JP2002531855A - Inspection method for the degree of hydrophilicity of solid surfaces using infrared spectroscopy - Google Patents
Inspection method for the degree of hydrophilicity of solid surfaces using infrared spectroscopyInfo
- Publication number
- JP2002531855A JP2002531855A JP2000587148A JP2000587148A JP2002531855A JP 2002531855 A JP2002531855 A JP 2002531855A JP 2000587148 A JP2000587148 A JP 2000587148A JP 2000587148 A JP2000587148 A JP 2000587148A JP 2002531855 A JP2002531855 A JP 2002531855A
- Authority
- JP
- Japan
- Prior art keywords
- intensity
- hydrophilicity
- measured
- infrared light
- reflected infrared
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 66
- 239000007787 solid Substances 0.000 title claims abstract description 7
- 238000007689 inspection Methods 0.000 title claims description 6
- 238000004566 IR spectroscopy Methods 0.000 title 1
- 238000004140 cleaning Methods 0.000 claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 229920003023 plastic Polymers 0.000 claims abstract description 6
- 239000004033 plastic Substances 0.000 claims abstract description 6
- 238000005259 measurement Methods 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 16
- 238000012360 testing method Methods 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 6
- 229910019142 PO4 Inorganic materials 0.000 claims description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 4
- 239000010452 phosphate Substances 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000003921 oil Substances 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000003981 vehicle Substances 0.000 description 6
- 238000000275 quality assurance Methods 0.000 description 5
- 230000002209 hydrophobic effect Effects 0.000 description 4
- 235000021317 phosphate Nutrition 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 238000000641 cold extrusion Methods 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004851 dishwashing Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000005660 hydrophilic surface Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 229940056932 lead sulfide Drugs 0.000 description 1
- 229910052981 lead sulfide Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010731 rolling oil Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229910001428 transition metal ion Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
- G01J3/433—Modulation spectrometry; Derivative spectrometry
-
- 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3563—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solids; Preparation of samples therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
- B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
- B01D67/0032—Organic membrane manufacture by inducing porosity into non porous precursor membranes by elimination of segments of the precursor, e.g. nucleation-track membranes, lithography or laser methods
- B01D67/0034—Organic membrane manufacture by inducing porosity into non porous precursor membranes by elimination of segments of the precursor, e.g. nucleation-track membranes, lithography or laser methods by micromachining techniques, e.g. using masking and etching steps, photolithography
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/10—Arrangements of light sources specially adapted for spectrometry or colorimetry
- G01J3/108—Arrangements of light sources specially adapted for spectrometry or colorimetry for measurement in the infrared range
-
- 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3577—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing liquids, e.g. polluted water
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
- G01J3/433—Modulation spectrometry; Derivative spectrometry
- G01J2003/4332—Modulation spectrometry; Derivative spectrometry frequency-modulated
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Pathology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Optics & Photonics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Engineering & Computer Science (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
(57)【要約】 親水性化処理を施した固体表面の親水性度をチェックする方法を提供する。測定する表面を水でぬらし、これに赤外線を照射する。表面で反射した一の特定の波長の、あるいは複数の特定の波長の反射赤外線の強度を測定し、水による表面の平均被覆割合を測定する。この方法を用いると、洗浄プロセスやプラスチックの洗浄処理の自動チェックが可能になる。洗浄結果が不十分な場合には、自動的に、警報を発生させあるいは工程の確認を開始させる。 (57) [Summary] Provided is a method for checking the degree of hydrophilicity of a solid surface subjected to a hydrophilic treatment. The surface to be measured is wetted with water and irradiated with infrared light. The intensity of reflected infrared light of one specific wavelength or a plurality of specific wavelengths reflected on the surface is measured, and the average coverage of the surface with water is measured. With this method, it is possible to automatically check the cleaning process and the plastic cleaning process. If the cleaning result is insufficient, an alarm is automatically generated or a process check is started.
Description
【発明の詳細な説明】 技術分野 本発明は表面の一箇所又は複数箇所の親水性を、好ましくは自動的に決定する
方法に関する。表面の水とのぬれ性は、この方法を一箇所又は複数箇所行なうこ
とにより決める事ができる。この方法を用いると例えば水性ラッカーを塗装する
前のプラスチックの表面に行なった親水化処理の成果を点検する事ができる。ま
た固体の表面から油脂等の疎水性の不純物を除去するために行なった洗浄の成果
を点検する事ができる。即ち洗浄後に表面の水の平均被覆割合が大きい程、疎水
性の不純物は表面からより十分に除去された事となる。即ち製造工程における金
属、プラスチック、ガラス、セラミックス等の部材の洗浄の成果の点検が可能と
なる。Description: TECHNICAL FIELD The present invention relates to a method for determining, preferably automatically, the hydrophilicity of one or more points on a surface. The wettability of the surface with water can be determined by performing this method at one or more locations. By using this method, for example, it is possible to check the results of the hydrophilization treatment performed on the surface of the plastic before applying the aqueous lacquer. In addition, the result of cleaning performed to remove hydrophobic impurities such as oils and fats from the surface of the solid can be checked. In other words, the higher the average coverage of water on the surface after cleaning, the more the hydrophobic impurities have been removed from the surface. That is, it is possible to check the results of cleaning of members such as metal, plastic, glass, and ceramics in the manufacturing process.
また連続洗浄ユニットにおける食器や皿等の洗浄の成果のチェックにも適して
いる。It is also suitable for checking the results of washing dishes and dishes in a continuous washing unit.
本発明は、工業生産における、固体表面の洗浄に用いることができる。即ち表
面が防錆油や、圧延、成形、引抜、押出、切削等に用いる加工油で覆われた金属
表面に用いる事ができる。即ち後の工程で更に化成処理や皮膜処理等を行なうた
めに表面からこれ等の油を除去する際に用いる事ができる。The present invention can be used for cleaning a solid surface in industrial production. That is, it can be used for a metal surface whose surface is covered with rust-preventive oil or processing oil used for rolling, molding, drawing, extrusion, cutting, and the like. That is, it can be used for removing these oils from the surface in order to further perform a chemical conversion treatment, a coating treatment, and the like in a later step.
化成処理としては、例えばりん酸塩処理、クロメート処理、陽極酸化処理、あ
るいは遷移金属イオンや弗化物やこれ等の酸を含有する溶液を用いた処理を挙げ
ることができる。また皮膜処理としては、例えば有機ポリマーを用いた皮膜処理
、赤外線、可視光線、紫外線等の照射により相互結合してポリマーを形成する有
機物の皮膜処理、また例えば亜鉛、ニッケル、クローム、アルミニウム等の金属
めっきあるいはこれ等の金属を５０％以上含有する合金めっきを挙げる事ができ
る。Examples of the chemical conversion treatment include a phosphate treatment, a chromate treatment, an anodic oxidation treatment, and a treatment using a solution containing a transition metal ion, a fluoride, or an acid such as these. Examples of the film treatment include a film treatment using an organic polymer, a film treatment of an organic substance that forms a polymer by being interconnected by irradiation of infrared rays, visible light, ultraviolet rays, and the like, and a metal treatment such as zinc, nickel, chrome, and aluminum. Plating or alloy plating containing 50% or more of these metals can be mentioned.
