Effect of aluminum sulfate on paper dyeing effect

   Date:2020-03-09     Browse:40    
Core tips:Adding an appropriate amount of aluminum sulfate can improve the dyeing effect of dye paper.Aluminum sulfate can improv
  Adding an appropriate amount of aluminum sulfate can improve the dyeing effect of dye paper.Aluminum sulfate can improve the dyeing effect of anionic direct dyes more than cationic direct dyes; yellow dye can significantly increase the b value of paper, and the L value and a value will be different. The red dye can significantly increase the a value of the paper, and the L value and the b value can be reduced to varying degrees; the red dye reduces the L value to a greater extent than the yellow dye; the brown dye can increase the paper's a value , B value, but at the same time L value will be reduced; black dye can greatly reduce the L value of the paper, but at the same time a value, b value will be reduced to a certain extent; direct dyeing of bleached chemical pulp than Bleaching pulp has better dyeing effect; pulp with high beating degree is conducive to dyeing.
 
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