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Kopplung/Rückkopplung/Entkopplung

English translation: coupling/recoupling/decoupling

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00:22 Dec 22, 2003
German to English translations [PRO]
Science / Hair Dye Chemistry
German term or phrase: Kopplung/Rückkopplung/Entkopplung
This is a chemical process related to (hair) colour strippers. I suspect it may have something to do with linking or cross-linking, the word bond (as in chemical bond) also springs to mind.

Dank der innovativen Formulierung ist es möglich, den Oxidationsprozess des Färbevorgangs zu konvertieren und so die Farbmoleküle zu entfernen, ohne dabei das natürliche Pigment anzugreifen. Das Produkt ist besonders wirksam für die vollständige oder teilweise Farbkorrektur.
XXX garantiert, dass das Haar in einem einwandfreien Zustand bleibt.

1. Gefärbtes Haar Das Bild zeigt ein gefärbtes Haar. Die gekoppelten Pigmente sind deutlich zu erkennen.

2. Rück-Kopplung Während der Einwirkzeit von XXX findet eine Rück-Kopplung statt.

3.Gut Ausspülen Nach Ablauf der Einwirkzeit muss das Haar sehr gründlich ausgespült werden, damit die entkoppelten Pigmente aus dem Haar herausgewaschen werden.

4. Kontrollspülung mit XXX Die Kontrollspülung mit XXX ist Voraussetzung für einen erfolgreichen Farbabzug. Sie erkennen sofort, ob noch Pigmente im Haar vorhanden sind, die bei einer anschließenden Färbung zu "bösen Überraschungen" führen könnten.

Thanks in advance!
Sarah Downing
Local time: 19:58
English translation:coupling/recoupling/decoupling
Explanation:
When the hair is dyed the pigment molecule is coupled to a certain chemical group on the hair. When destripping, this chemical bond has to be cleaved to decouple the pigment.

While XXX is working, the pigment is still able to recouple to the hair - backcoupling, the usual meaning of this word, does not seem to be correct


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Note added at 6 hrs 8 mins (2003-12-22 06:31:33 GMT)
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destripping? should be stripping

BTW, Cross-linking occurs in polymers, and is an irreversible reaction which \"locks\" the polymer structure. It does not occur in hair.
Selected response from:

Gillian Scheibelein
Germany
Local time: 01:58
Grading comment
Well Gillian wins hands down and thanks to Wolf too for your agree. I'm so happy as I've just sent off the job in addition to another mega last-minute mega job that was for today. Now, I'm ready to get into the Christmas spirit. Merry Christmas one and all!!:-))
4 KudoZ points were awarded for this answer

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Summary of answers provided
4 +1coupling/recoupling/decoupling
Gillian Scheibelein


  

Answers


5 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +1
Kopplung/Rückkopplung/Entkopplung
coupling/recoupling/decoupling


Explanation:
When the hair is dyed the pigment molecule is coupled to a certain chemical group on the hair. When destripping, this chemical bond has to be cleaved to decouple the pigment.

While XXX is working, the pigment is still able to recouple to the hair - backcoupling, the usual meaning of this word, does not seem to be correct


--------------------------------------------------
Note added at 6 hrs 8 mins (2003-12-22 06:31:33 GMT)
--------------------------------------------------

destripping? should be stripping

BTW, Cross-linking occurs in polymers, and is an irreversible reaction which \"locks\" the polymer structure. It does not occur in hair.

Gillian Scheibelein
Germany
Local time: 01:58
Native speaker of: Native in EnglishEnglish
PRO pts in pair: 3469
Grading comment
Well Gillian wins hands down and thanks to Wolf too for your agree. I'm so happy as I've just sent off the job in addition to another mega last-minute mega job that was for today. Now, I'm ready to get into the Christmas spirit. Merry Christmas one and all!!:-))

Peer comments on this answer (and responses from the answerer)
agree  Wolf Brosius: You are absolutely right.Als alter Bayermann traten mir die Tränen in die Augen.Wir spechen hier von Diazoniumverbindungen aus dem vorletzten Jahrhundert.
1 hr
  -> Hi Wolf, just goes to show that some things can't be improved so easily. Happy Christmas to R.S.A.
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