| abstract |
The invention relates to the technical field of heat-sensitive label paper, and proposes a heat-sensitive synthetic label paper against plasticizers of fresh-keeping film and a preparation method thereof, comprising a high-quality base paper layer, a heat-sensitive discoloration layer and a varnish isolation layer sequentially arranged from bottom to top ; Wherein, the varnish isolation layer comprises the following components in parts by weight: 50-60 parts of EVOH resin, 10-20 parts of varnish, 3-7 parts of compatibilizer, 5-8 parts of graphene, 0.1-1 part of silane Coupling agent, 0.5-0.7 part of lubricant, 0.3-0.5 part of anti-fog agent. The invention adopts EVOH resin and varnish as the main components of the varnish isolation layer, and attaches them to the surface of the heat-sensitive discoloration layer, which can effectively isolate water, oil, stains and plasticizers migrated from the fresh-keeping film, and avoid words on the label paper. Dissolved by water, oil, stains and plasticizers and blurred, greatly improving the application time of label paper. |