JPH0223188B2 - - Google Patents
Info
- Publication number
- JPH0223188B2 JPH0223188B2 JP60240472A JP24047285A JPH0223188B2 JP H0223188 B2 JPH0223188 B2 JP H0223188B2 JP 60240472 A JP60240472 A JP 60240472A JP 24047285 A JP24047285 A JP 24047285A JP H0223188 B2 JPH0223188 B2 JP H0223188B2
- Authority
- JP
- Japan
- Prior art keywords
- iron
- gallic acid
- deodorizing
- weight
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 claims description 41
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 28
- 230000001877 deodorizing effect Effects 0.000 claims description 23
- 229940074391 gallic acid Drugs 0.000 claims description 20
- 235000004515 gallic acid Nutrition 0.000 claims description 20
- 239000000126 substance Substances 0.000 claims description 20
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- 229910052742 iron Inorganic materials 0.000 claims description 14
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical class [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 3
- PMVSDNDAUGGCCE-TYYBGVCCSA-L Ferrous fumarate Chemical compound [Fe+2].[O-]C(=O)\C=C\C([O-])=O PMVSDNDAUGGCCE-TYYBGVCCSA-L 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 150000008064 anhydrides Chemical class 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 15
- 238000000034 method Methods 0.000 description 11
- 229910021529 ammonia Inorganic materials 0.000 description 7
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid group Chemical group C(CC(O)(C(=O)O)CC(=O)O)(=O)O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 6
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 229960002089 ferrous chloride Drugs 0.000 description 4
- 239000011790 ferrous sulphate Substances 0.000 description 4
- 235000003891 ferrous sulphate Nutrition 0.000 description 4
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 description 3
- 229960005070 ascorbic acid Drugs 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 235000019645 odor Nutrition 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 2
- 239000002211 L-ascorbic acid Substances 0.000 description 2
- 235000000069 L-ascorbic acid Nutrition 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- -1 ferric chloride Chemical class 0.000 description 2
- 239000003205 fragrance Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- 230000000873 masking effect Effects 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 239000002304 perfume Substances 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- 241000205585 Aquilegia canadensis Species 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 235000010323 ascorbic acid Nutrition 0.000 description 1
- 239000011668 ascorbic acid Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Description
〔産業上の利用分野〕
本発明は、例えばトイレ、ゴミ箱、冷蔵庫等に
おけるアンモニア臭気、その他の悪臭の除去に優
れた効果を発揮する脱臭剤に関するものである。
〔従来技術とその問題点〕
例えば、トイレ等における消臭あるいは脱臭を
行なう手段として、香料でマスキングする方
法、悪臭の活性炭、シリカゲル又はゼオライト
等の吸着剤で吸着除去する方法、悪臭物質は酸
又はアルカリと反応するものが多いことに注目し
て、悪臭物質を酸又はアルカリで中和する方法、
悪臭物質をクエン酸又はマレイン酸を主成分と
した物質と化学的に反応させて除去する方法等が
提案されている。
しかし、上記手段のうち、の香料でマスキン
グする方法は、悪臭物質を基本的に除去するもの
ではないから、そして香料の香を利用しているに
すぎないものであるから異種の臭いが残つてお
り、かつ香料の香に耐えられないアレルギー性の
者も多いことから望ましいものとは言えず、又、
