Vacuum type thermal transfer printing body paper and method for preparing same
A thermal transfer printing and vacuum technology, applied in pulp beating/refining method, special paper, paper, etc., can solve the problems of high cost, complicated process, inconvenient use, etc.
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Embodiment 1
[0032] After testing, the surface density of the finished base paper for vacuum thermal transfer printing is 28g / m 2 , tightness 0.7g / m 3 ;Transverse tensile strength≧1.45KN / m; Longitudinal tensile strength≧1.65KN / m; Air permeability 1.8um / pa.s; Front smoothness≧200s; Surface water absorption 12.0g / m 2 .
[0033]
Embodiment 2
[0035] Prepare 50wt% coniferous wood pulp, 48wt% hardwood pulp, and 0.1 wt% talcum powder; pulp the prepared mixture through a hydraulic pulper, and the pulping time is 10 minutes; beat the pulp into a refiner, and the pulping concentration 4.5%, when the beating degree after refining is 42°SR, put the refined pulp into the pulp forming tank, and then into the pulp blending tank, and add 0.001 wt% of water resistance agent and 0.03wt of wet strength agent at the same time %, rosin lactic acid 0.002wt%, cationic starch 0.025wt%, retention aid 0.005wt%, carry out pulping; the resulting pulping is driven into the pulping tank for pulping, and then enters the machipool, paper machine high box, In the paper machine wire section and the paper machine press section, add 0.3wt% aluminum sulfate and 0.2wt% AKD neutral sizing agent to the paper machine head box; the vacuum of the paper machine wire section is 0.05MPa, and the vacuum of the paper machine press section is 2.0MPa After pap...
Embodiment 3
[0039] Prepare 25wt% softwood pulp, 50wt% hardwood pulp, and 20wt% talcum powder; pulp the prepared mixture through a hydraulic pulper, and the pulping time is 8 minutes; beat the pulp into the refiner, and the pulping concentration When the beating degree after refining is 45°SR, put the refined pulp into the pulp forming tank, and then into the pulp blending tank, and add 0.005 wt% of water resistance agent and 0.1 wt% of wet strength agent at the same time %, rosin lactic acid 2.0 wt%, starch tertiary amino alkyl ether 0.025wt%, retention aid 0.005wt%, carry out pulping; the resulting pulping is driven into the pulping tank for pulping, and then enters the machining pool, paper Machine head box, paper machine wire section and paper machine press section, add additives aluminum sulfate 1.5 wt% and AKD neutral sizing agent 0.9wt% in the paper machine head box; paper machine wire section vacuum 2.0MPa, paper machine press The internal vacuum is 4.0MPa. After papermaking, the p...
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