds, and in particular, it is possible to produce a deodorizer that exhibits good deodorizing effect against acetic acid, which is an irritating odor such as sweat odor, excretion odor, and tobacco odor, ammonia, which is an irritating odor such as toilet odor and urination odor, and formaldehyde, which is an irritating odor that causes sick building syndrome.

[0039] In addition, in the present invention, coffee beans are roasted and then crushed, which are then heated and carbonized, and this is mixed with paper raw materials and paper is made into deodorizing paper.

[0040] Therefore, the deodorizing paper produced by the above-mentioned production method has a better deodorizing effect than coffee grounds, and it is possible to produce deodorizing paper that exhibits good deodorizing effect especially against acetic acid, which is an irritating odor such as sweat odor, excrement odor, and tobacco odor, ammonia, which is an irritating odor such as toilet odor and urination odor, and formaldehyde, which is an irritating odor that causes sick building syndrome.

[0041] Furthermore, deodorizing paper, which incorporates a deodorizing agent that exerts a deodorizing effect, can disperse the deodorizing agent on the surface of the paper, thereby increasing the contact area (number of contacts) between the deodorizing agent and odors. Moreover, deodorizing paper can be effectively used for a variety of purposes, including building materials such as wallpaper and sliding doors, daily necessities such as business cards and letter paper, wrapping paper, and distribution materials such as advertisements and pamphlets.

[0042] In addition, in the above manufacturing method, after crushing, the coffee components are extracted with water, and the residue is dried, further finely ground, and then heated and carbonized.

[0043] Therefore, the deodorizing paper produced by the above manufacturing method has a reduced moisture content, which prevents the growth of mold, and is also crushed more finely than coffee grounds, increasing the surface area that can be carbonized, thereby increasing the deodorizing effect.

[0044] In addition, in the above manufacturing method, the material is heated to a temperature higher than the roasting temperature to carbonize it.

[0045] Therefore, the deodorizing paper manufactured by the above manufacturing method can reliably carbonize all of the coffee powder, thereby increasing the deodorizing effect.

Claims

1. This method for producing a deodorizer is characterized in that the deodorizer is produced by heating and carbonizing roasted and crushed coffee beans.

2. This method for producing deodorizing paper is characterized in that coffee beans are roasted and then crushed, then heated to carbonize, and the carbonized product is mixed with paper raw materials and paper-made to produce deodorizing paper.

3. The method for producing deodorizing paper according to claim 2, characterized in that the residue obtained by extracting the coffee components using water after the crushing is dried, further finely pulverized, and then heated and carbonized.

4. 4. The method for producing deodorizing paper according to claim 2 or 3, wherein the paper is heated to a temperature higher than the roasting temperature to carbonize the paper.

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