JPS6250490A - Method for cleaning silver or silver plated product - Google Patents
Method for cleaning silver or silver plated productInfo
- Publication number
- JPS6250490A JPS6250490A JP18847685A JP18847685A JPS6250490A JP S6250490 A JPS6250490 A JP S6250490A JP 18847685 A JP18847685 A JP 18847685A JP 18847685 A JP18847685 A JP 18847685A JP S6250490 A JPS6250490 A JP S6250490A
- Authority
- JP
- Japan
- Prior art keywords
- silver
- cleaning
- parts
- flon
- solvent
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
- C23G5/028—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons
- C23G5/02809—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons containing chlorine and fluorine
- C23G5/02825—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons containing chlorine and fluorine containing hydrogen
- C23G5/02829—Ethanes
- C23G5/02835—C2H2Cl2F2
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
- C23G5/028—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons
- C23G5/02809—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons containing chlorine and fluorine
- C23G5/02825—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons containing chlorine and fluorine containing hydrogen
- C23G5/02829—Ethanes
- C23G5/02832—C2H3Cl2F
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、銀もしくは銀メツキ製品の洗浄方法に関する
。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for cleaning silver or silver-plated products.
銀は４電性および耐食性がよいために、高性能を要求さ
れる電子部分に多用されている。友とえば、ＬＳＩ用の
リードフレームに＃ｉ、その重要部分に銀メッキしたも
のが使われる。このリードフレームは、一般的に部分的
に銀メッキし友板をプレスで型抜きして得られるが、そ
の時、付着するプレス加工油は洗浄によって除かれる。Because silver has good tetraelectricity and corrosion resistance, it is widely used in electronic parts that require high performance. For example, #i is used for LSI lead frames, with important parts plated with silver. This lead frame is generally obtained by partially silver-plating a plate and cutting it out using a press. At that time, the press processing oil that adheres to the lead frame is removed by washing.
（従来の技術）
プレス加工油の洗浄は、一般にアルカリ水か有機溶剤に
よって行われるが、アルカリ水の使用は。(Prior Art) Press processing oil is generally cleaned with alkaline water or an organic solvent, but the use of alkaline water is difficult.
廃水処理等に費用がか＼る友め、近年はもっばら有機溶
剤による洗浄が中心となっている。このような目的で用
りられる有機溶剤としては、安全性の点から、引火性の
ないトリクロロエチレン、メチレンクロライに’ｈ
’、１ｓ１ ）！Ｊジクロロタン等の塩素化炭化水素
や１，１．２−）ＩＪフロロー１．２．２−）ジクロロ
エタン等の弗素化炭化水素等がある。Due to the high cost of wastewater treatment, cleaning with organic solvents has become the norm in recent years. From the viewpoint of safety, the organic solvents used for this purpose include non-flammable trichlorethylene and methylene chloride.
', 1s1)! Examples include chlorinated hydrocarbons such as J dichlorothane and fluorinated hydrocarbons such as 1,1.2-) IJ Fluoro 1.2.2-) dichloroethane.
（発明が解決しようとする問題点）
しかし、従来の塩素化炭化水素系溶剤は、洗浄条件によ
っては、しばしば銀もしくは銀メッキ製品を変色させる
とｂう欠点があり、弗素化炭化水素系溶剤は洗浄力が弱
く、洗浄時間が長くなるという欠点がある。(Problems to be Solved by the Invention) However, conventional chlorinated hydrocarbon solvents have the disadvantage that they often discolor silver or silver-plated products depending on the cleaning conditions. The disadvantage is that the cleaning power is weak and the cleaning time is long.
（問題点を解決する之めの手段）
本発明者らは、このような欠点を解決しようとして極々
検討を行なった結果、洗浄力が強く、銀もしくは銀メッ
キ表品を変色させない洗浄溶剤を見出し、本発明に到達
した。すなわち１本発明は、（１１１、１−ジクロロ−
１，２−ジクロロエタン（以下、フロン１５２ｂという
）もしくは１．２−ジクロロ−１−フロロエタン（以下
、フロン１４１という）、またはｆ２） （ａ）フロン
１３２ｂもしくはフロン１４１と、（ｂ）エタノール、
プロパノール、イングロバノール、ブタノール、インブ
タノール、第３級ブタノール、アセトニトリル、ニトロ
メタン、酢酸メチル、酢酸エチルよシ選ばれる１種以上
とからなる混合溶剤で洗浄することｆｔ！徴とする銀も
しくは銀メッキ表品の洗浄方法を与える。(Means for Solving the Problems) As a result of extensive research in an attempt to solve these drawbacks, the inventors of the present invention have discovered a cleaning solvent that has strong cleaning power and does not discolor silver or silver-plated surfaces. , arrived at the present invention. That is, 1 the present invention provides (111, 1-dichloro-
1,2-dichloroethane (hereinafter referred to as Freon 152b) or 1,2-dichloro-1-fluoroethane (hereinafter referred to as Freon 141), or f2) (a) Freon 132b or Freon 141, (b) ethanol,
Cleaning with a mixed solvent consisting of one or more selected from propanol, inbanol, butanol, imbutanol, tertiary butanol, acetonitrile, nitromethane, methyl acetate, and ethyl acetate.ft! Provides methods for cleaning silver or silver-plated surfaces.
