USE OF REACTIVE CROSS-LINKING AGENTS FOR PROTEIN-CONTAINING SUBSTRATES AND PROCESSES FOR TANNING AND DYEING OF LEATHER
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United States of America Patent
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Issued Date -
Feb 15, 2024
app pub date -
Dec 21, 2021
filing date -
Dec 23, 2020
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Abstract
The present invention relates to the use of reactive colourless and metal-free protein cross-linking agents for the cross-linking (tanning) of protein-containing substrates, said agents are environmentally friendly and give an improved fixation yield, a long-term cross-linking (tanning) stability and good washing off properties. The present invention further relates to processes for the cross-linking (tanning) of protein-containing substrates thereby creating an environmentally friendly process which minimizes the use of chemicals and further improves the quality and efficiency of the tanning and dyeing process.
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