Grain leather coating method with fish scale as coating agent raw material and obtained grain leather product
A finishing agent and front leather technology, which is applied in small raw hide/big raw hide/leather/fur treatment, small raw hide/big raw hide/leather skin/fur chemical treatment, coating, etc., which can solve the problem of large environmental pollution and weak adhesion , low gloss and other problems, to achieve the effect of less environmental pollution, strong adhesion and high gloss
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Embodiment 1
[0037]According to the mass ratio of 1:10, fish scales were delimed with a hydrochloric acid solution with a mass fraction of 2% at 60°C for 3 hours to obtain delimed fish scales; Pepsin was extracted and reacted at pH 2 and 40°C for 1 hour, and the obtained liquid was dried to obtain a film-forming agent; the obtained film-forming agent was mixed with amaranth and water at a mass ratio of 1:0.3:15 to obtain Finishing agent: Spray the finishing agent on the smooth surface of the sheep's front leather and use 800 watts of microwaving to carry out microwave drying for 2 hours to obtain the first-time finishing front leather; the smooth surface of the resulting first-time finishing front leather is sprayed again with the finishing agent , and dried at 50°C for 6 hours to obtain a sheep face leather product, the gloss value and adhesion are shown in Table 1.
Embodiment 2
[0039] According to the mass ratio of 1:100, fish scales were delimed with a sulfuric acid solution with a mass fraction of 15% at 50°C for 1 hour to obtain delimed fish scales; Pepsin was extracted and reacted at pH 1 and 30°C for 30 minutes, and the obtained liquid was dried to obtain a film-forming agent; the obtained film-forming agent was mixed with tartrazine and water at a mass ratio of 1:2:20 to obtain Finishing agent: Spray the finishing agent on the smooth surface of the cow's front leather and use a 600-watt microwave to dry it in microwave for 6 hours to obtain the first-time finishing front leather; the smooth surface of the resulting first-time finishing front leather is sprayed again with the finishing agent , and dried at 80°C for 3 hours to obtain a bovine front leather product, the gloss value and adhesion are shown in Table 1.
Embodiment 3
[0041] According to the mass ratio of 1:200, fish scales were delimed with a phosphoric acid solution with a mass fraction of 7% at 80°C for 5 hours to obtain delimed fish scales; Pepsin was extracted and reacted at pH 3 and 40°C for 3 hours, and the obtained liquid was dried to obtain a film-forming agent; the obtained film-forming agent was mixed with brilliant blue and water at a mass ratio of 1:1:5 to obtain Finishing agent: Spray the finishing agent on the smooth surface of the pig face leather and use 400 watts of microwaving to carry out microwave drying for 12 hours to obtain the first-time finishing front leather; the smooth surface of the resulting first-time finishing front leather is sprayed again with the finishing agent , and dried at 60°C for 4 hours to obtain a pig face leather product, the gloss value and adhesion are shown in Table 1.
[0042] From the data of Examples 1-3 and Table 1, it can be seen that the front leather products obtained by the finishing m...
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