JPH0798959B2 - Cleaning composition - Google Patents
Cleaning compositionInfo
- Publication number
- JPH0798959B2 JPH0798959B2 JP2181285A JP18128590A JPH0798959B2 JP H0798959 B2 JPH0798959 B2 JP H0798959B2 JP 2181285 A JP2181285 A JP 2181285A JP 18128590 A JP18128590 A JP 18128590A JP H0798959 B2 JPH0798959 B2 JP H0798959B2
- Authority
- JP
- Japan
- Prior art keywords
- cleaning
- liquid crystal
- present
- weight
- surfactant
- 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
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- Liquid Crystal (AREA)
- Detergent Compositions (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、液晶表示装置の製造時等に使用し、液晶等の
汚れ除去性、リンス性に優れ、かつ安全でフロンの如き
環境汚染性が無い洗浄剤組成物に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is used for manufacturing a liquid crystal display device, etc., and is excellent in stain removal property and rinsing property of liquid crystal, etc., and is safe and environmental pollutant like CFC. The present invention relates to a cleaning composition.
一般に液晶表示装置は対向面に電極の設けられた2枚の
基板間に液晶を充填してなる液晶セルが用いられている
が、この2枚の基板の外側に液晶が付着していると鮮明
な表示画面が得られないばかりでなく、他の電子部品に
悪影響を及ぼすこともあるため、除去しなければならな
い。In general, a liquid crystal display device uses a liquid crystal cell in which liquid crystal is filled between two substrates provided with electrodes on opposite surfaces, but it is clear that liquid crystal adheres to the outside of these two substrates. Not only is it impossible to obtain a good display screen, but it may also adversely affect other electronic components, so it must be removed.
従来、付着した液晶の除去にはフロン113や1,1,1−トリ
クロロエタン等が使用されてきたが、これらは上空のオ
ゾン層の破壊等の環境問題、毒性の問題があり、その使
用が制限されつつある。これに対し糖類やアルコール類
による洗浄は、これらの問題はないが、液晶汚れの除去
性が充分ではない。Conventionally, Freon 113, 1,1,1-trichloroethane, etc. have been used to remove adhered liquid crystals, but these are limited in their use due to environmental problems such as destruction of the ozone layer in the sky and toxicity problems. Is being done. On the other hand, washing with sugars or alcohols does not have these problems, but the ability to remove liquid crystal stains is not sufficient.
従って、環境を汚染せず、毒性が低く、更に汚れ除去性
に優れた洗浄剤組成物が望まれていた。Therefore, there has been a demand for a detergent composition which does not pollute the environment, has low toxicity, and is excellent in stain removability.
かかる実情に鑑み、本発明者らは鋭意研究を行った結
果、特定の炭化水素と界面活性剤とを特定量配合すれ
ば、環境汚染、毒性の問題がなく、かつ汚れ除去性に優
れ、更にリンス性も良好な洗浄剤組成物が得られること
を見出し、本発明を完成した。In view of such actual circumstances, the present inventors have conducted diligent research and as a result, if a specific amount of a specific hydrocarbon and a surfactant is blended, there is no problem of environmental pollution and toxicity, and excellent stain removability, and further The present invention has been completed by finding that a detergent composition having a good rinsing property can be obtained.
すなわち本発明は、炭素数8〜20であり、かつ20℃にお
ける粘度が0.5〜10cpであるアルキルベンゼン又はオレ
フィン50重量%以上及び界面活性剤0.01〜50重量%を含
有する洗浄剤組成物を提供するものである。That is, the present invention provides a detergent composition containing at least 50% by weight of an alkylbenzene or olefin having 8 to 20 carbon atoms and a viscosity of 0.5 to 10 cp at 20 ° C., and 0.01 to 50% by weight of a surfactant. It is a thing.
本発明に用いられるアルキルベンゼン又はオレフィンは
炭素数8〜20であり、かつ20℃における粘度が0.5〜10c
pであるものである。このアルキルベンゼン又はオレフ
ィンの炭素数が8未満であるか又は粘度が0.5cp未満で
あると、引火性が高く、洗浄時の安全性が問題となる。
一方、炭素数が20を超えるか又は粘度が10cpを超える
と、狭い隙間の洗浄が充分でなく好ましくない。特に好
ましい粘度範囲は0.5〜5cpである。The alkylbenzene or olefin used in the present invention has 8 to 20 carbon atoms and has a viscosity at 20 ° C. of 0.5 to 10 c.
that is p. If the alkylbenzene or olefin has a carbon number of less than 8 or a viscosity of less than 0.5 cp, the flammability is high and safety during cleaning becomes a problem.
On the other hand, if the carbon number exceeds 20 or the viscosity exceeds 10 cp, the cleaning of the narrow gap is not sufficient, which is not preferable. A particularly preferred viscosity range is 0.5-5 cp.
