A kind of preparation method of sofa leather
A leather and sofa technology, applied in the field of sofa leather preparation, can solve the problems of soft texture of sofa leather, affect the comfort of sofa use, reduce the service life of sofa, etc., achieve the effects of soft texture, improved aesthetics and guaranteed quality
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[0008] What this application proposes is a preparation method of sofa leather, which includes the following steps: Step 1: select a whole piece of antelope skin, immerse the antelope skin in water with additives and stir it, and heat it during the stirring process. The heating temperature is 30 ℃~50℃, the stirring time is 1~3 hours; Step 2: take out the whole antelope skin, dry it in the air, wrap it with lime powder, then put the antelope skin wrapped in lime powder at a concentration of 20~50g / Soak in L of sodium sulfide solution for 5 to 10 hours; step three: depilate and expand, put the soaked antelope skin into a dehydrator for dehydration, and use a mechanical arm to take out the wool from the dehydrated antelope skin; step four: remove the processed antelope skin Put the antelope skin into water for heating, the heating temperature is 30°C-50°C, add 0.1%-0.3% hydrochloric acid, 1%-3% ammonium chloride into the water, soak for 1-2 hours, and adjust the pH to 8-3%. 10; S...
Embodiment 1
[0011] A method for preparing sofa leather, comprising the following steps: Step 1: select a whole piece of antelope skin, immerse the antelope skin in water added with additives and stir, and heat during the stirring process. The heating temperature is 30°C, and the stirring time is 1 hour; step 2: take out the whole antelope skin, dry it, wrap it with lime powder, and then soak the antelope skin wrapped in lime powder in a sodium sulfide solution with a concentration of 20 / L for 5 hours; step 3 : Depilation and expansion, put the soaked antelope skin into a dehydrator for dehydration, and use a mechanical arm to take out the wool from the dehydrated antelope skin; Step 4: Put the treated antelope skin into water for heating, the heating temperature is 3°C, Add 0.1% hydrochloric acid and 1% ammonium chloride to the water, soak for 1 hour, and adjust the pH to 8; Step 5: Put the processed antelope skin into water for heating at a temperature of 3°C, and add pancreas to the wate...
Embodiment 2
[0013] A method for preparing sofa leather, comprising the following steps: Step 1: select a whole piece of antelope skin, immerse the antelope skin in water added with additives and stir, and heat during the stirring process. The heating temperature is 40°C, and the stirring time is 2 hours; Step 2: Take out the whole antelope skin, dry it, wrap it with lime powder, and then soak the antelope skin wrapped in lime powder in a sodium sulfide solution with a concentration of 30g / L for 8 hours; Step 3 : Depilation and expansion, put the soaked antelope skin into a dehydrator for dehydration, and use a mechanical arm to take out the wool from the dehydrated antelope skin; Step 4: Put the treated antelope skin into water for heating, the heating temperature is 45°C, Add 0.2% hydrochloric acid and 2% ammonium chloride to the water, soak for 1.5 hours, and adjust the pH to 9; Step 5: put the treated antelope skin into water for heating, the heating temperature is 45°C, add pancreas to...
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Abstract
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