A kind of method of exact evaluation digit printing thickener pattern profile definition
Technical field
The invention belongs to printing in textiles effect evaluation method field, particularly to a kind of exact evaluation digit printing thickener
The method of pattern profile definition.
Background technology
In recent years, textile is digital ink-jet printed compared with Conventional decal mode, has the advantage that (a) eliminates biography
Plate-making/net operation processed in system printing method, greatly speeds up speed of drawing a design, and reduces cost of drawing a design;B () is not spent back greatly by style
Restrictions little, that chromatography is how many, reach 1670 million colors in theory.Accurate, the levels are rich to HUAJING, printing quality is good;C () is real
Show the customer demand of small lot, fast response;D () technical height, is difficult to be replicated with counterfeit, fundamentally protects manufacturer
Intellectual property and interests with designer;E () eliminates mill base operation processed, decrease useless slurry waste and polluted-water;F () presses
Need to give ink, cloth cover loose colour is few, and dye dosage only has traditional about 40%, and only 5% ink washed away when post processing, produce
Raw contaminant capacity is only the 1/15~1/25 of Conventional decal technique.In addition going up pulp layer relatively thin, therefore water-washing process is relatively easy, time
Between short, with water, steam consumption reduce, energy-saving and emission-reduction;G () occupation area of equipment is only the 1/10 of conventional printing equipment, automatization's journey
Degree height, decreases human cost to a certain extent, not only accomplishes cleaning production but also can reduce cost.Due to digital ink-jet printed skill
Art has plurality of advantages, is therefore obtaining significant progress and progress in recent ten years.
But, the evaluation methodology primary limitation of current digit printing pattern profile definition tradition ocular estimate, by
Printing the geometry of different fineness on fabric, range estimation style shape, fineness judge the contour sharpness of flower pattern, and ocular estimate is deposited
Deficiency mainly have and may have bigger difference with the strongest subjectivity, different people and varying environment, it is impossible to definite
The fine degree of reflection flower pattern.Also having some quantitative methods to measure pattern profile method clearly, but operation is difficult to control to, error is relatively
Greatly.It would therefore be desirable to a kind of can the method for quantitative assessment pattern profile definition, also really to provide simple to operate, fast
Prompt convenient, result quantitative measuring method accurately, provides foundation for evaluating stamp pattern profile definition.
Summary of the invention
It is an object of the invention to for the deficiencies in the prior art, it is provided that a kind of exact evaluation digit printing thickener pattern profile
The method of definition, by printing different size of round dot, evaporates, washes, drying scanner or photographing unit are taken pictures, then uses
Image analysis software-Imagepro plus is to 36 round dot test area;The method is simple and convenient, result is accurate, can be used to
The contour sharpness of quantitative assessment stamp flower pattern, to overcome weak point of the prior art.
For achieving the above object, the technical scheme is that such: a kind of exact evaluation digit printing thickener flower pattern
The method of contour sharpness, comprises the following steps:
A, first will contain polysaccharide polymer and surpass viscosity number code and stick with paste bafta or chemical & blended fabric are carried out pretreatment, and dry, treat digital print
Flower;
B, separately designing the circle of a diameter of 3mm, 5mm, 7mm, 9mm, 11mm, 13mm, use cyan spray printing, ink ejection amount is 100%, spray
After print, decatize, wash, soap, dry;
C, with scanner to circle spray printing pattern be scanned or take pictures;
D, employing image analysis software, to multiple round dot test area, compare polysaccharide polymer and surpass viscosity number code paste DM-8812 not
The round spray printing pattern area of content in proportion, the area of a circle is the biggest, represents that contour sharpness is the poorest.
The method of above-mentioned exact evaluation digit printing thickener pattern profile definition, in described step a, pretreating process is:
It is 0.3~1.5% that polysaccharide polymer surpass viscosity number code to be stuck with paste DM-8812 consumption, and sodium carbonate amount is 0.5~2.0%, and amount of urea is
4~8%, sodium sulfate consumption is 4~8%, stirs, and the starching thickener apparent viscosity rotating cylinder viscometer modulated is at 6# rotor
Recording under 20r/min, its value is between 600~1500mPa.s.
The method of above-mentioned exact evaluation digit printing thickener pattern profile definition, in described step a, preprocess method can
To be padding method, coating and spraying process.
The method of above-mentioned exact evaluation digit printing thickener pattern profile definition, drying temperature in described step a is 80
~100 DEG C.
The method of above-mentioned exact evaluation digit printing thickener pattern profile definition, in described step b, the condition of evaporating is 102
DEG C insulation 10~20min.
The method of above-mentioned exact evaluation digit printing thickener pattern profile definition, image analysis software in described step d
Testing procedure is: sets up scale → selection scale → selection measured zone color → measurement and selects color → selection to need measuring surface
Long-pending region → click measurement → measurement data is display in " view-statistics ".
