Ogata, Koki published the artcilePilot production of chrome-tanned leather without formation of hexavalent chromium by treatment with a combination of inhibitors, Related Products of ethers-buliding-blocks, the main research area is ascorbic acid inhibitor chrome tanned leather phys mech property.
A combination of inhibitors, namely a mixture of 1.0mmol of 3(2)-t-butyl-4-hydroxyanisole, 0.01 mmol of ascorbic acid, and 0.001mmol of collagen peptide exhibiting complete inhibition of C6+ formation on a laboratory-scale, was applied to produce chrome-tanned upper leather without formation of Cr6+ in the actual manufacturing line of a tanner. In this study, the following two methods were used for application of the combined inhibitor; (1) spraying with the combined inhibitor solution before finishing, using twice the volume of the dry leather weight after fat-liquoring; and (2) coating with base-coat containing the combined inhibitor before top coating in the finishing process, using twice the volume of the dry leather weight Each inhibitor-treated leather contained chem. components similar to those of typical leather produced without the combined inhibitor, and exhibited perfect inhibition of Cr6+ formation, even if heat-aged. In addition, the phys. strength of the inhibitor-treated leathers was higher than that of leather produced usually without inhibitor. In particular, the surface strength (ball burst) of the treated leathers was twice that of the untreated leather. These results indicate that this combination of inhibitors could be effectively applied to industrially produce Cr-tanned leather not only without C6+ formation but also with an improved phys. strength.
Journal of the Society of Leather Technologists and Chemists published new progress about Adhesion, physical. 121-00-6 belongs to class ethers-buliding-blocks, name is 4-Hydroxy-3-tert-butylanisole, and the molecular formula is C11H16O2, Related Products of ethers-buliding-blocks.
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem