High-glossiness coating, high-glossiness paper and preparation method thereof
A coating and high-gloss technology, used in paper coatings, coatings, papermaking, etc., can solve the problems of high-gloss paint waste, failure to achieve, and uneven gloss of high-gloss paper, and achieve the effect of reducing the coating amount and simplifying the synthesis method.
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[0036] Example 1
[0037] This embodiment provides a high-gloss paper and a preparation method thereof. The preparation steps are as follows:
[0038] (1) Papermaking
[0039] Take 100g of absolutely dry softwood pulp board to soak, defuse and beat to 17°SR, add 0.5g polyamide polyamine-epichlorohydrin resin (PAE), 0.01g nano cellulose, 0.5g carboxylate to the obtained puree Methyl cellulose, 0.2g cationic starch, 1.0g light calcium carbonate, stir and mix to obtain a mixed pulp; weigh the mixed pulp according to 0.6g absolutely dry pulp for papermaking (quantity 30g / m 2 ).
[0040] (2) Sizing
[0041] Surface sizing the paper obtained in step (1) with styrene-butadiene latex, the surface sizing amount is 2g / m 2 , Calendering after drying, the pressure of calendering light is 45kN / m.
[0042] (3) Preparation of pre-coated paint and high-gloss paint
[0043] Pre-coating paint (mass percentage): 40% kaolin, nano cellulose + polyvinyl alcohol 5%, polyoxyethylene polyoxypropylene block copol...
Example Embodiment
[0049] Example 2
[0050] This embodiment provides a high-gloss paper and a preparation method thereof. The preparation steps are as follows:
[0051] (1) Papermaking
[0052] Take 100g of absolutely dry hardwood pulp board for soaking, dissolving and beating to 17°SR, add 0.5g melamine formaldehyde resin, 0.01g nanocellulose, 0.5g carboxymethyl cellulose, 0.2g cationic starch to the obtained puree , 1.0g light calcium carbonate, stir and mix to obtain a mixed pulp; weigh the mixed pulp according to 0.6g absolutely dry pulp for papermaking (quantity 30g / m 2 ).
[0053] (2) Sizing treatment
[0054] Surface sizing the paper obtained in step (1) with styrene-butadiene latex, the surface sizing amount is 2g / m 2 , Calendering after drying, the pressure of calendering light is 45kN / m.
[0055] (3) Preparation of pre-coated paint and high-gloss paint
[0056] Pre-coating (mass percentage): 50% kaolin, 10% nanocellulose + polyvinyl alcohol, 2% polyoxyethylene polyoxypropylene block copolymer, 3...
Example Embodiment
[0062] Example 3
[0063] This embodiment provides a high-gloss paper and a preparation method thereof. The preparation steps are as follows:
[0064] (1) Papermaking
[0065] Take 50g of absolutely dry softwood pulp board and 50g of absolutely dry hardwood pulp board for mixing, soaking, dissolving, and beating to 17°SR, and add 0.5g of urea-formaldehyde resin, 0.01g of nanocellulose, and 0.5g of carboxymethyl to the obtained puree Base cellulose, 0.2g cationic starch, 1.0g light calcium carbonate, stir and mix to obtain a mixed pulp; weigh the mixed pulp according to 0.6g absolutely dry pulp for papermaking (quantity 30g / m 2 ).
[0066] (2) Sizing treatment
[0067] Surface sizing the paper obtained in step (1) with styrene-butadiene latex, the surface sizing amount is 2g / m 2 , Calendering after drying, the pressure of calendering light is 45kN / m.
[0068] (3) Preparation of pre-coated paint and high-gloss paint
[0069] Pre-coating (mass percentage): kaolin 60%, nano cellulose + polyv...
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