Low-VOC leather
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United States of America Patent
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Nov 22, 2011
Grant Date -
Nov 11, 2010
app pub date -
Dec 26, 2008
filing date -
Dec 28, 2007
priority date (Note) -
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Abstract
A natural leather is treated with a tanning agent, a re-tanning agent, a dye and a greasing agent, wherein a treatment agent for inhibiting the generation of formaldehyde and acetaldehyde from the natural leather is added to the greasing step so that the natural leather is impregnated with the treatment agent. The treatment agent includes a hydrazide compound optionally together with sodium hydrogen sulfite.
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Cited Art Landscape
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