WO2008001834A1 - Indicateur de gaz oxydant de type stratifié et procédé de détection de gaz oxydant - Google Patents

Indicateur de gaz oxydant de type stratifié et procédé de détection de gaz oxydant Download PDF

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Publication number
WO2008001834A1
WO2008001834A1 PCT/JP2007/062966 JP2007062966W WO2008001834A1 WO 2008001834 A1 WO2008001834 A1 WO 2008001834A1 JP 2007062966 W JP2007062966 W JP 2007062966W WO 2008001834 A1 WO2008001834 A1 WO 2008001834A1
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WIPO (PCT)
Prior art keywords
oxidizing gas
sheet
color
laminate
indicator
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Application number
PCT/JP2007/062966
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English (en)
Japanese (ja)
Inventor
Chizuko Kakimoto
Hiroshi Inoue
Ryuichi Kiyoe
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Sakura Color Products Corporation
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Filing date
Publication date
Application filed by Sakura Color Products Corporation filed Critical Sakura Color Products Corporation
Publication of WO2008001834A1 publication Critical patent/WO2008001834A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
    • G01N31/223—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for investigating presence of specific gases or aerosols
    • G01N31/224—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for investigating presence of specific gases or aerosols for investigating presence of dangerous gases
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G01N21/783—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour for analysing gases