フロン１５２ｂもしくはフロン１４１に混合される上述
の溶剤は、一般にプレス加工油の洗浄性を高めるが、そ
の混合割合は１通常、全体量の６０重量％以下である。The above-mentioned solvent mixed with Freon 152b or Freon 141 generally improves the cleaning properties of press processing oil, but the mixing ratio thereof is usually 60% by weight or less of the total amount.
それらが３０ｉ量係より多くなるときは、溶剤の引火性
が増す等の弊害が生じ、あまり得策ではない。まｆｃ１
溶剤の安定性を改良し九シ、共沸性を改良する等の他の
目的の几めに、１．２−ブチレンオキシドやアミン類や
酸化防止剤や炭化水素類をさらに混合させることもでき
る。When the amount exceeds 30i, problems such as increased flammability of the solvent occur, which is not a good idea. Mafc1
1,2-Butylene oxide, amines, antioxidants, and hydrocarbons can be further mixed for other purposes such as improving the stability of the solvent and improving the azeotropy. .
本発明の方法は、通常行なわれる浸漬洗浄、蒸気洗浄５
超音波洗浄、スプレー洗浄等に適用できる。具体的にそ
の洗浄方法の一例を示すと、プレス油の付着し友銀メッ
キ裂の被先物を３５Ｇの洗浄溶剤中に浸漬し、超音波を
かけながら２分間処理し、次いで、１５Ｃの同じ洗浄溶
剤中に２分間浸漬し、最後に沸騰している洗浄溶剤の蒸
気中に曝し、被先物表面上で洗浄溶剤蒸気の凝縮が停止
するまで処理する。The method of the present invention can be applied to conventional immersion cleaning, steam cleaning,
Applicable to ultrasonic cleaning, spray cleaning, etc. To give a specific example of the cleaning method, a future object with press oil adhering to it and a cracked silver plating is immersed in a 35G cleaning solvent, treated with ultrasonic waves for 2 minutes, and then subjected to the same cleaning with 15C. Immersion in the solvent for 2 minutes and final exposure to boiling cleaning solvent vapors until condensation of the cleaning solvent vapors on the surface of the future article has ceased.
（実施例）
以下に実施例によって具体的に丞す。本発明の効果およ
び比較を明らかＫする九め、実施例中の試験は１次の試
験法によって行なわれるが、本試験法は、実際の洗浄方
法もしくは洗浄条件と必ずしも一致すべきものではない
。(Example) Examples will be described in detail below. Ninth, to clearly demonstrate the effects and comparisons of the present invention, the tests in the Examples are conducted using the primary test method, but this test method should not necessarily match the actual cleaning method or conditions.
（変色試験）
銅板にニッケルメッキし友ものに、さらに部分的に釧メ
ッキしｔＩＣ用リードフレームをプレス加工油の付いた
１ま、洗浄溶剤中に浸漬して密封し、６０Ｃで２０時間
加熱する。その後、液中よりリードフレーム？取り出し
て風乾し、その銀メツキ部分の変色４１察する。(Discoloration test) Copper plate is nickel-plated and then partially plated with tassel.The lead frame for tIC is immersed in press processing oil for 1 hour, then immersed in cleaning solvent, sealed, and heated at 60C for 20 hours. . After that, lead frame from liquid? Take it out and air dry it, and check for discoloration of the silver plating part.
