A kind of functional film, production method and fabric
A functional film and production method technology, applied in the direction of chemical instruments and methods, layered products, synthetic resin layered products, etc., can solve the problems of moisture permeability gap, non-combustible, aggravated air pollution, etc., to achieve soft hand feeling, High water resistance, high breathability and moisture permeability effect
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Embodiment 1
[0032] (1) preparation for liquid adjustment
[0033] First, dissolve 5g of sodium carboxymethylcellulose powder with a degree of substitution of 0.5 in 120g of water. After fully dissolving, mix and stir with 100g of water-based polyurethane resin. At the same time, add 0.5g of bridging agent and 0.5g of defoamer, and stir fully Finally, the coating resin liquid ① is formed.
[0034] (2) Preparation of functional film
[0035] Through the coating machine, use the prepared resin liquid ① on the surface of the release paper or release cloth to coat evenly, and then dry and cure in a continuous drying oven (70°C-90°C-130°C-150°C) to obtain Functional film with a thickness of 25 μm. Its performance is shown in Table 1.
Embodiment 2
[0037] (1) preparation for liquid adjustment
[0038] First, dissolve 5g of sodium carboxymethylcellulose powder with a degree of substitution of 0.9 in 120g of water. After fully dissolving, mix and stir with 100g of water-based polyurethane resin. At the same time, add 0.5g of bridging agent and 0.5g of defoamer, and stir fully Finally, a coating resin liquid ② is formed.
[0039] (2) Preparation of functional film
[0040] Through a coating machine, use the prepared resin liquid ② on the surface of the release paper or release cloth to evenly coat, and then dry and cure in a continuous drying oven (70°C-90°C-130°C-150°C) to obtain Functional film with a thickness of 25 μm. Its performance is shown in Table 1.
Embodiment 3
[0042] (1) preparation for liquid adjustment
[0043] First, dissolve 5g of sodium carboxymethylcellulose powder with a degree of substitution of 1.3 in 120g of water. After fully dissolving, mix and stir with 100g of water-based polyurethane resin. At the same time, add 0.5g of bridging agent and 0.5g of defoamer, and stir fully Finally, a coating resin liquid ③ is formed.
[0044] (2) Preparation of functional film
[0045] Through the coating machine, use the prepared resin solution ③ on the surface of the release paper or release cloth to evenly coat, and then dry and cure in a continuous drying oven (70°C-90°C-130°C-150°C) to obtain Functional film with a thickness of 25 μm. Its performance is shown in Table 1.
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