本発明において、アルキルベンゼン類としては、キシレ
ン、エチルベンゼン、ジイソプロピルベンゼン、クメ
ン、p−シメン等の各種直鎖アルキルベンゼン又は分岐
アルキルベンゼン等が挙げられ、オレフィンとしてはオ
クテン、デセン、ドデセン、テトラデセン、ヘキサデセ
ン、エイコセン、テトラプロピレン、テトライソブチレ
ン、ヘキサプロピレン等の直鎖又は分岐鎖のものが挙げ
られる。オレフィンは炭素数が12〜18のものが特に好ま
しい。In the present invention, the alkylbenzenes include various linear alkylbenzenes such as xylene, ethylbenzene, diisopropylbenzene, cumene, p-cymene, branched alkylbenzenes, etc., and the olefins include octene, decene, dodecene, tetradecene, hexadecene, eicosene, Examples thereof include linear or branched ones such as tetrapropylene, tetraisobutylene and hexapropylene. The olefin having 12 to 18 carbon atoms is particularly preferable.
これらのアルキルベンゼン又はオレフィンは本発明組成
物中に50重量%以上、好ましくは60〜68重量%配合され
る。50重量未満では洗浄性に劣るため好ましくない。These alkylbenzenes or olefins are incorporated in the composition of the present invention in an amount of 50% by weight or more, preferably 60 to 68% by weight. If it is less than 50% by weight, it is not preferable because the cleaning property is poor.
本発明に用いる界面活性剤としては、アニオン性、カチ
オン性、両性イオン性及び非イオン性界面活性剤のいず
れをも使用できるが、洗浄面への影響が少ないという点
で非イオン性界面活性剤が最もよい。具体的にはポリオ
キシアルキレンアルキルエーテル、ポリオキシアルキレ
ンアルキルフェノールエーテル、ポリオキシアルキレン
アルキル脂肪酸エステル、ポリオキシアルキレンアリル
フェノールエーテル、ポリオキシアルキレンソルビタン
脂肪酸エステル、ポリオキシアルキレンアルキルアミ
ン、ソルビタン脂肪酸エステル、ポリオキシアルキレン
等が好ましく、そのなかでも平均HLB4〜15の非イオン性
界面活性剤が特に優れた効果を発現する。ここで、ポリ
オキシアルキレンとは、エチレンオキサイド、プロピレ
ンオキサイド又はブチレンオキサイドの重合体のことを
いう。As the surfactant used in the present invention, any of anionic, cationic, zwitterionic and nonionic surfactants can be used, but the nonionic surfactant is less in effect on the cleaning surface. Is the best. Specifically, polyoxyalkylene alkyl ether, polyoxyalkylene alkylphenol ether, polyoxyalkylene alkyl fatty acid ester, polyoxyalkylene allylphenol ether, polyoxyalkylene sorbitan fatty acid ester, polyoxyalkylene alkylamine, sorbitan fatty acid ester, polyoxyalkylene Etc. Among them, nonionic surfactants having an average HLB of 4 to 15 exhibit particularly excellent effects. Here, polyoxyalkylene refers to a polymer of ethylene oxide, propylene oxide or butylene oxide.
界面活性剤の添加量としては0.01〜50重量%程度、特に
3〜40重量%が望ましい。0.01重量%未満では界面活性
剤を加えたことによる洗浄性の効果は発現せず、一方50
重量%を超えると界面活性剤が洗浄表面に残留して、洗
浄された部品の特性に影響を及ぼすことがある。The amount of the surfactant added is preferably about 0.01 to 50% by weight, particularly 3 to 40% by weight. If it is less than 0.01% by weight, the effect of detergency due to the addition of the surfactant does not appear.
If it exceeds 5% by weight, the surfactant may remain on the cleaning surface and affect the properties of the cleaned part.
また、本発明洗浄剤組成物には、その効果を損なわない
範囲で、必要に応じて更にエタノール、グリコール等の
各種アルコール;アセト酢酸、オレイン酸メチル、酢酸
ベンジル等のエステル;アミン、フェノール系の酸化防
止剤や腐食防止剤、水等を配合してもよい。Further, the cleaning composition of the present invention may further contain various alcohols such as ethanol and glycol; esters such as acetoacetic acid, methyl oleate, and benzyl acetate; You may mix | blend antioxidant, a corrosion inhibitor, water etc.
本発明の洗浄剤組成物は、常法により混合して製造する
ことができる。The detergent composition of the present invention can be produced by mixing by a conventional method.
本発明の洗浄剤組成物を用いて液晶の洗浄を行う方法は
特に限定されないが、例えば本発明洗浄組成物を用いて
超音波洗浄、浸漬洗浄し、最後に溶剤又は温水でリンス
する等の方法を連続的に行う方法等が、効率良い洗浄法
として挙げられる。また、振動法、スプレー法等の各種
の洗浄方法によってもよい。The method of cleaning the liquid crystal using the cleaning composition of the present invention is not particularly limited, for example ultrasonic cleaning using the cleaning composition of the present invention, immersion cleaning, and finally a method of rinsing with a solvent or warm water. A method of continuously performing the above is an efficient cleaning method. Further, various cleaning methods such as a vibration method and a spray method may be used.