Definitions

  • the present invention relates to a novel laminate type oxidizing gas indicator and oxidizing gas detection method.
  • Detection of oxidizing gas including ozone gas is used in various fields.
  • an object to be processed is sterilized with an oxidizing gas (for example, ozone gas)
  • an oxidizing gas for example, ozone gas
  • a gas detection indicator as a method for confirming whether the object to be processed has been sterilized. That is, it is possible to confirm that the object to be treated has been exposed to the oxidizing gas by providing a gas detection indicator on the object to be treated or the sterilization apparatus and examining the discoloration state.
  • the gas indicator main body is formed in a substantially plate shape, and a passage for introducing a specific gas to be detected is formed therein, and an indicator layer that changes color by reacting with the specific gas along the passage is formed on the inner wall of the passage.
  • a high-sensitivity gas indicator, etc. characterized in that an opening of a predetermined area where a specific gas can be immediately brought into contact with the indicator body and an indicator layer is provided in the opening is known.
  • a gas detection device in which a color-changing gas detection material is loaded in a container, which has a gas passage space from the opening to the bottom of the container and has a container cross-sectional area parallel to the opening.
  • a gas detector having a container shape that gradually decreases from the opening to the bottom is known (Patent Document 3).
  • Patent Document 1 JP-A-8-122318
  • Patent Document 2 Japanese Patent Laid-Open No. 7-49342
  • Patent Document 3 Japanese Patent Laid-Open No. 2000-303617
  • the device is relatively large, and further downsizing and thinning are necessary.
  • conventional products must be carefully managed and stored so that they do not change color before use, and there is room for improvement in this regard.
  • a main object of the present invention is to provide an oxidizing gas indicator that is thin and can be managed before use.
  • the present invention relates to the following laminate-type oxidizing gas indicator and oxidizing gas detection method.
  • a laminate comprising a color-changing sheet and a transparent sheet
  • the color-changing sheet is a sheet in which a color-changing layer that changes color by contact with an oxidizing gas is formed on part or all of the fibrous base material.
  • a laminate-type oxidizing gas indicator characterized by that.
  • the discoloration layer is formed of an ink composition containing at least one of anthraquinone dyes, azo dyes, oxazine dyes, thiazine dyes, methine dyes and triarylmethane dyes.
  • Laminated oxidizing gas indicator as described in 1.
  • Ink composition strength The laminate-type oxidizing gas indicator according to Item 5, further comprising at least one of a surfactant, a filler, and a binder.
  • the laminate type oxidizing gas indicator of the present invention it is possible to provide a small and thin indicator because the laminated body strength of the color changing sheet and the transparent sheet is constituted.
  • a thin indicator that has never existed before, with a thickness of 3 mm or less (especially 0.5-2 mm).
  • the discolorable sheet is sealed with a transparent sheet before use. Therefore, it can be stored easily and reliably. Unlike conventional indicators, it does not change color during storage.
  • the indicator of the present invention can be used to detect various concentrations of oxidizing gas by adjusting the degree of adhesion between the color changing sheet and the transparent sheet, the size of the gap, and the like. it can. Especially 100 ⁇ :! OOOppm is also useful for detecting oxidizing gas at high concentration.
  • the CT value can be detected in a relatively large region, usually 10,000 to 300,000 ppm'min.
  • the passage of the oxidizing gas is performed by interposing a spacer between the discoloration layer and the transparent sheet (in some cases, the spacer intervened during manufacture is removed during use). Can be formed. As a result, the oxidizing gas can be circulated more reliably to the back of the indicator. As a result, it is possible to increase the discoloration width and increase the sensitivity at any time.
  • the laminated oxidizing gas indicator 1 of the present invention can be widely used for applications in the medical field, food field, precision instrument field, life hygiene field, electrical appliance field, and the like. Brief Description of Drawings
  • FIG. 1 shows a plan view of a laminate type indicator produced in an example.
  • FIG. 2 A cross-sectional view of the laminate type indicator produced in the example is shown.
  • FIG. 3 shows another embodiment (plan view) of the laminate type indicator of the present invention.
  • FIG. 4 A cross-sectional view of a laminate-type indicator in which a spacer is arranged.
  • FIG. 5 shows a state in which an oxidizing gas passage is formed by the spacer, the color changing layer and the transparent sheet.
  • Figure 6 Shows a plan view of a laminated indicator with spacers.
  • FIG. 7 shows an embodiment (plan view) of a disk-shaped laminated indicator of the present invention.
  • a laminate type oxidizing gas indicator according to the present invention is a laminate including a color changing sheet and a transparent sheet,
  • the color-changing sheet is a sheet in which a color-changing layer that changes color by contact with an oxidizing gas is formed on part or all of the fibrous base material.