多くの工業的方法により、金属帯板あるいは金属の型材は成形され、接合され
、更にこれに化成処理や皮膜処理が行なわれている。成形工程では、成形を可能
にするため、また金属の表面が工具とくっつくのを防止するため、金属は通常は
圧延油や成形油で覆う。これ等の例としては、圧延、曲げ、引き抜き、冷間押出
等や、切削、孔開け、ミリング等を挙げることが出来る。また金属材料が貯蔵さ
れあるいは移送される場合は、表面の腐食を防止するために防錆油が用いられる
。これ等の金属に更に後工程の化成処理や皮膜処理を施す場合は、残留した油は
適当な洗浄液を用いて後工程の妨げとならないように除去される。洗浄後は、表
面の水膜が例えば１０秒〜２分の間の所定の時間破れる事がなく、また水は完全
には流れ去らない程度の親水性にする事が好ましい。即ち洗浄液を用いてうまく
洗浄できた表面は、均一な水膜で覆われている。According to many industrial methods, a metal strip or a metal mold is formed and joined, and further subjected to a chemical conversion treatment and a coating treatment. In the forming process, the metal is usually covered with rolling oil or forming oil to allow for forming and to prevent the metal surface from sticking to the tool. Examples of these include rolling, bending, drawing, cold extrusion and the like, cutting, drilling, milling and the like. When the metal material is stored or transferred, a rust-preventive oil is used to prevent corrosion of the surface. When these metals are further subjected to a chemical conversion treatment or a coating treatment in a subsequent step, the remaining oil is removed using an appropriate cleaning solution so as not to hinder the subsequent steps. After washing, it is preferable to make the surface water film hydrophilic so that the water film does not break for a predetermined time of, for example, 10 seconds to 2 minutes, and water does not completely flow away. That is, the surface successfully cleaned using the cleaning liquid is covered with a uniform water film.
背景技術 清浄化した表面の親水性はいわゆる“水ブレークテスト”により点検されて来
た。この方法では水でぬらした直後の、あるいは２分間後の、表面のぬれていな
い部分のパーセントを目視で評価する。即ちぬれていない部分のパーセントが高
い程、清浄化は不十分であるとする。目視で評価するこの方法は簡易ではあるが
、しかし格別な能力の評価者が必要である。従ってこの方法は研究部門では行な
われていたが、生産ラインでは行なわれていなかった。BACKGROUND ART The hydrophilicity of a cleaned surface has been checked by the so-called "water break test". In this method, the percentage of the unwetted portion of the surface immediately after wetting with water or after 2 minutes is visually evaluated. That is, it is assumed that the higher the percentage of the portion that is not wet, the more insufficient the cleaning. This method of visual assessment is simple, but requires an evaluator of exceptional ability. Thus, this method was performed in the research department but not in the production line.
一の特定の波長又は複数の特定の波長の赤外線の吸収量により、溶媒の水分含
有量や物の湿分含有量を決定する方法が知られている。この際に選定する特定の
波長としては、水により特に強く吸収される波長を選ぶ。公知のごとく、赤外線
は、可視光線の長波長限界である７６０ｎｍに隣接した電磁波を指す。また波長
が１ｍｍになると、赤外線はマイクロウエーブになる。即ち狭義の赤外線の波長
の領域は７６０ｎｍ〜１５０００ｎｍである。この内、いわゆる近赤外線に該当
する波長のものが水分の定量測定に適している。即ち７６０ｎｍから２８００ｎ
ｍに至る領域の波長のものがよい。この領域においては、水は、１４３０ｎｍ，
１９００ｎｍ，２７２０ｎｍの波長を特に強く吸収する。There is known a method of determining the water content of a solvent or the moisture content of an object based on the absorption of infrared rays having one specific wavelength or a plurality of specific wavelengths. At this time, a wavelength that is particularly strongly absorbed by water is selected as the specific wavelength. As is known, infrared refers to electromagnetic waves adjacent to the long wavelength limit of visible light, 760 nm. When the wavelength becomes 1 mm, infrared rays become microwaves. That is, the wavelength range of infrared rays in a narrow sense is 760 nm to 15000 nm. Among them, those having a wavelength corresponding to so-called near infrared rays are suitable for quantitative measurement of moisture. That is, from 760 nm to 2800 n
Those having a wavelength in the region up to m are preferable. In this region, water is 1430 nm,
Particularly strongly absorbs the wavelengths of 1900 nm and 2720 nm.
赤外線による水の測定に関しては、例えば Analysis Instrumentation 28 Annual Symposium Abstracts, ISBNO-87664-687-9(1982), PP.21-25,の C.Jones
の“Near-Infraed Analysis in the Process Industry" に記載されている。Regarding the measurement of water by infrared rays, see, for example, C. Jones of Analysis Instrumentation 28 Annual Symposium Abstracts, ISBNO-87664-687-9 (1982), PP.21-25.
"Near-Infraed Analysis in the Process Industry".
しかしながら、本発明者等の知見では、赤外線の吸収を物品の表面の親水性の
決定に用いた例はなく、また洗浄の結果の点検に用いた例もない。尚 M. Stiles
, T.Haasner, B.Haase等の“Uberprufung der Reinigungsqualitat und Restschmutz-bestimmung-Teil II”JOT 1988(7),SS.58-63には、“水ブレークテ
スト”がオンラインでは行なう事ができないと述べられている。However, according to the findings of the present inventors, there is no example in which infrared absorption is used for determining the hydrophilicity of the surface of an article, and no example is used for checking the result of cleaning. M. Stiles
"Uberprufung der Reinigungsqualitat und Restschmutz-bestimmung-Teil II," JOT 1988 (7), SS.58-63, T.Haasner, B.Haase, etc., state that the "water break test" cannot be performed online. Have been.
発明の開示および発明を実施するための最良の形態 本発明は、親水性化処理を行なった固体の表面の親水性度を点検する方法であ
って、該表面を水でぬらし、赤外線を照射し、該表面からの反射赤外線の強度を
一の特定の波長又は複数の特定の波長について測定し、測定した該強度により、
該表面の水の平均被覆割合を決定する方法である。尚この測定は表面を水でぬら
した後１０秒〜２分の間に行なう事が好ましい。DISCLOSURE OF THE INVENTION AND BEST MODE FOR CARRYING OUT THE INVENTION The present invention is a method for checking the degree of hydrophilicity of a surface of a solid that has been subjected to a hydrophilization treatment, and the surface is wetted with water and irradiated with infrared rays. The intensity of the reflected infrared light from the surface is measured for one specific wavelength or a plurality of specific wavelengths, and by the measured intensity,
This is a method for determining the average water coverage on the surface. This measurement is preferably performed within 10 seconds to 2 minutes after the surface is wetted with water.
一の特定の波長又は複数の特定の波長としては７６０〜２８００ｎｍの赤外線
を用いる事が好ましい。水が特に強く吸収する波長の赤外線を用いる事が好まし
い。従って表面からの反射強度を測定する赤外線の波長としては、波長が１４３
０，１９００，２７２０ｎｍの何れか一の特定波長又は複数の波長について測定
する事が好ましい。It is preferable to use infrared rays of 760 to 2800 nm as one specific wavelength or a plurality of specific wavelengths. It is preferable to use infrared rays having a wavelength that water absorbs particularly strongly. Therefore, the wavelength of the infrared light for measuring the reflection intensity from the surface is 143.
