Playing card paperboard and processing method thereof

Abstract

The invention discloses a playing card paperboard, orderly comprising a surface layer wet paper page, a core layer wet paper page and a bottom layer wet paper page which are combined. The playing card paperboard is characterized in that foam glue is coated before combining the surface layer wet paper page, the core layer wet paper page and the bottom layer wet paper page; the processing method comprises the following steps: preparing each slurry into wet paper pages; preparing the foam glue by a bonding agent, dye and water and coating the foam glue on one face of the surface layer wet paper page, two faces of the core layer wet paper page, one or more faces of one face of the bottom layer wet paper page; combining each layer of wet paper pages; squeezing and dewatering each layer so as to prepare a paperboard, and drying the paperboard; coating corresponding coating material on the surface of the paperboard; and processing after-treatment so as to manufacture the playing card paperboard. According to the invention, the bonding agent used for bonding each layer of paper web and dye capable of improving opaqueness of playing card papers are coated on each layer of the wet paper page in a foam glue method; technology of adding the dye into core slurry is substituted; and dyeing pollution caused by papermaking whitewater is avoided.

Description

technical field [0001] The invention relates to a playing card cardboard and a processing method thereof, belonging to the technical field of papermaking. Background technique [0002] Poker is a game that does not divide age groups and has few restrictions. With the continuous enrichment and growth of entertainment life, the demand for playing cards in the market has increased rapidly. According to statistics, as of 2010, China has become the world's largest producer and consumer of playing cards. At present, the high-end playing cards on the market are mainly black core playing cards, which have the advantage of being opaque and not easy to cheat. At present, the base paper of this kind of playing cards is mainly composed of two single-sided coated papers glued with carbon black and glue. The processing technology is complicated, the loss is large, the cost is high, the output is small, and it mainly depends on imports. [0003] Chinese utility model patent ZL2007201085...

AI Technical Summary

Problems solved by technology

The above two patents respectively add blue and black dyes to the core pulp to increase the opacity of the poker paper, but this method is prone to cause color pollution of the dyes in the white water of papermaking, increasing the cost of environmental protection treatment; the latter adds trivalent dyes Although aluminum salt alleviates the pollution of white water in papermaking and the wire part of the paper machine, the addition of chemicals increases the production cost; in addition, in order to reduce the delamination of the cardboard, the interlayer spraying adhesive Mixture to increase the adhesion between the layers, but the concentration of starch adhesive glue for spraying is low, which increases the dehydration of the net part, and is easy to pollute the felt and net, and its low concentration is easy to cause the glue to flow Too much migration in paper