（洗浄試験）
プレス加工油の付いた前述リードフレーム片を５枚重ね
て密着させ、洗浄溶剤中に浸漬して、３０Ｃで超音波を
照射する。一定時間後取り出して、付着しているプレス
油の残存率を重ｆｉ％で求めて、洗浄力の評価とする。(Cleaning test) Five pieces of the above-mentioned lead frame with press processing oil were stacked and brought into close contact, immersed in a cleaning solvent, and irradiated with ultrasonic waves at 30C. After a certain period of time, the sample is taken out and the residual rate of the attached press oil is determined in terms of weight fi% to evaluate the detergency.
実施例および比較例１ 表１に示す組成の洗浄解削を用いて変色試験を行なう。Example and comparative example 1 A discoloration test is conducted using a cleaning solution having the composition shown in Table 1.
結果を同じく表１に示す。なお、表中のチは全て重量％
を示す。The results are also shown in Table 1. All numbers in the table are weight%.
shows.
実施例および比較例２ 表２に示す組成の洗浄溶剤を用いて洗浄試験を行なう。Example and comparative example 2 A cleaning test is conducted using a cleaning solvent having the composition shown in Table 2.
結果を同じく表２に示す。なお、表中のチは全て重ｉ′
チを示す。The results are also shown in Table 2. In addition, all Q in the table are weight i'
Indicates the
（発明の効果）
このように、本発明の方法は、明らかに苛酷な条件下で
も、銀もしくは銀メッキ製品の変色を起さない優れた洗
浄方法であることを示す。(Effects of the Invention) As described above, the method of the present invention is clearly shown to be an excellent cleaning method that does not cause discoloration of silver or silver-plated products even under severe conditions.
”：’！４’−１）、・′”:’!4’-1),・’
Claims (1)
くは１，２−ジクロロ−１−フロロエタン、または（２
）（ａ）１，１−ジフロロ−１，２−ジクロロエタンも
しくは１，２−ジクロロ−１−フロロエタンと、（ｂ）
エタノール、プロパノール、イソプロパノール、ブタノ
ール、イソブタノール、第３級ブタノール、アセトニト
リル、ニトロメタン、酢酸メチル、酢酸エチルより選ば
れる１種以上とからなる混合溶剤で洗浄することを特徴
とする銀もしくは銀メッキ製品の洗浄方法。(1) 1,1-difluoro-1,2-dichloroethane or 1,2-dichloro-1-fluoroethane, or (2
) (a) 1,1-difluoro-1,2-dichloroethane or 1,2-dichloro-1-fluoroethane; and (b)
Silver or silver-plated products characterized by being cleaned with a mixed solvent consisting of one or more selected from ethanol, propanol, isopropanol, butanol, isobutanol, tertiary butanol, acetonitrile, nitromethane, methyl acetate, and ethyl acetate. Cleaning method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18847685A JPS6250490A (en) | 1985-08-29 | 1985-08-29 | Method for cleaning silver or silver plated product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18847685A JPS6250490A (en) | 1985-08-29 | 1985-08-29 | Method for cleaning silver or silver plated product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6250490A true JPS6250490A (en) | 1987-03-05 |
Family
ID=16224391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18847685A Pending JPS6250490A (en) | 1985-08-29 | 1985-08-29 | Method for cleaning silver or silver plated product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6250490A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5114609A (en) * | 1989-01-13 | 1992-05-19 | Kali-Chemie Ag | Cleaning compositions |
| US6165284A (en) * | 1998-06-25 | 2000-12-26 | Albemarle Corporation | Method for inhibiting tarnish formation during the cleaning of silver surfaces with ether stabilized, N-propyl bromide-based solvent systems |
| US8021490B2 (en) | 2007-01-04 | 2011-09-20 | Eastman Chemical Company | Substrate cleaning processes through the use of solvents and systems |
| JP2013155227A (en) * | 2012-01-27 | 2013-08-15 | Three M Innovative Properties Co | Dust removal cleaning liquid, and cleaning method using the same |
-
1985
- 1985-08-29 JP JP18847685A patent/JPS6250490A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5114609A (en) * | 1989-01-13 | 1992-05-19 | Kali-Chemie Ag | Cleaning compositions |
| US6165284A (en) * | 1998-06-25 | 2000-12-26 | Albemarle Corporation | Method for inhibiting tarnish formation during the cleaning of silver surfaces with ether stabilized, N-propyl bromide-based solvent systems |
| US8021490B2 (en) | 2007-01-04 | 2011-09-20 | Eastman Chemical Company | Substrate cleaning processes through the use of solvents and systems |
| JP2013155227A (en) * | 2012-01-27 | 2013-08-15 | Three M Innovative Properties Co | Dust removal cleaning liquid, and cleaning method using the same |
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