Pressure sensitive recording paper

Abstract

A pressure-sensitive recording paper comprising a support having coated thereon a layer of color former, said color former dissolved in at least one compound represented by the following formula: ##STR1## wherein n is an integer of 1 to 8, R and R' each represent a member selected from the group consisting of alkyl groups containing one to eight carbon atoms, and a hydrogen atom, p and q represent the number of alkyl groups, p+q being an integer of 1 to 3, and R and R' may be the same.

What is claimed is: 
     
       1. A pressure sensitive recording paper comprising a support having coated thereon a layer of color former, said color former dissolved in at least one compound represented by the following formula: ##STR10## wherein n is an integer of 1 to 8, R and R' each represent a member selected from the group consisting of alkyl groups containing one to eight carbon atoms, and a hydrogen atom, p and q represent the number of alkyl groups, p+q being an integer of 1 to 3, and R and R' may be the same. 
     
     
       2. The pressure sensitive recording paper as claimed in claim 1, wherein said compound is a member selected from the group consisting of: ##STR11## 
     
     
       3. The pressure sensitive recording paper of claim 1, wherein said compound is used as a mixture with a solvent selected from the group consisting of a petroleum fraction, a synthetic oil and a plant oil. 
     
     
       4. The pressure sensitive recording paper of claim 1, wherein said color former and said compound are contained in microcapsules. 
     
     
       5. The pressure sensitive recording paper of claim 3, wherein said petroleum fraction is a member selected from the group consisting of liquid paraffin, kerosene and naphtha. 
     
     
       6. The pressure sensitive recording paper of claim 3, wherein said synthetic oil is a member selected from the group consisting of chlorinated paraffin, chlorinated diphenyl, hexahydroterphenyl, alkylnaphthalenes and alkylated polyphenyls. 
     
     
       7. The pressure sensitive recording paper of claim 3, wherein said plant oil is a member selected from the group consisting of cottonseed oil and linseed oil.