[Nhcoll-l] Thermal label problems

Wed Jun 1 09:57:55 EDT 2016

... interesting note on the DEET - never thought of this.
Thanks for sharing, Chris!

Best wishes
Dirk

Am 01.06.2016 um 15:49 schrieb Christine Johnson:
>
> Hi Jon,
>
> We too had a one-time issue with the ink having come off of a few 
> labels in a loan return of specimens in 75% ethanol.
>
> We never were able to pinpoint exactly the issue, as it only seemed to 
> be these few vials, whereas the other vials in this loan return were 
> completely unaffected.
>
> However, there are solvent/surfactant products that will cause the ink 
> to dissolve, disintegration, smear, fall off.
>
> These are:
>
> -Industrial surfactants (Aerosol OT & Contrad) using in /specimen 
> rehydration/. So if there is residue of these surfactants in/on the 
> specimens, this may/will cause the label to fail. This might be 
> avoided if specimens are rinsed well.
>
> -Methyl ethyl ketone (butanone) or MEK
>
> -Glacial Acetic Acid (3 mol)
>
> -DEET (so if you are in the field and have DEET on your hands, you 
> might not want to handle the labels)
>
> Make sure to use Thermal Transfer SDR ribbon (not SDRa). I am still 
> using an old SATO M-84Pro printer and get the paper (polytag) and SDR 
> ribbon from Alpha Systems, and outside these very few vials, we’ve not 
> had a problem.
>
> Chris
>
> //
>
> Chris Andrea Johnson, Ph.D. 
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.amnh.org_our-2Dresearch_staff-2Ddirectory_christine-2Djohnson&d=AwMGaQ&c=-dg2m7zWuuDZ0MUcV7Sdqw&r=CLFZJ3fvGSmDp7xK1dNZfh6uGV_h-8NVlo3fXNoRNzI&m=onn28f1vHS0iWRoTybJFfCVjEvhlTRClmDxYeLbQYl4&s=Fv8B4Ag0zT5x9id9IiwkPTX-g8kzMcN7MOHavilaAVM&e=>
>
> Curatorial Associate
>
> American Museum of Natural History 
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>
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>
> *From:*nhcoll-l-bounces at mailman.yale.edu 
> [mailto:nhcoll-l-bounces at mailman.yale.edu] *On Behalf Of *Jon Fong
> *Sent:* Friday, May 27, 2016 4:03 PM
> *To:* nhcoll-l at mailman.yale.edu
> *Subject:* [Nhcoll-l] Thermal label problems
>
> We are having a label printer problem that supposedly no one else has, 
> so I'm asking around to see if it really is only us, or whether that 
> no one else has noticed.
>
> The problem is that we are able to scrape off the ink with a 
> fingernail from our thermal transfer labels after they've been soaked 
> in ethanol for a few minutes. We're using a relatively new Datamax 
> H-4408, with supposedly chemical-resistant resin ribbon, and polyester 
> paper. This shouldn't happen, and I know that we've been able to 
> successfully print labels where we couldn't scratch off the ink. With 
> this printer.  But it keeps recurring, and we don't know whether it's 
> the supplier (Alpha Systems), the manufacturer, our printer (lemon? 
> doubtful, it's the second one), or us. Please answer this quick survey.
>
>  1. With a recently printed label, soaked in ethanol for a few
>     minutes, are you able to scratch off ink with your fingernail?
>  2. What make/model of printer do you use?
>  3. What are the heat and print speed settings on the printer?
>  4. Which ribbon and paper do you use?
>  5. Who do you order your supplies from?
>  6. We've also had problems with fine white threads coming off the
>     polyester paper and clogging the print head. Anyone else
>     experience this?
>
> Thanks for your time,
>
> Jon
>
> *Jon D. Fong**
> *Curatorial Assistant / Programmer
> Dept. of Ichthyology
> California Academy of Sciences
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