Mosquito-repellent and anti-mite cowhide mat and production method thereof
A technology for preventing mosquitoes and mites and cowhide, applied in the field of functional natural leather, can solve the problems of insufficient repellent and anti-mite performance of cowhide mats.
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[0053] In the preparation method of the mosquito repellent and anti-mite cowhide mat provided by the present invention, in the process of obtaining the foam slurry by stirring in the step 3) of the preparation of the foam layer, it is necessary to stir evenly under the condition of low-speed operation, and adjust the foam slurry Excellent viscosity and density, foam volume up to 1.5-2.5L / kg, vacuum room temperature degassing. The foaming slurry has a viscosity of 20-30s / No. 4 Ford Cup viscosity, a density of 500-600g / L, and a foaming volume of 2L / kg.
[0054] In the preparation method of the mosquito repellent and anti-mite cowhide mat provided by the present invention, the stirring speed in step 3) of the foam layer preparation is 400-600 rpm.
[0055] In the preparation method of the mosquito repellent and anti-mite cowhide mat provided by the present invention, the drying temperature in step 3) of the foam layer preparation is 60-100° C., and the drying time is 2-10 minutes...
Embodiment 1
[0063] In this embodiment, the cowhide layer is selected from the first layer of buffalo leather, and the back cover has been finished, the thickness is 2.5mm, and the tensile strength is 25N / mm 2 , the shrinkage temperature of cowhide is >95°C, and the pH is 4.3.
[0064] Add 6 parts of the first anti-mosquito and anti-mite additive AM23-24 to 400-mesh activated carbon, mix thoroughly with a mixer, and let stand for 1 hour. Add 110 parts of water, 50 parts of acidic polyacrylic resin and 2 parts of foaming agent Ecoma-F912 into the stirring tank, stir evenly, and adjust the pH of the coating to 6-7 with acetic acid. Add the mixed activated carbon into the stirring tank, add 1 part of leveling agent R-620, stir evenly at 400 rpm, adjust the viscosity of the foaming slurry to 20s / No. 4 Ford Cup viscosity, and the density is 500g / L, degassing at room temperature under vacuum; coating amount is 80g / m 2 , pour the slurry into the spraying tank, and after the cowhide layer is sp...
Embodiment 2
[0067] In this embodiment, the cowhide layer is selected from the first layer of buffalo leather, and the back cover has been finished, the thickness is 2.5mm, and the tensile strength is 25N / mm 2 , the shrinkage temperature of cowhide is >95°C, and the pH is 4.3.
[0068] Add 9 parts of the first anti-mosquito and anti-mite additive AM23-24 into 500 mesh diatomaceous earth, mix thoroughly with a mixer, and let stand for 1 hour. Add 170 parts of water, 70 parts of acidic polyacrylic resin, and 3 parts of foaming agent Ecoma-F912 into the stirring tank, stir evenly, and adjust the pH of the coating to 6-7 with acetic acid. Add the mixed activated carbon into the stirring tank, add 2 parts of leveling agent R-620, stir evenly at 500 rpm, adjust the viscosity of the slurry to 25s / No. 4 Ford cup viscosity, and the density to 550g / L , degassing at room temperature under vacuum; coating amount is 100g / m 2 , the cowhide layer was sprayed and dried at 60°C, 70°C, 80°C, and 90°C in g...
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Abstract
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