  • Fig. 1 shows a plan view of an example of the indicator of the present invention.
  • Fig. 2 shows the ⁇ _ ⁇ 'cross section.
  • the color-changing sheet 1 is stacked in a state of being sandwiched between the transparent sheets 2 and 2. That is, the transparent sheet has an area larger than that of the color-changing sheet, and the transparent sheets (adhesion margins) are laminated and adhered in the peripheral area of the color-changing sheet.
  • the boundary line 3 between the transparent sheets may be integrally formed by force, heat fusion, or the like.
  • the present invention is not limited to the structure of FIG. 1 as long as it has the features (1) to (3) above.
  • a disk-shaped discoloration sheet (not shown) may be sandwiched between two disk-shaped transparent sheets 2.
  • the discoloration layer can be exposed to oxidizing gas by opening a hole penetrating to the discoloration layer in the X part.
  • the color changes from X to concentric circles.
  • the color changing sheet and the transparent sheet may be in close contact (adhesion) or may not be in close contact. Further, there may be a gap between the color changing sheet and the transparent sheet, or there may be no gap.
  • a transparent sheet or other resin sheet processed into a rod shape or a strip shape, a wood material or the like that is formed into a rod shape, or the like may be interposed as a spacer.
  • the passage of the oxidizing gas can be formed by interposing the spacer.
  • Fig. 4 shows a cross-sectional view when the spacer is placed. In FIG. 4, the spacer 4 is disposed on the discoloration layer 3. At this time, as shown in FIG.
  • the passage 5 can be formed efficiently.
  • a spacer it is preferable that a spacer is disposed in the length direction of the color changing layer, particularly between the color changing layer and the transparent sheet.
  • the spacer 4 is designed to have almost the same length as the length of the discoloration layer 3.
  • the spacer When using the indicator of the present invention, the spacer may be used with the spacer attached or may be used after the spacer is removed. If the spacer is removed, a larger passage can be formed. The spacer can be removed by pulling out the cross section of the discolorable sheet in an oxidizing gas atmosphere by cutting off the end of the laminating type oxidizing gas indicator during use.
  • the distance between the two is usually 1 mm or less (particularly 0 to 1 mm).
  • the presence or absence of adhesion between the color-changing sheet and the transparent sheet can be determined appropriately depending on the concentration of oxidizing gas to be detected, CT value (oxidizing gas concentration X oxidizing gas exposure time), and the like. If adhesion is required, a heat-sealable transparent sheet or the like may be used.
  • the transparent sheet (film) is not limited as long as it is transparent and can be laminated.
  • transparent resins such as vinyl chloride resin, polyethylene terephthalate (PET), and acrylic resin can be suitably used.
  • the color-changing sheet is a sheet in which a color-changing layer that changes color with an oxidizing gas is formed on a fibrous base material.
  • the fibrous base material is not particularly limited as long as it can support the discoloration layer, and examples thereof include papers (kent paper, plain paper, drawing paper, Japanese paper, fine paper, etc.), non-woven fabric, and woven fabric.
  • the discoloration layer is not limited as long as it can be discolored (including decoloring, fading, etc.) by contact with an oxidizing gas, but anthraquinone dyes, azo dyes, It is preferably formed of an ink composition containing at least one kind (a color changing dye) of an oxazine dye, a thiazine dye, a methine dye, and a triarylmethane dye.
  • the anthraquinone dye has an anthraquinone as a basic skeleton, a primary amino group and a secondary amino group. As long as it has at least one amino group of the group, it is not particularly limited, and known anthraquinone disperse dyes and the like can also be used.
  • the amino group may have two or more, and these may be the same or different from each other.
  • Such anthraquinone dyes include, for example, 1,4-diaminoanthraquinone (Ce Disperse Violet 1), 1-amino-4-hydroxy-1-2-methoxyanthraquinone (C ⁇ Disperse Red 4), 1-amino-4- Methylaminoanthraquinone (C ⁇ Di sperse Violet 4), 1,4-Diamino_2 Methoxyanthraquinone (C ⁇ Disperse Red 11), 1-amino 2-methylanthraquinone (C ⁇ DisperseOrange 11), 1-amino 4- Hydroxyantraquinone (C ⁇ Disperse Redl5), 1,4,5,8-tetraaminoanthraquinone (C ⁇ Disperse Blue 1), 1,4-diamino-5_nitroanthraquinone (C ⁇ Disperse Violet 8), etc.
  • Ce Disperse Violet 1 1,4-diaminoanthra
  • the detection sensitivity of ozone can be controlled by changing the type (molecular structure, etc.) of these anthraquinone dyes.
  • monoazo dyes, polyazo dyes, metal complex azo dyes, stilbenazo dyes, thiazole azo dyes and the like can be mentioned. More specifically, the dye numbers are CIDisper se Red 13, C.LDisperse Red 52, C.LDisperse Violet 24, C.LDisperse Blue, 44, CI Disperse Red 58, C.LDisperse Red 88, C.LDisperse Yellow 23, C.LDisperse Orange 1, C.LDisperse Orange 5, CISolvent Red 1, CISolvent Red 3, CISolvent Red 23, and the like. These can be used alone or in combination of two or more.
  • a methine dye a dye having a methine group is acceptable. Therefore, in the present invention, polymethine dyes, cyanine dyes and the like are also included in the methine dyes. They are, Known or commercially available methine dye power can be appropriately employed.
