Low-VOC leather

Details Low-VOC leather Low-VOC leather

2008-12-26

2011-11-22

Khan, Amina (Department: 1764)

Compositions

Leather or fur treating

C297S219120

Reexamination Certificate

active

08062540

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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Yoshimura, et al., Studies on Hormaldehyde in Leathers and Leather Goods (2) Examination of Methods for Removing Extractable Formaldehyde From Leathers, Hikaku Kagaku (Leather Chemistry), Feb. 1989, p. 177, vol. 34, No. 4, Japanese Association of Leather Technology, Tokyo Noko University, Fuchu-shi, Tokyo, Japan.

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