The invention has the beneficial effects as follows:
1., compared with ocular estimate, the evaluation methodology of the present invention is varied in size by printing the rectilinear strip of round dot or different thicknesses,
Measure the area of its round dot or lines to evaluate the contour sharpness of flower pattern, by pattern profile definition evaluation method by subjectivity to
Objective, by the transformation of qualitative to quantitative.
2. the method for the present invention is simple to operation, result accurate, be prone to judgement, for digit printing pattern profile definition
Provide an evaluation method, easily facilitate people and evaluate the printing quality of printing gum and Printing.
Accompanying drawing explanation
Fig. 1 is the ink-jet printed design figure of the present invention.
Detailed description of the invention
Below by specific embodiment, the present invention is further illustrated, but the protection content of the present invention be not limited to
Lower embodiment.
Embodiment one.
A kind of method of exact evaluation digit printing thickener pattern profile definition comprises the following steps:
1, polysaccharide polymer surpass viscosity number code to be stuck with paste DM-8812 consumption is 0%, 0.3%, 0.5%, 0.7%, 1.0%, 1.2%, and sodium carbonate is used
Amount is 1.0%, and amount of urea is 6%, and sodium sulfate consumption is 6%, stirs, and the starching thickener apparent viscosity modulated rotates
Viscometer records under 6# rotor 20r/min, and its value is between 1000 ± 100mPa.s.
2, the thickener padding method then applying above-mentioned preparation carries out starching process to cotton woven fabric, and two leachings two are rolled, pressure 1.0
kg/cm2, pick-up: 66.7%) → dry (about 85 DEG C) → spray printing → decatize (102 DEG C × 13min) → soap boiling 1 time (95 DEG C,
20 min, add DM-1522 1 g/L) → cold water washes → dries;
3, reapply and to pattern scan or take pictures with scanner uniscan D6810;
4, using image analysis software-Imagepro plus to 36 round dot test area, area is the biggest, represents clear-cut
Spend relatively poor, otherwise, contour sharpness represents preferable.
According to the method described above, the super viscosity number code of different amounts sticks with paste DM-8812 contour sharpness such as table 1 on cotton woven fabric
Shown in.
Table 1
DM-8812 consumption |
0% |
0.3% |
0.5% |
0.7% |
1.0% |
1.2% |
Contour sharpness |
5.23 |
4.42 |
4.08 |
3.77 |
3.68 |
3.70 |
By the data of table 1 it can be seen that along with super viscosity number code sticks with paste the increase of DM-8812 consumption, ink-jet printed washing is surveyed after drying
The area obtained is the least, closer to the area of original design round dot, illustrates that contour sharpness is the most clear, when DM-8812 consumption is more than
When 0.7%, survey its area change amplitude less, preferable contour sharpness can be obtained, thus optimize the consumption of thickener.
Embodiment two.
A kind of method of exact evaluation digit printing thickener pattern profile definition comprises the following steps:
1, polysaccharide polymer surpass viscosity number code to be stuck with paste DM-8812 consumption is 0.7%, and sodium alginate consumption is 3.0%, DGT-6 3.0%,
SR-9000 2.8%, sodium carbonate amount is 1.0%, and amount of urea is 6%, and sodium sulfate consumption is 6%, stirs, and modulate is upper
Paste material apparent viscosity rotating cylinder viscometer records under 6# rotor 20r/min, and its value is between 1000 ± 100mPa.s.
2, the thickener padding method then applying above-mentioned preparation carries out starching process to cotton woven fabric, and two leachings two are rolled, pressure 1.0
kg/cm2, pick-up: 66.7%) → dry (about 85 DEG C) → spray printing → decatize (102 DEG C × 13min) → soap boiling 1 time (95 DEG C,
20 min, add DM-1522 1 g/L) → cold water washes → dries;
3, reapply and to pattern scan or take pictures with uniscan D6810;
4, using image analysis software-Imagepro plus to 36 round dot test area, area is the biggest, represents clear-cut
Spend relatively poor, otherwise, contour sharpness represents preferable.
According to the method described above, different thickeners contour sharpness on cotton woven fabric is as shown in table 2.
Table 2
Thickener |
DM-8812 |
Sodium alginate |
DGT-6 |
SR-9000 |
Contour sharpness |
3.77 |
4.02 |
3.82 |
4.23 |
By the data of table 2 it can be seen that under same viscosities, different digit printing thickeners carry out starching to identical fabric, print
After controlling the water circulation is washed, its contour sharpness has certain difference, and for this test, DM-8812 is the most suitable with Extraneous sample DGT-6
Performance preferably, has the contour sharpness of excellence, next to that sodium alginate, showing relatively poor is SR-9000, passes through area
Size, the quality of very clear this index of contour sharpness that may determine that different thickener, thus screen the kind of thickener
Class.
In the various embodiments described above, the polysaccharide polymer used surpasses viscosity number code and sticks with paste DM-8812, sodium alginate by Guangdong moral
U.S. fine chemistry industry limited company provides.