の活性炭等による吸着除去方法は、これら吸着
物質の吸着量が低いことから、短期間のうちに吸
着力は低下し、この為吸着物質をたびたび取り替
えなければならないので面倒である等の欠点があ
り、又、の酸又はアルカリで中和する方法は、
除去できる物質が限られており、この為脱臭剤と
しての用途に限界があり、又、のクエン酸やマ
レイン酸を用いる方法は、悪臭成分のうちアンモ
ニアやアミン類には比較的有効なるものの、メル
カプタン類の除去には有効でないといつた欠点が
ある。
そこで、このような手段に代るものとして、L
−アスコルビン酸と、硫酸第一鉄、塩化第一鉄及
び硝酸第一鉄の中から選ばれた少なくとも一種の
鉄()化合物とを含有する脱臭剤が提案(特開
昭59−132937号)されている。
この脱臭剤は、確かに望ましい特性を有してい
るものの、これで充分なものでもなく、さらなる
ものが求められている。
〔発明の開示〕
本発明者は、前記の問題点に鑑み、種々の脱臭
剤についての脱臭効果を研究していくうちに、脱
臭剤の一つの成分として没食子酸を用い、又、他
の成分として、例えば硫酸第一鉄、硝酸第一鉄又
は塩化第一鉄等の第一鉄塩又は塩化第二鉄等の第
二鉄塩といつた鉄系物質とを用いたこれらの混合
物を含むものは、極めて優れた脱臭効果を呈する
ことを見い出した。
尚、FeSO4・H2Oのような水和物の物より
FeSO4のような無水物の形の鉄系物質を用いた方
が脱臭効果は大きなものであることも見い出し
た。すなわち、脱臭剤の一つの成分として鉄系物
質を用いる場合にあつては、例えば乾燥等の手段
により出来るだけH2Oを除去していた方が望ま
しかつたのである。
又、例えば塩化第一鉄のような第一鉄塩と塩化
第二鉄のような第二鉄塩とを比べると、鉄系物質
として塩化第一鉄のような第一鉄塩を用い、これ
らの鉄系物質と没食子酸とを混合した脱臭剤の方
が脱臭効果は優れていることも見い出した。
又、上記のような鉄系物質と没食子酸との混合
割合は、鉄系物質95〜70重量%に対して没食子酸
が約5〜30重量%の割合であることが極めて望ま
しい脱臭効果を呈することも見い出した。
又、本発明になる脱臭剤は、没食子酸と鉄系物
質とを混合するのみの極めて簡単な方法で製造で
きるから、極めて低コストで提供できるものであ
る。
尚、本発明になる脱臭剤は、粉状ないしは粒状
といつたような固体状で、又は溶剤に溶かした液
状といつた形態で使用でき、あるいはセラミツ
ク、紙又は布等に含浸させて形態でも使用でき
る。
そして、特筆すべきことは、驚くべきことに、
没食子酸と鉄との反応生成物である没食子酸鉄を
主成分とする脱臭剤よりも、本発明の如く、反応
物ではなく、没食子酸と鉄系物質との混合物から
なるものの方が脱臭効果に優れていたことであ
る。
〔実施例 1〕
例えば、約10〜30メツシユの粒状のFeSO4・
H2O90重量%と約30メツシユの粉状の没食子酸
10重量%とを充分に混合分散させて、本発明にな
る脱臭剤を得る。
尚、この脱臭剤は、FeSO4・H2Oと没食子酸と
の混合物にすぎず、反応したものではない。
〔実施例 2〕
例えば、約50〜70メツシユの粉状のFeSO4・
H2O90重量%と約30メツシユの粉状の没食子酸
10重量%とを充分に混合分散させて、本発明にな
る脱臭剤を得る。
〔実施例 3〕
例えば、約90〜110メツシユの粉状のFeSO490
重量%と約30メツシユの粉状の没食子酸10重量%
とを充分に混合分散させて、本発明になる脱臭剤
を得る。
〔実施例 4〕
例えば、約90〜110メツシユの粉状にFeSO470
重量%と約30メツシユの粉状の没食子酸10重量%
と約60〜80メツシユの粉状の活性炭20重量%とを
充分に混合分散させて、本発明になる脱臭剤を得
る。
〔比較例 1〜4〕
実施例1〜4で用いた没食子酸の代りにL−ア
スコルビン酸を用いて同様に行ない、脱臭剤を得
る。
〔比較例 5〕
実施例1において、FeSO4・H2Oを用いず、30
メツシユの粉状の没食子酸のみからなる脱臭剤を
用意する。
〔比較例 6〕
実施例1において、没食子酸を用いず、
FeSO4・H2Oのみからなるものを用意する。
〔特性〕
所定の濃度のアンモニア水を入れたガラス蒸発
皿をデシケーターの下部に置き、通し板を境に上
記実施例1〜4及び比較例1〜6の脱臭剤を上部
にそれぞれ置き、そしてデシケーターを密封して
所定時間放置し、その後各ガラス蒸発皿のアンモ
ニア水の濃度を滴定用硫酸で滴定、定量し、次式
に基ずいてアンモニア吸収率を算出したので、そ
の結果を表1に示す。
アンモニア吸収率(%)=100−100残存アンモニア濃
度/脱臭剤吸収前のアンモニア濃度
[Industrial Application Field] The present invention relates to a deodorizing agent that is highly effective in removing ammonia odor and other bad odors, for example in toilets, trash cans, refrigerators, and the like. [Prior art and its problems] For example, as a means of deodorizing or deodorizing a toilet, etc., there is a method of masking with fragrance, a method of adsorbing and removing malodorous substances with an adsorbent such as activated carbon, silica gel, or zeolite, and a method of removing malodorous substances with acid or A method of neutralizing malodorous substances with acids or alkalis, noting that many substances react with alkalis;
Methods have been proposed for removing malodorous substances by chemically reacting them with a substance whose main component is citric acid or maleic acid. However, among the above methods, the method of masking with perfume does not basically remove malodorous substances, and it only uses the scent of the perfume, so different odors may remain. It is not desirable because there are many people with allergies who cannot tolerate the scent of fragrances.
