Highlight\pattern release paper backing paper and preparation method thereof
A technology of release paper and patterns, which is applied in the field of high-gloss/pattern release paper backing paper and its preparation, can solve the problems of unsatisfactory high-grade leather release paper, different thickness of release layer, and waste of release coating, etc., and achieve Moderate absorption, smooth and delicate surface, cost-saving effect
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Embodiment 1
[0013] One, embodiment one, it comprises the steps:
[0014] 1. Base paper manufacturing, take coniferous wood pulp and beat to 60°SR, hardwood pulp to 50°SR, add 0.50% cationic starch to make paper, base paper basis weight 130g / m 2 , thickness 145um.
[0015] 2. Coating preparation, using the compound preparation method of "high-shear dispersion-low-shear preparation-programmed aging-wave wheel propulsion mixing":
[0016] (1) Disperse the 68.0% solid calcium carbonate, kaolin, and water mixture in the dispersion barrel (reservoir 1) at a high speed of 1600r / min for 120min.
[0017] (2) Prepare and add styrene-acrylic latex, calcium stearate, carboxymethyl cellulose, sodium hexametaphosphate and other additives under stirring at 150r / min, and stir and mix for 20 minutes.
[0018] (3) In the storage aging barrel (reservoir 2), alternately stir and ripen at the speed of 60r / min×30min plus 20r / min×90min for 24 hours.
[0019] (4) In the material mixing barrel (reservoir 3), u...
Embodiment 3
[0031] Three, embodiment three, it comprises the steps:
[0032] 1. Base paper manufacturing, take coniferous wood pulp and beat to 58°SR, hardwood pulp to 48°SR, add 0.45% cationic starch to make paper, base paper basis weight 130g / m 2 , thickness 148um.
[0033] 2. Coating preparation, using the compound preparation method of "high-shear dispersion-low-shear preparation-programmed aging-wave wheel propulsion mixing":
[0034] (1) Disperse the 66.0% solid calcium carbonate, kaolin, and water mixture in the dispersion barrel (reservoir 1) at a high speed of 1400r / min for 90min.
[0035](2) Prepare and add styrene-acrylic latex, calcium stearate, carboxymethyl cellulose, sodium hexametaphosphate and other additives under stirring at 120r / min, and stir and mix for 30 minutes.
[0036] (3) In the storage aging barrel (reservoir 2), alternately stir and ripen at a speed of 100r / min×30min plus 30r / min×90min for 12 hours.
[0037] (4) In the material mixing barrel (reservoir 3), ...
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