Lapel Pin,Metal Laper Pin,Metal Badge Fareast Import And Export Co., Ltd. Second Branch , http://www.nbphotoframe.com
It has been two years since the "two-dimensional method" was promoted. Its scope has focused on Shanghai, Jiangsu, Anhui, Zhejiang, Fujian, Shandong, Shanxi and Sichuan. In response to the requirements of readers at home and abroad, the application of the "two-dimensional method" in packaging printing ink is introduced. It is mainly to absorb the non-polar or non-heat-absorbing system when Held Bland's derivation of the non-polar molecules, and for the system composed of strong polar molecules, because of the formation of hydrogen bonds, it will be exothermic when mixed. The derivation results do not apply to packaging printing inks. For this purpose, the hydrogen bonding force was quantified according to the average value (relative value) of the hydrogen bond strength as assumed by Leiberman, and the average value of the weak hydrogen bond was 0, and the mean value of the hydrogen bond was 1.0, the average value of the strong hydrogen bonds is 1.7. The calculation formulas Q1 and Q2 are the volume fractions of the solvents A and B in the mixed solvent; A and B are the average hydrogen bond strength values ​​of the solvents A and B. Later, when we judged from Beryl whether a resin was dissolved in a solvent (or mixed solvent), first determine the hydrogen bond strength level of the resin and the solvent, and then use the resin and the solvent at the same hydrogen bond level. Whether the solubility parameters are the same or similar to each other, to determine whether the resin is dissolved in the solvent, the ink film gloss, adhesion, etc. after printing, so that the molecular polarity and hydrogen bonding force on the solubility and printability Etc. Compared with the single solubility (including volatility, surface tension, etc.), the accuracy rate reaches 95%. Therefore, after more than two years of promotion and application, it has achieved certain results, and it will not rely on the "stacking" technique of subtracting and subtracting as it used to, which would waste human and material resources, especially time. 
2. Examples of ink design common sense In addition to the basic principles that people usually need, the "two-dimensional ink making method" is mainly to keep in mind the solubility of raw materials, hydrogen bonding force, surface tension and volatilization rate. For example: 
1PA has a solubility of 10.5, a hydrogen bonding force of 25.92, a surface tension of 460, and a volatilization rate of 2.8.
2 CN was 10.7, the hydrogen bonding force was 12.7, the surface tension was 420-45, and the volatilization rate was 3.8.
The solubility of 3PE is 7.9-8.1, the hydrogen bonding force is 16.10, and the surface tension is 310. 
The solubility of 4PP is 7.9-8.6, the hydrogen bond strength is 16.16, and the surface tension is 310. 
5 PET has a solubility of 10.7, a hydrogen bonding force of 21.89, a surface tension of 400-430, and an evaporation rate of 2.67. 
Note: Solubility is generally controlled to be no greater than 1 or not less than 1, and more importantly, the mastery of various materials' pH indicators and the closeness of the solvent's PH value are of course, of course, there is also a nitrogen like CN (nitrocellulose). The relationship between quantity and solubility. In general, almost all solvents cannot dissolve after exceeding 12.5% ​​nitrogen content. 
3. The formation rate of the printing ink film and the dry speed of the printing machine determine the speed of the printing. For the convenience of application, the following is introduced:
10.7 to 0.9 30m/mIn 2 0.9 to 1.3 50m/mIn
31.3～1.9 80m/mIn 4 ​​1.9～2.4 100m/mIn
52.4～2.8 120m/mIn 6 2.8～3.3 150m/mIn
73.3 to 3.6 180m/mIn 83.6 to 4.5 200m/mIn
In addition, the workshop temperature, humidity level and size issues, as well as the level of ink viscosity, etc. must be taken into account here. 
4, general compound ink recipe examples
Titanium Dioxide 20.0HARDLE-15-LP 7.0 Butylene Ketone 17.0Toluene 56.0
Note: 1 Dry speed: 2.58  2 Solubility: 8.99  3 Hydrogen bonding force: 18.4  4 Surface tension: 27.61
5. Examples of basic conversion methods (see the magazine for details) (End)
Two-dimensional ink making method (2)
1, ink basic theory - "two-dimensional method"