The adsorption removal method using activated carbon, etc. has disadvantages such as the adsorption power decreases in a short period of time due to the low adsorption amount of these adsorbed substances, and therefore the adsorbed substances have to be replaced frequently, which is cumbersome. Also, the method of neutralizing with acid or alkali is as follows:
There are a limited number of substances that can be removed, which limits its use as a deodorizing agent.Also, methods using citric acid and maleic acid are relatively effective against ammonia and amines among malodorous components; It has the disadvantage that it is not effective in removing mercaptans. Therefore, as an alternative to such means, L
- A deodorizing agent containing ascorbic acid and at least one iron compound selected from ferrous sulfate, ferrous chloride, and ferrous nitrate has been proposed (Japanese Patent Application Laid-Open No. 132937/1982). ing. While this deodorizer does have desirable properties, these are not sufficient and more is needed. [Disclosure of the Invention] In view of the above problems, while researching the deodorizing effects of various deodorizing agents, the present inventor used gallic acid as one component of the deodorizing agent, and found that other components For example, ferrous salts such as ferrous sulfate, ferrous nitrate or ferrous chloride, or ferric salts such as ferric chloride, and mixtures thereof with iron-based substances. It has been found that it exhibits an extremely excellent deodorizing effect. In addition, compared to hydrates such as FeSO 4 H 2 O
It was also found that the use of an anhydrous iron-based material such as FeSO 4 has a greater deodorizing effect. That is, when an iron-based substance is used as a component of a deodorizing agent, it is desirable to remove as much H 2 O as possible, for example, by drying or the like. Also, when comparing ferrous salts such as ferrous chloride and ferric salts such as ferric chloride, it is found that using ferrous salts such as ferrous chloride as the iron-based substance, these It has also been found that a deodorizing agent containing a mixture of iron-based substances and gallic acid has a better deodorizing effect. Further, as for the mixing ratio of the iron-based substance and gallic acid as described above, it is preferable that the ratio of gallic acid to 95-70% by weight of the iron-based substance be about 5-30% by weight, which exhibits an extremely desirable deodorizing effect. I also discovered that. Further, the deodorizing agent of the present invention can be produced by an extremely simple method of simply mixing gallic acid and an iron-based substance, and therefore can be provided at extremely low cost. The deodorizing agent of the present invention can be used in a solid form such as powder or granules, or in a liquid form dissolved in a solvent, or by impregnating ceramic, paper, cloth, etc. Can be used. And what is noteworthy is that, surprisingly,
Compared to deodorizers whose main ingredient is iron gallate, which is a reaction product between gallic acid and iron, a deodorizer made of a mixture of gallic acid and an iron-based substance rather than a reactant, as in the present invention, has a better deodorizing effect. It was excellent. [Example 1] For example, about 10 to 30 meshes of granular FeSO4 .
90% by weight of H2O and about 30 mesh powdered gallic acid
10% by weight and sufficiently mixed and dispersed to obtain the deodorizing agent of the present invention. Note that this deodorizer is only a mixture of FeSO 4 .H 2 O and gallic acid, and is not a reaction product. [Example 2] For example, about 50 to 70 meshes of powdered FeSO4 .