It is preferable to measure at any one specific wavelength or a plurality of wavelengths of 0, 1900, and 2720 nm.
この方法では、一又は２以上の赤外線の光源を反射光を測定する測定装置の近
くに配して行なうことが好ましい。測定装置をとり巻いて配された複数個の赤外
線の光源を用いると、水の被覆割合が測定される部分への照射量が均一になる。
この結果、影の発生による誤差が減少する。In this method, it is preferable that one or more infrared light sources are arranged near a measuring device for measuring reflected light. When a plurality of infrared light sources arranged around the measuring device are used, the irradiation amount on the portion where the water coverage is measured becomes uniform.
As a result, errors due to the occurrence of shadows are reduced.
測定装置を用いて赤外線の強度が検出される、表面上の測定点の好ましい広さ
は、測定装置と表面との距離および測定装置との傾斜角度によって決まる。測定
装置と表面との距離が遠くなると、測定される表面の領域は大きくなる。表面上
の十分に広い、例えば３×４ｃｍの領域を、高い精度で測定するためには、測定
装置と表面との距離は１８〜５０ｃｍが好ましく、更に好ましくは２０〜３０ｃ
ｍである。尚この際赤外線は表面に対して約７５°の角度で照射され、照射と逆
向きの反射光が測定される事が好ましい。The preferred width of the measuring point on the surface, at which the intensity of the infrared light is detected using the measuring device, depends on the distance between the measuring device and the surface and the angle of inclination of the measuring device. As the distance between the measuring device and the surface increases, the area of the surface to be measured increases. In order to measure a sufficiently large area, for example, a 3 × 4 cm area on the surface with high accuracy, the distance between the measuring device and the surface is preferably 18 to 50 cm, more preferably 20 to 30 c.
m. In this case, it is preferable that the infrared ray is irradiated on the surface at an angle of about 75 °, and reflected light in the opposite direction to the irradiation is measured.
本発明における、表面の水の平均被覆割合の決定は、例えば表面１ｍ2当たり
の水量や水の平均膜厚のように厳密に行なう事は、必ずしも必要ではない。むし
ろ通常は、簡易に水にぬれる標準サンプルと比較し、測定する表面から反射され
た赤外線の強度が、標準サンプルの場合に対してどの様な序列にあるかが判れば
十分である。従って、表面の水の平均被覆割合の決定は、同じ特定の波長の赤外
線に関して、測定する表面から反射された赤外線の強度を標準サンプルから反射
された赤外線の強度と比較する事により行なうことができる。しかしこの際にお
いても、赤外線の光源の強さや、光源と測定装置との距離や光源と表面との距離
等は、測定する表面の場合も標準サンプルの場合も等しく行なう事が好ましい。
また標準サンプルも測定する表面と同じ材質である事が好ましい。In the present invention, it is not always necessary to determine the average coverage ratio of water on the surface strictly, for example, the amount of water per 1 m 2 of the surface or the average thickness of water. Rather, it is usually sufficient to compare the intensity of the infrared light reflected from the surface to be measured with the standard sample which is easily wetted with water, and to know the order in which the intensity of the infrared ray is reflected in the case of the standard sample. Thus, the determination of the average coverage of water on the surface can be made by comparing the intensity of the infrared light reflected from the surface to be measured with the intensity of the infrared light reflected from the standard sample, for infrared light of the same specific wavelength. . However, also in this case, it is preferable that the intensity of the infrared light source, the distance between the light source and the measuring device, the distance between the light source and the surface, and the like be the same both for the surface to be measured and the standard sample.
The standard sample is also preferably made of the same material as the surface to be measured.
この方法は、特定の表面の領域の水の平均被覆割合を決定するのに適している
。覆っている水膜が完全に近い程、表面は特定波長の赤外線をより多く吸収する
。洗浄が不十分で親水性が不足する場合は水膜に破れがあるが、この際には特定
波長の赤外線に対する吸収が低下し、表面から反射される赤外線の強度は大きく
なる。完全に湿った標準サンプルから反射される赤外線の強度と比較することに
より、測定する表面の水膜が完全であるかあるいは部分的であるかを知る事がで
きる。特定波長の赤外線の吸収が弱い程、測定する表面に存在する水は少ない。
この際は水膜は薄いが均一に存在するか、あるいは水膜は厚いが部分的にしか存
在しないのか何れかである。従って十分な厚さの水膜で完全にぬれている場合に
対するパーセントとして、測定する部分のぬれの程度を把握する事ができる。This method is suitable for determining the average water coverage of a particular surface area. The closer the covering water film is, the more the surface absorbs more infrared light of a particular wavelength. When the washing is insufficient and the hydrophilicity is insufficient, the water film is broken. In this case, the absorption of infrared light of a specific wavelength decreases, and the intensity of infrared light reflected from the surface increases. By comparing the intensity of infrared light reflected from a completely wet standard sample, it is possible to know whether the water film on the surface to be measured is complete or partial. The lower the absorption of infrared light of a specific wavelength, the less water is present on the surface to be measured.
At this time, either the water film is thin but present uniformly, or the water film is thick but only partially present. Therefore, it is possible to grasp the degree of wetness of the portion to be measured as a percentage relative to the case where the water film is completely wetted with a sufficiently thick water film.
清浄化作業の成果は、測定部分の面積の何％が水膜によって覆われているか、
あるいは水膜の平均厚さはどれくらいであるかとして把握される。この際、表面
で反射した赤外線の強度は、表面の異なった場所について把握し且つ相互に比較
する事ができる。この結果、異なった場所では親水性の程度が異なる事、従って
異なる完成度で清浄化が行なわれた事が把握される。The result of the cleaning operation is that what percentage of the area of the measurement area is covered by the water film,
Alternatively, the average thickness of the water film is grasped. At this time, the intensity of the infrared light reflected on the surface can be grasped for different places on the surface and compared with each other. As a result, it can be understood that the degree of hydrophilicity is different in different places, and that the cleaning was performed with different degrees of perfection.
本発明によると、一の特定の波長の、又は複数の特定の波長の赤外線を表面上
の異なる位置に照射し、各位置からの反射された赤外線の強度を測定する事によ
って、表面上の異なった位置における親水性の相違を知る事ができ、また各位置
から反射された赤外線の強度を相互に比較することができる。According to the present invention, by irradiating infrared rays of one specific wavelength or a plurality of specific wavelengths to different positions on the surface, and measuring the intensity of reflected infrared light from each position, different infrared light on the surface can be measured. It is possible to know the difference in hydrophilicity at different positions, and to compare the intensities of the infrared rays reflected from each position.
本発明を実施するに際しては、疎水性の領域の水は流れ落ちるように、測定表
面は水平面を傾斜させて設定することができる。即ち、この際の測定表面は水平
面ではない。即ち水でぬらした時と反射赤外線を測定する時との間は、測定表面
は水平面に対して１０°以上傾斜させておく事が好ましい。更に水でぬらした時
と反射赤外線を測定する時との時間の間隔は、常に同じようにする事が好ましい
。In practicing the present invention, the measurement surface can be set with an inclined horizontal plane so that water in the hydrophobic region flows down. That is, the measurement surface at this time is not a horizontal plane. That is, it is preferable that the surface to be measured is inclined by 10 ° or more with respect to the horizontal plane between the time when it is wet with water and the time when the reflected infrared ray is measured. Further, it is preferable that the time interval between the time when wet with water and the time when the reflected infrared ray is measured is always the same.