  • CIBasic Red 12 CIBasic Red 13, CIBasic Red 14, CIBasic Red 15, CIBasic Red 27, CIBasic Red 35, CIBasic Red 36, CIBasic Red 37, CIBasic Red 45, CIBasic Red 48, CIBasic Yellow 11, CIBasic Yellow 12, CIBasic Yellow 13, CIBasic Yellow 14, CIBasic Yellow 21, CIBasic Yellow 22, CIBasic Yellow 23, CIBasic Yellow 24, CIBasic Violet 7, CIBasic Violet 15, CIBasic Violet 16, CIBasic Violet 20, CIBasic Violet 21, CIBasic Violet 39, CIBasic Blue 62, CIBasic Blue 63 and the like. These can be used alone or in combination of two or more.
  • Triarylmethane dyes are not limited, and known or commercially available dyes can be used.
  • C ⁇ Solvent Violet 8 C.I.Basic Green 1, C.I.Basic Red 9, C.I.Basic Blue 1 and the like can be suitably used.
  • the thiazine-based dye can be selected from known or commercially available ones without particular limitation.
  • C.I.Basic Blue 25, C.I.Basic Blue 25, C.I.Basic Blue 24, C.I.Basic Blue 17, C.I.Basic Green 5, C ⁇ Solvent Blue 8, and the like can be mentioned.
  • These can be used alone or in combination of two or more.
  • C.I.Basic Blue 9 and the like can be suitably used.
  • the oxazine-based dye is not particularly limited as long as it has at least one oxazine ring represented by the following formulas (I;) to (III).
  • a monooxazine dye having one oxazine ring and a dioxazine dye having two oxazine rings are also included.
  • any of a basic dye having at least one substituted or unsubstituted amino group as an auxiliary color group, a chromium mordant dye further having an OH group, a COOH group or the like as a substituent, etc. can be used.
  • oxazine dyes can be used alone or in combination of two or more. These may be known or commercially available. In terms of dye numbers, I. Basic Blue 3, I. Basic Blue 12, I. Basic Blue 6, I. Basic Blue 10, I. Basic Blue 96 and other oxazine dyes It is desirable to use it. In addition, C ⁇ Basic Blue 3 etc. is more desirable.
  • the content of these color-changing dyes is not limited, but in general, it is preferably about 0.:! To 10% by weight, particularly 1 to 5% by weight in the ink composition. .
  • the ink composition further contains a quaternary ammonium salt type cationic surfactant as required.
  • the quaternary ammonium salt type cationic surfactant (hereinafter, also simply referred to as "cationic surfactant”) is not particularly limited, and usually an alkyl ammonium salt can be used. A commercially available product can also be used. These may be used alone or in combination of two or more. In the present invention, by using these cationic surfactants in combination with the anthraquinone dyes, better ozone detection sensitivity can be obtained.
  • alkyltrimethylammonium salts and dialkyldimethylammonium salts are preferred. Specifically, coconut alkyltrimethylammonium chloride, beef tallow alkyltrimethylammonium chloride, benenyltrimethylan chloride And ammonium hexadecyltrimethylammonium chloride, lauryltrimethylammonium chloride, octadecyltrimethylammonium chloride, and dioctyldimethylammonium chloride. Is preferred.
  • the content of the cationic surfactant is preferably about 0.:! To 5% by weight, particularly preferably about 0.:! To 2% by weight in the ink composition.
  • components used in known inks such as a resin-based binder, a filler, a solvent, and the like can be appropriately blended as necessary.
  • the resinous binder may be selected as appropriate according to the type of the substrate and the like.
  • known resin components used in ink compositions for writing and printing can be used as they are.
  • Specific examples include maleic resin, amide resin, ketone resin, alkylphenol resin, rosin-modified resin, polybutyral, polybutyrpyrrolidone, cellulose resin, acrylic resin, and vinyl acetate resin. it can.
  • the content of the resin binder is generally preferably in the ink composition: from about! To 35% by weight, particularly from 5 to 20% by weight.
  • the extender is not particularly limited, and examples thereof include bentonite, activated clay, aluminum oxide, silica gel and the like.
  • materials known as known extender pigments Of these, porous materials are preferred, and silica gel is more preferred. By adding such a bulking agent, detection sensitivity can be mainly increased.
  • the content of the extender is generally about 1 to 20% by weight, particularly 5 to 15% by weight in the ink composition.
  • any solvent that is usually used in ink compositions for printing, writing, etc. can be used.
  • various solvents such as alcohol-based, ester-based, ether-based, ketone-based and hydrocarbon-based solvents can be used, and may be appropriately selected according to the solubility of the dye used and the resin-based binder.
  • These components can be blended simultaneously or sequentially and mixed uniformly using a known stirrer such as a homogenizer or a resolver.
  • a known stirrer such as a homogenizer or a resolver.
  • anthraquinone A dye, a cationic surfactant, a resin binder, an extender, and the like may be blended in order and mixed and stirred.
  • the shape, formation pattern, size, and the like of the discoloration layer can be appropriately determined according to the use, purpose of use, type of target oxidizing gas, and the like.
  • a rectangle as shown in Fig. 1 can be preferably adopted. Specifically, a rectangle having a short side of 5 to 15 mm and a long side of 50 to 100 mm can be exemplified. The long side can be changed appropriately according to the CT value to be measured. By making it rectangular, as shown in Fig. 1, one end of the indicator is cut perpendicular to the long side to form an opening ( ⁇ _ ⁇ 'cross section), and oxidizing gas is supplied from the opening in the long side direction. It becomes possible to invade.
