לֹֽ֣א יִהְיֶֽה־לְךָ֛֩ אֱלֹהִ֥֨ים אֲחֵרִ֖֜ים עַל־פָּנָֽ֗יַ
Noda BiYhudah I
In the case of that which hardens occasionally, how does a repeat blackening change things? The initial dyeing on the straps ‘blocks’ the next coating and forms a partition between it and the strap?