本発明の方法は、プラスチックの表面の親水化処理のための、例えば強酸化に
よる方法、プラズマによる方法、イオン照射による方法等の結果を点検するため
に用いる事ができる。この親水化処理が水溶液を用いない方法である場合は、本
発明を行なうためには表面を水でぬらす事が必要である。またこの親水化処理が
水溶液を用いる清浄化処理である場合は、清浄化処理が水でぬらす工程となって
いる。The method of the present invention can be used to check the results of a method for hydrophilizing the surface of plastic, for example, a method using strong oxidation, a method using plasma, a method using ion irradiation, and the like. When the hydrophilization treatment does not use an aqueous solution, it is necessary to wet the surface with water in order to carry out the present invention. When the hydrophilization treatment is a cleaning treatment using an aqueous solution, the cleaning treatment is a step of wetting with water.
本発明はまた、表面が洗浄後の後工程で化成処理や被覆を施す金属表面に対し
ても行なうことができる。尚この化成処理や被覆を施す処理の例はすでに述べた
通りである。従って本発明は表面処理鋼板や車や家庭用品の製造工程で用いる事
ができる。自動車や自動車部品の表面には清浄後にりん酸塩処理が施されている
。即ち通常は低亜鉛系りん酸皮膜が形成されている。本発明を、洗浄後にりん酸
塩処理を行なう自動車のボデー用材に適用する際は、複数の位置を測定する事が
好ましい。この際は洗浄液がボデー用材の全ての位置において均一で完全に作用
している事が好ましい。自動車用の部材には、材質も製造業者も異なる部材が用
いられ、これ等の部材には通常は異なる油が用いられていたため、この点は特に
重要である。The present invention can also be applied to a metal surface to be subjected to a chemical conversion treatment or coating in a later step after the surface is cleaned. Examples of the chemical conversion treatment and the coating treatment are as described above. Therefore, the present invention can be used in the production process of surface-treated steel sheets, cars and household goods. Phosphates are applied to the surfaces of automobiles and automobile parts after cleaning. That is, a low zinc phosphate film is usually formed. When the present invention is applied to a body material of an automobile which is subjected to a phosphate treatment after washing, it is preferable to measure a plurality of positions. In this case, it is preferable that the cleaning liquid acts uniformly and completely at all positions of the body material. This point is particularly important since different materials and manufacturers are used for automotive components and different oils are usually used for these components.
車の製造においては品質保証が極めて重要であるため、本発明の親水性度の測
定結果も車の部材に対応できるように保存しておくことが好ましい。即ち例えば
、車や車の部材に対応するバーコードを車や車の部材の移送手段につけておく。
このようにして置くと、後日苦情が発生した場合、問題となっている車や車の部
材の洗浄結果を追跡して見つける事が可能となる。Since quality assurance is extremely important in the manufacture of vehicles, it is preferable that the results of the measurement of the degree of hydrophilicity of the present invention be stored so as to be compatible with the members of the vehicle. That is, for example, a bar code corresponding to a vehicle or a member of a vehicle is attached to a vehicle or a transporting means of the member of the vehicle.
With this arrangement, if a complaint occurs later, it is possible to track and find the cleaning result of the car or the member of the car in question.
親水性度が測定される表面と、赤外線の測定装置との相対的な位置の移動に関
しては二つの異なった場合が発生する。即ち赤外線を測定している間に表面を測
定装置に対して移動させない事が考えられる。Two different cases occur with respect to the movement of the relative position between the surface whose hydrophilicity is to be measured and the infrared measuring device. That is, it is conceivable that the surface is not moved with respect to the measuring device while measuring the infrared rays.
しかし、赤外線を測定している間の表面を測定装置に対して移動させる事も考
えられる。例えば工業生産工程においては、測定される部材や金属帯は均一な速
度で移動しているのが常である。この際は、測定される表面を測定装置に対して
相対的に移動させないためには、測定装置を測定される表面と同じ速度で同じ方
向に移動させることとなる。However, it is also conceivable to move the surface relative to the measuring device while measuring the infrared radiation. For example, in an industrial production process, a member or a metal strip to be measured usually moves at a uniform speed. In this case, in order not to move the surface to be measured relatively to the measuring device, the measuring device is moved at the same speed and in the same direction as the surface to be measured.
一方、赤外線の強度が測定されている間、表面を測定装置に関して移動させる
事もできる。この場合には測定装置は一定の位置に固定し、親水性度を測定する
部材は測定装置を通過させる。この方法を行なうと、測定している時間は１〜１
０秒程度であるが、この時間の間に、実際の測定点よりも広い部分を検知する事
ができる。従って測定の間に測定装置を通過する表面の場合は、その部分の水の
平均被覆割合が把握される。On the other hand, the surface can be moved with respect to the measuring device while the intensity of the infrared radiation is being measured. In this case, the measuring device is fixed at a fixed position, and the member for measuring the degree of hydrophilicity is passed through the measuring device. When this method is performed, the measuring time is 1 to 1
Although it is about 0 seconds, a portion wider than the actual measurement point can be detected during this time. Thus, in the case of a surface passing through the measuring device during the measurement, the average water coverage of that part is ascertained.
測定されている表面を測定装置に対して移動させない場合は、同じ時間測定し
ても測定装置は表面の小さい範囲しか点検する事ができない。しかし測定装置と
測定表面との距離を測定の間に変えると広い面積の測定が可能となる。しかしこ
の方法は好ましくない。即ち測定装置と測定表面との距離が大きくなると測定装
置に到達する赤外線の強度は小さくなる。これは測定時間を長くする事により一
部補うことができる。しかしこれを行なうためには、測定装置と測定表面との距
離に対して測定装置を検定しておく事となる。しかしこれは出費のみが大きく大
きな利益はもたらさない。If the surface being measured is not moved relative to the measuring device, the measuring device can only inspect a small area of the surface, even during the same time measurement. However, if the distance between the measuring device and the measuring surface is changed during the measurement, a large area can be measured. However, this method is not preferred. That is, as the distance between the measurement device and the measurement surface increases, the intensity of infrared rays reaching the measurement device decreases. This can be partially compensated for by increasing the measurement time. However, to do this, the measuring device must be verified against the distance between the measuring device and the measuring surface. However, this is expensive and does not bring much benefit.
自動車の車体等を測定するに際し、測定する区割を区別して測定することがで
きると、それぞれの区割で水の被覆が同じであるかどうかを比較することができ
る。この方法によると、洗浄の不均一があるかどうかを知得することができる。In measuring the body of an automobile or the like, if the divisions to be measured can be measured separately, it can be compared whether or not each division has the same water coverage. According to this method, it is possible to know whether there is uneven cleaning.
上記と同様に行なうと、親水化処理を行なった後のプラスチックの親水性度を
点検することもできる。When the same is performed as described above, the degree of hydrophilicity of the plastic after the hydrophilic treatment can be checked.
本発明の方法は、制御系統を用いて制御を行なって、下記のように用いる事が
できる。即ちプログラム制御の下で親水性度の決定は自動的に行なわれ、結果は
その場所であるいは遠隔地で出力され、またデーターキャリアーによって後工程
のために貯えられる。また測定結果によっては、その場所であるいは遠隔地で警
報が発せられ、洗浄が親水性化の目的の場合には洗浄液の組成が点検され自動的
に調整されるように用いる事もできる。The method of the present invention can be used as follows, with control using a control system. That is, the determination of the degree of hydrophilicity is performed automatically under program control, and the results are output locally or remotely and stored by a data carrier for further processing. Further, depending on the measurement result, an alarm is issued at the place or at a remote place, and when the cleaning is for the purpose of hydrophilicity, the composition of the cleaning liquid can be checked and automatically adjusted.
本発明の方法によると、また疎水性の不純物のクリーニングに際し、人力を介
入させないで、親水化処理の結果を点検する事ができる。このため、人力を介入
させる事なく、自動化工程に用いることができる。この工程において本発明の方
法は、洗浄結果の点検に用いられ、洗浄後に表面がいかほど水にぬれるようにな
ったかを測定する。また結果はその場所であるいは遠隔地で出力する事ができる
。更に、結果は例えば品質保証等における記録の照合等の後工程のために、デー
ターキャリアーに保存しておく事ができる。更に洗浄後のぬれていない所定の量
を更にチェックするための処理を行なう事ができる。警報はその場所にあるいは
遠隔地に設ける事ができる。この警報は光学的なシグナルでもよいし、音響のシ
グナルでもよいしスクリーンに表示するものであってもよい。更に、測定結果に
よって、洗浄液の組成のチェックを開始し、洗浄液を調整することができる。According to the method of the present invention, it is possible to check the result of the hydrophilization treatment without any human intervention when cleaning hydrophobic impurities. For this reason, it can be used for an automation process without human intervention. In this step, the method of the invention is used to check the cleaning results and measures how wet the surface becomes after the cleaning. The results can be output locally or remotely. Further, the results can be stored in a data carrier for post-processing such as collation of records in quality assurance and the like. Further, a process for further checking the predetermined wet amount after cleaning can be performed. The alert can be provided at that location or at a remote location. This alarm may be an optical signal, an acoustic signal, or a display on a screen. Furthermore, checking of the composition of the cleaning liquid can be started based on the measurement result, and the cleaning liquid can be adjusted.
本発明は、表面が洗浄液で洗浄された後のウェッタビリティを決定するのに極
めて適している。この際、公知の何れの洗浄液を使用したのかは重要ではない。The invention is very suitable for determining the wettability after a surface has been cleaned with a cleaning liquid. At this time, it does not matter which known cleaning liquid was used.
親水性度の点検結果がその場所のみではなく遠隔地においても出力できる事は
、本発明の有利な点である。この際の遠隔地とは、本発明のプロセスを制御して
いる制御系と、直接にまたは目視的には接触していない場所をいう。従って遠隔
地は、例えば、金属部材の全表面処理のために洗浄工程の出力を点検し、あるい
は更に洗浄液を点検するための指示を与えている中央制御室であってもよい。遠
隔地はまた、全プロセスが監視でき制御でき、洗浄浴が設置されている部屋とは
異なる中央制御室であってもよい。洗浄工程が行なわれている工場の外側の場所
も遠隔地である。このような場合は熟練者は洗浄液の近傍にはいないが、洗浄工
程の成果を点検する事が可能であり、また必要に応じて洗浄液の再生の手段を講
ずる事も可能となる。従って熟練者が洗浄液と同じ場所にいる必要性が少なくな
る。It is an advantage of the present invention that the inspection result of the degree of hydrophilicity can be output not only at the place but also at a remote place. In this case, the remote place means a place that is not directly or visually in contact with the control system that controls the process of the present invention. Thus, the remote location may be, for example, a central control room that is checking the output of the cleaning process for full surface treatment of the metal component, or even providing instructions for checking the cleaning fluid. The remote location may also be a central control room where the entire process can be monitored and controlled, and different from the room where the wash bath is located. The location outside the factory where the cleaning process takes place is also a remote location. In such a case, the skilled person is not in the vicinity of the cleaning liquid, but can check the result of the cleaning step, and can take measures for regenerating the cleaning liquid if necessary. Thus, the need for skilled personnel to be at the same location as the cleaning liquid is reduced.
品質保証を目的とする際は、測定する物例えば自動車の車体のチェック結果は
データーキャリアーに保持する。この際は測定する物にはバーコード等の、測定
結果との対応が可能な特徴のあるマーキングを設ける。For the purpose of quality assurance, the check result of an object to be measured, for example, the body of an automobile is held in a data carrier. In this case, the object to be measured is provided with a marking, such as a barcode, having a characteristic that can correspond to the measurement result.
本発明の重要な点はまた、表面の親水性のチェック結果に基づいき、プロセス
の制御システムは、自然に、人力を介入させる事なく、必要に応じて洗浄液の更
新を開始する点にある。An important aspect of the present invention is also that, based on the results of the surface hydrophilicity check, the process control system will naturally initiate a renewal of the cleaning solution as needed without human intervention.
洗浄の不十分な結果に対しては、各種の評価方法を行なうことができる。水の
平均的な被覆量が存在すべき範囲を許容範囲として定める事ができる。また多数
回のあるいは長時間の測定によっても、水の平均的な被覆量が少ない回数しか的
中しない範囲を制御範囲として決めることもできる。水の平均的な被覆量がこの
制御範囲にしばしば的中するならば、これを１または２以上のシステムにする事
ができる。この際には傾向分析を同時に行なう。傾向分析の結果、水の平均的な
被覆量の的中率が時間と共に増加するならば、そのようなシステムにする。この
ようにして、水の平均的な被覆量の下限が最終的に決められ、またこの下限以下
では更に１または２以上のシステムが自動的に準備される。Various evaluation methods can be performed for insufficient cleaning results. The range in which the average water coverage should exist can be defined as an allowable range. In addition, a range in which the average water coverage is only a small number of hits can be determined as the control range by performing the measurement many times or for a long time. If the average water coverage often hits this control range, it can be one or more systems. At this time, a trend analysis is performed at the same time. If the trend analysis shows that the average coverage of water increases over time, such a system is used. In this way, a lower limit for the average water coverage is finally determined, and below this lower limit one or more further systems are automatically prepared.
本発明のプロセスに対しては、前記のごとくシステムを創設する。このシステ
ムに対して、洗浄液に関する１または２以上のパラメーターを設ける事ができる
。例えば洗浄液のアルカリ度、界面活性剤の量、洗浄液の油による汚損程度等を
決める事ができる。これ等を決定する方法に関しては、例えば独特許出願198027
25，19814500，19820800，19836720等に記載されている。また洗浄液の成分分析
の結果を基に、洗浄液に対する追加添加する成分や、洗浄化方法や更新方法等も
検討され実行される。このような、洗浄液の機能の回復手段は独特許出願 19802
725，19814500，19820800，19836720 に記載されている。For the process of the present invention, a system is created as described above. One or more parameters for the cleaning solution can be provided for this system. For example, the alkalinity of the cleaning liquid, the amount of the surfactant, the degree of contamination of the cleaning liquid with oil, and the like can be determined. Regarding a method for determining these, for example, German Patent Application 198027
25, 1914500, 19820800, 1983720 and the like. Further, based on the result of the component analysis of the cleaning liquid, components to be added to the cleaning liquid, a cleaning method, a renewal method, and the like are also examined and executed. Such means for restoring the function of the cleaning solution is disclosed in German Patent Application 19802.