  • the formation pattern of the color changing layer it is possible to form the color changing layer on the entire surface of the fibrous base material as shown in Fig. 1, but in addition, a plurality of isolated color changing layers may be formed.
  • a plurality of discoloration layers can be formed on the fibrous base material 1 in a spot shape.
  • the discoloration layer Id may be formed from the circular discoloration layer la in the order from the opening.
  • the intervals between the color changing layers may be equal, or may be formed so that the intervals gradually become smaller or larger.
  • the oxidizing gas targeted by the laminate type oxidizing gas indicator of the present invention is not particularly limited, and is suitable for, for example, ozone gas, hydrogen peroxide gas, ethylene oxide gas, nitrogen oxide gas, sulfur oxide gas, and the like. Can be used.
  • the concentration of the oxidizing gas to be applied is generally a force of about 0.:! To 500 ppm, preferably 500 to 3000 ppm, depending on the type of oxidizing gas.
  • the range of measurable CT value (oxidizing gas concentration X exposure time) is usually preferably about 10,000 to 300,000 ppm'min.
  • the present invention is a method for detecting an oxidizing gas using the laminate type oxidizing gas indicator, wherein (1) the end of the laminated type oxidizing gas indicator is cut and the cross section of the discolorable sheet is exposed to an oxidizing gas atmosphere. And (2) a method for detecting oxidizing gas (first method), which includes the step of confirming the discoloration state of the discoloring sheet.
  • the present invention is a method for measuring a CT value by an oxidizing gas using the laminated oxidizing gas indicator, wherein (1) an end of the laminated oxidizing gas indicator (2) Discoloration Step for confirming discoloration state of sheet, (3) CT value based on relationship between prepared CT value and discoloration state
  • a method for detecting an oxidizing gas (second method) including the step of obtaining
  • the end portion of the laminate-type oxidizing gas indicator is cut to expose the cross section of the discolorable sheet in an oxidizing gas atmosphere.
  • it is possible to detect the oxidizing gas by cutting the end portion of the indicator during use so that the cross section of the color changing sheet is in contact with the oxidizing gas. For example, by cutting AA 'in Fig. 1 with a cutter knife, scissors, etc., an opening through which the oxidizing gas enters the indicator (using the right portion of Fig. 1 as the indicator) is provided.
  • an oxidizing gas can be detected.
  • an indicator placed in an oxidizing gas atmosphere when the oxidizing gas begins to penetrate through the opening force, the color gradually changes from the portion near the opening of the discoloration layer.
  • the manufacturing method of the indicator of the present invention is not particularly limited.
  • a color-changing sheet is produced by forming a color-changing layer on the fibrous base material.
  • the discoloration layer can be formed by forming a coating film from the discolorable ink composition.
  • the method of forming the coating film may be, for example, a printing method (screen printing, etc.) or a coating method by brushing, spraying, roller, or the like.
  • the discoloration layer may be formed on the entire surface of the fibrous base material, or may be formed in part. Good.
  • the laminating step lamination is performed such that the color changing sheet is sandwiched between two transparent sheets having a larger area than the color changing sheet. For example, as shown in Fig. 1, it is good if it is arranged so as to secure an area (contact area) where the transparent sheets are directly laminated.
  • the portions where the transparent sheets are laminated are adhered.
  • the bonding method is not particularly limited, and for example, a method using heat fusion, a method using an adhesive, or the like can be employed.
  • a laminated indicator as shown in Fig. 1 was produced.
  • the ingredients shown in Table 1 were mixed uniformly to prepare an ink.
  • the resulting ink was screen-printed on the entire surface of one side of Kent paper (size: about 10 mm X about 50 mm) to produce a laminate 1 in which a discoloration layer (printing layer) was formed on Kent paper.
  • This laminate was sandwiched between two OHP sheets 2 (colorless and transparent, no adhesion) (size: about 25 mm X about 65 mm) and laminated to obtain a laminate type indicator by sealing the printed sheet.
  • the thickness of the indicator obtained was 400 ⁇ m.
  • Microlith Green G—A Non-discoloring dye, manufactured by Ciba Specialty Chemical
  • John Clinole 690 made of Johnson polymer, styrene acrylic resin
  • Nitrified cotton HIG1 / 2 Daicel Chemical Industries, Nitrocellulose
  • Aerosil R_972 Silica gel, made by Nippon Aerosil
  • CT values (ozone concentration X exposure time) were measured using the indicators obtained in the examples.
  • An indicator was produced in the same manner as in Example 1 except that a resin square (2 mm ⁇ 2 mm ⁇ 50 mm) was interposed between the discoloration layer and the transparent sheet at the time of manufacturing the indicator.
  • Example 3 One indicator was produced in the same manner as in Example 1 except that a resin square (0.8 mm X O. 8 mm X 50 mm) was interposed between the discoloration layer and the transparent sheet during the production of the indicator.
  • Example 3 in which the color change rate was the fastest was the slowest in Example 1.
  • the discoloration speed can be freely controlled by changing the size of the spacer.

