INK-JET RECORDING LIQUID SET, PREPARATION METHOD OF PRETREATMENT LIQUID FOR INK-JET RECORDING, PRINTED MATTER, AND INK-JET RECORDING METHOD
FIG2 is a cross-sectional drawing which illustrates a schematic structure of the printed matter of the present invention  FIG3 is a cross-sectional drawing of a PET/CPP laminate body for measuring peeling strength   FIG1 is a schematic view illustrating an example of a pretreatment and an ink-jet recording apparatus preferably used for the present invention
As illustrated in FIG2, a printed matter (P) is obtained by discharging the pretreatment liquid according to the present invention from an ink-jet head on a substrate (F) to form a pretreatment layer (C), the ink is discharged from an ink-jet head at a position where the pretreatment layer (C) is fixed, and the ink is fixed to form a printing layer (R).  As illustrated in FIG3, a dry laminate adhesive (TAKELAC A626, made by Mitsui Chemicals, Inc.) and a two-part curing type isocyanate cross-linking agent (TAKENATE A50, made by Mitsui Chemicals, Inc.) were applied in a coating amount of 3.0 g/m2 to obtain a coated layer (54) on a printed matter (a pretreatment layer (52) and an ink layer (53)) formed on a PET film (51),and the coated layer (54) was bonded with a CPP film (55) (P1128 60 µm, made by Toyobo Co., Ltd.) to obtain a PET/CPP laminate body (the numbers in parentheses refer to the numbers indicated in FIG3.). The obtained laminate body was cut into a length of 70 mm and a width of 15 mm, and the peeling strength in the 90 degree direction was measured at a peeling speed of 300 mm/min using a TENSILON tensile tester.  FIG1 is a schematic view of a pretreatment/ink-jet recording apparatus preferred for the present invention. However, the present invention is not limited to this. For example, in the pretreatment/ink-jet recording apparatus 1 illustrated in FIG1, the first drying unit 14 may be omitted.
cross-sectional view, schematic view
5
preferably but it is usually C.I. Pigment Red polyethylene glycol having pigment solid content became x less than
30
about
14
first drying unit
20
IJ printing unit
52
pretreatment layer
53
ink layer
10
is precoat application unit
50
at
21
ink-jet head
23
second drying unit
['1. An ink-jet recording liquid set comprising a pretreatment liquid and an ink, wherein the pretreatment liquid contains a coagulant, water, and water-insoluble resin particles containing at least one of a polyester skeleton, a polyolefin skeleton and polyurethane skeleton; and the ink contains at least a pigment, a compound having an oxazoline group, and water.', '2. The ink-jet recording liquid set described in claim 1, wherein the coagulant is a polyvalent metal salt or an organic acid.']