JPH0243917Y2 - - Google Patents

Description

[Detailed explanation of the idea]

a. Field of Industrial Application The present invention relates to a deodorizing aromatic paper, and in particular to a paper containing a required amount of sepiolite and a chemical deodorizing agent and an aromatic agent added to the paper to have a deodorizing and aromatic effect. b. Prior Art Various configurations have been proposed for papers with this type of adsorption and deodorizing properties that have been used in the past, but these proposals can be roughly divided into paper containing activated carbon and non-woven paper. Paper, such as untreated ordinary paper, is impregnated with a chemical deodorizer to give it deodorizing properties. To describe the typical structure of these conventional examples, a sheet-like material that adsorbs ammonia (Japanese Unexamined Patent Publication No. 59-95931 (disclosed in Japanese Patent Application Laid-open Publication No. 53-6611), adsorbent-containing paper containing pulp mixed with finely powdered activated carbon as an adsorption medium, and adsorbent-containing paper containing adsorbent powder made by finely dividing sepiolite (disclosed in Japanese Patent Application Laid-Open No. 1983-6611). etc. have been proposed. Further, an odor-absorbing material mainly composed of cellulose fibers and a magnesium silicate clay mineral having an amorphous portion of 50 to 3000 parts by weight per 100 parts by weight of the cellulose fibers (Japanese Patent Laid-Open No. 136438/1983)
is proposed. c. Problems to be solved by the invention Conventional paper having adsorption and deodorizing properties was constructed as described above, and therefore had various problems as described below. (1) First, paper containing activated carbon is black in color and has excellent adsorption properties for sulfur-based compounds, but
The adsorption of ammonia is small, so it has deodorizing properties but not deodorizing properties. (2) In addition, in the case of nonwoven fabrics made of organic fibers, they contain water absorbing and swelling agents, so they have excellent water absorbing properties, but they do not have deodorizing properties and generally require compounding with chemical deodorizing agents. There is. (3) In addition, ordinary paper with deodorizing functions added in post-processing has a relatively smooth surface and has extremely few pores that trap foul-smelling gases, so its adsorption properties are small. The actual situation is that the function as a carrier for chemical deodorants is small. (4) Paper containing sepiolite also exists, but because sepiolite is fibrous and has heat resistance, it is mainly used for gasket materials that require mechanical strength and heat resistance. However, there is still no paper that has adsorption and deodorizing properties that effectively utilize the adsorption properties based on the porosity of sepiolite. The present invention was made to solve the above-mentioned problems.In particular, a chemical deodorizing agent and an aromatic agent are added to paper containing a required amount of sepiolite to create a deodorizing aromatic paper that has deodorizing and aromatic effects. The purpose is to obtain. d. Means for Solving the Problems The deodorizing aromatic paper according to the present invention has sepiolite in an amount of about 20 to 70% of the paper, and has a structure in which the paper contains a chemical deodorant and an aromatic agent. e Effect The deodorizing aromatic paper according to the present invention has excellent deodorizing and adsorption effects because the crystal structure of sepiolite has numerous fine pores when viewed in cross section. Also, because it contains chemical deodorants and fragrances,
It has a deodorizing effect and an aromatic effect, and when used by hanging it on a wall etc., it can deodorize a room and provide an aromatic effect. In particular, conventionally used chemical deodorants,
For example, the product name is Daimushyu [manufactured by Dainichiseika Co., Ltd.]
The paper impregnated with the present invention has an extremely excellent deodorizing effect. The reason for this is not fully understood, but it is probably because the chemical deodorant is adsorbed and retained by sepiolite, resulting in some kind of synergistic effect. f. Examples Hereinafter, preferred examples of the deodorizing aromatic paper according to the present invention will be described in detail with reference to the drawings. What is indicated by the reference numeral 1 in the drawing is a deodorizing aromatic paper formed in a square shape, and this deodorizing aromatic paper 1 consists of 20 to 70% sepiolite,
Further, it contains a chemical deodorizer and a fragrance, and an adhesive means 2 made of adhesive tape or the like is formed on the back side. The sepiolite used in this invention can be roughly divided into two types of occurrence. One of them is produced as an evaporite type deposit, and the others are produced as secondary deposits. Sepiolite, which is produced as a secondary deposit, is
This deposit is secondary crystallization of silicic acid dissolved in water that migrates into cracks and faults in dolomite deposits, and is known as Mountain Leather.
They are called Mountain cork, Mountain wood, etc. Known production areas include Spain, Turkey, Nevada in the United States, and Hunan Province in China. The composition of these natural sepiolites varies depending on the region of production, but for example, in the case of Spanish sepiolite,
_SiO2 52-55%, MgO 15-25%, crystal water 10
~12%. In addition, in the case of Chinese products, SiO ₂ is 37-43% and CaO is
12-16%, MgO 17-20%, crystal water 15-20%
It is becoming. This sepiolite is an extremely flexible mineral, as it is called Mountain Leather, and this property is due to the fact that its crystal structure has tunnels, and water molecules exist in the tunnels between and within the fibers. as crystal water, and SiO ₄
It is thought that this is caused by the synergistic effect of the inversion of the tetrahedron. Its adsorption performance is due to the above-mentioned tunnel structure and because it has zeolite-like water of crystallization. The pore volume based on tunnels within the crystal is at most about 0.1 ml/g, or about 250 m ² /g. In particular, the pores around 200 Å are characteristic, and the pore volume is as large as 0.8 ml/g. The pores in this region are so-called transitional
They are called pores (traditional pores), and unlike micropores, which adsorb gaseous molecules, they have the property of sucking up liquid substances through capillary action with the smallest diameter. This transitional pore part is approximately
Since there is no significant change even when heated to about 700°C, this is thought to be due to pores created by voids between each fiber. Furthermore, this sepiolite is produced in the form of mud plates made up of fibers and powder, so
After mining, processing such as crushing and crushing is required. Next, Table 1 shows the characteristics of sepiolite after processing and natural zeolite.