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Abstract

La présente invention concerne un indicateur de gaz oxydant qui est mince et peut se gérer/stocker relativement facilement avant d'être utilisé. L'indicateur de gaz oxydant est un stratifié composé d'une feuille changeant de couleur et de feuilles transparentes. Ledit indicateur se caractérise en ce que : (1) la feuille changeant de couleur et les feuilles transparentes se superposent de manière à intercaler la feuille changeant de couleur entre les feuilles transparentes ; (2) les feuilles transparentes empêchent tout contact entre la feuille changeant de couleur et l'air environnant ; (3) la feuille changeant de couleur se compose d'un substrat fibreux et, formée sur une partie ou l'intégralité de sa surface, d'une couche changeant de couleur dont la couleur change au contact d'un gaz oxydant.
PCT/JP2007/062966 2006-06-29 2007-06-28 Indicateur de gaz oxydant de type stratifié et procédé de détection de gaz oxydant WO2008001834A1 (fr)

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JP2006-180164 2006-06-29

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014126410A (ja) * 2012-12-25 2014-07-07 Sakura Color Products Corp 過酸化水素ガス検知用インキ組成物及び過酸化水素ガス検知インジケータ
JP2016033524A (ja) * 2015-12-10 2016-03-10 株式会社サクラクレパス 過酸化水素ガス検知インジケータ
JP2018004391A (ja) * 2016-06-30 2018-01-11 共同印刷株式会社 タイムインジケーター

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JP2002069344A (ja) * 2000-08-29 2002-03-08 Sakura Color Prod Corp オゾン検知用インキ及びオゾン検知カード
JP2003232792A (ja) * 1993-04-13 2003-08-22 Serex Inc フロースルーまたはディップスティック形式の免疫クロマトグラフィアッセイのための一体化したパッケージホルダ装置
JP2006047139A (ja) * 2004-08-05 2006-02-16 Sogo Kagaku Kenkyu Kiko 化学物質検出装置
JP2006078463A (ja) * 2004-03-30 2006-03-23 Sakura Color Prod Corp 酸化性ガス検知用インキ組成物及び酸化性ガス検知インジケーター
JP2006112992A (ja) * 2004-10-18 2006-04-27 Riken Keiki Co Ltd ガス検知シート

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JPS6246369U (fr) * 1985-09-06 1987-03-20
JP2003232792A (ja) * 1993-04-13 2003-08-22 Serex Inc フロースルーまたはディップスティック形式の免疫クロマトグラフィアッセイのための一体化したパッケージホルダ装置
JPH0749342A (ja) * 1993-08-06 1995-02-21 Ishikawajima Harima Heavy Ind Co Ltd ガス暴露指示紙
JP2002069344A (ja) * 2000-08-29 2002-03-08 Sakura Color Prod Corp オゾン検知用インキ及びオゾン検知カード
JP2006078463A (ja) * 2004-03-30 2006-03-23 Sakura Color Prod Corp 酸化性ガス検知用インキ組成物及び酸化性ガス検知インジケーター
JP2006047139A (ja) * 2004-08-05 2006-02-16 Sogo Kagaku Kenkyu Kiko 化学物質検出装置
JP2006112992A (ja) * 2004-10-18 2006-04-27 Riken Keiki Co Ltd ガス検知シート

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JP2014126410A (ja) * 2012-12-25 2014-07-07 Sakura Color Products Corp 過酸化水素ガス検知用インキ組成物及び過酸化水素ガス検知インジケータ
JP2016033524A (ja) * 2015-12-10 2016-03-10 株式会社サクラクレパス 過酸化水素ガス検知インジケータ
JP2018004391A (ja) * 2016-06-30 2018-01-11 共同印刷株式会社 タイムインジケーター

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