725, 1914500, 19820800, 1983720.
洗浄液の点検や再生をいかような手段で行なう場合でも、これ等の手段の使用
やその結果は、将来のために、またその場所であるいは遠隔地で表示するために
データーキャリアーに記載しておく事が好ましい。Whatever means you use to check or regenerate the cleaning solution, the use and results of these measures should be noted on the data carrier for future use and for display at that location or at a remote location. Things are preferred.
極端な手段ではあるが、水の平均被覆割合が限界値以下の場合には、全生産プ
ロセスを停止する手段や、その場所であるいは遠隔地に警報を出力する手段を設
ける事もできる。本発明の方法においては、例えば１時間から１日の間の決めら
れた時間毎に機能の自己テストを行なう測定装置が好ましく、また１０ヶ毎のあ
るいは１００ヶ毎の所定の箇数毎に機能の自己テストを行なう測定装置が好まし
く、また２ヶの測定値が異なる場合に機能の自己テストを行なう測定装置である
事が好ましい。尚測定装置によるこれ等の機能の自己テスト結果は、将来のチェ
ックのためにあるいは品質保証のためにデーターキャリアーに保存される事が好
ましい。Although it is an extreme measure, if the average water coverage is below the limit value, it is possible to provide a means for stopping the entire production process or a means for outputting an alarm at the place or at a remote place. In the method of the present invention, a measuring device that performs a self-test of the function at a predetermined time, for example, from one hour to one day, is preferable, and the function is performed every 10 or 100 times. It is preferable that the measuring device perform a self-test of the above, and it is preferable that the measuring device perform a self-test of the function when two measured values are different. The results of the self-test of these functions by the measuring device are preferably stored on the data carrier for future checks or for quality assurance.
テストを行なうに際しては、測定物と同質の乾燥状態のテストピースを測定装
置の赤外線の通路に置く。このテストピースから反射された赤外線は最大の強度
を有し、且つ吸収量が最小の反射赤外線である。次に所定の吸収力を有する１ま
たは２以上のフィルターを赤外線の通路に配する。測定装置は所定の吸収力通り
の測定結果を示すかどうかをチェックする。もしフィルターを用いて測定した吸
収力に許容以上の相違がある場合は測定装置の故障である。この場合は、その場
所にあるいは遠隔地に警報を出力するようにする。またこの場合には、測定装置
をチェックするまでは生産活動を停止するように制御システムを設定する。When conducting the test, a dry test piece of the same quality as the test object is placed in the infrared passage of the measuring device. The infrared ray reflected from the test piece is the reflected infrared ray having the maximum intensity and the minimum absorption. Next, one or two or more filters having a predetermined absorbing power are arranged in the path of infrared rays. The measuring device checks whether it shows the measurement result according to the predetermined absorption power. If there is an unacceptable difference in the absorption power measured using the filter, it is a failure of the measuring device. In this case, an alarm is output to the place or a remote place. In this case, the control system is set so that the production activity is stopped until the measuring device is checked.
産業上の利用可能性 本発明の方法によると、上述のごとく、人を介入させないで、親水性の表面が
、即ち表面の清浄化がうまく出来た事を点検することができる。清浄化の結果が
不十分な場合、あるいは清浄化結果は許容範囲にあるが悪化した場合には処理溶
液の成分の点検が自動的に開始されるが、その結果、洗浄液の更新成分の添加や
性能維持を自動的に開始させる事ができる。その結果、人間の監督を必要としな
いで、工業製品の品質の維持を保証する事が可能となる。本発明の方法で得られ
た情報は取り出されデーターキャリアに貯蔵され、品質の保証と制御方法を評価
するために用いられる。本発明の制御システムはこの手段に適合するように作ら
れる。本発明の方法で得られたデーターは遠隔地に移送される事が可能であり、
従って清浄化がうまくいっている事を遠隔地でチェックする事ができる。このよ
うに、本発明は一方では生産の信頼性を高め、他方では労務費の節減をもたらす
。INDUSTRIAL APPLICABILITY According to the method of the present invention, as described above, it is possible to check, without human intervention, that the hydrophilic surface, that is, the surface was successfully cleaned. If the cleaning result is insufficient, or if the cleaning result is within the allowable range but deteriorates, a check of the components of the processing solution is automatically started. Performance maintenance can be started automatically. As a result, it is possible to guarantee the maintenance of the quality of industrial products without the need for human supervision. The information obtained by the method of the invention is retrieved and stored on a data carrier and used to evaluate quality assurance and control methods. The control system of the present invention is tailored to this measure. The data obtained by the method of the present invention can be transferred to a remote location,
Therefore, it can be checked at a remote place that the cleaning is successful. Thus, the present invention on the one hand increases the reliability of the production and on the other hand leads to a reduction in labor costs.
実施例 本発明の方法を、自動車用の金属薄板の試験片（１０×２０cm）の表面をチェ
ックするための通常の連続洗浄装置で実施した。自動車製造用の異なった材料の
金属薄板の試験片を用いた。即ち冷延鋼板、ホットディップ亜鉛めっき鋼、アル
ミニウム、りん酸塩処理前の鋼板等を用いた。赤外線の光源および金属板からの
反射赤外線の測定装置は、試験片が光源や測定装置を通過して移動する位置に設
置した。光源としてはタングステン、ハロゲンランプを用いたがその輻射する赤
外線の波長は７００〜２０００ｎｍの範囲にある。金属薄板の試験片で反射され
た赤外線の測定には硫化鉛の検出機を用いた。１７０３ｎｍの波長を強度測定に
参照し、１９２１ｎｍの波長の強度を測定した。波長の特定にはフィルターを用
いた。EXAMPLES The method of the present invention was carried out in a conventional continuous cleaning apparatus for checking the surface of a test piece (10 × 20 cm) of a sheet metal sheet for an automobile. Specimens of sheet metal of different materials for automobile manufacture were used. That is, a cold-rolled steel sheet, hot-dip galvanized steel, aluminum, a steel sheet before phosphate treatment, or the like was used. The infrared light source and the measuring device for measuring the reflected infrared light from the metal plate were installed at positions where the test piece moved through the light source and the measuring device. Tungsten and halogen lamps were used as the light source, and the wavelength of the emitted infrared light was in the range of 700 to 2000 nm. A lead sulfide detector was used to measure the infrared light reflected from the test piece of the thin metal plate. With reference to the wavelength of 1703 nm for the intensity measurement, the intensity of the wavelength of 1921 nm was measured. A filter was used to specify the wavelength.
