Manufacturing method of high-assignment secondary over-dyed frosted leather
A production method and value-assigning technology, which is applied in dyeing, leather dipping, small leather/big leather/leather/fur treatment, etc., to achieve excellent air permeability, improve the flatness and embossing of the leather surface, and increase the bursting strength. Effect
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[0021] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific examples.
[0022] The invention discloses a method for making high-value secondary over-dyeing nubuck leather, which comprises a material preparation process, a retanning process, a neutralization process, a filling dyeing process, a fatliquoring and re-dyeing process, an acid fixing process, a primary drying process, and a grinding process, which are carried out sequentially. Leather process, secondary coloring process, secondary drying process and surface coating process, etc. Among them, the material preparation process (including the steps of material preparation, water squeezing, shaving and weighing), acid fixation process, primary drying process, secondary drying process and surface coating process are all conventional processes, and conventional operations known in the industry can be adopted. , which will not be ...
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