[Table] Sepiolite, which is the main component of the paper according to the present invention, can be used in either fibrous or powdered form. In the case of fibrous material, it must be crushed using a turbo mill, hammer mill, etc. to avoid damaging the fibers as much as possible. The fibers are then dissociated and made into flexible fibers. Also, in the case of a powdered material, it is ground into a powder of 100 to 300 meshes using a turbo mill, hammer mill, or the like. This powder can be used as is, but in order to improve its adsorption properties, it is calcined for 20 to 30 minutes in an atmosphere of 500 to 600 °C.
It is more effective to use a product that has been activated after completely removing attached water. Therefore, in reality, cellulose pulp is mixed with the above-mentioned sepiolite powder or fibrous material,
This mixing is performed wet using a paper beater, a pulper, etc., and a general paper machine is used for sheet forming. In this case, the mixing ratio of sepiolite and cellulose is preferably 40 to 400 parts by weight of cellulose pulp to 100 parts by weight of sepiolite,
This is because if cellulose is less than 40 parts by weight, sepiolite will disperse in water and form a highly viscous suspension, which will have a clogging effect on cellulose fibers during the papermaking process. As a result, the water content is inhibited, and the paper making speed becomes extremely low or impossible. Moreover, contrary to the above, when the ratio of cellulose increases to 400 parts or more, the content of sepiolite in the paper decreases, and the adsorptivity becomes extremely small. In addition, in order to compound and strengthen the deodorizing properties of the paper according to the present invention, a chemical deodorizing agent (for example, an organic acid-based compound manufactured by Dainichiseika Chemical Co., Ltd.) is added to the inside of the paper during paper making, or this The solution can be applied to the paper by spraying onto the surface or by impregnation. Moreover, the paper according to the present invention has excellent properties as a deodorant and aromatic substance carrier material, so that it can maintain its effectiveness for a long period of time by post-processing the aromatic substance on the surface. Next, a specific example for manufacturing paper having adsorption and deodorizing properties according to the present invention will be described. Example A fibrous material of sepiolite was crushed and defibrated, and the data shown in Table 2 was obtained as a result of a rotor classification sieving test.

[Table] Add 150 parts of cellulose pulp and 2.5 parts of organic binder to 4000 parts of sepiolite fiber.
of water and prepared a homogeneous slurry using a laboratory beater. This was made into paper using a hand-made paper machine and dehydrated and dried to obtain paper with a thickness of 0.8 mm and a density of 0.42 g/cm ³ . Example 2 Powdered sepiolite was calcined for 20 minutes in an atmosphere of 500 to 600°C and ground to a fine powder of 100 to 300 meshes, and 100 parts of this sepiolite was mixed with 230 parts of cellulose pulp and an organic binder.
2.5 parts were mixed with 4000 parts of water and the same procedure as in Example 1 was carried out to obtain paper with a thickness of 0.8 mm and a density of 0.45 g/cm ³ . Example 3 To the composition obtained in Example 2, 5 parts of a chemical deodorant (Dainichiseika Daimushyu, organic acid composite type, powder form) was mixed with a beater, and the same composition as in Example 1 was prepared. Thickness 0.8mm, density 0.45 depending on operation
A paper of g/cm ³ was obtained. Example 4 The paper obtained in Example 2 was impregnated with a 1% solution of a chemical deodorant (Dainichiseika Daimushyu, organic acid composite type, liquid) and dried to obtain a sample containing this chemical deodorant. paper was obtained. In order to understand the deodorizing properties of the paper, characteristic tests for ammonia, trimethylamine, and hydrogen sulfide were conducted in the following manner, and a significant deodorizing effect was confirmed. Characteristic Test A (Deodorization of Ammonia) As a deodorization test paper, a) the paper obtained in Example 2, b) a chemical deodorizer [trade name Daimushyu (manufactured by Dainichiseika Co., Ltd.)] was applied to commercially available Kent paper. About 250 g/m ² of a 1% solution of the chemical deodorizer was applied to dry paper, c. The chemical deodorant solution was applied to the paper obtained in Example 2 at about 300 g/m ²
Adjust the impregnated and dry papers, each 50x
The test paper was 100 mm in size. After collecting 10μ of 28% ammonia water into a 300ml Erlenmeyer flask and gasifying it completely, put one of the test papers mentioned above and store it at 25℃. The residual concentration of ammonia in the flask was measured using a detection tube. Characteristic test B (deodorization of trimethylamine) Collect 10μ of a 0.6% trimethylamine aqueous solution into a 300μ Erlenmeyer flask, completely gasify it, then put one of the test papers mentioned above and store it at 25℃. After a predetermined period of time had elapsed, the residual concentration of trimethylamine in the flask was measured using a Kitagawa gas detection tube. Characteristic test C (deodorization of hydrogen sulfide) In a 300 μ capacity Erlenmeyer flask, add 1 ml of 800 ppm sodium hydrogen sulfide aqueous solution and 0.1 N sulfuric acid.
ml to generate hydrogen sulfide, then add one of the test strips mentioned above, store it at 25℃, and after a predetermined period of time, use a Kitagawa gas detection tube to detect hydrogen sulfide in the flask. The residual concentration was measured. The deodorizing results of test strips a), b) and c) for each of the aforementioned chemicals (ammonia, trimethylamine and hydrogen sulfide) are shown in Tables 3 and 4.
It is as shown in Table and Table 5.

【table】

【table】

[Table] Furthermore, the deodorizing effect on ammonia and hydrogen sulfide was measured when Daimshu 5002FZ was applied to commercially available Kent paper at various concentrations, and the results are shown in FIGS. 3 and 4. g. Effects of the invention Since the deodorizing aromatic paper according to the invention is configured as described above, the following effects can be obtained. (1) Because it uses crushed sepiolite plates or defibrated fibrous materials, it has countless pores and has sufficient adsorption and deodorizing properties, as well as deodorizing and aromatic properties. It can carry chemical deodorants and aromatic substances to impart properties, and in addition to adsorption and deodorization, it can also have sufficient deodorizing and aromatic effects. (2) Therefore, since the deodorizing aromatic paper according to the present invention has deodorizing and aromatic effects, by attaching it to the wall of a room via adhesive means, the interior of the room will always be filled with a pleasant scent, and It also eliminates unpleasant odors, allowing you to maintain a comfortable environment.

[Brief explanation of the drawing]

The drawings are for showing the deodorizing aromatic paper according to the present invention. Figure 1 is a plan view, Figure 2 is a right side view of Figure 1, and Figures 3 and 4 are illustrations of ammonia in the deodorizing aromatic paper according to the present invention. It is a characteristic diagram for showing the deodorization results for hydrogen sulfide and hydrogen sulfide. 1 is a deodorizing aromatic paper, and 2 is an adhesive means.

Claims (1)

[Claims for Utility Model Registration] (1) A deodorizing aromatic paper which contains 20 to 70% of the total amount of calcined sepiolite and which contains a chemical deodorizer and an aromatic agent. (2) The deodorizing aromatic paper according to claim 1 of the utility model registration claim, characterized in that letters, pictures, etc. are formed on the surface of the paper. (3) Utility model registration claim 1, characterized in that an adhesive part is formed on the back side of the paper.
The deodorizing aromatic paper according to item 1 or 2.