以下、実施例を挙げて本発明を更に詳細に説明するが、
本発明はこれらに限定されるものではない。Hereinafter, the present invention will be described in more detail with reference to Examples.
The present invention is not limited to these.
実施例1 厚さ1.1mmのガラス板にスペーサーを設け、これにもう
一枚のガラス板をかぶせ、10〜20μの空隙をもつサンド
イッチ構造とし、この中に液晶(ZLI−1565,メルクジャ
ンパン社製)を入れ封じ、セルを作成する。Example 1 A glass plate having a thickness of 1.1 mm was provided with a spacer, and another glass plate was placed on the spacer to form a sandwich structure having a gap of 10 to 20 μm, and a liquid crystal (ZLI-1565, manufactured by Merck Jampin Co. Make a cell.
このセルを、第1表に示す洗浄液に、40℃で1分浸漬
し、次いで同液中で5分間超音波洗浄を行った。この
後、セルのガラス板上及びセル周囲の液晶の残着を偏光
顕微鏡により測定し、下記評価基準により洗浄性を評価
した。次に、洗浄液からセルを取り出し、40℃のイオン
交換槽に1分間浸漬し、リンス性を偏光顕微鏡により測
定し、下記評価基準により評価した。This cell was immersed in the cleaning solution shown in Table 1 at 40 ° C. for 1 minute, and then ultrasonically cleaned in the same solution for 5 minutes. Then, the residual liquid crystal on the glass plate of the cell and around the cell was measured with a polarizing microscope, and the cleaning property was evaluated according to the following evaluation criteria. Next, the cell was taken out from the cleaning liquid, immersed in an ion exchange tank at 40 ° C. for 1 minute, the rinsing property was measured with a polarizing microscope, and evaluated according to the following evaluation criteria.
これらの結果を第1表に示す。The results are shown in Table 1.
(評価基準) 液晶除去性 ◎:液晶残着なく非常に良好 ○:液晶残着がなくほとんど良好 △:液晶残着がわずかにあり、やや悪い ×:液晶が残着し悪い リンス性 ◎:非常に良好 ○:良好 △:やや劣る ×:悪い 〔発明の効果〕 本発明の洗浄剤組成物は、ガラス基板、治具、工具等に
付着した液晶又はこれを含む汚れに対し優れた洗浄力及
びリンス性を有し、更にフロン等を用いないため環境を
汚染せず安全性も高いものである。(Evaluation Criteria) Liquid crystal removability ◎: Very good with no liquid crystal residue ○: Almost good without liquid crystal residue △: Slightly poor liquid crystal residue, somewhat bad ×: Poor liquid crystal residue Rinse ◎: Very good Excellent: Good: Fair: Somewhat poor ×: Poor [Effects of the Invention] The cleaning composition of the present invention has excellent cleaning power and rinsing property against liquid crystal adhered to glass substrates, jigs, tools, etc. or stains containing it, and further does not use CFCs or the like. Therefore, it does not pollute the environment and is highly safe.
Claims (2)
粘度が0.5〜10cpであるアルキルベンゼン又はオレフィ
ン50重量%以上、及び界面活性剤0.01〜50重量%を含有
する液晶用洗浄剤組成物。1. A detergent composition for liquid crystals, containing 50% by weight or more of an alkylbenzene or olefin having 8 to 20 carbon atoms and a viscosity of 0.5 to 10 cp at 20 ° C., and 0.01 to 50% by weight of a surfactant. object.
面活性剤である請求項1記載の液晶用洗浄剤組成物。2. The cleaning composition for liquid crystals according to claim 1, wherein the surfactant is a nonionic surfactant having an average HLB of 4 to 15.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2181285A JPH0798959B2 (en) | 1990-07-09 | 1990-07-09 | Cleaning composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2181285A JPH0798959B2 (en) | 1990-07-09 | 1990-07-09 | Cleaning composition |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0468096A JPH0468096A (en) | 1992-03-03 |
JPH0798959B2 true JPH0798959B2 (en) | 1995-10-25 |
Family
ID=16098021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2181285A Expired - Lifetime JPH0798959B2 (en) | 1990-07-09 | 1990-07-09 | Cleaning composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0798959B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2893497B2 (en) * | 1992-04-30 | 1999-05-24 | 花王株式会社 | Cleaning composition for precision parts or jigs |
JP2652298B2 (en) * | 1992-04-30 | 1997-09-10 | 花王株式会社 | Cleaning composition for precision parts or jigs |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03212499A (en) * | 1990-01-18 | 1991-09-18 | Nippon Alpha Metals Kk | Detergent composition for liquid crystal part |
JPH03243700A (en) * | 1990-02-20 | 1991-10-30 | Nippon Oil & Fats Co Ltd | Detergent composition |
JPH03243699A (en) * | 1990-02-20 | 1991-10-30 | Nippon Oil & Fats Co Ltd | Detergent composition |
-
1990
- 1990-07-09 JP JP2181285A patent/JPH0798959B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0468096A (en) | 1992-03-03 |
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