水にぬらし、検出機の前を通過させる金属薄板の試験片には、予め定めた波長
の赤外線を弱化させて照射する。この弱化は金属薄板の材質が同じ場合は一定に
する。個々の試験片については、表面から反射される特定波長の赤外線の弱化が
少ない事が検知されると、これは水の平均被覆厚さが薄い事になり、不十分な洗
浄結果に対応することとになる。これは例えば洗浄されていない薄板である。A thin metal test piece that is wetted with water and passed in front of the detector is irradiated with a weakened infrared ray of a predetermined wavelength. This weakening is constant when the material of the metal sheet is the same. For individual specimens, the detection of low attenuation of infrared light of a particular wavelength reflected from the surface indicates that the average coating thickness of water is thin, which corresponds to poor cleaning results. And This is, for example, an unwashed sheet.
───────────────────────────────────────────────────── フロントページの続き (81)指定国 ＥＰ(ＡＴ，ＢＥ，ＣＨ，ＣＹ， ＤＥ，ＤＫ，ＥＳ，ＦＩ，ＦＲ，ＧＢ，ＧＲ，ＩＥ，Ｉ Ｔ，ＬＵ，ＭＣ，ＮＬ，ＰＴ，ＳＥ)，ＡＵ，ＢＧ，Ｂ Ｒ，ＢＹ，ＣＡ，ＣＮ，ＣＺ，ＧＥ，ＨＲ，ＨＵ，ＩＤ ，ＩＮ，ＩＳ，ＪＰ，ＫＧ，ＫＰ，ＫＲ，ＫＺ，ＬＫ， ＬＴ，ＬＶ，ＭＤ，ＭＸ，ＮＯ，ＮＺ，ＰＬ，ＲＯ，Ｒ Ｕ，ＳＧ，ＳＩ，ＳＫ，ＴＪ，ＴＭ，ＴＲ，ＵＡ，ＵＳ ，ＵＺ，ＶＮ，ＹＵ，ＺＡ (72)発明者 バルティク−ヒムラー イボルヤ ドイツ国、Ｄ−51519 オーデンタール、 シェーネアオスジヒト１ｂ (72)発明者 クリング ハンスーウイリ ドイツ国、Ｄ−42277 ブッペルタール、 ケニヒスベルガーストラーセ76Ｄ (72)発明者 スンチエン アンドレアス ドイツ国、Ｄ−42289 ブッペルタール、 リヒアルト−ストラウス−アレー３ (72)発明者 ローゼ アンドレアス ドイツ国、Ｄ−40764 ランゲンフエルト、 マルティン−ブーバー−ストラーセ６ Ｆターム(参考） 2G059 AA05 BB08 CC09 EE02 FF04 FF08 GG00 GG03 HH01 HH06 JJ02 KK01 MM02 MM03 MM05 4K053 PA02 PA12 QA05 TA07 YA17 YA30 ──────────────────────────────────────────────────続 き Continuation of front page (81) Designated country EP (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE ), AU, BG, BR, BY, CA, CN, CZ, GE, HR, HU, ID, IN, IS, JP, KG, KP, KR, KZ, LK, LT, LV, MD, MX, NO , NZ, PL, RO, RU, SG, SI, SK, TJ, TM, TR, UA, US, UZ, VN, YU, ZA. Schneås-Oszicht 1b (72) Inventor Kring Hans-Willien D-42277 Wuppertal, Germany, Kenichs Bergerstrasse 76D (72) Inventor Santien Andreas Germany, D-42289 Wuppertal, Richtal-Straus-Alley 3 (72) Inventor Rose Andreas Germany, D-40764 Langenfeld, Martin-Buber-Strase 6 F-term ( Reference) 2G059 AA05 BB08 CC09 EE02 FF04 FF08 GG00 GG03 HH01 HH06 JJ02 KK01 MM02 MM03 MM05 4K053 PA02 PA12 QA05 TA07 YA17 YA30
Claims (14)
て、該表面を水でぬらし、赤外線を照射し、該表面からの反射赤外線の強度を一
の特定の波長又は複数の特定の波長について測定し、測定した該強度により該表
面の水の平均被覆割合を決定する、親水性度の点検方法。1. A method for checking the degree of hydrophilicity of a surface of a solid subjected to a hydrophilic treatment, wherein the surface is wetted with water, irradiated with infrared rays, and the intensity of reflected infrared rays from the surface is reduced to a specific value. A method for checking the degree of hydrophilicity, comprising measuring a wavelength or a plurality of specific wavelengths, and determining an average water coverage on the surface based on the measured intensity.
波長が７６０〜２８００ｎｍの範囲にある請求項１の方法。2. The method of claim 1, wherein one or more specific wavelengths of reflected infrared light whose intensity is to be measured are in the range of 760-2800 nm.
波長が１４３０，１９００，２７２０ｎｍの何れかの一の特定のあるいは複数の
特定の波長である請求項２の方法。3. The method of claim 2, wherein the one or more specific wavelengths of the reflected infrared light whose intensity is to be measured are any one or more specific wavelengths of 1430, 1900, and 2720 nm. .
の特定の波長の反射赤外線の強度を、水でぬらした標準表面からの該一の特定の
波長の反射赤外線の強度と比較する事により行なう決定である、請求項１〜３の
何れかの方法。4. The method of claim 1, wherein determining the average coverage of water on the surface comprises determining the intensity of at least one specific wavelength of reflected infrared light from the surface by the reflected infrared light of the one specific wavelength from a water-wet standard surface. A method according to any of claims 1 to 3, wherein the determination is made by comparing with the intensity of
外線を照射し、表面の異なる場所からの反射赤外線の強度を一の特定の波長又は
複数の特定の波長について測定し、異なる場所からの該反射赤外線の強度を相互
に比較することにより、表面の異なる場所の親水性度の相違を決定する、親水性
度の点検方法。5. A method of irradiating infrared rays to different places on the surface by using the method according to claim 1, and adjusting the intensity of reflected infrared rays from different places on the surface to one specific wavelength or a plurality of specific wavelengths. A method for checking the degree of hydrophilicity, comprising measuring wavelengths and comparing the intensities of the reflected infrared rays from different places with each other to determine the difference in the degree of hydrophilicity at different places on the surface.
との間は、測定表面を水平面に対して１０°以上傾斜させておくことを特徴とす
る、請求項１〜５の何れかの方法。6. The method according to claim 1, wherein the measuring surface is inclined at least 10 ° with respect to the horizontal plane between the time when the surface is wet with water and the time when the intensity of the reflected infrared rays is measured. Item 5. The method according to any one of Items 1 to 5.
の何れかの方法。7. The method according to claim 1, wherein the hydrophilicity-imparting treatment is washing using an aqueous washing liquid.
Any of the methods.
表面である、請求項７の方法。8. The method according to claim 7, wherein the surface is a metal surface to be subjected to a chemical conversion treatment or a coating treatment after cleaning.
材の表面である、請求項８の方法。9. The method of claim 8, wherein the surface is a surface of a vehicle or vehicle component that forms a phosphate coating after cleaning.
処理したプラスチックの表面の親水性度の点検である、請求項１〜６の何れかの
方法。10. The method according to claim 1, wherein the inspection of the degree of hydrophilicity of the surface of the solid subjected to the hydrophilic treatment is an inspection of the degree of hydrophilicity of the surface of the plastic subjected to the hydrophilic treatment.
射赤外線の強度を測定している測定装置に対して相対的に移動させない事を特徴
とする、請求項１〜１０の何れかの方法。11. The apparatus according to claim 1, wherein the surface is not moved relative to the measuring device measuring the intensity of the reflected infrared light while the intensity of the reflected infrared light from the surface is being measured. Any of the methods of to 〜１０.
