Preparation method and application of aqueous split leather
A two-layer leather, water-based technology, applied in textiles and papermaking, etc., can solve the problems of poor hydrolysis and aging resistance, low peel strength, and limitations, and achieve the effects of simple coating operation, improved peel strength, and safety issues
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Embodiment 1
[0031] Based on regenerated leather.
[0032] Step 1: Prepare water-based resin primer slurry and paint the bottom layer
[0033] 1. Ingredients
[0034] Weigh 100 parts by mass of one-liquid water-based PU resin, 2 parts by mass of water-soluble powder, 1 part by mass of silicone hand feeling agent, 2 parts by mass of silicone wetting and leveling agent, 3 parts by mass of filler, and 1 part by mass of water-based defoamer , 0.5 parts by mass of water-based color paste, prepared as a mixed slurry for use;
[0035] 2. Roller coating:
[0036] Coating weight is 40g / m 2 , the thickness of the coating film is 4 microns, and the number of coating times is one time.
[0037] 3. Drying: Just blow dry with warm air.
[0038] Step 2: Prepare water-based resin foam layer slurry and paint the foam layer to obtain a semi-finished product
[0039] 1. Ingredients
[0040] Weigh 100 parts by mass of one-liquid water-based PU resin, 2 parts by mass of water-soluble powder, 1 part by m...
Embodiment 2
[0054] Based on split leather
[0055] Step 1: Prepare water-based resin primer slurry and paint the bottom layer
[0056] 1. Ingredients
[0057] Weigh 100 parts by mass of one-liquid water-based PU resin, 5 parts by mass of water-soluble powder, 10 parts by mass of filler, and 2 parts by mass of water-based color paste, and prepare a mixed slurry for use;
[0058] 2. Roller coating:
[0059] The coating weight is 60g / m 2 , the thickness of the coating film is 6 microns, and the number of coating times is three times. The re-coating needs to be carried out after the previous slurry is dried.
[0060] 3. Drying: Just blow dry with warm air.
[0061] Step 2: Prepare water-based resin foam layer slurry and paint the foam layer to obtain a semi-finished product
[0062] 1. Ingredients
[0063] Weigh 100 parts by mass of one-liquid water-based PU resin, 5 parts by mass of water-soluble powder, 20 parts by mass of filler, and 2 parts by mass of water-based color paste, and pr...
Embodiment 3
[0077] Based on regenerated leather.
[0078] Step 1: Prepare water-based resin primer slurry and paint the bottom layer
[0079] 1. Ingredients
[0080] Weigh 100 parts by mass of one-liquid water-based PU resin, 4 parts by mass of water-soluble powder, 1 part by mass of silicone hand feeling agent, 1 part by mass of silicone wetting and leveling agent, 6 parts by mass of filler, and 1 part by mass of water-based defoamer , 1 mass part of water-based color paste, prepared as a mixed slurry for use;
[0081] 2. Roller coating:
[0082] Coating amount is 50g / m 2 , the thickness of the coating film is 5 microns, and the number of coatings is two times. The second coating should be carried out after the previous slurry is dried.
[0083] 3. Drying: Just blow dry with warm air.
[0084] Step 2: Prepare water-based resin foam layer slurry and paint the foam layer to obtain a semi-finished product
[0085] 1. Ingredients
[0086] Weigh 100 parts by mass of one-liquid water-ba...
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