Pulp composition

Abstract

The present disclosure provides a novel pulp composition with which it is possible to produce a pulp molded article that has improved strength. The pulp composition contains pulp, wax, and a paper strengthening agent. The paper strengthening agent includes a polyacrylamide-based paper strengthening agent, a polysaccharide-based paper strengthening agent, and/or a polyamide-based paper strengthening agent. The amount of the wax is 0.2% to 10.0% by weight inclusive with respect to the pulp. The pulp composition satisfies at least one of the following requirements (1) to (3). (1) The amount of the polyacrylamide-based paper strengthening agent is 0.1% to 1.1% by weight inclusive with respect to the pulp. (2) The amount of the polysaccharide-based paper strengthening agent is 0.6% to 5.0% by weight inclusive with respect to the pulp. (3) The amount of the polyamide-based paper strengthening agent is 0.3% to 0.9% by weight inclusive with respect to the pulp.

1 . A pulp composition comprising pulp, a wax and a paper strength agent, wherein
 the paper strength agent is at least one selected from the group consisting of a polyacrylamide paper strength agent, a polysaccharide paper strength agent and a polyamide paper strength agent,   the amount of the wax is 0.2% by weight or more and 10.0% by weight or less based on the pulp, and   the pulp composition satisfies at least one of the following (1) to (3):   (1) an amount of the polyacrylamide paper strength agent is 0.1% by weight or more and 1.18 by weight or less based on the pulp;   (2) an amount of the polysaccharide paper strength agent is 0.6% by weight or more and 5.0% by weight or less based on the pulp; and   (3) an amount of the polyamide paper strength agent is 0.3% by weight or more and 0.9% by weight or less based on the pulp.   
     
     
         2 . The pulp composition according to  claim 1 , wherein the amount of the polyacrylamide paper strength agent is 0.1% by weight or more and 1.1% by weight or less based on the pulp. 
     
     
         3 . The pulp composition according to  claim 1 , wherein the amount of the polysaccharide paper strength agent is 0.6% by weight or more and 5% by weight or less based on the pulp. 
     
     
         4 . The pulp composition according to  claim 1 , wherein the amount of the polyamide paper strength agent is 0.3% by weight or more and 0.9% by weight or less based on the pulp. 
     
     
         5 . The pulp composition according to  claim 1 , wherein the wax is petroleum wax. 
     
     
         6 . The pulp composition according to  claim 1 , wherein the wax is at least one selected from the group consisting of paraffin wax and microcrystalline wax. 
     
     
         7 . The pulp composition according to  claim 1 , wherein the wax is paraffin wax. 
     
     
         8 . The pulp composition according to  claim 1 , comprising at least one selected from the group consisting of benzalkonium chloride, formic acid, acetic acid and rosin. 
     
     
         9 . The pulp composition according to  claim 1 , which is free of dye. 
     
     
         10 . The pulp composition according to  claim 1 , wherein
 the wax is paraffin wax, and   the pulp composition comprises at least one selected from the group consisting of benzalkonium chloride, formic acid, acetic acid and rosin.   
     
     
         11 . A pulp formed article formed of the pulp composition according to  claim 1 . 
     
     
         12 . The pulp formed article according to  claim 11 , comprising a further wax and a further paper strength agent adhering to the surface. 
     
     
         13 . The pulp formed article according to  claim 11 , which is for food contact. 
     
     
         14 . A method for producing the pulp composition according to  claim 1 , comprising:
 a wax addition of adding the wax to the pulp; and   a paper strength agent addition of adding the paper strength agent to the pulp.