gummed paper tape

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preservator

SGF, Supreme Grumble Framer
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Mar 23, 2001
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Wilmington, DE
Another peril associated with the use of gummed paper tape on works of art has recently come to light. Works that had such hinging were being treated by a conservator, who noticed that the paper used to make that tape had optical brighteners in it, that had migrated into the art. Optical brighteners are added to a wide variety of things, from laundry soap to candy and they respond to UV light and make things look whiter than white. As they age, they begin to break down and will eventually reflect visible light, causing stains. Gummed paper tapes are fine for use around art, but not for use on it.

Hugh
 
Does Lineco's Hayaku "gummed" Japanese Hinging Paper fall into the same category of "gummed" paper tapes you are talking about?
Ruth
 
The tape you mentioned is made on Japanese tissue
which would not have optical brighteners. The term "gummed" is generally applied to tapes that
have a modified starch = dextrin adhesive ( as
does linen tape and as stamps did) and their's
does not, so it should not be considered a
"gummed" tape.

Hugh
 
So gum linen tape which is acid free that is sold to the framing industry should not be used to hinge the art work or photo's only the mat? Correct?
 
Correct. Linen tape is ideal for spining window
mats to back mats, but of the strength of its cloth and the aggressivness of its adhesive (which make it so good for mat spines) make it too
strong and penetrating for use on papers which
must be hinged.

Hugh
 
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