Recording material and recording sheet

Abstract

A recording material and a recording sheet free from surface fogging and excellent in dynamic coloring sensitivity, wet heat resistance, heat resistance, light resistance, plasticizer resistance, and water resistance. A recording material comprising a composition containing at least one kind of a compound (1) and at least one kind of a compound (2) and/or at least one kind of a compound (3), and a recording sheet having a recording layer formed from the recording material. Compound (1), Compound (2), Compound (3) (in the formulae, R 1 , R 2 , R 6 , R 7 , R 11 , R 12 indicate hydrogen atom or alkyl radical, a 1 -a 3 integer of 1-6, n 1 -n 3 0, 1 or 2, m 1 , m 4 and m 7 0, 1, 2, or 3. R 3 , R 4 , R 8 , R 9 , R 13 , R 14 indicate alkyl radical or the like, m 2 , m 3 , m 5 , m 6 , m 8 , and m 9 0, 1 or 2, Y 1 -Y 3 Co or NRCO (R indicates hydrogen atom or the like)).

1 . A composition including: 
 at least one type of a compound represented by Formula (1); wherein                          R 1  and R 2  each independently represent hydrogen or C1-C6 alkyl,    a 1  represents an integer of 1 to 6,    n 1  represents 0, 1 or 2,    m 1  represents 0 or an integer in the range 1 to 3,    R 3  and R 4  each independently represent nitro, carboxyl, halogen, C1-C6 alkyl or C2-C6 alkenyl,    m 2  and m 3  each independently represent 0, 1 or 2;    R 3  and R 4  may be different to each other when m 2  and m 3  represent each 2,    Y 1  represents CO or NR 5 CO (in the equation, R 5  represents hydrogen or C1-C6 alkyl);    at least one type of a compound represented by Formula (2); wherein                          R 6  and R 7  each independently represent hydrogen or C1C6 alkyl,    a 2  represents an integer of 1 to 6,    n 2  represents 0, 1 or 2,    m 4  represents 0 or an integer in the range 1 to 3,    R 8  and R 9  each independently represent nitro, carboxyl, halogen, C1-C6 alkyl or C2-C6 alkenyl,    m 5  and m 6  each independently represent 0, 1 or 2;    R 8  and R 9  may be different to each other when m 5  and m 6  represent each 2,    Y 2  represents CO or NR 10 CO (in the equation, R 10  represents hydrogen or C1-C6 alkyl); and/or    at least one type of a compound represented by Formula (3); wherein                          R 11  and R 12  each independently represent hydrogen or C1-C6 alkyl,    a 3  represents an integer of 1 to 6,    n 3  represents 0, 1 or 2,    m 7  represents 0 or an integer in the range 1 to 3,    R 13  and R 14  each independently represent nitro, carboxyl, halogen, C1-C6 alkyl or C2-C6 alkenyl,    m 8  and m 9  each independently represent 0, 1 or 2;    R 13  and R 14  may be different to each other when m 8  and m 9  represent each 2,    Y 3  represents CO or NR 15 CO (in the equation, R 15  represents hydrogen or C1-C6 alkyl).    
     
     
         2 . A recording material comprising: 
 at least one type of a compound represented by Formula (1); wherein                          R 1  and R 2  each independently represent hydrogen or C1-C6 alkyl,    a 1  represents an integer of 1 to 6,    n 1  represents 0, 1 or 2,    m 1  represents 0 or an integer in the range 1 to 3,    R 3  and R 4  each independently represent nitro, carboxyl, halogen, C1-C6 alkyl or C2-C6 alkenyl,    m 2  and m 3  each independently represent 0, 1 or 2;    R 3  and R 4  may be different to each other when m 2  and m 3  represent each 2,    Y 1  represents CO or NR 5 CO (in the equation, R 5  represents hydrogen or C1-C6 alkyl);    at least one type of a compound represented by Formula (2); wherein                          R 6  and R 7  each independently represent hydrogen or C1-C6 alkyl,    a 2  represents an integer of 1 to 6,    n 2  represents 0, 1 or 2,    m 4  represents 0 or an integer in the range 1 to 3,    R 8  and R 9  each independently represent nitro, carboxyl, halogen, C1-C6 alkyl or C2-C6 alkenyl,    m 5  and m 6  each independently represent 0, 1 or 2;    R 8  and R 9  may be different to each other when m 5  and m 6  represent each 2,    Y 2  represents CO or NR 10 CO (in the equation, R 10  represents hydrogen or C1-C6 alkyl); and/or    at least one type of a compound represented by Formula (3); wherein                          R 11  and R 12  each independently represent hydrogen or C1-C6 alkyl,    a 3  represents an integer of 1 to 6    n 3  represents 0, 1 or 2,    m 7  represents 0 or an integer in the range 1 to 3,    R 13  and R 14  each independently represent nitro, carboxyl, halogen, C1-C6 alkyl or C2-C6 alkenyl,    m 5  and m 9  each independently represent 0, 1 or 2;    R 13  and R 14  may be different to each other when m 8  and m 9  represent each 2,    Y 3  represents CO or NR 15 CO (in the equation, R 15  represents hydrogen or C1-C6 alkyl).    
     
     
         3 . A recording material according to  claim 2  wherein the compound represented by Formula (2) according to  claim 2  and/or the compound represented by Formula (3) according to  claim 2  each have a content quantity in the range 5 to 500 parts by weight relative to 100 parts by weight of the compound represented by Formula (1) according to  claim 2 .  
     
     
         4 . A recording sheet comprising a base sheet and a recording material layer made from a recording material according to  claim 2  on the said base sheet.  
     
     
         5 . A recording sheet according to  claim 4 , wherein the compound represented by Formula (2) according to  claim 2  and/or the compound represented by Formula (3) according to  claim 2  each have a content quantity in the range 5 to 500 parts by weight relative to 100 parts by weight of the compound represented by Formula (1) according to  claim 2.