90% by weight of H2O and about 30 mesh powdered gallic acid
10% by weight and sufficiently mixed and dispersed to obtain the deodorizing agent of the present invention. [Example 3] For example, about 90 to 110 meshes of powdered FeSO 4 90
10% by weight and approximately 30% by weight of powdered gallic acid
The deodorizing agent of the present invention is obtained by sufficiently mixing and dispersing the ingredients. [Example 4] For example, about 90 to 110 meshes of FeSO 4 70
10% by weight and approximately 30% by weight of powdered gallic acid
The deodorizing agent of the present invention is obtained by thoroughly mixing and dispersing 20% by weight of powdered activated carbon of about 60 to 80 mesh. [Comparative Examples 1 to 4] Deodorizers were obtained in the same manner as in Examples 1 to 4 using L-ascorbic acid instead of gallic acid. [Comparative Example 5] In Example 1, FeSO 4 H 2 O was not used, and 30
Prepare a deodorizer made only of powdered gallic acid from honeysuckle. [Comparative Example 6] In Example 1, without using gallic acid,
Prepare one consisting only of FeSO 4 H 2 O. [Characteristics] A glass evaporating dish containing aqueous ammonia at a predetermined concentration was placed at the bottom of the desiccator, and the deodorizers of Examples 1 to 4 and Comparative Examples 1 to 6 were placed at the top with the passage plate as the border, and the desiccator was placed. The ammonia water concentration in each glass evaporating dish was titrated and determined using sulfuric acid for titration, and the ammonia absorption rate was calculated based on the following formula. The results are shown in Table 1. . Ammonia absorption rate (%) = 100-100 Residual ammonia concentration / Ammonia concentration before absorbing deodorizer
【表】【table】
【表】
又、上記テストにおけるアンモニア水の代りに
新鮮なカマボコ及び白子を用い、そして脱臭剤と
して実施例4及び比較例4を用いた場合及び脱臭
剤ナシの場合についての経時変化を調べたので、
その結果を表2に示す。[Table] In addition, we used fresh kamaboko and milt instead of ammonia water in the above test, and investigated changes over time when Example 4 and Comparative Example 4 were used as deodorizers, and when no deodorant was used. ,
The results are shown in Table 2.
【表】
上記表1,2におけるアンモニア吸収率及び白
子並びにカマボコを用いての悪臭吸収についての
テストからわかるように、本発明になる脱臭剤の
脱臭効果「はL−アスコルビン酸と硫酸第一鉄と
の混合物、没食子酸のみ、硫酸第一鉄及び没食子
酸と鉄との反応生成物よりなる」脱臭剤よりも優
れた効果を示している。[Table] As can be seen from the ammonia absorption rate and malodor absorption tests using Milt and Kamaboko in Tables 1 and 2 above, the deodorizing effect of the deodorizer of the present invention is determined by L-ascorbic acid and ferrous sulfate. It shows better effectiveness than the deodorizers consisting of mixtures with gallic acid, gallic acid alone, ferrous sulfate, and reaction products of gallic acid and iron.
Claims (1)
少なくとも一種の鉄系物質と、没食子酸との混合
物からなることを特徴とする脱臭剤。 2 特許請求の範囲第1項記載の脱臭剤におい
て、没食子酸と鉄系物質との混合割合が重量比で
約5〜30対95〜70であるもの。 3 特許請求の範囲第1項又は第2項記載の脱臭
剤において、鉄系物質が無水物の形であるもの。[Claims] 1. A deodorizing agent comprising a mixture of gallic acid and at least one iron-based substance selected from the group of ferrous salts and ferric salts. 2. The deodorizer according to claim 1, wherein the mixing ratio of gallic acid and iron-based material is about 5 to 30 to 95 to 70 by weight. 3. The deodorizer according to claim 1 or 2, in which the iron-based substance is in the form of an anhydride.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60240472A JPS62101250A (en) | 1985-10-29 | 1985-10-29 | Deodorant |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60240472A JPS62101250A (en) | 1985-10-29 | 1985-10-29 | Deodorant |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62101250A JPS62101250A (en) | 1987-05-11 |
JPH0223188B2 true JPH0223188B2 (en) | 1990-05-23 |
Family
ID=17060021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60240472A Granted JPS62101250A (en) | 1985-10-29 | 1985-10-29 | Deodorant |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62101250A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03293032A (en) * | 1990-02-10 | 1991-12-24 | Nippon Steel Corp | Composition having air cleanability and its production |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS548725A (en) * | 1977-06-15 | 1979-01-23 | Osaka Prefecture | Deodorizing agent |
JPS5685349A (en) * | 1979-12-15 | 1981-07-11 | Sanko Sangyo Kk | Deodorizer and its manufacture |
JPS58104634A (en) * | 1981-12-17 | 1983-06-22 | Teruko Iwase | Adsorbent |
JPS60145148A (en) * | 1984-01-09 | 1985-07-31 | 松下電工株式会社 | Deodorant |
-
1985
- 1985-10-29 JP JP60240472A patent/JPS62101250A/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS548725A (en) * | 1977-06-15 | 1979-01-23 | Osaka Prefecture | Deodorizing agent |
JPS5685349A (en) * | 1979-12-15 | 1981-07-11 | Sanko Sangyo Kk | Deodorizer and its manufacture |
JPS58104634A (en) * | 1981-12-17 | 1983-06-22 | Teruko Iwase | Adsorbent |
JPS60145148A (en) * | 1984-01-09 | 1985-07-31 | 松下電工株式会社 | Deodorant |
Also Published As
Publication number | Publication date |
---|---|
JPS62101250A (en) | 1987-05-11 |
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