Method for preparing semi-chrome tanning addition agent through waste chrome shavings and application method of semi-chrome tanning addition agent
A technology of tanning auxiliaries and leather shavings, which is applied in the field of utilization of tanning waste resources, can solve problems such as environmental pollution, resource waste, and difficult disposal, and achieve the effects of solving difficult processing, saving tanning costs, and improving absorption rate
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[0023] The implementation of the present invention will be described in detail below in conjunction with specific examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art, and the reagents and products used are also commercially available. Various processes and methods that are not described in detail are conventional methods known in the art. The waste leather shavings used in the present invention are the waste leather shavings produced after Xingye Leather Technology Co., Ltd. tanning, and the reagents used are Commonly used reagents are commercially available.
[0024] An application method of a chrome-less tanning auxiliary prepared by utilizing waste leather shavings, comprising the steps of:
[0025] Step 1, using waste l...
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