Method for packaging cellulosic polymer, method for transporting the same, and cellulosic polymer package

Abstract

A problem to be solved is to provide a packaging method suitable for transporting a cellulosic polymer, and another problem to be solved is to provide a packaging method suitable for transportation while suppressing the viscosity reduction of the cellulosic polymer.The cellulosic polymer is packaged so as to meet the following conditions (1), (2), and (3):(1) the packaging bag having a gas barrier property is filled with a cellulosic polymer;(2) an oxygen concentration in the packaging bag is adjusted to 0.8% or less and the packaging bag was sealed; and(3) when the packaging bag filled with the cellulosic polymer is placed such that the longest long side L is horizontal, the depth D of the packaging bag from the horizontal plane and the long side L satisfy the relational expression of 6.1≤L/D≤10.

1 . A method for packaging a cellulosic polymer, comprising: filling a packaging bag having a gas barrier property with the cellulosic polymer; and sealing the packaging bag. 
     
     
         2 . The method for packaging a cellulosic polymer according to  claim 1 , wherein the method satisfies the following conditions (1) to (3):
 (1) the packaging bag having the gas barrier property is filled with a cellulosic polymer;   (2) an oxygen concentration in the packaging bag is adjusted to 0.8% or less and the packaging bag is sealed; and   (3) when the packaging bag filled with the cellulosic polymer is placed such that the longest long side L is horizontal, the depth D of the packaging bag from the horizontal plane and the long side L satisfy a relational expression of 6.1≤L/D≤10.   
     
     
         3 . The method for packaging a cellulosic polymer according to  claim 1 , wherein the longest long side L of the packaging bag filled with the cellulosic polymer has a length of 700 mm or more and 1,100 mm or less. 
     
     
         4 . The method for packaging a cellulosic polymer according to  claim 1 , wherein a short side W of the packaging bag perpendicular to the long side L of the packaging bag filled with the cellulosic polymer has a length of 400 mm or more and less than 700 mm. 
     
     
         5 . The method for packaging a cellulosic polymer according to  claim 1 , wherein the depth D of the packaging bag filled with the cellulosic polymer is less than 130 mm. 
     
     
         6 . The method for packaging a cellulosic polymer according to  claim 1 , comprising: filling the packaging bag having a gas barrier property with a cellulosic polymer, the packaging bag having an outermost layer with a surface satisfying a range of a static friction coefficient of 0.2 to 0.5 and a dynamic friction coefficient of 0.15 to 0.35. 
     
     
         7 . The method for packaging a cellulosic polymer according to  claim 6 , wherein the outermost layer of the packaging bag satisfies a range of a smoothness of 2 to 10 seconds. 
     
     
         8 . The method for packaging a cellulosic polymer according to  claim 6 , wherein the outermost layer of the packaging bag is a paper base material. 
     
     
         9 . The method for packaging a cellulosic polymer according to  claim 6 , wherein the outermost layer of the packaging bag satisfies a range of a basis weight of 50 to 100 g/m 2 . 
     
     
         10 . The method for packaging a cellulosic polymer according to  claim 1 , wherein the cellulosic polymer is carboxymethyl cellulose. 
     
     
         11 . The method for packaging a cellulosic polymer according to  claim 1 , wherein after the inside of the packaging bag is vacuum-treated, nitrogen substitution is conducted to adjust the oxygen concentration to 0.8, or less. 
     
     
         12 . The method for packaging a cellulosic polymer according to  claim 1 , wherein the packaging bag has an internal pressure of 85 kPa or less. 
     
     
         13 . A method for transporting a cellulosic polymer, comprising: stacking packaging bags obtained by the method for packaging a cellulosic polymer according to  claim 1  and transporting the packaging bags to a destination. 
     
     
         14 . The method for transporting a cellulosic polymer according to  claim 13 , wherein the packaging bags are stacked in two layers or more and ten layers or less. 
     
     
         15 . A cellulosic polymer package, comprising: a sealed packaging bag and a cellulosic polymer filled in the packaging bag under the following conditions (1) to (3):
 (1) the packaging bag having a gas barrier property is filled with the cellulosic polymer;   (2) an oxygen concentration in the packaging bag is adjusted to 0.8% or less and the packing bag is sealed; and   (3) when the packaging bag filled with the cellulosic polymer is placed such that the longest long side L is horizontal, the depth D of the packaging bag from the horizontal plane and the long side L satisfy a relational expression of 6.1≤L/D≤10.   
     
     
         16 . The cellulosic polymer package according to  claim 15 , wherein the packaging bag has an outermost layer with a surface satisfying a range of a static friction coefficient of 0.2 to 0.5 and a dynamic friction coefficient of 0.15 to 0.35. 
     
     
         17 . The cellulosic polymer package according to  claim 15 , wherein the cellulosic polymer is carboxymethyl cellulose. 
     
     
         18 . The cellulosic polymer package according to  claim 15 , wherein the packaging bag has an oxygen concentration of more than 0.3% and 0.8% or less. 
     
     
         19 . The cellulosic polymer package according to  claim 15 , wherein the packaging bag has an internal pressure of 85 kPa or less. 
     
     
         20 . The cellulosic polymer package according to  claim 15 , wherein the packaging bag has a two-layer structure or a three or more-layer structure, the outermost layer of the packaging bag is a paper base material, and at least one of the inner bag layers inside the outermost layer is a gas barrier layer.