射赤外線の強度を測定している測定装置に対して相対的に移動させる事を特徴と
する、請求項１〜１０の何れかの方法。12. The method according to claim 1, wherein the surface is moved relative to a measuring device measuring the intensity of the reflected infrared light while measuring the intensity of the reflected infrared light from the surface. Any of the methods of to 〜１０.
点検の結果はその場所であるいは遠隔地で出力されあるいはデーターキャリアー
によって後工程用に貯えられ、測定の結果によってはその場所であるいは遠隔地
で警報が発せられあるいは親水性化の目的が洗浄の場合には洗浄液の成分が点検
されることを特徴とする、請求項１〜１１の何れかの方法。13. The inspection of the degree of hydrophilicity is automatically performed by program control,
Inspection results are output at the site or at a remote location or stored for later processing by a data carrier, depending on the results of the measurement, an alarm is issued at the site or at a remote location, or when the purpose of hydrophilicity is cleaning. 12. The method according to claim 1, wherein the components of the cleaning liquid are checked.
数の測定の後で、あるいは２つの測定値に所定の許容値よりも大きい相違が発生
した場合に、機能の自己テストを行なう測定装置である、請求項１〜１３の何れ
かの方法。14. The function of the infrared measuring device after a predetermined time, after a predetermined number of measurements, or when a difference between two measured values exceeds a predetermined allowable value. 14. The method according to any one of claims 1 to 13, which is a measuring device for performing a self-test.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19855957A DE19855957B4 (en) | 1998-12-04 | 1998-12-04 | Automatic control of the hydrophilicity of a solid surface with infrared spectroscopy |
| DE19855957.7 | 1998-12-04 | ||
| PCT/EP1999/007367 WO2000034737A1 (en) | 1998-12-04 | 1999-10-05 | Automatic control of the hydrophilicity of a solid surface by infrared spectroscopy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002531855A true JP2002531855A (en) | 2002-09-24 |
Family
ID=7889951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000587148A Pending JP2002531855A (en) | 1998-12-04 | 1999-10-05 | Inspection method for the degree of hydrophilicity of solid surfaces using infrared spectroscopy |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1056986A1 (en) |
| JP (1) | JP2002531855A (en) |
| KR (1) | KR20010090007A (en) |
| AR (1) | AR021530A1 (en) |
| AU (1) | AU1033300A (en) |
| CA (1) | CA2353600A1 (en) |
| CZ (1) | CZ20011980A3 (en) |
| DE (1) | DE19855957B4 (en) |
| WO (1) | WO2000034737A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006226709A (en) * | 2005-02-15 | 2006-08-31 | Jfe Steel Kk | Measuring instrument of amount of aqueous solution |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014209862A1 (en) * | 2014-05-23 | 2015-11-26 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method and device for determining a surface quality |
| DE102021100216A1 (en) | 2021-01-08 | 2022-07-14 | Universität Kassel, Körperschaft des öffentlichen Rechts | Method for monitoring the coverage of a mold surface of a mold with a process aid in a casting process |
| CN113029759B (en) * | 2021-03-31 | 2022-11-01 | 江西中科高博科技服务有限公司 | Cable performance detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1303819C2 (en) * | 1964-05-29 | 1973-07-12 | DEVICE FOR MEASURING A COATING THICKNESS ON SURFACES | |
| GB1302196A (en) * | 1969-04-23 | 1973-01-04 | ||
| US3675019A (en) * | 1971-03-19 | 1972-07-04 | Measurex Corp | Apparatus for measuring the amount of a substance that is associated with a base material |
| JPS61120004A (en) * | 1984-11-16 | 1986-06-07 | Toshiba Electron Syst Kk | Measuring instrument for amount of water and ink |
| US4789564A (en) * | 1987-03-31 | 1988-12-06 | Union Carbide Corporation | Hydridoaminosilane treatment for rendering surfaces water-repellent |
| US5250811A (en) * | 1991-12-20 | 1993-10-05 | Eastman Kodak Company | Method for determining compositional information of a multilayer web |
| US5406082A (en) * | 1992-04-24 | 1995-04-11 | Thiokol Corporation | Surface inspection and characterization system and process |
| US5397397A (en) * | 1992-09-18 | 1995-03-14 | Crestek, Inc. | Method for cleaning and drying of metallic and nonmetallic surfaces |
| EP0599150B1 (en) * | 1992-11-12 | 1997-09-10 | Matsushita Electric Industrial Co., Ltd. | Hydrophilic thin coating and method of manufacturing the same |
| US5567444A (en) * | 1993-08-30 | 1996-10-22 | Ecolab Inc. | Potentiated aqueous ozone cleaning and sanitizing composition for removal of a contaminating soil from a surface |
| DE19802725C1 (en) * | 1998-01-24 | 1999-11-11 | Henkel Kgaa | Automatic control and control of detergent baths by determining the alkalinity |
| DE19814500A1 (en) * | 1998-04-01 | 1999-10-14 | Henkel Kgaa | Automatic control and regulation of the surfactant content in aqueous process solutions |
| DE19820800C2 (en) * | 1998-05-09 | 2001-06-28 | Henkel Kgaa | Automatic determination of the load of aqueous cleaning solutions with carbon-containing compounds |
| DE19836720A1 (en) * | 1998-08-13 | 2000-02-17 | Henkel Kgaa | Automatic testing and control of cleaning baths, as used in metal processing, e.g. for cleaning metal pieces before anti-corrosion processes |
-
1998
- 1998-12-04 DE DE19855957A patent/DE19855957B4/en not_active Expired - Fee Related
-
1999
- 1999-10-05 JP JP2000587148A patent/JP2002531855A/en active Pending
- 1999-10-05 CA CA002353600A patent/CA2353600A1/en not_active Abandoned
- 1999-10-05 CZ CZ20011980A patent/CZ20011980A3/en unknown
- 1999-10-05 AU AU10333/00A patent/AU1033300A/en not_active Abandoned
- 1999-10-05 KR KR1020017005114A patent/KR20010090007A/en not_active Application Discontinuation
- 1999-10-05 EP EP99948586A patent/EP1056986A1/en not_active Withdrawn
- 1999-10-05 WO PCT/EP1999/007367 patent/WO2000034737A1/en not_active Application Discontinuation
- 1999-12-03 AR ARP990106153A patent/AR021530A1/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006226709A (en) * | 2005-02-15 | 2006-08-31 | Jfe Steel Kk | Measuring instrument of amount of aqueous solution |
| JP4586561B2 (en) * | 2005-02-15 | 2010-11-24 | Ｊｆｅスチール株式会社 | Aqueous solution measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19855957B4 (en) | 2008-10-30 |
| EP1056986A1 (en) | 2000-12-06 |
| KR20010090007A (en) | 2001-10-17 |
| AU1033300A (en) | 2000-06-26 |
| WO2000034737A1 (en) | 2000-06-15 |
| AR021530A1 (en) | 2002-07-24 |
| CA2353600A1 (en) | 2000-06-15 |
| DE19855957A1 (en) | 2000-06-08 |
| CZ20011980A3 (en) | 2001-10-17 |
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